CN215260721U

CN215260721U - Fixed cold station system

Info

Publication number: CN215260721U
Application number: CN202120368153.7U
Authority: CN
Inventors: 田文胜; 崔明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-12-21
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a fixed cold station system in the refrigeration technology field, this fixed cold station system include control system and the refrigerating system, refrigerator, the cold storage storehouse of being connected with control system, and control system is used for controlling each partial operation, and refrigerating system is arranged in refrigeration and circulates the cold liquid of storage to refrigerator, stores up the freezer and treats refrigeration plant, and the refrigerator is used for keeping warm to article, and the cold storage storehouse is used for filling cold to external equipment. The utility model discloses utilize phase change material to save the cold energy of cold station for the compressor of cold station need not to be in operating condition for a long time, has fully saved the electric power resource, has guaranteed the life of equipment simultaneously, and has saved the fund cost.

Description

Fixed cold station system

Technical Field

The utility model relates to a refrigeration technology field, specific theory relates to a fixed cold station system.

Background

The Cold Chain generally refers to Cold Chain Logistics (Cold Chain Logistics), and indicates that the refrigerated and frozen food is always in a specified low-temperature area environment in the whole processes of production, storage and transportation, so as to avoid deterioration of corresponding articles due to temperature problems. The application range of the cold chain is as follows: primary agricultural products such as vegetables, fruits, meat, poultry eggs, aquatic products and the like, primary processed foods such as quick-frozen foods, ice creams, dairy products and the like, and special products such as medicines.

At present, the cold chain is mainly used for conveying food, and the food cold chain is mainly used for guaranteeing the quality of perishable food and mainly adopts low-temperature storage and transportation, so that the cold chain has higher and more complex requirements and larger energy consumption than a logistics system of general normal-temperature articles, and the construction investment is also much larger, thereby being a huge system engineering.

The existing cold station comprises a refrigerating system consisting of a compressor, an evaporator and the like, and cold energy produced by the refrigerating system is directly sent to an emergency freezing area and a freezing area for freezing or refrigerating. Such cold station does not have cold storage system, and cold energy stability is not enough, need rely on the incessant start-up of automatic monitoring equipment day and night to refrigerate, has consumed a large amount of energy, has also consumed a large amount of capital costs simultaneously. In addition, when the cold station goes in and out of goods, the cold energy of the whole cold station is insufficient, and the risk of deterioration of goods is easy to occur.

The existing cold station structure adopts a fan to blow an evaporator to form air convection, so that air cooling type refrigeration is realized, the heat exchange efficiency is low, and the refrigeration efficiency and the energy consumption are low.

The above-mentioned drawbacks are worth solving.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, the utility model provides a fixed cold station system.

The utility model discloses technical scheme as follows:

a fixed cold station system comprises a control system, and a refrigerating system, a cold storage and a cold storage warehouse which are connected with the control system.

The control system is used for controlling the operation of the refrigerating system, the cold storage and controlling the liquid flow among the refrigerating system, the cold storage and the cold storage;

the refrigerating system is used for refrigerating in the valley of electricity utilization and circulating cold storage liquid to the cold storage and the cold storage warehouse;

the refrigerator is used for receiving the liquid conveyed by the refrigerating system and carrying out low-temperature heat preservation on articles in the refrigerator, the heated liquid is conveyed back to the refrigerating system, and a plurality of temperature zones are arranged in the refrigerator;

the cold storage house is connected with the equipment to be refrigerated and is filled with cold.

According to above scheme the utility model discloses, a serial communication port, refrigerating system the refrigerator and be equipped with corresponding temperature-sensing ware and liquid level inductor in the cold storage storehouse respectively, the temperature-sensing ware with the liquid level inductor all with control system connects.

According to the above scheme the utility model discloses, its characterized in that, refrigerating system with between the freezer refrigerating system with store up between the freezer refrigerating system with treat between the refrigeration plant store up the freezer with treat and all be equipped with between the refrigeration plant and fill cold charge device.

Further, fill cold charge device and include automatically controlled valve body and water pump, automatically controlled valve body with the water pump all with control system connects, is located refrigerating system and treat between the refrigeration plant store with treat between the refrigeration plant fill cold charge device still includes quick change coupler.

According to the above scheme the utility model discloses, a serial communication port, be equipped with phase transition storage area and refrigeration district in the refrigerating system, be equipped with the recirculated cooling liquid in the phase transition storage area, be equipped with the refrigeration coolant liquid in the refrigeration district, the recirculated cooling liquid is realized refrigerating system the freezer and store up circulation between the freezer.

Further, the solid-liquid phase change temperature of the circulating cooling liquid is lower than that of the refrigerating cooling liquid.

Furthermore, a heat-preservation cooling liquid is arranged in the temperature area, and the circulating cooling liquid conveyed by the phase-change storage area is arranged outside the heat-preservation cooling liquid.

Furthermore, a compressor is arranged in the control system, and a refrigerating line of the compressor extends into the refrigerating area and is connected with the evaporator.

According to the above scheme the utility model discloses, its characterized in that, store up cold coolant liquid in the cold storage storehouse.

Further, the solid-liquid phase change temperature of the cold storage cooling liquid is higher than the solid-liquid phase change temperature of the circulating cooling liquid.

The utility model has the advantages that the utility model stores the cold energy of the cold station by using the phase-change material, so that the compressor of the cold station does not need to be in the working state for a long time, the electric power resource is fully saved, the service life of the equipment is ensured, and the capital cost is saved; meanwhile, a liquid heat exchange mode is adopted, so that the refrigeration efficiency of the compressor is improved, and the electric quantity of a refrigeration unit is reduced. The utility model stores the goods in the cold station at low temperature through the cold storage, thereby ensuring that the goods can not go bad, and meanwhile, the cold energy of other parts of the cold station can not be influenced by only charging and discharging the cold energy of the cold storage when the goods are put in and taken out from the cold station, thereby avoiding the goods in the cold station going bad; and meanwhile, external transportation equipment is rapidly cooled, so that a perfect cold chain system is formed, and the transportation cost of the cold chain is reduced.

Drawings

FIG. 1 is a system configuration diagram of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is the schematic diagram of the present invention for rapidly cooling the external transportation device.

In the figure, 10 — the refrigeration system; 11-a phase change storage region; 111-circulating a cooling liquid; 12-a refrigeration zone; 121-refrigeration cooling liquid; 13-a compressor; 131-a condenser; 132-an evaporator;

20-a refrigerator; 21-a first temperature zone; 22-a second temperature zone; 23-a third temperature zone;

30-a cold storage; 31-cold storage coolant;

41-an electric control valve body; 42-a water pump; 43-quick change coupler;

50-a refrigerator car; 51-cold box.

Detailed Description

The invention is further described with reference to the following figures and embodiments:

as shown in fig. 1 and 2, a fixed cold station system includes a control system, and a refrigeration system 10, a refrigerator 20, and a cold storage 30 connected to the control system, wherein cold charging devices are respectively disposed between the refrigeration system and the refrigerator, between the refrigeration system and the cold storage, between the refrigeration system and a device to be refrigerated, and between the cold storage and the device to be refrigerated. The control system controls the operation of the refrigeration system 10, the cold storage 20 and the cold storage 30, the cold storage 20 is used for providing a refrigeration environment for goods in the cold station, the cold storage 30 is used for cold charging for external equipment to be refrigerated, and in addition, the control system controls the operation of the cold charging device to further control the exchange of cold energy among all parts.

The utility model provides refrigeration by the refrigeration system 10, provides cold energy for the cold storage 20 and the cold storage 30, adopts centralized refrigeration, ensures centralized control of the system, improves the work efficiency, and reduces the overflow loss of cold volume in the operation; through separating freezer 20 and cold storage 30, avoid influencing depositing of article in freezer 20 when filling cold to the refrigeration plant of treating of outside, freezer 20 and cold storage 30 overall arrangement compressor and refrigerating plant can reduce the energy consumption of cold station by a wide margin simultaneously.

Cold energy refers to the energy that utilizes phase change material as the carrier, through phase change material phase transition process and conversion. When the phase change material is transformed from a liquid state to a solid state, heat is released, which is understood to be the release of thermal energy; when transforming from a solid state to a liquid state, thermal energy is absorbed, understood as releasing cold energy. The utility model discloses utilize phase change material's physics phase transition process to save the cold energy to the utilization is filled cold charge device and is filled cold fast.

1. Refrigeration system

The refrigeration system 10 uses a compressor 13 (industrial refrigeration compressor) for refrigeration, the compressor is connected with a control system, and the control system controls the working state of the compressor. And, the utility model provides a refrigerating system works in the time quantum of power consumption valley, refrigerates when night (power consumption valley), and the capital cost that refrigeration consumed can be saved to the principle of the flat industrial power consumption of make full use of peak valley.

In addition, in order to guarantee at the normal refrigeration or the heat preservation function of power consumption peak period and with the level period, the utility model provides a be equipped with phase transition storage area 11 and refrigeration district 12 in refrigerating system 10, refrigeration district 12 is used for providing the refrigeration environment, and phase transition storage area 11 is used for saving cold volume. Specifically, the refrigeration area 12 is internally provided with refrigeration cooling liquid 121, the phase change storage area 11 is internally provided with circulating cooling liquid 111, and the circulating cooling liquid 111 realizes circulation among the refrigeration system 10, the refrigerator 20 and the refrigeration storage 30, that is, circulation of cooling capacity among the refrigeration system 10, the refrigerator 20 and the refrigeration storage 30 can be realized through circulation of the circulating cooling liquid 111.

In order to guarantee the refrigeration of refrigeration area 12 and the cold storage of phase change memory area 11, the utility model discloses a liquid phase transition principle keeps warm. The solid-liquid phase-change temperature of circulating coolant 111 is lower than the solid-liquid phase-change temperature of refrigerant coolant 121, and the operation control temperature of refrigerant system 10 is between the solid-liquid phase-change temperature of circulating coolant 111 and the solid-liquid phase-change temperature of refrigerant coolant 121. Since the refrigerating cooling liquid 121 has a high solid-liquid phase-change temperature and the circulating cooling liquid 111 has a relatively low solid-liquid phase-change temperature, when the refrigeration system 10 operates at the control temperature, the refrigerating cooling liquid 121 is in an icing state (i.e., a solid state), and the circulating cooling liquid 111 is in a liquid state, and the refrigerating cooling liquid 121 is used for preserving cold energy of the circulating cooling liquid 111.

Air has a very low specific heat capacity (cp 1.003kJ/(kg K) 250K), and compared with water, air has no heat storage capacity and very low heat transfer capacity, so that air is not suitable for high-power heat transportation and exchange. The utility model discloses utilize the solid-liquid phase change of refrigeration coolant liquid 121 to absorb thermal principle and come to refrigerate heat preservation to recirculated coolant liquid 111, it can fully increase heat retaining time. The following description will be made by taking temperature changes of ice and water as examples: the specific heat capacity of water is 4.2KJ/(KG. ℃), the specific heat capacity of ice is 2.1KJ/(KG. ℃) and the heat of dissolution of ice is 335KJ/kg, the heat of fusion of ice is far greater than the specific heat capacity of water and ice, and energy storage refrigeration can be carried out by using smaller volume weight. It can be calculated that about 80 kg of water is lowered by 1 c to melt 1 kg of ice, which means that the low temperature region of the article can be maintained for a long time with a small amount of ice.

The utility model discloses utilize above-mentioned principle, the dissolution heat absorption of make full use of coolant liquid freezes article, especially utilizes the refrigerating fluid to locate the phase transition in order to guarantee that the cold station is in the low temperature state for a long time in setting for low temperature, for example adopts the refrigerating fluid of-30 ℃ icing state, just can make article maintain near-30 ℃ for a long time. Utilize above-mentioned principle, in addition heat waste and the very big conveying efficiency that liquid conveying cold energy reduces, the utility model discloses can make the cold storage effect of cold station be eighty times of traditional cold chain cold station effect. Additionally, the utility model discloses a liquid refrigeration, but the non-air cooling mode refrigerates, through the abundant contact that adopts liquid phase change material and evaporimeter, has greatly improved heat exchange efficiency, reduces the power consumption cost, reduces energy dissipation simultaneously.

Preferably, the phase-change storage area 11 surrounds the periphery of the refrigeration area 12, so that the refrigeration cooling liquid 121 in the refrigeration area 12 can achieve the refrigeration and heat preservation effects on the phase-change cooling liquid 111 in the phase-change storage area 11.

Preferably, the compressor is connected with a power supply management unit, and the power supply management unit is connected with a power supply; the refrigeration line of the compressor extends into the interior of the refrigeration zone of the refrigeration system 10 and is connected to the evaporator 132 for the exchange of cold energy; the compressor is also connected to the condenser 131 through a heat discharge line, and the condenser 131 is provided with an exhaust fan for discharging internal heat. In the specific implementation process, the refrigeration system performs refrigeration through the compressor, and the evaporator absorbs heat in the phase-change material, so that the liquid-solid phase change of the phase-change material is realized and cold storage is realized.

In one embodiment, the refrigeration cooling liquid is a cooling liquid with a solid-liquid phase change temperature of-40 ℃, the external circulating cooling liquid can be a cooling liquid with a solid-liquid phase change temperature of-50 ℃, and the compressor controls the refrigeration system to work at-45 ℃, so that the refrigeration cooling liquid is changed from a liquid state to a solid state, and the circulating cooling liquid is still in a liquid state. The size of the refrigeration system and the type of each cooling liquid required by the cooling station systems of different sizes are different and can be selected according to specific requirements.

2. Refrigerator with a door

The refrigerator 20 is used to store articles stored in a cold station, and to store and refrigerate physical products (such as fresh food, vegetables, and medicines). The refrigerator 20 can receive the liquid (i.e. the circulating cooling liquid 111) delivered by the refrigeration system and utilize the liquid to realize low-temperature preservation of the goods; and after the temperature of the liquid is raised, the liquid is circulated back to the refrigerating system for repeated refrigeration. The absence of a separate refrigeration unit within the refrigerator 20 substantially reduces the energy consumption of the cold station.

Be equipped with the warm area of depositing article in the refrigerator 10, similar with refrigerating system's "heat preservation" function, the utility model provides a refrigerator adopts the phase transition principle of coolant liquid to keep warm. Specifically, heat preservation cooling liquid is arranged in the temperature zone, circulating cooling liquid conveyed by the phase change storage area is arranged outside the heat preservation cooling liquid, the solid-liquid phase change temperature of the heat preservation cooling liquid is higher than the solid-liquid phase change temperature of the circulating cooling liquid, the heat preservation cooling liquid is refrigerated through circulation of the circulating cooling liquid, and the temperature zone is cooled and preserved through the heat preservation cooling liquid.

In a specific implementation process, circulating cooling liquid in a low-temperature state enters a temperature zone in a refrigerator to refrigerate heat-preservation cooling liquid in the temperature zone, and the temperature of the circulating cooling liquid is lower than the solid-liquid phase change temperature of the heat-preservation cooling liquid, so that the heat-preservation cooling liquid is refrigerated to be in a solid state, and the temperature of the circulating cooling liquid is raised to be slightly higher. In the subsequent working process, the circulation process of the circulating cooling liquid is stopped, and then the heat preservation of the temperature area is realized by the heat preservation cooling liquid, so that the refrigerating temperature in the temperature area is ensured.

In order to store articles with different temperature requirements, a plurality of temperature zones are provided in the refrigerator 20, and the different temperature zones are controlled to be at different refrigerating temperatures. The solid-liquid phase change temperatures of the heat preservation cooling liquid in different temperature zones are different, and different refrigeration temperatures of different temperatures are realized by adopting the heat preservation cooling liquid with different solid-liquid phase change temperatures. The different temperature zones of the refrigerator 20 store cold simultaneously during the off-peak period of electricity consumption, and when the cold is insufficient during the day (for example, new goods are loaded), the circulating cooling liquid 111 in the refrigerating system is input through the control system.

In one embodiment, a first temperature zone 21, a second temperature zone 22, and a third temperature zone 23 are disposed in the refrigerator 20, a first heat-preserving cooling liquid is disposed in the first temperature zone 21, a second heat-preserving cooling liquid is disposed in the second temperature zone 22, and a third heat-preserving cooling liquid is disposed in the third temperature zone 23, and the solid-liquid phase change temperature of the first heat-preserving cooling liquid, the solid-liquid phase change temperature of the second heat-preserving cooling liquid, and the solid-liquid phase change temperature of the third heat-preserving cooling liquid are all different.

For example, the first heat-preserving cooling liquid is cooling liquid with a solid-liquid phase change temperature of-40 ℃, and a refrigerating temperature of-35 ℃ is provided by the cooling liquid with the temperature of-40 ℃; the second heat-preservation cooling liquid is cooling liquid with the solid-liquid phase change temperature of-15 ℃, and the refrigeration temperature of-10 ℃ is provided by the cooling liquid with the temperature of-15 ℃; the third heat-preservation cooling liquid is cooling liquid with the fixed liquid phase-change temperature of 0 ℃, and the refrigeration temperature of 2-8 ℃ is provided through the cooling liquid with the temperature of 0 ℃.

3. Cold storage

The cold storage 30 is connected to an external device to be cooled for cooling the device to be cooled, and the device to be cooled may be a refrigerator car, a freezing barrel, or a refrigerator in an office area. Specifically, the cold storage 30 is connected to the phase change storage area 11 of the refrigeration system, and obtains and stores cold energy through circulation of liquid, so as to prepare for cold charging of the equipment to be refrigerated. Preferably, the cold storage 30 is connected with the equipment to be refrigerated through a quick-change connector, so as to realize quick transmission of the cooling liquid.

The utility model has no independent refrigerating device in the cold storage 30, which can reduce the energy consumption of the cold station; additionally, the utility model discloses with the separation of cold storage storehouse 30 and freezer 20 can avoid storing up cold storage storehouse 30 to influence the cold-stored effect of cold station interior article when filling cold outward.

The utility model discloses well store up and store up cold cooling liquid 31 in the cold storehouse 30, store up cold cooling liquid 31's solid-liquid phase-change temperature is higher than the solid-liquid phase-change temperature of recirculated cooling liquid 111, refrigerates cold cooling liquid 31 through recirculated cooling liquid 111. Preferably, the cold storage cooling liquid is a supercooled liquid, the circulating cooling liquid 111 refrigerates the cold storage cooling liquid 31 to a critical state, and in the subsequent use process, the supercooling principle and the quick change connector are utilized to charge cold for the equipment to be refrigerated.

The utility model discloses a store up the freezer and wait refrigeration plant as "intermediate equipment" to outside and fill cold, can annotate many times simultaneously and wait refrigeration plant. The cold storage warehouse is a large-scale cold storage warehouse, mainly refers to a cold storage warehouse which is built in each existing large logistics center and is used for freezing and refrigerating a large amount of vegetable and fruit foods.

4. Cold charging device

The cold charging device comprises an electric control valve body 41, a water pump 42 and a quick-change connector 43, and the electric control valve body 41, the water pump 42 and the quick-change connector 43 are all connected with the control system. Specifically, the cooling devices located between the refrigeration system 10 and the refrigerator 20, between the refrigeration system 10 and the cold storage 30, and between the refrigeration system 10 and the equipment to be cooled are water pumps 42; the cold charging device between the refrigeration system 10 and the equipment to be refrigerated and between the cold storage 30 and the equipment to be refrigerated further comprises an electric control valve body 41 and a quick-change connector 43.

The control system controls the circulation of cooling liquid between the refrigeration system 10 and the equipment to be refrigerated and between the cold storage 30 and the equipment to be refrigerated by controlling the opening/closing of the electric control valve body 41 and the quick change connector 43, and the quick change connector 43 realizes the quick flow of the liquid; the flow of the cooling liquid between the refrigeration system 10 and the refrigerator, between the refrigeration system 10 and the cold storage 30, and between the refrigeration system 10 and the equipment to be refrigerated is realized by controlling the operation of the water pump 42.

5. Control system

The control system is used for monitoring the working condition of each component unit and controlling the normal operation of the whole cold station. Specifically, the control system is used for controlling the operation of the compressor 13 so as to enable the compressor to refrigerate when the cold power is insufficient, and controlling the refrigeration system 10 to work in the electricity utilization valley time period; the control system also controls a power system and a switch system, and controls the flowing state of the circulating cooling liquid 111 between the refrigerating system 10 and the cold storage 20 and the cold storage 30 through the control system and the switch system, so that the normal refrigerating and heat preservation effects of the refrigerating system 10, the cold storage 20 and the cold storage 30 are ensured through the flowing of the circulating cooling liquid 111.

In an embodiment, the refrigeration system 10, the refrigerator 20 and the cold storage 30 are respectively provided with corresponding temperature sensors (not shown, the same applies hereinafter), the temperature sensors are connected to the control system, and the control system senses temperatures of different positions in the refrigeration system 10, the refrigerator 20 and the cold storage 30 through the temperature sensors to realize a real-time monitoring function, so as to perform a flow of the circulating cooling liquid 111 when the temperature of the refrigeration system 10, the refrigerator 20 or the cold storage 30 is insufficient, thereby ensuring the refrigeration and cold storage effects of the refrigeration system 10, the refrigerator 20 and the cold storage 30.

In an embodiment, corresponding liquid level sensors (not shown, the same below) are respectively disposed in the refrigeration system 10, the refrigerator 20, and the cold storage 30, the liquid level sensors are connected to the control system, and the control system senses liquid levels of the cooling liquids at different positions in the refrigeration system 10, the refrigerator 20, and the cold storage 30 through the liquid level sensors to realize a real-time monitoring function, so that the circulating cooling liquid 111 flows when the circulating cooling liquid 111 in the refrigeration system 10, the refrigerator 20, or the cold storage 30 is insufficient, thereby ensuring the refrigeration and cold storage effects of the refrigeration system 10, the refrigerator 20, and the cold storage 30.

As shown in fig. 2 and fig. 3, the fixed cold station system of the present invention is used in the process of cooling external equipment (such as a cold chain transport vehicle, i.e. a refrigerator car 50):

a. the fixed cold station system performs refrigeration preparation, the control system controls the compressor 13 to work, and then the refrigeration cooling liquid 121 charges and cools the circulating cooling liquid 111, so that the refrigeration cooling liquid 121 is below the freezing point temperature (namely in a solid state), meanwhile, the circulating cooling liquid 111 and the cold storage cooling liquid 31 are in a liquid state, and the temperature is controlled to be near the freezing point;

b. the refrigerator car 50 enters the designated cold-charging position of the fixed cold station and is connected with the quick-change connector 43, two liquids A, B are stored in the refrigerator car 50, the liquid A is placed in the container (namely the cold box 51), and the solution B is placed in the copper pipe inside the container;

c. the control system is started, the cold storage cooling liquid 31 in the cold storage 30 is driven to be filled into the container of the refrigerator car 50, the cooling liquid which is changed into room temperature in the refrigerator car 50 is replaced, meanwhile, the circulating cooling liquid 111 in the refrigerating system 10 is driven to enter the copper pipe in the container and continuously circulate, and the replaced liquid A is filled with cold;

d. and after the temperature sensor and the liquid level sensor detect that the liquid A in the container is changed into a solid, the cold charging process is finished, the quick-change connector is disassembled, and the refrigerated vehicle is driven out of the charging station.

The fixed cold station system is used for rapidly cooling the external equipment, so that the external equipment is prevented from continuously consuming diesel oil in the transportation process to cool, the raw material cost can be reduced, and the environmental pollution is reduced.

The utility model discloses at the realization in-process, specifically include refrigerated step, fill cold step: in the refrigeration step, the control system controls the compressor to refrigerate the refrigeration system in the electricity utilization valley, so that the refrigeration cooling liquid in the refrigeration system is frozen, and the circulating cooling liquid is in a liquid state; in the step of cold filling, the control system controls the circulating cooling liquid to be transported to the refrigerator and the cold storage, and the heat preservation cooling liquid in the middle temperature area of the refrigerator preserves the heat of the refrigerator.

The utility model discloses a fill cold step still includes the step of filling cold of treating refrigeration plant (like the refrigerator car). Specifically, the method comprises the following steps: connecting the equipment to be refrigerated and a fixed cold station system, and controlling the cold storage cooling liquid in the cold storage to replace the cooling liquid in the container of the equipment to be refrigerated by the control system; the control system controls the circulating cooling liquid in the refrigerating system to enter a copper pipe of an inner container of the equipment to be refrigerated and refrigerates the cooling liquid in the container; and after the refrigeration is finished, disconnecting the equipment to be refrigerated and the fixed cold station.

After the refrigeration is finished or after the refrigeration is finished, the utility model discloses a fixed cold station system's realization process still includes heat retaining process. Specifically, along with the heat preservation of the articles in the refrigerator/the equipment to be refrigerated and the equipment, the heat dissipation of the surrounding environment and the like, the temperature in the system is gradually increased, the refrigeration cooling liquid is gradually dissolved at the moment, the temperature of the surrounding circulating cooling liquid is absorbed in the dissolving process, and the refrigeration and heat preservation effects of the circulating cooling liquid are further realized.

In order to ensure the working states of the refrigerating system, the cold storage and the cold storage, the utility model discloses in the step of refrigeration, the control system detects the liquid level and the temperature in the refrigerating system in real time or regularly, and the circulation of circulating cooling liquid is carried out according to the liquid level of each part to ensure the balance of the cooling liquid state of each part; and refrigerating according to the internal temperature so as to ensure that the cold energy in the refrigerating system can supply the requirement of the whole cold station.

In the same way, in order to guarantee to fill cold in-process or the refrigeration after the process, heat preservation effect, the utility model discloses in the step of filling cold, control system detects liquid level and temperature in refrigerator and the storage cold storehouse in real time or regularly to carry out the transport of recirculated cooling liquid according to the liquid level/temperature in refrigerator or the storage cold storehouse.

The utility model discloses an aspect utilizes the solid-liquid phase transition heat absorption principle of phase change material (coolant liquid), carries out cold and hot exchange and cold storage through the mode of a large amount of cold energies of liquid-solid conversion absorption to through the frozen article of the mode of its solid-liquid conversion release cold energy, especially utilize the coolant liquid to locate the phase transition in order to guarantee that cold station is in under the low temperature state for a long time in the settlement low temperature. Utilize cooling liquid phase change principle to refrigerate, heat retaining process compares in the refrigerated principle of traditional compressor and can make refrigeration, the heat preservation effect improves tens of times, utilizes the mode of liquid contact conduction to replace the air cooling mode simultaneously, can promote refrigerating system's refrigeration efficiency, utilizes liquid contact heat transfer far, the efficiency is higher than the characteristic of air convection heat transfer and carries out quick cold filling to the refrigerator car, improves workplace's operating efficiency, can reduce 30% power consumption under the equal environmental index of test.

The utility model discloses on the other hand utilizes the characteristics of industrial power supply peak valley level, refrigerates so that reduction in production cost at power consumption valley (night), utilizes daytime and evening difference of price of electricity to the utmost, stores cold energy daytime at night and uses, reduces the power consumption cost of enterprise in balanced power system power consumption load, can melt the cold station with the lower coolant liquid of solid-liquid phase transition temperature and freeze when treating refrigeration plant and fill cold simultaneously, fills in a large number and refrigerates fast in treating refrigeration plant.

The utility model discloses only set up refrigerating plant in refrigerating system, realize the concentrated refrigeration at cold station. The utility model not only makes the refrigeration faster, improves the work efficiency, reduces the cold overflow loss in the operation; meanwhile, the investment of refrigeration equipment in the cold station is reduced, the effect of centralized refrigeration is realized, and the capital cost is reduced.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.

Claims

1. A fixed cold station system is characterized by comprising a control system, a refrigerating system, a cold storage and a cold storage which are connected with the control system,

the refrigerating system is used for refrigerating and circulating cold-stored liquid to the cold storage, the cold storage and equipment to be refrigerated;

2. The stationary cold station system of claim 1, wherein the refrigeration system, the cold storage room and the cold storage room are respectively provided with a corresponding temperature sensor and a corresponding liquid level sensor, and the temperature sensor and the liquid level sensor are connected to the control system.

3. The fixed cold station system of claim 1, wherein a cold charging device is disposed between the refrigeration system and the cold storage, between the refrigeration system and the equipment to be refrigerated, and between the cold storage and the equipment to be refrigerated.

4. The stationary cold station system according to claim 3, wherein the cold charging means between the refrigeration system and the cold store, and between the refrigeration system and the equipment to be refrigerated are water pumps; the cold charging device positioned between the refrigerating system and the equipment to be refrigerated and between the cold storage house and the equipment to be refrigerated further comprises an electric control valve body and a quick-change connector;

the water pump, the electric control valve body and the quick-change connector are all connected with the control system.

5. The fixed cold station system of claim 1, wherein a phase change storage area and a refrigeration area are provided in the refrigeration system, wherein a circulating coolant is provided in the phase change storage area, wherein a refrigeration coolant is provided in the refrigeration area, and wherein the circulating coolant realizes circulation among the refrigeration system, the cold storage and the cold storage.

6. The stationary cold station system of claim 5, wherein the circulating cooling liquid has a solid-liquid phase change temperature that is lower than a solid-liquid phase change temperature of the chilled cooling liquid.

7. The stationary cold station system according to claim 5, wherein a thermal insulation cooling liquid is provided in the warm zone, and the circulating cooling liquid delivered by the phase change storage zone is disposed outside the thermal insulation cooling liquid.

8. The stationary cold station system of claim 5, wherein a compressor is provided in the control system, a refrigerant line of the compressor extending into the refrigeration zone and being connected to the evaporator.

9. The stationary cold station system of claim 5, wherein said cold storage reservoir has stored therein a cold storage coolant.

10. The stationary cold station system of claim 9, wherein the cold storage coolant has a solid-liquid phase change temperature that is higher than a solid-liquid phase change temperature of the circulating coolant.