CN204042233U - High temperature resistant electric heating sebific duct - Google Patents
High temperature resistant electric heating sebific duct Download PDFInfo
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- CN204042233U CN204042233U CN201420161233.5U CN201420161233U CN204042233U CN 204042233 U CN204042233 U CN 204042233U CN 201420161233 U CN201420161233 U CN 201420161233U CN 204042233 U CN204042233 U CN 204042233U
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Abstract
High temperature resistant electric heating sebific duct, comprises outer glue-line, framework layer and inner glue layer, and described framework layer is between outer glue-line and inner glue layer; Interior compound protective layer, zone of heating and thermal insulation layer is disposed with from inside to outside between described inner glue layer and framework layer, described interior compound protective layer is the thin layer of cotton thread braiding, described zone of heating is the thin layer be entwined by nichrome wire, and described thermal insulation layer is the thin layer woven by thermal insulating material; Described framework layer, for comprising two-layer steel wire winding layer, is provided with mesoglea between described two-layer steel wire winding layer.Designed by said structure, the high temperature resistant electric heating sebific duct described in the application achieves the technical order of heating, insulation; Meet the requirement of withstand voltage of flexible pipe, meet again the requirement of flexible pipe softness.
Description
Technical field
The utility model belongs to rubber product, is specifically related to a kind of sebific duct, particularly relates to a kind of high temperature resistant electric heating sebific duct.
Background technique
High temperature resistant electric heating flexible pipe is the important equipment of oil field conveying crude oil, is mainly used in supporting the use with oil field tool car.Winter is when recovering the oil, due to crude oil solidifying point high (about 30 DEG C), ambient temperature low (approximately-30 DEG C ~-40 DEG C) and pipeline not heating and thermal insulation, the crude oil often caused solidifies, thus causes the conveying of crude oil not carry out smoothly, causes great loss to production.In addition, sebific duct needs Long-Time Service under the environment of 60 DEG C ~ 80 DEG C, and therefore, glue will have the oil resistance of excellence, the performance of high temperature resistant 150 DEG C.In order to meet this requirement, the following condition of sebific duct demand fulfillment of conveying crude oil: (1) has the function of heating, insulation; (2) there is high temperature resistant, oil resistant, the performance such as withstand voltage, warping strength.But existing sebific duct is difficult to meet above-mentioned requirements simultaneously.
Model utility content
In order to solve the problem existing for existing sebific duct, the utility model provides a kind of high temperature resistant electric heating sebific duct.
The technical solution of the utility model: high temperature resistant electric heating sebific duct, comprises outer glue-line, framework layer and inner glue layer, and described framework layer is between outer glue-line and inner glue layer; Interior compound protective layer, zone of heating and thermal insulation layer is disposed with from inside to outside between described inner glue layer and framework layer, described interior compound protective layer is the thin layer of cotton thread braiding, described zone of heating is the thin layer be entwined by nichrome wire, and described thermal insulation layer is the thin layer woven by thermal insulating material; Described framework layer, for comprising two-layer steel wire winding layer, is provided with mesoglea between described two-layer steel wire winding layer.
Preferably, the thickness of described inner glue layer is 2.5-3.0mm, and the cotton thread of described interior compound protective layer is 32s/2 cotton thread, and the diameter of described nichrome wire is 0.31mm, and described thermal insulating material is glass fibre.
Preferably, the angle of weave of described Steel Wire Braid equals to balance angle, and described balance angle is 55 °.
Wherein, described mesoglea is arranged between two framework layers in sebific duct structure, in order to isolate adjacent bone frame material, to avoid and to cushion sebific duct phase mutual friction under the repeated action under pulsating pressure, improve the fatigue phenomenon of sebific duct, thus reach the object extending sebific duct working life.Meanwhile, by mesoglea, inner glue layer and framework layer etc. are bonded to an entirety, improve compactness and the integrity of sebific duct structure, thus improve the load performance of sebific duct.
(1) formula Design of sizing material:
1. inner glue layer, the formula of described inner glue layer is: by mass fraction, comprises 90-110 part hydrogenated nitrile-butadiene rubber, 5-7 part Active agent, 4.5-6.5 part vulcanzing agent, 0.5-1.5 part promoter, 45-65 part reinforcing agent, 1-2 part plasticizing agent, 2-3 part age resister.
Described inner glue layer is based on hydrogenated nitrile-butadiene rubber 1020, and described hydrogenated nitrile-butadiene rubber is made up of itrile group, methene chain and a small amount of C=C double bond; Wherein saturated methene chain gives the rubber elasticity of hydrogenated nitrile-butadiene rubber excellence, heat resistance, ageing resistance and cryogenic subduing flexibility, and itrile group gives oil resistance; The existence of a small amount of C=C double bond, makes it use sulfur cross-linking.
Described hydrogenated nitrile-butadiene rubber adopts peroxide vulcanizing system, described vulcanzing agent adopts cumyl peroxide, consumption is 3 parts, the assistant crosslinking agent triene-propyl isocyanurate (TAIC) adopted, consumption is 2.5 parts, adopt altax consumption be 1.0 parts, the strength and extension property of sizing material and resistance to high temperature good.Vulcanizing activator adopts zine oxide and stearic acid, and zinc oxide dosage is generally 1.0 ~ 5.0 parts, and stearic consumption is generally 1.0 parts.
Hydrogenated nitrile-butadiene rubber belongs to stretch crystallization type rubber, and itself is powerful high; Carbon black is the main reinforcing agent that hydrogenated nitrile-butadiene rubber uses.Although high wear-resistant carbon black, fast extrusion carbon black are good to the reinforcing effect of hydrogenated nitrile-butadiene rubber, but the mooney viscosity of high wear-resistant carbon black sizing material large, mixing time energy consumption large, the extrusion technique Performance Ratio high wear-resistant carbon black of fast extrusion carbon black is good, so reinforcing agent is selected extrude carbon black soon.
The plasticizing agent that hydrogenated nitrile-butadiene rubber is conventional has phthalate, sebacic acid ester, adipate ester class and tricresyl phosphate etc., is characterized in the elasticity that can increase sizing material, reduces its hardness and reduce compressive strain.When requiring high temperature resistant, selecting tricresyl phosphate better, therefore selecting tricresyl phosphate to be plasticizing agent.
When age resister selected by hydrogenated nitrile-butadiene rubber material, can take alone or and form, general consumption is 1.5 ~ 2.5 parts.At no blooming with when not affecting physical and mechanical properties, consumption can reach 3 ~ 5 parts.Select reaction product of aldehyde and amine RD and mercaptobenzimidazole MB and be used as age resister, improving the heat resistant performance of sizing material.
2. mesoglea, the formula of described mesoglea is: by mass fraction, comprise 90-110 part rubber, 0.5-1.5 part Active agent, 10-12 part vulcanzing agent, 1-2 part promoter, 32-48 part reinforcing agent, 16-24 part plasticizing agent, 2-3 part age resister, 20-30 part tackiness agent, affiliated rubber is that the neoprene A90 of 1:1 and hydrogenated nitrile-butadiene rubber 1020 form by mass ratio.
Described middle glue is with the good neoprene A90 of bond properties and be main body sizing material with the hydrogenated nitrile-butadiene rubber 1020 that resistance to high temperature is good.The double bond of described neoprene molecular chain is connected with chlorine atomic polarity group, gives ageing-resistant performance, firing resistance, oil resistant, solvent resistance and larger tensile strength that neoprene is excellent; Owing to containing chlorine atom in molecule, make the activity decrease at double bond position, be therefore restricted by the method for sulfur cross-linking.Generally adopt metallic oxide as the vulcanizing system of acid acceptor.Neoprene and hydrogenated nitrile-butadiene rubber and rubber vulcanization system adopt metallic oxide and superoxide and use, metal oxide magnesium is generally 4 parts, and zine oxide is 5 parts, cumyl peroxide 2 parts, promoter adopts DM and NA-22 and use, and DM consumption is 1.0 parts, and NA-22 is 0.5 part.
Neoprene belongs to crystallinity rubber, and adhesiveness is good, and its pure glue just has higher tensile strength and bonding strength.Various reinforcing agent carbon black on neoprene and hydrogenated nitrile-butadiene rubber and physical and mechanical properties impact in table 4.Sticky and the performance of high wear-resistant carbon black and fast extrusion carbon black is good, but high wear-resistant carbon black can improve the intensity of blend compounds, but time mixing, energy consumption is large, and the fast carbon black that extrudes has larger elongation percentage to blend compounds, and fast extrusion carbon black can improve the technology capability of sizing material, so reinforcing agent is selected extrude carbon black soon.
Neoprene and hydrogenated nitrile-butadiene rubber and the conventional softening plasticizing agent of sizing material have petroleum oil and aromatic system oily; When requiring high-temperature behavior, need to use ester plasticizer.The bating effect of ester is larger than oil, and the effect of general 4 parts of oil and 3 parts of esters is suitable, but the consumption of ester is too much unsuitable, otherwise can cause roll banding.So, select coumarone indene resin and tricresyl phosphate to make plasticizing agent, improve resistance to high temperature and the bond properties of sizing material.
Although the ageing-resistant performance of neoprene is better, in long-term using process, owing to being heated, the effect of light, oxygen, can oxidation Decomposition gradually, cause physical and mechanical properties to decline; In oxidation decomposition course, also hydrogen cloride can be released, corrosion fabric simultaneously.So the age resister that adapted also will be needed suitable, to improve its ageing-resistant performance further, therefore select p-phenylene diamine derivative class 4010NA and phenylnaphthalene amine D and use.
(2) structural design of sebific duct
The structure of described high temperature resistant electric heating sebific duct is made up of inner glue layer, protective layer, zone of heating, thermal insulation layer, framework layer, mesoglea and enhancement layer.
In in manufacturing process, glue damage, reduces and catches up with glue amount, be provided with interior compound protective layer on the inner glue layer surface of sebific duct.Described interior compound protective layer selects 32s/2 cotton thread as interior compound protective layer material, adopts braiding structure, improves adhesion force, ensures the compactness of sebific duct entirety.
Outside interior compound protective layer, be wound around one deck heating material, this heating material selects the thick nichrome wire of 0.31mm, is wound around after plying by a constant pitch, ensures the heating function of sebific duct.
In order to avoid heat is to external diffusion, reduces heat loss, weave one layer of heat preservation material outside electric heating wire, described thermal insulating material adopts glass fibre, because glass fibre thermal conductivity is little, and high insulating effect.
Consider the present situation of the overall performance of flexible pipe, compressive strength, technological feasibility and Environmental Conditions, the thickness of described inner glue layer is defined as 2-3mm.
Angle of weave is the key of giving sebific duct superperformance, when angle of weave equals balance angle, under interior pressure effect sebific duct can keep length and diameter constant, thus make framework layer material reach optimum efficiency, the angle of weave of described framework layer adopts angle of equilibrium α=55 °.
The enhancement layer of flexible pipe adopts two-layer cotton thread braiding structure, and its compressive strength can reach 7.4MPa, and actual use in the working pressure of sebific duct be 1.0MPa, safety coefficient be 4 flexible pipe bursting pressure be 4.0MPa; Therefore, described high temperature resistant electric heating sebific duct structurally adopts two-layer cotton thread braiding structure, both can meet the requirement of withstand voltage of flexible pipe, meet again the requirement of flexible pipe softness.
The beneficial effects of the utility model:
(1) the high temperature resistant electric heating sebific duct described in the application comprises outer glue-line, framework layer and inner glue layer, is disposed with interior compound protective layer, zone of heating and thermal insulation layer from inside to outside between described inner glue layer and framework layer; Described interior compound protective layer decreases the damage of glue in manufacturing process, ensure that the integrally-built compactness of sebific duct, described zone of heating then by adopting the winding of nichrome wire, achieves the heating function of sebific duct, thermal insulation layer then decreases sebific duct internal heat scattering and disappearing to environment, high insulating effect; Designed by said structure, the high temperature resistant electric heating sebific duct described in the application achieves the technical order of heating, insulation.
(2) framework layer of the high temperature resistant electric heating sebific duct described in the application is the structure of the sandwich mesoglea of two-layer Steel Wire Braid, the angle of weave of described Steel Wire Braid is consistent with the angle of equilibrium, under interior pressure effect sebific duct can keep length and diameter constant, thus make framework layer material reach optimum efficiency; Described mesoglea, in order to isolate adjacent bone frame material, to avoid and to cushion sebific duct phase mutual friction under the repeated action under pulsating pressure, improves the fatigue phenomenon of sebific duct, thus reaches the object extending sebific duct working life; Meanwhile, by mesoglea, inner glue layer and framework layer etc. are bonded to an entirety, improve compactness and the integrity of sebific duct structure, thus improve the load performance of sebific duct.
(3) the outer glue-line of the high temperature resistant electric heating sebific duct described in the application adopts two-layer cotton thread braiding structure, and its compressive strength can reach 7.4MPa, both can meet the requirement of withstand voltage of flexible pipe, meets again the requirement of flexible pipe softness.
(4) the interior glue of the high temperature resistant electric heating sebific duct described in the application and middle glue all have employed best sizing compound formula, based on specially designed sizing compound formula and sebific duct structure, high temperature resistant, oil resistant, withstand voltage, the warping strength premium properties of described high temperature resistant electric heating sebific duct.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment 1:
High temperature resistant electric heating sebific duct, comprises outer glue-line 1, framework layer 2 and inner glue layer 6, and described framework layer 2 is between outer glue-line 1 and inner glue layer 6; Interior compound protective layer 5, zone of heating 4 and thermal insulation layer 3 is disposed with from inside to outside between described inner glue layer 6 and framework layer 2, the thin layer that described interior compound protective layer 5 weaves for cotton thread, described zone of heating 4 is the thin layer be entwined by nichrome wire, and described thermal insulation layer 3 is the thin layer woven by thermal insulating material; Described framework layer 2 is for comprising two-layer Steel Wire Braid, and described angle of weave equals to balance angle, and described balance angle is 55 °.Mesoglea is provided with between described two-layer Steel Wire Braid.The thickness of described inner glue layer 6 is 2.5mm, and the cotton thread that described interior compound protective layer 5 adopts is 32s/2 cotton thread, and the diameter of described nichrome wire is 0.31mm, and described thermal insulating material is glass fibre.
The formula of described inner glue layer is: by mass fraction, comprises 90 parts of hydrogenated nitrile-butadiene rubbers, 6 portions of Active agents, 6.5 parts of vulcanzing agents, 0.5 part of promoter, 50 portions of reinforcing agents, 2 parts of plasticizing agent, 2 parts of age resister.The formula of described mesoglea is: by mass fraction, comprises 45 parts of neoprene A90,45 parts of hydrogenated nitrile-butadiene rubbers, 1020,1 portion of Active agent, 12 parts of vulcanzing agents, 1 part of promoter, 40 portions of reinforcing agents, 24 parts of plasticizing agent, 2 parts of age resister, 25 parts of tackiness agents.
Embodiment 2:
High temperature resistant electric heating sebific duct, comprises outer glue-line 1, framework layer 2 and inner glue layer 6, and described framework layer 2 is between outer glue-line 1 and inner glue layer 6; Interior compound protective layer 5, zone of heating 4 and thermal insulation layer 3 is disposed with from inside to outside between described inner glue layer 6 and framework layer 2, the thin layer that described interior compound protective layer 5 weaves for cotton thread, described zone of heating 4 is the thin layer be entwined by nichrome wire, and described thermal insulation layer 3 is the thin layer woven by thermal insulating material; Described framework layer 2 is for comprising two-layer Steel Wire Braid, and described angle of weave equals to balance angle, and described balance angle is 55 °.Mesoglea is provided with between described two-layer Steel Wire Braid.The thickness of described inner glue layer 6 is 2.8mm, and the cotton thread that described interior compound protective layer 5 adopts is 32s/2 cotton thread, and the diameter of described nichrome wire is 0.31mm, and described thermal insulating material is glass fibre.
The formula of described inner glue layer is: by mass fraction, comprises 50 parts of neoprene A90,50 parts of hydrogenated nitrile-butadiene rubbers, 1020,7 portions of Active agents, 4.5 parts of vulcanzing agents, 1 part of promoter, 65 portions of reinforcing agents, 1 part of plasticizing agent, 2.5 parts of age resister.The formula of described mesoglea is: by mass fraction, comprises 100 parts of rubber, 1.5 portions of Active agents, 10 parts of vulcanzing agents, 1.5 parts of promoter, 48 portions of reinforcing agents, 16 parts of plasticizing agent, 2.5 parts of age resister, 30 parts of tackiness agents.
Embodiment 3:
High temperature resistant electric heating sebific duct, comprises outer glue-line 1, framework layer 2 and inner glue layer 6, and described framework layer 2 is between outer glue-line 1 and inner glue layer 6; Interior compound protective layer 5, zone of heating 4 and thermal insulation layer 3 is disposed with from inside to outside between described inner glue layer 6 and framework layer 2, the thin layer that described interior compound protective layer 5 weaves for cotton thread, described zone of heating 4 is the thin layer be entwined by nichrome wire, and described thermal insulation layer 3 is the thin layer woven by thermal insulating material; Described framework layer 2 is for comprising two-layer Steel Wire Braid, and described angle of weave equals to balance angle, and described balance angle is 55 °.Mesoglea is provided with between described two-layer Steel Wire Braid.The thickness of described inner glue layer 6 is 3.0mm, and the cotton thread that described interior compound protective layer 5 adopts is 32s/2 cotton thread, and the diameter of described nichrome wire is 0.31mm, and described thermal insulating material is glass fibre.
The formula of described inner glue layer is: by mass fraction, comprises 55 parts of neoprene A90,55 parts of hydrogenated nitrile-butadiene rubbers, 1020,5 portions of Active agents, 5.5 parts of vulcanzing agents, 1.5 parts of promoter, 45 portions of reinforcing agents, 1.5 parts of plasticizing agent, 3 parts of age resister.The formula of described mesoglea is: by mass fraction, comprises 110 parts of rubber, 0.5 portion of Active agent, 11 parts of vulcanzing agents, 2 parts of promoter, 32 portions of reinforcing agents, 20 parts of plasticizing agent, 3 parts of age resister, 20 parts of tackiness agents.
Claims (1)
1. high temperature resistant electric heating sebific duct, comprise outer glue-line (1), framework layer (2) and inner glue layer (6), described framework layer (2) is positioned between outer glue-line (1) and inner glue layer (6), it is characterized in that: between described inner glue layer (6) and framework layer (2), be disposed with interior compound protective layer (5) from inside to outside, zone of heating (4) and thermal insulation layer (3), the thin layer that described interior compound protective layer (5) weaves for cotton thread, described zone of heating (4) is the thin layer be entwined by nichrome wire, described thermal insulation layer (3) is the thin layer woven by thermal insulating material, described framework layer (2), for comprising two-layer Steel Wire Braid, is provided with mesoglea between described two-layer Steel Wire Braid, the thickness of described inner glue layer (6) is 2.5-3.0mm, and the cotton thread of described interior compound protective layer (5) is 32s/2 cotton thread, and the diameter of described nichrome wire is 0.31mm, and described thermal insulating material is glass fibre, the angle of weave of described Steel Wire Braid equals to balance angle, and described balance angle is 55 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161233.5U CN204042233U (en) | 2014-04-03 | 2014-04-03 | High temperature resistant electric heating sebific duct |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420161233.5U CN204042233U (en) | 2014-04-03 | 2014-04-03 | High temperature resistant electric heating sebific duct |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043660A (en) * | 2017-12-28 | 2018-05-18 | 安徽益百利环保科技有限公司 | Injecting type hot melt adhesive machine heating trunnion |
| WO2023035461A1 (en) * | 2021-09-08 | 2023-03-16 | 临海伟星新型建材有限公司 | Paraffin-deposition-preventing intelligent pipeline system for oil field |
-
2014
- 2014-04-03 CN CN201420161233.5U patent/CN204042233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043660A (en) * | 2017-12-28 | 2018-05-18 | 安徽益百利环保科技有限公司 | Injecting type hot melt adhesive machine heating trunnion |
| WO2023035461A1 (en) * | 2021-09-08 | 2023-03-16 | 临海伟星新型建材有限公司 | Paraffin-deposition-preventing intelligent pipeline system for oil field |
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| 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: 20141224 Termination date: 20160403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |