CN209949712U - Composite liquid cooling air supply device - Google Patents
Composite liquid cooling air supply device Download PDFInfo
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- CN209949712U CN209949712U CN201821731572.7U CN201821731572U CN209949712U CN 209949712 U CN209949712 U CN 209949712U CN 201821731572 U CN201821731572 U CN 201821731572U CN 209949712 U CN209949712 U CN 209949712U
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Abstract
The utility model provides a composite liquid cooling air supply device, wherein the liquid cooling source comprises a refrigeration system and a control system; the refrigerating system comprises a water tank circulating device and a refrigerating device; the water tank circulating device comprises a water tank, a water pump and a fine filter; the refrigerating device comprises a plurality of refrigerating branches, each refrigerating branch comprises a heat exchanger, a condenser, a compressor and a fluorine solenoid valve, a liquid cold source provides cooling liquid for the fan coil, and the fan air-cooled fan coil provides cold air with temperature and humidity meeting requirements for loads, so that the composite liquid cooling device combining liquid cooling and air cooling is realized, the liquid supply temperature range is wide, and the refrigerating device is suitable for multiple working conditions.
Description
Technical Field
The utility model relates to a liquid cooling source technical field, in particular to compound liquid cooling air feed device.
Background
The liquid cooling source is a system for providing circulating cooling liquid for the high-power electronic equipment, and the reliable work of the liquid cooling source plays an important role in the normal heat dissipation of the high-power electronic equipment. In order to reduce the volume and weight of the cooling liquid flowing through the pipeline of the electronic equipment, a micro-channel form is generally adopted, so that the requirement on the liquid supply pressure of the liquid cooling source is high. The working process of the existing liquid cooling source cooling liquid system is that a liquid storage tank I supplies liquid to a liquid pump I heat exchanger I liquid supply pipeline valve I electronic equipment I liquid return pipeline valve, finally returns to the liquid storage tank, and the circulation realizes the cooling of the electronic equipment. The liquid cooling and air cooling can not be combined for double cooling, the liquid supply temperature range of the existing market liquid cooling source is narrow, the use working condition is single, the pertinence is strong, and the actual use conditions of different working condition occasions can not be met.
SUMMERY OF THE UTILITY MODEL
The purpose of the present invention is to solve at least one of the technical drawbacks.
For this reason, an object of the utility model is to provide a compound liquid cooling air supply device, the liquid cooling source is low side fan coil unit respectively, high-end fan coil unit, control end fan coil visitor supplies liquid, behind the fan coil of coolant liquid flow, the heat is taken away in the heat exchange, the coolant liquid that the temperature rose returns in the water tank that gets into liquid cold source device host computer, carry out the heat transfer with the refrigerating system in the system, thereby reduce the temperature of coolant liquid, behind the cooling coolant liquid again through circulating pump send to fan coil, thereby take away the heat in the square cabin, the electron rack in for the square cabin provides the cooling air that accords with the humiture requirement.
In order to achieve the above object, an embodiment of an aspect of the present invention provides a composite liquid cooling air supply device, including a liquid cooling source and a fan coil, where the liquid cooling source includes a refrigeration system and a control system;
the refrigerating system comprises a water tank circulating device and a refrigerating device; the water tank circulating device comprises a water tank, a water pump and a fine filter; the refrigerating device comprises a plurality of refrigerating branches, each refrigerating branch comprises a heat exchanger, a condenser, a compressor and a fluorine electromagnetic valve, a liquid outlet of a first coil of the heat exchanger is communicated with an inlet of the compressor, an outlet of the compressor is communicated with an inlet of the condenser, and an outlet of the condenser is communicated with the fluorine electromagnetic valve and is connected to a liquid inlet of the first coil of the heat exchanger through the fluorine electromagnetic valve; the liquid inlet of the second coil of the heat exchanger is communicated with the outlet of the fan coil, the liquid outlet of the second coil of the heat exchanger is communicated with the inlet of the water tank, the outlet of the water tank is communicated with the water pump, the outlet of the water pump is communicated with the fine filter, and the outlet of the fine filter is communicated with the inlet of the fan coil; the control system comprises a PLC (programmable logic controller), wherein the PLC is respectively connected with the fluorine electromagnetic valve of each refrigeration branch, a water tank temperature sensor arranged in the water tank, and a flow sensor and a water electromagnetic valve which are arranged in the fan coil.
Preferably, the fan coil includes a low-end fan coil, a high-end fan coil, a control fan coil, and an SE-end fan coil.
In any of the above aspects, preferably, the low-end fan coil is provided with 3 sets.
In any of the above schemes, preferably, each group of the low-end fan coils includes a second ball valve, a first ball valve and a coil assembly which are sequentially communicated; the liquid outlet end of each group of the coil pipe assemblies is respectively communicated with the inlet of the liquid outlet ball valve, and the outlet of the liquid outlet ball valve is provided with a flow sensor.
In any of the above solutions, it is preferable that the coil assembly includes a coil and second joints disposed at two ends of the coil, and the second joints are connected to the first joints through a hose with a connecting path DN15 mm.
In any of the above schemes, preferably, the control fan coil is provided with 2 groups, and in each group of the control fan coil, the second joint is connected with the first joint through a hose with the connecting drift diameter of DN20 mm.
In any of the above schemes, preferably, the coil pipe is made of a thin-wall copper pipe and efficient copper fins through mechanical expansion.
According to the utility model provides a pair of compound liquid cooling air feed device compares and has following advantage in current liquid cold source at least:
1. the liquid cooling source provides cooling liquid for the fan coil, and the fan air-cooled fan coil provides cold air with temperature and humidity meeting requirements for the load, so that the composite liquid cooling device combining liquid cooling and air cooling is realized, the liquid supply temperature range is wide, and the composite liquid cooling device is suitable for multiple working conditions.
2. The coil of the fan coil is formed by mechanically expanding a high-quality thin-wall copper tube and high-efficiency copper fins, and is matched with a large-air-volume low-noise fan to enhance heat transfer. High static pressure, large air quantity and low noise.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a composite liquid-cooling air supply device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a fan coil in a composite liquid-cooling air supply device according to an embodiment of the present invention;
in the figure:
1. a gas-liquid separator; 2. a plate heat exchanger; 3. a bypass ball valve; 4. a water solenoid valve; 5. a flow sensor; 6. A liquid inlet ball valve; 7. a first joint; 8. a second joint; 9. a first ball valve; 10. a second ball valve; 11. a pressure sensor; 12. a first hose; 13. a second hose; 14. a third hose; 15. a fourth hose; 16. a fine filter; 17. a PLC controller; 18. a temperature sensor; 19. a check valve; 20. a pressure gauge; 21. a water pump; 22. a water tank temperature sensor; 23. a water tank electric heater; 24. a tapping valve; 25. a magnetic float-type level gauge; 26. a fan; 27. a condenser; 28. a bypass valve; 29. a liquid adding pump; 30. a liquid charging valve; 31. an automatic exhaust valve; 33. a differential pressure valve; 34. a condensing pressure regulating valve 35, a liquid reservoir; 36. a fluorine charging valve; 37. drying the filter; 38. a fluorine solenoid valve; 39. a thermostatic expansion valve; 40. a compressor;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, the embodiment of the present invention provides a composite liquid cooling air supply device, which includes a liquid cooling source and a fan coil, wherein the liquid cooling source includes a refrigeration system and a control system; the refrigeration system comprises a water tank circulation device and a refrigeration device. The liquid cooling device works in a mode of combining compressor refrigeration with forced air cooling, and adopts an air-cooled condenser structure.
The water tank circulating device comprises a water tank 32, a water pump 21 and a fine filter 16; the outlet of the water pump 21 is sequentially communicated with a pressure gauge 20 and a check valve 19; the check valve 19 is communicated to the other inlet of the water tank through a bypass valve 28 to avoid overflow of the water tank, the check valve 19 is communicated with the fine filter 16, a temperature sensor 18 is arranged at the inlet end of the inlet filter, the temperature sensor 18 is connected with a PLC (programmable logic controller), and the PLC controls the number of the open valves of the fan coil according to the outlet temperature of the water pump. The water tank is also provided with a water tank temperature sensor 22, a water tank electric heater 23, a liquid discharging valve 24 and a magnetic float type liquid level meter 25; wherein the water tank temperature sensor 22, the water tank electric heater 23 and the magnetic float type liquid level meter 25 are connected with the PLC controller. When the temperature is too low, the PLC controls the water tank electric heater 23 to heat the water tank.
The upper end of the water tank is also provided with a liquid adding pump 29, a liquid adding valve 30 and an automatic exhaust valve 31, and when the pressure in the water tank is overlarge, the automatic exhaust valve 31 is controlled; exhausting is carried out, and when the magnetic float type liquid level meter 25 detects that the liquid level is too low, liquid is added through the liquid adding pump 29 and the liquid adding valve 30.
The refrigerating device comprises a plurality of refrigerating branches, each refrigerating branch comprises a heat exchanger 2, a condenser 27, a compressor 40, a fluorine electromagnetic valve 38 and a gas-liquid separator 1 communicated with the compressor, and the gas-liquid separator 1 is used for carrying out gas-liquid separation on cooling heat output by the heat exchangers.
The liquid outlet of the first coil of the heat exchanger is communicated with the inlet of a compressor 40, the outlet of the compressor 40 is communicated with the inlet of a condenser 27, and the outlet of the condenser 27 is communicated with a fluorine solenoid valve 38 and is connected to the liquid inlet of the first coil of the heat exchanger through the fluorine solenoid valve 38; the liquid inlet of the second coil of the heat exchanger is communicated with the outlet of the fan coil, the liquid outlet of the second coil of the heat exchanger is communicated with the inlet of the water tank, the outlet of the water tank is communicated with the water pump 21, the outlet of the water pump 21 is communicated with the fine filter 16, and the outlet of the fine filter 16 is communicated with the inlet of the fan coil; the control system comprises a PLC (programmable logic controller) 17, wherein the PLC 17 is respectively connected with the fluorine electromagnetic valve 38 of each refrigeration branch, the water tank temperature sensor 22 arranged in the water tank, and the flow sensor 5 and the water electromagnetic valve 4 arranged in the fan coil.
The principle of compressor refrigeration in this embodiment is:
the fan coil absorbs the heat of the heating equipment, the cooling liquid in the fan coil becomes hot and flows into the second coil of the heat exchanger to exchange heat with the first coil of the heat exchanger in the second coil, the cooling liquid in the first coil becomes hot and then enters the gas-liquid separator 1 to be subjected to gas-liquid separation, the liquid cooling liquid enters the compressor 40 after the gas-liquid separation, the compressor 40 compresses the liquid cooling liquid into high-temperature and high-pressure gas, the high-temperature and high-pressure Freon gas is discharged by the compressor 40 and enters the air-cooled condenser 27 to exchange heat with the ambient air, the refrigerant gives off heat and is cooled into low-temperature and high-pressure Freon liquid, the pressure difference valve 33 is connected to the two ends of the air-cooled condenser 27 and is used for adjusting the inlet-outlet pressure difference of the air-cooled condenser 27, and the low-temperature and high-pressure Freon liquid sequentially passes through, A fluorine solenoid valve 38 and a thermostatic expansion valve 39; the heat exchange medium is throttled and depressurized by a thermostatic expansion valve 39 to become a low-temperature Freon gas-liquid two-phase mixture, enters a first coil of a heat exchanger, absorbs heat in an evaporator and returns to a compressor 40 to form reciprocating circulation. And cooling liquid in a second coil of the heat exchanger is cooled and then enters a water tank, and the water tank outputs the cooled cooling liquid through a water pump and then enters a fan coil to absorb heat of the heating equipment for the next time.
As shown in FIG. 2, the fan coils include a low end fan coil, a high end fan coil, a control fan coil, and an SE end fan coil. The outlet of the fan coil is provided with a water electromagnetic valve, the water electromagnetic valve is connected with the inlet of a second coil of the heat exchanger, and two ends of the water electromagnetic valve are communicated with a bypass ball valve in parallel;
the coil of the low-end fan 26 is provided with 3 groups. Each group of the coil pipes of the low-end fan 26 comprises a second ball valve 10, a first ball valve 9 and a coil pipe assembly which are sequentially communicated; the liquid outlet end of each group of the coil pipe assemblies is respectively communicated with the inlet of a liquid outlet ball valve 6, and the outlet of the liquid outlet ball valve 6 is provided with a flow sensor 5. The coil pipe assembly comprises a coil pipe and second joints 8 arranged at two ends of the coil pipe, wherein the second joints 8 are connected with the first joints 7 through connecting drift diameters for first hoses 12. The coil pipes are all made of thin-wall copper tubes and efficient copper fins through mechanical expansion pipes. The first hose had a diameter DN15 mm.
The control fan coil is provided with 2 groups, in each group of control fan 26 coils, the second joint 8 is connected with the first joint 7 through a second hose 13, and the drift diameter of the second hose 13 is DN20 mm. Furthermore, a group of high-end fan coils are arranged, the high-end fan coils adopt a third hose 14, and the drift diameter of the third hose is DN15 mm; a set of fan coil pipes at the SE end is arranged; the SE end fan coil adopts a fourth hose 15, and the fourth hose adopts a hose with the drift diameter DN10 mm.
Forced air cooling heat exchange principle:
the electromagnetic valve of the strong cold water in the liquid cooling device with the ambient temperature less than 0 ℃ is opened, the high-temperature glycol solution coming out of the fan coil enters the strong cold heat exchanger in the liquid cooling device to exchange heat with the outside air through the fan, the cooled glycol is conveyed to the fan coil through the liquid pump, and the requirement of the liquid supply temperature is met by controlling the starting of the fan.
The liquid cooling device has three working conditions
The cooling form of the liquid cooling device is divided into compressor cooling and forced heat exchange. When the ambient temperature is higher than 0 ℃, the compressor refrigerates; and when the ambient temperature is less than or equal to 0 ℃, carrying out forced air cooling.
When the temperature is higher than 40 ℃ and higher than the ambient temperature and higher than 0 ℃, the liquid cooling device starts two groups of fluorine systems to provide glycol solution with the temperature lower than 10 ℃ for the fan coil;
when the temperature is more than 55 ℃ and the ambient temperature is more than 40 ℃, three groups of fluorine systems of the liquid cooling device are simultaneously started to provide glycol solution with the temperature less than 20 ℃ for the fan coil.
When the ambient temperature is less than 0 ℃, the liquid cooling device adopts forced air cooling, and the requirement of the liquid supply temperature is met by switching on and off the fan.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A composite liquid cooling air supply device comprises a liquid cooling source and a fan coil, and is characterized in that the liquid cooling source comprises a refrigeration system and a control system;
the refrigerating system comprises a water tank circulating device and a refrigerating device; the water tank circulating device comprises a water tank, a water pump and a fine filter; the refrigerating device comprises a plurality of refrigerating branches, each refrigerating branch comprises a heat exchanger, a condenser, a compressor and a fluorine electromagnetic valve, a liquid outlet of a first coil of the heat exchanger is communicated with an inlet of the compressor, an outlet of the compressor is communicated with an inlet of the condenser, and an outlet of the condenser is communicated with the fluorine electromagnetic valve and is connected to a liquid inlet of the first coil of the heat exchanger through the fluorine electromagnetic valve; the liquid inlet of the second coil of the heat exchanger is communicated with the outlet of the fan coil, the liquid outlet of the second coil of the heat exchanger is communicated with the inlet of the water tank, the outlet of the water tank is communicated with the water pump, the outlet of the water pump is communicated with the fine filter, and the outlet of the fine filter is communicated with the inlet of the fan coil;
the control system comprises a PLC (programmable logic controller), wherein the PLC is respectively connected with the fluorine electromagnetic valve of each refrigeration branch, a water tank temperature sensor arranged in the water tank, and a flow sensor and a water electromagnetic valve which are arranged in the fan coil.
2. The hybrid liquid-cooled air supply of claim 1, wherein the fan coil comprises a low-end fan coil, a high-end fan coil, a control fan coil, a SE-end fan coil.
3. The hybrid liquid-cooled air supply unit of claim 2, wherein there are 3 sets of the low-side fan coils.
4. The hybrid liquid-cooled air supply apparatus of claim 3, wherein each set of the low-side fan coils comprises a second ball valve, a first ball valve, and a coil assembly in sequential communication; the liquid outlet end of each group of the coil pipe assemblies is respectively communicated with the inlet of the liquid outlet ball valve, and the outlet of the liquid outlet ball valve is provided with a flow sensor.
5. The hybrid liquid-cooled air supply device according to claim 4, wherein the coil assembly comprises a coil and second joints arranged at two ends of the coil, and the second joints are connected with the first joints through hoses with connecting diameters DN15 mm.
6. The hybrid liquid-cooled air supply unit of claim 4, wherein there are 2 sets of control fan coils, and in each set of control fan coils, the second connector is connected to the first connector by a hose having a connection diameter DN20 mm.
7. The composite liquid-cooled air supply device according to claim 5, wherein the coil pipe is made of a thin-walled copper tube and high-efficiency copper fins through mechanical expansion.
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| CN201821731572.7U CN209949712U (en) | 2018-10-24 | 2018-10-24 | Composite liquid cooling air supply device |
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| CN201821731572.7U CN209949712U (en) | 2018-10-24 | 2018-10-24 | Composite liquid cooling air supply device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074182A (en) * | 2020-10-23 | 2020-12-11 | 中国电子科技集团公司第三十八研究所 | Intelligent multi-cycle cooling system and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112074182A (en) * | 2020-10-23 | 2020-12-11 | 中国电子科技集团公司第三十八研究所 | Intelligent multi-cycle cooling system and use method |
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