Oxygen manual stop valve safe operation method and tool

Abstract

The invention relates to an oxygen manual stop valve safe operation method and tool. The oxygen manual stop valve safe operation method comprises the steps that before operation, a disk is fixed to a hand wheel of an oxygen manual stop valve, a circle of protruding teeth are arranged at the outer edge of the disk, and the outermost ends of the protruding teeth stretch out of the outer edge of the hand wheel; and during operation, at the handheld end of a handheld operation rod outside an anti-explosion wall, the operation end of the operation rod is stretched to the oxygen manual stop valve inside the anti-explosion wall by an operator, the operation end of the operation rod is a sleeve ring, an opening of the sleeve ring can contain the protruding teeth and is formed in the side surface of the operation rod, the sleeve ring is arranged on the protruding teeth in a sleeving mode, then the operation rod is forwards pushed or backwards pulled, the protruding teeth drive the disk and the hand wheel to move, and thus opening and closing of the oxygen manual stop valve are achieved. The oxygen manual stop valve safe operation method and tool are high in safety, easy to operate, simple in transformation and savable in cost.

Description

technical field [0001] The invention belongs to the field of safe operation of valves, and in particular relates to a method for safe operation of an oxygen manual stop valve and an operating tool. Background technique [0002] Oxygen, as a combustion-supporting medium, may react with carbon in the storage container (steel material) under certain conditions such as friction, impact, high temperature and sparks, resulting in a fire and explosion accident. In the oxygen transmission and distribution process, the valve belongs to the working condition where the air flow is disturbed and the impact is the most severe. Because the workers are working on the valve at a close distance to open the oxygen valve under pressure (operating the valve handwheel), it is easy to cause the valve differential pressure control to fail. Stability, cleanliness of pipelines and valves are not up to standard, etc., resulting in fire and explosion accidents from time to time. [0003] Due to the n...

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Problems solved by technology

[0004] Due to the non-standard special order of the oxygen valve, the cost is increased by about 20% compared with the ordinary purchased oxygen valve

For the ordinary oxygen valves installed in most of the oxygen pressure regulating stations that have been put into operation at present, it is impossible to directly add bevel gear steering structure and lengthen the valve stem on site. It is not economical to replace the special valve with a new structure to ensure production, or to return the dismantled ordinary oxygen valve to the factory for modification and then put it into use

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