Heat exchange structure for high-pressure liquid oxygen pump of air separation device

Abstract

The utility model discloses a heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit, which comprises a base, a flow guide mechanism is arranged in the middle of the upper end in the base, the upper end of the base is detachably connected with a protective cover, and a refrigeration mechanism is arranged on one side of the protective cover. The heat exchange structure can be additionally arranged on the high-pressure liquid oxygen pump of the air separation unit, and heat can be quickly exchanged for the high-pressure liquid oxygen pump of the air separation unit when the high-pressure liquid oxygen pump of the air separation unit is at high temperature, so that the heat exchange effect and efficiency of the high-pressure liquid oxygen pump of the air separation unit can be improved, and the high-temperature damage of the high-pressure liquid oxygen pump of the air separation unit during operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange for liquid oxygen pumps, in particular to a heat exchange structure for a high-pressure liquid oxygen pump of an air separation device. Background Art

[0002] The air separation unit is a device used to separate the various component gases in the air and produce oxygen, nitrogen and argon. The high-pressure liquid oxygen pump is used to transport the separated liquid oxygen during the gas separation process of the air separation unit, so that the liquid oxygen can be quickly transported to the corresponding storage device. The high-pressure liquid oxygen pump of the air separation unit will generate a lot of heat during operation, and the inability to quickly dissipate the heat will affect the stability of the high-pressure liquid oxygen pump of the air separation unit during operation.

[0003] Most of the existing high-pressure liquid oxygen pumps in air separation units do not have their own heat exchange structure. When the high-pressure liquid oxygen pumps in the air separation unit operate at high speed, they cannot quickly exchange heat for themselves, thereby reducing the heat exchange effect and efficiency of the high-pressure liquid oxygen pumps in the air separation unit, so improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem that most of the existing high-pressure liquid oxygen pumps of air separation devices do not have a heat exchange structure, and the high temperature generated by themselves during high-speed operation cannot be quickly exchanged, thereby reducing the heat exchange effect and efficiency of the high-pressure liquid oxygen pump of the air separation device, and a heat exchange structure for a high-pressure liquid oxygen pump of an air separation device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat exchange structure for a high-pressure liquid oxygen pump of an air separation device comprises a base, a flow guide mechanism is provided in the middle of the upper end of the base, a protective cover is detachably connected to the upper end of the base, and a refrigeration mechanism is provided on one side of the protective cover;

[0007] A pump body is provided at the upper end of the base, and the pump body is located in the protective cover. A heat conduction plate is provided on the refrigeration mechanism, and the heat conduction plate is fixedly installed on an inner wall of one side of the protective cover. Two rotating shafts are provided on the guide mechanism, and the lower ends of the two rotating shafts are rotatably connected to the two sides of the lower end in the base respectively. Fan blades are provided at the upper ends of the two rotating shafts. A plurality of first ventilation holes are opened at the upper end of the base, and the plurality of first ventilation holes are located together in the protective cover.

[0008] Preferably, in order to provide power for the rotation of the two fan blades, the air guide mechanism includes a motor fixedly installed in the middle of the upper end of the base, the end of the output shaft of the motor is fixedly connected to a driving wheel, and the two sides of the driving wheel are commonly connected to two transmission wheels through a transmission belt friction transmission, and the two transmission wheels are respectively fixedly sleeved on the lower ends of the two rotating shafts.

[0009] Preferably, in order to transport the refrigerated coolant into the thermal conductive plate, the refrigeration mechanism includes a refrigeration device fixedly mounted on one side of the protective cover, connecting pipes are provided on both sides of the lower end of the refrigeration device, the lower ends of the two connecting pipes pass through one side of the protective cover and are provided on the thermal conductive plate, a water pump is provided on one of the connecting pipes, and the water pump is fixedly connected to one side of the protective cover.

[0010] Preferably, in order to keep the inside of the base ventilated, a plurality of second ventilation holes are provided at equal intervals at the lower end of the base, and a dustproof net is provided at the lower ends of the plurality of second ventilation holes, and the dustproof net is provided at the lower end of the base.

[0011] Preferably, in order to facilitate the movement and stable support of the base, a first groove is opened at the four corners of the lower end of the base, and universal wheels are arranged in the four first grooves. A second groove is opened at the four corners of the lower end of the base, and support screws are fixed in the four second grooves. The lower ends of the four support screws are threaded with gaskets.

[0012] Preferably, in order to facilitate pulling the base when the base moves, threaded sleeves are fixed on both sides of the base, a connecting screw is threadedly sleeved in one of the threaded sleeves, and a ring is fixed at one end of the connecting screw.

[0013] Preferably, in order to disassemble and assemble the protective cover from the base, two connecting blocks are fixed to the lower ends of both sides of the protective cover, screws are provided through the middle of the four connecting blocks, the lower ends of the four screws are respectively fixedly connected to the four corners of the upper end of the base, the upper ends of the four screws are threaded with nuts, and the lower ends of the four nuts respectively abut against the upper ends of the four connecting blocks.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the use of protective covers and refrigeration mechanisms, a heat exchange structure can be added to the high-pressure liquid oxygen pump of the air separation unit. When the high-pressure liquid oxygen pump of the air separation unit operates at high speed and generates high temperature, the refrigeration mechanism will cause the temperature conducting plate to generate cold air, and the cold air emitted by the temperature conducting plate will be wrapped inside the protective cover. The cold air in the protective cover can quickly exchange heat with the high-pressure liquid oxygen pump of the air separation unit, thereby effectively improving the heat exchange effect and efficiency of the high-pressure liquid oxygen pump of the air separation unit, and avoiding high-temperature damage to the high-pressure liquid oxygen pump of the air separation unit during operation;

[0016] 2. Through the use of the guide mechanism, the cold air in the protective cover can be blown, so that the cold air in the protective cover can flow quickly inside it. The flow of cold air can improve the heat exchange effect and efficiency of the high-pressure liquid oxygen pump of the air separation unit;

[0017] To sum up, the utility model can add a heat exchange structure to the high-pressure liquid oxygen pump of the air separation unit. When the high-pressure liquid oxygen pump of the air separation unit is at a high temperature, the high-pressure liquid oxygen pump of the air separation unit can be quickly exchanged with heat, thereby improving the heat exchange effect and efficiency of the high-pressure liquid oxygen pump of the air separation unit and avoiding high-temperature damage of the high-pressure liquid oxygen pump of the air separation unit during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a connection structure diagram of a heat exchange structure for a high-pressure liquid oxygen pump in an air separation unit proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a base of a heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit proposed by the utility model;

[0020] Figure 3 This is an enlarged view of point A of a heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit proposed by the utility model;

[0021] Figure 4 This is an enlarged view of point B of a heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit proposed by the utility model.

[0022] In the figure: 1 base, 2 pump body, 3 protective cover, 4 connecting block, 5 screw, 6 nut, 7 refrigeration device, 8 connecting pipe, 9 temperature conductive plate, 10 water pump, 11 motor, 12 driving wheel, 13 transmission belt, 14 driving wheel, 15 rotating shaft, 16 fan blade, 17 dust net, 18 threaded sleeve, 19 connecting screw, 20 ring, 21 universal wheel, 22 supporting screw, 23 cushion. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4A heat exchange structure for a high-pressure liquid oxygen pump of an air separation device includes a base 1. A pump body 2 is arranged on the upper end of the base 1. The base 1 is used to carry the pump body 2. The movement of the base 1 can drive the pump body 2 to move. The pump body 2 is connected to supporting parts for stable operation. The program can be set for automatic operation. The pump body 2 is a device for transporting liquid oxygen on a high-pressure separation device. The separated liquid oxygen can be transported to a designated position through the pump body 2. A protective cover 3 is detachably connected to the upper end of the base 1. The pump body 2 is located in the protective cover 3. The pump body 2 can be protected by the protective cover 3. At the same time, the protective cover 3 can prevent the cold air inside it from diffusing too quickly. So that the cold air in the protective cover 3 can continuously exchange heat with the pump body 2, two connecting blocks 4 are fixed to the lower ends of both sides of the protective cover 3, and screws 5 are arranged through the middle of the four connecting blocks 4. The lower ends of the four screws 5 are respectively fixedly connected to the four corners of the upper end of the base 1, and the upper ends of the four screws 5 are threaded with nuts 6, and the lower ends of the four nuts 6 are respectively in contact with the upper ends of the four connecting blocks 4. The four connecting blocks 4 are integrally formed with the protective cover 3, and the connecting blocks 4 can be fixed to the upper end of the base 1 through the structure of the screws 5 and the nuts 6, and the protective cover 3 can be fixed to the upper end of the base 1 by fixing the connecting blocks 4 to the upper end of the base 1.

[0025] Reference Figure 2 A refrigeration mechanism is provided on one side of the protective cover 3, and a thermal conductive sheet 9 is provided on the refrigeration mechanism. The thermal conductive sheet 9 is fixedly installed on the inner wall of one side of the protective cover 3. The cooling liquid can be transported into the thermal conductive sheet 9 through the refrigeration mechanism. The cooling liquid enters the thermal conductive sheet 9 so that cold air can be emitted from its surface. The cold air will exchange heat with the pump body 2 in the protective cover 3 to avoid high-temperature damage to the pump body 2 during operation. The refrigeration mechanism includes a refrigeration device 7 fixedly installed on one side of the protective cover 3. Connecting pipes 8 are provided on both sides of the lower end of the refrigeration device 7. The lower ends of the two connecting pipes 8 pass through one side of the protective cover 3 and are arranged on the thermal conductive sheet 9. The refrigeration device 7 and the matching The components are connected to facilitate stable operation, and the program can be set for automatic operation. The operation of the refrigeration device 7 will cool the coolant, and the cooled coolant will be transported to the thermal conductive plate 9 through one of the connecting pipes 8. The coolant in the thermal conductive plate 9 will be transported to the refrigeration device 7 through another connecting pipe 8 for circulating cooling. A water pump 10 is provided on one of the connecting pipes 8, and the water pump 10 is fixedly connected to one side of the protective cover 3. The water pump 10 is connected to the supporting components to facilitate stable operation. The program can be set for automatic operation. The operation of the water pump 10 will quickly transport the coolant in one of the connecting pipes 8 to the thermal conductive plate 9.

[0026] Reference Figure 2The upper end of the base 1 is provided with a plurality of first ventilation holes, and the plurality of first ventilation holes are jointly located in the protective cover 3. The air in the base 1 can be transported into the protective cover 3 through the first ventilation holes, so that the cold air in the protective cover 3 can flow quickly, thereby improving the heat exchange effect and efficiency of the cold air in the protective cover 3 to the pump body 2. A guide mechanism is provided in the middle part of the upper end of the base 1, and the guide mechanism is provided with two rotating shafts 15. The lower ends of the two rotating shafts 15 are respectively rotatably connected to the two sides of the lower end in the base 1, and the upper ends of the two rotating shafts 15 are respectively provided with fan blades 16. The operation of the guide mechanism can drive the two rotating shafts 15 to rotate, and the rotation of the two rotating shafts 15 will drive the two fan blades 16 to rotate. The rotation of the two fan blades 16 will generate wind force, and the wind will enter the protective cover 3 through the first ventilation holes, so that the cold air in the protective cover 3 can flow, so that the cold air can evenly exchange heat with the pump body 2 in the protective cover 3, effectively improving the heat exchange effect and efficiency of the pump body 2.

[0027] Reference Figure 2 The guide mechanism includes a motor 11 fixedly installed in the middle of the upper end of the base 1, and the end of the output shaft of the motor 11 is fixedly connected to a driving wheel 12. Both sides of the driving wheel 12 are connected to two driving wheels 14 through a transmission belt 13 friction transmission. The two driving wheels 14 are respectively fixedly sleeved on the lower ends of the two rotating shafts 15. The motor 11 is connected with supporting components for stable operation and can be programmed for automatic operation. The operation of the motor 11 will drive the driving wheel 12 to rotate, and the driving wheel 12 will drive the two driving wheels 14 to rotate through the friction of the transmission belt 13. The two driving wheels 14 will drive the two rotating shafts 15 to rotate. The rotation of the two rotating shafts 15 will drive the two fan blades 16 to rotate. The rotation of the two fan blades 16 will generate wind force, and the wind will enter the protective cover 3 through the first ventilation hole, so that the cold air in the protective cover 3 flows, so that the cold air can evenly exchange heat with the pump body 2 in the protective cover 3, effectively improving the heat exchange effect and efficiency of the pump body 2.

[0028] Reference Figure 2 A plurality of second ventilation holes are provided at equal intervals at the lower end of the base 1, and a dustproof net 17 is provided at the lower ends of the plurality of second ventilation holes. The dustproof net 17 is provided at the lower end of the base 1, and the air outside the base 1 can enter the base 1 through the second ventilation holes, so that the fan blades 16 can suck the external air into the base 1 when rotating. The dustproof net 17 is used to perform dustproof treatment on the second ventilation holes to prevent dust from entering the base 1 through the second ventilation holes.

[0029] Reference Figure 1-4, the four corners of the lower end of the base 1 are provided with first grooves, and universal wheels 21 are arranged in the four first grooves. The first grooves are used to carry the universal wheels 21. The first grooves can prevent the universal wheels 21 from supporting the base 1 too high, so that the base 1 can be more stable when moving. The universal wheels 21 are wheels that can change the direction at will. The universal wheels 21 can make the base 1 more convenient to move. The four corners of the lower end of the base 1 are provided with second grooves, and support screws 22 are fixed in the four second grooves. The lower ends of the four support screws 22 are threadedly sleeved with cushions 23. The surface of the support screw 22 is provided with an external thread, and the cushion 23 is provided with an internal thread. When the base 1 does not need to move, the cushion 23 can be rotated to make it drop on the support screw 22 and contact the ground. 23 contacts the ground to support the base 1 and prevent the base 1 from moving at will. Threaded sleeves 18 are fixed on both sides of the base 1. A connecting screw 19 is threadedly sleeved in one of the threaded sleeves 18. A ring 20 is fixed at one end of the connecting screw 19. The threaded sleeve 18 is a component with an internal thread. The surface of the connecting screw 19 is provided with an external thread. The connecting screw 19 can be fixedly installed in the threaded sleeve 18 by rotating it. The connecting screw 19 is fixed in the threaded sleeve 18 so that the ring 20 can be fixedly connected to the fixed threaded sleeve 18. The hook and the rope can be connected to the ring 20. When the base 1 and the pump body 2 are moved, the base 1 can be pulled to move by connecting the rope and the hook to the ring 20, which can make the base 1 and the pump body 2 more convenient to move.

[0030] In the utility model, when in use: the supporting control equipment controls the operation of the refrigeration device 7 and the water pump 10, the refrigeration device 7 cools the liquid inside it and then transports it to one of the connecting pipes 8, the operation of the water pump 10 will quickly transport the coolant in one of the connecting pipes 8 to the thermal conductive plate 9, and the thermal conductive plate 9 will emit the cold air of the coolant inside it to the protective cover 3, the supporting control equipment controls the operation of the motor 11, the motor 11 drives the driving wheel 12 to rotate, the driving wheel 12 drives the two driving wheels 14 to rotate through the friction of the transmission belt 13, the two driving wheels 14 drive the two rotating shafts 15 to rotate, the two rotating shafts 15 drive the two fan blades 16 to rotate, the rotation of the two fan blades 16 will generate wind, the wind will enter the protective cover 3 through the first ventilation hole, so that the cold air in the protective cover 3 can be diverted, so that the cold air can quickly perform heat exchange treatment on the pump body 2 in the protective cover 3.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit, comprising a base (1), characterized in that: A flow guide mechanism is provided in the middle of the upper end of the base (1); a protective cover (3) is detachably connected to the upper end of the base (1); and a refrigeration mechanism is provided on one side of the protective cover (3); A pump body (2) is arranged at the upper end of the base (1), and the pump body (2) is located in the protective cover (3). A heat conducting plate (9) is arranged on the refrigeration mechanism, and the heat conducting plate (9) is fixedly mounted on an inner wall of one side of the protective cover (3). Two rotating shafts (15) are arranged on the flow guiding mechanism, and the lower ends of the two rotating shafts (15) are respectively rotatably connected to the two sides of the lower end in the base (1), and the upper ends of the two rotating shafts (15) are both provided with fan blades (16). A plurality of first ventilation holes are opened at the upper end of the base (1), and the plurality of first ventilation holes are located together in the protective cover (3).

2. A heat exchange structure for a high-pressure liquid oxygen pump in an air separation unit according to claim 1, characterized in that: The flow guide mechanism comprises a motor (11) fixedly mounted in the middle of the upper end of the base (1); the end of the output shaft of the motor (11) is fixedly connected to a driving wheel (12); two sides of the driving wheel (12) are connected to two driving wheels (14) via a driving belt (13) through friction transmission; the two driving wheels (14) are respectively fixedly sleeved on the lower ends of two rotating shafts (15).

3. A heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit according to claim 1, characterized in that: The refrigeration mechanism comprises a refrigeration device (7) fixedly mounted on one side of the protective cover (3), connecting pipes (8) are arranged on both sides of the lower end of the refrigeration device (7), the lower ends of the two connecting pipes (8) pass through one side of the protective cover (3) and are arranged on a thermal conductive plate (9), a water pump (10) is arranged on one of the connecting pipes (8), and the water pump (10) is fixedly connected to one side of the protective cover (3).

4. The heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit according to claim 1, characterized in that: The lower end of the base (1) is provided with a plurality of second ventilation holes at equal intervals, and the lower ends of the plurality of second ventilation holes are provided with a dustproof net (17) which is arranged at the lower end of the base (1).

5. The heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit according to claim 1, characterized in that: The four corners of the lower end of the base (1) are each provided with a first groove, and a universal wheel (21) is disposed in each of the four first grooves; the four corners of the lower end of the base (1) are each provided with a second groove, and a support screw (22) is fixed in each of the four second grooves; and the lower ends of the four support screws (22) are each threadedly sleeved with a cushion (23).

6. The heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit according to claim 1, characterized in that: Threaded sleeves (18) are fixed on both sides of the base (1), a connecting screw (19) is threadedly sleeved in one of the threaded sleeves (18), and a ring (20) is fixed at one end of the connecting screw (19).

7. The heat exchange structure for a high-pressure liquid oxygen pump of an air separation unit according to claim 1, characterized in that: Two connecting blocks (4) are fixed to the lower ends of both sides of the protective cover (3); screw rods (5) are provided through the middle of the four connecting blocks (4); the lower ends of the four screw rods (5) are respectively fixedly connected to the four corners of the upper end of the base (1); nuts (6) are threadedly sleeved on the upper ends of the four screw rods (5); and the lower ends of the four nuts (6) are respectively in contact with the upper ends of the four connecting blocks (4).

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