CN88212280U - Butterfly valve with metal sealing body - Google Patents
Butterfly valve with metal sealing body Download PDFInfo
- Publication number
- CN88212280U CN88212280U CN 88212280 CN88212280U CN88212280U CN 88212280 U CN88212280 U CN 88212280U CN 88212280 CN88212280 CN 88212280 CN 88212280 U CN88212280 U CN 88212280U CN 88212280 U CN88212280 U CN 88212280U
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- CN
- China
- Prior art keywords
- butterfly valve
- butterfly
- metal hard
- hard sealing
- sealing
- Prior art date
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Abstract
The utility model relates to a butterfly valve with a metal hard sealing body, which belongs to the range of hard sealing butterfly valves and is suitable for the opening, stopping and flow regulation by power plants, metallurgy industries and urban heat supply departments during hot fluid transportation. The butterfly valve with metal hard sealing body is characterized in that the butterfly valve with metal hard sealing body is composed of a valve body, a butterfly plate, an operating device, a metal elastic sealing ring, etc.; because the butterfly valve adopts a metal hard sealing form, the butterfly valve can be used in hot fluid media; the applicable pressure is 1.6Mpa, and the temperature is 350; the butterfly valve with metal hard sealing body does not need disassembly and repair, and the service life is more than 10 years. The utility model has the advantages of compact structure, light weight, corrosion resistance, and labor-saving operation.
Description
The utility model relates to a kind of hard seal butterfly valve scope, is applicable to the power station, and metallurgy industry and city heat supply department do to open, end when hot fluid is carried and regulate flow and use.
Present electronic three rod-type butterfly valves that have Shijiazhuang to produce in the prior art, it is by valve body, Effector, flap, valve rod, Sealing etc. are partly formed, its Sealing can only be suitable for low pressure (≤0.05Mpa) and the sealing under lower temperature (≤250 ℃) situation, its structure is comparatively complicated.
The purpose of this utility model be make a kind of can middle temperature, in depress work and good seal performance, do not need laid-up, the butterfly valve that the life-span is long.
The utility model is a kind of wafer type metal hard-sealing butterfly valve, by valve body, butterfly plate, Effector and Sealing etc. are partly formed, Sealing adopts the metal hard-sealing device, and butterfly plate is an ellipse garden shape, and its sealing surface is arc (comprising symmetry and asymmetric arc), the sealing surface of butterfly plate matches with elastic seal ring on being contained in valve body, is used for guaranteeing tight sealing.
The arc sealing surface of butterfly plate, adopt stainless steel by wear-resisting, corrosion resistant metal as weldering stainless steel or integral body, material such as chromium plating, coating is made, elastic seal ring adopts elastic stainless steel to be processed into, C shape can be adopted in its cross section, U-shaped or O shape, and the inside nominal diameter scope of butterfly valve is (50-2000) mm, it is≤1.6Mpa that temperature is≤350 ℃ hot fluid effect that butterfly valve can bear pressure.
The utility model compared with prior art, its advantage is to bear the effect of the hot fluid medium of higher pressure and temperature, and good sealing effect, wear-resistance and anti-corrosion can not need laid-up, working life is more than 10 years, and is simple in structure, easy and simple to handle.
Below in conjunction with accompanying drawing embodiment is described: see Fig. 1, the wafer type metal hard-sealing butterfly valve of Fig. 2 DN500mm mouth warp, by valve body of cylinder iron making (1) and the butterfly plate (2) made with cast steel, and be contained in elastic seal ring (3) on the valve body (1), be used for controlling the part compositions such as Effector (14) that butterfly plate opens and closes, driving mode can adopt handwheel or electronic, surge, handwheel (8) is fixed on the axle of small gear (4), small gear (4) is meshed with gearwheel (5), gearwheel (5) is fixed on the axle of worm screw (7), worm screw (7) drives worm gear (6), worm gear (6) is installed on major axis (12) one ends of φ 60mm with flat key, the middle part of major axis (12) is contained in again in the sliding bearing of valve body (1), see Fig. 2, the housing of Effector (15) is installed on the flange of valve body (1) with the screw (10) of 4 uniform M10, in valve body another sliding bearing relative with major axis (12) end face, the passive minor axis (13) of φ 60mm is housed, major axis (12) and minor axis (13) are used for installing butterfly plate (2), butterfly plate (2) is an ellipse garden shape, it is wear-resisting that its edge sealing surface is welded with stainless steel etc., corrosion-resistant metal materials, through being finish-machined to arc shaped surface, the φ 60mm bearing that two disconnections are arranged on the long axis direction of butterfly plate (2), the axis hole of these two disconnections is set on active major axis (12) and the passive minor axis (13), and use 2 and 1 pin (9) to be fixed in the end face of body cavity one side among Fig. 3 respectively, be processed into two step-like steps, on the step that close end face diameter is φ 534mm a rubber asbestos packing (16) is housed, trim ring (11) is housed on rubber asbestos packing (16), trim ring (11) is to fix with 10 uniform screws (10) with valve body (1), in pressured circle step the inside, the small stair that a φ 494mm is arranged, be used for pressing elastic seal ring (3), elastic seal ring (3) adopts the elastic stainless steel pipe of φ 10mm to be processed into.
When wanting throttle down, clockwise rotates handwheel (8), at this moment small gear (4) drives gearwheel (5), also make worm screw (7) rotation drive worm gear (6), thereby making major axis (12) drive butterfly plate (2) rotates to opening and closing direction, at this moment the sealing surface of butterfly plate (2) long axis direction progresses in the elastic seal ring (3) on the valve body (1), make elastic seal ring (3) produce certain elastic deformation with the shape of butterfly plate (2), when butterfly plate (2) continues rotation, its short-axis direction sealing surface progresses into again in the elastic seal ring (3), because of butterfly plate (2) is an ellipse garden shape, and its edge section is again the arc sealing surface, so the sealing surface of butterfly plate (2) is to tight, when closing end soon, because body cavity pressure increases gradually by pine with contacting of elastic seal ring (3), make elastic seal ring (3) stressed, can produce self sealing action, sealing at this moment reaches the optimum state, till butterfly plate (2) is closed fully.
Accompanying drawing 1 is the plan view of wafer type metal hard-sealing butterfly valve;
Accompanying drawing 2 is the plan view of wafer type metal hard-sealing butterfly valve;
Accompanying drawing 3 is a wafer type metal hard-sealing butterfly valve seal arrangement schematic representation;
Number in the figure is expressed as:
Valve body (1) pin (9)
Butterfly plate (2) screw (10)
Elastic seal ring (3) trim ring (11)
Small gear (4) major axis (12)
Gearwheel (5) minor axis (13)
Worm gear (6) Effector (14)
Worm screw (7) Effector housing (15)
Handwheel (8) rubber asbestos packing (16)
Claims (5)
1, a kind of wafer type metal hard-sealing butterfly valve, by valve body [1], butterfly plate [2], Effector [14] and Sealing are partly formed, it is characterized in that butterfly plate [2] is ellipse garden shape, its sealing surface is an arc, and the arc sealing surface matches with elastic seal ring [3] on being contained in valve body [1], forms the metal hard-sealing device.
2, butterfly valve according to claim 1 is characterized in that the arc sealing surface of butterfly plate (2) is wear-resisting by stainless steel or other, corrosion-resistant metal materials are made.
3, butterfly valve according to claim 1 is characterized in that elastic seal ring (3) made by stainless steel material.
4, according to claim 1,3 described butterfly valves, the cross section that it is characterized in that elastic seal ring (3) is a C shape, U-shaped or O shape.
5, butterfly valve according to claim 1 is characterized in that the butterfly valve inside nominal diameter is 50mm-2000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212280 CN88212280U (en) | 1988-03-16 | 1988-03-16 | Butterfly valve with metal sealing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212280 CN88212280U (en) | 1988-03-16 | 1988-03-16 | Butterfly valve with metal sealing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88212280U true CN88212280U (en) | 1988-09-07 |
Family
ID=4845599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88212280 Withdrawn CN88212280U (en) | 1988-03-16 | 1988-03-16 | Butterfly valve with metal sealing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88212280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595506A (en) * | 2015-02-09 | 2015-05-06 | 胡和锁 | Butterfly valve seal structure |
| CN104972268A (en) * | 2015-05-18 | 2015-10-14 | 潘洁萍 | Repairing method for butterfly valve leakage |
-
1988
- 1988-03-16 CN CN 88212280 patent/CN88212280U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595506A (en) * | 2015-02-09 | 2015-05-06 | 胡和锁 | Butterfly valve seal structure |
| CN104972268A (en) * | 2015-05-18 | 2015-10-14 | 潘洁萍 | Repairing method for butterfly valve leakage |
| CN104972268B (en) * | 2015-05-18 | 2017-08-01 | 潘洁萍 | A kind of restorative procedure of butterfly valve seepage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |