CN207064968U - A kind of double-layer heat insulation plastic-coated steel - Google Patents
A kind of double-layer heat insulation plastic-coated steel Download PDFInfo
- Publication number
- CN207064968U CN207064968U CN201720794210.1U CN201720794210U CN207064968U CN 207064968 U CN207064968 U CN 207064968U CN 201720794210 U CN201720794210 U CN 201720794210U CN 207064968 U CN207064968 U CN 207064968U
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- undercoating
- pipe
- outside
- coated steel
- socketed
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Abstract
The utility model discloses a kind of double-layer heat insulation plastic-coated steel; including steel pipe; external coating is provided with the outer surface of steel pipe; insulating tube is connect in external coating outer sheath; also be connected heat tracing pipe between insulating tube and external coating; protection sleeve pipe is also socketed on the outside of insulating tube; grid is provided with the inside of first undercoating; grid is socketed on the outside of keel shoe; keel shoe includes one group of parallel and spaced annulus; it is fixedly connected between per two neighboring annulus by one group of equally distributed connecting rod, the second undercoating of spraying connection on the inside of keel shoe.The advantages of the utility model：The utility model is provided with attemperator on the outside of plastic-coated steel, trandfer fluid can be incubated or be heated, grid is provided between two layers of undercoating, enhance internally coated adhesive force, undercoating caused by long-time use can effectively being prevented is broken, conducting rod is provided with flange, can solve the problem that the problem of plastic-coated steel easily produces electrostatic.
Description
Technical field
It the utility model is related to pipe technology field, more particularly to a kind of double-layer heat insulation plastic-coated steel.
Background technology
Plastic-coated steel is to play protection steel pipe inner wall by heating one layer of plastic layer on steel pipe inner wall with plastic spraying
A kind of pipeline, typically need to handle the inwall of steel pipe before plastic-coated, such as ball blast, derusting operation, make the interior of steel pipe
Wall is as far as possible bright and clean, increases the being firmly combined with property of coating layer and steel pipe inner wall, but plastic-coated steel often occurs in normal use
The phenomenon of coating layer rupture, this be due to the thermal coefficient of expansion gap of steel pipe and coating layer it is too big caused by, in the identical temperature difference
Under, the thermal volume expansion of coating layer will be far longer than the thermal volume expansion of steel pipe in itself, so in the larger situation of difference variation
Under, coating layer easily produces retractility stripping, separates and comes off with steel pipe when serious, loses the protective effect of coating layer, and this
Kind elongation percentage difference increases as temperature raises, especially when caliber is larger, the deformation of big lining area relative accumulation
Amount is big, and coating is more prone to shrink, ftractures, separates and comes off.
On the other hand, in the area of cold, steel duct easily freezes during plastic-coated steel is used, and can so make
Into line clogging, its performance is influenceed.
Utility model content
The purpose of this utility model is to solve shortcoming present in prior art, and a kind of double-layer heat insulation proposed applies
Plastic Steel Pipe.
To achieve these goals, the utility model employs following technical scheme：
A kind of double-layer heat insulation plastic-coated steel, including steel pipe, external coating is provided with the outer surface of steel pipe, it is characterised in that：
Socket insulating tube on the outside of external coating, be also connected heat tracing pipe between insulating tube and external coating, is also socketed on the outside of insulating tube
Protection sleeve pipe, grid is provided with the inside of first undercoating, grid is socketed on the outside of keel shoe, and keel shoe is parallel including one group
And spaced annulus, often it is fixedly connected between two neighboring annulus by one group of equally distributed connecting rod, in keel shoe
Inner side spraying the second undercoating of connection.
Preferably, a convex flange is respectively cooperating with the steel pipe both ends, epoxy is connected in convex flange surface spraying
Enamelled coating, in convex flange side mating connection conducting rod, conducting rod is set through the epoxy enamelled coating.
Preferably, the heat tracing pipe uses heating tape, and heat tracing pipe is socketed on the outside of external coating in the shape of a spiral.
The utility model has the advantage of：A kind of double-layer heat insulation plastic-coated steel provided by the utility model, relative to existing
Some steel pipes are easily installed, and attemperator is provided with the outside of plastic-coated steel, trandfer fluid can be incubated or be heated, two layers
Grid is provided between undercoating, enhances internally coated adhesive force, can effectively prevent undercoating caused by long-time use
Fracture, is provided with conducting rod on flange, by shielded cable connection conducting rod between adjacent two plastic-coated steel, can solve the problem that plastic-coated
Steel pipe easily produces the problem of electrostatic.
Brief description of the drawings
Fig. 1 is basic structure schematic diagram of the present utility model；
Fig. 2 is sectional view of the present utility model.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of double-layer heat insulation plastic-coated steel provided by the utility model, including steel pipe 1, in steel pipe 1
Outer surface be provided with external coating 1.1, external coating 1.1 is managed using PE, PE pipes and the hot-melt adhesive paste of steel pipe 1, it is characterised in that：Outside
The outside of coating 1.1 socket insulating tube 6, be also connected heat tracing pipe 5 between insulating tube 6 and external coating 1.1, and heat tracing pipe 5 uses
Heating tape, heat tracing pipe 5 are socketed in the outside of external coating 1.1 in the shape of a spiral.Protection sleeve pipe 7, protective case are also socketed in the outside of insulating tube 6
Pipe 7 is flexible metallic hose.
The first undercoating 1.2 is provided with the inner surface of steel pipe 1, the first undercoating 1.2 uses epoxy coating, and it is special
Sign is：Grid 3 is provided with the inner side of the first undercoating 1.2, gather square hole in grid 3, and grid 3 is socketed in keel shoe 4
Outside, keel shoe 4 include one group of parallel and spaced annulus 41, and annulus 41 uses elastic hollow plastic hoop, per adjacent two
It is fixedly connected between individual annulus 41 by one group of equally distributed connecting rod 42, connecting rod 42 is round bar shape structure, in connecting rod
42 both ends are respectively equipped with circular arc plug, and circular arc plug is connected with the clamping of annulus 41.The spraying connection second in the inner side of keel shoe 4
Undercoating 1.3, the second undercoating 1.3 use epoxy coating.
A convex flange 2 is respectively cooperating with the both ends of steel pipe 1, epoxy enamelled coating is connected in the surface spraying of convex flange 2,
In the side mating connection conducting rod 2.1 of convex flange 2, conducting rod 2.1 is set through the epoxy enamelled coating.Adjacent two Clad Steels
Electrically connected between pipe between two adjacent conducting rods 2.1 by conductive shield cable.
Claims (3)
1. a kind of double-layer heat insulation plastic-coated steel, including steel pipe（1）, in steel pipe（1）Outer surface be provided with external coating（1.1）, it is special
Sign is：In external coating（1.1）Outside is socketed insulating tube（6）, in insulating tube（6）With external coating（1.1）Between be also connected
Heat tracing pipe（5）, in insulating tube（6）Outside is also socketed protection sleeve pipe（7）, in steel pipe（1）Inner surface be provided with the first undercoating
（1.2）, in first undercoating（1.2）Inner side is provided with grid（3）, grid（3）It is socketed in keel shoe（4）Outside, keel shoe
（4）Including one group of parallel and spaced annulus（41）, per two neighboring annulus（41）Between it is equally distributed by one group
Connecting rod（42）It is fixedly connected, in keel shoe（4）Inner side spraying the second undercoating of connection（1.3）.
A kind of 2. double-layer heat insulation plastic-coated steel according to claim 1, it is characterised in that：In the steel pipe（1）Both ends point
A convex flange Pei not unified（2）, in convex flange（2）Surface spraying connects epoxy enamelled coating, in convex flange（2）Side coordinates
Connect conducting rod（2.1）, conducting rod（2.1）Set through the epoxy enamelled coating.
A kind of 3. double-layer heat insulation plastic-coated steel according to claim 1, it is characterised in that：The heat tracing pipe（5）Using companion
The torrid zone, heat tracing pipe（5）External coating is socketed in the shape of a spiral（1.1）Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794210.1U CN207064968U (en) | 2017-07-03 | 2017-07-03 | A kind of double-layer heat insulation plastic-coated steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794210.1U CN207064968U (en) | 2017-07-03 | 2017-07-03 | A kind of double-layer heat insulation plastic-coated steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064968U true CN207064968U (en) | 2018-03-02 |
Family
ID=61506866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720794210.1U Active CN207064968U (en) | 2017-07-03 | 2017-07-03 | A kind of double-layer heat insulation plastic-coated steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064968U (en) |
-
2017
- 2017-07-03 CN CN201720794210.1U patent/CN207064968U/en active Active
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