CN201875159U - Triple eccentric hard seal wear-resistant butterfly valve - Google Patents
Triple eccentric hard seal wear-resistant butterfly valve Download PDFInfo
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- CN201875159U CN201875159U CN2010205770734U CN201020577073U CN201875159U CN 201875159 U CN201875159 U CN 201875159U CN 2010205770734 U CN2010205770734 U CN 2010205770734U CN 201020577073 U CN201020577073 U CN 201020577073U CN 201875159 U CN201875159 U CN 201875159U
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- butterfly
- butterfly plate
- plate
- wear
- valve
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Abstract
The utility model discloses a triple eccentric hard seal wear-resistant butterfly valve, which comprises a valve body, a driving mechanism and a butterfly plate assembly, wherein the valve body is provided with an inner rotary wall, and the inner rotary wall is provided with a cone-shaped section; the driving mechanism is provided with a valve rod penetrating into the inner rotary wall of the valve body; the butterfly plate assembly is arranged on the valve rod and in the valve body and comprises a butterfly plate and a press plate; the butterfly is provided with an axial end surface, and the press plate is fixedly connected onto the axial end surface of the butterfly plate; the butterfly plate assembly further includes a hard seal ring, which is fixedly connected between the butterfly plate and the press plate and corresponds to the cone-shaped section; and the joint of the butterfly plate with the seal ring is a flat surface. The butterfly valve is excellent in wear resistance, thereby effectively prolonging the service life thereof.
Description
Technical field
The utility model relates to a kind of butterfly valve, particularly is applicable to the wear-resisting butterfly valve of a kind of three eccentric hard sealings of blast furnace slag flushing system in the technical field of blast furnace ironmaking.
Background technique
At present, butterfly valve is as a kind of parts that are used to realize pipe-line system break-make and flow control, be used widely in various fields such as oil, chemical industry, metallurgy, water power, in the existing reed valve technology, its seal form mostly is soft sealed picture or multi-level sealed picture assembly.
As Chinese patent application CN200720036089.2, the model utility that name is called " three eccentric multi-level seal butterfly valves " has disclosed a kind of multi-level sealed picture assembly, it is formed by stacking by stainless steel sealed picture, asbestos slate sealed picture, has the double effects of soft seal and hard sealing; Though above-mentioned sealed picture has preferable sealability, yet in the blast furnace slag flushing system of technical field of blast furnace ironmaking, owing to there is impurity such as slag, if use above-mentioned soft sealed picture or multi-level sealed picture assembly, the front that its soft seal band can be subjected to slag is washed away and fragile; And under ultralow temperature, the higher occasion of superelevation moderate pressure, its soft seal band easy deformation and make seal failure, thus influence the working life of butterfly valve, therefore need the better butterfly valve of a kind of wear-resisting property.
The model utility content
The utility model provides a kind of three eccentric hard sealings wear-resisting butterfly valves, and it is not enough and influenced the shortcoming in working life that it has solved the wear-resisting property of butterfly valve in the background technique.
One of technological scheme that its technical problem that solves the utility model adopts is:
The wear-resisting butterfly valves of the hard sealing of three off-centre, it comprises a valve body, a driving mechanism and butterfly plate composition, and wherein: described valve body has turret wall in, and described interior turret wall has a conical surface section; Described driving mechanism has a valve rod that puts in turret wall in the described valve body; Described butterfly plate composition is located on the described valve rod and is positioned within the described valve body, it comprises a butterfly plate and a pressing plate, described butterfly plate has an axial end, described pressing plate is fixed in the axial end of described butterfly plate, described butterfly plate is formed and is also comprised a hard seal ring, described seal ring is fixed between described butterfly plate and the described pressing plate, and corresponding described conical surface section; Described butterfly plate is a plane in the joint with described seal ring.
In one preferred embodiment, described seal ring stretches out in described butterfly plate and described pressing plate, and the described conical surface section of contact.
In one preferred embodiment, form a fixed groove between described butterfly plate and the described pressing plate, described seal ring is located at described fixed groove and is stretched out outside it.
In one preferred embodiment, the axial end of described butterfly plate is provided with first positioning step and second positioning step, forms described fixed groove between described first positioning step and the described pressing plate, and described pressing plate is positioned described second positioning step.
In one preferred embodiment, built-up welding has wear-resistant alloy layer on the conical surface section of described interior turret wall.
In one preferred embodiment, described butterfly plate and described pressing plate are affixed by bolt.
In one preferred embodiment, described seal ring is a wear-resistant material.
Two of the technological scheme that its technical problem that solves the utility model adopts is:
The wear-resisting butterfly valves of the hard sealing of three off-centre, it comprises a valve body, a driving mechanism and butterfly plate composition, and wherein: described valve body has turret wall in, and described interior turret wall has two conical surface sections; Described driving mechanism has a valve rod that puts in turret wall in the described valve body; Described butterfly plate composition is located on the described valve rod and is positioned within the described valve body, it comprises a butterfly plate and two pressing plates, described butterfly plate has an axial end, described pressing plate is fixed in the two ends of the axial end of described butterfly plate respectively, described butterfly plate is formed and is also comprised two hard seal rings, described seal ring is fixed in respectively between described butterfly plate and the described pressing plate, and respectively corresponding described two conical surface sections; Described butterfly plate is a plane in the joint with described seal ring.
The wear-resisting butterfly valve of of the present utility model three eccentric hard sealings, it is compared with background technique, has the following advantages:
1. the sealed picture of this butterfly valve is a hard sealed picture, and it has realized hard sealing, has strengthened the wear-resisting property of butterfly valve, has increased the working life of butterfly valve, can be applicable in the blast furnace slag flushing system;
2. because butterfly plate only is a plane in the joint of itself and sealed picture, also need not to be provided with Regulation spring, can realize good one-way sealing, make structure simpler, simplified processing technology;
3. sealed picture is located between the axial end and pressing plate of butterfly plate, and the conical surface section of the interior turret wall of contact valve body, and the axial end of butterfly plate is provided with two positioning steps, therefore, sealed picture and pressing plate can firmly be positioned two positioning steps of butterfly plate respectively, and structural design is ingenious, and each parts cooperates compact;
4. built-up welding has wear-resistant alloy layer on the conical surface section, and the material of sealed picture is wear-resistant materials such as stainless steel, so being sealed and matched firmly between the two is effective, and the wear-resisting property of this butterfly valve is better;
5. the structure of this butterfly valve also can be designed to: interior turret wall has two conical surface sections, and the quantity of pressing plate and sealed picture is two, so sealed picture is located at the two ends and corresponding two conical surface sections of difference of butterfly plate axial end respectively.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the generalized section of the butterfly valve of preferred embodiment.
Fig. 2 is the local enlarged diagram at I place among Fig. 1.
Description of reference numerals:
Valve body-100; Interior turret wall-110; Conical surface section-111,112; Wear-resistant alloy layer-113; Driving mechanism-200; Valve rod-210; Control mechanism-220; Butterfly plate forms-300; Butterfly plate-310; First positioning step-311,311 '; Second positioning step-312,312 '; Pressing plate-321,322; Hard sealed picture-331,332; Fixed groove-410,420; Bolt-510,520.
Embodiment
See also Fig. 1 to Fig. 2, be the wear-resisting butterfly valve of three eccentric hard sealings that preferred embodiment of the present utility model provided.
The wear-resisting butterfly valve of described three eccentric hard sealings, it comprises a valve body 100, a driving mechanism 200 and butterfly plate composition 300, wherein:
Described valve body 100 has turret wall 110 in, and the two ends up and down of described interior turret wall 110 are respectively equipped with two conical surface sections 111,112, and equal built-up welding has a wear-resistant alloy layer 113 on described two conical surface sections 111,112;
Described driving mechanism 200 comprises a valve rod 210 and a control mechanism 220, described valve rod 210 puts in the interior turret wall 110 of described valve body 100, described control mechanism 220 affixed described valve rods 210 also are positioned at outside the described valve body 100, and described control mechanism 220 drives described valve rod 210 and rotates relative to described valve body 110;
Described butterfly plate is formed 300 affixed described valve rods 210 and is positioned within the described valve body 100, and it comprises a butterfly plate 310, two pressing plates 321,322 and two hard sealed pictures 331,332, wherein:
The rotation of described valve rod 210 will drive described butterfly plate 310 and rotate, and described butterfly plate 310 has an axial end, and the top of described axial end and bottom are respectively equipped with two pairs first positioning steps 311,311 ' and second positioning step 312,312 ';
Described first pressing plate 321 is fixed in described axial end by a bolt 510, and be abutted against in described second positioning step 312 its bottom; Form a fixed groove 410 between first positioning step 311 of described butterfly plate 310 and described first pressing plate 321, the described first hard sealed picture 331 closely is fixedly arranged in the described fixed groove 410, and its outer turning surface stretches out described fixed groove 410 with the described conical surface section 111 of contact, to realize tight seal, the described first hard sealed picture 331 is a wear-resistant material, as cemented carbide such as stainless steels, the cell wall of described fixed groove 410 is the plane, and promptly described axial end is a plane in the joint with the described first hard sealed picture 331;
Described second pressing plate 322 is fixed in described axial end by a bolt 520, and described second positioning step 312 ' is abutted against on its top; Form a fixed groove 420 between first positioning step 311 ' of described butterfly plate 310 and described second pressing plate 322, the described second hard sealed picture 332 closely is fixedly arranged in the described fixed groove 420, and its outer turning surface stretches out described fixed groove 420 with the described conical surface section 112 of contact, to realize tight seal, the described second hard sealed picture 332 is a wear-resistant material, as cemented carbide such as stainless steels, the cell wall of described fixed groove 420 is the plane, and promptly described axial end is a plane in the joint with described hard sealed picture 332.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented according to this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (8)
1. three off-centre seal wear-resisting butterfly valves firmly, and it comprises a valve body, a driving mechanism and butterfly plate composition, and wherein: described valve body has turret wall in, and described interior turret wall has a conical surface section; Described driving mechanism has a valve rod that puts in turret wall in the described valve body; Described butterfly plate composition is located on the described valve rod and is positioned within the described valve body, it comprises a butterfly plate and a pressing plate, described butterfly plate has an axial end, described pressing plate is fixed in the axial end of described butterfly plate, it is characterized in that: described butterfly plate is formed and is also comprised a hard seal ring, described seal ring is fixed between described butterfly plate and the described pressing plate, and corresponding described conical surface section; Described butterfly plate is a plane in the joint with described seal ring.
2. the wear-resisting butterfly valve of according to claim 1 three eccentric hard sealings, it is characterized in that: described seal ring stretches out in described butterfly plate and described pressing plate, and the described conical surface section of contact.
3. the wear-resisting butterfly valve of according to claim 1 three eccentric hard sealings, it is characterized in that: form a fixed groove between described butterfly plate and the described pressing plate, described seal ring is located at described fixed groove and is stretched out outside it.
4. the wear-resisting butterfly valve of according to claim 3 three eccentric hard sealings, it is characterized in that: the axial end of described butterfly plate is provided with first positioning step and second positioning step, form described fixed groove between described first positioning step and the described pressing plate, described pressing plate is positioned described second positioning step.
5. according to the wear-resisting butterfly valve of each described three eccentric hard sealing in the claim 1 to 4, it is characterized in that: built-up welding has wear-resistant alloy layer on the conical surface section of described interior turret wall.
6. according to the wear-resisting butterfly valve of each described three eccentric hard sealing in the claim 1 to 4, it is characterized in that: described butterfly plate and described pressing plate are affixed by bolt.
7. according to the wear-resisting butterfly valve of each described three eccentric hard sealing in the claim 1 to 4, it is characterized in that: described seal ring is a wear-resistant material.
8. three off-centre seal wear-resisting butterfly valves firmly, and it comprises a valve body, a driving mechanism and butterfly plate composition, and wherein: described valve body has turret wall in, and described interior turret wall has two conical surface sections; Described driving mechanism has a valve rod that puts in turret wall in the described valve body; Described butterfly plate composition is located on the described valve rod and is positioned within the described valve body, it comprises a butterfly plate and two pressing plates, described butterfly plate has an axial end, described pressing plate is fixed in the two ends of the axial end of described butterfly plate respectively, it is characterized in that: described butterfly plate is formed and is also comprised two hard seal rings, described seal ring is fixed in respectively between described butterfly plate and the described pressing plate, and respectively corresponding described two conical surface sections; Described butterfly plate is a plane in the joint with described seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205770734U CN201875159U (en) | 2010-10-25 | 2010-10-25 | Triple eccentric hard seal wear-resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205770734U CN201875159U (en) | 2010-10-25 | 2010-10-25 | Triple eccentric hard seal wear-resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875159U true CN201875159U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205770734U Expired - Lifetime CN201875159U (en) | 2010-10-25 | 2010-10-25 | Triple eccentric hard seal wear-resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875159U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615550A (en) * | 2013-11-04 | 2014-03-05 | 乐清市阀门厂 | Marine center type multilayer hard sealing butterfly valve |
| CN104279341A (en) * | 2013-07-04 | 2015-01-14 | 浙江北泽阀门制造有限公司 | Triple-eccentric two-way hard sealing butterfly valve |
| CN105782476A (en) * | 2016-05-13 | 2016-07-20 | 镇江颀龙科技有限公司 | Locating and adjusting device of mechanical equipment |
-
2010
- 2010-10-25 CN CN2010205770734U patent/CN201875159U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279341A (en) * | 2013-07-04 | 2015-01-14 | 浙江北泽阀门制造有限公司 | Triple-eccentric two-way hard sealing butterfly valve |
| CN103615550A (en) * | 2013-11-04 | 2014-03-05 | 乐清市阀门厂 | Marine center type multilayer hard sealing butterfly valve |
| CN105782476A (en) * | 2016-05-13 | 2016-07-20 | 镇江颀龙科技有限公司 | Locating and adjusting device of mechanical equipment |
| CN105782476B (en) * | 2016-05-13 | 2018-05-22 | 镇江颀龙科技有限公司 | A kind of location adjusting device of mechanical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361000 Jingshan Road, Jimei District, Xiamen, Fujian Province, No. 801-805 Patentee after: Semak (Xiamen) valve Co. Ltd. Address before: 361000 Jingshan Road, Jimei District, Xiamen, Fujian Province, No. 801-805 Patentee before: SMKFD (Xiamen) Valve Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |