Booster pump with high sealing performance
By adopting a multi-layer mechanical sealing structure in the booster pump, the problem that traditional booster pumps are difficult to achieve efficient sealing when rotating at high speed is solved, and efficient sealing is achieved, preventing fluid leakage and improving working efficiency.
Patent Information
- Application Number
- CN202421818040.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Traditional booster pumps are difficult to achieve efficient sealing when rotating at high speed, resulting in fluid leakage and affecting overall efficiency and function.
The design includes the rear pump housing, the front pump housing, the motor, the spindle, the support assembly, the sealing bearing, the sealing box, the moving ring, the static ring, the sealing gasket and the compensation assembly is adopted to achieve efficient sealing through a multi-layer mechanical sealing structure.
It realizes efficient dynamic and mechanical sealing, effectively prevents fluid leakage, ensures that the booster pump operates under optimal working conditions, and improves overall working efficiency.
Smart Images
Figure CN222963062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of booster pumps, in particular to a booster pump with high sealing performance. Background Art
[0002] A booster pump is a device used to increase the pressure of a fluid and is widely applied in multiple fields such as household water supply, industrial production, and agricultural irrigation. Its main function is to ensure that the water flow can be delivered to the required height and distance by increasing the water flow pressure. The importance of high sealing performance in a booster pump cannot be ignored. Since a booster pump often needs to work under high-pressure environments, if the sealing performance is insufficient, it may lead to fluid leakage, which not only affects the working efficiency of the pump but also may cause equipment damage and environmental pollution. In addition, high sealing performance can also prevent external pollutants from entering the pump interior, ensuring the long service life and stable operation of the pump. Therefore, a booster pump with a high-sealing design can effectively improve the reliability and safety of the system.
[0003] Traditional booster pumps mainly drive the impeller to rotate through an electric motor, suck water from the water inlet by using centrifugal force, increase the kinetic energy and pressure of the water through the high-speed rotation of the impeller, and then discharge it from the water outlet. Its working principle is based on Bernoulli's principle in fluid mechanics, that is, in a closed system, the faster the fluid velocity, the higher the pressure. When in use, the booster pump is usually installed in a pipeline system where the pressure needs to be increased, and the water pressure is adjusted by controlling the start and stop of the electric motor. The water inlet of the pump is connected to the water source, and the water outlet is connected to the water usage point or the equipment that needs to be pressurized. In this way, the booster pump can effectively increase the water flow pressure and meet the needs of high-rise building water supply, long-distance transportation, etc.
[0004] For traditional booster pumps, due to their structural design and working environment. Booster pumps usually require a high-speed rotating impeller to increase the fluid pressure, and this high-speed movement makes it difficult to achieve efficient sealing, resulting in fluid leakage, affecting the overall efficiency of the booster pump, and unable to fully exert its functions. Summary of the Utility Model
[0005] To make up for the above deficiencies, the utility model provides a booster pump with high sealing performance, aiming to improve the problem that it is difficult to achieve efficient sealing during the high-speed movement of traditional booster pumps, resulting in fluid leakage, affecting the overall efficiency of the booster pump, and unable to fully exert its functions.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A supercharger pump with high sealing performance, including a rear pump housing, one side of the outer wall of the rear pump housing is fixedly connected to a front pump housing, the other side of the outer wall of the rear pump housing is fixedly connected to a motor, the output end of the motor is fixedly connected to a main shaft, the outer wall of the main shaft is rotatably connected inside the rear pump housing and the front pump housing, a support assembly is arranged on the outer wall of the main shaft, the support assembly is used to support both ends of the main shaft to reduce friction, a sealing bearing is fixedly connected to the outer wall of the main shaft, the outer wall of the sealing bearing is fixedly connected inside the rear pump housing, a sealing gland is fixedly connected inside the rear pump housing, the inner wall of the sealing gland fits on the outer wall of the main shaft, an outer rotor and an inner rotor are fixedly connected in sequence on the outer wall of the main shaft, a moving ring is fixedly connected to the outer wall of the outer rotor, a stationary ring is slidably connected inside the rear pump housing, sealing gaskets are fixedly connected inside both the stationary ring and the moving ring, a compensation assembly is arranged inside the stationary ring, and the compensation assembly is used to push the stationary ring and the moving ring to fit tightly.
[0007] Further, the support assembly includes a sliding bearing I, the inner wall of the sliding bearing I is fixedly connected to the outer wall of the main shaft, the outer wall of the sliding bearing I is fixedly connected inside the rear pump housing, one end of the main shaft is fixedly connected to a sliding bearing II, and the outer wall of the sliding bearing II is fixedly connected inside the front pump housing.
[0008] Further, the compensation assembly includes a telescopic rod, one end of the telescopic rod is fixedly connected inside the stationary ring, a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is fixedly connected inside the stationary ring, and the other end of the spring is fixedly connected inside the rear pump housing.
[0009] Further, supports are fixedly connected to the lower surfaces of both the rear pump housing and the front pump housing, and a delivery pipe is fixedly connected inside the front pump housing.
[0010] Further, a connecting flange is fixedly connected to the outer wall of the delivery pipe, and a sealing ring is fixedly connected to the upper surface of the delivery pipe.
[0011] Further, a rotating shaft is fixedly connected to the lower surface of the connecting flange, and a limiting plate is rotatably connected to the outer wall of the rotating shaft.
[0012] Further, a fixing bolt is arranged inside the limiting plate, and the outer wall of the fixing bolt is arranged inside the connecting flange.
[0013] Further, a nut is threadedly connected to the outer wall of the fixing bolt, and a gasket is arranged between the nut and the limiting plate.
[0014] The present utility model has the following beneficial effects:
[0015] 1. In the present utility model, first, the motor is started to cooperate with the main shaft, the outer rotor, and the inner rotor to achieve operation. Then, the two ends of the main shaft are supported by the first sliding bearing and the second sliding bearing. Next, preliminary sealing is carried out by the sealing gland and the sealing bearing. Finally, mechanical sealing is carried out by the dynamic ring, the static ring, the sealing gasket, the telescopic rod, and the spring, solving the problem that it is difficult to achieve efficient sealing, resulting in fluid leakage, affecting the overall efficiency of the booster pump, and being unable to fully exert its function, achieving efficient dynamic and mechanical sealing, effectively preventing fluid leakage, ensuring the booster pump operates under the best working conditions, and improving the overall working efficiency.
[0016] 2. In the present utility model, first, the connecting flange is fitted with the external pipeline, and then sealed by the sealing ring. Next, the limiting plate is pulled to cooperate with the fixing bolt, the gasket, and the nut to realize the connection between the conveying pipe and the external pipeline, achieving convenient and stable connection, reducing the risks of accidental leakage and faults caused by loose or poor connection, and improving the reliability of the device. Brief Description of the Drawings
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a high-sealing booster pump proposed by the present utility model;
[0018] Figure 2 It is a schematic diagram of the internal structure of the rear pump housing of a high-sealing booster pump proposed by the present utility model;
[0019] Figure 3 It is a schematic diagram of one side of the outer rotor of a high-sealing booster pump proposed by the present utility model;
[0020] Figure 4 It is a schematic diagram of one side of the limiting plate of a high-sealing booster pump proposed by the present utility model.
[0021] Legend Explanation:
[0022] 1. Rear pump housing; 2. Front pump housing; 3. Motor; 4. Main shaft; 5. First sliding bearing; 6. Sealing gland; 7. Sealing bearing; 8. Outer rotor; 9. Inner rotor; 10. Second sliding bearing; 11. Dynamic ring; 12. Static ring; 13. Sealing gasket; 14. Telescopic rod; 15. Spring; 16. Support; 17. Conveying pipe; 18. Connecting flange; 19. Rotating shaft; 20. Limiting plate; 21. Fixing bolt; 22. Gasket; 23. Nut; 24. Sealing ring. Detailed Embodiment
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Referring to Figure 1 - Figure 3 , an embodiment provided by the present utility model: a supercharger with high sealing performance, including a rear pump housing 1, one side of the outer wall of the rear pump housing 1 is fixedly connected to a front pump housing 2, the other side of the outer wall of the rear pump housing 1 is fixedly connected to a motor 3, the output end of the motor 3 is fixedly connected to a main shaft 4, the outer wall of the main shaft 4 is rotatably connected inside the rear pump housing 1 and the front pump housing 2, a support assembly is arranged on the outer wall of the main shaft 4, and the support assembly is used to support both ends of the main shaft 4 to reduce friction. A sealing bearing 7 is fixedly connected to the outer wall of the main shaft 4, the outer wall of the sealing bearing 7 is fixedly connected inside the rear pump housing 1, a sealing gland 6 is fixedly connected inside the rear pump housing 1, the inner wall of the sealing gland 6 is attached to the outer wall of the main shaft 4, an outer rotor 8 and an inner rotor 9 are fixedly connected in sequence to the outer wall of the main shaft 4, a dynamic ring 11 is fixedly connected to the outer wall of the outer rotor 8, a static ring 12 is slidably connected inside the rear pump housing 1, sealing gaskets 13 are fixedly connected inside both the static ring 12 and the dynamic ring 11, a compensation assembly is arranged inside the static ring 12, and the compensation assembly is used to push the static ring 12 and the dynamic ring 11 to tightly fit. The support assembly includes a sliding bearing one 5, the inner wall of the sliding bearing one 5 is fixedly connected to the outer wall of the main shaft 4, the outer wall of the sliding bearing one 5 is fixedly connected inside the rear pump housing 1, a sliding bearing two 10 is fixedly connected to one end of the main shaft 4, and the outer wall of the sliding bearing two 10 is fixedly connected inside the front pump housing 2. The compensation assembly includes a telescopic rod 14, one end of the telescopic rod 14 is fixedly connected inside the static ring 12, a spring 15 is sleeved on the outer wall of the telescopic rod 14, one end of the spring 15 is fixedly connected inside the static ring 12, and the other end of the spring 15 is fixedly connected inside the rear pump housing 1;
[0025] Specifically, first, start the motor 3. The output end of the motor 3 drives the main shaft 4 to rotate inside the rear pump housing 1 and the front pump housing 2, thereby driving the outer rotor 8 and the inner rotor 9 to rotate inside the front pump housing 2 to achieve operation. During this process, the first sliding bearing 5 supports the main shaft 4 inside the rear pump housing 1, and then the second sliding bearing 10 supports the other end of the main shaft 4 inside the front pump housing 2, thereby reducing the friction between the main shaft 4, the rear pump housing 1 and the front pump housing 2 and improving their service life. Then, the sealing gland 6 and the sealing bearing 7 on one side cooperate to seal the main shaft 4 during operation. When the outer rotor 8 rotates during operation, it will drive the moving ring 11 and the sealing gasket 13 to rotate on the outer wall of the stationary ring 12, and mechanical sealing is achieved through the sealing gasket 13 inside the moving ring 11 and the stationary ring 12. After long-term use, the sealing gasket 13 will be worn. At this time, the spring 15 pushes the stationary ring 12 to closely fit with the moving ring 11 for a long time to achieve efficient sealing.
[0026] Refer to Figure 1 、 Figure 2 and Figure 4 , both the lower surfaces of the rear pump housing 1 and the front pump housing 2 are fixedly connected with supports 16. A delivery pipe 17 is fixedly connected inside the front pump housing 2. A connecting flange 18 is fixedly connected to the outer wall of the delivery pipe 17. A sealing ring 24 is fixedly connected to the upper surface of the delivery pipe 17. A rotating shaft 19 is fixedly connected to the lower surface of the connecting flange 18. A limiting plate 20 is rotatably connected to the outer wall of the rotating shaft 19. A fixing bolt 21 is arranged inside the limiting plate 20. The outer wall of the fixing bolt 21 is arranged inside the connecting flange 18. A nut 23 is threadedly connected to the outer wall of the fixing bolt 21. A gasket 22 is arranged between the nut 23 and the limiting plate 20;
[0027] Specifically, by fitting the connecting flange 18 with an external pipe, then sealing the connection through the sealing ring 24, then pulling the limiting plate 20 to rotate around the rotating shaft 19, so that the limiting plate 20 is sleeved on the outer walls of the connecting flange 18 and the external pipe, then passing the fixing bolt 21 through the limiting plate 20, the connecting flange 18 and the external pipe, and finally connecting the pipes with the gasket 22 and the nut 23. This process is limited by the limiting plate 20 to achieve efficient sealing.
[0028] Working principle: When a high-sealing booster pump is needed, first start the motor 3. Its output end drives the main shaft 4 to rotate inside the rear pump housing 1 and the front pump housing 2. The outer rotor 8 and the inner rotor 9 rotate inside the front pump housing 2 to drive the pump body to operate. The first sliding bearing 5 and the second sliding bearing 10 support the two ends of the main shaft 4 respectively, reducing friction and extending the service life. The sealing gland 6 and the sealing bearing 7 seal the main shaft 4. The sealing gasket 13 inside the moving ring 11 and the stationary ring 12 achieves mechanical sealing. After using for a period of time, the sealing gasket 13 may be worn. At this time, the spring 15 pushes the stationary ring 12 to closely fit with the moving ring 11 to maintain efficient sealing;
[0029] In addition, it is connected to the external pipeline through the connecting flange 18 and sealed with the sealing ring 24. The limiting plate 20 is pulled to sleeved on the outer walls of the connecting flange 18 and the external pipeline. The fixing bolts 21 pass through the limiting plate 20, the connecting flange 18 and the external pipeline, and are fixedly connected with the gaskets 22 and nuts 23. The limiting plate 20 ensures efficient sealing at the connection, achieving stable connection.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high-sealing booster pump, comprising a rear pump housing (1), characterized in that: One side of the outer wall of the rear pump housing (1) is fixedly connected to the front pump housing (2), and the other side of the outer wall of the rear pump housing (1) is fixedly connected to the motor (3). The output end of the motor (3) is fixedly connected to the main shaft (4). The outer wall of the main shaft (4) is rotatably connected to the interior of the rear pump housing (1) and the front pump housing (2). The outer wall of the main shaft (4) is provided with a support assembly, and the support assembly is used to support both ends of the main shaft (4) to reduce friction. The outer wall of the main shaft (4) is fixedly connected to a sealed bearing (7). The outer wall of the sealed bearing (7) is fixedly connected to the interior of the rear pump housing (1). A sealing box (6) is fixedly connected to the interior of the pump housing (1), the inner wall of the sealing box (6) is fitted to the outer wall of the main shaft (4), the outer wall of the main shaft (4) is fixedly connected to an outer rotor (8) and an inner rotor (9) in turn, the outer wall of the outer rotor (8) is fixedly connected to a moving ring (11), the interior of the rear pump housing (1) is slidably connected to a stationary ring (12), the interiors of the stationary ring (12) and the moving ring (11) are fixedly connected to sealing gaskets (13), and a compensation component is provided inside the stationary ring (12), and the compensation component is used to push the stationary ring (12) and the moving ring (11) to fit tightly.
2. A high-sealing booster pump according to claim 1, characterized in that: The support assembly comprises a sliding bearing 1 (5), the inner wall of the sliding bearing 1 (5) is fixedly connected to the outer wall of the main shaft (4), the outer wall of the sliding bearing 1 (5) is fixedly connected to the interior of the rear pump housing (1), and one end of the main shaft (4) is fixedly connected to a sliding bearing 2 (10), the outer wall of the sliding bearing 2 (10) is fixedly connected to the interior of the front pump housing (2).
3. A high-sealing booster pump according to claim 1, characterized in that: The compensation assembly comprises a telescopic rod (14), one end of the telescopic rod (14) is fixedly connected to the interior of the static ring (12), an outer wall of the telescopic rod (14) is sleeved with a spring (15), one end of the spring (15) is fixedly connected to the interior of the static ring (12), and the other end of the spring (15) is fixedly connected to the interior of the rear pump housing (1).
4. A high-sealing booster pump according to claim 1, characterized in that: The lower surfaces of the rear pump housing (1) and the front pump housing (2) are both fixedly connected with a support (16), and the interior of the front pump housing (2) is fixedly connected with a delivery pipe (17).
5. A high-sealing booster pump according to claim 4, characterized in that: A connecting flange (18) is fixedly connected to the outer wall of the delivery pipe (17), and a sealing ring (24) is fixedly connected to the upper surface of the delivery pipe (17).
6. A high-sealing booster pump according to claim 5, characterized in that: A rotating shaft (19) is fixedly connected to the lower surface of the connecting flange (18), and an outer wall of the rotating shaft (19) is rotatably connected to a limiting plate (20).
7. A high-sealing booster pump according to claim 6, characterized in that: A fixing bolt (21) is arranged inside the limiting plate (20), and an outer wall of the fixing bolt (21) is arranged inside the connecting flange (18).
8. A high-sealing booster pump according to claim 7, characterized in that: The outer wall of the fixing bolt (21) is threadedly connected with a nut (23), and a gasket (22) is arranged between the nut (23) and the limiting plate (20).