CN206409654U - A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system - Google Patents
A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system Download PDFInfo
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- CN206409654U CN206409654U CN201720071797.3U CN201720071797U CN206409654U CN 206409654 U CN206409654 U CN 206409654U CN 201720071797 U CN201720071797 U CN 201720071797U CN 206409654 U CN206409654 U CN 206409654U
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Abstract
The utility model discloses a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system, it includes left valve barrel（1）, right valve barrel（2）, be arranged at left valve barrel（1）And right valve barrel（2）Between center valve body（3）, left valve barrel（1）, right valve barrel（2）And center valve body（3）Composition top carries opening（4）Housing, connecting rod（7）Another be fixed with valve plate（8）, valve plate（8）Downward through the opening of housing（4）Set, O-ring seal is respectively and fixedly provided with the medial surface of described left and right valve body（19）, O-ring seal（19）The coupled valve body medial surface in side between be formed with toroidal cavity（9）, offer and toroidal cavity in left and right valve body（9）The inlet channel being connected（11）.The beneficial effects of the utility model are：Adapting to heavy caliber and fast opening and closing, high vacuum seal, long-life injection wind-tunnel use environment is used for large high-vacuum system.
Description
Technical field
The utility model is related to the technical field of vacuum valve structure in wind tunnel experiment, particularly a kind of to be used for large-scale Gao Zhen
The heavy caliber pendulum model vacuum valve of empty set system.
Background technology
Wind-tunnel is artificially generated and control air-flow, with the flowing of simulated flight device or object ambient gas, and can measure gas
Flow the effect to object and observe a kind of pipe-like experimental facilities of physical phenomenon, it is that progress aerodynamic experiment is most normal
With, maximally effective instrument.Hypersonic wind tunnel then can be largely taken into account required for the environment of supersonic flight, dynamic pressure
Time requirement, can simulate the various combination of stagnation pressure parameter, to meet supersonic aircraft flying ring in different flying heights
The basic demand in border.Hypersonic wind tunnel is main by the air supply system being sequentially arranged from left to right, burning heater, jet pipe, examination
Test section, diffuser, Vacuum ball valve, Vacuum Spherical Tank, vacuum pumping system composition.
Wind tunnel experiment is also an indispensable part in aerospace craft development work.It is not only in aviation
Played an important role with the research and development of aerospace engineering, with the development of industrial aerodynamics, in communications and transportation, house
Also increasingly it is widely applied in the departments such as building, wind energy utilization and environmental protection.With national energy-saving emission reduction policy
Put into effect, large quantities of high energy consumptions, the vacuum equipment of high pollution will be eliminated, and low energy consumption, the vacuum equipment of low stain will occur
And it is replaced, while this equipment is also following development trend.Vacuum tank bulky during wind tunnel test with hole body phase even,
Have up to 7500 cubic metres even more than 10000 cubic metres, and have strict control to pumpdown time, it is desirable to true in 1 hour
Pressure in slack tank is extracted into 200Pa from atmospheric pressure, when doing experiment, it is desirable to which the inlet pressure of vacuum system is 100-5000Pa
When, the speed of exhaust of vacuum system is no less than 51000L/S (mass flowrate is no less than 540 Grams Per Seconds)；And in different pressures
Under power state, there are different requirements to the speed of exhaust of vacuum system, i.e., when the pressure change in wind tunnel body, vacuum system
The speed of exhaust also must immediately follow and change, it is big and have certain intelligence that this means that this vacuum system has to pumping speed,
Possesses adjust automatically energy.
, it is necessary to a kind of heavy caliber high vacuum valve of fast opening and closing in injection wind-tunnel.The existing valve for vacuum
Mainly based on push-pull valve, push-pull valve plays a part of exhaust, by the air-extraction function of variable pump by gas in wind-tunnel through plate
Valve is discharged, to realize the pressure for adjusting wind-tunnel at any time, so as to adapt to different operating modes.But the valve of push-pull valve is in action process
There is friction with sealing surface and extrude in O-ring seal, O-ring seal easily comes off in motion extrusion process, it is used the longevity
Life reduction, ultimately results in poorly sealed close when follow-up valve is closed, tunnel pressure change, influences experimental result.In addition, push-pull valve
Because the stroke of plate is especially long, its general opening and closing time is very long, the vacuum valves of both structure types can not meet quickly,
The process conditions requirement of high vacuum seal and longevity.
Utility model content
The purpose of this utility model be to overcome the shortcoming of prior art there is provided a kind of compact conformation, adapt to heavy caliber and
Fast opening and closing, high vacuum seal, the heavy caliber pendulum for large high-vacuum system of long-life injection wind-tunnel use environment
Formula vacuum valve.
The purpose of this utility model is achieved through the following technical solutions：A kind of heavy caliber for large high-vacuum system
Pendulum model vacuum valve, it includes left valve barrel, right valve barrel, is arranged at center valve body between left valve barrel and right valve barrel, left valve barrel with
Right valve barrel is symmetrical arranged on center valve body, and left valve barrel, right valve barrel and center valve body composition top carry the housing of opening, shell
It is provided with the top of body on closed case, closed case and is rotatably installed with drive shaft, is provided with drive shaft positioned at closed case
Interior connecting rod, the another of connecting rod is fixed with valve plate, and valve plate is set downward through the opening of housing, described left and right valve body it is interior
It is respectively and fixedly provided with O-ring seal on side, annular sky is formed between the coupled valve body medial surface in the side of O-ring seal
Chamber, the opposite side of O-ring seal, which is provided with annular protrusion, left and right valve body, offers the air inlet being connected with toroidal cavity
Be respectively arranged with lateral surface on passage, described left and right valve body with the opposed blast pipe of O-ring seal and air inlet pipe,
Blast pipe and air inlet pipe are connected with housing.
Described left and right valve body and center valve body are through bolt connection.
The top surface of described center valve body is circular arc.
The end of described inlet channel is connected with blanket gas joint.
On the medial surface of described left and right valve body, arc-shaped guide rail is provided with below O-ring seal, it is described
Valve plate both ends of the surface are engaged with arc-shaped guide rail respectively.
Described O-ring seal is fixed on the valve body medial surface being connected with O-ring seal through trim ring.
Described trim ring is fixed through screw.
The utility model has advantages below：The utility model adapts to heavy caliber and fast opening and closing, high vacuum seal, longevity
The injection wind-tunnel use environment of life be used for large high-vacuum system.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is Fig. 1 B-B sectional views；
Fig. 4 is Fig. 1 C-C sectional views；
Fig. 5 is the scheme of installation of the coupled O-ring seal of right valve barrel；
Fig. 6 is the structural representation of valve plate；
Fig. 7 is Fig. 2 I portions partial enlarged view；
Fig. 8 is Fig. 2 II portions partial enlarged view；
Fig. 9 is left valve barrel and the scheme of installation of O-ring seal；
In figure, 1- left valve barrels, 2- right valve barrels, 3- center valve bodies, 4- openings, 5- closed cases, 6- drive shafts, 7- connecting rods,
8- valve plates, 9- toroidal cavities, 10- annular protrusions, 11- inlet channels, 12- blast pipes, 13- air inlet pipe, 14- bolts, 15- sealings
Gas joint, 16- arc-shaped guide rails, 17- trim rings, 18- screws, 19- O-ring seals.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, protection domain of the present utility model be not limited to
It is lower described：
As shown in Fig. 1 ~ 9, a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system, it includes left valve barrel
1st, right valve barrel 2, be arranged at center valve body 3 between left valve barrel 1 and right valve barrel 2, left valve barrel 1 and right valve barrel 2 are on 3 pairs of center valve body
Title is set, and left valve barrel 1, the housing of right valve barrel 2 and the composition of center valve body 3 top with opening 4, is provided with the top of housing close
Close to be rotatably installed with cabinet 5, closed case 5 in drive shaft 6, drive shaft 6 and the connecting rod 7 in closed case 5 is installed, even
The another of bar 7 is fixed with valve plate 8, and valve plate 8 is set downward through the opening 4 of housing, on the medial surface of described left and right valve body
It is fixed with O-ring seal 19, toroidal cavity 9 is formed between the coupled valve body medial surface in the side of O-ring seal 19,
There is no insufflation gas under original state in toroidal cavity 9, the opposite side of O-ring seal 19 is provided with annular protrusion 10, left and right
The inlet channel 11 being connected with toroidal cavity 9 is offered in valve body, the end of inlet channel 11 is connected with blanket gas joint
15.It is respectively arranged with lateral surface on described left and right valve body and the opposed blast pipe of O-ring seal 19 12 and air inlet
Pipe 13, blast pipe 12 and air inlet pipe 13 are connected with housing.Reinforcement is provided with blast pipe 12 and air inlet pipe 13.
Described left and right valve body and center valve body 3 is connected through bolt 14, and bolt 14 is by left valve barrel 1, right valve barrel 2 and centre
The connection of valve body 3 is integral.
The top surface of described center valve body 3 is circular arc；On the medial surface of described left and right valve body, positioned at ring packing
The lower section of circle 19 is provided with arc-shaped guide rail 16, and the described both ends of the surface of valve plate 8 are engaged with arc-shaped guide rail 16 respectively, therefore when control
When drive shaft 6 processed is rotated, the drive valve plate 8 of 6 drivening rod of drive shaft 7 is rotated, and the bottom of valve plate 8 is along center valve body 3 and two
The passage of the individual formation of arc-shaped guide rail 16 is slided.
Described O-ring seal 19 is fixed on the valve body medial surface being connected with O-ring seal 19 through trim ring 17；Trim ring
17 fix through screw 18；The described the blowing pressure of O-ring seal 19 can be adjusted according to the sealed vacuum level requirements of needs,
Accomplish that seal pressure is constant adjustable.
As shown in Fig. 1 ~ 8, described heavy caliber pendulum model vacuum valve is used for the encapsulating method of large high-vacuum system, it
Comprise the following steps：
S1, before use, air inlet pipe 13 is connected with wind-tunnel, blast pipe 12 is connected with variable pump；
S2, valve unlatching, when being exhausted, rotate counterclockwise drive shaft 6, drive shaft 6 drive valve plate 8 sail out of into
Tracheae 13, variable pump is evacuated to gas in wind-tunnel, and gas is sequentially last from variable pump row through air inlet pipe 13, housing, blast pipe 12
Go out, it is achieved thereby that the unlatching of valve, realizes the pressure of quick adjustment wind-tunnel, can adapt to different wind tunnel experiment operating modes；
S3, valve closing, after exhaust terminates, rotate clockwise drive shaft 6, and drive shaft 6 drives valve plate 8 towards entering
Tracheae 13 is moved, and after valve plate 8 rotates 90 °, and when being completely between two O-ring seals 19, passes through blanket gas joint 15
The sealing gas with pressure is passed through, sealing gas enters in toroidal cavity 9 through inlet channel 11, and O-ring seal 19 is under pneumatic pressure
Expand and the extruding that is in contact with the sealing surface on valve plate 8, it is achieved thereby that the closing of valve, and seal tighter.Therefore
There is the phenomenon of friction and extruding with sealing surface compared to the O-ring seal of traditional push-pull valve valve in the swing type vacuum valve,
The O-ring seal in motion extrusion process is caused easily to come off, the service life of the pendulum-type vacuum valve is longer, and can realize
The opening and closing of valve, operating efficiency is higher.
, when not inflated into toroidal cavity 9, O-ring seal 19 do not contacted with the sealing surface of valve plate 8 or only contact does not have
There is mutual extruding.
Claims (7)
1. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system, it is characterised in that：It includes left valve barrel
（1）, right valve barrel（2）, be arranged at left valve barrel（1）And right valve barrel（2）Between center valve body（3）, left valve barrel（1）With right valve barrel（2）
On center valve body（3）It is symmetrical arranged, and left valve barrel（1）, right valve barrel（2）And center valve body（3）Composition top carries opening（4）
Housing, be provided with closed case at the top of housing（5）, closed case（5）On be rotatably installed with drive shaft（6）, drive shaft（6）
On be provided with positioned at closed case（5）Interior connecting rod（7）, connecting rod（7）Another be fixed with valve plate（8）, valve plate（8）Downward through
The opening of housing（4）Set, O-ring seal is respectively and fixedly provided with the medial surface of described left and right valve body（19）, O-ring seal
（19）The coupled valve body medial surface in side between be formed with toroidal cavity（9）, O-ring seal（19）Opposite side set
It is equipped with annular protrusion（10）, offer and toroidal cavity in left and right valve body（9）The inlet channel being connected（11）, it is described
It is respectively arranged with lateral surface on left and right valve body and O-ring seal（19）Opposed blast pipe（12）And air inlet pipe
（13）, blast pipe（12）And air inlet pipe（13）Connected with housing.
2. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 1, its feature
It is：Described left and right valve body and center valve body（3）Through bolt（14）Connection.
3. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 1, its feature
It is：Described center valve body（3）Top surface be circular arc.
4. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 1, its feature
It is：Described inlet channel（11）End be connected with blanket gas joint（15）.
5. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 1, its feature
It is：On the medial surface of described left and right valve body, positioned at O-ring seal（19）Lower section be provided with arc-shaped guide rail（16）,
Described valve plate（8）Both ends of the surface respectively with arc-shaped guide rail（16）It is engaged.
6. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 1, its feature
It is：Described O-ring seal（19）Through trim ring（17）It is fixed on and O-ring seal（19）On connected valve body medial surface.
7. a kind of heavy caliber pendulum model vacuum valve for large high-vacuum system according to claim 6, its feature
It is：Described trim ring（17）Through screw（18）It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071797.3U CN206409654U (en) | 2017-01-20 | 2017-01-20 | A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071797.3U CN206409654U (en) | 2017-01-20 | 2017-01-20 | A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206409654U true CN206409654U (en) | 2017-08-15 |
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ID=59556117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720071797.3U Active CN206409654U (en) | 2017-01-20 | 2017-01-20 | A kind of heavy caliber pendulum model vacuum valve for large high-vacuum system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206409654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704614A (en) * | 2017-01-20 | 2017-05-24 | 成都华科阀门制造有限公司 | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve |
| CN112112992A (en) * | 2019-06-20 | 2020-12-22 | 株式会社爱发科 | Gate valve |
-
2017
- 2017-01-20 CN CN201720071797.3U patent/CN206409654U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704614A (en) * | 2017-01-20 | 2017-05-24 | 成都华科阀门制造有限公司 | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve |
| CN112112992A (en) * | 2019-06-20 | 2020-12-22 | 株式会社爱发科 | Gate valve |
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