Controllable cold energy release device and cold storage system

Abstract

The application discloses a controllable cold energy releaser and a cold storage system, and belongs to the technical field of cold storage energy saving. The controllable cold energy releaser comprises a refrigeration mechanism, a container, a cold storage medium, air ducts and a cold energy release control mechanism. The container is internally provided with the cold storage medium. The container is open at both ends and is integrally provided with heat preservation blocks at the openings. The air ducts are arrayed in the container. The air ducts are penetrated through the heat preservation blocks on both sides and are connected with the cold energy release control mechanism. The refrigeration mechanism is connected with the container and is used for refrigerating the cold storage medium. The outer wall of the container is provided with a heat preservation material layer. The heat preservation material layer is used for blocking the cold energy exchange between the cold storage medium and the outside. The controllable cold energy releaser can realize the controllable release of the cold energy of the cold storage medium, so that the energy saving and consumption reducing effect is further improved, and the automatic management level is improved.

Description

Technical Field

[0001] This invention belongs to the field of cold storage energy-saving technology, specifically relating to a controllable cold energy release device and a cold storage system. Background Technology

[0002] A cold storage facility is a type of refrigeration equipment. It refers to an artificially created environment with different temperature and humidity than the outside world, used for the constant temperature and humidity storage of food, liquids, chemicals, pharmaceuticals, vaccines, and scientific experimental materials. Cold storage facilities are typically located near ports of transport or the point of origin. Compared to refrigerators, cold storage facilities have a larger refrigeration area and share the same refrigeration principle.

[0003] Cold storage refrigeration systems consume a significant amount of energy. To address this issue, cold storage technology has been introduced. During off-peak hours at night when electricity demand is low, refrigeration is carried out using the sensible or latent heat of the storage medium to store the cold energy. During the daytime when electricity demand is high, the stored cold energy is released to meet the needs of production processes. While this type of cold storage technology can save energy to some extent, the release of cold energy from the storage medium cannot be precisely controlled, leading to an unreasonable allocation of cold energy and hindering further energy conservation and consumption reduction. Summary of the Invention

[0004] To address the problems of existing technologies, this invention discloses a controllable cold energy release device and a cold storage system. By controlling the release of cold energy, the rational utilization of cold energy can be achieved, thereby achieving further energy-saving and consumption-reducing effects on the one hand, and improving the level of automated management of cold storage on the other.

[0005] To achieve the above objectives, the technical solution of this invention is as follows:

[0006] A controllable cold energy release device includes a refrigeration mechanism, a container, a cold storage medium, air ducts, and a cold energy release control mechanism. The container contains a cold storage medium and has openings at both ends with integrally formed insulation blocks at the openings. A plurality of air ducts are arranged in an array inside the container, with both ends of the air ducts passing through the insulation blocks on both sides and connected to the cold energy release control mechanism. The refrigeration mechanism is connected to the container and used to refrigerate the cold storage medium. The outer wall of the container is provided with an insulation material layer, which is used to block the exchange of cold energy between the cold storage medium and the outside environment.

[0007] Preferably, the container is a cubic shell with a coiled heat exchange tube on the inner wall of the container. The two ends of the heat exchange tube extend out of the outer wall of the container and are connected to the refrigeration mechanism. The heat exchange tube contains refrigerant, and the two free ends of the heat exchange tube are connected to form a complete circuit. A circulation pump is installed on the heat exchange tube.

[0008] Preferably, the refrigeration mechanism includes a Teslin refrigerator, an insulation jacket, and a heat-conducting plate. The heat-conducting plate is installed inside the insulation jacket. The cold end of the Teslin refrigerator is inserted into the insulation jacket and fixedly connected to the heat-conducting plate. The two free ends of the heat exchange tube are inserted into the insulation jacket and tightly fitted to the heat-conducting plate. The tube wall of the heat exchange tube located outside the insulation jacket and container is also made of insulation material. Insulation cotton is filled between the heat-conducting plate and the outer shell of the insulation jacket.

[0009] Preferably, the air ducts are arranged in a matrix, with one end of the air duct extending to the end of the insulation block on the same side and having several air outlets evenly arranged on the duct wall, and the other end of the air duct extending to the end of the insulation block on the other side and having an air outlet of a fan fixedly connected to it.

[0010] Preferably, the cold energy release control mechanism includes a controller, a temperature sensor, and an electric cylinder. One end of the air duct with several air outlets extends outward to form an installation cylinder. An electric cylinder is fixedly installed inside the installation cylinder, and the cylinder barrel of the electric cylinder is sealed and fixedly connected to the inner wall of the installation cylinder. A heat-insulating piston is fixedly connected to the end of the piston rod of the electric cylinder. The heat-insulating piston is damped and slidably connected to the inner wall of the air duct and is used to close several air outlets. When the air outlets are closed, the heat-insulating piston is partially inserted into the heat-insulating material layer of the container. A solenoid valve is installed at the other end of the air duct. The solenoid valve is located inside the heat-insulating block. The temperature sensor is installed in the environment to be cooled. The temperature sensor is connected to the controller via a wire. The controller is configured to control each electric cylinder, each fan, and each solenoid valve.

[0011] A cold storage system includes a cold storage room equipped with several controllable cold energy release devices. The containers of the controllable cold energy release devices are fixedly installed on the inner wall of the cold storage room, with one end equipped with a fan facing upwards and the other end equipped with an electric cylinder facing downwards. A Teslin refrigeration unit and an insulation jacket are respectively fixedly installed at the top of the cold storage room. A heat exchange pipe penetrates the top wall of the cold storage room and is connected to a heat conduction plate. The temperature sensor is installed inside the cold storage room.

[0012] Preferably, the temperature sensors are installed on the four inner walls of the cold storage and in the middle of the bottom plate of the cold storage.

[0013] A refrigeration method for a cold storage system includes: During off-peak electricity hours at night, the refrigeration unit refrigerates the cold storage medium of each controllable cold energy release device; during the day, based on the values ​​detected by temperature sensors and a pre-set standard temperature value inside the cold storage, the operation of each fan and each electric cylinder is controlled. During refrigeration, a solenoid valve is opened, the fan connected to the air duct is started, and the piston rod of the electric cylinder is retracted to a set distance, exposing a certain number of air outlets. Through airflow circulation, the air inside the cold storage exchanges cold energy with the cold storage medium through the air duct. This process is repeated, opening the air outlets of several air ducts to refrigerate the cold storage. When the temperature inside the cold storage is lower than the set value, the piston rod of the electric cylinder is extended to a certain distance, reducing the exposed air outlets and fine-tuning the airflow, or some air outlets on the air ducts and fans are completely closed to reduce the cold energy exchange between the air inside the cold storage and the cold storage medium. Conversely, if the temperature inside the cold storage is higher than the set value, more air outlets of the air ducts need to be opened, and the number of air outlets is adjusted under the control of the electric cylinder. In this way, precise control of the release of cold energy from the cold storage medium is achieved.

[0014] The beneficial effects of the controllable cold energy release device and cold storage system of the present invention are as follows:

[0015] This invention enables the controllable release of cold energy from the cold storage medium, thereby making more rational use of the cold energy of the cold storage medium, further reducing the energy consumption of the cold storage system, and improving the level of automated management of the cold storage system's refrigeration.

[0016] Instruction manual illustrations

[0017] Figure 1 A side view of the controllable cold energy release device of the present invention.

[0018] Figure 2 A top view of the controllable cold energy release device of the present invention (the outer heat exchange tubes and refrigeration mechanism are omitted).

[0019] Figure 3 A schematic cross-sectional view of the controllable cold energy release device of the present invention along the AA direction.

[0020] Figure 4 A partial schematic diagram of the controllable cold energy release device of the present invention arranged in a cold storage.

[0021] In the diagram: 1. Container; 2. Insulation block; 3. Heat exchange tube; 4. Insulation jacket; 5. Teslin refrigeration unit; 6. Electric cylinder; 7. Insulation structure of the outer wall of the air duct; 8. Fan; 9. Air outlet section; 10. Air outlet; 11. Insulation piston; 12. Cold storage medium; 13. Air duct; 14. Heat conduction plate; 15. Insulation cotton; 16. Cold end; 17. Side wall of the cold storage; 18. Top wall of the cold storage. Detailed Implementation

[0022] The following description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0023] The following embodiments can be understood as illustrating a part of the structure or method of the present invention individually, or as combining the embodiments to explain the broader structure or method of the present invention.

[0024] Example 1

[0025] A controllable cold energy release device, such as Figure 1-4 As shown, the system includes a refrigeration mechanism, a container 1, a cold storage medium 12, air ducts 13, and a cold energy release control mechanism. The container 1 contains the cold storage medium 12. Both ends of the container 1 are open, and insulation blocks 2 are integrally formed at the openings. A plurality of air ducts 13 are arranged in an array inside the container 1. The two ends of the air ducts 13 pass through the insulation blocks 2 on both sides and are connected to the cold energy release control mechanism. The refrigeration mechanism is connected to the container 1 and used to cool the cold storage medium 12. The outer wall of the container 1 is provided with an insulation material layer (such as...). Figure 3 As shown in the figure (not marked), the insulation material layer is used to block the exchange of cold energy between the cold storage medium and the outside world.

[0026] In this embodiment, water is selected as the cold storage medium. The refrigeration unit cools the water into ice blocks during off-peak electricity hours at night. During the day, under the control of the cold energy release control mechanism, the cold energy of the ice blocks is released in a controlled manner, achieving reasonable distribution and effective control of cold energy while meeting the cooling needs of the cold storage. The insulation material layer is used to block the exchange of cold energy between the cold storage medium and the outside environment, and the insulation blocks cover the air ducts, both to prevent uncontrolled cold energy exchange between the cold storage medium and the outside environment.

[0027] Example 2

[0028] like Figure 1-4 As shown, the container 1 is a cubic shell with a heat exchange tube 3 coiled on the inner wall of the container 1. The two ends of the heat exchange tube 3 extend out of the outer wall of the container 1 and are connected to the refrigeration mechanism. The heat exchange tube 3 contains refrigerant, and the two free ends of the heat exchange tube 3 are connected to form a complete circuit. A circulation pump (not shown in the figure, but a common structure) is installed on the heat exchange tube 3.

[0029] In this embodiment, the heat exchange tube acquires cold energy through energy exchange with the refrigeration mechanism, and then the cold energy is exchanged with the cold storage medium 12 to store cold energy. The circulation pump promotes the circulation of the refrigerant. The refrigerant can be R14, or other commercially available products can be selected as needed.

[0030] Example 3

[0031] like Figure 1-4 As shown, the refrigeration mechanism includes a Teslin refrigerator 5, an insulation sleeve 4, and a heat-conducting plate 14. The heat-conducting plate 14 is installed inside the insulation sleeve 4. The cold end 16 of the Teslin refrigerator 5 is inserted into the insulation sleeve 4 and fixedly connected to the heat-conducting plate 14. The two free ends of the heat exchange tube 3 are inserted into the insulation sleeve 4 and tightly fitted to the heat-conducting plate 14. The tube wall of the heat exchange tube 3 located outside the insulation sleeve 4 and the container 1 is also made of insulation material. The space between the heat-conducting plate 14 and the outer shell of the insulation sleeve 4 is filled with insulation cotton 15.

[0032] Example 4

[0033] like Figure 1-4 As shown, the air ducts 13 are arranged in a matrix. One end of the air duct 13 extends to the end of the insulation block 2 on the same side and several air outlets 10 are evenly arranged on the pipe wall. The other end of the air duct 13 extends to the end of the insulation block 2 on the other side and is fixedly connected to the air outlet of the fan 8.

[0034] Example 5

[0035] like Figure 1-4 As shown, the cold energy release control mechanism includes a controller (not shown in the figure), a temperature sensor (not shown in the figure), and an electric cylinder 6. The air duct 13 has several air outlets 10, one end of which extends outward to form an installation cylinder. The electric cylinder 6 is fixedly installed inside the installation cylinder. The cylinder barrel of the electric cylinder 6 is sealed and fixedly connected to the inner wall of the installation cylinder. The piston rod end of the electric cylinder 6 is fixedly connected to a heat-insulating piston 11. The heat-insulating piston 11 is damped and slidably connected to the inner wall of the air duct 13 (i.e., it can maintain a seal while allowing relative movement) and is used to close several air outlets 10. When the air outlets 10 are closed, the heat-insulating piston 11 is partially inserted into the heat-insulating material layer of the container 1. The other end of the air duct is equipped with a solenoid valve, which is located inside the heat-insulating block. The temperature sensor is installed in the environment to be cooled. The temperature sensor is connected to the controller via a wire. The controller is configured to control each electric cylinder 6, each fan 8, and each solenoid valve.

[0036] Example 6

[0037] A cold storage system, such as Figure 1-4 As shown, the device includes a cold storage unit equipped with several controllable cold energy release devices. The container 1 of the controllable cold energy release device is fixedly installed on the inner wall of the cold storage unit. One end of the device with a fan 8 faces upwards, and the other end with an electric cylinder 6 faces downwards. A Teslin refrigeration unit 5 and an insulation sleeve 4 are fixedly installed at the top of the cold storage unit. A heat exchange pipe 3 penetrates the top wall 18 of the cold storage unit and is connected to a heat conduction plate. The temperature sensor is installed inside the cold storage unit.

[0038] In a preferred embodiment, the temperature sensors are respectively installed on the four inner walls of the cold storage and in the middle of the bottom plate of the cold storage.

[0039] In this embodiment, the refrigeration method of the cold storage system is as follows: the refrigeration unit refrigerates the cold storage medium of each controllable cold energy release device during the off-peak electricity hours at night. During the day, the operation of each fan and each electric cylinder is controlled according to the value detected by the temperature sensor and the preset standard temperature value in the cold storage. During refrigeration, the solenoid valve is opened, the fan connected to the air duct is started, and the piston rod of the electric cylinder is retracted to the set range, exposing a certain number of air outlets. Through airflow circulation, the air in the cold storage exchanges cold energy with the cold storage medium through the air duct. Similarly, the cold storage is refrigerated by opening the air outlets of several air ducts. When the temperature in the cold storage is lower than the set value, the piston rod of the electric cylinder is extended to a certain extent, reducing the exposed air outlets and fine-tuning the air volume. Alternatively, some air outlets on the air ducts and fans can be completely closed to reduce the cold energy exchange between the air in the cold storage and the cold storage medium. Conversely, if the temperature in the cold storage is higher than the set value, more air outlets of the air ducts need to be opened, and the number of air outlets is adjusted under the control of the electric cylinder. In this way, precise control of the release of cold energy from the cold storage medium is achieved.

[0040] During this process, the fan draws air from the top of the cold storage and directs it into the air duct. The cold air is then ejected from the lower part of the side wall of the cold storage through the air outlet, forming an airflow circulation that helps to even out the temperature distribution within the cold storage. Temperature sensors are installed on the four inner walls and the middle of the floor of the cold storage to facilitate overall temperature monitoring. The average value of the data measured by these temperature sensors can be used to determine the temperature inside the cold storage.

Claims

1. A controllable cold energy release device, characterized in that: it includes a refrigeration mechanism, a container, a cold storage medium, air ducts, and a cold energy release control mechanism; the container contains a cold storage medium; the container has openings at both ends and an integrally formed heat insulation block at the opening; a plurality of air ducts are arranged in an array inside the container; the two ends of the air ducts pass through the heat insulation blocks on both sides and are connected to the cold energy release control mechanism; the refrigeration mechanism is connected to the container and used to refrigerate the cold storage medium; the outer wall of the container is provided with a heat insulation material layer, which is used to block the exchange of cold energy between the cold storage medium and the outside; The air ducts are arranged in a matrix. One end of the air duct extends to the end of the insulation block on the same side and several air outlets are evenly arranged on the duct wall. The other end of the air duct extends to the end of the insulation block on the other side and is fixedly connected to the air outlet of the fan. The cold energy release control mechanism includes a controller, a temperature sensor, and an electric cylinder. One end of the air duct, which has several air outlets, extends outward to form an installation cylinder. An electric cylinder is fixedly installed inside the installation cylinder, with its cylinder barrel sealed and fixedly connected to the inner wall of the installation cylinder. A heat-insulating piston is fixedly connected to the end of the piston rod of the electric cylinder. The heat-insulating piston is damped and slidably connected to the inner wall of the air duct to seal the air outlets. With the air outlets closed, the heat-insulating piston is partially inserted into the insulation material layer of the container. A solenoid valve is installed at the other end of the air duct, located inside the insulation block. The temperature sensor is installed in the environment to be cooled and is connected to the controller via a wire. The controller is configured to control each electric cylinder, each fan, and each solenoid valve.

2. A controllable cold energy release device as claimed in claim 1, characterized in that The container is a cubic shell with a heat exchange tube coiled on the inner wall. The two ends of the heat exchange tube extend out of the outer wall of the container and are connected to the refrigeration mechanism. The heat exchange tube contains refrigerant, and the two free ends of the heat exchange tube are connected to form a complete circuit. A circulation pump is installed on the heat exchange tube.

3. A controllable cold energy release device as claimed in claim 2, characterized in that: The refrigeration mechanism includes a Teslin refrigerator, an insulation jacket, and a heat-conducting plate. The heat-conducting plate is installed inside the insulation jacket. The cold end of the Teslin refrigerator is inserted into the insulation jacket and fixedly connected to the heat-conducting plate. The two free ends of the heat exchange tube are inserted into the insulation jacket and tightly fitted to the heat-conducting plate. The tube wall of the heat exchange tube located outside the insulation jacket and container is also made of insulation material. Insulation cotton is filled between the heat-conducting plate and the outer shell of the insulation jacket.

4. A cold store system, characterised in that The device includes a cold storage unit equipped with several controllable cold energy release devices as described in claim 3. The containers of the controllable cold energy release devices are fixedly installed on the inner wall of the cold storage unit, with one end equipped with a fan facing upwards and the other end equipped with an electric cylinder facing downwards. A Teslin refrigeration unit and an insulation jacket are respectively fixedly installed at the top of the cold storage unit. A heat exchange pipe penetrates the top wall of the cold storage unit and is connected to a heat conduction plate. The temperature sensor is installed inside the cold storage unit.

5. A cold storage system as described in claim 4, characterized in that: The temperature sensors are installed on the four inner walls of the cold storage and in the middle of the bottom plate of the cold storage.

6. The refrigeration method for a cold storage system as described in claim 5, characterized in that, include: The refrigeration system cools the cold storage medium in each controllable cold energy release unit during off-peak electricity hours at night. During the day, based on the values ​​detected by temperature sensors and the pre-set standard temperature value inside the cold storage, the operation of each fan and electric cylinder is controlled. During refrigeration, the solenoid valve is opened, the fan connected to the air duct is started, and the piston rod of the electric cylinder is retracted to the set position, exposing a certain amount of air outlets. Through airflow circulation, the air inside the cold storage exchanges cold energy with the cold storage medium through the air duct. This process is repeated by opening... The air outlets of the dry ducts refrigerate the cold storage. When the temperature inside the cold storage is lower than the set value, the piston rod of the electric cylinder extends to a certain extent, reducing the exposed air outlets and fine-tuning the airflow. Alternatively, some air outlets on the ducts and the fans can be completely closed to reduce the exchange of cold energy between the air and the cold storage medium inside the cold storage. Conversely, if the temperature inside the cold storage is higher than the set value, more air outlets of the ducts need to be opened, and the number of air outlets is adjusted under the control of the electric cylinder. In this way, precise control of the release of cold energy from the cold storage medium can be achieved.

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