CN109556256A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN109556256A CN109556256A CN201811208855.8A CN201811208855A CN109556256A CN 109556256 A CN109556256 A CN 109556256A CN 201811208855 A CN201811208855 A CN 201811208855A CN 109556256 A CN109556256 A CN 109556256A
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- compressor
- pipeline
- air conditioner
- controller
- valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning technical fields, and in particular to a kind of air conditioner.Present invention seek to address that the problems caused by existing air conditioner is because of compressor " feed flow is insufficient ".For this purpose, air conditioner of the invention includes the cooling line system being arranged between the cooling entrance of compressor and condenser, some refrigerant in condenser flow to the cooling entrance of compressor through cooling line system and then flows into compressor；Cooling line system includes cooling line and the pump installation that is arranged on cooling line, and pump installation is connect with controller, and controller is configured as the start and stop according to the pressure ratio of compressor control pump installation.Compressor can be flowed into the refrigerant guaranteed in condenser by starting pump installation when pressure ratio is lower than given threshold, and then improve the pressure ratio of compressor, it realizes air conditioner and remains to the effect operated normally when the ambient temperature of condenser is lower, to guarantee that air conditioner is still able to satisfy refrigeration demand under this condition.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to a kind of air conditioner.
Background technique
Compressor is one of most important device of air conditioner, and compressor can be by low-pressure refrigerant gas boil down to high pressure
Gaseous refrigerant, the pressure ratio that compressor remains certain are most important for the normal operation of air conditioner.It is with magnetic suspension air conditioner
Example usually heat exchanging part liquid refrigerant will flow back into compressor and cool down compressor internal electron member device with this within the condenser
Part and motor etc..The refrigerant when environment temperature locating for the condenser is lower, due to pressure reduction problem, after exchanging heat within the condenser
It can not flow back into compressor, it may occur that the case where compressor " feed flow insufficient ", cause the pressure ratio of compressor to reduce, this can cause
The part temperatures such as its internal motor and frequency converter rise, and when part temperatures reach certain numerical value, compressor will do it pressure
Into unloading order so as to cause refrigerating capacity decline, user's normal use is influenced, and when the temperature of frequency converter is more than setting
Numerical value when compressor even can stop working.
In view of the above-mentioned problems, in the prior art by manually controlling the start and stop of blower fan of cooling tower, to ambient temperature compared with
The temperature that the cooling water in condenser is reduced when low reduces degree, but which is time-consuming and laborious and improvement is not obvious.
Pressure ratio is improved also by the flow of control chilled water and cooling water in the prior art, or the maximum by controlling compressor turns
Speed etc. reduces the calorific value of frequency converter and motor, it is apparent that can all influence the refrigeration of air conditioner.
Correspondingly, this field needs a kind of air conditioner to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, i.e., the problems caused by compressor is because of " feed flow is insufficient ", the present invention
Provide a kind of air conditioner, the air conditioner include compressor, condenser and be arranged in the compressor cooling entrance and
Cooling line system between the condenser, some refrigerant in the condenser flow to institute through the cooling line system
It states the cooling entrance of compressor and then flows into the compressor；The air conditioner further includes controller, the cooling line system
System includes cooling line and the pump installation being arranged on the cooling line, and the pump installation is connect with controller, the control
Device is configured as controlling the start and stop of the pump installation according to the pressure ratio of the compressor；When the pressure ratio of the compressor is lower than setting
The controller controls the pump installation starting when threshold value, when the pressure ratio of the compressor is greater than or equal to the given threshold
The controller controls the pump installation and stops working or in stop working state.
In the optimal technical scheme of above-mentioned air conditioner, the cooling line system further includes for measuring the compressor
Exhaust outlet air pressure the first manograph and the air entry for measuring the compressor air pressure the second manograph；It is described
Controller is connect with first manograph and second manograph respectively, and is configured as with first manograph
Pressure ratio of the ratio of the measured value of measured value and second manograph as the compressor.
In the optimal technical scheme of above-mentioned air conditioner, the cooling line includes the first pipeline and second being arranged in parallel
Pipeline, first pipeline and second pipeline are connect with the cooling entrance of the compressor, wherein the pump installation is set
It sets on first pipeline.
In the optimal technical scheme of above-mentioned air conditioner, the first valve, first valve are provided on first pipeline
Door is connect with the controller, and the controller, which is also configured to the first valve according to the start-up and shut-down control of the pump installation, is
No unlatching, wherein the controller controls first valve opening when pump installation starting, when the pump installation is in
The controller controls the first valve closure when stop working state.
In the optimal technical scheme of above-mentioned air conditioner, pressure-regulating device is additionally provided on first pipeline.
In the optimal technical scheme of above-mentioned air conditioner, the pressure-regulating device is pressure-regulating valve.
In the optimal technical scheme of above-mentioned air conditioner, the cooling line further includes that third pipeline is arranged, and described first
Pipeline and second pipeline are connect by the third pipeline with the cooling entrance of the compressor；It is set on the third pipeline
It is equipped with third valve and device for drying and filtering.
In the optimal technical scheme of above-mentioned air conditioner, the cooling line includes the 4th pipe being arranged in compressor
The both ends on road, the 4th pipeline are connect with the compression chamber of the cooling entrance of the compressor and the compressor respectively, refrigeration
Agent flows through the 4th pipeline and cools down to the motor and electronic device of the compressor.
In the optimal technical scheme of above-mentioned air conditioner, the electronic device includes frequency converter, is arranged on the frequency converter
There is the temperature sensor for measuring its temperature, is provided with third valve, the third valve and the temperature on the cooling line
Sensor is connect with the compressor controller of the compressor respectively, and the compressor controller is configured as according to the frequency conversion
The unlatching and closure of the temperature control third valve of device, wherein when the temperature of the frequency converter is higher than set temperature, the control
Device processed controls the third valve opening.
In the optimal technical scheme of above-mentioned air conditioner, the compressor is magnetic suspension compressor.
Air conditioner of the invention comprising the cooling line system between the cooling entrance of compressor and condenser is set
System, cooling line system include pump installation and connect pump installation so that controller is controlled according to the pressure ratio of compressor with controller
The start and stop of pump installation, thus can with the refrigerant guaranteed in condenser by starting pump installation when pressure ratio is lower than given threshold
Compressor is flowed into, and then improves the pressure ratio of compressor, air conditioner is realized and is remained to when the ambient temperature of condenser is lower normally
Operational effect, to guarantee that air conditioner is still able to satisfy refrigeration demand under this condition.
In the preferred technical solution of the present invention, cooling line includes in parallel the first pipeline and the second pipeline, pass through by
The refrigerant realized when pump installation does not start in cooling line, which is arranged on the first pipeline, in pump installation can swimmingly flow to pressure
The technical effect of contracting machine.By the way that the first valve is arranged on the first pipeline, and by controller according to the start-up and shut-down control of pump installation
Whether the first valve is opened, and can avoid the influence of flowing of the pump installation to refrigerant in cooling line completely.By
Pressure-regulating device is arranged on one pipeline can adjust the amount that the refrigerant in compressor is flowed back into through the first pipeline, so that
Water cooler is run with suitable pressure ratio.
In the preferred technical solution of the present invention, cooling line includes third pipeline, by the way that third pipeline will be used to realize
The connection of the cooling entrance of first pipeline and the second pipeline and compressor is advantageously implemented the cold of cooling line system and compressor
But entrance connects；It can be led to when not needing refrigerant and being flowed in cooling line by the way that the second valve is arranged on the first pipeline
Crossing the second valve of closing can be realized.
In the preferred technical solution of the present invention, by the way that device for drying and filtering is arranged on cooling line, it can guarantee from cooling
Inlet return to compressor refrigerant moisture-free or solid impurity to prevent from causing to damage to compressor, to improve air-conditioning
The service life of device.
In the preferred technical solution of the present invention, cooling line includes the 4th pipeline being arranged in compressor, flows through
The refrigerant of four pipelines can motor to compressor and electronic device cool down and cause to avoid because frequency converter temperature is excessively high
Compressor the problem of stopping working.By temperature sensor being arranged on frequency converter to measure its temperature, and according to frequency converter
Temperature temperature control cooling line on third valve whether open, can enter not need refrigerant through cooling entrance
By closing third valve so that refrigerant is more used to meet refrigeration demand when compressor.
In the preferred technical solution of the present invention, magnetic suspension compressor receives the shadow of " feed flow is insufficient " and motor and frequency converter
It rings significantly, therefore, when compressor is magnetic suspension compressor, air conditioner provided by the invention is especially suitable.
Detailed description of the invention
Air conditioner of the invention is described with reference to the accompanying drawings and in conjunction with magnetic suspension water cooler.In attached drawing:
Fig. 1 is the partial structural diagram of one of embodiment of the present invention magnetic suspension water cooler；
Fig. 2 is the partial structural diagram of another magnetic suspension water cooler in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of one of embodiment of the present invention magnetic suspension compressor；
Fig. 4 is the structural schematic diagram of one of embodiment of the present invention magnetic suspension water cooler.
Reference signs list:
1- magnetic suspension compressor, 10- compressor controller, 11- exhaust outlet of compressor, 12- compressor air suction mouth, 13- pressure
Contracting machine cools down entrance, 14- motor, 15- electronic device, 151- frequency converter, 16- compression chamber, 17- temperature sensor；
2- condenser, 21- cooling water outlet pipe, 22- cooling water inlet pipe, 23- gaseous refrigerant import, 24- refrigerant
Bypass outlet, 25- liquid refrigerant outlet；
3- cooling line system, 31- cooling line, the first pipeline of 311-, the second pipeline of 312-, 313- third pipeline,
The 4th pipeline of 314-, 32- pump installation, the first valve of 33-, 34- pressure-regulating device, the second valve of 35-, 36- device for drying and filtering,
37- third valve；
4- controller；
5- economizer, 51- economizer second outlet, 52- economizer first entrance, 53- economizer second entrance, 54- warp
Ji device first outlet；
6- evaporator, 61- chilled water water inlet pipe, 62- chilled water outlet pipe, 63- liquid refrigerant import, 64- gaseous state system
Cryogen outlet.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.Although for example,
Following embodiments is illustrated in conjunction with magnetic suspension water cooler, and still, this is not restrictive, of the invention skill
Art scheme is equally applicable to other kinds of air conditioner, equally faces low-pressure ratio operation problem for example, by using scroll compressor
Air conditioner etc., the change of this application is without departing from the principle and scope of the present invention.
It should be noted that in the description of the present invention, the direction of the instructions such as term "inner", "outside" or the art of positional relationship
Language is direction based on the figure or positional relationship, this is intended merely to facilitate description, rather than is filled described in indication or suggestion
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, it is not understood to indicate or imply
Relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.To those skilled in the art, above-mentioned term can be understood in the present invention as the case may be
In concrete meaning.
In order to solve the problems caused by air conditioner is because of compressor " feed flow is insufficient " in the prior art, present embodiments provide
A kind of air conditioner is to solve the above problems, and below in conjunction with magnetic suspension water cooler, the present invention is described in detail.
With reference first to Fig. 1 to Fig. 3, air conditioner of the invention is described.Wherein, Fig. 1 is in the embodiment of the present invention
A kind of partial structural diagram of magnetic suspension water cooler；Fig. 2 is the part of another water cooler in the embodiment of the present invention
Structural schematic diagram；Fig. 3 is the structural schematic diagram of one of embodiment of the present invention magnetic suspension compressor.As shown in Figure 1 to Figure 3,
Magnetic suspension water cooler mainly includes magnetic suspension compressor 1, condenser 2, controller 4 and magnetic suspension compressor 1 is arranged in
The cooling line system between entrance 13 and condenser 2 is cooled down, some refrigerant in condenser 2 is flowed through cooling line system 3
In to the cooling entrance 13 and then inflow magnetic suspension compressor 1 of magnetic suspension compressor 1；Cooling line system 3 includes cooling line
31 and the pump installation 32 that is arranged on cooling line 31, pump installation 32 connect with controller 4, controller 4 is configured as according to magnetic
The start and stop of the pressure ratio control pump installation 32 of suspension compressor 1.The controller when the pressure ratio of magnetic suspension compressor 1 is lower than given threshold
4 control pump installations 32 start, and when the pressure ratio of magnetic suspension compressor 1 is greater than or equal to given threshold, controller 4 controls pump installation
32 stop working or in stop working state.Pass through the cooling between condenser and the cooling entrance of magnetic suspension compressor
Pump installation is set on pipeline, and controls whether pump installation device starts according to the pressure ratio of magnetic suspension compressor, when magnetic suspension is compressed
When the pressure ratio of machine is lower than given threshold, control pump installation device starting is so that the refrigerant in condenser can flow into magnetic suspension pressure
In the compression chamber of contracting machine, to guarantee that the feed flow of compressor is sufficient, while also can compressor because of motor and frequency converter temperature mistake
It is high and the problem of cause compressor to stop working, to guarantee that magnetic suspension water cooler can work normally under full working scope.
It should be noted that not for device the present embodiment in magnetic suspension air conditioner well known to those skilled in the art
It is described in detail, in order to highlight purport of the invention.For example, the present embodiment does not carry out the devices such as evaporator and economizer
Description.
It should be noted that controller described in the present invention can be the controller of air conditioner, or the control added
The controller of device or intelligent pump itself processed, the invention is not limited in this regard.
It should be noted that pump installation described in the present invention can be refrigerant booster pump, being also possible to other can expire
The pump installation that foot is pressurized the refrigerant in cooling line.Given threshold described in the present invention refers to that air conditioner can be normal
The extreme pressure ratio of operation, when the concrete application conditions difference of air conditioner, its extreme pressure ratio may be different, at this point, can basis
Its specific use condition adjusts given threshold.For example, can be set given threshold to for magnetic suspension water cooler
1.5, at this point, when the pressure ratio of magnetic suspension compressor is greater than 1.5, pump installation does not start, when the pressure of magnetic suspension compressor
Pump installation starts when than being lower than 1.5.
Continuing with referring to Fig. 1, magnetic suspension water cooler provided in this embodiment further includes for measuring magnetic suspension compressor 1
Exhaust outlet 11 air pressure the first manograph 14 and the air entry 12 for measuring magnetic suspension compressor 1 air pressure second survey
Depressor 15；Controller 4 is connect with the first manograph 14 and the second manograph 15 respectively, and is configured as with the first manograph 14
Measured value and the second manograph 15 measured value pressure ratio of the ratio as magnetic suspension compressor 1.Specifically, manograph can be with
It, being capable of the air inlet of accurately measure magnetic suspension compressor and the pressure of exhaust outlet for manometer.Certainly, manograph
Can for pressure sensor or other can realize and the air inlet of magnetic suspension compressor and the pressure of exhaust outlet measured
Device.
Refer to Fig. 2, in magnetic suspension water cooler provided in this embodiment, cooling line 31 includes first be arranged in parallel
Pipeline 311 and the second pipeline 312, the first pipeline 311 and the second pipeline 312 connect with the cooling entrance 13 of magnetic suspension compressor 1
It connects, wherein pump installation 32 is arranged on the first pipeline 311.So set, making system of the pump installation when not starting in condenser
Cryogen mainly passes through the second pipeline and flows to magnetic suspension compressor, guarantees that refrigerant when pump installation does not start in cooling line can
Swimmingly flow to magnetic suspension compressor.Further, be provided with the first valve 33 on the first pipeline 311, the first valve 33 with
Controller 4 connects, and controller 4 is also configured to control whether the first valve 33 is opened according to the start and stop situation of pump installation 32,
In, it opens when 32 startup control device 4 of pump installation controls the first valve 33, is controlled when pump installation 32 is in stop working state
Device 4 controls the first valve 33 closure.So set, pump installation when not starting, can avoid pump installation from existing refrigerant completely
The influence of flowing in cooling line.
Continuing with referring to fig. 2, in some cases, it is undesirable to which refrigerant flows through cooling line system, for example, in air conditioner
In the presence of the possibility for needing refrigerant to be not passed through cooling line system when maintenance.Based on the above issues, cooling line 31 further includes
Three pipelines 313, the first pipeline 311 and the second pipeline 312 are connected by the cooling entrance of third pipeline 313 and magnetic suspension compressor
It connects, the second valve 35 is provided on the third pipeline.So set, being advantageously implemented cooling line system and magnetic suspension compression
The cooling entrance of machine 1 connects, moreover, the second valve 35 of setting can not need to pass through when refrigerant flows in cooling line
Closing the second valve can be realized.
Continuing with referring to fig. 2, in magnetic suspension water cooler provided in this embodiment, pressure tune is additionally provided on the first pipeline
Regulating device 34, to adjust the amount for flowing back into the refrigerant in magnetic suspension compressor 1 through the first pipeline 311, so that air conditioner
It is run with suitable pressure ratio.Specifically, pressure-regulating device 34 is easy real for that can be pressure-regulating valve using pressure-regulating valve
Now and make the structure of cooling line system relatively simple.Certainly, other can realize the dress to refrigerant pressure in cooling line
It sets and is also applied for the present invention, such as throttling can be added by the way of the local caliber for changing the first pipeline or in pipeline
The mode of orifice plate adjusts the flow of refrigerant, in this regard made any change basic principle all of the invention without change,
Therefore it will fall within the scope of protection of the present invention.
Continuing with referring to fig. 2, cooling line system 3 further includes the device for drying and filtering 36 being arranged on cooling line 31.It is dry
Dry filter 36 can guarantee that there is no moisture and solid impurities in the refrigerant in cooling line, to guarantee compressor because of moisture
And solid impurity and cause to damage, to improve the service life of air conditioner.Further, in order to guarantee device for drying and filtering 36
Effect reaches most preferably, the first valve 33 and the second valve that should be disposed on pump installation 32, pressure tune device 34 and pipeline
It is " later " described herein after 35, refer to that refrigerant during flowing through cooling line system, should first flow through pump installation
32, after pressure tune device 34 and the first valve 33 and the second valve 35, device for drying and filtering 36 is passed through.
Fig. 3 is referred to, cooling line 31 further includes the 4th pipeline 314 being arranged in magnetic suspension compressor 1, the 4th pipeline
314 both ends are connect with the compression chamber 16 of the cooling entrance 13 of magnetic suspension compressor 1 and magnetic suspension compressor 1 respectively, refrigerant
The 4th pipeline 314 is flowed through to cool down the motor 14 and electronic device 15 of magnetic suspension compressor 1.Specifically, can use will
4th pipeline 314, which is coiled in, needs cooling motor 14 and 15 surface of electronic device or neighbouring mode, so that refrigerant stream
Through the temperature that can fully reduce motor 14 and electronic device 15 when four pipelines 314.Reducing motor 14 and electronic device
The temperature in compressor is made to decrease while 15 temperature, this pressure for advantageously allowing compressor decreases, in turn
Under conditions of compressor external pressure is constant, the refrigerant in the 4th pipeline is more readily flowed into compressor.
When the motor of magnetic suspension compressor and electronic device are cooled down, being typically required is made by pipe-line system
It obtains some refrigerant in condenser and flows back into compressor to maintain the pressure ratio of magnetic suspension compressor, and when magnetic suspension compressor
When motor and electronic device do not need to be cooled down, magnetic suspension compressor is not necessarily to tie up through the refrigerant of cooling inlet return
Hold the pressure ratio of magnetic suspension compressor.Based on this case, electronic device includes frequency converter 151, is provided with and is used on frequency converter 151
The temperature sensor 17 of its temperature is measured, third valve 37, third valve 37 and temperature sensor are provided on the 4th pipeline 314
17 connect with compressor controller 10 respectively, and compressor controller 10 is configured as being higher than or waiting when the temperature of frequency converter 151
Third valve 37 is controlled when set temperature to open.In the present embodiment, magnetic suspension compressor is lower than in the temperature of frequency converter and sets
Control third valve is closed when determining temperature, and refrigerant is not necessarily to pass through in cooling inlet return to magnetic suspension compressor, magnetic suspension pressure
The pressure ratio of contracting machine can also be higher than given threshold, and pump installation is without starting；Magnetic suspension compressor be higher than in the temperature of frequency converter or
Person controls third valve opening when being equal to set temperature, controls the start and stop of pump installation according to the pressure ratio of magnetic suspension compressor at this time.
Fig. 4 is the structural schematic diagram of one of embodiment of the present invention magnetic suspension water cooler.Magnetic suspension shown in Fig. 4
Under scene of the water cooler for that must run whole year, such as communication data center, aluminium industry related factories etc. require chilled water to go out
The higher application scenarios of coolant-temperature gage normally communicate and produce to maintain, water cooler whole year is needed to run.For the ease of aobvious
Show, in Fig. 4, except the cooling in the cooling line system being connected between condenser and the cooling entrance of magnetic suspension compressor 1
Outside pipeline, the pipeline that remaining refrigerant flows through is not marked, in addition to the valve in cooling line system, what remaining refrigerant flowed through
Each valve on pipeline, the valve on magnetic suspension compressor, the valve on valve and evaporator on condenser do not mark.For
Convenient for explaining to the working principle of the invention, the present embodiment will combine Fig. 4 to the refrigeration of the magnetic suspension sky water cooler
Process is described.
The process of refrigerastion of magnetic suspension water cooler is as follows: magnetic suspension compressor 1 compresses its internal refrigerant, makes
High temperature and pressure gaseous refrigerant be discharged by the exhaust outlet 11 of magnetic suspension compressor and by the gaseous refrigerant of condenser 2 into
Mouthfuls 23 enter in condensers 2, and in condenser 2 heat release to form liquid refrigerant, wherein refrigerant is released in condenser
Heat is cooled water absorption so that the temperature of 21 outflow water of cooling water outlet pipe is higher than the inflow condenser of cooling water inlet pipe 22
The temperature of water.Liquid refrigerant is flowed out by liquid refrigerant outlet 25 and is divided into after dry filter two-way, this two-way refrigeration
Agent exchanges heat in economizer 5, wherein entering the heat release in economizer 5 of economizer 5 by economizer first entrance 52 all the way
After be changed into low temperature liquid refrigerant and flowed out by economizer first outlet 54, another way passes through economizer second entrance 53 and enters
Flow out after economizer 5 absorbs heat in economizer 5 and by economizer second outlet 51 inside for returning to magnetic suspension compressor 1 in turn.
The low temperature liquid refrigerant flowed out by economizer first outlet 54 enters evaporator by the liquid refrigerant import 63 of evaporator 6
Become high temperature liquid refrigerant after 6 inside heat absorptions and by it is characterized in that 64 outflow of gaseous refrigerant outlet, wherein refrigerant exists
The heat provided by chilled water is absorbed in evaporator so that cooling water temperature, so that the temperature of the water of chilled water outlet pipe 62
Lower than the temperature of the water of chilled water water inlet pipe 61.The high temperature liquid refrigerant of 64 outflow of gaseous refrigerant outlet of evaporator is through magnetic
Suspension compressor air suction mouth enters inside compressor, completes process of refrigerastion.
Incorporated by reference to Fig. 3 and Fig. 4, the process of refrigerastion of magnetic suspension water cooler further include: be higher than when the temperature of frequency converter 151 or
When equal to set temperature, the compressor controller 10 of magnetic suspension compressor 1 controls third valve 37 and opens, when pressure ratio is higher than setting
Even if pump installation does not start when threshold value, cooling can also be passed through by the refrigerant that the refrigerant bypass outlet 24 of condenser 2 flows out
Entrance enters cooling line to flow into the compression chamber of magnetic suspension compressor, in the motor 14 and electronics device to magnetic suspension compressor 1
While part 15 is cooled down, feed flow can be carried out for magnetic suspension compressor 1 to guarantee its pressure ratio；When pressure ratio is below or equal to
Pump installation starting is controlled when given threshold, is made refrigerant pass through cooling entrance 13 by the pressurization of pump installation and is entered the 4th
Pipeline 314 to flow into the compression chamber 16 of magnetic suspension compressor 1, to magnetic suspension compressor motor 14 and electronic device 15 carry out
While cooling, feed flow can be carried out for magnetic suspension compressor 1 to guarantee its pressure ratio.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of air conditioner, including compressor, condenser and cooling entrance and the condenser that the compressor is arranged in
Between cooling line system, some refrigerant in the condenser flow to the compressor through the cooling line system
Cooling entrance flows into the compressor in turn；
It is characterized in that, the air conditioner further includes controller, the cooling line system includes cooling line and is arranged in institute
The pump installation on cooling line is stated, the pump installation is connect with the controller, and the controller is configured as according to the pressure
The pressure ratio of contracting machine controls the start and stop of the pump installation；
When the pressure ratio of the compressor is lower than given threshold, the controller controls the pump installation starting, when the compressor
Pressure ratio when being greater than or equal to the given threshold controller control the pump installation and stop working.
2. air conditioner according to claim 1, which is characterized in that the air conditioner further includes for measuring the compressor
Exhaust outlet air pressure the first manograph and the air entry for measuring the compressor air pressure the second manograph；
The controller is connect with first manograph and second manograph respectively, and is configured as with described first
Pressure ratio of the ratio of the measured value of the measured value of manograph and second manograph as the compressor.
3. air conditioner according to claim 1, which is characterized in that the cooling line includes the first pipeline being arranged in parallel
With the second pipeline, first pipeline and second pipeline are connect with the cooling entrance of the compressor, wherein the pump
Device is arranged on first pipeline.
4. air conditioner according to claim 3, which is characterized in that the first valve is provided on first pipeline, it is described
First valve is connect with the controller, and the controller is also configured to first according to the start-up and shut-down control of the pump installation
Whether valve is opened, wherein when pump installation starting, the controller controls first valve opening, when the pump fills
It sets controller when stopping working and controls the first valve closure.
5. air conditioner according to claim 4, which is characterized in that be additionally provided with pressure on first pipeline and adjust dress
It sets.
6. air conditioner according to claim 5, which is characterized in that the pressure-regulating device is pressure-regulating valve.
7. air conditioner according to claim 3, which is characterized in that the cooling line further includes third pipeline, and described
One pipeline and second pipeline are connect by the third pipeline with the cooling entrance of the compressor；
The second valve and device for drying and filtering are provided on the third pipeline.
8. air conditioner according to claim 7, which is characterized in that the cooling line further includes being arranged in the compressor
The 4th interior pipeline, the both ends of the 4th pipeline compression chamber with the cooling entrance of the compressor and the compressor respectively
Connection, cools down the motor and electronic device of the compressor when refrigerant flows through four pipeline.
9. air conditioner according to claim 8, which is characterized in that the electronic device includes frequency converter, the frequency converter
On be provided with the temperature sensor for measuring its temperature, be provided with third valve, the third valve and institute on the 4th pipeline
It states temperature sensor to connect with compressor controller respectively, the compressor controller is configured as the temperature according to the frequency converter
Degree controls the unlatching and closure of the third valve, wherein when the temperature of the frequency converter is higher than set temperature, the compression
Machine controller controls the third valve opening.
10. air conditioner according to claim 9, which is characterized in that the compressor is magnetic suspension compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110160277A (en) * | 2019-05-09 | 2019-08-23 | 广东美的暖通设备有限公司 | The control method of water cooler and water cooler |
| CN112344510A (en) * | 2019-08-07 | 2021-02-09 | 青岛海尔空调电子有限公司 | Compressor cooling control method for air conditioning unit |
| CN112747391A (en) * | 2019-10-29 | 2021-05-04 | 青岛海尔空调电子有限公司 | Air conditioning unit and compressor cooling control method thereof |
| WO2021103476A1 (en) * | 2019-11-29 | 2021-06-03 | 青岛海尔空调电子有限公司 | Compressor cooling device of air conditioner and control method thereof |
| CN113324312A (en) * | 2020-02-28 | 2021-08-31 | 青岛海尔空调电子有限公司 | Control method of air conditioning unit and air conditioning unit |
| CN117134037A (en) * | 2023-08-28 | 2023-11-28 | 无锡柯诺威新能源科技有限公司 | Battery thermal management system and compressor motor temperature adjusting method |
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