CN219866686U - Multilayer sealing structure and leakage detection penetrating sealing piece - Google Patents
Multilayer sealing structure and leakage detection penetrating sealing piece Download PDFInfo
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- CN219866686U CN219866686U CN202321088128.9U CN202321088128U CN219866686U CN 219866686 U CN219866686 U CN 219866686U CN 202321088128 U CN202321088128 U CN 202321088128U CN 219866686 U CN219866686 U CN 219866686U
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- 238000007789 sealing Methods 0.000 title claims abstract description 175
- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 18
- 229920000742 Cotton Polymers 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 33
- 238000004321 preservation Methods 0.000 claims description 29
- 230000035515 penetration Effects 0.000 claims description 15
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 47
- 239000002356 single layer Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a multilayer sealing structure and a penetrating sealing piece for leakage detection, which belong to the technical field of testing, and comprise a heat insulation penetrating piece, an inner layer sealing structure, an outer layer sealing structure and a leakage detection structure; the heat insulation penetrating piece comprises first heat insulation cotton, a first heat insulation ingress pipe, a first annular sealing plug and a first pressure ingress pipe; the outer layer sealing structure comprises an upper outer layer sealing housing and a lower outer layer sealing housing which are detachably and hermetically connected; the inner layer sealing structure is covered by the upper and lower groups of first outer layer sealing covers. By adopting the mode, the utility model adopts a multi-layer sealing structure, which is beneficial to reducing heat leakage and greatly improving the reliability compared with a single-layer sealing structure; according to the utility model, through the leakage detection structure, leakage detection can be performed between the inner layer sealing structure and the outer layer sealing structure, so that after single-layer leakage is found, the leakage detection structure can be used for disposal, and the reliability and safety of equipment sealing are improved.
Description
Technical Field
The utility model relates to the technical field of testing, in particular to a multilayer sealing structure and a penetrating sealing piece for leakage detection.
Background
The high-low temperature altitude test laboratory of the new energy vehicle or battery system and the thermal management system is used for simulating temperature, humidity and altitude and alternating combination of the parameters: the temperature range can reach-50 to +80, the DEG C humidity can reach 5-95% RH, and the altitude simulation can reach-100 to +5500m (corresponding to 0.5-1 atmosphere). The steel shell of the altitude shell is provided with penetrating pipelines, the penetrating sealing treatment of the pipelines is to consider the high-low temperature, high-low pressure and high-low humidity tolerance, and meanwhile, the fatigue characteristics under the condition of temperature, humidity and pressure alternation are required to be paid attention to, so that the requirements on heat preservation and sealing reliability are very high.
However, the description of FIG. 1 shows a prior art through seal configuration in which the pipe is welded directly to the altitude casing; although the above-mentioned mode is simple in structure, this mode has the problem of leaking cold, and can't carry out leak detection.
Based on the above, the present utility model has devised a multi-layer sealing structure and a penetration seal for leak detection to solve the above-mentioned problems.
Disclosure of Invention
In view of the foregoing drawbacks of the prior art, the present utility model provides a multi-layer seal structure and a leak detection penetration seal.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the multi-layer sealing structure comprises a heat insulation penetrating piece, an inner layer sealing structure, an outer layer sealing structure and a leakage detection structure;
the heat insulation penetrating piece comprises first heat insulation cotton, a first heat insulation ingress pipe, a first annular sealing plug and a first pressure ingress pipe; one end of the first pressure-bearing ingress pipe, which is positioned outside the pressure-resistant shell, is provided with an inner layer sealing structure, an outer layer sealing structure and a leakage detection structure;
the outer layer sealing structure comprises an upper outer layer sealing housing and a lower outer layer sealing housing which are detachably and hermetically connected; the lower end of the lower first outer sealing cover shell is fixedly connected with one end of the first pressure-bearing ingress pipe, which is positioned outside the pressure-resistant shell, the inner side of the upper end of the upper first outer sealing cover shell is in sealing contact connection with the inner sealing structure, and the inner sealing structure is covered by the upper and lower sets of first outer sealing cover shells.
Furthermore, a first annular sealing plug which is fit and sleeved outside the first through pipeline is arranged between the first heat preservation ingress pipe and the first through pipeline, the first heat preservation ingress pipe is fixedly connected to the inside of the opening of the heat preservation warehouse board, and the outer wall of the first annular sealing plug is fit and contacted with the inner wall of the first heat preservation ingress pipe; the first heat preservation Wen Miantao is arranged on the first penetrating pipeline, one end of the first heat preservation cotton is in fit contact with the first annular sealing plug, the outer wall of one end of the first heat preservation cotton is in fit contact with the inner wall of the first heat preservation ingress pipe, the outer part of the other end of the first heat preservation cotton is in fit contact with the inner wall of the first pressure-bearing ingress pipe, the first pressure-bearing ingress pipe penetrates through the pressure-resistant shell, one end of the first pressure-bearing ingress pipe is positioned inside the pressure-resistant shell, the other end of the first pressure-bearing ingress pipe is positioned outside the pressure-resistant shell, and one end of the first pressure-bearing ingress pipe positioned outside the pressure-resistant shell is fixedly connected with the outer wall of the pressure-resistant shell; the pressure-resistant shell is of a hollow structure and is positioned outside the heat-preserving warehouse board.
Further, the inner sealing structure comprises a first flange type pressure bearing conduit base and a first inner sealing flange; the end part of one end of the first pressure-bearing ingress pipe, which is positioned outside the pressure-bearing shell, is fixedly connected with a first flange-type pressure-bearing conduit base, the upper end of the first flange-type pressure-bearing conduit base is fixedly connected with a first inner layer sealing flange, and the first flange-type pressure-bearing conduit base and the first inner layer sealing flange are both in fit and sleeved outside the first heat-preserving cotton.
Further, the outer sealing structure comprises an upper outer sealing cover shell and a lower outer sealing cover shell which are detachably and hermetically connected; the lower end of the lower first outer sealing cover shell is fixedly connected with one end of the first pressure-bearing ingress pipe, which is positioned outside the pressure-resistant shell, the inner side of the upper end of the upper first outer sealing cover shell is in sealing contact connection with the outside of the first heat-preserving cotton, and the lower end of the upper first outer sealing cover shell is detachably and hermetically connected with the upper end of the lower first outer sealing cover shell; the first flange type pressure bearing conduit base, the first inner sealing flange and the first heat insulation sealing gasket are covered by the upper and lower groups of first outer sealing covers.
Furthermore, the first flange type pressure bearing conduit base and the first inner layer sealing flange are connected by fastening bolts.
Further, the two groups of first outer sealing shells are connected in a sealing way through threads or flanges.
Still further, the leak detection structure includes a leak detection instrument.
Further, the leak detection instrument adopts a housing differential pressure detector which is fixedly arranged on the first outer layer sealing housing and is used for detecting the housing differential pressure result in the first outer layer sealing housing.
Furthermore, heat insulation materials are filled between the first flange type pressure bearing conduit base and the inner walls of the two groups of first outer layer sealing covers.
Furthermore, a first heat-insulating sealing gasket is arranged between the first inner sealing flange and the first flange type pressure-bearing conduit base, and the first heat-insulating sealing gasket is attached to the outside of the first heat-insulating cotton.
Advantageous effects
The utility model adopts a multi-layer sealing structure, which is beneficial to reducing heat leakage and greatly improving the reliability compared with a single-layer sealing structure;
according to the utility model, through the leakage detection structure, leakage detection can be performed between the inner layer sealing structure and the outer layer sealing structure, so that after single-layer leakage is found, the leakage detection structure can be used for disposal, and the reliability and safety of equipment sealing are improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a conventional through seal configuration;
FIG. 2 is a block diagram of a multi-layer seal structure and a leak detection penetration seal of the present utility model.
Reference numerals in the drawings represent respectively:
1. a first thermal insulation cotton; 2. a first heat-retaining introduction pipe; 3. a first annular sealing plug; 4. a first flange type pressure-bearing conduit base; 5. a first outer sealed enclosure; 6. a first through pipe; 7. a housing differential pressure detector; 8. a first inner sealing flange; 9. a first heat insulating gasket; 10. a thermal insulation warehouse board; 11. a pressure housing; 12. a first pressure-bearing ingress pipe; 01. third heat-insulating cotton; 02. a second heat-insulating ingress pipe; 03. a second annular sealing plug; 04. a second pressure-bearing ingress pipe; 05. a second through pipe; 06. fourth heat preservation cotton.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model is further described below with reference to examples.
Referring to fig. 1 of the specification, a conventional through sealing member structure comprises a third heat insulation cotton 01, a second heat insulation ingress pipe 02, a second annular sealing plug 03, a second pressure ingress pipe 04 and a fourth heat insulation cotton 06; a second annular sealing plug 03 fixedly sleeved outside the second through pipeline 05 is arranged between the second through pipeline 05 and the heat preservation warehouse board 10, a second heat preservation ingress pipe 02 is fixedly connected inside the opening of the heat preservation warehouse board 10, and the outer wall of the second annular sealing plug 03 is in contact with the inner wall of the second heat preservation ingress pipe 02; the pressure-resistant shell 11 is hollow and positioned outside the thermal insulation warehouse board 10, and a second pressure-resistant ingress pipe 04 is fixedly connected to the pressure-resistant shell 11; the third heat-insulating cotton 01 and the fourth heat-insulating cotton 06 are sleeved on the second penetrating pipeline 05, one end of the third heat-insulating cotton 01 is in contact connection with the second annular sealing plug 03, and one end of the outer wall of the third heat-insulating cotton 01 is in contact with the inner wall of the second heat-insulating ingress pipe 02; the other end of the third heat-insulating cotton 01 is positioned in the pressure-resistant shell 11 and is in contact connection with one end of the second pressure-bearing ingress pipe 04, one end of the fourth heat-insulating cotton 06 is spliced in a groove of the second pressure-bearing ingress pipe 04 positioned in the pressure-resistant shell 11 after passing through the pressure-resistant shell 11, the other end of the second pressure-bearing ingress pipe 04 is positioned outside the pressure-resistant shell 11 and is fixedly connected with the pressure-resistant shell 11, and the other end of the fourth heat-insulating cotton 06 is positioned outside the pressure-resistant shell 11;
however, the above structure has the following problems: the problem of cold leakage exists, and leakage detection cannot be performed;
in order to solve the above problems, referring to fig. 2 of the specification, the present utility model provides a multi-layer sealing structure and a penetration sealing member for leak detection, which includes a heat insulation penetration member, an inner layer sealing structure, an outer layer sealing structure and a leak detection structure;
in some embodiments, the insulation penetration comprises a first insulation cotton 1, a first insulation ingress pipe 2, a first annular sealing plug 3 and a first pressure ingress pipe 12; a first annular sealing plug 3 which is fit and sleeved outside the first through pipe 6 is arranged between the first heat preservation ingress pipe 2 and the first through pipe 6, the first heat preservation ingress pipe 2 is fixedly connected inside the opening of the heat preservation warehouse board 10, and the outer wall of the first annular sealing plug 3 is fit and contacted with the inner wall of the first heat preservation ingress pipe 2; the first heat preservation cotton 1 is sleeved on the first penetrating pipe 6, one end of the first heat preservation cotton 1 is in fit contact with the first annular sealing plug 3, the outer wall of one end of the first heat preservation cotton 1 is in fit contact with the inner wall of the first heat preservation ingress pipe 2, the outer part of the other end of the first heat preservation cotton 1 is in fit contact with the inner wall of the first pressure-bearing ingress pipe 12, the first pressure-bearing ingress pipe 12 penetrates through the pressure-resistant shell 11, one end of the first pressure-bearing ingress pipe 12 is positioned inside the pressure-resistant shell 11, the other end of the first pressure-bearing ingress pipe 12 is positioned outside the pressure-resistant shell 11, and one end of the first pressure-bearing ingress pipe 12 positioned outside the pressure-resistant shell 11 is fixedly connected with the outer wall of the pressure-resistant shell 11; the pressure-resistant shell 11 is of a hollow structure and is positioned outside the thermal insulation warehouse board 10;
one end of the first pressure-bearing ingress pipe 12 located outside the pressure-resistant housing 11 is provided with an inner layer sealing structure, an outer layer sealing structure and a leak detection structure;
the inner sealing structure comprises a first flange type pressure-bearing conduit base 4, a first inner sealing flange 8 and a first heat insulation sealing gasket 9; the end part of one end of the first pressure-bearing ingress pipe 12, which is positioned outside the pressure-resistant shell 11, is fixedly connected with a first flange type pressure-bearing pipe base 4, the upper end of the first flange type pressure-bearing pipe base 4 is fixedly connected with a first inner sealing flange 8 through a fastening bolt, a first heat insulation sealing gasket 9 is filled between the first inner sealing flange 8 and the first flange type pressure-bearing pipe base 4, the first inner sealing flange 8 and the first heat insulation sealing gasket 9 are all in fit and sleeved outside the first heat insulation cotton 1;
the first flange type pressure-bearing conduit base 4 and the first inner layer sealing flange 8 are connected by fastening bolts, so that maintenance and replacement after leakage are facilitated;
the outer sealing structure comprises an upper outer sealing housing 5 and a lower outer sealing housing 5 which are detachably and hermetically connected; the lower end of the lower first outer layer sealing cover shell 5 is fixedly connected with one end of the first pressure-bearing ingress pipe 12 positioned outside the pressure-resistant shell 11, the inner side of the upper end of the upper first outer layer sealing cover shell 5 is in sealing contact connection with the outside of the first heat-preserving cotton 1, and the lower end of the upper first outer layer sealing cover shell 5 is detachably and hermetically connected with the upper end of the lower first outer layer sealing cover shell 5; the first flange type pressure-bearing conduit base 4, the first inner sealing flange 8 and the first heat insulation sealing gasket 9 are covered by an upper outer sealing cover 5 and a lower outer sealing cover 5;
preferably, the two groups of first outer sealing shells 5 are connected in a sealing way through threads or flanges;
in some embodiments, the leak detection structure includes a leak detection instrument;
preferably, the leak detection instrument adopts a housing differential pressure detector 7, and the housing differential pressure detector 7 is fixedly arranged on the first outer sealing housing 5 and is used for detecting the housing differential pressure result in the first outer sealing housing 5;
preferably, heat insulation materials are filled between the first flange type pressure-bearing conduit base 4 and the inner walls of the two groups of first outer sealing covers 5, so that the condition of heat leakage is further reduced;
the leak monitoring is preferably a differential pressure method, wherein the pressure difference between the outer part of the first outer layer sealing housing 5 and the inner part of the first outer layer sealing housing 5 is monitored through a housing differential pressure detector 7, and when the pressure difference is equal to the pressure difference between the inner part and the outer part of the pressure-resistant housing 11, the leak of the inner layer sealing structure is indicated, and the maintenance of the inner layer sealing structure is prompted;
the utility model adopts a multi-layer sealing structure, which is beneficial to reducing heat leakage and greatly improving the reliability compared with a single-layer sealing structure;
according to the utility model, through the leakage detection structure, leakage detection can be performed between the inner layer sealing structure and the outer layer sealing structure, so that after single-layer leakage is found, the leakage detection structure can be used for disposal, and the reliability and safety of equipment sealing are improved.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. Multilayer seal structure and leak detection's penetration seal, including thermal-insulated penetration piece, its characterized in that:
the device also comprises an inner layer sealing structure, an outer layer sealing structure and a leakage detection structure;
the heat insulation penetrating piece comprises first heat insulation cotton (1), a first heat insulation ingress pipe (2), a first annular sealing plug (3) and a first pressure ingress pipe (12); one end of the first pressure-bearing ingress pipe (12) positioned outside the pressure-resistant shell (11) is provided with an inner layer sealing structure, an outer layer sealing structure and a leakage detection structure;
the outer sealing structure comprises an upper outer sealing housing (5) and a lower outer sealing housing which are detachably and hermetically connected; the lower end of the lower first outer sealing cover shell (5) is fixedly connected with one end of the first pressure-bearing ingress pipe (12) positioned outside the pressure-resistant shell (11), the inner side of the upper end of the upper first outer sealing cover shell (5) is in sealing contact connection with the inner sealing structure, and the inner sealing structure is covered by the upper first outer sealing cover shell and the lower first outer sealing cover shell (5).
2. The multilayer sealing structure and the penetrating sealing member for leakage detection according to claim 1, wherein a first annular sealing plug (3) which is fit and sleeved outside the first penetrating pipe (6) is installed between the first heat-preserving ingress pipe (2) and the first penetrating pipe (6), the first heat-preserving ingress pipe (2) is fixedly connected inside an opening of the heat-preserving warehouse board (10), and the outer wall of the first annular sealing plug (3) is fit and contacted with the inner wall of the first heat-preserving ingress pipe (2); the first heat preservation cotton (1) is sleeved on the first through pipeline (6), one end of the first heat preservation cotton (1) is in fit contact with the first annular sealing plug (3), the outer wall of one end of the first heat preservation cotton (1) is in fit contact with the inner wall of the first heat preservation ingress pipe (2), the outer part of the other end of the first heat preservation cotton (1) is in fit contact with the inner wall of the first pressure ingress pipe (12), the first pressure ingress pipe (12) penetrates through the pressure-resistant shell (11), one end of the first pressure ingress pipe (12) is positioned inside the pressure-resistant shell (11), the other end of the first pressure ingress pipe (12) is positioned outside the pressure-resistant shell (11), and one end of the first pressure ingress pipe (12) positioned outside the pressure-resistant shell (11) is fixedly connected with the outer wall of the pressure-resistant shell (11); the pressure-resistant shell (11) is of a hollow structure and is positioned outside the thermal insulation warehouse board (10).
3. The multilayer sealing structure and leak detection penetration seal according to claim 2, characterized in that the inner sealing structure comprises a first flanged pressure conduit base (4) and a first inner sealing flange (8); the end part of one end of the first pressure-bearing ingress pipe (12) positioned outside the pressure-resistant shell (11) is fixedly connected with a first flange type pressure-bearing pipe base (4), the upper end of the first flange type pressure-bearing pipe base (4) is fixedly connected with a first inner layer sealing flange (8), and the first flange type pressure-bearing pipe base (4) and the first inner layer sealing flange (8) are both attached and sleeved outside the first heat-preserving cotton (1).
4. A multi-layer sealing structure and a leak detection penetration seal according to claim 3, characterized in that the outer sealing structure comprises a first outer sealing casing (5) of two sets of detachable sealing connection; the lower end of the lower first outer layer sealing cover shell (5) is fixedly connected with one end of the first pressure-bearing ingress pipe (12) positioned outside the pressure-resistant shell (11), the inner side of the upper end of the upper first outer layer sealing cover shell (5) is in sealing contact connection with the outside of the first heat-preserving cotton (1), and the lower end of the upper first outer layer sealing cover shell (5) is detachably and hermetically connected with the upper end of the lower first outer layer sealing cover shell (5); the first flange type pressure-bearing conduit base (4), the first inner layer sealing flange (8) and the first heat insulation sealing gasket (9) are covered by the upper and lower groups of first outer layer sealing covers (5).
5. A multi-layer sealing structure and a leak detection penetration seal according to claim 3, characterized in that the first flange-type pressure conduit base (4) and the first inner sealing flange (8) are connected by fastening bolts.
6. Multi-layer sealing structure and leak detection penetration seal according to claim 1, characterized in that the two sets of first outer sealing shells (5) are sealingly connected by means of threads or flanges.
7. The multi-layer seal structure and leak detection penetration seal of claim 1, wherein the leak detection structure comprises a leak detection instrument.
8. The multi-layer sealing structure and the leak detection penetration seal according to claim 7, wherein the leak detection instrument employs a housing differential pressure detector (7), the housing differential pressure detector (7) being fixedly mounted on the first outer layer sealing housing (5) for detecting a housing differential pressure result in the first outer layer sealing housing (5).
9. A multi-layer sealing structure and a leak detection penetration seal according to claim 3, characterized in that between the first flanged pressure conduit base (4) and the inner walls of the two sets of first outer sealing shells (5) a thermal insulation material is filled.
10. The multilayer sealing structure and the penetrating sealing member for leakage detection according to claim 9, wherein a first heat insulation sealing gasket (9) is arranged between the first inner sealing flange (8) and the first flange type pressure bearing conduit base (4), and the first heat insulation sealing gasket (9) is in fit and sleeved outside the first heat insulation cotton (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321088128.9U CN219866686U (en) | 2023-05-09 | 2023-05-09 | Multilayer sealing structure and leakage detection penetrating sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321088128.9U CN219866686U (en) | 2023-05-09 | 2023-05-09 | Multilayer sealing structure and leakage detection penetrating sealing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866686U true CN219866686U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321088128.9U Active CN219866686U (en) | 2023-05-09 | 2023-05-09 | Multilayer sealing structure and leakage detection penetrating sealing piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866686U (en) |
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2023
- 2023-05-09 CN CN202321088128.9U patent/CN219866686U/en active Active
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