CN102658932B - Flexible grease fiber anticorrosion sealing system and application thereof in storage tank margin plate - Google Patents
Flexible grease fiber anticorrosion sealing system and application thereof in storage tank margin plate Download PDFInfo
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- CN102658932B CN102658932B CN2012101497332A CN201210149733A CN102658932B CN 102658932 B CN102658932 B CN 102658932B CN 2012101497332 A CN2012101497332 A CN 2012101497332A CN 201210149733 A CN201210149733 A CN 201210149733A CN 102658932 B CN102658932 B CN 102658932B
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Abstract
The invention relates to application of a flexible grease fiber anticorrosion sealing system to a storage tank margin plate. The system comprises a flexible viscoelastic sealing tape, flexible viscoelastic sealing tape matched primers, flexible grease fiber anticorrosion sealing cement, flexible grease fiber anticorrosion sealing putty and flexible grease fiber anticorrosion sealing oil tapes. The application method comprises the following steps: coating the flexible viscoelastic sealing tape matched primers on the surface of a substrate to form a waterproof layer; coating the flexible viscoelastic sealing tape matched primers and pasting the flexible viscoelastic sealing tape on a tank wall and a margin plate; coating the flexible grease fiber anticorrosion sealing cement; filling the flexible grease fiber anticorrosion sealing putty; and laying two layers of flexible grease fiber anticorrosion sealing oil tapes in sequence. The system has the following beneficial effects: the system has elasticity and plasticity, is not cured and has good sealability and aging and ultraviolet resistance; the following problem is avoided: the tank body has serious problems because the bottom of the tank body and the underground pipe networks are easily corroded due to poor anticorrosion and sealability, so that major accidents are easily caused; and the storage tank life is simultaneously prolonged.
Description
Technical field
The present invention relates to the sealing corrosion protection of the boundary plank of the storage tanks such as oil, gas, chemical industry, fire water in atmosphere and wet environment basis, relate in particular to a kind of flexible oil ester fiber corrosion protection sealing system and in the application of storage tank boundary plank.
Background technology
At present along with domestic PetroChina Company Limited., China Petrochemical Industry, the old petroleum storage tank of CNOOC aging increased and the speeding up the construction of national business large-scale petroleum warehouse, more and more higher for the requirement of the boundary plank water-tight corrosion-proof of tank body itself.Occupy the storage tank boundary plank and belong to special-shaped position, do the water-tight corrosion-proof seal operation very difficult, and be difficult in the market find for effectively waterproof measure herein, the difficult problem of storage tank boundary plank preserving and sealing is perplexing anticorrosion industry always, never has suitable product and solution.The position of being combined with storage tank bottom plate due to the pedestal of storage tank, along with the variation of ambient temperature, radially stretches boundary plank; In addition, because the load change of the defeated reserves of storage tank easily causes the distortion of storage tank, and boundary plank due to the tank body base plate securely solder together can't expand outwardly, result deforms in edge, when the storage tank slack tank, tank body restores to the original state, boundary plank but due to plastic deformation to the upper fin song, like this, also easily seal failure of the conventional leakproofing material at this place.If preserving and sealing is bad, rainwater will enter the gap of storage tank boundary plank and storage tank bottom plate gap and storage tank boundary plank and cement pedestal and cause tank base and underground pipe network heavy corrosion, cause tank body serious problems to occur, so that easily cause a serious accident.And conventional polyurethane leakproofing material and ethylene propylene diene monomer (EPDM) material can not provide seal protection long-term effectively.Therefore, boundary plank structure and the special preserving and sealing special with it requires leakproofing material and construction method are had higher requirement.
Summary of the invention
The problem that the present invention exists in order to solve above-mentioned prior art, develop a kind of flexible oil ester fiber corrosion protection sealing system and especially in the application of storage tank boundary plank.
The technical scheme that the present invention takes is: a kind of flexible oil ester fiber corrosion protection sealing system, it is characterized in that: comprise flexible viscoelastic sealing band, the supporting primer of flexible viscoelastic sealing band, flexible oil ester fiber corrosion protection sealing cement, flexible oil ester fiber corrosion protection sealant and flexible oil ester fiber corrosion protection Seal Oil band, wherein flexible viscoelastic sealing band is the flexible viscoelastic sealant that coating is mixed by pitch: 60%-65%, rubber: 5%-10%, aromatic naphtha: 10%-15% and coarse whiting: 15%-18% on mesh polypropylene-fibre cloth; The supporting primer of flexible viscoelastic sealing band is by toluene: 85%-90%, poly-chloroprene rubber: 3%-7%, phenol resin: 3%-7%, rich fuel-economizing: 0.1%-0.2%, butanone: 1%-2%, magnesium oxide: 0.5%-0.7% and pitch: 2%-5% mixes; Flexible oil ester fiber corrosion protection sealing cement is by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-5%, antimicrobial: 3%-5% and adhesives: 3%-5% mixes; Flexible oil ester fiber corrosion protection sealant steeps grain by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-7%, antimicrobial: 3%-7%, enhancing chopped fiber or polyester: 5%-10% and adhesives: 3%-7% mixes; Flexible oil ester fiber corrosion protection Seal Oil band is to apply the flexible oil ester fiber corrosion protection sealant mixed by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-5%, antimicrobial: 3%-5% and adhesives: 3%-5% on synthetic fiber cloth.
A kind of flexible oil ester fiber corrosion protection sealing system, in the application of storage tank boundary plank, is characterized in that comprising the following steps:
A. evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck at storage tank pedestal platform surface and form waterproof layer; Evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck on tank wall and on the storage tank boundary plank simultaneously;
B. after the supporting primer drying of flexible viscoelastic sealing band, paste flexible viscoelastic sealing band on tank wall and on the storage tank boundary plank;
C. evenly apply one deck flexible oil ester fiber corrosion protection sealing cement on storage tank pedestal platform surface and flexible viscoelastic sealing band;
D. fill transition with flexible oil ester fiber corrosion protection sealant;
E. lay ground floor flexible oil ester fiber corrosion protection Seal Oil band;
F. lay second layer flexible oil ester fiber corrosion protection Seal Oil band.
The beneficial effect that the present invention produces is: native system provides complete long-acting solution for the anticorrosion difficult problem of boundary plank.Native system has elasticity and plasticity, do not solidify, and good airproof performance, antiageing and anti-ultraviolet property are good.Adopt native system can play for a long time water-tight, anti-corrosion protection effect; thereby tank base and underground pipe network heavy corrosion have been avoided easily causing because preserving and sealing is bad; cause tank body serious problems to occur; so that the problem easily caused a serious accident, also improved the storage tank life-span simultaneously.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of flexible oil ester fiber corrosion protection sealing system in the application of storage tank boundary plank.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described: with reference to Fig. 1, flexible oil ester fiber corrosion protection sealing system comprises flexible viscoelastic sealing band 1, the supporting primer 2 of flexible viscoelastic sealing band, flexible oil ester fiber corrosion protection sealing cement 3, flexible oil ester fiber corrosion protection sealant 4 and flexible oil ester fiber corrosion protection Seal Oil band 5, wherein flexible viscoelastic sealing band 1 is coating flexible viscoelastic sealant (asphalt mixture) on mesh polypropylene-fibre cloth, flexible viscoelastic sealant according to percentage by weight by pitch: 62%, rubber: 8%, aromatic naphtha: 13% and coarse whiting: 17% mixes, after mixing according to above raw material proportioning, heating is stirred, heating-up temperature is 120 ℃, asphalt mixture is poured in the container of coating machine, then by hot asphalt mixture by coating machine be coated in mesh polypropylene-fibre cloth above, be stained with antiadhesion barrier below mesh polypropylene-fibre cloth, then by the cooling-gallery of coating machine, make flexible viscoelastic sealing band.Pitch in asphalt mixture and rubber are imported raw material (the pitch trade mark is SK90#, and the rubber trade mark is LG501), and the glue-line cohesive force that pitch and rubber-heating are mixed is strong, seamless, effectively stops the intrusion of corrosive deposit, the antiseptic effect excellence.Because backing is mesh polypropylene-fibre cloth, in apply the process of making by heat, what glue-line was engaged with backing is more firm, difficult drop-off.
The supporting primer 2 of flexible viscoelastic sealing band is by toluene: 86%, poly-chloroprene rubber: 4%, phenol resin: 4%, rich fuel-economizing: 0.16%, butanone: 1.5%, magnesium oxide: 0.64% and pitch: 3.7% mixes; After mixing according to above raw material proportioning, heating is stirred, 120 ℃ of heating-up temperatures.Toluene and pitch (SK90#) mixing energy effectively increases caking ability, and the supporting primer of flexible viscoelastic sealing band can strengthen the cohesiveness of flexible viscoelastic sealing band.
Flexible oil ester fiber corrosion protection sealing cement 3 is by petroleum ointment: 62%, titanium dioxide: 26%, antioxidant: 4%, antimicrobial: 4% and adhesives (heatproof): 4% mixes; After mixing according to above raw material proportioning, heating is stirred, 120 ℃ of heating-up temperatures, and mixing one-tenth partly solidifies ointment shape material.
Flexible oil ester fiber corrosion protection sealant 4 is by petroleum ointment: 58%, titanium dioxide: 24%, antioxidant: 4%, antimicrobial: 4%, strengthen chopped fiber or polyester bubble grain: 6% and adhesives: 4% mixes; After mixing according to above raw material proportioning, heating is stirred, 120 ℃ of heating-up temperatures, the flexible clay shape of mixing one-tenth compound.Strengthen chopped fiber and can increase the hard power of anti-soil and pulling strengrth (using during normal temperature), polyester bubble grain can increase anticorrosion plasticity, cohesion (using during high temperature), flexible oil ester fiber corrosion protection sealant compares with flexible oil ester fiber corrosion protection sealing cement the effect that plastotype and filling are arranged, and flexible oil ester fiber corrosion protection sealing cement just increases cohesive force.
Flexible oil ester fiber corrosion protection Seal Oil band 5 is coating flexible grease fiber corrosion protection sealants on synthetic fiber cloth.Flexible oil ester fiber corrosion protection sealant is by petroleum ointment: 62%, titanium dioxide: 25%, antioxidant: 4.5%, antimicrobial: 4.5 and adhesives: 4% mixes; After mixing in the groove of coating machine according to above raw material proportioning, heating is stirred, 120 ℃ of heating-up temperatures, then synthetic fiber cloth is immersed in the groove of coating machine, flexible oil ester fiber corrosion protection sealant after heating is coated in the two sides of synthetic fiber cloth, finally by the cooling-gallery of coating machine, makes flexible oil ester fiber corrosion protection Seal Oil band.Synthetic fiber cloth is combined and can be made flexible oil ester fiber corrosion protection sealant invade fully in synthetic fiber cloth with flexible oil ester fiber corrosion protection sealant, increases the viscosity of synthetic fiber cloth.
The flexible oil ester fiber corrosion protection sealant that above flexible oil ester fiber corrosion protection sealing cement, flexible oil ester fiber corrosion protection sealant and flexible oil ester fiber corrosion protection Seal Oil band are used, petroleum ointment raw material waterproof effect wherein is strong, mix with titanium dioxide, antioxidant etc. and make product non-sclerous, curing, add in addition the heatproof adhesives that heatproof degree scope is promoted.Heatproof degree scope can reach :-5 ℃ to 90 ℃, than like product heat resisting temperature, will exceed nearly one times.
Flexible oil ester fiber corrosion protection sealing system comprises the following steps in the application of storage tank boundary plank:
A. evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck at storage tank pedestal platform surface, complete covering surfaces, and form certain thickness waterproof layer; Evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck on tank wall 6 and on storage tank boundary plank 7 simultaneously.
First that 8 removing surfaces of storage tank base platform are clean, free from admixture, nothing soil.Then 7 removing surfaces of storage tank boundary plank are clean, remove the floating rust in surface (original paint closely that adheres to does not need to remove).Surface treatment canonical reference St3 rank.When rainy day, high humidity, dust storm are large, can not construct.If storage tank boundary plank 7 alices are serious or storage tank base platform 8 surface irregularities are serious, should carry out in advance the levelling pretreatment, can use other materials (as cement mortar) to fill pretreatment.
B. after the supporting primer drying of flexible viscoelastic sealing band, paste flexible viscoelastic sealing band on tank wall and on the storage tank boundary plank.
On the oil tank wall, 100 millimeters At The Heights start to paste flexible viscoelastic sealing band (width 150mm), after compacting, closely are attached on tank wall, and remainder rides on the storage tank boundary plank, smooth gauffer, with roller, rolls compacting.
C. evenly apply one deck flexible oil ester fiber corrosion protection sealing cement on storage tank pedestal platform surface and flexible viscoelastic sealing band.
Per kilogram flexible oil ester fiber corrosion protection sealing cement brushing 3-5 sq m storage tank pedestal platform surface, this flexible oil ester fiber corrosion protection sealing cement can be not dry.The time gap of brushing flexible oil ester fiber corrosion protection sealing cement and laying flexible oil ester fiber corrosion protection Seal Oil band is no more than 1 hour.
D. fill transition with flexible oil ester fiber corrosion protection sealant.
Fill transition from inner to external application flexible oil ester fiber corrosion protection sealant from tank wall 6 nooks, guarantee smooth surface, smooth; Certain gradient (being greater than 8 degree) from inner outside formation, to avoid producing the water zone.When storage tank boundary plank 7 upwarps serious or storage tank base platform 8 surface irregularity, flexible oil ester fiber corrosion protection sealant consumption will increase.
E. lay ground floor flexible oil ester fiber corrosion protection Seal Oil band.
Use the flexible oil ester fiber corrosion protection Seal Oil band of proper width to lay plane, flexible oil ester fiber corrosion protection Seal Oil band wants crimping to squeeze flat fold.Run into and can not in the time of back bending, can cut off flexible oil ester fiber corrosion protection Seal Oil band, two sections flexible oil ester fiber corrosion protection Seal Oil belt lacings overlap 100 millimeters.The part that flexible oil ester fiber corrosion protection Seal Oil band is holded up is wanted compacting, flattening-out, smooths gauffer, make flexible oil ester fiber corrosion protection Seal Oil band evenly with storage tank pedestal platform surface, the storage tank boundary plank is surperficial and flexible viscoelastic sealing band is sturdy.Flexible oil ester fiber corrosion protection Seal Oil band pastes holding up on the flexible viscoelastic sealing band of tank wall and highly is no more than 50 millimeters, and the height that flexible oil ester fiber corrosion protection Seal Oil band hangs down into pedestal facade part is not less than 50 millimeters.
F. lay second layer flexible oil ester fiber corrosion protection Seal Oil band.
Require to lay second layer flexible oil ester fiber corrosion protection Seal Oil band according to above-mentioned laying.During lower than 10 ℃, before laying second layer flexible oil ester fiber corrosion protection Seal Oil band, apply again one deck flexible oil ester fiber corrosion protection sealing cement (a little) when ambient temperature.Roll flexible oil ester fiber corrosion protection Seal Oil band, make to bond firmly between two sheets of flexible grease fiber corrosion protection Seal Oil band.
Claims (3)
1. a flexible oil ester fiber corrosion protection sealing system, it is characterized in that: comprise flexible viscoelastic sealing band (1), the supporting primer of flexible viscoelastic sealing band (2), flexible oil ester fiber corrosion protection sealing cement (3), flexible oil ester fiber corrosion protection sealant (4) and flexible oil ester fiber corrosion protection Seal Oil band (5), wherein flexible viscoelastic sealing band (1) is the flexible viscoelastic sealant that coating is mixed by pitch: 60%-65%, rubber: 5%-10%, aromatic naphtha: 10%-15% and coarse whiting: 15%-18% on mesh polypropylene-fibre cloth; The flexible supporting primer of viscoelastic sealing band (2) is by toluene: 85%-90%, poly-chloroprene rubber: 3%-7%, phenol resin: 3%-7%, rich fuel-economizing: 0.1%-0.2%, butanone: 1%-2%, magnesium oxide: 0.5%-0.7% and pitch: 2%-5% mixes; Flexible oil ester fiber corrosion protection sealing cement (3) is by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-5%, antimicrobial: 3%-5% and adhesives: 3%-5% mixes; Flexible oil ester fiber corrosion protection sealant (4) steeps grain by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-7%, antimicrobial: 3%-7%, enhancing chopped fiber or polyester: 5%-10% and adhesives: 3%-7% mixes; Flexible oil ester fiber corrosion protection Seal Oil band (5) is to apply the flexible oil ester fiber corrosion protection sealant mixed by petroleum ointment: 55%-65%, titanium dioxide: 20%-30%, antioxidant: 3%-5%, antimicrobial: 3%-5% and adhesives: 3%-5% on synthetic fiber cloth.
2. flexible oil ester fiber corrosion protection sealing system as claimed in claim 1, in the application of storage tank boundary plank, is characterized in that: comprise the following steps:
A. evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck at storage tank pedestal platform surface and form waterproof layer; Evenly apply the supporting primer of the flexible viscoelastic sealing band of one deck on tank wall and on the storage tank boundary plank simultaneously;
B. after the supporting primer drying of flexible viscoelastic sealing band, paste flexible viscoelastic sealing band on tank wall and on the storage tank boundary plank;
C. evenly apply one deck flexible oil ester fiber corrosion protection sealing cement on storage tank pedestal platform surface and flexible viscoelastic sealing band;
D. fill transition with flexible oil ester fiber corrosion protection sealant;
E. lay ground floor flexible oil ester fiber corrosion protection Seal Oil band;
F. lay second layer flexible oil ester fiber corrosion protection Seal Oil band.
3. a kind of flexible oil ester fiber corrosion protection sealing system as claimed in claim 2 is in the application of storage tank boundary plank, it is characterized in that: when ambient temperature, during lower than 10 ℃, before laying second layer flexible oil ester fiber corrosion protection Seal Oil band, apply again one deck flexible oil ester fiber corrosion protection sealing cement.
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| CN2012101497332A CN102658932B (en) | 2012-05-15 | 2012-05-15 | Flexible grease fiber anticorrosion sealing system and application thereof in storage tank margin plate |
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| CN2012101497332A CN102658932B (en) | 2012-05-15 | 2012-05-15 | Flexible grease fiber anticorrosion sealing system and application thereof in storage tank margin plate |
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| CN102658932B true CN102658932B (en) | 2013-12-04 |
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| JP6102154B2 (en) * | 2012-09-28 | 2017-03-29 | 信越化学工業株式会社 | Waterproofing method for outdoor tank |
| US9303380B2 (en) * | 2013-10-18 | 2016-04-05 | Northern Technologies International Corporation | Systems for corrosion protection of storage tank soil side bottoms |
| CN103604006A (en) * | 2013-11-15 | 2014-02-26 | 赵春生 | Outdoor gas leading-in pipe with oily anticorrosive coating and anticorrosive repair construction method |
| CN103670622B (en) * | 2013-12-30 | 2016-01-13 | 斯丹德汽车系统（苏州）有限公司 | A kind of vehicle urea tank cover and vehicle |
| CN104192454B (en) * | 2014-08-15 | 2017-08-04 | 中国石油天然气股份有限公司 | Storage tank edge plate anticorrosion sealing structure and manufacturing method thereof |
| CN104229345B (en) * | 2014-09-01 | 2017-02-15 | 中国石油天然气股份有限公司 | Storage tank edge plate anticorrosion sealing system and manufacturing method thereof |
| CN105067429B (en) * | 2015-07-08 | 2017-12-05 | 中国石油天然气股份有限公司 | Storage tank anticorrosion sealing detection method |
| CN105947453B (en) * | 2015-12-09 | 2018-08-03 | 蓝色海洋（天津）工程技术有限公司 | Oil depot storage tank margin plate anticorrosion structure and its construction method |
| CN105546222A (en) * | 2016-02-26 | 2016-05-04 | 南京大学 | Sealing device for large-depth underwater vehicle cable-penetrating pressure-proof shell |
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| JP2000043987A (en) * | 1998-07-31 | 2000-02-15 | Morimatsu Sogo Kenkyusho:Kk | Tank |
| JP3946477B2 (en) * | 2001-08-28 | 2007-07-18 | 哲郎 宮田 | Precast concrete board joining method |
| EP2188122A1 (en) * | 2007-12-18 | 2010-05-26 | Carrier Corporation | Compressor anti-corrosion protection coating |
| CN101614081B (en) * | 2009-07-13 | 2011-01-19 | 天津开发区科泰化工新材料开发有限公司 | Water-proof and corrosion-proof processing method of bottom margin plate of storage tank |
| CN102212325A (en) * | 2010-04-09 | 2011-10-12 | 航天材料及工艺研究所 | Polyurethane pouring sealant as well as preparation method and pouring process thereof |
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