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Governor main distribution electric neutral position and proportional valve neutral position adjusting method

An adjustment method and technology of the governor, which are applied in the directions of hydroelectric power generation, machine/engine, engine components, etc., can solve the problems of the governor's main configuration and the frequent movement of the guide vane, etc., and achieve the effect of ensuring stable operation.

Inactive Publication Date: 2016-11-16
CHINA YANGTZE POWER
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  • Abstract
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Problems solved by technology

Designed to solve the problem of frequent movement of the governor main distribution and guide vanes

Method used

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  • Governor main distribution electric neutral position and proportional valve neutral position adjusting method

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Embodiment Construction

[0033] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as figure 1 , a method for adjusting the neutral position of the main power distribution of the governor and the neutral position of the proportional valve, which comprises the following steps:

[0035] The first step is to adjust the central position of the main distribution. Adjust the central position of the main distribution valve by adjusting the screw thread of the main distribution valve core, and observe whether the position of the guide vane changes. If the position of the guide vane does not change after 15 minutes, the central position of the main distribution The adjustment is completed; if the position of the guide vane changes within 15 minutes, adjust the position of the main valve core in reverse according to the opening and closing direction of the guide vane action, and the adjustment of the position of the valve core can be...

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Abstract

The invention relates to a governor main distribution electric neutral position and proportional valve neutral position adjusting method. The method comprises the steps of: (1) main distribution neutral position adjustment; (2) primary adjustment of a main distribution neutral position sensor zero position; (3) zero point and full point adjustment of a guide blade main connecting sensor; and (4) fine adjustment of a main distribution neutral position sensor and a proportional valve neutral position. The method is suitable for a hydropower unit using a proportional valve (or such redundant configurations as the proportional valve and a stepper motor), the main distribution and a servomotor as actuation structure forms, and aims to solve the frequent action problem of the governor main distribution and a guide blade.

Description

technical field [0001] The invention relates to a method for adjusting the neutral position of the main power distribution of a governor and the neutral position of a proportional valve, which belongs to the field of governor devices. Background technique [0002] At present, the adjustment of the main mechanical neutral position of the turbine governor is usually to adjust the main matching spool to a certain position in the middle of the oil port of the switch cavity of the valve sleeve (the field is called the cover range), as long as the oil port of the valve core is not in contact with the oil port of the valve sleeve. If it is connected, it is considered qualified. Set the electrical neutral sampling value at this time to the electrical neutral sampling channel as the zero point, even if the adjustment of the electrical neutral is completed, and the proportional valve neutral usually does not change the setting. This method has the following problems: [0003] 1. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B15/04
CPCF03B15/04Y02E10/20
Inventor 常中原孔丽君邓勇涂勇李初辉
Owner CHINA YANGTZE POWER
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