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Single-seat flexible seal valve device

A soft sealing and valve device technology, applied in the field of regulating valves, can solve the problems of inability to achieve precise fluid control, and achieve the effects of saving manufacturing costs, simple structure and reliable performance

Inactive Publication Date: 2013-04-24
ZHEJIANG SUPCON FLUID TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The first purpose of the present invention is to provide a single-seat soft-sealing valve device to solve the technical problem that the prior art adopts a first-stage sealing pair structure and cannot achieve precise control of the fluid, that is, to meet the strict sealing requirements

Method used

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Embodiment Construction

[0038] The present invention is described in detail below with reference to accompanying drawing:

[0039] In order to achieve the purpose of the present invention, the present invention provides a design scheme of a novel single-seat soft-sealing valve device.

[0040] see Figure 2 to Figure 5 , the new single-seat soft-sealing valve device includes:

[0041] Valve body 27, which has a fluid inlet and a fluid outlet of a large S-shaped flow channel;

[0042] The valve seat 24 of annular structure can be arbitrarily micro-moved in the radial direction of the valve body 27;

[0043] a first seal 25, which is arranged between the valve seat 24 and the valve body 27;

[0044] The pressure sleeve 23 is arranged inside the valve body 27, and its circumference opens a window that is conducive to fluid flow (this point will be introduced in the follow-up, and will be omitted here. This example does not necessarily use the above structure, and the above is just an example. only);...

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Abstract

The invention discloses a single-seat flexible seal valve device which comprises a valve body, a valve seat with an annular structure, a pressing sleeve, a first sealing element, a valve core component, a valve rod, an upper valve deck, a guide sleeve and a second sealing element. The valve body is provided with a fluid inlet and a fluid outlet of a large S-shaped flow channel; the valve seat radially and finely moves in the valve body; the first sealing element is arranged between the valve seat and the valve body; the pressing sleeve is arranged in the valve body; the valve core component further comprises a valve core, an elastic supporting piece and a soft sealing ring, the elastic supporting piece and the soft sealing ring are arranged in a groove of the valve core, and the soft sealing ring is supported by the elastic supporting piece; the valve rod is connected with the valve core component; the upper valve deck is arranged at the position of an opening at the upper end of the valve body; the guide sleeve is inlaid in the upper valve deck and provides good guiding for the valve core component; and the second sealing element is pressed in the valve body by the upper valve deck, the valve seat and the valve core form an angle seal, a valve seat surface and the soft sealing ring are elastically sealed, and a part of forces which the valve core applies to the valve seat is directly transmitted to the valve seat when the valve core and the valve seat are finally in a closed position state so that the soft sealing ring can be prevented from being damaged by overloading.

Description

technical field [0001] The invention relates to the technical field of regulating valves, in particular to a single-seat soft-seal regulating valve of regulating cut-off type. Background technique [0002] Pneumatic film regulating valve is a kind of control device in the combination instrument of pneumatic unit. It is one of the important devices in the automatic adjustment system of the production process. It can be widely used in automatic adjustment and remote control of chemical industry, petroleum, metallurgy, electric power, light textile industry. At present, the commonly used pneumatic film regulating valve is mainly composed of a regulating valve and an actuator, and the two are connected by a push rod connected in the middle. A control valve is a machine that controls fluid movement. A traditional control valve includes a valve body, a spool head, a spool rod, a valve seat, etc. The valve body has an inner cavity that is covered by the spool head in the spool par...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K1/32F16K1/46F16K27/02
Inventor 郭学宁高明星王金商喆威
Owner ZHEJIANG SUPCON FLUID TECH
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