A liquid strike protection structure of a cold and hot all-in-one machine

Abstract

The utility model discloses a cold and hot all -in -one anti -liquid strike protection structure relates to cold and hot all -in -one technical field, including cold and hot all -in -one body, the inside fixed coupling of cold and hot all -in -one body has the conveying pipe, the side end fixed coupling of conveying pipe has the gas -liquid separator, the side end fixed coupling of gas -liquid separator has no.

Description

Technical Field

[0001] This utility model relates to the field of integrated cooling and heating appliances, specifically to a liquid-proof protection structure for integrated cooling and heating appliances. Background Technology

[0002] Integrated cooling and heating units are widely used in industrial temperature control, commercial refrigeration and heating, and other fields. By integrating refrigeration and heating systems, they can precisely adjust the output of cooling or heating capacity according to actual needs, providing stable temperature control for various processes and spatial environments. They play an important role in industries such as chemical, food, and electronics, and are one of the key devices for achieving efficient energy management and temperature regulation.

[0003] Existing integrated cooling and heating systems typically use a compressor as the core power component, transferring heat through the phase change of the refrigerant within the circulation system. The specific working process is as follows: the compressor compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure gas, which then becomes liquid after being cooled by the condenser. The liquid refrigerant is then throttled and depressurized through the expansion valve, enters the evaporator to absorb heat and evaporate back into gas, and then returns to the compressor to complete the cycle, thereby achieving the cooling or heating function. Its operation depends on the stable conversion of the refrigerant between the gas and liquid phases and the normal operation of the circulation system.

[0004] In the operation of existing integrated cooling and heating units, improper control of system operating parameters, such as sudden changes in evaporator load or expansion valve malfunction, may result in liquid refrigerant being drawn into the compressor before it has fully evaporated. After entering the compressor, the liquid refrigerant, due to its incompressibility, generates a huge impact force during the compression process of the compressor piston, a phenomenon known as liquid slugging. Liquid slugging can cause severe impacts on compressor components such as valve plates, pistons, and cylinders, leading to deformation, damage, or even breakage of parts, seriously affecting the compressor's service life. It can also frequently cause equipment failures, shorten the effective operating frequency of the compressor in the integrated cooling and heating unit, and increase maintenance costs and downtime losses. Utility Model Content

[0005] The purpose of this utility model is to provide a liquid slugging protection structure for integrated cooling and heating units, in order to solve the technical problem that liquid slugging can cause severe impacts on the valve plates, pistons, cylinders and other parts of the compressor in the prior art, resulting in deformation, damage or even breakage of the parts, which seriously affects the service life of the compressor. At the same time, it will also frequently cause equipment failures, shorten the effective usage frequency of the compressor in the integrated cooling and heating unit, and increase maintenance costs and downtime losses.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A liquid-slugging protection structure for an integrated cooling and heating unit includes an integrated cooling and heating body; a conveying pipe is fixedly connected to the inside of the integrated cooling and heating body; a gas-liquid separator is fixedly connected to the side end of the conveying pipe; a first connecting pipe is fixedly connected to the side end of the gas-liquid separator; a third connecting pipe is fixedly connected below the first connecting pipe on the side end of the gas-liquid separator; a protective shell is fixedly connected to the inside of the integrated cooling and heating body, and the side end of the first connecting pipe is connected to the protective shell; a second connecting pipe is fixedly connected to the side end of the protective shell; a compressor is fixedly connected to the side end of the second connecting pipe; a liquid storage tank is fixedly connected to the bottom end of the third connecting pipe; a baffle is fixedly connected to the inner wall of the protective shell; and a leakage hole is opened inside the baffle.

[0008] As a further embodiment of this utility model: a support plate is fixedly connected inside the protective shell; a spiral blade is rotatably connected to the side end of the support plate; and a fan blade is fixedly connected to the side end of the spiral blade.

[0009] As a further embodiment of this utility model: a liquid baffle is fixedly connected to the inner wall of the protective shell; a liquid guiding groove is provided inside the bottom end of the protective shell, and the liquid guiding groove is located on one side of the guide tube.

[0010] As a further embodiment of this utility model: a conduit is fixedly connected to the bottom end of the protective shell, and the conduit communicates with the liquid guiding groove; the bottom end of the conduit is connected to the No. 3 connecting pipe.

[0011] The beneficial effects of this utility model are as follows: Gas and liquid are transported to the gas-liquid separator through the delivery pipe. The gas-liquid separator separates the gas and liquid, allowing the gas to be transported to the protective shell through the first connecting pipe and the liquid to be transported to the storage tank through the third connecting pipe. There is a certain probability that liquid will enter the interior of the protective shell through the gas-liquid separator. The baffle can block the liquid. Gas can flow normally into the second connecting pipe through the leakage hole. The baffle blocks the liquid. Through the gas-liquid separator and the baffle, efficient separation is achieved by utilizing the density difference between gas and liquid. The baffle enhances the interception and guiding effect, effectively preventing liquid refrigerant from entering the compressor and causing liquid slugging. This protects the compressor's valve plates, pistons and other core components, extends their service life, increases the compressor usage frequency of the integrated cooling and heating unit and reduces maintenance costs and downtime losses. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the integrated cooling and heating body structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the protective shell structure in this utility model;

[0016] In the diagram: 1. Integrated heating and cooling unit; 2. Delivery pipe; 3. Gas-liquid separator; 4. Connecting pipe No. 1; 5. Protective shell; 6. Connecting pipe No. 2; 7. Compressor; 8. Connecting pipe No. 3; 9. Liquid storage tank; 10. Spiral blade; 11. Support plate; 12. Fan blade; 13. Baffle; 14. Leakage hole; 15. Liquid baffle plate; 16. Liquid guide groove; 17. Conduit. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-3 As shown, a liquid-slugging protection structure for an integrated cooling and heating machine includes an integrated cooling and heating body 1; a conveying pipe 2 is fixedly connected to the inside of the integrated cooling and heating body 1; a gas-liquid separator 3 is fixedly connected to the side end of the conveying pipe 2; a first connecting pipe 4 is fixedly connected to the side end of the gas-liquid separator 3; a third connecting pipe 8 is fixedly connected below the first connecting pipe 4 on the side end of the gas-liquid separator 3; a protective shell 5 is fixedly connected to the inside of the integrated cooling and heating body 1, and the side end of the first connecting pipe 4 is connected to the protective shell 5; a second connecting pipe 6 is fixedly connected to the side end of the protective shell 5; a compressor 7 is fixedly connected to the side end of the second connecting pipe 6; a liquid storage tank 9 is fixedly connected to the bottom end of the third connecting pipe 8; a baffle 13 is fixedly connected to the inner side wall of the protective shell 5; and a leakage hole 14 is opened inside the baffle 13.

[0019] During operation, gas and liquid are transported to gas-liquid separator 3 via delivery pipe 2. Gas-liquid separator 3 separates the gas and liquid, allowing the gas to be transported to protective shell 5 via first connecting pipe 4, and the liquid to be transported to storage tank 9 via third connecting pipe 8. There is a certain probability that liquid may enter the interior of protective shell 5 via gas-liquid separator 3. Baffle 13 can block the liquid. Gas can flow normally into second connecting pipe 6 through leakage hole 14. Baffle 13 can block the liquid, reducing the risk of liquid impacting internal parts of compressor 7 and causing damage. Leak hole 14 is inclined, making it difficult for liquid to follow the gas into second connecting pipe 6. Through gas-liquid separator 3 and baffle 13, efficient separation is achieved by utilizing the density difference between gas and liquid, and the baffle enhances the interception and guiding effect, effectively preventing liquid refrigerant from entering compressor 7 and causing liquid slugging. This protects the valve plates, pistons and other core parts of compressor 7, extends their service life, increases the usage frequency of compressor 7 in integrated cooling and heating unit 1, and reduces maintenance costs and downtime losses.

[0020] A support plate 11 is fixedly connected inside the protective shell 5; a spiral blade 10 is rotatably connected to the side end of the support plate 11; and a fan blade 12 is fixedly connected to the side end of the spiral blade 10.

[0021] After the gas and liquid enter the interior of the protective shell 5, the flow of gas will cause the spiral blade 10 and the fan blade 12 to rotate. The support plate 11 can limit the position of the spiral blade 10 and the fan blade 12. The rotation of the spiral blade 10 can throw the liquid in the gas to the inner wall of the protective shell 5. With the help of the baffle 13, the liquid entering the interior of the compressor 7 can be reduced.

[0022] A liquid baffle 15 is fixed to the inner wall of the protective shell 5; a liquid guiding groove 16 is provided inside the bottom end of the protective shell 5, and the liquid guiding groove 16 is located on one side of the guide tube 17.

[0023] The conduit 17 is located at the bottom of the baffle 13. Liquid blocked by the baffle 13 can fall into the conduit 17. Liquid can enter the third connecting pipe 8 through the conduit 17 and enter the storage tank 9 with the liquid inside the third connecting pipe 8.

[0024] The bottom end of the protective shell 5 is fixedly connected to a conduit 17, which is connected to the liquid guide tank 16; the bottom end of the conduit 17 is connected to the third connecting pipe 8.

[0025] The protective shell 5 is provided with multiple sets of liquid baffles 15 inside. The liquid baffles 15 can block the flow of liquid. The spiral blades 10 can throw the liquid to one side of the liquid baffles 15 on the inner side wall of the protective shell 5. The liquid baffles 15 can block the flow of liquid on the inner side wall of the protective shell 5, so that the liquid flows along the liquid baffles 15 into the liquid guide groove 16. The liquid is discharged into the guide tube 17 through the liquid guide groove 16.

[0026] The working principle of this utility model is as follows: During operation, gas and liquid are transported to the gas-liquid separator 3 through the delivery pipe 2. The gas-liquid separator 3 separates the gas and liquid, allowing the gas to be transported to the protective shell 5 through the first connecting pipe 4, and the liquid to be transported to the storage tank 9 through the third connecting pipe 8. There is a certain probability that liquid may enter the interior of the protective shell 5 through the gas-liquid separator 3. The baffle 13 can block the liquid. Gas can flow normally into the second connecting pipe 6 through the leak hole 14. The baffle 13 blocks the liquid, reducing the risk of liquid impacting the internal parts of the compressor 7 and causing damage. The leak hole 14 is angled, making it difficult for liquid to follow the gas into the second connecting pipe 6. Through the gas-liquid separator 3 and the baffle 13, efficient separation is achieved by utilizing the density difference between gas and liquid. The baffle enhances the interception and guiding effect, effectively preventing liquid refrigerant from entering the compressor 7 and causing liquid slugging. This protects the valve plates, pistons, and other core components of the compressor 7, extends their service life, and increases the operating frequency of the compressor 7 in the integrated cooling and heating unit 1. To reduce maintenance costs and downtime losses: After the gas and liquid enter the interior of the protective shell 5, the flow of gas will cause the spiral blades 10 and fan blades 12 to rotate. The support plate 11 can limit the position of the spiral blades 10 and fan blades 12. The rotation of the spiral blades 10 can throw the liquid in the gas to the inner wall of the protective shell 5. With the help of the baffle 13, the liquid entering the compressor 7 can be reduced. The conduit 17 is set at the bottom of the baffle 13. The liquid blocked by the baffle 13 can fall into the conduit 17. The liquid through the conduit 17 can enter the third connecting pipe 8 and enter the liquid storage tank 9 for storage. The interior of the protective shell 5 is provided with multiple sets of liquid baffles 15. The liquid baffles 15 can block the flow of liquid. The spiral blades 10 can throw the liquid to one side of the liquid baffles 15 on the inner wall of the protective shell 5. The liquid baffles 15 can block the flow of liquid on the inner wall of the protective shell 5, so that the liquid flows along the liquid baffles 15 to the liquid guide groove 16. The liquid is discharged into the conduit 17 through the liquid guide groove 16.

[0027] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A liquid-slugging protection structure for an integrated heating and cooling machine, characterized in that, The system includes a heating and cooling integrated unit (1); a conveying pipe (2) is fixedly connected inside the heating and cooling integrated unit (1); a gas-liquid separator (3) is fixedly connected to the side end of the conveying pipe (2); a first connecting pipe (4) is fixedly connected to the side end of the gas-liquid separator (3); a third connecting pipe (8) is fixedly connected below the first connecting pipe (4) at the side end of the gas-liquid separator (3); a protective shell (5) is fixedly connected inside the heating and cooling integrated unit (1), and the side end of the first connecting pipe (4) is connected to the protective shell (5); a second connecting pipe (6) is fixedly connected to the side end of the protective shell (5); a compressor (7) is fixedly connected to the side end of the second connecting pipe (6); a liquid storage tank (9) is fixedly connected to the bottom end of the third connecting pipe (8); a baffle (13) is fixedly connected to the inner wall of the protective shell (5); and a leakage hole (14) is opened inside the baffle (13).

2. The anti-liquid hammer protection structure for an integrated cooling and heating machine according to claim 1, characterized in that, The protective shell (5) is internally fixed with a support plate (11); a spiral blade (10) is rotatably connected to the side end of the support plate (11); a fan blade (12) is fixed to the side end of the spiral blade (10).

3. The anti-liquid hammer protection structure for an integrated cooling and heating machine according to claim 1, characterized in that, The inner wall of the protective shell (5) is fixed with a baffle plate (15); a liquid guide groove (16) is opened inside the bottom end of the protective shell (5), and the liquid guide groove (16) is located on one side of the guide tube (17).

4. The anti-liquid hammer protection structure for an integrated cooling and heating machine according to claim 1, characterized in that, The bottom end of the protective shell (5) is fixed with a conduit (17), which is connected to the liquid guide tank (16); the bottom end of the conduit (17) is connected to the No. 3 connecting pipe (8).

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