CN214579731U - Cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation - Google Patents
Cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation Download PDFInfo
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- CN214579731U CN214579731U CN202120415545.4U CN202120415545U CN214579731U CN 214579731 U CN214579731 U CN 214579731U CN 202120415545 U CN202120415545 U CN 202120415545U CN 214579731 U CN214579731 U CN 214579731U
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- rubber
- plastic heat
- steel pipe
- cotton
- heat preservation
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Abstract
The utility model discloses a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation, including steel pipe (1), the outside of steel pipe (1) has set gradually anticorrosive coating (2), the cotton layer of rubber and plastic heat preservation (3), glass cloth layer (4), pitch glue film (5) and various steel sheet (6) from inside to outside, steel pipe (1) is the spiral weld steel pipe, the thickness of the cotton layer of rubber and plastic heat preservation (3) is 60~80mm, pitch glue film (5) are made by fire-retardant type pitch. The utility model discloses a cotton cost of difficult fire rubber and plastic heat preservation is moderate, and the construction is simple, and cold insulation is effectual, adopts glass cloth, paints the fire resistance of asphalt mastic technology good, can effectively completely cut off the steam erosion, delays steel pipe corrosion rate, extension insulation construction life-span.
Description
Technical Field
The utility model relates to a cold insulation carries the field, especially a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation.
Background
With the popularization of centralized cooling in developed urban areas in south, the trend that the chilled water pipeline enters the comprehensive pipe gallery to be laid is achieved. However, referring to the relevant design and construction specifications of the urban comprehensive pipe gallery, only the design requirements of pipelines such as water supply, drainage, electric power, telecommunication, gas, heat and the like are required, and the relevant technical requirements of the freezing water pipeline are not mentioned. This causes the puzzlement to the design of regional concentrated cooling pipe gallery internal cooling water pipeline, construction. The medium of the heat distribution pipeline mainly comprises hot water and steam, and has the requirement of a heat insulation structure. The chilled water pipeline medium is low-temperature water, and the cold insulation requirement needs to be considered. If the design of the existing thermal pipeline is simply referred to, the thermal pipeline is definitely required to be a prefabricated pipe formed by tightly combining a steel pipe, a heat insulation layer and an outer protection pipe into a whole in local standards of Beijing City, i.e. urban comprehensive pipe gallery engineering technical specifications, and the prefabricated pipe conforms to the relevant regulations of national existing standards of 'high-density polyethylene outer protection pipe rigid polyurethane foam plastic prefabricated direct-buried heat insulation pipe and pipe fitting' GB/T29047 and 'glass fiber reinforced plastic outer protection layer polyurethane foam plastic prefabricated direct-buried heat insulation pipe' CJ/T129.
However, the regional chilled water pipeline is used for conveying a low-temperature medium, the low-temperature medium is generally subjected to heat exchange with a secondary chilled water system of a user through a heat exchange mode, the temperature difference between supplied water and returned water is small, the regional cooling radius is generally much smaller than the heating radius, and the temperature and pressure grade are obviously much smaller than that of a conventional thermal pipeline. The cold insulation material for the frozen water pipeline in the pipeline corridor generally does not bear external gravity when being laid in the air in the pipeline corridor except for considering the requirements of moisture resistance, corrosion resistance and fire resistance, and the construction cost is greatly increased by adopting the buried high-density polyethylene outer protective pipe rigid polyurethane foam prefabricated direct-buried heat insulation pipe, for example, the patent with the application number of CN201020577556.4 discloses a foam glass multilayer cold insulation structure pipeline, but the pipeline structure is complex and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming, provide a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation simple structure, it is with low costs, of high quality.
The purpose of the utility model is realized through the following technical scheme: the utility model provides a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation, includes the steel pipe, the outside of steel pipe has set gradually anticorrosive coating, the cotton layer of rubber and plastic heat preservation, glass cloth layer, asphalt glue film and various steel sheet from inside to outside.
Preferably, the thickness of the rubber and plastic heat-insulation cotton layer is 60-80 mm.
Preferably, the anticorrosive layer is made of glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix.
Preferably, the steel pipe is a spiral weld steel pipe.
Preferably, the asphalt glue layer is made of flame-retardant asphalt.
The utility model has the advantages of it is following: the flame-retardant rubber and plastic heat-insulation cotton is adopted, so that the cost is moderate, the construction is simple, and the cold insulation effect is enhanced; the process of winding glass cloth and coating asphalt mastic is adopted, so that the fire resistance is enhanced, the water vapor erosion is effectively isolated, the corrosion rate of the steel pipe is delayed, and the service life of the heat-insulating structure is prolonged; the outer various steel sheet structure of protecting plays dustproof and simple and easy anti-friction and bumps the effect, effectively isolates in the environment on various acid and alkali class material direct action cold insulation material, can alleviate cold insulation structure ageing.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
in the figure: 1-steel pipe, 2-anticorrosive layer, 3-rubber plastic heat-insulating cotton layer, 4-glass cloth layer, 5-asphalt glue layer and 6-color steel plate.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1 and 2, the object of the present invention is achieved by the following technical solutions: the utility model provides a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation, includes steel pipe 1, the outside of steel pipe 1 has set gradually anticorrosive coating 2, the cotton layer 3 of rubber and plastic heat preservation, glass cloth layer 4, asphalt glue film 5 and various steel sheet 6 from inside to outside.
Preferably, the thickness of the rubber and plastic heat-insulation cotton layer 3 is 60-80 mm.
Preferably, the anticorrosive layer 2 is made of glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix.
Preferably, the steel pipe 1 is a spiral welded steel pipe.
Preferably, the asphalt glue layer 5 is made of flame-retardant asphalt.
The working process of the utility model is as follows: and S1, cleaning impurities, oil stains and the like on the outer surface of the steel pipe 1 to make the surface of the steel pipe 1 smooth.
S2, uniformly coating the anticorrosive layer 2 on the outer surface of the steel pipe 1, simultaneously winding the rubber-plastic heat-preservation cotton around the outer surface of the steel pipe 1 until the rubber-plastic heat-preservation cotton completely wraps the steel pipe 1 to form a rubber-plastic heat-preservation cotton layer 3, and tightly connecting the rubber-plastic heat-preservation cotton with the steel pipe 1 after the anticorrosive layer 2 is solidified.
S3, arranging a glass cloth layer 4 on the outer side of the rubber and plastic heat-insulating cotton layer 3, arranging an asphalt glue layer 5 on the outer side of the glass cloth layer 4, and simultaneously binding a layer of color steel plate 6 on the outer side of the asphalt glue layer 5.
Claims (5)
1. The utility model provides a cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation which characterized in that: the steel pipe comprises a steel pipe (1), wherein an anticorrosive layer (2), a rubber and plastic heat-insulating cotton layer (3), a glass cloth layer (4), an asphalt glue layer (5) and a color steel plate (6) are sequentially arranged on the outer side of the steel pipe (1) from inside to outside.
2. The rubber-plastic heat-insulation cotton multilayer cold-insulation structure pipeline according to claim 1, characterized in that: the thickness of the rubber and plastic heat-insulation cotton layer (3) is 60-80 mm.
3. The rubber-plastic heat-insulation cotton multilayer cold-insulation structure pipeline according to claim 1, characterized in that: the anticorrosive layer (2) is made of glass fiber reinforced unsaturated polyester, epoxy resin and a phenolic resin matrix.
4. The rubber-plastic heat-insulation cotton multilayer cold-insulation structure pipeline according to claim 1, characterized in that: the steel pipe (1) is a spiral weld steel pipe.
5. The rubber-plastic heat-insulation cotton multilayer cold-insulation structure pipeline according to claim 1, characterized in that: the asphalt glue layer (5) is made of flame-retardant asphalt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415545.4U CN214579731U (en) | 2021-02-25 | 2021-02-25 | Cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415545.4U CN214579731U (en) | 2021-02-25 | 2021-02-25 | Cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214579731U true CN214579731U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120415545.4U Active CN214579731U (en) | 2021-02-25 | 2021-02-25 | Cotton multilayer cold insulation structure pipeline of rubber and plastic heat preservation |
Country Status (1)
| Country | Link |
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| CN (1) | CN214579731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923044A (en) * | 2022-06-23 | 2022-08-19 | 浙江大学 | Resistance-reducing heat-insulating pipeline with polished spiral weld reinforcement and resistance-reducing method thereof |
-
2021
- 2021-02-25 CN CN202120415545.4U patent/CN214579731U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923044A (en) * | 2022-06-23 | 2022-08-19 | 浙江大学 | Resistance-reducing heat-insulating pipeline with polished spiral weld reinforcement and resistance-reducing method thereof |
| CN114923044B (en) * | 2022-06-23 | 2023-09-22 | 浙江大学 | Drag-reduction heat-insulation pipeline with spiral weld seam residual height polished and drag-reduction method thereof |
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