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Fault alarm system based on quick-closing valve

A technology of fault alarm and quick closing valve, which can be used in fluid pressure actuation system testing, fluid pressure actuation system safety, valve device, etc., and can solve problems such as low efficiency

Pending Publication Date: 2018-08-03
CHINA RESOURCES POWER HENAN SHOUYANGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Secondly, the monitoring of oil temperature and oil level is also carried out manually, which is inefficient

Method used

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  • Fault alarm system based on quick-closing valve
  • Fault alarm system based on quick-closing valve
  • Fault alarm system based on quick-closing valve

Examples

Experimental program
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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The embodiment of the invention discloses a fault alarm system based on a quick-closing valve, which improves the fault detection efficiency of key parameters such as oil pressure of the fast-closing valve.

[0035] See figure 1 , figure 1 It is a structural schematic diagram of a fault alarm system based on a quick-closing valve disclosed in the first embodiment of the present invention. In order to better illustrate this solution, the embodiment of t...

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Abstract

The invention discloses a fault alarm system based on a quick-closing valve. The fault alarm system comprises a pressure switch, a middle relay, a motor contactor, a time relay and a first alarm, wherein the motor contactor is connected with a first normally-open contact point of the middle relay, the time relay is connected with a second normally-open contact point of the middle relay, and the first alarm is connected with a normally-open contact point of the time relay. According to the scheme of the system, the time relay is added to record the pressure supplementing time of an oil pump motor, when the pressure supplementing time reaches a preset value, the condition that the oil pressure value for pressure supplement of the oil pump motor does not reach an oil pressure value within a normal range is indicated, and at the moment, the normally-open contact point of the time relay is triggered to be connected with the first alarm to give an abnormal oil pressure alarm through the first alarm, so that an operator is prevented from performing inspection on the oil pressure value in real time, and the fault detection efficiency of the oil pressure value of the quick-closing valve isimproved.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a fault alarm system based on a quick-closing valve. Background technique [0002] Quick-closing valve is a new type of full-hydraulic valve used for quick closing on pipelines, steam turbines and other devices. The valve adopts a triple-eccentric metal-sealed butterfly valve body to prevent steam turbine overspeed accidents caused by steam backflow in the extraction pipeline. [0003] Since the quick-closing valve adopts hydraulic control, various parameters such as oil pressure, oil temperature, and oil level are needed for the normal operation of the equipment. Among them, the oil pressure plays a decisive role in the normal operation of the quick-closing valve. The normal action of closing the valve needs to ensure that the oil pressure is in a normal range. When the oil pressure is lower than the minimum value of the pressure switch connected to the outlet of the oil pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00F15B20/00F16K37/00
CPCF15B19/005F15B20/004F16K37/0041
Inventor 王敬冲黎明翟向纪孔亮李明高静侯鹏程江涛逯全阳
Owner CHINA RESOURCES POWER HENAN SHOUYANGSHAN
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