Self-priming pump inlet pipe with separable gas-liquid structure
By introducing a separation tank, connecting pipe and automatic cleaning device into the inlet pipe of the self-priming pump, the problems of low efficiency and frequent blockage of traditional self-priming pumps in the treatment of gas-liquid mixed liquids are solved, and efficient gas-liquid separation and stable operation of the equipment are achieved.
Patent Information
- Application Number
- CN202422781083.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-14
AI Technical Summary
When traditional self-priming pump inlet pipes process liquids mixed with gas or impurities, there are problems such as gas interference leading to insufficient suction and unstable operation, and impurity accumulation leading to blockage, which affects the life and efficiency of the equipment.
A self-priming pump inlet pipe with a separable gas-liquid structure was designed, including a separation tank, a connecting pipe, a filter plate and a cleaning brush. Efficient gas-liquid separation was achieved through staggered inclined partitions and porous filter layers. Combined with an automatic cleaning device, water flow resistance and impurity accumulation were reduced.
It improves the operating efficiency and stability of the self-priming pump, reduces energy consumption, extends equipment life, and reduces maintenance frequency and downtime.
Smart Images

Figure CN223374740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of self-priming pump inlet pipes, in particular to a self-priming pump inlet pipe with a separable gas-liquid structure. Background Art
[0002] In the application field of self-priming pumps, especially when handling liquids mixed with gases or impurities, traditional self-priming pump inlet pipes face several technical difficulties in terms of operational efficiency and reliability. Traditional designs often lack an effective gas-liquid separation structure, resulting in insufficient suction and unstable operation due to gas interference inside the pump body. In addition, impurities in the liquid easily accumulate in the pump inlet pipe, causing frequent blockages, increasing wear on the pump body and the frequency of maintenance. These problems not only affect the operating efficiency of the self-priming pump, but also shorten the service life of the equipment and increase the user's maintenance costs. When a large amount of gas is mixed with the liquid, conventional inlet pipes have difficulty effectively separating these gases, causing the gas to enter the pump body with the liquid, disrupting the continuity of the water flow, and thus affecting the self-priming effect. Faced with the complex fluid environment of gas-liquid mixing, the simple filtering structure of the traditional inlet pipe is insufficient to intercept fine impurities, resulting in poor stability during equipment operation, high water flow resistance, and high energy consumption. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems raised in the above background technology.
[0004] The utility model adopts the following technical solution: a self-priming pump inlet pipe with a detachable gas-liquid structure, comprising a pump body, a water outlet pipe and a water inlet pipe fixedly mounted on the surface of the pump body, a separation tank fixedly mounted on the end face of the water inlet pipe, a connecting pipe fixedly mounted on the surface of the separation tank, a filter plate fixedly mounted on the inside of the water inlet pipe, a tank top fixedly mounted on the top of the separation tank, an exhaust hole fixedly mounted on the top of the tank top, partitions fixedly mounted on the inside of the connecting pipe, and the partitions are staggeredly arranged inside the connecting pipe.
[0005] Preferably, a drain pipe is fixedly mounted on the surface of the water inlet pipe, the internal threads of which are connected to a threaded joint, and the connection between the drain pipe and the water inlet pipe is located in front of the filter plate. This facilitates cleaning of impurities in the water inlet pipe before they accumulate, allowing them to be quickly discharged through the drain pipe, reducing the occurrence of blockages, improving pump operating efficiency, and extending the service life of the equipment.
[0006] Preferably, a limit bar is fixedly mounted inside the tank top, and a filter layer is fixedly mounted inside the limit bar. The filter layer is made of a porous polymer material. Here, the filter layer is installed on the top of the separation tank, ensuring that air passes through the filter layer and is discharged from the exhaust hole, while water flows into the pump body under the suction of the self-priming pump.
[0007] Preferably, the surface of the partition is configured as an inclined surface, and the inclined surface of the partition is aligned with the direction of the water flow. This can reduce the resistance of the water flow when passing through the partition, thereby making the gas-liquid separation more efficient, while also reducing the energy consumption of the pump body, optimizing the operating performance of the pump, and improving the stability of the water flow.
[0008] Preferably, the separation tank is fixedly connected to the water inlet pipe and the connecting pipe by quick-release bolts. This makes the installation and removal of the equipment more convenient, facilitates the rapid replacement or cleaning of internal components during maintenance, reduces downtime, facilitates user maintenance, and improves the convenience and maintainability of the equipment.
[0009] Preferably, the filter plate is rotatably connected to a rotating shaft, a fixing rod and blades are fixedly mounted on the surface of the rotating shaft, and a cleaning brush is fixedly mounted on the bottom surface of the fixing rod, and the cleaning brush is located between the blades and the filter plate. Here, when the water flow drives the blades to rotate, the cleaning brush can clean the filter plate as it rotates, effectively preventing impurities from accumulating on the filter plate surface, keeping the filter plate unobstructed, reducing cleaning frequency, and ensuring long-term stable operation of the equipment.
[0010] Preferably, the cleaning brushes conform to the surface of the filter plate, and there are three groups of cleaning brushes, which are distributed circumferentially on the surface of the rotating shaft. This allows the cleaning brushes to fully clean the surface of the filter plate during rotation, improving cleaning efficiency and ensuring that the filter plate is cleaned at all angles, thereby further reducing the risk of clogging and ensuring long-term, unobstructed operation of the equipment.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are:
[0012] 1. In the utility model, a separation tank and a connecting pipe structure are installed at the inlet pipe of the self-priming pump, and the water flow resistance is reduced by the staggered inclined partitions in the connecting pipe, so that the gas-liquid separation is more efficient, so that the water flow is in a stable buffer zone, which optimizes the performance of the pump as a whole and reduces energy consumption. A filter layer is installed inside the top of the separation tank, which further improves the impurity retention effect during the gas-liquid separation process, ensures the purity of the liquid entering the pump body, thereby reducing pump wear and extending the service life of the equipment.
[0013] 2. In the utility model, the fan blades are driven to rotate by the rotating shaft installed on the filter plate, so that the cleaning brush on the fixed rod slides along the surface of the filter plate, thereby realizing automatic cleaning. The cleaning brush fits tightly against the surface of the filter plate, ensuring that the filter plate is thoroughly cleaned at all angles, effectively avoiding blockage caused by accumulation of impurities, reducing the need for manual maintenance, and ensuring that the equipment can operate smoothly for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of a self-priming pump inlet pipe with a separable gas-liquid structure proposed by the utility model;
[0015] Figure 2 The utility model proposes an exploded diagram of the water inlet pipe and the connecting pipe of a self-priming pump inlet pipe with a separable gas-liquid structure;
[0016] Figure 3 This is a schematic diagram of a filter plate for a self-priming pump inlet pipe with a separable gas-liquid structure proposed in the utility model;
[0017] Figure 4 The utility model provides a schematic diagram of a tank top of a self-priming pump inlet pipe with a separable gas-liquid structure;
[0018] Figure 5 The utility model provides a cross-sectional view of a connecting pipe of a self-priming pump inlet pipe with a separable gas-liquid structure.
[0019] Legend:
[0020] 1. Pump body; 2. Water outlet pipe; 3. Water inlet pipe; 4. Drain pipe; 5. Threaded joint; 6. Filter plate; 7. Rotating shaft; 8. Fan blade; 9. Fixing rod; 10. Cleaning brush; 11. Separation tank; 12. Tank top; 13. Exhaust hole; 14. Limiting strip; 15. Filter layer; 16. Connecting pipe; 17. Partition. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1
[0024] See also Figure 1-5The utility model provides a technical solution: a self-priming pump inlet pipe with a detachable gas-liquid structure, comprising a pump body 1, a water outlet pipe 2 and a water inlet pipe 3 fixedly mounted on the surface of the pump body 1, a sewage pipe 4 fixedly mounted on the surface of the water inlet pipe 3, and a threaded joint 5 connected to the internal thread of the sewage pipe 4. The connection between the sewage pipe 4 and the water inlet pipe 3 is located in front of the filter plate 6, which is convenient for cleaning impurities in the water inlet pipe 3 before they accumulate. Impurities can be quickly discharged through the sewage pipe 4, reducing the occurrence of blockage, improving the operating efficiency of the pump and extending the service life of the equipment. A separation tank 11 is fixedly mounted on the end face of the water inlet pipe 3, a connecting pipe 16 is fixedly mounted on the surface of the separation tank 11, a filter plate 6 is fixedly mounted inside the water inlet pipe 3, a tank top 12 is fixedly mounted on the top of the tank top 12, an exhaust hole 13 is fixedly mounted on the top of the tank top 12, a limit strip 14 is fixedly mounted inside the tank top 12, and the limit strip 14 is fixedly mounted inside the A filter layer 15 is installed, and the filter layer 15 is made of porous polymer material. The filter layer 15 is installed on the top of the separation tank 11 to ensure that the air is discharged from the exhaust hole 13 through the filter layer 15, and the water flows into the pump body 1 under the suction of the self-priming pump. A partition 17 is fixedly installed inside the connecting pipe 16. The partitions 17 are staggered inside the connecting pipe 16, and the surface of the partition 17 is set to an inclined surface. The inclined surface of the partition 17 is consistent with the direction of the water flow, which can reduce the resistance of the water flow when passing through the partition 17, thereby making the gas-liquid separation more efficient. At the same time, it can also reduce the energy consumption of the pump body 1, optimize the operating performance of the pump, and improve the stability of the water flow. The separation tank 11 is fixedly connected to the water inlet pipe 3 and the connecting pipe 16 by quick-release bolts, which makes the equipment installation and disassembly more convenient, and is convenient for quick replacement or cleaning of internal components during maintenance, reducing downtime, facilitating user maintenance, and improving the convenience and maintainability of the equipment.
[0025] Example 2
[0026] See also Figure 3 The cleaning brush 10 is arranged on the surface of the filter plate 6 and is cleaned by the fan 8 and the filter plate 6 is cleaned by the fan 8.
[0027] Working principle: When the self-priming pump starts working, the water first enters the connecting pipe 16, which is provided with a plurality of staggered partitions 17. The surface of the partition 17 is inclined, and the inclined surface is consistent with the direction of the water flow. In this way, the water flow will reduce the flow rate of the water flow when flowing through the connecting pipe 16, thereby reducing the water flow resistance, ensuring that the water flow flows smoothly to the separation tank 11, and the gas-liquid separation efficiency is also improved. Then the water flows into the separation tank 11. After the liquid enters the separation tank 11, the gas-liquid separation operation begins. There is an exhaust hole 13 on the top 12 of the tank. When the liquid enters the separation tank 11, the exhaust hole 13 immediately starts to discharge the mixed gas in the liquid. The gas entering the tank 1 is prevented from entering the pump body 1 and disturbing the liquid flow, thereby improving the suction performance of the self-priming pump. During this operation, a tank top 12 is installed on the top of the separation tank 11, and an exhaust hole 13 is provided on the top of the tank top 12. By installing a limit strip 14 and a filter layer 15 inside the tank top 12, the limit strip 14 can make the filter layer 15 stably installed inside the tank top 12. The water flow performs gas-liquid separation operation inside the separation tank 11. The filter layer 15 is made of porous polymer material to ensure that the air passes through the filter layer 15 and is discharged from the exhaust hole 13, while the water flow enters the pump body 1 under the suction of the self-priming pump, and then enters the water inlet pipe 3 In the embodiment, a set of filter plates 6 are built into the water inlet pipe 3. The filter plates 6 effectively intercept larger particles of impurities to prevent them from entering the pump body 1 and causing wear to the internal parts. The inlet pipe ensures that the inside of the pump body 1 remains clean, reducing the risk of blockage caused by accumulation of impurities and extending the working life of the pump. The water inlet pipe 3 is also connected to a sewage pipe 4. The sewage pipe 4 is located in front of the filter plate 6 and is connected by a threaded joint 5, which is convenient for personnel to quickly discharge impurities during the operation of the pump, further reducing the chance of clogging of the equipment, thereby improving the overall working efficiency of the pump body 1. In addition, a rotatable shaft 7 is installed on the filter plate 6, and the shaft 7 is connected to the fan blade 8 , fixing rod 9 and cleaning brush 10. When the water flow drives the fan blade 8 to rotate, the cleaning brush 10 fixed on the rotating shaft 7 slides along the surface of the filter plate 6 to remove the accumulated impurities. The cleaning brush 10 fits tightly with the surface of the filter plate 6 and can effectively clean all angles of the filter plate 6, ensuring the smooth flow of the filter plate 6 and avoiding blockage caused by accumulation of impurities, reducing the need for manual cleaning, and reducing downtime while maintaining efficient operation of the equipment. In addition, the cleaning brushes 10 are divided into three groups and distributed in a circular manner on the surface of the rotating shaft 7 to make the cleaning more uniform, ensuring that all areas of the filter plate 6 are cleaned, thereby further improving the cleaning effect of the system.
[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.
Claims
1. A self-priming pump inlet pipe with a separable gas-liquid structure, comprising a pump body (1), characterized in that: A water outlet pipe (2) and a water inlet pipe (3) are fixedly mounted on the surface of the pump body (1); a separation tank (11) is fixedly mounted on the end surface of the water inlet pipe (3); a connecting pipe (16) is fixedly mounted on the surface of the separation tank (11); a filter plate (6) is fixedly mounted inside the water inlet pipe (3); a tank top (12) is fixedly mounted on the top of the separation tank (11); an exhaust hole (13) is fixedly mounted on the top end of the tank top (12); a partition (17) is fixedly mounted inside the connecting pipe (16); and the partitions (17) are arranged in a staggered manner inside the connecting pipe (16).
2. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 1, characterized in that: A sewage pipe (4) is fixedly mounted on the surface of the water inlet pipe (3), and a threaded joint (5) is connected to the internal thread of the sewage pipe (4). The connection between the sewage pipe (4) and the water inlet pipe (3) is located in front of the filter plate (6).
3. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 1, characterized in that: A limit strip (14) is fixedly installed inside the tank top (12), and a filter layer (15) is fixedly installed inside the limit strip (14).
4. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 1, characterized in that: The surface of the partition (17) is configured as an inclined surface, and the direction of the inclined surface of the partition (17) is consistent with the direction of the water flow.
5. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 1, characterized in that: The separation tank (11) is fixedly connected to the water inlet pipe (3) and the connecting pipe (16) by quick-release bolts.
6. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 1, characterized in that: The surface of the filter plate (6) is rotatably connected to a rotating shaft (7), a fixing rod (9) and a fan blade (8) are fixedly mounted on the surface of the rotating shaft (7), a cleaning brush (10) is fixedly mounted on the bottom surface of the fixing rod (9), and the cleaning brush (10) is located between the fan blade (8) and the filter plate (6).
7. The self-priming pump inlet pipe with a separable gas-liquid structure according to claim 6, characterized in that: The cleaning brushes (10) are in contact with the surface of the filter plate (6). The number of the cleaning brushes (10) is three groups, and the three groups of cleaning brushes (10) are distributed in a circular pattern on the surface of the rotating shaft (7).