CN106764118A - A kind of intelligent heat preserving pipe - Google Patents
A kind of intelligent heat preserving pipe Download PDFInfo
- Publication number
- CN106764118A CN106764118A CN201510835907.4A CN201510835907A CN106764118A CN 106764118 A CN106764118 A CN 106764118A CN 201510835907 A CN201510835907 A CN 201510835907A CN 106764118 A CN106764118 A CN 106764118A
- Authority
- CN
- China
- Prior art keywords
- layer
- steel pipe
- pipe
- plain conductor
- heat preserving
- 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.)
- Pending
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
-
- 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
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention belongs to technical field of pipeline transport, and in particular to a kind of multi-layer anticorrosion insulation intelligent steel pipe road.The etching problem of pipeline is the key factor for influenceing pipe-line system reliability and service life.Regarding to the issue above, the present invention provides a kind of intelligent heat preserving pipe with multilayer proofing function.The intelligent heat preserving pipe that the present invention is provided overcomes the shortcoming that insulating tube anti-corrosion function is poor, anti-corrosion pipe cannot be detected to seeping water so that is greatly prolonged using product service life of the invention, reduces use cost, enhances detectability and remote monitoring function.The present invention employed between PE layer and foaming etc. hot melt adhesive layer carry out it is be bonded so that the bonding force of PE and foam is more preferable, effectively overcomes PE, the shortcoming of foam two-layer skin.Plain conductor is imbedded in water pipe precaution layer, there can be infiltration phenomenon to judge between right and wrong by the conductive finger target change of detection plain conductor so as to the detection more Intelligent portable of steel conduit.
Description
Technical field
The invention belongs to technical field of pipeline transport, and in particular to a kind of multi-layer anticorrosion insulation intelligent steel pipe road.
Background technology
Pipeline transportation is used as the conveying side that the fluid media (medium)s such as a large amount of transfer oils, water, gas are as safety economy
Formula, has there is more than 100 years history in the world.But the etching problem of pipeline is influence pipe-line system reliability
The key factor of property and service life, the corrosion-proof technology for pipeline of China have developed rapidly, but compared with developed countries,
Also there is very big gap.With the adjustment of the energy policy of China, the construction of long-distance transport pipes forms height in China
Tide, new requirement is proposed to pipeline corrosion protection insulation.
Three layers of PE (three-layer polyethylene) are exactly to be succeeded in developing and begun to use by Europe in the eighties in 20th century.
It is by the good Corrosion Protection of clinkery epoxy powder (FBE), cohesiveness, antikathode fissility high and gathers
The anticorrosion that the performances such as the high permeability resistant of olefin material, good mechanical performance and anti-soil stress combine
Structure, its application is in continuous ascendant trend.The following drawback that be presently, there are in traditional anti-corrosive and thermal insulation pipe：By
In traditional processing technology use sealing space foam to be formed steel pipe and PE protection clipping layer between insulation
Layer, pressure during its frostproof froth n is very big, so very thick PE jacket protective layers, PE materials must be used
Waste serious；The anti-corrosive and thermal insulation pipe that traditional handicraft makes, foam heat-insulation layer is not be bonded with PE jacket protective layers；
Manufacture craft is discontinuous, and polyurethane foam expansion density is too big, and waste of materials again reduces heat insulation effect；It is poly-
Urethane foaming is its Density inhomogeneity of the heat-insulation layer to be formed.The present invention exactly carries out a series of on steel-tube construction
Innovation, increases the bonding strong degree of foaming layer and steel pipe, in copolymer glue-line using copolymer adhesive tape is increased
Put hydrophilic substance strengthens monitoring function to steel pipe on the basis of effective corrosion-resistant thermal insulation, meets the need of remote monitoring
Ask.
The content of the invention
Regarding to the issue above, the present invention provides a kind of intelligent heat preserving pipe with multilayer proofing function.The present invention
The intelligent heat preserving pipe of offer overcomes the shortcoming that insulating tube anti-corrosion function is poor, anti-corrosion pipe cannot be detected to infiltration,
So that being greatly prolonged using product service life of the invention, use cost is reduced, enhance detectability
And remote monitoring function.Because the present invention employs hot melt adhesive layer between PE and foam so that PE and bubble
The bonding force of foam more preferably, effectively overcomes PE, the shortcoming of foam two-layer skin, due between foam and steel pipe
Epoxy powder powder is used, has effectively completely cut off steel pipe and air, improve the corrosion resistance of steel conduit.
To achieve the above object, the present invention uses following technical scheme：
A kind of intelligent heat preserving pipe of the present invention, including steel pipe (1), foaming layer (3), PE layers (5),
Also include one layer of hot melt adhesive layer (4), foaming layer (3) is formed in described steel pipe (1) outer layer spray coating foaming material
It is used to the insulation to steel pipe (1), described hot melt adhesive layer (4) is wrapped in the foaming layer (3) of steel pipe (1)
Outside, PE layers (5) are wrapped in the outer layer of the hot melt adhesive layer (4) of steel pipe (1), i.e., be followed successively by from inside to outside
Steel pipe (1), foaming layer (3), hot melt adhesive layer (4), PE layers (5)；PE layers (5) and foaming layer (3)
The hot melt adhesive layer (4) of interlayer serves bonding effect and waterproof action, while reducing foaming layer (3) and PE
Layer (5) causes the inconsistent additional internal stress for causing of expanding with heat and contract with cold because thermal coefficient of expansion is different.
Further, a kind of intelligent heat preserving pipe of the present invention, steel pipe (1) and foaming layer (3) it
Between also have FBE (2), FBE (2) is sprayed at steel pipe (1) outer surface and is used to carry
The corrosion resistance of steel pipe (1) high.
Further, a kind of intelligent heat preserving pipe of the present invention, also including plain conductor (7), metal
Wire (7) is positioned at any layer of foaming layer (3), hot melt adhesive layer (4), PE with (5).
Further, a kind of intelligent heat preserving pipe of the present invention, also including water expandable waterstop (6),
Water expandable waterstop (6) is wrapped between foaming layer (3) and hot melt adhesive layer (4), due to water-swellable
Sealing rod (6) can effectively prevent permeable layer from penetrating further into steel pipe with water sorption.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor (7) is in along steel pipe axis
Spiral wound steel pipe or is distributed in hot melt adhesive layer (4) parallel to axis, plain conductor (7) wire
Two ends are provided with circuit checker (8), when there is infiltration phenomenon, due to change in resistance so that electricity
Curtage detected by road detection means (8) produces respective change, can be made whether occur accordingly
Steel pipe seeps water.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor (7) is in along steel pipe axis
Spiral wound steel pipe or is distributed in hot melt adhesive layer (4) parallel to axis, plain conductor (7) wire
Two ends are provided with circuit checker (8), and plain conductor (7) is parallel discontiguous two wires, if
There is infiltration phenomenon, because the water for playing conductor then can respectively be connected in by two wires together with loop is formed
Circuit checker (8) on different metal wire can detect electric current and voltage, and can be determined that accordingly is
It is no to have water leakage.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor (7) is in along steel pipe axis
Spiral wound steel pipe or is distributed in foaming layer (3) or PE layers (5) parallel to axis.
A kind of intelligent heat preserving tube leakage infiltration detection method, comprises the following steps：
1) current and voltage data of plain conductor (7) two ends circuit checker (8) is recorded；
2) writing circuit detection means (8) data variation；
3) meeting the whole resistivity of water and change according to plain conductor (7) causes circuit checker (8) to be examined
The potential circuit change of survey judges leak infiltration situation；
4) specific which root steel pipe has water leakage in judging pipeline according to circuit checker (8) numbering.
The present invention compared with prior art, has the advantages that：The intelligent heat preserving pipe provided using the present invention
Overcome the shortcoming that steel pipe insulating tube anti-corrosion function is poor, anti-corrosion pipe can not be incubated so that product service life is big
Big extension, reduces use cost.
The present invention compared with prior art, also has the advantages that：Due to present invention employs hot melt adhesive layer,
So that PE is more preferable with the bonding force of foam, PE, the shortcoming of foam two-layer skin are effectively overcome, due to bubble
Epoxy powder powder is used between foam and steel pipe, has effectively completely cut off steel pipe and air, improve steel conduit
Corrosion resistance.Compared with current insulating tube, the later stage use and maintenance of production cost and pipeline is reduced
Cost, and substantially increase the life-span of product.
The present invention also has the advantages that：The deficiency of prior art is overcome, and is shown of the invention excellent
More property, is in particular in the following aspects：Due to having imbedded plain conductor in water pipe precaution layer, can
There is infiltration phenomenon to judge between right and wrong with the conductive finger target change by detection plain conductor so as to steel
The detection of pipeline more Intelligent portable.
Brief description of the drawings
Fig. 1 is a kind of vertical section structure schematic diagram of intelligent heat preserving pipe embodiment 1 of the present invention；
Fig. 2 is a kind of cross section structure schematic diagram of intelligent heat preserving pipe embodiment 1 of the present invention；
Fig. 3 is a kind of vertical section structure schematic diagram of intelligent heat preserving pipe embodiment 2 of the present invention；
Fig. 4 is a kind of cross section structure schematic diagram of intelligent heat preserving pipe embodiment 2 of the present invention；
In figure：
1st, steel pipe；2nd, FBE；3rd, foaming layer；4th, hot melt adhesive layer；5th, PE layers；6th, water is met
Expansion sealing strip；7th, plain conductor；8th, circuit checker.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the invention is described in further detail.Below
Embodiment is used to illustrate invention, but is not limited to the scope of the present invention.
Embodiment 1
As shown in Figure 1-2, a kind of intelligent heat preserving pipe of the present invention, including steel pipe 1, foaming layer 3,
PE layers 5, also including one layer of hot melt adhesive layer 4, foaming layer is formed in the described outer layer spray coating foaming material of steel pipe 1
3 are used to the insulation to steel pipe 1, and described hot melt adhesive layer 4 is wrapped in the outside of foaming layer 3 of steel pipe 1, PE
Layer 5 be wrapped in steel pipe 1 hot melt adhesive layer 4 outer layer, i.e., be followed successively by from inside to outside steel pipe 1, foaming layer 3,
Hot melt adhesive layer 4, PE layer 5；The hot melt adhesive layer 4 of PE layers 5 and the interlayer of foaming layer 3 serve bonding effect and
Waterproof action, while reduce foaming layer 3 and causing and expanding with heat and contract with cold not because thermal coefficient of expansion is different with PE layers 5
The consistent additional internal stress for causing.
Further, a kind of intelligent heat preserving pipe of the present invention, also has between steel pipe 1 and foaming layer 3
FBE 2, FBE 2 is sprayed at the outer surface of steel pipe 1 and is used to improve the anticorrosive of steel pipe 1
Performance.
Further, a kind of intelligent heat preserving pipe of the present invention, also including plain conductor 7, plain conductor
7 are located at foaming layer 3, hot melt adhesive layer 4, PE with 5 any layer.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor 7 is in spiral shell along steel pipe axis
Rotation shape is wrapped steel pipe or is distributed in hot melt adhesive layer 4 parallel to axis, and the wire two ends of plain conductor 7 are set
There is circuit checker 8, when there is infiltration phenomenon, due to change in resistance so that circuit checker 8
Detected curtage produces respective change, can be made whether steel pipe infiltration accordingly.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor 7 is in spiral shell along steel pipe axis
Rotation shape is wrapped steel pipe or is distributed in hot melt adhesive layer 4 parallel to axis, and the wire two ends of plain conductor 7 are set
There is circuit checker 8, plain conductor 7 is parallel discontiguous two wires, if there is infiltration phenomenon,
Because the water for playing conductor then can be respectively connected on different metal wire by two wires together with loop is formed
Circuit checker 8 can detect electric current and voltage, can be made whether to have water leakage accordingly.
Further, a kind of intelligent heat preserving pipe of the present invention, plain conductor 7 is in spiral shell along steel pipe axis
Rotation shape is wrapped steel pipe or is distributed in foaming layer 3 or PE layers 5 parallel to axis.
A kind of intelligent heat preserving tube leakage infiltration detection method, comprises the following steps：
1) current and voltage data of the two ends circuit checker 8 of plain conductor 7 is recorded；
2) data variation of writing circuit detection means 8；
3) meet the whole resistivity of water and change according to plain conductor 7 and cause the electricity of the detection of circuit checker 8
Volt circuit change judges leak infiltration situation；
4) specific which root steel pipe has water leakage in judging pipeline according to the numbering of circuit checker 8.
Embodiment 2
As shown in Figure 3-4, embodiment 2 and the difference part of embodiment 1 are one kind intelligence of the present invention
Insulating tube, also including water expandable waterstop 6, water expandable waterstop 6 is wrapped in foaming layer 3 and PUR
Between layer 4, because water expandable waterstop 6 has water sorption, therefore can effectively prevent permeable layer from entering
One step is penetrated into steel pipe.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of the technology of the present invention principle is not departed from, some improvement and modification can also be made,
These are improved and modification also should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of intelligent heat preserving pipe, including steel pipe (1), foaming layer (3), PE layers (5), it is characterised in that：
Also include one layer of hot melt adhesive layer (4), foaming layer (3) is formed in described steel pipe (1) outer layer spray coating foaming material
It is used to the insulation to steel pipe (1), described hot melt adhesive layer (4) is wrapped in the foaming layer (3) of steel pipe (1)
Outside, PE layers (5) are wrapped in the outer layer of the hot melt adhesive layer (4) of steel pipe (1), i.e., be followed successively by from inside to outside
Steel pipe (1), foaming layer (3), hot melt adhesive layer (4), PE layers (5)；PE layers (5) and foaming layer (3)
The hot melt adhesive layer (4) of interlayer serves bonding effect and waterproof action, while reducing foaming layer (3) and PE
Layer (5) causes the inconsistent additional internal stress for causing of expanding with heat and contract with cold because thermal coefficient of expansion is different.
2. a kind of intelligent heat preserving pipe according to claim 1, it is characterised in that steel pipe (1) and foaming
There is FBE (2) between layer (3), FBE (2) is sprayed at steel pipe (1) appearance
Face is used to improve the corrosion resistance of steel pipe (1).
3. a kind of intelligent heat preserving pipe according to claim 1, it is characterised in that also including plain conductor
(7), plain conductor (7) is positioned at any layer of foaming layer (3), hot melt adhesive layer (4), PE with (5).
4. a kind of intelligent heat preserving pipe according to claim 1, it is characterised in that also stop including water-swellable
Water bar (6), water expandable waterstop (6) is wrapped between foaming layer (3) and hot melt adhesive layer (4), by
In water expandable waterstop (6) with water sorption, therefore can effectively prevent permeable layer from penetrating further into steel
Guan Li.
5. a kind of intelligent heat preserving pipe according to claim 1, it is characterised in that plain conductor (7) edge
Steel pipe axis are wrapped steel pipe or are distributed in hot melt adhesive layer (4) parallel to axis, plain conductor in the shape of a spiral
(7) wire two ends are provided with circuit checker (8), when there is infiltration phenomenon, due to change in resistance,
So that the curtage detected by circuit checker (8) produces respective change, can be determined that accordingly is
No generation steel pipe infiltration.
6. a kind of intelligent heat preserving pipe according to claim 1, it is characterised in that plain conductor (7) edge
Steel pipe axis are wrapped steel pipe or are distributed in hot melt adhesive layer (4) parallel to axis, plain conductor in the shape of a spiral
(7) wire two ends are provided with circuit checker (8), and plain conductor (7) is parallel discontiguous two
Wire, if there is infiltration phenomenon, due to serve conductor water can by two wires together with formation loop,
The circuit checker (8) being then connected in respectively on different metal wire can detect electric current and voltage, accordingly
Can be made whether to have water leakage.
7. a kind of intelligent heat preserving pipe according to claim 5 or 6, it is characterised in that plain conductor (7)
It is wrapped steel pipe in the shape of a spiral along steel pipe axis or is distributed in foaming layer (3) or PE layers (5) parallel to axis.
8. a kind of intelligent heat preserving tube leakage infiltration detection method, it is characterised in that comprise the following steps：
1) current and voltage data of plain conductor (7) two ends circuit checker (8) is recorded；
2) writing circuit detection means (8) data variation；
3) meeting the whole resistivity of water and change according to plain conductor (7) causes circuit checker (8) to be examined
The potential circuit change of survey judges leak infiltration situation；
4) specific which root steel pipe has water leakage in judging pipeline according to circuit checker (8) numbering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835907.4A CN106764118A (en) | 2015-11-23 | 2015-11-23 | A kind of intelligent heat preserving pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835907.4A CN106764118A (en) | 2015-11-23 | 2015-11-23 | A kind of intelligent heat preserving pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764118A true CN106764118A (en) | 2017-05-31 |
Family
ID=58965495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510835907.4A Pending CN106764118A (en) | 2015-11-23 | 2015-11-23 | A kind of intelligent heat preserving pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764118A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404629A (en) * | 2018-12-24 | 2019-03-01 | 哈尔滨朗格斯特节能科技有限公司 | It is capable of the prefabricated direct-buried plastic, thermal-insulation pipe and manufacturing method of flexible coil pipe |
| CN113819314A (en) * | 2021-10-19 | 2021-12-21 | 新疆强州玻璃钢管业有限公司 | Glass fiber reinforced plastic chopped fiber mixed quartz sand inclusion pipeline system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2027158A (en) * | 1978-07-07 | 1980-02-13 | Clarkson J N | Protected and insulated pipeline |
| CN88210103U (en) * | 1988-01-29 | 1988-09-07 | 杨正程 | Leakage detector for composite insulation pipeline |
| CN2911362Y (en) * | 2006-01-27 | 2007-06-13 | 中国海洋石油总公司 | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation |
| CN202101825U (en) * | 2011-06-13 | 2012-01-04 | 深圳市祥为测控技术有限公司 | Water leakage detection line with twin-twisted structure |
| CN102434757A (en) * | 2011-12-09 | 2012-05-02 | 中国海洋石油总公司 | Sealed and waterproof seabed heat-preservation pipe |
| CN203477643U (en) * | 2013-05-21 | 2014-03-12 | 天津市宇刚保温建材有限公司 | Directly-buried steam insulating pipe |
| CN104295845A (en) * | 2014-09-26 | 2015-01-21 | 哈尔滨朗格斯特节能科技有限公司 | Crosslinked polyethylene work pipe fitting elbow for directly-buried heat preservation pipe intelligently prefabricated and manufacturing method |
| CN204187141U (en) * | 2014-09-26 | 2015-03-04 | 中建七局第二建筑有限公司 | A kind of through-flooring tube circumference leakage preventing structure |
| CN205190989U (en) * | 2015-11-23 | 2016-04-27 | 青岛大仓防腐有限公司 | Intelligence insulating tube |
-
2015
- 2015-11-23 CN CN201510835907.4A patent/CN106764118A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2027158A (en) * | 1978-07-07 | 1980-02-13 | Clarkson J N | Protected and insulated pipeline |
| CN88210103U (en) * | 1988-01-29 | 1988-09-07 | 杨正程 | Leakage detector for composite insulation pipeline |
| CN2911362Y (en) * | 2006-01-27 | 2007-06-13 | 中国海洋石油总公司 | Single layer thermal insulation pipeline structure for offshore transportation of petroleum, natural gas, water and/or oil-gas mixed transportation |
| CN202101825U (en) * | 2011-06-13 | 2012-01-04 | 深圳市祥为测控技术有限公司 | Water leakage detection line with twin-twisted structure |
| CN102434757A (en) * | 2011-12-09 | 2012-05-02 | 中国海洋石油总公司 | Sealed and waterproof seabed heat-preservation pipe |
| CN203477643U (en) * | 2013-05-21 | 2014-03-12 | 天津市宇刚保温建材有限公司 | Directly-buried steam insulating pipe |
| CN104295845A (en) * | 2014-09-26 | 2015-01-21 | 哈尔滨朗格斯特节能科技有限公司 | Crosslinked polyethylene work pipe fitting elbow for directly-buried heat preservation pipe intelligently prefabricated and manufacturing method |
| CN204187141U (en) * | 2014-09-26 | 2015-03-04 | 中建七局第二建筑有限公司 | A kind of through-flooring tube circumference leakage preventing structure |
| CN205190989U (en) * | 2015-11-23 | 2016-04-27 | 青岛大仓防腐有限公司 | Intelligence insulating tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404629A (en) * | 2018-12-24 | 2019-03-01 | 哈尔滨朗格斯特节能科技有限公司 | It is capable of the prefabricated direct-buried plastic, thermal-insulation pipe and manufacturing method of flexible coil pipe |
| CN113819314A (en) * | 2021-10-19 | 2021-12-21 | 新疆强州玻璃钢管业有限公司 | Glass fiber reinforced plastic chopped fiber mixed quartz sand inclusion pipeline system |
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Application publication date: 20170531 |