CN203036917U - Terminal refrigerating system provided with refrigerant pump and data center terminal refrigerating system - Google Patents

Terminal refrigerating system provided with refrigerant pump and data center terminal refrigerating system Download PDF

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Publication number
CN203036917U
CN203036917U CN 201320025455 CN201320025455U CN203036917U CN 203036917 U CN203036917 U CN 203036917U CN 201320025455 CN201320025455 CN 201320025455 CN 201320025455 U CN201320025455 U CN 201320025455U CN 203036917 U CN203036917 U CN 203036917U
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China
Prior art keywords
refrigerant
refrigeration
terminal
cold
terminal refrigeration
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CN 201320025455
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Chinese (zh)
Inventor
葛海方
王维龙
朱利伟
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深圳睿立方智能科技有限公司
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Priority to CN 201320025455 priority Critical patent/CN203036917U/en
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Abstract

The utility model belongs to the refrigeration field, and provides a terminal refrigerating system provided with a refrigerant pump. The terminal refrigerating system provided with the refrigerant pump is characterized by comprising a plurality of scattered terminal refrigerating units, a refrigeration distribution unit, a refrigerant pipeline, a refrigerant inlet and a refrigerant outlet. The refrigeration distribution unit is connected with the terminal refrigerating units through the refrigerant pipeline and used for providing circulation power and a refrigerant cycle for the terminal refrigerating system. The terminal refrigerating units are used for realizing direct heat exchange between a refrigerant and the air. The refrigerant inlet and the refrigerant outlet are connected with the refrigeration distribution unit and used for providing a cold source for the refrigeration distribution unit. According to the terminal refrigerating system, the refrigeration distribution unit and the terminal refrigerating units can be deployed flexibly in a data center machine room, on-line expansion can be carried out conveniently, and due to the fact that a close heat source refrigerating mode is used, power which needs to be consumed for conveying cold air in long distances in a large space air supply mode is eliminated, and energy consumption is saved.

Description

A kind of terminal refrigeration system and data center's terminal refrigeration system with refrigerated medium pump
Technical field
The utility model belongs to refrigeration technology field, relates in particular to a kind of terminal refrigeration system with refrigerated medium pump and data center's terminal refrigeration system.
Background technology
Compressor is the source of whole circulation powers of air-conditioning system in traditional air-conditioning refrigeration system, compressor is drawn the refrigerant vapour of the low-temp low-pressure that comes out from evaporimeter in the systemic circulation process, with the high temperature after the supercharging, high pressure refrigerant vapor discharged to condenser.In the condenser the inside, the refrigerant vapour of HTHP obtains fully cooling, finally becomes all relatively low liquid refrigerants of temperature and pressure.The liquid refrigerant that comes out from the condenser the inside is finally becoming low temperature, low pressure liquid state through after the throttling of throttle mechanism, and finally get back to evaporimeter and enter again evaporation, also take away heat in the time of evaporation, thereby realized a complete vaporation cooling refrigeration circulation.
In above-mentioned traditional evaporative cooling process, compressor provides unique circulation power for whole circulation, drives cold-producing medium circulation again and again in whole system, and compressor is the heart of traditional air-conditioning system.
Data center's thermic load and power density and day sharp increase now, the single chassis heat dissipation capacity is increasing, and the large space air-supply refrigeration modes of traditional air conditioner in machine room has been very difficult to adapt to the cooling requirement of present data center.The middle-size and small-size compressor refrigeration system of traditional distributing seems unable to do what one wishes in the face of the new variation in the available data and new demand the time, have a series of problem:
1, the relative distance between the indoor unit and outdoor unit of traditional air-cooled air conditioner in machine room and the restriction of installation relative fall influence the deployment of solutions for refrigeration;
2, the stability of traditional middle-size and small-size air conditioner in machine room and reliability are difficult problems of industry always, up to the present fail to obtain good solution, when there was numerous middle-size and small-size air conditioner in machine room unit machine room the inside, it was safeguarded, maintenance work also needs quite huge cost expenditure simultaneously;
3, along with the increase of machine room power density, the space in the data center is tied up by increasing air conditioner in machine room, and the electrisity consumption of air conditioner in machine room also becomes surprising;
4, the conventional data centers cooling scheme build and deployment aspect the cycle oversize, and the poor efficiency of the large space air-supply type of cooling also becomes more and more and denounces.
The data center's cooling scheme that has occurred some near-thermal source refrigeration has in recent years also occurred simultaneously using large-scale handpiece Water Chilling Units to replace the trend of the distributing compression refrigeration of conventional data centers.The efficient of large-scale handpiece Water Chilling Units and refrigerating capacity have bigger advantage comparatively speaking, but are to use chilled water also to bring the hidden danger of water to data center as low-temperature receiver, and this also is the secret worry that water cooling air conditioning system exists always.Simultaneously, the water cooling air conditioning system utilization of adding the near-thermal source type of cooling still can not be satisfied the demand of the more and more higher power density of modern data center.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of terminal refrigeration system and data center's terminal refrigeration system that has refrigerated medium pump, is intended to improve heat exchange efficiency and the exchange capability of heat of terminal system.
The utility model is achieved in that a kind of terminal refrigeration system that has refrigerated medium pump, comprises terminal refrigeration unit, refrigeration allocation units, refrigerant line, refrigerant import, the refrigerant outlet of some dispersions;
Described refrigeration allocation units link to each other with described terminal refrigeration unit by refrigerant line, described refrigeration allocation units are used to described terminal refrigeration system that circulation power and cold-producing medium circulation are provided, and described terminal refrigeration unit is used for realizing carrying out between cold-producing medium and the air direct heat exchange;
Described refrigerant import links to each other with described refrigeration allocation units with described refrigerant outlet, is used for providing low-temperature receiver to described refrigeration allocation units.
Further, described refrigerant line comprises cold-producing medium tracheae and the refrigerant liquid pipe that is connected in described terminal refrigeration unit two ends respectively.
Further, described refrigeration allocation units comprise that plate changes, reservoir, refrigerated medium pump;
Described refrigerant import and refrigerant outlet are located at described plate and are changed, described plate changes has a liquid outlet that links to each other with described refrigerated medium pump with described reservoir simultaneously, also has first a cold-producing medium port that links to each other with described cold-producing medium tracheae, be used for cooling from gaseous state or the gas-liquid mixed agent of the heating afterwards of machine room absorbed inside heat, and the low-temperature refrigerant liquid after the cooling is transported to described reservoir;
Described reservoir is used for receiving and storage is changed cooling low-temperature refrigerant liquid afterwards via described plate;
Described refrigerated medium pump has the second cold-producing medium port that links to each other with described refrigerant liquid pipe, is used for providing low-temperature refrigerant liquid circulation power.
Further, described terminal refrigeration unit comprises blower fan and heat exchanger, is used for the heat exchange between realization cold-producing medium and the air.
Further, the front end of described terminal refrigeration unit is installed a constant flow control valve, is used for the head piece size according to pressure reduction adjusting before and after self self.
Further, described refrigerated medium pump is a totally enclosed cold-producing medium delivery pump.
The refrigerant of described refrigerant import further,, the outlet of described refrigerant is chilled water.
The refrigerant of described refrigerant import further,, the outlet of described refrigerant is the cooling fluid of nature cooling or is the cooling fluid of cooling naturally and the combination of chilled water.
The utility model also provides a kind of data center terminal refrigeration system, comprises as above arbitrary described terminal refrigeration system, and described terminal refrigeration unit is close to the server rack of data center.
The utility model compared with prior art, beneficial effect is:
1, expanded deployment way and the flexibility of traditional air conditioner in machine room refrigeration modes, the worry that factors such as the high drop of traditional air conditioner in machine room, oil return design, long connecting leg are brought has been saved in the deployment of system described in the utility model;
2, the terminal refrigeration unit adopts the method that cold-producing medium directly evaporates swell refrigeration, cold-producing medium utilizes its latent heat heat exchange to absorb the machine room heat, and common chilled water air-conditioning utilizes sensible heat transfer to absorb heat, therefore heat exchange efficiency and the exchange capability of heat of terminal refrigeration system described in the utility model all are greatly improved, and will be conducive to tackle the demand that data center's high heat flux uses;
3, the near-thermal source refrigeration modes of Cai Yonging has saved the wasted work of the required remote transporting cold wind of paying of large space air supply mode, energy efficient;
4, terminal refrigeration system described in the utility model can realize that focus accurately freezes, freezes as required, has cleared away the harm of hot localised points to the data center;
5, than traditional air conditioner in machine room refrigeration modes, terminal refrigeration system of the present utility model has good stability, and maintenance workload reduces greatly, thereby cuts operating costs;
6, terminal refrigeration system described in the utility model can be disposed refrigeration allocation units and terminal refrigeration unit neatly in data center machine room, and can carry out online expansion easily.
Description of drawings
Fig. 1 is the schematic diagram of the utility model terminal refrigeration system.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of terminal refrigeration system that has refrigerated medium pump, the terminal refrigeration unit 1 that comprises some dispersions, the quantity of wherein said terminal refrigeration unit 1 can dispose flexibly according to the actual requirements, freeze allocation units 2, refrigerant line, refrigerant import 6, refrigerant outlet 7; Described refrigeration allocation units 2 link to each other with described terminal refrigeration unit 1 by refrigerant line, described refrigeration allocation units 2 are used to described terminal refrigeration system that circulation power and cold-producing medium circulation are provided, and described terminal refrigeration unit 1 is used for realizing carrying out between cold-producing medium and the air direct heat exchange; In terminal refrigeration unit 1, the refrigerant of low temperature liquid-to-air carries out heat exchange, and low-temperature refrigerant undergoes phase transition owing to having absorbed a large amount of heats in this process, just direct evaporation latent heat heat transfer process.Adopt the sensible heat transfer that does not have phase transition process than common chilled water end system, the latent heat heat transfer process can provide higher heat exchange efficiency and bigger heat exchange amount.Described refrigerant import links to each other with described refrigeration allocation units with described refrigerant outlet, is used for providing low-temperature receiver to described refrigeration allocation units.
Combine with above-described embodiment, described refrigerant line comprises: cold-producing medium tracheae 9 and refrigerant liquid pipe 8, described refrigerant liquid pipe 8 is connected described terminal refrigeration unit two ends respectively with described cold-producing medium tracheae 9.
Combine with above-described embodiment, described refrigeration allocation units 2 comprise: it is plate type heat exchanger that plate changes 3(), reservoir 4, refrigerated medium pump 5.Described refrigerant import 6 and described refrigerant outlet 7 are located at described plate and are changed on 3, described plate changes 3 and has a liquid outlet that links to each other with described refrigerated medium pump 5 with described reservoir 4 simultaneously, also has first a cold-producing medium port that links to each other with described cold-producing medium tracheae 9, be used for cooling from gaseous state or the gas-liquid mixed agent of the heating afterwards of machine room absorbed inside heat, and the low-temperature refrigerant liquid after the cooling is transported to described reservoir 4.Described reservoir 4 receives and stores via plate and changes 3 coolings low-temperature refrigerant liquid afterwards.Described refrigerated medium pump 5 has the second cold-producing medium port that links to each other with described refrigerant liquid pipe 8, be used for low-temperature refrigerant liquid circulation power is provided, and being transported to each described terminal refrigeration unit 1 by described refrigerant liquid pipe 8 after the low-temperature refrigerant liquid supercharging of described reservoir 4 the insides.
Combine with the various embodiments described above, described terminal refrigeration unit 1 comprises blower fan and heat exchanger, is used for the heat exchange between realization cold-producing medium and the air.Described terminal refrigeration unit 1 is generally pressed close to the server cabinet deployment, can save the wasted work of the required remote transporting cold wind of paying of large space air supply mode like this, energy efficient; Certainly also can press close to server disposition according to actual needs.
Combine with the various embodiments described above, for guaranteeing that each described terminal refrigeration unit 1 obtains cold-producing medium equably and distributes, front end at described terminal refrigeration unit 1 is installed a constant flow control valve, and described constant flow control valve is regulated the head piece size of self according to pressure reduction before and after self.Head piece diminishes when pressure reduction is bigger, and head piece is bigger when pressure reduction is less, thereby guarantees that each terminal refrigeration unit 1 obtains uniform flow distribution of refrigerant.
Combine with the various embodiments described above, described refrigerated medium pump 5 is the cold-producing medium delivery pumps that totally enclosed net positive suction head is lower, and according to the field conduct experience, net positive suction head is preferably lower than 1.5 meters.The refrigerated medium pump of refrigerant conveying requires not cause easily the mechanical seal of leaking, and preferred, the motor of described refrigerated medium pump and the pump housing are taked totally-enclosed design.Because liquid refrigerant is a kind of evaporated liquid that is easier to, so needing to use the as far as possible little pump of suction pressure loss in course of conveying carries, should use NPSH(NPSH to represent net positive suction head in short exactly, be design parameter of pump itself) lower pump.Can prevent that like this cold-producing medium from leaking, and guarantee that cold-producing medium successfully is delivered to each terminal refrigeration unit 1.Consider the factor of environmental protection aspect, the utility model is R134a(CH2FCF3, HFC-134a at the cold-producing medium of described refrigeration allocation units 2 and the circulation of terminal refrigeration unit 1 the inside), the used cold-producing medium of the utility model also can be replaced with other cold-producing mediums commonly used, such as R22(CHC lF2, monochlorodifluoromethane), R410a, perhaps R407c etc.Described terminal refrigeration unit 1 adopts the directly method of evaporation swell refrigeration, and cold-producing medium utilizes its latent heat heat exchange to absorb the heat of machine room.Low-temperature refrigerant abundant heat that absorbs machine room inside in terminal refrigeration unit 1 becomes the cold-producing medium of gaseous state or gas-liquid mixed attitude afterwards, and then the cold-producing medium of these gaseous states or gas-liquid mixed attitude is collected and is transported to plate and changes in 3, and then changed chilled water cooling in 3 by plate, finally get back to the circulation that enters in the reservoir 4 next time.
Combine with the various embodiments described above, a kind of embodiment is, the refrigerant of described refrigerant import, the outlet of described refrigerant is chilled water, and described chilled water generally derives from large-scale chilled water unit.
Combine with the various embodiments described above, another kind of embodiment is, consideration for energy-conservation aspect, the refrigerant of described refrigerant import, the outlet of described refrigerant is (Free-Cooling) cooling fluid of nature cooling, the described cooling fluid of cooling naturally can be the refrigerating medium that a kind of and outdoor natural cooling source carried out heat exchange, such as, described refrigerating medium can be water, ethylene glycol solution or cold-producing medium etc.Or can in same set of terminal refrigeration system, both provide chilled water, and the cooling fluid of nature cooling is provided again, so just formed a kind of system of mixing the cooling form.Terminal refrigeration system of the present utility model also can operate as normal in this case.
Combine with the various embodiments described above, a kind of data center terminal refrigeration system comprises aforesaid each described terminal refrigeration system, and described terminal refrigeration unit 1 is close to the server rack of data center.Can save the wasted work of the required remote transporting cold wind of paying of large space air supply mode like this, energy efficient has also solved a series of problems that the high drop of traditional air conditioner in machine room, oil return design and long connecting leg etc. bring simultaneously.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims (9)

1. a terminal refrigeration system that has refrigerated medium pump is characterized in that, comprising: the terminal refrigeration unit of some dispersions, refrigeration allocation units, refrigerant line, refrigerant import, refrigerant outlet;
Described refrigeration allocation units link to each other with described terminal refrigeration unit by refrigerant line, described refrigeration allocation units are used to described terminal refrigeration system that circulation power and cold-producing medium circulation are provided, and described terminal refrigeration unit is used for realizing carrying out between cold-producing medium and the air direct heat exchange;
Described refrigerant import links to each other with described refrigeration allocation units with described refrigerant outlet, is used for providing low-temperature receiver to described refrigeration allocation units.
2. terminal refrigeration system according to claim 1 is characterized in that, described refrigerant line comprises: the cold-producing medium tracheae and the refrigerant liquid pipe that are connected in described terminal refrigeration unit two ends respectively.
3. terminal refrigeration system according to claim 2 is characterized in that, described refrigeration allocation units comprise: plate changes, reservoir, refrigerated medium pump;
Described refrigerant import and refrigerant outlet are located at described plate and are changed, described plate changes has a liquid outlet that links to each other with described refrigerated medium pump with described reservoir simultaneously, also has first a cold-producing medium port that links to each other with described cold-producing medium tracheae, be used for cooling from gaseous state or the gas-liquid mixed agent of the heating afterwards of machine room absorbed inside heat, and the low-temperature refrigerant liquid after the cooling is transported to described reservoir;
Described reservoir is used for receiving and storage is changed cooling low-temperature refrigerant liquid afterwards via described plate;
Described refrigerated medium pump has the second cold-producing medium port that links to each other with described refrigerant liquid pipe, is used for providing low-temperature refrigerant liquid circulation power.
4. terminal refrigeration system according to claim 1 is characterized in that, described terminal refrigeration unit comprises blower fan and heat exchanger, is used for the heat exchange between realization cold-producing medium and the air.
5. terminal refrigeration system according to claim 1 is characterized in that, the front end of described terminal refrigeration unit is installed a constant flow control valve, is used for the head piece size according to pressure reduction adjusting before and after self self.
6. terminal refrigeration system according to claim 3 is characterized in that, described refrigerated medium pump is a totally enclosed cold-producing medium delivery pump.
7. terminal refrigeration system according to claim 1 is characterized in that, the refrigerant of described refrigerant import, the outlet of described refrigerant is chilled water.
8. terminal refrigeration system according to claim 1 is characterized in that, the refrigerant of described refrigerant import, the outlet of described refrigerant is the cooling fluid of nature cooling or is the cooling fluid of cooling naturally and the combination of chilled water.
9. data center's terminal refrigeration system is characterized in that, comprises that described terminal refrigeration unit is close to the server rack of data center as each described terminal refrigeration system of claim 1 to 8.
CN 201320025455 2013-01-17 2013-01-17 Terminal refrigerating system provided with refrigerant pump and data center terminal refrigerating system CN203036917U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075847A (en) * 2013-01-17 2013-05-01 深圳睿立方智能科技有限公司 Terminal refrigeration system with refrigerant pump and data center terminal refrigeration system
CN104133535A (en) * 2014-07-29 2014-11-05 王杰 Liquid cooling heat-removal system of PC host group
CN104566641A (en) * 2014-10-10 2015-04-29 深圳市共济科技有限公司 Energy-saving air conditioning system in data center and heat dissipation method of energy-saving air conditioning system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103075847A (en) * 2013-01-17 2013-05-01 深圳睿立方智能科技有限公司 Terminal refrigeration system with refrigerant pump and data center terminal refrigeration system
CN104133535A (en) * 2014-07-29 2014-11-05 王杰 Liquid cooling heat-removal system of PC host group
CN104566641A (en) * 2014-10-10 2015-04-29 深圳市共济科技有限公司 Energy-saving air conditioning system in data center and heat dissipation method of energy-saving air conditioning system

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CP03 "change of name, title or address"

Address after: 518000 Guangdong city of Shenzhen province Nanshan District Xili Street Tea Light Industrial Park 2 Building 6 floor East

Patentee after: Shenzhen Rui cubic Polytron Technologies Inc

Address before: 518000 Guangdong Province, Nanshan District city Zhongshan Road West Shenzhen Tongle village Jun Xiangda A building 4 floor Q building area

Patentee before: Shenzhen Ruilifang Intelligent Technology Co., Ltd.

Address after: 518000 Guangdong city of Shenzhen province Nanshan District Xili Street Tea Light Industrial Park 2 Building 6 floor East

Patentee after: Shenzhen Rui cubic Polytron Technologies Inc

Address before: 518000 Guangdong Province, Nanshan District city Zhongshan Road West Shenzhen Tongle village Jun Xiangda A building 4 floor Q building area

Patentee before: Shenzhen Ruilifang Intelligent Technology Co., Ltd.

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Granted publication date: 20130703

Termination date: 20200117

CF01 Termination of patent right due to non-payment of annual fee