CN206929452U - A kind of combustion gas PE multiple tubes - Google Patents
A kind of combustion gas PE multiple tubes Download PDFInfo
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- CN206929452U CN206929452U CN201720868316.1U CN201720868316U CN206929452U CN 206929452 U CN206929452 U CN 206929452U CN 201720868316 U CN201720868316 U CN 201720868316U CN 206929452 U CN206929452 U CN 206929452U
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- combustion gas
- multiple tubes
- tubing body
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Abstract
A kind of combustion gas PE multiple tubes, including tubing body, the tubing body include antistatic backing, PE layers, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer from the inside to the outside, and the thickness ratio of the PE layers and foaming layer is 1：1‑1.5.
Description
Technical field
Municipal works field is the utility model is related to, more particularly to a kind of combustion gas PE multiple tubes.
Background technology
City gas pipeline uses metal material (steel, cast iron) always in the past, and polyethylene pipe is good as a kind of light intensity
Corrosion-resistant new material, abroad existing complete substituted metal pipe trend, it is in light weight, flexible that this is due to that PE pipes have
It is good, can wind, be easy for construction, be corrosion-resistant, the smooth pressure loss of inner-walls of duct is small, air-tightness is safe and reliable, to settlement of foundation or
Vibrations have the advantages that stronger adaptability, chemical property is excellent, service life length (life-span was up to more than 50 years), due to PE pipes
There are the unexistent particular advantages of metallic conduit, in China's city gas transmission and distribution network, PE pipes are progressively applied.
PE resins, are polymerized by monomer ethylene, due in polymerization because the polymeric reaction conditions such as pressure, temperature are different,
The resin of different densities can be drawn, polyethylene pipe is traditionally divided into low-density and linear low density polyethylene (LLDPE) (LDPE according to density
And LLDPE) (density is 0.900~0.930g/cm to pipe3), (density is 0.930~0.940g/ to medium density polyethylene (MDPE) pipe
cm3) and high density polyethylene (HDPE) (HDPE) pipe (density 0.940-0.965g/cm3).Due to the continuous progress of material, according to development
Stage and the difference of performance, the grade differentiation of material being generated, density can not reflect essential performance of the polyethylene as tubing, because
This is classified and named to tubing and its raw material according to the long-term hydrostatic strength (MRS) of polyethylene pipe in the world at present.It is long
Phase hydrostatic strength refers to cause what is calculated during pipe failure when being continuously applied on the polyvinyl resin tubulation tube wall 50 years
Ring tensile stress on tube wall, the value are the bases of pipe structure design.The engineering design concept and metal tube of polyethylene pipe
Difference, the design for metal tube, the yield strength ratio at a temperature of extensive use environment.And polyethylene pipe and metal tube are not
Together, it is influenceed by sustained stress and temperature change, therefore the design stress of polyethylene pipe should determine according to long-term strength, i.e.,
Determined by drawing under constant temperature the curve of stress and time to rupture.According to the long-term hydrostatic strength (MRS) of polyethylene pipe, state
Polyethylene pipe material is divided into five grades of PE32, PE40, PE63, PE80 and PE100 on border, and is used for the material master of Gas Pipe
If PE80 and PE100.
Utility model content
The utility model provides a kind of combustion gas PE multiple tubes, including tubing body, the tubing body wrap from the inside to the outside
Include antistatic backing, PE layers, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer, the PE layers and foaming layer
Thickness ratio be 1：1-1.5.
In some embodiments, the antistatic backing is the antistatic backings of Drewplast 017.
In some embodiments, the material of the PE layers is PE100.
In some embodiments, the adhesive layer is maleic anhydride modified polyethylene.
In some embodiments, the barrier layer is EVOH.
In some embodiments, the foaming layer is polyurathamc.
In some embodiments, the thickness of the glass resin flake layer is 150-250 μm.
In some embodiments, the nominal outside diameter of the tubing body is 20-650mm.
In some embodiments, the standard size ratio of the tubing body is 11 or 17.6.
The beneficial effects of the utility model are that antistatic backing can effectively prevent electrostatic, improve the security of tubing, and
Safer to gas pipeline using the antistatic backings of Drewplast 017, long-term use there will not be small molecule precipitation.Wire netting
Layer positioned at barrier layer and foaming layer between, the toughness and intensity of tubing can be effectively improved, at the same also improve metal net layer and
Adhesive force between polymeric layer.Foaming layer not only has the function that heat-insulated, additionally it is possible to protects metal net layer, suppresses the slow of tubing
The performances such as fast crack growth and rapid crack propagation.Glass resin flake can effectively play function that is corrosion-resistant and scratching, be applied in tubing
If when play best protection.
Brief description of the drawings
Fig. 1 is the schematic diagram of combustion gas provided by the utility model PE multiple tubes；
As follows, tubing body 1, antistatic backing 2, PE layers 3, adhesive layer 4, barrier layer 5, metal net layer 6, hair are respectively marked in figure
Alveolar layer 7, glass resin flake layer 8.
Embodiment
Such as Fig. 1, a kind of combustion gas PE multiple tubes, including tubing body 1, the tubing body include antistatic from the inside to the outside
Layer 2, PE layers 3, adhesive layer 4, barrier layer 5, metal net layer 6, foaming layer 7, glass resin flake layer 8, the PE layers and foaming layer
Thickness ratio be 1：1-1.5.
In some embodiments, the antistatic backing is the antistatic backings of Drewplast 017.
Drewplast 017 is fatty acid monoglyceride class non-ionic antistatic agent.Drewplast as commodity
017 is solid.Free acid content (oleic acid) 1.5%.Glycerol content 4%.Monoester content 40%.Moisture 0.5%.57 DEG C of fusing point.
250 DEG C of flash-point.270 DEG C of ignition point.It is not soluble in water, acetone, ethanol, trichloro ethylene and the diformazan of heat are dissolved in 5% concentration
Benzene etc..The heat endurance and the transparency of this product are good, in addition to antistatic efficiency, also with slipping.
In some embodiments, the material of the PE layers is PE100.
In some embodiments, the adhesive layer is maleic anhydride modified polyethylene.Maleic anhydride modified polyethylene can
To be directly commercially available.
In some embodiments, the barrier layer is EVOH.EVOH is ethylene-vinyl alcohol copolymer, to gas, gas
Taste, spices, solvent etc. show excellent blocking effect.
In some embodiments, the foaming layer is polyurathamc.
In some embodiments, the thickness of the glass resin flake layer is 150-250 μm.Coating glass can be passed through
Scale resin coating obtains.
Glass flake is alkali glass in the melting by more than 1200 DEG C, through the work such as froth, cool down, crush, screen and mill
Obtained by skill step.Using this glass flake as the corrosion-inhibiting coating of filler, there is very high cohesive force and excellent chemically-resistant
Medicine and ageing resistace.Glass flake is penetrated into by medium, gas, vapor is much smaller than common fiberglass.It is not easy
Medium Diffusion is produced, the physical damages such as scattered bottom burn into, bubbling, stripping can be effectively prevented from.Shrinkage factor is small during hardening.Due to
Glass flake has disperseed stress, and the residual stress of each contact surface is small, and thermal coefficient of expansion is also small, thus adhesion strength will not because of heat expansion and
Decay, heat endurance are good.Wearability and to scratch repellence it is stronger, meet mechanical damage be confined to part, diffusion tendency is small.
When the thickness of glass resin flake layer is too high, it is impossible to form sheet separation layer and labyrinth effect, easily produce bubble.
And thickness it is too low when, can not form effective barrier layer, reduce corrosion resistance.
In some embodiments, the nominal outside diameter of the tubing body is 20-650mm.
In some embodiments, the standard size ratio of the tubing body is 11 or 17.6.
Combustion gas provided by the utility model PE multiple tubes, should not only have good economy, it is also stable with interface
Reliably, the series of advantages such as material shock resistance, cracking resistance, ageing-resistant, corrosion-resistant.The combustion gas is electric with being used between PE multiple tubes
Hot melting way connects, and the intensity of joint is higher than pipeline body intensity, and seam will not break due to the effect of soil movement or changing load
Open.Low-temperature impact resistance is good, can be used safely in -60~60 DEG C of temperature ranges.During winter construction, because of material impact resistance
It is good, embrittlement will not occur.It is particularly in the construction of pipe network in the work progress in no-dig technique, scratch is unavoidable.Scratch
The stress concentration of material is caused, triggers the destruction of pipeline.Combustion gas provided by the utility model can pass through lamination with PE multiple tubes
Co-extrusion obtains, and has the ability of higher resistance slow crack growth, therefore also possess higher scratch-resistant ability.
The utility model is expanded on further with reference to specific embodiment.
Embodiment 1
Such as Fig. 1, a kind of combustion gas PE multiple tubes, including tubing body 1, the tubing body include antistatic from the inside to the outside
Layer 2, PE layers 3, adhesive layer 4, barrier layer 5, metal net layer 6, foaming layer 7, glass resin flake layer 8, the PE layers and foaming layer
Thickness ratio be 1：1.
The antistatic backing is the antistatic backings of Drewplast 017, and the materials of the PE layers is PE100, the adhesive layer
For maleic anhydride modified polyethylene, the barrier layer is EVOH, and the foaming layer is polyurathamc,
The thickness of the glass resin flake layer is 150 μm, and the nominal outside diameter of the tubing body is 20mm, the tubing
The standard size ratio of body is 11.
Embodiment 2
A kind of combustion gas PE multiple tubes, including tubing body, the tubing body include antistatic backing, PE from the inside to the outside
The thickness ratio of layer, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer, the PE layers and foaming layer is 1：
1.2。
The antistatic backing is the antistatic backings of Drewplast 017, and the materials of the PE layers is PE100, the adhesive layer
For maleic anhydride modified polyethylene, the barrier layer is EVOH, and the foaming layer is polyurathamc, the glass resin flake
The thickness of layer is 200 μm, and the nominal outside diameter of the tubing body is 90mm, and the standard size ratio of the tubing body is 17.6.
Embodiment 3
A kind of combustion gas PE multiple tubes, including tubing body, the tubing body include antistatic backing, PE from the inside to the outside
The thickness ratio of layer, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer, the PE layers and foaming layer is 1：
1.5。
The antistatic backing is the antistatic backings of Drewplast 017, and the materials of the PE layers is PE100, the adhesive layer
For maleic anhydride modified polyethylene, the barrier layer is EVOH, and the foaming layer is polyurathamc, the glass resin flake
The thickness of layer is 250 μm, and the nominal outside diameter of the tubing body is 650mm, and the standard size ratio of the tubing body is 11.
Embodiment 4
A kind of combustion gas PE multiple tubes, including tubing body, the tubing body include antistatic backing, PE from the inside to the outside
The thickness ratio of layer, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer, the PE layers and foaming layer is 1：
1。
The antistatic backing is the antistatic backings of Drewplast 017, and the materials of the PE layers is PE100, the adhesive layer
For maleic anhydride modified polyethylene, the barrier layer is EVOH, and the foaming layer is polyurathamc, the glass resin flake
The thickness of layer is 180 μm, and the nominal outside diameter of the tubing body is 200mm, and the standard size ratio of the tubing body is 17.6.
Claims (9)
1. a kind of combustion gas PE multiple tubes, it is characterised in that including tubing body, the tubing body includes anti-quiet from the inside to the outside
The thickness of electric layer, PE layers, adhesive layer, barrier layer, metal net layer, foaming layer, glass resin flake layer, the PE layers and foaming layer
Than for 1：1-1.5.
2. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the antistatic backing is Drewplast 017
Antistatic backing.
3. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the material of the PE layers is PE100.
4. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the adhesive layer is maleic anhydride modified poly- second
Alkene.
5. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the barrier layer is EVOH.
6. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the foaming layer is polyurathamc.
7. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the thickness of the glass resin flake layer is
150-250μm。
8. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the nominal outside diameter of the tubing body is 20-
650mm。
9. combustion gas as claimed in claim 1 PE multiple tubes, it is characterised in that the standard size ratio of the tubing body is 11
Or 17.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868316.1U CN206929452U (en) | 2017-07-18 | 2017-07-18 | A kind of combustion gas PE multiple tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868316.1U CN206929452U (en) | 2017-07-18 | 2017-07-18 | A kind of combustion gas PE multiple tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929452U true CN206929452U (en) | 2018-01-26 |
Family
ID=61355679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720868316.1U Expired - Fee Related CN206929452U (en) | 2017-07-18 | 2017-07-18 | A kind of combustion gas PE multiple tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331978A (en) * | 2018-02-08 | 2018-07-27 | 刘肖俊 | A kind of municipal drainage blow-off line that there is excellent ring stiffness and change flexibility |
-
2017
- 2017-07-18 CN CN201720868316.1U patent/CN206929452U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331978A (en) * | 2018-02-08 | 2018-07-27 | 刘肖俊 | A kind of municipal drainage blow-off line that there is excellent ring stiffness and change flexibility |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 Termination date: 20200718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |