CN103343855A - Hermetical embedded expansion joint - Google Patents
Hermetical embedded expansion joint Download PDFInfo
- Publication number
- CN103343855A CN103343855A CN2013103210416A CN201310321041A CN103343855A CN 103343855 A CN103343855 A CN 103343855A CN 2013103210416 A CN2013103210416 A CN 2013103210416A CN 201310321041 A CN201310321041 A CN 201310321041A CN 103343855 A CN103343855 A CN 103343855A
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- Prior art keywords
- sealing layer
- expansion joint
- corrugated pipe
- hermetical
- sealing
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Abstract
The invention relates to the technical field of expansion joint equipment, and in particular relates to a hermetical embedded expansion joint. The expansion joint comprises a corrugated pipe, a honeycomb duct connected in the corrugated pipe and a protective cover arranged outside the corrugated pipe, wherein a supporting plate is arranged between the corrugated pipe and the protective cover for supporting; a sealing component is arranged on the joint of the corrugated pipe and the end part of the protective cover, and comprises a first sealing layer and a second sealing layer arranged outside the first sealing layer; expanded graphite is filled in the first sealing layer, and a high temperature injection is filled in the second sealing layer. By adopting the structure, the hermetical embedded expansion joint can be used for preventing water in the surface layer from seeping through the sealing component, is better in temperature resistance, reliability and durability, is safe and reliable, and is long in service life. Furthermore, the hermetical embedded expansion joint has the characteristics of reasonable design, simple structure, low manufacture cost and the like.
Description
Technical field
The present invention relates to the expansion joint equipment technical field, be specifically related to sealing and bury expansion joint entirely.
Background technique
At present, it is some for the flexible expansion joint of compensation pipeline that existing directly buried pipeline all needs segmentation to install, and particularly is embedded in underground length for delivery of high temperature, high-pressure medium apart from heat supply pipeline, and the wall thickness of expansion joint is big, intensity is higher.In the using process, because the extending amount that heat supply pipeline produces is bigger, the bellows wave number is more, the bellows of expansion joint local leakage occurs because of fatigue easily, therefore poor sealing performance needs periodic maintenance or changes expansion joint, causes the working life of expansion joint shorter, the workload of safeguarding and changing is big, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of reasonable in design, simple in structure, good seal performance, expansion joint is buried in sealing safe and reliable, high temperature resistant, long service life entirely.
In order to solve the existing problem of background technique, the present invention is by the following technical solutions: expansion joint is buried in sealing entirely, comprise bellows, with described bellows in the protective housing that is connected to honeycomb duct and is located at described bellows outside, supported by dunnage between described bellows and the protective housing, the joint, end of described bellows and protective housing is provided with black box, described black box comprises first sealing layer and is located at second sealing layer in described first sealing layer outside, be filled with expanded graphite in described first sealing layer, be filled with the high temperature injecting in described second sealing layer.
The present invention has following beneficial effect: expansion joint is buried in sealing of the present invention entirely, mainly comprise bellows, with bellows in the honeycomb duct that connects and the protective housing of being located at the bellows outside, supported by dunnage between bellows and the protective housing, the joint, end of bellows and protective housing is provided with black box, black box comprises first sealing layer and is located at second sealing layer in first sealing layer outside, and be filled with expanded graphite in first sealing layer, be filled with the high temperature injecting in second sealing layer; The present invention adopts said structure, by black box to stoping surface layer water accessibility, heatproof, more reliable, more lasting more, good seal performance, safe and reliable, long service life.In addition, the present invention has characteristics such as reasonable in design, simple in structure, low cost of manufacture.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, expansion joint is buried in sealing entirely, comprise bellows 1, with described bellows 1 in the honeycomb duct 2 that connects and the protective housing 3 of being located at described bellows 1 outside, supported by dunnage 4 between described bellows 1 and the protective housing 3, described bellows 1 is provided with black box with the joint, end of protective housing 3, described black box comprises first sealing layer 5 and is located at second sealing layer 6 in described first sealing layer 5 outsides, be filled with expanded graphite in described first sealing layer 5, be filled with the high temperature injecting in described second sealing layer 6.In the present embodiment, adopt the external pressure flexible sealing structure, both increased expanded graphite, increased the high temperature injecting simultaneously again, to stoping surface layer water accessibility, more heatproof, more reliable, more lasting.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, other modifications that those of ordinary skills make technological scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
1. expansion joint is buried in sealing entirely, comprise bellows (1), with the honeycomb duct (2) that connects in the described bellows (1) and be located at the outside protective housing (3) of described bellows (1), it is characterized in that, supported by dunnage (4) between described bellows (1) and the protective housing (3), described bellows (1) is provided with black box with the joint, end of protective housing (3), described black box comprises first sealing layer (5) and is located at second sealing layer (6) in described first sealing layer (5) outside, be filled with expanded graphite in described first sealing layer (5), be filled with the high temperature injecting in described second sealing layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103210416A CN103343855A (en) | 2013-07-29 | 2013-07-29 | Hermetical embedded expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103210416A CN103343855A (en) | 2013-07-29 | 2013-07-29 | Hermetical embedded expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103343855A true CN103343855A (en) | 2013-10-09 |
Family
ID=49278673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103210416A Withdrawn CN103343855A (en) | 2013-07-29 | 2013-07-29 | Hermetical embedded expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822040A (en) * | 2014-03-11 | 2014-05-28 | 江苏星光波纹管有限公司 | Double-corrugated pipe fully-buried type expansion joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007552A (en) * | 1960-11-01 | 1965-10-13 | Garrett Corp | Improvements relating to seals |
| US3501174A (en) * | 1967-08-23 | 1970-03-17 | Filton Ltd | Rotary union |
| CN2049303U (en) * | 1989-04-04 | 1989-12-13 | 孙思孝 | Pipeline compensator |
| CN2314216Y (en) * | 1997-09-30 | 1999-04-14 | 江苏百新集团有限公司 | Bidirectional axial corrugated expansion joint by external pressure |
| CN2809400Y (en) * | 2005-01-19 | 2006-08-23 | 阜宁县第一机械厂有限公司 | Rotary compensator with sealant injector |
| CN1828064A (en) * | 2006-04-14 | 2006-09-06 | 浙江水泵总厂有限公司 | Sealing packing ring combination for high temperature high pressure hot-water circulating pump |
-
2013
- 2013-07-29 CN CN2013103210416A patent/CN103343855A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1007552A (en) * | 1960-11-01 | 1965-10-13 | Garrett Corp | Improvements relating to seals |
| US3501174A (en) * | 1967-08-23 | 1970-03-17 | Filton Ltd | Rotary union |
| CN2049303U (en) * | 1989-04-04 | 1989-12-13 | 孙思孝 | Pipeline compensator |
| CN2314216Y (en) * | 1997-09-30 | 1999-04-14 | 江苏百新集团有限公司 | Bidirectional axial corrugated expansion joint by external pressure |
| CN2809400Y (en) * | 2005-01-19 | 2006-08-23 | 阜宁县第一机械厂有限公司 | Rotary compensator with sealant injector |
| CN1828064A (en) * | 2006-04-14 | 2006-09-06 | 浙江水泵总厂有限公司 | Sealing packing ring combination for high temperature high pressure hot-water circulating pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822040A (en) * | 2014-03-11 | 2014-05-28 | 江苏星光波纹管有限公司 | Double-corrugated pipe fully-buried type expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131009 |