CN201747944U - Large-size compound type vacuum main valve - Google Patents
Large-size compound type vacuum main valve Download PDFInfo
- Publication number
- CN201747944U CN201747944U CN2010202097189U CN201020209718U CN201747944U CN 201747944 U CN201747944 U CN 201747944U CN 2010202097189 U CN2010202097189 U CN 2010202097189U CN 201020209718 U CN201020209718 U CN 201020209718U CN 201747944 U CN201747944 U CN 201747944U
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- valve
- valve seat
- hydraulic cylinder
- plate
- valve plate
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- Expired - Fee Related
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Abstract
The utility model relates to a large-size compound type vacuum main valve comprising a valve seat, a valve plate, a limit switch, a hydraulic cylinder, a support, a valve seat cone, a hydraulic cylinder push rod, a connecting piece, a crank, a sealing piece pressure plate, a rotary shaft, a stainless steel non-metal material compound sealing ring and the like, wherein the valve seat cone is fixed in a valve hole of the valve seat; the valve plate is positioned on the valve seat by the rotary shaft; the valve plate can rotate around the axial center of the rotary shaft; two ends of the rotary shaft are provided with shaft end baffles which are respectively fixed on the valve seat and the support; a crank driven shaft is concentrically connected the rotary shaft, and connected with the hydraulic cylinder push rod by the connecting piece; the hydraulic cylinder is fixed on the support; the stroke of the hydraulic cylinder push rod is controlled by the limit switch; the edge of the valve plate is provided with the stainless steel non-metal material compound sealing ring; the stainless steel non-metal material compound sealing ring is fixed on the valve plate by the sealing piece pressure plate; and the valve seat is fixed between pipelines by a flange. The large-size compound type vacuum main valve is smooth in transmission and compact and simple in structure. An eccentric mechanism is arranged, the sealing property is high and the service life is long. The valve plate can be seal-closed and seal-opened quickly.
Description
Technical field
The utility model relates to a kind of large-scale combined type vacuum main valve.
Background technique
Large-scale vacuum system and be subjected to fast opening and closing and sealing between the gas outlet means to need a kind of heavy caliber high-performance vacuum valve, usually adopt common large-diameter butterfly valve and use motor-driven form, this structure transmission is not steady, opening and closing time is long, sealability can not satisfy the demands, invention of the present utility model can be satisfied vacuum system and be subjected to steady between the gas outlet means, quick-sealing keying connection request.
Summary of the invention
The purpose of this utility model is to propose a kind of large-scale combined type vacuum main valve.
The large-scale combined type vacuum main valve that the utility model proposes, form by valve seat 1, valve plate 2, axle head baffle plate 3, limit switch 4, oil hydraulic cylinder 5, support 6, flange 7, valve seat cone 8, oil hydraulic cylinder push rod 9, link 10, bent axle 11, Sealing pressing plate 12, running shaft 13 and stainless steel nonmetallic material compound seal ring 14, wherein: valve seat cone 8 is fixed in the valve opening of valve seat 1, valve plate 2 is positioned on the valve seat 1 by running shaft 13, valve plate 2 is connected by key or pin with running shaft 13, and valve plate 2 can be along the axle center rotation of running shaft 13; Running shaft 13 two ends are equipped with axle head baffle plate 3, and the axle head baffle plate 3 that is positioned at running shaft 13 1 ends is fixed on the valve seat 1, and the axle head baffle plate 3 that is positioned at running shaft 13 the other ends is fixed on the support 6; Support 6 is fixed in valve seat 1 one sides, the driven shaft of bent axle 11 is by key and 13 concentric connections of running shaft, the driving shaft of bent axle 11 is connected with oil hydraulic cylinder push rod 9 by link 10, oil hydraulic cylinder 5 is fixed on the support 6, the stroke of oil hydraulic cylinder push rod 9 is by limit switch 4 controls, and limit switch 4 is arranged on the support 6; Valve plate 2 edges are stainless steel nonmetallic material compound seal ring 14, and stainless steel nonmetallic material compound seal ring 14 is fixed on the valve plate 2 by Sealing pressing plate 12; Valve seat 1 is fixed between the pipeline by flange 7.
In the utility model, nonmetallic material can adopt graphite etc. in the stainless steel nonmetallic material compound seal ring 14.
In the utility model, when valve plate 2 was opened and is 0 ° with horizontal plane, valve plate 2 was opened and is reached maximum, valve plate 2 sealings when valve plate 2 is closed and is 90 ° with horizontal plane.The complete opening of valve plate 2 is to seal process, and valve plate 2 needs 0 °～90 ° of rotations.Because of valve plate rotation torque is transformed by hydraulic mechanism thrust, the pressure official post oil hydraulic cylinder push rod 9 in the oil hydraulic cylinder 5 moves up fast or moves down, and drives bent axle 11 rotations; The setting of bent axle 11 increases running shaft 13 torques.So the stroke of oil hydraulic cylinder push rod 9 makes bent axle 11 half-twists can make valve plate open or close, and shortens the time that valve plate opens or closes, and reaches quick-sealing and closes, seals the purpose of opening.
Be provided with eccentric stiffener in the utility model: eccentric one: the valve plate gyration center with respect to the valve plate center in axial off-centre; Eccentric two: the valve plate gyration center with respect to the valve plate center at radial disbalance; Eccentric three: valve seat conical surface center line and valve seat center line exist an angle, both angle off-centre.Because axially eccentric existence has guaranteed that sealing surface of valve plate is a complete continuous conical surface.The geometrical center of sealing face is determined easily, has reduced the manufacture difficulty of sealing surface processing.Being provided with of radial disbalance and angle off-centre can make the radius of the valve plate sealing turning radius less than the sealing surface of seat corresponding site.Thereby when closing valve plate, sealing surface of valve plate enters valve seat smoothly, does not have friction between valve plate and the valve seat, and valve seat, valve plate increase working life.The setting of three eccentric stiffeners makes valve plate running shaft both sides when vacuum is closed stressed inequality, produces the rotation torque, and sealing surface of valve plate will press in the valve seat conical surface because of the effect of rotation torque.And has a characteristic that sealability is strengthened with pressure.Guaranteed the sealability under the condition of high temperature.
In the utility model, the valve opening of valve seat is provided with the valve seat cone, and valve plate is the cone seal valve plate, has adopted stainless steel nonmetallic material compound seal ring on the sealing material structure.The seal form that the tapered face of valve plate and valve seat presses guarantees the vacuum seal performance under the condition of high temperature, has valve soft seal and the hard economic benefits and social benefits characteristic that seals.On the structure that is tightly connected, adopted the eccentric rotary seal method of valve plate multidigit, had valve plate and open, do not have friction with valve seat when closing, during vacuum sealing under the effect of atmospheric pressure sealing process strengthen, have the advantages that the sphere compression type seals.Adopted high moment of torsion coaxial rotation method driving on the linkage structure, had and open fast or the characteristics of quick closedown.On drive form, adopt hydraulic mechanism, had stable drive, compact structure characteristic of simple.On the valve plate positioning control, adopt limit switch, had the characteristics of Accurate Position Control, limit position protection.
The beneficial effects of the utility model are: stable drive, compact structure are simple.Eccentric stiffener is provided with, sealability height, long service life.The valve plate quick-sealing is closed, is sealed and open.
Description of drawings
Fig. 1 is a left view of the present utility model.
Fig. 2 is a plan view of the present utility model.
Fig. 3 is the B-B sectional drawing of Fig. 2.
Fig. 4 is a valve plate seal form structural diagrams of the present utility model.
Number in the figure: 1 is valve seat, and 2 is valve plate, and 3 is the axle head baffle plate, 4 is limit switch, and 5 is oil hydraulic cylinder, and 6 is support, 7 is flange, 8 is the valve seat cone, and 9 is the oil hydraulic cylinder push rod, and 10 is link, 11 is bent axle, 12 is the Sealing pressing plate, and 13 is running shaft, and 14 is stainless steel nonmetallic material compound seal ring.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings below by embodiment.
Embodiment 1: as Fig. 1-shown in Figure 4, this large-scale combined type vacuum main valve is made up of valve seat 1, valve plate 2, axle head baffle plate 3, limit switch 4, oil hydraulic cylinder 5, support 6, flange 7, valve seat cone 8, oil hydraulic cylinder push rod 9, link 10, bent axle 11, Sealing pressing plate 12, running shaft 13 and stainless steel nonmetallic material compound seal ring 14.Seat 1 is fixed between the pipeline by flange 7, and valve seat cone 8 is welded in the valve opening of valve seat 1.Valve plate 2 is positioned on the valve seat 1 by running shaft 13, and valve plate 2 edges are stainless steel nonmetallic material compound seal ring 14, and stainless steel nonmetallic material compound seal ring 14 is fixed on the valve plate 2 by Sealing pressing plate 12.Valve plate 2 is connected by key or pin with running shaft 13.Valve plate 2 is along the rotation of the axle center of running shaft 13, cooperates with valve seat cone 8 on the valve seat 1, and all there is axle head baffle plate 3 at running shaft 13 two ends, and axle head baffle plate 3 is individually fixed on valve seat 1 and the support 6 by the GB bolt.Support 6 by the GB bolt on valve seat 1.The driven shaft of bent axle 11 is by key and 13 concentric connections of running shaft, and the driving shaft of bent axle 11 is connected with the push rod 9 of oil hydraulic cylinder 5 by link 10.Oil hydraulic cylinder 5 passes through the GB bolt on support 6.The stroke of oil hydraulic cylinder push rod is by limit switch 4 controls, and limit switch 4 is arranged on the support 6.With between this large-scale combined type vacuum main valve installation and the vacuum pipe, play disconnection vacuum and the effect that is connected vacuum during use.When needing vacuum to disconnect in the pipeline, valve plate is closed, and valve plate is opened when needing vacuum to connect.The closing motion of opening of valve plate provides power by hydraulic drive mechanism.
Working procedure of the present utility model is as follows:
When needing vacuum communicating in the pipe-line system, oil hydraulic cylinder 5 following pressure increase, and the pressure that hydraulic oil provides promotes oil hydraulic cylinder push rod 9 and moves up.Oil hydraulic cylinder push rod 9 is connected with bent axle 11 through link 10.Bent axle 11 is converted into the straight line motion of oil hydraulic cylinder push rod 9 and rotatablely moves, because bent axle 11 and running shaft 13 are by the key location, so 13 rotations of bent axle 11 driven rotary axles.Be connected by pin or key between running shaft 13 and the valve plate 2, running shaft 13 will drive valve plate 2 and rotate synchronously, and valve plate 2 is opened, vacuum communicating.
When needing vacuum to disconnect in the pipe-line system, the pressure of oil hydraulic cylinder 5 tops increases.The pressure that hydraulic oil provides promotes oil hydraulic cylinder push rod 9 and moves down.Oil hydraulic cylinder push rod 9 is connected with bent axle 11 through link 10.Bent axle 11 is converted into the straight line motion of oil hydraulic cylinder push rod 9 and rotatablely moves, because bent axle 11 and running shaft 13 are by the key location, so 13 rotations of bent axle 11 driven rotary axles.Be connected by pin or key between running shaft 13 and the valve plate 2, running shaft 13 will drive valve plate 2 and rotate synchronously, and valve plate 2 is closed, and vacuum disconnects.
Because hydraulic oil has compressibility, thus whole open and close do not have moment impact in the closed procedure, connect coaxial rotation, no gap error between valve plate 2, running shaft 13, the bent axle 11 by key pin.So transmission is very steady.
Claims (1)
1. one kind large-scale combined type vacuum main valve, by valve seat (1), valve plate (2), axle head baffle plate (3), limit switch (4), oil hydraulic cylinder (5), support (6), flange (7), valve seat cone (8), oil hydraulic cylinder push rod (9), link (10), bent axle (11), Sealing pressing plate (12), running shaft (13) and stainless steel nonmetallic material compound seal ring (14) are formed, it is characterized in that valve seat cone (8) is fixed in the valve opening of valve seat (1), valve plate (2) is positioned on the valve seat (1) by running shaft (13), valve plate (2) is connected by key or pin with running shaft (13), and valve plate (2) can be along the axle center rotation of running shaft (13); Running shaft (13) two ends are equipped with axle head baffle plate (3), and the axle head baffle plate (3) that is positioned at running shaft (13) one ends is fixed on the valve seat (1), and the axle head baffle plate (3) that is positioned at running shaft (13) the other end is fixed on the support (6); Support (6) is fixed in valve seat (1) one side, the driven shaft of bent axle (11) is by key and concentric connection of running shaft (13), the driving shaft of bent axle (11) is connected with oil hydraulic cylinder push rod (9) by link (10), oil hydraulic cylinder (5) is fixed on the support (6), the stroke of oil hydraulic cylinder push rod (9) is by limit switch (4) control, and limit switch (4) is arranged on the support (6); Valve plate (2) edge is a stainless steel nonmetallic material compound seal ring (14), and stainless steel nonmetallic material compound seal ring (14) is fixed on the valve plate (2) by Sealing pressing plate (12); Valve seat (1) is fixed between the pipeline by flange (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202097189U CN201747944U (en) | 2010-05-27 | 2010-05-27 | Large-size compound type vacuum main valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202097189U CN201747944U (en) | 2010-05-27 | 2010-05-27 | Large-size compound type vacuum main valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747944U true CN201747944U (en) | 2011-02-16 |
Family
ID=43582622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202097189U Expired - Fee Related CN201747944U (en) | 2010-05-27 | 2010-05-27 | Large-size compound type vacuum main valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363180A (en) * | 2012-03-26 | 2013-10-23 | 哈米尔顿森德斯特兰德公司 | Butterfly valve with strut |
| CN115949761A (en) * | 2023-02-24 | 2023-04-11 | 江苏恒双自控设备制造有限公司 | Vacuum pneumatic butterfly valve |
-
2010
- 2010-05-27 CN CN2010202097189U patent/CN201747944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363180A (en) * | 2012-03-26 | 2013-10-23 | 哈米尔顿森德斯特兰德公司 | Butterfly valve with strut |
| CN115949761A (en) * | 2023-02-24 | 2023-04-11 | 江苏恒双自控设备制造有限公司 | Vacuum pneumatic butterfly valve |
| CN115949761B (en) * | 2023-02-24 | 2023-08-22 | 江苏恒双自控设备制造有限公司 | Vacuum pneumatic butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20140527 |