CN217108568U - High-temperature-resistant heat-insulation flexible composite pipe - Google Patents
High-temperature-resistant heat-insulation flexible composite pipe Download PDFInfo
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- CN217108568U CN217108568U CN202220765271.6U CN202220765271U CN217108568U CN 217108568 U CN217108568 U CN 217108568U CN 202220765271 U CN202220765271 U CN 202220765271U CN 217108568 U CN217108568 U CN 217108568U
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- winding
- insulating
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- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000009413 insulation Methods 0.000 title abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 106
- 238000004804 winding Methods 0.000 claims abstract description 44
- 239000011241 protective layer Substances 0.000 claims abstract description 19
- 238000004321 preservation Methods 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004965 Silica aerogel Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- ICXAPFWGVRTEKV-UHFFFAOYSA-N 2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole Chemical compound C1=CC=C2OC(C3=CC=C(C=C3)C=3OC4=CC=CC=C4N=3)=NC2=C1 ICXAPFWGVRTEKV-UHFFFAOYSA-N 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 230000009286 beneficial effect Effects 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 230000001684 chronic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
- F16L9/128—Reinforced pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a high temperature resistant heat-insulating heat preservation flexible composite pipe, include: the composite pipe comprises an inner liner layer, a reinforcing layer, an inner protective layer, a heat preservation layer, a fixing layer and an outer protective layer, wherein the inner liner layer is a fluid conveying channel, the heat preservation layer comprises a third winding layer, the third winding layer comprises a silica aerogel felt, the silica aerogel felt is wound and wrapped outside the inner protective layer, the inner liner layer is in direct contact with conveying fluid, and the composite pipe has good adaptability under the high-temperature condition of thickened oil and is a temperature-resistant main body of the composite pipe; the reinforced layer has the advantages of bearing stability under high temperature and good aging resistance, and can be a single reinforced layer or a composite reinforced layer; the inner protective layer is a protective layer of the reinforcement layer; the heat-insulating layer is a heat-insulating main body of the composite pipe, has excellent heat-insulating property and has the advantages of low heat conductivity coefficient and good heat-insulating property; the utility model has the characteristics of the pipe wall is thin, be convenient for transport, high temperature resistant, thermal-insulated thermal insulation performance is good etc, can reduce the calorific loss in the viscous crude pipeline transport.
Description
Technical Field
The utility model relates to a viscous crude collection is defeated technical field, concretely relates to high temperature resistant heat-insulating heat preservation flexible composite pipe.
Background
The distribution of China's thick oil resources is wide, and statistical data shows that the thick oil reserves of oil fields such as victory oil fields, Liaohe oil fields, Tahe oil fields, Xinjiang oil fields, Bohai oil fields and the like are nearly 300 hundred million tons, so that the method has good development prospects. However, because the heavy oil has the defects of high density, high content of colloid and asphaltene and poor normal-temperature fluidity, most of the heavy oil adopts a heating conveying mode, the conveying temperature is more than 70-85 ℃, and the conveying temperature of a small amount of the heavy oil is higher than 90 ℃. The long outage time of the thick oil conveying pipeline can cause the temperature reduction of crude oil to lose fluidity, the pipeline is difficult to stop conveying and restart, and even the condensed pipe is blocked, so that production accidents are caused. In order to reduce heat loss, the outside of the thick oil conveying pipeline is often required to be coated with an insulating layer with a certain thickness.
The flexible composite pipe has a series of advantages of good flexibility, large single continuous length, high pressure bearing capacity, corrosion resistance and the like, and is widely applied to oil fields and becomes an ideal anticorrosive pipe for oil and gas fields. However, the typical structure of each type of composite pipe is generally composed of 3 layers of structures including an inner lining layer, a reinforcing layer and a protective layer, namely a composite pipe which is in accordance with the standard of flexible composite high-pressure delivery pipe (SY/T6662.2) of the 2 nd part of non-metal composite pipe for oil and gas industry or a composite pipe which is in accordance with the standard of steel skeleton reinforced thermoplastic composite continuous pipe and joint (SY/T6662.4) of the 4 th part of non-metal composite pipe for oil and gas industry. Because the heat insulation structure is not considered at the beginning of the design of the composite pipe with a typical structure, when thick oil is conveyed by the composite pipe, firstly, the inner liner layer is usually made of polyethylene and cannot adapt to the working condition of the thick oil at 70-85 ℃ or even 90 ℃ for a long time, and the composite pipe fails to work to cause oil gas leakage; secondly, the composite pipe has large linear temperature drop, high heat loss, much fuel loss and high transportation cost. Although the existing composite pipe using the crosslinked polyethylene foam as the thermal insulation material has the thermal conductivity coefficient as high as 0.047W/m.K, the thermal insulation layer of the composite pipe made of the material is used for conveying thick oil, and in order to achieve economic conveying conditions, the crosslinked polyethylene foam thermal insulation material has to keep a larger thickness, so that the composite pipe has excessively thick wall thickness and an excessively small bending radius, and is inconvenient to coil and transport.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a high temperature resistant heat insulation flexible composite pipe, which improves the heat insulation capability of the pipeline by adding a heat insulation layer in the composite pipe, and is beneficial to dealing with the problem of large temperature difference; the heat preservation layer adopts silicon dioxide gel felt, and is effectual, and occupation space is little.
The utility model adopts the following technical proposal:
a high-temperature-resistant heat-insulation heat-preservation flexible composite pipe sequentially comprises a lining layer, a reinforcing layer, an inner protective layer, a heat-preservation layer and an outer protective layer from inside to outside along the pipe diameter direction, wherein the lining layer is a fluid conveying channel, the heat-preservation layer comprises a third winding layer, the third winding layer comprises a silica aerogel felt, and the silica aerogel felt is wound and wrapped outside the inner protective layer; the heat preservation effect is realized through the good heat insulation performance of the silica aerogel felt, the outer protection layer is positioned outside the heat preservation layer and is a protection layer of the composite pipe, and preferably, the polyethylene resin or other resin materials with wear resistance, scraping resistance and chronic cracking resistance are selected.
Preferably, a fixing layer is arranged between the heat-insulating layer and the outer protective layer; the fixed layer is located the heat preservation outside, adopts high strength fiber silk or stainless steel wire to weave outside the heat preservation usually for fixed heat preservation.
Preferably, the reinforcing layer comprises a first winding layer, the first winding layer comprises a steel cord belt or a steel wire, the steel cord belt or the steel wire is wrapped with resin, and the steel cord belt or the steel wire is wound on the lining layer in the forward and reverse directions; after the steel wires wrapped by the resin are wound, the strength of the pipeline is enhanced.
Preferably, the resin on the first winding layer is fused and adhered to the lining layer, a second winding layer is arranged on the first winding layer, and the second winding layer and the first winding layer have the same structure; and heating the second winding layer to melt the resin of the first reinforcing layer, forming an integral structure with the lining layer, reinforcing the lining layer, and winding the second winding layer for reinforcement.
Preferably, the material of the second winding layer is one of carbon fiber, polyethylene fiber, aramid fiber, basalt fiber or poly-p-phenylene benzobisoxazole fiber.
Preferably, the winding angles of the first, second and third winding layers and the axial lead of the lining layer are all 55 degrees +/-5 degrees.
The utility model has the advantages that:
the utility model solves the problem of blockage caused by temperature loss in thick oil transportation by adding the insulating layer wound by the silica aerogel felt, and improves the efficiency of thick oil transportation; due to the characteristics of the silicon dioxide aerogel, the composite pipeline has certain flexibility; the enhancement layer enhances the bearing capacity of the pipeline, and is beneficial to being widely used in oil field transportation; the overall composite pipe has small occupied space and good use effect, and is beneficial to being widely used in oil field transportation.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
FIG. 1 is a schematic structural view of the present invention;
in the figure:
1-lining layer, 2-reinforcing layer, 3-inner protective layer, 4-heat insulation layer, 5-fixing layer and 6-outer protective layer.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, the high temperature resistant heat insulation flexible composite pipe sequentially comprises an inner liner 1, an enhancement layer 2, an inner protection layer 3, a heat insulation layer 4, a fixed layer 5 and an outer protection layer 6 from inside to outside along the pipe diameter direction, wherein the inner liner 1 is located at the innermost layer of the composite pipe and is a fluid conveying channel, and modified high temperature resistant cross-linked polyethylene, polyvinylidene fluoride, nylon 12, polyphenylene sulfide or other high temperature resistant resins or modified resin materials with high temperature resistance are generally preferred.
The reinforcing layer 2 is positioned outside the lining layer 1, is a composite pipe pressure bearing main body, and can be of a single structure or a composite structure. When the enhancement layer 2 is of a single structure, the enhancement layer 2 comprises a first winding layer, the first winding layer comprises high-temperature-resistant high-strength fibers, fiber ropes or steel cord belts, steel wire rope belts and steel wire belts coated with high-temperature-resistant resin, and the steel cord belts or the steel wires are wound on the lining layer 1.
When enhancement layer 2 is composite construction, the resin melting on the first winding layer is attached to inner liner 1, forms a body structure with inner liner 1, be equipped with second winding layer on the first winding layer, second winding layer and first winding layer structure are the same, and the material on second winding layer is one of carbon fiber, polyethylene fiber, aramid fiber, basalt fiber or poly p-phenylene benzobisoxazole fibre, can need to decide according to actual technological requirement when chooseing for use polyester industry filament, glass fiber or other materials.
The heat preservation 4 includes the third winding layer, the third winding layer includes silica aerogel felt, 3 outsides of protective layer including silica aerogel felt winding parcel, specific thickness can calculate the decision as required, and the winding angle on first, two and three winding layers all is 50 +/-10 with 1 axial lead of inner liner, and specific winding angle can design according to specific service environment.
The fixing layer 5 is located outside the heat insulating layer 4, and is usually woven by high-strength fiber wires or stainless steel wires outside the heat insulating layer 4 to fix the heat insulating layer 4.
The outer protective layer 6, which is located outside the insulation layer 4, is a protective layer of the composite pipe, which layer preferably comprises a wear-resistant, scratch-resistant, and chronic crack-resistant polyethylene resin or other resin material.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a high temperature resistant heat-insulating heat preservation flexible composite pipe, its characterized in that, high temperature resistant heat-insulating heat preservation flexible composite pipe includes inner liner (1), enhancement layer (2), inner protective layer (3), heat preservation (4) and outer protective layer (6) outside to by interior in proper order along the pipe diameter direction, inner liner (1) is fluid delivery passageway, heat preservation (4) include third winding layer, third winding layer includes silica aerogel felt, protective layer (3) outside including silica aerogel felt winding parcel.
2. The high-temperature-resistant heat-insulating flexible composite pipe according to claim 1, wherein a fixing layer (5) is arranged between the heat-insulating layer (4) and the outer protective layer (6).
3. The high-temperature-resistant heat-insulating heat-preserving flexible composite pipe as claimed in claim 2, wherein the reinforcement layer (2) comprises a first winding layer, the first winding layer comprises a steel cord belt or a steel wire, the steel cord belt or the steel wire is wrapped with resin, and the steel cord belt or the steel wire is wound on the inner lining layer (1) in the forward and reverse directions.
4. The high-temperature-resistant heat-insulating flexible composite pipe as claimed in claim 3, wherein the resin on the first winding layer is fused and attached to the inner liner layer (1), a second winding layer is arranged on the first winding layer, and the second winding layer and the first winding layer have the same structure.
5. The high temperature resistant, heat insulating and preserving flexible composite pipe according to claim 4, wherein the material of the second winding layer is one of carbon fiber, polyethylene fiber, aramid fiber, basalt fiber or poly-p-phenylene benzobisoxazole fiber.
6. The high-temperature-resistant heat-insulating flexible composite pipe according to claim 5, wherein the winding angles of the first, second and third winding layers are 55 degrees +/-5 degrees with the axial lead of the inner liner layer (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220765271.6U CN217108568U (en) | 2022-03-31 | 2022-03-31 | High-temperature-resistant heat-insulation flexible composite pipe |
| PCT/CN2022/133089 WO2023185011A1 (en) | 2022-03-31 | 2022-11-21 | High-temperature-resistant heat-insulating flexible composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220765271.6U CN217108568U (en) | 2022-03-31 | 2022-03-31 | High-temperature-resistant heat-insulation flexible composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217108568U true CN217108568U (en) | 2022-08-02 |
Family
ID=82578789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220765271.6U Active CN217108568U (en) | 2022-03-31 | 2022-03-31 | High-temperature-resistant heat-insulation flexible composite pipe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217108568U (en) |
| WO (1) | WO2023185011A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185011A1 (en) * | 2022-03-31 | 2023-10-05 | 江苏正道海洋科技有限公司 | High-temperature-resistant heat-insulating flexible composite pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119267659A (en) * | 2024-10-11 | 2025-01-07 | 北京中盛旭鑫环境能源科技有限公司 | A steel skeleton plastic composite pipe for coking ammonium sulfate and its preparation method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016003745A (en) * | 2014-06-19 | 2016-01-12 | エバック株式会社 | Insulated hose |
| CN204852782U (en) * | 2015-04-24 | 2015-12-09 | 河北宏广橡塑金属制品有限公司 | Oil transportation is with flexible composite plastic high pressure conveyer pipe that keeps warm |
| CN107401638A (en) * | 2016-10-11 | 2017-11-28 | 河北宏广橡塑金属制品有限公司 | Intelligent constant-temperature flexible compound oil-transporting heating pipe line and its manufacture method |
| CN110216932A (en) * | 2019-06-24 | 2019-09-10 | 江西晖能新材料有限公司 | The preparation method and flexible nano heat-insulation and heat-preservation felt of flexible nano heat-insulation and heat-preservation felt |
| CN111207249A (en) * | 2020-03-03 | 2020-05-29 | 威海鸿通管材股份有限公司 | Novel low-temperature flexible pipeline |
| CN211875334U (en) * | 2020-03-13 | 2020-11-06 | 河北海恩橡塑制品有限公司 | Lightweight ultralow temperature resistant flexible composite pipe |
| CN217108568U (en) * | 2022-03-31 | 2022-08-02 | 江苏赛弗道管道股份有限公司 | High-temperature-resistant heat-insulation flexible composite pipe |
-
2022
- 2022-03-31 CN CN202220765271.6U patent/CN217108568U/en active Active
- 2022-11-21 WO PCT/CN2022/133089 patent/WO2023185011A1/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185011A1 (en) * | 2022-03-31 | 2023-10-05 | 江苏正道海洋科技有限公司 | High-temperature-resistant heat-insulating flexible composite pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023185011A1 (en) | 2023-10-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221017 Address after: 226007 plant 5, No. 9, Zhongxiu East Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Jiangsu Zhengdao Marine Technology Co.,Ltd. Address before: Room 103, no.2-100, Fenghuang East Road, Hailing District, Taizhou City, Jiangsu Province Patentee before: Jiangsu saifudao Pipeline Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 226000 Room 101, Building 9, No. 9, Zhongxiu East Road, Chongchuan District, Nantong, Jiangsu Patentee after: Jiangsu Zhengdao Marine Technology Co.,Ltd. Country or region after: China Address before: 226007 plant 5, No. 9, Zhongxiu East Road, Chongchuan District, Nantong City, Jiangsu Province Patentee before: Jiangsu Zhengdao Marine Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |