CN203560467U - Triple-eccentric metal hard-sealing butterfly valve - Google Patents
Triple-eccentric metal hard-sealing butterfly valve Download PDFInfo
- Publication number
- CN203560467U CN203560467U CN201320727185.7U CN201320727185U CN203560467U CN 203560467 U CN203560467 U CN 203560467U CN 201320727185 U CN201320727185 U CN 201320727185U CN 203560467 U CN203560467 U CN 203560467U
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- Prior art keywords
- valve
- valve body
- butterfly
- seal ring
- metal hard
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 title abstract description 21
- 239000000956 alloy Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a triple-eccentric metal hard-sealing butterfly valve, and belongs to the technical field of butterfly valves. The triple-eccentric metal hard-sealing butterfly valve resists the high temperature and is good in sealing performance. According to the technical scheme, the triple-eccentric metal hard-sealing butterfly valve comprises a power assembly, a valve rod, a valve body and a valve seat, wherein the valve body is of a cavity structure, the valve rod is installed on the upper portion of the valve body, the valve rod is composed of a built-in portion and an externally-arranged portion, the built-in portion extends into the cavity of the valve body, and is movably connected with a butterfly plate through a key, the butterfly plate is driven by the valve rod to accomplish opening and closing between the butterfly plate and the valve seat, the annular valve seat is arranged inside the cavity of the valve body, a clamping groove is formed between the valve body and the valve seat, a metal sealing ring is installed in the clamping groove in a clamping mode, the section of the sealing ring is of a U shape, the open end of the sealing ring is installed in the clamping groove in a pressing mode, and the circular-arc end of the sealing ring abuts against the butterfly plate. The triple-eccentric metal hard-sealing butterfly valve can be applied to the environment with the high temperature and the high pressure.
Description
Technical field
A kind of three eccentric metal hard sealed butterfly damper of the utility model, belongs to butterfly valve technical field.
Background technique
Three eccentric butterfly valve is a kind of butterfly valve newly developed on the basis of double eccentric butterfly valve, in the inside of butterfly valve, there are three kinds of eccentric structures, be that butterfly plate rotatingshaft is relative with valve body center line eccentric, butterfly plate rotatingshaft is relative with butterfly plate plane eccentric, conical sealing surface center line is relative with valve center line eccentric, this structure of three eccentric butterfly valve, make its adjusting function and sealability all fine, but, current three eccentric butterfly valve mainly contains two kinds of sealing configurations, one is soft seal, adopt rubber seal to seal, the good seal performance of this structure, but non-refractory, easily damaged and aging, durability is poor, another kind is hard sealing, adopt metal sealing, current sealing configuration is fixed on butterfly plate by the folded formula seal ring of multilayer soft or hard, when butterfly plate is during in normally open, medium forms front to its sealing surface and washes away, after being washed away, butterfly plate can deform, directly affect sealability, therefore, aspect high temperature resistant and sealability, still there is a lot of deficiencies in the sealing configuration of existing three eccentric butterfly valve.
Model utility content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved is for providing a kind of three eccentric butterfly valve of high temperature resistant, good seal performance.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of three eccentric metal hard sealed butterfly damper, comprise Power Component, valve rod, valve body and valve seat, described valve body is a cavity body structure, the top of valve body is provided with valve rod, valve rod is comprised of built-in portion and external portion, described built-in portion stretches into the inside cavity of valve body, and be flexibly connected with butterfly plate by key, butterfly plate completes the opening and closing with valve seat under the drive of valve rod, the external portion of valve rod extends to the outside of valve body, and be connected with Power Component, the inside cavity of valve body is provided with annular valve seat, between described valve body and valve seat, form a draw-in groove, in described draw-in groove, be installed with the seal ring of metal, the sectional shape of described seal ring is " U " type, the opening end of seal ring is fitted in draw-in groove, the arc end of seal ring is connected on butterfly plate.
The material of described seal ring is nickel-bass alloy material.
Described valve body is the cast structure of cast steel, or is stainless cast structure.
Between described valve rod and valve body, be provided with graphite-seal ring.
The upper and lower of described graphite-seal ring is all filled with graphite braided packing.
The utility model compared with prior art has following beneficial effect.
One, the utility model adopts the metal o-ring of " U " type, when butterfly plate is after closed condition, the arc end of butterfly plate extruding " U " type structure, the favorable elasticity of " U " type of utilization structure and the high sealing performance of metal sealing, make when closing butterfly plate, produce zero leakage, and, the non-deformability of " U " type structure is good, be out of shape residual little, can use for a long time, in addition, seal ring is nickel-base alloy, the wear-resisting property of nickel-base alloy and corrosion resistance are all fine, can allow to be with mordant MEDIA FLOW mistake, the resistance to heat of nickel-base alloy is also fine, the utility model can be applied under hot environment.
Two, valve body of the present utility model is cast structure, and the sealability of this structure and stability are all fine, can in the gas pipeline of mesohigh, use for a long time.
Three, between valve rod of the present utility model and valve body, be provided with graphite-seal ring, utilize high temperature resistant, the corrosion-resistant and anti abrasive performance of graphite-seal ring, serviceability of the present utility model can be increased greatly.
Four, the upper and lower of graphite-seal ring of the present utility model is all filled with graphite braided packing, the utility model can be used to the pipeline at high temperature, high pressure, Korrosionsmedium.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of A position in Fig. 1.
In figure: 1 is Power Component, 2 is valve rod, and 3 is key, and 4 is butterfly plate, and 5 is valve body, and 6 is valve seat, and 7 is seal ring, and 8 is graphite-seal ring.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now, accompanying drawing is the schematic diagram of simplifying, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of three eccentric metal hard sealed butterfly damper, comprise Power Component 1, valve rod 2, valve body 5 and valve seat 6, described valve body 5 is a cavity body structure, the top of valve body 5 is provided with valve rod 2, valve rod 2 is comprised of built-in portion and external portion, described built-in portion stretches into the inside cavity of valve body 5, and be flexibly connected with butterfly plate 4 by key 3, butterfly plate 4 completes the opening and closing with valve seat 6 under the drive of valve rod 2, the external portion of valve rod 2 extends to the outside of valve body 5, and be connected with Power Component 1, the inside cavity of valve body 5 is provided with annular valve seat 6, between described valve body 5 and valve seat 6, form a draw-in groove, in described draw-in groove, be installed with the seal ring 7 of metal, the sectional shape of described seal ring 7 is " U " type, the opening end of seal ring 7 is fitted in draw-in groove, the arc end of seal ring 7 is connected on butterfly plate 4.
The material of described seal ring 7 is nickel-bass alloy material.
The cast structure that described valve body 5 is cast steel, or be stainless cast structure.
Between described valve rod 2 and valve body 5, be provided with graphite-seal ring 8.
The upper and lower of described graphite-seal ring 8 is all filled with graphite braided packing.
The utility model adopts the metal o-ring 7 of " U " type, when butterfly plate 4 is after closed condition, butterfly plate 4 pushes the arc end of " U " type structure, the favorable elasticity of " U " type of utilization structure and the high sealing performance of metal sealing, make when closing butterfly plate 4, produce zero leakage, and, the non-deformability of " U " type structure is good, be out of shape residual little, can use for a long time, in addition, seal ring 7 is nickel-base alloy, the wear-resisting property of nickel-base alloy and corrosion resistance are all fine, can allow to be with mordant MEDIA FLOW mistake, the resistance to heat of nickel-base alloy is also fine, the utility model can be applied on high-temperature pipe.
Claims (5)
1. a three eccentric metal hard sealed butterfly damper, comprise Power Component (1), valve rod (2), valve body (5) and valve seat (6), it is characterized in that, described valve body (5) is a cavity body structure, the top of valve body (5) is provided with valve rod (2), valve rod (2) is comprised of built-in portion and external portion, described built-in portion stretches into the inside cavity of valve body (5), and be flexibly connected with butterfly plate (4) by key (3), butterfly plate (4) completes the opening and closing with valve seat (6) under the drive of valve rod (2), the external portion of valve rod (2) extends to the outside of valve body (5), and be connected with Power Component (1), the inside cavity of valve body (5) is provided with annular valve seat (6), between described valve body (5) and valve seat (6), form a draw-in groove, in described draw-in groove, be installed with the seal ring (7) of metal, the sectional shape of described seal ring (7) is " U " type, the opening end of seal ring (7) is fitted in draw-in groove, the arc end of seal ring (7) is connected on butterfly plate (4).
2. a kind of three eccentric metal hard sealed butterfly damper according to claim 1, is characterized in that, the material of described seal ring (7) is nickel-bass alloy material.
3. a kind of three eccentric metal hard sealed butterfly damper according to claim 1 and 2, is characterized in that, the cast structure that described valve body (5) is cast steel, or be stainless cast structure.
4. a kind of three eccentric metal hard sealed butterfly damper according to claim 1 and 2, is characterized in that, between described valve rod (2) and valve body (5), is provided with graphite-seal ring (8).
5. a kind of three eccentric metal hard sealed butterfly damper according to claim 4, is characterized in that, the upper and lower of described graphite-seal ring (8) is all filled with graphite braided packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727185.7U CN203560467U (en) | 2013-11-18 | 2013-11-18 | Triple-eccentric metal hard-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727185.7U CN203560467U (en) | 2013-11-18 | 2013-11-18 | Triple-eccentric metal hard-sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560467U true CN203560467U (en) | 2014-04-23 |
Family
ID=50510188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727185.7U Expired - Fee Related CN203560467U (en) | 2013-11-18 | 2013-11-18 | Triple-eccentric metal hard-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591307A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Triple eccentric metal hard sealing butterfly valve |
| CN104595506A (en) * | 2015-02-09 | 2015-05-06 | 胡和锁 | Butterfly valve seal structure |
| CN104879508A (en) * | 2015-05-27 | 2015-09-02 | 中国船舶重工集团公司第七一一研究所 | High-reliability high-temperature buttery valve and application of butterfly valve on marine diesel engine |
-
2013
- 2013-11-18 CN CN201320727185.7U patent/CN203560467U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591307A (en) * | 2013-11-18 | 2014-02-19 | 交城县鑫升机械有限公司 | Triple eccentric metal hard sealing butterfly valve |
| CN104595506A (en) * | 2015-02-09 | 2015-05-06 | 胡和锁 | Butterfly valve seal structure |
| CN104879508A (en) * | 2015-05-27 | 2015-09-02 | 中国船舶重工集团公司第七一一研究所 | High-reliability high-temperature buttery valve and application of butterfly valve on marine diesel engine |
| CN104879508B (en) * | 2015-05-27 | 2018-01-16 | 中国船舶重工集团公司第七一一研究所 | The high temperature butterfly valve of high reliability and its purposes on boat diesel engine |
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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: 20140423 Termination date: 20201118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |