CN206637881U - Cooling cycle system - Google Patents
Cooling cycle system Download PDFInfo
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- CN206637881U CN206637881U CN201720235699.9U CN201720235699U CN206637881U CN 206637881 U CN206637881 U CN 206637881U CN 201720235699 U CN201720235699 U CN 201720235699U CN 206637881 U CN206637881 U CN 206637881U
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Abstract
Cooling cycle system, including compressor, the first heat exchange unit, the second heat exchange unit, low-temperature receiver, refrigerated medium pump, cooling unit are the utility model is related to, the second heat exchange unit includes interior heat exchange unit, outer heat exchange unit.Compressor, the first heat exchange unit, interior heat exchange unit are in turn connected to form indoor refrigeration cycle by pipeline, and compressor circulates in refrigeration cycle indoors to refrigerant compression；First heat exchange unit is corresponding with outdoor, so that the first heat exchange unit can be with outdoor carry out heat exchange.Low-temperature receiver, refrigerated medium pump, outer heat exchange unit, cooling unit are in turn connected to form outdoor refrigeration cycle by pipeline.Low-temperature receiver is used to store refrigerant, and refrigerated medium pump provides power for refrigerant circulation, and cold-producing medium stream carries out heat exchange through outer heat exchange unit and indoor airflow.Outdoor refrigeration cycle participates in heat exchange using refrigerant, avoids recirculated water or chilled water from being directly entered indoor computer room, causes computer room leak occur；The refrigerant of winter makes outdoor is not in lockout risk.
Description
Technical field
Field of refrigeration is the utility model is related to, more specifically to a kind of cooling cycle system.
Background technology
Double the low-temperature receiver units or dual coil pipes unit applied in current many large-scale data centers, using compressor mode
With freezing aqueous mode refrigeration.
Following risk be present in compressor cooling by water scheme or the double low-temperature receiver application schemes of chilled water：
1st, recirculated water introduces computer room, if coil pipe or solder joint in computer room are also or the junction such as water valve flange exists and let out
Dew, can cause recirculated water to enter computer room, cause computer room safety accident, or cause leakage sensor frequently to alert；
2nd, under outdoor low temperature condition, normal water supply circulation can not be carried out by easily causing coil freeze, make compressor water cooling cold
But scheme refrigeration unit can not normal operation, air-conditioner set refrigerating capacity in computer room can be reduced, the risk that computer room overtemperature be present；
3rd, energy-saving effect is poor, it is impossible to makes full use of the natural cooling source under outdoor cryogenic conditions；
4th, scene be related to the circulatory system such as cooling water pipeline or cold water main unit pipeline arrangement, pipeline arrangement it is relative complex,
The cost of supporting construction can increase.
Development and national energy-saving policy requirements more and more higher with data center, Energy Conservation and high reliability are answered
The first choice of green large-scale data center is would is that with scheme.
Utility model content
The technical problems to be solved in the utility model is, there is provided a kind of improved cooling cycle system.
Technical scheme is used by the utility model solves its technical problem：A kind of cooling cycle system is constructed, including
Compressor, the first heat exchange unit, the second heat exchange unit, low-temperature receiver, refrigerated medium pump, cooling unit, second heat exchange unit include
Interior heat exchange unit, outer heat exchange unit；
The compressor, the first heat exchange unit, interior heat exchange unit are in turn connected to form indoor kind of refrigeration cycle by pipeline and returned
Road, the compressor are compressed in the indoor refrigeration cycle to refrigerant and circulated；First heat exchange unit and outdoor are right
Should, so that first heat exchange unit can be with outdoor carry out heat exchange；
The low-temperature receiver, refrigerated medium pump, outer heat exchange unit, cooling unit are in turn connected to form outdoor kind of refrigeration cycle by pipeline
Loop；
The low-temperature receiver is used to store refrigerant, and the refrigerated medium pump provides power for outdoor refrigerant circulation, in the system
Under cryogen pumping action, the cold-producing medium stream carries out heat exchange through the outer heat exchange unit and indoor airflow.
Preferably, the outdoor refrigeration cycle also includes the tie point in parallel with the outer heat exchange unit, described
The first triple valve is provided between tie point, outer heat exchange unit and the refrigerated medium pump, first triple valve is changed to distinguish
Turn on the tie point, outer heat exchange unit.
Preferably, first heat exchange unit includes refrigerant heat exchanger, first heat exchange unit be plate type heat exchanger,
One kind in shell and tube exchanger；Or, first heat exchange unit includes air-cooled condenser.
Preferably, be connected with the second branch road between the outer heat exchange unit and the cooling unit, second branch road with
The first heat exchange unit connection, to be exchanged heat with first heat exchange unit.
Preferably, it is also associated with setting with second branch circuit parallel connection between the outer heat exchange unit and the cooling unit
The 3rd branch road, be provided with the second triple valve between second branch road, the 3rd branch road and the outer heat exchange unit, the described 2nd 3
Port valve is changed to be respectively turned on second branch road, the 3rd branch road.
Preferably, second heat exchange unit is double-coil heat-exchanging device.
Preferably, the cooling unit includes one kind in heat exchange cooling device, devaporizer, fan coiled heat-exchanger
Or combination；
Preferably, the cooling unit includes heat exchange cooling device, the devaporizer being arranged in parallel.
Preferably, the cooling unit includes heat exchange cooling device, the fan coiled heat-exchanger being arranged in parallel.
Preferably, the heat exchange cooling device includes cooling tower and cooling heat exchanger, and described cooling heat exchanger is package
Cooling heat exchanger described in heat exchanger or plate type heat exchanger is connected with the low-temperature receiver and the outer heat exchange unit, the cooling heat transferring
Device is connected with the cooling tower and cooled down.
Implement cooling cycle system of the present utility model, have the advantages that：The outdoor refrigeration of cooling cycle system
Circulation loop participates in heat exchange using refrigerant, avoids recirculated water or chilled water from being directly entered indoor computer room, directly avoids interior
The security risk of computer room leak；The refrigerant of winter makes outdoor is not in lockout risk, can make full use of outdoor cryogenic conditions
Lower natural cooling source cools down, and improves the energy-saving effect of indoor computer room data center；Using refrigerant-cycle systems pipeline
Arrangement, pipeline arrangement is simple, reduces pipeline cost of layout.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the cooling cycle system in the utility model embodiment；
Structural representation when Fig. 2 is the second branch road cancellation by the cooling cycle system in Fig. 1；
Structural representation when Fig. 3 is the 3rd branch road cancellation by the cooling cycle system in Fig. 1；
Fig. 4 is structural representation when cancelling the 3rd branch road of the cooling cycle system in Fig. 1 and heat exchange cooling device；
When Fig. 5 is by the 3rd branch road and devaporizer of the cooling cycle system in Fig. 1, fan coiled heat-exchanger cancellation
Structural representation；
Fig. 6 is the logical flow chart of the refrigerating method of the cooling cycle system in Fig. 1.
Embodiment
In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, it is detailed now to compare accompanying drawing
Illustrate specific embodiment of the present utility model.
As shown in figure 1, the cooling cycle system in one preferred embodiment of the utility model includes compressor 11, first
Heat exchange unit 12, the second heat exchange unit, low-temperature receiver 21, refrigerated medium pump 22, cooling unit 24, it is single that the second heat exchange unit includes interior heat exchange
Member 13, outer heat exchange unit 23, generally, the second heat exchange unit is double-coil heat-exchanging device, in other embodiments, the second heat exchange unit
Or indoor evaporator.
Compressor 11, the first heat exchange unit 12, interior heat exchange unit 13 are in turn connected to form indoor kind of refrigeration cycle by pipeline
Loop 1, compressor 11 is compressed in refrigeration cycle 1 indoors to refrigerant to be circulated, and interior heat exchange unit 13 is located at the interiors such as computer room
Environment, indoor heat load is transmitted to outdoor refrigeration cycle 2.First heat exchange unit 12 positioned at indoor and corresponding with outdoor,
So that the first heat exchange unit 12 can be with outdoor carry out heat exchange.
Refrigerant in outdoor refrigeration cycle 2 can be the refrigerant medium such as water or other refrigerants, and refrigerant is changed by interior
Hot cell 13 is converted into low-pressure gaseous refrigerant medium, then the gaseous coolant by the compressing and converting of compressor 11 into HTHP, enters
Enter the cooling heat release of the first heat exchange unit 12, the refrigerant medium for being converted into high pressure-temperature liquid continues to convert by choke valve 16 downwards
Interior heat exchange unit 13 is circulated to for the gas-liquid mixed refrigerant medium of low-temp low-pressure, completes indoor refrigerative circle system.
In certain embodiments, also it is sequentially provided with drying between the first heat exchange unit 12 and the loop of interior heat exchange unit 13
The parts such as filter 14, liquid-sighting glass 15, choke valve 16, the refrigerant medium of high pressure-temperature liquid is converted into the gas-liquid of low-temp low-pressure
Mixing refrigerant medium enters interior heat exchange unit 13.
Low-temperature receiver 21, refrigerated medium pump 22, outer heat exchange unit 23, cooling unit 24 are in turn connected to form outdoor refrigeration by pipeline
Circulation loop 2.Low-temperature receiver 21 is used to store refrigerant, and refrigerated medium pump 22 provides power for outdoor refrigerant circulation, in refrigerated medium pump
Under 22 effects, refrigerant flows through outer heat exchange unit 23 and carries out heat exchange with indoor airflow successively, realizes the refrigeration to interior, or
Heat exchange is carried out to the gaseous refrigerant of indoor HTHP by the first heat exchange unit 12, the thermic load of interior is taken out of to room
Outside, realize to indoor cooling effect.
Pipeline location between first heat exchange unit 12 and outer heat exchange unit 23 and cooling unit 24 is corresponding, so that first changes
Hot cell 12 can carry out heat exchange with outdoor refrigeration cycle 2.
Outdoor participates in heat exchange using refrigerant, avoids recirculated water or chilled water from being directly entered indoor computer room, directly avoids
The security risk of indoor computer room leak；The refrigerant of winter makes outdoor is not in lockout risk, can make full use of outdoor low temperature
Under the conditions of natural cooling source cool down, improve the energy-saving effect of indoor computer room data center；Using refrigerant-cycle systems
Pipeline arranges that pipeline arrangement is simple, reduces pipeline cost of layout.Certainly, cooling cycle system, which can also be applied to other interiors, needs
The environment to be freezed.
Refrigerant can be monochlorodifluoromethane (referred to as R22), or by 50% difluoromethane and 50% 5 fluorine second
The mixture (referred to as R410A) of alkane composition, or be HFC-134a (referred to as R134a), or by difluoromethane and five fluorine
For ethane along with the mixture (referred to as R407C) of HFC-134a composition, refrigerant can be one kind listed above.
Outdoor refrigeration cycle 2 also includes the tie point 25 in parallel with outer heat exchange unit 23, tie point 25, changes outside
The first triple valve 26 is provided between hot cell 23 and refrigerated medium pump 22, the first triple valve 26 is changed to be respectively turned on tie point
25th, outer heat exchange unit 23.When needing outer heat exchange unit 23 with indoor heat load heat exchange, the first triple valve 26 is by outer heat exchange unit
23 turn on outdoor refrigeration cycle 2, when not needing outer heat exchange unit 23 to be exchanged heat with indoor heat load, the first triple valve 26
Tie point 25 and outdoor refrigeration cycle 2 are turned on.
First heat exchange unit 12 includes refrigerant heat exchanger, and the first heat exchange unit 12 is plate type heat exchanger, shell-tube type heat exchange
One kind in device.In other embodiments, the first heat exchange unit 12 may also comprise air-cooled condenser, can realize outdoor kind of refrigeration cycle
Loop 2 and outdoor heat exchange.
Further, in certain embodiments, the second branch road 27 is connected between outer heat exchange unit 23 and cooling unit 24,
Second branch road 27 connects with the first heat exchange unit 12, to be exchanged heat with the first heat exchange unit 12.Second branch road 27 can allow outdoor to follow
Cooling agent and the first heat exchange unit 12 in loop back path directly carry out heat exchange, improving heat exchanging efficiency.
The high temperature that cooling agent in second branch road 27 exports as the cooling medium of the condensation side of compressor 11 to compressor 11
High pressure refrigerant working medium is cooled down, and the gaseous refrigerant come that swapped out from the first heat exchange unit 12 is put by cooling unit 24 again
Heat, liquid refrigerant is changed into, then by low-temperature receiver 21 and refrigerated medium pump 22, complete the cyclic process of outdoor refrigerant working medium.It is cold
Source 21 is the fluid reservoir equipped with refrigerant.
The 3rd branch road 28 being arranged in parallel with the second branch road 27 is also associated between outer heat exchange unit 23 and cooling unit 24,
The second triple valve 29 is provided between second branch road 27, the 3rd branch road 28 and outer heat exchange unit 23, the second triple valve 29 is changed to divide
The second branch road 27, the 3rd branch road 28 are not turned on.Should not the outdoor heat exchange unit 12 of refrigeration cycle 2 and first carry out heat exchange
When, the second branch road 27 is closed, allows the 3rd branch road 28 to connect outer heat exchange unit 23 and cooling unit 24.
In other embodiments, as shown in Fig. 2 can also cancel the second branch road 27, the 3rd branch road 28 is directly allowed to be connected to
Between outer heat exchange unit 23 and cooling unit 24, or as shown in figure 3, the 3rd branch road 28 is cancelled, the second branch road 27 is allowed to connect
Between outer heat exchange unit 23 and cooling unit 24.
In certain embodiments, cooling unit 24 includes heat exchange cooling device 241, the devaporizer 242 being arranged in parallel.
Heat exchange cooling device 241 includes cooling tower 2411 and cooling heat exchanger 2412, cooling heat exchanger 2412 and low-temperature receiver 21 and outer heat exchange
Unit 23 connects, and cooling heat exchanger 2412 can be case tube heat exchanger or plate type heat exchanger, and progress is connected with cooling tower 2411
Cooling.
The refrigerant that outer heat exchange unit 23 comes out enters cooling heat transferring pipe after the second branch road 27 or the 3rd branch road 28
Coolant heat exchange in 2412, with cooling tower 2411, the refrigerant of liquid is converted into, enters low-temperature receiver 21.Refrigerant passes through
Devaporizer 242 is can also pass through after second branch road 27 or the 3rd branch road 28 to be cooled down, the refrigerant for being converted into liquid enters
Enter to low-temperature receiver 21.
In other embodiments, cooling unit 24 may also comprise heat exchange cooling device 241, the fan coil being arranged in parallel and change
Hot device 243, the devaporizer 242 in above-described embodiment is changed to fan coiled heat-exchanger 243.Refrigerant passes through second
Fan coiled heat-exchanger 243 is can also pass through after the branch road 28 of road 27 or the 3rd to be cooled down, the refrigerant for being converted into liquid enters
To low-temperature receiver 21.Heat exchange cooling device 241 can reduce the risk that fan coiled heat-exchanger 243 freezes, and improve outdoor cooling circulation
The reliability of system.
Certainly, in other embodiments, as shown in Figure 4, Figure 5, cooling unit 24 can also only include heat exchange cooling device
241st, devaporizer 242, one kind in fan coiled heat-exchanger 243 or other combinations.
It is possible to further individually by indoor refrigeration cycle 1 or outdoor refrigeration cycle 2 to interior system
It is cold, interior can also be freezed by the way of indoor refrigeration cycle 1 or outdoor refrigeration cycle 2 work simultaneously,
Switching between three kinds of refrigeration modes can be controlled according to outdoor environment temperature and indoor refrigeration demand or thermal load demands
System and switching.
As shown in fig. 6, the preferable refrigerating method of cooling cycle system one of the present utility model comprises the following steps：
S1, the size for contrasting Tout and Tset, and contrast CFr and CFset size, wherein, Tout is outdoor environment
Temperature, Tset are default refrigeration target temperature, and CFr is refrigeration demand, and CFset is default refrigeration target.
S2, as Tout >=Tset+delt T1, CFr >=CFset+delt CF, refrigeration cycle 1 in priming chamber, i.e.,
Indoor refrigeration mode, wherein, delt T1 are the upper limit model that the outdoor environment temperature of setting can exceed default refrigeration target temperature
Enclose, delt CF are the range difference that the refrigeration demand of setting can exceed default refrigeration target；
As Tset+delt T1 >=Tout >=Tset-deltT2, and during CFr >=CFset-deltCF, made in priming chamber
SAPMAC method loop 1 and outdoor refrigeration cycle 2, wherein, deltT2 is that the outdoor environment temperature of setting can exceed default refrigeration
The lower range of target temperature；
As Tset+delt T1 >=Tout >=Tset-deltT2, and during CFr≤CFset-delt CF, made outside priming chamber
SAPMAC method loop 2；
As Tout≤Tset-deltT2, the outer refrigeration cycle 2 of priming chamber.
Further, it is further comprising the steps of in order to more save：
S3, as CFr≤0+ δ, close cooling cycle system, wherein, δ is default to need to open cooling cycle system
Minimum refrigeration target.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of cooling cycle system, it is characterised in that including compressor（11）, the first heat exchange unit（12）, the second heat exchange it is single
Member, low-temperature receiver（21）, refrigerated medium pump（22）, cooling unit（24）, second heat exchange unit includes interior heat exchange unit（13）, outside change
Hot cell（23）；
The compressor（11）, the first heat exchange unit（12）, interior heat exchange unit（13）Indoor system is in turn connected to form by pipeline
SAPMAC method loop（1）, the compressor（11）The indoor refrigeration cycle is compressed in refrigerant（1）Interior circulation；Described
One heat exchange unit（12）It is corresponding with outdoor, so that first heat exchange unit（12）Can be with outdoor carry out heat exchange；
The low-temperature receiver（21）, refrigerated medium pump（22）, outer heat exchange unit（23）, cooling unit（24）It is in turn connected to form by pipeline
Outdoor refrigeration cycle（2）；
The low-temperature receiver（21）For storing refrigerant, the refrigerated medium pump（22）Power is provided for outdoor refrigerant circulation, in institute
State refrigerated medium pump（22）Under effect, the cold-producing medium stream is through the outer heat exchange unit（23）Heat exchange is carried out with indoor airflow.
2. cooling cycle system according to claim 1, it is characterised in that the outdoor refrigeration cycle（2）Also wrap
Include and the outer heat exchange unit（23）Tie point in parallel（25）, the tie point（25）, outer heat exchange unit（23）With institute
State refrigerated medium pump（22）Between be provided with the first triple valve（26）, first triple valve（26）Change to be respectively turned on described first
Branch road（25）, outer heat exchange unit（23）.
3. cooling cycle system according to claim 1, it is characterised in that first heat exchange unit（12）Including refrigeration
Agent heat exchanger, first heat exchange unit（12）For one kind in plate type heat exchanger, shell and tube exchanger；Or, described first change
Hot cell（12）Including air-cooled condenser.
4. cooling cycle system according to claim 3, it is characterised in that the outer heat exchange unit（23）With the cooling
Unit（24）Between be connected with the second branch road（27）, second branch road（27）With first heat exchange unit（12）Connection, with
With first heat exchange unit（12）Heat exchange.
5. cooling cycle system according to claim 4, it is characterised in that the outer heat exchange unit（23）With the cooling
Unit（24）Between be also associated with and second branch road（27）The 3rd branch road being arranged in parallel（28）, second branch road
（27）, the 3rd branch road（28）With the outer heat exchange unit（23）Between be provided with the second triple valve（29）, second triple valve
（29）Change to be respectively turned on second branch road（27）, the 3rd branch road（28）.
6. cooling cycle system according to claim 1, it is characterised in that second heat exchange unit is double-coil heat-exchanging
Device.
7. cooling cycle system according to claim 1, it is characterised in that the cooling unit（24）Cooled down including heat exchange
Device（241）, devaporizer（242）, fan coiled heat-exchanger（243）In one kind or combination.
8. cooling cycle system according to claim 7, it is characterised in that the cooling unit（24）Including being arranged in parallel
Heat exchange cooling device（241）, devaporizer（242）.
9. cooling cycle system according to claim 7, it is characterised in that the cooling unit（24）Including being arranged in parallel
Heat exchange cooling device（241）, fan coiled heat-exchanger（243）.
10. according to the cooling cycle system described in any one of claim 7 to 9, it is characterised in that the heat exchange cooling device
（241）Including cooling tower（2411）And cooling heat exchanger（2412）, the cooling heat exchanger（2412）For shell and tube exchanger or
Cooling heat exchanger described in plate type heat exchanger（2412）With the low-temperature receiver（21）With the outer heat exchange unit（23）Connection, the cooling
Heat exchanger（2412）With the cooling tower（2411）Connection is cooled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235699.9U CN206637881U (en) | 2017-03-09 | 2017-03-09 | Cooling cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720235699.9U CN206637881U (en) | 2017-03-09 | 2017-03-09 | Cooling cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206637881U true CN206637881U (en) | 2017-11-14 |
Family
ID=60249500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720235699.9U Active CN206637881U (en) | 2017-03-09 | 2017-03-09 | Cooling cycle system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206637881U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007001A (en) * | 2017-12-29 | 2018-05-08 | 扬州海通电子科技有限公司 | A kind of vehicle-mounted removable constant temperature liquid cold source device |
| CN112002076A (en) * | 2020-08-19 | 2020-11-27 | 中冶置业集团有限公司 | Contact-free bidirectional express cabinet |
| CN112594955A (en) * | 2020-12-14 | 2021-04-02 | 广州兰石技术开发有限公司 | System capable of switching cold and heat sources |
-
2017
- 2017-03-09 CN CN201720235699.9U patent/CN206637881U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007001A (en) * | 2017-12-29 | 2018-05-08 | 扬州海通电子科技有限公司 | A kind of vehicle-mounted removable constant temperature liquid cold source device |
| CN112002076A (en) * | 2020-08-19 | 2020-11-27 | 中冶置业集团有限公司 | Contact-free bidirectional express cabinet |
| CN112594955A (en) * | 2020-12-14 | 2021-04-02 | 广州兰石技术开发有限公司 | System capable of switching cold and heat sources |
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