CN107024063A - A kind of United system and its control method - Google Patents
A kind of United system and its control method Download PDFInfo
- Publication number
- CN107024063A CN107024063A CN201710251798.0A CN201710251798A CN107024063A CN 107024063 A CN107024063 A CN 107024063A CN 201710251798 A CN201710251798 A CN 201710251798A CN 107024063 A CN107024063 A CN 107024063A
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- Prior art keywords
- water
- cooling
- pipe
- cold
- storage container
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
- F25D13/02—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems
- F25D13/04—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems the compartments being at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- 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
Abstract
The invention discloses a kind of United system, including refrigeration unit, cooling tower, first heat exchanger, High Temperature Refrigeratory Cold water supply pipe, High Temperature Refrigeratory hot water return pipe, low-temperature cold store medium supply pipe, low-temperature cold store medium back flow pipe, cooling medium efferent duct and cooling medium return duct；Refrigeration unit includes the evaporator being sequentially connected with, compressor, condenser and expansion valve；Cooling tower includes is provided with cooling pump on cooling tower feed pipe and cooling tower return pipe, cooling tower feed pipe；Cooling tower feed pipe and cooling tower return pipe are connected with condenser respectively；Cooling medium efferent duct and the connection of cooling medium return duct are between first heat exchanger and evaporator；High Temperature Refrigeratory Cold water supply pipe and High Temperature Refrigeratory hot water return pipe are connected with first heat exchanger respectively；Low-temperature cold store medium supply pipe is connected with cooling medium efferent duct, and low-temperature cold store medium back flow pipe is connected with cooling medium return duct.The invention also discloses a kind of control method of United system.
Description
Technical field
The present invention relates to freezer cooling technical field, more particularly to a kind of United system and its control method.
Background technology
Freezer is the refrigeration or freezer for storage article, in the prior art, typically by freezer be divided into High Temperature Refrigeratory and
Low-temperature cold store.The temperature of High Temperature Refrigeratory is general more than 0 DEG C, and for storing vegetable and fruit etc., the temperature of low-temperature cold store is general 0
Below DEG C, for storing meat etc..
In the prior art, the High Temperature Refrigeratory cooling special equipment different from low-temperature cold store cooling needs, it is impossible to realize connection
Cooling is closed, it is necessary to configure two sets of cold supply systems, space-consuming when thus causing at the same time with low-temperature cold store and High Temperature Refrigeratory
Greatly, complicated, cost is high.
The content of the invention
It is an object of the invention to overcome defect of the prior art can be simultaneously to low-temperature cold store and high temperature there is provided one kind
Freezer cooling, and the United system and its controlling party of cooling also can be individually distinguished High Temperature Refrigeratory and low-temperature cold store
Method.
Technical solution of the present invention provides a kind of United system, including refrigeration unit, cooling tower, first heat exchanger,
High Temperature Refrigeratory Cold water supply pipe, High Temperature Refrigeratory hot water return pipe, low-temperature cold store medium supply pipe, low-temperature cold store medium back flow pipe,
Cooling medium efferent duct and cooling medium return duct；The refrigeration unit includes the evaporator being sequentially connected with, compressor, condensation
Device and expansion valve；The cooling tower includes to be set on cooling tower feed pipe and cooling tower return pipe, the cooling tower feed pipe
There is cooling pump；The cooling tower feed pipe and the cooling tower return pipe are connected with the condenser respectively；The cooling medium
Efferent duct and cooling medium return duct connection are between the first heat exchanger and the evaporator；The High Temperature Refrigeratory
Cold water supply pipe and High Temperature Refrigeratory hot water return pipe are connected with the first heat exchanger respectively；The low-temperature cold store medium supply
Pipe is connected with the cooling medium efferent duct, and the low-temperature cold store medium back flow pipe is connected with the cooling medium return duct.
Further, the United system also includes water cold accumulation device；The water cold accumulation device includes retaining appearance
Water storage container the first cooling pipe and the return pipe of water storage container first are provided with device, the water storage container；The water storage container
One cooling pipe and the return pipe of the water storage container first are connected with the condenser respectively.
Further, water storage container the second cooling pipe and the return pipe of water storage container second are provided with the water storage container；
Water storage container the second cooling pipe is connected with the High Temperature Refrigeratory Cold water supply pipe, the return pipe of water storage container second and institute
State the connection of High Temperature Refrigeratory hot water return pipe.
Further, upper water distributor and the lower water distribution below the upper water distributor are provided with the water storage container
Device；The return pipe of water storage container first and the water storage container second return pipe is connected with the upper water distributor respectively, described
Water storage container the first cooling pipe and the second cooling of water storage container pipe are connected with the lower water-dispensing device respectively；Hold in the retaining
Second heat exchanger is additionally provided with device, heat exchanger is connected between the second heat exchanger and the cooling medium efferent duct
Medium supply pipe, heat exchanger media return duct is provided between the second heat exchanger and the cooling medium return duct.
Further, the first feed pipe is additionally provided with the lower water-dispensing device, is provided with first feed pipe
Water pump, water storage container the first cooling pipe and the second cooling of water storage container pipe connect with the delivery port of the water pump respectively
Connect；The second feed pipe is also communicated between the water inlet and the upper water distributor of the water pump；In the delivery port of the water pump
The 3rd feed pipe is additionally provided between the lower water-dispensing device；The first control valve, described are provided with first feed pipe
It is provided with two feed pipes on the second control valve, the 3rd feed pipe and is provided with the 3rd control valve.
Further, also connected between the upper water distributor and the delivery port of the water pump by the 4th feed pipe, it is described
The 4th control valve is provided with 4th feed pipe.
Further, the second heat exchanger is located between the upper water distributor and the lower water-dispensing device, and close to institute
State lower water-dispensing device side.
Further, multiple temperature sensors are provided with the water storage container.
Technical solution of the present invention also provides a kind of control method of United system, comprises the following steps：Refrigeration unit
Individually to low-temperature cold store cooling：Cooling medium enters in low-temperature cold store through cooling medium efferent duct, low-temperature cold store medium supply pipe
Heat exchange is carried out, the cooling medium that heat exchange is completed returns to steaming through low-temperature cold store medium back flow pipe, cooling medium return duct
Send out and cooling down is carried out in device, the cooling medium of cooling down is exported to cooling medium efferent duct recycled afterwards；
Refrigeration unit is individually to High Temperature Refrigeratory cooling：Cooling medium enters in first heat exchanger through cooling medium efferent duct carries out heat
Exchange, the cooling medium that heat exchange is completed is returned to through cooling medium return duct carries out cooling down in evaporator, afterwards will drop
The cooling medium of temperature cooling, which is exported to cooling medium efferent duct, to be recycled；Cold water enters through High Temperature Refrigeratory Cold water supply pipe
The hot water for carrying out being formed after heat exchange, heat exchange in High Temperature Refrigeratory enters the first heat exchange through High Temperature Refrigeratory hot water return pipe
Cooling down is carried out in device, the cold water of cooling down formation exports High Temperature Refrigeratory Cold water supply pipe and recycled again；System
Cold group is simultaneously to High Temperature Refrigeratory and low-temperature cold store cooling：A part of cooling medium enters low-temperature cold store through cooling medium efferent duct
Supply is to low-temperature cold store in medium supply pipe, and another part cooling medium enters in first heat exchanger through cooling medium efferent duct
Cooling down is carried out to hot water.
Further, also comprise the following steps, water cold accumulation device cold-storage：In water cold accumulation device cold-storage, cooling tower is kept
Supplied water to condenser, refrigeration unit work；Cooling medium enters the second heat through cooling medium efferent duct, heat exchanger media supply pipe
Heat exchange is carried out in exchanger, the cooling medium of heat exchange is completed through heat exchanger media return duct, cooling medium return duct
Return to and cooling down is carried out in evaporator, the cooling medium of cooling down is exported to cooling medium efferent duct circulated afterwards
Utilize.
Further, also comprise the following steps, water cold accumulation device is let cool：Cold water in water storage container is through water storage container first
Cooling pipe supplies to condenser and carries out heat exchange, and the hot water that heat exchange is produced returns to retaining through the return pipe of water storage container first
In container.
Further, wherein, when the water cold accumulation device is let cool, refrigeration unit holding work, cooling tower are stopped.
Further, also comprise the following steps, water cold accumulation device is let cool：
Cold water in water storage container is supplied to High Temperature Refrigeratory Cold water supply pipe through water storage container the second cooling pipe, cold in high temperature
The hot water that heat exchange is produced in storehouse is returned in water storage container through High Temperature Refrigeratory hot water return pipe, the return pipe of water storage container second.
Further, wherein, when the water cold accumulation device is let cool, refrigeration unit and cooling tower are all stopped.
Further, in water cold accumulation device cold-storage：If the temperature of the water at upper water distributor exceedes preset temperature, adopt
Upper water distributor draining is used, the mode of lower water-dispensing device water inlet carries out cold-storage；If the temperature of the water at upper water distributor is less than or equal to
Preset temperature, then using lower water-dispensing device draining, the mode of upper water distributor water inlet carries out cold-storage.
Further, upper water distributor draining is being used, when the mode of lower water-dispensing device water inlet carries out cold-storage：In the effect of water pump
Under, the water of water storage container inner top enters in water storage container through the second feed pipe, the 3rd feed pipe and lower water-dispensing device, so as to keep
So that being more than the density before heat exchange into the density of the water in water storage container after the heat exchange；Using lower water-dispensing device
Draining, when the mode of upper water distributor water inlet carries out cold-storage：In the presence of water pump, the water of water storage container inner bottom part supplies water through first
Pipe, the 4th feed pipe and upper water distributor enter in water storage container, so as to keep causing the water entered in water storage container in heat exchange
Density afterwards is less than the density before heat exchange.
Further, in cold-storage, cooling medium of the delivery temperature below 0 DEG C into heat exchanger media supply pipe；Institute
Can finally be reached by stating the water in water storage container by 0 DEG C.
Using above-mentioned technical proposal, have the advantages that：
First heat exchanger is connected with evaporator by cooling medium efferent duct and cooling medium return duct, high temperature is cold
Storehouse Cold water supply pipe and High Temperature Refrigeratory hot water return pipe are connected with first heat exchanger, by low-temperature cold store medium supply pipe and low temperature
Freezer medium back flow pipe is connected with cooling medium efferent duct and cooling medium return duct respectively, thus realize can simultaneously to low temperature
Freezer and High Temperature Refrigeratory cooling, and also cooling individually can be distinguished to High Temperature Refrigeratory and low-temperature cold store.
Cold water is supplied to condenser by setting water cold accumulation device, and by water cold accumulation device, can be reduced at condenser
Condensation temperature, reduce the compression ratio of compressor, save electric energy.
By setting water cold accumulation device, can in low power consumption cold-storage, it is direct by water cold accumulation device during peak of power consumption
Cold water is supplied to High Temperature Refrigeratory, now refrigeration unit and cooling pump are stopped, can be with power cost saving, and reduce cost.
Brief description of the drawings
The structural representation for the United system that Fig. 1 provides for the present invention；
Fig. 2 is the partial schematic diagram of United system；
Fig. 3 is the structural representation of water cold accumulation device；
Fig. 4 is signal of the water cold accumulation device when carrying out cold-storage by the way of upper water distributor draining, lower water-dispensing device water inlet
Figure；
Fig. 5 is signal of the water cold accumulation device when carrying out cold-storage by the way of lower water-dispensing device draining, upper water distributor water inlet
Figure.
The reference table of comparisons：
1- refrigeration units；11- evaporators；111- inlets；
112- liquid outlets；12- compressors；13- condensers；
131- water inlets；132- delivery ports；14- expansion valves；
15- pipelines；16- cooling medium efferent ducts；17- cooling medium return ducts；
2- cooling towers；21- cooling tower feed pipes；22- cooling tower return pipes；
23- cooling pumps；3- first heat exchangers；4- water cold accumulation devices；
40- water storage containers；401- upper water distributors；402- lower water-dispensing devices；
403- temperature sensors；41- water storage containers the first cooling pipe；The return pipe of 42- water storage containers first；
43- water storage containers the second cooling pipe；The return pipe of 44- water storage containers second；The feed pipes of 45- first；
The control valves of 451- first；The feed pipes of 46- second；The control valves of 461- second；
The feed pipes of 47- the 3rd；The control valves of 471- the 3rd；The feed pipes of 48- the 4th；
The control valves of 481- the 4th；5- second heat exchangers；51- heat exchanger media supply pipes；
52- heat exchanger media return ducts；53- control valves；6- water pumps；
61- water inlets；62- delivery ports；7- liquid pumps；
8- water pumps；100- High Temperature Refrigeratory Cold water supply pipes；200- High Temperature Refrigeratory hot water return pipes；
300- low-temperature cold store medium supply pipes；400- low-temperature cold store medium back flow pipes.
Embodiment
Below in conjunction with the accompanying drawings come further illustrate the present invention embodiment.Wherein identical parts identical
Reference is represented.It should be noted that the word "front", "rear", "left", "right", the "up" and "down" that are used below in description
The direction in accompanying drawing is referred to, word " interior " and " outer " are referred respectively to towards or away from the direction of particular elements geometric center.
The High Temperature Refrigeratory being previously mentioned in the present invention is freezer of the temperature more than 0 DEG C, and low-temperature cold store is temperature below 0 DEG C
Freezer.
As shown in Figure 1-2, a kind of United system that one embodiment of the invention is provided, including refrigeration unit 1, cooling tower
2nd, first heat exchanger 3, High Temperature Refrigeratory Cold water supply pipe 100, High Temperature Refrigeratory hot water return pipe 200, the supply of low-temperature cold store medium
Pipe 300, low-temperature cold store medium back flow pipe 400, cooling medium efferent duct 16 and cooling medium return duct 17.
Refrigeration unit 1 includes the evaporator 11 being sequentially connected with, compressor 12, condenser 13 and expansion valve 14.
Cooling tower 2 include be provided with cooling tower feed pipe 21 and cooling tower return pipe 22, cooling tower feed pipe 21 it is cold
But pump 23.
Cooling tower feed pipe 21 and cooling tower return pipe 22 are connected 13 with condenser respectively.
Cooling medium efferent duct 16 and cooling medium return duct 17 are connected between first heat exchanger 3 and evaporator 11.
High Temperature Refrigeratory Cold water supply pipe 100 and High Temperature Refrigeratory hot water return pipe 200 are connected with first heat exchanger 3 respectively,
Low-temperature cold store medium supply pipe 300 is connected with cooling medium efferent duct 16, and low-temperature cold store medium back flow pipe 400 is returned with cooling medium
Flow tube 17 is connected.
The United system that the present invention is provided, can be supplied by High Temperature Refrigeratory Cold water supply pipe 100 into High Temperature Refrigeratory
Give cold water to carry out cooling, less than 0 DEG C of cooling Jie can also supply into low-temperature cold store by low-temperature cold store medium supply pipe 300
Matter carries out cooling, meets air conditioning demand.
High Temperature Refrigeratory Cold water supply pipe 100, High Temperature Refrigeratory hot water return pipe 200, low-temperature cold store medium in the present invention are supplied
To pipe 300, low-temperature cold store medium back flow pipe 400, cooling medium efferent duct 16, cooling medium return duct 17, cooling tower feed pipe
21 and cooling tower return pipe 22 be all respectively arranged with valve be used for control piper it is open close.
Liquid pump 7 is provided with cooling medium efferent duct 16, for driving cooling medium to be circulated in pipeline, in high temperature
Water pump 8 is provided with freezer Cold water supply pipe 100, for driving water to be circulated in pipeline.
Low-temperature cold store medium supply pipe 300, low-temperature cold store medium back flow pipe 400 in the present invention, cooling medium efferent duct
16th, recycle stream is connected with cooling medium in cooling medium return duct 17.
Cooling medium flows into first heat exchanger 3 after by the absorbing and cooling temperature of evaporator 11 by cooling medium efferent duct 16
It is interior to carry out heat exchange with hot water, it can also be supplied by low-temperature cold store medium supply pipe 300 to low-temperature cold store.
After cooling medium enters in first heat exchanger 3, hot water can be cooled down to form cold water, cold water warp
High Temperature Refrigeratory Cold water supply pipe 100, which is supplied to High Temperature Refrigeratory, carries out heat exchange, and the hot water formed afterwards is again through High Temperature Refrigeratory
Hot water return pipe 200 enters in first heat exchanger 3.The cooling medium after heat exchange is carried out with hot water, is flowed back through cooling medium
Pipe 17 is back to evaporator 11, and absorbing and cooling temperature is carried out again.
After cooling medium enters low-temperature cold store through low-temperature cold store medium supply pipe 300, let cool or heat exchange, put
Cooling medium after cold returns in evaporator 11 to enter again by low-temperature cold store medium back flow pipe 400, cooling medium return duct 17
Row absorbing and cooling temperature.
The temperature of cooling medium in cooling medium efferent duct 16 is below 0 DEG C, so as to in first heat exchanger 3
Hot water carry out effect cooling down, or in low-temperature cold store carry out effective temperature-reducing cooling, improve refrigerating effect.Cooling medium can be with
For ethylene glycol or salt solution, less than 0 DEG C can keep in liquid condition without freezing.
Refrigeration unit 1 in the present invention is suitable by pipeline 15 by evaporator 11, compressor 12, condenser 13 and expansion valve 14
Secondary connection forms the circulation of a closing, has working media in pipeline 15, working media can be between gaseous state and liquid
Conversion.
Cooling medium efferent duct 16 is connected on the liquid outlet 112 of evaporator 11, and cooling medium return duct 17 is connected to steaming
On the inlet 111 for sending out device 11.
Specifically, enter the working media of evaporator 11 for low pressure liquid from the side of expansion valve 14, acted on by evaporator 11
Afterwards, the working media of low pressure liquid is changed into low-pressure gas, and evaporator 11 absorbs heat in this process, so as to by evaporator 11
Cooling medium cooling.
The working media of low-pressure gas enters compressor 12 after being come out from evaporator 11, becomes after the effect of compressor 12
For gases at high pressure, gases at high pressure obtain working media and entered in condenser 13, in the presence of condenser 13, the work of gases at high pressure
Medium is changed into the working media of highly pressurised liquid, so that the heat release of condenser 13 in this process, its liberated heat passes through cooling tower 2
Water circulation take away.
The working media of highly pressurised liquid comes out the laggard effect for crossing expansion valve 14 from condenser 13, is changed into low pressure liquid again,
Enter afterwards and cycle operation is carried out in evaporator 11, so as to realize that evaporator 11 absorbs heat, the heat release of condenser 13, so as to will be from
The cooling medium that cooling medium return duct 17 flows back is carried out after cooling down, then will be cooled by cooling medium efferent duct 16 cold
But the cooling medium after is delivered to first heat exchanger 3 or low-temperature cold store medium supply pipe 300 is recycled.
Cooling tower waterway circulating is connected with condenser 13.Water in cooling tower 2 is generally room temperature, and it is supplied by cooling tower
Water pipe 21 is connected with the water inlet 131 of condenser, and is provided with cooling tower feed pipe 21 cooling pump 23；Cooling tower 2 passes through
Cooling tower return pipe 22 is connected with the delivery port 132 of condenser and realizes waterway circulating.
Cooling pump is common water pump, because it is arranged on the water pipe of cooling tower, referred to as cooling pump, and it has no cooling work(
Energy.
When using cooling tower waterway circulating, the water in cooling tower 2 supplies water in the presence of cooling pump 23 by cooling tower
Pipe 21, water inlet 131, which enter, carries out heat exchange in condenser 13, returned to afterwards by cooling tower return pipe 22 in cooling tower 2,
So as to which the liberated heat of condenser 13 be taken away.
The United system that the present invention is provided, it is possible to achieve by refrigeration unit individually to low-temperature cold store cooling, refrigeration
Unit is individually to High Temperature Refrigeratory cooling and refrigeration unit simultaneously to High Temperature Refrigeratory and low-temperature cold store cooling.
Refrigeration unit individually to low-temperature cold store cooling when, cooling medium through cooling medium efferent duct 16, low-temperature cold store be situated between
Matter supply pipe 300, which enters, carries out heat exchange in low-temperature cold store, the cooling medium that heat exchange is completed is returned through low-temperature cold store medium
Flow tube 400, cooling medium return duct 17 return to and cooling down are carried out in evaporator 11, afterwards that the cooling medium of cooling down is defeated
Go out to cooling medium efferent duct 16 and recycled.
Refrigeration unit individually to High Temperature Refrigeratory cooling when, cooling medium through cooling medium efferent duct 16 enter first heat hand over
Heat exchange is carried out in parallel operation 3, the cooling medium that heat exchange is completed returns to enter in evaporator 11 through cooling medium return duct 17
Row cooling down, the cooling medium of cooling down is exported to cooling medium efferent duct 16 recycled afterwards.
Cold water enters through High Temperature Refrigeratory Cold water supply pipe 100 to carry out being formed after heat exchange, heat exchange in High Temperature Refrigeratory
Hot water through High Temperature Refrigeratory hot water return pipe 200 enter first heat exchanger 3 in carry out cooling down, cooling down formation it is cold
Water exports High Temperature Refrigeratory Cold water supply pipe 100 and recycled again.
Refrigeration unit simultaneously to High Temperature Refrigeratory and low-temperature cold store cooling when, a part of cooling medium is exported through cooling medium
Pipe 16, which enters in low-temperature cold store medium supply pipe 300, to be supplied to low-temperature cold store, and another part cooling medium is exported through cooling medium
Pipe 16 enters in first heat exchanger 3 carries out cooling down to hot water.
Thus, the United system that the present invention is provided, expands the freezer scope of application, simplifies equipment, reduce into
This.
It is preferred that as shown in figure 1, the United system also includes water cold accumulation device 4.
Water cold accumulation device 4, which includes, is provided with the He of the first cooling of water storage container pipe 41 on water storage container 40, water storage container 40
The first return pipe of water storage container 42.
The first cooling of water storage container pipe 41 and the first return pipe of water storage container 42 are connected with condenser 13 respectively.
Specifically, the first cooling of water storage container pipe 41 is connected with the water inlet 131 of condenser 13, the backwater of water storage container first
Pipe 42 is connected with the delivery port 132 of condenser 13, realizes that reservoir is circulated.
Valve controlling pipeline is respectively arranged with the first cooling of water storage container pipe 41 and the first return pipe of water storage container 42 to break
It is logical.
Thus, condenser 13 has second waterway circulating, that is to say the waterway circulating of water cold accumulation device 4.
The water cold storage of the inside can typically be carried out cold-storage by water storage container 40 in the low power consumption period, save electric energy
And the electricity charge.
Condenser 13 is when using water cold accumulation device waterway circulating, and the cold water in water storage container 40 passes through water storage container first
Cooling pipe 41, the water inlet 131 of condenser, which enter, carries out heat exchange in condenser 13, pass through the backwater of water storage container first afterwards
Pipe 42 is returned in water storage container 40, so that the liberated heat of condenser 13 be taken away.In this process, supplied to condenser 13
For cold water, the efficient heat transfer to condenser 13 is improved, and reduces the compression ratio of compressor 12, compressor 12 is reduced
Power consumption.
Wherein, in water cold accumulation device cooling, cooling tower 2 disconnects with condenser 12, only by water storage container 40 to condensation
Device 13 supplies cold water, and now the no longer electricity consumption of cooling pump 23, further saves electric energy.
It is preferred that as shown in figure 1, being provided with the second cooling of water storage container pipe 43 and water storage container second on water storage container 40
Return pipe 44.
The second cooling of water storage container pipe 43 is connected with High Temperature Refrigeratory Cold water supply pipe 100, the second return pipe of water storage container 44
It is connected with High Temperature Refrigeratory hot water return pipe 200.
It is open close that the second cooling of water storage container pipe 43 and the second return pipe of water storage container 44 are respectively arranged with Valve controlling pipeline.
Cold water and hot water only relative concept are mentioned in the present invention, the height of its absolute temperature is not necessarily represented.
It is arranged such, in 40 cooling of water cold accumulation device, directly can also supplies cold water to High Temperature Refrigeratory.Water storage container 40
In cold water be directly fed to through the second cooling of water storage container pipe 43 and High Temperature Refrigeratory Cold water supply pipe 100 in High Temperature Refrigeratory, it is cold
Water is changed into hot water in freezer after heat exchange, and hot water is through High Temperature Refrigeratory hot water return pipe 200 and the backwater of water storage container second
Pipe 44 is returned in water storage container 40.
Because the temperature in evaporator 11 is than relatively low, good cooling results, if by High Temperature Refrigeratory Cold water supply pipe 100 and height
Warm freezer hot water return pipe 200 is directly connected with evaporator 11, then is easily caused the water freezing in pipeline, it is impossible to carry out circulation profit
With.By setting first heat exchanger 3 to carry out heat transfer heat exchange, it is possible to prevente effectively from the water freezing in pipeline, and can be by
Water is effectively cooled.
In the directly cooling into High Temperature Refrigeratory of water cold accumulation device 40, refrigeration unit 1, cooling tower 2 are stopped, further
Electric energy and the electricity charge are saved.
It is preferred that as shown in figure 3, being provided with upper water distributor 401 and lower water-dispensing device 402 in water storage container 40.
The first return pipe of water storage container 42 and the second return pipe of water storage container 44 are connected with upper water distributor 401 respectively, retaining
The first cooling of container pipe 41 and the second cooling of water storage container pipe 43 are connected with lower water-dispensing device 402 respectively.
Be additionally provided with second heat exchanger 5 in water storage container 40, second heat exchanger 5 and cooling medium efferent duct 16 it
Between be connected with heat exchanger media supply pipe 51, be provided between second heat exchanger 5 and cooling medium return duct 17 heat exchanger Jie
Matter return duct 52.
Specifically, the second return pipe of water storage container 44 is connected on the first return pipe of water storage container 42, water storage container second
Cooling pipe 43 is connected on the first cooling of water storage container pipe 41.
By the way that heat exchanger 5 is placed in water storage container 40, heat exchanger 5 can be carried out with the water in water storage container 40
Heat exchange, to the water in a wide range of in water storage container 40 can an effective temperature-reducing, improve cooling-down effect, simplification finishes
Structure, reduces cost.
Water storage container in the present invention can be used for the equipment of retaining for water tank or catch basin etc..
In cold-storage, the cooling medium in heat exchanger media supply pipe 51 is supplied to second heat exchanger 5, with retaining
Water in container 40 is carried out after heat exchange, and cooling medium returns to evaporator 11, evaporator through heat exchanger media return duct 52
11 heat absorptions, cooling medium cooling down afterwards exports the cooling medium after cooling to heat exchanger media supply pipe 51
It is interior to be recycled.
Control valve 53 is provided with heat exchanger media supply pipe 51 and heat exchanger media return duct 52, for control piper
It is open close.
Thus, the cooling medium in the heat exchanger media supply pipe 51 and heat exchanger media return duct 52 in the present invention, profit
It is cooled down with evaporator 11 so that simple in construction, be easy to arrangement, and reduce cost.
Cooling medium in heat exchanger media supply pipe 51 and heat exchanger media return duct 52 can be ethylene glycol or salt solution,
Less than 0 DEG C can keep in liquid condition without freezing.
Water cold accumulation device in the present invention, its is simple in construction, and water is cooled by second heat exchanger, reduced into
This, and effective temperature-reducing can be carried out to the water in cold accumulation container, improve the cold-storage ability of water cold accumulation device unit cold accumulation container.
It is preferred that as shown in figure 3, the first feed pipe 45 is additionally provided with lower water-dispensing device 402, on the first feed pipe 45
Water pump 6 is provided with, the first cooling of water storage container pipe 41 and the second cooling of water storage container 43 delivery port 62 respectively with water pump 6 of pipe connect
Connect.
The second feed pipe 46 is also communicated between the water inlet 61 and upper water distributor 401 of water pump 6, in the water outlet of water pump 6
The 3rd feed pipe 47 is additionally provided between mouth 62 and lower water-dispensing device 402.
It is provided with first feed pipe 45 on first control valve 451, the second feed pipe 46 and is provided with the second control valve 461,
The 3rd control valve 471 is provided with 3rd feed pipe 47.
In cold-storage, sustainable supply cooling medium in heat exchanger media supply pipe 51 passes through second heat exchanger 5 and retaining
Water in container 40 carries out the temperature of water in heat exchange, reduction water storage container 40, reaches water cold storage effect.
When letting cool, by the cold water in water storage container 40 successively through lower water-dispensing device 402, the first feed pipe 45, water pump 6, storage
The first cooling of water receptacle pipe 41 and/or the second cooling of water storage container pipe 43 supply to condenser 13 and/or High Temperature Refrigeratory and carry out heat
Exchange, the hot water after heat exchange is through the first return pipe of water storage container 42 and/or the second return pipe of water storage container 44, upper water distribution
Device 401 is returned in water storage container 40.
Wherein, the characteristic of water is that density at 4 DEG C or so is maximum, and the water in water storage container 40 is when higher than 4 DEG C, temperature
High water can automatically float in water storage container 40, and now its buoyancy is upwards or towards the side of upper water distributor 401；In water storage container 40
Water when less than or equal to 4 DEG C, the high water of temperature can automatically sink in water storage container 40, towards the side of lower water-dispensing device 402.
In general, the water returned from the first return pipe of water storage container 42 and/or the second return pipe of water storage container 44 is at 4 DEG C
More than, now using the draining of upper water distributor 401, the mode that lower water-dispensing device 402 is intake carries out cold-storage, enables to enter retaining appearance
The direction of inertia force of the buoyancy direction of water in device 40 with water in water storage container 40 is consistent, beneficial in reduction water storage container 40
The thermocline thickness of process of cool formation, improves cold storage efficiency.The draining of upper water distributor 401 is being used, what lower water-dispensing device 402 was intake
Mode of operation when mode carries out cold-storage is：
As shown in figure 4, in the presence of water pump 6, the water of the inner top of water storage container 40 is discharged from upper water distributor 401, and is passed through
Second feed pipe 46, the 3rd feed pipe 47 and lower water-dispensing device 402 enter in water storage container 40, into the water warp in water storage container 40
Second heat exchanger 5 flows upwardly into the storage area of water storage container 40 after cooling, contacted with the high-temperature water that storage area has been present, according to
Moved in the horizontal direction by density contrast rather than inertia, form density current, with pure heat conduction form formation mesolimnion.
It is preferred that as shown in figure 3, also being connected between the delivery port 62 of upper water distributor 401 and water pump 6 by the 4th feed pipe 48
It is logical, it is provided with the 4th control valve 481 on the 4th feed pipe 48.
It is arranged such, in cold-storage, if water temperature is less than or equal to 4 DEG C, can also realizes using the row of lower water-dispensing device 402
Water, the mode that upper water distributor 401 is intake carries out cold-storage, is specially：
As shown in figure 5, in the presence of water pump 6, the water of the inner bottom part of water storage container 40 is discharged by lower water-dispensing device 402, it
Enter successively through the first feed pipe 45, the 4th feed pipe 48 and upper water distributor 401 in water storage container 40 afterwards, into water storage container 40
Interior coolant-temperature gage low-density is small, and the surface for floating over high-temperature water is moved in the horizontal direction, forms density current, is formed in pure heat conduction form
Mesolimnion.
As in Figure 3-5, one end of the 3rd feed pipe 47 is connected between the first control valve 451 and lower water-dispensing device 402, its
The other end is connected with the first cooling of water storage container pipe 41.
One end of 4th feed pipe 48 is connected between the second control valve 461 and upper water distributor 401, its other end and retaining
The first cooling of container pipe 41 is connected.
It is arranged so as to, facilitates pipe laying, is using the draining of upper water distributor 401, the mode that lower water-dispensing device 402 is intake is carried out
During cold-storage, opening controlling valve 53, the second control valve 461 and the 3rd control valve 471, remaining valve Close All.
The draining of lower water-dispensing device 402 is being used, the mode that upper water distributor 401 is intake is when carrying out cold-storage, opening controlling valve 53, the
One control valve 451 and the 4th control valve 481, remaining valve Close All.
Above-mentioned each valve or each control valve can motor-driven valve, according to instruction automatic switch.
It is preferred that as shown in figure 3, second heat exchanger 5 is located between upper water distributor 401 and lower water-dispensing device 402, it is and close
The side of lower water-dispensing device 402, beneficial to increase cold storage capacity.
Upper strata may be frozen in water storage container 40, and second heat exchanger 5 is positioned close into the side of lower water-dispensing device 402, can
To avoid contacting with ice, water is cooled so as to be better achieved.
It is preferred that as shown in figure 3, be provided with multiple temperature sensors 403 in water storage container 40, for monitoring water temperature,
Preferably, multiple temperature sensors 403 can be arranged in vertical direction, the water temperature for monitoring every layer of water.
First control valve 451, the second control valve 461, the 3rd control valve 471 and the 4th control valve 481 are motor-driven valve.
Temperature sensor 403 can be with the first control valve 451, the second control valve 461, the 3rd control valve 471 and the 4th control
The signal of valve 481 connection processed.By temperature sensor 403 transmit come water temperature signal, it is possible to achieve automatically turn on or closure, and then
Realization is automatically controlled.
Certainly, the valve or control valve on other pipelines can also be motor-driven valve.
When cold-storage is operated, such as temperature sensor 403 monitors that the water temperature at upper water distributor 402 is more than 4 DEG C, then by temperature
Signal is transferred to each motor-driven valve, now, and control valve 53, the second control valve 461 and the 3rd control valve 471 are automatically turned on, remaining valve
Door Close All, remaining valve is all automatic to close.
Monitor that the water temperature at upper water distributor 401 is less than or equal to 4 DEG C such as temperature sensor 403, then pass temperature signal
Each motor-driven valve is handed to, now, control valve 53, the first control valve 451 and the 4th control valve 481 are automatically turned on, remaining valve is whole
It is automatic to close.
As shown in Figure 1-2, one embodiment of the invention provides a kind of control method of United system, including following step
Suddenly：
Refrigeration unit 1 is individually to low-temperature cold store cooling：
Cooling medium enters through cooling medium efferent duct 16, low-temperature cold store medium supply pipe 300 carries out heat in low-temperature cold store
Amount is exchanged, and the cooling medium that heat exchange is completed returns to evaporation through low-temperature cold store medium back flow pipe 400, cooling medium return duct 17
Cooling down is carried out in device 11, the cooling medium of cooling down is exported to cooling medium efferent duct 16 carry out circulation profit afterwards
With.
Refrigeration unit 1 is individually to High Temperature Refrigeratory cooling：
Cooling medium enters through cooling medium efferent duct 16 carries out heat exchange in first heat exchanger 3, heat exchange is complete
Into cooling medium returned to through cooling medium return duct 17 cooling down carried out in evaporator 11, afterwards by the cooling of cooling down
Medium is exported to cooling medium efferent duct 16 and recycled.
Cold water enters through High Temperature Refrigeratory Cold water supply pipe 100 to carry out being formed after heat exchange, heat exchange in High Temperature Refrigeratory
Hot water through High Temperature Refrigeratory hot water return pipe 200 enter first heat exchanger 3 in carry out cooling down, cooling down formation it is cold
Water exports High Temperature Refrigeratory Cold water supply pipe 100 and recycled again.
Refrigeration unit 1 is simultaneously to High Temperature Refrigeratory and low-temperature cold store cooling：
A part of cooling medium enters in low-temperature cold store medium supply pipe 300 through cooling medium efferent duct 16 to be supplied to low temperature
Freezer, another part cooling medium enters in first heat exchanger 3 through cooling medium efferent duct 16 carries out cooling down to hot water.
The control method for the United system that the present invention is provided, expands the scope of application, reduces cost, meets not
Same demand.
It is preferred that also comprising the following steps, the cold-storage of water cold accumulation device 4：
In 4 cold-storage of water cold accumulation device, cooling tower 2 keeps supplying water to condenser 13, and refrigeration unit 1 works.
Cooling medium enters in second heat exchanger 5 through cooling medium efferent duct 16, heat exchanger media supply pipe 51 to be carried out
Heat exchange, the cooling medium for completing heat exchange returns to evaporation through heat exchanger media return duct 52, cooling medium return duct 17
Cooling down is carried out in device 11, the cooling medium of cooling down is exported to cooling medium efferent duct 16 carry out circulation profit afterwards
With.
The control method for the United system that the present invention is provided, its water storage container 40 is in low power consumption cold-storage, in electricity consumption
Cold water directly can be directly fed to High Temperature Refrigeratory and/or condenser during peak, save the electricity charge.
It is preferred that also comprising the following steps, water cold accumulation device 4 is let cool：
Cold water in water storage container 40 is supplied to condenser 13 through the first cooling of water storage container pipe 41 carries out heat exchange, heat
Amount exchanges the hot water produced and returned to through the first return pipe of water storage container 42 in water storage container 40.
The water temperature at condenser 13 is reduced, the compression ratio of compressor 12 is reduced, has saved electricity consumption, while improving system
Cold.
It is preferred that when water cold accumulation device 4 is let cool, refrigeration unit 1 keeps work, cooling tower 2 to be stopped, now can be with
To low-temperature cold store cooling, and using electricity wisely.
It is preferred that also comprising the following steps, water cold accumulation device is let cool：
Cold water in water storage container 40 is supplied to High Temperature Refrigeratory Cold water supply pipe 100 through the second cooling of water storage container pipe 43,
The hot water that heat exchange is produced in High Temperature Refrigeratory is through High Temperature Refrigeratory hot water return pipe 200, the second return pipe of water storage container 44 times
Into water storage container 40, directly to High Temperature Refrigeratory cooling.
It is preferred that wherein, when the water cold accumulation device 4 is let cool, refrigeration unit 1 and cooling tower 2 are all stopped, save
Power consumption, reduces cost.
It is preferred that in 4 cold-storage of water cold accumulation device：
If the temperature of the water at upper water distributor 401 exceedes preset temperature, using the draining of upper water distributor 401, lower water distribution
The mode that device 402 is intake carries out cold-storage；
If the temperature of the water at upper water distributor 401 is less than or equal to preset temperature, using the draining of lower water-dispensing device 402,
The mode that upper water distributor 401 is intake carries out cold-storage.
Preset temperature is preferably 4 DEG C, and above two cold-storage mode can be kept in water storage container 40 at different temperature
Less mesolimnion, improve cold accumulation container cold storage efficiency.
It is preferred that as shown in figure 4, using upper water distributor draining 401, the mode that lower water-dispensing device 402 is intake carries out cold-storage
When：
The inertia force of water in water storage container 40 is towards the side of upper water distributor 401；
In the presence of water pump 6, the water of the inner top of water storage container 40 is through the second feed pipe 46, the 3rd feed pipe 47 and lower cloth
Hydrophone 402 enters in water storage container 40, so as to keep causing that the density of water after the heat exchange into water storage container 40 is big
In the density before heat exchange, the water for making density big remains in the lower section of water storage container.
As shown in figure 5, the draining of lower water-dispensing device 402 is being used, when the mode that upper water distributor 401 is intake carries out cold-storage：
The inertia force of water in water storage container 40 is towards the side of lower water-dispensing device 402；
In the presence of water pump 6, the water of the inner bottom part of water storage container 40 is through the first feed pipe 45, the 4th feed pipe 48 and upper cloth
Hydrophone 401 enters in water storage container 40, so as to keep causing that the density of water after the heat exchange into water storage container 40 is small
In the density before heat exchange, the water for making density small remains in the top of water storage container.
It is preferred that in cold-storage, cooling medium of the delivery temperature below 0 DEG C into heat exchanger media supply pipe 51 stores
Water in water receptacle 40 can finally reach 0 DEG C, and allow to form frozen water admixture.
Cooling medium can be ethylene glycol or salt solution, and the temperature of cooling medium be able to will not freeze below 0 DEG C, so that
The water obtained in water storage container 40 can reach frozen water admixture, play good cold accumulation effects.The temperature of cooling medium is preferred
For between -6 DEG C to -4 DEG C, good refrigeration effect.Water in water storage container 40 is when reaching frozen water admixture, and its temperature is 0
DEG C, storage cold is improved, and can realize and quickly let cool, meet user's request.
As needed, above-mentioned each technical scheme can be combined, to reach best-of-breed technology effect.
Above-described is only the principle and preferred embodiment of the present invention.It should be pointed out that for the common skill of this area
For art personnel, on the basis of the principle of the invention, some other modifications can also be made, the protection model of the present invention is also should be regarded as
Enclose.
Claims (17)
1. a kind of United system, it is characterised in that cold including refrigeration unit, cooling tower, first heat exchanger, High Temperature Refrigeratory
Water supplying pipe, High Temperature Refrigeratory hot water return pipe, low-temperature cold store medium supply pipe, low-temperature cold store medium back flow pipe, cooling medium are defeated
Outlet pipe and cooling medium return duct；
The refrigeration unit includes the evaporator being sequentially connected with, compressor, condenser and expansion valve；
The cooling tower includes is provided with cooling on cooling tower feed pipe and cooling tower return pipe, the cooling tower feed pipe
Pump；
The cooling tower feed pipe and the cooling tower return pipe are connected with the condenser respectively；
The cooling medium efferent duct and cooling medium return duct connection are in the first heat exchanger and the evaporator
Between；
The High Temperature Refrigeratory Cold water supply pipe and High Temperature Refrigeratory hot water return pipe are connected with the first heat exchanger respectively；
The low-temperature cold store medium supply pipe is connected with the cooling medium efferent duct, the low-temperature cold store medium back flow pipe and institute
State the connection of cooling medium return duct.
2. United system according to claim 1, it is characterised in that the United system also includes water cold storage
Device；
The water cold accumulation device, which includes, is provided with water storage container the first cooling pipe and retaining on water storage container, the water storage container
The return pipe of container first；
Water storage container the first cooling pipe and the return pipe of the water storage container first are connected with the condenser respectively.
3. United system according to claim 1 or 2, it is characterised in that be provided with retaining on the water storage container
Container the second cooling pipe and the return pipe of water storage container second；
Water storage container the second cooling pipe is connected with the High Temperature Refrigeratory Cold water supply pipe, the return pipe of water storage container second
It is connected with the High Temperature Refrigeratory hot water return pipe.
4. United system according to claim 3, it is characterised in that be provided with upper water distributor in the water storage container
And lower water-dispensing device；
The return pipe of water storage container first and the water storage container second return pipe is connected with the upper water distributor respectively, described
Water storage container the first cooling pipe and the second cooling of water storage container pipe are connected with the lower water-dispensing device respectively；
Second heat exchanger, the second heat exchanger and the cooling medium efferent duct are additionally provided with the water storage container
Between be connected with heat exchanger media supply pipe, be provided with heat exchange between the second heat exchanger and the cooling medium return duct
Device medium back flow pipe.
5. United system according to claim 4, it is characterised in that
The first feed pipe is additionally provided with the lower water-dispensing device, water pump, the retaining are provided with first feed pipe
The delivery port of container the first cooling pipe and the water storage container the second cooling pipe respectively with the water pump is connected；
The second feed pipe is also communicated between the water inlet and the upper water distributor of the water pump；
The 3rd feed pipe is additionally provided between the delivery port and the lower water-dispensing device of the water pump；
It is provided with first feed pipe on the first control valve, second feed pipe and is provided with the second control valve, described
The 3rd control valve is provided with three feed pipes.
6. United system according to claim 5, it is characterised in that
Also connected, set on the 4th feed pipe by the 4th feed pipe between the upper water distributor and the delivery port of the water pump
It is equipped with the 4th control valve.
7. United system according to claim 4, it is characterised in that
The second heat exchanger is located between the upper water distributor and the lower water-dispensing device, and close to the lower water-dispensing device side.
8. United system according to claim 4, it is characterised in that multiple temperature are provided with the water storage container
Spend sensor.
9. a kind of control method of United system, it is characterised in that comprise the following steps：
Refrigeration unit is individually to low-temperature cold store cooling：
Cooling medium enters in low-temperature cold store through cooling medium efferent duct, low-temperature cold store medium supply pipe carries out heat exchange, heat
It is cold that the cooling medium that amount exchange is completed returns to progress cooling in evaporator through low-temperature cold store medium back flow pipe, cooling medium return duct
But, the cooling medium of cooling down is exported to cooling medium efferent duct afterwards and recycled；
Refrigeration unit is individually to High Temperature Refrigeratory cooling：
Cooling medium enters through cooling medium efferent duct carries out heat exchange in first heat exchanger, the cooling that heat exchange is completed
Medium returns to through cooling medium return duct and cooling down is carried out in evaporator, afterwards exports the cooling medium of cooling down to cold
But medium efferent duct is recycled；
Cold water enters the hot water for carrying out being formed after heat exchange, heat exchange in High Temperature Refrigeratory through High Temperature Refrigeratory Cold water supply pipe and passed through
High Temperature Refrigeratory hot water return pipe, which enters, carries out cooling down in first heat exchanger, the cold water of cooling down formation exports height again
Warm freezer Cold water supply pipe is recycled；
Refrigeration unit is simultaneously to High Temperature Refrigeratory and low-temperature cold store cooling：
A part of cooling medium enters through cooling medium efferent duct to be supplied to low-temperature cold store in low-temperature cold store medium supply pipe, another
Part cooling medium enters in first heat exchanger through cooling medium efferent duct carries out cooling down to hot water.
10. control method according to claim 9, it is characterised in that also comprise the following steps, water cold accumulation device cold-storage：
In water cold accumulation device cold-storage, cooling tower keeps supplying water to condenser, refrigeration unit work；
Cooling medium enters in second heat exchanger through cooling medium efferent duct, heat exchanger media supply pipe carries out heat exchange,
It is cold that the cooling medium of completion heat exchange returns to progress cooling in evaporator through heat exchanger media return duct, cooling medium return duct
But, the cooling medium of cooling down is exported to cooling medium efferent duct afterwards and recycled.
11. control method according to claim 10, it is characterised in that also comprise the following steps, water cold accumulation device is let cool：
Cold water in water storage container is supplied to condenser through water storage container the first cooling pipe carries out heat exchange, and heat exchange is produced
Hot water returned to through the return pipe of water storage container first in water storage container.
12. control method according to claim 11, it is characterised in that wherein, when the water cold accumulation device is let cool, system
Cold group holding work, cooling tower are stopped.
13. control method according to claim 10, it is characterised in that also comprise the following steps, water cold accumulation device is let cool：
Cold water in water storage container is supplied to High Temperature Refrigeratory Cold water supply pipe, in High Temperature Refrigeratory through water storage container the second cooling pipe
The hot water that heat exchange is produced is returned in water storage container through High Temperature Refrigeratory hot water return pipe, the return pipe of water storage container second.
14. control method according to claim 13, it is characterised in that wherein, when the water cold accumulation device is let cool, system
Cold group and cooling tower are all stopped.
15. control method according to claim 10, it is characterised in that
In water cold accumulation device cold-storage：
If the temperature of the water at upper water distributor exceedes preset temperature, using upper water distributor draining, the side of lower water-dispensing device water inlet
Formula carries out cold-storage；
If the temperature of the water at upper water distributor is less than or equal to preset temperature, using lower water-dispensing device draining, upper water distributor enters
The mode of water carries out cold-storage.
16. control method according to claim 15, it is characterised in that
Upper water distributor draining is being used, when the mode of lower water-dispensing device water inlet carries out cold-storage：
In the presence of water pump, the water of water storage container inner top enters through the second feed pipe, the 3rd feed pipe and lower water-dispensing device to be stored
In water receptacle, so as to keep causing the density of the water entered in water storage container after the heat exchange is more than close before heat exchange
Degree；
Lower water-dispensing device draining is being used, when the mode of upper water distributor water inlet carries out cold-storage：
In the presence of water pump, the water of water storage container inner bottom part enters through the first feed pipe, the 4th feed pipe and upper water distributor to be stored
In water receptacle, so as to keep causing the density of the water entered in water storage container after the heat exchange is less than close before heat exchange
Degree.
17. control method according to claim 10, it is characterised in that
In cold-storage, cooling medium of the delivery temperature below 0 DEG C into heat exchanger media supply pipe；
Water in the water storage container can finally reach 0 DEG C.
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| CN201710251798.0A CN107024063A (en) | 2017-04-18 | 2017-04-18 | A kind of United system and its control method |
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|---|---|---|---|
| CN201710251798.0A CN107024063A (en) | 2017-04-18 | 2017-04-18 | A kind of United system and its control method |
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ID=59526522
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| CN109140878A (en) * | 2017-06-28 | 2019-01-04 | 华为技术有限公司 | A kind of cooling system |
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