High-lift centrifugal pump
By introducing a filter mesh and spiral sheet structure into the centrifugal pump, the damage problem of silt or impurities in the water flow to the pump body is solved, effective impurity filtration and impact force are achieved, and the service life of the pump body is extended.
Patent Information
- Application Number
- CN202421820458.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-30
AI Technical Summary
When existing centrifugal pumps contain silt or impurities in the water flow, the impeller rotates at high speed and causes damage to the inside of the pump body.
A high-head centrifugal pump is designed, including a support cylinder, a connecting plate, a filter mesh and a spiral sheet. It filters impurities through the filter mesh and uses the spiral sheet to convert the impact force of the water flow to slow down the water flow velocity and reduce the impact on the pump body.
Effectively filter impurities, reduce the impact of water flow on the pump body, extend the service life of the pump body, and improve the filtration effect.
Smart Images
Figure CN223089557U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of centrifugal pumps, and particularly relates to a centrifugal pump with a high lift. Background Technique
[0002] After the centrifugal pump starts, the pump shaft will drive the impeller to rotate at a high speed together, forcing the liquid pre-filled between the blades to rotate. Under the action of inertial centrifugal force, the liquid moves radially from the center of the impeller to the periphery. During the movement of the liquid medium through the impeller, it will obtain energy, resulting in an increase in static pressure energy and an increase in flow velocity at the same time. When the liquid leaves the impeller and enters the pump casing, it decelerates due to the gradually expanding flow channel in the casing.
[0003] When the existing water flow enters the centrifugal pump, the water flow will carry sand or impurities. When the impeller drives the water flow to rotate at a high speed, it will also drive the sand or impurities to rotate, thereby causing impact on the inside of the pump body and damaging the inside of the pump body.
[0004] Therefore, it is very necessary to propose a centrifugal pump with a high lift to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a centrifugal pump with a high lift to solve the problem that when the existing water flow enters the centrifugal pump, the water flow will carry sand or impurities. When the impeller drives the water flow to rotate at a high speed, it will also drive the sand or impurities to rotate, thereby causing impact on the inside of the pump body and damaging the inside of the pump body.
[0006] To achieve the above purpose, the utility model provides the following technical solution: a centrifugal pump with a high lift, including a support cylinder and a connection disk. The support cylinder and the connection disk are internally communicated. A first connection port and a second connection port are respectively opened at the top end of the connection disk and on the side far from the support cylinder. A connection cylinder is in threaded fit with the outside of the second connection port. A filter screen is arranged inside the connection cylinder. A plurality of through ports are respectively opened at both ends inside the second connection port. A rotating shaft is rotatably connected to the centers of both ends inside the second connection port. A spiral blade is fixed to the outside of the rotating shaft.
[0007] Preferably, an external thread is arranged on the outside of the second connection port, and threaded ports are respectively arranged at both ends inside the connection cylinder. The threaded ports are in threaded fit with the corresponding external threads.
[0008] Preferably, a flow velocity sensor is fixed to the outside of the second connection port, and the detection end of the flow velocity sensor extends into the inside of the second connection port.
[0009] Preferably, a pump shaft is rotatably connected inside the support cylinder. One end of the pump shaft extends into the inside of the connection disk, and a rotating disk is fixed to the outer side of the extending end of the pump shaft. A plurality of blades are fixed to one side of the rotating disk, and the plurality of blades are distributed around the center of the rotating disk. A plurality of connection disks are provided, and the plurality of connection disks are arranged in parallel and are all fixed to the pump shaft.
[0010] Preferably, the plurality of blades are all arranged close to the second connection port, and the plurality of blades are all in an arc shape and are spirally distributed.
[0011] Preferably, a fixed base is fixedly connected to the bottom end of the support cylinder, and fixing holes are opened at the four corners of the fixed base.
[0012] Preferably, the other end of the pump shaft extends out of the support cylinder, and the extending end is connected to a motor.
[0013] The technical effects and advantages of the present utility model are as follows:
[0014] 1. In the actual operation of the present utility model, one end of the connection cylinder can be threadedly installed inside the second connection port, and at the same time, a water pipe can also be threadedly installed at the other end of the connection cylinder. The connection cylinder is used to connect the water pipe and the pump body. When water flows through the connection cylinder, the filter screen can filter impurities and particles in the water flow to prevent them from entering the inside of the pump body. At the same time, when the water flow passes through the second connection port, the impact force of the water flow will drive the spiral fins to rotate, thereby converting the impact force of the water flow into the rotational force of the spiral fins, slowing down the speed of the water flow, and reducing the impact of the water flow on the pump body.
[0015] 2. Further, after the water flow slows down, the water flow can stay at the filter screen for a longer time, improving the filtering effect. A flow rate sensor is fixed to the outside of the second connection port, and the detection end of the flow rate sensor extends into the inside of the second connection port. The flow rate sensor can detect the water flow rate in real time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of the high-lift centrifugal pump of the present utility model.
[0017] Figure 2 It is a schematic structural diagram of the rotating disk and the blades of the present utility model.
[0018] Figure 3 It is a schematic internal structure diagram of the second connection port of the present utility model.
[0019] In the figure: 1. Fixed base; 2. Support cylinder; 3. Connection plate; 4. Pump shaft; 5. First connection port; 6. Second connection port; 7. Flow rate sensor; 8. Filter screen; 9. Threaded port; 10. Rotating disc; 11. Blades; 12. Rotating shaft; 13. Through port; 14. External thread; 15. Spiral fin; 16. Connection cylinder. Detailed implementation mode
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] The present invention provides a centrifugal pump with a high lift as shown in Figure 1 - Figure 3 It includes a support cylinder 2 and a connection plate 3. The support cylinder 2 and the connection plate 3 are internally connected. A first connection port 5 and a second connection port 6 are respectively opened at the top end of the connection plate 3 and on the side away from the support cylinder 2. A pump shaft 4 is rotatably connected inside the support cylinder 2. One end of the pump shaft 4 extends into the inside of the connection plate 3, and a rotating disc 10 is fixed on the outer side of the extending end of the pump shaft 4. A plurality of blades 11 are fixed on one side of the rotating disc 10. The plurality of blades 11 are distributed around the center of the rotating disc 10. The other end of the pump shaft 4 extends out of the support cylinder 2, and the extending end is connected to a motor. The bottom end of the support cylinder 2 is fixedly connected to a fixed base 1, and fixing holes are opened at the four corners of the fixed base 1.
[0022] In the actual operation of the present invention, the fixed base 1 can support the overall device. When one end of the pump shaft 4 is connected to the motor, the motor drives the pump shaft 4 to rotate. The pump shaft 4 can drive the rotating disc 10 and a plurality of blades 11 to rotate at a high speed, so as to complete the transportation of the water flow entering the inside of the connection plate 3.
[0023] A connection cylinder 16 is in threaded cooperation with the outside of the second connection port 6. A filter screen 8 is arranged inside the connection cylinder 16. A plurality of through ports 13 are opened at both ends inside the second connection port 6. A rotating shaft 12 is rotatably connected to the center of both ends inside the second connection port 6. A spiral fin 15 is fixed on the outer side of the rotating shaft 12. An external thread 14 is arranged on the outside of the second connection port 6. Threaded ports 9 are arranged at both ends inside the connection cylinder 16, and the threaded ports 9 are in threaded cooperation with the corresponding external threads 14.
[0024] In the actual operation of the present utility model, one end of the connecting cylinder 16 can be threadedly installed inside the second connecting port 6, and at the same time, a water pipe can also be threadedly installed at the other end of the connecting cylinder 16. The water pipe and the pump body are connected through the connecting cylinder 16. When water flows through the connecting cylinder 16, the filter screen 8 can connect impurities and particles in the water flow to prevent them from entering the interior of the pump body. At the same time, when the water flow passes through the second connecting port 6, the impact force of the water flow will drive the spiral vane 15 to rotate, thereby converting the impact force of the water flow into the rotational force of the spiral vane 15, slowing down the speed of the water flow, and reducing the impact of the water flow on the pump body. Further, after the water flow slows down, the water flow can stay at the filter screen 8 for a longer time, improving the filtering effect.
[0025] A flow velocity sensor 7 is fixed on the outer side of the second connecting port 6, and the detection end of the flow velocity sensor 7 extends into the interior of the second connecting port 6. The flow velocity sensor 7 can detect the water flow velocity in real time.
[0026] A plurality of connection disks 3 are provided. The plurality of connection disks 3 are arranged in parallel and are all fixed on the pump shaft 4. By adopting a series connection of the connection disks 3, the lift is increased.
[0027] A plurality of vanes 11 are all arranged close to the second connecting port 6, and the plurality of vanes 11 are all arc-shaped and are spirally distributed. The water flow entering the interior of the connection disk 3 can be discharged from the first connecting port 5 more quickly through the drive of the vanes 11.
Claims
1. A high-lift centrifugal pump, comprising a support cylinder (2) and a connecting disc (3), characterized in that: The support cylinder (2) and the connection disk (3) are internally connected. A first connection port (5) and a second connection port (6) are respectively opened at the top end of the connection disk (3) and on the side away from the support cylinder (2). A connection cylinder (16) is in threaded fit with the outside of the second connection port (6). A filter screen (8) is arranged inside the connection cylinder (16). A plurality of through ports (13) are opened at both ends inside the second connection port (6). A rotating shaft (12) is rotatably connected to the center of both ends inside the second connection port (6). A spiral blade (15) is fixed to the outside of the rotating shaft (12).
2. The centrifugal pump with high lift according to claim 1, characterized in that: External threads (14) are arranged on the outside of the second connection port (6). Threaded ports (9) are arranged at both ends inside the connection cylinder (16). The threaded ports (9) are in threaded fit with the corresponding external threads (14).
3. A high-lift centrifugal pump according to claim 1, characterized in that: A flow rate sensor (7) is fixed to the outside of the second connection port (6). The detection end of the flow rate sensor (7) extends into the inside of the second connection port (6).
4. The centrifugal pump with high lift according to claim 1, characterized in that: A pump shaft (4) is rotatably connected to the inside of the support cylinder (2). One end of the pump shaft (4) extends into the inside of the connection disk (3). A rotating disk (10) is fixed to the outside of the extending end of the pump shaft (4). A plurality of blades (11) are fixed to one side of the rotating disk (10). The plurality of blades (11) are distributed around the center of the rotating disk (10). A plurality of connection disks (3) are provided. The plurality of connection disks (3) are arranged in parallel and are all fixed to the pump shaft (4).
5. A high-lift centrifugal pump according to claim 4, characterized in that: The plurality of blades (11) are all arranged close to the second connection port (6). The plurality of blades (11) are all in arc shape and are spirally distributed.
6. A high-lift centrifugal pump according to claim 1, characterized in that: The bottom end of the support cylinder (2) is fixedly connected to a fixed base (1). Fixing holes are opened at the four corners of the fixed base (1).
7. A high-lift centrifugal pump according to claim 4, characterized in that: The other end of the pump shaft (4) extends out of the support cylinder (2), and the extending end is connected to a motor.