CN207907403U - Uninterrupted refrigeration system - Google Patents
Uninterrupted refrigeration system Download PDFInfo
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- CN207907403U CN207907403U CN201820175257.4U CN201820175257U CN207907403U CN 207907403 U CN207907403 U CN 207907403U CN 201820175257 U CN201820175257 U CN 201820175257U CN 207907403 U CN207907403 U CN 207907403U
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Abstract
The utility model is related to a kind of uninterrupted refrigeration systems, the uninterrupted refrigeration system includes indoor unit and the outdoor unit that is connect with indoor unit, and outdoor unit includes heat exchange unit for cooling down refrigerant and connection indoor unit and heat exchange unit, refrigerant after cooling is transported to the refrigerant compress cell of indoor unit；Heat exchange unit includes carrying out the air-cooled heat exchange unit of air-cooled heat exchange to refrigerant and providing the cold-storage heat exchange unit that chilled water carries out refrigerant water cooling heat exchange, and air-cooled heat exchange unit and cold-storage heat exchange unit are separately connected refrigerant compress cell.The utility model can carry out the cold energy saving refrigeration of nature using refrigerant compress cell, realize the energy saving of data center machine room；Utilize cold-storage heat exchange unit; ensure that refrigeration system can exactly match the cooling load of data center machine room in short time shutdown or refrigeration system in startup initial operating stage; the localized hyperthermia for occurring inside computer room before refrigeration system is stable is prevented, or even causes the damage of calculator room equipment.
Description
Technical field
The utility model is related to data center machine room field of refrigeration, more specifically to a kind of uninterrupted refrigeration
System.
Background technology
With the high speed development of modern information technologies so that data center, communication machine room are popularized on a large scale, communication enterprise
Energy consumption problem is also more and more prominent.In the case where the policy of national energy conservation and emission reduction is led, major operator and enterprise when branching out,
All in raising data center efficiency of trying every possible means, reduction power consumption expenditure.
Data center machine room is as a kind of long-term Code in Hazardous Special Locations that need to provide refrigeration, especially because odjective cause leads to machine
The air-conditioning short time in room shuts down, and also or is the initial stage run in starting of air conditioner, entire refrigeration system is also not up to stablized, entirely
When system operational parameters and refrigerating capacity also fail to exactly match the cooling load of entire data center machine room, in this situation
Under, entire data center machine room is particularly easy to the localized hyperthermia for the short time occur, and for the super big modem of heat flow density
Room, temperature can rise the damage for be easy to causeing computer room relevant device quickly.
Utility model content
The technical problem to be solved by the present invention is to for the drawbacks described above of the prior art, provide a kind of uninterrupted
Refrigeration system.
Technical solution adopted by the utility model to solve its technical problems is：A kind of uninterrupted refrigeration system is constructed, is wrapped
The outdoor unit for including indoor unit and being connect with the indoor unit, the outdoor unit include heat exchange unit for cooling down refrigerant and
It connects the indoor unit and heat exchange unit, increase the refrigerant for being transported to the indoor unit through heat exchange unit refrigerant after cooling
Press unit；The heat exchange unit includes carrying out the air-cooled heat exchange unit of air-cooled heat exchange to refrigerant and providing chilled water to refrigeration
Agent carries out the cold-storage heat exchange unit of water cooling heat exchange, and the air-cooled heat exchange unit and cold-storage heat exchange unit are separately connected the refrigeration
Agent compress cell.
Preferably, the refrigerant outlet of the indoor unit connects the refrigerant inlet of the air-cooled heat exchange unit, the wind
The refrigerant outlet of cold heat exchange unit is separately connected the refrigerant inlet of the cold-storage heat exchange unit and the system by triple valve
The entrance of cryogen compress cell, the refrigerant outlet of the cold-storage heat exchange unit connect the entrance of the refrigerant compress cell,
The outlet of the refrigerant compress cell connects the refrigerant inlet of the indoor unit.
Preferably, the refrigerant outlet of the indoor unit is separately connected the refrigeration of the air-cooled heat exchange unit by triple valve
The refrigerant inlet of agent entrance and the cold-storage heat exchange unit, the refrigerant outlet and the cold-storage of the air-cooled heat exchange unit change
The refrigerant outlet of hot cell is separately connected the entrance of the refrigerant compress cell, and the outlet of the refrigerant compress cell connects
Connect the refrigerant inlet of the indoor unit.
Preferably, the indoor unit includes evaporator, indoor unit wind turbine and compressor for the evaporator blowing, described
The refrigerant outlet of evaporator connects the refrigerant inlet of the air-cooled heat exchange unit, and the outlet of the refrigerant compress cell connects
Connect the refrigerant inlet of the evaporator；The entrance of the compressor connects the refrigerant outlet of the evaporator, the compression
The outlet of machine connects the refrigerant inlet of the air-cooled heat exchange unit；And/or
The air-cooled heat exchange unit includes air-cooled condenser and the outdoor unit wind turbine blown for the air-cooled condenser, described
The refrigerant inlet of air-cooled condenser connects the refrigerant outlet of the indoor unit, and the refrigerant outlet of the air-cooled condenser connects
Connect the entrance of the refrigerant compress cell.
Preferably, the cold-storage heat exchange unit include for chilled water and refrigerant carry out heat exchange cold-storage heat-exchanger,
Water process at the refrigeration machine of chilled water, the cold-accumulating box for storing chilled water and is used for the cold-accumulating box for chilled water
In chilled water send to the cold-storage water pump of the cold-storage heat-exchanger；
The refrigerant inlet of the cold-storage heat-exchanger connects the refrigerant outlet of the air-cooled heat exchange unit, and the cold-storage changes
The refrigerant outlet of hot device connects the entrance of the refrigerant compress cell；
The water outlet of the refrigeration machine connects the water inlet of the cold-accumulating box, and the water outlet of the cold-accumulating box connects the storage
The water inlet in the water outlet and the cold-storage heat-exchanger of the cold-accumulating box is arranged in the water inlet of cold heat exchanger, the cold-storage water pump
Between；
The water outlet of the cold-storage heat-exchanger connects the water inlet of the cold-accumulating box, and the water outlet of the cold-accumulating box is also connected with
The water inlet of the refrigeration machine.
Preferably, the indoor unit includes evaporator, indoor unit wind turbine and compressor for the evaporator blowing, described
The refrigerant outlet of evaporator is separately connected the refrigerant inlet of the air-cooled heat exchange unit by triple valve and the cold-storage changes
The refrigerant inlet of hot cell, the refrigerant inlet of the evaporator connect the outlet of the refrigerant compress cell；The pressure
The entrance of contracting machine connects the refrigerant outlet of the evaporator, and the outlet of the compressor is separately connected the wind by triple valve
The refrigerant inlet of the refrigerant inlet of cold heat exchange unit and the cold-storage heat exchange unit；And/or
The air-cooled heat exchange unit includes air-cooled condenser and the outdoor unit wind turbine blown for the air-cooled condenser, described
The refrigerant inlet of air-cooled condenser connects the refrigerant outlet of the indoor unit, the refrigerant outlet of the air-cooled heat exchange unit
Connect the entrance of the refrigerant compress cell.
Preferably, the cold-storage heat exchange unit include for chilled water and refrigerant carry out heat exchange cold-storage heat-exchanger,
Water process at the refrigeration machine of chilled water, the cold-accumulating box for storing chilled water and is used for the cold-accumulating box for chilled water
In chilled water send to the cold-storage water pump of the cold-storage heat-exchanger；
The refrigerant inlet of the cold-storage heat-exchanger connects the refrigerant outlet of the indoor unit, the cold-storage heat-exchanger
Refrigerant outlet connects the entrance of the refrigerant compress cell；
The water outlet of the refrigeration machine connects the water inlet of the cold-accumulating box, and the water outlet of the cold-accumulating box connects the storage
The water inlet in the water outlet and the cold-storage heat-exchanger of the cold-accumulating box is arranged in the water inlet of cold heat exchanger, the cold-storage water pump
Between；
The water outlet of the cold-storage heat-exchanger connects the water inlet of the cold-accumulating box, and the water outlet of the cold-accumulating box is also connected with
The water inlet of the refrigeration machine.
Preferably, the refrigerant compress cell includes liquid storage device for storing refrigerant and is pressurized for the refrigerant
Refrigerated medium pump；The entrance of the liquid storage device is separately connected refrigerant outlet and the cold-storage heat exchange of the air-cooled heat exchange unit
The refrigerant outlet of unit, the outlet of the liquid storage device connect the entrance of the refrigerated medium pump, and the outlet of the refrigerated medium pump connects
Connect the refrigerant inlet of the indoor unit.
The utility model additionally provides a kind of control method of uninterrupted refrigeration system, is applied to above-mentioned uninterrupted refrigeration
System, this approach includes the following steps：
S1, judge whether outdoor temperature is more than preset temperature；
If S2, the outdoor temperature are more than preset temperature, start the compressor of indoor unit；
In S3, the preset time run after the compressor start, control cold-storage heat exchange unit provides chilled water to system
Cryogen carries out heat exchange；
S4, after the preset time, control the cold-storage heat exchange unit and stop providing chilled water refrigerant is carried out
Heat exchange.
Preferably, the method is further comprising the steps of：
S5, it detects whether to power off；
S6, if so, start stand-by power supply be indoor unit indoor unit wind turbine, air-cooled heat exchange unit, cold-storage heat exchange unit
It powers with refrigerant compress cell, controls the cold-storage heat exchange unit and provide chilled water to refrigerant progress heat exchange.
The uninterrupted refrigeration system for implementing the utility model, has the advantages that：It can using refrigerant compress cell
The cold energy saving refrigeration of nature is carried out, realizes the energy saving of data center machine room；Using cold-storage heat exchange unit, ensure refrigeration system in short-term
Between shut down or refrigeration system is starting initial operating stage can exactly match the cooling load of data center machine room, prevent be in refrigeration
Unite the stable localized hyperthermia occurred before inside computer room, or even causes the damage of calculator room equipment.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the structural schematic diagram of the uninterrupted refrigeration system first embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the uninterrupted refrigeration system second embodiment of the utility model；
Fig. 3 is the control method flow chart of the uninterrupted refrigeration system of the utility model.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
As shown in Figure 1 and Figure 2, the uninterrupted refrigeration system of the utility model includes indoor unit 1 and is connect with indoor unit 1
Outdoor unit, outdoor unit includes heat exchange unit for cooling down refrigerant and connection indoor unit 1 and heat exchange unit, will be single through heat exchange
Member refrigerant after cooling is transported to the refrigerant compress cell 2 of indoor unit 1；Heat exchange unit includes carrying out air-cooled heat to refrigerant
The air-cooled heat exchange unit and offer chilled water that exchange carry out refrigerant the cold-storage heat exchange unit 3 of water cooling heat exchange, air-cooled heat exchange
Unit and cold-storage heat exchange unit 3 are separately connected refrigerant compress cell 2.
Specifically, the uninterrupted refrigeration system includes 1 two parts of outdoor unit and indoor unit, outdoor unit and indoor unit 1 are mutual
The refrigeration of the common complete paired data central machine room of connection.Machine 1 completes temperature raising after refrigeration to refrigerant indoors, passes through outdoor unit
Heat exchange unit heat exchange is carried out to refrigerant, make refrigerant cooling, cooling, again along refrigerant circulation loop after refrigerant cooling
Indoor unit 1 is returned to freeze.Wherein, heat exchange unit includes air-cooled heat exchange unit and cold-storage heat exchange unit 3 again, and air-cooled heat exchange is single
Member carries out cold wind-refrigerant heat exchange by cold wind using air-cooled heat exchange to refrigerant；Cold-storage heat exchange unit 3
Using water-cooled heat exchange, i.e., chilled water-refrigerant heat exchange is carried out to refrigerant by chilled water.
Embodiment one
As shown in Figure 1, in the uninterrupted refrigeration system first embodiment of the utility model, the refrigerant outlet of indoor unit 1
The refrigerant inlet of air-cooled heat exchange unit is connected, the refrigerant outlet of air-cooled heat exchange unit is separately connected cold-storage by triple valve and changes
The entrance of the refrigerant inlet and refrigerant compress cell 2 of hot cell 3, the refrigerant outlet connection refrigeration of cold-storage heat exchange unit 3
The entrance of agent compress cell 2, the refrigerant inlet of the outlet connection indoor unit 1 of refrigerant compress cell 2.
Indoor unit 1 includes evaporator 1-2, for the indoor unit wind turbine 1-1 and compressor 1-3 of evaporator 1-2 air-supply, evaporator
The refrigerant outlet of 1-2 connects the refrigerant inlet of air-cooled heat exchange unit, the outlet connection evaporator 1- of refrigerant compress cell 2
2 refrigerant inlet；The refrigerant outlet of the entrance connection evaporator 1-2 of compressor 1-3, the outlet of compressor 1-3 connects wind
The refrigerant inlet of cold heat exchange unit.Preferably, indoor unit 1 further includes device for drying and filtering, and device for drying and filtering is arranged in refrigerant
Between the outlet and the refrigerant inlet of evaporator 1-2 of compress cell 2, for removing impurity and steam.
Air-cooled heat exchange unit includes air-cooled condenser 4 and the outdoor unit wind turbine 5 blown for air-cooled condenser 4, air-cooled condensation
The refrigerant outlet of the refrigerant inlet connection indoor unit 1 of device 4, the refrigerant outlet connection refrigerant supercharging of air-cooled condenser 4
The entrance of unit 2.Machine 1 completes temperature raising after refrigeration to refrigerant indoors, and hot friendship is carried out to refrigerant by air-cooled condenser 4
It changes, refrigerant is made to cool down, the refrigerant after cooling gets in machine 1, carries out indoor refrigeration cool-down.The shape of heat exchanging part can root
According to needing to design, usually variously-shaped pipeline.The form of air-cooled condenser 4 is unlimited, can be plate heat exchanger, can also
It is the arbitrary forms such as casing, package.
Cold-storage heat exchange unit 3 includes cold-storage heat-exchanger 3-1, refrigeration machine 3-4, cold-accumulating box 3-3 and cold-storage water pump 3-2.Wherein,
Refrigeration machine 3-4 is used for water process into chilled water, and cold-accumulating box 3-3 is used for for storing chilled water, cold-storage water pump 3-2 by cold-accumulating box
Chilled water in 3-3 send to cold-storage heat-exchanger 3-1, cold-storage heat-exchanger 3-1 and carries out heat exchange for chilled water and refrigerant.It can be with
Understand, described " cold-storage " refers to that cold-storage heat exchange unit 3 at chilled water and stores water process herein.
Specifically, the water inlet of the water outlet connection cold-accumulating box 3-3 of refrigeration machine 3-4, the water outlet connection system of cold-accumulating box 3-3
The water inlet of cold 3-4 forms a closed circulation loop between refrigeration machine 3-4 and cold-accumulating box 3-3.Refrigeration machine 3-4 will be cold
Freeze in water feeding cold-accumulating box 3-3 and stores, when the coolant-temperature gage in cold-accumulating box 3-3 is higher than preset chilled water temperature, cold-accumulating box 3-3
Interior flow is back to refrigeration machine 3-4 and is processed into satisfactory chilled water, which is sent into cold-storage from refrigeration machine 3-4 outflows again
In case 3-3.Preferably, chilled water is that temperature is less than 20 DEG C of water, is further preferably 7~12 DEG C of water.The temperature of chilled water
Spend relatively low, good cooling results, when refrigeration system when shutting down the short time or refrigeration system start initial operating stage, can use
Cold-storage heat exchange unit 3 provides chilled water for the water-flow circuit of refrigeration system, cools down more rapidly, with matched data central machine room
Cooling load prevents the localized hyperthermia for occurring inside computer room because refrigeration system is before stable, or even causes calculator room equipment
Damage.
The water inlet of the water outlet connection cold-storage heat-exchanger 3-1 of cold-accumulating box 3-3, the water outlet connection of cold-storage heat-exchanger 3-1
The water inlet of cold-accumulating box 3-3, cold-storage water pump 3-2 be arranged water outlet in cold-accumulating box 3-3 and cold-storage heat-exchanger 3-1 water inlet it
Between, a closed water-flow circuit is formed between cold-accumulating box 3-3 and cold-storage heat-exchanger 3-1：Chilled water is flowed from cold-accumulating box 3-3
Going out, is sent into cold-storage heat-exchanger 3-1 by cold-storage water pump 3-2, water temperature increases after heat exchange in cold-storage heat-exchanger 3-1,
Water after water temperature increases is flow back into again in cold-accumulating box 3-3.
The refrigerant inlet of cold-storage heat-exchanger 3-1 connects the refrigerant outlet of air-cooled heat exchange unit, cold-storage heat-exchanger 3-1's
Refrigerant outlet connects the entrance of refrigerant compress cell 2.Machine 1 completes temperature raising after refrigeration to refrigerant indoors, passes through storage
Cold heat exchanger 3-1 carries out heat exchange to refrigerant, and refrigerant is made to cool down, and the refrigerant after cooling gets in machine 1, carries out indoor
Refrigeration cool-down.
Specifically, cold-storage heat-exchanger 3-1 includes two heat exchanging part for carrying out heat exchange, respectively the first heat exchanging part and second
Heat exchanging part.Wherein the first heat exchanging part is arranged in water-flow circuit, and the second heat exchanging part is arranged in refrigerant circulation loop, cold-accumulating box
The first heat exchanging part of 3-3 connections simultaneously send chilled water to the first heat exchanging part, and refrigerant compress cell 2 connects the second heat exchanging part and interior
Machine 1, and the refrigerant after the cooling of the second heat exchanging part is transported to indoor unit 1.First heat exchanging part is provided by cold-accumulating box 3-3
Refrigerant in chilled water and the second heat exchanging part carries out heat exchange, and refrigerant is made to cool down；Chilled water after heat exchange is from
One heat exchanging part is flow back into cold-accumulating box 3-3, and the refrigerant after cooling gets in machine 1 by refrigerant compress cell 2, carries out room
Interior refrigeration cool-down.The shape of heat exchanging part can design as needed, usually variously-shaped pipeline.Cold-storage heat-exchanger 3-1's
Form is unlimited, can be plate heat exchanger, can also be the arbitrary forms such as casing, package.
Preferably, refrigerant compress cell 2 includes liquid storage device 2-2 for storing refrigerant and the system being pressurized for refrigerant
Cryogenic fluid pump 2-1, refrigerant are existing common refrigerant.For example, refrigerant is fluorine, refrigerated medium pump 2-1 pumps for fluorine.Liquid storage device
The entrance of 2-2 is separately connected the refrigerant outlet of the refrigerant outlet and cold-storage heat exchange unit 3 of air-cooled heat exchange unit, liquid storage device 2-
The entrance of 2 outlet connection refrigerated medium pump 2-1, the refrigerant inlet of the outlet connection indoor unit 1 of refrigerated medium pump 2-1.By changing
The refrigerant that hot cell carries out after heat exchange cooling can be stored first in liquid storage device 2-2, then be passed by refrigerated medium pump 2-1 superchargings
It is defeated in indoor unit 1, carrying out indoor refrigeration cool-down.
In the present embodiment one, refrigerant circulation loop includes following four operating mode：(1) indoor unit 1, air-cooled heat exchange are single
It is sequentially connected between member, indoor unit 1, forms refrigerant circulation loop.It is specifically evaporator 1-2, compressor 1-3, air-cooled cold
It is sequentially connected between condenser 4, evaporator 1-2, forms refrigerant circulation loop.
(2) between indoor unit 1, air-cooled heat exchange unit, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1 successively
Connection forms refrigerant circulation loop.It is specifically evaporator 1-2, compressor 1-3, air-cooled condenser 4, cold-storage heat-exchanger 3-
1, it is sequentially connected between liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2, forms refrigerant circulation loop.
(3) it is sequentially connected between indoor unit 1, air-cooled heat exchange unit, refrigerant compress cell 2, indoor unit 1, forms refrigeration
Agent circulation loop.It is specifically evaporator 1-2, between air-cooled condenser 4, liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2
It is sequentially connected, forms refrigerant circulation loop.
(4) between indoor unit 1, air-cooled heat exchange unit, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1 successively
Connection forms refrigerant circulation loop.It is specifically evaporator 1-2, air-cooled condenser 4, cold-storage heat-exchanger 3-1, liquid storage device 2-
2, it is sequentially connected between refrigerated medium pump 2-1, evaporator 1-2, forms refrigerant circulation loop.
In the present embodiment, indoor unit wind turbine 1-1, outdoor unit wind turbine 5, cold-storage water pump 3-2 and refrigerated medium pump 2-1 etc. are returned
Dual power supply design is provided, and can automatically switch to stand-by power supply in abnormity of power supply all the way or interruption, to ensure that system supplies
It is electric normal.Specifically, the uninterrupted refrigeration system of the utility model further includes the power supply powered for uninterrupted refrigeration system,
Power supply includes mains supply and stand-by power supply can automatically switch to stand-by power supply, by standby electricity when mains supply disconnects
Source powers, to ensure that system power supply is normal.For example, stand-by power supply can be UPS (Uninterruptible Power
System/Uninterruptible Power Supply), i.e. uninterruptible power supply.
The implementation process of the uninterrupted refrigeration system of the utility model is as follows：Start the refrigeration machine 3-4 of cold-storage heat exchange unit 3
Chilled water is injected to cold-accumulating box 3-3, when outdoor temperature is higher, starts compressor 1-3 refrigeration, and start fortune in compressor 1-3
Row initial stage opens the cold-storage water pump 3-2 of cold-storage heat exchange unit 3, by the chilled water input cold-storage heat-exchanger 3-1 of lower temperature to system
Cryogen carries out cooling down, and starts refrigerated medium pump 2-1 refrigerant after cooling is delivered to indoor unit 1 and freeze, with
Cooling load with data center machine room prevents the localized hyperthermia for occurring inside computer room because refrigeration system is before stable,
Even cause the damage of calculator room equipment；
It can not be freezed using compressor 1-3 in the case where refrigeration system is shut down because of power-off, open cold-storage heat exchange at this time
The chilled water input cold-storage heat-exchanger 3-1 of lower temperature is carried out cooling down by the cold-storage water pump 3-2 of unit 3 to refrigerant, and
Start refrigerated medium pump 2-1, refrigerant after cooling be delivered to indoor unit 1 and is freezed, reaches data center's refrigeration uninterruptedly,
The localized hyperthermia inside computer room is prevented, or even causes the damage of calculator room equipment；
When outdoor temperature is less than certain value, freezing water cold storage is carried out without starting cold-storage heat exchange unit 3, at this time indoor unit
1, air cooling heat exchanger refrigerant after cooling is delivered to interior by air cooling heat exchanger and refrigerated medium pump 2-1 work, refrigerated medium pump 2-1
Machine 1 freezes, and low-temperature receiver provides refrigeration to sustainable utilization for data center machine room naturally, to effectively energy saving.
Embodiment two
As shown in Fig. 2, being the uninterrupted refrigeration system second embodiment of the utility model, the structure of the embodiment two and implementation
Example one the difference is that：The refrigerant outlet of indoor unit 1 is separately connected the refrigerant of air-cooled heat exchange unit by triple valve
The refrigerant inlet of entrance and cold-storage heat exchange unit 3, the refrigeration of the refrigerant outlet and cold-storage heat exchange unit 3 of air-cooled heat exchange unit
Agent exports the entrance for being separately connected refrigerant compress cell 2, the refrigerant of the outlet connection indoor unit 1 of refrigerant compress cell 2
Entrance.
Specifically, the refrigerant outlet of the evaporator 1-2 of indoor unit 1 is separately connected air-cooled heat exchange unit by triple valve
The refrigerant inlet of the refrigerant inlet of refrigerant inlet and cold-storage heat exchange unit 3, evaporator 1-2 connects refrigerant compress cell
2 outlet；The refrigerant outlet of the entrance connection evaporator 1-2 of compressor 1-3, the outlet of compressor 1-3 passes through triple valve point
The refrigerant inlet of the refrigerant inlet and cold-storage heat exchange unit 3 of air-cooled heat exchange unit is not connected.
In the present embodiment two, refrigerant circulation loop includes following four operating mode：(1) indoor unit 1, air-cooled heat exchange are single
It is sequentially connected between member, indoor unit 1, forms refrigerant circulation loop.It is specifically evaporator 1-2, compressor 1-3, air-cooled cold
It is sequentially connected between condenser 4, evaporator 1-2, forms refrigerant circulation loop.
(2) it is sequentially connected between indoor unit 1, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1, forms refrigeration
Agent circulation loop.It is specifically evaporator 1-2, compressor 1-3, cold-storage heat-exchanger 3-1, liquid storage device 2-2, refrigerated medium pump 2-1, steams
It is sequentially connected between hair device 1-2, forms refrigerant circulation loop.
(3) it is sequentially connected between indoor unit 1, air-cooled heat exchange unit, refrigerant compress cell 2, indoor unit 1, forms refrigeration
Agent circulation loop.It is specifically evaporator 1-2, between air-cooled condenser 4, liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2
It is sequentially connected, forms refrigerant circulation loop.
(4) it is sequentially connected between indoor unit 1, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1, forms refrigeration
Agent circulation loop.Specifically for evaporator 1-2, cold-storage heat-exchanger 3-1, liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2 it
Between be sequentially connected, formed refrigerant circulation loop.
The invention also discloses a kind of control methods of uninterrupted refrigeration system, are applied to above-mentioned uninterrupted refrigeration
System.As shown in figure 3, the control method of the uninterrupted refrigeration system of the utility model includes the following steps：
S1, judge whether outdoor temperature is more than preset temperature；Wherein, preset temperature is that actual temp value can be according to reality
Demand is configured, and the utility model does not make this excessive limitation.Outdoor temperature is preferably outdoor dry-bulb temperature.
If S2, outdoor temperature are more than preset temperature, start the compressor 1-3 of indoor unit 1；When outdoor temperature is higher,
Startup compressor 1-3 is needed to freeze, to meet the larger refrigerating capacity requirement of data center machine room.
In S3, the preset time run after compressor 1-3 starts, control cold-storage heat exchange unit 3 provides chilled water to system
Cryogen carries out heat exchange.I.e. within beginning a period of time that compressor 1-3 starts operation, control cold-storage heat exchange unit 3 provides cold
Freeze water and heat exchange is carried out to refrigerant.It should be understood that the preset time can be set according to specific requirements.Specifically,
Compressor 1-3 starts initial operating stage, opens the cold-storage water pump 3-2 of cold-storage heat exchange unit 3, and the chilled water of lower temperature is inputted and is stored
Cold heat exchanger 3-1 carries out cooling down to refrigerant, and starts refrigerated medium pump 2-1 and refrigerant after cooling is delivered to indoor unit
1 freezes, and with the cooling load of matched data central machine room, prevents, because refrigeration system is before stable, computer room occur
Internal localized hyperthermia, or even cause the damage of calculator room equipment.
S4, after preset time, control cold-storage heat exchange unit 3 stops providing chilled water carries out heat exchange to refrigerant.
After refrigeration system is stable, the temperature of computer room various places inside is almost the same, can stop using cold-storage heat exchange unit at this time
3。
Preferably, the control method that the utility model uninterruptedly freezes is further comprising the steps of：
S5, it detects whether to power off；
S6, it exchanges heat if so, starting indoor unit wind turbine 1-1, air-cooled heat exchange unit, cold-storage that stand-by power supply is indoor unit 1
Unit 3 and refrigerant compress cell 2 are powered, and control cold-storage heat exchange unit 3 provides chilled water and carries out heat exchange to refrigerant.It is making
Cooling system can not be freezed in the case of being shut down because of power-off using compressor 1-3, start the indoor unit that stand-by power supply is indoor unit 1
Wind turbine 1-1, air-cooled heat exchange unit, cold-storage heat exchange unit 3 and refrigerant compress cell 2 are powered, and are allowed to maintain operation.Pass through unlatching
The cold-storage water pump 3-2 of cold-storage heat exchange unit 3 cools down to refrigerant the chilled water input cold-storage heat-exchanger 3-1 of lower temperature
It is cooling, and by refrigerated medium pump 2-1, refrigerant after cooling is delivered to indoor unit 1 and is freezed, reach data center's refrigeration
Uninterruptedly, the localized hyperthermia inside computer room is prevented, or even causes the damage of calculator room equipment.
Preferably, the control method that the utility model uninterruptedly freezes is further comprising the steps of：
S7, when outdoor temperature be less than or equal to the preset temperature when, keep cold accumulation system be in stop cold-storage state, lead to
Air-cooled heat exchange unit is crossed to cool down to refrigerant.Specifically, when outdoor temperature is less than certain value, without starting cold-storage heat exchange
Unit 3 carries out freezing water cold storage, at this time indoor unit 1, air cooling heat exchanger and refrigerated medium pump 2-1 work, and refrigerated medium pump 2-1 will be air-cooled
Heat exchanger refrigerant after cooling is delivered to indoor unit 1 and freezes, and low-temperature receiver comes for data center machine room sustainable utilization naturally
Refrigeration is provided, to effectively energy saving.
One preferred embodiment of the control method of the uninterrupted refrigeration system of the utility model is as follows, and wherein preset temperature is 13
℃：
In the case of alternating current does not interrupt, when outdoor dry-bulb temperature Ta≤13 DEG C, this system is not necessarily to cold-storage, using naturally cold
Source provides refrigeration for data center, and the operating mode of refrigerant circulation loop is at this time：Indoor unit 1, air-cooled heat exchange unit, refrigeration
It is sequentially connected between agent compress cell 2, indoor unit 1, forms refrigerant circulation loop, i.e. evaporator 1-2, air-cooled condenser 4, storage
It is sequentially connected between liquid device 2-2, refrigerated medium pump 2-1, evaporator 1-2, forms refrigerant circulation loop.
In the case of alternating current does not interrupt, as 13 DEG C of outdoor dry-bulb temperature Ta ＞, starts compressor 1-3 and freeze, and
Compressor 1-3 starts initial operating stage, opens the cold-storage water pump 3-2 of cold-storage heat exchange unit 3, and the chilled water of lower temperature is inputted and is stored
Cold heat exchanger 3-1 carries out cooling down to refrigerant, and starts refrigerated medium pump 2-1 and refrigerant after cooling is delivered to indoor unit
1 freezes, and the operating mode of refrigerant circulation loop is at this time：Indoor unit 1, air-cooled heat exchange unit, cold-storage heat exchange unit 3,
Be sequentially connected between refrigerant compress cell 2, indoor unit 1, formed refrigerant circulation loop, i.e. evaporator 1-2, compressor 1-3,
It is sequentially connected between air-cooled condenser 4, cold-storage heat-exchanger 3-1, liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2, forms system
Refrigerant cycle circuit (the uninterrupted refrigeration system of corresponding above-described embodiment one)；Alternatively, the operating mode of refrigerant circulation loop
For：It is sequentially connected between indoor unit 1, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1, forms refrigerant circulation and return
Between road, i.e. evaporator 1-2, compressor 1-3, cold-storage heat-exchanger 3-1, liquid storage device 2-2, refrigerated medium pump 2-1, evaporator 1-2 according to
Secondary connection forms refrigerant circulation loop (the uninterrupted refrigeration system of corresponding above-described embodiment two).
In the case of commercial power interruption, start indoor unit wind turbine 1-1, air-cooled heat exchange unit, the cold-storage that stand-by power supply is indoor unit 1
Heat exchange unit 3 and refrigerant compress cell 2 are powered, and are allowed to maintain operation.By the cold-storage water pump 3- for opening cold-storage heat exchange unit 3
The chilled water input cold-storage heat-exchanger 3-1 of lower temperature is carried out cooling down by 2 to refrigerant, and by refrigerated medium pump 2-1, will
Refrigerant after cooling is delivered to indoor unit 1 and freezes, and it is uninterrupted to reach data center's refrigeration.Refrigerant circulation loop at this time
Operating mode be：Between indoor unit 1, air-cooled heat exchange unit, cold-storage heat exchange unit 3, refrigerant compress cell 2, indoor unit 1 according to
Secondary connection forms refrigerant circulation loop, i.e. evaporator 1-2, air-cooled condenser 4, cold-storage heat-exchanger 3-1, liquid storage device 2-2, system
It is sequentially connected between cryogenic fluid pump 2-1, evaporator 1-2, forms refrigerant circulation loop (the uninterrupted system of corresponding above-described embodiment one
Cooling system)；Alternatively, the operating mode of refrigerant circulation loop is：Indoor unit 1, cold-storage heat exchange unit 3, refrigerant compress cell
2, be sequentially connected between indoor unit 1, formed refrigerant circulation loop, i.e. evaporator 1-2, cold-storage heat-exchanger 3-1, liquid storage device 2-2,
It is sequentially connected between refrigerated medium pump 2-1, evaporator 1-2, forms refrigerant circulation loop and (correspond to the uninterrupted of above-described embodiment two
Refrigeration system).
It should be understood that above example only expresses preferred embodiments of the present invention, description is more specific
With it is detailed, but it should not be understood as limiting the scope of the patent of the utility model；It should be pointed out that for this field
Those of ordinary skill for, without departing from the concept of the premise utility, can to above-mentioned technical characterstic carry out freely
Combination, various modifications and improvements can be made, these belong to the scope of protection of the utility model；Therefore, all with this practicality
The equivalents and modification that novel right is done, should all belong to the covering scope of the utility model claims.
Claims (8)
1. a kind of uninterrupted refrigeration system, which is characterized in that including indoor unit (1) and the outdoor being connect with the indoor unit (1)
Machine, the outdoor unit includes heat exchange unit for cooling down refrigerant and the connection indoor unit (1) and heat exchange unit, will be through
Heat exchange unit refrigerant after cooling is transported to the refrigerant compress cell (2) of the indoor unit (1)；The heat exchange unit includes
The air-cooled heat exchange unit of air-cooled heat exchange is carried out to refrigerant and the cold-storage that chilled water carries out refrigerant water cooling heat exchange is provided
Heat exchange unit (3), the air-cooled heat exchange unit and cold-storage heat exchange unit (3) are separately connected the refrigerant compress cell (2).
2. uninterrupted refrigeration system according to claim 1, which is characterized in that the refrigerant outlet of the indoor unit (1)
The refrigerant inlet of the air-cooled heat exchange unit is connected, the refrigerant outlet of the air-cooled heat exchange unit is connected respectively by triple valve
The entrance of the refrigerant inlet and the refrigerant compress cell (2) of the cold-storage heat exchange unit (3) is connect, the cold-storage heat exchange is single
The refrigerant outlet of first (3) connects the entrance of the refrigerant compress cell (2), the outlet of the refrigerant compress cell (2)
Connect the refrigerant inlet of the indoor unit (1).
3. uninterrupted refrigeration system according to claim 1, which is characterized in that the refrigerant outlet of the indoor unit (1)
The refrigerant of the refrigerant inlet and the cold-storage heat exchange unit (3) that are separately connected the air-cooled heat exchange unit by triple valve enters
The refrigerant outlet of mouth, the refrigerant outlet of the air-cooled heat exchange unit and the cold-storage heat exchange unit (3) is separately connected described
The entrance of refrigerant compress cell (2), the outlet of the refrigerant compress cell (2) connect the refrigerant of the indoor unit (1)
Entrance.
4. uninterrupted refrigeration system according to claim 2, which is characterized in that the indoor unit (1) includes evaporator (1-
2), it is the indoor unit wind turbine (1-1) and compressor (1-3) of the evaporator (1-2) air-supply, the refrigeration of the evaporator (1-2)
Agent outlet connects the refrigerant inlet of the air-cooled heat exchange unit, and the outlet of the refrigerant compress cell (2) connects the steaming
Send out the refrigerant inlet of device (1-2)；The entrance of the compressor (1-3) connects the refrigerant outlet of the evaporator (1-2), institute
The outlet for stating compressor (1-3) connects the refrigerant inlet of the air-cooled heat exchange unit；And/or
The air-cooled heat exchange unit includes air-cooled condenser (4) and the outdoor unit wind turbine for the air-cooled condenser (4) air-supply
(5), the refrigerant inlet of the air-cooled condenser (4) connects the refrigerant outlet of the indoor unit (1), the air-cooled condenser
(4) refrigerant outlet connects the entrance of the refrigerant compress cell (2).
5. uninterrupted refrigeration system according to claim 2, which is characterized in that the cold-storage heat exchange unit (3) includes using
In chilled water and refrigerant carry out the cold-storage heat-exchanger (3-1) of heat exchange, for chilled water by water process at the refrigeration of chilled water
Machine (3-4), the cold-accumulating box (3-3) for storing chilled water and for sending the chilled water in the cold-accumulating box (3-3) to institute
State the cold-storage water pump (3-2) of cold-storage heat-exchanger (3-1)；
The refrigerant inlet of the cold-storage heat-exchanger (3-1) connects the refrigerant outlet of the air-cooled heat exchange unit, the cold-storage
The refrigerant outlet of heat exchanger (3-1) connects the entrance of the refrigerant compress cell (2)；
The water outlet of the refrigeration machine (3-4) connects the water inlet of the cold-accumulating box (3-3), the water outlet of the cold-accumulating box (3-3)
Mouth connects the water inlet of the cold-storage heat-exchanger (3-1), and going out at the cold-accumulating box (3-3) is arranged in the cold-storage water pump (3-2)
Between the mouth of a river and the water inlet of the cold-storage heat-exchanger (3-1)；
The water outlet of the cold-storage heat-exchanger (3-1) connects the water inlet of the cold-accumulating box (3-3), the cold-accumulating box (3-3)
Water outlet is also connected with the water inlet of the refrigeration machine (3-4).
6. uninterrupted refrigeration system according to claim 3, which is characterized in that the indoor unit (1) includes evaporator (1-
2), it is the indoor unit wind turbine (1-1) and compressor (1-3) of the evaporator (1-2) air-supply, the refrigeration of the evaporator (1-2)
Agent outlet is separately connected the system of the refrigerant inlet and the cold-storage heat exchange unit (3) of the air-cooled heat exchange unit by triple valve
Cryogen entrance, the refrigerant inlet of the evaporator (1-2) connect the outlet of the refrigerant compress cell (2)；The compression
The entrance of machine (1-3) connects the refrigerant outlet of the evaporator (1-2), and the outlet of the compressor (1-3) passes through triple valve
It is separately connected the refrigerant inlet of the refrigerant inlet and the cold-storage heat exchange unit (3) of the air-cooled heat exchange unit；And/or
The air-cooled heat exchange unit includes air-cooled condenser (4) and the outdoor unit wind turbine for the air-cooled condenser (4) air-supply
(5), the refrigerant inlet of the air-cooled condenser (4) connects the refrigerant outlet of the indoor unit (1), and the air-cooled heat exchange is single
The refrigerant outlet of member connects the entrance of the refrigerant compress cell (2).
7. uninterrupted refrigeration system according to claim 3, which is characterized in that the cold-storage heat exchange unit (3) includes using
In chilled water and refrigerant carry out the cold-storage heat-exchanger (3-1) of heat exchange, for chilled water by water process at the refrigeration of chilled water
Machine (3-4), the cold-accumulating box (3-3) for storing chilled water and for sending the chilled water in the cold-accumulating box (3-3) to institute
State the cold-storage water pump (3-2) of cold-storage heat-exchanger (3-1)；
The refrigerant inlet of the cold-storage heat-exchanger (3-1) connects the refrigerant outlet of the indoor unit (1), the cold-storage heat exchange
The refrigerant outlet of device (3-1) connects the entrance of the refrigerant compress cell (2)；
The water outlet of the refrigeration machine (3-4) connects the water inlet of the cold-accumulating box (3-3), the water outlet of the cold-accumulating box (3-3)
Mouth connects the water inlet of the cold-storage heat-exchanger (3-1), and going out at the cold-accumulating box (3-3) is arranged in the cold-storage water pump (3-2)
Between the mouth of a river and the water inlet of the cold-storage heat-exchanger (3-1)；
The water outlet of the cold-storage heat-exchanger (3-1) connects the water inlet of the cold-accumulating box (3-3), the cold-accumulating box (3-3)
Water outlet is also connected with the water inlet of the refrigeration machine (3-4).
8. according to the uninterrupted refrigeration system of claim 1-7 any one of them, which is characterized in that the refrigerant compress cell
(2) include refrigerated medium pump (2-1) for storing the liquid storage device of refrigerant (2-2) and being pressurized for the refrigerant；The liquid storage
The entrance of device (2-2) is separately connected the refrigeration of the refrigerant outlet and the cold-storage heat exchange unit (3) of the air-cooled heat exchange unit
Agent exports, and the outlet of the liquid storage device (2-2) connects the entrance of the refrigerated medium pump (2-1), and refrigerated medium pump (2-1's) goes out
Mouth connects the refrigerant inlet of the indoor unit (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175257.4U CN207907403U (en) | 2018-02-01 | 2018-02-01 | Uninterrupted refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175257.4U CN207907403U (en) | 2018-02-01 | 2018-02-01 | Uninterrupted refrigeration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444005A (en) * | 2018-02-01 | 2018-08-24 | 深圳市艾特网能技术有限公司 | Uninterrupted refrigeration system and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108444005A (en) * | 2018-02-01 | 2018-08-24 | 深圳市艾特网能技术有限公司 | Uninterrupted refrigeration system and its control method |
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