CN204554091U - Multilayer composite petroleum pipeline - Google Patents
Multilayer composite petroleum pipeline Download PDFInfo
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- CN204554091U CN204554091U CN201420784637.XU CN201420784637U CN204554091U CN 204554091 U CN204554091 U CN 204554091U CN 201420784637 U CN201420784637 U CN 201420784637U CN 204554091 U CN204554091 U CN 204554091U
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Abstract
The utility model relates to a kind of multilayer composite petroleum pipeline, comprise: the inner side surface of outer tube wall (1) is provided with low precipitation barrier layer (4), described low precipitation barrier layer (4) can stop fluid or evaporant from described multilayer composite petroleum pipeline internal penetration to the external world.Multilayer composite petroleum pipeline of the present utility model can effectively stop fluid or evaporant to penetrate into the external world from tubular body, barrier property when improve transport pipe oil transportation and osmotic-pressure-tolerant energy, decrease the environmental pollution because fluid permeating volatile causes, and the working life of body can be extended, these advantages are all conducive to the usability and the Safety performance that improve vehicle fuel system.
Description
Technical field
The utility model relates to pipe fitting technical field, particularly relates to a kind of multilayer composite petroleum pipeline.
Background technique
That adopts in current vehicle mostly is single polymer layer pipe with transport pipe, the resistance to penetrating power of tube wall is poor, effectively can not prevent the infiltration of fluid and evaporant thereof, be difficult to reach higher osmotic-pressure-tolerant international standard requirement, and easily because of the permeating volatile environmental pollution of fluid and evaporant, the working life of body is lower, is unfavorable for the usability improving entire vehicle.Thus single polymer layer pipe of the prior art can not meet the demand of present high performance vehicle oil-fired system, need improve the transport pipe of existing single layer structure for this reason.
Model utility content
The purpose of this utility model proposes a kind of multilayer composite petroleum pipeline, barrier property when can improve oil transportation and osmotic-pressure-tolerant energy, stops fluid or its evaporant to penetrate into the external world.
For achieving the above object, the utility model provides a kind of multilayer composite petroleum pipeline, comprise: the inner side surface of outer tube wall 1 is provided with low precipitation barrier layer 4, described low precipitation barrier layer 4 can stop fluid or evaporant from described multilayer composite petroleum pipeline internal penetration to the external world, and reduce oligomer precipitation, prevent the pipeline blockage because oligomer and plasticizer cause, described low precipitation barrier layer 4 is polyamide 9T layer.
Further, between described low precipitation barrier layer 4 and described outer tube wall 1, be also provided with nylon polymerization nitride layer 3, fixed by adhesive layer 2 between described nylon polymerization nitride layer 3 and described outer tube wall 1.
Further, described nylon polymerization nitride layer 3 is polycaprolactam amine layer, and described adhesive layer 2 is polyamide alloy material layer, and described outer tube wall 1 is polyamide 12 layers.
Further, described nylon polymerization nitride layer 3 is polycaprolactam amine layer, or described adhesive layer 2 is polyamide alloy material layer, or described outer tube wall 1 is polyamide 12 layers.
Further, the thickness of described outer tube wall 1 is 0.3 ~ 0.6mm, and the thickness of described adhesive layer 2 is 0.05 ~ 0.2mm, and the thickness of described nylon polymerization nitride layer 3 is 0.2 ~ 0.4mm, and the thickness of described low precipitation barrier layer 4 is 0.1 ~ 0.3mm.
Further, the thickness of described outer tube wall 1 is 0.3 ~ 0.6mm, or the thickness of described adhesive layer 2 is 0.05 ~ 0.2mm, or the thickness of described nylon polymerization nitride layer 3 is 0.2 ~ 0.4mm, or the thickness of described low precipitation barrier layer 4 is 0.1 ~ 0.3mm.
Further, described multilayer composite petroleum pipeline is processed by the mode extruded.
Based on technique scheme, the multilayer composite petroleum pipeline of the utility model embodiment, by arranging low precipitation barrier layer on the inner side surface of body outer tube wall, fluid or evaporant can be effectively stoped to penetrate into the external world from tubular body, barrier property when improve transport pipe oil transportation and osmotic-pressure-tolerant energy, decrease the environmental pollution because fluid permeating volatile causes, and can extend the working life of body, these advantages are all conducive to the usability and the Safety performance that improve vehicle fuel system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of an embodiment of the utility model multilayer composite petroleum pipeline;
Fig. 2 is the structural representation of another embodiment of the utility model multilayer composite petroleum pipeline.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The transport pipe adopted in current vehicle mostly is single polymer layer pipe, the resistance to penetrating power of tube wall is poor, effectively can not prevent the infiltration of fluid and evaporant thereof, easily because of the permeating volatile environmental pollution of fluid and evaporant, the working life of body is lower, is unfavorable for the overall usability improving vehicle.For the problem of single polymer layer pipe osmotic-pressure-tolerant difference, the utility model provides a kind of multilayer composite petroleum pipeline, in order to improve barrier property and the osmotic-pressure-tolerant energy of transport pipe, will be described in detail below.
The utility model provides a kind of multilayer composite petroleum pipeline, as shown in Figure 1, comprising: the inner side surface of outer tube wall 1 is provided with low precipitation barrier layer 4, and low precipitation barrier layer 4 can stop fluid or evaporant to penetrate into the external world from tubular body.Preferably, this multilayer composite petroleum pipeline can by extrude or other integrated mode is processed.
The multilayer composite petroleum pipeline of this kind of embodiment, by arranging low precipitation barrier layer on the inner side surface of outer tube wall, fluid or evaporant can be effectively stoped to penetrate into the external world from tubular body, barrier property when improve transport pipe oil transportation and osmotic-pressure-tolerant energy, decrease the environmental pollution because fluid permeating volatile causes, and the working life of body can be extended, these advantages are all conducive to the usability and the Safety performance that improve vehicle fuel system, solve the problem that single polymer layer pipe of the prior art can not meet present high performance vehicle oil-fired system.This kind of multilayer composite petroleum pipeline, except using as vehicle transport pipe, also can be used as other occasion and uses with the conveyance conduit of other liquid.
In a preferred embodiment, as shown in Figure 2, between low precipitation barrier layer 4 and outer tube wall 1, be also provided with nylon polymerization nitride layer 3, fixed by adhesive layer 2 between nylon polymerization nitride layer 3 and outer tube wall 1.That is, this multilayer composite petroleum pipeline, the inner side surface of outer tube wall sets up nylon polymerization nitride layer 3 and low precipitation barrier layer 4 from outside to inside successively, is provided with adhesive layer 2 between nylon polymerization nitride layer 3 and outer tube wall 1.This embodiment is owing to adding nylon polymerization nitride layer 3 further, the barrier property of transport pipe, osmotic-pressure-tolerant energy and tubing intensity can be improved further, it is less that fluid or evaporant penetrate into extraneous possibility from tubular body, and the transport pipe performance thus with this kind of Rotating fields is more superior.
Material selected by each layer of transport pipe, can choose according to many-sided requirements such as the characteristic of fed sheet of a media, operating ambient temperature, structural strength, impact resistance and corrosion resistancies, engineering staff in practice, can make the overall characteristic of transport pipe reach optimum according to the characteristic of different materials.
In a specific embodiment, low precipitation barrier layer 4 is polyamide 9T layer (being called for short PA9T layer), nylon polymerization nitride layer 3 is polycaprolactam amine layer (being called for short PA6 layer), adhesive layer 2 is polyamide alloy material layer, and/or outer tube wall 1 is polyamide 12 layers (being called for short PA12 layer).But the selection of every layer of material is not only confined to this, the mechanical property that engineering staff can reach according to actual needs, chemical characteristics and temperature characteristic are selected.
Preferably, the thickness of outer tube wall 1 is 0.3 ~ 0.6mm, and the thickness of adhesive layer 2 is 0.05 ~ 0.2mm, and the thickness of nylon polymerization nitride layer 3 is 0.2 ~ 0.4mm, and/or the thickness of low precipitation barrier layer 4 is 0.1 ~ 0.3mm.These thickness ranges are preferred number ranges that the utility model provides for a kind of specific embodiment, but the diameter due to transport pipe in reality and the requirement to combination property different, engineering staff can select according to the situation of reality the Rotating fields that thickness is suitable.
Except osmotic-pressure-tolerant, the structural pipe wall intensity of transport pipe, impact resistance, corrosion resistance and high and low temperature resistance etc. are all the important indicators weighing transport pipe combination property.The transport pipe in prior art, vehicle adopted mostly is single polymer layer pipe, the abilities such as structural pipe wall intensity, shock resistance, anticorrosive, resistance to infiltration, high-low temperature resistant all can not meet the demand of present high performance vehicle, easily deform when running into the object collides such as stone, easily occur aging under using because of season or motor long playing high/low temperature alternation, also cannot bear higher operating temperature simultaneously.The chemicals-resistant corrosion ability extreme difference of a lot of single polymer layer pipe and not hydrolysis resistance, in use have oligomer or plasticizer blocking pipe simultaneously.Thus the working life of transport pipe is lower, is unfavorable for the overall usability improving vehicle fuel system.
Compare the single polymer layer pipe with prior art, this preferred embodiment of the present utility model is provided with low precipitation barrier layer 4 inside outer tube wall 1, and preferably select polyamide 9T layer, this material has the following advantages:
(1) barrier property: substantially separate out without oligomer in using process and all have fine barrier property to fuel oil, ethanol and biodiesel etc., its barrier property is far above common polyamide material, effectively can prevent the infiltration of oil and evaporant thereof, make the resistance to infiltration international standard usage requirement that product reaches higher, and the pollution to environment can be avoided because of the raising of osmotic-pressure-tolerant energy, meet environmental requirement.And this material can reduce oligomer and separate out, and effectively prevents the pipeline blockage because oligomer and plasticizer cause.
(2) temperature-resistance characteristic and mechanical property: because this material glass temperature is higher, still good toughness can be ensured in high temperature environments by the tubing of this materials processing, also this characteristic makes the overall heatproof rank of body improve just, excellent shock resistance.Compared with standard polyamides material, the intensity that polyamide 9T is still remained valid at higher temperatures and toughness, the overall construction intensity of body can be strengthened greatly.In addition, polyamide 9T also possesses excellent high-low temperature resistant alternation ability, and good thermal stability, makes the working life that this material can reach longer.
(3) corrosion resistance: PA9T can survive chemical product, oil, alcohol, acid, villaumite, hot water and other fluid, its corrosion resistance exceeds all polyamide materials, make it be not easy by these flow-induced corrosions, and its water absorption rate is low.
Can find out that polyamide 9T layer has excellent barrier property, structural strength, impact resistance, corrosion resistance and high and low temperature resistance, thus the transport pipe being provided with polyamide 9T layer inside outer tube wall 1 also possesses good resistance to Penetration Signature, mechanical property, temperature-resistance characteristic and chemical characteristics, if think the various performances improving tubing further, the thickness of polyamide 9T layer suitably can be increased.Compared with prior art, this transport pipe can reduce environmental pollution because fluid permeating volatile causes and the hidden danger brought vehicle safety; Not easily deform when running into the object collides such as stone; Not easily occur aging under using because of season or motor long playing high/low temperature alternation, and extend the working life of body; Corrosion resistance and good, can not be corroded by the fed sheet of a media in body; Oligomer is separated out few in addition, effectively can prevent the pipeline blockage because oligomer and plasticizer cause.These advantages are all conducive to the usability and the Safety performance that improve vehicle fuel system.
In addition polycaprolactam cost of material is lower, can increase lower cost materials thickness in actual design, reduces high cost material thickness, thus reduces the cost of tubing, and after making MULTILAYER COMPOSITE, tubing overall price is lower than common single polymer layer pipe.This multilayer composite petroleum pipeline is easily through the mode processing of extruding in addition, is certainly also applicable to other processing mode, such as blowing etc., therefore also has and be easy to produce and the low distinguishing feature of processing cost.So multilayer composite petroleum pipeline of the present utility model is when using as vehicle transport pipe, the overall usability of vehicle can be made to be enhanced and to improve.
To sum up, the transport pipe of the utility model above-described embodiment has high temperature resistant, hydrolysis resistance, low precipitation, shock resistance, anticorrosive, resistance to infiltration, high-low temperature resistant alternation ability is strong, cost is low, the life-span is long, the easy feature such as processing.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And do not depart from the spirit of technical solutions of the utility model, all should be encompassed in the utility model request protection technological scheme scope in the middle of.
Claims (7)
1. a multilayer composite petroleum pipeline, it is characterized in that, comprise: the inner side surface of outer tube wall (1) is provided with low precipitation barrier layer (4), described low precipitation barrier layer (4) can stop fluid or evaporant from described multilayer composite petroleum pipeline internal penetration to the external world, and reduce oligomer precipitation, prevent the pipeline blockage because oligomer and plasticizer cause, described low precipitation barrier layer (4) is polyamide 9T layer.
2. multilayer composite petroleum pipeline according to claim 1, it is characterized in that, also be provided with nylon polymerization nitride layer (3) between described low precipitation barrier layer (4) and described outer tube wall (1), fixed by adhesive layer (2) between described nylon polymerization nitride layer (3) and described outer tube wall (1).
3. multilayer composite petroleum pipeline according to claim 2, it is characterized in that, described nylon polymerization nitride layer (3) is polycaprolactam amine layer, and described adhesive layer (2) is polyamide alloy material layer, and described outer tube wall (1) is polyamide 12 layers.
4. multilayer composite petroleum pipeline according to claim 2, it is characterized in that, described nylon polymerization nitride layer (3) is polycaprolactam amine layer, or described adhesive layer (2) is polyamide alloy material layer, or described outer tube wall (1) is polyamide 12 layers.
5. multilayer composite petroleum pipeline according to claim 2, it is characterized in that, the thickness of described outer tube wall (1) is 0.3 ~ 0.6mm, the thickness of described adhesive layer (2) is 0.05 ~ 0.2mm, the thickness of described nylon polymerization nitride layer (3) is 0.2 ~ 0.4mm, and the thickness of described low precipitation barrier layer (4) is 0.1 ~ 0.3mm.
6. multilayer composite petroleum pipeline according to claim 2, it is characterized in that, the thickness of described outer tube wall (1) is 0.3 ~ 0.6mm, or the thickness of described adhesive layer (2) is 0.05 ~ 0.2mm, or the thickness of described nylon polymerization nitride layer (3) is 0.2 ~ 0.4mm, or the thickness of described low precipitation barrier layer (4) is 0.1 ~ 0.3mm.
7., according to the arbitrary described multilayer composite petroleum pipeline of claim 1 ~ 6, it is characterized in that, described multilayer composite petroleum pipeline is processed by the mode extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784637.XU CN204554091U (en) | 2014-12-12 | 2014-12-12 | Multilayer composite petroleum pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784637.XU CN204554091U (en) | 2014-12-12 | 2014-12-12 | Multilayer composite petroleum pipeline |
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| CN204554091U true CN204554091U (en) | 2015-08-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405895A (en) * | 2016-01-15 | 2017-11-28 | 阿科玛法国公司 | For the extraction in biogasoline with improved multilayer tubular structures body of resistance and application thereof |
| CN107428139A (en) * | 2016-01-15 | 2017-12-01 | 阿科玛法国公司 | For multilayer tubular structures body and its purposes of the extraction in biogasoline with improved resistance |
-
2014
- 2014-12-12 CN CN201420784637.XU patent/CN204554091U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405895A (en) * | 2016-01-15 | 2017-11-28 | 阿科玛法国公司 | For the extraction in biogasoline with improved multilayer tubular structures body of resistance and application thereof |
| CN107428139A (en) * | 2016-01-15 | 2017-12-01 | 阿科玛法国公司 | For multilayer tubular structures body and its purposes of the extraction in biogasoline with improved resistance |
| CN107428139B (en) * | 2016-01-15 | 2020-11-03 | 阿科玛法国公司 | Multilayer tubular structure with improved resistance to extraction in biogasoline and use thereof |
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