CN104165443A - Air conditioning unit mode conversion control method and device and air conditioning system - Google Patents
Air conditioning unit mode conversion control method and device and air conditioning system Download PDFInfo
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- CN104165443A CN104165443A CN201410395367.8A CN201410395367A CN104165443A CN 104165443 A CN104165443 A CN 104165443A CN 201410395367 A CN201410395367 A CN 201410395367A CN 104165443 A CN104165443 A CN 104165443A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 362
- 238000005057 refrigeration Methods 0.000 claims abstract description 235
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 238000010977 unit operation Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 7
- 230000004224 protection Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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Abstract
The invention discloses an air conditioning unit mode conversion control method, an air conditioning unit mode conversion control device and an air conditioning system. The method comprises the following steps: after the air conditioning unit operates for a first preset time in the current operation mode, judging the quantity of the required refrigeration compressors and the quantity of the required hot water compressors; obtaining the next operation mode of the air conditioning unit according to the required number of the refrigeration compressors and the required number of the hot water compressors; judging whether the next operation mode is the same as the current operation mode of the air conditioning unit or not; if so, controlling the air conditioning unit to continuously operate the current operation mode; if not, the air conditioning unit is controlled to be shut down in the current operation mode for a second preset time, and then the next operation mode is operated. The air conditioning unit operation mode switching system can automatically switch the operation mode of the air conditioning unit, starts the corresponding operation mode according to the requirement, can meet the actual use requirement of a user, and can reach the temperature set by the user more quickly. And the required quantity of the compressors of the system is judged while the air conditioning unit operates, so that the heat recovery efficiency is improved.
Description
Technical field
The present invention relates to field of air conditioning, relate in particular to a kind of air conditioner group mode switching control method, device and air-conditioning system.
Background technology
Heat recovery air conditioner unit utilizes condenser heat release to produce domestic hot-water, can either discharge by recovering condensing heat, and domestic hot-water is provided again, possesses refrigeration, heats and three kinds of functions of hot water.Hot water is provided the whole year, freeze summer, heat winter, arranges and actual condition carries out the operation of five kinds of patterns (refrigeration mode, heating mode, refrigeration heat recovery mode, heat heat recovery mode and water heating pattern), pattern control more complicated according to user.
The patent of CN201210328459.5 discloses air cooling module recuperation of heat control method, adopt air-conditioning return water temperature, hot water temperature to compare with cooling/heating set temperature, hot water set temperature respectively, freeze, heat, water heating mode decision, while reaching set temperature when freezing, heating, as hot water does not meet and enters hot water pattern, meet the requirement of the independent water heating of user.The method adopts simple temperature control to carry out judgment model, has error in judgement.
The patent of CN201110053409.6 discloses a kind of air-conditioning unit refrigeration recuperation of heat intelligent control method; adopt temperature range control method; compare air-conditioning inflow temperature and refrigeration start and shutdown temperature interval are set; compare hot water temperature and hot water start and shutdown temperature interval are set; judgement enters standby, refrigeration, refrigeration recuperation of heat, water heating pattern; the autonomous judgment model of unit in multimode when operation module and do not force unified operation, to meet cooling load of air-condition and hot water load simultaneously.The method is confined to single compressor, and will or heat after reaching the condition of setting in refrigeration and enter under holding state, then judges next step pattern, and the real-time adjusting that affect system moves, and causes the decline of heat recovery efficiency.
And unit can produce high condensing pressure and high exhaust temperature under high inflow temperature, even there will be the various protections of compressor to shut down, such as overcurrent protection, high voltage protective etc., thereby affect efficiency and the result of use of unit.Adopting double-compressor parallel to drive can head it off, thereby under high temperature, only allows a compressor operating realize exclusively enjoying of whole condensing heat-exchange areas, avoids because of insufficient the caused compressor protection problem of heat exchange.When 2 compressor operatings, can raise the efficiency.Double-compressor drives pattern control is proposed to requirements at the higher level, should meet various working condition requirements, ensures again the reliable and stable operation of unit safety.Need manual switching pattern or wait until after present mode output effect is met consumers' demand and carry out again pattern conversion but traditional heat recovery mode transforms, causing pattern to be changed not in time, can not respond in time user's request.
Summary of the invention
Based on this, be necessary to change problem not in time for pattern in conventional art, a kind of air conditioner group mode switching control method, device and the air-conditioning system that can automatically carry out timely pattern switching is provided.
A kind of air conditioner group mode switching control method providing for realizing the object of the invention, comprises the following steps:
Air-conditioning unit moves after the first Preset Time under present mode of operation, judges refrigeration compressor quantity required and hot water compressor quantity required;
Obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required;
Whether described next operational mode of judgement is identical with the present mode of operation of air-conditioning unit;
If so, control air-conditioning unit and continue operation present mode of operation;
If not, control described air-conditioning unit and under described present mode of operation, shut down after the second Preset Time, described next operational mode of operation;
Wherein, described present mode of operation and described next operational mode are all the operational mode of air-conditioning, and described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.
As a kind of embodiment of air conditioner group mode switching control method, described obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required before, further comprising the steps of:
Judge whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero;
If so, control the standby of air-conditioning unit;
If not, continue to carry out the step of next operational mode that judges described air-conditioning unit.
As a kind of embodiment of air conditioner group mode switching control method, according to refrigeration leaving water temperature, hot water effluent's temperature, hot water temperature, setting cryogenic temperature and setting hot water temperature, judge described refrigeration compressor quantity required and described hot water compressor quantity required.
As a kind of embodiment of air conditioner group mode switching control method, described according to refrigeration leaving water temperature and set cryogenic temperature judge described refrigeration compressor quantity required, comprise the following steps:
In the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, described refrigeration compressor quantity required is 2;
When the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, described refrigeration compressor quantity required is 1;
In the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0;
When described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit;
Described the first preset difference value is greater than described the second preset difference value.
As a kind of embodiment of air conditioner group mode switching control method, described according to hot water effluent's temperature, hot water temperature and set hot water temperature and judge described hot water compressor quantity required, comprise the following steps:
When the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2;
When the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and be more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, described hot water compressor quantity required is 1;
In the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0;
When described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit;
Described the 4th preset difference value is less than described the 3rd preset difference value.
As a kind of embodiment of air conditioner group mode switching control method, describedly obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required, comprise the following steps:
In the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode;
When described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode;
When described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
As a kind of embodiment of air conditioner group mode switching control method, in the time preferential execution function being set in described air-conditioning unit, describedly obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required, comprise the following steps:
In the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function;
If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function;
If not, next operational mode of judging described air-conditioning unit is heat recovery mode;
When described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode;
When described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern;
Described preferential execution function is refrigerating function or hot water function.
As a kind of embodiment of air conditioner group mode switching control method,
In the time having two compressors can not use because of fault in described air-conditioning unit, described refrigeration compressor quantity required and described hot water compressor quantity required are all 0;
In the time having a compressor can not use because of fault in described air-conditioning unit, the compressor quantity required that quantity is 2 reduces 1.
Based on a kind of air conditioner group mode conversion control device of same inventive concept, comprise number of compressors judge module, the first judge module, the second judge module, the first Executive Module and the second Executive Module, wherein:
Described number of compressors judge module, for moving after the first Preset Time under present mode of operation at air-conditioning unit, judges refrigeration compressor quantity required and hot water compressor quantity required;
Described the first judge module, for obtaining next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required;
Whether described the second judge module is identical with the present mode of operation of air-conditioning unit for judging described next operational mode;
Described the first Executive Module, for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is identical, controls air-conditioning unit and continues operation present mode of operation;
Described the second Executive Module, be used for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is different, control described air-conditioning unit and under described present mode of operation, shut down after the second Preset Time, described next operational mode of operation;
Wherein, described present mode of operation and described next operational mode are all the operational mode of air-conditioning, and described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.
As a kind of embodiment of air conditioner group mode conversion control device, also comprise standby judge module, for judging whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero; If so, control the standby of air-conditioning unit; If not, turn and carry out described the first judge module.
As a kind of embodiment of air conditioner group mode conversion control device, described number of compressors judge module comprises that refrigeration compressor quantity judges that submodule and hot water compressor judge submodule, wherein:
Described refrigeration compressor quantity judges submodule, for judging described refrigeration compressor quantity required according to refrigeration leaving water temperature and setting cryogenic temperature;
In the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, judge that described refrigeration compressor quantity required is 2;
When the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, judge that described refrigeration compressor quantity required is 1;
In the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0;
When described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, judge that described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit; And described the first preset difference value is greater than described the second preset difference value;
Described hot water compressor judges submodule, for judging described hot water compressor quantity required according to hot water effluent's temperature, hot water temperature and setting hot water temperature;
When the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2;
When the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and be more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, described hot water compressor quantity required is 1;
In the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0;
When described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit;
Described the 4th preset difference value is less than described the 3rd preset difference value.
As a kind of embodiment of air conditioner group mode conversion control device, described the first judge module, comprises the first heat recovery mode decision sub-module, the first refrigeration mode decision sub-module and the first hot water mode decision submodule, wherein:
Described the first heat recovery mode decision sub-module, in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode;
Described the first refrigeration mode decision sub-module, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode;
Described the first hot-water module decision sub-module, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
As a kind of embodiment of air conditioner group mode conversion control device, also comprise that priority function arranges module, for preferential execution function being set at described air-conditioning unit;
Described the first judge module also comprises the second heat recovery mode decision sub-module, the second refrigeration mode decision sub-module and the second hot water mode decision submodule; When described priority function arranges while being provided with preferential execution function in module,
Described the second heat recovery mode decision sub-module, for in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function;
If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function;
If not, next operational mode of judging described air-conditioning unit is heat recovery mode;
Described the second refrigeration mode decision sub-module, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode;
Described the second hot water pattern submodule, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern;
Described preferential execution function is refrigerating function or hot water function.
As a kind of embodiment of air conditioner group mode conversion control device, also comprise number of compressors adjusting module, for refrigeration compressor quantity required and hot water compressor quantity required are adjusted;
Described number of compressors adjusting module comprises the first adjustment submodule and the second adjustment submodule, wherein:
Described first adjusts submodule, when having two compressors can not use because of fault when described air-conditioning unit, adjusts described refrigeration compressor quantity required and described hot water compressor quantity required is all 0;
Described second adjusts submodule, and when having a compressor can not use because of fault when described air-conditioning unit, the compressor quantity required that adjustment quantity is 2 reduces 1.
Based on a kind of double-compressor Air Conditioning System with Heat of identical inventive concept, comprise aforesaid air conditioner group mode conversion control device.
Beneficial effect of the present invention comprises:
Air conditioner group mode switching control method, device and the air-conditioning system of a kind of embodiment of the present invention provided by the invention, by the judgement that refrigeration compressor quantity required and hot water compressor quantity required are carried out, determine next operational mode of air-conditioning unit.And automatically the operational mode of air-conditioning unit is changed automatically.Start according to demand corresponding operational mode.Thereby more can meet user's actual user demand, reach faster the temperature that user sets.And the compressor quantity required to system in air-conditioning unit operation judges, improves heat recovery efficiency.
Brief description of the drawings
Fig. 1 is the flow chart of a specific embodiment of a kind of air conditioner group mode of the present invention switching control method;
Fig. 2 is the flow chart of another specific embodiment of a kind of air conditioner group mode of the present invention switching control method;
Fig. 3 is the structural representation of a specific embodiment of a kind of air conditioner group mode of the present invention conversion control device.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the detailed description of the invention of air conditioner group mode switching control method of the present invention, device and air-conditioning system is described.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The air conditioner group mode switching control method of one embodiment of the invention, as shown in Figure 1, comprises the following steps.
S100, air-conditioning unit moves after the first Preset Time under present mode of operation, judges refrigeration compressor quantity required and hot water compressor quantity required.
It should be noted that herein, can and set hot water temperature according to refrigeration leaving water temperature, hot water effluent's temperature, hot water temperature, setting cryogenic temperature, judge described refrigeration compressor quantity required and described hot water compressor quantity required.If number_A is refrigeration compressor quantity required, number_B is hot water compressor quantity required, and number_C is for to cause not spendable number of compressors because can not automatically recovering fault.For double compressor system unit, the value of number_A and number_B and number_C can be 0,1,2, and wherein 0 indicates without related needs, and 1 indicates related needs, and 2 represent that related needs is strong.
S200, obtains next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required.Wherein, described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.In the present invention, describe mainly for the conversion between these three kinds of patterns.
S300, whether described next operational mode of judgement is identical with the present mode of operation of air-conditioning unit.
S400, if so, controls air-conditioning unit and continues operation present mode of operation.
S500, if not, controls described air-conditioning unit and under described present mode of operation, shuts down after the second Preset Time, described next operational mode of operation.
The first Preset Time can be set to 6 minutes herein, and the second Preset Time can be set to 4 minutes.Shut down after 4 minutes, start air-conditioning according to the operational mode judging above and continue operation.
The air conditioner group mode switching control method of the embodiment of the present invention, by the judgement that refrigeration compressor quantity required and hot water compressor quantity required are carried out, determines next operational mode of air-conditioning unit.And automatically the operational mode of air-conditioning unit is changed automatically.Start according to demand corresponding operational mode.Thereby more can meet user's actual user demand, reach faster the temperature that user sets.And the compressor quantity required to system in air-conditioning unit operation judges, improves heat recovery efficiency.
In the embodiment of an air conditioner group mode switching control method, before step S2200, further comprising the steps of therein:
S020, judges whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero; If so, control the standby of air-conditioning unit; If not, continue to carry out the step of next operational mode that judges described air-conditioning unit.Certainly, in the time that refrigeration compressor quantity required and hot water compressor quantity required are all zero, illustrate that air-conditioning unit has met all demands of user, therefore, now control compressor and enter holding state, to save electric energy.
Concrete, in step S100, judge described refrigeration compressor quantity required according to refrigeration leaving water temperature and setting cryogenic temperature, comprise the following steps:
S110, in the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, described refrigeration compressor quantity required is 2.If T
woutfor refrigeration leaving water temperature, be also chilled water leaving water temperature, T_C_SET is the setting cryogenic temperature that user sets, Δ T is temperature deviation.Step S110, is formulated as: T
woutwhen>=T_C_SET+3 × Δ T+2, number_A equals 2.Now the first preset difference value is 2.And having increased the scope of the temperature difference, got three times for the scope of the temperature difference, is also more flexible for the excursion of temperature, meet the requirement that error is calculated.
S120, when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, described refrigeration compressor quantity required is 1.Employing formulae express is: T_C_SET+3 × Δ T+2>=T
woutwhen>=T_C_SET+3 × Δ T+1, number_A equals 1.Now getting the second preset temperature is 1 DEG C.It should be noted that, in formula, the unit of Temperature numerical is all degree Celsius.
S130, in the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0.
This step is described as follows in conjunction with formula:
Work as T
woutwhen≤T_C_SET,
If number_A original value is 2, number_A equals 1, and then continuous detecting is still set up for 1 minute, and number_A equals 0;
If number_A original value is 1, continuous detecting is set up for 1 minute, and number_A equals 0;
If number_A original value is 0, remain unchanged.
S140, when described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit; Described the first preset difference value is greater than described the second preset difference value.
Step S110 by the difference judgement to refrigeration water outlet and setting, adjusts refrigeration compressor quantity required to step S140, thus make refrigeration compressor quantity required with the practical operation situation of air-conditioning unit real-time change.There is the real-time change of refrigeration compressor quantity required, just can the follow-up timely replacing of the running status to air-conditioning unit in real time.
Similar, in step S100, judge described hot water compressor quantity required according to hot water effluent's temperature, hot water temperature and setting hot water temperature, comprise the following steps:
S101, when the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2.
If T
boxfor hot water temperature, T
houtfor hot water effluent's temperature, T_W_SET sets hot water temperature for user, and number_B is hot water compressor quantity required.Step S101 formulae express is: work as T
boxwhen≤T_W_SET-5 and Thout < T_W_SET, number_B equals 2.Now getting the 3rd preset difference value is 5.
S102, when the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and is more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 1.
By formulae express be: T
hout< T_W_SET and T_W_SET-5≤T
box≤ T_W_SET-2, number_B equals 1.Now getting the 4th preset difference value is 1.
It should be noted that herein, " T can be set in other embodiments
box≤ T_W_SET-5 " or " T
hout< T_W_SET and T
box≤ T_W_SET-2 " set up, make number_B equal 1.
S103, in the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0., work as T
box>=T_W_SET, number_B equals 0.
S104, when described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit; Described the 4th preset difference value is less than described the 3rd preset difference value.
Same, step S101 obtains hot water compressor quantity required according to air-conditioning unit actual motion state in real time to step S104, so as follow-up fast, timely the operational mode of air-conditioning unit is changed.
Concrete, as follows to the judgement of three of air-conditioning unit kinds of operational modes:
1) in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode.
2) when described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode.
3) when described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
Concrete, pattern conversion and control process is as follows:
[1] when current actual execution pattern is heat recovery mode,
If 1. number_B=0 and number_A > 0, or number_B > 0 and number_A=0, when meeting after heat recovery mode minimum running time of 6min, first shut down according to heat recovery mode shutdown process, after minimum 4min downtime arrives, more automatically open associative mode according to current demand and carry out;
If 2. number_B > 0 and number_A > 0, continues to keep heat recovery mode;
If 3. number_B=0 and number_A=0, heat recovery mode automatic stand-by.
[2] when current actual execution pattern is hot water pattern,
If 1. number_B=0 and number_A > 0, or number_B > 0 and number_A > 0, when meeting after hot water pattern minimum running time of 6min, first shut down according to hot water pattern shutdown process, after 4min, more automatically open associative mode according to current demand and carry out minimum downtime;
If 2. number_B=0 and number_A=0, hot water pattern automatic stand-by;
If 3. number_B > 0 and number_A=0, continues to keep hot water pattern;
[3] when current actual execution pattern is refrigeration mode,
If 1. number_B > 0 and number_A=0, or number_B > 0 and number_A > 0, when meeting after refrigeration mode minimum running time of 6min, first shut down according to refrigeration mode shutdown process, after minimum 4min downtime arrives, more automatically open associative mode according to current demand and carry out;
If 2. number_B=0 and number_A=0, refrigeration mode automatic stand-by;
If 3. number_B=0 and number_A > 0, continues to keep refrigeration mode.
Preferably, in other embodiments of the invention, can also be to preferential execution function be set in air-conditioning unit.Described preferential execution function is refrigerating function or hot water function.In the time being provided with preferential execution function, the operational mode judgement of concrete air-conditioning unit is as follows:
A) in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function;
If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function;
If not, next operational mode of judging described air-conditioning unit is heat recovery mode.
B) when described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode.
C) when described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
It should be noted that in operational mode judgement, 2 herein) and b) identical, 3) and c) identical, and a) He 1) difference is larger.
Below in conjunction with Fig. 2, to air conditioner group mode, conversion is illustrated.
If the initial setting operational mode of air-conditioning unit is heat recovery mode, after operation the first Preset Time, judge whether priority function setting, if so, by there being priority function (similar and step a)～c)) to judge compressor quantity required; If not, according to normal condition (step 1)～3)) judge compressor quantity required.
Refrigeration has demand and hot water when asking (refrigeration compressor quantity required is non-vanishing, and hot water compressor quantity required is zero), shuts down after the second Preset Time by present mode of operation, starts refrigeration mode, and enters next circulation.
Refrigeration, without asking and when hot water has demand (refrigeration compressor quantity required is zero, and hot water compressor quantity required is non-vanishing), shutting down after the second Preset Time by present mode of operation, starts hot water pattern, and enters next circulation.
In the time freezing and hot water has demand (refrigeration compressor quantity required and hot water compressor quantity required are all non-vanishing), keep current heat recovery mode only to need operation.
In the time freezing and hot water all there is no demand (refrigeration compressor quantity required and hot water compressor quantity required are all zero), air-conditioning unit enters holding state.
Air conditioner group mode switching control method of the present invention, refrigeration and hot water have demand simultaneously, and when all not reaching user and setting demand, carry out heat recovery mode, take into account simultaneously and freeze and hot water effect.Refrigeration has reached user and has set demand, but hot water is still when unmet demand, is automatically transformed into hot water pattern and carries out, and continues to increase hot water effect.Hot water has reached user and has set demand, but while freezing still unmet demand, is automatically transformed into refrigeration mode and carries out, and continues to increase refrigeration.And user can customize mode of priority, if it is preferential to set refrigeration, automatic decision hot water demand in not reducing refrigeration, and be transformed into associative mode; If it is preferential to set hot water, automatic decision refrigeration demand in not reducing hot water effect, and be transformed into associative mode.
It should be noted that, two compressors in air-conditioning unit may cause using because of unrecoverable failure.
In the time having two compressors can not use because of fault in described air-conditioning unit, described refrigeration compressor quantity required and described hot water compressor quantity required are all 0.
In the time having a compressor can not use because of fault in described air-conditioning unit, the compressor quantity required that quantity is 2 reduces 1.
Concrete, if number_C=0, the value of number_B and number_A keeps former result of calculation;
If number_C=1, in the time of number_B=2, number_B=1;
In the time of number_B < 2, keep former result of calculation;
In the time of number_A=2, number_A=1;
In the time of number_A < 2, keep former result of calculation;
If number_C=2, number_B=0, number_A=0.
Corresponding relation between detailed refrigeration compressor quantity required, hot water compressor quantity required, fault number of compressors and air-conditioning unit operational mode is as shown in table 1.
The table 1 air-conditioning unit operational mode table of comparisons
Based on same inventive concept, the present invention also provides a kind of air conditioner group mode conversion control device, because the principle that this device is dealt with problems is similar to aforementioned a kind of air conditioner group mode switching control method, therefore, the enforcement of this system can realize according to the concrete steps of preceding method, repeats part and repeats no more.
A kind of air conditioner group mode conversion control device of one of them embodiment, as shown in Figure 3, comprises number of compressors judge module 100, the first judge module 200, the second judge module 300, the first Executive Module 400 and the second Executive Module 500.Wherein: number of compressors judge module 100, for moving after the first Preset Time under present mode of operation at air-conditioning unit, judges refrigeration compressor quantity required and hot water compressor quantity required; The first judge module 200, for obtaining next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required; Whether the second judge module 300 is identical with the present mode of operation of air-conditioning unit for judging described next operational mode; The first Executive Module 400, for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is identical, controls air-conditioning unit and continues operation present mode of operation; The second Executive Module 500, be used for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is different, controls described air-conditioning unit and under described present mode of operation, shut down after the second Preset Time, described next operational mode of operation; Wherein, described present mode of operation and described next operational mode are all the operational mode of air-conditioning, and described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.
The air conditioner group mode conversion control device of the embodiment of the present invention, by the judgement that refrigeration compressor quantity required and hot water compressor quantity required are carried out, determines next operational mode of air-conditioning unit.And automatically the operational mode of air-conditioning unit is changed automatically.Start according to demand corresponding operational mode.Thereby more can meet user's actual user demand, reach faster the temperature that user sets.And the compressor quantity required to system in air-conditioning unit operation judges, improves heat recovery efficiency.
In the embodiment of an air conditioner group mode conversion control device, also comprise standby judge module 600 therein, for judging whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero; If so, control the standby of air-conditioning unit; If not, turn and carry out described the first judge module 200.
In the embodiment of an air conditioner group mode conversion control device, number of compressors judge module 100 comprises that refrigeration compressor quantity judges that submodule 110 and hot water compressor judge submodule 120 therein.
Wherein, refrigeration compressor quantity judges submodule 110, for judging described refrigeration compressor quantity required according to refrigeration leaving water temperature and setting cryogenic temperature.Specific as follows:
In the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, judge that described refrigeration compressor quantity required is 2;
When the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, judge that described refrigeration compressor quantity required is 1;
In the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0;
When described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, judge that described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit; And described the first preset difference value is greater than described the second preset difference value;
Hot water compressor judges submodule 120, for judging described hot water compressor quantity required according to hot water effluent's temperature, hot water temperature and setting hot water temperature.Specific as follows:
When the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2;
When the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and be more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, described hot water compressor quantity required is 1;
In the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0;
When described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit;
Described the 4th preset difference value is less than described the 3rd preset difference value.
In the embodiment of an air conditioner group mode conversion control device, the first judge module 200, comprises the first heat recovery mode decision sub-module 210, the first refrigeration mode decision sub-module 220 and the first hot water mode decision submodule 230 therein.Wherein: the first heat recovery mode decision sub-module 210, in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode; The first refrigeration mode decision sub-module 220, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode; The first hot-water module decision sub-module 230, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
In the embodiment of an air conditioner group mode conversion control device, also comprise that priority function arranges module 700 therein, for preferential execution function being set at described air-conditioning unit.Wherein, described preferential execution function is refrigerating function or hot water function.
Accordingly, in the first judge module 200, also comprise the second heat recovery mode decision sub-module 201, the second refrigeration mode decision sub-module 202 and the second hot water mode decision submodule 203.
When described priority function arranges while being provided with preferential execution function in module, the second heat recovery mode decision sub-module 201, for in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function.If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function; If not, next operational mode of judging described air-conditioning unit is heat recovery mode.
The second refrigeration mode decision sub-module 202, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode.
The second hot water pattern submodule 203, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
In the embodiment of an air conditioner group mode conversion control device, also comprise number of compressors adjusting module 800 therein, for refrigeration compressor quantity required and hot water compressor quantity required are adjusted.
And number of compressors adjusting module 800 comprises the first adjustment submodule 810 and the second adjustment submodule 820.Wherein: first adjusts submodule 810, when having two compressors can not use because of fault when described air-conditioning unit, adjust described refrigeration compressor quantity required and described hot water compressor quantity required is all 0.Second adjusts submodule 820, and when having a compressor can not use because of fault when described air-conditioning unit, the compressor quantity required that adjustment quantity is 2 reduces 1.
Meanwhile, the present invention also provides a kind of double-compressor Air Conditioning System with Heat, and it comprises aforesaid air conditioner group mode conversion control device.Make air-conditioning system can according to the actual motion state of air-conditioning unit in real time, conversion operation pattern fast, reach faster the demand that user sets, meanwhile, improve the efficiency of recuperation of heat.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (15)
1. an air conditioner group mode switching control method, is characterized in that, comprises the following steps:
Air-conditioning unit moves after the first Preset Time under present mode of operation, judges refrigeration compressor quantity required and hot water compressor quantity required;
Obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required;
Whether described next operational mode of judgement is identical with the present mode of operation of air-conditioning unit;
If so, control air-conditioning unit and continue operation present mode of operation;
If not, control described air-conditioning unit and under described present mode of operation, shut down after the second Preset Time, described next operational mode of operation;
Wherein, described present mode of operation and described next operational mode are all the operational mode of air-conditioning, and described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.
2. air conditioner group mode switching control method according to claim 1, it is characterized in that, described obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required before, further comprising the steps of:
Judge whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero;
If so, control the standby of air-conditioning unit;
If not, continue to carry out the step of next operational mode that judges described air-conditioning unit.
3. air conditioner group mode switching control method according to claim 1, it is characterized in that, according to refrigeration leaving water temperature, hot water effluent's temperature, hot water temperature, setting cryogenic temperature and setting hot water temperature, judge described refrigeration compressor quantity required and described hot water compressor quantity required.
4. air conditioner group mode switching control method according to claim 3, is characterized in that, described according to refrigeration leaving water temperature and set cryogenic temperature judge described refrigeration compressor quantity required, comprise the following steps:
In the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, described refrigeration compressor quantity required is 2;
When the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, described refrigeration compressor quantity required is 1;
In the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0;
When described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit;
Described the first preset difference value is greater than described the second preset difference value.
5. air conditioner group mode switching control method according to claim 3, is characterized in that, described according to hot water effluent's temperature, hot water temperature and set hot water temperature and judge described hot water compressor quantity required, comprises the following steps:
When the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2;
When the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and be more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, described hot water compressor quantity required is 1;
In the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0;
When described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit;
Described the 4th preset difference value is less than described the 3rd preset difference value.
6. air conditioner group mode switching control method according to claim 1, is characterized in that, describedly obtains next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required, comprises the following steps:
In the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode;
When described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode;
When described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
7. air conditioner group mode switching control method according to claim 1, it is characterized in that, in the time preferential execution function being set in described air-conditioning unit, describedly obtain next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required, comprise the following steps:
In the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function;
If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function;
If not, next operational mode of judging described air-conditioning unit is heat recovery mode;
When described refrigeration compressor quantity required is greater than 0, and described hot water compressor quantity required is 0 o'clock, and next operational mode of judging described air-conditioning unit is refrigeration mode;
When described refrigeration compressor quantity required is 0, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern;
Described preferential execution function is refrigerating function or hot water function.
8. according to the air conditioner group mode switching control method described in claim 4 or 5, it is characterized in that:
In the time having two compressors can not use because of fault in described air-conditioning unit, described refrigeration compressor quantity required and described hot water compressor quantity required are all 0;
In the time having a compressor can not use because of fault in described air-conditioning unit, the compressor quantity required that quantity is 2 reduces 1.
9. an air conditioner group mode conversion control device, is characterized in that, comprises number of compressors judge module, the first judge module, the second judge module, the first Executive Module and the second Executive Module, wherein:
Described number of compressors judge module, for moving after the first Preset Time under present mode of operation at air-conditioning unit, judges refrigeration compressor quantity required and hot water compressor quantity required;
Described the first judge module, for obtaining next operational mode of air-conditioning unit according to described refrigeration compressor quantity required and described hot water compressor quantity required;
Whether described the second judge module is identical with the present mode of operation of air-conditioning unit for judging described next operational mode;
Described the first Executive Module, for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is identical, controls air-conditioning unit and continues operation present mode of operation;
Described the second Executive Module, be used for according to the judged result of described the second judge module, in the time that the present mode of operation of described next operational mode and air-conditioning unit is different, control described air-conditioning unit and under described present mode of operation, shut down after the second Preset Time, described next operational mode of operation;
Wherein, described present mode of operation and described next operational mode are all the operational mode of air-conditioning, and described operational mode comprises refrigeration mode, hot water pattern and heat recovery mode.
10. air conditioner group mode conversion control device according to claim 9, is characterized in that, also comprises standby judge module, for judging whether described refrigeration compressor quantity required and described hot water compressor quantity required are zero; If so, control the standby of air-conditioning unit; If not, turn and carry out described the first judge module.
11. air conditioner group mode conversion control devices according to claim 9, is characterized in that, described number of compressors judge module comprises that refrigeration compressor quantity judges that submodule and hot water compressor judge submodule, wherein:
Described refrigeration compressor quantity judges submodule, for judging described refrigeration compressor quantity required according to refrigeration leaving water temperature and setting cryogenic temperature;
In the time that the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is more than or equal to the first preset difference value, judge that described refrigeration compressor quantity required is 2;
When the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the first preset difference value, and while being more than or equal to the second preset difference value, judge that described refrigeration compressor quantity required is 1;
In the time that described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature, continuous detecting one minute, if described refrigeration leaving water temperature is less than or equal to described setting cryogenic temperature in one minute always, the refrigeration compressor quantity required of current air-conditioning unit is reduced to 1, until described refrigeration compressor quantity required is 0;
When described refrigeration leaving water temperature is greater than described setting cryogenic temperature, and when the difference of described refrigeration leaving water temperature and described setting cryogenic temperature is less than described the second preset difference value, judge that described refrigeration compressor quantity required is identical with the refrigeration compressor quantity required of current air-conditioning unit; And described the first preset difference value is greater than described the second preset difference value;
Described hot water compressor judges submodule, for judging described hot water compressor quantity required according to hot water effluent's temperature, hot water temperature and setting hot water temperature;
When the difference of described setting hot water temperature and described hot water temperature is more than or equal to the 3rd preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, and described hot water compressor quantity required is 2;
When the difference of described setting hot water temperature and described hot water temperature is less than described the 3rd preset difference value, and be more than or equal to the 4th preset difference value, and described hot water effluent's temperature is while being less than described setting hot water temperature, described hot water compressor quantity required is 1;
In the time that described hot water temperature is more than or equal to described setting hot water temperature, described hot water compressor quantity required is 0;
When described hot water temperature is less than described setting hot water temperature, and when the difference of described setting hot water temperature and described hot water temperature is less than described the 4th preset difference value, described hot water compressor quantity required is identical with the hot water compressor quantity required of current air-conditioning unit;
Described the 4th preset difference value is less than described the 3rd preset difference value.
12. air conditioner group mode conversion control devices according to claim 9, is characterized in that, described the first judge module comprises the first heat recovery mode decision sub-module, the first refrigeration mode decision sub-module and the first hot water mode decision submodule, wherein:
Described the first heat recovery mode decision sub-module, in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, next operational mode of judging air-conditioning unit is heat recovery mode;
Described the first refrigeration mode decision sub-module, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode;
Described the first hot-water module decision sub-module, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern.
13. air conditioner group mode conversion control devices according to claim 9, is characterized in that, also comprise that priority function arranges module, for preferential execution function being set at described air-conditioning unit;
Described the first judge module also comprises the second heat recovery mode decision sub-module, the second refrigeration mode decision sub-module and the second hot water mode decision submodule; When described priority function arranges while being provided with preferential execution function in module,
Described the second heat recovery mode decision sub-module, for in the time that described refrigeration compressor quantity required and described hot water compressor quantity required are all greater than 0, judge whether compressor quantity required corresponding to described preferential execution function is greater than the compressor quantity required of another function;
If so, next operational mode of judging described air-conditioning unit is operational mode corresponding to described preferential execution function;
If not, next operational mode of judging described air-conditioning unit is heat recovery mode;
Described the second refrigeration mode decision sub-module, for being greater than 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is 0 o'clock, next operational mode of judging described air-conditioning unit is refrigeration mode;
Described the second hot water pattern submodule, for being 0 when described refrigeration compressor quantity required, and described hot water compressor quantity required is greater than at 0 o'clock, and next operational mode of judging described air-conditioning unit is hot water pattern;
Described preferential execution function is refrigerating function or hot water function.
14. air conditioner group mode conversion control devices according to claim 11, is characterized in that, also comprise number of compressors adjusting module, for refrigeration compressor quantity required and hot water compressor quantity required are adjusted;
Described number of compressors adjusting module comprises the first adjustment submodule and the second adjustment submodule, wherein:
Described first adjusts submodule, when having two compressors can not use because of fault when described air-conditioning unit, adjusts described refrigeration compressor quantity required and described hot water compressor quantity required is all 0;
Described second adjusts submodule, and when having a compressor can not use because of fault when described air-conditioning unit, the compressor quantity required that adjustment quantity is 2 reduces 1.
15. 1 kinds of double-compressor Air Conditioning System with Heats, is characterized in that, comprise the air conditioner group mode conversion control device described in claim 9 to 14 any one.
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| CN111692637A (en) * | 2020-06-18 | 2020-09-22 | 广东美的制冷设备有限公司 | Control method, control device, air conditioning system, and computer-readable storage medium |
| WO2021253987A1 (en) * | 2020-06-18 | 2021-12-23 | 广东美的制冷设备有限公司 | Control method, control device, air conditioning system, and computer readable storage medium |
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