Water pumping system without bottom valve
By designing a bottom valve-less pumping system, and utilizing interconnected water storage tanks and level gauge control, the problem of poor bottom valve sealing was solved, achieving stable pumping and system fault tolerance, and improving the pumping efficiency and reliability of the water pump.
Patent Information
- Application Number
- CN202520730544.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
The foot valve of traditional water pumps is prone to corrosion, which can lead to poor sealing, affecting pumping efficiency. Furthermore, problems in multi-pump systems can impact industrial production.
The system employs a bottom valve-less pumping system. Through the interconnected design of multiple water storage tanks, inlet pipes, outlet pipes, return pipes, and replenishment pipes, the water level is controlled by level gauges and solenoid valves, realizing automatic water replenishment and water sealing functions for the water storage tanks, thus avoiding pumping difficulties caused by poor bottom valve sealing.
Stable water pumping without a bottom valve is achieved, enhancing the system's fault tolerance, eliminating the need for manual inspection and water replenishment, and improving the pumping efficiency and system reliability.
Smart Images

Figure CN223839346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water pumps, and more specifically, to a bottomless water pumping system. Background Technology
[0002] Using water pumps for real-time water supply is a very common method in industrial production and daily life. Compared to using water storage tanks, using water pumps directly avoids the use of large storage tanks and reduces the space occupied. In the process of using water pumps for water supply, supply is usually on demand; that is, the water pump is started when water is needed and turned off when water is not needed.
[0003] Typically, water pump blades need to be submerged in water to ensure efficient and timely water pumping when the pump starts. Therefore, traditional water pumps have a foot valve at the bottom, similar in structure to a check valve. Water from the outside can enter the pump through the foot valve and be drawn away. When the pump stops, the water pressure closes the foot valve, sealing the water inside. The next time the pump is started, it can pump water directly. However, foot valves also have some drawbacks. For example, corrosion can cause them to leak, making it difficult to pump water when the pump starts. Furthermore, the presence of the foot valve can weaken the pump's suction power to some extent. Especially in industrial production with multiple pumps, if the foot valves of multiple pumps malfunction simultaneously, it can significantly impact production. Utility Model Content
[0004] The purpose of this invention is to provide a bottom valve-less water pumping system that can ensure the water pump can pump water normally without a bottom valve.
[0005] This utility model is achieved through the following technical solution: The bottomless pumping system of this utility model includes multiple pumping devices arranged in parallel, and a water replenishment system; the pumping device includes a water storage tank, an inlet pipe connected to the water storage tank, a water pump connected to the water storage tank, and an outlet pipe connected to the outlet end of the water pump; the water replenishment system includes a return pipe connected to the outlet pipe and a water replenishment pipe connected to the water storage tank; the multiple return pipes are interconnected, the multiple water replenishment pipes are interconnected, and the return pipes are connected to the water replenishment pipes.
[0006] Furthermore, the water replenishment system also includes a first manifold that is simultaneously connected to multiple return water pipes, a second manifold that is simultaneously connected to multiple water replenishment pipes, and a connecting pipe for connecting the first manifold and the second manifold.
[0007] Furthermore, the water supply pipe is equipped with a solenoid valve, and the water storage tank is equipped with a level gauge; the level gauge is electrically connected to the solenoid valve.
[0008] Furthermore, a one-way water valve is provided on the return water pipe.
[0009] Furthermore, the water storage tank is equipped with a one-way air valve.
[0010] Furthermore, the water pump is connected to the water storage tank via a conduit; the conduit is connected to the lower side wall of the water storage tank, and the inlet pipe is connected to the upper side wall of the water storage tank.
[0011] Furthermore, the conduit is equipped with a first valve, and the outlet pipe is equipped with a second valve.
[0012] Furthermore, a drain pipe is provided at the lower end of the water storage tank, and a third valve is provided on the drain pipe.
[0013] The technical solution of this utility model has at least the following advantages and beneficial effects: The bottom valve-less water pumping system of this utility model fills the water storage tank with water before use, and then starts the water pump to pump water. After the water pump is turned off, the water in the water storage tank will seal the water pump, and the water pump can be started directly afterward to pump water without the need for a bottom valve to seal the water. This can effectively prevent the situation where water cannot be pumped due to a poor seal of the bottom valve. Furthermore, multiple water storage tanks are indirectly connected. When one or more water storage tanks leak and the corresponding water pump cannot pump water, other water pumps can inject water into the water-deficient water storage tank through the outlet pipe, return pipe, and water supply pipe, so that the water storage tank always maintains a certain amount of water. This eliminates the need for manual inspection and water replenishment of the water storage tanks, making the entire system more fault-tolerant. Attached Figure Description
[0014] Figure 1 A schematic diagram of the bottomless valve pumping system provided in an embodiment of this utility model;
[0015] Figure 2 A two-view structural schematic diagram of the bottomless valve pumping system provided in an embodiment of this utility model;
[0016] Figure 3 A three-view structural schematic diagram of the bottomless valve pumping system provided in this embodiment of the utility model.
[0017] Icons: 11-Water storage tank, 12-Inlet pipe, 13-Water pump, 14-Outlet pipe, 15-Conduit pipe, 16-First valve, 17-Second valve, 18-One-way air valve, 19-Level gauge, 110-Drain pipe, 20-Water replenishment system, 21-Return pipe, 22-Water replenishment pipe, 23-First manifold, 24-Second manifold, 25-Connecting pipe, 26-One-way water valve, 27-Solenoid valve. Detailed Implementation
[0018] Example
[0019] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 3 As shown, the bottomless pumping system of this embodiment includes multiple pumping devices arranged in parallel and a water replenishment system 20. The pumping devices include a water storage tank 11, an inlet pipe 12 connected to the water storage tank 11, a water pump 13 connected to the water storage tank 11, and an outlet pipe 14 connected to the outlet end of the water pump 13. The water replenishment system 20 includes a return pipe 21 connected to the outlet pipe 14 and a water replenishment pipe 22 connected to the water storage tank 11. The multiple return pipes 21 are interconnected, the multiple water replenishment pipes 22 are interconnected, and the return pipes 21 and the water replenishment pipes 22 are interconnected. Specifically, before use, fill the water storage tank 11 with water, then start the water pump 13 to pump water. After turning off the water pump 13, the water in the water storage tank 11 will seal the water pump 13, and then the water pump 13 can be started directly to pump water without the need for a bottom valve to seal the water. This effectively prevents water from not being pumped due to a poor seal of the bottom valve. Furthermore, multiple water storage tanks 11 are indirectly connected. When one or more water storage tanks 11 leak and the corresponding water pump 13 cannot pump water (different water pumps 13 are responsible for different water supplies and will only work when water is needed. Therefore, if there is no water supply for a long time, the water in the water storage tank 11 may slowly leak), other water pumps 13 can inject water into the water-deficient water storage tank 11 through the outlet pipe 14, return pipe 21, and replenishment pipe 22, so that the water storage tank 11 always maintains a certain amount of water. This eliminates the need for manual inspection and replenishment of the water storage tanks 11, making the entire system more fault-tolerant.
[0020] The water replenishment system 20 in this embodiment also includes a first manifold 23 that is simultaneously connected to multiple return water pipes 21, a second manifold 24 that is simultaneously connected to multiple water replenishment pipes 22, and a connecting pipe 25 for connecting the first manifold 23 and the second manifold 24. Specifically, the multiple return water pipes 21 and the multiple water replenishment pipes 22 can be effectively connected together through the first manifold 23, the second manifold 24, and the connecting pipe 25.
[0021] In this embodiment, the water supply pipe 22 is equipped with a solenoid valve 27, and the water storage tank 11 is equipped with a level gauge 19; the level gauge 19 is electrically connected to the solenoid valve 27. Specifically, the level gauge 19 can detect the water level in the water storage tank 11, and when the detected water level is higher than the specified water level, the solenoid valve 27 closes the water supply pipe 22.
[0022] In this embodiment, a one-way valve 26 is provided on the return water pipe 21. Specifically, by providing a one-way valve on the return water pipe 21, water in the return water pipe 21 can be prevented from flowing back into the outlet water pipe 14, thus preventing the outlet water pipes 14 from supplying water to each other.
[0023] In this embodiment, the water storage tank 11 is equipped with a one-way air valve 18. Specifically, the one-way air valve 18 can discharge the gas in the water storage tank 11 to prevent external gas from entering, so that water can enter normally when the water supply pipe 22 supplies water to the water storage tank 11.
[0024] In this embodiment, the water pump 13 is connected to the water storage tank 11 via a conduit 15; the conduit 15 is connected to the lower side wall of the water storage tank 11, and the water inlet pipe 12 is connected to the upper side wall of the water storage tank 11.
[0025] In this embodiment, the conduit 15 is equipped with a first valve 16, and the outlet pipe 14 is equipped with a second valve 17. The lower end of the water storage tank 11 is equipped with a drain pipe 110, and the drain pipe 110 is equipped with a third valve. Specifically, after closing the first valve 16 and the second valve 17, the water pump 13 can be removed or repaired. Opening the third valve on the drain pipe 110 can drain all the water in the water storage tank 11.
[0026] In summary, the bottom valve-less water pumping system of this embodiment allows for water pumping by filling the water storage tank 11 with water before use and then starting the water pump 13. After the water pump 13 is turned off, the water in the water storage tank 11 will seal the water pump 13, allowing the water pump 13 to be started directly without the need for a bottom valve to seal the water. This effectively prevents water from being pumped out due to a poor seal of the bottom valve. Furthermore, since multiple water storage tanks 11 are indirectly connected, if one or more water storage tanks 11 leak and the corresponding water pump 13 cannot pump water, other water pumps 13 can inject water into the water-deficient water storage tank 11 through the outlet pipe 14, return pipe 21, and replenishment pipe 22, ensuring that the water storage tank 11 always maintains a certain amount of water. This eliminates the need for manual inspection and replenishment of the water storage tanks 11, making the entire system more tolerant of faults.
[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A bottomless pumping system, characterized in that: It includes multiple pumping devices arranged in parallel, and a water replenishment system (20); The pumping device includes a water storage tank (11), an inlet pipe (12) connected to the water storage tank (11), a water pump (13) connected to the water storage tank (11), and an outlet pipe (14) connected to the outlet end of the water pump (13). The water replenishment system (20) includes a return water pipe (21) connected to the outlet water pipe (14) and a water replenishment pipe (22) connected to the water storage tank (11); the multiple return water pipes (21) are interconnected, the multiple water replenishment pipes (22) are interconnected, and the return water pipe (21) is connected to the water replenishment pipe (22).
2. The bottomless pumping system according to claim 1, characterized in that: The water replenishment system (20) further includes a first manifold (23) that is simultaneously connected to multiple return water pipes (21), a second manifold (24) that is simultaneously connected to multiple water replenishment pipes (22), and a connecting pipe (25) for connecting the first manifold (23) and the second manifold (24).
3. The bottomless pumping system according to claim 1, characterized in that: The water supply pipe (22) is equipped with a solenoid valve (27), and the water storage tank (11) is equipped with a level gauge (19); the level gauge (19) is electrically connected to the solenoid valve (27).
4. The bottomless pumping system according to claim 1, characterized in that: The return water pipe (21) is equipped with a one-way water valve (26).
5. The bottomless valve pumping system according to claim 1, characterized in that: The water storage tank (11) is equipped with a one-way air valve (18).
6. The bottomless valve pumping system according to claim 1, characterized in that: The water pump (13) is connected to the water storage tank (11) via a conduit (15); the conduit (15) is connected to the lower side wall of the water storage tank (11), and the water inlet pipe (12) is connected to the upper side wall of the water storage tank (11).
7. The bottomless pumping system according to claim 6, characterized in that: The conduit (15) is provided with a first valve (16), and the outlet pipe (14) is provided with a second valve (17).
8. The bottomless pumping system according to claim 1, characterized in that: The lower end of the water storage tank (11) is provided with a drain pipe (110), and a third valve is provided on the drain pipe (110).