CN219712737U - Flame-retardant prefabricated overhead heat-insulation steam pipeline - Google Patents
Flame-retardant prefabricated overhead heat-insulation steam pipeline Download PDFInfo
- Publication number
- CN219712737U CN219712737U CN202320646840.XU CN202320646840U CN219712737U CN 219712737 U CN219712737 U CN 219712737U CN 202320646840 U CN202320646840 U CN 202320646840U CN 219712737 U CN219712737 U CN 219712737U
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- CN
- China
- Prior art keywords
- layer
- heat
- flame
- heat preservation
- insulating
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Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 21
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 title claims description 17
- 229920002635 polyurethane Polymers 0.000 claims abstract description 11
- 239000004814 polyurethane Substances 0.000 claims abstract description 11
- 238000005187 foaming Methods 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000004321 preservation Methods 0.000 claims description 14
- 239000000741 silica gel Substances 0.000 claims description 14
- 229910002027 silica gel Inorganic materials 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 8
- 239000004965 Silica aerogel Substances 0.000 claims description 7
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 238000003763 carbonization Methods 0.000 abstract description 5
- 239000003973 paint Substances 0.000 description 3
- 239000004964 aerogel Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model relates to the technical field of steam pipelines, in particular to a flame-retardant prefabricated overhead heat-insulating steam pipeline, which comprises a core pipe, wherein the outer side of the core pipe is sequentially coated with a soft heat-insulating layer, a hard heat-insulating layer, a polyurethane foaming layer and an outer protection spiral air pipe, and a heat-insulating flame-retardant layer is arranged between the polyurethane foaming layer and the outer protection spiral air pipe; the utility model can effectively avoid carbonization damage of the polyurethane foaming layer caused by high temperature, and improve the safety and the service life of the pipeline.
Description
Technical Field
The utility model relates to the technical field of steam pipelines, in particular to a flame-retardant prefabricated overhead heat-insulation steam pipeline.
Background
The steam insulating pipe is generally used for the transmission of high-temperature steam, and thus is widely used in the field of municipal heating. The steam heat-insulating pipe is mainly divided into a direct-buried steam heat-insulating pipe and an overhead steam heat-insulating pipe, and the structure of the existing prefabricated overhead heat-insulating steam pipeline is as follows from inside to outside: core pipe, soft heat preservation, calcium silicate stereoplasm heat preservation, polyurethane foaming layer and outer spiral tuber pipe of protecting, because long defeated overhead pipeline generally lays in town road both sides, and steam heat preservation pipe is whole high temperature resistant and fire resistance is not good, can not carry out effectual separation to external high temperature and fire source, and polyurethane is not high temperature resistant, and the local intensity inefficacy of easy carbonization messenger pipeline produces the influence to pipeline operation safety.
Disclosure of Invention
The utility model aims to provide a flame-retardant prefabricated overhead heat-insulating steam pipeline, which effectively avoids carbonization damage caused by high temperature influence on a polyurethane foaming layer, improves the safety of the pipeline and prolongs the service life of the pipeline.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the utility model provides a fire-retardant type prefabricated overhead heat preservation steam pipe, includes the core pipe, the outside of core pipe has coated in proper order soft heat preservation, stereoplasm heat preservation, polyurethane foam layer and outer spiral duct that protects, be provided with thermal-insulated fire-retardant layer between polyurethane foam layer and the outer spiral duct that protects.
Further, the heat-insulating flame-retardant layer comprises a silica gel fireproof cloth layer and a silica aerogel felt layer.
Further, the silica gel fireproof cloth layers are arranged on the inner side and the outer side of the silica gel felt layer.
Further, the outer side wall of the outer protection spiral air pipe is coated with a heat insulation coating layer.
Further, the heat-insulating paint layer is composite magnesium aluminum silicate heat-insulating paint.
Further, the thickness of the heat insulation coating layer is 5-20mm.
The beneficial effects of the utility model are as follows:
the heat insulation and flame retardance of the pipeline are improved by arranging the heat insulation and flame retardance layer, so that the polyurethane foaming layer is effectively prevented from being affected by high temperature and is damaged by carbonization, and the safety and the service life of the pipeline are improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals: a core tube 1; a soft heat-insulating layer 2; a hard heat-insulating layer 3; a polyurethane foam layer 4; an outer protection spiral duct 5; a heat insulating flame retardant layer 6; a silica gel fireproof cloth layer 61; a silica aerogel blanket 62; a layer 7 of heat insulating paint.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a flame-retardant prefabricated overhead heat-insulating steam pipeline comprises a core pipe 1, wherein the outer side of the core pipe 1 is sequentially coated with a soft heat-insulating layer 2, a hard heat-insulating layer 3, a polyurethane foaming layer 4 and an outer protection spiral air pipe 5, and is characterized in that: a heat-insulating flame-retardant layer 6 is arranged between the polyurethane foaming layer 4 and the outer protection spiral duct 5.
The heat-insulating flame-retardant layer 6 comprises a silica gel fireproof cloth layer 61 and a silica aerogel felt layer 62; the silica gel felt layer 62 is provided with a silica gel fireproof cloth layer 61 on both inner and outer sides.
The outer side wall of the outer protection spiral air pipe 5 is coated with a heat insulation coating layer 7; the heat insulation coating layer 7 is a composite magnesium aluminum silicate heat insulation coating; the thickness of the heat insulation coating layer 7 is 5-20mm.
Working principle: the silica aerogel is a porous solid material with a dispersion medium being gas, the thermal conductivity coefficient of the aerogel felt made of the silica aerogel is 0.02W/(m.K), the silica gel fireproof cloth is made of high-temperature resistant, corrosion-resistant and high-strength glass fiber cloth, the silica gel fireproof cloth is formed by calendaring or dipping the organic silicon rubber, the silica gel fireproof cloth is a high-performance and multi-purpose composite material, the heat insulation and flame retardance layer 6 formed by the silica aerogel felt layer 62 and the silica gel fireproof cloth layer 61 has good heat insulation and flame retardance, the heat insulation and flame retardance of the whole pipeline can be further improved by coating the heat insulation and flame retardance layer 7 on the outer side wall of the outer protection spiral air pipe 5, the carbonization damage of the polyurethane foaming layer due to the influence of high temperature is effectively avoided, and the safety and the service life of the pipeline are improved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (6)
1. The utility model provides a fire-retardant type prefabricated overhead heat preservation steam conduit, includes core pipe (1), the outside of core pipe (1) cladding has soft heat preservation (2), stereoplasm heat preservation (3), polyurethane foam layer (4) and outer spiral duct (5) of protecting in proper order, its characterized in that: a heat-insulating flame-retardant layer (6) is arranged between the polyurethane foaming layer (4) and the outer protection spiral air pipe (5).
2. The flame retardant prefabricated overhead heat preservation steam pipe according to claim 1, wherein: the heat-insulating flame-retardant layer (6) comprises a silica gel fireproof cloth layer (61) and a silica aerogel felt layer (62).
3. The flame retardant prefabricated overhead heat preservation steam pipe according to claim 2, characterized in that: and silica gel fireproof cloth layers (61) are arranged on the inner side and the outer side of the silica gel felt layer (62).
4. The flame retardant prefabricated overhead heat preservation steam pipe according to claim 1, wherein: the outer side wall of the outer protection spiral air pipe (5) is coated with a heat insulation coating layer (7).
5. The flame retardant prefabricated overhead heat preservation steam pipe according to claim 4, wherein: the heat-insulating coating layer (7) is a composite magnesium aluminum silicate heat-insulating coating.
6. The flame retardant prefabricated overhead heat preservation steam pipe according to claim 5, wherein: the thickness of the heat insulation coating layer (7) is 5-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320646840.XU CN219712737U (en) | 2023-03-29 | 2023-03-29 | Flame-retardant prefabricated overhead heat-insulation steam pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320646840.XU CN219712737U (en) | 2023-03-29 | 2023-03-29 | Flame-retardant prefabricated overhead heat-insulation steam pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219712737U true CN219712737U (en) | 2023-09-19 |
Family
ID=88000061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320646840.XU Active CN219712737U (en) | 2023-03-29 | 2023-03-29 | Flame-retardant prefabricated overhead heat-insulation steam pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219712737U (en) |
-
2023
- 2023-03-29 CN CN202320646840.XU patent/CN219712737U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |