CN106704614A - Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve - Google Patents
Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve Download PDFInfo
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- CN106704614A CN106704614A CN201710042846.5A CN201710042846A CN106704614A CN 106704614 A CN106704614 A CN 106704614A CN 201710042846 A CN201710042846 A CN 201710042846A CN 106704614 A CN106704614 A CN 106704614A
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- valve
- valve body
- ring seal
- vacuum system
- caliber
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0218—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with only one sealing face
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/10—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a large-caliber pendulum type vacuum valve for a large-scale high vacuum system. The large-caliber pendulum type vacuum valve comprises a left valve body (1), a right valve body (2) and a middle valve body (3) arranged between the left valve body (1) and the right valve body (2). The left valve body (1), the right valve body (2) and the middle valve body (3) form a shell, and an opening (4) is formed in the top of the shell. The other end of a connection rod (7) is fixedly connected with a valve plate (8), and the valve plate (8) downwards penetrates through the opening (4) of the shell. The inner side face of the left valve body and the inner side face of the right valve body are fixedly provided with annular sealing rings (19). An annular cavity (9) is formed between one side of each annular sealing ring (19) and the inner side face of the valve body connected with the annular sealing ring (19). The left valve body and the right valve body are each internally provided with an air inlet channel (11) communicating with the annular cavities (9). The large-caliber pendulum type vacuum valve has the beneficial effects of being large in caliber, fast in opening and closing, capable of achieving high vacuum sealing and long in service life, applicable to ejection wind tunnels and suitable for the large-scale high vacuum system.
Description
Technical field
It is particularly a kind of to be used for large high-vacuum system the present invention relates to the technical field of vacuum valve structure in wind tunnel experiment
The heavy caliber pendulum model vacuum valve and encapsulating method of 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
A kind of pipe-like experimental facilities to the effect of object and observation physical phenomenon is flowed, it is that to carry out aerodynamic experiment most normal
With, maximally effective instrument.Hypersonic wind tunnel then can be largely taken into account required for environment, the dynamic pressure of supersonic flight
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.Main air supply system, burning heater, jet pipe, the examination by being sequentially arranged from left to right of hypersonic wind tunnel
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 Power 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 replace it, 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 and then change immediately, 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 adjusting at any time the pressure of wind-tunnel, so as to adapt to different operating modes.But the valve of push-pull valve is in action process
There is friction and extrude in O-ring seal, O-ring seal easily comes off in extrusion process is moved, and it is used the longevity with sealing surface
Life is reduced, and ultimately results in poorly sealed close during follow-up valve closing, tunnel pressure change, influences experimental result.Additionally, push-pull valve
Because the stroke of plate is especially long, general its opening and closing time is very long, the vacuum valve of both structure types can not meet quickly,
The process conditions requirement of high vacuum seal and longevity.
The content of the invention
Shortcoming it is an object of the invention to overcome prior art, there is provided a kind of compact conformation, adapt to heavy caliber and quick
Keying, high vacuum seal, long-life injection wind-tunnel use environment the heavy caliber pendulum model for large high-vacuum system it is true
Empty valve and encapsulating method.
The purpose of the present invention is achieved through the following technical solutions：A kind of heavy caliber pendulum for large high-vacuum system
Formula 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 and right valve
Body is symmetrical arranged on center valve body, and housing of left valve barrel, right valve barrel and center valve body the composition top with opening, housing
Top is provided with closed case, and drive shaft is rotatably installed with closed case, is provided with closed case in drive shaft
Connecting rod, the another of connecting rod is fixed with valve plate, and valve plate is set downward through the opening of housing, the medial surface of described left and right valve body
On be respectively and fixedly provided with O-ring seal, be formed with toroidal cavity between the coupled valve body medial surface in the side of O-ring seal,
The opposite side of O-ring seal is provided with annular protrusion, the air inlet being connected with toroidal cavity is offered in left and right valve body and is led to
Road, is respectively arranged with and the opposed blast pipe of O-ring seal and air inlet pipe, row on the lateral surface on described left and right valve body
Tracheae 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.
Described heavy caliber pendulum model vacuum valve is used for the encapsulating method of large high-vacuum system, and it includes following step
Suddenly：
S1, using preceding, air inlet pipe is connected with wind-tunnel, blast pipe is connected with variable pump；
The unlatching of S2, valve, when being exhausted, rotates counterclockwise drive shaft, and drive shaft drives valve plate to sail out of air inlet pipe, becomes
Amount pump is evacuated to gas in wind-tunnel, and gas is sequentially finally discharged through air inlet pipe, housing, blast pipe from variable pump, 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；
The closing of S3, valve, after exhaust terminates, rotates clockwise drive shaft, and drive shaft drives valve plate to be transported towards air inlet pipe
It is dynamic, after valve plate rotates 90 °, and when being completely between two O-ring seals, it is passed through with pressure by blanket gas joint
Sealing gas, sealing gas through inlet channel enter toroidal cavity in, O-ring seal expand under pneumatic pressure and with valve plate on
Sealing surface is in contact extruding, it is achieved thereby that the closing of valve, and seal tighter；
S4, when not to being inflated in toroidal cavity, O-ring seal is not contacted with sealing surface of valve plate or only contacted without mutual
Extruding.
The present invention has advantages below：The present invention adapts to heavy caliber and fast opening and closing, high vacuum seal, long-life injection
Wind-tunnel use environment for large high-vacuum system.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the C-C sectional views of Fig. 1；
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 the I portions partial enlarged view of Fig. 2；
Fig. 8 is the II portions partial enlarged view of Fig. 2；
Fig. 9 is the scheme of installation of left valve barrel and 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- valves
Plate, 9- toroidal cavities, 10- annular protrusions, 11- inlet channels, 12- blast pipes, 13- air inlet pipe, 14- bolts, 15- blanket gas connects
Head, 16- arc-shaped guide rails, 17- trim rings, 18- screws, 19- O-ring seals.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
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 1, the right side
Valve body 2, center valve body 3 between left valve barrel 1 and right valve barrel 2 is arranged at, left valve barrel 1 symmetrically sets with right valve barrel 2 on center valve body 3
Put, and housing of left valve barrel 1, right valve barrel 2 and center valve body 3 the composition top with opening 4, closed machine is provided with the top of housing
Case 5, is rotatably installed with drive shaft 6 on closed case 5, the connecting rod 7 in closed case 5, connecting rod 7 are provided with drive shaft 6
It is another be fixed with valve plate 8, valve plate 8 is set downward through the opening 4 of housing, solid on the medial surface of described left and right valve body
Surely there is an O-ring seal 19, be formed with toroidal cavity 9 between the coupled valve body medial surface in the side of O-ring seal 19, just
The opposite side for not having insufflation gas, O-ring seal 19 under beginning state in toroidal cavity 9 is provided with annular protrusion 10, left and right valve
The inlet channel 11 being connected with toroidal cavity 9 is offered in vivo, 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 12 of O-ring seal 19 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
It is overall that valve body 3 is connected as one.
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 processed 6 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 that individual arc-shaped guide rail 16 is formed 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 vacuum level requirements for needing to seal,
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, using preceding, air inlet pipe 13 is connected with wind-tunnel, blast pipe 12 is connected with variable pump；
The unlatching of S2, valve, when being exhausted, rotates counterclockwise drive shaft 6, and drive shaft 6 drives valve plate 8 to sail out of air inlet pipe
13, variable pump is evacuated to gas in wind-tunnel, and gas is sequentially finally discharged through air inlet pipe 13, housing, blast pipe 12 from variable pump, from
And the unlatching of valve is realized, and the pressure of quick adjustment wind-tunnel is realized, can adapt to different wind tunnel experiment operating modes；
The closing of S3, valve, after exhaust terminates, rotates clockwise drive shaft 6, and drive shaft 6 drives valve plate 8 towards air inlet pipe
13 motions, after valve plate 8 rotates 90 °, and when being completely between two O-ring seals 19, are passed through by blanket gas joint 15
Sealing gas with pressure, sealing gas enter in toroidal cavity 9 through inlet channel 11, and O-ring seal 19 expands under pneumatic pressure
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 the pendulum
There is the phenomenon of friction and extruding compared to the O-ring seal of traditional push-pull valve valve in dynamic formula vacuum valve, cause with sealing surface
O-ring seal easily comes off in extrusion process is moved, and the service life of the pendulum-type vacuum valve is longer, and can realize valve
Opening and closing, operating efficiency is higher.
, when not to being inflated in 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 mutually extruding.
Claims (8)
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, closed case is provided with 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）, offered 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.
8. the heavy caliber pendulum model vacuum valve according to any one in claim 1 ~ 7 is used for large high-vacuum system
Encapsulating method, it is characterised in that：It is comprised the following steps：
S1, using preceding, by air inlet pipe（13）Connected with wind-tunnel, by blast pipe（12）Connected with variable pump；
The unlatching of S2, valve, when being exhausted, makes drive shaft（6）Rotate counterclockwise, drive shaft（6）Drive valve plate（8）Sail out of
Air inlet pipe（13）, variable pump is evacuated to gas in wind-tunnel, and gas is sequentially through air inlet pipe（13）, housing, blast pipe（12）It is last from
Variable pump is discharged, it is achieved thereby that the unlatching of valve, realizes the pressure of quick adjustment wind-tunnel, can adapt to different wind tunnel experiment works
Condition；
The closing of S3, valve, after exhaust terminates, makes drive shaft（6）Rotate clockwise, drive shaft（6）Drive valve plate（8）Direction
Air inlet pipe（13）Motion, works as valve plate（8）After rotating 90 °, and it is completely in two O-ring seals（19）Between when, by sealing
Gas joint（15）The sealing gas with pressure are passed through, sealing gas are through inlet channel（11）Into toroidal cavity（9）Interior, annular is close
Seal（19）Expand under pneumatic pressure and and valve plate（8）On sealing surface be in contact extruding, it is achieved thereby that the closing of valve, and
Sealing is tighter；
S4, when not to toroidal cavity（9）During interior inflation, O-ring seal（19）With valve plate（8）Sealing surface is not contacted or only connect
Touch and do not extrude mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042846.5A CN106704614A (en) | 2017-01-20 | 2017-01-20 | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042846.5A CN106704614A (en) | 2017-01-20 | 2017-01-20 | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704614A true CN106704614A (en) | 2017-05-24 |
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ID=58908842
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042846.5A Pending CN106704614A (en) | 2017-01-20 | 2017-01-20 | Large-caliber pendulum type vacuum valve for large-scale high vacuum system and sealing method of large-caliber pendulum type vacuum valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN106704614A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799785A (en) * | 2017-06-30 | 2020-02-14 | Vat控股公司 | Vacuum valve with inertial sensor |
| CN112109745A (en) * | 2019-06-19 | 2020-12-22 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Gate valve capable of realizing sealing by utilizing air pressure of cavity and vacuum pipeline with gate valve |
| CN113153086A (en) * | 2020-01-07 | 2021-07-23 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Inflatable seal gate valve and vacuum pipeline with same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799785A (en) * | 2017-06-30 | 2020-02-14 | Vat控股公司 | Vacuum valve with inertial sensor |
| CN110799785B (en) * | 2017-06-30 | 2022-01-18 | Vat控股公司 | Vacuum valve with inertial sensor |
| US11313491B2 (en) | 2017-06-30 | 2022-04-26 | Vat Holding Ag | Vacuum valve with inertial sensor |
| CN112109745A (en) * | 2019-06-19 | 2020-12-22 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Gate valve capable of realizing sealing by utilizing air pressure of cavity and vacuum pipeline with gate valve |
| CN113153086A (en) * | 2020-01-07 | 2021-07-23 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Inflatable seal gate valve and vacuum pipeline with same |
| CN113153086B (en) * | 2020-01-07 | 2023-01-17 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Inflatable seal gate valve and vacuum pipeline with same |
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