CN201306580Y - Steel outer protective polyurethane prefabricated insulating tube - Google Patents
Steel outer protective polyurethane prefabricated insulating tube Download PDFInfo
- Publication number
- CN201306580Y CN201306580Y CNU200820124408XU CN200820124408U CN201306580Y CN 201306580 Y CN201306580 Y CN 201306580Y CN U200820124408X U CNU200820124408X U CN U200820124408XU CN 200820124408 U CN200820124408 U CN 200820124408U CN 201306580 Y CN201306580 Y CN 201306580Y
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- steel
- tube
- polyurethane
- heat preservation
- outer pillar
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Abstract
The utility model relates to a steel outer protective polyurethane prefabricated insulating tube, which comprises a working steel tube and a steel outer protective tube, wherein the working steel tube is arranged in the steel outer protective tube; the length of the working steel tube is larger than that of the steel outer protective tube; two ends of the working steel tube respectively protrude out of the steel outer protective tube; a plurality of supporting blocks are arranged outside the working steel tube; the height of the supporting blocks protruding out of the working steel tube is same; the supporting blocks radially support the steel outer protective tube; an insulating layer filling space is formed between the working steel tube and the steel outer protective tube; a polyurethane insulating layer is injected in the insulating layer filling space; and a support frame is embedded in the polyurethane insulating layer. The steel outer protective polyurethane prefabricated insulating tube is suitable for intensive heat and cold supply industries, and has the characteristics of water prevention, fire resistance, ultraviolet resistance, and the like.
Description
Technical field
The utility model relates to a kind of steel, and to protect polyurethane outward heat preservation pipe prefabricated, and referring in particular to a kind of steel that has characteristics such as waterproof, fire-resistant, uvioresistant concurrently that is applicable to central heat supply/cooling industry, to protect polyurethane outward heat preservation pipe prefabricated.
Background technique
Develop rapidly along with city heat supply network, urban construction and field of petrochemical industry, thermal insulation pipe has also obtained application more and more widely, particularly to built on stilts thermal insulation pipe, because its cost is cheap relatively, construction is relative convenient with maintenance, has obtained especially using widely.Yet it is freezing that the built on stilts thermal insulation pipe outside being exposed to needs often to face wind and weather and sunshine, and these abominable physical environments have had a strong impact on the service life of built on stilts thermal insulation pipe.Existing built on stilts thermal insulation pipe is mainly by working steel tube at present, and thermal insulation layer and external protection constitute, and wherein thermal insulation layer is one deck perlite or the glass fibre cotton that is wrapped in the working steel tube outside.According to the difference of external protection, existing built on stilts thermal insulation pipe mainly contains following two classes.
It is epoxide coal bituminous that one class is that the PE take-up strap adds.The PE take-up strap adds the epoxide coal bituminous combustibility that has, and is relatively poor by its external protection sealing, heat insulating ability and refractory nature that forms, and is damaged easily, and aging easily under ultraviolet irradiation, the life-span is low, generally about 10 years.In addition, by its built on stilts thermal insulation pipe resistance to pressure, impact and corrosion resistance that forms also relatively a little less than.
Another kind of is the iron sheet reel; promptly adopt iron sheet to be coated on the outside external protection that forms barrel shaped of above-mentioned thermal insulation layer; its side at external protection forms a seam; this seam can influence the sealing of external protection, and then causes water proofing property, heat insulating ability and the resistance to pressure of such built on stilts thermal insulation pipe poor.And, because iron sheet reel long term exposure is accepted wind and weather and is also caused external protection to be corroded easily in air.
Also there is following deficiency in above-mentioned existing built on stilts thermal insulation pipe in practical engineering application:
Shortcomings such as 1, above-mentioned existing built on stilts thermal insulation pipe all can't carry out prefabrication, need carry out the winding work of thermal insulation layer at the construction field (site), causes efficiency of construction on the low side thus, and the amount of labour is big.And described thermal insulation pipe joint installation procedure complexity, and be difficult for the accurate consumption of determining pipeline, thermal insulating material, increased freight charges, cause the construction cost height.
2, above-mentioned existing built on stilts thermal insulation pipe all is unsuitable for buried-pipe laying, one section needs is imbedded underground in pipe laying, when another section needs to make somebody a mere figurehead, above-mentioned existing making somebody a mere figurehead between thermal insulation pipe and the buried pipeline owing to the difference on structure, the material, when the temperature variation of ambient temperature, conveying material, the different pipelines of joint can produce the different variations of expanding with heat and contract with cold, thereby will influence the working life of pipeline.Simultaneously, also can cause conveying material between the pipeline of joint upstream and downstream, to produce temperature difference owing to the difference of heat insulation effect between the different pipelines, serious even quality that can influence conveying material.
The model utility content
The purpose of this utility model provides a kind of steel, and to protect polyurethane outward heat preservation pipe prefabricated, and it is heat preservation pipe prefabricated especially to provide a kind of steel that has characteristics such as waterproof, fire-resistant, uvioresistant concurrently that is applicable to central heat supply/cooling industry to protect polyurethane outward.
For reaching above-mentioned purpose, the steel that the utility model provides protects heat preservation pipe prefabricated working steel tube and the outer pillar of steel of including of polyurethane outward, described working steel tube is located in the outer pillar of described steel, and the length of described working steel tube is greater than the length of the outer pillar of described steel, and two ends protrude out the outer pillar of described steel respectively; The outside of described working steel tube is provided with a plurality of support blocks, and the height that each described support block radially protrudes described working steel tube is all identical, the outer pillar of the described steel of described support block radial support; Form the thermal insulation layer packing space between the outer pillar of described working steel tube and described steel, be marked with polyurethane insulation coating in described thermal insulation layer packing space, support frame as described above is embedded in the described polyurethane insulation coating.
In the utility model, outside sheathed a plurality of steel bands that are parallel to each other of described working steel tube, described steel band constitutes the circle of sealing, and described support block is distributed on the circumference of described steel band.
In the utility model, the external helicoid of described working steel tube twines a steel band, and described support block is distributed on the described steel band.
In the utility model, the outer pillar of described steel is a Coating Steel Pipe.
In the utility model, the outer pillar of described steel is made by galvanized steel plain sheet, in the shape of a spiral the snap-in shape.
In the utility model, the two sides of described galvanized steel plain sheet is equipped with zinc coat.
In the utility model, the thickness of the zinc coat on described galvanized steel plain sheet two sides is identical.
In sum, steel of the present utility model protects outward that polyurethane is heat preservation pipe prefabricated to have a following advantage:
1, need to carry out thermal insulation layer winding work at the construction field (site) different with existing built on stilts thermal insulation pipe, steel of the present utility model protects the heat preservation pipe prefabricated finished product thermal insulation pipe for all being prefabricated in the factory and finishing of polyurethane outward, only need dock described heat preservation pipe prefabricated getting final product successively at the construction field (site).Therefore on-the-spot installation procedure is simple, efficient is high, strong operability, and can protect the heat preservation pipe prefabricated consumption of polyurethane outward by the budget steel, has reduced construction cost.
2, to be unsuitable for buried-pipe laying different with existing built on stilts thermal insulation pipe, steel of the present utility model protect outward polyurethane heat preservation pipe prefabricated except can make somebody a mere figurehead lay, can also carry out buried-pipe laying, one section needs is imbedded underground in pipe laying, when another section needs to make somebody a mere figurehead, because the buried-pipe laying section can adopt identical thermal insulation pipe with the built on stilts section of laying, therefore can realize good butt joint, when the temperature variation of ambient temperature, conveying material, the pipeline of joint can not produce the different variations of expanding with heat and contract with cold.Simultaneously, also can avoid owing to conveying material produces the defective that temperature difference influences the conveying material quality between the pipeline of joint upstream and downstream.
3, the outer pillar of described steel of the present utility model is processed into spiral snap-in shape by the zinc-plated steel plate of two sides uniform thickness, therefore the outer pillar of the steel of described spiral snap-in shape not only has refractory nature, corrosion resistance and uviolresistance, also can glue well and be integral, improve heat insulating ability of the present utility model, resistance to pressure and water proofing property with polyurethane insulation coating.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 protects the heat preservation pipe prefabricated structural representation of polyurethane outward for steel of the present utility model;
Fig. 2 is a support block structural representation of the present utility model.
Embodiment
Understand for technical characteristics of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
As shown in Figure 1, steel of the present utility model protects heat preservation pipe prefabricated working steel tube 1 and the outer pillar 2 of steel that includes specific length of polyurethane outward, described working steel tube 1 is located in the outer pillar 2 of described steel, the length of described working steel tube 1 is greater than the length of the outer pillar 2 of described steel, and two ends protrude out the outer pillar 2 of described steel respectively; The external stability of described working steel tube 1 has a plurality of support blocks 32, the height that each described support block 32 radially protrudes described working steel tube 1 is all identical, can the radial support steel outer pillar 2 of described support block 32 makes the outer pillar 2 of working steel tube 1 and steel roughly coaxial, between formation thermal insulation layer packing space.Inject polyurethane between pillar 2 and the described working steel tube 1 in the thermal insulation layer packing space and form polyurethane insulation coating 4 through the foaming back outside described steel, described support block 32 is embedded in the described polyurethane insulation coating 4.
With reference to shown in Figure 2, for the ease of described support block 32 being fixed on the outside assigned position of working steel tube 1, the utility model is preferably at outside sheathed a plurality of steel bands that are parallel to each other 31 of described working steel tube 1, described steel band 31 constitutes the circle of sealing, described support block 32 is distributed on the circumference of described steel band 31, and is fixed on the outside of described working steel tube 1 by described steel band 31.
The set-up mode of the utility model steel band can also be for being spirally wound on the outside of working steel tube; support block is distributed on the outer pillar of the described steel of described steel band upper support; the utility model is not limited this; any structure that described support block can be fixed on described working steel tube outside all should be encompassed within the protection domain of the present utility model.
The outer pillar of steel of the present utility model can be a Coating Steel Pipe with good refractory nature, corrosion resistance and uviolresistance, therefore, it is heat preservation pipe prefabricated when built on stilts laying that steel of the present utility model protects polyurethane outward, long term exposure is in air under the sunlight, can resist abominable physical environments such as wind and weather and UV-b radiation, life-span is long, is generally about 30 years.
For outer pillar of described steel and polyurethane insulation coating can be glued and be integral well, improve heat insulating ability of the present utility model, resistance to pressure and water proofing property, the outer pillar of steel of the present utility model can also be processed into by the zinc-plated steel plate of two sides uniform thickness.For example can adopt the technology of mechanical seaming moulding, be that 1.2mm ± 0.05mm, zinc-plated amount are not less than 120G/M with thickness
2Galvanized steel plain sheet be processed into spiral snap-in shape, the outer pillar of the steel of described spiral snap-in shape, its seaming slit is less than 0.5mm, the seaming sealing intensity is the withstand voltage 2000PA of every square meter, inleakage is less than 1.64m
3/ hm
2
Need to twine operation at the construction field (site) different with existing built on stilts thermal insulation pipe, steel of the present utility model protects the heat preservation pipe prefabricated finished product thermal insulation pipe for all being prefabricated in the factory and finishing of polyurethane outward, promptly be processed into the thermal insulation pipe of certain-length in advance, only need dock described prefabricated thermal insulation pipe successively at the construction field (site) and get final product in factory.Therefore on-the-spot installation procedure is simple, efficient is high, strong operability, and can protect the heat preservation pipe prefabricated consumption of polyurethane outward by the budget steel, has reduced construction cost.
To be unsuitable for buried-pipe laying different with existing built on stilts thermal insulation pipe, steel of the present utility model protect outward polyurethane heat preservation pipe prefabricated except can make somebody a mere figurehead lay, can also carry out buried-pipe laying, therefore, one section needs is imbedded underground in pipe laying, when another section needs to make somebody a mere figurehead, because the buried-pipe laying section can adopt identical thermal insulation pipe with the built on stilts section of laying, therefore can realize good butt joint, when the temperature variation of ambient temperature, conveying material, the pipeline of joint can not produce the different variations of expanding with heat and contract with cold.Simultaneously, also can avoid owing to conveying material produces the defective that temperature difference influences the conveying material quality between the pipeline of joint upstream and downstream.
The above, it only is specific embodiment of the utility model, be not in order to limiting scope of the present utility model, i.e. equivalent variations and the modification of doing according to the utility model claim and description generally all should still belong in the scope that the utility model patent contains.
Claims (7)
1, it is heat preservation pipe prefabricated that a kind of steel protects polyurethane outward, it is characterized in that, described steel protects heat preservation pipe prefabricated working steel tube and the outer pillar of steel of including of polyurethane outward, described working steel tube is located in the outer pillar of described steel, the length of described working steel tube is greater than the length of the outer pillar of described steel, and two ends protrude out the outer pillar of described steel respectively; The outside of described working steel tube is provided with a plurality of support blocks, and the height that each described support block radially protrudes described working steel tube is all identical, the outer pillar of the described steel of described support block radial support; Form the thermal insulation layer packing space between the outer pillar of described working steel tube and described steel, be marked with polyurethane insulation coating in described thermal insulation layer packing space, support frame as described above is embedded in the described polyurethane insulation coating.
2, it is heat preservation pipe prefabricated that steel as claimed in claim 1 protects polyurethane outward, it is characterized in that, and outside sheathed a plurality of steel bands that are parallel to each other of described working steel tube, described steel band constitutes the circle of sealing, and described support block is distributed on the circumference of described steel band.
3, it is heat preservation pipe prefabricated that steel as claimed in claim 1 protects polyurethane outward, it is characterized in that, the external helicoid of described working steel tube twines a steel band, and described support block is distributed on the described steel band.
4, it is heat preservation pipe prefabricated to protect polyurethane outward as claim 1 or 2 or 3 described steel, it is characterized in that, the outer pillar of described steel is a Coating Steel Pipe.
5, it is heat preservation pipe prefabricated to protect polyurethane outward as claim 1 or 2 or 3 described steel, it is characterized in that, the outer pillar of described steel is made by galvanized steel plain sheet, in the shape of a spiral the snap-in shape.
6, it is heat preservation pipe prefabricated that steel as claimed in claim 5 protects polyurethane outward, it is characterized in that, the two sides of described galvanized steel plain sheet is equipped with zinc coat.
7, it is heat preservation pipe prefabricated that steel as claimed in claim 6 protects polyurethane outward, it is characterized in that, the thickness of the zinc coat on described galvanized steel plain sheet two sides is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820124408XU CN201306580Y (en) | 2008-12-05 | 2008-12-05 | Steel outer protective polyurethane prefabricated insulating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820124408XU CN201306580Y (en) | 2008-12-05 | 2008-12-05 | Steel outer protective polyurethane prefabricated insulating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306580Y true CN201306580Y (en) | 2009-09-09 |
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ID=41099046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820124408XU Expired - Lifetime CN201306580Y (en) | 2008-12-05 | 2008-12-05 | Steel outer protective polyurethane prefabricated insulating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306580Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135080A (en) * | 2015-08-06 | 2015-12-09 | 唐山兴邦管道工程设备有限公司 | Prefabricated overhead insulating pipe and outer sheath rolling molding device thereof |
| CN109664432A (en) * | 2018-12-24 | 2019-04-23 | 中国航空制造技术研究院 | A kind of complex section structure tubulose composite material and preparation method |
| CN111946925A (en) * | 2020-08-14 | 2020-11-17 | 青岛华仕达机器股份有限公司 | Pipe penetrating device for elbow heat-preservation pipe |
-
2008
- 2008-12-05 CN CNU200820124408XU patent/CN201306580Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135080A (en) * | 2015-08-06 | 2015-12-09 | 唐山兴邦管道工程设备有限公司 | Prefabricated overhead insulating pipe and outer sheath rolling molding device thereof |
| CN105135080B (en) * | 2015-08-06 | 2017-04-05 | 唐山兴邦管道工程设备有限公司 | A kind of prefabricated built on stilts insulating tube and its oversheath rolling forming device |
| CN109664432A (en) * | 2018-12-24 | 2019-04-23 | 中国航空制造技术研究院 | A kind of complex section structure tubulose composite material and preparation method |
| CN111946925A (en) * | 2020-08-14 | 2020-11-17 | 青岛华仕达机器股份有限公司 | Pipe penetrating device for elbow heat-preservation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
|
| CX01 | Expiry of patent term |