Multifunctional control valve for water pump

By introducing a moving and buffering mechanism into the multi-functional control valve for water pumps, and utilizing water flow pressure and centrifugal force of the spiral blades, the valve can be closed in stages, thus solving the problem of water hammer damage to the equipment and improving the safety and stability of the equipment.

CN116697112BActive Publication Date: 2026-04-17WENLING HUANLI ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202310577326.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-22
Publication Date
2026-04-17
Estimated Expiration
2043-05-22

AI Technical Summary

Technical Problem

In existing water pump multi-functional control valves used in high-rise building water supply systems, the rapid closure of the valve can cause water hammer, which may damage the device and affect the use of the water supply system and equipment safety.

Method used

A multifunctional control valve was designed, comprising a valve body, upper pump cover, main shaft, valve seat, valve mechanism, moving mechanism, and buffer mechanism. The moving mechanism is driven to rise by water flow pressure, and the buffer mechanism slows down the closing speed. Centrifugal force generated by the spiral blades and elastic force of the buffer spring are used to achieve staged valve closure and reduce water hammer effect.

Benefits of technology

It effectively reduces water hammer, improves equipment safety and stability, extends service life, has a wide range of applications, requires no professional debugging, and adapts to pressure and flow changes during pump start-up and shutdown.

✦ Generated by Eureka AI based on patent content.
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Abstract

This invention relates to the field of valve technology, specifically to a multifunctional control valve for water pumps, comprising a valve body, an upper pump cover, a main shaft, a valve seat, a valve mechanism, a moving mechanism, and a buffer mechanism. The valve body is disposed in a pipeline transporting liquid. A sealing element is fixedly installed inside the valve body. The main shaft element passes through the sealing element and is fixedly installed inside the valve body. The valve seat is fixedly installed inside the valve body. The moving mechanism passes through the main shaft element and is installed on the valve mechanism. When the water pump is turned on, the moving mechanism can rotate and rise along the main shaft element with the help of water flow. Thus, the moving mechanism can cooperate with the buffer mechanism to slow down the descent speed and reduce water hammer. The buffer mechanism passes through the main shaft element and is fixedly installed at the lower end of the sealing element. By setting up the moving mechanism and the buffer mechanism, the present invention effectively reduces water hammer by slowing down the descent speed of the valve mechanism.
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