CN202048221U - Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat - Google Patents
Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat Download PDFInfo
- Publication number
- CN202048221U CN202048221U CN2011201822128U CN201120182212U CN202048221U CN 202048221 U CN202048221 U CN 202048221U CN 2011201822128 U CN2011201822128 U CN 2011201822128U CN 201120182212 U CN201120182212 U CN 201120182212U CN 202048221 U CN202048221 U CN 202048221U
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- movable
- movable valve
- valve rod
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Abstract
The utility model relates to a bidirectional pressure bearing metal sealing butterfly valve with a movable valve seat, which comprises parts including a valve body, an upper valve rod, a lower valve rod, a butterfly plate press ring, a butterfly plate, a support, a stuffing gland, stuffing, a lower end cover, a sealing ring and a movable valve seat, etc. The valve seat of the butterfly valve is movable. The movable valve seat can perform slight axial movement along a flow channel center line of the valve body. The valve which can reliably achieve bidirectional pressure bearing under the effects of torque and medium force of a driving device is enabled to work reliably and has a long service lifetime. Meanwhile, the movable valve seat can be independently processed by a simple processing technology. The processing quality of the movable valve seat is easy to guarantee. Therefore, the production efficiency is effectively improved.
Description
Technical field
The utility model relates to a kind of movable valve seat bidirectional bearing metallic sealing butterfly valve.
Background technique
Traditional metallic sealing butterfly valve, sealing between the sealing pair is to rely on the moment of torsion be applied on the valve rod to be delivered between the sealing pair the necessary seal pressure of generation to finish, this structure easily produces friction between sealing pair and card squeezes, and causes sealing surface wear to accelerate even lost efficacy.Under the operating mode of high temperature or low temperature, the sealing pair material expands because of temperature variation produces or shrinks, and causes and stings complete and leakage phenomenon between the sealing pair, has a strong impact on the reliability that valve uses.The valve seat of traditional metallic sealing butterfly valve and valve body are an integral body, and valve seat can not produce necessary displacement, during the valve reverse pressure-bearing, easily produce between the sealing pair and leak.Traditional structure is also higher to the processing request of sealing surface of seat, and the valve seat position is unadjustable, influences the sealing reliability between production efficiency of products and the sealing pair.
The model utility content
The purpose of this utility model is the deficiency at above existing metallic sealing butterfly valve product, and by the new structure that technological innovation forms, the processing of this structure is simple, easily realizes two way sealed under the operating mode of high temperature or low temperature, and sealability is reliable, long service life.
The purpose of this utility model realizes by following technical measures:
Movable valve seat bidirectional bearing metallic sealing butterfly valve described in the utility model comprises valve body, upper valve rod, lower valve rod, the butterfly plate pressure ring, butterfly plate, support, Gland, filler, lower end cap, seal ring, movable valve seat, butterfly plate is installed in the valve flowing channel and upper valve rod, lower valve rod connects by pin, seal ring is by the butterfly plate pressure ring and be bolted on the butterfly plate and be positioned at upper valve rod and the same side of lower valve rod, movable valve seat is installed in valve flowing channel one side and matches with the sealing surface of seal ring, described upper valve rod and lower valve rod adopt eccentric mode to be installed in valve inner, the sealing surface disalignment distance of the rotating center of valve rod and movable valve seat is first offset distance, and the rotation centerline of upper valve rod and lower valve rod and valve flowing channel disalignment distance are second offset distance; Have in the runner of described valve body with valve body this as holistic boss.
Sealing surface between described seal ring and the movable valve seat is the conical surface that cooperatively interacts, and the bus of circular cone intersects at movable valve seat one side, and promptly conical tip is positioned at movable valve seat one side.Movable valve seat can lean on the conical surface automatic centering when assembling and throttle down; During the medium forward flow, medium power is pushed butterfly plate to movable valve seat, at this moment a side plane of movable valve seat and valve body boss fit tightly near the plane of movable valve seat one side, under the effect of medium power, produce the required necessary specific pressure of valve seal between seal ring and the movable valve seat, valve reaches the forward sealing, and described offset distance and cone angle can be calculated according to caliber size and determine.
Described movable valve seat can be done a spot of moving axially along the valve flowing channel center line, leaves suitable gap between the plane of close valve rod one side of movable valve seat and the valve rod cylndrical surface, can be used to regulate the seal pressure between the sealing pair.
Described movable valve seat is positioned at the centre of valve rod and boss, and its cross section is trapezoidal, and the face that matches with valve flowing channel is the cylndrical surface, and the movable valve seat outside is processed with groove, is inlaid with Sealing in the groove between movable valve seat and the valve flowing channel.
Described boss is positioned at a side of runner, boss upper edge diametric(al) some pod apertures that distributing, during the medium reverse flow, medium enters several pod apertures on the valve body boss, under the promotion of medium power, valve seat moves to seal ring, and valve seat closely contacts with seal ring, reach essential seal pressure between sealing pair, the size of pod apertures and quantity can be calculated according to the size of pressure and bore and determine.
The utility model is owing to adopt eccentric structure and the conical surface seal structure, and valve opening and when closing does not have friction and do not have card and squeeze between seal ring and the valve seat, prolong the working life of valve greatly.Owing to adopted movable valve seat construction, under the effect of medium power, can reach two way sealed " zero " between the sealing pair and leak, under the operating mode of high temperature or low temperature, when expansion of sealing pair material production or contraction, the trace of movable valve seat moves and can guarantee that valve does not produce scuffing, thereby guarantee valve energy reliably working, movable valve seat can be processed separately, and processing technology is simple, quality of processing guarantees easily, can enhance productivity effectively.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is a C-C sectional view of the present utility model;
Fig. 3 is an I of the present utility model position zoomed-in view.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, but does not constitute any restriction of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.
As Fig. 1, Fig. 2 and shown in Figure 3, the movable valve seat bidirectional bearing of the utility model metallic sealing butterfly valve, comprise valve body 5, upper valve rod 1, lower valve rod 12, butterfly plate pressure ring 6, butterfly plate 8, support 2, Gland 3, filler 4, lower end cap 13, seal ring 14, movable valve seat 15, butterfly plate 8 is installed in the valve flowing channel and upper valve rod 1, lower valve rod 12 connects by pin 7, seal ring 14 is fixed on the butterfly plate 8 by butterfly plate pressure ring 6 and bolt 9 and is positioned at upper valve rod 1 and the same side of lower valve rod 12, movable valve seat 15 is installed in valve flowing channel one side and matches with the sealing surface of seal ring 14, described upper valve rod 1 and lower valve rod 12 adopt eccentric mode to be installed in valve body 5 inside, the sealing surface disalignment distance of the rotating center of valve rod and movable valve seat 15 is A, and the rotation centerline of upper valve rod 1 and lower valve rod 12 and valve flowing channel disalignment distance are B; Have in the runner of described valve body 5 with 5 of valve bodies as holistic boss 10.
Sealing surface between described seal ring 14 and the movable valve seat 15 is the conical surface that cooperatively interacts, and the bus of circular cone intersects at movable valve seat 15 1 sides, and promptly conical tip is positioned at movable valve seat 15 1 sides.Movable valve seat 15 can lean on the conical surface automatic centering when assembling and throttle down; During the medium forward flow, medium power is pushed butterfly plate 8 to movable valve seat 15, one side plane of at this moment movable valve seat 15 and valve body boss 10 fit tightly near the plane of movable valve seat 15 1 sides, under the effect of medium power, produce the required necessary specific pressure of valve seal between seal ring 14 and the movable valve seat 15, valve reaches the forward sealing, and described offset distance and cone angle can be calculated according to caliber size and determine.
Described movable valve seat 15 can be done a spot of moving axially along the valve flowing channel center line, leaves suitable gap between the plane of movable valve seat 15 close valve rod one sides and the valve rod cylndrical surface, can be used to regulate the seal pressure between the sealing pair.
Described movable valve seat 15 is positioned at the centre of valve rod and boss 10, its cross section is trapezoidal, the face that matches with valve flowing channel is the cylndrical surface, movable valve seat 15 outsides are processed with groove, and the sealing between movable valve seat 15 and the valve flowing channel is to realize by the Sealing 16 that is embedded in the groove.
Described boss 10 is positioned at a side of runner, boss 10 upper edge diametric(al)s some pod apertures 11 that distributing, during the medium reverse flow, medium enters several pod apertures 11 on valve body 5 boss 10, under the promotion of medium power, movable valve seat 15 moves to seal ring 14, and movable valve seat 15 closely contacts with seal ring 14, reach essential seal pressure between sealing pair, the size of pod apertures 11 and quantity can be calculated according to the size of pressure and bore and determine.
The utility model is owing to adopt eccentric structure and the conical surface seal structure, valve opening and when closing, and not having friction between seal ring 14 and the movable valve seat 15, not have card crowded, prolongs the working life of valve greatly.Owing to adopted movable valve seat construction, under the effect of medium power, can reach two way sealed " zero " between the sealing pair and leak, under the operating mode of high temperature or low temperature, when expansion of sealing pair material production or contraction, the trace of movable valve seat 15 moves and can guarantee that valve does not produce scuffing, thereby guarantee valve energy reliably working, movable valve seat 15 can be processed separately, and processing technology is simple, quality of processing guarantees easily, can enhance productivity effectively.
Claims (5)
1. movable valve seat bidirectional bearing metallic sealing butterfly valve, comprise valve body (5), upper valve rod (1), lower valve rod (12), butterfly plate pressure ring (6), butterfly plate (8), support (2), Gland (3), filler (4), lower end cap (13), seal ring (14), movable valve seat (15), butterfly plate (8) is installed in the valve flowing channel and upper valve rod (1), lower valve rod (12) connects by pin (7), seal ring (14) is fixed on the same side that upper valve rod (1) and lower valve rod (12) were gone up and be positioned to butterfly plate (8) by butterfly plate pressure ring (6) and bolt (9), movable valve seat (15) is installed in valve flowing channel one side and matches with the sealing surface of seal ring (14), it is characterized in that, described upper valve rod (1) and lower valve rod (12) adopt eccentric mode to be installed in valve body (5) inside, the sealing surface disalignment distance of the rotating center of valve rod and movable valve seat (15) is the first offset distance A, and the rotation centerline of upper valve rod (1) and lower valve rod (12) and valve flowing channel disalignment distance are the second offset distance B; Have in the runner of described valve body (5) with valve body (5) this as holistic boss (10).
2. movable valve seat bidirectional bearing metallic sealing butterfly valve according to claim 1, it is characterized in that: the sealing surface between described seal ring (14) and the movable valve seat (15) is the conical surface that cooperatively interacts, and the bus of circular cone intersects at movable valve seat (15) one sides.
3. movable valve seat bidirectional bearing metallic sealing butterfly valve according to claim 1 is characterized in that: leave suitable gap between the plane of close valve rod one side of movable valve seat (15) and the valve rod cylndrical surface.
4. movable valve seat bidirectional bearing metallic sealing butterfly valve according to claim 1, it is characterized in that: described movable valve seat (15) is positioned at the centre of valve rod and boss (10), its cross section is trapezoidal, the face that matches with valve flowing channel is the cylndrical surface, movable valve seat (15) outside is processed with groove, is inlaid with Sealing (16) in the groove between movable valve seat (15) and the valve flowing channel.
5. movable valve seat bidirectional bearing metallic sealing butterfly valve according to claim 1, it is characterized in that: described boss (10) is positioned at a side of runner, boss (10) the upper edge diametric(al) some pod apertures (11) that distributing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201822128U CN202048221U (en) | 2011-05-19 | 2011-05-19 | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201822128U CN202048221U (en) | 2011-05-19 | 2011-05-19 | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048221U true CN202048221U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201822128U Expired - Fee Related CN202048221U (en) | 2011-05-19 | 2011-05-19 | Bidirectional pressure bearing metal sealing butterfly valve having movable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048221U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494145A (en) * | 2011-12-03 | 2012-06-13 | 宣达实业集团浙江耐森阀业有限公司 | Bidirectional full metal hard seal butterfly valve |
| CN103672158A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic butterfly valve with composite heat dissipation disc valve cover |
| CN108980376A (en) * | 2018-08-07 | 2018-12-11 | 王中杰 | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
| CN110145608A (en) * | 2019-06-13 | 2019-08-20 | 博纳斯威阀门股份有限公司 | The medium temperature two-way hard seal butterfly valve of valve rod positioning |
| CN113932019A (en) * | 2021-10-16 | 2022-01-14 | 东宝阀门有限公司 | High-pressure self-sealing butterfly valve |
| WO2022133900A1 (en) * | 2020-12-24 | 2022-06-30 | 浙江石化阀门有限公司 | High-pressure large-diameter two-way hard-sealing butterfly valve |
-
2011
- 2011-05-19 CN CN2011201822128U patent/CN202048221U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494145A (en) * | 2011-12-03 | 2012-06-13 | 宣达实业集团浙江耐森阀业有限公司 | Bidirectional full metal hard seal butterfly valve |
| CN103672158A (en) * | 2013-12-18 | 2014-03-26 | 湖北泰和石化设备有限公司 | Cryogenic butterfly valve with composite heat dissipation disc valve cover |
| CN103672158B (en) * | 2013-12-18 | 2015-11-18 | 湖北泰和石化设备有限公司 | A kind of compound is fallen apart Winchester disk valve gap deep cooling butterfly valve |
| CN108980376A (en) * | 2018-08-07 | 2018-12-11 | 王中杰 | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
| CN110145608A (en) * | 2019-06-13 | 2019-08-20 | 博纳斯威阀门股份有限公司 | The medium temperature two-way hard seal butterfly valve of valve rod positioning |
| WO2022133900A1 (en) * | 2020-12-24 | 2022-06-30 | 浙江石化阀门有限公司 | High-pressure large-diameter two-way hard-sealing butterfly valve |
| CN113932019A (en) * | 2021-10-16 | 2022-01-14 | 东宝阀门有限公司 | High-pressure self-sealing butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUANDA INDUSTRIAL GROUP CO., LTD. Free format text: FORMER OWNER: XUANDA INDUSTRIAL GROUP ZHEJIANG NAISEN NAISEN BUTTERFLY VALVE CO., LTD. Effective date: 20140124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325100 WENZHOU, ZHEJIANG PROVINCE TO: 325105 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140124 Address after: Dong'ou Industrial Park, Yongjia County, Wenzhou City, Zhejiang province 325105 Patentee after: Xuanda Industrial Group Co., Ltd. Address before: Dong'ou Industrial Zone Oubei town of Yongjia County, Wenzhou City, Zhejiang province 325100 Patentee before: Zhejiang Naisen Butterfly Valve Co., Ltd., Yida Industry Group |
|
| 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: 20111123 Termination date: 20200519 |