CN201705984U

CN201705984U - U-shaped elastic sealing structure

Info

Publication number: CN201705984U
Application number: CN2010202337638U
Authority: CN
Inventors: 陈彦; 史强修; 陈红方
Original assignee: WUXIN INTELLIGENT AUTOMATIC CONTROL ENGINEERING Co Ltd
Current assignee: Wuxi Smart Auto Control Engineering Co Ltd
Priority date: 2010-06-13
Filing date: 2010-06-13
Publication date: 2011-01-12
Anticipated expiration: 2020-06-13

Abstract

The utility mode relates to a sealing structure, in particular to a U-shaped elastic sealing structure for a top-mounted ball valve. The U-shaped elastic sealing structure is characterized in that a U-shaped ring is formed by stamping stainless steel plate; the inner side of the U-shaped ring is provided with a U-shaped groove which is internally provided with a spring; the U-shaped ring is arranged between a valve body and a valve seat. As the U-shaped ring is formed by stamping stainless steel plate, the U-shaped elastic sealing structure has good elasticity, and solves the problems of expansion caused by heat and contraction caused by cold under the condition of high temperature and large temperature difference; and as a metal structure instead of plastic structure is adopted, the U-shaped elastic sealing structure greatly enhances the capabilities of high temperature resistance and high pressure resistance, and also can carry out compensation on wear and deformation of the valve seat and the ball valve, thus effectively prolonging the service life of the valve and the equipment.

Description

U type elastic sealing structure

Technical field

The utility model relates to a kind of sealing configuration, specifically a kind of roof-mounted ball valve U type elastic sealing structure.

Background technique

Along with economic development, the industrial automation controlling level is in continuous improve, thus to the requirement of valve reliability in the process control also in continuous raising.This just also has higher requirement to the sealability of valve.In prior art, existing roof-mounted ball valve generally adopts teflon gasket as the seal element between valve seat and the valve body, can't adapt to the working environment of high temperature, high pressure, poor flexibility, life-span is short, and effect is undesirable, can't guarantee the long-term excellent sealing performance of valve especially.Even influence complete equipment and normally move, cause the tremendous economic loss.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, thereby a kind of hard sealing structure that can adapt to high temperature, high pressure, good springiness, long service life is provided, and can guarantee device security, operation reposefully, reduces maintenance cost, enhances productivity.

The technological scheme that provides according to the utility model, U type elastic sealing structure comprises valve body, valve seat, U type ring, spring, valve ball, feature is: U type ring is that stainless steel materials is stamped to form, be provided with U type groove in U type ring inboard, in the U type groove spring is housed, described U type ring be arranged on and valve body and valve seat between.

Compared with the prior art the utility model has the following advantages:

1, because U type ring adopts the stainless steel materials impact briquetting, has better elastic, solved the expand with heat and contract with cold problem of valve seat under high temperature and big temperature difference situation;

2, owing to adopt metal but not plastic construction has been strengthened ability high temperature resistant, high pressure greatly;

3, can be at any time the wearing and tearing and the distortion of valve seat, valve ball be compensated, effectively promoted the working life of valve and equipment.

Description of drawings

Fig. 1 is the utility model user mode figure.

Fig. 2 is the utility model structural representation.

Embodiment

Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:

As shown in Figure 1, U type elastic sealing structure is made of U type ring 2, spring 3, valve body 1, valve seat 4, valve ball 5.

U type ring 2 is provided with U type groove for stainless steel materials is stamped to form in U type ring 2 inboards in the utility model, in the U type groove spring 3 is housed.Because the elastic force effect of U type ring 2 and spring 3, valve seat 4 sealing surfaces are pressed in and form the sealing of first road on the valve ball 5, form second, third seal structures simultaneously between U type ring 2 and valve body 1, the valve seat 4.

Because U type ring 2 adopts the stainless steel materials impact briquetting, strengthened ability high temperature resistant, high pressure greatly, simultaneously because U type ring 2 has better elastic, can be at any time the wearing and tearing and the distortion of valve seat 4, valve ball 5 be compensated, also solve the expand with heat and contract with cold problem of valve seat 4 under high temperature and big temperature difference situation, further guaranteed sealing effect, effectively promoted the working life of valve and equipment, reduce the maintenance and the cost of overhaul, improved business efficiency.

Claims

1. U type elastic sealing structure, comprise valve body (1), U type ring (2), spring (3), valve seat (4), it is characterized in that: be provided with U type groove in U type ring (2) inboard, in the described U type groove spring (3) be housed, described U type ring (2) be arranged on and valve body (1) and valve seat (4) between.

2. U type elastic sealing structure as claimed in claim 1 is characterized in that in the U type groove of described U type ring (2) spring (3) being housed.