CN108006370A - A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation - Google Patents
A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation Download PDFInfo
- Publication number
- CN108006370A CN108006370A CN201711311594.8A CN201711311594A CN108006370A CN 108006370 A CN108006370 A CN 108006370A CN 201711311594 A CN201711311594 A CN 201711311594A CN 108006370 A CN108006370 A CN 108006370A
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- CN
- China
- Prior art keywords
- pipelines
- spraying
- insulating layer
- coating
- liquid rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/164—Aluminum halide, e.g. aluminium chloride
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation, include the following steps：（1）Steel tube surface pre-processes；（2）The faults of construction such as weld seam repair sandblasting；（3）Lay insulating layer；（4）Spraying corrosion resistant coating；（5）Repeat spraying 2 to 3 times.Liquid rubber spray-coating material possesses good mechanical property and anti ageing property.Coating can perfect clad substrates, realize coating, the seamless connection between substrate, aliquation, is not peeled off, and is not fallen off, and is played a good protective effect to basic unit, abnormally-structured or base layer construction is easier to be reliable for elbow, interface, valve etc.；And spraying process is easy for construction, moment is molded after efficient, spraying, rapid hardening film forming.Excellent chemical resistance, acidproof, alkali, salt and chlorine, the corrosion-resistant thermal insulation especially suitable for pipelines and petrochemical pipelines.Improve pipeline corrosion protection quality, raising pipeline service life, ensuring safety in production is of great significance.
Description
Technical field
The invention belongs to rubber coating technical field, and in particular to a kind of pipelines and petrochemical pipelines anti-corrosion method.
Background technology
At present in the oil refining industry in China, traditional thermal insulation material, be mostly porosity discrete material, as rock wool,
Mineral wool, perlite, polyurathamc etc., the material water absorption rate is very high, and highest can have data to show once absorbing water more than 200%
For rate more than 40%, heat insulation effect can subject to severe risks of damage., generally again can be in thermal insulation material in order to solve the water absorption issue of the material
The galvanized iron sheet or aluminium skin of piece a diameter of 1-2m of overcoat, the direct result thus brought are that cost significantly rises, and cause to give birth to
Produce with high costs, cause constructional difficulties；This insulation system is not easy to coat at the elbow, interface, valve of pipeline at the same time, makes it
It is exposed in atmosphere, be more subject to corrode.Corrosion not only causes huge economic loss, while brings to safety in production many hidden
Suffer from, equipment corrosion Resolving probiems are bad will to seriously affect normal production.Protected in conclusion studying a kind of pipelines and petrochemical pipelines with anti-corrosion
Temperature, the efficient environmentally friendly material of thin layer are extremely urgent.
The content of the invention
For above-mentioned technical problem existing in the prior art, present invention technical solution used to achieve the above object
It is：A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation, includes the following steps：
（1）Steel tube surface pre-processes：Pre-processed using ball blast assembly line, remove the greasy dirt of steel tube surface, water, iron rust and miscellaneous
Thing；
（2）The faults of construction such as weld seam repair sandblasting；
（3）Lay insulating layer：Using rock wool, mineral wool, perlite and/or polyurathamc be laid in pipeline periphery；
（4）Spraying corrosion resistant coating：Waterproof layer is sprayed using liquid rubber spray-coating material, the twice coating spraying material direction of contact should be mutual
Vertically；When film coated surface is fully cured（It is tack-free）Afterwards, lower road spraying application can just be carried out；
（5）Repeat step（4）2 to 3 times.
Further, the specific component of the liquid rubber spray-coating material is：The liquid rubber spray-coating material is divided into two kinds of A, B
Component；The A components are anion liquid body rubber asphalt emulsion；The B components are coagulant solution；The component A, with matter
Percentage to be measured to represent, liquid rubber asphalt emulsion weight solid content is 50-75%, wherein, rubber latex 1-35%, asphalt emulsion
10-50%, anionic dispersing agents 0.01-2%, anion surfactant 0.01-2%, fatty alcohol polyoxyethylene ether 0.1-
10%, OEP-70 0.1-10%, AEP 0.1-10%, carbon black 0-3%, fine powder material 0-3%, antifreeze auxiliary agent 0.5-3%；The B
Component, is represented with mass percent, the water that the concentration being formulated by calcium chloride, Complex aluminium-iron mixed with polymers is 3-18%
Solution, the Complex aluminium-iron polymer are one or both of aluminium polychloride, bodied ferric sulfate；It is described that there is liquid rubber
The spraying Capacity Ratio of spray paint B component and component A is 1/15-1/3.5.
Compared with prior art, the beneficial effects of the invention are as follows：Liquid rubber spray-coating material possess good mechanical property and
Anti ageing property.The waterproof layer of spraying has very strong adhesion strength, tensile strength, elastic recovery rate and excellent ageing-resistant
Property, elastic film elongation, up to more than 90%, can effectively solve the problem that various stress deformations, expand more than 1000%, recovery rate
Caused by splitting, puncture or connect loosely etc. the problems such as leakage, corrosion；Coating can perfect clad substrates, coating is realized, between substrate
Seamless connection, aliquation, is not peeled off, and is not fallen off, and is played a good protective effect to basic unit, for elbow, interface, valve etc.
Abnormally-structured or base layer construction is easier to be reliable, it can be achieved that " skin-type " anti-corrosion truly；And spraying process is constructed
Moment is molded after convenient, efficient, spraying, rapid hardening film forming.Excellent chemical resistance, acidproof, alkali, salt and chlorine, it is special
Not Shi Yongyu pipelines and petrochemical pipelines corrosion-resistant thermal insulation.Improve pipeline corrosion protection quality, raising pipeline service life, ensuring safety in production has
Significance.
Embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without making creative work, belong to the model that the present invention protects
Enclose.
Embodiment
Liquid rubber spray-coating material is prepared, the liquid rubber spray-coating material is divided into two kinds of components of A, B；The A components are the moon
Ionic liquid rubber asphalt lotion；The B components are coagulant solution；
A component anion liquid body rubber asphalt emulsions add up to 100kg, wherein, (co) polychloroprene rubber lotion 25kg, No. 80 stones
Oil asphalt lotion 30kg, anionic dispersing agents TH -904 are 0.15kg, naphthalenesulfonate formaldehyde condensation compound 0.15kg, CD -4 is
0.15kg, anion surfactant rosin soap 1kg, synthetic fatty acid soap 0.5kg, alkylsulfonate 0.2kg, fatty alcohol polyoxy
Vinethene 2%, OEP-70 3%, AEP 4%；Carbon black 1.5kg, fineness is antifreeze not less than porcelain the powder 0.75kg, CX-01 of 800 mesh to be helped
Agent 0.8kg, water are surplus.B component, is represented with mass percent, is formulated by calcium chloride, Complex aluminium-iron mixed with polymers
Concentration is 3-18% aqueous solution；B components, are represented with mass percent, are answered by 95% calcium chloride, 1.5% sodium chloride, 5%
The aqueous solution that the concentration that ferro-aluminum mixed with polymers is formulated is 10% is closed, Complex aluminium-iron polymer is aluminium polychloride.The liquid
The spraying Capacity Ratio of body rubber spray paint B components and A components is 1/15-1/3.5.
Steel tube surface pre-processes：Pre-processed using ball blast assembly line, remove the greasy dirt of steel tube surface, water, iron rust and miscellaneous
Thing；The faults of construction such as weld seam repair sandblasting.
Lay insulating layer：Using rock wool, mineral wool, perlite and/or polyurathamc be laid in pipeline periphery.
Spraying corrosion resistant coating：Waterproof layer is sprayed using liquid rubber spray-coating material, begins to use liquid rubber spray-coating material spraying anti-
Water layer, prepared A, B component is respectively charged into respective proportion container, under the promotion of dynamical system, A components and
B components are separately operable respective spray gun by two pipelines, and two muzzle slope inwardly during spraying, and spray angle is aligned at the same time
Need the same area face of object basal plane sprayed, the moment that material sprays forms atomization process, before two components to arrival basal plane or arrives
It is sufficiently mixed during up to basal plane, so as to form rubber asphalt film evenly.Two components are being mixed into the friendship up to spray-coating surface
Meeting point distance is 350-600mm, and the twice coating spraying material direction of contact should be orthogonal；When film coated surface is fully cured（No
Viscous hand）Afterwards, lower road spraying application can just be carried out；Repeat spraying 2 to 3 times.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation, it is characterised in that include the following steps：
（1）Steel tube surface pre-processes：Pre-processed using ball blast assembly line, remove the greasy dirt of steel tube surface, water, iron rust and miscellaneous
Thing；
（2）The faults of construction such as weld seam repair sandblasting；
（3）Lay insulating layer：Using rock wool, mineral wool, perlite and/or polyurathamc be laid in pipeline periphery；
（4）Spraying corrosion resistant coating：Waterproof layer is sprayed using liquid rubber spray-coating material, the twice coating spraying material direction of contact should be mutual
Vertically；
（5）Repeat step（4）2 to 3 times.
A kind of 2. pipelines and petrochemical pipelines anticorrosion insulating layer implementation as claimed in claim 1, it is characterised in that the liquid rubber
The specific component of glue spray paint is：The liquid rubber spray-coating material is divided into two kinds of components of A, B；The A components are anion liquid
Rubber asphalt lotion；The B components are coagulant solution；The component A, is represented with mass percent, liquid rubber pitch breast
Liquid weight solid content is 50-75%, wherein, rubber latex 1-35%, asphalt emulsion 10-50%, anionic dispersing agents 0.01-
2%, anion surfactant 0.01-2%, fatty alcohol polyoxyethylene ether 0.1-10%, OEP-70 0.1-10%, AEP
0.1-10%, carbon black 0-3%, fine powder material 0-3%, antifreeze auxiliary agent 0.5-3%；The B component, is represented with mass percent, by
The concentration that calcium chloride, Complex aluminium-iron mixed with polymers are formulated is 3-18% aqueous solution, and the Complex aluminium-iron polymer is
One or both of aluminium polychloride, bodied ferric sulfate；The spraying with liquid rubber spray-coating material B component and component A
Capacity Ratio is 1/15-1/3.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311594.8A CN108006370A (en) | 2017-12-11 | 2017-12-11 | A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311594.8A CN108006370A (en) | 2017-12-11 | 2017-12-11 | A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108006370A true CN108006370A (en) | 2018-05-08 |
Family
ID=62058036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711311594.8A Withdrawn CN108006370A (en) | 2017-12-11 | 2017-12-11 | A kind of pipelines and petrochemical pipelines anticorrosion insulating layer implementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108006370A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025908A (en) * | 2018-08-08 | 2018-12-18 | 中国恩菲工程技术有限公司 | Anti-corrosion drilling shaft lining for salt mine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2180032A (en) * | 1985-09-04 | 1987-03-18 | Skega Ab | Insulated pipe |
| CN2499676Y (en) * | 2001-09-27 | 2002-07-10 | 中国石油天然气集团公司 | Anti-high temperature epoxy orglanic silicone anti-corrosion layer thermal insulatino pipe |
| CN2536875Y (en) * | 2002-04-24 | 2003-02-19 | 大庆油田建材制造安装有限责任公司 | Polyurethane corrosionproof thermal insulating pipeline |
| CN102329566A (en) * | 2011-07-13 | 2012-01-25 | 大连美宸特科技有限公司 | High-permeability liquid rubber spray coating |
| CN102965015A (en) * | 2012-11-30 | 2013-03-13 | 山东北方创信防水技术有限公司 | Anticorrosion type spraying quick-setting rubber asphalt waterproof coating |
-
2017
- 2017-12-11 CN CN201711311594.8A patent/CN108006370A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2180032A (en) * | 1985-09-04 | 1987-03-18 | Skega Ab | Insulated pipe |
| CN2499676Y (en) * | 2001-09-27 | 2002-07-10 | 中国石油天然气集团公司 | Anti-high temperature epoxy orglanic silicone anti-corrosion layer thermal insulatino pipe |
| CN2536875Y (en) * | 2002-04-24 | 2003-02-19 | 大庆油田建材制造安装有限责任公司 | Polyurethane corrosionproof thermal insulating pipeline |
| CN102329566A (en) * | 2011-07-13 | 2012-01-25 | 大连美宸特科技有限公司 | High-permeability liquid rubber spray coating |
| CN102965015A (en) * | 2012-11-30 | 2013-03-13 | 山东北方创信防水技术有限公司 | Anticorrosion type spraying quick-setting rubber asphalt waterproof coating |
Non-Patent Citations (1)
| Title |
|---|
| 李联友: "《建筑设备安装工程施工技术手册》", 31 January 2007 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025908A (en) * | 2018-08-08 | 2018-12-18 | 中国恩菲工程技术有限公司 | Anti-corrosion drilling shaft lining for salt mine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180508 |