CN104896121A - Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve - Google Patents
Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve Download PDFInfo
- Publication number
- CN104896121A CN104896121A CN201510271738.6A CN201510271738A CN104896121A CN 104896121 A CN104896121 A CN 104896121A CN 201510271738 A CN201510271738 A CN 201510271738A CN 104896121 A CN104896121 A CN 104896121A
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- CN
- China
- Prior art keywords
- valve
- valve plate
- annular
- sealing
- valve body
- 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
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Abstract
The invention discloses a valve plate and valve body sealing cooperation structure of a three-eccentric hard sealing butterfly valve. The valve plate and valve body sealing cooperation structure of the three-eccentric hard sealing butterfly valve comprises a valve body, a valve plate is arranged in the inner cavity of the valve body, a valve rod installation hole is formed in the valve plate, the inner cavity of the valve body is provided with an annular protrusion matched with the valve plate, the large end side of the annular protrusion is provided with the valve plate, the front end face of the valve plate is provided with a two-step annular table, a first step face of the annular table is provided with an annular groove, an annular winding gasket is arranged in the annular groove, and a valve body sealing ring pressing the winding gasket is installed on the first step face; a second step face of the annular table is provided with an annular installation groove, a self expansion rubber sealing ring is arranged in the installation groove, a pressing ring is arranged on the second step face, the pressing ring is fixed onto the valve plate through a bolt, and the pressing ring presses the outer surfaces of the winding gasket and the self expansion rubber sealing ring. According to the valve plate and valve body sealing cooperation structure of the three-eccentric hard sealing butterfly valve, through the reasonable cooperation between the sealing structure and the self expansion rubber sealing ring, the installation firmness and the stability of the sealing face are guaranteed, and meanwhile the sealing performance is further improved.
Description
technical field:
The present invention relates to butterfly valve, particularly relate to a kind of valve plate and valve seal cooperating structure of three eccentricity hard seal butterfly valve.
background technique:
At present, butterfly valve is as a kind of parts being used for realizing pipe-line system break-make and flow control, and metal hard-sealing butterfly valve, valve body and valve seat are disjunctor component, valve seat sealing surface layer built-up welding heatproof, corrosion resistant alloy material.The soft stacked seal ring of multilayer is fixed on valve plate, this butterfly valve has high temperature resistant compared with traditional butterfly valve, operates light, opens and closes without friction, compensation sealing, the sealability that improve butterfly valve and the advantage increased the service life is come along with the moment of driving mechanism increases during closedown.
Certainly, for above-mentioned sealing configuration, sealability is the demand reaching working environment at short notice, but along with long work, loosening easily appears in sealing surface, thus causes be affected the working life of butterfly valve.
summary of the invention:
In order to make up prior art problem, the object of this invention is to provide a kind of valve plate and valve seal cooperating structure of three eccentricity hard seal butterfly valve, ensureing installation soundness and the stability of sealing surface, also improving sealability further simultaneously.
Technological scheme of the present invention is as follows:
The valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body, valve plate is provided with in body cavity, valve plate is provided with valve rod mounting hole, it is characterized in that: in the inner chamber of described valve body, be provided with the annular protrusion matched with valve plate, the large end side of annular protrusion is provided with valve plate, the front-end face of valve plate has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket of annular in circular groove, First terrace be provided with the valve seals pushing down described wound gasket; Described annular table second step face is provided with the mounting groove of annular, and be provided with self-expanding rubber seal in mounting groove, second step face is provided with trim ring, and trim ring is secured by bolts on valve plate, and the outer surface of wound gasket, self-expanding rubber seal pushed down by trim ring; The conical surface that described trim ring and the outer peripheral surface of wound gasket match with described annular protrusion inwall.
The valve plate of described three eccentricity hard seal butterfly valve and valve seal cooperating structure, described expanded rubber seal ring and trim ring phase-contact surface are provided with the lip limit of some roads annular, trim ring are also provided with the groove matched with lip limit.
Advantage of the present invention is:
The present invention coordinates self-expanding rubber seal by rational sealing configuration, when bolt tightening fixes whole sealing surface, can play the anti-loosening effect of elasticity, ensures installation soundness and the stability of sealing surface, also improves sealability further simultaneously.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of self-expanding rubber seal of the present invention.
embodiment:
See accompanying drawing:
The valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body 1, valve plate 2 is provided with in valve body 1 inner chamber, valve plate 2 is provided with valve rod mounting hole 3, the annular protrusion 3 matched with valve plate is provided with in the inner chamber of valve body 1, annular protrusion 3 is provided with valve plate 2 in end side greatly, the front-end face of valve plate 2 has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket 4 of annular in circular groove, First terrace be provided with the valve seals 5 pushing down wound gasket 4; Annular table second step face is provided with the mounting groove of annular, self-expanding rubber seal 6 is provided with in mounting groove, second step face is provided with trim ring 7, and trim ring 7 is fixed on valve plate 2 by bolt 8, and the outer surface of wound gasket 4, self-expanding rubber seal 6 pushed down by trim ring 7; The conical surface that the outer peripheral surface of trim ring 7 and wound gasket 4 matches with annular protrusion 3 inwall, is used for the inflow of control flow check body medium and outflow.
Expanded rubber seal ring 6 and trim ring 7 phase-contact surface are provided with the lip limit 9 of some roads annular, trim ring 7 are also provided with the groove 10 matched with lip limit 9.
Claims (2)
1. the valve plate of a three eccentricity hard seal butterfly valve and valve seal cooperating structure, comprise valve body, valve plate is provided with in body cavity, valve plate is provided with valve rod mounting hole, it is characterized in that: in the inner chamber of described valve body, be provided with the annular protrusion matched with valve plate, the large end side of annular protrusion is provided with valve plate, the front-end face of valve plate has the diminishing step-like annular table of external diameter, first ladder surface of annular table is provided with circular groove, be provided with the wound gasket of annular in circular groove, First terrace be provided with the valve seals pushing down described wound gasket; Described annular table second step face is provided with the mounting groove of annular, and be provided with self-expanding rubber seal in mounting groove, second step face is provided with trim ring, and trim ring is secured by bolts on valve plate, and the outer surface of wound gasket, self-expanding rubber seal pushed down by trim ring; The conical surface that described trim ring and the outer peripheral surface of wound gasket match with described annular protrusion inwall.
2. the valve plate of three eccentricity hard seal butterfly valve according to claim 1 and valve seal cooperating structure, it is characterized in that: described self-expanding rubber seal and trim ring phase-contact surface are provided with the lip limit of some roads annular, trim ring is also provided with the groove matched with lip limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271738.6A CN104896121A (en) | 2015-05-25 | 2015-05-25 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271738.6A CN104896121A (en) | 2015-05-25 | 2015-05-25 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104896121A true CN104896121A (en) | 2015-09-09 |
Family
ID=54028974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510271738.6A Pending CN104896121A (en) | 2015-05-25 | 2015-05-25 | Valve plate and valve body sealing cooperation structure of three-eccentric hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156702A (en) * | 2015-09-30 | 2015-12-16 | 中国船舶重工集团公司第七一九研究所 | Electric air-tight air volume adjusting valve |
| CN107387781A (en) * | 2017-08-15 | 2017-11-24 | 洛阳沃达节能科技有限公司 | Alloy heating furnace turnover panel valve seal mechanism |
| CN109210228A (en) * | 2018-11-07 | 2019-01-15 | 成都乘风阀门有限责任公司 | By warlord |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2034442A (en) * | 1978-10-26 | 1980-06-04 | Klein Schanzlin & Becker Ag | Butterfly valve |
| WO1995032377A1 (en) * | 1994-05-23 | 1995-11-30 | Keystone Vanessa S.R.L. | A lateral seal system for valves |
| CN101956831A (en) * | 2010-10-11 | 2011-01-26 | 无锡智能自控工程有限公司 | Solid metal three-eccentric butterfly valve |
| CN202100732U (en) * | 2011-06-07 | 2012-01-04 | 浙江高特阀门有限公司 | Double-eccentric dual-sealing butterfly valve |
| CN203532801U (en) * | 2013-10-11 | 2014-04-09 | 重庆川仪调节阀有限公司 | Triple-eccentric hard-seal butterfly valve |
| CN204677785U (en) * | 2015-05-25 | 2015-09-30 | 蚌埠南自仪表有限公司 | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure |
-
2015
- 2015-05-25 CN CN201510271738.6A patent/CN104896121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2034442A (en) * | 1978-10-26 | 1980-06-04 | Klein Schanzlin & Becker Ag | Butterfly valve |
| WO1995032377A1 (en) * | 1994-05-23 | 1995-11-30 | Keystone Vanessa S.R.L. | A lateral seal system for valves |
| CN101956831A (en) * | 2010-10-11 | 2011-01-26 | 无锡智能自控工程有限公司 | Solid metal three-eccentric butterfly valve |
| CN202100732U (en) * | 2011-06-07 | 2012-01-04 | 浙江高特阀门有限公司 | Double-eccentric dual-sealing butterfly valve |
| CN203532801U (en) * | 2013-10-11 | 2014-04-09 | 重庆川仪调节阀有限公司 | Triple-eccentric hard-seal butterfly valve |
| CN204677785U (en) * | 2015-05-25 | 2015-09-30 | 蚌埠南自仪表有限公司 | A kind of valve plate of three eccentricity hard seal butterfly valve and valve seal cooperating structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156702A (en) * | 2015-09-30 | 2015-12-16 | 中国船舶重工集团公司第七一九研究所 | Electric air-tight air volume adjusting valve |
| CN107387781A (en) * | 2017-08-15 | 2017-11-24 | 洛阳沃达节能科技有限公司 | Alloy heating furnace turnover panel valve seal mechanism |
| CN107387781B (en) * | 2017-08-15 | 2023-05-09 | 洛阳沃达节能科技有限公司 | Alloy heating furnace flap valve sealing mechanism |
| CN109210228A (en) * | 2018-11-07 | 2019-01-15 | 成都乘风阀门有限责任公司 | By warlord |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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: 20150909 |