CN104455530A - Valve seat combination structure easy and convenient to maintain - Google Patents
Valve seat combination structure easy and convenient to maintain Download PDFInfo
- Publication number
- CN104455530A CN104455530A CN201410686888.9A CN201410686888A CN104455530A CN 104455530 A CN104455530 A CN 104455530A CN 201410686888 A CN201410686888 A CN 201410686888A CN 104455530 A CN104455530 A CN 104455530A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve body
- ring
- seats
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
Abstract
The invention relates to a valve seat combination structure easy and convenient to maintain. The valve seat combination structure comprises a valve body, valve seats, a valve ball, check rings, spring seats and springs. A cross channel is arranged in the valve body, the valve seats are coaxially and symmetrically arranged on the two sides in the valve body in the transverse direction, and the valve ball is coaxially and rotatably arranged between the valve seats on the two sides. Inward convex shoulders are arranged at the positions, on the transverse outer sides of the valve seats, of the valve body, the check rings, the spring seats and the springs are sequentially and coaxially arranged between the outer edges of the valve seats and the inward convex shoulders of the valve body, a supporting ring is arranged between each valve seat and the corresponding check ring, sealing rings are arranged between the supporting rings and the valve seats, the diameter of the outer edges of the supporting rings is larger than that of the valve seats, opening plates are symmetrically arranged between the outer edges of the supporting rings at the two transverse ends of the valve ball in an abutting mode, and the opening plates are arranged in the positions, on the radial outer sides of the valve seats, of the valve body and are telescopic rod devices. The valve seat combination structure is convenient to assemble and maintain, the valve seats or the ball can be directly replaced, maintenance time is saved, work efficiency is improved, and maintenance cost is effectively lowered.
Description
Technical field
The invention belongs to valve field, especially a kind of valve seat combination structure of easy maintenance.
Background technique
At present, existing upper-mounting type ball valve is mainly made up of spheroid, valve seat and seal ring.Existing upper-mounting type ball valve, the assembling of its spheroid, valve seat, maintenance difficult, and can not on-line maintenance, product maintenance cost is high.
Following published existing patented technology is found through retrieval:
The Quick change valve (CN103322225A) that valve plate, valve seat can be dismantled online, solves easily damaged parts and changes difficulty, the problem that maintenance cost is high.Valve gap and valve body bolt are connected, the inner round wall of valve gap be that the vertical face of the upper flange of L shape and horizontal plane are connected above respectively with cross section, upper flange is connected on valve gap by the first screw, seal with seal ring between upper flange and valve gap, cross section is the circular groove that the ceramic valve seat of L shape is positioned at the lower horizontal plane of upper flange, trim ring coordinates with the ring-shaped step of ceramic valve seat, trim ring is connected on upper flange by the second screw, valve plate is flexibly connected with pivoted arm, rotating shaft and pivoted arm are connected, and the interior circular diameter of valve gap is greater than the external diameter of valve plate.
A kind of exchangeable valve seat safety check (203532877U), comprise valve body, valve gap and flap, valve gap is fixed on valve body by stud, be provided with valve seat in valve body, flap coordinates with valve base sealing, and flap is fixed in valve body by snap ring, flap is provided with pin shaft hole, the both sides wall portion of valve body offers the corresponding and axis hole run through, and pin shaft hole and axis hole form hinged cooperation by the bearing pin inserted, and the end of axis hole is sealed by plug screw.The utility model overcomes the defect that in prior art, the valve seat of general check valve is non-exchange, by above-mentioned design, the valve seat of safety check can be changed easily, reduce maintenance cost, there is simple and compact for structure, that assembling is quick, reliability is strong advantage.
Comparative analysis, compared with prior art there is larger difference technical characteristics in the technology contents of present patent application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide that a kind of structure is simple, design science, be convenient to install, the valve seat combination structure of safe and reliable easy maintenance.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of valve seat combination structure of easy maintenance, comprise valve body, valve seat, valve ball, back-up ring, spring seat and spring, be shaped with crosspassage in valve body, in valve body, both sides transverse uniaxial is symmetrically installed with valve seat, and between the valve seat of these both sides, coaxial rotation is provided with valve ball; The valve body of valve seat lateral outer side is shaped with internal shoulder, back-up ring, spring seat and spring is coaxially installed with successively between valve seat outer and the internal shoulder of valve body, the surface of contact of valve ball and valve seat is provided with elastic seal ring, it is characterized in that: between valve seat and back-up ring, a bracing ring is all installed, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
And the end face of described bracing ring is made as U-groove bevel structure.
Advantage of the present invention and good effect are:
The invention provides assembling easy to maintenance, directly can change valve seat or spheroid by line, save engineering time, promote working efficiency, and effectively reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is the broken section of sealing configuration side view of the present invention;
Fig. 2 is sealed supporting ring structure schematic diagram in Fig. 1;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is overall package plan structure sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of valve seat combination structure of easy maintenance, comprise valve body 4, valve seat 6, valve ball 7, back-up ring 3, spring seat 2 and spring 1, be shaped with crosspassage in valve body, in valve body 4, both sides transverse uniaxial is symmetrically installed with valve seat 6, and between the valve seat of these both sides, coaxial rotation is provided with valve ball 7; In order to keep the sealing of valve seat, the valve body of valve seat lateral outer side is shaped with internal shoulder, between valve seat outer and the internal shoulder of valve body, be coaxially installed with back-up ring 3, spring seat 2 and spring 1 successively, this spring continues the pretightening force providing transverse uniaxial, makes valve seat and valve ball keep sealing; The surface of contact of valve ball and valve seat is provided with elastic seal ring.
Innovative point of the present invention is:
One bracing ring 5 is all installed between valve seat and back-up ring, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate 8, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
Shown in accompanying drawing 3, the end face of bracing ring is made as U-groove bevel structure, thus when not tearing bracing ring open, uses distraction plate to strut the bracing ring of both sides, can by top dismounting and change valve seat or valve ball.
The installation method of this structure is as follows:
Valve component (comprising seal ring, bracing ring, back-up ring, spring seat, spring) is loaded in valve body, by 8 struts, the modular support such as bracing ring are opened (spring is compressed), spheroid and valve seat combination are loaded in cavity, strut is unclamped and takes out, valve component to be resumed work state by spring-force driven dual, only with strut, bracing ring assembly need be strutted during maintain and replace, valve seat and spheroid are taken out.This structure installment is convenient, and maintenance cost is low.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (2)
1. the valve seat combination structure of an easy maintenance, comprise valve body, valve seat, valve ball, back-up ring, spring seat and spring, be shaped with crosspassage in valve body, in valve body, both sides transverse uniaxial is symmetrically installed with valve seat, and between the valve seat of these both sides, coaxial rotation is provided with valve ball; The valve body of valve seat lateral outer side is shaped with internal shoulder, back-up ring, spring seat and spring is coaxially installed with successively between valve seat outer and the internal shoulder of valve body, the surface of contact of valve ball and valve seat is provided with elastic seal ring, it is characterized in that: between valve seat and back-up ring, a bracing ring is all installed, between this bracing ring and valve seat, seal ring is installed, the outer of bracing ring is diametrically greater than valve seat, between the bracing ring outer of valve ball transverse ends, equal symmetry is top-loaded with a distraction plate, this distraction plate is positioned at the valve body of the radial outside of valve seat, and this distraction plate is Telescopic rod device.
2. the valve seat combination structure of easy maintenance according to claim 1, is characterized in that: the end face of described bracing ring is made as U-groove bevel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686888.9A CN104455530A (en) | 2014-11-25 | 2014-11-25 | Valve seat combination structure easy and convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686888.9A CN104455530A (en) | 2014-11-25 | 2014-11-25 | Valve seat combination structure easy and convenient to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104455530A true CN104455530A (en) | 2015-03-25 |
Family
ID=52902053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410686888.9A Pending CN104455530A (en) | 2014-11-25 | 2014-11-25 | Valve seat combination structure easy and convenient to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104455530A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948763A (en) * | 2015-07-06 | 2015-09-30 | 昆山维萨阀门有限公司 | Top entry type high-temperature hard seal ball valve |
| CN105003677A (en) * | 2015-04-16 | 2015-10-28 | 上海联科阀门成套设备有限公司 | Ball valve |
| CN110805715A (en) * | 2019-11-16 | 2020-02-18 | 永嘉企达知识产权咨询有限公司 | Change disk seat ball valve on line |
| CN112344051A (en) * | 2020-12-07 | 2021-02-09 | 江苏神通阀门股份有限公司 | Cryogenic upper-mounted ball valve and assembling method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050269542A1 (en) * | 2004-06-04 | 2005-12-08 | Scaramucci John P | Bearing retainer for trunnion mounted ball valve |
| CN203146892U (en) * | 2013-02-04 | 2013-08-21 | 精工阀门有限公司 | Fixing ball valve |
| CN103711929A (en) * | 2013-12-13 | 2014-04-09 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN104084931A (en) * | 2014-07-07 | 2014-10-08 | 苏州纽威阀门股份有限公司 | Ball valve installing and dismantling tool and method |
| CN204312751U (en) * | 2014-11-25 | 2015-05-06 | 天津百利展发集团有限公司 | The valve seat combination structure of easy maintenance |
-
2014
- 2014-11-25 CN CN201410686888.9A patent/CN104455530A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050269542A1 (en) * | 2004-06-04 | 2005-12-08 | Scaramucci John P | Bearing retainer for trunnion mounted ball valve |
| CN203146892U (en) * | 2013-02-04 | 2013-08-21 | 精工阀门有限公司 | Fixing ball valve |
| CN103711929A (en) * | 2013-12-13 | 2014-04-09 | 苏州纽威阀门股份有限公司 | Ball valve |
| CN104084931A (en) * | 2014-07-07 | 2014-10-08 | 苏州纽威阀门股份有限公司 | Ball valve installing and dismantling tool and method |
| CN204312751U (en) * | 2014-11-25 | 2015-05-06 | 天津百利展发集团有限公司 | The valve seat combination structure of easy maintenance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003677A (en) * | 2015-04-16 | 2015-10-28 | 上海联科阀门成套设备有限公司 | Ball valve |
| CN105003677B (en) * | 2015-04-16 | 2018-10-26 | 上海联科阀门成套设备有限公司 | A kind of ball valve |
| CN104948763A (en) * | 2015-07-06 | 2015-09-30 | 昆山维萨阀门有限公司 | Top entry type high-temperature hard seal ball valve |
| CN110805715A (en) * | 2019-11-16 | 2020-02-18 | 永嘉企达知识产权咨询有限公司 | Change disk seat ball valve on line |
| CN112344051A (en) * | 2020-12-07 | 2021-02-09 | 江苏神通阀门股份有限公司 | Cryogenic upper-mounted ball valve and assembling method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |