CN101984275A - Full-lining bidirectional composite soft sealing butterfly valve - Google Patents
Full-lining bidirectional composite soft sealing butterfly valve Download PDFInfo
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- CN101984275A CN101984275A CN 201010515334 CN201010515334A CN101984275A CN 101984275 A CN101984275 A CN 101984275A CN 201010515334 CN201010515334 CN 201010515334 CN 201010515334 A CN201010515334 A CN 201010515334A CN 101984275 A CN101984275 A CN 101984275A
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Abstract
The invention discloses a full-lining bidirectional composite soft sealing butterfly valve, which belongs to a butterfly valve for a pipeline of fresh water, gas and the like in large water supply and drainage engineering and seawater and sewage treatment. The butterfly valve comprises a valve body, a valve seat arranged on the valve body, a valve plate rotating around a valve shaft, a valve shaft connected with the valve plate, a connection seat, a gland, a bushing, a seal ring and a rear end cover arranged on the bottom part of the valve body, wherein the connection seat, the gland, the bushing and the seal ring are arranged on the upper part of the valve body, thevalve shaft is connected with the valve plate by an upper valve shaft (4) and a lower valve shaft (9) through a square or flat head; the valve plate (2) is an inclined plate spherical surface; the valve seat (3) is directly vulcanized on the valve body (1) in a composite eccentric bevel sealing mode and completely covers the valve body (1); the upper and lower supports of the valve body (1) are sealed by an O-shaped seal ring (8); the O-shaped seal ring (8) is compacted by a packing gland (6) and the bushing (7); and the bushing (7) is installed in the upper and lower supports of the valve body (1). The invention has the advantages of capability of avoiding locking or over-closing, corrosion resistance, long service life, high sealing performance and the like.
Description
Technical field
Full lining bidirectional composite soft sealing butterfly valve belongs to large-scale water supply and sewage engineering, seawater, sewage treatment, fresh water, pipeline butterfly valves such as gas.
Background technique
Butterfly valve is meant that the closure member butterfly plate is a disk, rotates a kind of valve that reaches open and close around valve shaft, and main rising cut off and throttling usefulness on pipeline, is widely used in large-scale water supply and sewage engineering, seawater, sewage treatment, and fresh water is on the pipelines such as gas.The butterfly valve open-shut device is a discoidal valve plate, and the axis around himself in valve body rotates, thereby reaches the purpose that opens and closes or regulate.Existing butterfly valve is made up of valve body, valve seat (rubber base), valve shaft, valve plate, axle sleeve, joint chair, end cap, transmission device etc.Wherein be connected with taper pin between valve shaft and the valve plate, have in use that internal corrosion is serious, sealing station is inaccurate, the easy locking of valve plate or closed the position when closing can not be satisfied problems such as two way sealed requires, the switch moment of large-diameter butterfly valve is excessive.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, provide a kind of corrosion-resistant, long service life to avoid locking or pass to close the border position, the full lining bidirectional composite soft sealing butterfly valve of good seal performance simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: this full lining bidirectional composite soft sealing butterfly valve, comprise valve body, be arranged on the valve seat on the valve body, valve plate around the valve shaft rotation, be connected in the valve shaft of valve plate, and the joint chair that is positioned at valve body top, Gland, lining, seal ring and the rear end cover that is positioned at the valve body bottom, it is characterized in that: valve shaft is connected valve plate with lower valve shaft by square toes or homalocephalus by last valve shaft, valve plate is the swash plate sphere, valve seat adopts composite eccentric inclined-plane seal form directly to vulcanize on valve body and covers valve body fully, lower support is by the sealing of O RunddichtringO on the valve body, the O RunddichtringO is by Gland and lining compacting, mounting bush in the lower support on the valve body.
The composite eccentric inclined-plane seal form that valve seat adopts is that two off-centre are overlapping at the valve body center.
Valve plate sprays the tetrafluoro layer outward.
Valve plate sprays plastic layer outward.
The outer spray epoxy layer of valve plate.Main effect is anticorrosion.
The outer anticorrosive coat of valve plate has guaranteed the antiseptic effect of valve plate and medium contact segment, thereby has improved valve working life.Simultaneously, valve plate adopts swash plate spheric structure seal form, makes that also to be held open flexible switch moment under the bigger situation of bidirectional pressure difference little, has realized two way sealed, is difficult for locking, close only position, but any direction is installed.
Compared with prior art, the beneficial effect that full lining bidirectional composite soft sealing butterfly valve of the present invention had is:
1, the valve seat of this valve adopts composite eccentric inclined-plane seal form, and valve plate contacts simultaneously in opening-closing process and breaks away from seal valve seat, has good compensation and limit function.
2, valve plate adopts novel preservative treatment technology, has improved the corrosion resistance of valve plate, has prolonged the working life of butterfly valve.
3, valve plate adopts swash plate ball face sealing form to make also to be held open flexible switch moment under the bigger situation of bidirectional pressure difference little, has realized two way sealed, and valve plate is difficult for locking, close only position, but any direction is installed.
4, the direct sulfuration of the valve seat of this valve has been avoided the loosening of valve seat and has been come off on valve body, and medium and metal valve body are isolated fully, has reduced the corrosion of medium to metal valve body.Thereby prolonged the working life of valve.
5, go up valve shaft and be connected valve plate by square toes or homalocephalus, do not have the pin connection and avoided medium directly to contact, prevent the valve shaft corrosion, prolong the valve shaft life-span with metal with lower valve shaft.
Description of drawings
Fig. 1 is an A-A sectional structure schematic representation of the present invention.
Fig. 2 is a full lining bidirectional composite soft sealing butterfly valve structural representation of the present invention.
Fig. 3 is a B-B sectional structure schematic representation of the present invention.
Fig. 1-the 3rd, the most preferred embodiment of full lining bidirectional composite soft sealing butterfly valve of the present invention.Wherein: 1, valve body 2, valve plate 3, valve seat 4, last valve shaft 5, joint chair 6, Gland 7, lining 8O RunddichtringO 9 lower valve shafts 10 rear end covers.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing 1-3:
With reference to accompanying drawing 1-3:
This full lining bidirectional composite soft sealing butterfly valve is made up of valve body 1, valve plate 2, valve seat 3, last valve shaft 4, joint chair 5, Gland 6, lining 7, O RunddichtringO 8, lower valve shaft 9 and rear end cover 10.Valve seat 3 adopts composite eccentric inclined-plane seal form directly to vulcanize on valve body 1 and covers valve body 1 fully, and extend to 1 liang of outside of valve body, as shown in Figure 1, valve seat 3 forms angle α and relative axle center (also being the valve body center) offset distance e with valve plate 2 upper semi-circles, valve seat 3 and valve plate 2 lower semi-circle form angle α and relative axle center (also being the valve body center) offset distance e, and two off-centre is the overlapping composite eccentric inclined-plane seal form that promptly forms valve seat 3 at the valve body center.Last valve shaft 4 and lower valve shaft 9 are positioned on valve body 1 center line, wherein go up valve shaft 4 and lower valve shaft 9 and are connected valve plate by square toes; Square toes are valve shaft to be processed into the square hole of processing on square toes and the valve plate cooperate.According to the design needs also can be homalocephalus and the cooperating of flat hole.Valve plate 2 is the swash plate spherical shape, and its swash plate sphere and axle center form angle β, valve plate 2 outer spraying tetrafluoro layers.Valve plate 2 is installed on valve shaft 4 and the lower valve shaft 9, does not have pin between last lower valve shaft and the valve plate and is connected and has avoided medium directly to contact with metal, prevents that valve shaft from corroding, prolongation valve shaft working life.O RunddichtringO 8 is installed in the U type groove the inside of lower support on the valve body 1, and copper bush 7 is installed in the lower support on the valve body 1, and Gland 6 is pressed in outside the lining 7 on valve body 1 top, joint chair 5 be installed in valve body 1 upper support above, rear end cover 10 is pressed in valve body 1 lower support bottom.
Also can spray plastic layer outside the valve plate 2.
Also can the spray epoxy layer outside the valve plate 2.The main antisepsis that rises.
Working procedure is as follows: this butterfly valve is to be cooperated with the valve seat 3 of composite eccentric inclined-plane seal form with the valve plate 2 of lower valve shaft 9 roating sphere face seals by last valve shaft 4 by transmission device, realizes the switching motion of butterfly valve.Valve plate 2 contacts simultaneously in opening-closing process and breaks away from seal valve seat 3, has realized two way sealed, and valve plate 2 is difficult for locking, closes only position.
Claims (5)
1. full lining bidirectional composite soft sealing butterfly valve, comprise valve body, be arranged on the valve seat on the valve body, valve plate around the valve shaft rotation, be connected in the valve shaft of valve plate, and the joint chair that is positioned at valve body top, Gland, lining, seal ring and the rear end cover that is positioned at the valve body bottom, it is characterized in that: valve shaft is connected valve plate with lower valve shaft (9) by square toes or homalocephalus by last valve shaft (4), valve plate (2) is the swash plate sphere, valve seat (3) adopts composite eccentric inclined-plane seal form directly to vulcanize at valve body (1) and goes up and cover fully valve body (1), valve body (1) is gone up lower support by O RunddichtringO (8) sealing, O RunddichtringO (8) is by Gland (6) and lining (7) compacting, and valve body (1) is gone up mounting bush (7) in the lower support.
2. full lining bidirectional composite soft sealing butterfly valve according to claim 1 is characterized in that: the composite eccentric inclined-plane seal form that valve seat (3) adopts is that two off-centre are overlapping at the valve body center.
3. full lining bidirectional composite soft sealing butterfly valve according to claim 1 is characterized in that: the outer spraying of valve plate (2) tetrafluoro layer.
4. full lining bidirectional composite soft sealing butterfly valve according to claim 1 is characterized in that: the outer spraying of valve plate (2) plastic layer.
5. full lining bidirectional composite soft sealing butterfly valve according to claim 1 is characterized in that: the outer spray epoxy layer of valve plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010515334 CN101984275A (en) | 2010-06-07 | 2010-10-12 | Full-lining bidirectional composite soft sealing butterfly valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010205021A CN101858441A (en) | 2010-06-07 | 2010-06-07 | Full lining bidirectional composite soft sealing butterfly valve |
| CN201010205021.9 | 2010-06-07 | ||
| CN 201010515334 CN101984275A (en) | 2010-06-07 | 2010-10-12 | Full-lining bidirectional composite soft sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101984275A true CN101984275A (en) | 2011-03-09 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010205021A Pending CN101858441A (en) | 2010-06-07 | 2010-06-07 | Full lining bidirectional composite soft sealing butterfly valve |
| CN 201010515334 Pending CN101984275A (en) | 2010-06-07 | 2010-10-12 | Full-lining bidirectional composite soft sealing butterfly valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010205021A Pending CN101858441A (en) | 2010-06-07 | 2010-06-07 | Full lining bidirectional composite soft sealing butterfly valve |
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| Country | Link |
|---|---|
| CN (2) | CN101858441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860672A (en) * | 2021-09-15 | 2021-12-31 | 江西省农业科学院土壤肥料与资源环境研究所 | Municipal domestic sludge solidification treatment equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221092A (en) * | 2011-05-23 | 2011-10-19 | 无锡科磊阀业有限公司 | Seal ring structure of flexible seal butterfly valve |
| CN110486485A (en) * | 2019-09-20 | 2019-11-22 | 天津银河阀门有限公司 | A kind of centre-pivoted butterfly valve valve board assembly and centre-pivoted butterfly valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4513765A (en) * | 1981-10-14 | 1985-04-30 | A/S Westad Armaturfabrik | Arrangement on a butterfly valve |
| CN2064445U (en) * | 1990-03-30 | 1990-10-24 | 马贺生 | Sealed butterfly bamper with corrosion protecting function |
| CN2318463Y (en) * | 1998-01-19 | 1999-05-12 | 天津塘沽瓦特斯阀门有限公司 | Telescopic flange butterfly valve |
| CN2396243Y (en) * | 1999-11-19 | 2000-09-13 | 黄一立 | Three eccentric sealing butterfly valve |
| CN2558819Y (en) * | 2002-04-03 | 2003-07-02 | 张大利 | Soft seal butterfly valve |
| CN201884681U (en) * | 2010-06-07 | 2011-06-29 | 山东鲁临阀门有限公司 | Fully-lined two-way compound soft seal butterfly valve |
-
2010
- 2010-06-07 CN CN201010205021A patent/CN101858441A/en active Pending
- 2010-10-12 CN CN 201010515334 patent/CN101984275A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4513765A (en) * | 1981-10-14 | 1985-04-30 | A/S Westad Armaturfabrik | Arrangement on a butterfly valve |
| CN2064445U (en) * | 1990-03-30 | 1990-10-24 | 马贺生 | Sealed butterfly bamper with corrosion protecting function |
| CN2318463Y (en) * | 1998-01-19 | 1999-05-12 | 天津塘沽瓦特斯阀门有限公司 | Telescopic flange butterfly valve |
| CN2396243Y (en) * | 1999-11-19 | 2000-09-13 | 黄一立 | Three eccentric sealing butterfly valve |
| CN2558819Y (en) * | 2002-04-03 | 2003-07-02 | 张大利 | Soft seal butterfly valve |
| CN201884681U (en) * | 2010-06-07 | 2011-06-29 | 山东鲁临阀门有限公司 | Fully-lined two-way compound soft seal butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860672A (en) * | 2021-09-15 | 2021-12-31 | 江西省农业科学院土壤肥料与资源环境研究所 | Municipal domestic sludge solidification treatment equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101858441A (en) | 2010-10-13 |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110309 |