Hydropower station gate gliding lifting and alarming method

A technology for hydropower stations and gates, applied in water conservancy projects, program control, sea area engineering, etc., can solve the problems of main equipment loss, unfavorable manual intervention, smashing of passing vehicles, etc., and achieve the effect of avoiding misoperation and abnormal opening of gates
CN113777992APending Publication Date: 2021-12-10CHINA YANGTZE POWER
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINA YANGTZE POWER
Publication Date
2021-12-10

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Abstract

The invention relates to a hydropower station gate gliding lifting and alarming method, which comprises the following steps of: introducing a 'gate glide lifting enabling flag bit' into a gate control system through three gate opening alarm action value variables of KD_ALARM1, KD_ALARM2 and KD_ALARM3, three gate opening alarm reset value variables of KD_Reset1, KD_Reset2 and KD_Reset3, and four timer time variables of T_Value1, T_Value2, T_Value3 and T_Value4; determining the setting and resetting of a 'gate gliding to an automatic lifting position mark', a 'gate gliding to an alarm position mark' and a 'gate gliding to an accident position mark', and starting a gliding lifting monitoring function after the gate is normally opened to a full-open position; forbidding the gliding lifting monitoring function under the working conditions that the gate is cut off, overhauled and debugged, the gate is fully closed or temporarily opened to a certain middle position and a power station normally commands to close the gate, so that the risks of abnormal gate opening, abnormal alarm of a centralized control system and misoperation of other related equipment caused by the flag bit are avoided.
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Description

technical field

[0001] The invention belongs to the technical field of lubricating system control, and relates to a method for sliding and raising gates of a hydropower station and giving an alarm. Background technique

[0002] The gates of hydropower stations are usually powered by hydraulic pumps to open and close the gates. When the gates do not need to be opened and closed, the hydraulic pumps are in a stopped state. When the gate is working normally, after the gate is opened to the fully open position, the pipeline in the lower chamber of the hydraulic cylinder is blocked by the cartridge valve, so that the lower chamber of the hydraulic cylinder holds the oil pressure to keep the gate in the fully open position. However, due to the inevitable internal leakage of the piston of the hydraulic cylinder and the inevitable slight leakage of the spool inside the cartridge valve, after the gate is fully opened, there will be varying degrees of decline over time.

[0003] In r...

Claims

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