CN203718211U - Series connection sealing connecting device - Google Patents
Series connection sealing connecting device Download PDFInfo
- Publication number
- CN203718211U CN203718211U CN201320868973.8U CN201320868973U CN203718211U CN 203718211 U CN203718211 U CN 203718211U CN 201320868973 U CN201320868973 U CN 201320868973U CN 203718211 U CN203718211 U CN 203718211U
- Authority
- CN
- China
- Prior art keywords
- annular groove
- ring
- seal
- sealing
- star
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000003071 parasitic effect Effects 0.000 description 5
- 101100110009 Caenorhabditis elegans asd-2 gene Proteins 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model relates to a sealing connecting device, in particular to a series connection sealing connecting device used for sealing a large diameter pipeline of an airspace engine high-altitude simulation test. The device comprises two flange pieces, wherein a first annular groove and a second annular groove are formed in the end faces of the flange pieces; the first annular groove and the second annular groove are concentric; the diameter of the first annular groove is greater than that of the second annular groove; a non-metal seal ring is mounted in the first annular groove; a metal seal ring is mounted in the second annular groove. The device is simple in structure, and a sealing effect is ensured in the using process of the large diameter pipeline.
Description
Technical field
The utility model relates to a kind of seal connection, is specifically related to a kind of series seal connection set for the sealing of airspace engine altitude simulation test large diameter pipeline.
Background technique
Along with the development of Aero-Space cause, ground simulation simulation test requires more and more higher, at present, for airspace engine altitude simulation test, for the work of real simulation motor completely, therefore adopts large diameter pipeline, particularly important to the sealing of large diameter pipeline.Prior art way is to adopt single graphite winding metal o-ring to be fastened between two flange parts pipeline is sealed; but; because the bore of pipeline is very large, single seal ring, in the operating mode lower seal poor effect of high-temperature vacuum, often there will be the situation that air leakage is larger.
Model utility content
In order to overcome the problem in background technique, the utility model provides a kind of good sealing effect, the seal connection of series connection simple in structure.
Concrete technological scheme of the present utility model is:
A seal connection for series connection, comprises two flange parts and is arranged on the Sealing between flange part; It is characterized in that: described Sealing comprises a metal o-ring and a nonmetal seal ring; The end face of described flange part offers first ring connected in star and the second annular groove; Described first ring connected in star and the second annular groove are concentric, and the diameter of first ring connected in star is greater than the second annular groove; Nonmetal seal ring is installed in described first ring connected in star, metal o-ring is installed in the second annular groove.
Above-mentioned metal o-ring adopts stainless steel; Described nonmetal seal ring adopts silicone rubber material.
The beneficial effects of the utility model are:
1, the utility model series connection adopts two-stage ring structure, has greatly improved sealing effect.
2, the utility model adopts the metal o-ring of stainless steel and the nonmetal seal ring of silicone rubber material, the working life of having guaranteed worst hot case lower seal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is I of the present utility model place partial schematic diagram.
Fig. 3 is parasitic volume pressure change curve of the present utility model.
Fig. 4 is leak rate limit plotted curve in seal ring of the present utility model, parasitic volume.
1-flange part, 2-first ring connected in star, the nonmetal seal ring of 3-, 4-the second annular groove, 5-metal o-ring.
Embodiment
For complete real simulation airspace engine altitude simulation test, guarantee that large diameter pipeline is in the sealing of using process, the utility model provides a kind of good sealing effect, series seal connection set simple in structure.
Below in conjunction with accompanying drawing 1 and Fig. 2, the structure of this device is described:
A seal connection for series connection, comprises two flange parts 1 and is arranged on the Sealing between flange part 1;
Wherein, Sealing comprises a metal o-ring 5 and a nonmetal seal ring 3; The end face of flange part 1 offers first ring connected in star 2 and the second annular groove 4; First ring connected in star 2 and the second annular groove 4 are concentric, and the diameter of first ring connected in star 2 is greater than the second annular groove 4; The interior installation metal o-ring 5 of nonmetal seal ring 3, the second annular groove 4 of the interior installation of first ring connected in star 2.
Specifically, metal o-ring 5 adopts stainless steel; Nonmetal seal ring 3 adopts silicone rubber material.
Because this device has adopted the form of the two-stage series connection that metal sealing and nonmetal sealing combine, wherein, the seal ring of metal material, in inner side, directly contacts high-temperature fuel gas, material is 304 stainless steels---general oxidation resistant steel, can bear 870 ℃ of heating repeatedly below; Nonmetal O RunddichtringO is in outside, and material is silicone rubber---heat-resistant adhesive, and chemical inertness is large, and sealing strip material can be used for a long time under 170 ℃～190 ℃ temperature conditions.
Accompanying drawing 3 and accompanying drawing 4 have provided leak rate in the parasitic volume pressure of seal connection of series connection and seal ring, parasitic volume; Q in accompanying drawing 4 wherein
1(t)---the leak rate of metal o-ring; Q
2(t)---the leak rate of nonmetal Sealing; Q
c(t)---leak rate in parasitic volume; From data, stagnation pressure equilibrium time is 694.4h.Under high-temperature vacuum condition, adopt series seal technology, can effectively to high-temperature vacuum large diameter pipeline, seal.
With reference to the former service condition to single ring structure, inventor show that the leak rate of the series seal connection set that the utility model adopts is 1/2 of single seal ring seal connection.
Claims (2)
1. a seal connection for series connection, comprises two flange parts and is arranged on the Sealing between flange part; It is characterized in that: described Sealing comprises a metal o-ring and a nonmetal seal ring; The end face of described flange part offers first ring connected in star and the second annular groove; Described first ring connected in star and the second annular groove are concentric, and the diameter of first ring connected in star is greater than the second annular groove; Nonmetal seal ring is installed in described first ring connected in star, metal o-ring is installed in the second annular groove.
2. the seal connection of series connection according to claim 1, is characterized in that: described metal o-ring adopts stainless steel; Described nonmetal seal ring adopts silicone rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868973.8U CN203718211U (en) | 2013-12-23 | 2013-12-23 | Series connection sealing connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868973.8U CN203718211U (en) | 2013-12-23 | 2013-12-23 | Series connection sealing connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718211U true CN203718211U (en) | 2014-07-16 |
Family
ID=51157361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868973.8U Expired - Lifetime CN203718211U (en) | 2013-12-23 | 2013-12-23 | Series connection sealing connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718211U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948281A (en) * | 2015-06-17 | 2015-09-30 | 安徽力诺机械制造有限公司 | Forklift exhaust pipe |
| CN107030416A (en) * | 2017-04-26 | 2017-08-11 | 六安六八航空航天精密器件有限公司 | It is a kind of to carry the sealing air supply system of vacuum and positive/negative-pressure |
| CN107732668A (en) * | 2017-11-25 | 2018-02-23 | 山西捷力通防雷科技有限公司 | A kind of new glass fibre reinforced plastic lightning rod |
| CN109210297A (en) * | 2018-11-27 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of metal leakage-proof part and its method and oil exploration equipment |
-
2013
- 2013-12-23 CN CN201320868973.8U patent/CN203718211U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948281A (en) * | 2015-06-17 | 2015-09-30 | 安徽力诺机械制造有限公司 | Forklift exhaust pipe |
| CN107030416A (en) * | 2017-04-26 | 2017-08-11 | 六安六八航空航天精密器件有限公司 | It is a kind of to carry the sealing air supply system of vacuum and positive/negative-pressure |
| CN107732668A (en) * | 2017-11-25 | 2018-02-23 | 山西捷力通防雷科技有限公司 | A kind of new glass fibre reinforced plastic lightning rod |
| CN109210297A (en) * | 2018-11-27 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of metal leakage-proof part and its method and oil exploration equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203718211U (en) | Series connection sealing connecting device | |
| CN205745845U (en) | A kind of engine pipelines fast plugging device | |
| CN105015797A (en) | Sealing block cover for air intake duct | |
| CN203488710U (en) | VCR pipe connecting sealing gasket | |
| CN201487433U (en) | Sealing ring | |
| CN203258240U (en) | Tooth-shaped flange sealing gasket | |
| CN104006179B (en) | A kind of manufacturing process of sealing configuration of four sealing aviation fuel valves | |
| CN203604637U (en) | End face sealing device for hydrostatic tests of steel pipes | |
| CN203374781U (en) | Sealing ring of motor of dust collector | |
| CN204611024U (en) | The valve of the seal ring with self-tightening sealing | |
| CN204267807U (en) | A kind of valve inside metallic core | |
| CN201434099Y (en) | Flat gate valve | |
| CN204942827U (en) | A kind of Hermetical connecting structure of MBR membrane module | |
| CN204239932U (en) | The linkage structure of pipe and flange | |
| CN204512947U (en) | A kind of cryogenic insulated cylinder vacuum leak hunting frock | |
| RU128694U1 (en) | FLANGE CONNECTION | |
| CN204239956U (en) | Gas station's well bucket pipeline sealing structure | |
| CN202708385U (en) | Pipeline leakage detecting tool | |
| CN204961846U (en) | Ammonia stop valve | |
| CN203441473U (en) | Logging instrument combined sealing structure | |
| CN204214607U (en) | Liquefied natural gas bottle inner bag detection cubing | |
| CN201773059U (en) | Single filter element reverse bubble point tester | |
| CN204004412U (en) | A kind of radially dynamic adjustable contact type sealing device for axle head | |
| CN204140140U (en) | A kind of clamping ring structure obturaged for gas turbine | |
| CN203272819U (en) | Butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |