CN103470793A - Double-slope eccentric butterfly valve - Google Patents
Double-slope eccentric butterfly valve Download PDFInfo
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- CN103470793A CN103470793A CN2013104337753A CN201310433775A CN103470793A CN 103470793 A CN103470793 A CN 103470793A CN 2013104337753 A CN2013104337753 A CN 2013104337753A CN 201310433775 A CN201310433775 A CN 201310433775A CN 103470793 A CN103470793 A CN 103470793A
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Abstract
The invention provides a double-slope eccentric butterfly valve. The double-slope eccentric butterfly valve comprises a valve body, a valve rod, a valve plate and a metal sealing socket, wherein an inlet, an outlet and a valve cavity capable of communicating the inlet with the outlet are arranged in the valve body, a shaft hole is formed in the valve cavity part of the valve body, and the valve rod penetrates through the shaft hole to be fixedly connected with the valve plate; a metal valve seat integrated with the valve body into a whole is arranged on the valve body, and the valve plate is driven by the valve rod to open and close on the metal valve seat; the metal sealing socket is arranged on the valve plate in a clamping manner through a sealing ring cover plate and is in seal fit with the metal valve seat; a first gap and a second gap communicated with one another are formed between the metal sealing socket and the valve plate, a metal C-ring is arranged in the first gap, and the metal C-ring is partially embedded in a groove formed on the surface of the valve plate; a self-sealing combined structure is arranged in the second gap. According to the double-slope eccentric butterfly valve provided by the invention, the integrated metal seating socket and a floating sealing structure are adopted, and the service life and usability of the butterfly valve are remarkably improved.
Description
Technical field
The invention belongs to valve field, be 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 elasticity preferably, is easy to guarantee the qualified of product zero leakage.But also there is defect in this structure: 1) the conventional construction sealing principle is still the distortion by the sealing seat elastic packing and produces larger specific pressure, sealing is still by graphite or asbestos and seals, metal just plays the skeleton supporting effect, the hardness of graphite and asbestos is very low, so the operating mode of particle is being arranged, the multi-level sealing of tradition is easy to destroy.2) the 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 the 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.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of and can under the various flow directions, pressure and temperature, realize that 90 degree rotations are without friction, zero leakage, the double inclined plane eccentric-butterfly-valve that the life-span is long.
The present invention is achieved through the following technical solutions:
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, be provided with the valve pocket of import, outlet and connection import and outlet in valve body, the valve pocket of valve body partly offers axis hole, and valve rod is fixedly connected with valve plate through described axis hole;
Be provided with the metal seat valve with the valve body one on described valve body, described valve plate opens and closes under the drive of valve rod on metal seat valve; The metal sealing seat clamps and is arranged on valve plate by the seal ring cover plate, and is sealed and matched with metal seat valve;
Form two the first gaps that interconnect and the second gap between described metal sealing seat and valve plate, 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; Be provided with the selfsealings composite structure in described the second gap.
The further setting of the present invention is, described selfsealings composite structure comprises the first seal ring, gasket ring and the second seal ring, be provided with the V-type groove on described the first seal ring, 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.
The further setting of the present invention is, described valve plate and valve rod are fixed together by a plurality of taper pins.
The further setting of the present invention 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 of the present invention 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 the integrated type metal seat valve, has higher mechanical property, the rub resistance wearing and tearing, intensity is high, and hardness is high, is applicable to various operating modes; Metal C type circle under while metal sealing seat, less with the tactile area of metal sealing seated connection, the metal sealing seat is easy to mobile, own centering position.So, in switch moment, the metal sealing seat is easy to mobile, thereby avoided the fretting wear with valve body; The present invention can significantly promote working life and the usability of butterfly valve.
The accompanying drawing explanation
The structural drawing that Fig. 1 is double inclined plane eccentric-butterfly-valve of the present invention;
The partial enlarged drawing that Fig. 2 is I district in Fig. 1;
Fig. 3 is that the metal sealing seat is from centering schematic diagram one;
Fig. 4 is that the 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 present invention will be further described in detail.
As Figure 1-4, the invention 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, be provided with the valve pocket of import, outlet and connection import and outlet in valve body 1, 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.
Be provided with the metal seat valve with valve body 1 one on described valve body 1, described valve plate 4 opens and closes under the drive of valve rod 11 on metal seat valve; Metal sealing seat 6 clamps and is arranged on valve plate 4 by seal ring cover plate 5, and is sealed and matched with metal seat valve.
Form two the first gaps that interconnect and the second gap between described metal sealing seat 6 and valve plate 4, 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; Be provided with selfsealings composite structure 3 in described the second gap.
Described selfsealings composite structure 3 comprises the first seal ring 31, gasket ring 32 and the second seal ring 33, be provided with the V-type groove on described the first seal ring 31, 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.
Be provided with muff 7, Packing seat 8, filler 9 and Gland 10 between described valve rod 11 and valve body 1, filler 9 is arranged on Packing seat 8 and Gland 10.
The working principle of double inclined plane eccentric-butterfly-valve of the present invention 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 present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.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), be provided with the valve pocket of import, outlet and connection import and outlet in valve body (1), 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;
Be provided with the metal seat valve with valve body (1) one on described valve body (1), described valve plate (4) opens and closes under the drive of valve rod (11) on metal seat valve; Metal sealing seat (6) clamps and is arranged on valve plate (4) above by seal ring cover plate (5), and is sealed and matched with metal seat valve;
Form two the first gaps that interconnect and the second gap between described metal sealing seat (6) and valve plate (4), 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; Be provided with selfsealings composite structure (3) in described the second gap.
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), be provided with the V-type groove on described the first seal ring (31), 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, be provided with muff (7), Packing seat (8), filler (9) and Gland (10) between described valve rod (11) and valve body (1), filler (9) is arranged on Packing seat (8) and Gland (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433775.3A CN103470793B (en) | 2013-09-22 | 2013-09-22 | Double inclined plane eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310433775.3A CN103470793B (en) | 2013-09-22 | 2013-09-22 | Double inclined plane eccentric-butterfly-valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470793A true CN103470793A (en) | 2013-12-25 |
| CN103470793B CN103470793B (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310433775.3A Active CN103470793B (en) | 2013-09-22 | 2013-09-22 | Double inclined plane eccentric-butterfly-valve |
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| CN (1) | CN103470793B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019243A (en) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | Butterfly valve with bi-directional sealing device |
| CN105864439A (en) * | 2016-06-03 | 2016-08-17 | 江南阀门有限公司 | Regulating type metal sealed butterfly valve |
| CN108916397A (en) * | 2018-09-06 | 2018-11-30 | 温州上沃阀门科技有限公司 | The valve plate of eccentric hard sealed flygate seals installing mechanism |
| CN113653814A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
| CN113653813A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | Maintenance mechanism of three eccentric butterfly valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860994A (en) * | 1987-06-29 | 1989-08-29 | Akira Oshima | Seal system for butterfly valve |
| CN1643279A (en) * | 2002-03-19 | 2005-07-20 | 费希尔控制国际公司 | Fluid flow control valve with bi-directional shutoff |
| KR20080000156U (en) * | 2006-12-19 | 2008-02-12 | 노창전 | The butterfly valve |
| CN202469026U (en) * | 2012-01-05 | 2012-10-03 | 浙江贝尔控制阀门有限公司 | Three-eccentric seal butterfly valve |
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN203500514U (en) * | 2013-09-22 | 2014-03-26 | 浙江贝尔控制阀门有限公司 | Eccentric butterfly valve with two inclined planes |
-
2013
- 2013-09-22 CN CN201310433775.3A patent/CN103470793B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4860994A (en) * | 1987-06-29 | 1989-08-29 | Akira Oshima | Seal system for butterfly valve |
| CN1643279A (en) * | 2002-03-19 | 2005-07-20 | 费希尔控制国际公司 | Fluid flow control valve with bi-directional shutoff |
| KR20080000156U (en) * | 2006-12-19 | 2008-02-12 | 노창전 | The butterfly valve |
| CN202469026U (en) * | 2012-01-05 | 2012-10-03 | 浙江贝尔控制阀门有限公司 | Three-eccentric seal butterfly valve |
| CN103291939A (en) * | 2013-06-21 | 2013-09-11 | 天津富赛克流体控制设备有限公司 | High-pressure ultra-low-temperature type all-metal hard sealing butterfly valve |
| CN203500514U (en) * | 2013-09-22 | 2014-03-26 | 浙江贝尔控制阀门有限公司 | Eccentric butterfly valve with two inclined planes |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019243A (en) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | Butterfly valve with bi-directional sealing device |
| CN105864439A (en) * | 2016-06-03 | 2016-08-17 | 江南阀门有限公司 | Regulating type metal sealed butterfly valve |
| CN108916397A (en) * | 2018-09-06 | 2018-11-30 | 温州上沃阀门科技有限公司 | The valve plate of eccentric hard sealed flygate seals installing mechanism |
| CN113653814A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
| CN113653813A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | Maintenance mechanism of three eccentric butterfly valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470793B (en) | 2015-09-30 |
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