CN204493921U - Trenchless engineering special anti-corrosion thermal insulation pipe - Google Patents
Trenchless engineering special anti-corrosion thermal insulation pipe Download PDFInfo
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- CN204493921U CN204493921U CN201520168659.8U CN201520168659U CN204493921U CN 204493921 U CN204493921 U CN 204493921U CN 201520168659 U CN201520168659 U CN 201520168659U CN 204493921 U CN204493921 U CN 204493921U
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Abstract
The utility model discloses a kind of trenchless engineering special anti-corrosion thermal insulation pipe.This anti-corrosion heat insulation pipe comprises steel pipe (5); described steel pipe (5) inside and outside wall is respectively equipped with anticorrosive coat in nanometer (6) and nanometer external anti-corrosion layer (4), and nanometer external anti-corrosion layer (4) outer surface is provided with high flame retardant successively and receives base thermal insulating soft layer (3), software watertightness barrier (2) and PE protective layer (1).This trenchless engineering special anti-corrosion thermal insulation pipe has high anticorrosion, high flame retardant, the feature in high-efficiency insulated, long-acting working life.
Description
Technical field:
The utility model relates to a kind of underground corrosion-resistant thermal insulation pipeline, especially relates to a kind of trenchless engineering special anti-corrosion thermal insulation pipe.
Background technique:
Along with social progress, economic development, the consumption of underground utility also will increase thereupon.Because in certain sense, the owning amount of underground utility reflects the environmental quality of the level of economic development in a country or city and people's life, work per capita.But traditional underground pipeline construction method, welding, blocking-up traffic, have impact on expanding economy, and bring inconvenience to the life of people, work, this is non-excavation laying underground utility technology.Non-excavating technology of underground pipeline refers to the laying when groove is not excavated on ground, repairs and change the construction technology of under ground piping and cable.Wherein, laying underground utility mainly utilizes horizontal hole creating technology or Horizontal Directional Drilling to implement.Not welding, do not block traffic, do not disturb residents, have higher civilization degree, speed of application is fast.
The thermal insulating material that yellow jacket polyurethane heat-insulation steel pipe is conventional is rigid polyurethane foam plastics, and Applicable temperature is-185 ~ 120 DEG C.This texture material is soft, for improving its intensity, adds deposited one deck high-density polyethylene layer outside thermal-protective coating, forms composite structure, to prevent in Groundwater infiltration thermal insulation layer.Yellow jacket insulation pipe structure mainly comprises working steel tube layer, polyurethane insulation coating and high density polyethylene protective coating.Wherein outmost one deck is covered by the black or yellow polyvinyl plastics material being prefabricated into certain wall thickness.Black be referred to as black jacket thermal insulation pipe, yellow is referred to as yellow jacket thermal insulation pipe.Its effect one is that protection polyurethane insulation coating exempts from mechanical hard object destruction, and two is anticorrosion, waterproof.High density polyvinyl polyurethane foamed heat insulating steel pipe performs: SY/T114-2000 and SY/T115-2001 standard.
Along with the increase of construction amount; the problem that in engineering, existence one is crucial; the pipeline laid exactly is due in construction; under the complicated situation of underground, itself and pipeline rub or the destruction of construction tool mutually, and the protective layer of the hot insulated line passed through can be damaged, loses protective layer sometimes; when external humidification and rainwater and underground water enchroachment (invasion) bubble; hot insulated line just loses heat insulation effect, mainly due to repaired mouth water inlet, separates out acid medium and corrosion pipeline after causing foam to absorb water.Affect the normal operation of pipeline, do not reach design service life, increase operating expenses and difficulty.
Model utility content:
In order to solve the technical problem that background technique exists, the utility model provides a kind of trenchless engineering special anti-corrosion thermal insulation pipe, and this trenchless engineering special anti-corrosion thermal insulation pipe has high anticorrosion, high flame retardant, the feature in high-efficiency insulated, long-acting working life.
The technical solution of the utility model is: this trenchless engineering special anti-corrosion thermal insulation pipe comprises steel pipe; described steel pipe inside and outside wall is respectively equipped with anticorrosive coat and nanometer external anti-corrosion layer in nanometer, and nanometer external anti-corrosion layer outer surface is provided with high flame retardant successively and receives base thermal insulating soft layer, software watertightness barrier and PE protective layer.
Anti-corrosion heat insulation pipe outer wall in such scheme has a bracing ring at interval of 2 meters of covers.
The utility model has following beneficial effect: owing to taking such scheme, this trenchless engineering special anti-corrosion thermal insulation pipe has following effect: 1, long-effective corrosion: the inside and outside wall of pipe is all by nanometer material process, acid, alkali, salt and water invade bubble under all can not corrode, thermal insulating material and tube wall close attachment, also have preservative efficacy; 2, highly effective flame-retardant: thermal insulating material is inorganic matter allotment, has the feature of fire protection flame retarding; 3, caliber is little: the characteristic of thermal insulation layer and waterproof layer material, and the diameter determining corrosion-resistanting insulation pipe is that the 1/2--1/3 of other insulation pipe diameter original is thick; 4, the life-span is incubated long: the thermal insulating material of corrosion-resistanting insulation pipe is characterized as inorganic matter allotment, high temperature resistant 800 degree, material and body are combined closely seamless, crack can not be separated with thermal insulation pipe due to temperature variation, stop the generation of three kinds of transfer modes (conduction, convection current, radiation) of heat, the link of the mouth of pipe is also that the thermal insulating material of same material is constructed, and has ensured the unification of thermal insulation layer material, jointing cracking and difference variation can not occur and occur obscission.Software watertightness barrier also has heat insulation function; 5, interface construction is succinct: after mouth of pipe welding other which floor just can merge with raw material with the material construction of same material; 6, anti-external cause collapsing force is strong: thermal insulation layer and watertightness barrier are all softwares, combine closely with pipeline, and pipe is bending also can not come off and crack, and friction or shock can not destroy soft material, only it can be made locally deformation to occur, and its insulation or waterproof efficacy also exist.After exterior object pierces through protective coating, watertightness barrier, thermal insulation layer, erosion is also only corroded the place of breakdown point, and the face that can not expand, can not expand because the feature of watertightness barrier, thermal insulation layer, nano anti-corrosive layer determines damage envelope; 7, long service life: the inside and outside wall of steel pipe makes the anti-corrosion life of steel pipe be more than ten times of original pipeline after using nano anti-corrosive material processed.Thermal insulating material and steel pipe are combined closely and are made heat insulation effect and life-span be former more than ten times of being incubated the life-span.8, of many uses: this insulation antiseptic pipe can be applicable on water delivery, oil transportation, gas transmission, all kinds of industrial chemicals of conveying.
Accompanying drawing illustrates:
Accompanying drawing 1 is structure sectional view of the present utility model;
Accompanying drawing 2 is structural representations that the utility model outer cover has bracing ring.
1-PE protective layer in figure, 2-software watertightness barrier, 3-high flame retardant receives base thermal insulating soft layer, 4-nanometer external anti-corrosion layer, 5-steel pipe, anticorrosive coat in 6-nanometer, 7-bracing ring.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in FIG.; this trenchless engineering special anti-corrosion thermal insulation pipe comprises steel pipe 5; described steel pipe 5 inside and outside wall is respectively equipped with anticorrosive coat 6 and nanometer external anti-corrosion layer 4 in nanometer, and nanometer external anti-corrosion layer 4 outer surface is provided with high flame retardant successively and receives base thermal insulating soft layer 3, software watertightness barrier 2 and PE protective layer 1.Anti-corrosion heat insulation pipe outer wall has a bracing ring 7 at interval of 2 meters of covers.
Anticorrosive coat and nanometer external anti-corrosion layer in nanometer in such scheme: steel pipe inside and outside wall utilizes nanometer material to carry out eliminating rust and preservative treatment; nano anti-corrosive layer has two kinds of functions: protection surface and priming paint; its characteristic is that the metal surface of having got rusty is converted to the protective layer with inertia; this protective layer can remove moisture and anticorrosive, makes surface no longer corrosion.Surface effect after process can maintain for a long time.Protect as more permanent corrosion.
In such scheme, high flame retardant receives base thermal insulating soft layer: it is fire-resistant, high temperature resistant, fire-retardant that high flame retardant receives base thermal insulating soft layer: base complex heat-preservation of receiving is inorganic silicate complex technique, and under 2000 degree of high temperature, performance does not change, and does not fire-resistantly fire, and has fire retardation; Environmental protection: base complex heat-preservation of receiving is nontoxic, without any chafe composition, not aging, acid resistant alkali, oil resistant, corrosion-resistant, to environment without any pollution; Energy-conservation: base complex heat-preservation cohesive force of receiving is strong, does not come off, does not ftracture, not hollowing, stop the cold bridge heat waste phenomenon that traditional section bar seam crossing produces.Light weight, high insulating effect, reduce thermal loss to greatest extent.More energy-conservation than common rock wool heat-preservation more than 10%; Long service life: receiving working life of base complex heat-preservation technology is more than 10 times of other common heat preservation technology, and once drop into and use indefinite duration, thermal insulation property is stablized unattenuated.The heat insulating work of non-rainwater pouring leaching condition can without the need to external protection for a long time without the sorrow come off; Cost performance is high: once drop into, and the working life more than 30 years, than other common insulation saving 200%, replaces common rock wool with this thermal insulating material, half a year recoverable fully invested; Anticorrosion: receive base compound insulating material evenly, fine and close, the physical arrangement of whole, is combined with heat-preserving equipment intimate surface, metal oxidation resistance and anti-corrosive properties is strengthened, prolongation heat-preserving equipment working life; Waterproof: adopt the hydrophobicity technology that hair porosity ratio is higher, its surface contact angle is greater than 90 degree, and the interfacial tension on liquid and solid contact interface is greater than solid interface tension force, and liquid can not soak solid, moisture can be stoped to infiltrate, therefore the water sorption of material can be reduced.In addition, its porosity ratio is higher, is conducive to water vapor permeation and passes through; Keep in repair easy: only need do " point " in helpdesk and process.Once there is dew point in pipeline, its liquid in the outer penetration of this thermal insulating material out, can make the variable color of this insulation appearance, will soon find out dew point and repair; Engineering perception is good: can design as requested, makes insulation surface more attractive in appearance.Insulation surface is without the need to additional protecting jacket, and engineering flat appearance, color are soft, can be coated with shades of colour as required; Compared with similar products: heat insulation effect is sustained, there will not be caves in causes effect to decline, and the life-span is long, has antisepsis concurrently.Receive base compound insulating material and section bar thereof have anti-aging, endurance, fire-resistant, do not fire, the better performance advantage such as extension tension, easily construction; Product standard number: Q/YGB001-2009.
Software watertightness barrier in such scheme: software waterproof paint, at formation one deck watertightness barrier that thermal insulation layer is outside tight, owing to being the characteristic of software, is not easy to damage when it is subject to external force collision and destroys.
In such scheme, PE protective coating: PE protects outer injury of directly bearing the external world, reduces the destruction of outer bound pair pipeline, also plays effective protection to the erosion of acid, alkali, salt.
Supporting protection circle in such scheme: guard ring pipeline being installed a resinae every two meters; its effect is when pipeline is when laying; tube wall does not occur to rub with ground, reduces the function of your each working lining of damage of pipeline local pressure while protection protective coating.
Claims (2)
1. a trenchless engineering special anti-corrosion thermal insulation pipe; comprise steel pipe (5); it is characterized in that: described steel pipe (5) inside and outside wall is respectively equipped with anticorrosive coat in nanometer (6) and nanometer external anti-corrosion layer (4), nanometer external anti-corrosion layer (4) outer surface is provided with high flame retardant successively and receives base thermal insulating soft layer (3), software watertightness barrier (2) and PE protective layer (1).
2. trenchless engineering special anti-corrosion thermal insulation pipe according to claim 1, is characterized in that: anti-corrosion heat insulation pipe outer wall has a bracing ring (7) at interval of 2 meters of covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168659.8U CN204493921U (en) | 2015-03-25 | 2015-03-25 | Trenchless engineering special anti-corrosion thermal insulation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168659.8U CN204493921U (en) | 2015-03-25 | 2015-03-25 | Trenchless engineering special anti-corrosion thermal insulation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493921U true CN204493921U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168659.8U Expired - Fee Related CN204493921U (en) | 2015-03-25 | 2015-03-25 | Trenchless engineering special anti-corrosion thermal insulation pipe |
Country Status (1)
| Country | Link |
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| CN (1) | CN204493921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219538A (en) * | 2019-12-24 | 2020-06-02 | 重庆市中科大业建筑科技有限公司 | Construction process for replacing waterproof casing pipe |
-
2015
- 2015-03-25 CN CN201520168659.8U patent/CN204493921U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219538A (en) * | 2019-12-24 | 2020-06-02 | 重庆市中科大业建筑科技有限公司 | Construction process for replacing waterproof casing pipe |
| CN111219538B (en) * | 2019-12-24 | 2022-02-08 | 重庆市中科大业建筑科技有限公司 | Construction process for replacing waterproof casing pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |