CN106641274A - Self-tightening sealing valve with vacuumizing function - Google Patents
Self-tightening sealing valve with vacuumizing function Download PDFInfo
- Publication number
- CN106641274A CN106641274A CN201610923054.4A CN201610923054A CN106641274A CN 106641274 A CN106641274 A CN 106641274A CN 201610923054 A CN201610923054 A CN 201610923054A CN 106641274 A CN106641274 A CN 106641274A
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- China
- Prior art keywords
- flange
- sealing
- vacuum
- self
- connecting rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a self-tightening sealing valve with a vacuumizing function. The self-tightening sealing valve comprises a sealing flange with a threaded hole formed in the center, a pressure-bearing flange, a first seal ring, a four-way connector, a second seal ring, a connecting rod and a vacuum linear coupler, wherein one end of the connecting rod is connected with the sealing flange through the threaded hole, and the other end of the connecting rod is connected with one end of the vacuum linear coupler; a first connecting flange is arranged at one end of the four-way connector, the pressure-bearing flange is connected with the four-way connector through the first connecting flange, and the second seal ring is arranged between the pressure-bearing flange and the first connecting flange; and the sealing flange and the pressure-bearing flange are paired in a concave-convex manner, and the vacuum linear coupler is adjusted to enable the connecting rod to drive the sealing flange to approach or be far away from the pressure-bearing flange. The self-tightening sealing valve is greatly reduced in size, contributes to equipment miniaturization and can adapt to special requirements of different occasions.
Description
Technical field
The present invention relates to vacuum equipment and bearing device, the control unit in gas delivery system, specially one kind can be taken out
The self-tightening sealing valve of vacuum, it is adaptable to which high-purity gas inject occasion.
Background technology
Vacuum valve is requisite gas control components in vacuum system, it is desirable to has higher air-tightness, does not pollute
Working media, and it is as far as possible little to the resistance of air-flow；High pressure valve then requires that specified operating pressure can be born, and avoids each
The leakage of the form of kind.Some occasions need first then to inject high-purity gas to container or pipeline evacuation, and it is same that this is accomplished by valve
When there is the function of vacuum sealing and high pressure sealing.
Had the existing vacuum sealing of more seriation in the market has the valve of high pressure sealing function, these valves again
Although size is less but conductance also very little for door, very unfavorable to evacuation, or the larger weight of conductance is also very big, or conductance is big
It is lightweight but can not bear high pressure.Some require that harsh occasion cannot just adopt existing valve.
In without the double beta decaying particle detectors of neutrino, working media is extremely expensive, purity requirement 0.999995, work
Make pressure 1Mpa.So the requirement to valve is good seal, leak rate is less than 1E-4PaL/s；With larger conductance to the greatest extent may be used
Impact of the elimination air of energy to working media purity；The operating pressure of 1MPa can be born.Simultaneously detector is to background radiation
The requirement of property is extremely harsh, and general valve material such as rustless steel, nickel-base alloy can not be used because radioactivity is higher, most
Well from the oxygen-free copper that radioactivity is extremely low, and the intensity of oxygen-free copper is less.
The content of the invention
In order to solve above-mentioned prior art problem, the present invention proposes that a kind of conductance is big, rated operating pressure is high, compact conformation
Self-tightening sealing valve, can be by this valve evacuation, most of valve partses can be removed after evacuation is finished.
The technical solution of the present invention is as follows：
A kind of self-tightening sealing valve of vacuum-pumping, including center have the sealing flange of screwed hole, bearing flange, first
Sealing ring, four-way connection, the second sealing ring, connecting rod, the linear shaft coupling of vacuum；
One end of the connecting rod is connected by the screwed hole with the sealing flange, and the other end is linear with the vacuum
One end of shaft coupling is connected；
One end of the four-way connection is provided with the first adpting flange, and the bearing flange is by the first adpting flange and four-way
Joint is connected, and second sealing ring is arranged between the bearing flange and the first adpting flange；
The sealing flange and the concavo-convex pairing of bearing flange, the sealing surface of two flanges is parallel to each other, first sealing ring
It is placed in the seal groove of sealing flange；
The linear shaft coupling of the vacuum is adjusted, makes connecting rod drive the sealing flange closer or far from the pressure-bearing method
It is blue.
Other three end of the four-way connection is respectively equipped with the second adpting flange, the 3rd adpting flange and the 4th connection method
It is blue.
The material of sealing flange and bearing flange can be consistent with Work container, or other admissible structural materials, close
The seal groove of envelope flange or bearing flange needs energy fixed seal ring, such as dovetail grooved seal groove, to avoid being made in valve
Sealing ring surprisingly comes off with during.
The four-way connection, the second sealing ring, connecting rod, the linear shaft coupling of vacuum are dismountable.
The principle of the present invention is as follows：
Described bearing flange one end is tightly connected with Work container, and can ensure close under the design pressure of Work container
A part for sealing property, or pressure resistant vessel, described sealing flange and the concavo-convex pairing of bearing flange, can be from when compressing
Dynamic alignment, obtains the sealing property of two kinds of operating modes of design pressure and vacuum together with described sealing ring.
In evacuation, described straight line vacuum shaft coupling drives described sealing flange and bearing flange by connecting rod
Separate, as gas passage during evacuation, when Work container reaches the vacuum of regulation, adjust straight line shaft coupling band dynamic sealing
Flange is near bearing flange and compresses, and makes sealing ring produce deformation and obtains initial sealing ability.It is situated between in Work container injection work
After matter, sealing flange is with bearing flange further towards simultaneously further compresses seal, and the pressure that sealing flange is subject to is most of
Be delivered to bearing flange and will not conquassation sealing ring, and sealing flange does not need extra force structure, sets so as to simplify
Meter.Sealing flange needs strict control with the design of bearing flange, manufacturing tolerance, to ensure assembly precision, so as to obtain reliability
Sealing property and protect sealing ring.
Compared with prior art, the invention has the beneficial effects as follows：The size of valve is significantly reduced, contributes to the little of equipment
Type；The range of choice of material therefor extensively, can use the specific demand of different occasions.
Description of the drawings
Fig. 1 is the structural representation of the self-tightening sealing valve of vacuum-pumping of the present invention；
Fig. 2 is fundamental diagram of the self-tightening sealing valve of vacuum-pumping of the present invention in evacuation；
Fig. 3 is the partial resolution figure of the self-tightening sealing valve of vacuum-pumping of the present invention；
Fig. 4 is the working state schematic representation of the self-tightening sealing valve of vacuum-pumping of the present invention.
Specific embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can be defined by the claims and
Cover multitude of different ways to implement.
Please referring initially to Fig. 1, Fig. 1 is the structural representation of the self-tightening sealing valve of vacuum-pumping of the present invention, as illustrated, bag
Include sealing flange 1, bearing flange 2, the first sealing ring 3, four-way connection 5, its four end be connected to the first adpting flange 4,
Two adpting flanges 6, the 3rd adpting flange 9 and the 4th adpting flange 11, the first screw 13 is fixed to bearing flange first flange 4
2, the second sealing ring 7 is provided between bearing flange 2 and flange 4, there is screwed hole at the center of sealing flange 1, connects with the screw thread of connecting rod 8
Connect, the connecting rod on the linear shaft coupling 10 of vacuum is connected by the first screw 12 with connecting rod 8, in sealing flange 1 and pressure-bearing method
When orchid is in air-tight state, the first screw 12 can be tightened or dismantled by the centre bore of second flange 6, the linear shaft coupling 10 of vacuum
Sealing flange 1, the side-to-side movement of connecting rod 8, the 3rd flange 9 can be driven to be connected with vacuum pump, second flange 6 can be by evacuation
Blind plate sealing connects vacuometer.
After the internal unit of bearing flange 2 installs and carries out other preparations, by Fig. 1 union pieces and pipeline,
The linear shaft coupling 10 of vacuum is adjusted to the left, then the sealing ring 3 of sealing flange 1 and first away from bearing flange 2 until ultimate range, this
When bearing flange 2 communicate with operating pressure vessel space, valve system has larger conductance, beneficial to evacuation, such as institute Fig. 2
It is shown.
Through a period of time evacuation operation and or the vacuum of regulation after, close vacuum pump, vacuum linearly joins
Axle device 10 is adjusted to the right, drives sealing flange 1 near bearing flange 2, until compressing sealing ring 3, returns to state shown in Fig. 1.
Wherein the first sealing ring 3 is arranged in the swallow-tail form seal groove of sealing flange 1, and sealing flange 1 is coaxial near bearing flange 2
, its sealing surface is parallel.Now valve obtains preliminary sealing, then a small amount of gas is injected into bearing flange 2, while closely
Note vacuometer reading, if vacuometer is without significant change, show that valve obtains sealability.Then slowly to bearing flange
Injection gases in 2, while adjusting the linear shaft coupling 10 of vacuum to the right repeatedly, it is ensured that sealing flange 1 compresses the near bearing flange 2
One sealing ring 3, until reaching rated pressure in container.
So far, equipment or the part being connected with second flange 6, the 3rd flange 9 can be dismantled, then removes the first screw
12nd, the second screw 13 can just remove four-way connection 5, the linear shaft coupling 10 of the second sealing ring 7, vacuum, as institute Fig. 3 shows, most
Connecting rod 8 is carefully pulled down afterwards, as institute Fig. 4 shows, you can start follow-up work.
Present invention may apply to different high-purity gas, greatly, simple structure, oil-free is pollution-free for the scope of application.For corruption
Corrosion gas, sealing flange, bearing flange, the first sealing ring need to select corrosion resistant material.
It should be noted last that, above example is only unrestricted to illustrate technical scheme, although ginseng
The present invention has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to invention
Technical scheme is modified or equivalent, and without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (4)
1. the self-tightening sealing valve of a kind of vacuum-pumping, it is characterised in that including center have screwed hole sealing flange (1),
Bearing flange (2), the first sealing ring (3), four-way connection (5), the second sealing ring (7), connecting rod (8), the linear shaft coupling of vacuum
(10)；
One end of the connecting rod (8) is connected by the screwed hole with the sealing flange (1), the other end and the vacuum line
Property shaft coupling (10) one end be connected；
One end of the four-way connection (5) is provided with the first adpting flange (4), and the bearing flange (2) is by the first adpting flange
(4) it is connected with four-way connection (5), second sealing ring (7) is arranged on the bearing flange (2) and the first adpting flange (4)
Between；
The sealing flange (1) and the concavo-convex pairing of bearing flange (2), the sealing surface of two flanges is parallel to each other, first sealing
Circle (3) is placed in the seal groove of sealing flange (1)；
The linear shaft coupling of the vacuum (11) is adjusted, makes connecting rod (8) drive the sealing flange (1) to hold closer or far from described
Pressure flange (2).
2. the self-tightening sealing valve of vacuum-pumping according to claim 1, it is characterised in that the four-way connection (5)
Other three end is respectively equipped with the second adpting flange (6), the 3rd adpting flange (9) and the 4th adpting flange (11).
3. the self-tightening sealing valve of vacuum-pumping according to claim 1 and 2, it is characterised in that first sealing ring
(3) it is placed in the dove-tail form seal groove of sealing flange (1) sealing surface, or other ensure sealing flange (1) in any appearance
In the seal groove that the first sealing ring (3) will not fall off during state.
4. the self-tightening sealing valve of vacuum-pumping according to claim 1 and 2, it is characterised in that the four-way connection
(5), the second sealing ring (7), connecting rod (8), the linear shaft coupling of vacuum (10) are dismountable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610923054.4A CN106641274B (en) | 2016-10-29 | 2016-10-29 | The self-tightening sealing valve of vacuum-pumping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610923054.4A CN106641274B (en) | 2016-10-29 | 2016-10-29 | The self-tightening sealing valve of vacuum-pumping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106641274A true CN106641274A (en) | 2017-05-10 |
| CN106641274B CN106641274B (en) | 2019-09-20 |
Family
ID=58856983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610923054.4A Active CN106641274B (en) | 2016-10-29 | 2016-10-29 | The self-tightening sealing valve of vacuum-pumping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641274B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1029361A (en) * | 1963-08-30 | 1966-05-11 | Commissariat Energie Atomique | Fluid tight closure device for a vacuum circuit conduit |
| DE4023845C1 (en) * | 1990-07-27 | 1992-04-02 | Vat Holding Ag, Haag, Ch | Shut-off valve for semiconductor producinvacuum equipment - has valve disc pressed against valve seal by actuator and seal between disc and seat |
| CN2132894Y (en) * | 1992-06-20 | 1993-05-12 | 辽宁省能源研究所 | Self-boosting pressure regulating relve |
| CN201137701Y (en) * | 2007-09-24 | 2008-10-22 | 新乡特种风机厂 | Vacuum pumping valve and its electric radiator |
| CN201297398Y (en) * | 2008-10-09 | 2009-08-26 | 中国航空工业第六一八研究所 | Hydraulic gate valve conical surface sealing structure |
| CN201680060U (en) * | 2010-03-10 | 2010-12-22 | 中国科学院等离子体物理研究所 | Separating type evacuation valve |
| CN202852169U (en) * | 2012-08-14 | 2013-04-03 | 山东鑫昊特种装备股份有限公司 | Vacuum pumping valve capable of detecting vacuum degree conveniently |
| CN204437700U (en) * | 2015-01-26 | 2015-07-01 | 江苏华天能源装备有限公司 | A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve |
| CN204692613U (en) * | 2015-05-20 | 2015-10-07 | 上海皮尔博格有色零部件有限公司 | Vacuum pumping valve |
| CN206175672U (en) * | 2016-10-29 | 2017-05-17 | 上海交通大学 | But self tightening sealing valve of evacuation |
-
2016
- 2016-10-29 CN CN201610923054.4A patent/CN106641274B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1029361A (en) * | 1963-08-30 | 1966-05-11 | Commissariat Energie Atomique | Fluid tight closure device for a vacuum circuit conduit |
| DE4023845C1 (en) * | 1990-07-27 | 1992-04-02 | Vat Holding Ag, Haag, Ch | Shut-off valve for semiconductor producinvacuum equipment - has valve disc pressed against valve seal by actuator and seal between disc and seat |
| CN2132894Y (en) * | 1992-06-20 | 1993-05-12 | 辽宁省能源研究所 | Self-boosting pressure regulating relve |
| CN201137701Y (en) * | 2007-09-24 | 2008-10-22 | 新乡特种风机厂 | Vacuum pumping valve and its electric radiator |
| CN201297398Y (en) * | 2008-10-09 | 2009-08-26 | 中国航空工业第六一八研究所 | Hydraulic gate valve conical surface sealing structure |
| CN201680060U (en) * | 2010-03-10 | 2010-12-22 | 中国科学院等离子体物理研究所 | Separating type evacuation valve |
| CN202852169U (en) * | 2012-08-14 | 2013-04-03 | 山东鑫昊特种装备股份有限公司 | Vacuum pumping valve capable of detecting vacuum degree conveniently |
| CN204437700U (en) * | 2015-01-26 | 2015-07-01 | 江苏华天能源装备有限公司 | A kind of vacuumizing of vacuum insulation deep cooling pressurized container draws valve |
| CN204692613U (en) * | 2015-05-20 | 2015-10-07 | 上海皮尔博格有色零部件有限公司 | Vacuum pumping valve |
| CN206175672U (en) * | 2016-10-29 | 2017-05-17 | 上海交通大学 | But self tightening sealing valve of evacuation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106641274B (en) | 2019-09-20 |
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