CN204755944U - High temperature triple offset butterfly valve structure - Google Patents
High temperature triple offset butterfly valve structure Download PDFInfo
- Publication number
- CN204755944U CN204755944U CN201520498689.5U CN201520498689U CN204755944U CN 204755944 U CN204755944 U CN 204755944U CN 201520498689 U CN201520498689 U CN 201520498689U CN 204755944 U CN204755944 U CN 204755944U
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- valve
- butterfly
- high temperature
- butterfly valve
- valve body
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Abstract
The utility model provides a high temperature triple offset butterfly valve structure, including valve body, valve gap, valve rod and butterfly plate, be equipped with metal seal ring on the butterfly plate, the valve body with be equipped with the build -up welding alloy -layer on the sealed face that the metal seal ring corresponds, the build -up welding alloy -layer of metal seal ring and the sealed cooperation of the build -up welding alloy -layer of valve body. This high temperature triple offset butterfly valve structure is the build -up welding temperature resistant on the sealed face that disk seat and metal seal ring correspond, anti -corrosion alloy material, set up simultaneously the metal seal ring on the butterfly plate, this butterfly valve just can use under high temperature and high pressure environment like this, this butterfly valve passes through direct metal and contacts equilibrium of forces face -to -face, do not rely on medium self pressure, can reach safe sealed position, need not mechanical location, this kind of butterfly valve compare with traditional butterfly valve have high temperature resistant, the operation is light, open and close and do not have the friction, moment increase along with drive mechanism when closing comes the compensation sealed, the service life of the sealing performance and the extension of butterfly valve is prolonged the advantage.
Description
Technical field
The utility model a kind of butterfly valve structure, particularly a kind of three eccentric butterfly valve structure adapting to hot environment.
Background technique
Valve is the controlling component in fluid delivery system, plays water conservancy diversion, dams, the function such as throttling and adjustment, has now been widely used in many departments of national economy, as the industry such as transport, metallurgy, building.Valve is classified according to their structural type, as stop valve, ball valve, butterfly valve etc., wherein again with the open and close of butterfly valve rapidly, the feature such as good seal and being widely used, in pipeline, be commonly used to make the flow direction cutting off, distribute and change medium.The most common structure of butterfly valve is by valve body, and butterfly plate, valve rod, valve seat, valve seat pressure ring, sealing configuration, the composition such as fastening piece, butterfly plate is placed in valve body, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.When butterfly plate is horizontally placed in pipeline, the sealing surface of the valve seat in butterfly plate edge surface and valve body is bonded to each other to be blocked the import and export of valve body.By rotating through the valve rod of butterfly plate, butterfly plate edge is separated with sealing surface of seat, and pipe path is opened, and angle of release is larger, and pipeline flow is also larger.
In known prior art, the dish version of butterfly valve and seal form many employings soft sealing structure of valve body, sealing material is rubber, teflon etc., and due to the restriction of structure characteristic, existing butterfly valve being not suitable with uses at high temperature resistant, high pressure and corrosion-resistant, the industry such as to resistance to wear.
Model utility content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide one can use under high temperature, hyperbaric environment, corrosion-resistant, wear-resistant a kind of three eccentric butterfly valve structure.
For achieving the above object and other relevant objects, the utility model provides a kind of high temperature three eccentric butterfly valve structure, it comprises valve body, valve gap, valve rod and butterfly plate, described butterfly plate is provided with a metallic packing ring, described valve body is connected with described valve gap, one end of described valve rod extend in described valve body, described butterfly plate is positioned at described valve body, described butterfly plate is connected with described valve rod, described valve rod can drive described butterfly plate to rotate, the sealing surface that described valve body is corresponding with described metallic packing ring is equipped with hardfacing alloy layer, the butt welding alloy-layer of described metallic packing ring and the hardfacing alloy layer of described valve body are sealed and matched.
Preferably, described metallic packing ring is fixed on described butterfly plate by valve seat pressure ring.
Preferably, the hardfacing alloy layer of described valve body is bell mouth shape.
Preferably, described valve gap is for lengthening valve gap, and the outer circumferential face of described valve gap is provided with radiating fin.
Preferably, gasket seal is provided with between described metallic packing ring and described butterfly plate.
As mentioned above, high temperature three eccentric butterfly valve structure of the present utility model has following beneficial effect: this high temperature three eccentric butterfly valve structure built-up welding heatproof on the sealing surface that valve body is corresponding with metallic packing ring, corrosion resistant alloy material, this butterfly valve just can use under high temperature and high pressure environment like this, this butterfly valve contacts equilibrium of forces face-to-face by direct metal, do not rely on medium pressure itself, safe sealing position can be reached, locate without the need to machinery, this butterfly valve has high temperature resistant compared with traditional butterfly valve, operate light, open and close without friction, compensation sealing is carried out along with the moment of driving mechanism increases during closedown, the sealability that improve butterfly valve and the advantage increased the service life.
Accompanying drawing explanation
Fig. 1 is the outline drawing of the utility model embodiment.
Fig. 2 is the sectional view of the utility model embodiment.
Fig. 3 is the structural representation that the utility model embodiment valve body and butterfly plate are sealed and matched.
Element numbers explanation.
1, valve body 2, valve gap 3, valve rod 4, butterfly plate 5, valve seat pressure ring 6, hardfacing alloy layer 7, metallic packing ring 8, radiating fin 9, filler 10, gasket seal.
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to 3.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
As shown in Figure 1, 2, the utility model provides a kind of high temperature three eccentric butterfly valve structure, and it comprises valve body 1, and valve body 1 is provided with valve gap 2, and valve body 1 and valve gap 2 are bolted.Butterfly plate 4 is positioned at valve body 1, and one end of valve rod 3 extend in valve body 1 and is connected with butterfly plate 4, and valve rod 3 can drive butterfly plate 4 to rotate.By rotating through the valve rod of butterfly plate, butterfly plate edge is separated with sealing surface of seat, and pipe path is opened, and angle of release is larger, and pipeline flow is also larger.Butterfly plate 4 is provided with a metallic packing ring 7, and the sealing surface that valve body 1 is corresponding with metallic packing ring 7 is equipped with hardfacing alloy layer, and the butt welding alloy-layer on metallic packing ring 7 and the hardfacing alloy layer of valve body 1 are sealed and matched.As a kind of optimal way, hardfacing alloy layer on valve body 16 is in bell mouth shape, and such metallic packing ring 7 can realize and naturally seal of hardfacing alloy layer 6, locates without the need to carrying out machinery again.
As a kind of embodiment of the present utility model, metallic packing ring 7 is fixed on butterfly plate 4 by valve seat pressure ring 5, and is provided with gasket seal 10 between metallic packing ring 7 and butterfly plate 4, can play better sealing effect like this.
As another kind of embodiment of the present utility model, valve gap 2 is king-size valve gap, is provided with radiating fin 8 on the outer circumferential face of valve gap 2 simultaneously, is provided with filler 9 between valve rod 3 and valve gap 2 simultaneously.The size of valve gap 2 lengthened, on valve gap 2, arrange radiating fin 8, such filler 9 can not be in the condition of high temperature always simultaneously, thus ensures the effective sealing performance of filler.
This high temperature three eccentric butterfly valve structure built-up welding heatproof on the sealing surface that valve seat is corresponding with metallic packing ring, corrosion resistant alloy material, metallic packing ring is set on butterfly plate simultaneously, this butterfly valve just can use under high temperature and high pressure environment like this, this butterfly valve contacts equilibrium of forces face-to-face by direct metal, do not rely on medium pressure itself, safe sealing position can be reached, locate without the need to machinery, this butterfly valve has high temperature resistant compared with traditional butterfly valve, operate light, open and close without friction, compensation sealing is carried out along with the moment of driving mechanism increases during closedown, the sealability that improve butterfly valve and the advantage increased the service life.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (5)
1. a high temperature three eccentric butterfly valve structure, it is characterized in that: it comprises valve body, valve gap, valve rod and butterfly plate, described butterfly plate is provided with a metallic packing ring, described valve body is connected with described valve gap, one end of described valve rod extend in described valve body, described butterfly plate is positioned at described valve body, described butterfly plate is connected with described valve rod, described valve rod can drive described butterfly plate to rotate, the sealing surface that described valve body is corresponding with described metallic packing ring is equipped with hardfacing alloy layer, and the butt welding alloy-layer of described metallic packing ring and the hardfacing alloy layer of described valve body are sealed and matched.
2. high temperature three eccentric butterfly valve structure according to claim 1, is characterized in that: described metallic packing ring is fixed on described butterfly plate by valve seat pressure ring.
3. high temperature three eccentric butterfly valve structure according to claim 1, is characterized in that: described valve body hardfacing alloy layer is bell mouth shape.
4. high temperature three eccentric butterfly valve structure according to claim 1, is characterized in that: described valve gap is for lengthening valve gap, and the outer circumferential face of described valve gap is provided with radiating fin.
5. high temperature three eccentric butterfly valve structure according to claim 1, is characterized in that: be provided with gasket seal between described metallic packing ring and described butterfly plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498689.5U CN204755944U (en) | 2015-07-10 | 2015-07-10 | High temperature triple offset butterfly valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498689.5U CN204755944U (en) | 2015-07-10 | 2015-07-10 | High temperature triple offset butterfly valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755944U true CN204755944U (en) | 2015-11-11 |
Family
ID=54470651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520498689.5U Expired - Fee Related CN204755944U (en) | 2015-07-10 | 2015-07-10 | High temperature triple offset butterfly valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822775A (en) * | 2016-05-24 | 2016-08-03 | 江苏兰格特自动化设备有限公司 | Two-position normally open type pilot valve capable of being controlled by mechanical ejector rod |
| CN106195388A (en) * | 2016-09-13 | 2016-12-07 | 航天长征化学工程股份有限公司 | Three-eccentric butterfly valve |
| CN107269859A (en) * | 2016-04-07 | 2017-10-20 | 上海累富阀门科技有限公司 | Hard alloy compound sealing structure and its preparation technology |
-
2015
- 2015-07-10 CN CN201520498689.5U patent/CN204755944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269859A (en) * | 2016-04-07 | 2017-10-20 | 上海累富阀门科技有限公司 | Hard alloy compound sealing structure and its preparation technology |
| CN105822775A (en) * | 2016-05-24 | 2016-08-03 | 江苏兰格特自动化设备有限公司 | Two-position normally open type pilot valve capable of being controlled by mechanical ejector rod |
| CN106195388A (en) * | 2016-09-13 | 2016-12-07 | 航天长征化学工程股份有限公司 | Three-eccentric butterfly valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170710 |