CN106764256A - A kind of heavy caliber high compressive strength insulating tube and its manufacture craft - Google Patents
A kind of heavy caliber high compressive strength insulating tube and its manufacture craft Download PDFInfo
- Publication number
- CN106764256A CN106764256A CN201710091776.2A CN201710091776A CN106764256A CN 106764256 A CN106764256 A CN 106764256A CN 201710091776 A CN201710091776 A CN 201710091776A CN 106764256 A CN106764256 A CN 106764256A
- Authority
- CN
- China
- Prior art keywords
- steel band
- instrumentation tubes
- protection tube
- outer protection
- insulation layer
- 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.)
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Classifications
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- 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
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/15—Arrangements for the insulation of pipes or pipe systems for underground pipes
Abstract
A kind of heavy caliber high compressive strength high-temperature-resistant thermal-insulation pipe and its manufacture craft, including instrumentation tubes, supporting network, aeroge heat-insulation layer, glass fibre aluminium foil cloth, locating support, polyurethane insulation coating, steel band reinforced polyethylene spiral ripple outer protection tube, alarming line, supporting network is wrapped in instrumentation tubes, and supporting network is orderly arranged outside each aeroge heat-insulation layer and glass fibre aluminium foil cloth；Glass fibre aluminium foil cloth outside is fixed with several locating supports by strap, and alarming line is worn be connected on locating support vertically；Glass fibre aluminium foil cloth outside sets gradually polyurethane insulation coating and steel band reinforced polyethylene spiral ripple outer protection tube again.The present invention can resist the pressure from buried soil, and protective conduit heat-insulation layer is not compressed destruction.Solve the problems, such as heavy caliber hot water heat insulating pipe outer protection tube compressive deformation.Insulating tube pumped (conveying) medium temperature is improved, can long-term use at high temperature.Instrumentation tubes expanded by heating is avoided to produce thermal stretching to cause heat-insulation layer to be torn and wear and tear.
Description
Technical field
It is big the present invention relates to the pipeline making under heavy caliber direct-buried thermal insulation pipe and high-temperature water ruuning situation, more particularly to one kind
Bore high compressive strength insulating tube and its manufacture craft.
Background technology
At present, prefabricated direct-buried thermal insulation pipe structure is instrumentation tubes-polyurethane insulation coating-polyethylene outer protective pipe structure (from the inside to the outside)
Into.Pipeline longtime running highest heatproof 120.There are the following problems for such structure and heatproof index request：Firstth, for defeated
Requirement cannot be met in the case of sending high-temperature-hot-water, polyurethane carbonization destruction occurs, loses insulation effect at high temperature.Secondth,
For heavy caliber insulating tube because the ground pressure of pipeline gross weight and directly buried pipeline buried depth makes the pressure that outer protection tube is born increase
By force, cause outer protection tube to deform even to destroy, so as to cause to be incubated damage layer, lose insulation effect and the anti-corrosion work(to instrumentation tubes
Energy.
The content of the invention
It is an object of the invention to provide a kind of heavy caliber high compressive strength insulating tube and its manufacture craft, can be used in great Kou
Insulation construction on the prefabricated direct-buried thermal insulation pipe road of footpath, is equally applicable to the high-temperature-hot-water direct-buried thermal insulation pipe of high temperature resistant requirement.
To achieve the above object, the present invention is realized using following technical scheme：
A kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes, supporting network, aeroge heat-insulation layer, glass fibre aluminium
Paper tinsel cloth, locating support, polyurethane insulation coating, steel band reinforced polyethylene spiral ripple outer protection tube, alarming line, supporting network are wrapped in work
Make the outside of pipe, aeroge heat-insulation layer and glass fibre aluminium foil cloth are orderly arranged outside each in supporting network；In glass fibre aluminium foil
The outside of cloth is fixed with several locating supports by strap, and several alarming lines are worn be connected on locating support vertically；
The outer sheath dress steel band reinforced polyethylene spiral ripple outer protection tube of glass fibre aluminium foil cloth, in steel band reinforced polyethylene spiral ripple
Filled polyurethane heat-insulation layer in outer protection tube.
The locating support is hollow unit of plastic, alarm line jack hole is provided with the both sides of hollow unit of plastic, hollow
The bottom of unit of plastic is provided with supporting leg, and strap jack hole is provided with supporting leg.
The locating support along pipeline axially it is every 1 meter set one group, every group along pipeline it is circumferentially disposed several.
A kind of manufacture craft of heavy caliber high compressive strength insulating tube, it is specific as follows：
1) instrumentation tubes rust cleaning, applies high-temperature-resantirust antirust paint, and two ends respectively retain 200mm length；
2) steel mesh is rolled into corresponding cylinder, is sleeved in instrumentation tubes as supporting network；
3) aeroge is coated on the outer surface of supporting network, is tied up firmly with steel band, constitute aeroge heat-insulation layer；
4) it is wrapped in the outer surface of aeroge heat-insulation layer with glass fibre aluminium foil cloth and is tied up firmly by strap；So far
Complete the ground floor insulation operation of instrumentation tubes；
5) several locating supports are arranged on a strap by the strap jack hole on supporting leg, this is packed
Band is circumferentially banded in the outer surface of glass fibre aluminium foil cloth；
6) alarming line is worn on the alarm line jack hole for being connected on locating support vertically；
7) the steel band reinforced polyethylene spiral ripple outer protection tube of correspondence length is taken, the instrumentation tubes that will complete ground floor insulation are worn
In entering outer protection tube, instrumentation tubes two ends are exposed the free end of 200mm length；
8) sealing flange is installed in pipe ends；
9) to polyurethane material feeding foamed heat insulating is carried out in steel band reinforced polyethylene spiral ripple outer protection tube, urethane cures are treated
After dismantle sealing flange, cleaning completes production.
A kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes, supporting network, aeroge heat-insulation layer, glass fibre aluminium
Paper tinsel cloth, locating support, polyurethane insulation coating, steel band reinforced polyethylene spiral ripple outer protection tube, supporting network are wrapped in instrumentation tubes
Outside, aeroge heat-insulation layer and glass fibre aluminium foil cloth are orderly arranged outside each in supporting network；In the outer of glass fibre aluminium foil cloth
Side is fixed with several locating supports by strap；Steel band enhanced polyethylene helical is filled in the outer sheath of glass fibre aluminium foil cloth
Ripple outer protection tube, the filled polyurethane heat-insulation layer in steel band reinforced polyethylene spiral ripple outer protection tube.
A kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes, locating support, polyurethane insulation coating, steel strip reinforced
Polyethylene spiral ripple outer protection tube, several locating supports are fixed with instrumentation tubes by strap；In the outside of instrumentation tubes
Suit steel band reinforced polyethylene spiral ripple outer protection tube, filled polyurethane is protected in steel band reinforced polyethylene spiral ripple outer protection tube
Warm layer.
A kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes, locating support, alarming line, polyurethane insulation coating, steel
Band enhancing polyethylene spiral ripple outer protection tube, several locating supports are fixed with instrumentation tubes by strap, several reports
Alert line is worn be connected on locating support vertically；Steel band reinforced polyethylene spiral ripple outer protection tube is filled in the outer sheath of instrumentation tubes,
Filled polyurethane heat-insulation layer in steel band reinforced polyethylene spiral ripple outer protection tube.
Compared with prior art, the beneficial effects of the invention are as follows：
1) outer protection tube is done using steel band reinforced polyethylene spiral ripple pipe, improves the compression strength and rigidity of outer protection tube, had
Effect pressure of the resistance from buried soil, protective conduit heat-insulation layer is not compressed destruction.
2) outer protection tube is done using steel band reinforced polyethylene spiral ripple pipe, can effectively solve bigbore hot water heat insulating pipe by
In the excessive destruction for causing outer protection tube compressive deformation to cause of self weight of pipeline.
3) work inner tube layer insulation does insulation material using high temperature resistant aeroge, effectively improves the pumped (conveying) medium temperature of insulating tube
Degree, reaches the permanently effective purpose using operation at high temperature.
4) instrumentation tubes overcoat support web frame, can effectively protect heat-insulation layer, it is to avoid instrumentation tubes expanded by heating produces thermal stretching
Heat-insulation layer is caused to be torn and wear and tear.
Brief description of the drawings
Fig. 1 is a kind of structural representation (embodiment 1) of heavy caliber high compressive strength high-temperature-resistant thermal-insulation pipe of the invention.
Fig. 2 is a kind of structural representation (embodiment 2) of heavy caliber high compressive strength high-temperature-resistant thermal-insulation pipe of the invention.
Fig. 3 is a kind of structural representation (embodiment 3) of heavy caliber high compressive strength high-temperature-resistant thermal-insulation pipe of the invention.
Fig. 4 is a kind of structural representation (embodiment 4) of heavy caliber high compressive strength high-temperature-resistant thermal-insulation pipe of the invention.
Fig. 5 is the structural representation of locating support.
In figure：1- instrumentation tubes, 2- alarming lines, 3- supporting networks, 4- aeroges heat-insulation layer, 5- glass fibres aluminium foil cloth, 6- beat
Band I, 7- straps II, 8- locating supports, 9- polyurethane insulation coatings, 10- steel band reinforced polyethylene spiral ripples outer protection tube,
11- straps jack hole, 12- alarm line jack holes.
Specific embodiment
Embodiments of the present invention are further illustrated below in conjunction with the accompanying drawings：
Embodiment 1：
See Fig. 1, a kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes 1, supporting network 3, aeroge heat-insulation layer 4, glass
Glass fiber aluminium foil cloth 5, locating support 8, polyurethane insulation coating 9, steel band reinforced polyethylene spiral ripple outer protection tube 10, alarming line 2,
Supporting network 3 is wrapped in the outside of instrumentation tubes 1, and aeroge heat-insulation layer 4 and glass fibre aluminium foil are orderly arranged outside each in supporting network 3
Cloth 5；Several locating supports 8 are fixed with by strap II 7 in the outside of glass fibre aluminium foil cloth 5, several edges of alarming line 2
Axially wear and be connected on locating support 8；Steel band reinforced polyethylene spiral ripple outer protection tube is filled in the outer sheath of glass fibre aluminium foil cloth 5
10, the filled polyurethane heat-insulation layer 9 in steel band reinforced polyethylene spiral ripple outer protection tube 10.
See Fig. 5, the locating support 8 is hollow unit of plastic, and alarm line jack hole is provided with the both sides of hollow unit of plastic
12, supporting leg is provided with the bottom of hollow unit of plastic, strap jack hole 11 is provided with supporting leg.
The locating support 8 along pipeline axially it is every 1 meter set one group, every group along pipeline it is circumferentially disposed several.
A kind of manufacture craft of heavy caliber high compressive strength insulating tube, it is specific as follows：
1) instrumentation tubes 1 eliminate rust, and apply high-temperature-resantirust antirust paint, and two ends respectively retain 200mm length.
2) steel mesh is rolled into corresponding cylinder, is sleeved in instrumentation tubes 1 as supporting network 3.
For on-fixed is connected between supporting network 3 and instrumentation tubes 1, relative can slide, when the expanded by heating of instrumentation tubes 1 produces heat
During elongation, it is ensured that the heat-insulation layer being fixed on supporting network 3 will not be torn and wear and tear.
3) aeroge is coated on the outer surface of supporting network 3, is tied up firmly with steel band, constitute aeroge heat-insulation layer 4.
4) it is wrapped in the outer surface of aeroge heat-insulation layer 4 with glass fibre aluminium foil cloth 5 and is tied up firmly by strap I 6；
So far the ground floor insulation operation of instrumentation tubes 1 is completed.
5) several locating supports 8 are arranged on a strap II 7 by the strap jack hole 11 on supporting leg, will
The strap II 7 is circumferentially banded in the outer surface of glass fibre aluminium foil cloth 5；
A band II 7 is wound every one meter, the locating support 8 on band II 7 is linked to be straight line in the axial direction, and what is be linked to be is straight
Line is parallel with conduit axis.
6) alarming line 2 is worn on the alarm line jack hole 12 for being connected on locating support 8 vertically.
7) the steel band reinforced polyethylene spiral ripple outer protection tube 10 of correspondence length is taken, the instrumentation tubes of ground floor insulation will be completed
In penetrating outer protection tube, the two ends of instrumentation tubes 1 are exposed the free end of 200mm length.
8) sealing flange is installed in pipe ends.
9) to polyurethane material feeding foamed heat insulating is carried out in steel band reinforced polyethylene spiral ripple outer protection tube 10, treat that polyurethane is consolidated
Sealing flange is dismantled after change, cleaning completes production.The density of polyurethane insulation coating 9 is not less than 60kg/m3。
Embodiment 2：
See Fig. 2, a kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes 1, supporting network 3, aeroge heat-insulation layer 4, glass
Glass fiber aluminium foil cloth 5, locating support 8, polyurethane insulation coating 9, steel band reinforced polyethylene spiral ripple outer protection tube 10, supporting network 3
The outside of instrumentation tubes 1 is wrapped in, aeroge heat-insulation layer 4 and glass fibre aluminium foil cloth 5 are orderly arranged outside each in supporting network 3；
The outside of glass fibre aluminium foil cloth 5 is fixed with several locating supports 8 by strap II 7；In the outer of glass fibre aluminium foil cloth 5
Side is set with steel band reinforced polyethylene spiral ripple outer protection tube 10, and filling is poly- in steel band reinforced polyethylene spiral ripple outer protection tube 10
Urethane heat-insulation layer 9.
A kind of manufacture craft of heavy caliber high compressive strength insulating tube, it is specific as follows：
1) instrumentation tubes 1 eliminate rust, and apply high-temperature-resantirust antirust paint, and two ends respectively retain 200mm length.
2) steel mesh is rolled into corresponding cylinder, is socketed in instrumentation tubes 1 as supporting network 3.
For on-fixed is connected between supporting network 3 and instrumentation tubes 1, relative can slide, when the expanded by heating of instrumentation tubes 1 produces heat
During elongation, it is ensured that the heat-insulation layer being fixed on supporting network 3 will not be torn and wear and tear.
3) aeroge is coated on the outer surface of supporting network 3, is tied up firmly with steel band, constitute aeroge heat-insulation layer 4.
4) outer surface for being wrapped in aeroge heat-insulation layer 4 with glass fibre aluminium foil cloth 5 is tied up firmly by strap I 6；Extremely
This completes the ground floor insulation operation of instrumentation tubes.
5) several locating supports 8 are arranged on a strap II 7 by the strap jack hole 11 on supporting leg, will
The strap II 7 is circumferentially banded in the outer surface of glass fibre aluminium foil cloth 5；
6) the steel band reinforced polyethylene spiral ripple outer protection tube 10 of correspondence length is taken, the instrumentation tubes of ground floor insulation will be completed
In penetrating outer protection tube, the two ends of instrumentation tubes 1 are exposed the free end of 200mm length.
7) sealing flange is installed in pipe ends.
8) to polyurethane material feeding foamed heat insulating is carried out in steel band reinforced polyethylene spiral ripple outer protection tube 10, treat that polyurethane is consolidated
Sealing flange is dismantled after change, cleaning completes production.The density of polyurethane insulation coating 9 is not less than 60kg/m3
Embodiment 3：
See Fig. 3, a kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes 1, locating support 8, polyurethane insulation coating 9,
Steel band reinforced polyethylene spiral ripple outer protection tube 10, several locating supports 8 are fixed with instrumentation tubes 1 by strap II 7；
In the outer sheath dress steel band reinforced polyethylene spiral ripple outer protection tube 10 of instrumentation tubes 1, outside steel band reinforced polyethylene spiral ripple
Filled polyurethane heat-insulation layer 9 in pillar 10.
A kind of manufacture craft of heavy caliber high compressive strength insulating tube, it is specific as follows：
1) instrumentation tubes 1 eliminate rust, each reserved 200mm length in two ends.
2) several locating supports 8 are arranged on a strap II 7 by the strap jack hole 11 on supporting leg, will
The strap II 7 is circumferentially banded in the outer surface of instrumentation tubes 1；
3) the steel band reinforced polyethylene spiral ripple outer protection tube 10 of correspondence length is taken, during instrumentation tubes 1 are penetrated into outer protection tube, work
Make the exposed free end for having 200mm length in the two ends of pipe 1.
4) sealing flange is installed in pipe ends.
5) to polyurethane material feeding foamed heat insulating is carried out in steel band reinforced polyethylene spiral ripple outer protection tube 10, treat that polyurethane is consolidated
Sealing flange is dismantled after change, cleaning completes production.The density of polyurethane insulation coating 9 is not less than 60kg/m3
Embodiment 4：
See Fig. 4, a kind of heavy caliber high compressive strength insulating tube, including instrumentation tubes 1, locating support 8, alarming line 2, polyurethane
Heat-insulation layer 9, steel band reinforced polyethylene spiral ripple outer protection tube 10, in instrumentation tubes 1 by strap II 7 be fixed with several determine
Position support 8, several alarming lines 2 are worn be connected on locating support 8 vertically；The poly- second of steel strip reinforced is filled in the outer sheath of instrumentation tubes 1
Alkene helical corrugation outer protection tube 10, the filled polyurethane heat-insulation layer 9 in steel band reinforced polyethylene spiral ripple outer protection tube 10.
A kind of manufacture craft of heavy caliber high compressive strength insulating tube, it is specific as follows：
1) instrumentation tubes 1 eliminate rust, each reserved 200mm length in two ends.
2) several locating supports 8 are arranged on a strap II 7 by the strap jack hole 10 on supporting leg, will
The strap II 7 is circumferentially wrapped in the outer surface of instrumentation tubes 1；
A strap II 7 is wound every one meter, the locating support 8 on strap II 7 is linked to be straight line, is linked to be in the axial direction
Straight line is parallel with conduit axis.
3) alarming line 2 is worn on the alarm line jack hole 12 for being connected on locating support 8 vertically.
4) the steel band reinforced polyethylene spiral ripple outer protection tube 10 of correspondence length is taken, during instrumentation tubes 1 are penetrated into outer protection tube, work
Make the exposed free end for having 200mm length in the two ends of pipe 1.
5) sealing flange is installed in pipe ends.
6) to polyurethane material feeding foamed heat insulating is carried out in steel band reinforced polyethylene spiral ripple outer protection tube 10, treat that polyurethane is consolidated
Sealing flange is dismantled after change, cleaning completes production.The density of polyurethane insulation coating 9 is not less than 60kg/m3。
Claims (7)
1. a kind of heavy caliber high compressive strength insulating tube, it is characterised in that including instrumentation tubes, supporting network, aeroge heat-insulation layer, glass
Glass fiber aluminium foil cloth, locating support, polyurethane insulation coating, steel band reinforced polyethylene spiral ripple outer protection tube, alarming line, supporting network
The outside of instrumentation tubes is wrapped in, aeroge heat-insulation layer and glass fibre aluminium foil cloth are orderly arranged outside each in supporting network；In glass
The outside of fiber aluminium foil cloth is fixed with several locating supports by strap, and several alarming lines are worn be connected on positioning branch vertically
On frame；Steel band reinforced polyethylene spiral ripple outer protection tube is filled in the outer sheath of glass fibre aluminium foil cloth, in steel band enhanced polyethylene
Filled polyurethane heat-insulation layer in helical corrugation outer protection tube.
2. a kind of heavy caliber high compressive strength insulating tube according to claim 1, it is characterised in that the locating support is
Hollow unit of plastic, alarm line jack hole is provided with the both sides of hollow unit of plastic, and supporting leg is provided with the bottom of hollow unit of plastic,
Supporting leg is provided with strap jack hole.
3. a kind of heavy caliber high compressive strength insulating tube according to claim 1, it is characterised in that the locating support edge
Pipeline axially it is every 1 meter set one group, every group along pipeline it is circumferentially disposed several.
4. the manufacture craft of a kind of heavy caliber high compressive strength insulating tube as described in claim 1-3 wherein any one, its
It is characterised by, it is specific as follows：
1) instrumentation tubes rust cleaning, applies high-temperature-resantirust antirust paint, and two ends respectively retain 200mm length；
2) steel mesh is rolled into corresponding cylinder, is sleeved in instrumentation tubes as supporting network；
3) aeroge is coated on the outer surface of supporting network, is tied up firmly with steel band, constitute aeroge heat-insulation layer；
4) it is wrapped in the outer surface of aeroge heat-insulation layer with glass fibre aluminium foil cloth and is tied up firmly by strap；So far complete
The ground floor insulation operation of instrumentation tubes；
5) several locating supports are arranged on a strap by the strap jack hole on supporting leg, by the strap edge
Circumferentially it is banded in the outer surface of glass fibre aluminium foil cloth；
6) alarming line is worn on the alarm line jack hole for being connected on locating support vertically；
7) the steel band reinforced polyethylene spiral ripple outer protection tube for corresponding to length is taken, the instrumentation tubes that will complete ground floor insulation are penetrated outward
In pillar, instrumentation tubes two ends are exposed the free end of 200mm length；
8) sealing flange is installed in pipe ends；
9) to carrying out polyurethane material feeding foamed heat insulating in steel band reinforced polyethylene spiral ripple outer protection tube, after being torn open after urethane cures
Sealing flange is unloaded, cleaning completes production.
5. a kind of heavy caliber high compressive strength insulating tube, it is characterised in that including instrumentation tubes, supporting network, aeroge heat-insulation layer, glass
Glass fiber aluminium foil cloth, locating support, polyurethane insulation coating, steel band reinforced polyethylene spiral ripple outer protection tube, supporting network are wrapped in
The outside of instrumentation tubes, aeroge heat-insulation layer and glass fibre aluminium foil cloth are orderly arranged outside each in supporting network；In glass fibre aluminium
The outside of paper tinsel cloth is fixed with several locating supports by strap；Gather in the outer sheath dress steel strip reinforced of glass fibre aluminium foil cloth
Ethene helical corrugation outer protection tube, the filled polyurethane heat-insulation layer in steel band reinforced polyethylene spiral ripple outer protection tube.
6. a kind of heavy caliber high compressive strength insulating tube, it is characterised in that including instrumentation tubes, locating support, polyurethane insulation coating,
Steel band reinforced polyethylene spiral ripple outer protection tube, several locating supports are fixed with instrumentation tubes by strap；In work
The outer sheath dress steel band reinforced polyethylene spiral ripple outer protection tube of pipe, fills in steel band reinforced polyethylene spiral ripple outer protection tube
Polyurethane insulation coating.
7. a kind of heavy caliber high compressive strength insulating tube, it is characterised in that including instrumentation tubes, locating support, alarming line, polyurethane
Heat-insulation layer, steel band reinforced polyethylene spiral ripple outer protection tube, several locating supports are fixed with instrumentation tubes by strap,
Several alarming lines are worn be connected on locating support vertically；Outside the outer sheath dress steel band reinforced polyethylene spiral ripple of instrumentation tubes
Pillar, the filled polyurethane heat-insulation layer in steel band reinforced polyethylene spiral ripple outer protection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091776.2A CN106764256A (en) | 2017-02-21 | 2017-02-21 | A kind of heavy caliber high compressive strength insulating tube and its manufacture craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710091776.2A CN106764256A (en) | 2017-02-21 | 2017-02-21 | A kind of heavy caliber high compressive strength insulating tube and its manufacture craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106764256A true CN106764256A (en) | 2017-05-31 |
Family
ID=58958660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710091776.2A Pending CN106764256A (en) | 2017-02-21 | 2017-02-21 | A kind of heavy caliber high compressive strength insulating tube and its manufacture craft |
Country Status (1)
| Country | Link |
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| CN (1) | CN106764256A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386692A (en) * | 2018-12-24 | 2019-02-26 | 哈尔滨朗格斯特节能科技有限公司 | The foaming of hard polyaminoester mold is combined insulating tube and manufacturing method with polyethylene winding |
| CN111911716A (en) * | 2020-08-13 | 2020-11-10 | 江苏嘉德管道工程有限公司 | Cryogenic working condition prefabricated cold insulation pipe |
| CN114603842A (en) * | 2022-03-11 | 2022-06-10 | 山西久易通管业科技有限公司 | Method for enhancing shearing strength of outer protecting pipe and edge knurling machine for inner wall of outer protecting pipe |
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| DE3609540A1 (en) * | 1985-03-25 | 1986-10-02 | Kabelwerke Brugg AG, Brugg | Pretension-free underground long-distance heating (district heating) |
| CN103912734A (en) * | 2014-04-18 | 2014-07-09 | 辽宁久大管业有限公司 | Directly buried prefabricated heat-insulation high-temperature hot water tube and production method thereof |
| CN203857199U (en) * | 2014-04-18 | 2014-10-01 | 辽宁久大管业有限公司 | Direct-burial prefabricated composite thermal insulation steam pipe with built-in rolling type inner guide steel tube |
| CN205013964U (en) * | 2015-10-09 | 2016-02-03 | 青岛罗宝节能科技有限公司 | Spiral sheath insulating tube |
| CN105485437A (en) * | 2015-12-08 | 2016-04-13 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Thermal insulation pipeline with alarm wires and alarm method |
| CN205479988U (en) * | 2016-03-16 | 2016-08-17 | 大连益多管道有限公司 | High temperature resistant polyurethane thermal insulation pipe way |
| CN206522577U (en) * | 2017-02-21 | 2017-09-26 | 廊坊华宇天创能源设备有限公司 | A kind of heavy caliber high compressive strength insulating tube |
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| DE3609540A1 (en) * | 1985-03-25 | 1986-10-02 | Kabelwerke Brugg AG, Brugg | Pretension-free underground long-distance heating (district heating) |
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| CN206522577U (en) * | 2017-02-21 | 2017-09-26 | 廊坊华宇天创能源设备有限公司 | A kind of heavy caliber high compressive strength insulating tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386692A (en) * | 2018-12-24 | 2019-02-26 | 哈尔滨朗格斯特节能科技有限公司 | The foaming of hard polyaminoester mold is combined insulating tube and manufacturing method with polyethylene winding |
| CN111911716A (en) * | 2020-08-13 | 2020-11-10 | 江苏嘉德管道工程有限公司 | Cryogenic working condition prefabricated cold insulation pipe |
| CN114603842A (en) * | 2022-03-11 | 2022-06-10 | 山西久易通管业科技有限公司 | Method for enhancing shearing strength of outer protecting pipe and edge knurling machine for inner wall of outer protecting pipe |
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Application publication date: 20170531 |
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