Large oil pool cold and hot circulating water exchange cooling system

Abstract

The utility model discloses a large oil pool cold and hot circulating water exchange cooling system which comprises an oil pool, a cooling water pool, a water cooling assembly and an air cooling assembly. A cooling tower frame is arranged in the cooling water pool, a hot oil pipe set is installed in the cooling tower frame, an oil inlet pipe and an oil return pipe are communicated between the oil pool and the hot oil pipe set, and oil delivery pumps are installed on the oil inlet pipe and the oil return pipe. A water cooling assembly and an air cooling assembly are arranged on the cooling tower frame; the water cooling assembly comprises a water delivery pump, a water delivery pipe and a spraying pipe set, one end of the water delivery pipe communicates with the cooling water pond, the other end of the water delivery pipe communicates with the spraying pipe set, the water delivery pump is connected to the water delivery pipe, and the spraying pipe set is located at the top of the hot oil pipe set. The air cooling assembly comprises a water collector and a negative pressure fan, the water collector is located on the top of the spraying pipe set, and the negative pressure fan is installed on the top of the cooling tower frame. According to the utility model, hot oil can be quickly cooled, the cooling effect is good, the temperature in the oil bath is easy to maintain stable, and the quenching quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling systems, in particular to a large oil pool cold and hot circulating water exchange cooling system. Background Art

[0002] Quenching is a common metal heat treatment method used to improve the physical properties of metals, especially to increase the hardness and strength of metals. Quenching oil is a commonly used cooling medium for quenching heat treatment. After quenching, the increased oil temperature needs to be cooled promptly and efficiently to meet the continuous cooling medium demand for quenching heat treatment and ensure the quenching quality.

[0003] At present, oil pool cooling is to inject low-temperature oil from a large oil tank stored underground into the oil pool, and then pump the high-temperature oil from the oil pool back into the oil tank to achieve circulating self-cooling. This oil pool cooling method has low cooling efficiency, and the difference between the initial oil temperature and the final oil temperature is large, and the temperature in the oil pool is unstable. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a large oil pool hot and cold circulating water exchange cooling system, which can realize rapid cooling of hot oil, has good cooling effect, and ensures the temperature stability in the oil pool.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a large oil pool hot and cold circulating water exchange cooling system, including an oil pool, a cooling water pool, a water cooling component and an air cooling component;

[0006] A cooling tower is provided in the cooling water pool, a hot oil pipe group is installed in the cooling tower, an oil inlet pipe and an oil return pipe are connected between the oil pool and the hot oil pipe group, and an oil pump is installed on the oil inlet pipe and the oil return pipe;

[0007] The cooling tower is provided with a water cooling component and an air cooling component;

[0008] The water cooling assembly includes a water delivery pump, a water delivery pipe and a spray pipe group. The cooling water pool stores cooling water. One end of the water delivery pipe is connected to the cooling water pool, and the other end is connected to the spray pipe group. The water delivery pump is connected to the water delivery pipe. The spray pipe group is located on the top of the hot oil pipe group.

[0009] The air cooling component includes a water collector and a negative pressure fan. The water collector is installed in the cooling tower frame and is located on the top of the spray pipe group. The negative pressure fan is installed on the top of the cooling tower frame.

[0010] Furthermore, the hot oil pipe group includes an oil distribution transverse pipe, a plurality of branch pipes and an oil collection transverse pipe. The end of the oil inlet pipe away from the oil pool is connected to the oil distribution transverse pipe, one end of a plurality of branch pipes is connected to the oil distribution transverse pipe, and the other end is connected to the oil collection transverse pipe. The oil collection transverse pipe is connected to the end of the oil return pipe away from the oil pool; the branch pipes are coiled in an "S" shape in the height direction.

[0011] Furthermore, the spray pipe group includes transverse pipes and longitudinal pipes that are vertically interlaced and connected to each other, and a plurality of nozzles are connected to the bottoms of the transverse pipes and longitudinal pipes.

[0012] Furthermore, the water collector includes a plurality of heat sink plates and connecting rods, the plurality of heat sink plates are arranged parallel to each other, the heat sink plates are in a "Z" shape, the connecting rods are passed through each heat sink plate, and both ends of the connecting rods are fixedly connected to the cooling tower.

[0013] Furthermore, a convection stirring assembly is provided in the cooling water pool, and the convection stirring assembly includes two spiral rods and two driving motors. The two spiral rods are arranged in parallel and rotatably connected in the cooling water pool. One end of the spiral rod passes through the cooling water pool and is connected to the output shaft of the driving motor. The tangential direction of the rotation direction of the side where the two spiral rods are close to each other is downward.

[0014] Beneficial effects of the utility model:

[0015] The utility model realizes double cooling of hot oil by arranging water cooling components and air cooling components, has fast cooling speed and good effect, can ensure the stability of oil temperature in the oil pool, and thus ensures quenching quality; water is sprayed on the surface of the hot oil pipe group through the spray pipe group, and the two exchange heat to realize water cooling of the hot oil in the hot oil pipe group. At the same time, the negative pressure fan performs suction to accelerate the gas flow rate in the cooling tower, accelerates the heat transfer between the air and the hot oil pipe, and quickly discharges the heat to the outside; in addition, the steam generated by the heat exchange between water and hot oil can also be quickly discharged through the negative pressure fan, effectively improving the cooling efficiency; the convection stirring component can stir the water in the cooling water pool, and the water convection exchange between the two spiral twisted rods can accelerate the cooling of the water temperature in the cooling water pool, and ensure the cooling effect of the cooling water on the hot oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram used to reflect the internal structure of the cooling tower frame in the utility model.

[0018] Figure 3 It is a side view of the utility model.

[0019] Figure 4It is a schematic diagram of the utility model for reflecting a spray pipe group and a hot oil pipe group.

[0020] In the figure: 1. Cooling water pool; 11. Cooling tower; 12. Oil inlet pipe; 13. Oil return pipe; 2. Hot oil pipe group; 21. Oil distribution horizontal pipe; 22. Branch pipe; 23. Oil collection horizontal pipe; 3. Water cooling assembly; 31. Water pump; 32. Water pipe; 33. Spray pipe group; 4. Air cooling assembly; 41. Negative pressure fan; 42. Heat sink plate; 43. Connecting rod; 5. Convection stirring assembly; 51. Screw twist rod; 52. Drive motor. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings.

[0022] The utility model discloses a large oil pool cold and hot circulating water exchange cooling system.

[0023] Reference Figures 1 to 3 A large oil pool hot and cold circulating water exchange cooling system comprises an oil pool, a cooling water pool 1, a water cooling component 3 and an air cooling component 4; a cooling tower 11 is arranged in the cooling water pool 1, a hot oil pipe group 2 is installed in the cooling tower 11, an oil inlet pipe 12 and an oil return pipe 13 are connected between the oil pool and the hot oil pipe group 2, and an oil pump is installed on the oil inlet pipe 12 and the oil return pipe 13;

[0024] Reference Figure 2 and Figure 3 , a water cooling component 3 and an air cooling component 4 are arranged on the cooling tower 11;

[0025] The water cooling assembly 3 includes a water delivery pump 31, a water delivery pipe 32 and a spray pipe group 33. Cooling water is stored in the cooling water pool 1. One end of the water delivery pipe 32 is connected to the cooling water pool 1, and the other end is connected to the spray pipe group 33. The water delivery pump 31 is connected to the water delivery pipe 32, and the spray pipe group 33 is located at the top of the hot oil pipe group 2.

[0026] The air cooling assembly 4 includes a water collector and a negative pressure fan 41. The water collector is installed in the cooling tower 11 and is located at the top of the spray pipe group 33. In this embodiment, two negative pressure fans 41 are provided and the two negative pressure fans 41 are installed at the top of the cooling tower 11.

[0027] The hot oil in the oil pool is transported to the hot oil pipe group 2 through the oil inlet pipe 12 under the action of the oil pump. At this time, the water pump 31 transports the cold water in the cooling water pool 1 to the spray pipe group 33 through the water pipe 32. The water is sprayed on the surface of the hot oil pipe group 2 through the spray pipe group 33. The two exchange heat to achieve water cooling of the hot oil in the hot oil pipe group 2. At the same time, the negative pressure fan 41 performs suction to accelerate the gas flow rate in the cooling tower 11, speed up the heat transfer between the air and the hot oil pipe, and quickly discharge the heat to the outside; in addition, the steam generated by the heat exchange between water and hot oil can also be quickly discharged through the negative pressure fan 41, effectively improving the cooling efficiency.

[0028] Reference Figures 2 to 4 The hot oil pipe group 2 includes an oil distribution transverse pipe 21, a plurality of branch pipes 22 and an oil collection transverse pipe 23. The end of the oil inlet pipe 12 away from the oil pool is connected to the oil distribution transverse pipe 21. One end of the plurality of branch pipes 22 is connected to the oil distribution transverse pipe 21, and the other end is connected to the oil collection transverse pipe 23. The oil collection transverse pipe 23 is connected to the end of the return oil pipe 13 away from the oil pool. The branch pipes 22 are coiled in an "S" shape in the height direction. The hot oil is dispersed into each branch pipe 22 through the oil distribution transverse pipe 21, and is discharged back to the oil pool through the oil collection transverse pipe 23 after the branch pipes 22 cool down. The design of the plurality of branch pipes 22 coiled in an "S" shape in the height direction can effectively increase the heat exchange area between the hot oil and the external cooling water and air, thereby improving the cooling speed.

[0029] The spray pipe group 33 includes horizontal pipes and vertical pipes that are vertically interlaced and connected to each other, and a plurality of nozzles are connected to the bottom of the horizontal pipes and the vertical pipes. The design of the spray pipe group 33 can effectively spray cooling water on the surface of the hot oil pipe group 2, ensuring that the cooling water can fully contact the surface of the hot oil pipe group 2.

[0030] The water collector includes a plurality of heat sink plates 42 and connecting rods 43. The plurality of heat sink plates 42 are arranged parallel to each other, and the heat sink plates 42 are in a "Z" shape. The connecting rods 43 penetrate the heat sink plates 42, and the two ends of the connecting rods 43 are fixedly connected to the cooling tower 11. When the cooling water exchanges heat with the hot oil in the hot oil pipe group 2, the water vapor generated by evaporation enters the channels between the plurality of heat sink plates 42, condenses into water on the heat sink plates 42, and falls back to the cooling water pool 1 for recycling. Part of the steam is sucked away and discharged by the negative pressure fan 41.

[0031] Reference Figure 1The cooling water pool 1 is provided with a convection stirring assembly 5, which includes two spiral twisted rods 51 and two drive motors 52. The two spiral twisted rods 51 are arranged in parallel and are rotatably connected to the cooling water pool 1. One end of the spiral twisted rod 51 passes through the cooling water pool 1 and is connected to the output shaft of the drive motor 52. The tangential direction of the rotation direction of the side where the two spiral twisted rods 51 are close to each other is downward. The convection stirring assembly 5 can stir the water in the cooling water pool 1. The water convection exchange between the two spiral twisted rods 51 can accelerate the cooling of the water temperature in the cooling water pool 1 and ensure the cooling effect of the cooling water on the hot oil.

[0032] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A large oil pool hot and cold circulating water exchange cooling system, characterized by: It comprises an oil pool, a cooling water pool (1), a water cooling component (3) and an air cooling component (4); A cooling tower (11) is arranged in the cooling water pool (1), a hot oil pipe group (2) is installed in the cooling tower (11), an oil inlet pipe (12) and an oil return pipe (13) are connected between the oil pool and the hot oil pipe group (2), and an oil pump is installed on both the oil inlet pipe (12) and the oil return pipe (13); The cooling tower (11) is provided with a water cooling component (3) and an air cooling component (4); The water cooling assembly (3) comprises a water delivery pump (31), a water delivery pipe (32) and a spray pipe group (33); cooling water is stored in the cooling water pool (1); one end of the water delivery pipe (32) is connected to the cooling water pool (1), and the other end is connected to the spray pipe group (33); the water delivery pump (31) is connected to the water delivery pipe (32); and the spray pipe group (33) is located at the top of the hot oil pipe group (2); The air cooling component (4) comprises a water collector and a negative pressure fan (41); the water collector is installed in the cooling tower (11) and is located at the top of the spray pipe group (33); and the negative pressure fan (41) is installed at the top of the cooling tower (11).

2. A large oil pool hot and cold circulating water exchange cooling system according to claim 1, characterized in that: The hot oil pipe group (2) comprises an oil distribution transverse pipe (21), a plurality of branch pipes (22) and an oil collection transverse pipe (23); one end of the oil inlet pipe (12) away from the oil pool is connected to the oil distribution transverse pipe (21); one end of the plurality of branch pipes (22) is connected to the oil distribution transverse pipe (21) and the other end is connected to the oil collection transverse pipe (23); the oil collection transverse pipe (23) is connected to one end of the oil return pipe (13) away from the oil pool; the branch pipes (22) are coiled in an "S" shape in the height direction.

3. A large oil pool hot and cold circulating water exchange cooling system according to claim 1, characterized in that: The spray pipe group (33) comprises transverse pipes and longitudinal pipes which are vertically interlaced and connected to each other, and the bottoms of the transverse pipes and longitudinal pipes are connected to a plurality of nozzles.

4. A large oil pool hot and cold circulating water exchange and cooling system according to any one of claims 1 to 3, characterized in that: The water collector comprises a plurality of heat sink plates (42) and connecting rods (43); the plurality of heat sink plates (42) are arranged parallel to each other; the heat sink plates (42) are in a "Z" shape; the connecting rods (43) are passed through each heat sink plate (42); and both ends of the connecting rods (43) are fixedly connected to the cooling tower frame (11).

5. A large oil pool hot and cold circulating water exchange cooling system according to claim 4, characterized in that: A convection stirring assembly (5) is arranged in the cooling water pool (1), and the convection stirring assembly (5) comprises two spiral twisted rods (51) and two driving motors (52). The two spiral twisted rods (51) are arranged in parallel and are rotatably connected in the cooling water pool (1). One end of the spiral twisted rod (51) passes through the cooling water pool (1) and is connected to the output shaft of the driving motor (52). The tangent direction of the rotation direction of the side where the two spiral twisted rods (51) are close to each other is downward.

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