CN104500761A - Water-sealed butterfly valve - Google Patents
Water-sealed butterfly valve Download PDFInfo
- Publication number
- CN104500761A CN104500761A CN201410699930.0A CN201410699930A CN104500761A CN 104500761 A CN104500761 A CN 104500761A CN 201410699930 A CN201410699930 A CN 201410699930A CN 104500761 A CN104500761 A CN 104500761A
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- valve body
- butterfly
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
- F16K1/446—Details of seats or valve members of double-seat valves the seats being in series with additional cleaning or venting means between the two seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a water-sealed butterfly valve comprising a valve body. The valve body is provided with an inlet end and an outlet end. A valve shaft is movably supported in the valve body and further arranged between the inlet end and the outlet end. A pair of butterfly plates are parallelly spaced on a valve shaft body and contact the body through sealing rings for sealing. The valve shaft is driven by a motor to rotate and drive the butterfly plates simultaneously to open or shut off the valve body. As the shaft valve drives the butterfly plates to simultaneously shut off the valve body, the butterfly plate, the sealing rings and the valve body are combined to form a sealing valve chamber. A water opening and an air exhausting and water feeding opening are formed in the valve body and communicated with the sealing valve chamber. In case that water is injected in the sealing valve chamber through the water opening in the valve body, the valve body is subjected to water-sealed shutting off through the sealing valve chamber; each of the inside walls of the inlet end and the outlet end of the valve body is sleeved with a flushing ring pipe in a circle, and a plurality of nozzles are formed in each flushing ring pipe and align to the sealing ring on the same side. The water-sealed butterfly valve is good in sealing effect.
Description
Technical field
The present invention relates to the Water seal butterfly valve for power plant's gas pipe line.
Background technique
The structure of the butterfly valve that current power plant gas pipe line uses is: comprise the valve body being provided with entrance point and outlet end, in valve body between entrance point and outlet end, expansion bearing has valve shaft, the axle body of valve shaft is fixed with one piece of butterfly plate, butterfly plate to be contacted with valve body by seal ring and seals, valve shaft is by motor-driven rotation, synchronous drive butterfly plate rotates, and butterfly plate is opened or cuts off valve body.The shortcoming of above-mentioned butterfly valve is: on the one hand, and sealing is poor, easily causes gas leakage, for production safety has buried hidden danger; On the other hand, the perishable seal rings of impurity such as the impurity such as the tar in coal gas easily stick on seal ring, these tar, thus reduce the working life of seal ring, add enterprise's production and application cost, and the sealing effect being stained with the seal ring of the impurity such as tar and valve body is poorer.
Summary of the invention
The object of this invention is to provide a kind of Water seal butterfly valve of good sealing effect.
For achieving the above object, present invention employs following technological scheme: described Water seal butterfly valve, comprise: the valve body being provided with entrance point and outlet end, in valve body between entrance point and outlet end, expansion bearing has valve shaft, on the axle body of valve shaft, parallel interval is provided with a pair butterfly plate, two pieces of butterfly plates to contact with valve body respectively by seal ring and seal, valve shaft is by motor-driven rotation, synchronous drive two pieces of butterfly plates are opened simultaneously or cut off valve body, when valve shaft drives two pieces of butterfly plates to cut off valve body simultaneously, two pieces of butterfly plates, seal ring on two pieces of butterfly plates and valve body form sealing valve pocket jointly, valve body offers and seals intake-outlet that valve pocket is connected and be vented water supplement port, after sealing valve pocket is filled water by the intake-outlet by valve body, sealing valve pocket forms water seal to valve body and cuts off, the valve interior wall of entrance point and outlet end is arranged with the flushing endless tube that a circle offers some spouts respectively, and the spout that often circle rinses on endless tube aims at the seal ring with its homonymy respectively.
Further, aforesaid Water seal butterfly valve, wherein: valve body is connected with the water pipe being provided with water supply valve and the waste pipe that is provided with drain valve by intake-outlet simultaneously, valve body is connected with the outlet pipe being provided with outlet valve and the water-adding pipe that is provided with water-feeding valve by exhaust water supplement port simultaneously.
Further, aforesaid Water seal butterfly valve, wherein: rinse endless tube and be connected with the cleaning hose being provided with flushing valve.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: good sealing effect, can clear up in time impurity such as the tar on seal ring, extend the working life of seal ring, reduce enterprise's production and application cost, improve production and application Security.
Accompanying drawing explanation
Fig. 1 is the structural representation of Water seal butterfly valve of the present invention.
Fig. 2 is the structural representation of A-A section in Fig. 1.
Fig. 3 is the enlarged diagram shown in H position in Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As Fig. 1, Fig. 2, shown in Fig. 3, described Water seal butterfly valve, comprise: the valve body being provided with entrance point and outlet end, it is characterized in that: in the valve body 1 between entrance point and outlet end, expansion bearing has valve shaft 2, on the axle body of valve shaft 2, parallel interval is symmetrically installed with the first butterfly plate 3 and the second butterfly plate 4, first butterfly plate 3 to be contacted with valve body 1 by the first seal ring 5 and seals, second butterfly plate 4 to be contacted with valve body 1 by the second seal ring 6 and seals, valve shaft 2 drives rotation by motor 7, synchronous drive first butterfly plate 3 and the second butterfly plate 4 are opened simultaneously or cut off valve body 1, when valve shaft 2 drives the first butterfly plate 3 and the second butterfly plate 4 to cut off valve body 1 simultaneously, first butterfly plate 3, second butterfly plate 4, first seal ring 5, second seal ring 6 and valve body 1 form sealing valve pocket 8 jointly, valve body 1 offers and seals intake-outlet that valve pocket 8 is connected and be vented water supplement port, after sealing valve pocket 8 is filled water by the intake-outlet by valve body 1, sealing valve pocket 8 pairs of valve bodies 1 form water seal and cut off, valve body 1 inwall of entrance point is arranged with the first flushing endless tube 9 that a circle offers some spouts, first spout rinsing endless tube 9 aims at the first seal ring 5 with its homonymy, valve body 1 inwall of outlet end is arranged with a circle and offers the spout aligning of the second flushing endless tube 10, second flushing endless tube 10 of some spouts and the second seal ring 5 of its homonymy, in the present embodiment, valve body 1 by intake-outlet simultaneously with the water pipe 12 being provided with water supply valve 11, and the waste pipe 14 being provided with drain valve 13 is connected, with the outlet pipe 16 being provided with outlet valve 15 while that valve body 1 passing through to be vented water supplement port, and the water-adding pipe 18 being provided with water-feeding valve 17 is connected, can control better like this to seal the water injection rate in valve pocket 8, simple through structure, easy to operate, in the present embodiment, first flushing endless tube 9 and second rinses endless tube 10 and is connected with the cleaning hose 20 being provided with flushing valve 19 respectively, the first flushing endless tube 9 and second can be controlled so better and rinse the flushing of endless tube 10 to the first seal ring 5 and the second seal ring 6, structure is simple, easy to operate,
Working principle of the present invention is as follows:
Under original state, the first butterfly plate 3 in Water seal butterfly valve and the second butterfly plate 4 are in open mode, when the first butterfly plate 3 and the second butterfly plate 4 need be made to cut off valve body 1, first valve shaft 2 is driven to rotate by motor 7, valve shaft 2 drives the first butterfly plate 3 and the second butterfly plate 4 to turn to and cuts off valve body 1, turn in the process cutting off valve body 1 at the first butterfly plate 3 and the second butterfly plate 4, open flushing valve 19 simultaneously, make sparge water pour the first flushing endless tube 9 and second respectively by cleaning hose 20 and rinse endless tube 10, the sparge water pouring the first flushing endless tube 9 can spray to the first seal ring 5 by its spout, first seal ring 5 is rinsed, and the sparge water pouring the second flushing endless tube 10 can spray to the second seal ring 6 by its spout, second seal ring 6 is rinsed, valve body 1 is cut off when valve shaft 2 drives the first butterfly plate 3 and the second butterfly plate 4 to turn to, when making the first butterfly plate 3, second butterfly plate 4, first seal ring 5, second seal ring 6 and valve body 1 jointly form sealing valve pocket 8, closing flushing valve 19 again, stop the flushing to the first seal ring 5 and the second seal ring 6, the impurity such as tar due to attachment on the first seal ring 5 and the second seal ring 6 is rinsed water and rinses well, and the sealing effect like this when the first seal ring 5 and the second seal ring 6 pairs of valve bodies 1 is better, then water supply valve 11 and outlet valve 15 is opened again, water is injected sealing valve pocket 8 from the intake-outlet of valve body 1, the process of sealing valve pocket 8 is injected at water, air in sealing valve pocket 8 can discharge sealing valve pocket 8 by outlet pipe 16, after filling water in sealing valve pocket 8, close outlet valve 15 again, and then open water-feeding valve 17, by water-feeding valve 17 and water-adding pipe 18 by the water management in sealing valve pocket 8 at designated water level, and then close water supply valve 11, now water-filled sealing valve pocket 8 pairs of valve bodies 1 form water seal cut-out, such first butterfly plate 3, water-filled sealing valve pocket 8 and the second butterfly plate 4 just define three-layer sealed to valve body 1, good sealing effect, when the first butterfly plate 3 and the second butterfly plate 4 need be made to open valve body 1, first close water-feeding valve 17, and open drain valve 13 simultaneously, make the water sealed in valve pocket 8 can discharge sealing valve pocket 8 by waste pipe 14, and then open outlet valve 15, make the pressure in sealing valve pocket 8 consistent with barometric pressure, when the water in sealing valve pocket 8 drains only, close drain valve 13 and outlet valve 15 again, then electronic 7 are made to drive valve shaft 2 to rotate again, valve shaft 2 drives the first butterfly plate 3 and the second butterfly plate 4 to turn to and opens valve body 1, pass through aforesaid operations, namely opening and rupturing operation valve body is completed.Advantage of the present invention is: not only good sealing effect, and can clear up in time impurity such as the tar on seal ring, extends the working life of seal ring, reduces enterprise's production and application cost, substantially increase production and application Security.
Claims (3)
1. Water seal butterfly valve, comprise: the valve body being provided with entrance point and outlet end, it is characterized in that: in the valve body between entrance point and outlet end, expansion bearing has valve shaft, on the axle body of valve shaft, parallel interval is provided with a pair butterfly plate, two pieces of butterfly plates to contact with valve body respectively by seal ring and seal, valve shaft is by motor-driven rotation, synchronous drive two pieces of butterfly plates are opened simultaneously or cut off valve body, when valve shaft drives two pieces of butterfly plates to cut off valve body simultaneously, two pieces of butterfly plates, seal ring on two pieces of butterfly plates and valve body form sealing valve pocket jointly, valve body offers and seals intake-outlet that valve pocket is connected and be vented water supplement port, after sealing valve pocket is filled water by the intake-outlet by valve body, sealing valve pocket forms water seal to valve body and cuts off, the valve interior wall of entrance point and outlet end is arranged with the flushing endless tube that a circle offers some spouts respectively, and the spout that often circle rinses on endless tube aims at the seal ring with its homonymy respectively.
2. Water seal butterfly valve according to claim 1, it is characterized in that: valve body is connected with the water pipe being provided with water supply valve and the waste pipe that is provided with drain valve by intake-outlet simultaneously, valve body is connected with the outlet pipe being provided with outlet valve and the water-adding pipe that is provided with water-feeding valve by exhaust water supplement port simultaneously.
3. Water seal butterfly valve according to claim 1, is characterized in that: rinse endless tube and be connected with the cleaning hose being provided with flushing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699930.0A CN104500761A (en) | 2014-11-28 | 2014-11-28 | Water-sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699930.0A CN104500761A (en) | 2014-11-28 | 2014-11-28 | Water-sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500761A true CN104500761A (en) | 2015-04-08 |
Family
ID=52942193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410699930.0A Pending CN104500761A (en) | 2014-11-28 | 2014-11-28 | Water-sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104500761A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677892A (en) * | 2020-05-29 | 2020-09-18 | 江苏浩博塑业有限公司 | Hysteresis drive formula blast gate |
| CN115875462A (en) * | 2023-01-04 | 2023-03-31 | 盐城宝泽电力石化机械制造有限公司 | Baffle door with sealing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000422A (en) * | 1990-06-29 | 1991-03-19 | Salem Industries, Inc. | Incinerator valve |
| CN2895914Y (en) * | 2006-03-14 | 2007-05-02 | 湖北锦华阀门制造有限公司 | Butterfly type two-door water sealing valve |
| CN201155574Y (en) * | 2007-12-03 | 2008-11-26 | 江苏神通阀门股份有限公司 | Coal gas butterfly valve |
| CN201535361U (en) * | 2009-07-10 | 2010-07-28 | 上海华通阀门有限公司 | Double-seat water seal butterfly valve |
| CN202017779U (en) * | 2011-03-18 | 2011-10-26 | 厦门帮众科技有限公司 | Mechanical seal structure of stop valve |
| CN202140629U (en) * | 2011-07-22 | 2012-02-08 | 莱芜钢铁集团有限公司 | Cleaning device for tiny drag slow shut check valve |
| CN204372197U (en) * | 2014-11-28 | 2015-06-03 | 江苏省鑫通阀门制造有限公司 | Water seal butterfly valve |
-
2014
- 2014-11-28 CN CN201410699930.0A patent/CN104500761A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5000422A (en) * | 1990-06-29 | 1991-03-19 | Salem Industries, Inc. | Incinerator valve |
| CN2895914Y (en) * | 2006-03-14 | 2007-05-02 | 湖北锦华阀门制造有限公司 | Butterfly type two-door water sealing valve |
| CN201155574Y (en) * | 2007-12-03 | 2008-11-26 | 江苏神通阀门股份有限公司 | Coal gas butterfly valve |
| CN201535361U (en) * | 2009-07-10 | 2010-07-28 | 上海华通阀门有限公司 | Double-seat water seal butterfly valve |
| CN202017779U (en) * | 2011-03-18 | 2011-10-26 | 厦门帮众科技有限公司 | Mechanical seal structure of stop valve |
| CN202140629U (en) * | 2011-07-22 | 2012-02-08 | 莱芜钢铁集团有限公司 | Cleaning device for tiny drag slow shut check valve |
| CN204372197U (en) * | 2014-11-28 | 2015-06-03 | 江苏省鑫通阀门制造有限公司 | Water seal butterfly valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677892A (en) * | 2020-05-29 | 2020-09-18 | 江苏浩博塑业有限公司 | Hysteresis drive formula blast gate |
| CN115875462A (en) * | 2023-01-04 | 2023-03-31 | 盐城宝泽电力石化机械制造有限公司 | Baffle door with sealing device |
| CN115875462B (en) * | 2023-01-04 | 2023-10-10 | 盐城宝泽电力石化机械制造有限公司 | Baffle door with sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |