CN204961857U - Elasticity two way seal high performance all -metal butterfly valve sealed firmly - Google Patents
Elasticity two way seal high performance all -metal butterfly valve sealed firmly Download PDFInfo
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- CN204961857U CN204961857U CN201520716494.3U CN201520716494U CN204961857U CN 204961857 U CN204961857 U CN 204961857U CN 201520716494 U CN201520716494 U CN 201520716494U CN 204961857 U CN204961857 U CN 204961857U
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- valve body
- valve
- valve rod
- butterfly
- elasticity
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Abstract
The utility model discloses an elasticity two way seal high performance all -metal butterfly valve sealed firmly, which comprises the following components: a valve body, the bottom is installed to the lower extreme of valve body, the bottom passes through soket head cap screw with the valve body and is connected, the upper end circumference of bottom is equipped with sealed the pad, the valve rod is installed to the inner chamber of valve body, the lower extreme of valve rod is equipped with the divided ring, the left side of valve rod is equipped with the butterfly plate, the upper end of butterfly plate is equipped with the clamp plate, it is fixed that the clamp plate passes through soket head cap screw, and the right side of clamp plate is equipped with the sealing washer, the right -hand member of sealing washer is equipped with the winding gasket, the circumference of valve rod is equipped with the cylindric lock, self -lubricating bearing is installed with the junction of valve body to the valve rod. The utility model discloses can compensate the inhomogeneous point of atress in the twinkling of an eye fast along the circumference and leak opening and close in -process butterfly plate sealing ring contact surface, make whole sealing washer atress even, solve the two way seal problem that the valve exists at the medium transport of two -way exchange in -process.
Description
Technical field
The utility model relates to seal butterfly valve technical field, is specially a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve.
Background technique
Its seal form of traditional butterfly valve adopts the sealing configuration of two bias and three eccentricity mostly, and sealing material is rubber, teflon etc.Due to the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the industry such as to resistance to wear.Conventional butterfly valve is three eccentric metal hard sealed butterfly damper now, valve body and valve seat are disjunctor component, valve seat sealing surface layer build-up welding alloy material, the soft stacked seal ring of multilayer is fixed on valve plate, this butterfly valve compare have high temperature resistant, operate light, compensation sealing is carried out along with the moment of driving mechanism increases during closedown, the sealing that improve butterfly valve and the advantage increased the service life, but these are one-way sealing butterfly valve mostly, under some special operation condition, wear resistance requires high, under pipeline requires two way sealed, high pressure, multi-level butterfly valve is just inapplicable.We design a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve for this reason, are used for solving the problem.
Model utility content
The purpose of this utility model is to provide a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme: a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve, comprise valve body, the lower end of described valve body is provided with bottom, described bottom is connected by socket head screw with valve body, the upper end of described bottom is circumferentially with sealing gasket, the inner chamber of described valve body is provided with valve rod, the lower end of described valve rod is provided with divided ring, the left side of described valve rod is provided with butterfly plate, the upper end of described butterfly plate is provided with pressing plate, described pressing plate is fixed by socket head screw, and the right side of pressing plate is provided with seal ring, the right-hand member of described seal ring is provided with spirotallic gasket, described valve rod be circumferentially with straight pin, the joint of described valve rod and valve body is provided with self oiling bearing, gap is left between the upper end of described valve rod and valve body, and be provided with packed layer in gap, the upper end of institute's packed layer is provided with Gland, the upper end of described Gland is provided with support, the top of described valve body is provided with parallel key, the upper end of described parallel key is provided with twin-stage worm gear drive.
Preferably, described Gland is connected with valve body screw thread.
Preferably, graphite packing is filled with in described packed layer.
Preferably, described valve body and seal ring all adopt pile-up welding hard alloy STL to make.
Compared with prior art, the beneficial effects of the utility model are: this butterfly valve adopts three dimension eccentric structure, butterfly plate, sealing surface of seat adopts numerical control (NC) Machining Accuracy high, the moment that butterfly plate is being opened, sealing surface departs from completely, butterfly plate close process in almost without rub, close light, have and more close more always lock function, selfsealings performance, sealability is reliable and stable, valve body and valve seat seal ring adopts pile-up welding hard alloy STL, butterfly plate seal ring adopts stainless steel material solid forging, and through the special processing such as solid solution and nitrogenize, there is the two-fold advantage of metal hard-sealing and elastic packing, valve seat insert and butterfly plate sealing ring material adopt different hardness, the difference of hardness produced has anticorrosive, wear-resistant, high temperature resistant, long service life, have employed " butterfly plate seal ring auto-compensation balanced seal structure " design, make butterfly plate open drag minimization and reliably achieve butterfly valve inlet-outlet bidirectional sealing zero leakage, in opening-closing process butterfly plate sealing surface circumferentially each point can moment complete fast, the fast automatic compensation of two elastic groove is accurate must achieve the sealing action of closing and contacting and automatically matching, full-metallic hard seal butterfly valve sealing configuration achieves the clean of pipeline medium and wholesomeness, elasticity two way sealed high-performance full-metallic hard seal butterfly valve realizes being used for pressure duct, wear resistance requires high, there is the special media condition condition that two way sealed requires, the highest can under 900LB pressure operating mode use, operating temperature can reach 650 degrees Celsius,
Butterfly plate seal ring adopts independently seal ring design, seal ring bi-side all have two symmetrical wedge-type elastic grooves, two elastic groove can produce the resiliently deformable of trace under bi-directional compression, in opening-closing process, butterfly plate seal ring surface of contact circumferentially can compensate the some leakage of discontinuity moment fast, complete and effectively compensate in sealing ring, make whole seal ring uniform force, solve the two way sealed problem that valve exists in the medium transport process of two-way exchange.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model plan view structural representation;
Fig. 3 is the enlarged view of the utility model A-A;
Fig. 4 is the utility model size edge direction figure.
In figure: 1 bottom, 2 socket head screws, 3 sealing gaskets, 4 divided rings, 5 valve bodies, 6 valve rods, 7 butterfly plates, 8 straight pins, 9 self oiling bearings, 10 fillers, 11 twin-stage turbine-driven sets, 12 parallel keys, 13 Glands, 14 supports, 15 seal rings, 16 spirotallic gaskets, 17 socket head screws, 18 pressing plates.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-4, the utility model provides a kind of technological scheme: a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve, comprise valve body 5, the lower end of valve body 5 is provided with bottom 1, bottom 1 is connected by socket head screw 2 with valve body 5, the upper end of bottom 1 is circumferentially with sealing gasket 3, the inner chamber of valve body 5 is provided with valve rod 6, the lower end of valve rod 6 is provided with divided ring 4, the left side of valve rod 6 is provided with butterfly plate 7, butterfly plate 7 has seal groove at step place end face car, install one to be wound around gasket seal 3 and to contact with seal ring 15 lateral plane and realize side clearance and seal No leakage, the upper end of butterfly plate 7 is provided with pressing plate 18, pressing plate 18 is fixed by socket head screw, and the right side of pressing plate 18 is provided with seal ring 15, valve body 5 and seal ring 15 all adopt pile-up welding hard alloy STL to make, seal ring 15 on butterfly plate 7 adopts stainless steel material solid forging, and through the special processing such as solid solution and nitrogenize, there is the two-fold advantage of metal hard-sealing and elastic packing, seal ring 15 material on valve seat insert and butterfly plate 7 adopts different hardness, the difference of hardness produced has anticorrosive, wear-resistant, high temperature resistant, long service life, the right-hand member of seal ring 15 is provided with spirotallic gasket 16, valve rod 6 be circumferentially with straight pin 8, valve rod 6 is provided with self oiling bearing 9 with the joint of valve body 5, gap is left between the upper end of valve rod 6 and valve body 5, and in gap, be provided with packed layer 10, graphite packing is filled with in packed layer 10, the upper end of institute's packed layer 10 is provided with Gland 13, the upper end of Gland 13 is provided with support 14, Gland 13 is threaded with valve body 5, the top of valve body 5 is provided with parallel key 12, the upper end of parallel key 12 is provided with twin-stage worm gear drive.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and improvement design thereof and replace or change, all should be encompassed in protection domain of the present utility model.
Claims (4)
1. an elasticity two way sealed high-performance full-metallic hard seal butterfly valve, comprise valve body (5), it is characterized in that: the lower end of described valve body (5) is provided with bottom (1), described bottom (1) is connected by socket head screw (2) with valve body (5), the upper end of described bottom (1) is circumferentially with sealing gasket (3), the inner chamber of described valve body (5) is provided with valve rod (6), the lower end of described valve rod (6) is provided with divided ring (4), the left side of described valve rod (6) is provided with butterfly plate (7), the upper end of described butterfly plate (7) is provided with pressing plate (18), described pressing plate (18) is fixed by socket head screw, and the right side of pressing plate (18) is provided with seal ring (15), the right-hand member of described seal ring (15) is provided with spirotallic gasket (16), described valve rod (6) be circumferentially with straight pin (8), described valve rod (6) is provided with self oiling bearing (9) with the joint of valve body (5), gap is left between the upper end of described valve rod (6) and valve body (5), and in gap, be provided with packed layer (10), the upper end of institute's packed layer (10) is provided with Gland (13), the upper end of described Gland (13) is provided with support (14), the top of described valve body (5) is provided with parallel key (12), the upper end of described parallel key (12) is provided with twin-stage worm gear drive.
2. a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve according to claim 1, is characterized in that: described Gland (13) is threaded with valve body (5).
3. a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve according to claim 1, is characterized in that: described packed layer is filled with graphite packing in (10).
4. a kind of elasticity two way sealed high-performance full-metallic hard seal butterfly valve according to claim 1, is characterized in that: described valve body (5) and seal ring (15) all adopt pile-up welding hard alloy STL to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716494.3U CN204961857U (en) | 2015-09-17 | 2015-09-17 | Elasticity two way seal high performance all -metal butterfly valve sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520716494.3U CN204961857U (en) | 2015-09-17 | 2015-09-17 | Elasticity two way seal high performance all -metal butterfly valve sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961857U true CN204961857U (en) | 2016-01-13 |
Family
ID=55056926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520716494.3U Expired - Fee Related CN204961857U (en) | 2015-09-17 | 2015-09-17 | Elasticity two way seal high performance all -metal butterfly valve sealed firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961857U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822776A (en) * | 2016-04-15 | 2016-08-03 | 蚌埠南自仪表有限公司 | Rigid seal butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN110454578A (en) * | 2018-05-08 | 2019-11-15 | 中核苏阀科技实业股份有限公司 | A kind of hard seal butterfly valve all-metal elasticity circular arc lip sealing ring |
| CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
-
2015
- 2015-09-17 CN CN201520716494.3U patent/CN204961857U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822776A (en) * | 2016-04-15 | 2016-08-03 | 蚌埠南自仪表有限公司 | Rigid seal butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN110454578A (en) * | 2018-05-08 | 2019-11-15 | 中核苏阀科技实业股份有限公司 | A kind of hard seal butterfly valve all-metal elasticity circular arc lip sealing ring |
| CN115654156A (en) * | 2022-11-14 | 2023-01-31 | 大连船用阀门有限公司 | Bidirectional-sealing low-torque triple-eccentric ventilation butterfly valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20180917 |