Axial flow pump with filtering and anti-blocking device

Abstract

The utility model discloses an axial flow pump with a filtering anti-blocking device, which belongs to the field of axial flow pumps, and comprises a pump seat, the top of the pump seat is fixedly connected with a pump body, the top of the pump seat is provided with a mounting hole, one end of the pump body is fixedly connected with a plunger assembly, and the side surface of the plunger assembly is provided with a filtering assembly; the filter assembly comprises a connecting pipe, one end of the connecting pipe is fixedly connected to the side end of the plunger assembly, the inner side face of the connecting pipe is connected with a filter plate through a bolt, and the side face of the filter plate is fixedly connected with an adjusting plate. Through cooperative use of all the devices, a pressure adapting plate sliding in an adjusting plate is affected by water pressure, a pressure spring is extruded to contract and slides towards the interior of the adjusting plate, an auxiliary filtering set is opened, at the moment, water flows into the adjusting plate and is discharged through the auxiliary filtering set, and then according to the size of the water flow, the filtering effect is improved. And self-adaptive adjustment is carried out, so that water outlet blockage caused by overlarge water flow is avoided.

Description

Technical Field

[0001] This utility model relates to the field of axial flow pump technology, specifically an axial flow pump with a filter anti-clogging device. Background Technology

[0002] Axial flow pumps are pumps that use the force generated by the blades of a rotating impeller to transport liquid along its axis. They come in several types, including vertical, horizontal, inclined, and through-flow pumps. Since 1961, China has developed a total of 664 sets of large axial flow pumps. Their specific speeds (n) are 500, 700, 850, 1000, 1250, 1400, and 1600, respectively; impeller diameters are 1.6m, 2.0m, 2.8m, 3.0m, 3.1m, 4.0m, and 4.5m. A total of 114 large axial flow pump stations have been built in 16 provinces, municipalities, and autonomous regions, including Jiangsu, Hubei, Hunan, Anhui, Guangdong, Tianjin, Shandong, Shanxi, Shaanxi, and Xinjiang, with a total installed capacity of 630,000 kW.

[0003] Upon investigation, a Chinese utility model patent (or invention patent) discloses a waterproof display and control instrument (publication number: CN216691477U), which includes a vertical axial flow pump, an outlet, an inlet, a fixed frame A, a servo motor, a rotating rod, and axial flow blades. The inlet is embedded in the bottom of the vertical axial flow pump, and the fixed frame A is fixedly installed on the outer wall of the bottom of the inlet. The outlet is embedded in one end of the top of the vertical axial flow pump, and the servo motor is fixedly installed on the top of the vertical axial flow pump. The rotating rod is connected to the bottom of the servo motor through an output shaft.

[0004] Although the aforementioned patent uses components such as servo motors and rotating rods to allow river water carrying impurities into an impurity collection tank, and the impact force of the river water to open a movable plate rotating on the outside of the shaft, causing the river water to pass through the filter screen B at the other end of the impurity collection tank, thus blocking the impurities in the river water, and then guiding the filtered river water from the inlet into a vertical axial flow pump, and then from the outlet into a connected water pipe, leading to a storage device in the work area for workers to use, it is difficult to adaptively adjust according to the water flow size, which can cause water flow blockage when the flow rate is large, and needs to be improved.

[0005] Therefore, this utility model provides an axial flow pump with a filter anti-clogging device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides an axial flow pump with a filter and anti-clogging device, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: an axial flow pump with a filter anti-clogging device, comprising an axial flow pump assembly, including a pump base, a pump body fixedly connected to the top of the pump base, a plunger assembly fixedly connected to the pump body, and a filter assembly connected to the side of the plunger assembly;

[0010] The filter assembly includes a connecting pipe fixedly connected to the side end of the plunger assembly, a filter plate connected to the inner side of the connecting pipe by bolts, an adjusting plate fixedly disposed on the inner side of the filter plate, and a pressure adjusting plate slidably connected to the inner side of the adjusting plate. An auxiliary filter group is provided on the side of the adjusting plate.

[0011] The cleaning assembly includes a drive assembly disposed on the inner wall of the connecting pipe, and an external gear rotatably connected to the filter plate and arranged around the periphery of the adjusting plate. The inner wall of the external gear is provided with a cleaning component connected to the adjusting plate, and the drive end of the drive assembly is provided with a pinion meshing with the external gear.

[0012] Furthermore, the auxiliary filter group is provided in two groups and is arranged in a linear array on the circumferential surface of the adjustment plate.

[0013] Furthermore, the interior of the adjusting plate is hollow, and the pressure plate is slidably connected to the inner side of the adjusting plate via the pressure spring. The pressure spring is initially set to a relaxed state, and the diameter of the pressure plate matches the inner diameter of the adjusting plate.

[0014] Furthermore, the drive assembly includes a motor disposed on the side of the fixed base, the output shaft of the motor is fixedly connected to a rotating shaft, a small gear is fixedly connected to the end of the rotating shaft that is not connected to the motor, and the cleaning component is a cleaning brush fixedly connected to the inner side of the external gear ring.

[0015] Furthermore, multiple cleaning brushes are provided and arranged circumferentially on the circumferential surface of the outer toothed ring.

[0016] Furthermore, the circumferential surface of the external gear ring meshes with the pinion, and the surface area ratio of the pinion to the external gear ring is set to 1:4.

[0017] Furthermore, the outer end of the auxiliary filter group is located on the displacement trajectory of the cleaning brush.

[0018] Beneficial effects

[0019] 1. This utility model utilizes the cooperation of components such as the pressure plate and the adjustment plate inside the filter assembly. The pressure plate sliding inside the adjustment plate is affected by water pressure, which compresses the pressure spring, causing the spring to contract and slide into the adjustment plate, opening the auxiliary filter group. At this time, water flows into the adjustment plate and is discharged through the auxiliary filter group. The system then makes adaptive adjustments according to the water flow, avoiding water outlet blockage caused by excessive water flow.

[0020] 2. This utility model utilizes the cooperation of components such as the external gear ring and cleaning brush inside the filter assembly to cause the small gear to rotate and drive the meshing external gear ring to rotate in reverse. The rotation of the external gear ring drives the cleaning brush to rotate in reverse, and the cleaning brush removes the dust on the auxiliary filter assembly, thereby ensuring the normal maintenance of the auxiliary filter assembly and reducing the frequency of maintenance in outdoor environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of an axial flow pump with a filter anti-clogging device.

[0022] Figure 2 This is a schematic diagram of the connecting pipe in an axial flow pump with a filter and anti-clogging device.

[0023] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the connecting pipe in an axial flow pump with a filter and anti-clogging device.

[0024] Figure 4 This is a schematic diagram of the filter plate in an axial flow pump with a filter anti-clogging device.

[0025] Figure 5 In an axial flow pump with a filter and anti-clogging device Figure 4 A three-dimensional magnified structural diagram of A.

[0026] In the picture:

[0027] 1. Pump base; 2. Pump body; 3. Plunger assembly; 4. Filter assembly; 41. Connecting pipe; 42. Filter plate; 43. Adjusting plate; 44. Pressure plate; 45. Pressure spring; 46. Auxiliary filter group; 401. Fixed base; 402. Rotating shaft; 403. Pinion; 404. Cleaning brush; 405. External gear ring; 406. Motor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides an axial flow pump with a filter anti-clogging device, such as Figures 1-5 As shown, an axial flow pump with a filter and anti-clogging device includes a pump base 1, a pump body 2 fixedly connected to the top of the pump base 1, an installation hole on the top of the pump base 1, a plunger assembly 3 fixedly connected to one end of the pump body 2, and a filter assembly 4 provided on the side of the plunger assembly 3; the filter assembly 4 includes a connecting pipe 41, one end of the connecting pipe 41 fixedly connected to the side of the plunger assembly 3, a filter plate 42 connected to the inner side of the connecting pipe 41 by bolts, an adjusting plate 43 fixedly connected to the side of the filter plate 42, a pressure plate 44 slidably connected to the inner side of the adjusting plate 43, a pressure spring 45 fixedly connected to one end of the pressure plate 44, one end of the pressure spring 45 fixedly connected to the inner side of the adjusting plate 43, and an auxiliary filter group 46 provided on the side of the adjusting plate 43.

[0030] Two sets of auxiliary filter groups 46 (hole groups) are arranged in a linear array on the circumference of the adjustment plate 43. This design allows the auxiliary filter groups 46 to adaptively adjust according to the water pressure.

[0031] The interior of the adjusting plate 43 is hollow, and the pressure spring 45 is initially in a relaxed state. The diameter of the pressure plate 44 matches the diameter of the adjusting plate 43. This design allows the pressure spring 45 to adjust its contraction and expansion according to the water pressure, thereby controlling the opening and closing of the auxiliary filter assembly 46.

[0032] The filter assembly 4 also includes a fixing base 401. The side of the fixing base 401 is fixedly connected to the inner side of the connecting pipe 41. A motor 406 is fixedly connected to the side of the fixing base 401. A rotating shaft 402 is fixedly connected to the output shaft of the motor 406. A small gear 403 is fixedly connected to one end of the rotating shaft 402. An external gear ring 405 is rotatably connected to one end of the filter plate 42. A cleaning brush 404 is fixedly connected to the inner side of the external gear ring 405. The external gear 405 and the filter plate 42 can be rotatably connected through a structure such as a rotating bearing. Any rotatably connected structure can be used in this utility model.

[0033] Multiple cleaning brushes 404 are arranged in a circumferential array on the circumferential surface of the outer toothed ring 405. This design improves the cleaning effect of the device.

[0034] The circumferential surface of the external gear ring 405 meshes with the pinion 403, and the surface area ratio of the pinion 403 to the external gear ring 405 is set to 1:4. This design controls the rotation speed of the cleaning brush 404, preventing the cleaning brush 404 from rotating too fast and causing damage to one end of the auxiliary filter assembly 46.

[0035] One end of the auxiliary filter assembly 46 is located on the displacement trajectory of the cleaning brush 404. This design allows the cleaning brush 404 to stably clean one end of the auxiliary filter assembly 46 during its displacement, preventing clogging of the auxiliary filter assembly 46.

[0036] When the plunger assembly 3 is started and the pumping mode is activated, the water pressure in the connecting pipe 41 increases. Some water flows out through the filter holes on the filter plate 42. When the water pressure increases to a certain level, the filter holes on the filter plate 42 cannot handle the large water flow. At this time, in order to avoid water flow blockage, the pressure plate 44 sliding inside the regulating plate 43 is affected by the water pressure, which squeezes the pressure spring 45, causing the pressure spring 45 to contract and slide into the regulating plate 43 and open the auxiliary filter group 46. At this time, the water flows into the regulating plate 43 and is discharged through the auxiliary filter group 46. The system then makes adaptive adjustments according to the water flow size, avoiding water outlet blockage caused by excessive water flow.

[0037] Meanwhile, with long-term use, dust accumulates inside the connecting pipe 41 of the auxiliary filter group 46, affecting its normal operation. Operators can start the motor 406 to drive the rotating shaft 402 to rotate. The rotation of the shaft 402 drives the pinion 403 to rotate, which in turn drives the meshing external gear ring 405 to rotate in reverse. The reverse rotation of the external gear ring 405 drives the cleaning brush 404 to rotate in reverse, cleaning the dust on the auxiliary filter group 46. This ensures proper maintenance of the auxiliary filter group 46 and reduces the frequency of maintenance in outdoor environments.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An axial flow pump with a filter anti-clogging device, characterized in that, include: An axial flow pump assembly includes a pump base, a pump body fixedly connected to the top of the pump base, a plunger assembly fixedly connected to the pump body, and a filter assembly connected to the side of the plunger assembly. The filter assembly includes a connecting pipe fixedly connected to the side end of the plunger assembly, a filter plate connected to the inner side of the connecting pipe by bolts, an adjusting plate fixedly disposed on the inner side of the filter plate, and a pressure adjusting plate slidably connected to the inner side of the adjusting plate. An auxiliary filter group is provided on the side of the adjusting plate. The cleaning assembly includes a drive assembly disposed on the inner wall of the connecting pipe, and an external gear rotatably connected to the filter plate and arranged around the periphery of the adjusting plate. The inner wall of the external gear is provided with a cleaning component connected to the adjusting plate, and the drive end of the drive assembly is provided with a pinion meshing with the external gear.

2. An axial flow pump with a filter anti-clogging device according to claim 1, characterized in that: The auxiliary filter group consists of two groups, which are arranged linearly on the circumferential surface of the adjustment plate.

3. An axial flow pump with a filter anti-clogging device according to claim 2, characterized in that: The interior of the adjusting plate is hollow. The pressure plate is slidably connected to the inner side of the adjusting plate via a pressure spring. The pressure spring is initially set to a relaxed state. The diameter of the pressure plate matches the inner diameter of the adjusting plate.

4. An axial flow pump with a filter anti-clogging device according to claim 3, characterized in that: The drive assembly includes a motor located on the side of the fixed base, a rotating shaft fixedly connected to the output shaft of the motor, a pinion fixedly connected to the end of the rotating shaft not connected to the motor, and a cleaning component consisting of a cleaning brush fixedly connected to the inner side of an external gear ring.

5. An axial flow pump with a filter anti-clogging device according to claim 4, characterized in that: Multiple cleaning brushes are provided and arranged circumferentially on the circumferential surface of the outer toothed ring.

6. An axial flow pump with a filter anti-clogging device according to claim 5, characterized in that: The circumferential surface of the external gear ring meshes with the pinion, and the surface area ratio of the pinion to the external gear ring is set to 1:

4.

7. An axial flow pump with a filter anti-clogging device according to claim 6, characterized in that: The outer end of the auxiliary filter group is located on the displacement trajectory of the cleaning brush.

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