CN102107929B - Method for repairing liner rubber of air-cooling condensation water fine treatment system - Google Patents

Method for repairing liner rubber of air-cooling condensation water fine treatment system Download PDF

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Publication number
CN102107929B
CN102107929B CN200910243259A CN200910243259A CN102107929B CN 102107929 B CN102107929 B CN 102107929B CN 200910243259 A CN200910243259 A CN 200910243259A CN 200910243259 A CN200910243259 A CN 200910243259A CN 102107929 B CN102107929 B CN 102107929B
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repairing
construction
rubber
line
mending
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CN200910243259A
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CN102107929A (en
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于洪忠
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China Shenhua Energy Co Ltd
Beijing Guohua Electric Power Co Ltd
Shaanxi Guohua Jinjie Energy Co Ltd
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China Shenhua Energy Co Ltd
Beijing Guohua Electric Power Co Ltd
Shaanxi Guohua Jinjie Energy Co Ltd
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Priority to CN200910243259A priority Critical patent/CN102107929B/en
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Abstract

The invention relates to a method for repairing liner rubber of an air-cooling condensation water fine treatment system, which comprises the following steps: a. burr descaling for repairing the substrate surface; b. paint construction; and c. coating maintenance. Due to the adoption of novel anticorrosive material-high temperature metal ceramics (HTX ceramics), the invention does not use the traditional repairing process using liner rubber and resin, thereby solving the technical problem that no proper repairing materials are available when the traditional technique is adopted on site, and keeping the equipment to stably operate for a long time. The allowable working temperature and pressure in the invention are far higher than the working conditions of the condensation water fine treatment, the high temperature metal ceramics have strong adhesive force with the liner rubber and steel substrate, and have certain toughness. When being used for on-site construction, the invention is feasible, has the advantages of high operability and simple technique, and can satisfy the requirements for the on-site construction by simply adopting the existing tool set equipment.

Description

A kind of line with rubber method for repairing and mending of air cooling condensed water precision processing system
Technical field
The present invention relates to a kind of line with rubber method for repairing and mending, particularly relate to a kind of line with rubber method for repairing and mending of air cooling condensed water precision processing system, more specifically say, relate to the method for repairing and mending of the inner line with rubber preservative coat of a kind of air cooling condensed water precision processing system high speed negative and positive bed.
Background technology
Existing air cooling condensed water accurate process equipment adopts line with rubber anticorrosion more, and water temperature high (74 ℃), WP high (4.0MPa).When the anticorrosion damage of equipment,, then be difficult to reach intensity and use the working conditions requirement if adopt common water treating equipment line with rubber repair materials and repair technology.
Existing line with rubber maintenance technology has repairing of self-vulcanizing offset plate and the repairing of epoxy resin mixing silica sand etc.Wherein, the permissible working pressure 0.6MPa of self-vulcanizing offset plate, 60 ℃ of working temperatures are well below the operation condition of Air-cooled Unit.
And epoxy resin mixing silica sand technology hardness is higher, but have the more crisp not impact-resistant shortcoming of quality, also is not suitable for precision processing halfload operating mode and leaves the bed that body bottom current are inhomogeneous to have a ballistic operating mode.
Summary of the invention
The objective of the invention is to, overcome the defective of above-mentioned prior art and provide a kind of allow working temperature and pressure be higher than condensed water precision processing operating mode far away, all very strong and certain toughness and line with rubber method for repairing and mending workable, the simple air cooling condensed water precision processing system of technology arranged with the sticking power of line with rubber and steel matrix.
For realizing above-mentioned purpose, the utility model is taked following plan:
A kind of line with rubber method for repairing and mending of air cooling condensed water precision processing system, said line with rubber method for repairing and mending may further comprise the steps:
A, the scared step of rust cleaning of repairing matrix surface: the scared step of rust cleaning of repairing matrix surface: remove the line with rubber layer that flange surface is damaged earlier; To need the excessively inside cleaning of part 20-30mm of circular arc then; It is scared to use iron sand to carry out derusting by sandblast after cleaning out, and removes surface dirt and foreign material again;
B, coating application step: carry out the first road coating construction in back 4 hours up to standard in the processing of the scared step of rust cleaning; According to volume ratio 2~5: 1 is partially mixed on the condiment plate with base-material and auxiliary material; Stir, use the scraper plate material loading then, the running time was controlled in 20~30 minutes; Use roasting lamp that construction surface is toasted after construction finishes, roasting lamp is apart from construction surface 1m, and the construction surface temperature must not be lower than 20 ℃ in the bake process; Preferably, said base-material comprises the hot metal pottery HTX in the Suo Tai series product, and said auxiliary material is a solidifying agent;
The maintenance step of c, coating: in greater than 20 ℃ environment, spontaneous curing 3 days; With the irregular part of the simple repairing of instrument.
Preferably, in said coating application step, the about 0.8~1.2mm of thickness of each road scraper plate material loading.
Further preferably, before the scared step of the rust cleaning of said repairing matrix surface, also comprise the pre-treatment step of repairing environment:
Envrionment temperature during construction should be between 18-25 ℃, and relative humidity should be lower than 90%, and the surface of equipment matrix keeps dry, and remove the greasy dirt and the flue gas of environment.
Preferably, after the maintenance step of said coating, also comprise the quality test step of coating construction, said quality test step comprises:
Visual testing: even, smooth, bright and clean, the no foaming of paint film, no sag, no holiday, no show-through, do not have be full of cracks, do not have the spray of doing and no-sundries;
The electrical spark check: 12kV voltage is no leaky down.
Advantage of the present invention is: because the present invention has adopted novel impregnating material---hot metal pottery (HTX pottery); Jumped out the circle that traditional employing line with rubber is repaired and resin is repaired; Having solved the field by using traditional technology does not thus have the technological problems of suitable patching material, and can keep equipment operation steady in a long-term.Working temperature and pressure that the present invention allows all are higher than condensed water precision processing operating mode far away, and is all very strong with the sticking power of line with rubber, steel matrix, and certain toughness is arranged.Site operation has feasibility, and is workable, and technology is simple, adopts existing tooling device promptly can satisfy construction requirement in the scene.
Embodiment
The repairing impregnating material that the preferred embodiments of the present invention adopt is the hot metal pottery HTX (Cerami-Tech HTX) in the Britain Suo Tai of the Yi Wude company series product; This product has heat-resisting ability preferably, is suitable for the long-term fluid device that under hot environment, moves, like water tank; Pump; Interchanger, storage tank, reaction kettle etc.The method for repairing and mending of present embodiment comprises:
1. preferably, the processing condition in the time of at first should noting repairing, the pre-treatment of promptly repairing environment: the envrionment temperature during construction should be between 18-25 ℃, and relative humidity should be lower than 90%.The surface of equipment matrix should be not moist.Environment does not have greasy dirt and flue gas.
2. repair the scared treatment step of rust cleaning of matrix surface: use iron sand that matrix surface is carried out sandblast; Remove the impaired line with rubber layer of manhole flange surface, and will take over flange and be connected the arc transition place and inwardly clear up 20-30mm, line with rubber flange and manhole pipe excessive place partly is a fillet; Rounding off when guaranteeing line with rubber; Need extend to the straight flange direction from fillet,, eliminate transition position and have overlapped points and cause the problem that line with rubber preservative coat pull-up falls to guarantee to repair the seamless link of pottery.Use the metallic surface after special oily soil cleaning agent is handled sandblast.In order to guarantee that coating has enough strong bonding force on the steelwork surface; The steelwork surface should reach Sa2.5 level (ISO 8501-1:1998) or SSPC-SP6 handles standard; Be not less than the ST3 level; Metal sheet surface roughness after the processing must reach 40-75um, and metal sheet can be existing various sheet metals such as steel plate, copper coin.After derusting by sandblast reaches standard, remove surface dirt and foreign material with the pressurized air of clean cleaning or the brush of cleaning, coated surface must clean, drying.The first road coating must be carried out in back 4 hours up to standard in surface treatment, like surface of steel plate generation oxidation, then need carry out the requirement of surface treatment to standard again.
3. coating application step and technology precaution:
3.1 at first that material and service tool is in place, spot lighting is opened with working light.
3.2 according to volume ratio 2~5: 1, preferably, with base-material with additive partially mixed on condiment plate firmly stir then use scraper plate material loading at 3: 1.
3.3 about 0.8~1.2mm is thick together.Follow a small amount of principle repeatedly, the running time was controlled in 20 minutes.
3.4 the attention speed of application, the zone engineering time was controlled in 30 minutes, prevented that material monolithic from solidifying.
3.5 note smooth, if surperficial defectiveness should be anticipated.
The back uses roasting lamp that construction surface is toasted 3.6 construction finishes, and roasting lamp is apart from construction surface 1m..The construction surface temperature must not be lower than 20 ℃ in the bake process.
4. the maintenance step of coating
4.1 in greater than 20 ℃ environment, spontaneous curing 3 days.
4.2 with the irregular place of the simple repairing of instruments such as file.
5. preferably, also comprise the check of coating construction quality
Visual testing: all sites must reach even, smooth, bright and clean, the no foaming of paint film, no sag, no holiday, no show-through, do not have be full of cracks, do not have the spray of doing and no-sundries etc.Electrical spark check 12kV voltage is no leaky down.
Obviously, those of ordinary skill in the art can use the line with rubber method for repairing and mending of a kind of air cooling condensed water precision processing system of the present invention, constitutes various types of line with rubber method for repairing and mending.
The foregoing description only supplies to explain the present invention's usefulness; And be not to be limitation of the present invention; The those of ordinary skill in relevant technologies field without departing from the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited each claim.

Claims (4)

1. the line with rubber method for repairing and mending of an air cooling condensed water precision processing system, it is characterized in that: said line with rubber method for repairing and mending may further comprise the steps:
A, the scared step of rust cleaning of repairing matrix surface: elder generation removes the line with rubber layer of flange surface damage, will need the excessively inside cleaning of part 20-30mm of circular arc then, and it is scared to use iron sand to carry out derusting by sandblast after cleaning out, and removes surface dirt and foreign material again;
B, coating application step: carry out the first road coating construction in back 4 hours up to standard in the processing of the scared step of rust cleaning; According to volume ratio 2~5: 1 is partially mixed on the condiment plate with base-material and auxiliary material; Stir, use the scraper plate material loading then, the running time was controlled in 20~30 minutes; Use roasting lamp that construction surface is toasted after construction finishes, roasting lamp is apart from construction surface 1m, and the construction surface temperature must not be lower than 20 ℃ in the bake process; Said base-material comprises the hot metal pottery HTX in the Suo Tai series product, and said auxiliary material is a solidifying agent;
The maintenance step of c, coating: in greater than 20 ℃ environment, spontaneous curing 3 days; With the irregular part of the simple repairing of instrument.
2. line with rubber method for repairing and mending according to claim 1 is characterized in that: in said coating application step, and the about 0.8~1.2mm of thickness of each road scraper plate material loading.
3. line with rubber method for repairing and mending according to claim 2 is characterized in that: before the scared step of the rust cleaning of said repairing matrix surface, also comprise the pre-treatment step of repairing environment:
Envrionment temperature during construction should be between 18-25 ℃, and relative humidity should be lower than 90%, and the surface of equipment matrix keeps dry, and remove the greasy dirt and the flue gas of environment.
4. according to the described line with rubber method for repairing and mending of any claim in claim 1 or 2 or 3, it is characterized in that: after the maintenance step of said coating, also comprise the quality test step of coating construction, said quality test step comprises:
Visual testing: even, smooth, bright and clean, the no foaming of paint film, no sag, no holiday, no show-through, do not have be full of cracks, do not have the spray of doing and no-sundries;
The electrical spark check: 12kV voltage is no leaky down.
CN200910243259A 2009-12-29 2009-12-29 Method for repairing liner rubber of air-cooling condensation water fine treatment system Active CN102107929B (en)

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Application Number Priority Date Filing Date Title
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CN102107929B true CN102107929B (en) 2012-09-26

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Publication number Priority date Publication date Assignee Title
CN104632815A (en) * 2015-01-26 2015-05-20 哈尔滨飞机工业集团有限责任公司 Helicopter blade rear edge reinforcing plate glue failure repair method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1740393A (en) * 2005-09-15 2006-03-01 邹志尚 Technological process of making ferrous metal surface anticorrosive, antiwear, antishock and insulating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1740393A (en) * 2005-09-15 2006-03-01 邹志尚 Technological process of making ferrous metal surface anticorrosive, antiwear, antishock and insulating

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