CN110160287B - Cold accumulation liquid distribution method of cold supply distributor and refrigeration method of refrigeration house system - Google Patents

Cold accumulation liquid distribution method of cold supply distributor and refrigeration method of refrigeration house system Download PDF

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Publication number
CN110160287B
CN110160287B CN201810150822.6A CN201810150822A CN110160287B CN 110160287 B CN110160287 B CN 110160287B CN 201810150822 A CN201810150822 A CN 201810150822A CN 110160287 B CN110160287 B CN 110160287B
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cold accumulation
cold
valve
electromagnetic valve
way valve
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CN110160287A (en
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李宁
李志辉
师清木
王先
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China IPPR International Engineering Co Ltd
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China IPPR International Engineering Co Ltd
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    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements

Abstract

The invention provides a cold accumulation liquid distribution method of a cold supply distributor, which utilizes a first cold accumulation liquid distribution pipeline, a second cold accumulation liquid distribution pipeline, a third cold accumulation liquid distribution pipeline, a fourth cold accumulation liquid distribution pipeline and a fifth cold accumulation liquid distribution pipeline to distribute cold accumulation liquid to a multi-temperature-zone refrigeration house system, receives cold accumulation liquid of a first cold accumulation tank, a second cold accumulation tank, a third cold accumulation tank and a fourth cold accumulation tank of the multi-temperature-zone refrigeration house system and distributes the received cold accumulation liquid to a quick freezing house, a refrigeration house and a fresh-keeping house of the multi-temperature-zone refrigeration house system; by adopting the cold accumulation liquid distribution method of the cold supply distributor, the refrigeration storage system can flexibly carry out mode conversion of each system, and flexibly carry out mode conversion according to the requirements of different seasons on the temperature of the refrigeration storage with different temperature areas, thereby being capable of being changed into an ultra-low temperature storage and a high temperature storage without increasing investment. Meanwhile, the refrigerating unit does not need to be started frequently, and the energy consumption of the system is low. The invention also discloses a refrigeration method of the multi-temperature-zone cooling system.

Description

Cold accumulation liquid distribution method of cold supply distributor and refrigeration method of refrigeration house system
Technical Field
The invention relates to a cold accumulation liquid distribution method of a cold supply distributor, in particular to a cold accumulation liquid distribution method of a cold supply distributor for a multi-temperature-zone refrigeration house system.
Background
The traditional refrigeration mode of the refrigeration house is that each refrigeration house corresponds to one or more refrigeration unit, each refrigeration house corresponds to one refrigeration mode or refrigeration temperature, the temperature interval is a fixed mode, and the refrigeration mode can not be changed into other temperature areas and can not be changed into other purposes. When seasonal changes need other temperature zone banks, there is no other way except for building. Moreover, the whole refrigeration pipeline is a high-pressure pipeline, so that the investment limit is large and the later maintenance is difficult. Fig. 1A to 1E are schematic process diagrams of a refrigeration method of a refrigeration storage system in the prior art, as shown in fig. 1A, an ultra-low temperature/quick-freeze storage 502 at-65 ℃ to-45 ℃ is independently controlled by a refrigeration unit 500, the refrigeration unit 500 exchanges heat with the ultra-low temperature/quick-freeze storage 502 at-65 ℃ to-45 ℃ through a refrigeration heat exchanger 501, and the whole area is a pressure-bearing area. As shown in figure 1B, a-25 to-18 ℃ freezer 503 is independently controlled by a refrigerating unit 500, the refrigerating unit 500 exchanges heat with the-25 to-18 ℃ freezer 503 through a refrigerating heat exchanger 501, and the whole area is a pressure-bearing area. As shown in fig. 1C, the 0-10 ℃ cold preservation 504 is independently controlled by one refrigerating unit 500, the refrigerating unit 500 exchanges heat with the 0-10 ℃ cold preservation 504 through a refrigerating heat exchanger 501, and the whole area is a pressure-bearing area. As shown in fig. 1D, the 0-15 ℃ refrigerator 505 is controlled by one refrigerating unit 500, the refrigerating unit 500 exchanges heat with the 0-15 ℃ refrigerator 505 through a refrigerating heat exchanger 501, and the whole area is a pressure-bearing area. As shown in fig. 1E, the office area 506 at 0-15 ℃ is independently controlled by one refrigeration unit, the refrigeration unit 500 exchanges heat with the office area 506 at 0-15 ℃ through the refrigeration heat exchanger 501, and the whole area is a pressure-bearing area.
It can be seen that: according to the existing refrigeration method of the refrigeration house system, the refrigeration load is increased along with the loss of refrigeration quantity of goods in and out, in order to adjust the load, the refrigeration host machine needs to be frequently started, so that the refrigeration host machine runs under a severe working condition, the efficiency is low, and the service life of the refrigeration host machine is shortened due to frequent starting and stopping of the refrigeration host machine. Frequent starting of the refrigeration host machine also causes discontinuous cooling process and long cooling time, which is not beneficial to accurately controlling the temperature of the warehouse. In order to maintain the temperature of the storage, the refrigeration main machine operates in a low-load state with low energy efficiency for a long time, so that the operation efficiency of the refrigeration unit becomes low, but the refrigeration unit does not operate in an optimal efficiency state, and further the load peak-valley difference is large.
The evaporator is prone to non-uniform frost due to large temperature load change, and the system load is increased after a defrosting period. Meanwhile, the peak regulation capacity of the refrigeration house under the existing condition is weak, the compressors are all configured according to the maximum load, and the load efficiency of the refrigeration host is low due to energy regulation, such as hot gas bypass and the like, under the condition of partial load.
In addition, in the conventional technology, the temperature interval for each refrigerator is constant, and cannot be changed to a temperature interval for other purposes. When a plurality of storehouses are used, the number of refrigerating units is large, and the cost is high.
In addition, the refrigeration pipeline of the whole storage area is a high-pressure pipeline, and the range of the high-pressure pipeline is too wide, so that the high-pressure pipeline is not beneficial to fire fighting and maintenance. Once leakage occurs, the refrigerator cannot be maintained through a rapid means, and the use of the whole refrigerator is further influenced; and leakage of refrigerant is liable to cause danger.
Meanwhile, the traditional air cooling refrigeration mode has high energy consumption and cost, large dry consumption of stored commodities and no guarantee on quality. The air cooler cooling system and the automatic defrosting derived from the air cooler cooling system are the main sources of frequent and large fluctuation of the temperature of the refrigeration house.
The cold supply distributor distributes cold quantity for the refrigeration house system, and firstly, a cold accumulation liquid method of the cold supply distributor needs to be developed to flexibly and reasonably distribute cold accumulation liquid so as to construct the whole refrigeration house system, reduce the load of the refrigeration house system and improve the efficiency of a refrigeration host machine.
Disclosure of Invention
The invention aims to provide a cold accumulation liquid distribution method of a cold supply distributor and a refrigeration method of a multi-temperature-zone refrigeration house system, and aims to overcome the defects that the refrigeration load is increased and the operation efficiency of a refrigeration host is low in the refrigeration method of the multi-warehouse multi-machine refrigeration house system in the prior art.
In order to achieve the above object, the present invention provides a cold accumulation liquid distribution method for a cold supply distributor, wherein the distribution method uses a first cold accumulation liquid distribution pipeline, a second cold accumulation liquid distribution pipeline, a third cold accumulation liquid distribution pipeline, a fourth cold accumulation liquid distribution pipeline and a fifth cold accumulation liquid distribution pipeline to distribute cold accumulation liquid to a multi-temperature-zone freezer system, receives cold accumulation liquids of a first cold accumulation tank, a second cold accumulation tank, a third cold accumulation tank and a fourth cold accumulation tank of the multi-temperature-zone freezer system, and distributes the received cold accumulation liquids to a quick freezer, a refrigerator and a fresh-keeping warehouse of the multi-temperature-zone freezer system;
one end of the first cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the first cold accumulation liquid distribution pipeline is connected with the quick-freezing warehouse, and the first cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 2 and a one-way valve 3 along the direction from the first cold accumulation tank to the quick-freezing warehouse; when the quick-freezing warehouse needs to supply cold, the liquid circulation pressure pump 1 is started, the electromagnetic valve 2 is opened, and the liquid circulation pressure pump is conveyed into the quick-freezing warehouse through the one-way valve 3;
one end of the second cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressure pump 20, the other end of the second cold accumulation liquid distribution pipeline is connected with the refrigerator, and the second cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 21, an electromagnetic valve 22 and a one-way valve 23 along the direction from the second cold accumulation tank to the refrigerator; when the freezer needs to supply cold, the liquid circulation pressurization pump 20 is started, the electromagnetic valve 22 is opened, and the cold accumulation liquid is conveyed into the freezer through the one-way valve 21 and the one-way valve 23;
one end of the third cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressurization pump 30, the other end of the third cold accumulation liquid distribution pipeline is connected with the refrigerator, and the third cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 31, an electromagnetic valve 32 and a one-way valve 33 along the direction from the third cold accumulation tank to the refrigerator; when the refrigerator needs cooling, the liquid circulation pressurization pump 30 is started, the electromagnetic valve 32 is opened, and the liquid circulation pressurization pump is conveyed into the refrigerator through the one-way valve 31 and the one-way valve 33; and
one end of the fourth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank through a liquid circulation pressure pump 40, the other end of the fourth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the fourth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 41, an electromagnetic valve 42 and a one-way valve 43 along the direction from the fourth cold accumulation tank to the fresh-keeping warehouse; when the fresh-keeping warehouse needs to supply cold, the liquid circulation pressurization pump 40 is started, the electromagnetic valve 42 is opened, and the cold is conveyed into the fresh-keeping warehouse through the one-way valve 41 and the one-way valve 43.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further includes an office area, and the distribution method utilizes a fifth cold accumulation liquid distribution pipeline to distribute the cold accumulation liquid to the office area; one end of the fifth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank through a liquid circulation pressurization pump 40, the other end of the fifth cold accumulation liquid distribution pipeline is connected with an office area, and the fifth cold accumulation liquid distribution pipeline is sequentially provided with the check valve 41, the electromagnetic valve 44 and the check valve 45 along the direction from the fourth cold accumulation tank to the office area; when the office area needs cooling, the liquid circulation pressurization pump 40 is started, the electromagnetic valve 44 is opened, and the liquid is conveyed into the office area through the one-way valve 41 and the one-way valve 45.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by using a sixth cold accumulation liquid distribution pipeline; one end of the sixth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the sixth cold accumulation liquid distribution pipeline is connected with the refrigerator, and the sixth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, a throttling speed limiting valve 5, an electromagnetic valve 6, a one-way valve 7, an electromagnetic valve 22 and a one-way valve 23 along the direction from the first cold accumulation tank to the refrigerator; when the quick-freezing warehouse does not need to supply cold and the freezer needs to supply cold, and the freezer corresponds when not needing cold accumulation liquid in the second cold accumulation jar, liquid circulation force (forcing) pump 1 starts, and solenoid valve 4, solenoid valve 6, solenoid valve 22 open, and cold accumulation liquid passes through adjustable velocity of flow limiting valve 5 the check valve 7 check valve 23 is carried to carry out the cold supply in the freezer, wherein, check valve 21 prevents cold accumulation liquid to get into the second cold accumulation jar, and, according to the temperature demand in the freezer, through adjusting the volume that adjustable velocity of flow limiting valve 5 adjusted cold accumulation liquid gets into in the freezer, and then realize the constancy of temperature in the freezer.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by using a seventh cold accumulation liquid distribution pipeline; one end of the seventh cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the seventh cold accumulation liquid distribution pipeline is connected with the refrigerator, and the seventh cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 8, a one-way valve 9, an electromagnetic valve 32 and a one-way valve 33 along the direction from the first cold accumulation tank to the refrigerator; when the quick-freeze storehouse does not need the cooling and the freezer needs the cooling, and when the freezer does not need cold accumulation liquid in corresponding cold accumulation jar, liquid circulation force (forcing) pump 1 starts, and solenoid valve 4, solenoid valve 8, solenoid valve 32 open, and cold accumulation liquid is carried extremely through adjustable velocity of flow limiting valve 5, check valve 9, check valve 33 the freezer carries out the cooling, wherein, check valve 27 prevents cold accumulation liquid to get into second cold accumulation liquid distribution pipeline, check valve 31 prevents cold accumulation liquid to get into the third cold accumulation jar, according to the temperature change demand in the freezer, through the volume of adjusting entering cold accumulation liquid in the freezer of adjusting adjustable velocity of flow limiting valve 5, and then realize the invariant of temperature in the freezer.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by using an eighth cold accumulation liquid distribution pipeline; one end of the eighth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressurization pump 20, the other end of the eighth cold accumulation liquid distribution pipeline is connected with the refrigerator, and the eighth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 21, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 26, a one-way valve 27, an electromagnetic valve 32 and a one-way valve 33 along the direction from the second cold accumulation tank to the refrigerator; when the refrigerator does not need to be cooled and the cold storage needs to be cooled, and the cold storage does not need cold storage liquid in the cold storage tank corresponding to the refrigerator, the liquid circulation pressure pump 20 is started, the electromagnetic valve 24, the electromagnetic valve 26 and the electromagnetic valve 32 are opened, the cold storage liquid is conveyed to the refrigerator through the one-way valve 21, the adjustable flow rate limiting valve 25, the one-way valve 27 and the one-way valve 33 to be cooled, wherein the one-way valve 31 prevents the cold storage liquid from entering the third cold storage tank, and the amount of the cold storage liquid entering the refrigerator is adjusted by adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the refrigerator, so that the temperature in the refrigerator is constant.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by using a ninth cold accumulation liquid distribution pipeline; one end of the ninth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressure pump 20, the other end of the ninth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the ninth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 21, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 28, a one-way valve 29, an electromagnetic valve 42 and a one-way valve 43 along the direction from the second cold accumulation tank to the fresh-keeping warehouse; when the freezer does not need to supply cold and the fresh-keeping storehouse needs to supply cold, and when no required cold accumulation liquid is in the fourth cold accumulation tank, the liquid circulation pressure pump 20 is started, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 42 are opened, the cold accumulation liquid is conveyed to the fresh-keeping storehouse for cooling through the one-way valve 21, the adjustable flow rate limiting valve 25, the one-way valve 29 and the one-way valve 43, wherein the one-way valve 41 prevents the cold accumulation liquid from entering the fourth cold accumulation tank, the one-way valve 36 prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the fresh-keeping storehouse is adjusted through adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the fresh-keeping storehouse, so that the temperature in the fresh.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by utilizing a tenth cold accumulation liquid distribution pipeline; one end of the tenth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressure pump 20, the other end of the tenth cold accumulation liquid distribution pipeline is connected with the office area, and the tenth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 21, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 28, a one-way valve 29, an electromagnetic valve 44 and a one-way valve 45 along the direction from the second cold accumulation tank to the office area; when the freezer does not need the cooling and office area needs the cooling, just when there is not required cold accumulation liquid in the fourth cold accumulation jar, hydrologic cycle force (forcing) pump 20 starts, and solenoid valve 24, solenoid valve 28, solenoid valve 44 open, and cold accumulation liquid passes through check valve 21, adjustable velocity of flow limiting valve 25, check valve 29, check valve 45 and carries to office area and carry out the cooling, and wherein, check valve 41 prevents cold accumulation liquid to get into the fourth cold accumulation jar, and check valve 36 prevents cold accumulation liquid to get into third cold accumulation liquid distribution pipeline to, according to the temperature demand in the office area, through the volume of adjusting the cold accumulation liquid that gets into office area of adjustable velocity of flow limiting valve 25, and then realize the constancy of temperature in the office area.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by utilizing an eleventh cold accumulation liquid distribution pipeline; one end of the eleventh cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressure pump 30, the other end of the eleventh cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the eleventh cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve 31, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 42 and a one-way valve 43 along the direction from the third cold accumulation tank to the fresh-keeping warehouse; when the cold storage does not need to be cooled and the fresh-keeping storehouse needs to be cooled, and when no required cold accumulation liquid exists in the fourth cold accumulation tank, the liquid circulation pressure pump 30 is started, the electromagnetic valve 34 and the electromagnetic valve 42 are opened, and the cold accumulation liquid is conveyed to the fresh-keeping storehouse for cooling through the one-way valve 31, the adjustable flow rate limiting valve 35, the one-way valve 36 and the one-way valve 43, wherein the one-way valve 41 prevents the cold accumulation liquid from entering the fourth cold accumulation tank, the one-way valve 29 prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the fresh-keeping storehouse is adjusted through the adjustable flow rate limiting valve 25 according to the temperature requirement in the fresh-keeping storehouse, so that the temperature.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigeration house system by utilizing a twelfth cold accumulation liquid distribution pipeline; wherein, one end of the twelfth cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressure pump 30, the other end is connected with the office area, and the twelfth cold accumulation liquid distribution pipeline is provided with a one-way valve 31, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 44 and a one-way valve 45 in sequence along the direction from the third cold accumulation tank to the office area; when the cold supply is not needed in the refrigerator and the office area needs the cold supply, just when there is not required cold accumulation liquid in the fourth cold accumulation tank, the liquid circulation pressure pump 30 starts, the solenoid valve 34, the solenoid valve 44 are opened, and the liquid circulation pressure pump is conveyed to the office area for cold supply through the check valve 31, the adjustable flow rate limiting valve 35, the check valve 36, the check valve 45, and the check valve 41 prevents the cold accumulation liquid from entering the fourth cold accumulation tank, the check valve 29 prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and according to the temperature demand in the office area, the amount of the cold accumulation liquid in the office area is adjusted by adjusting the adjustable flow rate limiting valve 35, and then the constancy of the temperature in the office area is realized.
Preferably, the cold accumulation liquid distribution method of the cold supply distributor further comprises the step of distributing the cold accumulation liquid to the multi-temperature-zone refrigerator system by utilizing a thirteenth cold accumulation liquid distribution pipeline, a fourteenth cold accumulation liquid distribution pipeline, a fifteenth cold accumulation liquid distribution pipeline, a sixteenth cold accumulation liquid distribution pipeline, a seventeenth cold accumulation liquid distribution pipeline and an eighteenth cold accumulation liquid distribution pipeline;
one end of the thirteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the thirteenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the thirteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 6, a one-way valve 7, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 26, a one-way valve 27, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 42 and a one-way valve 43 along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
the cold storage liquid directly supplies cold to the fresh-keeping warehouse through the first cold storage tank, wherein the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 26, the electromagnetic valve 34 and the electromagnetic valve 42 are used, and the cold storage liquid enters the fresh-keeping warehouse through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the adjustable flow rate limiting valve 35, the one-way valve 7, the one-way valve 27, the one-way valve 36 and the one-way valve 43 to supply cold;
one end of the fourteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the fourteenth cold accumulation liquid distribution pipeline is connected with the office area, and the fourteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 6, a one-way valve 7, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 26, a one-way valve 27, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 44 and a one-way valve 45 along the direction from the first cold accumulation tank to the office area;
directly supplying cold to an office area through a first cold accumulation tank, starting a liquid circulation pressure pump 1, starting an electromagnetic valve 4, an electromagnetic valve 6, an electromagnetic valve 24, an electromagnetic valve 26, an electromagnetic valve 34 and an electromagnetic valve 44, and allowing cold accumulation liquid to enter the office area through an adjustable flow rate limiting valve 5, an adjustable flow rate limiting valve 25, an adjustable flow rate limiting valve 35, a one-way valve 7, a one-way valve 27, a one-way valve 36 and a one-way valve 45 for cold supply;
one end of the fifteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the fifteenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the fifteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 6, a one-way valve 7, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 28, a one-way valve 29, an electromagnetic valve 42 and a one-way valve 43 along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
directly supplying cold to the fresh-keeping warehouse through the first cold accumulation tank, starting the liquid circulation pressure pump 1, starting the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 42, and allowing cold accumulation liquid to enter the fresh-keeping warehouse through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the one-way valve 7, the one-way valve 29 and the one-way valve 43 for cold supply;
one end of the sixteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the sixteenth cold accumulation liquid distribution pipeline is connected with the office area, and the sixteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 6, a one-way valve 7, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 28, a one-way valve 29, an electromagnetic valve 44 and a one-way valve 45 along the direction from the first cold accumulation tank to the office area;
directly supplying cold to an office area through a first cold accumulation tank, starting a liquid circulation pressure pump 1, starting an electromagnetic valve 4, an electromagnetic valve 6, an electromagnetic valve 24, an electromagnetic valve 28 and an electromagnetic valve 44, and allowing cold accumulation liquid to enter the office area through an adjustable flow rate limiting valve 5, an adjustable flow rate limiting valve 25, a one-way valve 7, a one-way valve 29 and a one-way valve 45 for cold supply;
one end of the seventeenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the seventeenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the seventeenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 8, a one-way valve 9, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 42 and a one-way valve 43 along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
directly supplying cold to the fresh-keeping warehouse through a first cold accumulation tank, starting a liquid circulation pressure pump 1, starting an electromagnetic valve 4, an electromagnetic valve 8, an electromagnetic valve 34 and an electromagnetic valve 42, and allowing cold accumulation liquid to enter the fresh-keeping warehouse through an adjustable flow rate limiting valve 5, an adjustable flow rate limiting valve 35, a one-way valve 9, a one-way valve 36 and a one-way valve 43 for cold supply;
one end of the eighteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump 1, the other end of the eighteenth cold accumulation liquid distribution pipeline is connected with the office area, and the eighteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 4, an adjustable flow rate limiting valve 5, an electromagnetic valve 8, a one-way valve 9, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, an electromagnetic valve 44 and a one-way valve 45 along the direction from the first cold accumulation tank to the office area;
directly supply cold for office areas through a first cold accumulation tank, starting a liquid circulation pressure pump 1, starting a solenoid valve 4, a solenoid valve 8, a solenoid valve 34 and a solenoid valve 44, and allowing cold accumulation liquid to enter the office areas through an adjustable flow rate limiting valve 5, an adjustable flow rate limiting valve 35, a check valve 9, a check valve 36 and a check valve 45 for cold supply.
Preferably, the quick-freezing storage, the refrigerating storage and the fresh-keeping storage can be changed into any one of temperature zone modes of the quick-freezing storage, the refrigerating storage and the fresh-keeping storage, and when an office area is included, the office area can be changed into any one of temperature zone modes of the quick-freezing storage, the refrigerating storage and the fresh-keeping storage.
In order to achieve the purpose, the invention also provides a refrigeration method of the multi-temperature-zone refrigeration house system, and the cold accumulation liquid is distributed by using the cold accumulation liquid distribution method of the cold supply distributor.
Preferably, the refrigeration method of the multi-temperature-zone refrigeration house system is used for refrigerating a quick-freezing house, a cold storage house, a fresh-keeping house and an office area through a refrigerating unit.
The cold accumulation liquid distribution method of the cold supply distributor has the following technical effects:
1. the cold accumulation liquid distribution method of the invention forms a plurality of cold supply lines, can distribute the cold accumulation liquid to a required refrigeration house according to requirements, and can distribute the cold accumulation liquid in other cold accumulation tanks to the refrigeration house through each cold supply line when the refrigeration house has no cold accumulation liquid in corresponding cold accumulation tanks, thereby realizing flexible distribution of the cold accumulation liquid according to requirements.
2. Through the distribution of the cold supply distributor, the cold accumulation liquid can be recycled in each refrigeration house and cold accumulation tank, and a stable cold supply mode is formed.
3. By adopting the cold accumulation liquid distribution method of the cold supply distributor, the refrigeration storage system can flexibly carry out mode conversion of each system, and flexibly carry out mode conversion according to the requirements of different seasons on the temperature of the refrigeration storage with different temperature areas, thereby being capable of being changed into an ultra-low temperature storage and a high temperature storage without increasing investment. Meanwhile, the refrigerating unit does not need to be started frequently, and the energy consumption of the system is low.
Drawings
Fig. 1A to 1E are schematic diagrams of a prior art freezer refrigeration system;
fig. 2 is a process schematic diagram of a cold storage liquid dispensing method of the cold supply dispenser of the present invention;
FIG. 3 is a schematic view of a multi-temperature zone refrigeration storage system utilizing the cold supply distributor cold accumulation liquid distribution method of the present invention;
FIG. 4 is a schematic view of a liquid return distributor in a multi-temperature-zone refrigeration storage system using the cold-supply distributor cold-accumulation liquid distribution method of the present invention;
fig. 5 is a schematic diagram of the replacement of the cold storage temperature region of the multi-temperature-region cold storage system adopting the cold storage liquid distribution method of the cold supply distributor of the invention.
Wherein, the reference numbers:
100: refrigerating unit
101: main refrigerating unit
102: auxiliary refrigerating unit
200: refrigeration heat exchanger
110: first cold accumulation tank
120: second cold accumulation tank
130: third cold accumulation tank
140: fourth cold accumulation tank
150: quick-freezing warehouse
160: refrigerator
170: refrigerator with a door
180: fresh-keeping storehouse
190: office area
300: cold supply distributor
400: liquid return distributor
1. 20, 30, 40: circulating pressure pump
3. 7, 9, 21, 23, 27, 29, 31, 33, 36, 41, 43, 45: one-way valve
2. 4, 6, 8, 22, 24, 26, 28, 32, 34, 42, 44: electromagnetic valve
5. 25, 35: adjustable flow rate limiting valve
Detailed Description
Fig. 2 is a schematic process diagram of a cold storage liquid distribution method of a cold supply distributor according to the present invention, and as shown in fig. 2, the cold storage liquid distribution method of the present invention is used for cold storage liquid distribution of a multi-temperature-zone freezer system, where the freezer system may include a refrigeration unit 100, a first cold storage tank 110, a second cold storage tank 120, a third cold storage tank 130, a fourth cold storage tank 140, a quick freezer 150, a freezer 160, a refrigerator 170, a fresh-keeping tank 180, an office area 190, the cold supply distributor 300, and a liquid return distributor 400. The cold accumulation liquid distribution method utilizes a first cold accumulation liquid distribution pipeline, a second cold accumulation liquid distribution pipeline, a third cold accumulation liquid distribution pipeline, a fourth cold accumulation liquid distribution pipeline and a fifth cold accumulation liquid distribution pipeline to distribute cold accumulation liquid to a multi-temperature-zone refrigeration house system, receives cold accumulation liquids of a first cold accumulation tank 110, a second cold accumulation tank 120, a third cold accumulation tank 130 and a fourth cold accumulation tank 140 of the multi-temperature-zone refrigeration house system, and distributes the received cold accumulation liquids to a quick-freezing house 150, a freezing house 160, a refrigeration house 170, a fresh-keeping house 180 and an office area 190 of the multi-temperature-zone refrigeration house system;
wherein, first cold-storage liquid distribution pipeline one end is connected with first cold-storage jar 110 through hydrologic cycle force (forcing) pump 1, and the other end is connected with quick-freeze storehouse 150 to first cold-storage liquid distribution pipeline has set gradually solenoid valve 2, check valve 3 along the direction of first cold-storage jar 110 to quick-freeze storehouse 150. When the quick-freezing storeroom 150 needs cooling, the liquid circulation pressurization pump 1 is started, the electromagnetic valve 2 is opened, and the liquid circulation pressurization pump is conveyed into the quick-freezing storeroom 150 through the one-way valve 3.
One end of the second cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank 120 through the liquid circulation pressure pump 20, the other end of the second cold accumulation liquid distribution pipeline is connected with the freezer 160, and the second cold accumulation liquid distribution pipeline is sequentially provided with a check valve 21, an electromagnetic valve 22 and a check valve 23 along the direction from the second cold accumulation tank 120 to the freezer 160. When the refrigerator needs to supply cold, the liquid circulation pressurization pump 20 is started, the electromagnetic valve 22 is opened, and the cold accumulation liquid is conveyed into the refrigerator 160 through the one-way valve 21 and the one-way valve 23.
One end of the third cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank 130 through the liquid circulation pressure pump 30, the other end is connected with the refrigerator 170, and the third cold accumulation liquid distribution pipeline is sequentially provided with a check valve 31, an electromagnetic valve 32 and a check valve 33 along the direction from the third cold accumulation tank 130 to the refrigerator 170. When the refrigerator 170 needs cooling, the hydronic pressurizing pump 30 is activated, the solenoid valve 32 is opened, and the refrigerant is delivered into the refrigerator 170 through the check valve 31 and the check valve 33.
One end of the fourth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank 140 through the liquid circulation pressure pump 40, the other end of the fourth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse 180, and the fourth cold accumulation liquid distribution pipeline is sequentially provided with a check valve 41, an electromagnetic valve 42 and a check valve 43 along the direction from the fourth cold accumulation tank 140 to the fresh-keeping warehouse 180. When the fresh-keeping warehouse 180 needs to supply cold, the liquid circulation pressurization pump 40 is started, the electromagnetic valve 42 is opened, and the cold is conveyed into the fresh-keeping warehouse 180 through the one-way valve 41 and the one-way valve 43.
One end of the fifth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank 140 through the liquid circulation pressurization pump 40, the other end of the fifth cold accumulation liquid distribution pipeline is connected with the office area 190, and the fifth cold accumulation liquid distribution pipeline is sequentially provided with a check valve 41, an electromagnetic valve 44 and a check valve 45 along the direction from the fourth cold accumulation tank 140 to the office area 190. When the office area 190 needs cooling, the hydronic pressurizing pump 40 is activated, the solenoid valve 44 is opened, and the air is delivered into the office area 190 through the check valve 41 and the check valve 45.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing cold storage liquid to the multi-temperature-zone cold storage system by using a sixth cold storage liquid distribution pipeline, wherein one end of the sixth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the sixth cold storage liquid distribution pipeline is connected to the freezer 160, and the sixth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 6, the check valve 7, the electromagnetic valve 22, and the check valve 23 along the direction from the first cold storage tank 110 to the freezer 160. When the quick-freezing chamber 150 does not need to supply cold and the freezing chamber 160 needs to supply cold, and when no cold storage liquid needed is stored in the second cold storage tank 120 corresponding to the freezing chamber, the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6 and the electromagnetic valve 22 are opened, and the cold storage liquid is conveyed into the freezing chamber 160 through the adjustable flow rate limiting valve 5, the one-way valve 7 and the one-way valve 23 for supplying cold, wherein the one-way valve 21 prevents the cold storage liquid from entering the second cold storage tank 120, and the amount of the cold storage liquid entering the freezing chamber 160 is adjusted by adjusting the adjustable flow rate limiting valve 5 according to the temperature requirement in the freezing chamber 160, so that the temperature in the freezing chamber is constant;
in a preferred embodiment of the present invention, the cold storage liquid distribution method further includes using a seventh cold storage liquid distribution pipeline to distribute cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the seventh cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the seventh cold storage liquid distribution pipeline is connected to the cold storage 170, and the seventh cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 8, the check valve 9, the electromagnetic valve 32, and the check valve 33 along the direction from the first cold storage tank 110 to the cold storage 170. When the quick-freeze storehouse does not need the cooling and the freezer needs the cooling, and when the freezer does not need cold accumulation liquid in corresponding cold accumulation jar, liquid circulation force (forcing) pump 1 starts, and solenoid valve 4, solenoid valve 8, solenoid valve 32 open, and cold accumulation liquid is carried to through adjustable velocity of flow limiting valve 5, check valve 9, check valve 33 refrigerator 170 carries out the cooling, wherein, check valve 27 prevents cold accumulation liquid to get into second cold accumulation liquid distribution pipeline, check valve 31 prevents cold accumulation liquid to get into third cold accumulation jar 130, according to the temperature change demand in freezer 170, through the adjustment of the adjustable velocity of flow limiting valve 5 volume of cold accumulation liquid in getting into the freezer, and then realize the constancy of the temperature in the freezer.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing the cold storage liquid to the multi-temperature-zone cold storage system by using an eighth cold storage liquid distribution pipeline, wherein one end of the eighth cold storage liquid distribution pipeline is connected to the second cold storage tank 120 through the liquid circulation pressure pump 20, the other end of the eighth cold storage liquid distribution pipeline is connected to the cold storage 170, and the eighth cold storage liquid distribution pipeline is sequentially provided with the check valve 21, the solenoid valve 24, the adjustable flow rate limiting valve 25, the solenoid valve 26, the check valve 27, the solenoid valve 32, and the check valve 33 along the direction from the second cold storage tank 120 to the cold storage 170. When the refrigerator does not need to supply cold and the refrigerator needs to supply cold, and when the refrigerator does not need cold accumulation liquid in the corresponding cold accumulation tank, the liquid circulation pressure pump 20 is started, the electromagnetic valve 24, the electromagnetic valve 26 and the electromagnetic valve 32 are opened, the cold accumulation liquid is conveyed to the refrigerator 170 through the one-way valve 21, the adjustable flow rate limiting valve 25, the one-way valve 27 and the one-way valve 33 for refrigeration, wherein the one-way valve 31 prevents the cold accumulation liquid from entering the third cold accumulation tank 130, and the amount of the cold accumulation liquid entering the refrigerator is adjusted by adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the refrigerator, so that the temperature in the refrigerator is constant.
In the preferred embodiment of the present invention, the cold storage liquid distribution method further includes using a ninth cold storage liquid distribution pipeline to distribute the cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the ninth cold storage liquid distribution pipeline is connected to the second cold storage tank 120 through the liquid circulation pressure pump 20, the other end is connected to the fresh-keeping warehouse 180, and the ninth cold storage liquid distribution pipeline is sequentially provided with the check valve 21, the solenoid valve 24, the adjustable flow rate limiting valve 25, the solenoid valve 28, the check valve 29, the solenoid valve 42 and the check valve 43 along the direction from the second cold storage tank 120 to the fresh-keeping warehouse 180. When the freezer does not need to supply cold and the fresh-keeping warehouse needs to supply cold, and when no required cold accumulation liquid is in the fourth cold accumulation tank 140, the liquid circulation pressure pump 20 is started, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 42 are opened, the cold accumulation liquid is conveyed to the fresh-keeping warehouse through the one-way valve 21, the adjustable flow rate limiting valve 25, the one-way valve 29 and the one-way valve 43 to supply cold, wherein the one-way valve 41 prevents the cold accumulation liquid from entering the fourth cold accumulation tank 140, the one-way valve 36 prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the fresh-keeping warehouse is adjusted by adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the fresh-keeping warehouse, so that the fresh-keeping temperature in.
In the preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing the cold storage liquid to the multi-temperature-zone freezer system by using a tenth cold storage liquid distribution pipeline, wherein one end of the tenth cold storage liquid distribution pipeline is connected to the second cold storage tank 120 through the liquid circulation pressure pump 20, the other end of the tenth cold storage liquid distribution pipeline is connected to the office area 190, and the tenth cold storage liquid distribution pipeline is sequentially provided with the check valve 21, the solenoid valve 24, the adjustable flow rate limiting valve 25, the solenoid valve 28, the check valve 29, the solenoid valve 44 and the check valve 45 along the direction from the second cold storage tank 120 to the office area 190. When the freezer does not need to be cooled and the office area needs to be cooled, and when no required cold accumulation liquid is in the fourth cold accumulation tank 140, the liquid circulation pressure pump 20 is started, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 44 are opened, the cold accumulation liquid is conveyed to the office area 190 through the one-way valve 21, the adjustable flow rate limiting valve 25, the one-way valve 29 and the one-way valve 45 for cooling, wherein the one-way valve 41 prevents the cold accumulation liquid from entering the fourth cold accumulation tank 140, the one-way valve 36 prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the office area is adjusted by adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the office area, so that the temperature in the office area is constant.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes using an eleventh cold storage liquid distribution pipeline to distribute the cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the eleventh cold storage liquid distribution pipeline is connected to the third cold storage tank 130 through the liquid circulation pressure pump 30, the other end of the eleventh cold storage liquid distribution pipeline is connected to the fresh-keeping warehouse 180, and the eleventh cold storage liquid distribution pipeline is sequentially provided with the check valve 31, the solenoid valve 34, the adjustable flow rate limiting valve 35, the check valve 36, the solenoid valve 42, and the check valve 43 along the direction from the third cold storage tank 130 to the fresh-keeping warehouse 180. When the cold storage is not required to be cooled and the fresh-keeping warehouse is required to be cooled and no required cold storage liquid is required in the fourth cold storage tank 140, the liquid circulation pressure pump 30 is started, the electromagnetic valve 34 and the electromagnetic valve 42 are opened, and the liquid circulation pressure pump is conveyed to the fresh-keeping warehouse for cooling through the one-way valve 31, the adjustable flow rate limiting valve 35, the one-way valve 36 and the one-way valve 43, wherein the one-way valve 41 prevents the cold storage liquid from entering the fourth cold storage tank 140, the one-way valve 29 prevents the cold storage liquid from entering the third cold storage liquid distribution pipeline, and the amount of the cold storage liquid entering the fresh-keeping warehouse is adjusted through adjusting the adjustable flow rate limiting valve 25 according to the temperature requirement in the fresh-keeping warehouse, so that the fresh;
in a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing the cold storage liquid to the multi-temperature-zone freezer system by using a twelfth cold storage liquid distribution pipeline, wherein one end of the twelfth cold storage liquid distribution pipeline is connected to the third cold storage tank 130 through the liquid circulation pressure pump 30, the other end of the twelfth cold storage liquid distribution pipeline is connected to the office area 190, and the twelfth cold storage liquid distribution pipeline is sequentially provided with the check valve 31, the solenoid valve 34, the adjustable flow rate limiting valve 35, the check valve 36, the solenoid valve 44 and the check valve 45 along the direction from the third cold storage tank 130 to the office area 190. When the cold supply is not needed in the refrigerator and the office area needs the cold supply, and when no required cold storage liquid is needed in the fourth cold storage tank 140, the liquid circulation pressure pump 30 is started, the electromagnetic valve 34 and the electromagnetic valve 44 are opened, the liquid circulation pressure pump is conveyed to the office area for cold supply through the one-way valve 31, the adjustable flow rate limiting valve 35, the one-way valve 36 and the one-way valve 45, the one-way valve 41 prevents the cold storage liquid from entering the fourth cold storage tank 140, the one-way valve 29 prevents the cold storage liquid from entering the third cold storage liquid distribution pipeline, and the amount of the cold storage liquid entering the office area is adjusted through adjusting the adjustable flow rate limiting valve 35 according to the temperature requirement in the office area, so that the temperature in the office area is constant.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing cold storage liquid to the multi-temperature-zone freezer system by using a thirteenth cold storage liquid distribution pipeline, wherein one end of the thirteenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the thirteenth cold storage liquid distribution pipeline is connected to the fresh-keeping warehouse 180, and the thirteenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 6, the one-way valve 7, the electromagnetic valve 24, the adjustable flow rate limiting valve 25, the electromagnetic valve 26, the one-way valve 27, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the one-way valve 36, the electromagnetic valve 42, and the one-way valve 43 along the direction from. The cold storage liquid directly supplies cold to the fresh-keeping warehouse 180 through the first cold storage tank 110, wherein the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 26, the electromagnetic valve 34 and the electromagnetic valve 42 are started, and the cold storage liquid enters the fresh-keeping warehouse 180 through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the adjustable flow rate limiting valve 35, the one-way valve 7, the one-way valve 27, the one-way valve 36 and the one-way valve 43 to supply cold.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing the cold storage liquid to the multi-temperature-zone freezer system by using a fourteenth cold storage liquid distribution pipeline, wherein one end of the fourteenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the fourteenth cold storage liquid distribution pipeline is connected to the office area 190, and the fourteenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 6, the one-way valve 7, the electromagnetic valve 24, the adjustable flow rate limiting valve 25, the electromagnetic valve 26, the one-way valve 27, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the one-way valve 36, the electromagnetic valve 44, and the one-way valve 45 along the direction. Wherein, the office area 190 is directly cooled by the first cold storage tank 110, the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 26, the electromagnetic valve 34 and the electromagnetic valve 44 are started, and the cold storage liquid enters the office area 190 for cooling through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the adjustable flow rate limiting valve 35, the one-way valve 7, the one-way valve 27, the one-way valve 36 and the one-way valve 45;
in a preferred embodiment of the present invention, the cold storage liquid distribution method further includes using a fifteenth cold storage liquid distribution pipeline to distribute the cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the fifteenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the fifteenth cold storage liquid distribution pipeline is connected to the fresh-keeping warehouse 180, and the fifteenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 6, the one-way valve 7, the electromagnetic valve 24, the adjustable flow rate limiting valve 25, the electromagnetic valve 28, the one-way valve 29, the electromagnetic valve 42, and the one-way valve 43 along the direction from the first cold storage. The cold storage tank 110 directly supplies cold to the fresh-keeping warehouse 180, the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 42 are started, and the cold storage liquid enters the fresh-keeping warehouse 180 through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the one-way valve 7, the one-way valve 29 and the one-way valve 43 to supply cold.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes distributing the cold storage liquid to the multi-temperature-zone freezer system by using a sixteenth cold storage liquid distribution pipeline, wherein one end of the sixteenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the sixteenth cold storage liquid distribution pipeline is connected to the office area 190, and the sixteenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 6, the check valve 7, the electromagnetic valve 24, the adjustable flow rate limiting valve 25, the electromagnetic valve 28, the check valve 29, the electromagnetic valve 44 and the check valve 45 along the direction from the first cold storage tank 110 to the. The first cold accumulation tank 110 directly supplies cold to the office area 190, the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 6, the electromagnetic valve 24, the electromagnetic valve 28 and the electromagnetic valve 44 are started, and the cold accumulation liquid enters the office area 190 through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 25, the one-way valve 7, the one-way valve 29 and the one-way valve 45 to supply cold.
In a preferred embodiment of the present invention, the cold storage liquid distribution method further includes using a seventeenth cold storage liquid distribution pipeline to distribute the cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the seventeenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the seventeenth cold storage liquid distribution pipeline is connected to the fresh-keeping warehouse 180, and the seventeenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 8, the one-way valve 9, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the one-way valve 36, the electromagnetic valve 42, and the one-way valve 43 along the direction from the first. Directly supplying cold to the fresh-keeping warehouse 180 through the first cold storage tank 110, starting the liquid circulation pressure pump 1, starting the electromagnetic valve 4, the electromagnetic valve 8, the electromagnetic valve 34 and the electromagnetic valve 42, and allowing cold storage liquid to enter the fresh-keeping warehouse 180 for cold supply through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 35, the one-way valve 9, the one-way valve 36 and the one-way valve 43;
in a preferred embodiment of the present invention, the cold storage liquid distribution method further includes using an eighteenth cold storage liquid distribution pipeline to distribute the cold storage liquid to the multi-temperature-zone cold storage system, wherein one end of the eighteenth cold storage liquid distribution pipeline is connected to the first cold storage tank 110 through the liquid circulation pressure pump 1, the other end of the eighteenth cold storage liquid distribution pipeline is connected to the office area 190, and the eighteenth cold storage liquid distribution pipeline is sequentially provided with the electromagnetic valve 4, the adjustable flow rate limiting valve 5, the electromagnetic valve 8, the one-way valve 9, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the one-way valve 36, the electromagnetic valve 44, and the one-way valve 45 along the direction from the first. The first cold accumulation tank 110 directly supplies cold to the office area 190, the liquid circulation pressure pump 1 is started, the electromagnetic valve 4, the electromagnetic valve 8, the electromagnetic valve 34 and the electromagnetic valve 44 are started, and the cold accumulation liquid enters the office area 190 through the adjustable flow rate limiting valve 5, the adjustable flow rate limiting valve 35, the one-way valve 9, the one-way valve 36 and the one-way valve 45 to supply cold.
Fig. 3 is a schematic view of a multi-temperature-zone freezer system using the cold storage liquid distribution method of the cold supply distributor of the present invention, as shown in fig. 3, the multi-temperature-zone freezer system refrigerates a quick freezer 150, a freezer 160, a refrigerator 170, a fresh-keeping warehouse 180, and an office area 190 by one refrigerating unit 100; wherein the refrigerator set 100 supplies the first cold storage tank 110 with the cold storage liquid, the first cold storage tank 110, the second cold storage tank 120, the third cold storage tank 130, and the fourth cold storage tank 140 supply the cold storage liquid to the cold supply distributor 300 of the present invention, and the cold storage liquid is distributed to the quick freezer 150, the freezer 160, the refrigerator 170, the fresh food 180, and the office area 190 by the cold supply distributor 300; the quick-freezing storage 150, the freezing storage 160, the refrigerating storage 170, the fresh keeping storage 180, and the office area 190 return the cold storage liquid to the liquid return distributor 400, and the cold storage liquid is returned to the first cold storage tank 110, the second cold storage tank 120, the third cold storage tank 130, and the fourth cold storage tank 140 by the liquid return distributor 400. Wherein, each refrigeration house and office area can be set according to the requirement. When there is a cooling demand of the central air conditioner in the office area, the cooling storage system can contain the office area 190 and can provide low-temperature liquid to the office area 190 conveniently. After all the cold storage areas are used up, the residual cold quantity can be used as the cold quantity of the central air conditioner to be supplied to office areas.
Wherein the first cold storage tank 110 is a cold storage tank at-65 to-45 ℃; the second cold storage tank 120 is a cold storage tank at-35 to-18 ℃; the third cold storage tank 130 is a cold storage tank at-18 to 0 ℃; the fourth cold storage tank 140 is a cold storage tank at 0-15 DEG C
Fig. 4 is a schematic view of a liquid return distributor in a multi-temperature-zone refrigeration storage system using the cold supply distributor cold accumulation liquid distribution method of the present invention, and as shown in fig. 4, the liquid return distributor includes a first cold accumulation liquid return pipeline, a second cold accumulation liquid return pipeline, a third cold accumulation liquid return pipeline, a fourth cold accumulation liquid return pipeline, and a fifth cold accumulation liquid return pipeline.
Wherein, quick-freeze storehouse 150 is connected to first cold-storage liquid return line one end, and the second cold-storage jar 120 is connected to the other end to, first cold-storage liquid return line has set gradually solenoid valve 1A and check valve 1B along quick-freeze storehouse 150 to the direction of second cold-storage jar 120. When the cold accumulation liquid in the quick-freezing chamber 150 returns after cooling, the electromagnetic valve 1A is started, and the cold accumulation liquid returns to the second cold accumulation tank 120 through the one-way valve 1B to be stored.
One end of the second cold accumulation liquid return pipeline is connected with the freezer 160, the other end of the second cold accumulation liquid return pipeline is connected with the third cold accumulation tank 130, and the second cold accumulation liquid return pipeline is sequentially provided with a check valve 2A, an electromagnetic valve 2B and a check valve 2C along the direction from the freezer 160 to the third cold accumulation tank 130. When the cold accumulation liquid in the freezer 160 flows back after being cooled, the electromagnetic valve 2B is started, and the cold accumulation liquid flows back to the third cold accumulation tank 130 through the one-way valve 2A and the one-way valve 2C to be stored.
One end of the third cold accumulation liquid return pipeline is connected with the refrigerator 170, the other end of the third cold accumulation liquid return pipeline is connected with the fourth cold accumulation tank 140, and the third cold accumulation liquid return pipeline is sequentially provided with a check valve 3A, an electromagnetic valve 3B and a check valve 3C along the direction from the refrigerator 170 to the fourth cold accumulation tank 140. When cold accumulation liquid in the refrigerator flows back after cold accumulation is finished, the electromagnetic valve 3B is started, and the cold accumulation liquid flows back to the cold accumulation tank at 0-15 ℃ through the one-way valve 3A and the one-way valve 3C to be stored.
The fresh-keeping storehouse 180 is connected to fourth cold-storage liquid return line one end, and first cold-storage jar 110 is connected to the other end to, fourth cold-storage liquid return line has set gradually check valve 4A, solenoid valve 4B and check valve 4C along fresh-keeping storehouse 180 to the direction of first cold-storage jar 110. After the cold accumulation liquid in the fresh-keeping warehouse 180 is cooled, the electromagnetic valve 4B is started, and the cold accumulation liquid flows back to the first cold accumulation tank 110 through the one-way valve 4A and the one-way valve 4C.
One end of the fifth cold accumulation liquid return pipeline is connected with the office area 190, the other end of the fifth cold accumulation liquid return pipeline is connected with the first cold accumulation tank 110, and the fifth cold accumulation liquid return pipeline is sequentially provided with a check valve 4D, an electromagnetic valve 4B and a check valve 4C along the direction from the office area 190 to the first cold accumulation tank 110. After the cool storage liquid in the office area 190 is completely cooled, the electromagnetic valve 4B is activated and returns to the first cool storage tank 110 through the check valve 4D and the check valve 4C.
In a preferred embodiment of the present invention, the liquid return distributor further includes a sixth cold accumulation liquid return pipeline, wherein one end of the sixth cold accumulation liquid return pipeline is connected to the quick-freezing chamber 150, the other end of the sixth cold accumulation liquid return pipeline is connected to the third cold accumulation tank 130, and the sixth cold accumulation liquid return pipeline is sequentially provided with an electromagnetic valve 1C and a one-way valve 1D along a direction from the quick-freezing chamber 150 to the third cold accumulation tank 130. When the cold accumulation liquid in the third cold accumulation tank 130 does not meet the use requirement, the cold accumulation liquid in the quick-freezing storage 150 is conveyed into the third cold accumulation tank 130 through the electromagnetic valve 1C and the one-way valve 1D.
In a preferred embodiment of the present invention, the liquid return distributor further includes a seventh cold storage liquid return pipeline, one end of the seventh cold storage liquid return pipeline is connected to the quick-freezing chamber 150, and the other end of the seventh cold storage liquid return pipeline is connected to the fourth cold storage tank 140, and the seventh cold storage liquid return pipeline is sequentially provided with an electromagnetic valve 1E and a one-way valve 1F along a direction from the quick-freezing chamber 150 to the fourth cold storage tank 140. When the cold accumulation liquid in the fourth cold accumulation tank 140 does not meet the use requirement, the cold accumulation liquid in the quick-freezing storage 150 is conveyed into the fourth cold accumulation tank 140 through the electromagnetic valve 1E and the one-way valve 1F.
In a preferred embodiment of the present invention, the liquid return distributor further includes an eighth cold storage liquid return pipeline, wherein one end of the eighth cold storage liquid return pipeline is connected to the quick-freezing chamber 150, and the other end of the eighth cold storage liquid return pipeline is connected to the first cold storage tank 110, and the eighth cold storage liquid return pipeline is sequentially provided with an electromagnetic valve 1G and a one-way valve 1H along a direction from the quick-freezing chamber 150 to the first cold storage tank 110. When the cold accumulation liquid in the first cold accumulation tank 110 does not meet the use requirement, the cold accumulation liquid in the quick-freezing storage 150 is conveyed into the first cold accumulation tank 110 through the electromagnetic valve 1G and the check valve 1H.
In a preferred embodiment of the present invention, the liquid return distributor further includes a ninth cold storage liquid return pipeline, one end of the ninth cold storage liquid return pipeline is connected to the freezer 160, and the other end of the ninth cold storage liquid return pipeline is connected to the fourth cold storage tank 140, and the ninth cold storage liquid return pipeline is sequentially provided with a check valve 2A, an electromagnetic valve 2D, and a check valve 2E along a direction from the freezer 160 to the fourth cold storage tank 140. When the cold storage liquid in the fourth cold storage tank 140 does not satisfy the use requirement, the cold storage liquid in the freezer 160 is delivered into the fourth cold storage tank 140 through the check valve 2A, the solenoid valve 2D, and the check valve 2E.
In a preferred embodiment of the present invention, the liquid return distributor further includes a tenth cold storage liquid return pipeline, one end of the tenth cold storage liquid return pipeline is connected to the freezer 160, and the other end of the tenth cold storage liquid return pipeline is connected to the first cold storage tank 110, and the tenth cold storage liquid return pipeline is sequentially provided with a check valve 2A, an electromagnetic valve 2F and a check valve 2G along a direction from the freezer 160 to the first cold storage tank 110. When the cold storage liquid in the first cold storage tank 110 does not satisfy the use requirement, the cold storage liquid in the freezer 160 is transported into the first cold storage tank 110 through the check valve 2A, the electromagnetic valve 2F, and the check valve 2G.
In a preferred embodiment of the present invention, the liquid return distributor further includes an eleventh cold storage liquid return pipeline, one end of the eleventh cold storage liquid return pipeline is connected to the refrigerator 170, the other end of the eleventh cold storage liquid return pipeline is connected to the first cold storage tank 110, and the eleventh cold storage liquid return pipeline is sequentially provided with a check valve 3A, an electromagnetic valve 3D, and a check valve 3E along a direction from the refrigerator 170 to the first cold storage tank 110. When the cold storage liquid in the first cold storage tank 110 does not meet the use requirement, the cold storage liquid in the freezing storage 170 is transported into the first cold storage tank 110 through the check valve 3A, the solenoid valve 3D, and the check valve 3E.
The multi-temperature-zone cooling system can be driven by one main refrigerating unit and one auxiliary refrigerating unit. As shown in fig. 3, the refrigeration unit 100 may include a main refrigeration unit 101 and an auxiliary refrigeration unit 102, the main refrigeration unit 101 is connected in parallel with the auxiliary refrigeration unit 102, the main refrigeration unit 101 performs refrigeration at full power, when the temperature of the whole cold storage tank reaches, the main refrigeration unit 101 may be turned off when the refrigeration demand is low and the amount of return liquid is small, and the auxiliary refrigeration unit 102 may be turned on to perform refrigeration maintenance, so as to reduce the refrigeration power consumption of the system. The refrigeration unit 100 (the main refrigeration unit 101 and the auxiliary refrigeration unit 102) can exchange heat with the first cold storage tank 110 through the refrigeration heat exchanger 200. When the requirement for cold energy is not large, the refrigeration main machine is closed, the refrigeration maintaining auxiliary machine is started to maintain the temperature of the cold-storage liquid, and the energy consumption of the whole system is maintained at an extremely low level.
And when the temperature zone needs to be accurately controlled, the temperature can be accurately controlled by adjusting the flow speed and the flow of the circulating booster pump, so that the accurate temperature adjustment of + -0.1 ℃ is realized. Such as: the flow speed and the flow of the cold storage liquid are adjusted by adjusting the circulating pressure pump 1 so as to control the temperature of the quick-freezing warehouse 150; the temperature of the freezer 160 is controlled by adjusting the flow rate and flow rate of the cold storage liquid by adjusting the circulation pressure pump 20; the temperature of the refrigerator 170 is controlled by adjusting the flow rate and the flow rate of the cold storage liquid by adjusting the circulation pressure pump 30; the flow speed and the flow rate of the cold storage liquid are adjusted by adjusting the circulating pressure pump 40 to control the temperature of the fresh-keeping warehouse 180 and the office area 190, and then all the cold storage temperature areas can be changed into the required temperature area modes at will according to the requirements, and all the temperature areas such as freezing, refrigerating, fresh keeping and the like can be mutually converted.
When the system is initially put into use, the cold storage liquid in the first refrigerating tank is refrigerated through the refrigerating unit, the cold storage liquid is supplied to the cold supply distributor through the circulating pressure pump when the temperature of the cold storage liquid reaches the temperature required by the first cold storage tank, the cold supply distributor distributes the cold storage liquid into the cold storages, and the cold storage liquid in the cold storages returns to the liquid return distributor and returns to other cold storage tanks through the liquid return distributor. Similarly, when any cold storage tank reaches the required temperature, the cold storage liquid is distributed into the cold storage through the circulating pressure pump and the cold supply distributor, the cold storage liquid in the cold storage is returned to the liquid return distributor and further supplied to the cold storage tank, and finally the cold storage tank required to be used is filled with the cold storage liquid and is enabled to reach the required temperature.
In general, when the temperature of the cold accumulation liquid reaches the temperature required by the first cold accumulation tank, the cold accumulation liquid is provided to the cold supply distributor through the circulating pressure pump, the cold supply distributor distributes the cold accumulation liquid into the quick freezing storeroom, and the cold accumulation liquid in the quick freezing storeroom returns to the liquid return distributor and returns to the second cold accumulation tank through the liquid return distributor. Correspondingly, when any cold storage tank reaches the required temperature, the cold storage liquid is distributed into the corresponding cold storage through the circulating pressure pump and the cold supply distributor, and the cold storage liquid in the cold storage is returned to the liquid return distributor to further provide the cold storage tank with the next high temperature, so that the cold storage tank to be used is filled with the cold storage liquid and reaches the required temperature.
In the multi-temperature-zone refrigeration storage system, the second cold storage tank 120 may be connected to the first cold storage tank 110, so that the cold storage liquid in the second cold storage tank 120 may flow back to the first cold storage tank 110. And the third cold storage tank 130 may be connected to the first cold storage tank 110 so that the cold storage liquid in the third cold storage tank 130 may flow back to the first cold storage tank 110.
Fig. 5 is a schematic diagram showing the replacement of the cold storage temperature region of the multi-temperature-region cold storage system using the cold storage liquid distribution method of the cold supply distributor of the present invention, as shown in fig. 5, the multi-temperature-region cold storage system using the cold storage liquid distribution method of the cold supply distributor of the present invention can divide the cold storage into different temperature-region cold storage according to the requirement, such as: the refrigerator comprises a quick-freezing warehouse 150, a freezing warehouse 160, a cold storage warehouse 170, a fresh-keeping warehouse 180 and an office area 190 (shown as line L in fig. 3), wherein temperature zones of the quick-freezing warehouse 150, the freezing warehouse 160, the cold storage warehouse 170, the fresh-keeping warehouse 180 and the office area 190 can be changed as required, and can be adjusted into other temperature zone ranges as required, furthermore, the quick-freezing warehouse 150, the freezing warehouse 160, the cold storage warehouse 170, the fresh-keeping warehouse 180 and the office area 190 can maintain the original type of the cold storage warehouse and adjust the temperature zone ranges thereof, and can be changed into any one of the temperature zone modes of the quick-freezing warehouse, the fresh-keeping warehouse and the office area, such as: the quick-freezer 150, the freezer 160, the refrigerator 170, the fresh food warehouse 180, and the office area 190 may be simultaneously changed to the quick-freezer (e.g., line L1 in fig. 3), the freezer (e.g., line L2 in fig. 3), the refrigerator (e.g., line L3 in fig. 3), or the fresh food warehouse (e.g., line L4 in fig. 3), as needed; in other words, according to different seasons or production requirements, all the refrigerators and the freezers can freely change modes at any time, when the freezers are needed, all the refrigerators can be changed into the freezers, and when the freezers are needed, all the freezers can be changed into the refrigerators, all the refrigerators can be mutually changed according to the requirements, and therefore the flexibility of the operation of the refrigerator system and the flexibility of the operation of the refrigerator system in response to sudden requirements are improved.
In the preferred embodiment of the present invention, the multi-temperature-zone freezer system of the present invention uses one refrigerating unit 100 to refrigerate the freezer 150, the freezer 160, the refrigerator 170, the fresh-keeping warehouse 180 and the office area 190, and the refrigerating temperature zones that can be realized simultaneously include but are not limited to: the system comprises an ultralow temperature tuna storeroom (below minus 60 ℃), a quick-freezing storeroom (below minus 25-45 ℃), a freezing storeroom (18-25 ℃), a cold storeroom (0-5 ℃), a fresh-keeping storeroom (below minus 5-15 ℃), a central air conditioner (cold) (10-15 ℃) in an office area and a central air conditioner (hot) (40-80 ℃), wherein the quick-freezing storeroom can be converted into an ultralow temperature tuna storeroom (below minus 60 ℃) temperature region according to needs, and the central air conditioner (cold) in the office area can be converted into a central air conditioner (hot) (40-80 ℃) temperature region.
In a preferred embodiment of the present invention, the areas where the first, second, third and fourth cold accumulation tanks 110, 120, 130 and 140 are located are normal pressure pipeline areas, and only the area where the refrigeration unit is located is a pressure-bearing pipeline area, that is, the pipelines in the whole refrigeration area are normal pressure systems, and no high pressure system is provided in the refrigeration area, so that the system construction cost and the later maintenance cost are greatly reduced. The refrigeration host works at the maximum efficiency value, and the low-load state of frequent start-stop and low energy efficiency is thoroughly avoided.
The cold accumulation liquid distribution method of the cold supply distributor disclosed by the invention distributes the cold accumulation liquid to the required refrigeration house according to the requirements through the plurality of cold supply lines, and meanwhile, when the refrigeration house does not contain the cold accumulation liquid in the corresponding cold accumulation tank, the cold accumulation liquid in other cold accumulation tanks can be distributed to the refrigeration house through each cold supply line, so that the cold accumulation liquid can be flexibly distributed as required.
By adopting the cold accumulation liquid distribution method of the cold supply distributor, the applied multi-temperature-zone refrigeration house system can refrigerate a plurality of refrigeration houses through one refrigeration unit, and the cold accumulation liquid can circulate in the refrigeration houses and the cold accumulation tanks. The refrigeration host of the refrigeration system can accumulate the cold energy by adopting a full-power working mode, and the refrigeration host only needs full load to refrigerate the cold accumulation tank. When needed, the cold accumulation liquid is conveyed to an evaporator of the refrigeration house through the circulating pressure pump, and the return liquid enters the tank body with high temperature. The peak regulation capability of the system is strong. The evaporator has small temperature load change, is not easy to frost, and can greatly prolong the defrosting period.
Moreover, the multi-temperature-zone refrigeration house system adopting the cold supply distributor of the invention preferably adopts a single-machine multi-compartment multi-temperature-zone mode, the multi-temperature-zone refrigeration system can refrigerate a plurality of refrigeration houses through one refrigeration unit, the quantity and the size of the refrigeration houses driven by the multi-temperature-zone refrigeration system can be increased and decreased at any time according to the needs, for example, the quick-freezing house, the refrigeration house, the cold storage house, the fresh-keeping house and the office area can be respectively one or more. And all temperature area storehouses can be changed into the required temperature area modes at will according to requirements, namely, the temperature areas of the quick-freezing storehouses, the cold storage houses, the fresh-keeping storehouses and the like can be mutually converted. The system can be a freezer, a refrigerator, a fresh-keeping warehouse, and the like; all modes can be arbitrarily switched at any time. If an office system exists, a refrigeration mode and a heating mode can be provided for the office environment, and the usability of the system is greatly improved. Moreover, any maintenance separation of the storeroom does not influence the stable operation of the whole system. The whole dangerous area of the core system is reduced from the original range of thousands of square meters and tens of thousands of square meters to dozens of hundred square meters.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (8)

1. A cold accumulation liquid distribution method of a cold supply distributor is characterized in that a first cold accumulation liquid distribution pipeline, a second cold accumulation liquid distribution pipeline, a third cold accumulation liquid distribution pipeline, a fourth cold accumulation liquid distribution pipeline, a fifth cold accumulation liquid distribution pipeline, a sixth cold accumulation liquid distribution pipeline, a seventh cold accumulation liquid distribution pipeline, an eighth cold accumulation liquid distribution pipeline, a ninth cold accumulation liquid distribution pipeline and an eleventh cold accumulation liquid distribution pipeline are utilized to distribute cold accumulation liquid to a multi-temperature-zone cold storage system, receive cold accumulation liquids of a first cold accumulation tank, a second cold accumulation tank, a third cold accumulation tank and a fourth cold accumulation tank of the multi-temperature-zone cold storage system and distribute the received cold accumulation liquids to a quick freezing warehouse, a cold storage warehouse and a fresh-keeping warehouse of the multi-temperature-zone cold storage system;
one end of the first cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the first cold accumulation liquid distribution pipeline is connected with the quick-freezing warehouse, and the first cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (2) and a one-way valve (3) along the direction from the first cold accumulation tank to the quick-freezing warehouse; when the quick-freezing warehouse needs cooling, the liquid circulation pressure pump (1) is started, the electromagnetic valve (2) is opened, and the liquid circulation pressure pump is conveyed into the quick-freezing warehouse through the one-way valve (3);
one end of the second cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressurization pump (20), the other end of the second cold accumulation liquid distribution pipeline is connected with the refrigerator, and the second cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (21), an electromagnetic valve (22) and a one-way valve (23) along the direction from the second cold accumulation tank to the refrigerator; when the freezer needs to supply cold, the liquid circulation pressurization pump (20) is started, the electromagnetic valve (22) is opened, and the cold accumulation liquid is conveyed into the freezer through the one-way valve (21) and the one-way valve (23);
one end of the third cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressurization pump (30), the other end of the third cold accumulation liquid distribution pipeline is connected with the refrigerator, and the third cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (31), an electromagnetic valve (32) and a one-way valve (33) along the direction from the third cold accumulation tank to the refrigerator; when the refrigerator needs cooling, the liquid circulation pressurization pump (30) is started, the electromagnetic valve (32) is opened, and the liquid circulation pressurization pump is conveyed into the refrigerator through the one-way valve (31) and the one-way valve (33);
one end of the fourth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank through a liquid circulation pressure pump (40), the other end of the fourth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the fourth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (41), an electromagnetic valve (42) and a one-way valve (43) along the direction from the fourth cold accumulation tank to the fresh-keeping warehouse; when the fresh-keeping warehouse needs to supply cold, the liquid circulation pressurization pump (40) is started, the electromagnetic valve (42) is opened, and the liquid circulation pressurization pump is conveyed into the fresh-keeping warehouse through the one-way valve (41) and the one-way valve (43);
one end of the sixth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the sixth cold accumulation liquid distribution pipeline is connected with the refrigerator, and the sixth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (6), a one-way valve (7), an electromagnetic valve (22) and a one-way valve (23) along the direction from the first cold accumulation tank to the refrigerator; when the quick-freezing storage does not need to be cooled and the freezing storage needs to be cooled and when no required cold accumulation liquid is arranged in the second cold accumulation tank corresponding to the freezing storage, the liquid circulation pressure pump (1) is started, the electromagnetic valve (4), the electromagnetic valve (6) and the electromagnetic valve (22) are opened, the cold accumulation liquid is conveyed into the freezing storage through the adjustable flow rate limiting valve (5), the one-way valve (7) and the one-way valve (23) for cooling, wherein the one-way valve (21) prevents the cold accumulation liquid from entering the second cold accumulation tank, and the amount of the cold accumulation liquid entering the freezing storage is adjusted by adjusting the adjustable flow rate limiting valve (5) according to the temperature requirement in the freezing storage, so that the temperature in the freezing storage is constant;
one end of the seventh cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the seventh cold accumulation liquid distribution pipeline is connected with the refrigerator, and the seventh cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (8), a one-way valve (9), an electromagnetic valve (32) and a one-way valve (33) along the direction from the first cold accumulation tank to the refrigerator; when the quick-freezing storage does not need to be cooled and the cold storage needs to be cooled and the cold storage does not need cold accumulation liquid in a cold accumulation tank corresponding to the cold storage, the liquid circulation pressure pump (1) is started, the electromagnetic valve (4), the electromagnetic valve (8) and the electromagnetic valve (32) are opened, the cold accumulation liquid is conveyed to the cold storage through the adjustable flow rate limiting valve (5), the one-way valve (9) and the one-way valve (33) for cooling, wherein the one-way valve (27) prevents the cold accumulation liquid from entering the second cold accumulation liquid distribution pipeline, the one-way valve (31) prevents the cold accumulation liquid from entering the third cold accumulation tank, and the amount of the cold accumulation liquid entering the cold storage is adjusted through the adjustable flow rate limiting valve (5) according to the temperature change requirement in the cold storage, so that the temperature in the cold storage is;
one end of the eighth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressurization pump (20), the other end of the eighth cold accumulation liquid distribution pipeline is connected with the refrigerator, and the eighth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (21), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (26), a one-way valve (27), an electromagnetic valve (32) and a one-way valve (33) along the direction from the second cold accumulation tank to the refrigerator; when the refrigerator does not need to supply cold and the refrigerator needs to supply cold and the refrigerator does not need cold accumulation liquid in a corresponding cold accumulation tank, the liquid circulation pressure pump (20) is started, the electromagnetic valve (24), the electromagnetic valve (26) and the electromagnetic valve (32) are opened, the cold accumulation liquid is conveyed to the refrigerator through the one-way valve (21), the adjustable flow rate limiting valve (25), the one-way valve (27) and the one-way valve (33) for refrigeration, wherein the one-way valve (31) prevents the cold accumulation liquid from entering the third cold accumulation tank, and the amount of the cold accumulation liquid entering the refrigerator is adjusted by adjusting the adjustable flow rate limiting valve (25) according to the temperature requirement in the refrigerator, so that the temperature in the refrigerator is constant;
one end of the ninth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressure pump (20), the other end of the ninth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the ninth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (21), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (28), a one-way valve (29), an electromagnetic valve (42) and a one-way valve (43) along the direction from the second cold accumulation tank to the fresh-keeping warehouse; when the refrigerator does not need to supply cold and the fresh-keeping warehouse needs to supply cold, and no cold accumulation liquid is needed in the fourth cold accumulation tank, the liquid circulation pressure pump (20) is started, the electromagnetic valve (24), the electromagnetic valve (28) and the electromagnetic valve (42) are opened, the cold accumulation liquid is conveyed to the fresh-keeping warehouse for cooling through the one-way valve (21), the adjustable flow rate limiting valve (25), the one-way valve (29) and the one-way valve (43), wherein the one-way valve (41) prevents the cold accumulation liquid from entering the fourth cold accumulation tank, the one-way valve (36) prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the fresh-keeping warehouse is adjusted through the adjustable flow rate limiting valve (25) according to the temperature requirement in the fresh-keeping warehouse, so that the temperature in the fresh;
one end of the eleventh cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressurization pump (30), the other end of the eleventh cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the eleventh cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (31), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (42) and a one-way valve (43) along the direction from the third cold accumulation tank to the fresh-keeping warehouse;
when the cold storage does not need to be cooled and the fresh-keeping storehouse needs to be cooled, and when no required cold accumulation liquid exists in the fourth cold accumulation tank, the liquid circulation pressure pump (30) is started, the electromagnetic valve (34) and the electromagnetic valve (42) are opened, and the liquid circulation pressure pump is conveyed to the fresh-keeping storehouse for cooling through the one-way valve (31), the adjustable flow rate limiting valve (35), the one-way valve (36) and the one-way valve (43), wherein the one-way valve (41) prevents the cold accumulation liquid from entering the fourth cold accumulation tank, the one-way valve (29) prevents the cold accumulation liquid from entering the third cold accumulation liquid distribution pipeline, and the amount of the cold accumulation liquid entering the fresh-keeping storehouse is adjusted through the adjustable flow rate limiting valve (25) according to the temperature requirement in the fresh-keeping storehouse, so.
2. The cold accumulation liquid distribution method of the cold supply distributor according to claim 1, wherein the multi-temperature zone cold storage system further comprises an office area, and the distribution method utilizes a fifth cold accumulation liquid distribution pipeline to distribute the cold accumulation liquid to the office area;
one end of the fifth cold accumulation liquid distribution pipeline is connected with the fourth cold accumulation tank through a liquid circulation pressurization pump (40), the other end of the fifth cold accumulation liquid distribution pipeline is connected with an office area, and the fifth cold accumulation liquid distribution pipeline is sequentially provided with the check valve (41), the electromagnetic valve (44) and the check valve (45) along the direction from the fourth cold accumulation tank to the office area; when the office area needs cooling, the liquid circulation pressurization pump (40) is started, the electromagnetic valve (44) is opened, and the liquid is conveyed into the office area through the one-way valve (41) and the one-way valve (45).
3. The cold accumulation liquid distribution method of the cold supply distributor according to claim 1, further comprising distributing the cold accumulation liquid to the multi-temperature-zone cold storage system by using a tenth cold accumulation liquid distribution pipeline;
one end of the tenth cold accumulation liquid distribution pipeline is connected with the second cold accumulation tank through a liquid circulation pressure pump (20), the other end of the tenth cold accumulation liquid distribution pipeline is connected with an office area, and the tenth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (21), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (28), a one-way valve (29), an electromagnetic valve (44) and a one-way valve (45) along the direction from the second cold accumulation tank to the office area; when the freezer does not need the cooling and office area needs the cooling, just when not needing cold accumulation liquid in the fourth cold accumulation jar, liquid circulation force (20) start, solenoid valve (24), solenoid valve (28), solenoid valve (44) are opened, and cold accumulation liquid passes through check valve (21), adjustable velocity of flow limiting valve (25), check valve (29), check valve (45) are carried to office area and are carried out the cooling, and wherein, check valve (41) prevent cold accumulation liquid to get into the fourth cold accumulation jar, check valve (36) prevent cold accumulation liquid to get into third cold accumulation liquid distribution pipeline to, according to office area interior temperature demand, through adjusting the volume that gets into office area interior cold accumulation liquid of adjustable velocity of flow limiting valve (25), and then realize the constancy of temperature in office area.
4. The cold accumulation liquid distribution method of the cold supply distributor according to claim 3, further comprising distributing the cold accumulation liquid to the multi-temperature-zone cold storage system by using a twelfth cold accumulation liquid distribution pipeline;
one end of the twelfth cold accumulation liquid distribution pipeline is connected with the third cold accumulation tank through a liquid circulation pressure pump (30), the other end of the twelfth cold accumulation liquid distribution pipeline is connected with the office area, and the twelfth cold accumulation liquid distribution pipeline is sequentially provided with a one-way valve (31), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (44) and a one-way valve (45) along the direction from the third cold accumulation tank to the office area;
when the cold supply is not needed in the refrigerator and the office area needs the cold supply, and when no required cold storage liquid is stored in the fourth cold storage tank, the liquid circulation pressure pump (30) is started, the electromagnetic valve (34) and the electromagnetic valve (44) are opened, the liquid circulation pressure pump is conveyed to the office area for cold supply through the one-way valve (31), the adjustable flow rate limiting valve (35), the one-way valve (36) and the one-way valve (45), the one-way valve (41) prevents the cold storage liquid from entering the fourth cold storage tank, the one-way valve (29) prevents the cold storage liquid from entering the third cold storage liquid distribution pipeline, and the amount of the cold storage liquid entering the office area is adjusted through the adjustable flow rate limiting valve (35) according to the temperature requirement in the office area, so that the temperature in the office area is constant.
5. The cold accumulation liquid distribution method of the cold supply distributor according to claim 4, further comprising distributing the cold accumulation liquid to the multi-temperature-zone cold storage system by using a thirteenth cold accumulation liquid distribution pipeline, a fourteenth cold accumulation liquid distribution pipeline, a fifteenth cold accumulation liquid distribution pipeline, a sixteenth cold accumulation liquid distribution pipeline, a seventeenth cold accumulation liquid distribution pipeline and an eighteenth cold accumulation liquid distribution pipeline;
one end of the thirteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the thirteenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the thirteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (6), a one-way valve (7), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (26), a one-way valve (27), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (42) and a one-way valve (43) along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
the cold storage device is characterized in that cold is directly supplied to the fresh-keeping warehouse through a first cold storage tank, wherein a liquid circulation pressure pump (1) is started, an electromagnetic valve (4), an electromagnetic valve (6), an electromagnetic valve (24), an electromagnetic valve (26), an electromagnetic valve (34) and an electromagnetic valve (42) are used, and cold storage liquid enters the fresh-keeping warehouse through an adjustable flow rate limiting valve (5), an adjustable flow rate limiting valve (25), an adjustable flow rate limiting valve (35), a one-way valve (7), a one-way valve (27), a one-way valve (36) and a one-way valve (43) to be;
one end of the fourteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the fourteenth cold accumulation liquid distribution pipeline is connected with the office area, and the fourteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (6), a one-way valve (7), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (26), a one-way valve (27), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (44) and a one-way valve (45) along the direction from the first cold accumulation tank to the office area;
directly supplying cold to an office area through a first cold accumulation tank, starting a liquid circulation pressure pump (1), starting an electromagnetic valve (4), an electromagnetic valve (6), an electromagnetic valve (24), an electromagnetic valve (26), an electromagnetic valve (34) and an electromagnetic valve (44), and allowing cold accumulation liquid to enter the office area through an adjustable flow rate limiting valve (5), an adjustable flow rate limiting valve (25), an adjustable flow rate limiting valve (35), a one-way valve (7), a one-way valve (27), a one-way valve (36) and a one-way valve (45) for cold supply;
one end of the fifteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the fifteenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the fifteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (6), a one-way valve (7), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (28), a one-way valve (29), an electromagnetic valve (42) and a one-way valve (43) along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
directly supplying cold to the fresh-keeping warehouse through a first cold accumulation tank, starting a liquid circulation pressure pump (1), starting an electromagnetic valve (4), an electromagnetic valve (6), an electromagnetic valve (24), an electromagnetic valve (28) and an electromagnetic valve (42), and allowing cold accumulation liquid to enter the fresh-keeping warehouse through an adjustable flow rate limiting valve (5), an adjustable flow rate limiting valve (25), a one-way valve (7), a one-way valve (29) and a one-way valve (43) for cold supply;
one end of the sixteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the sixteenth cold accumulation liquid distribution pipeline is connected with the office area, and the sixteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (6), a one-way valve (7), an electromagnetic valve (24), an adjustable flow rate limiting valve (25), an electromagnetic valve (28), a one-way valve (29), an electromagnetic valve (44) and a one-way valve (45) along the direction from the first cold accumulation tank to the office area;
directly supplying cold to an office area through a first cold accumulation tank, starting a liquid circulation pressure pump (1), starting an electromagnetic valve (4), an electromagnetic valve (6), an electromagnetic valve (24), an electromagnetic valve (28) and an electromagnetic valve (44), and allowing cold accumulation liquid to enter the office area through an adjustable flow rate limiting valve (5), an adjustable flow rate limiting valve (25), a one-way valve (7), a one-way valve (29) and a one-way valve (45) for cold supply;
one end of the seventeenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the seventeenth cold accumulation liquid distribution pipeline is connected with the fresh-keeping warehouse, and the seventeenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (8), a one-way valve (9), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (42) and a one-way valve (43) along the direction from the first cold accumulation tank to the fresh-keeping warehouse;
directly supplying cold to the fresh-keeping warehouse through a first cold accumulation tank, starting a liquid circulation pressure pump (1), starting an electromagnetic valve (4), an electromagnetic valve (8), an electromagnetic valve (34) and an electromagnetic valve (42), and allowing cold accumulation liquid to enter the fresh-keeping warehouse through an adjustable flow rate limiting valve (5), an adjustable flow rate limiting valve (35), a one-way valve (9), a one-way valve (36) and a one-way valve (43) for cold supply;
one end of the eighteenth cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank through a liquid circulation pressure pump (1), the other end of the eighteenth cold accumulation liquid distribution pipeline is connected with the office area, and the eighteenth cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (4), an adjustable flow rate limiting valve (5), an electromagnetic valve (8), a one-way valve (9), an electromagnetic valve (34), an adjustable flow rate limiting valve (35), a one-way valve (36), an electromagnetic valve (44) and a one-way valve (45) along the direction from the first cold accumulation tank to the office area;
directly give office area cooling through first cold-storage jar, liquid circulation force (forcing) pump (1) starts, and solenoid valve (4), solenoid valve (8), solenoid valve (34), solenoid valve (44) start, and cold-storage liquid gets into through adjustable velocity of flow limiting valve (5), adjustable velocity of flow limiting valve (35), check valve (9), check valve (36), check valve (45) office area carries out the cooling.
6. The cold storage fluid distribution method of a cold supply distributor according to any one of claims 1 to 5, wherein each of said quick freezer, said refrigerator and said fresh food compartment is changeable to any one of temperature zone modes of said quick freezer, said refrigerator and said fresh food compartment, and when an office area is included, said office area is changeable to any one of temperature zone modes of said quick freezer, said refrigerator and said fresh food compartment.
7. A refrigerating method of a multi-temperature-zone refrigerator system, characterized in that the cold accumulation liquid is distributed by the cold accumulation liquid distribution method of the cold supply distributor according to any one of claims 1 to 6.
8. The method of claim 7, wherein the freezer, the refrigerator, and the fresh food compartment are refrigerated by a single refrigeration unit, and when the multi-temperature-zone freezer system comprises an office area, the method of refrigerating the freezer, the refrigerator, the fresh food compartment, and the office area is refrigerated by a single refrigeration unit.
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