Conical valve without middle cavity gap

A cone-shaped valve and clearance technology, which is applied to valve details, valve devices, and valve housing structures, can solve problems affecting the service life of valves, residual media, and corrosion of inner walls of valves, etc., and achieves wide application range, convenient structure processing, The effect of no dead angle in the cavity

Inactive Publication Date: 2021-04-23
ZHEJIANG BETHEL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing valve, there is a large middle cavity gap between the valve body and the valve core, which causes the pipeline medium to enter the middle cavity gap under the action of the pressure difference, thereby corroding the inner wall of the valve, so that the existing valve does not have good corrosion resistance
And the medium that enters the middle cavity gap will be permanently accumulated in the middle cavity gap, resulting in liquid accumulation and medium residue, which will further affect the service life of the valve

Method used

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  • Conical valve without middle cavity gap
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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] refer to figure 1 with figure 2 , a cone-shaped valve without a cavity gap, comprising a cone body and a cone-shaped valve core 1 arranged in the cone body, a communicating flow channel 4 is formed on the cone-shaped valve core 1, and a main flow channel 5 is formed on the cone body. Cone body comprises conical valve body 6 and the bonnet 7 that is fixedly arranged on the conical valve body 6 below, and the valve stem 2 that is integrally arranged with conical valve core 1 is installed on conical valve body 6, conical valve body 6, A middle chamber gap 3 is formed between the valve cover 7 and the conical valve core 1 , and the middle chamber gap 3 is filled with sealing elements.

[0029] The communication passage 4 includes a first flow passage opening 8 located on the outer surface of the conical valve core 1 and a second flow passage opening 9 l...

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PUM

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Abstract

The invention discloses a conical valve without a middle cavity gap. The conical valve comprises a cone, a conical valve element arranged in the cone and a valve rod installed on the cone and connected with the conical valve element, the middle cavity gap is formed between the cone and the conical valve element, a communicating flow channel is formed in the conical valve element, and a main flow channel is formed on the cone. The middle cavity gap is filled with a sealing piece. The conical valve has the following advantages and effects that no connection gap exists between a valve body and the valve element, and therefore the corrosion resistance of the valve is further improved, the service life of the valve is prolonged, the structure is convenient to machine, the application range is wide, zero leakage is realized, no dead corner exists in a cavity, no liquid is accumulated, and no residual medium exists.

Description

technical field [0001] The invention relates to a valve, in particular to a taper valve without a cavity gap. Background technique [0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It has functions such as cut-off, regulation, flow diversion, reverse flow prevention, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. [0003] In the existing valve, there is a large middle cavity gap between the valve body and the valve core, which causes the pipeline medium to enter the middle cavity gap under the action of the pressure difference, thereby c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/02F16K5/16F16K31/02F16K27/06
CPCF16K5/0207F16K5/0235F16K5/0242F16K5/0257F16K5/0271F16K5/167F16K31/02F16K27/062
Inventor 张海兰金克雨吴寿敬叶超超金卡迪金瑞建叶迅良林超李平
Owner ZHEJIANG BETHEL TECH CO LTD
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