CN201779279U - Triple eccentric metal hard sealing butterfly valve with access hole - Google Patents
Triple eccentric metal hard sealing butterfly valve with access hole Download PDFInfo
- Publication number
- CN201779279U CN201779279U CN2010205353276U CN201020535327U CN201779279U CN 201779279 U CN201779279 U CN 201779279U CN 2010205353276 U CN2010205353276 U CN 2010205353276U CN 201020535327 U CN201020535327 U CN 201020535327U CN 201779279 U CN201779279 U CN 201779279U
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- Prior art keywords
- valve
- flap
- ring
- valve body
- sealing
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- Expired - Fee Related
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Abstract
The utility model relates to a triple eccentric metal hard sealing butterfly valve with an access hole, which comprises a valve body, a valve stem, a valve clack, a valve bonnet, a transmission mechanism, a sealing part and a mounting part. The triple eccentric metal hard sealing butterfly valve is mainly characterized in that the access hole is manufactured on an inlet pipeline of the valve body, a sealing cover is mounted on the access hole, a valve clack sealing ring is fixedly mounted on the valve clack by the aid of a pressing ring and mounting screws, a valve seat sealing ring is fixedly mounted on the valve body by the aid of a split ring and fixing screws, and the spilt ring is embedded into an annular groove manufactured in the valve body. The valve clack sealing ring and the valve seat sealing ring can be assembled and disassembled by the aid of the access hole so as to be replaced. The triple eccentric metal hard sealing metal butterfly valve is convenient for maintenance, and is particularly applicable to large-caliber butterfly valves in working conditions with high temperature and abrasive media.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly about a kind of three eccentric hard seal butterfly valves.
Background technique
Three eccentric hard seal butterfly valves are because of simple in structure, characteristics such as keying is convenient, serviceability temperature height, be widely used in the pipeline in high temperature field, under valve opening state, its valve seat insert and flap seal ring are among the fluid, long-play causes seal ring to be subjected to erosive wear, needs regular or irregular maintenance or changes seal ring.At present, the maintenance of butterfly valve there are two kinds of methods: the one, directly whole valve is unloaded from pipeline and change seal ring; The 2nd, at valve top part valve gap is set, transmission part is changed seal ring from the valve gap taking-up, three eccentric butterfly valve as publication number CN101725718A, upper-detachable breakdown structure, whole valve rod can be taken out in valve body together with flap during the maintain and replace seal ring, not needing valve body is unloaded from pipeline can the maintain and replace seal ring.But the valve rod of butterfly valve is heavier together with the weight of flap, large-diameter butterfly valve particularly, and its valve rod is difficult for taking out in valve body easily together with flap.So prior art is very inconvenient to the maintain and replace of butterfly valve seal circle.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, and a kind of online three eccentric metal hard sealed butterfly damper that is convenient for changing the band access opening of seal ring is provided.
The technical solution of the utility model comprises valve body, valve rod, flap, valve gap, driving mechanism, Sealing and assembling set.Mainly be on the valve body inlet pipeline, to be shaped on access opening, a sealing cover is installed on this access opening; Flap is provided with the flap seal ring, and this flap seal ring is fixedly mounted on the flap by pressure ring, mounting screw; Valve body is provided with valve seat insert, and this valve seat insert is fixedly mounted on the valve body by divided ring and set screw; Divided ring is flush-mounted in the circular groove made in the valve body.
The utility model has the advantages that on the valve body inlet pipeline to be shaped on access opening, can dismounting flap seal ring and valve seat insert by this access opening, flap seal ring and valve seat insert are changed, easy to maintenance.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the partial structurtes enlarged view of sealing pair among the utility model Fig. 1.
Embodiment
The three eccentric metal hard sealed butterfly damper of band access opening as shown in Figure 1 comprises valve body 1, valve rod 2, flap 3, valve gap 4, driving mechanism 5, Sealing and assembling set.Be shaped on access opening on valve body 1 inlet pipeline, a sealing cover 6 is installed on this access opening, sealing cover 6 is installed on valve body 1 inlet pipeline by hex screw, is provided with seal arrangement between the two, and the size of access opening is decided according to the bore of butterfly valve.Flap 3 is provided with flap seal ring 9, this flap seal ring 9 is fixedly mounted on the flap 3 by pressure ring 7, mounting screw 8, be provided with the radial location device between flap seal ring 9 and flap 3, this radial location device is cooperatively interacted by locating slot made on positioning ring 10 that is provided with on the flap seal ring 9 and the flap 3 and forms.Valve body 1 is provided with valve seat insert 11, this valve seat insert 11 is fixedly mounted on the valve body 1 by divided ring 13 and set screw 12, divided ring 13 is flush-mounted in the circular groove of valve body 1 vias inner walls, valve seat insert 11 is fixedly mounted on the table top of valve body 1 by the set screw 12 with divided ring 13 screw-thread fit, and and the table top of valve body 1 between be provided with sealing gasket 14.Divided ring 13 is flush-mounted in the circular groove made in the valve body 1.Have the sealing curved surface that cooperatively interacts between valve seat insert 11 and the flap seal ring 9, be provided with drive sleeve 15 between valve rod 2 and the valve body 1.
Claims (2)
1. the three eccentric metal hard sealed butterfly damper with access opening comprises valve body (1), valve rod (2), flap (3), valve gap (4), driving mechanism (5), Sealing and assembling set; It is characterized in that on valve body (1) inlet pipeline, being shaped on access opening, a sealing cover (6) is installed on this access opening; Flap (3) is provided with flap seal ring (9), and this flap seal ring (9) is fixedly mounted on the flap (3) by pressure ring (7), mounting screw (8); Valve body (1) is provided with valve seat insert (11), and this valve seat insert (11) is fixedly mounted on the valve body (1) by divided ring (13) and set screw (12); Divided ring (13) is flush-mounted in the circular groove made in the valve body (1).
2. the three eccentric metal hard sealed butterfly damper of band access opening according to claim 1, it is characterized in that being provided with the radial location device between flap seal ring (9) and flap (3), this radial location device is cooperatively interacted by the upward made locating slot of last positioning ring (10) that is provided with of flap seal ring (9) and flap (3) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205353276U CN201779279U (en) | 2010-09-20 | 2010-09-20 | Triple eccentric metal hard sealing butterfly valve with access hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205353276U CN201779279U (en) | 2010-09-20 | 2010-09-20 | Triple eccentric metal hard sealing butterfly valve with access hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779279U true CN201779279U (en) | 2011-03-30 |
Family
ID=43792490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205353276U Expired - Fee Related CN201779279U (en) | 2010-09-20 | 2010-09-20 | Triple eccentric metal hard sealing butterfly valve with access hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779279U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313059A (en) * | 2011-10-22 | 2012-01-11 | 无锡智能自控工程有限公司 | Butterfly valve capable of being maintained on line |
| CN102720875A (en) * | 2012-06-08 | 2012-10-10 | 圣博莱阀门有限公司 | Ultralow-temperature top entry hard-sealing butterfly valve |
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN110608290A (en) * | 2019-10-23 | 2019-12-24 | 江苏神通阀门股份有限公司 | Three-eccentric metal seal butterfly valve structure with online replaceable seal pair |
| CN110715061A (en) * | 2019-10-23 | 2020-01-21 | 江苏神通阀门股份有限公司 | Method for replacing sealing pair of three-eccentric metal sealing butterfly valve on line |
| CN112539285A (en) * | 2020-12-07 | 2021-03-23 | 河南泉舜流体控制科技有限公司 | Hemisphere valve that can maintain on line |
-
2010
- 2010-09-20 CN CN2010205353276U patent/CN201779279U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313059A (en) * | 2011-10-22 | 2012-01-11 | 无锡智能自控工程有限公司 | Butterfly valve capable of being maintained on line |
| CN102720875A (en) * | 2012-06-08 | 2012-10-10 | 圣博莱阀门有限公司 | Ultralow-temperature top entry hard-sealing butterfly valve |
| CN103470792A (en) * | 2013-09-23 | 2013-12-25 | 南通龙源电站阀门有限公司 | Triple-eccentric high-pressure butterfly valve capable of realizing online replacement of valve seat |
| CN110608290A (en) * | 2019-10-23 | 2019-12-24 | 江苏神通阀门股份有限公司 | Three-eccentric metal seal butterfly valve structure with online replaceable seal pair |
| CN110715061A (en) * | 2019-10-23 | 2020-01-21 | 江苏神通阀门股份有限公司 | Method for replacing sealing pair of three-eccentric metal sealing butterfly valve on line |
| CN112539285A (en) * | 2020-12-07 | 2021-03-23 | 河南泉舜流体控制科技有限公司 | Hemisphere valve that can maintain on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20130920 |