CN203500514U - Eccentric butterfly valve with two inclined planes - Google Patents
Eccentric butterfly valve with two inclined planes Download PDFInfo
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- CN203500514U CN203500514U CN201320590497.8U CN201320590497U CN203500514U CN 203500514 U CN203500514 U CN 203500514U CN 201320590497 U CN201320590497 U CN 201320590497U CN 203500514 U CN203500514 U CN 203500514U
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Abstract
The utility model provides an eccentric butterfly valve with two inclined planes. The eccentric butterfly valve comprises a valve body, a valve rod, a valve plate and a metal seal stand. An inlet, an outlet and a valve cavity communicated with the inlet and the outlet are disposed inside the valve body. The valve cavity of the valve body is provided with a shaft hole, and the valve rod passes through the shaft hole to be fixedly connected with the valve plate. The valve body is equipped with a metal valve stand that is combined with the valve body to be a whole body. The valve plate is driven by the valve rod to be open and closed on the metal valve stand. The metal seal stand is clamped on the valve plate through a sealing ring cover plate and cooperates with the metal valve stand in a sealed manner. A first gap and a second gap communicated with each other are formed between the metal seal stand and the valve plate. A metal C-shaped ring is disposed in the first gap and is partially embedded into a groove on the surface of the valve plate. A self-seal combination structure is arranged in the second gap. The eccentric butterfly valve with two inclined planes has an integral metal seal stand structure and a floating sealed type structure, so the service life and the use performance of the butterfly valve can be substantially improved.
Description
Technical field
The utility model belongs to valve field, is specifically related to a kind of double inclined plane eccentric-butterfly-valve.
Background technique
Traditional three eccentric butterfly valve adopts Multi-layer sealing structure (metallic graphite carbon, the combination of tetrafluoroethylene or asbestos), although sealing configuration has good elasticity, is easy to guarantee the qualified of product zero leakage.But also there is defect in this structure: 1) conventional construction sealing principle is still the distortion by sealing seat elastic packing and produces larger specific pressure, sealing is still by graphite or asbestos and seals, metal just plays skeleton supporting effect, the hardness of graphite and asbestos is very low, so there is being the operating mode of particle, the multi-level sealing of tradition is easy to destroy.2) valve sealing face deformation comparison is large during switch, so the fretting wear of turn-off transient sealing surface is more serious, has influence on its life-span.3) under low temperature Multi-layer sealing seat due to the effect of expanding with heat and contract with cold of material, tetrafluoroethylene, graphite, asbestos seal seat thickness can attenuation, so that produce gap on sealing seat and cover plate, causes leakage.
Model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of and can under the various flow directions, pressure and temperature, realize 90 degree rotations without friction, zero leakage, the double inclined plane eccentric-butterfly-valve that the life-span is long.
The utility model is achieved by the following technical solution:
A kind of double inclined plane eccentric-butterfly-valve, it is characterized in that, comprise valve body, valve rod, valve plate and metal sealing seat, in valve body, be provided with the valve pocket of import, outlet and connection import and outlet, the valve pocket of valve body partly offers axis hole, and valve rod is fixedly connected with valve plate through described axis hole;
On described valve body, be provided with the metal seat valve with valve body one, described valve plate opens and closes under the drive of valve rod on metal seat valve; Metal sealing seat is clamped and is arranged on valve plate by seal ring cover plate, and is sealed and matched with metal seat valve;
Between described metal sealing seat and valve plate, form two the first gaps that interconnect and the second gap, be provided with metal C type circle in described the first gap, described metal C type circle is partially embedded in the groove on valve plate surface; In described the second gap, be provided with selfsealings composite structure.
Further setting of the present utility model is, described selfsealings composite structure comprises the first seal ring, gasket ring and the second seal ring, on described the first seal ring, be provided with V-type groove, described gasket ring is arranged in described V-type groove, one end face of described the second seal ring is provided with spur, the V-type channel opening end butt of described spur and the first seal ring.
Further setting of the present utility model is, described valve plate and valve rod are fixed together by a plurality of taper pins.
Further setting of the present utility model is, is provided with muff, Packing seat, filler and Gland between described valve rod and valve body, and filler is arranged on Packing seat and Gland.
Double inclined plane eccentric-butterfly-valve described in the utility model has been taked integrated type metal sealing seat and the structure of the close formula of floating, and valve body built-up welding stellite forms integrated type metal seat valve, has higher mechanical property, rub resistance wearing and tearing, intensity is high, and hardness is high, is applicable to various operating modes; Metal C type circle under metal sealing seat, less with metal sealing seat area of contact simultaneously, and metal sealing seat is easy to mobile, own centering position.So in switch moment, metal sealing seat is easy to mobile, thereby avoided the fretting wear with valve body; The utility model can significantly promote working life and the usability of butterfly valve.
Accompanying drawing explanation
Fig. 1 is the structural drawing of double inclined plane eccentric-butterfly-valve described in the utility model;
The partial enlarged drawing in Tu2Wei Tu1Zhong I district;
Fig. 3 is that metal sealing seat is from centering schematic diagram one;
Fig. 4 is that metal sealing seat is from centering schematic diagram two;
In figure, the implication of each label is:
1: valve body, 2: metal C type circle, 3: selfsealings composite structure, 4: valve plate, 5: seal ring cover plate, 6: metal sealing seat, 7: muff, 8: Packing seat, 9: filler, 10: Gland, 11: valve rod, 12: taper pin, the first seal ring 31, gasket ring 32 and the second seal ring 33.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As Figure 1-4, the utility model provides a kind of double inclined plane eccentric-butterfly-valve, comprise valve body 1, valve rod 11, valve plate 4 and metal sealing seat 6, in valve body 1, be provided with the valve pocket of import, outlet and connection import and outlet, the valve pocket of valve body partly offers axis hole, and valve rod 11 is fixedly connected with valve plate 4 by a plurality of taper pins 12 through described axis hole.
On described valve body 1, be provided with the metal seat valve with valve body 1 one, described valve plate 4 opens and closes under the drive of valve rod 11 on metal seat valve; Metal sealing seat 6 is clamped and is arranged on valve plate 4 by seal ring cover plate 5, and is sealed and matched with metal seat valve.
Between described metal sealing seat 6 and valve plate 4, form two the first gaps that interconnect and the second gap, be provided with metal C type circle 2 in described the first gap, described metal C type circle 2 is partially embedded in the groove on valve plate 4 surfaces; In described the second gap, be provided with selfsealings composite structure 3.
Described selfsealings composite structure 3 comprises the first seal ring 31, gasket ring 32 and the second seal ring 33, on described the first seal ring 31, be provided with V-type groove, described gasket ring 32 is arranged in described V-type groove, one end face of described the second seal ring 33 is provided with spur, the V-type channel opening end butt of described spur and the first seal ring 31.
Between described valve rod 11 and valve body 1, be provided with muff 7, Packing seat 8, filler 9 and Gland 10, filler 9 is arranged on Packing seat 8 and Gland 10.
The working principle of double inclined plane eccentric-butterfly-valve described in the utility model is:
A, MEDIA FLOW evolution are to (A direction), and medium can enter metal C type circle 2, and in the gap in valve plate 4 and valve body 1, contribute to 6 sealings of metal sealing seat under the effect of medium power.
B, MEDIA FLOW are closed direction (B direction), and medium enters in selfsealings composite structure 3, guarantee that from then on medium can not leak.
It is apparent to one skilled in the art that the utility model can be changed into various ways, and such change is not thought and departed from scope of the present utility model.All so apparent modifications of the technician to described field, within being included in the scope of this claim.
Claims (4)
1. a double inclined plane eccentric-butterfly-valve, it is characterized in that, comprise valve body (1), valve rod (11), valve plate (4) and metal sealing seat (6), in valve body (1), be provided with the valve pocket of import, outlet and connection import and outlet, the valve pocket of valve body partly offers axis hole, and valve rod (11) is fixedly connected with valve plate (4) through described axis hole;
On described valve body (1), be provided with the metal seat valve with valve body (1) one, described valve plate (4) opens and closes under the drive of valve rod (11) on metal seat valve; Metal sealing seat (6) is clamped and is arranged on valve plate (4) above by seal ring cover plate (5), and is sealed and matched with metal seat valve;
Between described metal sealing seat (6) and valve plate (4), form two the first gaps that interconnect and the second gap, be provided with metal C type circle (2) in described the first gap, described metal C type circle (2) is partially embedded in the groove on valve plate (4) surface; In described the second gap, be provided with selfsealings composite structure (3).
2. double inclined plane eccentric-butterfly-valve according to claim 1, it is characterized in that, described selfsealings composite structure (3) comprises the first seal ring (31), gasket ring (32) and the second seal ring (33), on described the first seal ring (31), be provided with V-type groove, described gasket ring (32) is arranged in described V-type groove, one end face of described the second seal ring (33) is provided with spur, the V-type channel opening end butt of described spur and the first seal ring (31).
3. double inclined plane eccentric-butterfly-valve according to claim 1, is characterized in that, described valve plate (4) is fixed together by a plurality of taper pins (12) with valve rod (11).
4. double inclined plane eccentric-butterfly-valve according to claim 1, it is characterized in that, between described valve rod (11) and valve body (1), be provided with muff (7), Packing seat (8), filler (9) and Gland (10), filler (9) is arranged on Packing seat (8) and Gland (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590497.8U CN203500514U (en) | 2013-09-22 | 2013-09-22 | Eccentric butterfly valve with two inclined planes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590497.8U CN203500514U (en) | 2013-09-22 | 2013-09-22 | Eccentric butterfly valve with two inclined planes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500514U true CN203500514U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590497.8U Expired - Fee Related CN203500514U (en) | 2013-09-22 | 2013-09-22 | Eccentric butterfly valve with two inclined planes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470793A (en) * | 2013-09-22 | 2013-12-25 | 浙江贝尔控制阀门有限公司 | Double-slope eccentric butterfly valve |
| CN107355557A (en) * | 2017-09-12 | 2017-11-17 | 浙江贝尔控制阀门有限公司 | A kind of floating valve seat high-performance regulating valve |
| CN108533333A (en) * | 2018-05-05 | 2018-09-14 | 宁波天生密封件有限公司 | A kind of steam turbine intubation seal device and its application method |
-
2013
- 2013-09-22 CN CN201320590497.8U patent/CN203500514U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470793A (en) * | 2013-09-22 | 2013-12-25 | 浙江贝尔控制阀门有限公司 | Double-slope eccentric butterfly valve |
| CN107355557A (en) * | 2017-09-12 | 2017-11-17 | 浙江贝尔控制阀门有限公司 | A kind of floating valve seat high-performance regulating valve |
| CN108533333A (en) * | 2018-05-05 | 2018-09-14 | 宁波天生密封件有限公司 | A kind of steam turbine intubation seal device and its application method |
| CN108533333B (en) * | 2018-05-05 | 2023-10-13 | 宁波天生密封件有限公司 | Steam turbine cannula sealing device and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |