Refrigerant freezing water removal device

By using a refrigerant dehydration device that combines cold and hot coils with an agitator, stainless steel mesh, and electric heater, the problem of refrigerant moisture introduction in air conditioning production is solved, achieving efficient dehydration and energy exchange, and reducing production and testing costs.

CN223840743UActive Publication Date: 2026-01-27JIANGSU JOSUN AIR CONDITIONER
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Patent Information

Application Number
CN202423122875.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-01-27
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

In air conditioner production, a large amount of water is introduced into the refrigerant during the testing process, which increases production and testing costs. Effective water removal devices are needed to enable the reuse of refrigerant.

Method used

The device employs a refrigerant-based dehydration system, utilizing the cold and hot coils of a compression refrigeration system in conjunction with an agitator, stainless steel mesh, and an electric heater. It removes water through freezing and ice formation, while a fan supplies air and the electric heater melts the refrigerant. A multi-blade agitator prevents localized ice formation, thereby improving dehydration efficiency.

Benefits of technology

It achieves efficient removal of moisture from refrigerant, ensuring refrigerant reuse, reducing production and testing costs, and improving dehydration efficiency and energy exchange efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A liquid inlet pipe is connected to the side edge of the upper portion of a water removal tank, a liquid outlet pipe is connected to the side edge of the lower portion of the water removal tank, a waste liquid outlet pipe is connected to the bottom of the water removal tank, a cold coil pipe and a hot coil pipe are arranged in the water removal tank in an up-down spaced mode, the cold coil pipe is externally connected into a compression refrigeration system, one side of the hot coil pipe is connected with an air inlet pipe, and a fan and an electric heater are sequentially arranged on the air inlet pipe. The top of the water removal tank is connected with an exhaust pipe, a stirrer is further arranged in the water removal tank, blades of the stirrer are lower than the cold coil pipe, and a stainless steel mesh layer is arranged above the blades of the stirrer. A compression refrigeration system is adopted to supply cold through a cold coil pipe, a refrigerant in a water removal tank is frozen and frozen, steam is discharged through an exhaust pipe while the refrigerant is frozen and frozen, then air is supplied through a fan, heating is conducted through an electric heater, the frozen refrigerant is melted through a hot air supply coil pipe, the melted refrigerant is obtained, and therefore the refrigerant water removal operation is efficiently completed.
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Description

Technical Field

[0001] This utility model relates to a refrigerant treatment device, specifically a refrigerant freezing and dehydration device. Background Technology

[0002] In air conditioner production, it is necessary to test the cooling performance of the air conditioner. During the test, the refrigerant liquid is very prone to introducing a large amount of water. Discharging the refrigerant as waste liquid greatly increases the production and testing costs. Therefore, an effective water removal device is needed to remove water from the refrigerant and reuse it. Summary of the Invention

[0003] This invention provides a refrigerant dehydration device that can conveniently and efficiently remove moisture from refrigerant.

[0004] The technical solution adopted by this utility model is: a refrigerant refrigeration dehydration device, including a dehydration tank, characterized in that: the upper side of the dehydration tank is connected to an inlet pipe, the lower side is connected to an outlet pipe, and the bottom is connected to a waste liquid pipe; cold coils and hot coils are arranged at intervals at the top and bottom inside the dehydration tank; the cold coils are externally connected to the compression refrigeration system; one side of the hot coil is connected to an air inlet pipe, and a fan and an electric heater are arranged sequentially on the air inlet pipe; the other side of the hot coil is externally connected to an exhaust pipe at the top of the dehydration tank; an agitator is also arranged inside the dehydration tank, the blades of the agitator are lower than the cold coils, and a stainless steel mesh layer is arranged above the agitator blades.

[0005] A filter is installed on the exhaust pipe.

[0006] The stainless steel mesh layer consists of two layers, an upper layer and a lower layer, with the lower layer having a smaller mesh count than the upper layer.

[0007] The stirrer includes two or more blades, with at least one blade located below the hot coil and at least one blade located between the cold coil and the hot coil.

[0008] The water removal tank is equipped with a level gauge.

[0009] The hot coil and cold coil are finned.

[0010] The compression refrigeration system includes a compressor, a condenser, a liquid receiver, a dryer filter, and an expansion valve. The compressor exhaust is connected to one side of the cooling coil via the condenser, the liquid receiver, the dryer filter, and the expansion valve. The other side of the cooling coil is connected to the return compressor.

[0011] The beneficial effects of this utility model are:

[0012] 1. A compression refrigeration system is used to supply cooling through a cold coil, which freezes the refrigerant in the dewatering tank. At the same time as freezing, water vapor is discharged through the exhaust pipe. Then, air is delivered by a fan and heated by an electric heater. The hot air is delivered to the hot coil to melt the frozen refrigerant. The melted refrigerant thus efficiently completes the refrigerant dewatering operation.

[0013] 2. Multiple blades of the agitator are used to stir the refrigerant and break the ice at the bottom, preventing localized freezing of the refrigerant, effectively ensuring overall freezing of the refrigerant, and improving the dewatering effect.

[0014] 3. The use of stainless steel mesh layers with different mesh sizes on the upper and lower sections provides effective adhesion for refrigerant icing, improving refrigerant icing efficiency and thus meeting the requirements for high-speed water removal.

[0015] 4. Water vapor is discharged through the exhaust pipe. The refrigerant carried in the water vapor can be filtered out by the filter to prevent exhaust pollution.

[0016] 5. The cold and hot coils are equipped with fins to further improve energy exchange efficiency, thereby enabling high-speed freezing and melting and meeting the requirements for high-speed water removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the water removal tank structure of this utility model;

[0018] Figure 2 This is a schematic diagram illustrating the principle of this utility model.

[0019] In the diagram: 1. Water tank; 2. Inlet pipe; 3. Outlet pipe; 4. Waste liquid tank; 5. Cold coil; 6. Hot coil; 7. Inlet pipe; 8. Fan; 9. Electric heater; 10. Exhaust pipe; 11. Agitator; 12. Blade; 13. Stainless steel mesh layer; 14. Filter; 15. Compressor; 16. Condenser; 17. Liquid storage tank; 18. Dryer filter; 19. Expansion valve. Detailed Implementation

[0020] The following explanation, in conjunction with the accompanying drawings, will provide further details.

[0021] Figure 1 , 2 As shown: A refrigerant refrigeration dehydration device includes a dehydration tank 1, an inlet pipe 2, an outlet pipe 3, a waste liquid tank 4, a cold coil 5, a hot coil 6, an air inlet pipe 7, a fan 8, an electric heater 9, an exhaust pipe 10, a stirrer 11, blades 12, a stainless steel mesh layer 13, a filter 14, a compressor 15, a condenser 16, a liquid storage tank 17, a dryer filter 18, and an expansion valve 19.

[0022] The upper side of the dewatering tank 1 is connected to the inlet pipe 2, the lower side is connected to the outlet pipe 3, and the bottom is connected to the waste liquid pipe 4. The dewatering tank 1 is equipped with a cold coil 5 and a hot coil 6 at intervals. One side of the cold coil 5 is connected to the return gas of the compressor 15. The compressor 15 is connected to the other side of the cold coil 5 in sequence through the condenser 16, the liquid storage tank 17, the dryer filter 18, and the expansion valve 19. One side of the hot coil 6 is connected to the air inlet pipe 7. The air inlet pipe 7 is equipped with a fan 8 and an electric heater 9 in sequence. The other side of the hot coil is connected to the outside. The top of the dewatering tank 1 is connected to the exhaust pipe 10 with a filter 14. The dewatering tank 1 is also equipped with an agitator 11. A stainless steel mesh layer 13 is installed above the blades 12 of the agitator 11.

[0023] In this embodiment, the stainless steel mesh layer includes upper and lower layers, with the lower layer having a smaller mesh count than the upper layer; the stirrer 11 includes two or more blades 12, with at least one blade located below the hot coil and at least one blade located between the cold coil and the hot coil.

[0024] Based on this embodiment, a level gauge can be installed inside the water tank.

[0025] Based on this embodiment, fins can be added to the hot coil and cold coil.

Claims

1. A refrigerant refrigeration dehydration device, comprising a dehydration tank, characterized in that: The dewatering tank has an inlet pipe on the upper side, an outlet pipe on the lower side, and a waste liquid outlet pipe at the bottom. Inside the dewatering tank, cold coils and hot coils are installed at intervals on the upper and lower sides. The cold coils are connected to the external compression refrigeration system, and one side of the hot coil is connected to the air inlet pipe. A fan and an electric heater are installed sequentially on the air inlet pipe. The other side of the hot coil is connected to the external system. An exhaust pipe is connected to the top of the dewatering tank. An agitator is also installed inside the dewatering tank. The blades of the agitator are lower than the cold coils, and a stainless steel mesh layer is installed above the agitator blades.

2. The refrigerant-cooled dehydration device according to claim 1, characterized in that: A filter is installed on the exhaust pipe.

3. The refrigerant-cooled dehydration device according to claim 1, characterized in that: The stainless steel mesh layer consists of two layers, an upper layer and a lower layer, with the lower layer having a smaller mesh count than the upper layer.

4. The refrigerant-cooled dehydration device according to claim 1, characterized in that: The stirrer includes two or more blades, with at least one blade located below the hot coil and at least one blade located between the cold coil and the hot coil.

5. The refrigerant-cooled dehydration device according to claim 1, characterized in that: The water removal tank is equipped with a level gauge.

6. The refrigerant-cooled dehydration device according to claim 1, characterized in that: The hot coil and cold coil are finned.

7. The refrigerant-cooled dehydration device according to claim 1, characterized in that: The compression refrigeration system includes a compressor, a condenser, a liquid receiver, a dryer filter, and an expansion valve. The compressor exhaust is connected to one side of the cooling coil via the condenser, the liquid receiver, the dryer filter, and the expansion valve. The other side of the cooling coil is connected to the return compressor.