High-temperature-resistant displacement pump

Abstract

The invention relates to the field of displacement pumps, in particular to a high-temperature-resistant displacement pump which comprises a base, a motor, a pump machine body, a cooling mechanism and a transmission mechanism, the motor, the pump machine body, the cooling mechanism and the transmission mechanism are arranged on the base, the motor, the pump machine body, the cooling mechanism and a transmission assembly are detachably connected to the base, and when the motor is started, the pump machine body can be driven to rotate; and meanwhile, under the action of the transmission mechanism, the cooling mechanism can be driven to cool the pump machine body, so that the risk that the interior of the pump machine body is easily damaged when the temperature of a conveyed medium is high is reduced, and the possibility that the displacement pump is damaged due to heat accumulation in the working process of the displacement pump is reduced to a certain extent.

Description

Technical Field

[0001] The present application relates to the field of positive displacement pumps, and in particular to a high temperature resistant positive displacement pump. Background Art

[0002] Positive displacement pump is a common type of pump that uses the principle of centrifugal force to transport liquid. Its working principle is that the positive displacement pump generates centrifugal force through the rotating impeller, sucks the liquid from the suction port of the pump, and then accelerates the liquid and throws it out through the high-speed rotation of the impeller, thereby increasing the pressure and speed of the liquid. Positive displacement pump is mainly composed of pump body, impeller, pump shaft, bearing, sealing device and drive device (such as motor). Positive displacement pump is widely used in many fields such as industry, agriculture, urban water supply, sewage treatment, petrochemical industry, shipbuilding, etc., for transporting clean water, liquid containing solid particles, chemically corrosive liquid, etc.

[0003] At the same time, with the rapid development of my country's new energy industry, positive displacement pumps have gradually been applied in the field of new energy. For example, new energy vehicle thermal management systems, hydrogen energy storage and transportation, heat pump technology, hydrogen energy pipeline transportation, and intelligent positive displacement pumps are all applications of positive displacement pumps in the field of new energy. The existing Chinese patent "A horizontal positive displacement pump suitable for high-corrosion and multi-impurity working conditions" with the publication number "CN104653469A" improves the material of the positive displacement pump device by using ultra-high molecular weight polyethylene, which to a certain extent solves the problem of easy corrosion of positive displacement pumps in related technologies.

[0004] However, in the related art, the displacement pump usually generates heat during operation. There are various reasons for the heat generation of the displacement pump, such as the outlet valve not opening for a long time after the displacement pump is started, the pump inlet or outlet section is blocked, there is air inside the pump body, the pump water temperature is too high, the pump shaft and bearings have quality problems or poor lubrication, air adhesion and bearing wear, as well as the friction between the impeller and the pump casing and the material, and the liquid in the pump body return oil pipe is not smooth, which can cause the displacement pump to overheat. Therefore, how to reduce the possibility of damage to the displacement pump due to heat accumulation during the operation of the displacement pump, and then increase the service life of the displacement pump has become a problem that needs to be solved urgently for the displacement pump at this stage. Summary of the invention

[0005] In order to reduce the possibility of damage to the displacement pump due to heat accumulation during the operation of the displacement pump, thereby increasing the service life of the displacement pump, the present application provides a high temperature resistant displacement pump.

[0006] The present application provides a high temperature resistant positive displacement pump adopting the following technical solution: A high temperature resistant positive displacement pump, comprising: A base, on which a motor and a pump body are arranged, wherein the motor and the pump body are both detachably connected to the base, and a driving shaft of the motor is coaxially arranged with a rotating shaft of the pump body; A cooling mechanism, wherein the cooling component includes a water cooling component and an air cooling component, wherein the water cooling component is used to cool the pump body by water, and the air cooling component is used to cool the pump body by air; and A transmission mechanism is arranged between the motor and the cooling mechanism to achieve cooling of the pump body.

[0007] By adopting the above technical scheme, the high-temperature resistant positive displacement pump of the present application is configured as a combination of a base, a cooling mechanism and a transmission mechanism. A motor and a pump body are arranged on the base. When the motor drives the pump body to work, the cooling mechanism is started synchronously under the action of the transmission mechanism to achieve air cooling and water cooling of the pump body. The present application reduces to a certain extent the possibility of damage to the positive displacement pump due to heat accumulation during the operation of the positive displacement pump.

[0008] Optionally, the water cooling assembly includes a water cooling pipe and a water cooling box. The water cooling pipe is coiled around the outside of the pump body. The water cooling pipe passes through the water cooling box. A driving component is rotatably connected inside the water cooling box. The water cooling pipe and the box are filled with cooling liquid. The driving component can drive the cooling liquid to circulate in the water cooling box and the water cooling pipe.

[0009] By adopting the above technical solution, the water-cooling pipe is tightly coiled around the outside of the pump body, which increases the heat exchange area. Together with the driving parts in the water-cooling box, heat can be more efficiently transferred from the pump body to the water-cooling liquid, achieving rapid cooling. The water-cooling liquid circulates between the water-cooling box and the water-cooling pipe, ensuring continuous and uniform heat conduction, avoiding local overheating, and improving the stability and reliability of the pump.

[0010] Optionally, the driving member is a gear pump, which includes a first gear and a second gear, wherein the first gear and the second gear are both rotatably connected to the inner wall of the water cooling box, and the gear shaft of the first gear passes through the water cooling box and is connected to the transmission mechanism.

[0011] By adopting the above technical solution, the gear pump is in direct contact with the water-cooling liquid circulating in the water-cooling component, thereby achieving efficient energy transfer and heat distribution, and the gear pump can make the water-cooling liquid in the water-cooling component flow in one direction, further enhancing the water cooling efficiency of the water-cooling component.

[0012] Optionally, a liquid filling port is provided on the water cooling box.

[0013] By adopting the above technical solution, it is convenient to replace the water cooling liquid.

[0014] Optionally, the air cooling component includes an air cooling fan, and the air cooling fan is fixedly sleeved on the gear shaft of the first gear.

[0015] By adopting the above technical solution, the air-cooling fan is directly fixedly mounted on the gear shaft of the first gear. This design synchronizes the rotation of the air-cooling fan with the operation of the gear pump, ensuring efficient energy utilization and optimization of spatial layout.

[0016] Optionally, a water-stop sealing ring is provided between the air-cooling fan and the gear shaft of the first gear.

[0017] By adopting the above technical solution and setting the water-stop sealing ring, the possibility of overflow of the water-cooling liquid is effectively reduced, thereby ensuring the stable operation of the cooling mechanism.

[0018] Optionally, the transmission mechanism includes a transmission frame, a first transmission gear, a second transmission gear and a transmission assembly, the transmission frame is fixedly connected to the base, the first transmission gear and the second transmission gear are both bevel gears, the first transmission gear is coaxially arranged with the transmission shaft of the motor, the second transmission gear is rotatably connected to the transmission frame, the first transmission gear is meshed with the second transmission gear, one end of the transmission assembly is connected to the second transmission gear, and the other end is connected to the cooling mechanism.

[0019] By adopting the above technical solution, the first transmission gear is coaxially arranged with the transmission shaft of the motor and meshes with the second transmission gear, thereby achieving efficient and stable torque transmission, and the bevel gear can effectively realize the direction conversion, so that the transmission mechanism of the present application can be better arranged on the base.

[0020] Optionally, the transmission assembly includes a transmission sleeve and a transmission belt, and two transmission sleeves are provided. The two transmission sleeves are respectively sleeved on the gear shaft of the first gear and the gear shaft of the second transmission gear, and the transmission platform is simultaneously sleeved on the two transmission sleeves.

[0021] By adopting the above technical solution, flexible and stable torque transmission is achieved. This configuration allows the system to achieve an efficient transmission ratio in a compact space. At the same time, the elasticity of the belt helps to absorb shock and vibration and reduce the noise and wear that may be caused by direct gear meshing.

[0022] Optionally, anti-slip grooves are provided on a surface of the conveyor belt that contacts the two transmission sleeves.

[0023] By adopting the above technical solution, the provision of anti-slip patterns further improves the stability of the transmission assembly.

[0024] Optionally, a coupling is further provided between the motor and the pump body.

[0025] By adopting the above technical solution and the setting of the coupling, it is possible to effectively ensure that the motor effectively drives the pump body, and it is also more convenient for repair and maintenance.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By configuring the high temperature resistant positive displacement pump of the present application as a combination of a base, a cooling mechanism and a transmission mechanism, a motor and a pump body are arranged on the base. When the motor drives the pump body to work, the cooling mechanism is synchronously started under the action of the transmission mechanism, so that the pump body is cooled by air and water. The present application reduces the possibility of damage to the positive displacement pump due to heat accumulation during the working process of the positive displacement pump to a certain extent; 2. The gear pump is in direct contact with the water-cooling liquid circulating in the water-cooling assembly, achieving efficient energy transfer and heat distribution. The gear pump can make the water-cooling liquid in the water-cooling assembly flow in one direction, further enhancing the water cooling efficiency of the water-cooling assembly. 3. The transmission assembly is set as a combination of a transmission sleeve and a transmission belt, which realizes flexible and stable torque transmission. This configuration allows the system to achieve an efficient transmission ratio in a compact space. At the same time, the elasticity of the belt helps to absorb shock and vibration and reduce the noise and wear that may be caused by direct gear meshing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a high temperature resistant positive displacement pump according to an embodiment of the present application.

[0028] Figure 2 This is a detailed display diagram of the air-cooling fan in a high-temperature resistant positive displacement pump in an embodiment of the present application.

[0029] Figure 3 This is a detailed display diagram of a driving component in a high-temperature resistant positive displacement pump according to an embodiment of the present application.

[0030] Description of reference numerals: 1. Base; 2. Motor; 3. Pump body; 4. Cooling mechanism; 41. Water cooling assembly; 411. Water cooling pipe; 412. Water cooling box; 42. Air cooling assembly; 421. Air cooling fan; 5. Transmission mechanism; 51. Transmission frame; 52. First transmission gear; 53. Second transmission gear; 54. Transmission assembly; 541. Transmission sleeve; 542. Transmission belt; 6. Driving member; 61. First gear; 62. Second gear; 7. Liquid filling port; 8. Water-stop sealing ring; 9. Coupling. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a high temperature resistant positive displacement pump.

[0033] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] It should also be noted that in the embodiments of the present application, the internal structure of the displacement pump is not described in detail. For the internal structure of the displacement pump, reference can be made to the patents previously applied for by the present application or existing patents, or existing physical displacement pumps. This is relatively easy to understand for those skilled in the art. Therefore, in the embodiments of the present application, the internal structure of the displacement pump is not described or displayed, and it cannot be understood as a limitation of the present invention.

[0035] Reference Figure 1 A high temperature resistant positive displacement pump comprises a base 1 and a motor 2 and a pump body 3, a cooling mechanism 4, and a transmission mechanism 5 arranged on the base 1, and the motor 2, the pump body 3, the cooling mechanism 4 and the transmission assembly 54 are all detachably connected to the base 1. When the motor 2 is started, it can drive the pump body 3 to rotate. At the same time, under the action of the transmission mechanism 5, the cooling mechanism 4 can be driven to cool the pump body 3, thereby reducing the risk of easy damage to the inside of the pump body 3 when the temperature of the transported medium is high. The present application reduces the possibility of damage to the positive displacement pump due to heat accumulation during the operation of the positive displacement pump to a certain extent.

[0036] Specifically, in the embodiment of the present application, the motor 2 and the pump body 3 can be detachably connected to the base 1, and the driving shaft of the motor 2 is coaxially arranged with the rotating shaft of the pump body 3. That is to say, the motor 2 and the pump body 3 can be combined according to different models selected according to different needs, thereby meeting different requirements.

[0037] Furthermore, a coupling 9 is provided between the motor 2 and the pump body 3 .

[0038] The arrangement of the coupling 9 can effectively ensure that the motor 2 effectively drives the pump body 3, and is also more convenient for repair and maintenance.

[0039] Specifically, refer to Figure 1 and Figure 2The cooling component includes a water cooling component 41 and an air cooling component 42. The water cooling component 41 is used to cool the pump body 3 by water, and the air cooling component 42 is used to cool the pump body 3 by air.

[0040] Among them, the water cooling component 41 includes a water cooling pipe 411 and a water cooling box 412. The water cooling pipe 411 is coiled around the outside of the pump body 3. The water cooling pipe 411 passes through the water cooling box 412. A driving component 6 is rotatably connected inside the water cooling box 412. The water cooling pipe 411 and the box are filled with cooling liquid. The driving component 6 can drive the cooling liquid to circulate in the water cooling box 412 and the water cooling pipe 411.

[0041] The component uses a water-cooling tube 411 tightly coiled around the outside of the pump body 3 and passing through a water-cooling box 412, which is filled with water-cooling liquid. The water-cooling liquid circulates in the tube and the box through the driving member 6. This design not only improves the heat exchange efficiency and ensures the stable operation of the pump in a high-temperature environment, but also enhances the heat dissipation capacity and reliability of the system through a dual heat dissipation mechanism - a combination of water cooling and air cooling, making the pump more adaptable and easier to maintain.

[0042] At the same time, a liquid injection port 7 is provided on the water cooling box 412. The provision of the liquid injection port 7 makes it more convenient to replace the water cooling liquid, thereby ensuring the water cooling efficiency of the water cooling assembly 41 to a certain extent.

[0043] It should be noted that in the embodiments of the present application, the water-cooling liquid is not an aqueous solution, but refers to a solution specifically used for water cooling. In the embodiments of the present application, a fluorinated liquid is used. In other embodiments, ethylene glycol, propylene glycol, etc. can also be used as the water-cooling liquid, which is also a preferred embodiment of the present application.

[0044] Further, see Figure 1 and Figure 3 The driving member 6 is a gear pump, which includes a first gear 61 and a second gear 62. The first gear 61 and the second gear 62 are both rotatably connected to the inner wall of the water cooling box 412. The gear shaft of the first gear 61 passes through the water cooling box 412 and is connected to the transmission mechanism 5.

[0045] The gear pump is used as the driving member 6, wherein the first gear 61 and the second gear 62 are rotatably connected to the inner wall of the water cooling box 412, and the gear shaft of the first gear 61 passes through the water cooling box 412 and is connected to the transmission mechanism 5. The design has the following advantages: This configuration allows the gear pump to directly contact the water-cooling liquid circulating in the water cooling system to achieve efficient energy transfer and heat distribution. At the same time, the gear pump has a compact structure, occupies a small space, is easy to maintain, and through direct connection with the transmission mechanism 5, ensures the operating efficiency and stability of the entire cooling mechanism 4, and improves the heat dissipation efficiency and working reliability of the overall system. At the same time, the gear pump can also allow the water-cooling liquid to flow in one direction, effectively ensuring the stability of the water cooling component 41 in water cooling the pump body 3.

[0046] The air cooling assembly 42 includes an air cooling fan 421 , and the air cooling fan 421 is fixedly sleeved on the gear shaft of the first gear 61 .

[0047] The innovation of the air cooling assembly 42 is that the air cooling fan 421 is directly fixedly mounted on the gear shaft of the first gear 61. This design synchronizes the rotation of the air cooling fan 421 with the operation of the gear pump, ensuring efficient energy utilization and optimization of the spatial layout. The specific advantages include: the direct drive method reduces additional transmission components, reduces system complexity and failure rate; the compact layout improves space utilization and makes the overall structure more compact; at the same time, due to the coordinated work of the air cooling fan 421 and the gear pump, the heat dissipation efficiency is enhanced, ensuring the stable operation of the pump in a high temperature environment, and improving the performance and reliability of the entire cooling mechanism 4.

[0048] Furthermore, a water-stop sealing ring 8 is provided between the air-cooling fan 421 and the gear shaft of the first gear 61 .

[0049] The provision of the water-stop sealing ring 8 effectively reduces the possibility of water-cooling liquid overflowing from the gear shaft of the first gear 61 , thereby effectively ensuring the effective operation of the air-cooling fan 421 , that is, effectively ensuring the air-cooling capacity of the air-cooling assembly 42 .

[0050] Specifically, regarding the transmission mechanism 5 , in the embodiment of the present application, the transmission mechanism 5 is disposed between the motor 2 and the cooling mechanism 4 to achieve cooling of the pump body 3 .

[0051] The transmission mechanism 5 includes a transmission frame 51, a first transmission gear 52, a second transmission gear 53 and a transmission assembly 54. The transmission frame 51 is fixedly connected to the base 1. The first transmission gear 52 and the second transmission gear 53 are both bevel gears. The first transmission gear 52 is coaxially arranged with the transmission shaft of the motor 2. The second transmission gear 53 is rotatably connected to the transmission frame 51. The first transmission gear 52 is meshed with the second transmission gear 53. One end of the transmission assembly 54 is connected to the second transmission gear 53, and the other end is connected to the cooling mechanism 4.

[0052] The design of the transmission mechanism 5 cleverly integrates the transmission frame 51, the bevel gear and the transmission assembly 54. By setting the first transmission gear 52 coaxially with the transmission shaft of the motor 2 and meshing with the second transmission gear 53, efficient and stable torque transmission is achieved. The advantages of this design are: the meshing of the bevel gears provides a larger contact area and a more uniform load distribution, thereby improving the transmission efficiency and durability; the fixed connection of the transmission frame 51 ensures the stability of the entire mechanism; at the same time, the two-end connection design of the transmission assembly 54, one end is connected to the second transmission gear 53, and the other end is connected to the cooling mechanism 4, which realizes the effective transmission and precise control of power, making the cooling process of the entire displacement pump more efficient and reliable. In addition, the coaxial setting reduces the energy loss in the transmission process and ensures the efficient operation of the entire system.

[0053] Furthermore, the transmission assembly 54 includes a transmission sleeve 541 and a transmission belt 542 . Two transmission sleeves 541 are provided. The two transmission sleeves 541 are respectively sleeved on the gear shaft of the first gear 61 and the gear shaft of the second transmission gear 53 . The transmission platform is also sleeved on the two transmission sleeves 541 .

[0054] By respectively arranging transmission sleeves 541 on the gear shafts of the first gear 61 and the second transmission gear 53, and simultaneously sleeve the transmission belt 542 on the two transmission sleeves 541, the design achieves flexible and stable torque transmission. This configuration allows the system to achieve an efficient transmission ratio in a compact space, while the elasticity of the belt helps absorb shock and vibration, and reduce the noise and wear that may be generated by direct gear meshing. In addition, the belt drive is also easy to install and maintain, and provides convenience when the transmission ratio needs to be adjusted or the transmission components need to be replaced. Overall, this solution improves the reliability of the system and the convenience of maintenance by simplifying the design.

[0055] Furthermore, the side of the conveyor belt that contacts the two transmission sleeves 541 is provided with anti-skid patterns. The anti-skid patterns are not specifically shown in the drawings of the present application specification.

[0056] The provision of the anti-slip grooves further improves the stability of the transmission assembly 54 .

[0057] The implementation principle of a high-temperature resistant positive displacement pump in an embodiment of the present application is as follows: the high-temperature resistant positive displacement pump of the present application is configured as a combination of a base 1, a cooling mechanism 4 and a transmission mechanism 5, and a motor 2 and a pump body 3 are arranged on the base 1. When the motor 2 drives the pump body 3 to work, under the action of the transmission mechanism 5, the cooling mechanism 4 is started synchronously to realize air cooling and water cooling of the pump body 3. The present application reduces to a certain extent the possibility of damage to the positive displacement pump due to heat accumulation during the operation of the positive displacement pump.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high temperature resistant positive displacement pump, characterized in that: include: A base (1) is provided with a motor (2) and a pump body (3), wherein the motor (2) and the pump body (3) are both detachably connected to the base (1), and the drive shaft of the motor (2) is coaxially arranged with the rotation shaft of the pump body (3); a cooling mechanism (4), the cooling component comprising a water cooling component (41) and an air cooling component (42), the water cooling component (41) being used to cool the pump body (3) by water, and the air cooling component (42) being used to cool the pump body (3) by air; and A transmission mechanism (5), wherein the transmission mechanism (5) is arranged between the motor (2) and the cooling mechanism (4) to achieve cooling of the pump body (3).

2. A high temperature resistant positive displacement pump according to claim 1, characterized in that: The water cooling assembly (41) comprises a water cooling pipe (411) and a water cooling box (412); the water cooling pipe (411) is coiled around the outside of the pump body (3); the water cooling pipe (411) passes through the water cooling box (412); a driving member (6) is rotatably connected inside the water cooling box (412); the water cooling pipe (411) and the box are filled with water cooling liquid; the driving member (6) is capable of driving the water cooling liquid to circulate in the water cooling box (412) and the water cooling pipe (411).

3. A high temperature resistant positive displacement pump according to claim 2, characterized in that: The driving member (6) is a gear pump, comprising a first gear (61) and a second gear (62), wherein the first gear (61) and the second gear (62) are both rotatably connected to the inner wall of the water cooling box (412), and a gear shaft of the first gear (61) passes through the water cooling box (412) and is connected to the transmission mechanism (5).

4. A high temperature resistant positive displacement pump according to claim 2, characterized in that: The water cooling box (412) is provided with a liquid injection port (7).

5. A high temperature resistant positive displacement pump according to claim 3, characterized in that: The air cooling component (42) comprises an air cooling fan (421), and the air cooling fan (421) is fixedly sleeved on the gear shaft of the first gear (61).

6. A high temperature resistant positive displacement pump according to claim 5, characterized in that: A water-stop sealing ring (8) is provided between the air-cooling fan (421) and the gear shaft of the first gear (61).

7. A high temperature resistant positive displacement pump according to claim 3, characterized in that: The transmission mechanism (5) comprises a transmission frame (51), a first transmission gear (52), a second transmission gear (53) and a transmission assembly (54); the transmission frame (51) is fixedly connected to the base (1); the first transmission gear (52) and the second transmission gear (53) are both bevel gears; the first transmission gear (52) is coaxially arranged with a transmission shaft of the motor (2); the second transmission gear (53) is rotatably connected to the transmission frame (51); the first transmission gear (52) is meshed with the second transmission gear (53); one end of the transmission assembly (54) is connected to the second transmission gear (53) and the other end is connected to the cooling mechanism (4).

8. A high temperature resistant positive displacement pump according to claim 7, characterized in that: The transmission assembly (54) comprises a transmission sleeve (541) and a transmission belt (542), two transmission sleeves (541) are provided, the two transmission sleeves (541) are respectively sleeved on the gear shaft of the first gear (61) and the gear shaft of the second transmission gear (53), and the transmission platform is simultaneously sleeved on the two transmission sleeves (541).

9. A high temperature resistant positive displacement pump according to claim 8, characterized in that: The surface of the conveyor belt that contacts the two transmission sleeves (541) is provided with anti-slip grooves.

10. A high temperature resistant positive displacement pump according to claim 1, characterized in that: A coupling (9) is also provided between the motor (2) and the pump body (3).

Images