CN207195864U - A kind of antidetonation heat distribution pipeline - Google Patents
A kind of antidetonation heat distribution pipeline Download PDFInfo
- Publication number
- CN207195864U CN207195864U CN201721211922.2U CN201721211922U CN207195864U CN 207195864 U CN207195864 U CN 207195864U CN 201721211922 U CN201721211922 U CN 201721211922U CN 207195864 U CN207195864 U CN 207195864U
- Authority
- CN
- China
- Prior art keywords
- antidetonation
- tube
- distribution pipeline
- heat
- heat distribution
- 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
Links
Abstract
The utility model discloses a kind of antidetonation heat distribution pipeline, belong to heat supply pipeline, its structure includes working steel tube, heat-insulation layer and outer protection tube, described working steel tube, heat-insulation layer and outer protection tube is set gradually from inside to outside, antidetonation inner tube is provided with the inside of described working steel tube, this four part of described antidetonation inner tube, working steel tube, heat-insulation layer and outer protection tube is combined closely.Compared with prior art, a kind of antidetonation heat distribution pipeline of the present utility model has the characteristics that antidetonation, fatigue resistance and good easy welding performance, thus has good application value.
Description
Technical field
A kind of heat supply pipeline is the utility model is related to, especially a kind of antidetonation heat distribution pipeline.
Background technology
Heat distribution pipeline is the key components of urban heating pipe network system, and typically directly buried installation is certain under earth's surface
Depth, the conveying HTHP hot water in warm season, pipeline, its operating pressure≤2.5MPa, hot water temperature≤200 DEG C, therefore
Its safe and environment-friendly requirement is higher.
Earthquake is a kind of serious natural calamity that can not resist, and is greatly damaged with safety belt to national wealth and people's lives
Lose, the destruction to heat supply pipeline is also huge, such as because earthquake causes ground rupture, fault movement or slip, easily causes heat
The destruction of hydraulic piping, it is mainly shown as that body tears, fractureed, these destructions can cause the large area of heating system to paralyse even
The destruction of whole heating system, it is also possible to cause other secondary disasters.
Current insulating tube, it is mostly three-in-one structure, has and be followed successively by working steel tube, heat-insulation layer, outer shield from inside to outside
Pipe.And current most of urban heating pipe networks, in design it is not intended that function of seismic resistance.People's Republic of China's professional standard
GJJ34-2010《Urban heating design of pipe networks specification》In to operating pressure≤2.5MPa, the heating tube of hot water temperature≤300 DEG C
Road, for the tubulation steel plate highest level used for Q235B, the steel plate is only most common carbon structural steels, performs the Chinese people
Republic's standard GB/T/T700-2006《Carbon structural steels》, the Mn contents of the steel are higher, have been up to 1.40%, pure
Spend poor, as harmful element P, S content is higher, maximum 0.045%, tensile strength lower limit is only 370MPa.Therefore, by
The steel pipe that the steel plate is welded, have not antidetonation, be not easy to weld, the defects of welding crack sensibility is high.
Utility model content
Technical assignment of the present utility model is to provide a kind of antidetonation heat distribution pipeline for above-mentioned deficiency of the prior art, should
A kind of antidetonation heat distribution pipeline has the characteristics of antidetonation, fatigue resistance and good easy welding performance.
Technical scheme is used by the utility model solves its technical problem：It includes working steel tube, heat-insulation layer and outer
Pillar, described working steel tube, heat-insulation layer and outer protection tube are set gradually from inside to outside, are provided with the inside of described working steel tube
Antidetonation inner tube, this four part of described antidetonation inner tube, working steel tube, heat-insulation layer and outer protection tube are combined closely.
Described antidetonation inner tube is welded by Q235GJB steel plate for building structure.
Combined closely between described antidetonation inner tube and working steel tube using vacuum laser welding manner.
The wall thickness of described antidetonation inner tube is 4-20mm.
The internal diameter of described antidetonation inner tube is 300-1400mm.
Described working steel tube is welded using Q235B carbon constructional steel plates.
Described heat-insulation layer is RPUF.
Described outer protection tube is made up of high-density polyethylene resin.
Its antidetonation inner tube is welded using Q235GJB steel plate for building structure.Compared with the steel pipe of Q235B materials, its
Mn upper content limits are reduced to 1.20% in chemical composition, and carbon equivalent and welding crack sensibility index is greatly lowered；Maximum P
Content is reduced to 0.025%, and maximum S contents are reduced to 0.015%, and the degree of purity of steel plate is obviously improved；To most in performance indications
Small tensile strength requirement improves 30MPa, adds yield tensile ratio, carbon equivalent and welding crack sensibility index performance.Therefore, by
The antidetonation inner tube of Q235GJB steel plates welding has good cold deformation ability, higher plastic deformation function and excellent resistance to tired
Labor damage capability, that is, have good shockproof and shock resistance, meanwhile, the antidetonation inner tube of the Anti-seismic because have relatively low carbon equivalent with
Crack-sensitivity sex index, make pipeline be easier to weld, even without preheating, welding efficiency can be greatly improved, shorten construction peace
Fill the duration.
Compared to the prior art a kind of antidetonation heat distribution pipeline of the present utility model, has beneficial effect following prominent：Tool
There are higher tensile strength, lower yield tensile ratio, while upper limit requirement set to carbon equivalent and welding crack sensibility index,
Therefore the pipeline has antidetonation, fatigue resistance and good easy welding performance, is suitable in earthquake-prone region and actively band
Promote the use of.
Brief description of the drawings
Accompanying drawing 1 is a kind of transverse cross-sectional view of antidetonation heat distribution pipeline；
Accompanying drawing 2 is a kind of longitudinal sectional drawing of antidetonation heat distribution pipeline；
Description of reference numerals：1st, working steel tube, 2, heat-insulation layer, 3, outer protection tube, 4, antidetonation inner tube.
Embodiment
A kind of antidetonation heat distribution pipeline of the present utility model is described in detail below with reference to Figure of description 1 and accompanying drawing 2.
A kind of antidetonation heat distribution pipeline of the present utility model, its structure include working steel tube 1, heat-insulation layer 2 and outer protection tube 3, institute
Working steel tube 1, heat-insulation layer 2 and the outer protection tube 3 stated are set gradually from inside to outside, and the inner side of described working steel tube 1 is provided with anti-
Inner tube 4 is shaken, described antidetonation inner tube 4, working steel tube 1, heat-insulation layer 2 and outer protection tube 3 are four that a kind of four part is combined closely
Integral structure.
Described antidetonation inner tube 4 is welded by Q235GJB steel plate for building structure.Thus pipeline is set to be provided with antidetonation work(
Can, the shortcomings that overcoming using traditional carbon steel.
Combined closely between described antidetonation inner tube 4 and working steel tube 1 using vacuum laser welding manner.
According to current urban heating design specification, the wall thickness of antidetonation inner tube 4 increases with the increase of caliber, and wall thickness is general
For 4-20mm, internal diameter 300-1400mm, using straight weld or spiral welding, 4 length of antidetonation inner tube≤12m；
Described working steel tube 1 is welded using Q235B carbon constructional steel plates.
Described outer protection tube 3 uses the high-density polyethylene resin extrusion molding of PE80 levels or higher level, should in resin
Add the additives such as antioxidant, ultra-violet stabilizer, carbon black；Heat-insulation layer 2 uses RPUF, is by special
The high molecular polymer that equipment forms through high-pressure foam, there is relatively low thermal conductivity factor, be a kind of widely used pipe insulation
Material.
Antidetonation inner tube 4 uses Q235GJB steel plate for building structure welding manufactures, compared with traditional carbon constructional steel plate
Compared with, yield tensile ratio, carbon equivalent and welding crack sensibility index performance are added, while P, S content are reduced, it is strong to improve tension
Index is spent, therefore the pipeline has antidetonation, fatigue resistance and good easy welding performance, ground caused by resisting earthquake is broken
Split, fault movement or slip, can effectively prevent body from tearing, fractureing, be suitable in earthquake-prone region and actively band is promoted
Use.
Illustrative embodiments listed above are only not to described by the utility model for understanding that the utility model is used
The restriction of technical scheme, the those of ordinary skill about field, on the basis of technical scheme described in claim, it can also make
Go out a variety of changes or deformation, all equivalent changes or deformation should all cover claims of the present utility model it
It is interior.Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (8)
1. a kind of antidetonation heat distribution pipeline, including working steel tube, heat-insulation layer and outer protection tube, described working steel tube, heat-insulation layer and outer
Pillar is set gradually from inside to outside, it is characterized in that：Antidetonation inner tube is provided with the inside of described working steel tube, in described antidetonation
Combine closely this four part of pipe, working steel tube, heat-insulation layer and outer protection tube.
2. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：Described antidetonation inner tube is built by Q235GJB
Building structure is welded with steel plate.
3. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：Described antidetonation inner tube and working steel tube it
Between combined closely using vacuum laser welding manner.
4. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：The wall thickness of described antidetonation inner tube is 4-
20mm。
5. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：The internal diameter of described antidetonation inner tube is 300-
1400mm。
6. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：Described working steel tube uses Q235B carbon
Plain structural steel and iron is welded.
7. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：Described heat-insulation layer is rigid polyurethane foam
Foam plastics.
8. a kind of antidetonation heat distribution pipeline according to claim 1, it is characterized in that：Described outer protection tube is by high density polyethylene (HDPE)
Resin is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211922.2U CN207195864U (en) | 2017-09-20 | 2017-09-20 | A kind of antidetonation heat distribution pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211922.2U CN207195864U (en) | 2017-09-20 | 2017-09-20 | A kind of antidetonation heat distribution pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207195864U true CN207195864U (en) | 2018-04-06 |
Family
ID=61789806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721211922.2U Expired - Fee Related CN207195864U (en) | 2017-09-20 | 2017-09-20 | A kind of antidetonation heat distribution pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207195864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595401A (en) * | 2018-11-22 | 2019-04-09 | 江苏洁润管业有限公司 | A kind of aeroge steel modeling thermal pipe |
-
2017
- 2017-09-20 CN CN201721211922.2U patent/CN207195864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595401A (en) * | 2018-11-22 | 2019-04-09 | 江苏洁润管业有限公司 | A kind of aeroge steel modeling thermal pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104089104B (en) | The production method of foam insulated pipes and foam insulated pipes | |
| CN106917406A (en) | A kind of antifreeze foundation pile and its construction method for Frozen Ground Area photovoltaic bracket | |
| CN214063001U (en) | Heat insulation and dissipation supporting structure suitable for high-ground-temperature tunnel | |
| CN207195864U (en) | A kind of antidetonation heat distribution pipeline | |
| CN205479792U (en) | PVC -U double -walled bellows | |
| CN204592601U (en) | The prefabricated composite adiabatic tubular construction of a kind of nanoporous aerogel | |
| CN209642270U (en) | A kind of novel power cable protection pipe | |
| CN207005476U (en) | A kind of PP R polyurethane thermal pipes | |
| CN204127495U (en) | The prefabricated direct-buried crosslinked polyethylene of intelligence two-tube reducing work thermal insulation pipe | |
| CN206977004U (en) | A kind of CPVC cable protection pipes | |
| CN104729371A (en) | High-temperature blast hole thermal insulation sheath, blasting assembly and construction method | |
| CN206001105U (en) | A kind of jet chimney embedded underground structure | |
| CN206124007U (en) | Abandonment PE pipe presses broken device | |
| CN205557528U (en) | Set up offshore wind turbines foundation grouting bushing structure of annular | |
| CN207298229U (en) | A kind of prefabricated thermal insulation pipe fitting | |
| CN210069164U (en) | Flexible hose for oil tank drainage system | |
| CN211715953U (en) | PVC pipe with strong toughness | |
| CN217634322U (en) | Cold-resistant fireproof steel belt pipe | |
| CN208022158U (en) | The oil storage tank with inside lining anti-corrosive layer with double-walled construction | |
| CN206257397U (en) | A kind of novel anti-leakage winding pipe | |
| CN206929452U (en) | A kind of combustion gas PE multiple tubes | |
| CN206429797U (en) | The band prefabricated direct-buried heat insulation elbow of the seamless polyethylene of straight length | |
| CN211667404U (en) | Resistance to compression insulating tube | |
| CN207034424U (en) | A kind of combined type polyurethane thermal pipe | |
| CN205896438U (en) | Explosion -proof insulating tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20180920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |