CN102367903A - High-temperature-resistant abrasion-proof positive-pressure expansion joint - Google Patents
High-temperature-resistant abrasion-proof positive-pressure expansion joint Download PDFInfo
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- CN102367903A CN102367903A CN2011102569634A CN201110256963A CN102367903A CN 102367903 A CN102367903 A CN 102367903A CN 2011102569634 A CN2011102569634 A CN 2011102569634A CN 201110256963 A CN201110256963 A CN 201110256963A CN 102367903 A CN102367903 A CN 102367903A
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- sleeve pipe
- expansion joint
- bushing
- lower sleeve
- fire resistant
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Abstract
The invention discloses a high-temperature-resistant abrasion-proof positive-pressure expansion joint, which comprises an upper bushing which is connected with a flange in a welding way, a lower bushing which is arranged on the flange and a metal corrugated pipe which is arranged at the outer sides of the upper and the lower bushings, wherein a heat-preserving material is respectively arranged between the upper bushing and the metal corrugated pipe and between the lower bushing and the metal corrugated pipe, a plurality of hooks are arranged on the outer wall of the upper bushing and the lower bushing, the heat-preserving materials are wrapped by a wire mesh and is fixed on the upper and the lower bushings through the hooks, the periphery of the lower bushing is provided with a limiting clamp plate, a radial expansion gap is reserved between the limiting clamp plate and the lower bushing, and a plurality of grasping nails are welded on the inner walls of the upper bushing and the lower bushing, and an abrasion-proof material is respectively arranged on the inner wall of the upper bushing and the lower bushing, so the leakage, ripping and abrasion of the expansion joint can be prevented.
Description
Technical field
The present invention relates to a kind of expansion joint, relate in particular to a kind of fire resistant wear prevention type malleation expansion joint.
Background technique
In boiler, smelting and chemical industry, the cigarette air channel that has works in high temperature, positive pressure environment, and has the advantages that dust concentration is big in the air-flow, speed is high, abrasiveness is strong, owing to there is differential expansion, at these positions expansion joint is installed usually, expands to absorb.Because structural design is unreasonable, mainly there is following problem in the expansion joint that uses at present: 1, in servicely can not absorb radial expansion and by drawing crack; 2, inner sleeve can not seal and cause the high-temperature flue gas leakage to burn out bellows; 3, through supercooled state, hot after, thermal insulating material can not restore and cause bellows to burn out; 4, inner sleeve does not have anti-wear material and weares and teares.
Therefore, be necessary to provide a kind of expansion joint that solves the problems of the technologies described above.
Summary of the invention
Technical problem to be solved by this invention is: a kind of expansion joint of preventing heads, drawing crack and wearing and tearing is provided.
For solving the problems of the technologies described above; The technological scheme that the present invention adopts is: a kind of fire resistant wear prevention type malleation expansion joint; It comprises: the last sleeve pipe that welds mutually with flange, be positioned over the casing running on the flange and be arranged at the metal bellows of upper and lower outside of sleeve; Be provided with thermal insulating material between said upper and lower sleeve pipe and the metal bellows; The outer wall of said upper and lower sleeve pipe is provided with several hooks, and said thermal insulating material is fixed on the upper and lower sleeve pipe by the steel wire parcel and with hook, around cased, is provided with spacing clamp; Leave the radial expansion gap between said spacing clamp and the casing running, the inwall of said upper and lower sleeve pipe is welded with several bitch and is laid with anti-wear material.
As a kind of preferred scheme, the last sleeve pipe and the casing running of said expansion joint fit tightly.
As a kind of preferred scheme, said hook welds with the outer wall of upper and lower sleeve pipe mutually.
The invention has the beneficial effects as follows: fit tightly through upper and lower sleeve pipe; Between casing running and clamp, leave the radial expansion gap, axial expansion takes place no matter be in operation, or radial expansion; Upper and lower sleeve pipe remains sealing state, prevents the high-temperature flue gas leakage.Thermal insulating material wraps up with steel wire, and is fixed on the upper and lower sleeve pipe with hook, is in operation no matter how expansion joint expands, and hook all can let the same moved further of thermal insulating material and sleeve pipe, and preventing thermal insulating material can not restore, thereby the flue gas leakage takes place.Inboard at upper and lower sleeve pipe is provided with bitch, and lays anti-wear material, can prevent the inner sleeve wearing and tearing.
Description of drawings
Fig. 1 is the structural representation of fire resistant wear prevention type malleation expansion joint.
Among Fig. 1: 1, go up sleeve pipe, 100, fire resistant wear prevention type malleation expansion joint, 2, casing running, 3, metal bellows, 4, thermal insulating material, 5, hook, 6, steel wire, 7, spacing clamp, 8, the radial expansion gap, 9, bitch, 90, anti-wear material.
Embodiment
See also Fig. 1; A kind of fire resistant wear prevention type malleation expansion joint 100; It comprises: the last sleeve pipe 1 that welds mutually with flange, be positioned over the casing running 2 on the flange and be arranged at the metal bellows 3 of upper and lower outside of sleeve, be provided with thermal insulating material 4 between said upper and lower sleeve pipe and the metal bellows 3, the outer wall of said upper and lower sleeve pipe is provided with several hooks 5; Said thermal insulating material 4 is fixed on the upper and lower sleeve pipe 1,2 by steel wire 6 parcels and with hook 5; Around casing running 2, be provided with spacing clamp 7, leave radial expansion gap 8 between said spacing clamp 7 and the casing running 2, the inwall of said upper and lower sleeve pipe is welded with several bitch 9 and is laid with anti-wear material 90.The last sleeve pipe 1 and the casing running 2 of said expansion joint 100 fit tightly.Said hook 5 welds with the outer wall of upper and lower sleeve pipe 1,2 mutually.
The present invention fits tightly through upper and lower sleeve pipe 1,2, between casing running 2 and spacing clamp 7, leaves radial expansion gap 8, no matter be in operation axial expansion takes place, or radial expansion, and upper and lower sleeve pipe remains sealing state, prevents the high-temperature flue gas leakage.Thermal insulating material 4 is with steel wire 6 parcels; And 5 be fixed on the upper and lower sleeve pipe 1,2 with hook, being in operation no matter how expansion joint expands, hook 5 all can let thermal insulating material 4 and the same moved further of sleeve pipe; Preventing thermal insulating material 4 can not restore, and reveals thereby flue gas takes place.In the inboard of upper and lower sleeve pipe, be provided with bitch 9, and lay anti-wear material 90, thereby can prevent the inner sleeve wearing and tearing.
Claims (3)
1. fire resistant wear prevention type malleation expansion joint; It is characterized in that: this fire resistant wear prevention type malleation expansion joint comprises: the last sleeve pipe that welds mutually with flange, the metal bellows that is positioned over the casing running on the flange and is arranged at upper and lower outside of sleeve; Be provided with thermal insulating material between said upper and lower sleeve pipe and the metal bellows; The outer wall of said upper and lower sleeve pipe is provided with several hooks, and said thermal insulating material is fixed on the upper and lower sleeve pipe by the steel wire parcel and with hook, around cased, is provided with spacing clamp; Leave the radial expansion gap between said spacing clamp and the casing running, the inwall of said upper and lower sleeve pipe is welded with several bitch and is laid with anti-wear material.
2. a kind of fire resistant wear prevention type malleation expansion joint as claimed in claim 1, it is characterized in that: the last sleeve pipe and the casing running of said expansion joint fit tightly.
3. a kind of fire resistant wear prevention type malleation expansion joint as claimed in claim 2, it is characterized in that: said hook welds with the outer wall of upper and lower sleeve pipe mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102569634A CN102367903A (en) | 2011-09-02 | 2011-09-02 | High-temperature-resistant abrasion-proof positive-pressure expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102569634A CN102367903A (en) | 2011-09-02 | 2011-09-02 | High-temperature-resistant abrasion-proof positive-pressure expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367903A true CN102367903A (en) | 2012-03-07 |
Family
ID=45760490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102569634A Pending CN102367903A (en) | 2011-09-02 | 2011-09-02 | High-temperature-resistant abrasion-proof positive-pressure expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102367903A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635752A (en) * | 2012-03-30 | 2012-08-15 | 南通三创机械制造有限公司 | High temperature expansion joint |
| CN102635753A (en) * | 2012-04-10 | 2012-08-15 | 南通三创机械制造有限公司 | Compound type high-temperature expansion joint |
| CN102661467A (en) * | 2012-03-30 | 2012-09-12 | 南通三创机械制造有限公司 | Metal corrugated pipe expansion joint |
| CN102777726A (en) * | 2012-03-30 | 2012-11-14 | 南通三创机械制造有限公司 | High-temperature expansion joint |
| CN109681725A (en) * | 2019-01-28 | 2019-04-26 | 秦皇岛市泰德管业科技有限公司 | A kind of elasticity high temperature resistant heat insulation structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341283B2 (en) * | 2004-01-29 | 2008-03-11 | Oil States Industries, Inc. | High temperature flexible pipe joint |
| CN201628044U (en) * | 2010-02-26 | 2010-11-10 | 江苏晨光波纹管有限公司 | Corrugated pipe compensator with built-in elastic connecting structure |
| CN201875348U (en) * | 2010-07-23 | 2011-06-22 | 陈晓军 | CFB boiler-used high temperature metallic expansion joint |
| CN202215891U (en) * | 2011-09-02 | 2012-05-09 | 江苏申港锅炉有限公司 | High-temperature resistant abrasion-proof positive pressure expansion joint |
-
2011
- 2011-09-02 CN CN2011102569634A patent/CN102367903A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7341283B2 (en) * | 2004-01-29 | 2008-03-11 | Oil States Industries, Inc. | High temperature flexible pipe joint |
| CN201628044U (en) * | 2010-02-26 | 2010-11-10 | 江苏晨光波纹管有限公司 | Corrugated pipe compensator with built-in elastic connecting structure |
| CN201875348U (en) * | 2010-07-23 | 2011-06-22 | 陈晓军 | CFB boiler-used high temperature metallic expansion joint |
| CN202215891U (en) * | 2011-09-02 | 2012-05-09 | 江苏申港锅炉有限公司 | High-temperature resistant abrasion-proof positive pressure expansion joint |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635752A (en) * | 2012-03-30 | 2012-08-15 | 南通三创机械制造有限公司 | High temperature expansion joint |
| CN102661467A (en) * | 2012-03-30 | 2012-09-12 | 南通三创机械制造有限公司 | Metal corrugated pipe expansion joint |
| CN102777726A (en) * | 2012-03-30 | 2012-11-14 | 南通三创机械制造有限公司 | High-temperature expansion joint |
| CN102635753A (en) * | 2012-04-10 | 2012-08-15 | 南通三创机械制造有限公司 | Compound type high-temperature expansion joint |
| CN109681725A (en) * | 2019-01-28 | 2019-04-26 | 秦皇岛市泰德管业科技有限公司 | A kind of elasticity high temperature resistant heat insulation structure |
| CN109681725B (en) * | 2019-01-28 | 2024-03-01 | 秦皇岛市泰德管业科技有限公司 | Elastic high-temperature-resistant heat insulation structure |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120307 |