Valve

A valve and valve stem technology, applied in valve details, valve devices, engine components, etc., can solve problems such as easy leakage of valves, and achieve the effect of solving easy leakage

Inactive Publication Date: 2017-12-08
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a valve to solve the problem that the valves in the prior art are easy to leak

Method used

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0021] For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encomp...

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Abstract

The invention provides a valve. The valve comprises a valve body, a valve rod, a corrugated pipe assembly and flange, wherein the valve rod is arranged in the valve body in a penetrating mode, the bottom end of the valve rod is provided with a step, the step is a circumferential circular ring, the corrugated pipe assembly is of a drum-like structure and arranged on the valve rod in a sleeving mode, the first end of the corrugated pipe assembly is in sealing connection with the step, the valve rod penetrates through the flange, the flange is connected with the valve body, and the second end of the corrugated pipe assembly is in sealing connection with the flange. According to the technical scheme of the valve, the problem that a valve is prone to leaking in the prior art is effectively solved.

Description

technical field [0001] The invention relates to the technical field of valve sealing, in particular to a valve. Background technique [0002] The sealing forms of valves in the field of coal oil chemical industry usually include packing seals and metal bellows seals, among which metal bellows seals are suitable for high-temperature, high-pressure, toxic, easy-leakage, zero-leakage and other process medium environments. Features, the overall metal bellows sealing structure is used in many harsh working conditions. However, the existing metal bellows are not tightly sealed under high temperature and high pressure working conditions. Contents of the invention [0003] The main purpose of the present invention is to provide a valve to solve the problem that the valves in the prior art are easy to leak. [0004] In order to achieve the above object, the present invention provides a valve, including: a valve body; a valve stem, the valve stem is pierced in the valve body, the ...

Claims

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Application Information

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IPC IPC(8): F16K41/10
CPCF16K41/10
Inventor 李卓李刚李海宾钟杰蔡波侯石磊
Owner CHNA ENERGY INVESTMENT CORP LTD
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