Ice slurry cold storage system for refrigeration house

Abstract

An ice slurry cold storage system for a refrigeration house belongs to the technical field of cold storage and energy conservation of the refrigeration house and comprises an ice slurry tank, a heat exchange pipe, a ventilation pipe, a refrigerating machine and a circulating pump, the ice slurry tank is mounted at the top of the refrigeration house, two ends of the ice slurry tank are respectively connected with a slurry outlet pipe and a slurry inlet pipe, and the heat exchange pipe is positioned in the refrigeration house. The two ends of the heat exchange pipe penetrate through the top wall of the refrigeration house and are connected with the slurry outlet pipe and the slurry inlet pipe respectively, a ventilation pipe is coaxially arranged in a pipe body, located in the refrigeration house, of the heat exchange pipe, the two ends of the ventilation pipe are connected with an air inlet pipe and an air outlet pipe which are arranged on the pipe wall of the heat exchange pipe respectively, and the refrigerating machine is arranged at the top of the ice slurry tank. The cold end of the refrigerating machine extends into the ice slurry tank, a circulating pump is installed on the heat exchange pipe, and a fan used for blowing air in the refrigeration house into the ventilation pipe is installed at one end of the air inlet pipe. Rapid cooling in the refrigeration house can be achieved, temperature uniformity in the refrigeration house is promoted, energy consumption is reduced, and the operation cost of the refrigeration house is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of cold storage cold storage and energy saving, and specifically relates to an ice slurry cold storage system for cold storage. Background Art

[0002] A cold storage facility is a type of refrigeration equipment. It uses artificial means to create an environment with a different temperature or humidity than the outside. It is used to maintain a constant temperature and humidity for food, liquids, chemicals, pharmaceuticals, vaccines, scientific experiments, and other items. Cold storage facilities are typically located near shipping ports or places of origin. Compared to refrigerators, cold storage facilities have a larger cooling area and share the same refrigeration principles.

[0003] For cold storage facilities of a certain size, the refrigeration system consumes a significant amount of energy. To address this energy consumption issue, cold storage technology has been introduced. During the nighttime peak hours when electricity load is low, refrigeration is used to store cold energy using the sensible or latent heat properties of the cold storage medium. This stored cold energy is then released during the daytime, when electricity load is higher, to meet the needs of production processes. Document CN117824255A discloses a mobile cold storage and cooling intelligent vehicle and cold storage system based on this technology. The vehicle comprises a transport vehicle and a cooling mechanism. The transport vehicle comprises a vehicle body and an ice slurry tank. The ice slurry tank is mounted on the vehicle body and is provided with an outlet and a return port connected to its inner cavity. The cooling mechanism comprises a housing, a heat exchange pipe, a fan, and an ice slurry pump. The housing is mounted on the vehicle body and has a heat exchange cavity with an air inlet and an air outlet connected to the heat exchange cavity. The heat exchange pipe has two ends connected to the outlet and the return port, and is at least partially located within the heat exchange cavity. The fan is mounted on the housing and corresponds to the heat exchange cavity, and is used to blow air from the air inlet to the air outlet. The ice slurry pump is installed on the heat exchange pipe to circulate the ice slurry in the ice slurry tank within the heat exchange pipe. This solution can reduce the temperature of the cold storage while reducing daytime electricity consumption and lowering the power load during peak summer periods. The transport vehicle can be moved around the cold storage, providing good flexibility. However, this invention has the following problems:

[0004] 1. It requires additional equipment such as a vehicle body. Although it is flexible to move, it takes up a lot of space.

[0005] 2. During cooling, cold air is blown into the cold storage through a fan to achieve heat exchange. This method has low cooling efficiency and uneven cooling effect. Utility Model Content

[0006] In response to the problems of the prior art, the present invention discloses an ice slurry cold storage system for cold storage, the purpose of which is to solve the problems described in the background technology parts (1) and (2).

[0007] To achieve the above purpose, the new technical solution is:

[0008] An ice slurry cold storage system for a cold storage comprises an ice slurry tank, a heat exchange pipe, a ventilation pipe, a refrigerator, and a circulation pump. The ice slurry tank is installed on the top of the cold storage, and the two ends of the ice slurry tank are respectively connected to a slurry outlet pipe and a slurry inlet pipe. The heat exchange pipe is located in the cold storage, and the two ends of the heat exchange pipe respectively pass through the top wall of the cold storage and are connected to the slurry outlet pipe and the slurry inlet pipe. The heat exchange pipe is located in the cold storage and is coaxially provided with a ventilation pipe inside the pipe body. The two ends of the ventilation pipe are respectively connected to an air inlet pipe and an air outlet pipe provided on the wall of the heat exchange pipe. The refrigerator is located on the top of the ice slurry tank, and the cold end of the refrigerator extends into the interior of the ice slurry tank. A circulation pump is installed on the heat exchange pipe, and a fan for blowing air in the cold storage into the ventilation pipe is installed at one end of the air inlet pipe.

[0009] Preferably, the ice slurry tank is provided with a top cover, and the refrigerator is a Textilen refrigerator. The cold end of the Textilen refrigerator passes through the top cover and extends into the ice slurry tank. The outer surface of the cold end located inside the ice slurry tank is provided with multiple heat sinks.

[0010] Preferably, the Teslin refrigerator is connected to a battery via a wire, the battery is provided with a solar panel for charging the battery, and the solar panel is mounted above the top of the cold storage via a bracket.

[0011] Preferably, the inner port of the slurry outlet pipe is provided with a metal filter screen, and the lower part of the ice slurry tank is provided with a stirring mechanism.

[0012] Preferably, a temperature sensor is provided on the inner wall of the ice slurry tank on one side of the inner port of the slurry outlet pipe, and a controller is provided outside the ice slurry tank. The temperature sensor is connected to the controller signal through a wire, and the controller is electrically connected to the refrigerator, fan, circulation pump, and stirring mechanism through wires.

[0013] Preferably, the stirring mechanism includes a stirring motor arranged at the bottom of the ice slurry tank, the output shaft of the stirring motor extends into the interior of the ice slurry tank through a sealed bearing embedded in the bottom of the ice slurry tank, and a number of stirring blades are evenly distributed on the shaft wall of the output shaft located inside the ice slurry tank. The top end of the output shaft is rotatably connected to a cross beam, and the two ends of the cross beam are respectively fixedly connected to the inner wall of the ice slurry tank.

[0014] Preferably, the outer wall of the ventilation pipe is fixedly connected to the inner wall of the heat exchange pipe through evenly distributed and staggered heat transfer metal plates, and the ventilation pipe is made of heat-conducting metal material.

[0015] Preferably, the heat exchange tube is installed on the inner wall of the cold storage in a coiled posture through a connector.

[0016] The beneficial effects of this new ice slurry cold storage system for cold storage are:

[0017] This new model does not require a mobile vehicle body. The heat exchange tubes are coiled and installed on the inner wall of the cold storage, which does not take up additional space in the cold storage. During cooling, ice slurry flows in the heat exchange tubes, and the ventilation pipe circulates air into the cold storage, which can achieve rapid cooling in the cold storage and promote uniform temperature in the cold storage. Through the above arrangement, the refrigeration efficiency can be significantly improved, energy consumption can be saved, and the operating cost of the cold storage can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the new model.

[0019] 1. Ice slurry tank; 2. Refrigerator; 3. Cold end; 4. Heat sink; 5. Water inlet pipe; 6. Support foot; 7. Stirring motor; 8. Crossbeam; 9. Output shaft; 10. Stirring blade; 11. Metal filter; 12. Temperature sensor; 13. Slurry inlet pipe; 14. Heat exchange pipe; 15. Ventilation pipe; 16. Air outlet pipe; 17. Air inlet pipe; 18. Fan; 19. Heat transfer metal plate; 20. Circulation pump. DETAILED DESCRIPTION

[0020] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0021] The following embodiments can be understood as detailed explanations of the local structure or related working principles of the present invention, and can also be understood as explanations of the larger structure or working principles of the present invention through mutual combination of the embodiments.

[0022] In this embodiment, an ice slurry cold storage system for cold storage is provided. Figure 1 As shown, it includes an ice slurry tank 1, a heat exchange pipe 14, a ventilation pipe 15, a refrigerator 2, and a circulation pump 20. The ice slurry tank 1 is installed on the top of a cold storage (not shown in the figure), and the two ends of the ice slurry tank 1 are respectively connected to slurry outlet pipes (such as Figure 1 As shown in the figure (not marked) and the slurry inlet pipe 13, the heat exchange pipe 14 is located in the cold storage, and the two ends of the heat exchange pipe 14 respectively pass through the top wall of the cold storage and are connected to the slurry outlet pipe and the slurry inlet pipe 13. The heat exchange pipe 14 is located in the cold storage and a ventilation pipe 15 is coaxially arranged inside the pipe body. The two ends of the ventilation pipe 15 are respectively connected to the air inlet pipe 17 and the air outlet pipe 16 arranged on the wall of the heat exchange pipe. The refrigerator 2 is arranged on the top of the ice slurry tank 1, and the cold end of the refrigerator 2 extends into the interior of the ice slurry tank 1. A circulating pump 20 is installed on the heat exchange pipe 14, and a fan 18 is installed at one end of the air inlet pipe 17 to blow the air in the cold storage into the ventilation pipe 15.

[0023] In this embodiment, Figure 1As shown, the ice slurry tank 1 is provided with a top cover, and the refrigerator 2 is a Textilen refrigerator. The cold end 3 of the Textilen refrigerator passes through the top cover and extends into the ice slurry tank 1. The outer surface of the cold end 3 located inside the ice slurry tank is distributed with multiple heat sinks 4, which promote heat exchange between water and the cold end through the heat sinks.

[0024] In this embodiment, Figure 1 As shown, the Teslin refrigerator is connected to a battery (not shown) via a wire. The battery is equipped with a solar panel (not shown) for charging the battery. The solar panel is installed above the top of the cold storage via a bracket (not shown).

[0025] In this embodiment, Figure 1 As shown, the inner port of the slurry outlet pipe is provided with a metal filter screen 11, and the lower part of the ice slurry tank 1 is provided with a stirring mechanism.

[0026] In this embodiment, Figure 1 As shown, a temperature sensor 12 is provided on the inner wall of the ice slurry tank 1 on one side of the inner port of the slurry outlet pipe, and a controller (not shown in the figure) is provided outside the ice slurry tank 1. The temperature sensor 12 is connected to the controller signal through a wire, and the controller is electrically connected to the refrigerator 2, the fan 18, the circulation pump 20, and the stirring mechanism through wires.

[0027] In this embodiment, Figure 1 As shown, the stirring mechanism includes a stirring motor 7 arranged at the bottom of the ice slurry tank 1, and the output shaft 9 of the stirring motor 7 extends into the interior of the ice slurry tank 1 through a sealed bearing embedded in the bottom of the ice slurry tank. A number of stirring blades 10 are evenly distributed on the shaft wall of the output shaft 10 located inside the ice slurry tank 1. The top end of the output shaft 9 is rotatably connected to a crossbeam 8, and the two ends of the crossbeam 8 are respectively fixedly connected to the inner wall of the ice slurry tank 1.

[0028] In this embodiment, Figure 1 As shown, the outer wall of the ventilation pipe 15 is fixedly connected to the inner wall of the heat exchange pipe 14 through evenly distributed and staggered heat transfer metal plates 19, and the ventilation pipe 15 is made of heat-conducting metal material.

[0029] In this embodiment, Figure 1 As shown, the heat exchange tube 14 is installed on the inner wall of the cold storage in a coiled posture through a connecting piece.

[0030] The working principle of this new model:

[0031] The refrigerator is powered by solar energy and mains electricity during nighttime hours, when electricity consumption is low. During operation, a temperature sensor detects the temperature of the water in the ice slurry tank. When the temperature approaches 0°C (in actual use, it is kept slightly above 0°C, such as 0.2°C, to prevent freezing), the circulation pump is activated, and the water in the ice slurry tank becomes an ice slurry. Under the action of the circulation pump, the ice slurry circulates through the heat exchange tubes. When the temperature falls below the set temperature (for example, 0.2°C), the refrigerator stops. When the temperature rises above the set temperature, the refrigerator starts again. Through the circulation of the ice slurry in the heat exchange tubes, heat is exchanged with the air in the cold storage, bringing the temperature within the cold storage to a range close to 0°C. Meanwhile, during operation, the fan 18 is activated, and air in the cold storage enters the ventilation duct. The ventilation duct and heat transfer metal plate 19 quickly absorb the cold energy in the heat exchange tubes, achieving rapid heat exchange with the air in the cold storage and promoting a uniform temperature within the cold storage. Because the cold energy is conducted outward from both the inside and outside of the heat exchange tubes, the temperature of the ice slurry in the heat exchange tubes rises, preventing it from freezing. It then re-enters the ice slurry tank and cools down again. Among them, the function of the stirring mechanism is to promote the flow of water in the ice slurry tank to prevent freezing.

[0032] When the battery is about to run out of power or the utility power is about to pass, the chiller can be started to gradually freeze the water in the heat exchange tube into ice cubes. Then the chiller can be turned off, and the ice cubes will serve as cold storage to continue cooling the cold storage. With continuous circulation in the ventilation pipes, the ice cubes in the heat exchange tubes will gradually melt into liquid. When the battery has power again or the electricity consumption reaches the nighttime low point, the circulation pump and chiller can be restarted.

Claims

1. An ice slurry cold storage system for a cold storage, characterized in that it comprises an ice slurry tank, a heat exchange pipe, a ventilation pipe, a refrigerator, and a circulation pump, the ice slurry tank being installed on the top of the cold storage, and the two ends of the ice slurry tank being respectively connected with a slurry outlet pipe and a slurry inlet pipe, the heat exchange pipe being located in the cold storage, and the two ends of the heat exchange pipe respectively pass through the top wall of the cold storage and are connected with the slurry outlet pipe and the slurry inlet pipe, the heat exchange pipe being located in the cold storage and being coaxially provided with a ventilation pipe inside the pipe body, and the two ends of the ventilation pipe being respectively connected with an air inlet pipe and an air outlet pipe provided on the pipe wall of the heat exchange pipe, the refrigerator being located on the top of the ice slurry tank, and the cold end of the refrigerator extending into the interior of the ice slurry tank, a circulation pump being installed on the heat exchange pipe, and a fan for blowing air in the cold storage into the ventilation pipe being installed at one end of the air inlet pipe.

2. The ice slurry cold storage system for cold storage according to claim 1, characterized in that: The ice slurry tank is provided with a top cover, and the refrigerator is a Textilen refrigerator. The cold end of the Textilen refrigerator passes through the top cover and extends into the ice slurry tank. The outer surface of the cold end is located inside the ice slurry tank and is distributed with multiple heat sinks.

3. The ice slurry cold storage system for cold storage according to claim 2, characterized in that: The Teslin refrigerator is connected to a battery via a wire. The battery is provided with a solar panel for charging the battery. The solar panel is installed above the top of the cold storage via a bracket.

4. The ice slurry cold storage system for cold storage according to claim 3, characterized in that: The inner port of the slurry outlet pipe is provided with a metal filter screen, and the lower part of the ice slurry tank is provided with a stirring mechanism.

5. An ice slurry cold storage system for a cold storage as described in claim 4, characterized in that: a temperature sensor is provided on the inner wall of the ice slurry tank on one side of the inner port of the slurry outlet pipe, and further includes a controller arranged outside the ice slurry tank, the temperature sensor is connected to the controller signal through a wire, and the controller is electrically connected to the refrigerator, fan, circulation pump, and stirring mechanism through wires.

6. An ice slurry cold storage system for a cold storage as described in claim 5, characterized in that: the stirring mechanism includes a stirring motor arranged at the bottom of the ice slurry tank, the output shaft of the stirring motor extends into the interior of the ice slurry tank through a sealed bearing embedded in the bottom of the ice slurry tank, and a plurality of stirring blades are evenly distributed on the shaft wall of the output shaft located inside the ice slurry tank, the top end of the output shaft is rotatably connected to a crossbeam, and the two ends of the crossbeam are respectively fixedly connected to the inner wall of the ice slurry tank.

7. The ice slurry cold storage system for cold storage according to claim 6, characterized in that: The outer wall of the ventilation pipe is fixedly connected to the inner wall of the heat exchange pipe through evenly distributed and staggered heat transfer metal plates, and the ventilation pipe is made of heat-conducting metal material.

8. The ice slurry cold storage system for cold storage according to claim 7, characterized in that: The heat exchange tube is installed on the inner wall of the cold storage in a coiled posture through a connecting piece.

Images