CN108302205A - A kind of air heave type sealing - Google Patents
A kind of air heave type sealing Download PDFInfo
- Publication number
- CN108302205A CN108302205A CN201810098186.7A CN201810098186A CN108302205A CN 108302205 A CN108302205 A CN 108302205A CN 201810098186 A CN201810098186 A CN 201810098186A CN 108302205 A CN108302205 A CN 108302205A
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- CN
- China
- Prior art keywords
- gas source
- sealing ring
- sealing
- gas
- seal groove
- Prior art date
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to a kind of air heave type sealings in a kind of vacuum leak hunting equipment, including seal nipple, sealing ring, the seal nipple is equipped with seal groove, the sealing ring is fixed in seal groove, and cavity is formed between seal groove, and the cavity is connected to gas ducting, the gas ducting is connected to gas source pipe, discharge duct respectively, the discharge duct is equipped with drain tap, and the gas source pipe is equipped with air intake valve, and gas source pipe is connect with compressed gas source.Sealing ring of the present invention and effective band is formed between sealing workpiece, reach good sealing effect, and extend the service life of sealing ring.
Description
Technical field
The invention belongs to leak hunting technology fields, and in particular to the air heave type sealing in a kind of leak test plant.
Background technology
Vacuum equipment needs to work under vacuum, it is desirable that at work, air cannot leak into working cavity, otherwise give birth to
Production cannot carry out, or generate substandard products, wasting manpower and material resources.In addition, the container equipped with liquid or gas is (such as：Hydraulic pressure gas cylinder, oxygen
Gas cylinder etc.), it is desirable that there are in the case of pressure difference, cannot have gas or liquid to leak out inside and outside container.
Therefore, these products required to leakproofness or equipment use before being taken into use it is necessary to first hunt leak
In also periodically to carry out leak detection inspection.
The seal nipple of leak test plant need to workpiece Butt sealing, since workpiece inside cavity has been filled with the gas of certain pressure
Body, sealing effect is bad during causing leak detection.Meanwhile the sealing ring between seal nipple and workpiece to be checked, due to be checked
Sharp edge, the burr of workpiece joints scratch, and need to be replaced frequently, increase maintenance cost.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of air heave type sealing.
In order to achieve the above object, the present invention uses following technical scheme：
A kind of air heave type sealing, including seal nipple 3, sealing ring 2, the seal nipple 3 is equipped with seal groove, described close
Seal 2 is fixed in seal groove, and cavity is formed between seal groove, and the cavity is connected to gas ducting 5, described to fill
Feed channel 5 is connected to gas source pipe, discharge duct respectively, and the discharge duct is equipped with drain tap 7, on the gas source pipe
Equipped with air intake valve 9, gas source pipe is connect with compressed gas source 13.When the seal nipple of sealing clamp has been docked with by sealing workpiece
Cheng Hou, compressed gas source 13 are filled with compared with the gas for needing seal gas pressure high to cavity by gas source pipe and gas ducting 5, are made
Sealing ring contraction or expansion forms sealing ring and effective band by obturator with by sealing workpiece wall juxtaposition metamorphose, from
And reach good sealing effect.Before the inflation of compressed gas source 13, sealing ring 2 is hidden in the seal groove of seal nipple 3, no
It contacts, is avoided by the sharp edge of workpiece, burr scuffing with by sealing workpiece.
Preferably, being additionally provided with pressure gauge 10, voltage-regulation voltage-stabilization valve 11, hand valve 12 on the gas source pipe.Seal nipple 3 with
After being docked by sealing workpiece, hand valve 12 is opened, by voltage-regulation voltage-stabilization valve 11 and pressure gauge 10 by 13 output pressure tune of compressed gas source
It saves to the sealed pressure needed for inflatable gasket.The sealed pressure is higher than sealed medium pressure, while sealing ring 2 can be made to generate shape
It is deformed into reliable band.The too low then sealing effect of sealed pressure is bad, excessively high, increases facility load.
Preferably, the sealing ring 2 is made of elastic material, deformation can be generated under gas pressure.
Further preferably, it is additionally provided with exhaust silencer 8 on the discharge duct.Exhaust silencer 8 can eliminate bleeding
The influence of noise brought.
Further preferably, gas ducting 5 is fixed on by connector 4 inside seal nipple 3.
Due to the adoption of the above technical scheme, the beneficial effects of the present invention are：The present invention into seal groove by being filled with
Higher than by the gas of sealing material pressure, makes sealing ring and juxtaposition metamorphose is generated by sealing surface, reliably sealed to realization
Mode.Meanwhile the present invention makes sealing ring obtain 10,000 times or more with preventing sealing ring from being scratched by the sharp edge of workpiece interface, burr
Extra long life the characteristics of, inflatable make sealing ring formed efficient deformation, improve the reliability of sealing.
Description of the drawings
Fig. 1 is the structural schematic diagram of use state 1 of the present invention.
Fig. 2 is the structural schematic diagram of use state 2 of the present invention.
Reference numeral：
1, workpiece；2, sealing ring；3, seal nipple；4, connector；5, gas ducting；6, three-way connection；7, drain tap；
8, exhaust silencer；9, air intake valve；10, pressure gauge；11, voltage-regulation voltage-stabilization valve；12, hand valve；13, compressed gas source.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1：A kind of air heave type sealing, as shown in Figure 1, including seal nipple 3, sealing ring 2, seal nipple 3 is socketed
In the outside of workpiece 1,3 surface of seal nipple is equipped with seal groove, and sealing ring 2 is mounted in seal groove, and in separate workpiece
Cavity is formed between side and seal groove, connector 4 is tightened with seal nipple 3 and connect, and gas ducting 5 is solid by connector 4
Be scheduled on inside seal nipple 3,5 one end of gas ducting is connected to cavity, the other end by three-way connection 6 respectively with gas source pipe,
Discharge duct is connected to.
Air intake valve 9, pressure gauge 10, voltage-regulation voltage-stabilization valve 11, hand valve 12, gas source pipe and pressure are equipped on gas source pipe successively
Contracting air source 13 connects.Seal nipple 3 with sealing ring 2 is docked with workpiece 1, hand valve 12 is then turned on, passes through voltage-regulation voltage-stabilization
Compressed gas source output pressure is adjusted to the sealed pressure needed for inflatable gasket and (is higher than sealed medium pressure by valve 11 and pressure gauge 10
Power, while sealing ring 2 can be made to generate deformation and form reliable band).Open valve 9 allows pressed gas to be circulated to by pipeline 5
In the cavity that the seal groove of sealing ring 2 and seal nipple 3 is formed, pressed gas makes sealing ring 2 generate displacement and deformation, makes it
It shrinks to 1 direction of workpiece, is contacted with workpiece 1, and generated with the seal groove both sides of the sealed wall of workpiece 1, seal nipple 3 and contact change
Shape, to make seal nipple 3 and workpiece 1 form reliable sealing.
Discharge duct is equipped with drain tap 7 and exhaust silencer 8, after the sealing of needs, closes air intake valve
9, drain tap 7 is then opened, sealing ring 2 is allowed to be discharged with the high pressure gas in the cavity of the seal groove formation of seal nipple 3,
Seal nipple 3 can be removed from workpiece 1.
Embodiment 2：As shown in Fig. 2, a kind of sealing of air heave type, structure and embodiment 1 difference lies in：Seal nipple 3
It is docked at the inside of workpiece 1,3 surface of seal nipple is equipped with seal groove, and sealing ring 2 is mounted in seal groove, and far from work
Cavity is formed between the side and seal groove of part.Open valve 9, allow pressed gas by pipeline 5 be circulated to sealing ring 2 with it is close
In the cavity that the seal groove of sealing joint 3 is formed, pressed gas makes sealing ring 2 generate displacement and deformation, makes it to 1 direction of workpiece
Expansion, contacts with workpiece 1, and generates juxtaposition metamorphose with the seal groove both sides of the sealed wall of workpiece 1, seal nipple 3, close to make
Sealing joint 3 forms reliable sealing with workpiece 1.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (5)
1. a kind of air heave type sealing, including seal nipple (3), sealing ring (2), it is characterised in that：Seal nipple (3) surface
Equipped with seal groove, the sealing ring (2) is fixed in seal groove, and cavity is formed between seal groove, the sealing
Connector (3) is internally provided with gas ducting (5), and described gas ducting (5) one end is connected to cavity, the other end respectively with gas source pipe
Road, discharge duct connection, the discharge duct are equipped with drain tap (7), and the gas source pipe is equipped with air intake valve (9),
Gas source pipe is connect with compressed gas source (13).
2. a kind of air heave type sealing according to claim 1, it is characterised in that：It is additionally provided with pressure gauge on the gas source pipe
(10), voltage-regulation voltage-stabilization valve (11), hand valve (12).
3. a kind of air heave type sealing according to claim 1, it is characterised in that：The sealing ring (2) is by elastic material system
At deformation can be generated under gas pressure.
4. according to claim 1, a kind of air heave type described in 2 or 3 seals, it is characterised in that：It is additionally provided on the discharge duct
Exhaust silencer (8).
5. a kind of air heave type sealing according to claim 1,2 or 3, it is characterised in that：Gas ducting (5) passes through connector
(4) it is internal to be fixed on seal nipple (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711375513 | 2017-12-19 | ||
| CN2017113755130 | 2017-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302205A true CN108302205A (en) | 2018-07-20 |
Family
ID=62850585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810098186.7A Pending CN108302205A (en) | 2017-12-19 | 2018-01-31 | A kind of air heave type sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302205A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944064A (en) * | 2021-03-31 | 2021-06-11 | 成都万友滤机有限公司 | Pipeline sealing device and sealing method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041030A (en) * | 1988-05-07 | 1990-04-04 | 布隆福斯造船公司 | The seal arrangement that is used for rotating shaft, especially stern tube seal system |
| JPH04231774A (en) * | 1990-05-30 | 1992-08-20 | Blohm+Voss Ag | Sealing device to rotatory shaft |
| CN2497115Y (en) * | 2001-10-16 | 2002-06-26 | 南京奥亿达液压气动技术有限公司 | Piston rod U-shaped sealing device |
| CN2748710Y (en) * | 2004-09-17 | 2005-12-28 | 攀钢集团攀枝花钢铁研究院 | Sealing device |
| CN101435509A (en) * | 2007-11-15 | 2009-05-20 | 北京纽希液压技术研究所 | n type seal device |
| CN101451615A (en) * | 2007-12-05 | 2009-06-10 | 北京纽希液压技术研究所 | N shaped composite sealing device |
| CN102768104A (en) * | 2012-06-25 | 2012-11-07 | 苏州华爱电子有限公司 | Water dispenser used water system leak detection device and method |
| CN203414244U (en) * | 2013-08-08 | 2014-01-29 | 温州亚光机械制造有限公司 | Online glove leak detection device |
| CN105841895A (en) * | 2016-03-26 | 2016-08-10 | 宣月罗 | Joint sealing equipment |
-
2018
- 2018-01-31 CN CN201810098186.7A patent/CN108302205A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041030A (en) * | 1988-05-07 | 1990-04-04 | 布隆福斯造船公司 | The seal arrangement that is used for rotating shaft, especially stern tube seal system |
| JPH04231774A (en) * | 1990-05-30 | 1992-08-20 | Blohm+Voss Ag | Sealing device to rotatory shaft |
| CN2497115Y (en) * | 2001-10-16 | 2002-06-26 | 南京奥亿达液压气动技术有限公司 | Piston rod U-shaped sealing device |
| CN2748710Y (en) * | 2004-09-17 | 2005-12-28 | 攀钢集团攀枝花钢铁研究院 | Sealing device |
| CN101435509A (en) * | 2007-11-15 | 2009-05-20 | 北京纽希液压技术研究所 | n type seal device |
| CN101451615A (en) * | 2007-12-05 | 2009-06-10 | 北京纽希液压技术研究所 | N shaped composite sealing device |
| CN102768104A (en) * | 2012-06-25 | 2012-11-07 | 苏州华爱电子有限公司 | Water dispenser used water system leak detection device and method |
| CN203414244U (en) * | 2013-08-08 | 2014-01-29 | 温州亚光机械制造有限公司 | Online glove leak detection device |
| CN105841895A (en) * | 2016-03-26 | 2016-08-10 | 宣月罗 | Joint sealing equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944064A (en) * | 2021-03-31 | 2021-06-11 | 成都万友滤机有限公司 | Pipeline sealing device and sealing method thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180720 |
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| RJ01 | Rejection of invention patent application after publication |