CN102278487A - Dual-seal butterfly valve with double valve plates - Google Patents
Dual-seal butterfly valve with double valve plates Download PDFInfo
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- CN102278487A CN102278487A CN2011101818894A CN201110181889A CN102278487A CN 102278487 A CN102278487 A CN 102278487A CN 2011101818894 A CN2011101818894 A CN 2011101818894A CN 201110181889 A CN201110181889 A CN 201110181889A CN 102278487 A CN102278487 A CN 102278487A
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- valve
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- seal ring
- rubber seal
- plates
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Abstract
The invention provides a dual-seal butterfly valve with double valve plates. The dual-seal butterfly valve comprises a valve body, a valve rod and a valve seat, wherein the valve body is internally provided with a rubber sealing ring in which two valve plates are installed; the whole thickness of the valve plates is less than the thickness of the rubber sealing ring; the shape of the valve plates is matched with that of the inner cavity of the rubber sealing ring; the upper part of each valve plate is connected with a valve rod which is connected to a driving mechanism through the rubber sealing ring and the upper part of the valve body; the two valve plates are arranged in parallel and a certain space is reserved between the two valve plates; the upper part and low part of a space between the two valve plates are respectively provided with a upper connector and a lower connector which are used for connecting both valve plates into a whole; the valve rod is connected in the upper connector. According to the invention, the butterfly valve is of double-valve-plate structure, secondary seal can be implemented and the seal capability of the butterfly valve can be doubled.
Description
Technical field
The present invention relates to the technical field of valve, particularly relate to a kind of bivalve plate double seals butterfly valve.
Background technique
Butterfly valve is meant that closure member (flap or 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.The butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the purpose that opens and closes or regulate.Normally less than 90 °, butterfly valve and butterfly bar itself do not have self-lock ability to the butterfly valve standard-sized sheet to complete shut-down, for the location of butterfly plate, install worm speed reducer additional on valve rod.Adopt worm speed reducer, not only can make butterfly plate have self-lock ability, butterfly plate is stopped on the arbitrary position, can also improve the operating characteristics of valve.
Existing reed valve all is single valve plate, edge by valve plate combines the realization sealing with Sealing, its sealability is relatively poor, its seal element has plenty of the seal ring that is installed on the valve plate in addition, has plenty of the seal ring that is embedded in valve interior surface, its seal element mostly is circle or ring in a word, in the rotation of valve plate, to its friction with gnaw and cut comparison severity, often seal ring occurs or ring comes off, often run that to leak all be to begin from here.
Summary of the invention
To the objective of the invention is in order addressing the above problem, bivalve plate double seals butterfly valve to be provided.
Technological scheme of the present invention is: a kind of bivalve plate double seals butterfly valve, contain valve body, valve rod, valve seat, in the described valve body rubber seal ring is installed, valve plate is installed in the rubber seal ring, the integral thickness of valve plate is less than the thickness of this rubber seal ring, valve plate shape and rubber seal ring cavity shape coupling, valve plate top is connected with valve rod, valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate, and two valve plates be arranged in parallel, at regular intervals, be respectively equipped with in the upper and lower between two valve plates, following connecting body connects as one two valve plates, and described valve rod is connected in the connecting body on top.
The inner chamber of described rubber seal ring is a sphere, and this sphere centre face is by the center line of valve rod; Described valve plate be shaped as circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
Be connected by pin between the last connecting body of described valve plate and the valve rod, be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
Be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
Two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
Described driving mechanism is the worm and gear operating device.
Be provided with several between described two valve plates and strengthen a muscle, be distributed between two valve plates.
It is cylindrical or for flat plate shape that muscle is propped up in described reinforcement.
Beneficial effect of the present invention
This butterfly valve adopts bivalve plate structure, can form secondary seal, the sealability of lifting butterfly valve that can be at double.
The rubber seal ring of this butterfly valve is sleeved in the valve body, valve plate is positioned at its inside, utilize the internal surface of valve plate edge and this rubber seal ring to compress the realization sealing, this rubber seal ring is the integral type seal ring, the whole valve plate outside that is sleeved on, its wear resistance and intensity improve greatly, the obscission of Sealing can not occur, the working life of having improved whole butterfly valve.
Adopt ball face sealing between the valve plate of this butterfly valve and the rubber seal ring, can further improve sealability, and can at utmost reduce the friction breakage of valve plate, thereby improved its working life sealing surface.
Strengthen the intensity that a muscle can improve two valve plates by being provided with, particularly under the bigger situation of valve plate size, can avoid valve plate owing to the pressure of fluid is out of shape.
Description of drawings
Fig. 1 is the structural representation of facing of this bivalve plate double seals butterfly valve;
Fig. 2 be Fig. 1 along stem shaft to cross-sectional view;
Fig. 3 is the A-A cross-sectional view of Fig. 1;
Fig. 4 is the main TV structure schematic representation of valve plate;
Fig. 5 is the plan structure schematic representation of Fig. 4;
Fig. 6 is the B-B cross-sectional view of Fig. 4;
Fig. 7 is the main TV structure schematic representation of valve plate;
Fig. 8 is the plan structure schematic representation of Fig. 7;
Fig. 9 is the B-B cross-sectional view of Fig. 7;
Figure 10 is the main TV structure schematic representation of valve plate;
Figure 11 is the plan structure schematic representation of Figure 10;
Figure 12 is the B-B cross-sectional view of Figure 10;
Figure 13 is the main TV structure schematic representation of valve plate;
Figure 14 is the plan structure schematic representation of Figure 13;
Figure 15 is the B-B cross-sectional view of Figure 13;
Figure 16 is the main TV structure schematic representation of valve plate;
Figure 17 is the plan structure schematic representation of Figure 16;
Figure 18 is the B-B cross-sectional view of Figure 16;
Figure 19 is the main TV structure schematic representation of rubber seal ring;
Figure 20 is the C-C cross-sectional view of Fig. 7.
Embodiment
1. valve bodies among the figure, 2. valve rod, 3.. rubber seal ring, 4 valve plates, 5. driving mechanism, 6. apical axis, 7. pin, 8. connecting body, 4-4. pin hole, 4-5. strengthen a muscle under stuffing box gland, 3-1. inner ring surface, 3-2. outer ring surface, 3-3. flange, 4-1. valve plate body, the last connecting body of 4-2., the 4-3..
Embodiment one: referring to Fig. 1-Fig. 6, Figure 19, Figure 20, a kind of bivalve plate double seals butterfly valve among the figure, contain valve body, valve rod, valve seat, in the described valve body rubber seal ring is installed, valve plate is installed in the rubber seal ring, the integral thickness of valve plate is less than the thickness of this rubber seal ring, valve plate shape and rubber seal ring cavity shape coupling, valve plate top is connected with valve rod, valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate, and two valve plates be arranged in parallel, at regular intervals, be respectively equipped with in the upper and lower between two valve plates, following connecting body connects as one two valve plates, and described valve rod is connected in the connecting body on top.
The inner chamber of described rubber seal ring is a sphere, and this sphere centre face is by the center line of valve rod; Described valve plate be shaped as circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
Be connected by pin between the last connecting body of described valve plate and the valve rod, be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
Be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
Two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
Described driving mechanism is the worm and gear operating device.
Embodiment two: referring to Fig. 7-Fig. 9, embodiment two and embodiment one are basic identical, and something in common does not repeat, and difference is, are provided with several between described two valve plates described in the embodiment two and strengthen a muscle, are distributed between two valve plates; It is cylindrical that muscle is propped up in described reinforcement.
Embodiment three: referring to Figure 10-Figure 12, embodiment three and embodiment two are basic identical, and something in common does not repeat, and difference is that it is two circles that muscle is propped up in the reinforcement described in the embodiment three.
Embodiment four: referring to Figure 13-Figure 15, embodiment four and embodiment one are basic identical, and something in common does not repeat, and difference is, are provided with several between described two valve plates described in the embodiment four and strengthen a muscle, are distributed between two valve plates; It is flat plate shape that muscle is propped up in described reinforcement.
Embodiment five: referring to Figure 16-Figure 18, embodiment four and embodiment three are basic identical, and something in common does not repeat, and difference is that it is two circles that muscle is propped up in the reinforcement described in the embodiment five.
Operating device in the foregoing description can also be other operating devices such as man-operated mechanism, motor drive mechanism, all belongs to the protection domain of this patent, does not describe in detail one by one at this.
Claims (8)
1. bivalve plate double seals butterfly valve, contain valve body, valve rod, valve seat, it is characterized in that: in the described valve body rubber seal ring is installed, valve plate is installed in the rubber seal ring, the integral thickness of valve plate is less than the thickness of this rubber seal ring, valve plate shape and rubber seal ring cavity shape coupling, valve plate top is connected with valve rod, valve rod passes rubber seal ring and valve body top is connected to driving mechanism, and described valve plate is the bivalve plate, and two valve plates be arranged in parallel, at regular intervals, be respectively equipped with in the upper and lower between two valve plates, following connecting body connects as one two valve plates, and described valve rod is connected in the connecting body on top.
2. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: the inner chamber of described rubber seal ring is a sphere, and this sphere centre face is by the center line of valve rod; Described valve plate be shaped as circle with above-mentioned sphere coupling, the edge of valve plate is the sphere edge, the sphere of the inner chamber of this sphere edge and rubber seal ring is on the same sphere.
3. bivalve plate double seals butterfly valve according to claim 1, it is characterized in that: be connected by pin between the last connecting body of described valve plate and the valve rod, be inserted with down apical axis in the following connecting body of described valve plate, the outer end of this time apical axis passes rubber seal ring and is installed in the valve body.
4. bivalve plate double seals butterfly valve according to claim 3 is characterized in that: be provided with stuffing box gland between described valve rod and the valve seat, be provided with stuffing box gland between described apical axis down and the valve body.
5. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: two edges of described rubber seal ring outer ring surface are respectively equipped with flange, and these two flange are buckled in the both sides of valve body respectively.
6. bivalve plate double seals butterfly valve according to claim 1 is characterized in that: described driving mechanism is the worm and gear operating device.
7. according to the described bivalve plate of the arbitrary claim of claim 1-6 double seals butterfly valve, it is characterized in that: be provided with several between described two valve plates and strengthen a muscle, be distributed between two valve plates.
8. bivalve plate double seals butterfly valve according to claim 7 is characterized in that: it is cylindrical or for flat plate shape that muscle is propped up in described reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101818894A CN102278487A (en) | 2011-06-22 | 2011-06-30 | Dual-seal butterfly valve with double valve plates |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110168216.5 | 2011-06-22 | ||
| CN201110168216 | 2011-06-22 | ||
| CN2011101818894A CN102278487A (en) | 2011-06-22 | 2011-06-30 | Dual-seal butterfly valve with double valve plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278487A true CN102278487A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101818894A Pending CN102278487A (en) | 2011-06-22 | 2011-06-30 | Dual-seal butterfly valve with double valve plates |
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| Country | Link |
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| CN (1) | CN102278487A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277527A (en) * | 2013-05-09 | 2013-09-04 | 浙江宝龙阀门制造有限公司 | Double-sealing-pair metal sealing butterfly valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2384052Y (en) * | 1999-06-10 | 2000-06-21 | 石家庄阀门一厂股份有限公司 | Clamped bidirectional sealed butterfly valve |
| CN2688994Y (en) * | 2004-04-22 | 2005-03-30 | 杨清强 | Two-way non-loss hard sealed butterfly valves |
| DE202006012553U1 (en) * | 2006-08-04 | 2006-10-26 | Kieselmann Gmbh | Disk valve e.g. leakage valve, has closing unit with annular groove opened to sealing ring at its periphery, where leakage channels leak from lower pivot underneath sealing ring and flow into two separate connection lines |
| CN2881241Y (en) * | 2005-12-16 | 2007-03-21 | 章祖翼 | Biecentric bidirection sealing butterfly valve |
| CN201318447Y (en) * | 2008-11-15 | 2009-09-30 | 大连船用阀门有限公司 | Large-caliber double eccentric butterfly sea valve |
| CN202118276U (en) * | 2011-06-22 | 2012-01-18 | 付永强 | Double-sealing butterfly valve with double valve plates |
-
2011
- 2011-06-30 CN CN2011101818894A patent/CN102278487A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2384052Y (en) * | 1999-06-10 | 2000-06-21 | 石家庄阀门一厂股份有限公司 | Clamped bidirectional sealed butterfly valve |
| CN2688994Y (en) * | 2004-04-22 | 2005-03-30 | 杨清强 | Two-way non-loss hard sealed butterfly valves |
| CN2881241Y (en) * | 2005-12-16 | 2007-03-21 | 章祖翼 | Biecentric bidirection sealing butterfly valve |
| DE202006012553U1 (en) * | 2006-08-04 | 2006-10-26 | Kieselmann Gmbh | Disk valve e.g. leakage valve, has closing unit with annular groove opened to sealing ring at its periphery, where leakage channels leak from lower pivot underneath sealing ring and flow into two separate connection lines |
| CN201318447Y (en) * | 2008-11-15 | 2009-09-30 | 大连船用阀门有限公司 | Large-caliber double eccentric butterfly sea valve |
| CN202118276U (en) * | 2011-06-22 | 2012-01-18 | 付永强 | Double-sealing butterfly valve with double valve plates |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277527A (en) * | 2013-05-09 | 2013-09-04 | 浙江宝龙阀门制造有限公司 | Double-sealing-pair metal sealing butterfly valve |
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Application publication date: 20111214 |