CN108224631A - A kind of data center meets an urgent need refrigeration system and its control method - Google Patents
A kind of data center meets an urgent need refrigeration system and its control method Download PDFInfo
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- CN108224631A CN108224631A CN201711445793.8A CN201711445793A CN108224631A CN 108224631 A CN108224631 A CN 108224631A CN 201711445793 A CN201711445793 A CN 201711445793A CN 108224631 A CN108224631 A CN 108224631A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
It meets an urgent need refrigeration system and its control method the present invention relates to a kind of data center, the data center of the present invention meets an urgent need, and there is provided can provide the cooling water system of cooling water and can provide the cold accumulation system of chilled water simultaneously for refrigeration system, when outdoor temperature is higher, the cold accumulation system that water temperature can be used lower provides chilled water for water-cooled condenser, to accelerate the cooling velocity of refrigerant, emergent refrigeration is realized；When outdoor temperature is relatively low, cooling water is provided to be cooled down to refrigerant for water-cooled condenser only by cooling water system, refrigeration is provided for data center using low-temperature receiver naturally, it avoids also being continuing with cold accumulation system when temperature is relatively low, so as to effectively energy saving, overcome conventional refrigeration scheme need uninterrupted cold-storage, it is not energy-efficient the shortcomings that.Relative to conventional refrigeration scheme, the present invention realizes chilled water or cooling water and does not enter data center machine room and can be achieved with emergent refrigeration by the way that chilled water or cooling water are arranged on outdoor machine part.
Description
Technical field
The present invention relates to data center's thermal management technology field, meet an urgent need refrigeration more specifically to a kind of data center
System and its control method.
Background technology
The development of data center was very fast in recent years, and developing direction tends to enlargement and modularization, how to reduce hot place
Reason energy consumption is technology development core.Expedited the emergence of in this context it is various using it is naturally cold come reduce heat treatment energy consumption modularization number
According to Point-solution, one of which is evaporating water cooled data center refrigerated medium pump solutions for refrigeration, in energy-saving property and conveniently
Property on can substitute the common water cooled chiller of medium-and-large-sized data center or cooling by wind+interior chilled water end at present
Scheme.
Data center divides safe class, can be tieed up when needing compared with high safety grade and lean against short time power-off and power supply switching
Hold data center's refrigeration, it is ensured that server can effectively radiate, and avoid the machine of delaying.
Traditional water cooled chiller or cooling by wind+interior chilled water end scheme are directed to the number of high safety grade
There is corresponding water storage to meet an urgent need solutions for refrigeration according to center.General approach is to increase a storage cold water tank in cold accumulation system, day frequentation storage
Do not stop to inject chilled water in cold water tank, startup water storage chilled water is met an urgent need refrigeration after host has a power failure.But this traditional refrigeration side
Case needs store up incessantly always it is cold, have it is not energy-efficient the defects of.
Invention content
The technical problem to be solved in the present invention is that, for the drawbacks described above of the prior art, providing a kind of data center should
Anxious refrigeration system and its control method.
The technical solution adopted by the present invention to solve the technical problems is：A kind of data center is constructed to meet an urgent need refrigeration system,
It is characterised in that it includes controller, for detect the outdoor temperature detection device of outdoor temperature, outdoor unit and with the outdoor unit
The indoor unit of connection, the controller connects the outdoor unit and indoor unit respectively, and controls the outdoor according to outdoor temperature
The operating mode of machine and/or indoor unit；
The outdoor unit include for water cycle water system, for refrigerant circulation refrigerant compress cell, with
And the water-cooled condenser of heat exchange is carried out for water-flow circuit and refrigerant circulation loop；
Cooling of the water system including cooling water is connect, provided for the water-cooled condenser with the water-cooled condenser
It water system and is connect with the water-cooled condenser, the cold accumulation system of chilled water, the freezing is provided for the water-cooled condenser
The temperature of water is less than the temperature of the cooling water；
The refrigerant compress cell connects the water-cooled condenser and the indoor unit, and refrigerant is transported to described
Indoor unit；
The outdoor temperature detection device detects outdoor temperature and outdoor temperature information is sent to the controller, described
Controller handles the outdoor temperature information, and controls the cold accumulation system and the cooling water system according to handling result
The working condition of system.
Preferably, the cold accumulation system include for by water process into the cold-storage handpiece Water Chilling Units of chilled water, cold-storage water pump, use
In the cold-storage tank of storage chilled water and for sending the chilled water in the cold-storage tank to the chilled water of the water-cooled condenser
Pump；
The water outlet of the cold-storage handpiece Water Chilling Units connects the water inlet end of the cold-storage tank, the water outlet connection of the cold-storage tank
The water inlet end of the cold-storage handpiece Water Chilling Units, the cold-storage water pump are arranged on the water outlet of the cold-storage handpiece Water Chilling Units and the cold-storage
Between the water inlet end of tank；
The water outlet of the cold-storage tank is also connected with the water inlet end of the water-cooled condenser, the water outlet of the water-cooled condenser
The water inlet end of the cold-storage tank is connected, the chilled water pump is arranged on the water outlet of the cold-storage tank and the water-cooled condenser
Between water inlet end.
Preferably, the cold-storage tank is equipped with automatic drainage valve；The cold accumulation system is further included to be connected with the automatic drainage valve
It the cold-storage controller that connects and is connect with the cold-storage controller, for detecting the inspection of the temperature of the chilled water temperature in the cold-storage tank
Survey device；
The temperature-detecting device detects the chilled water temperature in the cold-storage tank and is sent to chilled water temperature information
The cold-storage controller, the cold-storage controller handle, and judge according to handling result the chilled water temperature information
Whether need that the automatic drainage valve is controlled to open to empty the chilled water in the cold-storage tank.
Preferably, the cold accumulation system further includes the emergence compensating water device to supply water for the cold-storage tank, the emergence compensating water
Between device and the cold-storage handpiece Water Chilling Units it is in parallel after connect with the cold-storage water pump.
Preferably, the cooling water system includes for the cooling tower of cooling water and for the cooling water in cooling tower to be sent
To the cooling water pump of the water-cooled condenser；
The water outlet of the cooling tower connects the water inlet end of the water-cooled condenser, and the water outlet of the water-cooled condenser connects
Connect the water inlet end of the cooling tower, the cooling water pump be arranged on the water outlet of the cooling tower and the water-cooled condenser into
Between water end (W.E.).
Preferably, the cooling water system is equipped with multiple, and the cold accumulation system and multiple cooling water systems are in parallel
Setting；And/or
The water-cooled condenser be equipped with it is multiple, multiple water-cooled condensers are arranged in parallel.
Preferably, the data center meet an urgent need refrigeration system further include for the data center meet an urgent need refrigeration system power supply
Power supply, the power supply include mains supply and stand-by power supply.
The control method for refrigeration system of meeting an urgent need the present invention also provides a kind of data center, applied to above-mentioned data center
Emergent refrigeration system, which is characterized in that include the following steps：
S1, the outdoor temperature of detection and the first preset temperature and the second preset temperature are compared, and judge the room
Outer temperature is in temperature-rise period or temperature-fall period；
S2, when the outdoor temperature be less than or equal to first preset temperature when, control cold accumulation system stop cold-storage；
Start stand-by power supply power supply in the case of commercial power interruption, control cooling water system provides cooling water for water-cooled condenser；
S3, when the outdoor temperature is in temperature-rise period, the outdoor temperature is more than first preset temperature and is less than
Or during equal to second preset temperature, the cold accumulation system is kept to be in and stops cold-storage state；
S4, when the outdoor temperature is more than second preset temperature, the cold accumulation system is controlled to start cold-storage；In city
Electricity starts stand-by power supply power supply in the case of interrupting, the cold accumulation system is controlled to provide chilled water for the water-cooled condenser；
S5, when the outdoor temperature is in temperature-fall period, the outdoor temperature is more than first preset temperature and is less than
Or during equal to second preset temperature, the cold accumulation system is kept to be in the shape for providing chilled water for the water-cooled condenser
State.
Preferably, it in the step S4, after the cold accumulation system is controlled to start cold-storage, further includes：
Judge whether mains supply interrupts, do not interrupted in alternating current and the cold accumulation system is controlled to maintain chilled water temperature
In preset temperature range.
Preferably, the control method further includes：
When the outdoor temperature is less than the temperature of first preset temperature and chilled water less than third preset temperature, institute
It states cold accumulation system and empties its internal chilled water.
The data center for implementing the present invention meets an urgent need refrigeration system and its control method, has the advantages that：The present invention
Data center meet an urgent need refrigeration system while there is provided can provide the cooling water system of cooling water and can provide the storage of chilled water
Cooling system, when outdoor temperature is higher, the cold accumulation system that water temperature can be used lower provides chilled water for water-cooled condenser, to add
The cooling velocity of fast refrigerant realizes emergent refrigeration；It is water-cooled condenser only by cooling water system when outdoor temperature is relatively low
Cooling water is provided to be cooled down to refrigerant, i.e., provides refrigeration for data center using low-temperature receiver naturally, avoids in temperature
Cold accumulation system is also continuing with when relatively low, so as to effectively energy saving.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is that data center of the present invention meets an urgent need the structure diagram of refrigeration system；
Fig. 2 be data center of the present invention meet an urgent need refrigeration system an embodiment partial schematic diagram；
Fig. 3 is that data center shown in Fig. 2 meets an urgent need the detailed construction schematic diagram of refrigeration system；
Fig. 4 is the structure diagram for the refrigerant circulation loop that data center of the present invention meets an urgent need in refrigeration system.
Fig. 5 be data center of the present invention meet an urgent need refrigeration system control method flow chart；
Fig. 6 be data center of the present invention meet an urgent need refrigeration system one embodiment of control method flow diagram.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
The specific embodiment of the present invention.
As shown in Figure 1, the present invention data center meet an urgent need refrigeration system include controller 1, outdoor temperature detection device 2,
Outdoor unit 100 and the indoor unit 200 being connect with outdoor unit 100, controller 1 connect outdoor unit 100 and indoor unit 200 respectively, and
The operating mode of outdoor unit 100 and/or indoor unit 200 is controlled according to outdoor temperature；Outdoor unit 100 is included for the confession of water cycle
Water system 110 is returned for the refrigerant compress cell 130 of refrigerant circulation and for water-flow circuit and refrigerant circulation
Road carries out the water-cooled condenser 120 of heat exchange；Water system 110 includes connecting with water-cooled condenser 120, for water-cooled condenser
120 provide the cooling water system 112 of cooling waters and are connect with water-cooled condenser 120, provide freezing for water-cooled condenser 120
The cold accumulation system 111 of water, the temperature of chilled water are less than the temperature of cooling water, and outdoor temperature detection device 2 detects outdoor temperature simultaneously
Outdoor temperature information is sent to controller 1, controller 1 handles outdoor temperature information, and is controlled according to handling result
The working condition of cold accumulation system and cooling water system；Refrigerant compress cell 130 connects water-cooled condenser 120 and indoor unit 200,
And refrigerant is transported to indoor unit 200.
Wherein, controller 1 controls the process of the working condition of cold accumulation system and cooling water system as follows：Controller 1 is by room
The outdoor temperature that outer temperature-detecting device 2 detects is compared, and judge outdoor with the first preset temperature and the second preset temperature
Temperature is in temperature-rise period or temperature-fall period；When outdoor temperature is less than or equal to the first preset temperature, the control of controller 1 stores
Cooling system stops cold-storage, and starts stand-by power supply power supply in commercial power interruption, and it is water cooling that controller 1, which controls cooling water system,
Condenser provides cooling water；When outdoor temperature is in temperature-rise period, outdoor temperature is more than the first preset temperature and is less than or equal to
During the second preset temperature, controller 1 controls cold accumulation system to keep in stopping cold-storage state；It is preset when outdoor temperature is more than second
During temperature, controller 1 controls cold accumulation system to start cold-storage, starts stand-by power supply power supply in commercial power interruption, controller 1 is controlled
Cold accumulation system processed provides chilled water for water-cooled condenser, and not interrupting controller 1 in alternating current controls cold accumulation system to remain cold
Freeze coolant-temperature gage in preset temperature range；When outdoor temperature is in temperature-fall period, outdoor temperature is more than the first preset temperature and small
When the second preset temperature, controller 1 controls cold accumulation system to keep in the shape for providing chilled water for water-cooled condenser
State.
Specifically, the data center meets an urgent need, refrigeration system includes outdoor and indoor two parts, and wherein outdoor unit 100 is arranged on
Outdoor, indoor unit 200 are set indoors.It is indoor that outdoor unit 100 and indoor unit 200 are connected with each other common complete paired data center
Refrigeration.It is appreciated that outdoor unit 100 contains some or all of device of water-flow circuit and the portion of refrigerant circulation loop
Separating device, the heat exchange between water-flow circuit and refrigerant circulation loop are completed by water-cooled condenser 120.Such as Fig. 1 institutes
Show, water-cooled condenser 120 includes carrying out two heat exchanging part of heat exchange, respectively the first heat exchanging part 121 and the second heat exchanging part
122.In wherein the first heat exchanging part 121 setting water-flow circuit, the second heat exchanging part 122 is arranged in refrigerant-cycle systems, is stored
Cooling system 111 connects the first heat exchanging part 121 and send chilled water to the first heat exchanging part 121, and the connection of cooling water system 112 first is changed
Hot portion 121 simultaneously send cooling water to the first heat exchanging part 121, and refrigerant compress cell 130 connects the second heat exchanging part 122 and indoor unit
200, and the refrigerant after the second heat exchanging part 122 is cooled down is transported to indoor unit 200.First heat exchanging part 121 passes through cooling water system
Refrigerant in chilled water and the second heat exchanging part 122 that the cooling water or cold accumulation system 111 that system 112 provides provide carries out hot friendship
It changes, refrigerant is made to cool down.Refrigerant after cooling gets in machine 200 by refrigerant compress cell 130, completes final room
Interior cooling.The shape of heat exchanging part can design as needed, usually variously-shaped pipeline.The form of water-cooled condenser 120
It is unlimited, it can be plate heat exchanger, can be the arbitrary forms such as casing, package.
As shown in figure 3, cold accumulation system 111 include cold-storage handpiece Water Chilling Units 1111, cold-storage tank 1112, chilled water pump 1113 and
Cold-storage water pump 1114, cold-storage handpiece Water Chilling Units 1111 are used for water process into chilled water, and cold-storage tank 1112 is used to store chilled water, cold
Freeze water pump 1113 to be used to send the chilled water in cold-storage tank 1112 to water-cooled condenser 120, cold-storage water pump 1114 is used for cold-storage
The chilled water of the processing of handpiece Water Chilling Units 1111 is sent into cold-storage tank 1112.Specifically, the water outlet connection of cold-storage handpiece Water Chilling Units 1111
The water inlet end of cold-storage tank 1112, the water inlet end of the water outlet connection cold-storage handpiece Water Chilling Units 1111 of cold-storage tank 1112, cold-storage water pump
1114 are arranged between the water inlet end of the water outlet of cold-storage handpiece Water Chilling Units 1111 and cold-storage tank 1112, cold-storage handpiece Water Chilling Units 1111 with
The circulation loop of a closing is formed between cold-storage tank 1112.When the coolant-temperature gage in cold-storage tank 1112 is higher than preset freezing temperature
When spending, the flow in cold-storage tank 1112 is back to cold-storage handpiece Water Chilling Units 1111 and is processed into satisfactory chilled water, and the chilled water is again
It flows out from cold-storage handpiece Water Chilling Units 1111, is pumped into cold-storage tank 1112 by cold-storage.The temperature of chilled water is relatively low, and cooling effect is more
It is good, when outdoor temperature is higher, chilled water is provided using water cycle of the cold accumulation system 111 for refrigeration system, cooling is more rapidly.
In outdoor lower temperature, for cold-storage tank 1112 under low temperature is avoided to freeze, need to increase cold-storage tank 1112
Antifreezing measures stop cold-storage.Antifreezing measures can include two ways, mode one：It is provided with and is used in 1112 bottom of cold-storage tank
The drain valve of sluicing, when outdoor temperature is less than certain value, personnel sluice, avoid freezing manually；Mode two：Increase automatic control draining mould
Formula, by control system, when outdoor temperature is less than certain value, automatic drainage valve, which is opened, prevents the progress draining of cold-storage tank 1112
Freeze.For mode two, specifically, cold-storage tank 1112 is equipped with automatic drainage valve, cold accumulation system further includes cold-storage controller and temperature
Detection device.Cold-storage controller is connect with automatic drainage valve；Temperature-detecting device is connect with cold-storage controller, for detecting cold-storage
Chilled water temperature in tank 1112.Specifically, temperature-detecting device detects the chilled water temperature in cold-storage tank 1112 and will freezing
Coolant-temperature gage information is sent to cold-storage controller, and cold-storage controller is handled chilled water temperature information, and according to handling result
Judge whether to need that automatic drainage valve is controlled to open to empty the chilled water in cold-storage tank 1112, when outdoor temperature is less than certain value
When, cold-storage controller control automatic drainage valve is opened carries out water-drainage antifreezing to cold-storage tank 1112.For example, temperature-detecting device can be with
For temperature sensor.Similarly, foregoing outdoor temperature sensor can also be temperature sensor.
Further, the water outlet of cold-storage tank 1112 is also connected with the water inlet end of water-cooled condenser 120, and chilled water pump 1113 is set
It puts between the water inlet end of the water outlet of cold-storage tank 1112 and water-cooled condenser 120, the water outlet connection of water-cooled condenser 120 stores
The water inlet end of cold tank 1112 forms the water-flow circuit of a closing between cold-storage tank 1112 and water-cooled condenser 120：Chilled water
It flows out, is sent by chilled water pump 1113 in first heat exchanging part 121 of water-cooled condenser 120 from cold-storage tank 1112, it is cold in water cooling
First heat exchanging part 121 of condenser 120 water temperature after heat exchange increases, and the water after water temperature raising flows back into cold-storage tank 1112 again
In.As shown in figure 3, water inlet end and water outlet in the water-cooled condenser 120 of 100 module of outdoor unit, increase the disengaging of chilled water
Mouthful so that reach refrigerated medium pump 132 there is emergent demand that can input the chilled water of cold accumulation system 111 in water-cooled condenser 120
The effect of refrigeration.As shown in figure 3, cold accumulation system 111 further includes the emergence compensating water device 1115 to supply water for cold-storage tank 1112, meet an urgent need
Between water replanishing device 1115 and cold-storage handpiece Water Chilling Units 1111 it is in parallel after connect with cold-storage water pump 1114.When due to evaporation or micro- letting out
It leaks and causes the water of cold-storage tank 1112 inadequate, it, can be by the emergence compensating water device 1115 to cold-storage when needing emergence compensating water
Tank 1112 carries out moisturizing.Certainly, the emergence compensating water device 1115 or cold-storage tank 1112 provide initial reservoir storage, unlimited
In emergence compensating water.
As shown in figure 3, in refrigeration system is met an urgent need by data center of the invention, cooling water system 112 can include cooling
Tower 1121 and cooling water pump 1122, cooling tower 1121 are used for cooling water, and cooling water pump 1122 is used for will be cold in cooling tower 1121
But water is sent to water-cooled condenser 120.Preferably, the chilled water of the cooling water pump 1122 of cooling water system 112 and cold accumulation system 111
Pump 1113 is same water pump.The water inlet end of the water outlet connection water-cooled condenser 120 of cooling tower 1121, water-cooled condenser 120
Water outlet connection cooling tower 1121 water inlet end, cooling water pump 1122 is arranged on the water outlet of cooling tower 1121 and condensed with water cooling
Between the water inlet end of device 120, the water-flow circuit of a closing is formed between cooling tower 1121 and water-cooled condenser 120：Cooling
Cooling water is sent into water-cooled condenser 120 by tower 1121 by after water cooling by cooling water pump 1122；In water-cooled condenser 120
The first heat exchanging part 121 in, cooling water cools down to the refrigerant in the second heat exchanging part 122 by heat exchange, script it is cold
But water water temperature after heat exchange increases, after and flow back into cooling tower 1121 and cooled down.Refrigerant leads to after cooling
It crosses refrigerant compress cell 130 and gets in machine 200, complete final room temperature lowering.
As shown in Figures 2 and 3, in the embodiment for meeting an urgent need refrigeration system in data center of the present invention, cooling water system 112
Equipped with multiple, cold accumulation system 111 and multiple cooling water systems 112 are arranged in parallel；And/or water-cooled condenser 120 is equipped with more
A, multiple water-cooled condensers 120 are arranged in parallel.It can be jointly to one or more by multiple cooling water systems 112 in parallel
A water-cooled condenser 120 provides cooling water.Can be understood as a cooling water system 112 can be to multiple water-cooled condensers 120
Send water, can also multiple cooling water systems 112 send water to a water-cooled condenser 120.By being arranged in parallel, cooling can be realized
The backup of water system 112 or water-cooled condenser 120 in refrigeration systems reduces the probability of malfunction of whole system.Similarly, one
Cold accumulation system 111 can send water to multiple water-cooled condensers 120, can also cold accumulation system 111 give a water-cooled condenser
120 send water.Preferably, as shown in Fig. 2, the water outlet of cold accumulation system 111 and the water outlet of all cooling water systems 112 pass through
One pipeline 301 connects the water inlet end of all water-cooled condensers 120；The water inlet end of all cooling water systems 112 and cold accumulation system 111
Water inlet end the water outlets of all water-cooled condensers 120 is connected by second pipe 302.
Specifically, as shown in figure 3, the water outlet and 1121 water outlet of multiple cooling towers of cold-storage tank 1112 in parallel with it is multiple
The water inlet end of water-cooled condenser 120 in parallel is connected by an end to end main pipeline, that is, first pipe 301, it is possible to understand that
It is closing for main pipeline, there are several interfaces on main pipeline side wall, the water outlet with cold-storage tank 1112, cooling tower respectively
1121 water outlets are connected with the water inlet end of water-cooled condenser 120.More specific connection mode can be multiple bypass lines, in this way
The water that cold-storage tank 1112 or multiple cooling towers 1121 flow out enters main pipeline, and flowed in main pipeline by bypass line,
Then water-cooled condenser 120 is entered by corresponding bypass line.The water inlet end of multiple cooling towers 1121 being connected in parallel with it is more
The water outlet of the water-cooled condenser 120 of a parallel connection and the water outlet of cold-storage tank 1112 are by an end to end main pipeline
Second pipe 302 connects, it can be understood as main pipeline is closing, there are several interfaces on main pipeline side wall, respectively with storage
Water inlet end, 1121 water inlet end of cooling tower of cold tank 1112 are connected with the water outlet of water-cooled condenser 120.More specific connection mode
Can be multiple bypass lines, the water that water-cooled condensers 120 multiple in this way flow out enters main pipeline, and in master by bypass line
It is flowed in pipeline, cooling tower 1121 or cold-storage tank 1112 is then entered by corresponding bypass line.This connection mode,
The cooling water of the cooling water system 112 of multiple parallel connections shares, and can realize that the cooling water of water-cooled condenser 120 carrys out Source backups,
It realizes backuping each other for cooling water system 112, reduces the probability that whole system breaks down, improve the reliability of system.This
In cooling system and the quantity configuration of water-cooled condenser 120 can carry out reasonable disposition as required, cooling water can be improved
Utilization ratio, improve the reasonable employment of resource.It should be understood that 301 the inside water of first pipe is cold water, using cold water pipe,
302 the inside water of second pipe is hot water, using hot-water line, and is separately positioned on suitable position, convenient using suitable material
Rationally carry out resource distribution.
As shown in figure 4, refrigerant compress cell 130 includes the fluid reservoir 131 for storing refrigerant and increases for refrigerant
The refrigerated medium pump 132 of pressure, refrigerant are existing common refrigerant.For example, refrigerant is fluorine, refrigerated medium pump 132 is pumped for fluorine.
Indoor unit 200 includes evaporator 210 and compressor 220, water-cooled condenser 120, fluid reservoir 131, refrigerated medium pump 132, evaporator
It is sequentially connected between 210 and compressor 220, forms refrigerant circulation loop.Specifically, the refrigerant outlet of evaporator 210 connects
The refrigerant inlet of water receiving cool condenser 120, the entrance of the refrigerant outlet connection fluid reservoir 131 of water-cooled condenser 120, liquid storage
The entrance of the outlet connection refrigerated medium pump 132 of tank 131, the refrigerant inlet of the outlet connection evaporator 210 of refrigerated medium pump 132.
Preferably, outdoor unit 100 further includes device for drying and filtering 133, and device for drying and filtering 133 is arranged on the outlet and steaming of refrigerated medium pump 132
Between the refrigerant inlet for sending out device 210, for removing impurity and steam.
Further, outdoor unit 100 is additionally provided with refrigerated medium pump bypass pipe 140 and compressor bypass pipe 230, refrigerant
Pump bypass 140 is connected in parallel with refrigerated medium pump 132, and compressor bypass pipe 230 is connected in parallel with compressor 220.Specifically, system
The entrance of cryogen pump bypass 140 is connect with the outlet of fluid reservoir 131, outlet and the evaporator 210 of refrigerated medium pump bypass pipe 140
Refrigerant inlet connection, and be provided on refrigerated medium pump bypass pipe 140 bypass check valve 10.Compressor bypass pipe 230 enters
Mouth is connect with the refrigerant outlet of evaporator 210, and the outlet of compressor bypass pipe 230 and the refrigerant of water-cooled condenser 120 enter
Mouth connection, and bypass check valve 10 is provided on refrigerated medium pump bypass pipe 140.
Refrigerant circulation loop can be there are two types of circulation pattern：Compressor power pattern and pump power pattern.Refering to Fig. 4,
Compressor power pattern is：Refrigerant flows into fluid reservoir 131 after the cooling of water-cooled condenser 120, is passed through after being come out from fluid reservoir 131
The evaporator 210 that refrigerated medium pump bypass pipe 140 gets in machine 200 is evaporated refrigeration, out enters from evaporator 210 later
Compressor 220 is cooled down into water-cooled condenser 120 after the compression of compressor 220, forms cycle.
Pump power pattern is：Refrigerant flows into fluid reservoir 131 after the cooling of water-cooled condenser 120, is come out from fluid reservoir 131
The evaporator 210 that machine 200 is got in by the supercharging of refrigerated medium pump 132 is evaporated refrigeration, out logical from evaporator 210 later
Overcompression machine bypass pipe 230 is cooled down into water-cooled condenser 120, forms cycle.Under pump power pattern, compressor 220
It does not work, compressor 220 is used as a partition apparatus at this time, and the refrigerant come out by evaporator 210 will not pass through compressor
220, it can only pass through from compressor bypass pipe 230, then the water-cooled condenser 120 to outside is exchanged heat, cooled down.
Data center of the present invention meets an urgent need in refrigeration system the preferred embodiment of the present invention, returns cooling tower 1121, cooling water
Pump 1122, cold-storage water pump 1114, cold-storage handpiece Water Chilling Units 1111 and refrigerated medium pump 132,200 wind turbine of indoor unit etc. provide double
Power Management Design, and stand-by power supply can be automatically switched in abnormity of power supply all the way or interruption, to ensure that system power supply is normal.Tool
Body, data center meet an urgent need refrigeration system further include for data center meet an urgent need refrigeration system power supply power supply, power supply
Including mains supply and stand-by power supply, when mains supply disconnects, stand-by power supply can be automatically switched to, is powered by stand-by power supply,
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).
Data center of the present invention meet an urgent need refrigeration system implementation process it is as follows：When outdoor temperature is higher, start cold-storage system
The cold-storage handpiece Water Chilling Units 1111 of system 111 inject cold-storage tank 1112 chilled water and maintain the cold water of cold-storage tank 1112 in the temperature of setting
Range being spent, when can not freeze at this time using compressor 220 under the abnormal conditions such as data center's commercial power interruption, opening cold accumulation system
111 chilled water pump 1113, by heat exchanger, that is, water-cooled condenser 120 of chilled water input refrigerant-water of lower temperature, and
Start refrigerated medium pump 132, refrigerant after cooling is delivered to indoor unit 200 and is freezed, between reaching data center's refrigeration not
It is disconnected, realize emergent refrigeration.When outdoor temperature is less than certain value, freezing water cold storage is carried out without starting cold accumulation system 111, works as number
According under the abnormal conditions such as center commercial power interruption, the cooling tower 1121 of smaller power, cooling are continued as by dual power supply control switching
200 continued power of water pump 1122, refrigerated medium pump 132 and indoor unit opens the cooling water pump 1122 of cooling water system 112, will be cold
But the cooling water input water-cooled condenser 120 in tower 1121, and start refrigerated medium pump 132, refrigerant after cooling is delivered to
Indoor unit 200 freezes, and low-temperature receiver for data center provides emergent refrigeration to sustainable utilization naturally, reaches data center's refrigeration
Uninterruptedly, cold accumulation system 111 will be also continuing with when temperature is relatively low by, which avoiding, meets an urgent need, so as to effectively energy saving.
The control method for refrigeration system of meeting an urgent need the invention also discloses a kind of data center, applied to above-mentioned data center
Emergent refrigeration system.As shown in figure 5, the control method includes the following steps：
S1, the outdoor temperature of detection and the first preset temperature and the second preset temperature are compared, and judge outdoor temp
Degree is in temperature-rise period or temperature-fall period.Refrigeration system is met an urgent need in lower temperature by data center of the present invention, needs to stop
Only cold-storage, but since outdoor temperature is dynamic change, and may be the cyclic process of continuous heating, cooling, in order to avoid
The variation of temperature brings the frequent start-stop of cold accumulation system, this outdoor temperature switching point is needed there are one temperature return difference is controlled, specifically
Control is with reference to step S3 and S5.
S2, when outdoor temperature be less than or equal to the first preset temperature when, control cold accumulation system 111 stop cold-storage；In alternating current
Start stand-by power supply power supply in the case of interruption, control cooling water system 112 provides cooling water for water-cooled condenser 120.
S3, temperature-rise period is in when outdoor temperature, outdoor temperature is more than the first preset temperature and pre- less than or equal to second
If during temperature, cold accumulation system 111 is kept to be in and stops cold-storage state.
S4, when outdoor temperature be more than the second preset temperature when, control cold accumulation system 111 start cold-storage；In commercial power interruption feelings
Start stand-by power supply power supply under condition, control cold accumulation system 111 provides chilled water for water-cooled condenser 120.Preferably, in step S4
In, after control cold accumulation system 111 starts cold-storage, further include：Judge whether mains supply interrupts, do not interrupt and control in alternating current
Cold accumulation system 111 processed maintains chilled water temperature in preset temperature range.
S5, temperature-fall period is in when outdoor temperature, outdoor temperature is more than the first preset temperature and pre- less than or equal to second
If during temperature, cold accumulation system 111 is kept to be in the state for providing chilled water for water-cooled condenser 120.
Preferably, which further includes：When the temperature that outdoor temperature is less than the first preset temperature and chilled water is less than
During third preset temperature, cold accumulation system 111 empties its internal chilled water.It specifically, can be by by the storage of cold accumulation system 111
The drain valve of cold tank 1112 is opened, so as to which the water in cold-storage tank 1112 be emptied, with antifreeze.
Specifically, when outdoor temperature is less than or equal to the first preset temperature, no matter outdoor temperature is in temperature-rise period also
It is temperature-fall period, cold accumulation system 111 is controlled to stop cold-storage, and starting stand-by power supply power supply, control in commercial power interruption
Cooling water system 112 processed provides cooling water for water-cooled condenser 120, i.e., is only supplied by cooling water system 112 for water-cooled condenser 120
Water.When outdoor temperature is less than the temperature of the first preset temperature and chilled water less than third preset temperature, in order to antifreeze, then control
Cold accumulation system 111 empties its internal chilled water.When outdoor temperature is in temperature-rise period, outdoor temperature is more than the first preset temperature
And during less than or equal to the second preset temperature, cold accumulation system 111 is kept to be in and stops cold-storage state, still by cooling water system
112 supply water for water-cooled condenser 120.When outdoor temperature is more than the second preset temperature, no matter outdoor temperature is in temperature-rise period
Or temperature-fall period controls cold accumulation system 111 to start cold-storage, starts stand-by power supply power supply, control in commercial power interruption
Cold accumulation system 111 provides chilled water for water-cooled condenser 120；Control cold accumulation system 111 is not interrupted in alternating current remains cold
Freeze coolant-temperature gage in preset temperature range.When outdoor temperature is in temperature-fall period, outdoor temperature is more than the first preset temperature and small
When the second preset temperature, cold accumulation system 111 is kept to be in the state for providing chilled water for water-cooled condenser 120, i.e.,
Still it is supplied water by cold accumulation system 111 for water-cooled condenser 120.
It should be understood that described " cold-storage " refers to that cold accumulation system 111 into chilled water and stores up water process herein
It deposits.The actual temp value of the preset temperature of " the first preset temperature ", " the second preset temperature ", " third preset temperature " and chilled water
It can be configured according to actual demand, the present invention does not make this excessive limitation.
Data center of the present invention meet an urgent need refrigeration system control method a preferred embodiment as shown in fig. 6, wherein first
Preset temperature is a, the second preset temperature is b, third preset temperature is 3：Inside outdoor temperature Ta≤a and water tank 1112
It during water storage water temperature T b≤3, needs to consider the antifreeze problem of water tank 1112, cold-storage controller can be passed through and control automatic drainage valve
It opens, to carry out evacuation and anti-freezing to cold-storage tank 1112；When outdoor temperature decline process, Ta≤b, cold accumulation system 111 stops storing
Cold, when having emergent refrigeration demand at this time (i.e. commercial power interruption), dual power supply switching starts, indoor fan continued power, cooling tower
1121 wind turbine continued powers, 1122 continued power of cooling water pump, 132 continued power of refrigerated medium pump simultaneously start refrigerated medium pump 132 and make
It is cold to meet emergent refrigeration demand.Work as temperature ramp de, during Ta ＞ b+5, cold accumulation system 111 starts cold-storage, has at this time emergent
During cold-storage demand (commercial power interruption), dual power supply switching starts, indoor fan continued power, and 1121 wind turbine of cooling tower stops supplying
Electricity, 1113 continued power of chilled water pump, 132 continued power of refrigerated medium pump and 111 continued power of cold accumulation system, and chilled water pump
1113 open and input cold-storage water in water-cooled condenser 120, start refrigerated medium pump 132 and freeze to meet emergent refrigeration demand；
If at this time without emergent refrigeration demand, cold accumulation system 111 starts automatically controls the water temperature in cold-storage tank 1112 in setting range 7~12
℃。
In conclusion the data center of the present invention meets an urgent need, refrigeration system is provided with simultaneously can provide the cooling water system of cooling water
System 112 and the cold accumulation system 111 that can provide chilled water when outdoor temperature is higher, can use the lower cold-storage system of water temperature
System 111 provides chilled water for water-cooled condenser 120, to accelerate the cooling velocity of refrigerant, realizes emergent refrigeration；In outdoor temperature
When relatively low, cooling water only is provided to be cooled down to refrigerant for water-cooled condenser 120 by cooling water system 112, that is, is utilized
Naturally low-temperature receiver provides refrigeration for data center, avoids also being continuing with cold accumulation system 111 when temperature is relatively low, so as to have
Imitate it is energy saving, overcome conventional refrigeration scheme need uninterrupted cold-storage, it is not energy-efficient the shortcomings that.Relative to conventional refrigeration scheme, sheet
Invention realizes chilled water or cooling water and does not enter data center's machine by the way that chilled water or cooling water are arranged on outdoor machine part
Room can be achieved with emergent refrigeration.
It should be understood that above example only expresses the preferred embodiment of the present invention, description is more specific and detailed
Carefully, but can not the limitation to the scope of the claims of the present invention therefore be interpreted as；It should be pointed out that the common skill for this field
For art personnel, without departing from the inventive concept of the premise, above-mentioned technical characterstic can be freely combined, can also done
Go out several modifications and improvements, these belong to protection scope of the present invention；Therefore, it is all to be done with scope of the invention as claimed
Equivalents and modification, should all belong to the covering scope of the claims in the present invention.
Claims (10)
- The refrigeration system 1. a kind of data center meets an urgent need, which is characterized in that including controller (1), the room for detecting outdoor temperature Outer temperature-detecting device (2), outdoor unit (100) and the indoor unit (200) being connect with the outdoor unit (100), the controller (1) connect the outdoor unit (100) and indoor unit (200) respectively, and according to outdoor temperature control the outdoor unit (100) and/ Or the operating mode of indoor unit (200)；The outdoor unit (100) is including being used for the water system (110) of water cycle, being pressurized list for the refrigerant of refrigerant circulation First (130) and the water-cooled condenser (120) that heat exchange is carried out for water-flow circuit and refrigerant circulation loop；The water system (110) provides including being connect with the water-cooled condenser (120), for the water-cooled condenser (120) It the cooling water system (112) of cooling water and connect with the water-cooled condenser (120), carry for the water-cooled condenser (120) For the cold accumulation system (111) of chilled water, the temperature of the chilled water is less than the temperature of the cooling water；The refrigerant compress cell (130) connects the water-cooled condenser (120) and the indoor unit (200), and will refrigeration Agent is transported to the indoor unit (200)；The outdoor temperature detection device (2) detects outdoor temperature and outdoor temperature information is sent to the controller (1), institute It states controller (1) to handle the outdoor temperature information, and the cold accumulation system (111) and institute is controlled according to handling result State the working condition of cooling water system (112).
- The refrigeration system 2. data center according to claim 1 meets an urgent need, which is characterized in that cold accumulation system (111) packet Include for by water process into the cold-storage handpiece Water Chilling Units (1111) of chilled water, cold-storage water pump (1114), the storage for storing chilled water Cold tank (1112) and for sending the chilled water in the cold-storage tank (1112) to the chilled water of the water-cooled condenser (120) It pumps (1113)；The water outlet of the cold-storage handpiece Water Chilling Units (1111) connects the water inlet end of the cold-storage tank (1112), the cold-storage tank (1112) water outlet connects the water inlet end of the cold-storage handpiece Water Chilling Units (1111), and the cold-storage water pump (1114) is arranged on described Between the water outlet of cold-storage handpiece Water Chilling Units (1111) and the water inlet end of the cold-storage tank (1112)；The water outlet of the cold-storage tank (1112) is also connected with the water inlet end of the water-cooled condenser (120), the water-cooled condenser (120) water outlet connects the water inlet end of the cold-storage tank (1112), and the chilled water pump (1113) is arranged on the cold-storage tank (1112) between water outlet and the water inlet end of the water-cooled condenser (120).
- The refrigeration system 3. data center according to claim 2 meets an urgent need, which is characterized in that the cold-storage tank (1112) is equipped with Automatic drainage valve；The cold accumulation system (111) further include the cold-storage controller that is connect with the automatic drainage valve and with the storage Cold control connection, the temperature-detecting device for detecting the chilled water temperature in the cold-storage tank (1112)；The temperature-detecting device detects the chilled water temperature in the cold-storage tank (1112) and sends chilled water temperature information To the cold-storage controller, the cold-storage controller handles, and sentence according to handling result the chilled water temperature information It is disconnected whether to need that the automatic drainage valve is controlled to open to empty the chilled water in the cold-storage tank (1112).
- The refrigeration system 4. data center according to claim 2 meets an urgent need, which is characterized in that the cold accumulation system (111) is also Including the emergence compensating water device (1115) to supply water for the cold-storage tank (1112), the emergence compensating water device (1115) and the storage It is connect after parallel connection with the cold-storage water pump (1114) between cold handpiece Water Chilling Units (1111).
- The refrigeration system 5. data center according to claim 1 meets an urgent need, which is characterized in that the cooling water system (112) Including being used for the cooling tower (1121) of cooling water and for sending the cooling water in cooling tower (1121) to the water-cooled condenser (120) cooling water pump (1122)；The water outlet of the cooling tower (1121) connects the water inlet end of the water-cooled condenser (120), the water-cooled condenser (120) water outlet connects the water inlet end of the cooling tower (1121), and the cooling water pump (1122) is arranged on the cooling tower (1121) between water outlet and the water inlet end of the water-cooled condenser (120).
- 6. met an urgent need refrigeration system according to claim 1-5 any one of them data center, which is characterized in that the cooling water system (112) are united equipped with multiple, the cold accumulation system (111) and multiple cooling water systems (112) are arranged in parallel；And/orEquipped with multiple, multiple water-cooled condensers (120) are arranged in parallel the water-cooled condenser (120).
- The refrigeration system 7. data center according to claim 1 meets an urgent need, which is characterized in that further include as the data center The power supply of emergent refrigeration system power supply, the power supply include mains supply and stand-by power supply.
- The control method of refrigeration system 8. a kind of data center meets an urgent need, applied in claim 1-7 any one of them data The heart is met an urgent need refrigeration system, which is characterized in that is included the following steps：S1, the outdoor temperature of detection and the first preset temperature and the second preset temperature are compared, and judge the outdoor temp Degree is in temperature-rise period or temperature-fall period；S2, when the outdoor temperature be less than or equal to first preset temperature when, control cold accumulation system stop cold-storage；In alternating current Start stand-by power supply power supply in the case of interruption, control cooling water system provides cooling water for water-cooled condenser；S3, when the outdoor temperature is in temperature-rise period, the outdoor temperature is more than first preset temperature and is less than or waits When second preset temperature, the cold accumulation system is kept to be in and stops cold-storage state；S4, when the outdoor temperature is more than second preset temperature, the cold accumulation system is controlled to start cold-storage；In alternating current Start stand-by power supply power supply in the case of disconnected, the cold accumulation system is controlled to provide chilled water for the water-cooled condenser；S5, when the outdoor temperature is in temperature-fall period, the outdoor temperature is more than first preset temperature and is less than or waits When second preset temperature, the cold accumulation system is kept to be in the state for providing chilled water for the water-cooled condenser.
- 9. control method according to claim 8, which is characterized in that in the step S4, control the cold accumulation system After starting cold-storage, further include：Judge whether mains supply interrupts, do not interrupted in alternating current and the cold accumulation system is controlled to maintain chilled water temperature pre- If in temperature range.
- 10. control method according to claim 8 or claim 9, which is characterized in that further include：When the outdoor temperature is less than the temperature of first preset temperature and chilled water less than third preset temperature, the storage Cooling system empties its internal chilled water.
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