Flow-back sewage pump
By designing a re-discharge and diverting device with an integral conical shell structure in the sewage pump, the problems of insufficient reflux efficiency, difficulty in maintenance and increased energy consumption of the sewage pump re-discharge device are solved, and water flow, equipment protection and safety improvement are achieved .
Patent Information
- Application Number
- CN202420983249.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The existing sewage pump reflux drainage device has problems such as insufficient reflux efficiency, difficulty in maintenance and cleaning, difficulty in starting and increased energy consumption, which affects the performance and life of the pump.
A return-discharge sewage pump including a housing, a water inlet interface and a return-discharge interface is designed, with a built-in return-discharge diversion device with a conical shell structure, and passes through the return-discharge diversion channel between the water inlet end and the drain port. It is connected to the return pipe, and adopts a combined structure of the cylinder and cover plate with the lip and groove structure. The water inlet end is fixedly connected by a throat clamp and a locking screw.
Effectively prevent water from pouring backwards, improve system work efficiency and stability, extend equipment life, enhance safety, and reduce failure and maintenance needs.
Smart Images
Figure CN222162935U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sewage pump, in particular to a return-type sewage pump. Background Art
[0002] The return drainage device installed in front of the sewage pump is usually used to improve the efficiency and reliability of the sewage pump in the prior art. The return drainage device is usually composed of a drainage pipe, a valve, a connector and a possible control system. The drainage pipe is responsible for discharging the accumulated water inside the sewage pump, the valve is used to control the water flow, the connector connects the return drainage device and the self-priming device, and the control system may be used to automatically control the drainage process. The return drainage device is usually installed at the water inlet or other appropriate location of the sewage pump to ensure effective drainage. The drainage pipe is connected to the self-priming device through a connector, and the valve is used to control the drainage flow or adjust the drainage operation. The design of the position and connection relationship needs to consider the smoothness and efficiency of drainage. When working, the return drainage device will automatically or manually start according to the set conditions to discharge the accumulated water in the sewage pump. The drainage process may need to be adjusted according to the operating requirements to ensure that the inside of the self-priming device remains dry and clean, thereby improving the self-priming efficiency and equipment life.
[0003] In the piping system, especially in the scenario of using sewage pumps, there are some technical problems and challenges in the front-end mounted backflow device (usually used to prevent water backflow and protect the normal operation of the pump). The following are some problems with the existing technology:
[0004] 1. Insufficient backflow efficiency: The backflow device sometimes cannot completely prevent water backflow, especially when the pressure fluctuates greatly or the pump is shut down, which may cause water to flow back into the pump, affecting the performance and life of the pump.
[0005] 2. Difficulty in maintenance and cleaning: Return water devices require regular maintenance and cleaning to maintain their functionality, but some designs may make these operations difficult, increasing maintenance costs and complexity.
[0006] 3. Difficulty in starting: In some cases, the sewage pump requires a certain initial head or diversion water when starting. The return drainage device may affect this process and make it difficult to start the pump.
[0007] 4. Increased energy consumption: The backflow device may increase the fluid resistance of the system, thereby increasing the energy consumption of the pump.
[0008] Therefore, developing a return sewage pump has become an urgent problem to be solved by those skilled in the art. Utility Model Content
[0009] The utility model provides a return-type sewage pump in order to solve the above-mentioned drawbacks.
[0010] The above-mentioned purpose of the utility model is achieved through the following technical scheme: a return-type sewage pump, comprising a shell, on which a water inlet interface and a return interface are provided, a return diversion device is installed in the shell, one end of the return diversion device is provided with a water inlet end connected to the water inlet interface, and the other end is provided with a drain outlet, a return diversion channel is provided between the water inlet end and the drain outlet, and is connected to the return interface through a return pipe.
[0011] Furthermore, the backflow diversion device is an overall conical shell structure.
[0012] Furthermore, the shell includes a cylinder and a cover plate, and the cylinder and the cover plate are buckled with the groove structure through a lip edge, or are buckled with the groove structure through a spring buckle.
[0013] Furthermore, the water inlet end of the backflow diversion device passes through the water inlet interface and is fixedly connected by a throat clamp and a locking screw.
[0014] The advantages of the utility model compared with the prior art are:
[0015] 1. Improve efficiency: By preventing backflow, the backflow device can keep the water in the pipe flowing smoothly, ensure the normal operation of the sewage pump, and improve the working efficiency and stability of the system.
[0016] 2. Prevent backflow: The backflow device can effectively prevent water backflow, preventing water from flowing back into the water pipe from the outlet when the sewage pump stops working, causing the water in the pipe to flow back into the pump, thereby affecting the normal operation of the pump.
[0017] 3. Protect equipment: By installing a backflow drainage device, the water in the pipeline can be reduced from flowing back into the equipment, thus preventing the equipment from being eroded and damaged by water and extending the service life of the equipment.
[0018] 4. Improve safety: The backflow device can improve the safety of the system, avoid equipment failure and safety hazards caused by backflow, and ensure the safety of equipment and personnel.
[0019] In short, installing a backflow device can effectively solve the problem of sewage pump water pipe backflow, protect equipment, and improve safety and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the exploded structure of the utility model.
[0021] Figure 2 It is a schematic diagram of the overall appearance structure of the utility model.
[0022] Figure 3 It is a cross-sectional view of the utility model.
[0023] Figure 4It is a schematic diagram of water flow direction when the utility model is working. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0025] like Figures 1 to 4 As shown, a return type sewage pump includes a housing, the housing adopts a split assembly structure, the housing includes a cylinder 1 and a cover plate 2, the cylinder 1 and the cover plate 2 are buckled with a lip and a groove structure, or buckled with a spring buckle and a groove structure. In this embodiment, the lip and the groove structure are buckled, such as Figure 1 As shown. A water inlet interface 3 and a return interface 4 are provided on the cover plate 2 of the shell, and a return diversion device 5 is installed in the shell. The return diversion device 5 is an overall conical cover structure. The conical cover structure can effectively prevent backflow in the drainage system and prevent wastewater from flowing back into the clean water pipe. One end of the return diversion device 5 is provided with a water inlet end 6 connected to the water inlet interface 3. The water inlet end 6 of the return diversion device 5 passes through the water inlet interface 3 and is fixedly connected by a throat clamp 7 and a locking screw 8. The other end of the return diversion device 5 is provided with a drain port 9. A return diversion channel 10 is provided between the water inlet end 6 and the drain port 9, and is connected to the return port 4 through a return pipe 11.
[0026] During operation, when the water flow in the pipeline is small, water can flow out from the bottom of the return diverter device 5. When the drainage volume is large, if the return diverter device 5 is not installed, the excessive pressure in the pipe may cause the nozzle to lose control. It may cause pipeline damage and even endanger the safety of the operator. After installing the return diverter device 5, the excess water can be transferred through the diverter block to the outside of the return discharge device through the joint connected to it. The stability of the sewage pump working system is guaranteed and the drainage efficiency is ensured. The return diverter device 5 can slow down the sudden changes in the water flow velocity, thereby reducing or avoiding the occurrence of water hammer and protecting the pipeline system from damage. Because the internal conical structure of the return diverter device 5 can effectively prevent backflow in the drainage system and prevent wastewater from backflowing into the clean water pipe. Help the drainage system maintain a stable working state, reduce the number of failures and maintenance, and extend the service life of the equipment.
[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A backflow sewage pump, comprising a housing, characterized in that: A water inlet interface and a return interface are provided on the shell, and a return diversion device is installed in the shell. One end of the return diversion device is provided with a water inlet end connected to the water inlet interface, and the other end is provided with a drain outlet. A return diversion channel is provided between the water inlet end and the drain outlet, and is connected to the return interface through a return pipe.
2. A return sewage pump according to claim 1, characterized in that: The backflow diverter device is in a conical shell structure as a whole.
3. A return sewage pump according to claim 1, characterized in that: The shell comprises a cylinder and a cover plate, and the cylinder and the cover plate are buckled with the groove structure through a lip edge, or buckled with the groove structure through a spring buckle.
4. A return sewage pump according to claim 1, characterized in that: The water inlet end of the backflow diversion device passes through the water inlet interface and is fixedly connected by a throat clamp and a locking screw.