CN106958977A - A kind of freezer cooling equipment and its control method - Google Patents
A kind of freezer cooling equipment and its control method Download PDFInfo
- Publication number
- CN106958977A CN106958977A CN201710253129.7A CN201710253129A CN106958977A CN 106958977 A CN106958977 A CN 106958977A CN 201710253129 A CN201710253129 A CN 201710253129A CN 106958977 A CN106958977 A CN 106958977A
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- Prior art keywords
- water
- cooling
- pipe
- freezer
- storage container
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 443
- 238000009825 accumulation Methods 0.000 claims abstract description 46
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 239000002826 coolant Substances 0.000 claims description 89
- 239000007788 liquid Substances 0.000 claims description 28
- 238000010992 reflux Methods 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000005611 electricity Effects 0.000 description 6
- 238000007726 management method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of freezer cooling equipment, including refrigeration unit, cooling tower, freezer cooling pipe, freezer return duct and first heat exchanger；Wherein, the freezer cooling equipment also includes water cold accumulation device；Water cold accumulation device, which includes, is provided with water storage container cooling pipe and water storage container return pipe on water storage container, water storage container；Water storage container cooling pipe is connected with freezer cooling pipe, and water storage container return pipe is connected with freezer return duct.The invention also discloses a kind of control method of freezer cooling equipment.By setting water cold accumulation device, can in low power consumption cold-storage, cold water is directly supplied to freezer by water cold accumulation device during peak of power consumption, now refrigeration unit and cooling pump are stopped, can be with power cost saving, and reduce cost.
Description
Technical field
The present invention relates to freezer cooling technical field, more particularly to a kind of freezer cooling equipment for High Temperature Refrigeratory 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, freezer operation is typically combined to High Temperature Refrigeratory cooling water by cooling tower, refrigeration unit.
But cooling tower, refrigeration unit continuous firing are needed in this process, and in peak of power consumption, the electricity charge are higher, are unfavorable for
It is cost-effective.
The content of the invention
It is an object of the invention to overcome defect of the prior art to save power consumption there is provided one kind and can reduce
The freezer cooling equipment and its control method of cost.
Technical solution of the present invention provides a kind of freezer cooling equipment, including refrigeration unit, cooling tower, freezer cooling pipe, cold
Storehouse return duct and first heat exchanger；The refrigeration unit includes the evaporator being sequentially connected with, compressor, condenser and expansion
Valve；The condenser includes the condenser water inlet and leaving condenser water mouthful of connection；The cooling tower includes cooling tower confession
Cooling pump is provided with water pipe and cooling tower return pipe, the cooling tower feed pipe；The cooling tower feed pipe and the condensation
Device water inlet is connected, and the cooling tower return pipe is connected with the leaving condenser water mouthful；The evaporator includes evaporator feed liquor
Mouth and the evaporator liquid outlet connected with the evaporator inlet；The first heat exchanger and the evaporator liquid outlet it
Between be provided with the delivery pipe of cooling medium first, be provided between the first heat exchanger and the evaporator inlet cooling be situated between
The return duct of matter first；The freezer cooling pipe and the freezer return duct are connected with the first heat exchanger respectively；Wherein, should
Freezer cooling equipment also includes water cold accumulation device；The water cold accumulation device includes to be set on water storage container, the water storage container
It is equipped with water storage container cooling pipe and water storage container return pipe；The water storage container cooling pipe is connected with the freezer cooling pipe, institute
Water storage container return pipe is stated to be connected with the freezer return duct.
Further, upper water distributor and the lower water distribution below the upper water distributor are provided with the water storage container
Device；The water storage container return pipe is connected with the upper water distributor, and the water storage container cooling pipe is connected with the lower water-dispensing device；
Second heat exchanger is additionally provided with the water storage container, is connected between the second heat exchanger and the evaporator liquid outlet
Be connected to the delivery pipe of cooling medium second for conveying cooling medium, the second heat exchanger and the evaporator inlet it
Between be provided with for heat exchange after cooling medium backflow the return duct of cooling medium second.
Further, the first feed pipe is additionally provided with the lower water-dispensing device, is provided with first feed pipe
Water pump, the water storage container cooling pipe is connected with the delivery port of the water pump；The water pump water inlet with it is described on water distribution
The second feed pipe is also communicated between device；The 3rd water supply is additionally provided between the delivery port and the lower water-dispensing device of the water pump
Pipe；It is provided with first feed pipe on the first control valve, second feed pipe and is provided with the second control valve, the described 3rd
The 3rd control valve is provided with feed pipe.
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, one end of the 3rd feed pipe is connected between the first control valve and the lower water-dispensing device,
Its other end is connected with the water storage container cooling pipe；One end of 4th feed pipe is connected to the second control valve and institute
State between upper water distributor, its other end is connected with the water storage container cooling pipe.
Further, liquid pump and the first delivery pipe control valve, institute are provided with the delivery pipe of cooling medium first
State and the second delivery pipe control valve is provided with the delivery pipe of cooling medium second；The delivery pipe of cooling medium second and the cooling
The delivery pipe of medium first is connected, and the delivery pipe of cooling medium second is connected to the liquid pump and controlled with first delivery pipe
Between valve；The first reflux tube valve is provided with the return duct of cooling medium first, in the cooling medium second time
The second reflux tube valve is provided with flow tube；The return duct of cooling medium second connects with the return duct of cooling medium first
Connect, the return duct of cooling medium second is connected between second reflux tube valve and the evaporator inlet.
Further, the heat exchanger is located between the upper water distributor and the lower water-dispensing device, and under described
Water-locator 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 freezer cooling equipment, comprises the following steps：Water cold storage is filled
Put cold-storage：In water cold accumulation device cold-storage, cooling tower keeps supplying water to condenser, refrigeration unit work, evaporator absorption refrigeration,
Cold water supply in freezer cooling pipe is to freezer, and cold water is changed into hot water in freezer after heat exchange, and hot water flows back through freezer
The cold water that pipe enters in first heat exchanger after progress heat exchange cooling down, cooling down is supplied to freezer cooling pipe again
Recycle；Water cold accumulation device cooling：Refrigeration unit is stopped, and water cold accumulation device directly supplies cold water to freezer；Retaining is held
Cold water in device is directly fed to freezer through water storage container cooling pipe and freezer cooling pipe, and cold water is in freezer after heat exchange
It is changed into hot water, hot water is returned in water storage container through freezer return duct and water storage container return pipe.
Further, in water cold accumulation device cold-storage, the water in the heat exchanger and water storage container in water storage container is passed through
Carry out the temperature of water in heat exchange, reduction water storage container.
Further, during water cold accumulation device cold-storage：If the temperature of the water at upper water distributor exceedes preset temperature, use
Upper water distributor draining, 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 pre-
If 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 the delivery pipe of cooling medium second；
Water in the water storage container can finally reach 0 degree Celsius.
Using above-mentioned technical proposal, have the advantages that：
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 freezer, now refrigeration unit and cooling pump are stopped, can be with power cost saving, and reduce cost.
Brief description of the drawings
The schematic diagram for the freezer cooling equipment that Fig. 1 provides for one embodiment of the invention；
Fig. 2 is the partial schematic diagram of freezer cooling equipment；
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- evaporator inlets；
112- evaporator liquid outlets；12- compressors；13- condensers；
131- condenser water inlets；132- leaving condenser waters mouthful；14- expansion valves；
15- pipelines；16- first heat exchangers；The delivery pipe of 17- cooling mediums first；
The delivery pipes of 171- first control valve；The return duct of 18- cooling mediums first；
The reflux tube valves of 181- first；19- liquid pumps；2- cooling towers；
21- cooling tower feed pipes；22- cooling tower return pipes；23- cooling pumps；
3- freezer cooling pipes；31- freezer cooling management and control valves；4- freezer return ducts；
41- freezer reflux tube valves；5- water cold accumulation devices；51- water storage containers；
511- upper water distributors；512- lower water-dispensing devices；513- temperature sensors；
52- water storage container cooling pipes；521- cooling management and control valves；53- water storage container return pipes；
531- return pipes control valve；The feed pipes of 54- first；541- first controls valve；
The feed pipes of 55- second；551- second controls valve；The feed pipes of 56- the 3rd；
561- the 3rd controls valve；The feed pipes of 57- the 4th；571- the 4th controls valve；
6- second heat exchangers；The delivery pipe of 61- cooling mediums second；The delivery pipes of 611- second control valve；
The return duct of 62- cooling mediums second；The reflux tube valves of 621- second；7- water pumps；
72- water inlets；72- delivery ports；8- water pumps.
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" used below in description, "left", "right", "up" and "down"
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.
As shown in Figure 1-2, a kind of freezer cooling equipment that one embodiment of the invention is provided, including refrigeration unit 1, cooling tower
2nd, freezer cooling pipe 3, freezer return duct 4 and first heat exchanger 16.
Refrigeration unit 1 includes the evaporator 11 being sequentially connected with, compressor 12, condenser 13 and expansion valve 14.
Condenser 13 includes the condenser water inlet 131 and leaving condenser water mouth 132 of connection.
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 is connected with condenser water inlet 131, and cooling tower return pipe 22 connects with leaving condenser water mouthful 132
Connect.
Evaporator 11 includes evaporator inlet 111 and the evaporator liquid outlet 112 connected with evaporator inlet 111.
The first delivery pipe of cooling medium 17, the first heat are provided between first heat exchanger 16 and evaporator liquid outlet 112
The first return duct of cooling medium 18 is provided between exchanger 16 and evaporator inlet 111.
Freezer cooling pipe 3 and freezer return duct 4 are connected with first heat exchanger 16 respectively.
Wherein, the freezer cooling equipment also includes water cold accumulation device 5.
Water cold accumulation device 5, which includes, is provided with water storage container cooling pipe 52 and retaining on water storage container 51, water storage container 51
Container return pipe 53.
Water storage container cooling pipe 52 is connected with freezer cooling pipe 3, and water storage container return pipe 53 is connected with freezer return duct 4.
Cooling management and control valve 521 is provided with water storage container cooling pipe 52, is provided with back in water storage container return pipe 53
Conduit control valve 531, for controlling each pipeline open close.
The freezer cooling equipment that the present invention is provided, is mainly used in High Temperature Refrigeratory cooling, is returned in freezer cooling pipe 3 and freezer
Recycle stream is connected with water in flow tube 4, is connected with the first delivery pipe of cooling medium 17 and the recycle stream of the first return duct of cooling medium 18 cold
But medium.
Cooling medium flows into the first heat exchange after by the absorbing and cooling temperature of evaporator 11 by the first delivery pipe of cooling medium 17
Carry out carrying out heat exchange with the hot water entered in first heat exchanger 16 through freezer return duct 4 in device 16, so that hot water be carried out
Cool to form cold water, cold water supplies to High Temperature Refrigeratory through freezer cooling pipe 3 and carries out heat exchange, and the hot water formed afterwards is again
It is secondary to enter through freezer return duct 4 in first heat exchanger 16.The cooling medium after heat exchange is carried out with hot water, through cooling medium the
One return duct 18 is back to evaporator 11, and absorbing and cooling temperature is carried out again.
The temperature of cooling medium in the first delivery pipe of cooling medium 17 is below 0 DEG C, so as to have to hot water
Imitate cooling down.Cooling medium can be ethylene glycol or salt solution, and 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.
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,
Afterwards into being circulated operation 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 the first return duct of cooling medium 18 flows back is carried out after cooling down, then passes through the first delivery pipe of cooling medium 17
Cooling medium after cooling down is delivered to first heat exchanger 16 and is circulated utilization.
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 condenser water inlet 131, and is provided with cooling tower feed pipe 21 valve and cooling pump 23；Cooling tower 2
It is connected by cooling tower return pipe 22 with leaving condenser water mouthful 132 and realizes waterway circulating, is provided with cooling tower return pipe 22
Valve controlling pipeline is open close.
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, condenser water inlet 131, which enter, carries out heat exchange in condenser 13, return to cooling by cooling tower return pipe 22 afterwards
In tower 2, so that the liberated heat of condenser 13 be taken away.
The water cold storage of the inside can typically be carried out cold-storage by water storage container 51 in the low power consumption period, save electric energy
And the electricity charge.
In 5 cold-storage of water cold accumulation device, cooling tower 2 keeps supplying water to condenser 13, and refrigeration unit 1 works, evaporator 11
Absorption refrigeration, carries out heat exchange by first heat exchanger 16 and hot water and cold water is made, by freezer cooling pipe 3 by Cold water supply
To freezer, cold water is changed into hot water in freezer after heat exchange, and hot water enters in first heat exchanger 16 through freezer return duct 4
Cold water after progress heat exchange cooling down, cooling down is supplied to freezer cooling pipe 3 again to be recycled.
In 5 cooling of water cold accumulation device, refrigeration unit 1 is stopped, and water cold accumulation device 5 directly supplies cold water to freezer.
Cold water in water storage container 51 is directly fed to freezer through water storage container cooling pipe 52 and freezer cooling pipe 3, and cold water is in freezer
It is changed into hot water after heat exchange, hot water is returned in water storage container 51 through freezer return duct 4 and water storage container return pipe 53.
Because the temperature in evaporator 11 is than relatively low, good cooling results, if by freezer cooling pipe 3 and freezer return duct 4
Directly it is connected with evaporator 11, then is easily caused the water freezing in freezer cooling pipe 3, it is impossible to be circulated utilization.By setting
First heat exchanger 16, freezer cooling pipe 3 and freezer return duct 4 are connected with first heat exchanger 16, by cooling medium first
Delivery pipe 17 and the first return duct of cooling medium 18 are connected between first heat exchanger 16 and evaporator 11 and carry out heat transfer
Heat exchange, it is possible to prevente effectively from the water freezing in freezer cooling pipe 3, and water can effectively be cooled.
Thus, the freezer cooling equipment that the present invention is provided, has the advantages that：
1st, water storage container 51 directly feeds cold water in peak of power consumption in low power consumption cold-storage to High Temperature Refrigeratory, saves
The electricity charge.
2nd, in 5 cooling of water cold accumulation device, refrigeration unit 1, cooling tower 2 are stopped, and further save electric energy and electricity
Take.
It is preferred that as shown in figure 3, being provided with upper water distributor 511 in water storage container 51 and positioned at the lower section of upper water distributor 511
Lower water-dispensing device 512.
Water storage container return pipe 53 is connected with upper water distributor 511, and water storage container cooling pipe 52 is connected with lower water-dispensing device 512.
Be additionally provided with second heat exchanger 6 in water storage container 51, second heat exchanger 6 and evaporator liquid outlet 112 it
Between be connected with the second delivery pipe of cooling medium 61 for conveying cooling medium, second heat exchanger 6 and evaporator inlet 111
Between be provided with for heat exchange after cooling medium backflow the second return duct of cooling medium 62.
By the way that second heat exchanger 6 is placed in water storage container 51, second heat exchanger 6 can with water storage container 51
Water carry out heat exchange, to the water in a wide range of in water storage container 51 can an effective temperature-reducing, improve cooling-down effect, letter
Change structure, reduce 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 the second delivery pipe of cooling medium 61 is supplied to second heat exchanger 6, with storage
Water in water receptacle 51 is carried out after heat exchange, and cooling medium returns to evaporator 11 through the second return duct of cooling medium 62, is steamed
Hair device 11 is absorbed heat, and by cooling medium cooling down, the cooling medium after cooling is exported into defeated to cooling medium second afterwards
Send and utilization is circulated in pipe 61.
The second delivery pipe control valve 611 is provided with the second delivery pipe of cooling medium 61, is flowed back in cooling medium second
The second reflux tube valve 621 is provided with pipe 62, it is open close for control piper.
Thus, the cooling in the second delivery pipe of cooling medium 61 and the second return duct of cooling medium 62 in the present invention is situated between
Matter, is cooled down so that simple in construction using evaporator 11 to it, is easy to arrangement, and reduce cost.
Cooling medium in the second delivery pipe of cooling medium 61 and the second return duct of cooling medium 62 can for 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, carries out cooling down to water by heat exchanger, reduces 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 3-4, the first feed pipe 54 is additionally provided with lower water-dispensing device 512, in the first feed pipe 54
On be provided with water pump 7, water storage container cooling pipe 52 is connected with the delivery port 72 of water pump 7.
The second feed pipe 55 is also communicated between the water inlet 71 and upper water distributor 511 of water pump 7, in the water outlet of water pump 7
The 3rd feed pipe 56 is additionally provided between mouth 72 and lower water-dispensing device 512.
It is provided with first feed pipe 54 on first control valve 541, the second feed pipe 55 and is provided with the second control valve 551,
The 3rd control valve 561 is provided with 3rd feed pipe 56.
In cold-storage, sustainable supply cooling medium in the second delivery pipe of cooling medium 61, by second heat exchanger 6 with storing
Water in water receptacle 51 carries out the temperature of water in heat exchange, reduction water storage container 51, reaches water cold storage effect.
When letting cool, the cold water in water storage container 51 through lower water-dispensing device 512, the first feed pipe 54, water pump 7 and is stored successively
Water receptacle cooling pipe 52, freezer cooling pipe 3, which are delivered in High Temperature Refrigeratory, carries out heat exchange, and the hot water after heat exchange is through freezer
Return duct 4, water storage container return pipe 53, upper water distributor 511 are returned in water storage container 51.
Wherein, the characteristic of water is that density at 4 DEG C or so is maximum, and the water in water storage container 51 is when higher than 4 DEG C, temperature
High water can automatically float in water storage container 51, and now its buoyancy is upwards or towards the side of upper water distributor 511；In water storage container 51
Water when less than or equal to 4 DEG C, the high water of temperature can automatically sink in water storage container 51, towards the side of lower water-dispensing device 512.
In general, the water returned from water storage container return pipe 53 is more than 4 DEG C, now using the draining of upper water distributor 511,
The mode that lower water-dispensing device 512 is intake carries out cold-storage, and the buoyancy direction and water for enabling to the water entered in water storage container 51 are storing
The direction of inertia force in water receptacle 51 is consistent, beneficial to the thermocline thickness for reducing process of cool formation in water storage container 51, carries
High cold storage efficiency.
The draining of upper water distributor 511 is being used, the mode of operation when mode that lower water-dispensing device 512 is intake carries out cold-storage is：
As shown in figure 4, in the presence of water pump 7, the water of the inner top of water storage container 51 is discharged from upper water distributor 511, and is passed through
Second feed pipe 55, the 3rd feed pipe 56 and lower water-dispensing device 512 enter in water storage container 51, into the water warp in water storage container 51
Second heat exchanger 6 flows upwardly into the storage area of water storage container 51 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 72 of upper water distributor 511 and water pump 7 by the 4th feed pipe 57
It is logical, the 4th control valve 571 is provided with the 4th feed pipe 57.
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 512
Water, the mode that upper water distributor 511 is intake carries out cold-storage, is specially：
As shown in figure 5, in the presence of water pump 7, the water of the inner bottom part of water storage container 51 is discharged by lower water-dispensing device 512, it
Enter successively through the first feed pipe 54, the 4th feed pipe 57 and upper water distributor 511 in water storage container afterwards, into water storage container 51
Coolant-temperature gage low-density it is small, the surface for floating over high-temperature water is moved in the horizontal direction, formed density current, formed tiltedly in pure heat conduction form
Warm layer.
It is preferred that as in Figure 3-5, one end of the 3rd feed pipe 56 is connected to the first control valve 541 and lower water-dispensing device 512
Between, its other end is connected with water storage container cooling pipe 52.
One end of 4th feed pipe 57 is connected between the second control valve 551 and upper water distributor 511, its other end and retaining
Container cooling pipe 52 is connected.
It is arranged so as to, is easy to change working.The draining of upper water distributor 511 is being used, the mode that lower water-dispensing device 512 is intake is carried out
During cold-storage, the second delivery pipe control valve 611, the second reflux tube valve 621, second control control valve of valve 551 and the 3rd are opened
561, remaining valve Close All.
The draining of lower water-dispensing device 512 is being used, when the mode that upper water distributor 511 is intake carries out cold-storage, the second delivery pipe is being opened
Control valve 611, the second reflux tube valve 621, first control control valve 571 of valve 541 and the 4th, 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 1-2, the delivery pipe of liquid pump 19 and first is provided with the first delivery pipe of cooling medium 17
Control to be provided with the second delivery pipe control valve 611 in valve 171, the second delivery pipe of cooling medium 61.
The second delivery pipe of cooling medium 61 is connected with the first delivery pipe of cooling medium 17, and the second delivery pipe of cooling medium 61 connects
It is connected between the delivery pipe of liquid pump 19 and first control valve 171.
The first reflux tube valve 181 is provided with the first return duct of cooling medium 18, is flowed back in cooling medium second
The second reflux tube valve 621 is provided with pipe 62.
The second return duct of cooling medium 62 is connected with the first return duct of cooling medium 18, and the second return duct of cooling medium 62 connects
It is connected between the second reflux tube valve 621 and evaporator inlet 111.
In 5 cold-storage of water cold accumulation device, cooling tower 2 supplies water to condenser 13, now opens the first delivery pipe control valve
171st, the first reflux tube valve 181, freezer cooling management and control valve 31, freezer reflux tube valve 41, the control of the second delivery pipe
Valve 611, the second reflux tube valve 621 and liquid pump 19, by liquid pump 19 by by a part for the cooling down of evaporator 11
Cooling medium is delivered to first heat exchanger 16, afterwards supplies cold water made from first heat exchanger 16 by freezer cooling pipe 3
Utilized into freezer；It will be also situated between in this process by liquid pump 19 by the part cooling of the cooling down of evaporator 11
Matter is delivered to the second delivery pipe of cooling medium 61, is finally fed to second heat exchanger 6 and carries out to the water-cooled in water storage container 51
But cool.
When water cold accumulation device 5 is let cool, cooling pump 23, refrigeration unit 1 are now closed, freezer cooling management and control valve is opened
31st, freezer reflux tube valve 41, cooling management and control valve 521 and return pipe control valve 531, by water pump 7 by water storage container 5
Cold water be directly fed to freezer utilization, improve cooling effect.
Preferably, water pump 8 is provided with freezer cooling pipe 3, helps supply cold water into High Temperature Refrigeratory.
It is preferred that as shown in figure 3, second heat exchanger 6 is located between upper water distributor 511 and lower water-dispensing device 512, it is and close
The side of lower water-dispensing device 512, beneficial to increase cold storage capacity.
Upper strata may be frozen in water storage container 51, and second heat exchanger 6 is positioned close into the side of lower water-dispensing device 512, 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 513 in water storage container 51, for monitoring water temperature,
Preferably, multiple temperature sensors 513 can be arranged in vertical direction, the water temperature for monitoring every layer of water.
The first control control control control valve 571 of valve 561 and the 4th of valve the 551, the 3rd of valve 541, second is motor-driven valve.
Temperature sensor 513 can be controlled with the first control control control valve 561 and the 4th of valve the 551, the 3rd of valve 541, second
The signal of valve 571 connection processed.By temperature sensor 513 transmit come water temperature signal, it is possible to achieve automatically turn on or closure, and then
Realization is automatically controlled.
Certainly, valve or control valve on other pipelines can also be motor-driven valve.
When cold-storage is operated, such as temperature sensor 513 monitors that the water temperature at upper water distributor 511 is more than 4 DEG C, then by temperature
Signal transmission is to each motor-driven valve, and now, the second delivery pipe control valve 611, the second reflux tube valve 621, second control valve 551
Automatically turned on the 3rd control valve 561, remaining valve Close All, remaining valve is all automatic to close.
Monitor that the water temperature at upper water distributor 511 is less than or equal to 4 DEG C such as temperature sensor 513, then pass temperature signal
Each motor-driven valve is handed to, now, the second delivery pipe control valve 611, the second reflux tube valve 621, first control valve 541 and the 4th
Control valve 571 is automatically turned on, and remaining valve is all automatic to close.
As Figure 1-5, one embodiment of the invention provides a kind of control method of freezer cooling equipment, including following step
Suddenly：
The cold-storage of water cold accumulation device 5：
In 5 cold-storage of water cold accumulation device, cooling tower 2 keeps supplying water to condenser 13, and refrigeration unit 1 works, evaporator 11
Cold water supply in absorption refrigeration, freezer cooling pipe 3 is to freezer, and cold water is changed into hot water, hot water in freezer after heat exchange
The cold water entered through freezer return duct 4 in first heat exchanger 16 after progress heat exchange cooling down, cooling down is supplied again
Recycled to freezer cooling pipe 3.
The cooling of water cold accumulation device 5：
Refrigeration unit 1 is stopped, and water cold accumulation device 5 directly supplies cold water to freezer.
Cold water in water storage container 51 is directly fed to freezer, cold water through water storage container cooling pipe 52 and freezer cooling pipe 3
It is changed into hot water after heat exchange in freezer, hot water returns to water storage container through freezer return duct 4 and water storage container return pipe 53
In 51.
The control method for the freezer cooling equipment that the present invention is provided, has the advantages that：
1st, water storage container 51 directly feeds cold water in peak of power consumption in low power consumption cold-storage to High Temperature Refrigeratory, saves
The electricity charge.
2nd, in 5 cooling of water cold accumulation device, refrigeration unit 1, cooling tower 2 are stopped, and further save electric energy and electricity
Take.
It is preferred that in 5 cold-storage of water cold accumulation device, passing through the second heat exchanger 6 and water storage container in water storage container 51
Water in 51 carries out the temperature of water in heat exchange, reduction water storage container 51.By the way that second heat exchanger 6 is placed on into water storage container
In 51, second heat exchanger 6 can carry out heat exchange with the water in water storage container 51, in a wide range of in water storage container 51
Water can an effective temperature-reducing, improve cooling-down effect, simplify structure, reduce cost.
It is preferred that during 5 cold-storage of water cold accumulation device, if the temperature of the water at upper water distributor 511 exceedes preset temperature, adopting
With the draining of upper water distributor 511, the mode that lower water-dispensing device 512 is intake carries out cold-storage.
If the temperature of the water at upper water distributor 511 is less than or equal to preset temperature, using the draining of lower water-dispensing device 512,
The mode that upper water distributor 511 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 51 at different temperature
Less mesolimnion, improve cold accumulation container cold storage efficiency.
It is preferred that as shown in figure 3, using the draining of upper water distributor 511, the mode that lower water-dispensing device 512 is intake carries out cold-storage
When：
The inertia force of water in water storage container 51 is towards the side of upper water distributor 511.
In the presence of water pump 7, the water of the inner top of water storage container 51 is through the second feed pipe 55, the 3rd feed pipe 56 and lower cloth
Hydrophone 512 enters in water storage container, so as to keep so that the density of the water entered in water storage container 51 after the heat exchange is more than
Density before heat exchange, the water for making density big remains in the lower section of water storage container.
As shown in figure 4, the draining of lower water-dispensing device 512 is being used, when the mode that upper water distributor 511 is intake carries out cold-storage：
The inertia force of water in water storage container 51 is towards the side of lower water-dispensing device 512.
In the presence of water pump 7, the water of the inner bottom part of water storage container 51 is through the first feed pipe 54, the 4th feed pipe 57 and upper cloth
Hydrophone 511 enters in water storage container 51, so as to keep causing that the density of water after the heat exchange into water storage container 51 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 the second delivery pipe of cooling medium 61,
Water in water storage container 51 can finally reach 0 degree Celsius, and allow to form frozen water admixture.Cooling medium can be second two
Alcohol or salt solution, the temperature of cooling medium be able to will not freeze below 0 DEG C, so that the water in water storage container 51 can reach
Frozen water admixture, plays good cold accumulation effects.The temperature of cooling medium is preferably the refrigeration between -6 DEG C to -4 DEG C
It is good.Water in water storage container 51 is when reaching frozen water admixture, and its temperature is 0 DEG C, improves storage cold, and can realize quick
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 (13)
1. a kind of freezer cooling equipment, it is characterised in that including refrigeration unit, cooling tower, freezer cooling pipe, freezer return duct and
First heat exchanger；
The refrigeration unit includes the evaporator being sequentially connected with, compressor, condenser and expansion valve；
The condenser includes the condenser water inlet and leaving condenser water mouthful of connection；
The cooling tower to include and be provided with cooling on cooling tower feed pipe and cooling tower return pipe, the cooling tower feed pipe
Pump；
The cooling tower feed pipe is connected with the condenser water inlet, the cooling tower return pipe and the leaving condenser water mouthful
Connection；
The evaporator includes evaporator inlet and the evaporator liquid outlet connected with the evaporator inlet；
The delivery pipe of cooling medium first, first heat are provided between the first heat exchanger and the evaporator liquid outlet
The return duct of cooling medium first is provided between exchanger and the evaporator inlet；
The freezer cooling pipe and the freezer return duct are connected with the first heat exchanger respectively；
Wherein, the freezer cooling equipment also includes water cold accumulation device；
The water cold accumulation device to include and be provided with water storage container cooling pipe and water storage container on water storage container, the water storage container
Return pipe；
The water storage container cooling pipe is connected with the freezer cooling pipe, the water storage container return pipe and the freezer return duct
Connection.
2. freezer cooling equipment according to claim 1, it is characterised in that be provided with upper water distributor in the water storage container
And lower water-dispensing device；
The water storage container return pipe is connected with the upper water distributor, and the water storage container cooling pipe connects with the lower water-dispensing device
It is logical；
Be additionally provided with second heat exchanger in the water storage container, the second heat exchanger and the evaporator liquid outlet it
Between be connected with the delivery pipe of cooling medium second for conveying cooling medium, the second heat exchanger and the evaporator feed liquor
The return duct of cooling medium second of cooling medium backflow after being provided between mouthful for heat exchange.
3. freezer cooling equipment according to claim 2, it is characterised in that be additionally provided with first on the lower water-dispensing device
Feed pipe, is provided with water pump on first feed pipe, and the water storage container cooling pipe is connected with the delivery port of the water pump；
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.
4. freezer cooling equipment according to claim 3, it is characterised in that the water outlet of the upper water distributor and the water pump
Also connected between mouthful by the 4th feed pipe, the 4th control valve is provided with the 4th feed pipe.
5. freezer cooling equipment according to claim 4, it is characterised in that one end of the 3rd feed pipe is connected to institute
State between the first control valve and the lower water-dispensing device, its other end is connected with the water storage container cooling pipe；
One end of 4th feed pipe be connected to it is described second control valve and the upper water distributor between, its other end with it is described
Water storage container cooling pipe is connected.
6. freezer cooling equipment according to claim 2, it is characterised in that set in the delivery pipe of cooling medium first
It is equipped with liquid pump and the first delivery pipe control valve, the delivery pipe of cooling medium second and is provided with the second delivery pipe control valve；
The delivery pipe of cooling medium second is connected with the delivery pipe of cooling medium first, the delivery pipe of cooling medium second
It is connected between the liquid pump and first delivery pipe control valve；
The first reflux tube valve is provided with the return duct of cooling medium first, in the return duct of cooling medium second
On be provided with the second reflux tube valve；
The return duct of cooling medium second is connected with the return duct of cooling medium first, the return duct of cooling medium second
It is connected between second reflux tube valve and the evaporator inlet.
7. freezer cooling equipment according to claim 2, it is characterised in that the heat exchanger is located at the upper water distributor
Between the lower water-dispensing device, and close to the lower water-dispensing device side.
8. the freezer cooling equipment according to any claim in claim 1-7, it is characterised in that hold in the retaining
Multiple temperature sensors are provided with device.
9. a kind of control method of freezer cooling equipment, it is characterised in that comprise the following steps：
Water cold accumulation device cold-storage：
In water cold accumulation device cold-storage, cooling tower keeps supplying water to condenser, and refrigeration unit work, evaporator absorption refrigeration is cold
Cold water supply in the cooling pipe of storehouse is to freezer, and cold water is changed into hot water in freezer after heat exchange, and hot water is through freezer return duct
The cold water after heat exchange cooling down, cooling down is carried out into first heat exchanger to supply again to freezer cooling Guan Xun
Ring is utilized；
Water cold accumulation device cooling：
Refrigeration unit is stopped, and water cold accumulation device directly supplies cold water to freezer；
Cold water in water storage container is directly fed to freezer through water storage container cooling pipe and freezer cooling pipe, and cold water is passed through in freezer
Cross and be changed into hot water after heat exchange, hot water is returned in water storage container through freezer return duct and water storage container return pipe.
10. control method according to claim 9, it is characterised in that in water cold accumulation device cold-storage, pass through water storage container
Water in interior heat exchanger and water storage container carries out the temperature of water in heat exchange, reduction water storage container.
11. control method according to claim 10, it is characterised in that during 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.
12. control method according to claim 11, it is characterised in that using upper water distributor draining, lower water-dispensing device enters
When the mode of water 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 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 less than close before heat exchange
Degree.
13. the control method according to claim 9-12 any claims, it is characterised in that
In cold-storage, cooling medium of the delivery temperature below 0 DEG C into the delivery pipe of cooling medium second；
Water in the water storage container can finally reach 0 degree Celsius.
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| CN201710253129.7A CN106958977A (en) | 2017-04-18 | 2017-04-18 | A kind of freezer cooling equipment and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253129.7A CN106958977A (en) | 2017-04-18 | 2017-04-18 | A kind of freezer cooling equipment and its control method |
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|---|---|
| CN106958977A true CN106958977A (en) | 2017-07-18 |
Family
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| CN201710253129.7A Pending CN106958977A (en) | 2017-04-18 | 2017-04-18 | A kind of freezer cooling equipment and its control method |
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| CN108910317A (en) * | 2018-06-29 | 2018-11-30 | 中车石家庄车辆有限公司 | Fill cool equipment |
| CN108955013A (en) * | 2018-06-29 | 2018-12-07 | 丁玉龙 | A kind of flowing freezer |
| CN109017525A (en) * | 2018-06-29 | 2018-12-18 | 丁玉龙 | A kind of cold chain transportation vehicle |
| CN109163592A (en) * | 2018-06-29 | 2019-01-08 | 中车石家庄车辆有限公司 | It is a kind of to fill cold control method for energy-storage units and fill device for cooling |
| CN109229996A (en) * | 2018-06-29 | 2019-01-18 | 中车石家庄车辆有限公司 | A kind of storage and transport device |
| CN109405391A (en) * | 2018-10-11 | 2019-03-01 | 丁玉龙 | Fill cool equipment and the cold supply system including the equipment |
| CN111667637A (en) * | 2020-05-11 | 2020-09-15 | 中外运冷链物流有限公司 | Method for calculating electricity charge of single refrigeration house of centralized refrigeration system |
| CN112867341A (en) * | 2020-12-10 | 2021-05-28 | 国网浙江省电力有限公司双创中心 | Container type liquid cooling data center |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108910317A (en) * | 2018-06-29 | 2018-11-30 | 中车石家庄车辆有限公司 | Fill cool equipment |
| CN108955013A (en) * | 2018-06-29 | 2018-12-07 | 丁玉龙 | A kind of flowing freezer |
| CN109017525A (en) * | 2018-06-29 | 2018-12-18 | 丁玉龙 | A kind of cold chain transportation vehicle |
| CN109163592A (en) * | 2018-06-29 | 2019-01-08 | 中车石家庄车辆有限公司 | It is a kind of to fill cold control method for energy-storage units and fill device for cooling |
| CN109229996A (en) * | 2018-06-29 | 2019-01-18 | 中车石家庄车辆有限公司 | A kind of storage and transport device |
| WO2020001506A1 (en) * | 2018-06-29 | 2020-01-02 | 中车石家庄车辆有限公司 | Cold chain transport vehicle |
| WO2020001508A1 (en) * | 2018-06-29 | 2020-01-02 | 中车石家庄车辆有限公司 | Control method for supplying cold energy to energy storage unit, and cold energy supplying device |
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| CN112867341A (en) * | 2020-12-10 | 2021-05-28 | 国网浙江省电力有限公司双创中心 | Container type liquid cooling data center |
| CN112867341B (en) * | 2020-12-10 | 2023-05-30 | 国网浙江省电力有限公司双创中心 | Container type liquid cooling data center |
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Application publication date: 20170718 |