Experimental equipment for detecting sealing performance of floating ball valve

CN223376862UActive Publication Date: 2025-09-23GUOKAI (FUJIAN) FIRE VALVE TESTING CO LTD
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Patent Information

Application Number
CN202520140163.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-09-23
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

When testing the sealing performance of a float valve, existing experimental equipment cannot accurately determine whether the valve is completely closed. The visual inspection method is easily affected by water residue, making it difficult to distinguish the sealing performance.

Method used

An experimental device was designed, which included a float valve, a detector, a back cover, a needle valve, a valve body, a valve stem, a ball valve, a water tank and a joint pipe. A water pump was used to drive the water flow to control the opening and closing of the float valve. The sealing of the valve core was detected by combining a detection structure and an electrical signal sensor, and the sealing was judged through a conductive circuit.

Benefits of technology

The valve core sealing performance can be accurately detected, which avoids the error of visual observation and ensures the accuracy of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of floating ball valve detection, and discloses experimental equipment for detecting the sealing performance of a floating ball valve, which comprises the floating ball valve, a detector, a rear cover, a needle valve, a valve body, a valve rod, a ball valve, a water tank and a joint pipe. The two copper bars are electrically conducted through water to form a closed loop, signals are transmitted into a processor through an inductor in the sealing block after the closed loop is formed, and it is determined that sealing leakage occurs at the position of the valve element at the lower end of the valve rod when the closed loop is inducted, so that the effect of detecting the sealing state is achieved. After detection is finished, water flows out of the discharge hole and does not conduct electricity any more, it is avoided that whether liquid permeates or not is inconvenient to observe visually when water leaks in a sealed mode, and the problem that sealing performance is not easy to distinguish through visual inspection is solved.
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