CN2260225Y - Expansion-compensation arrangement for the outside protective pipe of directly earthed high temp. thermal insulation pipeline - Google Patents
Expansion-compensation arrangement for the outside protective pipe of directly earthed high temp. thermal insulation pipeline Download PDFInfo
- Publication number
- CN2260225Y CN2260225Y CN 96226500 CN96226500U CN2260225Y CN 2260225 Y CN2260225 Y CN 2260225Y CN 96226500 CN96226500 CN 96226500 CN 96226500 U CN96226500 U CN 96226500U CN 2260225 Y CN2260225 Y CN 2260225Y
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- CN
- China
- Prior art keywords
- compensator
- pipe
- thermal insulation
- free end
- outer protective
- 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 - Fee Related
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Abstract
The utility model relates to a compensator, particularly a compensator for outer protective pipes of a directly-buried high temperature thermal-insulation pipeline. The compensator is composed of a main operating pipe, a high temperature resistant heat-insulation layer and a polyurethane heat-insulation layer which are sequentially arranged outside the main operating pipe, and outer protective pipes of a thermal-insulation pipe piece. A sleeve pipe of the compensator is sheathed on the two adjacent outer protective pipes corresponding to the interface position of the main operating pipe. At least one end of the sleeve pipe is a free end, sealing rubber rings are arranged in ring grooves between the end surface of the free end and the outer protective pipes, and rings made of fiber glass reinforced plastics are arranged outside the sealing rubber rings. Related accidents caused by the displacement produced because of the temperature change or other reasons can be effectively prevented.
Description
The utility model relates to the outer pillar compensator of a kind of directly embedded high-temp thermal insulation pipe, is particularly suitable for all kinds of directly embedded high-temp thermal insulation pipes and adorns usefulness on the net.
Mainly form in the pipe network of directly embedded high-temp insulation in the past by main thermal insulation pipe, fixed bearing, main working pipe compensator, elbow, threeway etc. and insulation pipe fitting, usually also need outside the insulation pipe fitting thermal insulation layer of main thermal insulation pipe, to be provided with pillar outside the water-tight corrosion-proof, like this when pipe network puts into operation, although because the effect of heat preserving and insulating material, and the temperature of outer pillar still reaches 50-90 ℃, and therefore outer pillar causes axial displacement because of the linear expansion of being heated; In addition during the pipe network initial launch because under the unreal situation of backfill sand, soil, can produce the whole axial displacement about 1-2cm, because of being rigidly connected of adopting between its main working pipe and the outer pillar of pipe fitting, can't absorption compensation, cause often being drawn back or push away situation about splitting at jointing and happen occasionally, the very fast intrusion thermal insulation layer of underground water destroys pipe network and normally moves, cause shutdown maintenance, have a strong impact on normally carrying out of production.
The purpose of this utility model be to provide a kind of simple in structure, implement easily, and can effectively prevent to produce the outer pillar of the relevant accident that displacement causes, compensator because of temperature variation or other reasons.
The purpose of this utility model realizes by the following technical solutions, form by main working steel tube, its outer outer pillar of inorganic high-temperature resistant thermal insulation layer, polyurethane insulation coating and insulation pipe fitting that is provided with successively, its compensator oversleeve pipe box be loaded on the corresponding two sections adjacent outer pillars of main working pipe interface on, having an end at least is free end, rubber seal is located in the groove between free end end face and the outer pillar, its outer glass fibre reinforced plastics ring that is provided with.
Described compensator cover sleeve is provided with the material feeding auxiliary hole, and free end is provided with convex shoulder.
The utility model compared with prior art, owing to be provided with an end and two ends collocation structure freely with the corresponding outer pillar of main working steel tube interface, a series of technical measures such as glass steel loop site operation moulding in addition, and through evidence have implement easy, stable and reliable for performance, can not only effectively prevent because of temperature variation or other reasons produce the caused relevant accident of displacement, and can also be good to certain compensating action, sealed waterproof effect are arranged because of stress that geometrical shape and size error produced.
Figure is a main sectional structure schematic representation of the present utility model.
Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, main working steel tube 14 outsides are provided with inorganic high-temperature resistant thermal insulation layer 13 successively, polyurethane insulation coating and outer pillar 1,7, its with the corresponding two sections adjacent outer pillars 1 of the jointing of main working steel tube 14, be provided with compensator cover sleeve 2 between 7, one end overlaps formation fixing seal end welded together each other with outer pillar 1 with identical material, the other end is set on the outer pillar 7, and fill in to each other the annular groove with the rubber seal 5 of water-swellable, the free end of its compensator cover sleeve 2 is provided with convex shoulder 6, glass fibre cloth is twined in construction at the scene, the brushing resin, form glass steel loop 4, make compensator cover sleeve 2, rubber seal 5 becomes an organic whole with glass steel loop 4, form the scalable compensation end of waterproof, inject polyurethane heat insulation material from material feeding auxiliary hole 3 then its landolsring 12 is full of the curing back material feeding auxiliary hole 3 usefulness glass fibre reinforced plastics perforations adding water-proofing treating; Another jointing is that two ends all have the scalable collocation structure of waterproof, compensation cover sleeve 9 is enclosed within on two sections outer pillars 7,15 adjacent one another are, two ends have convex shoulder 8, hydro-expansive rubber seal ring 10 is filled in the annular groove of two ends, and glass steel loop 11 contains outside it, and its work progress is with previous identical, inject polyurethane heat insulation material from the material feeding auxiliary hole, be full of external thermal insulation breach 12, after waiting to solidify, with the stifled water-proofing treating that goes up of material feeding auxiliary hole.
Claims (2)
1. the outer pillar compensator of a directly embedded high-temp thermal insulation pipe, form by main working pipe 14, its outer outer pillar 1,7,15 of inorganic high-temperature resistant thermal insulation layer 13, polyurethane insulation coating and insulation pipe fitting that is provided with successively, it is characterized in that compensator cover sleeve 2,9 be set in the corresponding two sections adjacent outer pillars 1,7,15 of main working pipe 14 interfaces on, having an end at least is free end, rubber seal 5,10 is located in the annular groove between free end end face and the outer pillar 1,7,15, its outer glass fibre reinforced plastics ring 4,11 that is provided with.
2. compensator according to claim 1 is characterized in that described compensation cover sleeve 2,9 is provided with material feeding auxiliary hole 3, and free end is provided with convex shoulder 6,8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226500 CN2260225Y (en) | 1996-06-06 | 1996-06-06 | Expansion-compensation arrangement for the outside protective pipe of directly earthed high temp. thermal insulation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96226500 CN2260225Y (en) | 1996-06-06 | 1996-06-06 | Expansion-compensation arrangement for the outside protective pipe of directly earthed high temp. thermal insulation pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2260225Y true CN2260225Y (en) | 1997-08-20 |
Family
ID=33904861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96226500 Expired - Fee Related CN2260225Y (en) | 1996-06-06 | 1996-06-06 | Expansion-compensation arrangement for the outside protective pipe of directly earthed high temp. thermal insulation pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2260225Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981211A (en) * | 2020-08-11 | 2020-11-24 | 山东新朗华科技有限公司 | Heat distribution pipeline |
| CN112901862A (en) * | 2021-02-08 | 2021-06-04 | 天津华焱技术有限公司 | Sealing device for underground pipeline connecting protective well |
| CN113108354A (en) * | 2021-04-27 | 2021-07-13 | 中冶西北工程技术有限公司 | Three-way compensation device for heat supply pipe network |
-
1996
- 1996-06-06 CN CN 96226500 patent/CN2260225Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981211A (en) * | 2020-08-11 | 2020-11-24 | 山东新朗华科技有限公司 | Heat distribution pipeline |
| CN111981211B (en) * | 2020-08-11 | 2022-02-25 | 山东新朗华科技有限公司 | Heat distribution pipeline |
| CN112901862A (en) * | 2021-02-08 | 2021-06-04 | 天津华焱技术有限公司 | Sealing device for underground pipeline connecting protective well |
| CN113108354A (en) * | 2021-04-27 | 2021-07-13 | 中冶西北工程技术有限公司 | Three-way compensation device for heat supply pipe network |
| CN113108354B (en) * | 2021-04-27 | 2022-09-09 | 中冶西北工程技术有限公司 | Three-way compensation device for heat supply pipe network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |