CN109028486A - Refrigerant cooling device and its control method and air-conditioning system - Google Patents
Refrigerant cooling device and its control method and air-conditioning system Download PDFInfo
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- CN109028486A CN109028486A CN201810637602.6A CN201810637602A CN109028486A CN 109028486 A CN109028486 A CN 109028486A CN 201810637602 A CN201810637602 A CN 201810637602A CN 109028486 A CN109028486 A CN 109028486A
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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
- F24F11/62—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
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Fuzzy Systems (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of refrigerant cooling device and its control method and air-conditioning system, described device includes: gas-liquid separator, and the gas outlet of gas-liquid separator is connected with the intermediate air entry of compressor；Refrigerating module, the liquid outlet of the entrance and gas-liquid separator of refrigerating module and evaporator are respectively connected with, the outlet of refrigerating module and the entrance of gas-liquid separator and condenser are respectively connected with, refrigerating module corresponds to heater element setting, cools down for the refrigerant by exporting out from the liquid of gas-liquid separator to heater element.The entrance of the refrigerating module of the device is pure liquid cooling matchmaker, reduce refrigerant flow pressure drop, increase the contact area of liquid refrigerants and coldplate, keep the cooling effect of refrigerating module more preferable, and when refrigerant needs to be divided into multiple channels and flows, its shunting is relatively simple, and the shunting difficult problem of biphase gas and liquid flow is substantially not present, and has very big advantage when heating element is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of refrigerant cooling device, a kind of air-conditioning system, a kind of refrigerant
The control method of cooling device and a kind of non-transitorycomputer readable storage medium.
Background technique
For big-power transducer, the critical components such as modules such as inversion and rectification of frequency converter can generate largely in use
Heat needs the effectively cooling steady operation to ensure frequency converter.
In the related technology, be using cooling water circulation the heater element of frequency converter is cooled down, but which but
Need additional water pump, air-cooled radiator etc. to cooling water temperature, this can greatly increase the volume and cost of frequency convertor system.And
With frequency converter IGBT (Insulated Gate Bipolar Transisto, insulated gate bipolar transistor) module it is small
Type, heat generation density greatly improve, and the heat-sinking capability of water-cooled radiator is difficult to ensure.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of refrigerant cooling device, and the entrance of the refrigerating module of the device is pure liquid cooling matchmaker, reduces refrigerant
Flow pressure drop increases the contact area of liquid refrigerants and coldplate, keeps the cooling effect of refrigerating module more preferable, and in refrigerant
When needing to be divided into the flowing of multiple channels, shunting is relatively simple, and the shunting difficult problem of biphase gas and liquid flow is substantially not present, is sending out
There is very big advantage when hot component is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form.
Second object of the present invention is to propose a kind of air-conditioning system.
Third object of the present invention is to propose a kind of control method of refrigerant cooling device.
Fourth object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of refrigerant cooling device, comprising: gas-liquid point
From device, the gas outlet of the gas-liquid separator is connected with the intermediate air entry of compressor；Refrigerating module, the refrigerating module enter
Liquid outlet and evaporator of the mouth with the gas-liquid separator are respectively connected with, the outlet of the refrigerating module and the gas-liquid separator
Entrance and condenser be respectively connected with, the refrigerating module corresponds to heater element setting, for by from the gas-liquid separator
The liquid refrigerant that exports out the heater element is cooled down.
Refrigerant cooling device according to an embodiment of the present invention, the liquid outlet and steaming of the entrance and gas-liquid separator of refrigerating module
Hair device is respectively connected with, and the entrance of refrigerating module is pure liquid cooling matchmaker, is reduced refrigerant flow pressure drop, is increased liquid refrigerants and cooling
The contact area of plate keeps the cooling effect of refrigerating module more preferable, and when refrigerant needs to be divided into multiple channels and flows, shunts
It is relatively simple, the shunting difficult problem of biphase gas and liquid flow is substantially not present, heating element is more, refrigerating module is larger, more
A refrigerating module has very big advantage when connecting with parallel form.
In addition, refrigerant cooling device according to the above embodiment of the present invention can also have the following additional technical features:
According to one embodiment of present invention, the refrigerating module includes coldplate, one end of the coldplate with it is described
The entrance of refrigerating module is connected, and the other end of the coldplate is connected with the outlet of the refrigerating module, and the heater element is set
It sets on the coldplate.
According to one embodiment of present invention, the refrigerating module further include: cooling pump, the entrance of the cooling pump and institute
The entrance for stating refrigerating module is connected, and the outlet of the cooling pump is connected with one end of the coldplate；The refrigerant cooling device
Further include: control module, for controlling the cooling pump.
According to one embodiment of present invention, the refrigerant cooling device further include: module is obtained, for obtaining the hair
Thermal element/coldplate maximum temperature, wherein the control module is also used to according to the maximum temperature to the cooling
Pump is controlled.
According to one embodiment of present invention, the control module is specifically used for, and judges whether the maximum temperature is greater than
First preset temperature；If the maximum temperature greater than first preset temperature, controls the cooling pump unlatching or will
The current operation frequency of the cooling pump tunes up；If the maximum temperature is less than or equal to first preset temperature, sentence
Whether the maximum temperature of breaking is less than the second preset temperature；It, will if the maximum temperature is less than second preset temperature
The current operation frequency of the cooling pump is turned or is controlled the cooling pump down and closes；If the maximum temperature is less than or equal to institute
It states the first preset temperature and is greater than or equal to second preset temperature, then control the cooling pump and keep the current status unchanged.
According to one embodiment of present invention, first preset temperature is according to the normal working temperature of the heater element
Determine, second preset temperature when not occurring condensation according to the coldplate corresponding temperature determine.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of air-conditioning system, including the present invention first
Refrigerant cooling device described in aspect embodiment.
The air-conditioning system of the embodiment of the present invention, by above-mentioned refrigerant cooling device, the entrance of refrigerating module is pure liquid cooling
Matchmaker reduces refrigerant flow pressure drop, increases the contact area of liquid refrigerants and coldplate, makes the cooling effect of refrigerating module more
It is good and relatively simple shunting when refrigerant needs to be divided into multiple channels and flows, the shunting of biphase gas and liquid flow is substantially not present
Difficult problem has very big excellent when heating element is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form
Gesture.
In order to achieve the above objectives, third aspect present invention embodiment proposes a kind of control method of refrigerant cooling device,
The refrigerant cooling device includes gas-liquid separator and refrigerating module, the centre of the gas outlet and compressor of the gas-liquid separator
Air entry is connected, and liquid outlet and evaporator of the entrance of the refrigerating module with the gas-liquid separator are respectively connected with, described cold
But the outlet of module and the entrance and condenser of the gas-liquid separator are respectively connected with, and the refrigerating module corresponds to heater element and sets
It sets, the heater element is cooled down for the refrigerant by exporting out from the liquid of the gas-liquid separator, the cooling
Module includes coldplate and cooling pump, and the entrance of the cooling pump is connected with the entrance of the refrigerating module, the cooling pump
Outlet is connected with one end of the coldplate, and the other end of the coldplate is connected with the outlet of the refrigerating module, the control
Method processed is the following steps are included: obtain the heater element/coldplate maximum temperature；According to the maximum temperature to institute
Cooling pump is stated to be controlled.
The entrance of the control method of refrigerant cooling device according to an embodiment of the present invention, refrigerating module is pure liquid cooling matchmaker, is subtracted
Small refrigerant flow pressure drop, increases the contact area of liquid refrigerants and coldplate, keeps the cooling effect of refrigerating module more preferable, and
Relatively simple shunting when refrigerant needs to be divided into multiple channels and flows, the shunting that biphase gas and liquid flow is substantially not present is difficult
Problem has very big advantage when heating element is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form,
And it can solve the condensation problem of refrigerant device.
In addition, the control method of refrigerant cooling device according to the above embodiment of the present invention can also have it is following additional
Technical characteristic:
It is according to one embodiment of present invention, described that the cooling pump is controlled according to the maximum temperature, comprising:
Judge whether the maximum temperature is greater than the first preset temperature；If the maximum temperature is greater than first preset temperature,
The cooling pump is controlled to open or tune up the current operation frequency of the cooling pump；If the maximum temperature is less than or waits
In first preset temperature, then judge the maximum temperature whether less than the second preset temperature；If the maximum temperature is small
In second preset temperature, then turns or control the current operation frequency of the cooling pump down the cooling pump and close；If
The maximum temperature is less than or equal to first preset temperature and is greater than or equal to second preset temperature, then described in control
Cooling pump is kept the current status unchanged.
According to one embodiment of present invention, first preset temperature is according to the normal working temperature of the heater element
Determine, second preset temperature when not occurring condensation according to the coldplate corresponding temperature determine.
In order to achieve the above objectives, fourth aspect present invention embodiment proposes a kind of non-transitory computer-readable storage medium
Matter is stored thereon with computer program, realizes when which is executed by processor cold described in third aspect present invention embodiment
The control method of matchmaker's cooling device.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, processor execute the computer being stored thereon
When program, heater element/coldplate maximum temperature is obtained, and cooling pump is controlled according to maximum temperature, it not only can be with
Guarantee the cooling effect of heater element, and can solve the condensation problem of refrigerant device.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is the block diagram of refrigerant cooling device according to an embodiment of the invention；
Fig. 2 is the block diagram of refrigerant cooling device in accordance with another embodiment of the present invention；
Fig. 3 is the working principle diagram of refrigerant cooling device according to an embodiment of the invention；
Fig. 4 is the flow chart of the control method of refrigerant cooling device according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
It is cold to describe the refrigerant cooling device proposed according to embodiments of the present invention, air-conditioning system, refrigerant with reference to the accompanying drawings
But the control method and non-transitorycomputer readable storage medium of device.
Fig. 1 is the block diagram of refrigerant cooling device according to an embodiment of the invention.As shown in Figure 1, the device
It include: gas-liquid separator (economizer) 10 and refrigerating module 20.
Wherein, the gas outlet 11 of gas-liquid separator 10 is connected with the intermediate air entry of compressor 30.Refrigerating module 20 enters
The liquid of mouth and gas-liquid separator 10 outlet 12 and evaporator 40 are respectively connected with, outlet and the gas-liquid separator 10 of refrigerating module 20
Entrance 13 and condenser 50 are respectively connected with, and the corresponding heater element 60 of refrigerating module 20 is arranged, for by from gas-liquid separator 10
Liquid outlet 12 come out refrigerant heater element 60 is cooled down.
Further, according to one embodiment of present invention, as shown in Figure 1, refrigerating module 20 may include coldplate 21,
One end of coldplate 21 is connected with the entrance of refrigerating module 20, and the other end of coldplate 21 is connected with the outlet of refrigerating module 20,
Heater element 60 is arranged on coldplate 21.
Specifically, as shown in Figure 1, air-conditioning system generally comprises: indoor heat exchanger, outdoor heat exchanger, compressor 30 and section
Device is flowed, when work is in refrigeration mode, indoor heat exchanger makees evaporator 40, and indoor heat exchanger makees condenser 50, compressor 30
The high pressure and high temperature refrigerant of outlet is condensed into high-temperature liquid state refrigerant through condenser 50, after the throttling of first throttling device 71, becomes
Gas-liquid two-phase refrigerant is pressed, is separated in gas-liquid separator 10.Gas phase returns to the intermediate suction end of compressor 30, and liquid phase is through the second throttling
After device 72 throttles again, it was evaporated to hot refrigerant into evaporator 40, returns to the suction end of compressor 30.
Since there is no endothermic effects for gaseous coolant itself, a large amount of flowing spaces are occupied in refrigerant passage, are increased cold
Matchmaker's flow pressure drop；On the other hand, a large amount of gaseous coolants in refrigerant passage reduce the contact area of liquid refrigerants and coldplate,
Reduce the heat-sinking capability of coldplate.For this purpose, in an embodiment of the present invention, the import of coldplate 21 connects in gas-liquid separator 10
Liquid outlet, the outlet of coldplate 21 connects the refrigerant inlet in gas-liquid separator 10.The liquid refrigerants that 10 liquid of gas-liquid separator goes out
On the one hand after second throttling device 72 throttles again, it was evaporated to hot refrigerant into evaporator 40, returns to compressor 30
On the other hand suction end enters coldplate 21 and carries out decalescence, the outlet of refrigerating module 20 is gas-liquid two-phase, returns to gas-liquid point
Gas-liquid separation is re-started from device 10.
The entrance of the refrigerating module of the device is pure liquid cooling matchmaker as a result, reduces refrigerant flow pressure drop, it is cold to increase liquid
The contact area of matchmaker and coldplate keep the cooling effect of refrigerating module more preferable, and flow needing to be divided into multiple channels in refrigerant
When, it shunts relatively simple, the shunting difficult problem of biphase gas and liquid flow is substantially not present, heating element is more, cooling mould
There is very big advantage when block is larger, multiple refrigerating modules are connected with parallel form.
According to another embodiment of the invention, cooling as shown in Fig. 2, refrigerating module 20 can also include: cooling pump 22
The entrance of pump 22 is connected with the entrance of refrigerating module 20, and the outlet of cooling pump 22 is connected with one end of coldplate 21.Refrigerant is cooling
Device can also include: control module (not specifically illustrated in figure), for controlling cooling pump 22.
Specifically, as shown in Fig. 2, 10 liquid of gas-liquid separator go out liquid refrigerants on the one hand through second throttling device 72 again
After throttling, it was evaporated to hot refrigerant into evaporator 40, returns to the suction end of compressor 30；On the other hand add through cooling pump 22
Coldplate 21 is flowed into after pressure and carries out decalescence, and the refrigerant of the gas-liquid two-phase of the outlet of coldplate 21 outflow returns to gas-liquid separator
Gas-liquid separation is re-started in 10, is so recycled.Meanwhile control module in real time controls the operating frequency of cooling pump, with
While guaranteeing cooling effect, coldplate is avoided dew condensation phenomenon occur.
Describe how control module controls cooling pump 22 below with reference to specific embodiment.
According to one embodiment of present invention, above-mentioned refrigerant cooling device can also include: acquisition module.Obtain module
For obtaining heater element/coldplate maximum temperature Tg, wherein control module is also used to according to maximum temperature Tg to cooling pump
22 are controlled.
It specifically, as shown in Fig. 2, can be by temperature measuring equipment 211 being arranged on coldplate 21 to obtain coldplate most
High-temperature Tg, temperature measuring equipment 211 can be thermocouple, thermal resistance or pressure sensor etc..The generally included sense of heater element 60
Warm device can be obtained the maximum temperature Tg of heater element without additionally increasing warm temperature measuring equipment.
Further, according to one embodiment of present invention, control module is specifically used for, and judges whether maximum temperature Tg is big
In the first preset temperature A；If maximum temperature Tg is greater than the first preset temperature A, controls cooling pump 22 and open or will cool down
The current operation frequency of pump 22 tunes up.If maximum temperature Tg is less than or equal to the first preset temperature A, maximum temperature Tg is judged
Whether less than the second preset temperature B.If maximum temperature Tg is less than the second preset temperature B, by the current operation frequency of cooling pump
Cooling pump closing is turned or controlled to rate down.If maximum temperature Tg is less than or equal to the first preset temperature A and is greater than or equal to second
Preset temperature B then controls cooling pump and keeps the current status unchanged.
Wherein, the first preset temperature A can be determined according to the normal working temperature of heater element 60, general slightly below to generate heat
The normal working temperature of element 60；Corresponding temperature when condensation can not occur according to coldplate 21 and determine by second preset temperature B,
Second preset temperature B is generally higher than the current environmental temperature of heater element.And first preset temperature A be greater than the second preset temperature B.
Specifically, as shown in figure 3, obtaining module obtains maximum temperature Tg, then control module judges whether there is Tg >
The current operation frequency of cooling pump 22 if it is, control cooling pump 22 is opened, or is tuned up predeterminated frequency, to provide liquid by A
Refrigerant enhances the heat-sinking capability of coldplate 21 to coldplate 21, which can be preset (S1- according to the actual situation
S3).And if Tg≤A, control module further determines whether that there are Tg < B, if it is, by the current operation of cooling pump
Frequency turns predeterminated frequency down or control cooling pump 22 is closed, and weakens the heat-sinking capability of coldplate, avoids coldplate that condensation occurs existing
As (S4-S5).And if B≤Tg≤A, it controls cooling pump 22 and keeps the current status unchanged (S6).Can both it guarantee as a result, cold
But the cooling capacity of plate, and condensation can occur to avoid coldplate.
In conclusion refrigerant cooling device according to an embodiment of the present invention, the entrance of refrigerating module and gas-liquid separator
Liquid outlet and evaporator are respectively connected with, and the entrance of refrigerating module is pure liquid cooling matchmaker, are reduced refrigerant flow pressure drop, are increased liquid
The contact area of refrigerant and coldplate keeps the cooling effect of refrigerating module more preferable, and flows needing to be divided into multiple channels in refrigerant
When dynamic, shunting is relatively simple, and the shunting difficult problem of biphase gas and liquid flow is substantially not present, more, cooling in heating element
There is very big advantage when module is larger, multiple refrigerating modules are connected with parallel form, and control module is according to heater element/cooling
The maximum temperature Tg of plate controls cooling pump 22, can not only guarantee the cooling capacity of coldplate, but also can be to avoid coldplate
Condensation occurs.
In addition, the embodiment of the present invention also proposes a kind of air-conditioning system, including above-mentioned refrigerant cooling device.
The air-conditioning system of the embodiment of the present invention, by above-mentioned refrigerant cooling device, the entrance of refrigerating module is pure liquid cooling
Matchmaker reduces refrigerant flow pressure drop, increases the contact area of liquid refrigerants and coldplate, makes the cooling effect of refrigerating module more
It is good and relatively simple shunting when refrigerant needs to be divided into multiple channels and flows, the shunting of biphase gas and liquid flow is substantially not present
Difficult problem has very big excellent when heating element is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form
Gesture.
Fig. 4 is the flow chart of the control method of refrigerant cooling device according to an embodiment of the invention.As shown in Fig. 2,
Refrigerant cooling device includes gas-liquid separator and refrigerating module, the intermediate air entry phase of the gas outlet and compressor of gas-liquid separator
Even, the outlet of the liquid of the entrance of refrigerating module and gas-liquid separator and evaporator are respectively connected with, the outlet of refrigerating module and gas-liquid point
Entrance and condenser from device are respectively connected with, and refrigerating module corresponds to heater element setting, for passing through the liquid from gas-liquid separator
The refrigerant that outlet comes out cools down heater element, and refrigerating module includes coldplate and cooling pump, the entrance of cooling pump with it is cold
But the entrance of module is connected, and the outlet of cooling pump is connected with one end of coldplate, the other end of coldplate and going out for refrigerating module
Mouth is connected.The control method of refrigerant cooling device the following steps are included:
S10 obtains heater element/coldplate maximum temperature Tg.
S20 controls cooling pump according to maximum temperature Tg.
Further, according to one embodiment of present invention, cooling pump is controlled according to maximum temperature Tg, is can wrap
It includes: judging whether maximum temperature Tg is greater than the first preset temperature A；If maximum temperature Tg is greater than the first preset temperature A, control
Cooling pump opens or tunes up the current operation frequency of cooling pump.If maximum temperature Tg is less than or equal to the first preset temperature
Whether A then judges maximum temperature Tg less than the second preset temperature B.If maximum temperature Tg, will less than the second preset temperature B
Cooling pump closing is turned or controlled to the current operation frequency of cooling pump down.If maximum temperature Tg is less than or equal to the first preset temperature
A and be greater than or equal to the second preset temperature B, then control cooling pump and keep the current status unchanged.
Wherein, the first preset temperature A can be determined according to the normal working temperature of heater element, general member of slightly below generating heat
The normal working temperature of part；Corresponding temperature when condensation can not occur according to coldplate and determine by second preset temperature B, and second is pre-
If temperature B is generally higher than the current environmental temperature of heater element.And first preset temperature A be greater than the second preset temperature B.
It is understood that the control method of the refrigerant cooling device of the embodiment of the present invention and above-mentioned refrigerant cooling device
It is corresponding, for details undisclosed in embodiment of the method, it is referred to above-mentioned Installation practice, is specifically repeated no more.
The entrance of the control method of refrigerant cooling device according to an embodiment of the present invention, refrigerating module is pure liquid cooling matchmaker, is subtracted
Small refrigerant flow pressure drop, increases the contact area of liquid refrigerants and coldplate, keeps the cooling effect of refrigerating module more preferable, and
Relatively simple shunting when refrigerant needs to be divided into multiple channels and flows, the shunting that biphase gas and liquid flow is substantially not present is difficult
Problem has very big advantage when heating element is more, refrigerating module is larger, multiple refrigerating modules are connected with parallel form,
And it can solve the condensation problem of refrigerant device.
The embodiment of the present invention also proposed a kind of non-transitorycomputer readable storage medium, be stored thereon with computer
Program, the program realize the control method of above-mentioned refrigerant cooling device when being executed by processor.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, processor execute the computer being stored thereon
When program, heater element/coldplate maximum temperature is obtained, and cooling pump is controlled according to maximum temperature, it not only can be with
Guarantee the cooling effect of heater element, and can solve the condensation problem of refrigerant device.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In addition, in the description of the present invention, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
"upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " inverse time
The orientation or positional relationship of the instructions such as needle ", " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of refrigerant cooling device characterized by comprising
The gas outlet of gas-liquid separator, the gas-liquid separator is connected with the intermediate air entry of compressor；
Refrigerating module, liquid outlet and evaporator of the entrance of the refrigerating module with the gas-liquid separator are respectively connected with, described
The outlet of refrigerating module and the entrance and condenser of the gas-liquid separator are respectively connected with, and the refrigerating module corresponds to heater element
Setting, cools down the heater element out for the refrigerant by exporting from the liquid of the gas-liquid separator.
2. refrigerant cooling device as described in claim 1, which is characterized in that the refrigerating module includes coldplate, described cold
But one end of plate is connected with the entrance of the refrigerating module, the outlet phase of the other end of the coldplate and the refrigerating module
Even, the heater element is arranged on the coldplate.
3. refrigerant cooling device as claimed in claim 2, which is characterized in that
The refrigerating module further include: cooling pump, the entrance of the cooling pump are connected with the entrance of the refrigerating module, described cold
But the outlet pumped is connected with one end of the coldplate；
The refrigerant cooling device further include: control module, for controlling the cooling pump.
4. refrigerant cooling device as claimed in claim 3, which is characterized in that the refrigerant cooling device further include: obtain mould
Block, for obtaining the heater element/coldplate maximum temperature, wherein the control module is also used to according to
Maximum temperature controls the cooling pump.
5. refrigerant cooling device as claimed in claim 4, which is characterized in that the control module is specifically used for,
Judge whether the maximum temperature is greater than the first preset temperature；
If the maximum temperature is greater than first preset temperature, controls the cooling pump and open or by the cooling pump
Current operation frequency tune up；
If the maximum temperature is less than or equal to first preset temperature, judge the maximum temperature whether less than second
Preset temperature；
If the maximum temperature is less than second preset temperature, the current operation frequency of the cooling pump is turned down or controlled
The cooling pump is made to close；
If the maximum temperature is less than or equal to first preset temperature and is greater than or equal to second preset temperature,
The cooling pump is controlled to keep the current status unchanged.
6. refrigerant cooling device as claimed in claim 5, which is characterized in that first preset temperature is according to the fever member
The normal working temperature of part determines, corresponding temperature is true when according to the coldplate condensation do not occur for second preset temperature
It is fixed.
7. a kind of air-conditioning system, which is characterized in that including refrigerant cooling device such as of any of claims 1-6.
8. a kind of control method of refrigerant cooling device, which is characterized in that the refrigerant cooling device include gas-liquid separator and
Refrigerating module, the gas-liquid separator gas outlet is connected with the intermediate air entry of compressor, the entrance of the refrigerating module and
The liquid outlet of the gas-liquid separator and evaporator are respectively connected with, the outlet of the refrigerating module and entering for the gas-liquid separator
Mouth and condenser are respectively connected with, and the refrigerating module corresponds to heater element setting, for passing through the liquid from the gas-liquid separator
The refrigerant that outlet comes out cools down the heater element, and the refrigerating module includes coldplate and cooling pump, the cooling
The entrance of pump is connected with the entrance of the refrigerating module, and the outlet of the cooling pump is connected with one end of the coldplate, described
The other end of coldplate is connected with the outlet of the refrigerating module, the control method the following steps are included:
Obtain the heater element/coldplate maximum temperature；
The cooling pump is controlled according to the maximum temperature.
9. the control method of refrigerant cooling device as claimed in claim 8, which is characterized in that described according to the maximum temperature
The cooling pump is controlled, comprising:
Judge whether the maximum temperature is greater than the first preset temperature；
If the maximum temperature is greater than first preset temperature, controls the cooling pump and open or by the cooling pump
Current operation frequency tune up；
If the maximum temperature is less than or equal to first preset temperature, judge the maximum temperature whether less than second
Preset temperature；
If the maximum temperature is less than second preset temperature, the current operation frequency of the cooling pump is turned down or controlled
The cooling pump is made to close；
If the maximum temperature is less than or equal to first preset temperature and is greater than or equal to second preset temperature,
The cooling pump is controlled to keep the current status unchanged.
10. the control method of refrigerant cooling device as claimed in claim 9, which is characterized in that the first preset temperature root
It is determined according to the normal working temperature of the heater element, when according to the coldplate condensation do not occur for second preset temperature pair
The temperature answered determines.
11. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program
The control method of the refrigerant cooling device as described in any one of claim 8-10 is realized when being executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637602.6A CN109028486A (en) | 2018-06-20 | 2018-06-20 | Refrigerant cooling device and its control method and air-conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810637602.6A CN109028486A (en) | 2018-06-20 | 2018-06-20 | Refrigerant cooling device and its control method and air-conditioning system |
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| CN110579043A (en) * | 2019-08-01 | 2019-12-17 | 广东工业大学 | Heat pump system capable of regulating non-azeotropic refrigerant and system optimization method |
| CN113776236A (en) * | 2021-08-30 | 2021-12-10 | 珠海格力电器股份有限公司 | Air conditioner, compressor protection method, compressor control system and compressor |
| CN116045385A (en) * | 2023-02-13 | 2023-05-02 | 珠海格力电器股份有限公司 | Refrigerant heat exchange system, air conditioner and heat exchange method of air conditioner |
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Application publication date: 20181218 |