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CN-224228963-U - Centrifugal pump bottom valve filter equipment and centrifugal pump

CN224228963UCN 224228963 UCN224228963 UCN 224228963UCN-224228963-U

Abstract

The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump bottom valve filtering device and a centrifugal pump, comprising a first flange and a second flange, wherein the first flange is fixedly arranged at the top of the second flange, a connecting frame is fixedly arranged at the bottom of the second flange, a screen is arranged on the outer side of the connecting frame, a cleaning assembly is arranged in the connecting frame and is used for cleaning the screen, the cleaning assembly consists of a rotating frame, a plurality of groups of rotating plates, a plurality of groups of moving plates, a plurality of groups of cleaning brushes, an inner gear ring and a plurality of groups of guide gears, the rotating frame is rotationally connected in the connecting frame, a plurality of groups of rotating plates are rotationally connected in the rotating frame, the two groups of moving plates are respectively and slidably connected at two ends of the rotating plates, and the cleaning brushes are positioned at one end of the moving plates far away from the rotating plates.

Inventors

  • ZHOU YUSHENG

Assignees

  • 昆山隆恩特环保科技有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (7)

  1. 1. The bottom valve filtering device of the centrifugal pump comprises a first flange (1) and a second flange (2) and is characterized in that the first flange (1) is fixedly arranged at the top of the second flange (2), a connecting frame (3) is fixedly arranged at the bottom of the second flange (2), a screen (4) is arranged at the outer side of the connecting frame (3), and a cleaning component (5) is arranged in the connecting frame (3); The cleaning assembly (5) is used for cleaning the screen cloth (4), the cleaning assembly (5) is composed of a rotating frame (6), a plurality of groups of rotating plates (7), a plurality of groups of moving plates (8), a plurality of groups of cleaning brushes (9), an inner gear ring (10) and a plurality of groups of guide gears (11), the rotating frame (6) is rotationally connected to the inside of the connecting frame (3), the rotating plates (7) are rotationally connected to the inside of the rotating frame (6), the two groups of moving plates (8) are respectively and slidably connected to the two ends of the rotating plates (7), the cleaning brushes (9) are located at one ends, far away from the rotating plates (7), of the moving plates (8), the inner gear ring (10) is fixedly connected to the bottom end inside the connecting frame (3), and the guide gears (11) are rotationally connected to the periphery of the bottom of the rotating frame (6).
  2. 2. The centrifugal pump bottom valve filtering device according to claim 1, wherein the guide gear (11) is meshed with the inner gear ring (10), the guide gear (11) is fixedly connected with the rotating plate (7), and the driving end of the waterproof motor is fixedly connected to the outer side of the rotating frame (6).
  3. 3. The centrifugal pump bottom valve filtering device according to claim 1, wherein the moving plate (8) extends to the inside of the rotating plate (7) and is fixedly connected with a sliding rod (12), two ends of the sliding rod (12) are both connected with sliding blocks (13) in a sliding manner, and one end, far away from the moving plate (8), of the sliding block (13) is rotatably connected with a rotating rod (14).
  4. 4. A centrifugal pump bottom valve filtering device according to claim 3 is characterized in that one end of the rotating rod (14) far away from the sliding blocks (13) is rotationally connected with the rotating plate (7), and the two ends of the sliding rod (12) are respectively sleeved with a first compression spring (15) at the outer sides of the two groups of sliding blocks (13).
  5. 5. The centrifugal pump bottom valve filtering device according to claim 1, wherein one end of the cleaning brush (9) close to the moving plate (8) is fixedly connected with a fixed plate (16), the cleaning brush (9) is connected with the moving plate (8) through the fixed plate (16), two ends of the moving plate (8) are both connected with limiting rods (17) in a sliding mode, and a second compression spring (18) is sleeved on the outer side of each limiting rod (17).
  6. 6. The centrifugal pump bottom valve filtering device according to claim 5, wherein the fixed plate (16) is in limiting connection with the limiting rod (17) through two groups of limiting grooves (19), and two ends of the second compression spring (18) are fixedly connected with the limiting rod (17) and the moving plate (8) respectively.
  7. 7. A centrifugal pump comprising a centrifugal pump water inlet, further comprising a centrifugal pump bottom valve filter apparatus according to any one of claims 1 to 6.

Description

Centrifugal pump bottom valve filter equipment and centrifugal pump Technical Field The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump bottom valve filtering device and a centrifugal pump. Background In the existing shale gas exploitation process, shale gas produced liquid contains sediment, a large amount of impurities are discharged into a gas field pool, the impurity content in the gas field pool is too high due to long-term accumulation, so that regular transportation of gas field water is needed, a centrifugal pump is usually adopted as pumping equipment in the existing shale gas well station, but in the actual use process of the centrifugal pump, impurities in water often enter the centrifugal pump, and the condition that a water inlet pipeline of the centrifugal pump enters air is needed, impurity cleaning and vacuumizing operation is needed for the centrifugal pump, otherwise, the motor of the centrifugal pump is easily damaged, normal production is influenced, and economic loss is caused. Through searching, publication number CN220378569U discloses a centrifugal pump bottom valve filter device and a centrifugal pump, wherein the centrifugal pump bottom valve filter device comprises a single flow valve and a filter structure, the single flow valve can be connected with a water inlet of the centrifugal pump, and the filter structure is used for preventing foreign matters from entering the single flow valve. The centrifugal pump bottom valve filtering device can solve the problem that the conventional centrifugal pump is easy to damage due to the fact that impurities or air enter the centrifugal pump when the conventional centrifugal pump is used for transporting gas field water, and has the defects that the impurities are easy to adhere to the surface of a screen mesh to cause mesh blocking due to the fact that the pump pumps water, the screen mesh is required to be checked and cleaned manually, a large amount of manpower is required to be consumed, and the pumping efficiency of the centrifugal pump is low. Disclosure of utility model The utility model aims to provide a centrifugal pump bottom valve filtering device and a centrifugal pump, wherein a cleaning brush is contacted with the inner side of a screen to clean meshes of the screen, so that the screen can be prevented from being blocked, and the water pumping efficiency of the centrifugal pump is affected, so that the working efficiency of the centrifugal pump can be increased, and the problems in the background art are solved. In order to achieve the above purpose, the present utility model provides the following technical solutions: The bottom valve filtering device of the centrifugal pump comprises a first flange and a second flange, wherein the first flange is fixedly arranged at the top of the second flange, a connecting frame is fixedly arranged at the bottom of the second flange, a screen is arranged at the outer side of the connecting frame, and a cleaning assembly is arranged in the connecting frame; The cleaning assembly is used for cleaning the screen cloth, the cleaning assembly comprises a rotating frame, a plurality of groups of rotating plates, a plurality of groups of moving plates, a plurality of groups of cleaning brushes, an inner gear ring and a plurality of groups of guide gears, the rotating frame is rotationally connected to the inside of the connecting frame, the rotating plates are rotationally connected to the inside of the rotating frame, the moving plates are respectively and slidably connected to the two ends of the rotating plates, the cleaning brushes are located at one end, far away from the rotating plates, of the moving plates, the inner gear ring is fixedly connected to the bottom end inside the connecting frame, and the guide gears are rotationally connected to the periphery of the bottom of the rotating frame. As a preferable scheme of the utility model, the guide gear is meshed with the inner gear ring, the guide gear is fixedly connected with the rotating plate, and the outer side of the rotating frame is fixedly connected with the driving end of the waterproof motor. As a preferable scheme of the utility model, the movable plate is fixedly connected with a sliding rod extending to the inside of the rotary plate, both ends of the sliding rod are connected with sliding blocks in a sliding manner, and one end, far away from the movable plate, of the sliding block is connected with the rotary rod in a rotating manner. As a preferable scheme of the utility model, one end of the rotating rod far away from the sliding blocks is rotationally connected with the rotating plate, and the two ends of the sliding rod and the outer sides of the two groups of sliding blocks are respectively sleeved with a first compression spring. As a preferable scheme of the utility model, one end of the cleaning brush, which is close to the moving plate, is fixedly connected with