CN103375935A - Two-stage compression circulation system and control method of air conditioner with same - Google Patents
Two-stage compression circulation system and control method of air conditioner with same Download PDFInfo
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- CN103375935A CN103375935A CN2012101252890A CN201210125289A CN103375935A CN 103375935 A CN103375935 A CN 103375935A CN 2012101252890 A CN2012101252890 A CN 2012101252890A CN 201210125289 A CN201210125289 A CN 201210125289A CN 103375935 A CN103375935 A CN 103375935A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000006835 compression Effects 0.000 title claims abstract description 21
- 238000007906 compression Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000005057 refrigeration Methods 0.000 claims abstract description 9
- 230000001502 supplementing effect Effects 0.000 claims abstract description 8
- 238000007791 dehumidification Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
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Abstract
The invention provides a two-stage compression circulation system and a control method of an air conditioner with the same. The two-stage compression circulation system comprises a compressor, wherein an air supplementing port is arranged on the compressor; the indoor heat exchanger is communicated with the compressor; the outdoor heat exchanger is communicated with the compressor; further comprising: the flash evaporator is respectively communicated with the outdoor heat exchanger and the indoor heat exchanger; and the electromagnetic valve is respectively communicated with the air supplementing port of the compressor and the air outlet of the flash evaporator. According to the control method of the air conditioner, the air conditioner comprises the two-stage compression circulation system, and when the following conditions are met simultaneously, air is supplied to the compressor: the running frequency of the compressor is F, the switching frequency of the compressor is F, and F is more than or equal to F; in the refrigeration mode, the outdoor environment temperature is T1, the switching temperature is T, and T1 is more than or equal to T; or in the heating mode, the outdoor environment temperature is T2, the switching temperature T is T, and T is more than or equal to T2; the starting-up running time is t, and the running time of the air conditioner reaches t after starting up.
Description
Technical field
The present invention relates to the compressor control field, especially, relate to a kind of two-stage compression circulatory system and have the control method of its air-conditioner.
Background technology
The vast heating districts such as China Huanghe valley, North China, in the winter of cold, because pressure ratio is large, refrigerant flow is low, and the heating capacity of traditional air-cooled heat pump unit is significantly decayed, and can't satisfy the requirement of heat supply heating, also can't reliability service.Traditional air cool heat pump air conditioning system generally can only use under the environment more than-5 ℃.Need a kind of heating performance that had both improved system of exploitation, can improve again the energy-conservation comfortable small rotor compression air-cooled heat pump unit of the refrigeration performance of system.
Summary of the invention
The object of the invention is to provide a kind of two-stage compression circulatory system and has the control method of its air-conditioner, to solve air-conditioner in use efficient and the energy-conservation technical problem that can not take into account.
For achieving the above object, the invention provides a kind of two-stage compression circulatory system, comprise compressor, be provided with gas supplementing opening on the compressor; Indoor heat exchanger is connected with compressor; Outdoor heat exchanger is connected with compressor; Also comprise: flash vessel is connected with outdoor heat exchanger and indoor heat exchanger respectively; Magnetic valve is connected with the gas supplementing opening of compressor and the gas outlet of flash vessel respectively.
Further, the internal diameter of the path of magnetic valve is d, 1mm≤d≤3mm.
Further, also comprise the control module that the control magnetic valve opens and closes, control module is electrically connected with magnetic valve.
Further, be provided with the first throttle valve between flash vessel and the outdoor heat exchanger, be provided with the second choke valve between flash vessel and the indoor heat exchanger.
The present invention also provides a kind of control method of air-conditioner, and air-conditioner comprises the aforesaid two-stage compression circulatory system, and when satisfying following condition simultaneously, give the compressor tonifying Qi: the operating frequency of compressor is F, and the switching frequency of compressor is f, F 〉=f; Under the refrigeration mode, outdoor environment temperature is T1, and switching temperature is T, T1 〉=T; Or under the heating mode, outdoor environment temperature is T2, switching temperature T, T2≤T; Boot running time is t, and reach t running time after the start of air-conditioner.
Further, control module control magnetic valve is opened to compressor tonifying Qi or control closed electromagnetic valve and is stopped to the compressor tonifying Qi.
Further, heat under the defrost pattern, shut electromagnetic valve stops to the compressor tonifying Qi.
Further, under the dehumidification mode, shut electromagnetic valve stops to the compressor tonifying Qi.
Further, switching frequency is f, 20Hz≤f≤40Hz.
Further, under the refrigeration mode, switching temperature is T, 20 ℃≤T≤25 ℃.
Further, under the heating mode, switching temperature is T, 10 ℃≤T≤15 ℃.
Further, boot running time is t, 8s≤t≤15s.
The present invention has following beneficial effect:
The present invention has improved the operating efficiency of the two-stage compression circulatory system, energy savings by the switch of solenoid control compressor tonifying Qi is set.Control method is controlled air-conditioner according to conditions such as compressor operating, outdoor environment temperature, boot running time take energy-conservation and efficient as target, guarantees secondary circulation reliability service, makes system not only energy-conservation but also improved operating efficiency.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the two-stage compression circulatory system of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, according to the two-stage compression circulatory system of the present invention, comprising: compressor 1 is provided with gas supplementing opening on the compressor 1; Indoor heat exchanger 3 is connected with compressor 1; Outdoor heat exchanger 4 is connected with compressor 1; Also comprise: flash vessel 5 is connected with outdoor heat exchanger 3 and indoor heat exchanger 4 respectively; Magnetic valve 8 is connected with the gas supplementing opening of compressor 1 and the gas outlet of flash vessel 5 respectively.Cross valve 2 is connected with outdoor heat exchanger 3 and indoor heat exchanger respectively, and cross valve 2 also is connected with compressor 1.By the switch of solenoid control compressor tonifying Qi is set, improved the operating efficiency of the two-stage compression circulatory system, energy savings.
Referring to Fig. 1, the internal diameter of the path of magnetic valve 8 is d, 1mm≤d≤3mm.Internal diameter in this scope has certain capillary throttle effect, can form height pressure reduction, stops the phenomenon that occurs in the gas with liquid during tonifying Qi.
Referring to Fig. 1, also comprise the control module that control magnetic valve 8 opens and closes, control module is electrically connected with magnetic valve 8.By the power on/off of magnetic valve 8, and then the switch of realization control tonifying Qi process, simple.
Referring to Fig. 1, be provided with first throttle valve 7a between flash vessel 5 and the outdoor heat exchanger 3, be provided with the second choke valve 7b between flash vessel 5 and the indoor heat exchanger 4.
According to the control method of air-conditioner of the present invention, air-conditioner comprises the aforesaid two-stage compression circulatory system, and when satisfying following condition simultaneously, give compressor 1 tonifying Qi: the operating frequency of compressor 1 is F, and the switching frequency of compressor 1 is f, F 〉=f; Under the refrigeration mode, outdoor environment temperature is T1, and switching temperature is T, T1 〉=T; Or under the heating mode, outdoor environment temperature is T2, switching temperature T, T2≤T; Boot running time is t, and reach t running time after the start of air-conditioner.
Control module control magnetic valve 8 opens to cut out to compressor 1 tonifying Qi or control magnetic valve 8 and stops to compressor 1 tonifying Qi.Realize by magnetic valve 8 energising cut-off switch controls, be simple and easy to realize.Open during magnetic valve 8 energising, make solenoid (circle often bursts at the seams) energising, the beginning tonifying Qi; Close during outage, the solenoid outage stops tonifying Qi.
Heat under the defrost pattern, shut electromagnetic valve 8 stops to compressor 1 tonifying Qi.Heating defrost process actual is with the cryogenic refrigeration operation, then needs to close the reliability that tonifying Qi guarantees whole compressibility.
Under the dehumidification mode, shut electromagnetic valve 8 stops to compressor 1 tonifying Qi.The running frequency that dehumidifies in addition is lower, also can not obviously increase latent heat even open tonifying Qi, improves moisture removal, and the efficient of namely opening tonifying Qi is low, so do not need to open tonifying Qi.
Switching frequency is f, 20Hz≤f≤40Hz.When compressor frequency then disconnects tonifying Qi during less than switching frequency, when being higher than under the switching frequency condition, then opening tonifying Qi and improve cooling or heating effect.When compressor frequency is higher than switching frequency, illustrate that compressor can not reach desired effects, open tonifying Qi this moment, improve compressor efficiency, to reach desired effects, switching frequency generally is arranged between the 20-40Hz according to different situations.
Under the refrigeration mode, switching temperature T, 20 ℃≤T≤25 ℃.Under the heating mode, switching temperature T, 10 ℃≤T≤15 ℃.
Boot running time is t, 8s≤t≤15s.In order to guarantee the whole system security of operation, after start is stable, carry out again the switching of tonifying Qi process, therefore need to open again tonifying Qi behind the start operation certain hour, generally setting boot running time is 8-15s.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The present invention has improved the operating efficiency of the two-stage compression circulatory system, energy savings by the switch of solenoid control compressor tonifying Qi is set.Control method is take energy-conservation and efficient as target, control according to compressor operating, outdoor environment temperature, boot running time etc., guarantee secondary circulation reliability service, and with converter technique and secondary circulation combination, improved the level of comfort of convertible frequency air-conditioner, widened the use range of operation of convertible frequency air-conditioner, the range of operation under the low temperature condition especially, the energy conservation characteristic of simultaneously optimization and improvement convertible frequency air-conditioner.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. two-stage compression circulatory system comprises:
Compressor (1), described compressor is provided with gas supplementing opening on (1);
Indoor heat exchanger (4) is connected with described compressor (1);
Outdoor heat exchanger (3) is connected with described compressor (1);
It is characterized in that, also comprise:
Flash vessel (5) is connected with described outdoor heat exchanger (3) and described indoor heat exchanger (4) respectively;
Magnetic valve (8) is connected with the gas supplementing opening of described compressor (1) and the gas outlet of described flash vessel (5) respectively.
2. the two-stage compression circulatory system according to claim 1 is characterized in that, the internal diameter of the path of described magnetic valve (8) is d, 1mm≤d≤3mm.
3. the two-stage compression circulatory system according to claim 1 is characterized in that, also comprises the control module that control magnetic valve (8) opens and closes, and described control module is electrically connected with described magnetic valve (8).
4. the two-stage compression circulatory system according to claim 3, it is characterized in that, be provided with first throttle valve (7a) between described flash vessel (5) and the described outdoor heat exchanger (3), be provided with the second choke valve (7b) between described flash vessel (5) and the described indoor heat exchanger (4).
5. the control method of an air-conditioner, described air-conditioner comprises each described two-stage compression circulatory system in the claim 1 to 4, it is characterized in that,
When satisfying following condition simultaneously, give described compressor (1) tonifying Qi:
The operating frequency of described compressor (1) is F, and the switching frequency of described compressor (1) is f, F 〉=f;
Under the refrigeration mode, outdoor environment temperature is T1, and switching temperature is T, T1 〉=T; Or under the heating mode, outdoor environment temperature is T2, switching temperature T, T2≤T;
Boot running time is t, and reach t running time after the start of described air-conditioner.
6. the control method of air-conditioner according to claim 5, it is characterized in that control module is controlled described magnetic valve (8) and opened to (1) tonifying Qi of described compressor or control described magnetic valve (8) and close and stop to described compressor (1) tonifying Qi.
7. the control method of air-conditioner according to claim 6 is characterized in that, heats under the defrost pattern, closes described magnetic valve (8), stops to described compressor (1) tonifying Qi.
8. the control method of air-conditioner according to claim 6 is characterized in that, under the dehumidification mode, closes described magnetic valve (8), stops to described compressor (1) tonifying Qi.
9. the control method of air-conditioner according to claim 5 is characterized in that, described switching frequency is f, 20Hz≤f≤40Hz.
10. the control method of air-conditioner according to claim 5 is characterized in that, under the refrigeration mode, described switching temperature is T, 20 ℃≤T≤25 ℃.
11. the control method of air-conditioner according to claim 5 is characterized in that, under the heating mode, described switching temperature is T, 10 ℃≤T≤15 ℃.
12. the control method of air-conditioner according to claim 5 is characterized in that, described boot running time is t, 8s≤t≤15s.
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| CN201210125289.0A CN103375935B (en) | 2012-04-25 | 2012-04-25 | Two-stage compression circulation system and control method of air conditioner with same |
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| CN201210125289.0A CN103375935B (en) | 2012-04-25 | 2012-04-25 | Two-stage compression circulation system and control method of air conditioner with same |
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| CN103375935B CN103375935B (en) | 2016-03-23 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110908A (en) * | 2014-07-03 | 2014-10-22 | 珠海格力电器股份有限公司 | Three-stage compression cascade circulation heat pump system and control method thereof |
| CN104456840A (en) * | 2014-11-13 | 2015-03-25 | 广东美的制冷设备有限公司 | Enhanced vapor injection air conditioner and control method thereof |
| CN104596166A (en) * | 2013-10-31 | 2015-05-06 | 海尔集团公司 | Air conditioner and air supplying and enthalpy adding method thereof |
| CN105091405A (en) * | 2015-07-22 | 2015-11-25 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit and method for improving air suction capacity of air conditioner unit |
| CN106196482A (en) * | 2016-07-28 | 2016-12-07 | 广东美芝制冷设备有限公司 | The control method of air conditioning system |
| CN109539623A (en) * | 2018-11-28 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning system and air supplementing and enthalpy increasing control method thereof |
| CN109945440A (en) * | 2019-03-29 | 2019-06-28 | 海信（山东）空调有限公司 | The heat-production control method and Gas-supplying enthalpy-increasing system of Gas-supplying enthalpy-increasing system |
| CN109990429A (en) * | 2019-03-15 | 2019-07-09 | 奥克斯空调股份有限公司 | A kind of air conditioner defrosting control method and air conditioner |
| CN110234938A (en) * | 2017-02-01 | 2019-09-13 | Lg电子株式会社 | The outdoor system of air conditioner |
| CN111156651A (en) * | 2020-01-14 | 2020-05-15 | 珠海格力电器股份有限公司 | Gulp valve control method, compressor, air conditioner, memory and controller |
| CN111306731A (en) * | 2020-03-03 | 2020-06-19 | 珠海格力电器股份有限公司 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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| CN104596166A (en) * | 2013-10-31 | 2015-05-06 | 海尔集团公司 | Air conditioner and air supplying and enthalpy adding method thereof |
| CN104110908A (en) * | 2014-07-03 | 2014-10-22 | 珠海格力电器股份有限公司 | Three-stage compression cascade circulation heat pump system and control method thereof |
| CN104110908B (en) * | 2014-07-03 | 2016-08-31 | 珠海格力电器股份有限公司 | Three-stage compression cascade circulation heat pump system and control method thereof |
| CN104456840B (en) * | 2014-11-13 | 2017-06-13 | 广东美的制冷设备有限公司 | Air injection enthalpy-increasing type air-conditioning and its control method |
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| CN110234938A (en) * | 2017-02-01 | 2019-09-13 | Lg电子株式会社 | The outdoor system of air conditioner |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN109539623A (en) * | 2018-11-28 | 2019-03-29 | 珠海格力电器股份有限公司 | Air conditioning system and air supplementing and enthalpy increasing control method thereof |
| CN109990429A (en) * | 2019-03-15 | 2019-07-09 | 奥克斯空调股份有限公司 | A kind of air conditioner defrosting control method and air conditioner |
| CN109945440A (en) * | 2019-03-29 | 2019-06-28 | 海信（山东）空调有限公司 | The heat-production control method and Gas-supplying enthalpy-increasing system of Gas-supplying enthalpy-increasing system |
| CN111156651A (en) * | 2020-01-14 | 2020-05-15 | 珠海格力电器股份有限公司 | Gulp valve control method, compressor, air conditioner, memory and controller |
| CN111306731A (en) * | 2020-03-03 | 2020-06-19 | 珠海格力电器股份有限公司 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
| CN111306731B (en) * | 2020-03-03 | 2021-03-23 | 珠海格力电器股份有限公司 | Air conditioner electromagnetic valve control method, device and equipment, electromagnetic valve system and air conditioner |
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