CN102748485B - Removable ring sealed butterfly valve - Google Patents
Removable ring sealed butterfly valve Download PDFInfo
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- CN102748485B CN102748485B CN201210227538.7A CN201210227538A CN102748485B CN 102748485 B CN102748485 B CN 102748485B CN 201210227538 A CN201210227538 A CN 201210227538A CN 102748485 B CN102748485 B CN 102748485B
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Abstract
The present invention relates to a kind of removable ring sealed butterfly valve, valve rod is by upper set and traps and is sealingly mounted at respectively on valve body, valve rod and the output shaft of drive mechanism are connected, the connecting seat of valve disc side is connected with valve rod, and valve disc center seal line has eccentric throw with valve rod rotary centerline, it is provided with valve body for carrying out sealed seal assembly to valve disc, seal assembly includes sealing valve port circle, compacting ring and locating ring, valve body is provided with baffle ring and positioned at the anterior positioning scrobicular ring of baffle ring, described locating ring is put together by the arc block of two or more independence, the shaft shoulder on each arc block is arranged in the positioning scrobicular ring of valve body, connector on each arc block is connected with compacting ring, sealing valve port circle is crimped on the baffle ring of valve body by compacting ring.The present invention is simple in construction, and replacing sealing valve port ring manipulation is efficient and convenient, can improve sealing property and service life.
Description
Technical field
The present invention relates to a kind of removable ring sealed butterfly valve, belong to sealed butterfly valve technical field.
Background technology
Butterfly valve is mainly made up of drive mechanism and main valve mechanism, rotates by drive mechanism the valve rod being connected with valve disc
The keying of valve disc and valve seat is acted and driven, the function of separating is risen to circulation medium.Due to the sealing of valve disc and valve seat it is main according to
Realize and seal by the sealing ring on valve disc and valve seat, and valve disc needs frequent switching motion, it is easy to cause sealing
The damage of circle, and the service behaviour of butterfly valve is reduced, need often to change sealing ring for this.And current sealing ring one kind is to install
In the groove of valve disc, sealing ring inconvenience is not only installed, frictional resistance during work is big, easily causes the abrasion of sealing ring.And it is another
Kind is the annular step surface that sealing ring is directly placed at valve disc, is fixed sealing ring by the pressure ring on valve disc, to carry
High butterfly valve maintainability, but above two structure needs to change sealing ring after valve disc is pulled down out of valve body, when adding maintenance
Between.Secondly, to make the sealing of valve disc and valve seat reach a good sealing effectiveness, it usually needs valve disc is to valve base sealing
The seal pressure in face, and sealing ring is arranged on rotary valve disc, due to being difficult to adjust seal pressure, its sealing property without
Method is further improved.
The content of the invention
It is easy for installation it is an object of the invention to provide one kind is simple in construction, the removable of sealing property and service life can be improved
Ring sealed butterfly valve.
The present invention is that the technical scheme for reaching above-mentioned purpose is：A kind of removable ring sealed butterfly valve, including drive mechanism and master
Valve system, described main valve mechanism includes valve body, valve disc and valve rod, and upper set and trapping is sealingly mounted on valve body respectively, valve rod
Both sides be supported on set respectively and in trapping, the output shaft connection of valve rod and drive mechanism, the connecting seat and valve of valve disc side
Bar is connected, and valve disc center seal line has eccentric throw with valve rod rotary centerline, it is characterised in that：It is provided with the valve body
For carrying out sealed seal assembly to valve disc, described seal assembly includes sealing valve port circle, compacting ring and locating ring, valve body
Provided with baffle ring and positioned at the anterior positioning scrobicular ring of baffle ring, described locating ring is by the arc block split of two or more independence
Into the shaft shoulder on each arc block is arranged in the positioning scrobicular ring of valve body, and the connector on each arc block connects with compacting ring
Connect, sealing valve port circle is crimped on the baffle ring of valve body and sealed for face by compacting ring, and the sealing surface of sealing valve port circle exceeds compression
The endoporus of circle and the endoporus of baffle ring, and sealing when the sealing surface of sealing valve port circle contacted with the sealing surface of valve disc for face.
The present invention uses seal assembly, and the locating ring on seal assembly is the arc block of two or more independence, therefore energy
Easily each arc block is arranged on valve body, the shaft shoulder of each arc block is positioned by the positioning scrobicular ring on valve body, made
Locating ring is arranged on valve body, and its of the invention compacting ring is connected by connector with locating ring, therefore can be by locating ring by valve
Mouth sealing ring is pressed on the baffle ring of valve body, and sealing valve port circle is arranged on valve body, and attachment structure is simple, changes sealing valve port circle
Shi Wuxu removes valve disc, only need to load and unload each arc block and connected compacting ring, you can realize the replacing of sealing valve port circle, grasps
Make convenient and swift, maintenance efficiency can be increased substantially.Butterfly valve of the present invention is using double eccentric structures, and sealing valve port circle is compressed
Circle, locating ring are fixed on valve body, valve disc sealing surface is gradually gone out with respect to sealing valve port face and are departed from and be fade-in compression, so as to eliminate
The mechanical wear between two valve disc sealing surfaces and sealing valve port face and scratch, improve the service life of butterfly valve when butterfly valve is opened and closed.
The present invention is that compacting ring is crimped on sealing valve port circle by the connector on arc block, because arc block installs valve
On body, sealing valve port circle is difficult loose or dislocation, and conveniently increase and decrease valve disc by connector reaches to the seal pressure of sealing valve port face
To the purpose of regulation, the adjustment to its seal pressure is realized, so as to improve butterfly valve seal performance.
Brief description of the drawings
Embodiments of the invention are described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of removable ring sealed butterfly valve of the invention.
Fig. 2 is mplifying structure schematic diagram at Fig. 1 I.
Wherein：1-drive mechanism, 2-above cover, 3-valve body, 3-1-positioning scrobicular ring, 3-2-baffle ring, 4-valve rod, 5-
Valve disc, 5-1-connecting seat, 6-sealing valve port circle, 7-compacting ring, 8-connector, 9-locating ring, the 9-1-shaft shoulder, 10-under
Set, 11-sealing ring, 12-lower cover, 13-lock-screw.
Embodiment
As shown in Figure 1, removable ring sealed butterfly valve of the invention, including drive mechanism 1 and main valve mechanism.The driving machine of the present invention
Structure 1 can use worm and gear drive mechanism or oscillating cylinder drive mechanism, and the output worm gear of worm and gear drive mechanism passes through key
It is connected with valve rod 4, can acts and rotate and control with ovable valve stem 4 unlatching of valve disc 5, worm gear snail by hand wheel rotating worm and gear
Bar is driven using two-stage, and butterfly valve is opened and closed realizes effective self-locking by worm and gear afterwards in place.And in oscillating cylinder drive mechanism
Output shaft be connected with valve rod 4, rotated by rack-and-pinion and output shaft band ovable valve stem 4, and control the unlatching of valve disc 5.
As shown in Fig. 1,2, main valve mechanism of the invention includes valve body 3, valve disc 5 and valve rod 4, upper set 2 and 10 difference of trapping
It is sealingly mounted on valve body 3, upper set 2 and traps and be separately installed with sealing ring 11 on 10 and sealed with valve body 3, the bottom of valve body 3 is pacified
Equipped with lower cover 12, upper set 2 and trapping 10 is made of antifriction metal (AFM), and the both sides of valve rod 4 are supported on set 2 and trap 10 respectively
Interior, the same both sides of valve rod 4 are separately installed with sealing ring 11 and cover 2 and the sealing of 10 formation well of trapping, valve rod 4 and driving with upper
The output gear axle connection of mechanism 1, the connecting seat 5-1 of the side of valve disc 5 is connected with valve rod 4, and the center seal line of valve disc 5 and valve rod 4
Rotary centerline has eccentric throw, and the eccentric throw can reduce sealing pair friction resistance between 25-50mm by the eccentric throw
Power, therefore in the opening-closing process of valve disc 5, the resistance of motion of valve disc 5 can be effectively reduced.
As shown in Fig. 1,2, it is provided with valve body 3 of the present invention for carrying out sealed seal assembly to the sealing surface of valve disc 5, should
Seal assembly includes sealing valve port circle 6, compacting ring 7 and locating ring 9, and valve body 3 is anterior provided with baffle ring 3-2 and positioned at baffle ring 3-2
Positioning scrobicular ring 3-1, by position scrobicular ring 3-1 to locating ring 9 carry out axially position, locating ring 9 by two or more independence arc
Shape block is put together, and the shaft shoulder 9-1 on each arc block is arranged in the positioning scrobicular ring 3-1 of valve body 3, facilitate arc block installation and
Dismounting, is convenient for changing sealing valve port circle 6, and the connector 8 on each arc block is connected with compacting ring 7, and compacting ring 7 is by valve
Mouth sealing ring 6 is crimped on the baffle ring 3-2 of valve body 3, and sealing valve port circle 6 is arranged on valve body 3, and the sealing surface of valve disc 5 is carried out
Sealing, the sealing surface of sealing valve port circle 6 of the present invention is opposite for the conical surface of the conical surface on the conical surface, and valve disc 5 and sealing valve port circle 6,
And the internal diameter of compacting ring 7 is less than baffle ring 3-2 internal diameter, and sealing valve port circle 6 is reliably withstood on the baffle ring 3-2 of valve body 3.
As shown in Fig. 1,2, arc block of the invention is provided with 2~8, such as uses 3 pieces, 4 pieces or 6 pieces, each arc is block-shaped
Can have the spiral shell that threaded connector 8 is screwed in arc axle sleeve with identical, at least provided with a screwed hole on each arc block
In pit, and the anterior fore-set of connector 8 is arranged in the blind hole of compacting ring 7, by connector 8 by locating ring 9 and compacting ring 7
Connection, and can be with seal pressure of the valve disc 5 to sealing valve port face, in order to limit connector 8 by adjusting connector 8
Position, lock-screw 13 is screwed in the screwed hole of arc block and connected with connector 8, prevents the axial movement of compacting ring 7.
Claims (4)
1. a kind of removable ring sealed butterfly valve, including drive mechanism (1) and main valve mechanism, described main valve mechanism include valve body (3),
Valve disc (5) and valve rod (4), it is upper set (2) and trap (10) be sealingly mounted at respectively on valve body (3), the both sides of valve rod (4) are propped up respectively
Hold in upper set (2) and trap in (10), valve rod (4) is connected with the output shaft of drive mechanism (1), the connecting seat of valve disc (5) side
(5-1) is connected with valve rod (4), and valve disc (5) center seal line has eccentric throw with valve rod (4) rotary centerline, and its feature exists
In：It is provided with the valve body (3) for carrying out sealed seal assembly, described seal assembly bag to valve disc (5) sealing surface
Sealing valve port circle (6), compacting ring (7) and locating ring (9) are included, valve body (3) is provided with baffle ring (3-2) and before baffle ring (3-2)
The positioning scrobicular ring (3-1) in portion, described locating ring (9) is put together by the arc block of two or more independence, on each arc block
The shaft shoulder (9-1) is arranged in the positioning scrobicular ring (3-1) of valve body (3), connector (8) and compacting ring on each arc block
(7) connect, sealing valve port circle (6) is crimped on the baffle ring of valve body (3) (3-2) and sealed for face by compacting ring (7), sealing valve port circle
(6) sealing surface relative to valve disc (5) exceeds the endoporus of compacting ring (7) and the endoporus of baffle ring (3-2), and valve port during sealing is close
The sealing surface of seal (6) is contacted with the sealing surface of valve disc (5) for face.
2. removable ring sealed butterfly valve according to claim 1, it is characterised in that：The sealing surface of the sealing valve port circle (6)
It is same for the conical surface of the conical seal (contact) face on the conical surface, and valve disc (5), and valve disc (5) conical seal (contact) face and sealing valve port circle (6)
Direction.
3. removable ring sealed butterfly valve according to claim 1, it is characterised in that：The internal diameter of the compacting ring (7) is less than gear
The internal diameter of ring (3-2).
4. removable ring sealed butterfly valve according to claim 1, it is characterised in that：The arc block is provided with 2~8, each arc
At least provided with a screwed hole on shape block, have threaded connector (8) and be screwed in the screwed hole of arc axle sleeve, and connector
(8) anterior fore-set is arranged in the blind hole of compacting ring (7), and lock-screw is screwed in the screwed hole of arc block and and connector
(8) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210227538.7A CN102748485B (en) | 2012-06-30 | 2012-06-30 | Removable ring sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210227538.7A CN102748485B (en) | 2012-06-30 | 2012-06-30 | Removable ring sealed butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102748485A CN102748485A (en) | 2012-10-24 |
| CN102748485B true CN102748485B (en) | 2017-08-25 |
Family
ID=47028891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210227538.7A Active CN102748485B (en) | 2012-06-30 | 2012-06-30 | Removable ring sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748485B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946839B (en) * | 2020-08-13 | 2023-03-10 | 浙江力诺流体控制科技股份有限公司 | Double-linkage butterfly valve for isolating high-temperature flue |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530224A1 (en) * | 1995-08-17 | 1997-02-20 | Friatec Keramik Kunststoff | Sealing arrangement for butterfly valves |
| CN2361915Y (en) * | 1999-03-30 | 2000-02-02 | 天津塘沽瓦特斯阀门有限公司 | Conical miter cutting metal hard sealing butterfly valve |
| CN101101067A (en) * | 2007-07-19 | 2008-01-09 | 吴金龙 | Middle and high pressure bidirectional pressure seal butterfly valve |
| KR20100094171A (en) * | 2009-02-18 | 2010-08-26 | 주식회사 에스앤드더블유아이엔디 | A metal seat butterfly valve for high pressure and high temperature |
| CN202023937U (en) * | 2011-04-21 | 2011-11-02 | 天津凯发阀门有限公司 | Hard sealing butterfly valve |
| CN202140583U (en) * | 2011-07-26 | 2012-02-08 | 双达阀门股份有限公司 | Butterfly valve |
| CN102359608A (en) * | 2011-09-07 | 2012-02-22 | 中国船舶重工集团公司第七○四研究所 | Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring |
| CN202719154U (en) * | 2012-06-30 | 2013-02-06 | 常州市汇丰船舶附件制造有限公司 | Detachable sealing butterfly valve |
-
2012
- 2012-06-30 CN CN201210227538.7A patent/CN102748485B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19530224A1 (en) * | 1995-08-17 | 1997-02-20 | Friatec Keramik Kunststoff | Sealing arrangement for butterfly valves |
| CN2361915Y (en) * | 1999-03-30 | 2000-02-02 | 天津塘沽瓦特斯阀门有限公司 | Conical miter cutting metal hard sealing butterfly valve |
| CN101101067A (en) * | 2007-07-19 | 2008-01-09 | 吴金龙 | Middle and high pressure bidirectional pressure seal butterfly valve |
| KR20100094171A (en) * | 2009-02-18 | 2010-08-26 | 주식회사 에스앤드더블유아이엔디 | A metal seat butterfly valve for high pressure and high temperature |
| CN202023937U (en) * | 2011-04-21 | 2011-11-02 | 天津凯发阀门有限公司 | Hard sealing butterfly valve |
| CN202140583U (en) * | 2011-07-26 | 2012-02-08 | 双达阀门股份有限公司 | Butterfly valve |
| CN102359608A (en) * | 2011-09-07 | 2012-02-22 | 中国船舶重工集团公司第七○四研究所 | Hard sealing double eccentric butterfly valve for S-shaped elastic double O-shaped metal sealing ring |
| CN202719154U (en) * | 2012-06-30 | 2013-02-06 | 常州市汇丰船舶附件制造有限公司 | Detachable sealing butterfly valve |
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| Publication number | Publication date |
|---|---|
| CN102748485A (en) | 2012-10-24 |
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