Plastic lined steel emergency cut-off valve

A shut-off valve, steel-lined plastic technology, used in valve details, safety valves, balance valves, etc., can solve the problems of inability to resist three-acid and two-alkali corrosion, leakage, etc., to improve practicability and scope of application, and solve chemical reactions Effect

Inactive Publication Date: 2015-03-25
HUBEI HUATE SPECIAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the chemical field of dangerous goods, three acids and two bases react chemically with metals, and the existing emergency shut-off valves cannot resist the corr...

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  • Plastic lined steel emergency cut-off valve

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Embodiment Construction

[0015] In order to better understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0016] Aiming at the problem that the existing metal emergency shut-off valve reacts with dangerous chemicals such as three acids and two alkalis, resulting in leakage of dangerous chemicals and even life-threatening injuries to others, the present invention provides a steel-lined plastic emergency shut-off valve. The traditional emergency shut-off valve cylinder adopts the design of built-in contact medium and external non-contact medium. The built-in contact medium design puts the cylinder valve core directly on the valve cover to switch state, and the cylinder valve core directly contacts the medium. The external non-contact medium design uses a cylinder to drive a steering shaft to move to switch state, and the steering shaft directly contacts the medium. The steel-lined plastic emergency ...

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Abstract

The invention provides a plastic lined steel emergency cut-off valve which comprises a valve cover, a valve seat, a cylinder, a spring bottom plate and a compression spring. The valve cover is arranged on the valve seat, the cylinder is arranged on the lower portion of the valve seat, the spring bottom plate abuts against the end of a piston rod of the cylinder, the compression spring is arranged between the valve cover and the spring bottom plate, the valve cover is made of corrosion-resistant plastic materials, the valve seat comprises an outer steel valve body and an inner plastic lining layer, and the inner side of the steel valve body is lined with the plastic lining layer to block contact of media in the valve seat with the steel valve body. According to the plastic lined steel emergency cut-off valve, the built-in non-contact medium design is adopted, flowing through parts are all made of corrosion-resistant plastic and do not generate chemical reactions with transported media, the problem that chemical reactions easily happen between metal and chemicals is solved, practicability is improved, the application range is expanded, and the plastic lined steel emergency cut-off valve is safer and more friendly to the environment.

Description

【Technical field】 [0001] The invention relates to the field of valves, in particular to an emergency cut-off valve. 【Background technique】 [0002] The emergency shut-off valve is also called the safety shut-off valve, which means that in the event of an emergency, the valve will be quickly closed or opened to avoid accidents. [0003] Metal emergency shut-off valves are used on tank vehicles for traditional road transport of liquid dangerous goods, so the only media that can be used for transport is diesel, gasoline, etc. However, in the chemical field of dangerous goods, three acids and two bases react chemically with metals, and the existing emergency shut-off valves cannot resist the corrosion of three acids and two bases, and the transport medium of road transport liquid dangerous goods tank vehicles reacts chemically with metal products , which is prone to leakage. 【Content of invention】 [0004] In view of this, in order to overcome the deficiencies of the prior a...

Claims

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Application Information

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IPC IPC(8): F16K17/40F16K17/38F16K27/00F16K27/08F16K41/02
CPCF16K17/40F16K17/383F16K27/08F16K41/02
Inventor 谢元春王伦科何小三赵荣宾
Owner HUBEI HUATE SPECIAL EQUIP CO LTD
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