CN203836241U - Full sealed butterfly-shaped isolation door with high temperature resistance - Google Patents
Full sealed butterfly-shaped isolation door with high temperature resistance Download PDFInfo
- Publication number
- CN203836241U CN203836241U CN201420212567.0U CN201420212567U CN203836241U CN 203836241 U CN203836241 U CN 203836241U CN 201420212567 U CN201420212567 U CN 201420212567U CN 203836241 U CN203836241 U CN 203836241U
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- China
- Prior art keywords
- housing
- ring
- valve gap
- high temperature
- circular valve
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- Expired - Fee Related
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Abstract
A full sealed butterfly-shaped isolation door with high temperature resistance comprises a cylindrical housing. Two ends of the housing are respectively provided with an inner end opening and an external end opening. In the housing, a place close to the inner end opening is provided with an annular seal seat fastened on the inner wall of the housing; the housing inner wall tightly abutted against the external end of the annular seal seat is fixedly connected with a protective ring; an annular expansion joint is disposed in the protective ring; the external side of the inner end of an annular seal sleeve in the housing is fixedly connected with the inner side of the annular seal seat; the external side of the external end of the annular seal sleeve is abutted against the annular expansion joint; a round valve cover is formed in the annular seal sleeve; the round valve cover and the annular seal sleeve are concentrically arranged; the external edge of the round valve cover is provided with a bead weld layer; and the bead weld layer is abutted against the inner side of the external end of the annular seal sleeve. The full sealed butterfly-shaped isolation door with high temperature resistance is rationally designed with strong high temperature resistance property; and deformation is unlikely to happen, so sealing effect is enhanced and heat leakage is prevented.
Description
Technical field:
The utility model relates to a kind of high temperature resistant hermetically sealed butterfly type isolation door.
Background technique:
At present, on some high-temperature pipes, all can use isolation door, high-temperature pipe is played to seal action.
Existing common isolation door, without thermal compensation function, although can be tight at normal state lower seal, in the time of the condition of high temperature, easily deform, cause poorly sealed, thereby there is the situation of heat leak.
Model utility content:
The utility model, in order to make up the deficiencies in the prior art, provides a kind of high temperature resistant hermetically sealed butterfly type isolation door, its reasonable in design, heat-resisting ability is strong, not yielding, has strengthened sealing effect, avoid the generation of heat leak situation, solved problems of the prior art.
The utility model for solving the problems of the technologies described above adopted technological scheme is:
A kind of high temperature resistant hermetically sealed butterfly type isolation door, comprise a columnar housing, be respectively equipped with an interior end opening and an outer end opening at the two ends of housing, in housing, be provided with a ring sealing base that is fixed on inner walls near inner opening, a retaining ring is connected in the inner walls near ring sealing base outer end, in retaining ring, be provided with an annular expansion joint, the one inner outside that is located at the ring-shaped sealing sleeve in housing fixedly connected to the inner side with ring sealing base, the outside, outer end of ring-shaped sealing sleeve connects with annular expansion joint, in ring-shaped sealing sleeve, be provided with a circular valve gap, circular valve gap arranges with ring-shaped sealing sleeve is concentric, be provided with a circle overlay cladding at the outer edge of circular valve gap, overlay cladding and inner side, ring-shaped sealing sleeve outer end connect, on the end face center line of the outer end of circular valve gap, be provided with a minor axis, the center of minor axis and the central alignment of circular valve gap, the two ends of minor axis are hinged and connected with two hangers that are fixed on the outer end end face of circular valve gap, the two ends of minor axis are movably connected with an one end of cranking arm respectively, one is located at the middle part that main shaft and two that minor axis one side and minor axis be arranged in parallel cranks arm is connected respectively, the two ends of main shaft are movably arranged on respectively in the sealing case on housing, two the other ends of cranking arm are connected by the outer end end face of a high temperature spring and circular valve gap respectively, one is located at one end that one end of execution bar of hull outside and main shaft extend hull outside is connected.
Described sealing case comprises that one is arranged on the box body that is set in outside, main shaft two ends on housing, is provided with a copper sheathing that is set in main shaft outside in box body middle inside, is respectively equipped with several and is set in the expansive graphite sealing circle in main shaft outside in the box body of copper sheathing both sides.
The utility model adopts such scheme, and reasonable in design adopts the thermal expansion of annular expansion joint, the overlay cladding of ring-shaped sealing sleeve and circular valve gap outer edge is closely pushed against, and heat-resisting ability is strong, not yielding, strengthen sealing effect, avoided the generation of heat leak situation.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A part cross-sectional schematic of Fig. 1.
In figure, 1, housing, 2, interior end opening, 3, outer end opening, 4, ring sealing base, 5, retaining ring, 6, annular expansion joint, 7, ring-shaped sealing sleeve, 8, circular valve gap, 9, overlay cladding, 10, minor axis, 11, hanger, 12, crank arm, 13, main shaft, 14, high temperature spring, 15, carry out bar, 16, box body, 17, copper sheathing, 18, expansive graphite sealing circle.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in Figure 1-2, a kind of high temperature resistant hermetically sealed butterfly type isolation door, comprise a columnar housing 1, be respectively equipped with an interior end opening 2 and an outer end opening 3 at the two ends of housing 1, be provided with a ring sealing base 4 that is fixed on housing 1 inwall near interior end opening 2 places housing 1 is interior, a retaining ring 5 is connected on housing 1 inwall near ring sealing base 4 outer ends, in retaining ring 5, be provided with an annular expansion joint 6, the one inner outside that is located at the ring-shaped sealing sleeve 7 in housing 1 fixedly connected to the inner side with ring sealing base 4, the outside, outer end of ring-shaped sealing sleeve 7 connects with annular expansion joint 6, in ring-shaped sealing sleeve 7, be provided with a circular valve gap 8, circular valve gap 8 and the concentric setting of ring-shaped sealing sleeve 7, be provided with a circle overlay cladding 9 at the outer edge of circular valve gap 8, the distortion of overlay cladding 9 under cold conditions is less than 5, distortion under hot is less than 8, thermal distortion is very little, overlay cladding 9 connects with ring-shaped sealing sleeve 7 inner sides, outer end, on the end face center line of the outer end of circular valve gap 8, be provided with a minor axis 10, the central alignment of minor axis 10 center and circular valve gap 8, the two ends of minor axis 10 are hinged and connected with two hangers 11 that are fixed on the outer end end face of circular valve gap 8, the two ends of minor axis 10 are movably connected with a crank arm one end of 12 respectively, one is located at crank arm 12 middle part of main shaft 13 and two that minor axis 10 1 sides and minor axis 10 be arranged in parallel is connected respectively, the two ends of main shaft 13 are movably arranged on respectively in the sealing case on housing 1, two crank arm 12 the other ends are connected by a high temperature spring 14 and the outer end end face of circular valve gap 8 respectively, one is located at one end that the one end of execution bar 15 in housing 1 outside and main shaft 13 extend housing 1 outside is connected.
Described sealing case comprises that one is arranged on the box body 16 that is set in main shaft 13 outsides, two ends on housing 1, be provided with a copper sheathing 17 that is set in main shaft 13 outsides in box body 16 middle inside, in the box body 16 of copper sheathing 17 both sides, be respectively equipped with several and be set in the expansive graphite sealing circle 18 in main shaft 13 outsides.The expansive graphite sealing circle 18 of copper sheathing 17 inner sides can prevent that flue dust from entering in copper sheathing 17, the expansive graphite sealing circle 18 in copper sheathing 17 outsides can prevent that atmospheric dust from entering in copper sheathing 17, simultaneously, expansive graphite sealing circle 18 has self-lubricating property, do not run off, can be lubricated stably in a long term, and high temperature resistant, long service life.
When normal sealing, whole isolation door is heated, while being heated, there is outside dilatancy in ring-shaped sealing sleeve 7, thereby can and the overlay cladding 9 of circular valve gap 8 outer edges between produce gap, still, while being heated due to annular expansion joint 6, can inwardly expand, ring-shaped sealing sleeve 7 is played to inside squeezing action, make to remain close contact between ring-shaped sealing sleeve 7 and overlay cladding 9, thereby reach good sealing effect, avoided the generation of heat leak situation.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (2)
1. a high temperature resistant hermetically sealed butterfly type isolation door, it is characterized in that: comprise a columnar housing, be respectively equipped with an interior end opening and an outer end opening at the two ends of housing, in housing, be provided with a ring sealing base that is fixed on inner walls near inner opening, a retaining ring is connected in the inner walls near ring sealing base outer end, in retaining ring, be provided with an annular expansion joint, the one inner outside that is located at the ring-shaped sealing sleeve in housing fixedly connected to the inner side with ring sealing base, the outside, outer end of ring-shaped sealing sleeve connects with annular expansion joint, in ring-shaped sealing sleeve, be provided with a circular valve gap, circular valve gap arranges with ring-shaped sealing sleeve is concentric, be provided with a circle overlay cladding at the outer edge of circular valve gap, overlay cladding and inner side, ring-shaped sealing sleeve outer end connect, on the end face center line of the outer end of circular valve gap, be provided with a minor axis, the center of minor axis and the central alignment of circular valve gap, the two ends of minor axis are hinged and connected with two hangers that are fixed on the outer end end face of circular valve gap, the two ends of minor axis are movably connected with an one end of cranking arm respectively, one is located at the middle part that main shaft and two that minor axis one side and minor axis be arranged in parallel cranks arm is connected respectively, the two ends of main shaft are movably arranged on respectively in the sealing case on housing, two the other ends of cranking arm are connected by the outer end end face of a high temperature spring and circular valve gap respectively, one is located at one end that one end of execution bar of hull outside and main shaft extend hull outside is connected.
2. the high temperature resistant hermetically sealed butterfly type isolation door of one according to claim 1, it is characterized in that: described sealing case comprises that one is arranged on the box body that is set in outside, main shaft two ends on housing, be provided with a copper sheathing that is set in main shaft outside in box body middle inside, in the box body of copper sheathing both sides, be respectively equipped with several and be set in the expansive graphite sealing circle in main shaft outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212567.0U CN203836241U (en) | 2014-04-28 | 2014-04-28 | Full sealed butterfly-shaped isolation door with high temperature resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212567.0U CN203836241U (en) | 2014-04-28 | 2014-04-28 | Full sealed butterfly-shaped isolation door with high temperature resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836241U true CN203836241U (en) | 2014-09-17 |
Family
ID=51514083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420212567.0U Expired - Fee Related CN203836241U (en) | 2014-04-28 | 2014-04-28 | Full sealed butterfly-shaped isolation door with high temperature resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716549A (en) * | 2018-02-01 | 2018-10-30 | 中国城市建设研究院有限公司 | A kind of pipe gallery airtight valve |
| CN109519551A (en) * | 2018-12-24 | 2019-03-26 | 大唐三门峡发电有限责任公司 | A kind of refractory seals butterfly isolation door gear |
-
2014
- 2014-04-28 CN CN201420212567.0U patent/CN203836241U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716549A (en) * | 2018-02-01 | 2018-10-30 | 中国城市建设研究院有限公司 | A kind of pipe gallery airtight valve |
| CN109519551A (en) * | 2018-12-24 | 2019-03-26 | 大唐三门峡发电有限责任公司 | A kind of refractory seals butterfly isolation door gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |