A refrigeration device for ship electrical equipment

Abstract

The utility model belongs to a ship electrical equipment refrigeration device in the field of ship technology. A compressor (8) is connected to one end of a heat exchanger (13), the heat exchanger (13) is located in a seawater cooling tower (14) with a cavity structure, the other end of the heat exchanger (13) is connected to one end of a cooling pipeline of an evaporator (19), the other end of the cooling pipeline of the evaporator (19) is connected to the compressor (8), one end of a heat exchange pipeline of an electrical equipment load end (1) is connected to one end of a heat exchange pipeline of the evaporator (19), the other end of a heat exchange pipeline of the evaporator (19) is connected to the other end of a heat exchange pipeline of an electrical equipment load end (1), and a working fluid box (28) is connected to the evaporator (19). The ship electrical equipment refrigeration device described in the utility model has a simple structure, is based on the condition that the ship is traveling on the sea surface, is adapted to local conditions, uses seawater to achieve refrigerant cooling, exchanges heat with electrical equipment, effectively meets the cooling demand of the electrical equipment, does not need to be equipped with a fan, no longer has electricity consumption, and saves costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of ships, and more specifically relates to a refrigeration device for ship electrical equipment. Background Art

[0002] With the development of science and technology, the electrification degree of various types of ships in the shipbuilding field is constantly improving, the scale of electrical equipment construction is getting larger and larger, and the heat generated is also increasing. In order to improve the service life and safety performance of electrical equipment, heat dissipation devices can be installed to remove the heat generated by electrical equipment and cool the electrical equipment. At present, traditional air-cooled heat exchange devices need to install fans, which consume a lot of power and are increasingly unable to meet the heat dissipation needs of electrical equipment.

[0003] There is a technology named "evaporative cooling type gas insulated electrical equipment" and the publication number "JPS60102715A" in the prior art, which shortens the height of the entire ship by installing a refrigerant storage for condensed water in the refrigerant circulation path from the pump to the sprinkler. Configuration: When the electrical equipment 1 is in a load state, the electrical equipment 1 generates heat when the pump 5 is started, the refrigerant storage 21 is filled with condensate 15, and the condensate 15 is sprayed to the electrical equipment 1 after filling through the sprinkler 7. Therefore, the condensate 15 absorbs the heat of the electrical equipment 1, and evaporates through the refrigerant vapor 14 and flows into the condenser 3, condenses and liquefies with heat, and becomes condensate, and descends to the lower part 3 of the condenser and flows to the bottom of the container 3. Therefore, the condensate 15 is taken out by the pump 5, and the surface of the liquid is lowered under the load, thereby ensuring the vapor flow path.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a ship electrical equipment refrigeration device with a simple structure is provided, which is adapted to local conditions based on the condition that the ship is sailing on the sea surface, utilizes seawater to achieve refrigerant cooling, and exchanges heat with electrical equipment, thereby effectively meeting the cooling needs of the electrical equipment, does not need to be equipped with a fan, no longer consumes electricity, and saves costs.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0007] The utility model is a refrigeration device for ship electrical equipment, wherein a compressor is connected to one end of a heat exchanger, the heat exchanger is located in a seawater cooling tower with a cavity structure, the other end of the heat exchanger is connected to one end of a cooling pipeline of an evaporator, the other end of the cooling pipeline of the evaporator is connected to the compressor, one end of an equipment heat exchange pipeline at a load end of the electrical equipment is connected to one end of a heat exchange pipeline of the evaporator, the other end of the heat exchange pipeline of the evaporator is connected to the other end of an equipment heat exchange pipeline at a load end of the electrical equipment, a working fluid box is connected to the evaporator, and the working fluid box is connected to the load end of the electrical equipment.

[0008] The seawater cooling tower is provided with a seawater inlet and a seawater outlet. The seawater inlet is provided with a seawater inlet pump and an inlet opening and closing electromagnetic valve, and the seawater outlet is provided with a seawater discharge pump and an outlet opening and closing electromagnetic valve.

[0009] The compressor is arranged on a first pipeline, one end of the first pipeline is connected to one end of the heat exchanger, and the other end of the first pipeline is connected to the other end of the cooling pipeline of the evaporator.

[0010] The other end of the heat exchanger is connected to one end of the second pipeline, and the other end of the second pipeline is connected to one end of the cooling pipeline of the evaporator.

[0011] One end of the heat exchange pipe of the equipment at the load end of the electrical equipment is connected to one end of the heat exchange pipe of the evaporator through the third pipe, and the other end of the heat exchange pipe of the evaporator is connected to the other end of the heat exchange pipe of the equipment at the load end of the electrical equipment through the fourth pipe 35. The inlet of the liquid supply pump is connected to the inlet of the evaporator through the fifth pipe.

[0012] The first pipeline is provided with a high pressure gauge, a high pressure switch and an oil separator, the oil separator is connected with the compressor inlet through the first branch pipe, and the first branch pipe is provided with an oil return solenoid valve.

[0013] The second pipeline is provided with a liquid reservoir, a dryer, and a throttling device, a needle valve II is installed on the second pipeline between the liquid reservoir and the dryer, and a needle valve I, a low-pressure switch and a low-pressure gauge are installed at the compressor inlet.

[0014] The third pipeline is installed with a liquid supply pump, a filter, a gate valve, a temperature sensor III, a pressure sensor and a safety valve in sequence from one end close to the evaporator to the end close to the load end of the electrical equipment. A check valve is installed on the liquid supply pump, and a bypass valve is installed on the fifth pipeline between the liquid supply pump inlet and the evaporator inlet.

[0015] The fourth pipeline is provided with a ball valve, a temperature sensor I and a flow sensor in sequence from the end close to the load end of the electrical equipment to the end close to the evaporator.

[0016] A temperature sensor II is connected in series at the inlet of the working fluid box.

[0017] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0018] The ship electrical equipment refrigeration equipment described in the utility model, when the structure is set, the load end of the electrical equipment needs to be cooled, the evaporator is used for heat exchange, the heat exchanger and the seawater cooling tower are used for heat exchange, and the working fluid box is connected to the evaporator. When heat exchange is performed, the refrigerant is heated and pressurized by the compressor to form a high-temperature and high-pressure gas, which is sent to the heat exchanger. The heat exchanger is arranged in the seawater cooling tower, and the seawater introduced by the seawater cooling tower exchanges heat with the heat exchanger, so that the refrigerant inside the heat exchanger is cooled and liquefied. Then the refrigerant is throttled and depressurized by the throttling device, enters the evaporator and exchanges heat with the high-temperature working fluid after cooling the load end of the electrical equipment, and the refrigerant forms a low-pressure gas. Finally, the refrigerant enters the compressor to complete a cycle. The working fluid works normally in a low-temperature environment, is resistant to low temperatures, and has very stable performance. The low-temperature working fluid in the working fluid box is transported to the load end of the electrical equipment by a liquid supply pump, and the heat generated in the electrical equipment exchanges heat with the working fluid, and the heat is transferred to the working fluid. Then the high-temperature working fluid enters the evaporator, exchanges heat with the refrigerant, and the working fluid forms a low-temperature working fluid, which enters the working fluid box to complete a cycle. According to the technical solution of the utility model, seawater does not need to be purified, that is, sewage can also directly exchange heat with the coolant in the heat exchanger; the cooling medium for cooling the electrical equipment can work stably in a low temperature environment and has good low temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 This is a structural schematic diagram of the ship electrical equipment refrigeration equipment described in the utility model;

[0021] The marks in the attached drawings are: 1. load end of electrical equipment; 2. ball valve; 3. temperature sensor I; 4. flow sensor; 5. needle valve I; 6. low pressure switch; 7. low pressure gauge; 8. compressor; 9. high pressure gauge; 10. high pressure switch; 11. oil separator; 12. oil return solenoid valve; 13. heat exchanger; 14. seawater cooling tower; 15. liquid storage tank; 16. needle valve II; 17. dryer; 18. throttling device; 19. evaporator; 20. temperature sensor II; 21. liquid supply pump; 22. check valve; 23. filter; 24. gate valve; 25. temperature sensor III; 26. pressure sensor; 27. safety valve; 28. working fluid box; 29. ​​bypass valve; 30. seawater inlet; 31. seawater outlet; 32. first pipeline; 33. second pipeline; 34. third pipeline; 35. fourth pipeline; 36. first branch pipe; 37. fifth pipeline. DETAILED DESCRIPTION

[0022] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0023] As attached Figure 1 As shown, the utility model is a refrigeration equipment for ship electrical equipment, the compressor 8 is connected to one end of the heat exchanger 13, the heat exchanger 13 is located in the seawater cooling tower 14 of the cavity structure, the other end of the heat exchanger 13 is connected to one end of the cooling pipeline of the evaporator 19, the other end of the cooling pipeline of the evaporator 19 is connected to the compressor 8, one end of the equipment heat exchange pipeline of the load end 1 of the electrical equipment is connected to one end of the heat exchange pipeline of the evaporator 19, the other end of the heat exchange pipeline of the evaporator 19 is connected to the other end of the equipment heat exchange pipeline of the load end 1 of the electrical equipment. The working fluid box 28 is connected to the evaporator 19, and the working fluid box 28 is connected to the load end 1 of the electrical equipment. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When the structure is set, the load end 1 of the electrical equipment needs to be cooled, the evaporator 19 is used for heat exchange, the heat exchanger 13 and the seawater cooling tower 14 are used for heat exchange, and the working fluid box 28 is connected to the evaporator 19. When heat exchange is performed, the refrigerant is heated and pressurized by the compressor 8 to form a high-temperature and high-pressure gas, which is sent to the heat exchanger 13. The heat exchanger 13 is arranged in the seawater cooling tower 14. The seawater introduced into the seawater cooling tower 14 exchanges heat with the heat exchanger 13, so that the refrigerant inside the heat exchanger 13 is cooled and liquefied. Then the refrigerant is throttled and depressurized by the throttling device 18, enters the evaporator 19 and exchanges heat with the high-temperature working medium after cooling the load end 1 of the electrical equipment. The refrigerant forms a low-pressure gas, and finally the refrigerant enters the compressor 8 to complete a cycle. The working medium works normally in a low-temperature environment, is resistant to low temperatures, and has very stable performance. The low-temperature working medium in the working medium box 28 is transported to the load end 1 of the electrical equipment through the liquid supply pump 21. The heat generated in the electrical equipment exchanges heat with the working medium, and the heat is transferred to the working medium. Then the high-temperature working medium enters the evaporator 19, exchanges heat with the refrigerant, and the working medium forms a low-temperature working medium and enters the working medium box to complete a cycle. In the technical scheme of the utility model, the seawater does not need to be purified, that is, sewage can also directly exchange heat with the coolant in the heat exchanger; the cooling working medium for cooling the electrical equipment can work stably in a low-temperature environment and has good low-temperature resistance. The ship electrical equipment refrigeration device described in the utility model has a simple structure. Based on the condition that the ship is sailing on the sea, it is adapted to local conditions and uses seawater to realize refrigerant cooling and heat exchange with the electrical equipment, thereby effectively meeting the cooling needs of the electrical equipment. It does not need to be equipped with a fan, no electricity consumption occurs, and cost is saved.

[0024] The seawater cooling tower 14 is provided with a seawater inlet 30 and a seawater outlet 31. The seawater inlet 30 is provided with a seawater inlet pump and an inlet opening and closing electromagnetic valve, and the seawater outlet 31 is provided with a seawater outlet pump and an outlet opening and closing electromagnetic valve. In the above structure, the seawater inlet 30 is used for introducing low-temperature seawater before heat exchange, and the seawater outlet 31 is used for discharging high-temperature seawater after heat exchange. The seawater inlet pump is used to realize the pumping of seawater, and the inlet opening and closing electromagnetic valve is used to control the on-off and opening adjustment of the seawater inlet. The seawater outlet pump is used to realize the discharge of seawater, and the outlet opening and closing electromagnetic valve is used to control the on-off and opening adjustment of the seawater outlet.

[0025] In the structure of the utility model, the refrigerant circulates among the compressor 8, the heat exchanger 13, and the evaporator 19, the seawater cools the refrigerant, the working medium circulates among the working medium box 28, the evaporator 19, and the load end 1 of the electrical equipment, and the refrigerant in the evaporator cools the high-temperature working medium after heat exchange.

[0026] The compressor 8 is arranged on the first pipeline 32, one end of the first pipeline 32 is connected to one end of the heat exchanger 13, and the other end of the first pipeline 32 is connected to the other end of the cooling pipeline of the evaporator 19. The other end of the heat exchanger 13 is connected to one end of the second pipeline 33, and the other end of the second pipeline 33 is connected to one end of the cooling pipeline of the evaporator 19. In the above structure, when heat exchange is performed, the refrigerant is heated and pressurized by the compressor 8 to form a high-temperature and high-pressure gas, which is sent to the heat exchanger 13 through the first pipeline 32. The heat exchanger 13 is arranged in the seawater cooling tower 14, and the seawater introduced by the seawater cooling tower 14 exchanges heat with the heat exchanger 13, so that the refrigerant inside the heat exchanger 13 is cooled and liquefied. Then the refrigerant is transported through the second pipeline 33, and the refrigerant is throttled and depressurized by the throttling device 18, and enters the evaporator 19 to exchange heat with the high-temperature working medium after the load end 1 of the cooling electrical equipment, and the refrigerant forms a low-pressure gas. Using seawater to cool the refrigerant does not require additional cooling investment.

[0027] One end of the equipment heat exchange pipeline at the load end 1 of the electrical equipment is connected to one end of the heat exchange pipeline of the evaporator 19 through the third pipeline 34, and the other end of the heat exchange pipeline of the evaporator 19 is connected to the other end of the equipment heat exchange pipeline at the load end 1 of the electrical equipment through the fourth pipeline 35. The outlet of the liquid supply pump 21 is connected to the fourth pipeline through the fifth pipeline 37. The refrigerant inside the heat exchanger 13 is cooled and liquefied. Then the refrigerant is throttled and depressurized by the throttling device 18, enters the evaporator 19, and exchanges heat with the high-temperature working medium after cooling the load end 1 of the electrical equipment, and the refrigerant forms a low-pressure gas. Finally, the refrigerant enters the compressor 8 to complete a cycle. The working medium works normally in a low-temperature environment, is resistant to low temperatures, and has very stable performance. The low-temperature working fluid in the working fluid box 28 is transported to the load end 1 of the electrical equipment through the liquid supply pump 21 and the fifth pipeline 37. The heat generated in the electrical equipment is exchanged with the working fluid, and the heat is transferred to the working fluid. Then the high-temperature working fluid is sent back to the evaporator 19 through the fourth pipeline, and heat is exchanged with the refrigerant. The working fluid forms a low-temperature working fluid, and then the low-temperature working fluid enters the working fluid box for storage, completing a cycle. The low-temperature working fluid in the working fluid box is used to cool the load end 1 of the electrical equipment, and the high-temperature working fluid after cooling the load end 1 of the electrical equipment enters the evaporator 19, and heat is exchanged with the refrigerant. The working fluid forms a low-temperature working fluid and is stored in the working fluid box 28.

[0028] The first pipeline 32 is provided with a high-pressure gauge 9, a high-pressure switch 10 and an oil separator 11, the oil separator 11 is connected to the inlet of the compressor 8 through the first branch pipe 36, and the first branch pipe 36 is provided with an oil return solenoid valve 12. The second pipeline 33 is provided with a liquid reservoir 15, a dryer 17, and a throttle valve 18, a needle valve II 16 is installed on the second pipeline 33 between the liquid reservoir 15 and the dryer 17, and a needle valve I 5, a low-pressure switch 6 and a low-pressure gauge 7 are installed at the inlet of the compressor 8.

[0029] The third pipeline 34 is installed with a liquid supply pump 21, a filter 23, a gate valve 24, a temperature sensor III 25, a pressure sensor 26 and a safety valve 27 in sequence from the end close to the evaporator 19 to the end close to the load end 1 of the electrical equipment. The check valve 22 is installed on the liquid supply pump 21, and a bypass valve 29 is installed on the fifth pipeline 37 between the inlet of the liquid supply pump 21 and the inlet of the evaporator 19.

[0030] The fourth pipeline 35 is provided with a ball valve 2, a temperature sensor Ⅰ3 and a flow sensor 4 in sequence from the end close to the load end 1 of the electrical equipment to the end close to the evaporator 19.

[0031] The inlet of the working fluid box 28 is connected in series with a temperature sensor II 20 .

[0032] The ship electrical equipment refrigeration equipment described in the utility model, when the structure is set, the load end 1 of the electrical equipment needs to be cooled, the evaporator 19 is used for heat exchange, the heat exchanger 13 and the seawater cooling tower 14 are used for heat exchange, and the working medium box 28 is connected to the evaporator 19. When heat exchange is performed, the refrigerant is heated and pressurized by the compressor 8 to form a high-temperature and high-pressure gas, which is sent to the heat exchanger 13. The heat exchanger 13 is arranged in the seawater cooling tower 14, and the seawater introduced by the seawater cooling tower 14 exchanges heat with the heat exchanger 13, so that the refrigerant inside the heat exchanger 13 is cooled and liquefied. Then the refrigerant is throttled and depressurized by the throttling device 18, enters the evaporator 19, and exchanges heat with the high-temperature working medium after cooling the load end 1 of the electrical equipment, and the refrigerant forms a low-pressure gas. Finally, the refrigerant enters the compressor 8 to complete a cycle. The working medium works normally in a low-temperature environment, is resistant to low temperatures, and has very stable performance. The low-temperature working medium in the working medium box 28 is transported to the load end 1 of the electrical equipment through the liquid supply pump 21. The heat generated in the electrical equipment is exchanged with the working medium, and the heat is transferred to the working medium. Then the high-temperature working medium enters the evaporator 19, exchanges heat with the refrigerant, and the working medium forms a low-temperature working medium, which enters the working medium box, completing a cycle. In the technical solution of the utility model, seawater does not need to be purified, that is, sewage can also directly exchange heat with the coolant in the heat exchanger; the cooling working medium for cooling the electrical equipment can work stably in a low-temperature environment and has good low-temperature resistance.

[0033] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A ship electrical equipment refrigeration device, characterized in that: The compressor (8) is connected to one end of the heat exchanger (13), the heat exchanger (13) is located in a seawater cooling tower (14) with a cavity structure, the other end of the heat exchanger (13) is connected to one end of a cooling pipeline of an evaporator (19), the other end of the cooling pipeline of the evaporator (19) is connected to the compressor (8), one end of an equipment heat exchange pipeline at the load end (1) of the electrical equipment is connected to one end of a heat exchange pipeline of the evaporator (19), the other end of the heat exchange pipeline of the evaporator (19) is connected to the other end of an equipment heat exchange pipeline at the load end (1) of the electrical equipment, the working fluid box (28) is connected to the evaporator (19), and the working fluid box (28) is connected to the load end (1) of the electrical equipment; The seawater cooling tower (14) is provided with a seawater inlet (30) and a seawater outlet (31). The seawater inlet (30) is provided with a seawater inlet pump and an inlet opening and closing electromagnetic valve, and the seawater outlet (31) is provided with a seawater outlet pump and an outlet opening and closing electromagnetic valve.

2. The ship electrical equipment refrigeration equipment according to claim 1, characterized in that: The compressor (8) is arranged on the first pipeline (32), one end of the first pipeline (32) is connected to one end of the heat exchanger (13), and the other end of the first pipeline (32) is connected to the other end of the cooling pipeline of the evaporator (19).

3. The ship electrical equipment refrigeration device according to claim 2, characterized in that: The other end of the heat exchanger (13) is connected to one end of the second pipeline (33), and the other end of the second pipeline (33) is connected to one end of the cooling pipeline of the evaporator (19).

4. The ship electrical equipment refrigeration device according to claim 3, characterized in that: One end of the equipment heat exchange pipeline at the load end (1) of the electrical equipment is connected to one end of the heat exchange pipeline of the evaporator (19) via a third pipeline (34); the other end of the heat exchange pipeline of the evaporator (19) is connected to the other end of the equipment heat exchange pipeline at the load end (1) of the electrical equipment via a fourth pipeline (35); and the liquid supply pump (21) is connected to the fourth pipeline (35) via a fifth pipeline (37).

5. The ship electrical equipment refrigeration device according to claim 2, characterized in that: The first pipeline (32) is provided with a high-pressure meter (9), a high-pressure switch (10) and an oil separator (11); the oil separator (11) is connected to the inlet of the compressor (8) through a first branch pipe (36); and an oil return solenoid valve (12) is provided on the first branch pipe (36).

6. The ship electrical equipment refrigeration device according to claim 3, characterized in that: The second pipeline (33) is provided with a liquid reservoir (15), a dryer (17), and a throttling device (18); a needle valve II (16) is installed on the second pipeline (33) between the liquid reservoir (15) and the dryer (17); and a needle valve I (5), a low-pressure switch (6), and a low-pressure gauge (7) are installed at the inlet of the compressor (8).

7. The ship electrical equipment refrigeration device according to claim 4, characterized in that: The third pipeline (34) is provided with a liquid supply pump (21), a filter (23), a gate valve (24), a temperature sensor III (25), a pressure sensor (26) and a safety valve (27) in sequence from one end close to the evaporator (19) to one end close to the load end (1) of the electrical equipment. A check valve (22) is installed on the liquid supply pump (21). A bypass valve (29) is installed on the fifth pipeline (37) between the inlet of the liquid supply pump (21) and the inlet of the evaporator (19).

8. The ship electrical equipment refrigeration device according to claim 4, characterized in that: The fourth pipeline (35) is provided with a ball valve (2), a temperature sensor I (3) and a flow sensor (4) in sequence from the end close to the load end (1) of the electrical equipment to the end close to the evaporator (19).

9. The ship electrical equipment refrigeration device according to claim 1, characterized in that: The inlet of the working fluid box (28) is connected in series with a temperature sensor II (20).

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