CN203335887U - Bi-direction sealing triple-eccentric butterfly valve - Google Patents
Bi-direction sealing triple-eccentric butterfly valve Download PDFInfo
- Publication number
- CN203335887U CN203335887U CN2013203945028U CN201320394502U CN203335887U CN 203335887 U CN203335887 U CN 203335887U CN 2013203945028 U CN2013203945028 U CN 2013203945028U CN 201320394502 U CN201320394502 U CN 201320394502U CN 203335887 U CN203335887 U CN 203335887U
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- valve seat
- butterfly plate
- valve body
- seat
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Abstract
The utility model provides a bi-direction sealing triple-eccentric butterfly valve which comprises a valve body, a valve base, a valve rod, a butterfly plate and an actuator. A butterfly plate sealing face is arranged on the butterfly plate, a valve base sealing face matched with the butterfly plate sealing face is arranged on the valve base, and the butterfly plate sealing face and the valve base sealing face are both conical. The valve base is a floating valve base, a valve base gland is arranged at one end, far away from the butterfly plate, of the valve base, and the valve base gland is fixedly connected with the valve body through a screw. A gap is formed between limiting edges arranged at the other end of the valve base and the valve body, an annular groove is formed in the position, close to the end face of the valve base gland, of the valve base, a pre-tightening spring is installed in the annular groove, one end of the spring is connected with the valve base in an abutted mode, and the other end of the spring is connected with the valve base gland in an abutted mode. By the adoption of the technical scheme, the bi-direction sealing of the triple-eccentric butterfly valve is reliable.
Description
Technical field
The utility model belongs to the butterfly valve field, is specifically related to a kind of two way sealed three eccentric butterfly valve.
Background technique
Butterfly valve refers to the butterfly plate that closure member is disc-shape, and butterfly plate rotates to reach a kind of valve of opening or closing around the axis of valve rod, and on pipeline, main rising cut off and throttling action.Along with the development of industrial technology, common butterfly valve can not meet industrial demand, has successively experienced the differentiation of concentric, single bias, two bias and three bias for meeting various working condition requirements, butterfly valve.
Three bias of three eccentric butterfly valve refer to: the gyration center of butterfly plate is radially existing throw of eccentric, the butterfly plate conical surface axially and valve channel axis at an angle (be angle bias) at the gyration center that axially has throw of eccentric, butterfly plate with respect to the butterfly plate center with respect to the butterfly plate center.Traditional three eccentric butterfly valve comprises valve body, valve rod, butterfly plate and driven unit, and butterfly plate is provided with the butterfly plate sealing surface, and described valve body is provided with valve body sealing surface, and butterfly plate sealing surface and valve body sealing surface are sealed and matched.Butterfly plate sealing surface, valve body sealing surface all are the setting of conical surface shape.But this traditional three eccentric butterfly valve is needing, under the operating mode of two way sealed, to be difficult to reach seal request.
The model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides forward, the reverse two way sealed three eccentric butterfly valve that all can realize reliable sealing.
The utility model is achieved by the following technical solution:
A kind of two way sealed three eccentric butterfly valve, comprise valve body, valve seat, valve rod, butterfly plate and final controlling element; Valve rod is through valve body, by upper and lower two bearings on valve body; Be provided with valve seat in valve body, be provided with the butterfly plate matched with valve seat on valve rod; Described valve rod is connected with final controlling element, by actuator driven; The lower end of described valve body is fixedly installed end cap, and upper end is fixedly installed support, and described final controlling element is rack-mount;
It is characterized in that, be provided with the butterfly plate sealing surface on described butterfly plate, be provided with the sealing surface of seat coordinated with the butterfly plate sealing surface on described valve seat; Described butterfly plate sealing surface and sealing surface of seat are all tapered; Described valve seat is a floating valve seat, and described valve seat is provided with the valve seat gland away from an end of butterfly plate, and described valve seat gland is fixedly connected with by screw with valve body; Gapped between the position-limited edge edge arranged on the other end of valve seat and valve body; Described valve seat is provided with an annular groove near on the end face of valve seat gland, the spring of pretension is installed, an end of described spring and valve seat butt, the other end and valve seat gland butt in described annular groove.
By adopting technique scheme, when the mobile forward of medium is forward, butterfly plate also can be subject to the power of forward and produce resiliently deformable along direction, thereby realizes sealing, when flowing when reverse of medium, because valve seat is floating valve seat, spring between valve seat and valve seat gland makes between valve seat and butterfly plate a pretightening force, the effect of elastic element is exactly in the situation that guarantee that pressure medium is also little, realize that valve is pre-sealed, then pressure is become heavy, utilize pressure medium itself to promote valve seat and press butterfly plate, in the time of so exactly in Applicable scope, pressure medium more greatly more can seal, pressure medium forces valve seat to press to butterfly plate, even butterfly plate and valve rod have the micro-elastic distortion under the effect of medium power, valve seat can move a certain distance the seal pressure that guarantees valve seat and butterfly plate under spring action, thereby realize sealing, make two way sealed all reliable.
Further, be disposed radially double the first seal ring between described valve seat and valve body.
So arrange, can prevent that medium from revealing between valve seat and valve body, avoid the pressure that promotes valve seat to form.
Further, be disposed radially double the second seal ring between described valve seat gland and valve body.
So arrange, can prevent that medium from revealing between valve seat gland and valve body, avoid the pressure that promotes valve seat to form.
Further, be provided with on described valve body for valve rod and extend the valve rod hole of valve body, be provided with Packing seat and filler in described valve rod hole, described filler surrounds and is pressed on described valve rod on every side for the sealing between valve rod and valve body; Be provided with Gland on described filler, described Gland and described valve rod hole are slidably matched.
So arrange, can prevent that medium from revealing between valve rod and valve body.
Further, described final controlling element is a manual final controlling element.
So arrange, can make the operation of valve more simple, cost is lower.
Below in conjunction with accompanying drawing, the utility model is further described.
The accompanying drawing explanation
The structural drawing that Fig. 1 is two way sealed three eccentric butterfly valve described in the utility model;
The valve seat positional structure method figure that Fig. 2 is Fig. 1;
In figure, the implication of each label is as follows:
Valve body 1, valve seat 2, valve rod 3, butterfly plate 4, final controlling element 5, valve seat gland 6, spring 7, position-limited edge along 8, bearing 9, end cap 10, support 11, the first seal ring 12, the second seal ring 13, Packing seat 14, filler 15, Gland 16.
Embodiment
As shown in Figure 1, 2, the utility model provides a kind of two way sealed three eccentric butterfly valve, comprises valve body 1, valve seat 2, valve rod 3, butterfly plate 4 and final controlling element 5; Valve rod 3, through valve body 1, is supported on valve body 1 by upper and lower two bearings 9; Be provided with valve seat 2 in valve body 1, be provided with the butterfly plate 4 matched with valve seat 2 on valve rod 3; Described valve rod 3 is connected with final controlling element 5, by final controlling element 5, is driven; The lower end of described valve body 1 is fixedly installed end cap 10, and upper end is fixedly installed support 11, and described final controlling element 5 is arranged on support 11.Final controlling element described in the present embodiment 5 is a manual final controlling element.
Be provided with the butterfly plate sealing surface on described butterfly plate 4, on described valve seat 2, be provided with the sealing surface of seat coordinated with the butterfly plate sealing surface; Described butterfly plate sealing surface and sealing surface of seat are all tapered; Described valve seat 2 is a floating valve seat, and described valve seat 2 is provided with valve seat gland 6 away from an end of butterfly plate 4, and described valve seat gland 6 is fixedly connected with by screw with valve body 1; The position-limited edge arranged on the other end of valve seat 2 and valve body 1 is along gapped between 8; Described valve seat 2 is provided with an annular groove near on the end face of valve seat gland 6, the spring 7 of pretension is installed, an end of described spring 7 and valve seat 2 butts, the other end and valve seat gland 6 butts in described annular groove.
Be disposed radially double the first seal ring 12 between described valve seat 2 and valve body 1.Be disposed radially double the second seal ring 13 between described valve seat gland 6 and valve body 1.
Be provided with on described valve body 1 for valve rod 3 and extend the valve rod hole of valve body 1, be provided with Packing seat 14 and filler 15 in described valve rod hole, described filler 15 surrounds and is pressed on described valve rod 3 on every side for the sealing of 1 of valve rod 3 and valve body; Be provided with Gland 16 on described filler 15, described Gland 16 is slidably matched with described valve rod hole.
The utility model not only is confined to above-mentioned embodiment; persons skilled in the art are according to the disclosed content of the utility model; can adopt other multiple embodiment to implement the utility model; therefore; every employing project organization of the present utility model and thinking; do some simple designs that change or change, all fall into the scope of the utility model protection.
Claims (5)
1. a two way sealed three eccentric butterfly valve, comprise valve body (1), valve seat (2), valve rod (3), butterfly plate (4) and final controlling element (5); Valve rod (3), through valve body (1), is supported on valve body (1) by upper and lower two bearings (9); Be provided with valve seat (2) in valve body (1), be provided with the butterfly plate (4) matched with valve seat (2) on valve rod (3); Described valve rod (3) is connected with final controlling element (5), by final controlling element (5), is driven; The lower end of described valve body (1) is fixedly installed end cap (10), and upper end is fixedly installed support (11), and described final controlling element (5) is arranged on support (11);
It is characterized in that, described butterfly plate is provided with the butterfly plate sealing surface on (4), and described valve seat is provided with the sealing surface of seat coordinated with the butterfly plate sealing surface on (2); Described butterfly plate sealing surface and sealing surface of seat are all tapered; Described valve seat (2) is a floating valve seat, and described valve seat (2) is provided with valve seat gland (6) away from an end of butterfly plate (4), and described valve seat gland (6) is fixedly connected with by screw with valve body (1); The upper position-limited edge arranged of the other end of valve seat (2) and valve body (1) is along gapped between (8); Described valve seat (2) is provided with an annular groove near on the end face of valve seat gland (6), the spring (7) of pretension is installed, an end of described spring (7) and valve seat (2) butt, the other end and valve seat gland (6) butt in described annular groove.
2. two way sealed three eccentric butterfly valve according to claim 1, is characterized in that, between described valve seat (2) and valve body (1), has been disposed radially double the first seal ring (12).
3. two way sealed three eccentric butterfly valve according to claim 1, is characterized in that, between described valve seat gland (6) and valve body (1), has been disposed radially double the second seal ring (13).
4. two way sealed three eccentric butterfly valve according to claim 1, it is characterized in that, be provided with on described valve body (1) for valve rod (3) and extend the valve rod hole of valve body (1), be provided with Packing seat (14) and filler (15) in described valve rod hole, described filler (15) surround and be pressed on described valve rod (3) around for the sealing between valve rod (3) and valve body (1); Be provided with Gland (16) on described filler (15), described Gland (16) is slidably matched with described valve rod hole.
5. two way sealed three eccentric butterfly valve according to claim 1, is characterized in that, described final controlling element (5) is a manual final controlling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203945028U CN203335887U (en) | 2013-07-02 | 2013-07-02 | Bi-direction sealing triple-eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203945028U CN203335887U (en) | 2013-07-02 | 2013-07-02 | Bi-direction sealing triple-eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335887U true CN203335887U (en) | 2013-12-11 |
Family
ID=49704563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203945028U Expired - Fee Related CN203335887U (en) | 2013-07-02 | 2013-07-02 | Bi-direction sealing triple-eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335887U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221777A (en) * | 2015-11-02 | 2016-01-06 | 河南泉舜流体控制科技有限公司 | Bidirectional metal sealing spiral valve |
| CN108716551A (en) * | 2018-07-13 | 2018-10-30 | 辽阳给排水设备阀门有限公司 | A kind of double eccentric flexible sealing low water drag butterfly valves |
| CN114526341A (en) * | 2022-01-21 | 2022-05-24 | 中鸿阀门股份有限公司 | Double-sealing auxiliary single eccentric butterfly valve |
| CN115264087A (en) * | 2022-09-28 | 2022-11-01 | 江苏大田阀门制造有限公司 | Three-eccentric butterfly valve capable of being sealed in two directions |
-
2013
- 2013-07-02 CN CN2013203945028U patent/CN203335887U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221777A (en) * | 2015-11-02 | 2016-01-06 | 河南泉舜流体控制科技有限公司 | Bidirectional metal sealing spiral valve |
| CN108716551A (en) * | 2018-07-13 | 2018-10-30 | 辽阳给排水设备阀门有限公司 | A kind of double eccentric flexible sealing low water drag butterfly valves |
| CN114526341A (en) * | 2022-01-21 | 2022-05-24 | 中鸿阀门股份有限公司 | Double-sealing auxiliary single eccentric butterfly valve |
| CN114526341B (en) * | 2022-01-21 | 2024-05-28 | 中鸿阀门股份有限公司 | Double-sealing auxiliary single eccentric butterfly valve |
| CN115264087A (en) * | 2022-09-28 | 2022-11-01 | 江苏大田阀门制造有限公司 | Three-eccentric butterfly valve capable of being sealed in two directions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20170702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |