CN204533573U - A kind of two-way sphere metallic sealing butterfly valve - Google Patents
A kind of two-way sphere metallic sealing butterfly valve Download PDFInfo
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- CN204533573U CN204533573U CN201420860968.7U CN201420860968U CN204533573U CN 204533573 U CN204533573 U CN 204533573U CN 201420860968 U CN201420860968 U CN 201420860968U CN 204533573 U CN204533573 U CN 204533573U
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- valve rod
- metallic sealing
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Abstract
The utility model relates to a kind of two-way sphere metallic sealing butterfly valve, comprise valve body, butterfly lobe, valve seat, valve rod and manual operating device, valve body is located at bottom, and valve seat is arranged on valve body, and butterfly lobe is arranged in valve seat, valve rod is connected with butterfly lobe, manual operating device is connected on valve rod is with ovable valve stem to rotate control keying, and butterfly lobe departs from the center line of sealing surface, is formed once eccentric, butterfly lobe departs from the center line of pipeline, forms secondary eccentric.Compared with prior art, the utility model adopts the two eccentric structure of sphere, has and reduces friction, reduce operation moment of torsion, improve the advantages such as working life.
Description
Technical field
The utility model relates to a kind of seal butterfly valve, especially relates to a kind of two-way sphere metallic sealing butterfly valve.
Background technique
Two-way sphere metallic sealing butterfly valve has the function that throttling, balance and pipeline dam.Be applicable to the supply and drain water system of petrochemical industry, environment protection treating, power plant, sewage treatment and tall building.But the seal butterfly valve used at present mostly adopts three eccentricity structure, and its seal ring is multiple layer metal and Expanded graphite stacked structure, and requirement on machining accuracy is high, complex structure and reverse pressure-bearing ability is poor.
Chinese patent CN201547274U discloses bidirectional metal hard-sealing butterfly valve, comprise valve body, butterfly lobe, seal ring, seal ring is installed in valve body, seal ring is divided into left seal ring and right seal ring, and itself and butterfly lobe contacting point are semicircle, and left seal ring and right seal ring are back-to-back closely, groove is had in valve body, groove is built with divided ring, and left seal ring and right seal ring are fixed in valve body by pressing plate, divided ring and screw, and butterfly flap seal face is sphere.But still there is friction factor and operate the higher problem of moment of torsion in this butterfly valve.
Model utility content
The purpose of this utility model is exactly provide a kind of two eccentric structure of sphere that adopts to overcome defect that above-mentioned prior art exists, reduces friction, reduces operation moment of torsion, improve the two-way sphere metallic sealing butterfly valve in working life.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of two-way sphere metallic sealing butterfly valve, comprise valve body, butterfly lobe, valve seat, valve rod and manual operating device, described valve body is located at bottom, described valve seat is arranged on valve body, described butterfly lobe is arranged in valve seat, described valve rod is connected with butterfly lobe, and described manual operating device is connected on valve rod is with ovable valve stem to rotate control keying
Described butterfly lobe departs from the center line of sealing surface, and formed once eccentric, butterfly lobe departs from the center line of pipeline, form secondary eccentric, eccentric object is butterfly lobe is turned on to about 10 ° of parts, departs between butterfly lobe and valve seat, thus reduce friction, reduce operation moment of torsion.
Described valve body is mounted on base through bolt, and this base is the bottom cover of valve body.
Described valve body and the joint of base are also provided with spacer and split snap ring.
Described valve rod is made up of the upper valve rod connected successively and lower valve rod.
Described upper valve rod and lower valve rod through straight pin be connected butterfly lobe and connect.
Described lower valve rod is arranged with and reduces the axle sleeve that lower valve rod rotates generation friction.
Described valve seat is sphere elastic seat, forms sealing pair with butterfly lobe.
The upper filler preventing medium from revealing, middle filler and Packing seat is provided with, through Gland compacting above described valve seat.
Described valve seat adopts Austenitic Stainless Steel, possesses high strength, high tenacity, good welding performance and cold forming capability, low Cold Brittleness Transition Temperature, good corrosion proof characteristic and car moulding process.
The sealing surface weld deposit of butterfly lobe has hardness high, the austenitic stainless steel material that corrosion resistance is good, and making to cause has with sphere elastic seat the mechanical property matched.Butterfly lobe two ends have specific design spherical, and outer-diameter accuracy is high, and tolerance is little.Lobe edge sealing polishing treatment, not only ensures excellent sealing but also have the characteristic reducing operational torque.
Compared with prior art, the utility model has the following advantages:
(1) two-way sphere metallic sealing butterfly valve feature adopts the two eccentric structure of sphere exactly, butterfly lobe turns on to about 10 ° of parts, departs between butterfly lobe and valve seat, thus reduces friction, reduces operation moment of torsion.
(2) design of high temperature resistant, sphere elastic seat, has the advantages that the temperature difference and wearing and tearing etc. are had to self-compensating, ensure that valve seal performance.
(3) because the material of spheric elastic seat is Austenitic Stainless Steel, possess high strength, high tenacity, good welding performance and cold forming capability, low Cold Brittleness Transition Temperature, good corrosion proof characteristic and car moulding process, substantially increase the machining accuracy of sphere elastic seat, reduce cost of production, ensure valve seal performance.
(4) sealing surface weld deposit of butterfly lobe has hardness high, the austenitic stainless steel material that corrosion resistance is good, and making to cause has with sphere elastic seat the mechanical property matched.Butterfly lobe two ends have specific design spherical, and outer-diameter accuracy is high, and tolerance is little, and lobe edge sealing polishing treatment, not only ensures excellent sealing but also have the characteristic reducing operational torque.
(5) sphere elastic seat, highly versatile, can change in time, fast at the scene, ensure that production is normally carried out.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is right TV structure schematic diagram of the present utility model.
In figure, 1-bolt I, 2-base, 3-pad, 4-spacer, 5-split filler, the upper filler of 17-, 18-Gland, 19-stud, 20-bolt II, 21-upper valve rod, 22-key, 23-spanner cover, 24-manual operating device, 25-support, 26-straight pin in snap ring, 6-valve body, 7-screw I, 8-trim ring, 9-axle sleeve, 10-lower valve rod, 11-butterfly lobe, 12-straight pin, 13-valve seat, 14-O shape seal ring, 15-Packing seat, 16-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
A kind of two-way sphere metallic sealing butterfly valve, its structure as shown in Figure 1-2, mainly comprise valve body 6, butterfly lobe 11, valve seat 13, valve rod and manual operating device 24, valve body 6 is located at bottom, what valve seat 13 adopted is sphere elastic seat, be arranged on valve body 13, butterfly lobe 11 is arranged in valve seat 13, forms sealing pair with valve seat 13.Valve rod is connected with butterfly lobe 11, manual operating device 24 is connected on valve rod is with ovable valve stem to rotate control keying, the utility model possesses an important innovative point and is, butterfly lobe 11 departs from the center line of sealing surface, is formed once eccentric, also depart from the center line of pipeline in addition, form secondary eccentric, eccentric object is butterfly lobe 11 is turned on to about 10 ° of parts, produces and depart between butterfly lobe 11 and valve seat 13, thus reduce friction, reduce operation moment of torsion.
Next be described further each assembly: valve rod is made up of the upper valve rod 21 connected successively and lower valve rod 10, valve body 6 is mounted on base 2 through bolt I 1, pad 3, and this base 2 is the bottom cover of valve body, prevents the leakage of medium.Valve body 6 is also provided with spacer 4 with the joint of base 2 and splits snap ring 5.Spacer 4 is mainly used in reducing the friction of lower valve rod 10 to base 2 when rotating, and splitting snap ring 5 is for preventing lower valve rod 10 at the play of axis, upper valve rod 21 and lower valve rod 10 through straight pin 12 be connected butterfly lobe and connect.Trim ring 8 is fastened on valve body 6 by screw I 7, lower valve rod 10 is arranged with and reduces the axle sleeve 9 that lower valve rod 10 rotates generation friction.The upper filler 17, middle filler 16 and the Packing seat 15 that prevent medium from revealing is provided with, through Gland 18 compacting above valve seat 13.Stud 19, bolt II 20 are mainly used in connecting valve body 6 and support 25.Key 22 is offered at the top of upper valve rod 21, be connected with spanner cover 23, manual operating device 24 in addition, manual operating device 24 is wherein connected with valve body 6 through support 25, in order to prevent valve body 6 and manual operating device 24 from producing displacement in operating mode, is also provided with straight pin 26 in joint.
It is more than the description to two-way sphere metallic sealing butterfly valve structure, next again brief description is done to the material of butterfly valve: valve seat 13 adopts Austenitic Stainless Steel, possess high strength, high tenacity, good welding performance and cold forming capability, low Cold Brittleness Transition Temperature, good corrosion proof characteristic and car moulding process.
Butterfly lobe 11 will ensure that the sealing of valve is not revealed, and is the major part of valve opening and closing element, therefore has hardness high at the sealing surface weld deposit of butterfly lobe 11, the austenitic stainless steel material that corrosion resistance is good, have with sphere elastic seat the mechanical property matched.Butterfly lobe 11 two ends have specific design spherical, and outer-diameter accuracy is high, and tolerance is little.Lobe edge sealing polishing treatment, not only ensures excellent sealing but also have the characteristic reducing operational torque.
Claims (8)
1. a two-way sphere metallic sealing butterfly valve, comprise valve body, butterfly lobe, valve seat, valve rod and manual operating device, described valve body is located at bottom, described valve seat is arranged on valve body, described butterfly lobe is arranged in valve seat, described valve rod is connected with butterfly lobe, and described manual operating device is connected on valve rod is with ovable valve stem to rotate control keying
It is characterized in that,
Described butterfly lobe departs from the center line of sealing surface, is formed once eccentric,
Described butterfly lobe departs from the center line of pipeline, forms secondary eccentric.
2. the two-way sphere metallic sealing butterfly valve of one according to claim 1, it is characterized in that, described valve body is mounted on base through bolt, and this base is the bottom cover of valve body.
3. the two-way sphere metallic sealing butterfly valve of one according to claim 2, is characterized in that, described valve body and the joint of base are also provided with spacer and split snap ring.
4. the two-way sphere metallic sealing butterfly valve of one according to claim 1, it is characterized in that, described valve rod is made up of the upper valve rod connected successively and lower valve rod.
5. the two-way sphere metallic sealing butterfly valve of one according to claim 4, is characterized in that, described upper valve rod and lower valve rod through straight pin be connected butterfly lobe and connect.
6. the two-way sphere metallic sealing butterfly valve of one according to claim 4, is characterized in that, described lower valve rod is arranged with and reduces the axle sleeve that lower valve rod rotates generation friction.
7. the two-way sphere metallic sealing butterfly valve of one according to claim 1, is characterized in that, described valve seat is sphere elastic seat, forms sealing pair with butterfly lobe.
8. the two-way sphere metallic sealing butterfly valve of one according to claim 1, is characterized in that, is provided with the upper filler preventing medium from revealing, middle filler and Packing seat, through Gland compacting above described valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860968.7U CN204533573U (en) | 2014-12-30 | 2014-12-30 | A kind of two-way sphere metallic sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860968.7U CN204533573U (en) | 2014-12-30 | 2014-12-30 | A kind of two-way sphere metallic sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533573U true CN204533573U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860968.7U Active CN204533573U (en) | 2014-12-30 | 2014-12-30 | A kind of two-way sphere metallic sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090539A (en) * | 2015-09-17 | 2015-11-25 | 上海沪东造船阀门有限公司 | Two-way-sealed double-eccentric butterfly valve |
| CN106763825A (en) * | 2016-12-30 | 2017-05-31 | 西安航天动力研究所 | A kind of butterfly valve of utilization y shapes adjustable elastic valve seat construction |
-
2014
- 2014-12-30 CN CN201420860968.7U patent/CN204533573U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090539A (en) * | 2015-09-17 | 2015-11-25 | 上海沪东造船阀门有限公司 | Two-way-sealed double-eccentric butterfly valve |
| CN106763825A (en) * | 2016-12-30 | 2017-05-31 | 西安航天动力研究所 | A kind of butterfly valve of utilization y shapes adjustable elastic valve seat construction |
| CN106763825B (en) * | 2016-12-30 | 2024-02-27 | 西安航天动力研究所 | Butterfly valve utilizing y-shaped adjustable elastic valve seat structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |