CN110145918B

CN110145918B - Cold supply distributor and application thereof

Info

Publication number: CN110145918B
Application number: CN201810150850.8A
Authority: CN
Inventors: 李宁; 李志辉; 师清木
Original assignee: China IPPR International Engineering Co Ltd
Current assignee: China IPPR International Engineering Co Ltd
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2021-03-30
Anticipated expiration: 2038-02-13
Also published as: CN110145918A

Abstract

The invention discloses a cold supply distributor and application thereof, wherein the cold supply distributor utilizes a first cold accumulation liquid distribution pipeline, a second cold accumulation liquid distribution pipeline, a third cold accumulation liquid distribution pipeline and a fourth cold accumulation liquid distribution pipeline to distribute cold accumulation liquid for 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 refrigerating house and a fresh-keeping house of the multi-temperature-zone refrigeration house system. The cold storage system adopting the cold supply distributor can flexibly carry out mode conversion of each system, flexibly carry out mode conversion according to the requirements of different seasons on the temperature of different temperature zones, and can be 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.

Description

Cold supply distributor and application thereof

Technical Field

The invention relates to a cooling distributor, in particular to a cooling 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 diagrams of a refrigeration storage system in the prior art, as shown in fig. 1A, a-65 to-45 ℃ ultra-low temperature/quick-freeze storage 502 is independently controlled by a refrigerating unit 500, the refrigerating unit 500 exchanges heat with the-65 to-45 ℃ ultra-low temperature/quick-freeze storage 502 through a refrigerating 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: the existing refrigeration house system increases the cold load along with the cold loss of goods in and out, and in order to adjust the load, the refrigeration host machine needs to be frequently started, so that the refrigeration host machine runs under the 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 is used for distributing cold quantity for a refrigeration house system, and overcomes the defects of a refrigeration system in the prior art.

Disclosure of Invention

The invention aims to provide a cold supply distributor and application thereof, which aim to overcome the defects of increased cold load and low operation efficiency of a refrigeration main machine of a multi-warehouse and multi-machine refrigeration house system in the prior art.

In order to achieve the above object, the present invention provides a cold supply distributor for distributing a cold storage liquid to a multi-temperature-zone freezer system, receiving cold storage liquids of a first cold storage tank, a second cold storage tank, a third cold storage tank, and a fourth cold storage tank of the multi-temperature-zone freezer system, and distributing the received cold storage liquids to a quick freezer, a refrigerator, and a fresh-keeping warehouse of the multi-temperature-zone freezer system, the cold supply distributor comprising:

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 an electromagnetic valve 2 and a one-way valve 3 are sequentially arranged on the first cold accumulation liquid distribution pipeline along the direction from the first cold accumulation tank to the quick-freezing warehouse;

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 an electromagnetic valve 22 and a one-way valve 23 along the direction from the second cold accumulation tank to the refrigerator;

one end of the third 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 third cold accumulation liquid distribution pipeline is connected with the refrigerator, and the third cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve 32 and a one-way valve 33 along the direction from the third cold accumulation tank to the refrigerator; and

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 an electromagnetic valve 42 and a one-way valve 43 along the direction from the fourth cold accumulation tank to the fresh-keeping warehouse.

Preferably, the multi-temperature-zone refrigeration house system further comprises an office area, and the cold supply distributor distributes cold accumulation liquid to the office area by using a fifth cold accumulation liquid distribution pipeline; 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 a one-way valve 41, an electromagnetic valve 44 and a one-way valve 45 along the direction from the fourth cold accumulation tank to the office area.

Preferably, the cold supply distributor further comprises 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.

Preferably, the cold supply distributor further comprises 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.

Preferably, the cold supply distributor further comprises 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 pressure 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.

Preferably, the cold supply distributor further comprises 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, a solenoid valve 24, an adjustable flow rate limiting valve 25, a solenoid valve 28, a one-way valve 29, a solenoid valve 42 and a one-way valve 43 along the direction from the second cold accumulation tank to the fresh-keeping warehouse.

Preferably, the cold supply distributor further comprises 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, a solenoid valve 24, an adjustable flow rate limiting valve 25, a solenoid valve 28, a one-way valve 29, a solenoid valve 44 and a one-way valve 45 along the direction from the second cold accumulation tank to the office area.

Preferably, the cold supply distributor further comprises an eleventh cold accumulation liquid distribution pipeline, one end of the eleventh cold accumulation liquid distribution pipeline is connected to 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 to 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.

Preferably, the cold supply distributor further comprises 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, a solenoid valve 34, an adjustable flow rate limiting valve 35, a one-way valve 36, a solenoid valve 44 and a one-way valve 45 along the direction from the third cold accumulation tank to the office area.

Preferably, the cold supply distributor further comprises 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/or an eighteenth cold accumulation liquid distribution pipeline;

one end of the thirteenth cold storage liquid distribution pipeline is connected with the first cold storage tank through a liquid circulation pressure pump 1, the other end of the thirteenth cold storage liquid distribution pipeline is connected with the fresh-keeping warehouse, and the thirteenth cold storage 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 storage tank to the fresh-keeping warehouse;

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;

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;

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;

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;

eighteenth cold-storage liquid distribution pipeline one end is passed through liquid circulation force (forcing) pump 1 and is connected first cold-storage jar, and the other end is connected the office area, and eighteenth cold-storage liquid distribution pipeline along first cold-storage jar extremely office area's direction has set gradually solenoid valve 4, adjustable velocity of flow restriction valve 5, solenoid valve 8, check valve 9, solenoid valve 34, adjustable velocity of flow restriction valve 35, check valve 36, solenoid valve 44 and check valve 45.

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.

Moreover, in order to achieve the purpose, the invention also provides the application of the cooling distributor in a multi-temperature-zone refrigeration house system.

The multi-temperature-zone refrigeration house system comprises a refrigerating unit, and a quick-freezing house, a cold storage house, a fresh-keeping house and/or an office area are/is refrigerated through the refrigerating unit.

The cooling distributor of the invention has the following technical effects:

1. form a plurality of cooling circuits through the cooling distributor, can distribute cold-storage liquid to required freezer according to the demand, simultaneously, when the freezer corresponds no cold-storage liquid in the cold-storage tank, can distribute this freezer through cold-storage liquid in each cooling circuit with other cold-storage tanks, realized the nimble as required distribution of cold-storage liquid.

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. The cold storage system adopting the cold supply distributor can flexibly carry out mode conversion of each system, flexibly carry out mode conversion according to the requirements of different seasons on the temperature of different temperature zones, and can be 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 schematic view of the cold feed distributor of the present invention;

FIG. 3 is a schematic view of a multi-temperature zone cold storage system to which the cooling distributor of the present invention is applied;

FIG. 4 is a schematic view of a liquid return distributor in a multi-temperature zone refrigeration storage system to which the cooling distributor of the present invention is applied;

fig. 5 is a schematic diagram illustrating the replacement of the temperature zones of the refrigerator in the multi-temperature-zone refrigerator system to which the cooling distributor of the present invention is applied.

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: liquid circulation booster 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

1A, 1C, 1E, 1G, 2B, 2D, 2F, 3B, 3D, 4B: electromagnetic valve

1B, 1D, 1F, 1H, 2A, 2C, 2E, 2G, 3A, 3C, 3E, 4A, 4C, 4D: one-way valve

Detailed Description

Fig. 2 is a schematic view of the cooling distributor according to the present invention, and as shown in fig. 2, the cooling distributor 300 according to the present invention is used for cold accumulation liquid distribution of a multi-temperature-zone freezer system, and the freezer system may include a refrigerating unit 100, a first cold accumulation tank 110, a second cold accumulation tank 120, a third cold accumulation tank 130, a fourth cold accumulation tank 140, a quick freezer 150, a freezer 160, a refrigerator 170, a fresh-keeping storage 180, an office area 190, the cooling distributor 300, and a liquid return distributor 400. The cold supply distributor receives cold accumulation liquids of the first cold accumulation tank 110, the second cold accumulation tank 120, the third cold accumulation tank 130 and the fourth cold accumulation tank 140 of the multi-temperature-zone freezer system and distributes the received cold accumulation liquids to the quick freezer 150, the freezer 160, the refrigerator 170, the fresh keeping warehouse 180 and the office area 190 of the multi-temperature-zone freezer system.

The cold supply distributor comprises 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, wherein,

one end of the first cold accumulation liquid distribution pipeline is connected with the first cold accumulation tank 110 through the liquid circulation pressure pump 1, the other end of the first cold accumulation liquid distribution pipeline is connected with the quick-freezing warehouse 150, and the first cold accumulation liquid distribution pipeline is sequentially provided with the electromagnetic valve 2 and the one-way valve 3 along the direction from the first cold accumulation tank 110 to the quick-freezing warehouse 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 supply distributor further comprises a sixth cold accumulation liquid distribution pipeline, wherein one end of the sixth cold accumulation liquid distribution pipeline is connected to the first cold accumulation tank 110 through the liquid circulation pressure pump 1, the other end of the sixth cold accumulation liquid distribution pipeline is connected to the freezer 160, and the sixth cold accumulation 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 22 and the one-way valve 23 along the direction from the first cold accumulation 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 supply distributor further comprises a seventh cold accumulation liquid distribution pipeline, one end of the seventh cold accumulation liquid distribution pipeline is connected to the first cold accumulation tank 110 through the liquid circulation pressure pump 1, the other end of the seventh cold accumulation liquid distribution pipeline is connected to the refrigerator 170, 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 110 to the refrigerator 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 the preferred embodiment of the present invention, the cold supply distributor further includes an eighth cold accumulation liquid distribution pipeline, one end of the eighth cold accumulation liquid distribution pipeline is connected to the second cold accumulation tank 120 through the liquid circulation pressure pump 20, the other end is connected to the refrigerator 170, and the eighth cold accumulation liquid distribution pipeline is sequentially provided with a check valve 21, an electromagnetic valve 24, an adjustable flow rate limiting valve 25, an electromagnetic valve 26, a check valve 27, an electromagnetic valve 32, and a check valve 33 along the direction from the second cold accumulation tank 120 to the refrigerator 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 supply distributor further comprises a ninth cold accumulation liquid distribution pipeline, one end of the ninth cold accumulation liquid distribution pipeline is connected to the second cold accumulation tank 120 through the liquid circulation pressure pump 20, the other end is connected to the fresh-keeping warehouse 180, and the ninth cold accumulation liquid distribution pipeline is sequentially provided with a check valve 21, a solenoid valve 24, an adjustable flow rate limiting valve 25, a solenoid valve 28, a check valve 29, a solenoid valve 42 and a check valve 43 along the direction from the second cold accumulation 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 supply distributor further comprises a tenth cold accumulation liquid distribution pipeline, one end of the tenth cold accumulation liquid distribution pipeline is connected to the second cold accumulation tank 120 through the liquid circulation pressure pump 20, the other end is connected to the office area 190, and the tenth cold accumulation liquid distribution pipeline is sequentially provided with a check valve 21, a solenoid valve 24, an adjustable flow rate limiting valve 25, a solenoid valve 28, a check valve 29, a solenoid valve 44 and a check valve 45 along the direction from the second cold accumulation 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 supply distributor further comprises an eleventh cold accumulation liquid distribution pipeline, one end of the eleventh cold accumulation liquid distribution pipeline is connected to the third cold accumulation tank 130 through the liquid circulation pressure pump 30, the other end of the eleventh cold accumulation liquid distribution pipeline is connected to the fresh-keeping warehouse 180, and the eleventh cold accumulation liquid distribution pipeline is sequentially provided with a check valve 31, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a check valve 36, an electromagnetic valve 42 and a check valve 43 along the direction from the third cold accumulation 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 the preferred embodiment of the present invention, the cold supply distributor further comprises a twelfth cold storage liquid distribution pipeline, 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 a check valve 31, an electromagnetic valve 34, an adjustable flow rate limiting valve 35, a check valve 36, an electromagnetic valve 44 and a 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 supply distributor further comprises a thirteenth cold storage liquid distribution pipeline, 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 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 check valve 7, the electromagnetic valve 24, the adjustable flow rate limiting valve 25, the electromagnetic valve 26, the check valve 27, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the check valve 36, the electromagnetic valve 42, and the check valve 43 along the direction from the first cold storage tank 110 to the fresh-keeping warehouse 180. 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 supply distributor further includes a fourteenth cold storage liquid distribution pipeline, 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 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 are sequentially disposed along a direction from the first cold storage tank 110 to the office area 190. 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 supply distributor further includes a fifteenth cold storage liquid distribution pipeline, 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 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 42, and the check valve 43 along the direction from the first cold storage tank 110 to the fresh-keeping warehouse 180. 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 supply distributor further includes a sixteenth cold storage liquid distribution pipeline, 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 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 44 and the one-way valve 45 along the direction from the first cold storage tank 110 to the office. 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 supply distributor further comprises a seventeenth cold storage liquid distribution pipeline, 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 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 check valve 9, the electromagnetic valve 34, the adjustable flow rate limiting valve 35, the check valve 36, the electromagnetic valve 42 and the check valve 43 along the direction from the first cold storage tank 110 to the fresh-keeping warehouse 180. 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 the preferred embodiment of the present invention, the cold supply distributor further comprises an eighteenth cold storage liquid distribution pipeline, 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 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 cold storage tank 110 to the office area 190. 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.

The cooling distributor of the present invention can be applied to a multi-temperature zone freezer system, and fig. 3 is a schematic view of the multi-temperature zone freezer system to which the cooling distributor of the present invention is applied, as shown in fig. 3, the multi-temperature zone freezer system refrigerates a quick-freezing chamber 150, a freezing chamber 160, a refrigerating chamber 170, a fresh-keeping chamber 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 accumulation tank 140 is a cold accumulation tank at 0 to 15 ℃.

Fig. 4 is a schematic view of a liquid return distributor in a multi-temperature-zone refrigeration storage system to which the cold supply distributor of the present invention is applied, and as shown in fig. 4, the liquid return distributor includes a first cold storage liquid return pipeline, a second cold storage liquid return pipeline, a third cold storage liquid return pipeline, a fourth cold storage liquid return pipeline, and a fifth cold storage 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 illustrating the replacement of the temperature zones of the refrigerator in the multi-temperature-zone refrigerator system to which the cooling distributor of the present invention is applied, and as shown in fig. 5, the multi-temperature-zone refrigerator system using the cooling distributor of the present invention can divide the refrigerator into different temperature zones as required, for example: 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 supply distributor provided by the invention forms a plurality of cold supply lines, so that the cold accumulation liquid can be distributed into a required refrigeration house according to requirements, 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 into the refrigeration house through each cold supply line, so that the cold accumulation liquid can be flexibly distributed according to requirements.

By adopting 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 storage liquid can circulate in the refrigeration houses and the cold storage 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.

The cooling distributor of the invention is preferably applied to a multi-temperature-zone refrigeration house system adopting 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 needs, for example, the quick-freezing house, the refrigeration 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

1. The utility model provides a cooling distributor, its characterized in that, cooling distributor is used for carrying out cold-storage liquid distribution to multi-temperature-zone freezer system, receives the cold-storage liquid of the first cold-storage jar of multi-temperature-zone freezer system, second cold-storage jar, third cold-storage jar and fourth cold-storage jar and the cold-storage liquid that will receive distribute to quick-freeze storehouse, freezer, refrigerator and the fresh-keeping storehouse of multi-temperature-zone freezer system, cooling distributor includes:

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 an electromagnetic valve (2) and a one-way valve (3) are sequentially arranged on the first cold accumulation liquid distribution pipeline along the direction from the first cold accumulation tank to the quick-freezing warehouse;

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 an electromagnetic valve (22) and a one-way valve (23) along the direction from the second cold accumulation tank to the refrigerator;

one end of the third 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 third cold accumulation liquid distribution pipeline is connected with the refrigerator, and the third cold accumulation liquid distribution pipeline is sequentially provided with an electromagnetic valve (32) and a one-way valve (33) along the direction from the third cold accumulation tank to the refrigerator;

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 an electromagnetic valve (42) and a one-way valve (43) along the direction from the fourth cold accumulation tank to the fresh-keeping warehouse;

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;

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;

one end of the eighth 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 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;

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;

a tenth cold accumulation liquid distribution pipeline, one end of which is connected with the second cold accumulation tank through a liquid circulation pressure pump (20), the other end of which 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; and

eleventh cold accumulation liquid distribution pipeline, eleventh cold accumulation liquid distribution pipeline one end is passed through liquid circulation force (30) and is connected the third cold accumulation jar, the other end is connected the fresh-keeping storehouse, and eleventh cold accumulation liquid distribution pipeline along the third cold accumulation jar extremely the direction in fresh-keeping storehouse has set gradually check valve (31), solenoid valve (34), adjustable velocity of flow restriction valve (35), check valve (36), solenoid valve (42) and check valve (43).

2. The cold supply distributor according to claim 1, wherein the multi-temperature zone cold storage system further comprises an office area, and the cold supply distributor distributes the cold storage liquid to the office area by using a fifth cold storage liquid distribution pipeline;

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 a one-way valve (41), an electromagnetic valve (44) and a one-way valve (45) along the direction from the fourth cold accumulation tank to the office area.

3. A cold supply dispenser according to claim 1, further comprising:

and 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.

4. A cold supply distributor according to claim 3, further comprising a thirteenth cold storage liquid distribution line, a fourteenth cold storage liquid distribution line, a fifteenth cold storage liquid distribution line, a sixteenth cold storage liquid distribution line, a seventeenth cold storage liquid distribution line and/or an eighteenth cold storage liquid distribution line;

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;

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;

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;

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;

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;

eighteenth cold-storage liquid distribution pipeline one end is passed through hydrologic cycle force (forcing) pump (1) and is connected first cold-storage jar, the other end is connected the office area, and eighteenth cold-storage liquid distribution pipeline along first cold-storage jar extremely the regional direction of office has set gradually solenoid valve (4), adjustable velocity of flow limiting valve 5, solenoid valve (8), check valve (9), solenoid valve (34), adjustable velocity of flow limiting valve (35), check valve (36), solenoid valve (44) and check valve (45).

5. A cold supply distributor according to any one of claims 1 to 4, 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.

6. Use of a cooling distributor according to any one of claims 1 to 5 in a multi-temperature zone cold storage system.

7. The use of claim 6, wherein said multi-temperature zone freezer system comprises a refrigeration unit by which said freezer, said refrigerator and said fresh food compartment are refrigerated, and wherein said multi-temperature zone freezer system comprises an office area 190, said use refrigerates said freezer 150, said freezer 160, said refrigerator 170, said fresh food compartment 180 and said office area 190 by a refrigeration unit 100.