Method and system for detecting water leakage amount of one-way gulp valve of vertical water turbine spindle center hole

By setting a level gauge with a difference in elevation along the axial direction in the central hole of the vertical turbine spindle, the leakage amount is calculated, and the problem of underwater detection of leakage amount is solved, a simple and effective detection method is realized, and equipment status evaluation is provided.

CN120292005APending Publication Date: 2025-07-11HARBIN ELECTRIC MASCH CO LTD +1
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Patent Information

Application Number
CN202510409362.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

The prior art cannot directly detect the leakage of the one-way gas replenishment valve of the spindle center hole of the vertical turbine in service unit underwater.

Method used

Two liquid level gauges with elevation difference axially arranged in the central hole of the spindle of the vertical turbine. By calculating the triggering time interval of the two liquid level gauges and the overcurrent diameter and vertical distance of the central hole of the spindle, the leakage amount is calculated.

Benefits of technology

It realizes the leakage of water in the one-way gas filling valve of the central hole of the vertical turbine spindle underwater. The detection method is simple and easy to operate, and can warning of potential risks in advance and provide guidance on equipment status assessment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method and system for detecting water leakage of a vertical water turbine spindle center hole one-way gulp valve, and belongs to the technical field of hydroelectric generation. The problem that in the prior art, the water leakage amount of a spindle center hole one-way gulp valve cannot be directly checked underwater is solved. Two liquid level meters with an elevation difference are axially arranged in a central hole of a main shaft, a water turbine set is started before detection, the water turbine set is shut down after the water turbine set stably operates for a preset time in a rotating vortex zone, and then the triggering time interval of the two liquid level meters is recorded; and the water leakage amount of the one-way gulp valve of the vertical water turbine spindle center hole is calculated based on the overflowing diameter of the vertical water turbine spindle center hole, the vertical distance between the centers of the two liquidometers and the triggering time interval of the two liquidometers. The device is mainly used for detecting the water leakage amount of the vertical water turbine spindle center hole one-way gulp valve.
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