Refrigeration house for storing camellia oleifera seeds

Abstract

The utility model discloses a refrigeration house for storing camellia seeds, which belongs to the technical field of refrigeration houses and comprises a refrigeration house body, a water medium refrigeration mechanism, a water storage tank and a cooling cover. The water medium refrigeration mechanism comprises a refrigeration structure, a circulating water pump and a cold water cavity, the cold water cavity is provided with a water inlet pipe extending to the water storage tank, the output end of the circulating water pump is provided with a refrigeration pipe extending from one end of the refrigeration house body to the other end of the refrigeration house body, and the extending tail end of the refrigeration pipe is provided with a backflow water pipe extending to the top of the cooling cover; an exhaust fan is arranged on one side of the top of the refrigerating chamber, an air outlet pipe extending to one side of the cooling cover is arranged at the output end of the exhaust fan, and a cold air return pipe communicating with the air outlet pipe and extending to one side of the refrigeration house body is arranged on the other side of the cooling cover; the refrigeration efficiency of the refrigeration house can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold storages, in particular to a cold storage for storing camellia seeds. Background Art

[0002] A cold storage is a refrigeration device that uses artificial means to create an environment with different temperature or humidity from the outside, and stores products that need to be refrigerated or frozen. At present, cold storages have defects such as high energy consumption and environmental impact after refrigerant leakage. Therefore, water-cooled cold storages based on water medium refrigeration technology gradually appear. Water-cooled cold storages use water as a heat transfer medium. Due to the large specific heat capacity of water, they can provide a more stable refrigeration effect and reduce energy consumption. However, the freezing point of water is 0°C, and water needs to maintain a temperature above 0°C in the refrigeration pipe to maintain fluidity, resulting in lower refrigeration efficiency when the refrigeration temperature of the water-cooled cold storage is closer to 0°C. At present, water-cooled cold storages usually add electrolytes to water to make an aqueous solution refrigerant with a freezing point below 0°C. However, the aqueous solution refrigerant is easy to corrode the internal pipelines of the cold storage, increasing the later maintenance cost of the cold storage and reducing the service life of the cold storage. Therefore, water-cooled cold storages still have obvious defects.

[0003] Chinese Patent No. CN220689495U discloses a water-cooled cold storage for silkworm eggs, including a cold storage room and an evaporator. The evaporator is arranged in the cold storage room and is inclined, and its liquid inlet is higher than the liquid outlet. There is a refrigerant pool outside the cold storage room. The liquid outlet of the refrigerant pool is connected and communicated with the liquid inlet of the evaporator through a liquid inlet pipe, and the return port is connected and communicated with the liquid outlet of the evaporator through a return pipe. Among them, a water pump and a flow regulating valve are arranged on the liquid inlet pipe in sequence along the liquid flow direction. The refrigerant in the refrigerant pool is selected from one of brine, ethylene glycol aqueous solution, and propylene glycol aqueous solution. The above cold storage belongs to a water-cooled cold storage. In order to make the internal temperature reach about 3.5°C, this cold storage uses brine with a freezing point below -7°C as the refrigerant. However, the electrolytes in the brine will accelerate the corrosion of the pipelines in the cold storage, resulting in easy refrigerant leakage and other phenomena. The cost of maintenance work such as replacing pipelines after refrigerant leakage is relatively high. Therefore, this cold storage still has room for improvement. Summary of the Utility Model

[0004] In view of the technical defects in the background art, the utility model provides a cold storage for storing camellia seeds, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0005] A cold storage for storing camellia seeds includes a cold storage body, a water medium refrigeration mechanism, a water storage tank, and a cooling cover. The inside of the cold storage body is hollow to form a cold storage room. The water medium refrigeration mechanism is arranged on one side of the cold storage body. The water storage tank is located on the outer side of the cold storage body. The inside of the cooling cover is hollow and sleeved on the top of the water storage tank.

[0006] The water medium refrigeration mechanism includes a refrigeration structure and a circulating water pump. A cold water chamber is jointly provided at the refrigeration end of the refrigeration structure and the input end of the circulating water pump. The cold water chamber is provided with a water inlet pipe extending to the water storage tank. The output end of the circulating water pump is provided with a refrigeration pipe extending from one end to the other end of the cold storage body. The end of the extended refrigeration pipe is provided with a return water pipe extending to the top of the cooling cover.

[0007] A suction fan is provided on one side of the top of the refrigerated chamber. The output end of the suction fan is provided with an air outlet pipe extending to one side of the cooling cover. The other side of the cooling cover is provided with a cold air return pipe communicated with the air outlet pipe and extending to one side of the cold storage body. The end of the cold air return pipe is provided with a cold air outlet located in the refrigerated chamber.

[0008] As a further technical solution of the present invention, the bottom of the cold storage body is successively composed of a waterproof layer, a heat preservation cushion layer, a heat preservation sand layer and a heat conduction layer from bottom to top. The heat preservation sand layer is filled with granular heat preservation sand. The refrigeration pipe is arranged in the heat preservation sand layer. The heat preservation sand wraps the side and bottom of the refrigeration pipe. The top surface of the refrigeration pipe abuts against the heat conduction layer.

[0009] As a further technical solution of the present invention, the refrigeration pipe extends in an S shape along the bottom of the cold storage body.

[0010] As a further technical solution of the present invention, heat preservation boards are provided around and on the top of the inner wall of the refrigerated chamber.

[0011] As a further technical solution of the present invention, a plurality of cooling pipes are arranged in the cooling cover. The two ends of the cooling pipe are respectively communicated with the air outlet pipe and the cold air return pipe.

[0012] As a further technical solution of the present invention, an atomizing nozzle with an input end communicated with the return water pipe is arranged in the cooling cover. The output end of the atomizing nozzle faces the cooling pipe.

[0013] As a further technical solution of the present invention, the suction fan and the cold air outlet are respectively arranged on opposite sides in the refrigerated chamber.

[0014] As a further technical solution of the present invention, a cold storage entrance and exit is provided on one side of the cold storage body. A cold storage door is hinged to one side edge of the cold storage entrance and exit.

[0015] The beneficial effects of the present invention are as follows:

[0016] The utility model generates low-temperature cold water through a refrigeration structure and makes the cold water circulate through a circulation pump. During the flow of the cold water in the refrigeration pipe, heat exchange occurs between the cold water and the air in the refrigerated chamber, thereby reducing the internal temperature of the refrigerated chamber. At the same time, a suction fan is used to make the air in the refrigerated chamber circulate, so that the air exchanges heat with the cold water in the cooling cover and then flows back into the refrigerated chamber. During the cold water circulation and air circulation processes, the cold water absorbs heat, which can more efficiently cool the refrigerated chamber, so that the internal temperature of the refrigerated chamber can be quickly reduced to the set temperature and maintained stable, improving the refrigeration efficiency of the cold storage under the refrigeration condition at a lower temperature. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a cold storage for storing camellia seeds.

[0018] Figure 2 It is Figure 1 A partial schematic diagram at position A in

[0019] Figure 3 It is Figure 1 A partial schematic diagram at position B in

[0020] Figure 4 It is a top-down cross-sectional view of the bottom of a cold storage for storing camellia seeds.

[0021] Wherein: cold storage body 1, refrigerated chamber 11, waterproof layer 12, thermal insulation cushion layer 13, thermal insulation sand layer 14, heat conduction layer 15, thermal insulation board 16, cold storage entrance and exit 17, cold storage door 18, water-medium refrigeration mechanism 2, refrigeration structure 21, circulation water pump 22, cold water chamber 23, water inlet pipe 24, refrigeration pipe 25, return water pipe 26, water storage tank 3, cooling cover 4, cold air return pipe 41, cold air outlet 42, cooling pipe 43, atomizing nozzle 44, suction fan 5, air outlet pipe 51. Detailed Embodiments

[0022] The following combines the drawings with related embodiments to describe the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the relevant necessary components involved in the present utility model should be regarded as well-known technologies in the technical field, which can be known and mastered by those skilled in the technical field.

[0023] Such as Figures 1-4As shown in the figure, a cold storage for storing camellia seeds includes a cold storage body 1, a water medium refrigeration mechanism 2, a water storage tank 3, and a cooling cover 4. The inside of the cold storage body 1 is hollow to form a refrigerated chamber 11. The water medium refrigeration mechanism 2 is arranged on one side of the cold storage body 1. The water storage tank 3 is located on the outer side of the cold storage body 1. The inside of the cooling cover 4 is hollow and sleeved on the top of the water storage tank 3. The water medium refrigeration mechanism 2 includes a refrigeration structure 21 and a circulating water pump 22. A cold water chamber 23 is jointly provided at the refrigeration end of the refrigeration structure 21 and the input end of the circulating water pump 22. A water inlet pipe 24 extending to the water storage tank 3 is provided in the cold water chamber 23. An output end of the circulating water pump 22 is provided with a refrigeration pipe 25 extending from one end of the cold storage body 1 to the other end. The end of the extended refrigeration pipe 25 is provided with a return water pipe 26 extending to the top of the cooling cover 4. One side of the top of the refrigerated chamber 11 is provided with an exhaust fan 5. An air outlet pipe 51 extending to one side of the cooling cover 4 is provided at the output end of the exhaust fan 5. The other side of the cooling cover 4 is provided with a cold air return pipe 41 communicated with the air outlet pipe 51 and extending to one side of the cold storage body 1. An end of the cold air return pipe 41 is provided with a cold air outlet 42 located in the refrigerated chamber 11. One side of the cold storage body 1 is provided with a cold storage entrance and exit 17. A cold storage door 18 is hinged to one side edge of the cold storage entrance and exit 17. The cold storage entrance and exit 17 is used for staff and stored items to enter and exit the cold storage. The cold storage entrance and exit 17 is closed by the cold storage door 18. The cold storage door 18 is provided with necessary door handles, door locks, sealing tapes and other structures.

[0024] The utility model belongs to a cold storage for refrigerated storage. The refrigerated chamber 11 of the cold storage body 1 is used to accommodate items to be stored. The internal refrigeration temperature of the refrigerated chamber 11 is about 5°C, which is mainly used for refrigerated storage of dried camellia seeds, and can also store other items that need to be refrigerated at about 5°C. The utility model mainly reduces the internal temperature of the refrigerated chamber 11 through a water medium refrigeration mechanism 2. The water medium refrigeration mechanism 2 utilizes water medium refrigeration technology, uses water as a heat transfer medium and stores it in a water storage tank 3. The refrigeration structure 21 includes components such as a compressor, an evaporator, a condenser, pipelines, etc. and necessary refrigerants. The main working principle of the utility model: The water in the water storage tank 3 flows to the cold water chamber 23 through the water inlet pipe 24, and the water in the cold water chamber 23 is cooled to form cold water through the refrigeration end of the refrigeration structure 21. The cold water is pumped into the refrigeration pipe 25 by a circulating water pump 22. The cold water flows along the refrigeration pipe 25 and cools the refrigerated chamber 11 through heat exchange. The cold water that has completed the cooling of the refrigerated chamber 11 leaves the refrigeration pipe 25 and enters the return water pipe 26. The cold water flows through the return water pipe 26 to the cooling cover 4 and then re-enters the water storage tank 3. At the same time, the hot air with a higher temperature at the top of the refrigerated chamber 11 is extracted into the air outlet pipe 51 by an exhaust fan 5. The hot air flows through the air outlet pipe 51 to the cooling cover 4 and exchanges heat with the cold water. The hot air is cooled by the cold water to form cold air and enters the cold air return pipe 41. The cold air re-enters the refrigerated chamber 11 through the cold air outlet 42. The utility model realizes the cooling of the air in the refrigerated chamber 11 through the above-mentioned water cycle and air cycle, so as to form a temperature-reduced environment in the refrigerated chamber 11, and thus can store items that need low-temperature refrigeration.

[0025] The utility model generates low-temperature cold water through the refrigeration structure 21 and makes the cold water circulate through the circulating water pump 22. During the flow of the cold water in the refrigeration pipe 25, it exchanges heat with the air in the refrigerated chamber 11 to reduce the internal temperature of the refrigerated chamber 11. At the same time, the exhaust fan 5 makes the air in the refrigerated chamber 11 circulate, so that the air exchanges heat with the cold water in the cooling cover 4 and then returns to the refrigerated chamber 11. During the processes of the cold water cycle and the air cycle, the cold water absorbs heat, which can more efficiently cool the refrigerated chamber 11, so that the internal temperature of the refrigerated chamber 11 can be quickly reduced to the set temperature and maintained stable. When the utility model uses pure water as the refrigerant, it can also efficiently keep the temperature in the refrigerated chamber 11 at 3 - 6°C, improving the refrigeration efficiency of the cold storage under the refrigeration condition at a lower temperature.

[0026] Such as Figure 1 、 2As shown, as one of the preferred embodiments of the present utility model, the bottom of the cold storage body 1 is successively composed of a waterproof layer 12, a heat preservation cushion layer 13, a heat preservation sand layer 14, and a heat conduction layer 15 from bottom to top. The heat preservation sand layer 14 is filled with granular heat preservation sand. The refrigeration pipe 25 is arranged in the heat preservation sand layer 14, and the heat preservation sand wraps around the side and bottom of the refrigeration pipe 25. The top surface of the refrigeration pipe 25 abuts against the heat conduction layer 15. The refrigeration pipe 25 of the present utility model is laid at the bottom of the cold storage body 1. In the composition structure of the bottom of the cold storage body 1, the waterproof layer 12 is preferably a plastic film, and the plastic film has good waterproofness and can prevent liquid penetration, thereby avoiding the penetration of underground moisture to the surface of the refrigeration pipe 25 and accelerating the corrosion of the refrigeration pipe 25, and improving the service life of the refrigeration pipe 25. The heat preservation cushion layer 13 is preferably a felt, and the felt is elastic and has good heat preservation performance. The felt has a good buffering effect through its elasticity, and can avoid the damage of the refrigeration pipe 25 caused by the deformation of the bottom of the cold storage body 1. The felt also blocks the heat exchange between the cold water in the refrigeration pipe 25 and the outside through its heat preservation performance, so that the cold water remains at a low temperature. The heat preservation sand layer 14 is used to block the heat exchange between the cold water in the refrigeration pipe 25 and the outside, and further keeps the cold water at a low temperature. The heat conduction layer 15 is preferably made of a material with a high heat conduction coefficient, so that the cold water in the refrigeration pipe 25 can efficiently exchange heat with the air in the refrigeration chamber 11, and improve the cooling efficiency of the refrigeration chamber 11.

[0027] As Figure 1 , 3 shown, as one of the preferred embodiments of the present utility model, the refrigeration pipe 25 extends in an S shape along the bottom of the cold storage body 1. The refrigeration pipe 25 extending in an S shape at the bottom of the cold storage can achieve a longer laying length, thereby extending the flow path of the cold water in the refrigeration pipe 25, increasing the time for the cold water to exchange heat with the air in the refrigeration chamber 11, enabling the cold water to absorb more heat in the air in the refrigeration chamber 11, and improving the refrigeration efficiency of the cold storage.

[0028] As Figure 1 shown, as one of the preferred embodiments of the present utility model, heat preservation boards 16 are provided around the four sides and the top of the inner wall of the refrigeration chamber 11. The heat preservation boards 16 are preferably made of a material with a low heat conduction coefficient. By blocking the heat exchange between the air in the refrigeration chamber 11 and the outside through the heat preservation boards 16, the temperature in the refrigeration chamber 11 is kept stable, and the refrigeration effect of the cold storage is improved.

[0029] As Figure 1 , 4As shown, as one of the preferred embodiments of the present utility model, a plurality of cooling pipes 43 are provided in the cooling hood 4. Both ends of the cooling pipes 43 are respectively communicated with the air outlet pipe 51 and the cold air return pipe 41. Hot air exchanges heat with cold water through the cooling pipes 43 in the cooling hood 4. The diameters of the air outlet pipe 51 and the cold air return pipe 41 are both larger than that of the cooling pipes 43. The plurality of cooling pipes 43 with a small diameter have a larger specific surface area, and when the hot air exchanges heat with the cold water, they have a larger contact area, improving the heat exchange efficiency and enabling the hot air to be more efficiently cooled into cold air. In addition, a common condensate recovery structure can be provided at the bottom of the cooling pipes 43. Since there is a temperature difference between the inside and outside of the cooling pipes 43, condensate is likely to precipitate on the inner wall. After recovering the condensate, the humidity of the air in the refrigerating chamber 11 can be reduced, so as to better refrigerate products such as dried oil tea seeds that need to be stored dry.

[0030] As Figure 1 , 4 As shown, as one of the preferred embodiments of the present utility model, an atomizing nozzle 44 with an input end communicated with the return water pipe 26 is provided in the cooling hood 4, and the output end of the atomizing nozzle 44 faces the cooling pipes 43. After the cold water enters the cooling hood 4 along the return water pipe 26, it is atomized into a plurality of small water droplets by the atomizing nozzle 44. These small water droplets have a large specific surface area, which can increase the contact area between the cold water and the cooling pipes 43, thereby improving the heat exchange efficiency between the hot air and the cold water.

[0031] As one of the preferred embodiments of the present utility model, the exhaust fan 5 and the cold air outlet 42 are respectively arranged on opposite sides in the refrigerating chamber 11. The exhaust fan 5 is used to extract the hot air with a higher temperature at the top of the refrigerating chamber 11, while the cold air discharged from the cold air outlet 42 is the cold air cooled by the cold water. The positions of the exhaust fan 5 and the cold air outlet 42 are relatively far apart, which can enable the air inside the refrigerating chamber 11 to circulate better and improve the cooling efficiency of the cold storage.

[0032] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A cold storage for storing oil-tea camellia seeds, comprising a cold storage body (1), a water-medium refrigeration mechanism (2), a water storage tank (3), and a cooling cover (4), characterized in that: The cold storage body (1) is hollow inside to form a cold storage chamber (11), the water medium refrigeration mechanism (2) is arranged on one side of the cold storage body (1), the water storage tank (3) is located on the outside of the cold storage body (1), and the cooling cover (4) is hollow inside and is sleeved on the top of the water storage tank (3); The water-medium refrigeration mechanism (2) comprises a refrigeration structure (21) and a circulating water pump (22); the refrigeration end of the refrigeration structure (21) and the input end of the circulating water pump (22) are jointly provided with a cold water chamber (23); the cold water chamber (23) is provided with a water inlet pipe (24) extending to the water storage tank (3); the output end of the circulating water pump (22) is provided with a refrigeration pipe (25) extending from one end of the cold storage body (1) to the other end; the extended end of the refrigeration pipe (25) is provided with a return water pipe (26) extending to the top of the cooling cover (4); An exhaust fan (5) is provided on one side of the top of the refrigerating chamber (11); an output end of the exhaust fan (5) is provided with an air outlet pipe (51) extending to one side of the cooling cover (4); the other side of the cooling cover (4) is provided with a cold air return pipe (41) connected to the air outlet pipe (51) and extending to one side of the cold storage body (1); an end of the cold air return pipe (41) is provided with a cold air outlet (42) located in the refrigerating chamber (11).

2. The cold storage for storing camellia seeds according to claim 1, characterized in that: The bottom of the cold storage body (1) is composed of a waterproof layer (12), a thermal insulation cushion layer (13), a thermal insulation sand layer (14), and a heat-conducting layer (15) from bottom to top. The thermal insulation sand layer (14) is filled with granular thermal insulation sand. The refrigeration pipe (25) is arranged in the thermal insulation sand layer (14). The thermal insulation sand is wrapped around the side and bottom surfaces of the refrigeration pipe (25). The top surface of the refrigeration pipe (25) is in contact with the heat-conducting layer (15).

3. The cold storage for storing camellia seeds according to claim 1, characterized in that: The refrigeration pipe (25) extends in an S shape along the bottom of the cold storage body (1).

4. The cold storage for storing camellia seeds according to claim 1, characterized in that: Insulation plates (16) are provided around the inner wall and on the top of the refrigerating chamber (11).

5. The cold storage for storing camellia seeds according to claim 1, characterized in that: A plurality of cooling pipes (43) are provided in the cooling cover (4), and two ends of the cooling pipes (43) are respectively connected to the air outlet pipe (51) and the cold air return pipe (41).

6. The cold storage for storing camellia seeds according to claim 5, characterized in that: The cooling hood (4) is provided with an atomizing nozzle (44) whose input end is connected to the return water pipe (26), and whose output end faces the cooling pipe (43).

7. The cold storage for storing camellia seeds according to claim 1, characterized in that: The exhaust fan (5) and the cold air outlet (42) are respectively arranged on two opposite sides of the refrigerating chamber (11).

8. The cold storage for storing camellia seeds according to claim 1, characterized in that: A cold storage entrance and exit (17) is provided on one side of the cold storage body (1), and a cold storage door (18) is hingedly connected to an edge of one side of the cold storage entrance and exit (17).

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