CN117404547A - Repairing method of fireproof lining of hose - Google Patents
Repairing method of fireproof lining of hose Download PDFInfo
- Publication number
- CN117404547A CN117404547A CN202210798095.0A CN202210798095A CN117404547A CN 117404547 A CN117404547 A CN 117404547A CN 202210798095 A CN202210798095 A CN 202210798095A CN 117404547 A CN117404547 A CN 117404547A
- Authority
- CN
- China
- Prior art keywords
- filler
- area
- fireproof lining
- repair
- fireproof
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012423 maintenance Methods 0.000 claims abstract description 60
- 239000000945 filler Substances 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 51
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 239000002313 adhesive film Substances 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 10
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 7
- 230000003902 lesion Effects 0.000 claims description 5
- 230000006378 damage Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a repairing method of a fireproof lining for a hose, which comprises the following steps: s1, cleaning and removing materials of the damaged part to form a preliminary maintenance area; s2, filling filler in the maintenance area; and S3, performing film pressing protection treatment on the filler in the maintenance area, and waiting for curing of the filler. The repairing method avoids the original repairing mode that the whole pipeline needs to be disassembled and the lining is replaced. According to the method, the fireproof lining of the whole pipeline does not need to be replaced, and the emptying and the refilling of fluid are not involved, so that the material cost is reduced; corresponding maintenance procedures are reduced, and labor cost and required maintenance time of stopping the site are reduced; in addition, since engine start is not involved, no special maintenance site is required.
Description
Technical Field
The invention belongs to the technical field of maintenance, and particularly relates to a method for repairing a fireproof lining of a hose.
Background
In order to lighten the weight and avoid thermal stress, the aeroengine pipeline adopts a hose design in a large quantity, and a fireproof lining is arranged outside the hose so as to prolong the service life of the hose, keep the temperature of fluid in the pipeline, and prevent the fluid from being ignited when the engine fires, thereby meeting the fireproof requirement.
Because high-frequency vibration is generated when the aeroengine runs, the fireproof lining is extremely easy to break due to long-term mechanical vibration. In the past, the method for treating the damage of the fireproof lining is usually to replace, the fluid in the pipeline is required to be emptied before replacement, the corresponding pipeline is disassembled, the pipeline is required to be installed after replacement, the fluid is refilled, and the leakage test under the engine driving is carried out. This approach results in high material costs due to the need to replace the fire protection liner of the entire pipeline and the associated evacuation and refill of fluid. Because of the numerous process steps involved, labor costs and required downtime are also relatively high. In addition, since the engine is started after the installation, the requirements on the maintenance site are also severe.
Disclosure of Invention
The invention aims to overcome the defects of high maintenance cost and complex working procedures of a hose in the prior art and provides a repairing method of a fireproof lining of the hose.
The invention solves the technical problems by the following technical scheme:
a method of repairing a fire protection liner for a hose, comprising the steps of:
s1, cleaning and removing materials of damaged parts to form a preliminary maintenance area;
s2, filling filler in the maintenance area;
and S3, performing film pressing protection treatment on the filler in the maintenance area, and waiting for curing of the filler.
In the technical scheme, the repairing method avoids the original repairing mode that the whole pipeline needs to be disassembled and the lining is replaced. According to the method, the fireproof lining of the whole pipeline does not need to be replaced, and the emptying and the refilling of fluid are not involved, so that the material cost is reduced; corresponding maintenance procedures are reduced, and labor cost and required maintenance time of stopping the site are reduced; in addition, since engine start is not involved, no special maintenance site is required.
Preferably, in S1, cleaning and removing the material of the damaged portion includes: a tool is used to remove material around the lesion.
In the technical scheme, after the material of the damaged part is required to be removed, the material around the damaged part is required to be correspondingly removed (namely, the materials with the affected periphery are removed together), so that a foundation is laid for the subsequent repair quality.
Preferably, the size of the removed surrounding material does not exceed the area where the lesion site contour extends outwardly by 0.6 mm.
In the technical scheme, the area with the size of removing surrounding materials not exceeding the outline of the damaged part and extending outwards by 0.6mm is used for maximizing the involvement of the damaged part in protecting the material of the intact part of the fireproof lining.
Preferably, after the step S1 of cleaning and removing the material of the damaged portion, the step S1.1 of polishing the surface of the maintenance area is further included, so that the smoothness of the maintenance area is ensured, and the preliminary maintenance area is cleaned.
In this technical scheme, polish the maintenance area surface and handle, be in order to make the surface of maintenance area level and smooth, can not mix with other materials and influence the fireproof effect of follow-up fireproof lining when convenient follow-up packing filler to and keep the aesthetic property of fireproof lining.
Preferably, between S1 and S2, S1.2 is further included: removing all loose material from the damaged area and cleaning to form a final repair area.
In the technical scheme, in the step of polishing the surface of the maintenance area, partial loosening of the material in the area may be further caused, so that further treatment is required to form a final maintenance area, which lays a good foundation for filling the area later.
Preferably, the filler is the same as the base material of the fireproof lining.
In this technical scheme, the filler is the same with the parent metal material of bush material in order to realize the structural integrity of fire prevention bush, maintains the original function of fire prevention bush.
Preferably, in S3, performing a film lamination protection treatment on the filler in the maintenance area includes: and winding an adhesive film outside the fireproof lining so that the filler is uniformly paved on the surface of the maintenance area.
In this technical scheme, twine the glued membrane in the outside of fireproof lining, can make the filler evenly lay on the maintenance area surface, can form better linking and fusion with the undamaged region of fireproof lining.
Preferably, the wrapping of the adhesive film around the exterior of the fireproof bushing includes: and winding adhesive films on the outer parts of the fireproof bushings in the same direction or different directions, and exhausting air in the filler.
In this technical scheme, twine the film along the outside of fireproof lining towards same direction or different directions can make the filler of filling at the maintenance regional surface evenly spread through the tensioning force to can get rid of the air in the filler, with the preliminary solidification efficiency of acceleration filler.
Preferably, in S3, after wrapping the adhesive film around the exterior of the fireproof liner, the method further includes: and fixing the adhesive film by using an adhesive tape.
In the technical scheme, the adhesive tape is used for fixing the adhesive film, so that the adhesive film can be prevented from generating offset to drive the filler covered in the maintenance area to move together so as to influence the final forming effect.
Preferably, after S3, the method further comprises: s4, removing the adhesive tape and the adhesive film, checking the repair part, and ensuring that the filler is thoroughly cured and glued.
In the technical scheme, the repair part is inspected, so that the safety and reliability of the fireproof lining in the subsequent use process can be ensured by thoroughly curing and gluing the filler.
The invention has the positive progress effects that: the repairing method provided by the invention avoids the original repairing mode that the whole pipeline needs to be disassembled and the lining is replaced. According to the method, the fireproof lining of the whole pipeline does not need to be replaced, and the emptying and the refilling of fluid are not involved, so that the material cost is reduced; corresponding maintenance procedures are reduced, and labor cost and required maintenance time of stopping the site are reduced; in addition, since engine start is not involved, no special maintenance site is required.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention;
FIG. 2 is a view of a repair area treatment in a fire protection liner in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating repair of a damaged portion according to an embodiment of the invention.
Reference numerals illustrate:
fireproof lining 100
Injury site 1
Removal site 2
Maintenance area 3
Filler 4
Adhesive film 5
Adhesive tape 6
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the present embodiment provides a repair method of a fireproof lining 100 for a hose, which is applied to a fireproof lining of a hose of an aeroengine, and specifically, includes the steps of:
s1, cleaning and removing materials of a damaged part 1 to form a primary maintenance area 3;
s2, filling a filler 4 in the maintenance area 3;
and S3, performing film pressing protection treatment on the filler 4 in the maintenance area 3, and waiting for curing of the filler 4.
The repairing method avoids the original repairing mode that the whole pipeline needs to be disassembled and the lining is replaced. The method does not need to replace the fireproof lining 100 of the whole pipeline, and does not involve emptying and refilling fluid, thereby reducing high material cost; corresponding maintenance procedures are reduced, and labor cost and required maintenance time of stopping the site are reduced; in addition, since engine start is not involved, no special maintenance site is required.
In other fields, the method provided in this embodiment may be used as long as the bushing structure outside the hose is related, and the application scenario is not specifically limited herein.
Specifically, in S1, the material for cleaning and removing the damaged portion 1 includes: a tool is used to remove material around the lesion. In addition to the need of removing the material at the damaged portion, the material around the damaged portion needs to be removed correspondingly (i.e. the material with the affected periphery is removed together), so as to lay a foundation for the subsequent repair quality. Wherein the size of the removed surrounding material does not exceed the area of the lesion site 1 which extends outwardly by 0.6 mm. This step is to maximize the involvement of the material that protects the intact portion of the flame retardant bushing 100 from the damage site 1. In other alternative embodiments, the extent of removal may be adapted to the specific situation of the damaged portion and the structure of the fireproof lining, i.e. the dimensions of the removed surrounding material may be kept within a suitable range, without being specifically limited herein.
In this embodiment, the tool may be, for example, a putty knife, and in other alternative embodiments, other tools may be, for example, a glove, a spatula, or a mud knife, so long as the material at the damaged portion 1 and surrounding materials can be cleaned, which is not particularly limited herein.
Specifically, in S1, after the material of the damaged portion 1 is cleaned and removed, S1.1 is further included, and the surface of the maintenance area 3 is polished, so that the smoothness of the maintenance area 3 is ensured, and the preliminary maintenance area 3 is cleaned. The polishing treatment is performed on the surface of the maintenance area 3, so that the surface of the maintenance area 3 is smooth, other materials are not mixed when the filler 4 is filled later conveniently, the fireproof effect of the subsequent fireproof lining 100 is affected, and the attractiveness of the fireproof lining 100 is maintained.
In this embodiment, the surface of the damaged or unfilled portion may be properly polished by using, for example, a grinder or sand paper, and the dust left after polishing may be removed by a cleaner, and the surface may be cleaned by using a cotton towel and alcohol. In other alternative embodiments, other polishing tools and cleaning tools may be used to treat the maintenance area 3, so long as the surface of the maintenance area 3 is smooth and flat, and the present invention is not limited in detail.
S1.2 is required after S1.1: the removal of all loose material of the damaged area 1 has formed the removed area 2 and is cleaned to form the final service area 3. In the step of polishing the surface of the service area 3 in the preamble, a partial loosening of the material in the area may further occur, so that further processing is required to form the final service area 3, which lays a good foundation for the subsequent filling of this area.
In this embodiment, the filler 4 is made of the same material as the base material of the fireproof lining 100. The filler 4 may be a silicone rubber compound. The filler 4 is made of the same material as the base material of the bushing to achieve structural integrity of the fireproof bushing 100 and maintain the original function of the fireproof bushing 100.
It should be noted that, in other alternative embodiments, other materials may be used for the filler 4, and the silicone rubber compound is only schematically illustrated, so long as the base material used in the fireproof lining 100 has similar parameters and can perform the corresponding functions, which is not particularly limited herein.
Specifically, in S3, the film-pressing protection treatment of the filler 4 of the maintenance area 3 includes: the adhesive film 5 is wound around the exterior of the fireproof bushing 100 so that the filler 4 is uniformly spread on the surface of the maintenance area 3. This step enables the filler 4 to be uniformly laid on the surface of the repair area 3, and to form a better engagement and fusion with the unbroken area of the fire-protection lining 100.
In this embodiment, the adhesive film 5 is wound around the exterior of the fireproof lining 100 in the same direction, i.e., may be wound around the exterior of the fireproof lining 100 in a clockwise direction or a counterclockwise direction, and the air in the filler 4 is discharged while winding. This step enables the filler 4 filled on the surface of the maintenance area 3 to be uniformly spread by the tension, and since the air in the filler 4 (i.e., the filler 4 has many fine bubbles) affects the curing efficiency of the filler 4, the air in the filler 4 can be removed by pressing the filler 4 while winding, so that the preliminary curing efficiency of the filler 4 can be accelerated.
It should be noted that, in other alternative embodiments, the direction of winding the adhesive film 5 around the fireproof liner 100 may be different, but the filler 4 needs to be ensured to uniformly and evenly cover the surface of the maintenance area 3, which is not particularly limited herein.
In this embodiment, it should be emphasized that during the winding process, the adhesive film 5 needs to be lightly tensioned and cannot be too strongly tensioned, and because too much tension can cause the filler 4 to separate from the surface of the maintenance area 3, only substantial tensioning, no wrinkles between layers, no air, and close contact with the skin of the fireproof lining 100 is required.
Specifically, after the adhesive film 5 is wound around the exterior of the fireproof lining 100, it further includes: the adhesive film 5 is fixed using the adhesive tape 6, and kept at room temperature for 6 hours or more, and the curing of the silicone rubber compound 4 is waited.
The glue film 5 can be prevented from being deviated to drive the filler 4 covered on the maintenance area 3 to move together so as to influence the final forming effect. In this embodiment, the adhesive film 5 is a polyethylene film, and in other alternative embodiments, a film of another material may be wound on the surface of the fireproof lining 100 so that the filler 4 is uniformly laid on the maintenance area 3, which is not specifically limited herein.
In addition, in other alternative embodiments, for filling the filler 4, gloves, spatulas, mud knives and putty knives may be used to lay on the surface of the maintenance area 3, and the hand may be used to apply the filler when there is no other tool, so that no exposed portion of the maintenance area 3 needs to be ensured, which is not particularly limited herein.
After S3, further comprising: s4, removing the adhesive tape 6 and the adhesive film 5, checking the repair part, and ensuring that the filler 4 is thoroughly cured and glued. Checking the repair ensures that the filler 4 has cured completely and glued to ensure the safety and reliability of the fire protection bushing 100 during subsequent use.
In summary, the repairing method provided in this embodiment avoids the original repair method that needs to disassemble the whole pipeline and replace the liner. The method does not need to replace the fireproof lining 100 of the whole pipeline, and does not involve emptying and refilling fluid, thereby reducing high material cost; corresponding maintenance procedures are reduced, and labor cost and required maintenance time of stopping the site are reduced; in addition, since engine start is not involved, no special maintenance site is required.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (10)
1. A method of repairing a fire protection liner for a hose, comprising the steps of:
s1, cleaning and removing materials of damaged parts to form a preliminary maintenance area;
s2, filling filler in the maintenance area;
and S3, performing film pressing protection treatment on the filler in the maintenance area, and waiting for curing of the filler.
2. The repair method for a fireproof lining of a hose according to claim 1, wherein in S1, cleaning and removing the damaged portion of the material comprises: a tool is used to remove material around the lesion.
3. A repair method for a fire protection liner for a hose according to claim 2, wherein the removed surrounding material is of a size not exceeding the area where the damage site profile extends outwardly by 0.6 mm.
4. The repair method for a fireproof lining of a hose according to claim 1, wherein the repair method further comprises S1.1, polishing the surface of the repair area after S1, cleaning and removing the damaged portion, ensuring the flatness and smoothness of the repair area, and cleaning the preliminary repair area.
5. The repair method for a fire protection liner of a hose according to claim 1, further comprising S1.2 between S1 and S2: removing all loose material from the damaged area and cleaning to form a final repair area.
6. The repair method for a fire protection liner of a hose according to claim 1, wherein the filler is the same material as the base material of the fire protection liner.
7. The repair method for a fireproof lining of a hose according to claim 1, wherein, in S3, the film-pressing protection treatment of the filler of the repair area comprises: and winding an adhesive film outside the fireproof lining so that the filler is uniformly paved on the surface of the maintenance area.
8. The repair method for a fireproof lining of a hose according to claim 7, wherein winding a glue film on the outside of the fireproof lining comprises: and winding adhesive films on the outer parts of the fireproof bushings in the same direction or different directions, and exhausting air in the filler.
9. The repair method for a fireproof lining of a hose according to claim 7, wherein, in S3, after winding a glue film on the outside of the fireproof lining, further comprises: and fixing the adhesive film by using an adhesive tape.
10. The repair method for a fireproof lining of a hose according to claim 7, further comprising, after S3: s4, removing the adhesive tape and the adhesive film, checking the repair part, and ensuring that the filler is thoroughly cured and glued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798095.0A CN117404547A (en) | 2022-07-06 | 2022-07-06 | Repairing method of fireproof lining of hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210798095.0A CN117404547A (en) | 2022-07-06 | 2022-07-06 | Repairing method of fireproof lining of hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117404547A true CN117404547A (en) | 2024-01-16 |
Family
ID=89494878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210798095.0A Pending CN117404547A (en) | 2022-07-06 | 2022-07-06 | Repairing method of fireproof lining of hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117404547A (en) |
-
2022
- 2022-07-06 CN CN202210798095.0A patent/CN117404547A/en active Pending
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