CN115815249A - Ship pipeline inner wall cleaning air bag and application method thereof - Google Patents
Ship pipeline inner wall cleaning air bag and application method thereof Download PDFInfo
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- CN115815249A CN115815249A CN202211388619.5A CN202211388619A CN115815249A CN 115815249 A CN115815249 A CN 115815249A CN 202211388619 A CN202211388619 A CN 202211388619A CN 115815249 A CN115815249 A CN 115815249A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000007547 defect Effects 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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Abstract
The invention discloses a ship pipeline inner wall cleaning airbag and an application method thereof, wherein the inner wall cleaning airbag comprises an inflating valve body, a telescopic guide sleeve, a support airbag, a cleaning airbag and a plug, the inflating valve body is of a cylindrical tubular structure, the side part of the inflating valve body is provided with an air source interface, one end of the inflating valve body is provided with a nozzle, an inflating loop is arranged inside the inflating valve body, the air source interface is communicated with the nozzle through the inflating loop, the telescopic guide sleeve and the support airbag are both arranged at one end of the inflating valve body, which is provided with the nozzle, the plug is arranged at an opening at the other end of the inflating valve body, the cleaning airbag is accommodated in the telescopic guide sleeve, one end of the cleaning airbag is hermetically connected with the plug, and the other end of the cleaning airbag is hermetically connected with the support airbag. The invention can completely remove the particles and foreign matters left on the inner wall of the pipeline, namely the defects can be separated from the pipe wall, and the removed particles and foreign matters can be effectively stored.
Description
Technical Field
The invention belongs to the field of LNG natural gas ships and ocean engineering pipeline systems, and particularly relates to a ship pipeline inner wall cleaning air bag and an application method thereof.
Background
With the gradual maturity of the domestic LNG natural gas carrier industry chain, the requirements on the pipeline cleaning quality are particularly important in relation to the construction and construction of a natural gas pipeline system (a CYP low-temperature pipeline system, an FSRU regasification relationship, an FPSO production machine storage pipeline system and the like). The combination of the working environment that the natural gas requires explosion prevention during construction and the particularity of system construction (low-temperature stainless steel, butt welding connection, large-scale module assembly and the like) also provides higher requirements for clearing the cleaning defects in the pipeline.
The invention patent with the patent number of CN109622523A discloses a pipeline cleaning device for loose removal of consolidated moss on the inner wall of a pipeline, which comprises a pipeline body, an operation airbag, an arc-shaped control plate and a pipe wall dredging mechanism, wherein the surface of the pipeline body is U-shaped, the pipe wall dredging mechanism is positioned inside the pipeline body, the operation airbag is positioned outside the pipeline body, an extrusion plate is fixedly bonded on the surface of the operation airbag, a lifting handle is fixedly connected on the surface of the extrusion plate, an arc-shaped chute is formed in the surface of the arc-shaped control plate, a sliding block is slidably connected to the inner wall of the arc-shaped chute, and an arc-shaped permanent magnet is fixedly connected to the surface of the sliding block. The device for removing the moss on the inner wall of the urban sewer pipeline needs to remove the moss by spraying water and adopts the folded air bag for storage, so that the device cannot be applied to the use working condition of a ship pipeline system and cannot solve the problem of removing the cleaning defect of the ship pipeline.
In the prior art, the cleaning defects of the natural gas pipeline system are totally divided into two types: 1. particles generated by the process, such as burrs, slag, scale layer peeling and the like, generally easily adhere to the surface of the pipe wall; 2. foreign materials, such as parts and sundries accidentally entering the pipeline during construction, are generally easily dispersed in the pipeline due to the small volume.
If the cleaning defect is not cleared in time and is left in the pipeline, the later operation of the pipeline system is greatly risked (the pump set is blocked, the filter is blocked, the sensor fails and the like), and serious economic loss is caused. The cleaning mode of the traditional pipeline is carried out by adopting the modes of pipeline flushing, pipeline purging, disassembly polishing cleaning and the like. Because the particularity of natural gas pipeline system material, installation, operation, tear the clear degree of difficulty of managing and the cost is higher relatively, mainly inspects through pipeline robot endoscope and discovers clean defect, and the defect generally adopts compressed air, nitrogen gas to blast and clears away most clean defect, and the clean defect of remainder is clear away (centre gripping is taken out, the compressor sweeps) through pipeline robot arm.
The existing cleaning mode has the following conditions in the actual operation process: (1) The particles adsorbed on the tube wall can not be effectively removed in a blowing mode; (2) The small foreign matters can not be clamped and still remain in the pipeline; (3) The method has the advantages that the method is easy to damage the pipe fitting base metal by removing the particles in a mechanical mode (clamping, polishing, shoveling, scraping and the like), increases extra metal cuttings and is short of an effective storage method; (4) The pipeline is long, and the removed particles and foreign matters cannot be completely taken out of the pipeline; (5) Under some working conditions, the residual natural gas and other combustible gases in the pipeline are lack of cleaning means in an explosion-proof mode.
Disclosure of Invention
Aiming at cleaning defects of particles, foreign matters and the like left on the inner wall of the pipeline, the invention provides the ship pipeline inner wall cleaning air bag which is reliable in function, easy to store and safe to use. In addition, the invention also provides an application method of the cleaning air bag for the inner wall of the ship pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a ship pipeline inner wall cleaning air bag, which comprises an inflation valve body, a telescopic guide sleeve, a support air bag, a cleaning air bag and a plug, wherein the inflation valve body is of a cylindrical tubular structure, an air source interface is arranged on the side part of the inflation valve body, nozzles are uniformly arranged at one end of the inflation valve body along the circumferential direction, an inflation annular channel is arranged in the inflation valve body, the air source interface is communicated with the nozzles through the inflation annular channel, the telescopic guide sleeve and the support air bag are both arranged at one end of the inflation valve body, where the nozzles are arranged, the telescopic guide sleeve is arranged on a tube seat at the inner side of the nozzles, the support air bag is arranged on an air bag connecting seat at the outer side of the nozzles, the plug is arranged at an opening at the other end of the inflation valve body, the cleaning air bag is contained in the telescopic guide sleeve, one end of the cleaning air bag is hermetically connected with the plug, and the other end of the cleaning air bag is hermetically connected with the support air bag.
Preferably, the telescopic guide sleeve includes a telescopic sleeve and a conical cover, an outermost sleeve of the telescopic sleeve is mounted on the inflation valve body, and an end of the conical cover having a smaller diameter is mounted on an innermost sleeve of the telescopic sleeve.
As preferred technical scheme, the support gasbag includes the gasbag body, supports skeleton, big aperture end, small aperture end, the gasbag body is toper tubular structure, and its one end is big aperture end, and the other end is small aperture end, support skeleton follows the anchor ring of the gasbag body evenly arranges, support skeleton's length equals the length of the gasbag body.
As a preferred technical scheme, the air bag body is made of a cloth-based material, and the ductility of the cloth-based material is 30%; the support framework is made of nylon laths, the small-caliber end is connected with the installation interface, and one end of each nylon lath is connected with the installation interface.
As the preferred technical scheme, the cleaning air bag comprises an air bag body and reinforcing ribs, the air bag body is of a cylindrical structure, one end of the air bag body is connected with the air bag body to form a complete structure, the other end of the air bag body is connected with a plug after being closed, the reinforcing ribs are arranged along the annular direction of the air bag body, and the length of the reinforcing ribs is the same as that of the air bag body.
Preferably, the cleaning airbag is coiled and stored in the telescopic guide sleeve after being used and bundled, and is in a squeezing state in the telescopic guide sleeve.
According to the preferable technical scheme, the plug comprises a plug body and a traction ring, the plug body is installed at the end of the inflatable valve body, and the traction ring is installed on the plug body and used for being connected with a tether.
In a second aspect of the present invention, an application method of a marine pipeline inner wall cleaning airbag is provided, where the marine pipeline inner wall cleaning airbag is adopted, and the application method includes the following steps:
step one, preparation work;
step two, inflating the air bag and attaching the air bag to the tube wall; the method specifically comprises the following steps:
s2.1, inflating through an air source interface, ejecting air from a nozzle, and expanding the support airbag towards the direction of the pipe wall to be attached to the pipe wall;
s2.2, the inflation state is continuous, the cleaning air bag is turned over and unfolded, expanded along the length direction of the pipeline and attached to the pipe wall, meanwhile, the cleaning air bag coiled and contained in the telescopic guide sleeve is unfolded outwards in order to cover the area to be cleaned, and the telescopic guide sleeve is unfolded and extended under the power action of the cleaning air bag;
s2.3, after the cleaning air bag in the telescopic guide sleeve is completely unfolded outwards, the fixed plug plays a limiting role, and the cleaning air bag expands outwards and is attached to the pipe wall under the action of internal air pressure;
step three, separating the defects from the pipe wall; the method specifically comprises the following steps:
s3.1, after the cleaning air bag is inflated and attached to the pipe wall, the adhesive in the cleaning area is not cured, and the adhesive and the defects are adhered to the cleaning air bag;
s3.2, after the adhesive is solidified, adhering the adhesive to the cleaning air bag, wherein the adhesive, the defect and the cleaning air bag are integrated;
s3.3, stopping supplying gas to the gas source interface by the gas source, pulling the plug to be disconnected with the opening by the tether, and discharging gas in the supporting airbag and the cleaning airbag to the outside through the gas source interface;
s3.4, folding the cleaning air bag to be retracted into the telescopic guide sleeve under the traction action of the plug, and enabling the cleaning air bag to be in a uniformly contracted state along the circumferential direction of the pipe wall;
s3.5, in the process that the cleaning air bag contracts into the telescopic guide sleeve, the cleaning air bag tears and drops along the edge by the cleaning air bag and is completely separated from the pipe wall;
and step four, taking the defect storage belt away from the pipeline.
As a preferred technical solution, the step one specifically includes the following steps:
s1.1, assembling an inflation valve body, a telescopic guide sleeve, a support air bag, a cleaning air bag and a plug, and arranging a tether on the plug;
s1.2, connecting an air source, checking whether each part leaks, checking whether the cleaning air bag completely expands to meet the cleaning stroke inside the pipeline and whether the cleaning air bag exceeds the inner diameter of the pipeline, and resetting and restoring all parts after the test is finished;
s1.3, spraying an adhesive on a pipe wall area with a cleaning defect according to a cleaning area in the pipeline;
and S1.4, before the adhesive on the pipe wall is cured, conveying the cleaning air bag to a corresponding position in the pipeline.
As a preferred technical solution, the fourth step specifically includes the following steps:
s4.1, folding the cleaning air bag under the traction action of the plug to be retracted into the telescopic guide sleeve, and retracting the defect adhered to the cleaning air bag into the cleaning air bag after the defect is separated from the tube wall;
and S4.2, after the cleaning air bag reaches a complete contraction state, taking the cleaning air bag on the inner wall of the whole pipeline out of the pipeline wall, and finishing the whole cleaning process.
Compared with the prior art, the invention has the following technical effects:
(1) The invention can completely remove the particles and foreign matters left on the inner wall of the pipeline, namely the defects can be separated from the pipe wall, the removed particles and foreign matters can be effectively stored, the new defects caused by falling during the process of carrying the particles and foreign matters out of the pipeline can be prevented, and the cleaning of the defects at any position of the annular pipe wall can be completed.
(2) The invention does not damage the pipe fitting base metal in the cleaning process, does not generate extra metal cutting, meets the explosion-proof requirement in the cleaning process, and does not generate dangerous factors such as mechanical friction, flame, heat release and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the inflation valve body of the present invention.
Fig. 2 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a sectional view taken along the direction B-B in fig. 1.
Fig. 4 is a schematic view of the telescoping guide sleeve in a deployed state.
Fig. 5 is a schematic view of the telescoping guide sleeve in the closed position.
FIG. 6 is a schematic view showing a structure of the support airbag of the present invention in a deployed state.
FIG. 7 is a second schematic view of the support airbag of the present invention in a deployed state.
FIG. 8 is a schematic view of a support airbag according to the present invention in a deflated state.
Fig. 9 is a sectional view taken along the direction C-C of fig. 8.
FIG. 10 is a schematic view showing a connection structure of the support airbag and the inflation valve body according to the present invention.
FIG. 11 is a schematic view showing a structure of the air bag of the present invention in a deployed state.
FIG. 12 is a second schematic view of the airbag of the present invention in a deployed state.
FIG. 13 is a schematic view of a cleaning airbag according to the present invention in a contracted state.
FIG. 14 is a second schematic view of the cleaning airbag of the present invention in a contracted state.
FIG. 15 is a schematic structural view of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 16 is a schematic structural diagram of the inner wall cleaning airbag for the ship pipeline before inflation.
FIG. 17 is a schematic structural diagram of the cleaning airbag for the inner wall of the ship pipeline in the invention when the cleaning airbag is inflated.
Fig. 18 is a schematic structural view of the pipeline robot spraying the adhesive according to the present invention.
Fig. 19 is a detail view of the spray adhesive.
FIG. 20 is a view showing an operation state of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 21 is a second view showing the operation of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 22 is a third view showing the operation of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 23 is a fourth view showing the operation of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 24 is a fifth view showing the operation state of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 25 is a sixth view showing the operation state of the inner wall cleaning airbag for the ship pipeline according to the present invention.
FIG. 26 is a seventh view showing the operation of the air bag for cleaning the inner wall of the pipeline of a ship according to the present invention.
Wherein the reference numerals are specified as follows: the inflatable valve body 1, the air source interface 1.1, the spout 1.2, the opening 1.3, the gasbag connecting seat 1.4, the extension tube seat 1.5, the telescopic guide sleeve 2, the telescopic sleeve 2.1, the conical cover 2.2, the supporting gasbag 3, the gasbag body 3.1, the supporting framework 3.2, the installation interface 3.3, the large-caliber end 3.4, the cleaning gasbag 4, the gasbag body 4.1, the reinforcing rib 4.2, the plug 5, the plug body 5.1, and the traction ring 5.2.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-15, the present embodiment provides a cleaning airbag for inner walls of ship pipelines, which is composed of an inflation valve body 1, a telescopic guide sleeve 2, a support airbag 3, a cleaning airbag 4, and a plug 5. The inflation valve body 1 is a circular tubular structure, an air source interface 1.1 is arranged on the side portion of the inflation valve body 1, an inflation loop is arranged inside the inflation valve body 1, nozzles 1.2 are arranged at one end of the inflation valve body 1, the nozzles 1.2 are uniformly distributed along the central shaft of the valve body to uniformly inflate the airbag, and the nozzles 1.2 are communicated with the air source interface 1.1 through the inflation loop. The one end that inflation valve body 1 set up spout 1.2 is provided with gasbag connecting seat 1.4 and flexible pipe tube seat 1.5, gasbag connecting seat 1.4 sets up in the outside of spout 1.2, flexible pipe tube seat 1.5 sets up in the inboard of spout 1.2, telescopic guiding tube installs on flexible pipe tube seat 1.5, support gasbag 3 and install on gasbag connecting seat 1.4, the other end of inflation valve body 1 is provided with end cap 5, clean gasbag 4's one end and the one end sealing connection who supports gasbag 3, the other end is accomodate the back and is passed telescopic guiding sleeve 2 and end cap 5 fixed mounting. The supporting air bag 3 is detachably connected with the air bag connecting seat 1.4, and the telescopic guide sleeve 2 is detachably connected with the telescopic pipe seat 1.5.
The telescopic guide sleeve 2 comprises a telescopic sleeve 2.1 and a conical cover 2.2, the outermost layer of the telescopic sleeve 2.1 is fixedly arranged on a telescopic tube base 1.5, the end part of the innermost tube is connected with the end with the smaller caliber of the conical cover 2.2, before use, the telescopic sleeve 2.1 is used for accommodating a cleaning air bag 4, and the structure of the telescopic sleeve 2.1 is convenient for saving space. In the process of air bag expansion, the cleaning air bag 4 is driven to gradually expand outwards through the extension and guidance of the sleeve, and the cleaning air bag 4 is bundled in the process of storage; the conical cover 2.2 plays a role in assisting convergence through the trumpet shape in the process of containing the cleaning air bag 4, and abrasion of the cleaning air bag 4 is avoided.
The plug body 5.1 is used for fixing the retracted cleaning air bag 4, is arranged on the telescopic sleeve 2.1 and does not fall off and apply pressure when the air bag is inflated in an airtight state after being arranged; the pulling ring 5.2 is used for connecting a tether and provides operation power for the pressure relief, the air release and the clean storage of the used air bag.
As shown in fig. 16 to 26, the present embodiment further provides an application method of the air bag for cleaning the inner wall of the ship pipeline, which includes the following steps:
step one, preparation work; the method specifically comprises the following steps:
s1.1, assembling an inflation valve body 1, a telescopic guide sleeve 2, a supporting air bag 3, a cleaning air bag 4 and a plug 5, arranging a tether on the plug 5, and communicating an air source on an air source interface 1.1;
s1.2, connecting an air source, checking whether each part leaks, simultaneously checking whether the cleaning air bag 4 completely expands to meet the cleaning stroke inside the pipeline and whether the inner diameter of the pipeline exceeds the inner diameter of the pipeline, and resetting and restoring all parts after the test is finished;
s1.3, spraying an adhesive (the adhesive is not described in detail in the scheme and is used as an auxiliary means for an air bag cleaning mode) on the pipe wall area with cleaning defects according to the cleaning area in the pipeline, wherein the defects need to be completely coated after the adhesive is sprayed, and the coating can be generally carried out by a pipeline robot;
and S1.4, before the adhesive on the pipe wall is cured, ensuring that the 'pipeline inner wall cleaning air bag 4' is delivered to a corresponding position in the pipeline to carry out cleaning operation.
Step two, inflating the air bag and attaching the air bag to the tube wall; the method specifically comprises the following steps:
s2.1, inflating through the air source interface 1.1, ejecting air from the nozzle 1.2, and expanding the support airbag towards the direction of the pipe wall to be attached to the pipe wall;
s2.2, the inflation state is continuous, the cleaning air bag 4 is turned over and unfolded, is expanded along the length direction of the pipeline and is attached to the pipe wall, meanwhile, the cleaning air bag 4 coiled and contained in the telescopic guide sleeve 2 is unfolded outwards in sequence to cover the area to be cleaned, and the telescopic guide sleeve 2 is unfolded and extended under the power action of the cleaning air bag 4;
and S2.3, after the cleaning air bag 4 in the telescopic guide sleeve 2 is completely unfolded outwards, the fixing plug 5 plays a limiting role, and the cleaning air bag 4 expands outwards and clings to the pipe wall under the action of internal air pressure.
Step three, separating the defects from the pipe wall; the method specifically comprises the following steps:
s3.1, after the cleaning air bag 4 is inflated and attached to the pipe wall, the adhesive in the cleaning area is not cured, and the adhesive and the defects are adhered to the cleaning air bag 4;
s3.2, after the adhesive is solidified, adhering the adhesive to the cleaning air bag 4, wherein the adhesive, the defect and the cleaning air bag 4 are integrated;
s3.3, stopping supplying gas to the gas source interface 1.1 by the gas source, pulling the plug 5 to be separated from the opening 1.3 by the tether, and discharging the gas in the supporting airbag 3 and the cleaning airbag 4 to the outside through the gas source interface 1.1;
s3.4, the cleaning air bag 4 is folded and retracted into the telescopic guide sleeve 2 under the traction action of the plug 5, and is in a uniformly contracted state along the circumferential direction of the pipe wall;
s3.5, in the process that the cleaning air bag 4 contracts into the telescopic guide sleeve 2, the cleaning air bag 4 is torn along the edge to fall off and finally is completely separated from the pipe wall.
Step four, taking the defect storage belt away from the pipeline; the method specifically comprises the following steps:
s4.1, folding the cleaning air bag 4 under the traction action of the plug 5 to be retracted into the telescopic guide sleeve 2, and retracting the defect adhered to the cleaning air bag 4 into the cleaning air bag 4 after the defect is separated from the tube wall;
and S4.2, after the cleaning air bag 4 reaches a complete contraction state, taking the cleaning air bag 4 on the inner wall of the whole pipeline out of the pipe wall, and finishing the whole cleaning process.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a boats and ships pipeline inner wall clean gasbag, its characterized in that, includes inflation valve body, telescopic guide sleeve, support gasbag, clean gasbag, end cap, the inflation valve body is cylindrical tubular structure, and its lateral part is provided with air source interface, the one end of inflation valve body evenly is provided with the spout along circumference, the inside of inflation valve body is provided with aerifys the ring channel, air source interface with the spout passes through aerify the ring channel intercommunication, telescopic guide sleeve the support gasbag all install in the inflation valve body sets up the one end of spout, telescopic guide sleeve install in on the inboard flexible pipe tube socket of spout, support the gasbag install in on the gasbag connecting seat in the spout outside, the end cap install in the opening part of the other end of inflation valve body, the cleanness accomodate in the telescopic guide sleeve, the one end sealing connection of clean gasbag the end cap, other end sealing connection support gasbag.
2. The inner wall cleaning airbag for ship pipelines as claimed in claim 1, wherein the telescopic guide sleeve comprises a telescopic sleeve and a conical cover, the outermost sleeve of the telescopic sleeve is mounted on the inflation valve body, and the end with smaller caliber of the conical cover is mounted on the innermost sleeve of the telescopic sleeve.
3. The inner wall cleaning airbag for the ship pipeline as claimed in claim 1, wherein the supporting airbag comprises an airbag body, a supporting framework, a large-diameter end and a small-diameter end, the airbag body is a conical tubular structure, one end of the airbag body is the large-diameter end, the other end of the airbag body is the small-diameter end, the supporting framework is uniformly arranged along the annular surface of the airbag body, and the length of the supporting framework is equal to that of the airbag body.
4. The inner wall cleaning air bag for the ship pipeline as claimed in claim 3, wherein the air bag body is made of a cloth-based material, and the ductility of the cloth-based material is 30%; the support framework is made of nylon laths, the small-caliber end is connected with the installation interface, and one end of each nylon lath is connected with the installation interface.
5. The inner wall cleaning air bag for the ship pipeline according to claim 3, wherein the cleaning air bag comprises an air bag body and a reinforcing rib, the air bag body is of a cylindrical structure, one end of the air bag body is connected with the air bag body to form a complete structure, the other end of the air bag body is connected with a plug after being folded, the reinforcing rib is arranged along the annular direction of the air bag body, and the length of the reinforcing rib is the same as that of the air bag body.
6. The inner wall cleaning airbag for the ship pipeline as claimed in claim 5, wherein the cleaning airbag is coiled and stored in the telescopic guide sleeve after being bundled in use, and is in a compressed state in the telescopic guide sleeve.
7. The inner wall cleaning airbag for the ship pipeline as claimed in claim 1, wherein the plug comprises a plug body and a pulling ring, the plug body is mounted at the end of the inflation valve body, and the pulling ring is mounted on the plug body for connecting a tether.
8. An application method of a ship pipeline inner wall cleaning air bag, which adopts the ship pipeline inner wall cleaning air bag of any one of claims 1-7, and is characterized by comprising the following steps:
step one, preparation work;
step two, inflating the air bag and attaching the air bag to the tube wall; the method specifically comprises the following steps:
s2.1, inflating through an air source interface, ejecting air from a nozzle, and expanding the support airbag towards the direction of the pipe wall to be attached to the pipe wall;
s2.2, the inflating state is continuous, the cleaning air bag is turned over and unfolded, expanded along the length direction of the pipeline and attached to the pipe wall, meanwhile, the cleaning air bag coiled and stored in the telescopic guide sleeve is unfolded outwards in order to cover the area to be cleaned, and the telescopic guide sleeve is unfolded and extended under the power action of the cleaning air bag;
s2.3, after the cleaning air bag in the telescopic guide sleeve is completely unfolded outwards, the fixed plug plays a limiting role, and the cleaning air bag expands outwards and is attached to the pipe wall under the action of internal air pressure;
step three, separating the defects from the pipe wall; the method specifically comprises the following steps:
s3.1, after the cleaning air bag is inflated and attached to the pipe wall, the adhesive in the cleaning area is not cured, and the adhesive and the defects are adhered to the cleaning air bag;
s3.2, after the adhesive is solidified, the adhesive is adhered to the cleaning air bag, and the adhesive, the defects and the cleaning air bag are integrated;
s3.3, stopping supplying gas to the gas source interface by the gas source, pulling the plug to be disconnected with the opening by the tether, and discharging gas in the supporting airbag and the cleaning airbag to the outside through the gas source interface;
s3.4, folding the cleaning air bag to be retracted into the telescopic guide sleeve under the traction action of the plug, and enabling the cleaning air bag to be in a uniformly contracted state along the circumferential direction of the pipe wall;
s3.5, in the process that the cleaning air bag contracts into the telescopic guide sleeve, the cleaning air bag tears and drops along the edge by the cleaning air bag and is completely separated from the pipe wall;
and step four, taking the defect storage belt away from the pipeline.
9. The application method of the marine pipeline inner wall cleaning airbag as claimed in claim 8, wherein the first step specifically comprises the following steps:
s1.1, assembling an inflation valve body, a telescopic guide sleeve, a support air bag, a cleaning air bag and a plug, and arranging a tether on the plug;
s1.2, connecting an air source, checking whether each part leaks, checking whether the cleaning air bag completely expands to meet the cleaning stroke inside the pipeline and whether the cleaning air bag exceeds the inner diameter of the pipeline, and resetting and restoring all parts after the test is finished;
s1.3, spraying an adhesive on a pipe wall area with a cleaning defect according to a cleaning area in the pipeline;
and S1.4, before the adhesive on the pipe wall is cured, conveying the cleaning air bag to a corresponding position in the pipeline.
10. The application method of the marine pipeline inner wall cleaning airbag as claimed in claim 8, wherein the fourth step specifically comprises the following steps:
s4.1, folding the cleaning air bag under the traction action of the plug to be retracted into the telescopic guide sleeve, and retracting the defect adhered to the cleaning air bag into the cleaning air bag after the defect is separated from the tube wall;
and S4.2, after the cleaning air bag reaches a complete contraction state, taking the cleaning air bag on the inner wall of the whole pipeline out of the pipe wall, and finishing the whole cleaning process.
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