CN105318139A

CN105318139A - Petroleum transportation pipeline

Info

Publication number: CN105318139A
Application number: CN201510857863.5A
Authority: CN
Inventors: 李燕
Original assignee: Chengdu Jiushidu Industrial Product Design Co Ltd
Current assignee: Jiangsu Shen view pipeline Limited by Share Ltd
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2016-02-10
Anticipated expiration: 2035-11-30
Also published as: CN105318139B

Abstract

The invention discloses a petroleum transportation pipeline. The petroleum transportation pipeline comprises a pipe body, wherein an anti-static layer is arranged on the inner wall of the pipe body, and a heat insulation layer is arranged on the outer wall of the pipe body; a buffer layer is arranged on the outer wall of the heat insulation layer; a plurality of joints are arranged on the pipe body; dredge pipes connected with a gas source are arranged outside the pipe body in parallel; a purging pipe communicated with each joint is arranged on the corresponding dredge pipe; and a purging valve is arranged on each purging pipe. According to the invention, the problem of blockage of powdery materials in pipeline transportation is solved, high-pressure purging wind can be charged to purge in the case that the pipeline is blocked through arranging the dredge pipes in parallel, and the petroleum pipeline is simple in structure, and simple, convenient and fast to operate; and meanwhile, the problem of pipeline blockage due to cold is further solved through arranging the heat insulation layer. In addition, an anti-static coating is specially prepared, so that the petroleum pipeline has an excellent anti-static capacity without the need of grounding; and the petroleum pipeline is high in anti-static capacity, high in petroleum corrosion-resistant effect, and capable of being protected from static trouble for a long time.

Description

A kind of petroleum transportation pipeline

Technical field

The present invention relates to oil equipment field, particularly a kind of petroleum transportation pipeline.

Background technique

Oil is in oil recovery process, petroleum transportation pipeline will inevitably be used, existing petroleum transportation pipeline also exists following defect: one is because oil paraffin content is too high, carry oil concentration large, often cause oil transport pipeline oil transportation difficulty, especially in cold season, heating on petroleum pipeline is needed to solve the problem of oil transportation difficulty; Two is that oil is in transportation process, occasional due to the impurity in oil and oil itself viscosity and there is line clogging, once pipeline blocks, will cause cannot normal transfer oil, need to carry out artificial dredging, if pipeline is shorter comparatively thick, more easily dredge, if pipeline longer comparatively detailed rules and regulations dredging process becomes very difficult, be unfavorable for need of production; Existing petroleum pipeline is all eliminate electrostatic hazard by ground connection, but at some physical features height, very uneven or pipeline construction is overhead high, adopt earthing method can increase pipe-line construction difficulty and construction cost if also continue, and the effect that destatics that it brings neither be very desirable.

Summary of the invention

Goal of the invention of the present invention is: for above-mentioned Problems existing, provides a kind of petroleum transportation pipeline, solves the problem of the blocking of Cemented filling granular material, by the dredging pipe that is arranged in parallel, can pass into high-pressure blowing wind to purge when line clogging, structure is simple, simple and efficient to handle; Also solve by arranging one deck heat insulation layer the problem causing line clogging because of cold further simultaneously.In addition, special a kind of anti-static coatings, make petroleum pipeline just can possess excellent anti-static ability without ground connection, its anti-static ability is strong, and anti-corrosion by petroleum is effective, can not perplex by electrostatic by digital preservation petroleum pipeline.

The technical solution used in the present invention is as follows: a kind of petroleum transportation pipeline, comprise body, the inwall of described body is provided with one deck antistatic backing, outer wall is provided with one deck heat insulation layer, the outer wall of described heat insulation layer is provided with one deck buffer layer, and body is provided with some joints, is arranged in parallel and connects the dredging pipe of source of the gas outside body, dredging pipe is provided with the scavenging conduit with fittings, and described scavenging conduit is provided with blow down valve.

Due to the setting of said structure, antistatic backing is set at the inwall of body and effectively can solves the problem that petroleum pipeline destatics; Tube wall arrange heat insulation layer on the one hand can protective conduit by the impact of cold snap, make oil transportation unimpeded, petroleum pipeline can be protected to exempt from high temperature on the other hand and scorch, strengthen safety reliability during petroleum transportation further; Weatherability and the intensity that one deck buffer layer mainly considers ceramic fiber itself is set at heat insulation layer outer wall, protects ceramic fiber to exempt from outside destroy by buffer layer, improve the life cycle of ceramic fiber; By the dredging pipe that is arranged in parallel, when line clogging, high-pressure blowing wind can be passed in dredging pipe, enter into joint through scavenging conduit, thus purge in conveyance conduit, thus solve the problem of blocking.

Further, the thickness of described heat insulation layer is 1-3mm, is made up of ceramic fiber, and the even seamless unoccupied place of described ceramic fiber wraps described body.

Further, the thickness of described buffer layer is 200-500 μm, is made up of rubber coating, and the even seamless unoccupied place of described rubber coating is coated on described heat insulation layer.

Further, described dredging pipe is provided with the scavenging conduit identical with joint number, on dredging pipe arbitrary neighborhood scavenging conduit between be provided with dredge valve.

Further, described scavenging conduit is arranged relative to the centerline dip of body, and angle of inclination is 30 °-45 °.

Further, described blow down valve and dredge valve all adopt solenoid valve, and described body is furnished with some flow monitoring instruments, and described flow monitoring instrument, solenoid valve signal connect and be controlled by PLC.

Further, the thickness of described antistatic backing is 150-300 μm, be made up of special anti-static coatings, described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 11-20%, titanium dioxide 5-10%, epoxy resin 11-20%, conductive zinc oxide 10-16%, superfine alumina silicate 5-7%, auxiliary agent 3-7% and pigment 5-10%, surplus is water and inevitable impurity.

Further, described pigment is composed of the following components by mass percentage: French chalk 0.5-1%, mica flour 1-2%, bentonite clay 1.5-3%, nm TiO 2-base composite particles 0.5-1%, sial base cenosphere 1.5-3%, thinner 0.5-1.0%, dispersing agent 0.5-1.0%, defoamer 0.5-1.0%, levelling agent 0.5-1.0%, curing agent 1-3%.

Further, described dispersing agent is Tissuemat E, and described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, and described thinner is epoxy active diluent, and levelling agent is Organo-modified siloxane, and described curing agent is modified dicyandiamine and sebacic dihydrazide.

Further, the preparation process of described special anti-static coatings comprises following step:

Step 1, conductive zinc oxide, superfine alumina silicate, pigment, defoamer, thinner and appropriate water are proportionally carried out grinding distribution, then be placed in homogenizer and stir 15-20min, mixing speed is 1000r/min, each component is stirred, obtains component A;

Step 2, epoxy terminated modified polyurethane resin, epoxy resin are placed in edge mill and pulverize, then the resin after pulverizing is put into stirrer, and makes it pulverize, obtain toner, stirred 15-20min, obtained B component;

Step 3, component A, B component and residue auxiliary agent are placed in homogenizer, stir 20-30min, mixing speed 1000r/min, obtain component C;

Step 4, the component C obtained is added grinding machine for grinding 2-3h, then cross 500 object strainer filterings, namely obtain special anti-static coatings.

In anti-static coatings of the present invention, the French chalk of interpolation, mica flour and bentonite clay, the consumption of minimizing resin that can be relative, reduces costs, and also can improve the mechanical property of coating simultaneously, increases Young's modulus, reduces cure shrinkage, the surface energy nanoscale effect that nm TiO 2-base composite particles has, more easily be dispersed in coating, reduce the phenomenon of reunion, anti-static coatings is made to have good abrasion resistance, pliability, in the coating, the adhesion of coating, water proofing property, pliability and leveling performance also can be made to be enhanced, its inside of sial base cenosphere is in small porous hollow structure, surface forms hard shell by the hollow reticular structure of fiber, compressive strength is 4000-7000kg/cm2, thermal conductivity is 0.07-0.12W/(mK), have ultra-fine, flow, porous, lubrication, easy filling, fire-retardant, the feature such as heat insulation and anticorrosion, it is a kind of extender pigment of multi-functional low cost, in anti-static coatings, along with the increase of sial base cenosphere consumption, the corresponding minimizing of thermal conductivity of coating, thermal resistance improves, thermal and insulating performance is better, anti-static coatings is made not only to have electrostatic-proof function, also there is certain heat-insulating capability, superfine alumina silicate significantly can not only reduce the cost of production of anti-static coatings, can also improve dispersiveness and the fineness index of coating, makes coating appearance, glossiness, Richness, hardness and dispersiveness have good effect.

In the auxiliary agent used, the Organo-modified siloxane of levelling agent can impel anti-static coatings in drying and forming-film process, form smooth, smooth, a uniform film, reduce the surface tension between coating and base material, coating and base material is made to have best wettability, the evaporation rate of adjustment solvent, reduce viscosity, improve the mobility of coating.

In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: the problem solving the blocking of Cemented filling granular material, by the dredging pipe that is arranged in parallel, can pass into high-pressure blowing wind to purge when line clogging, structure is simple, simple and efficient to handle; Also solve by arranging one deck heat insulation layer the problem causing line clogging because of cold further simultaneously.In addition, special a kind of anti-static coatings, make petroleum pipeline just can possess excellent anti-static ability without ground connection, its anti-static ability is strong, and anti-corrosion by petroleum is effective, can not perplex by electrostatic by digital preservation petroleum pipeline.

Accompanying drawing explanation

Fig. 1 is a kind of petroleum pipeline structural representation of the present invention.

Fig. 2 is petroleum pipeline cross-sectional view of the present invention.

Mark in figure: 1 is body, and 2 is antistatic backing, and 3 is heat insulation layer, and 4 is buffer layer, and 5 is joint, and 6 is dredging pipe, and 7 is scavenging conduit, and 8 is blow down valve, and 9 is dredge valve.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in detail.

In order to make the object of invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

embodiment one

As shown in Figure 1, a kind of petroleum transportation pipeline, comprise body 1, the inwall of described body 1 is provided with one deck antistatic backing 2, outer wall is provided with one deck heat insulation layer 3, the outer wall of described heat insulation layer 3 is provided with one deck buffer layer 4, body 1 is provided with some joints 5, be arranged in parallel outside body 1 and connect the dredging pipe 6 of source of the gas, dredging pipe 6 is provided with the scavenging conduit 7 be communicated with joint 5, described scavenging conduit 7 is provided with blow down valve 8, the thickness of described heat insulation layer 3 is 1-3mm(optimum thickness is 2mm, 1mm or 3mm can certainly be selected), be made up of ceramic fiber, the even seamless unoccupied place of described ceramic fiber wraps described body 1, the thickness of described buffer layer 4 is 200-500 μm, and (optimum thickness is 300 μm, 200 μm or 500 μm can certainly be selected), be made up of rubber coating, the even seamless unoccupied place of described rubber coating is coated on described heat insulation layer 3, described dredging pipe 6 is provided with the scavenging conduit 7 identical with joint 5 number, on dredging pipe 6 arbitrary neighborhood scavenging conduit 7 between be provided with dredge valve 9, described scavenging conduit 7 is arranged relative to the centerline dip of body 1, angle of inclination is 30 °-45 °, described blow down valve 8 and dredge valve 9 all adopt solenoid valve, described body 1 is furnished with some flow monitoring instruments, described flow monitoring instrument, solenoid valve signal connects and is controlled by PLC.

Except above-mentioned fixed structure, petroleum pipeline of the present invention is monitored by the flow of flow monitoring instrument to fluids within pipes, and in PLC, carry out contrast judgement, then the solenoid valve unlatching correspondingly controlling para postion purges.

In the present embodiment, the thickness of described antistatic backing is 150-300 μm, and (optimum thickness is 250 μm, according to stone oil properties feature, also 150 μm or 300 μm can be selected), be made up of special anti-static coatings, described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 15%, titanium dioxide 8%, epoxy resin 18%, conductive zinc oxide 13%, superfine alumina silicate 6%, thinner 0.8%, dispersing agent 0.8%, defoamer 0.8%, levelling agent 0.8%, curing agent 1.5%, French chalk 0.7%, mica flour 1.3%, bentonite clay 2.5%, nm TiO 2-base composite particles 0.7%, sial base cenosphere 2.5%, surplus is water and inevitable impurity, described dispersing agent is Tissuemat E, and described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, and described thinner is epoxy active diluent, and levelling agent is Organo-modified siloxane, and described curing agent is modified dicyandiamine and sebacic dihydrazide.

In the present embodiment, the preparation process of described special anti-static coatings comprises following step:

embodiment two

This embodiment is identical with embodiment one, its difference is, described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 13%, titanium dioxide 6%, epoxy resin 17%, conductive zinc oxide 13%, superfine alumina silicate 6.5%, auxiliary agent 4.4% and pigment 6.1%, surplus is water and inevitable impurity, described pigment is composed of the following components by mass percentage: French chalk 0.7%, mica flour 0.7%, bentonite clay 1.8%, nm TiO 2-base composite particles 0.6%, sial base cenosphere 2.3%, described auxiliary agent is composed of the following components by mass percentage: thinner 0.6%, dispersing agent 0.6%, defoamer 0.6%, levelling agent 0.6%, curing agent 2%, described dispersing agent is Tissuemat E, described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, described thinner is epoxy active diluent, levelling agent is Organo-modified siloxane, described curing agent is modified dicyandiamine and sebacic dihydrazide.

Step 1, conductive zinc oxide, superfine alumina silicate, pigment, defoamer, thinner and appropriate water are proportionally carried out grinding distribution, then be placed in homogenizer and stir 18min, mixing speed is 1000r/min, each component is stirred, obtains component A;

Step 2, epoxy terminated modified polyurethane resin, epoxy resin are placed in edge mill and pulverize, then the resin after pulverizing is put into stirrer, and makes it pulverize, obtain toner, stirred 17min, obtained B component;

Step 3, component A, B component and residue auxiliary agent are placed in homogenizer, stir 25min, mixing speed 1000r/min, obtain component C;

Step 4, the component C obtained is added grinding machine for grinding 2.5h, then cross 500 object strainer filterings, namely obtain special anti-static coatings.

embodiment three

This embodiment is identical with embodiment two with embodiment one, its difference is, described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 11%, titanium dioxide 5%, epoxy resin 11%, conductive zinc oxide 10%, superfine alumina silicate 5%, auxiliary agent 3% and pigment 5%, surplus is water and inevitable impurity, described pigment is composed of the following components by mass percentage: French chalk 0.5%, mica flour 1%, bentonite clay 1.5%, nm TiO 2-base composite particles 0.5%, sial base cenosphere 1.5%, described auxiliary agent is composed of the following components by mass percentage: thinner 0.5%, dispersing agent 0.5%, defoamer 0.5%, levelling agent 0.5%, curing agent 1%, described dispersing agent is Tissuemat E, described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, described thinner is epoxy active diluent, levelling agent is Organo-modified siloxane, described curing agent is modified dicyandiamine and sebacic dihydrazide.

Step 1, conductive zinc oxide, superfine alumina silicate, pigment, defoamer, thinner and appropriate water are proportionally carried out grinding distribution, then be placed in homogenizer and stir 15min, mixing speed is 1000r/min, each component is stirred, obtains component A;

Step 2, epoxy terminated modified polyurethane resin, epoxy resin are placed in edge mill and pulverize, then the resin after pulverizing is put into stirrer, and makes it pulverize, obtain toner, stirred 15min, obtained B component;

Step 3, component A, B component and residue auxiliary agent are placed in homogenizer, stir 20min, mixing speed 1000r/min, obtain component C;

Step 4, the component C obtained is added grinding machine for grinding 2h, then cross 500 object strainer filterings, namely obtain special anti-static coatings.

embodiment four

This embodiment and embodiment one, embodiment two are identical with embodiment three, its difference is, described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 20%, titanium dioxide 10%, epoxy resin 20%, conductive zinc oxide 16%, superfine alumina silicate 7%, auxiliary agent 7% and pigment 10%, surplus is water and inevitable impurity, described pigment is composed of the following components by mass percentage: French chalk 1%, mica flour 2%, bentonite clay 3%, nm TiO 2-base composite particles 1%, sial base cenosphere 3%, described auxiliary agent is composed of the following components by mass percentage: thinner 1.0%, dispersing agent 1.0%, defoamer 1.0%, levelling agent 1.0%, curing agent 3%, described dispersing agent is Tissuemat E, described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, described thinner is epoxy active diluent, levelling agent is Organo-modified siloxane, described curing agent is modified dicyandiamine and sebacic dihydrazide.

Step 1, conductive zinc oxide, superfine alumina silicate, pigment, defoamer, thinner and appropriate water are proportionally carried out grinding distribution, then be placed in homogenizer and stir 20min, mixing speed is 1000r/min, each component is stirred, obtains component A;

Step 2, epoxy terminated modified polyurethane resin, epoxy resin are placed in edge mill and pulverize, then the resin after pulverizing is put into stirrer, and makes it pulverize, obtain toner, stirred 20min, obtained B component;

Step 3, component A, B component and residue auxiliary agent are placed in homogenizer, stir 30min, mixing speed 1000r/min, obtain component C;

Step 4, the component C obtained is added grinding machine for grinding 3h, then cross 500 object strainer filterings, namely obtain special anti-static coatings.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. a petroleum transportation pipeline, comprise body (1), it is characterized in that, the inwall of described body (1) is provided with one deck antistatic backing (2), and outer wall is provided with one deck heat insulation layer (3), and the outer wall of described heat insulation layer (3) is provided with one deck buffer layer (4), body is provided with some joints (5), be arranged in parallel outside body (1) and connect the dredging pipe (6) of source of the gas, dredging pipe (6) is provided with and the scavenging conduit of fittings (7), and described scavenging conduit (7) is provided with blow down valve (8).

2. petroleum transportation pipeline as claimed in claim 1, it is characterized in that, the thickness of described heat insulation layer (3) is 1-3mm, is made up of ceramic fiber, and the even seamless unoccupied place of described ceramic fiber wraps described body (1).

3. petroleum transportation pipeline as claimed in claim 2, it is characterized in that, the thickness of described buffer layer (4) is 200-500 μm, is made up of rubber coating, and the even seamless unoccupied place of described rubber coating is coated on described heat insulation layer (3).

4. petroleum transportation pipeline as claimed in claim 3, it is characterized in that, described dredging pipe (6) is provided with the scavenging conduit (7) identical with joint (5) number, between the scavenging conduit (7) of the upper arbitrary neighborhood of dredging pipe (6), be provided with dredge valve (9).

5. petroleum transportation pipeline as claimed in claim 4, it is characterized in that, described scavenging conduit (7) is arranged relative to the centerline dip of body (1), and angle of inclination is 30 °-45 °.

6. the petroleum transportation pipeline as described in one of claim 1-5, it is characterized in that, described blow down valve (7) and dredge valve (9) all adopt solenoid valve, and (1) is furnished with some flow monitoring instruments to described body, and described flow monitoring instrument, solenoid valve signal connect and be controlled by PLC.

7. petroleum transportation pipeline as claimed in claim 6, it is characterized in that, the thickness of described antistatic backing (2) is 150-300 μm, is made up of special anti-static coatings, and described special anti-static coatings is made up of the raw material of following mass percent: epoxy terminated modified polyurethane resin 11-20%, titanium dioxide 5-10%, epoxy resin 11-20%, conductive zinc oxide 10-16%, superfine alumina silicate 5-7%, auxiliary agent 3-7% and pigment 5-10%, surplus is water and inevitable impurity.

8. petroleum transportation pipeline as claimed in claim 7, it is characterized in that, described pigment is composed of the following components by mass percentage: French chalk 0.5-1%, mica flour 1-2%, bentonite clay 1.5-3%, nm TiO 2-base composite particles 0.5-1%, sial base cenosphere 1.5-3%, thinner 0.5-1.0%, dispersing agent 0.5-1.0%, defoamer 0.5-1.0%, levelling agent 0.5-1.0%, curing agent 1-3%.

9. petroleum transportation pipeline as claimed in claim 8, it is characterized in that, described dispersing agent is Tissuemat E, described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, described thinner is epoxy active diluent, levelling agent is Organo-modified siloxane, and described curing agent is modified dicyandiamine and sebacic dihydrazide.

10. petroleum transportation pipeline as claimed in claim 9, it is characterized in that, the preparation process of described special anti-static coatings comprises following step: