CN204164381U - A kind of bidirectional sealed butterfly valve - Google Patents
A kind of bidirectional sealed butterfly valve Download PDFInfo
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- CN204164381U CN204164381U CN201420553783.1U CN201420553783U CN204164381U CN 204164381 U CN204164381 U CN 204164381U CN 201420553783 U CN201420553783 U CN 201420553783U CN 204164381 U CN204164381 U CN 204164381U
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Abstract
A kind of bidirectional sealed butterfly valve of the utility model relates to valve technology field, for the shortcoming of traditional seal valve, this bidirectional sealed butterfly valve, be arranged on pipeline, no matter medium forward or reverse flow, conveniently can compensate valve seat, elastic packing, make whole pipeline more safe and reliable, comprise valve body, also comprise lower end cap, flashboard, hold-down grid, valve rod and turbine head, described lower end cap is arranged on the lower end surface of valve body, flashboard is fastenedly connected with valve rod in valve body, valve rod protrudes in the outside of Gland, and be connected with turbine head above through support, Gland is connected with valve body by stud, support is connected with Gland by hex head bolt, turbine head is connected on support, filler is provided with inside Gland, be provided with spiral wound gasket between described lower end cap and valve body and split annulus, and being tightened together by hexagon socket head cap screw, the utility model product has double shield, and sealability is more reliable and more stable, energy saving.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of Bidirectioning sealed butterfly valve.
Background technique
Butterfly valve is Flap valve again, it is the simple modulating valve of a kind of structure, also the valve butterfly valve that can be used in the mode work of the switch control rule of low pressure pipeline medium refers to that closure member (flap or butterfly plate) is disk simultaneously, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.On pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.
Poor sealing performance on tradition butterfly valve overall performance and can not two way sealed, the rubber elastomer in butterfly valve in using continuously, can produce tear, wear and tear, aging, even obscission of boring a hole.And traditional hot vulcanization process is difficult to the needs adapting to field repair, special equipment to be adopted during reparation, consume a large amount of heat energy and electric energy, waste time and energy.
The hard seal butterfly valve produced both at home and abroad is at present butterfly plate one-way sealing formula; Then in use once there is medium reverse flow, inherently occur that medium reveals fault, medium then in necessary closing duct, whole valve is disassembled from pipeline and just can keep in repair, its maintenance trouble both difficulties, need the longer time during maintenance, and affect the normal operation of pipe-line system.
Model utility content
The purpose of this utility model is, for the shortcoming of traditional seal valve, provides a kind of bidirectional sealed butterfly valve, under being arranged on the state on pipeline, no matter medium forward or reverse flow, can conveniently compensate valve seat, elastic packing, make whole pipeline more safe and reliable.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is: a kind of bidirectional sealed butterfly valve, comprise valve body, it is characterized in that: also comprise lower end cap, flashboard, hold-down grid, valve rod and turbine head, described lower end cap is arranged on the lower end surface of valve body, flashboard is fastenedly connected with valve rod in valve body, valve rod protrudes in the outside of Gland, and be connected with turbine head above through support, Gland is connected with valve body by stud, support is connected with Gland by hex head bolt, turbine head is connected on support, filler is provided with inside Gland.
Be provided with spiral wound gasket between described lower end cap and valve body and split annulus, and being tightened together by hexagon socket head cap screw.
Be provided with seal ring between described flashboard and valve body, and tightened together by hexagon socket head cap screw, described flashboard is connected by bearing pin with between valve rod.
Be provided with lower lining and upper lining between described valve rod and valve body, described upper lining is provided with Packing seat, Packing seat is filler.
Described valve rod is connected with turbine head by key, and described turbine head is connected with support by hex head bolt, packing ring.
Compared with prior art, the beneficial effects of the utility model are: the utility model product is mainly used in the higher pipe-line system of valve seal requirement, favorable sealing property and can two way sealed.This product is along with the intellectuality of industrial system at present, precision is high, maximize, high parameter, the increasing of environmental protection dynamics, and be various industrialization to the pipe-line system of valve seal stability requirement be one of indispensable system, simultaneously butterfly valve is as one of maximum and the widest valve, bidirectional sealed butterfly valve incomparable performance characteristics and advantage, the use amount of user constantly will increase along with various improving constantly of medium parameter, again because this product is high-intelligentization and very practical new product, there is structure advanced person, good sealing effect, automaticity is high, precision is high, multiple functional, non-maintaining, safe and reliable, therefore market prospects are boundless.
Avoid and after the release of operating mode apparatus system, likely occur medium moment reverse flow when using common butterfly valve, make valve occur revealing, and bidirectional sealed butterfly valve makes its valve again utilize, double shield, sealability is more reliable and more stable, energy saving.
Accompanying drawing explanation
Fig. 1 is the utility model product embodiments perspective structure schematic diagram;
In the drawings,
1, lower end cap; 2, hexagon socket head cap screw; 3, spiral wound gasket; 4, annulus is split; 5, lower lining; 6, valve body; 7, seal ring; 8, flashboard; 10, bearing pin; 11, valve rod; 12, upper lining; 13, Packing seat; 14, filler; 15, hex head bolt; 16, nut; 17, packing ring; 18, Gland; 19, stud; 22, support; 25, key; 26, turbine head.
Embodiment
Composition graphs 1, for the example structure schematic diagram of a kind of bidirectional sealed butterfly valve of the utility model, described bidirectional sealed butterfly valve, comprise valve body 6, also comprise lower end cap 1, flashboard 8, hold-down grid 18, valve rod 11 and turbine head 26, described lower end cap 1 is arranged on the lower end surface of valve body 6, flashboard 8 is fastenedly connected with valve rod 11 in valve body 6, valve rod 11 protrudes the outside at Gland 18, and be connected with turbine head 26 above through support 22, Gland 18 is connected with valve body 6 by stud 19, support 22 is connected with Gland 18 by hex head bolt 15, turbine head 26 is connected on support 22, filler 14 is provided with inside Gland 18, be provided with spiral wound gasket 3 between described lower end cap 1 and valve body 6 and split annulus 4, and being tightened together by hexagon socket head cap screw 2, be provided with seal ring 7 between described flashboard 8 and valve body 6, and tightened together by hexagon socket head cap screw 2, described flashboard 8 is connected by bearing pin 10 with between valve rod 11, be provided with lower lining 5 and upper lining 12 between described valve rod 11 and valve body 6, described upper lining 12 is provided with Packing seat 13, Packing seat 13 is filler 14, described valve rod 11 is connected with turbine head 26 by key 25, and described turbine head 26 is connected with support 22 by hex head bolt 15, packing ring 17.
The working principle of bidirectional sealed butterfly valve: above-mentioned bidirectional sealed butterfly valve is primarily of pressure bearing system, composition such as combination opening/closing system, transmission system etc.; In pipe-line system, because the working condition of user's pipe-line system limits, require that medium is by effective guarantee of sealability during valve.
Chief technology point is:
A. sealing pair, bidirectional metal sheet is embedded in the design of butterfly plate;
B. the mode of butterfly plate active force and application mechanism;
C. the surface accuracy of sealing pair;
D. sealing pair village material hardness and toughness;
E. the designing and calculating of valve rod intensity and finite element analysis;
F. the heat treatment process of special material;
G. special process for machining.
Purposes: be mainly used in requiring in operating mode that is higher or that have two way sealed to need valve seal.
Technique:
A. major part adopts metallic material manufacture, has the advantage such as easy-formation, convenience;
B. the part that in butterfly plate combined mechanism, sealing group is different selects different processing technologys and precision according to the different matching method of function;
C. the calculating of valve rod mechanism and intensity etc.;
D. the calculating of butterfly plate structure and intensity;
E. the selecting and the calculating of seal pressure of sealing pair material;
F. the packaging technology equipment of combined mechanism.
Important technological parameters is as follows:
A. operating temperature is used :-2-350 DEG C;
B. working pressure (MPa) is used: 0.6-2.5;
C. inside nominal diameter (DN): 200-700mm;
D. Applicable media: the media such as water, sewage, oil product.
Simple change and the replacement of those ordinary skill in the art are all within protection domain of the present utility model.
Claims (1)
1. a bidirectional sealed butterfly valve, comprise valve body (6), it is characterized in that: also comprise lower end cap (1), flashboard (8), hold-down grid (18), valve rod (11) and turbine head (26), described lower end cap (1) is arranged on the lower end surface of valve body (6), flashboard (8) is fastenedly connected with valve rod (11) in valve body (6), valve rod (11) protrudes the outside in Gland (18), and be connected with turbine head (26) above through support (22), Gland (18) is connected with valve body (6) by stud (19), support (22) is connected with Gland (18) by hex head bolt (15), turbine head (26) is connected on support (22), Gland (18) inner side is provided with filler (14), be provided with spiral wound gasket (3) between described lower end cap (1) and valve body (6) and split annulus (4), and tightened together by hexagon socket head cap screw (2), seal ring (7) is provided with between described flashboard (8) and valve body (6), and tightened together by hexagon socket head cap screw (2), described flashboard (8) is connected by bearing pin (10) with between valve rod (11), lower lining (5) and upper lining (12) is provided with between described valve rod (11) and valve body (6), described upper lining (12) is provided with Packing seat (13), Packing seat (13) is upper is filler (14), described valve rod (11) is connected with turbine head (26) by key (25), described turbine head (26) is by hex head bolt (15), packing ring (17) is connected with support (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553783.1U CN204164381U (en) | 2014-09-25 | 2014-09-25 | A kind of bidirectional sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553783.1U CN204164381U (en) | 2014-09-25 | 2014-09-25 | A kind of bidirectional sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164381U true CN204164381U (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420553783.1U Active CN204164381U (en) | 2014-09-25 | 2014-09-25 | A kind of bidirectional sealed butterfly valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204164381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099168A (en) * | 2017-06-21 | 2018-12-28 | 上海弘盛特种阀门制造股份有限公司 | A kind of comb-tooth-type regulating butterfly valve |
-
2014
- 2014-09-25 CN CN201420553783.1U patent/CN204164381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099168A (en) * | 2017-06-21 | 2018-12-28 | 上海弘盛特种阀门制造股份有限公司 | A kind of comb-tooth-type regulating butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171115 Address after: Yongjia Jiangbei County of Wenzhou City, Zhejiang province 325100 Street Bridge Industrial Zone (Liangjing Group Co.) Patentee after: Zhejiang Liang Jing Valve Co., Ltd. Address before: Yongjia Oubei County of Wenzhou City, Zhejiang province 325100 Jane Bridge Industrial Zone Patentee before: Liangjing Group Co., Ltd. |