阅读说明：本技术 一种紫外灯光固化管道修复方法 (Ultraviolet light curing pipeline repairing method ) 是由 郭志强 于 2020-06-17 设计创作，主要内容包括：本发明涉及一种紫外灯光固化管道修复方法,涉及市政管道修复技术领域,包括有步骤：S1.调查检测,确定旧管道数据和位置并制备管道内衬；S2.通风清洗,分两次对旧管道进行清洗作业；S3.清洗检测,采用管道CCTV电视摄像检测系统对清洗后的管道内壁进行检测；S4.拉入作业,将管道内衬拉入旧管道中；S5.充气作业,充气胀圆管道内衬并贴紧旧管道的内壁,构成一体式的管中管结构；S6.固化作业,采用紫外灯照射固化管道内衬；S7.修复检测,采用CCTV电视摄像检测系统对新管道进行检测；S8.后期处理,路面恢复。紫外光固化管道内衬的修复作业方法,是在旧管道的内壁上固化管道内衬,不需要更换旧管道或者开挖路面,从而达到非开挖修复市政管道的目的。(The invention relates to an ultraviolet light curing pipeline repairing method, which relates to the technical field of municipal pipeline repairing and comprises the following steps: s1, surveying and detecting, determining data and positions of old pipelines and preparing pipeline linings; s2, ventilating and cleaning, namely cleaning the old pipeline twice; s3, cleaning and detecting, namely detecting the inner wall of the cleaned pipeline by adopting a pipeline CCTV (closed Circuit television) camera detection system; s4, pulling in operation, namely pulling the pipeline lining into the old pipeline; s5, inflating to expand the liner of the round pipeline and attach the liner to the inner wall of the old pipeline to form an integrated pipe-in-pipe structure; s6, curing operation, namely irradiating the inner lining of the curing pipeline by using an ultraviolet lamp; s7, repairing and detecting, namely detecting the new pipeline by adopting a CCTV (television coded TV) camera detection system; and S8, post-processing and recovering the pavement. The repairing operation method of the ultraviolet curing pipeline lining is to cure the pipeline lining on the inner wall of the old pipeline without replacing the old pipeline or excavating the road surface, thereby achieving the aim of repairing the municipal pipeline without excavating.)

1. An ultraviolet light curing pipeline repairing method is characterized in that: comprises the following steps of (a) carrying out,

s1, investigation and detection, wherein before the pipeline repair design of the ultraviolet curing pipeline lining is carried out, the attributes and the conditions of an old pipeline are firstly investigated and detected, the pipe wall structure and the actual conditions in the pipe of the old pipeline are subjected to image detection, the pipeline lining is prepared according to a design scheme, and the pipeline lining is soaked with ultraviolet curing resin; the pipeline lining comprises a fabric layer (1), a film layer (2) and a rubber layer (3) which are formed in sequence, and the fabric layer (1) is impregnated with ultraviolet curing resin;

s2, ventilation cleaning, namely, before the detection operation in the step S1, an old pipeline needs to be plugged and water is guided, and then the cleaning operation for the first time is carried out; ventilating and ventilating the old pipeline before the ultraviolet curing operation is started, and then performing a second cleaning operation;

s3, cleaning and detecting, namely detecting the inner wall of the cleaned pipeline by adopting a CCTV (television coded television) camera detection system to determine whether the pipeline lining repairing condition is met; if the pipeline lining repairing condition is met, performing construction operation; if the pipeline lining repair conditions are not met, local repair treatment is required before construction operation;

s4, pulling-in operation, wherein before pulling in the pipeline lining, protective pad films are laid and fixed in the old pipeline and the operation well, then the pipeline lining is pulled into the old pipeline and is folded and placed on the protective pad films;

s5, inflating, namely firstly installing binding heads at two ends of the pipeline lining, then blowing air into the pipeline lining, inflating for the first time to expand the pipeline lining and maintain the pressure, inflating for the second time to a final pressure value to completely expand the pipeline lining, wherein the outer wall of the pipeline lining is tightly attached to the inner wall of the old pipeline, and the final pressure value is maintained;

s6, curing operation, namely passing an ultraviolet lamp through the pipeline lining at a constant speed and curing resin, combining the pipeline lining and the old pipeline to form an integrated pipe-in-pipe structure, wherein the running speed of the ultraviolet lamp is determined by the inner diameter of the old pipeline, the wall thickness of the pipeline lining and the power of the ultraviolet lamp; while the ultraviolet lamp is used for curing, a constructor observes the bulging condition of the pipeline lining through an image system attached to the ultraviolet lamp, and if no problem exists, the light curing operation is continued; if the problem exists, stopping the photocuring operation and performing secondary circle expansion operation on the pipeline lining;

s7, repairing and detecting, wherein after the curing operation is finished, a CCTV (television set for television) camera detection system is adopted to detect a new pipeline formed by the pipeline lining and the old pipeline together so as to determine whether the pipeline lining repairing requirement is met; if the requirement of repairing the inner lining of the pipeline is not met, performing ultraviolet light secondary curing operation;

s8, performing post-processing, namely cutting off redundant parts at two ends of the pipeline lining, pulling out an inner membrane of the pipeline lining, and sealing the end part of a new pipeline; and (4) evacuating related construction facilities, connecting the repaired new pipeline into the original pipeline system, and performing spot inspection on the service condition of the new pipeline by a keeper at different time intervals.

2. The UV light curing pipe repairing method according to claim 1, wherein in step S6, for the pipe repairing operation with short repairing length, a UV lamp is disposed in the pipe liner; aiming at the pipeline repairing operation with long repairing length, a plurality of ultraviolet lamps are sequentially arranged in the pipeline lining at intervals, and the ultraviolet lamps gradually enter the pipeline lining and do reciprocating motion in respective intervals.

3. The UV light curing pipe repair method according to claim 1, wherein in step S5, the inner pressure of the pipe liner during the first inflation is 0.02-0.03MPa and is maintained for 40min, and the final pressure value during the second inflation is determined by the inner diameter of the old pipe but is greater than the pressure during the first inflation; in step S6, the pressure value required for the secondary round expansion work is larger than the final pressure value.

4. The ultraviolet light curing pipeline repairing method according to claim 1, wherein in step S1, when the pipe diameter is less than 1000mm, a multiplex image detection method is selected, a pipeline QV camera detection system is adopted to carry out first detection on the pipe orifice condition of the old pipeline and the pipe inner condition of the old pipeline, and a pipeline sonar detection system is adopted to carry out second detection on the pipe wall condition of the old pipeline; when the pipe diameter is larger than 1000mm, a method for manually entering the pipe to perform image detection is selected.

5. The ultraviolet light curing pipeline repairing method as set forth in claim 4, wherein the fabric layer (1) is arranged in a tubular structure, one side of the fabric layer (1) is coated to form the film layer (2), and the other side of the fabric layer (1) is laid to form the rubber layer (3); the fabric layer (1) is coated and molded with the film layer (2), then is impregnated with thermosetting resin, and then is laid with the rubber layer (3) which expands with water.

6. The ultraviolet light curing pipeline repairing method according to claim 5, wherein in step S1, a pipeline QV camera detection system is adopted to carry out first detection on the pipe orifice condition of the main pipe and the pipe inner condition of the main pipe, a pipeline sonar detection system is adopted to carry out second detection on the pipe wall condition of the main pipe, and a three-dimensional data model of the pipeline is constructed by combining data of the first detection and data of the second detection; and scanning the interior of the pipeline by adopting a 3D scanning technology, constructing a 3D scanning data model, and correcting the constructed three-dimensional data model according to the 3D scanning data model.

7. The ultraviolet light curing pipeline repairing method as claimed in claim 1, wherein both ends of the pipeline lining should exceed the old pipeline by 20mm, in step S8, a stainless steel lining is embedded at both end openings of the new pipeline and sealed with a quick setting resin adhesive, and a plastic lining is sandwiched between the outer wall of the stainless steel lining and the inner wall of the new pipeline.

8. The ultraviolet light curing pipeline repairing method as claimed in claim 7, wherein the branch pipe is communicated with the old pipeline before repairing, a recess is formed in the pipeline lining at the communication position of the old pipeline and the branch pipe after fixing the stainless steel lining, and the CCTV camera detection system and the cutting repair robot are matched to search for the recess and punch the communication branch pipe and the new pipeline.

9. The ultraviolet light curing pipeline repairing method as claimed in claim 1, wherein in step S2, the first cleaning operation is performed by high pressure water cleaning using a high pressure water cleaning vehicle, and the second cleaning operation is performed by cleaning the inner wall of the old pipeline using a pipe cleaner.

10. The ultraviolet light curing pipeline repairing method as claimed in claim 1, wherein in step S3, the local repair treatment comprises polyurethane joint circumferential seam leak-stopping repair, stainless steel lining and steel collar reinforced pipeline repair and pipeline local lining repair.

Technical Field

The invention relates to the technical field of municipal pipeline repair, in particular to an ultraviolet light curing pipeline repair method.

Background

Along with the construction of urban transportation facilities such as roads, bridges, underground rail transit and the like, the restoration technology of drainage facilities and municipal pipelines for protecting the water quality of public water areas and urban public environments has also been greatly developed.

In the construction and maintenance management work of urban infrastructure, phenomena such as underground pipeline body rupture, pipeline interface disconnection, groundwater seepage can be found, and the road sinks to the extent that collapses, influences traffic and normal municipal drainage from this arouse. In general, it is necessary to repair a pipeline by using an excavation repair technique, i.e., excavating a ground to expose the pipeline, and completing the repair operation by repairing or even replacing the pipeline, for example, in chinese patent application publication No. CN107322078A, the pipeline repair device is cut by using an annular knife to complete the cutting operation of the pipeline, and then the interior of the pipeline is repaired. However, when the pipeline repairing operation is carried out by adopting the excavation type pipeline repairing technology, a construction area needs to be isolated on a road surface and pipelines need to be excavated, municipal traffic and surrounding underground pipelines are affected, and the prior art has the improvement.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an ultraviolet light curing pipeline repairing method, wherein a pipeline lining soaked with ultraviolet light curing resin is laid in an old pipeline, the pipeline lining is irradiated by ultraviolet light to cure the pipeline lining, and the pipeline lining and the old pipeline are tightly combined to form an integrated pipe-in-pipe structure, so that the aim of repairing municipal pipelines in a non-excavation mode is fulfilled.

The above object of the present invention is achieved by the following technical solutions: an ultraviolet light curing pipeline repairing method is characterized in that: s1, investigation and detection, wherein before the pipeline repair design of the ultraviolet curing pipeline lining is carried out, the attributes and the conditions of an old pipeline are firstly investigated and detected, the pipe wall structure and the actual conditions in the pipe of the old pipeline are subjected to image detection, the pipeline lining is prepared according to a design scheme, and the pipeline lining is soaked with ultraviolet curing resin; the pipeline lining comprises a fabric layer, a film layer and a rubber layer which are formed in sequence, and the fabric layer is impregnated with ultraviolet curing resin; s2, ventilation cleaning, namely, before the detection operation in the step S1, an old pipeline needs to be plugged and water is guided, and then the cleaning operation for the first time is carried out; ventilating and ventilating the old pipeline before the ultraviolet curing operation is started, and then performing a second cleaning operation; s3, cleaning and detecting, namely detecting the inner wall of the cleaned pipeline by adopting a CCTV (television coded television) camera detection system to determine whether the pipeline lining repairing condition is met; if the pipeline lining repairing condition is met, performing construction operation; if the pipeline lining repair conditions are not met, local repair treatment is required before construction operation; s4, pulling-in operation, wherein before pulling in the pipeline lining, protective pad films are laid and fixed in the old pipeline and the operation well, then the pipeline lining is pulled into the old pipeline and is folded and placed on the protective pad films; s5, inflating, namely firstly installing binding heads at two ends of the pipeline lining, then blowing air into the pipeline lining, inflating for the first time to expand the pipeline lining and maintain the pressure, inflating for the second time to a final pressure value to completely expand the pipeline lining, wherein the outer wall of the pipeline lining is tightly attached to the inner wall of the old pipeline, and the final pressure value is maintained; s6, curing operation, namely passing an ultraviolet lamp through the pipeline lining at a constant speed and curing resin, combining the pipeline lining and the old pipeline to form an integrated pipe-in-pipe structure, wherein the running speed of the ultraviolet lamp is determined by the inner diameter of the old pipeline, the wall thickness of the pipeline lining and the power of the ultraviolet lamp; while the ultraviolet lamp is used for curing, a constructor observes the bulging condition of the pipeline lining through an image system attached to the ultraviolet lamp, and if no problem exists, the light curing operation is continued; if the problem exists, stopping the photocuring operation and performing secondary circle expansion operation on the pipeline lining; s7, repairing and detecting, wherein after the curing operation is finished, a CCTV (television set for television) camera detection system is adopted to detect a new pipeline formed by the pipeline lining and the old pipeline together so as to determine whether the pipeline lining repairing requirement is met; if the requirement of repairing the inner lining of the pipeline is not met, performing ultraviolet light secondary curing operation; s8, performing post-processing, namely cutting off redundant parts at two ends of the pipeline lining, pulling out an inner membrane of the pipeline lining, and sealing the end part of a new pipeline; and (4) evacuating related construction facilities, connecting the repaired new pipeline into the original pipeline system, and performing spot inspection on the service condition of the new pipeline by a keeper at different time intervals.

Through adopting above-mentioned technical scheme, constructor at first need detect and prepare the pipeline inside lining to old pipeline, then carry out the shutoff to old pipeline and wash, lay the pipeline inside lining in old pipeline again, and through ultraviolet irradiation for the pipeline inside lining solidifies on the inner wall of old pipeline, forms the integral type pipe-in-pipe structure with old pipeline zonulae occludens, checks and accepts the detection and resumes road surface and operation well to new pipeline at last, thereby accomplishes the restoration operation of ultraviolet curing pipeline inside lining. The ultraviolet curing pipeline lining repairing operation is to cure the pipeline lining on the inner wall of the old pipeline without replacing the old pipeline or excavating the road surface, thereby achieving the aim of repairing the municipal pipeline without excavating.

The present invention in a preferred example may be further configured to: in step S6, for the pipeline repair work with short repair length, an ultraviolet lamp is set in the pipeline liner; aiming at the pipeline repairing operation with long repairing length, a plurality of ultraviolet lamps are sequentially arranged in the pipeline lining at intervals, and the ultraviolet lamps gradually enter the pipeline lining and do reciprocating motion in respective intervals.

By adopting the technical scheme, when the length of the old pipeline is shorter, one ultraviolet lamp can be used for curing operation, so that the implementation is convenient; when the length of the old pipeline is longer, a plurality of ultraviolet lamps can be used for simultaneously carrying out curing operation, and the curing operation efficiency is favorably improved.

The present invention in a preferred example may be further configured to: in step S5, the inner pressure of the pipe lining during the first inflation is between 0.02 Mpa and 0.03Mpa and kept for 40min, and the final pressure value during the second inflation is determined by the inner diameter of the old pipe, but is larger than the pressure during the first inflation; in step S6, the pressure value required for the secondary round expansion work is larger than the final pressure value.

By adopting the technical scheme, the first inflation has the function of primarily expanding the round pipeline lining, the second inflation has the function of completely expanding the round pipeline lining, and the two-stage round expansion construction mode is favorable for reducing wrinkles generated in the round expansion process of the pipeline lining; when the pipeline lining part is not expanded, the pressure in the pipeline can be increased, so that the pressure in the pipeline is slightly greater than the final pressure value, and the circular pipeline lining is completely expanded.

The present invention in a preferred example may be further configured to: in step S1, when the pipe diameter is smaller than 1000mm, selecting a multiple image detection method, performing a first detection on the pipe orifice condition of the old pipe and the pipe inside condition of the old pipe by using a pipe QV camera detection system, and performing a second detection on the pipe wall condition of the old pipe by using a pipe sonar detection system; when the pipe diameter is larger than 1000mm, a method for manually entering the pipe to perform image detection is selected.

By adopting the technical scheme, the QV camera detection system is suitable for detecting the conditions of the inside and the pipe orifice of the pipeline, the pipeline sonar detection system is suitable for detecting the pipe wall condition of the pipeline, the two detection modes are combined, the detection and data acquisition operation of the old pipeline with the pipe diameter less than 1000mm is completed, and the detection accuracy is better; and for the detection and data acquisition operation of the old pipeline with the pipe diameter larger than 1000mm, the pipeline can be manually lowered for image acquisition.

The present invention in a preferred example may be further configured to: the fabric layer is arranged into a tubular structure, one side of the fabric layer is coated to form the film layer, and the other side of the fabric layer is paved to form the rubber layer; the fabric layer is coated and molded with the film layer, then is impregnated with thermosetting resin, and then is laid with the rubber layer which expands with water.

By adopting the technical scheme, the film layer plays a role in protecting the fabric layer impregnated with the thermosetting resin, and the rubber layer can play a role in protecting the fabric layer and also can play a role in filling gaps between the fabric layer and the inner wall of the pipeline.

The present invention in a preferred example may be further configured to: in step S1, a pipeline QV camera detection system is used to perform a first detection on the pipe orifice condition of the main pipe and the pipe inside condition of the main pipe, a pipeline sonar detection system is used to perform a second detection on the pipe wall condition of the main pipe, and a three-dimensional data model of the pipeline is constructed by combining the first detected data and the second detected data; and scanning the interior of the pipeline by adopting a 3D scanning technology, constructing a 3D scanning data model, and correcting the constructed three-dimensional data model according to the 3D scanning data model.

By adopting the technical scheme, the QV camera detection system is suitable for detecting the conditions of the interior and the pipe orifice of the pipeline, the pipeline sonar detection system is suitable for detecting the pipe wall condition of the pipeline, the two detection modes are combined, the detection and data acquisition operation of the operation section is completed, and the detection accuracy is better; and a three-dimensional data model is constructed by combining the two detection data, so that the size precision and the processing quality of the pipeline lining preparation are improved. By means of the 3D scanning modeling technology, the three-dimensional data model is compared with the three-dimensional data model which is constructed according to the detection data, so that partial defects of the three-dimensional data model are corrected, and the processing quality of the pipeline lining is further improved.

The present invention in a preferred example may be further configured to: two ends of the pipeline lining should exceed the old pipeline by 20mm, in step S8, a stainless steel lining is embedded at two end openings of the new pipeline and sealed by a quick-setting resin adhesive, and a plastic lining is sandwiched between the outer wall of the stainless steel lining and the inner wall of the new pipeline.

By adopting the technical scheme, the stainless steel lining plays a role in closing the pipeline lining and the port of the old pipeline so as to form a smooth and uniform transition surface; and the plastic lining not only plays a role in protecting the pipeline lining, but also plays a role in supporting and stabilizing the stainless steel lining.

The present invention in a preferred example may be further configured to: the pipeline is characterized in that a branch pipe is communicated with the old pipeline before repair, a recess is formed in the communicated part of the old pipeline and the branch pipe after the stainless steel lining is fixed, and the CCTV camera detection system and the cutting repair robot are matched to find the recess and punch the communicated branch pipe and the new pipeline.

By adopting the technical scheme, when the pipeline lining is expanded and tightly attached to the inner wall of the main pipe, the communicated part of the old pipeline and the branch pipe naturally forms a slight recess, the CCTV camera detection system can identify and position the recess, and the hole is formed in the recess by the cutting repair robot, so that the aim of communicating the branch pipe and the new pipeline is fulfilled, the operation is simple and convenient, and the implementation is convenient.

The present invention in a preferred example may be further configured to: in step S2, the first cleaning operation is performed by high-pressure water cleaning using a high-pressure water cleaning vehicle, and the second cleaning operation is performed by cleaning the inner wall of the old pipe using a pig.

Through adopting above-mentioned technical scheme, the operation of once wasing utilizes the long-pending mud on the old pipeline inner wall of high pressure water washing, and the operation of wasing for the second time utilizes the deposit that the dredging pipe ware is difficult to clear up on the old pipeline inner wall, and two kinds of cleaning methods cooperate, are favorable to improving the cleaning operation effect of old pipeline.

The present invention in a preferred example may be further configured to: in step S3, the local repair process includes a polyurethane joint circumferential seam leak-stopping repair, a stainless steel lining and steel collar reinforced pipe repair, and a pipe local lining repair.

By adopting the technical scheme, the local point repair of the old pipeline, the reinforcement repair of the old pipeline and the leakage repair of the old pipeline are realized, so that the pulling-in curing operation of the pipeline lining is conveniently carried out.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the ultraviolet light curing pipeline lining repairing operation is to cure the pipeline lining on the inner wall of the old pipeline through ultraviolet light without replacing the old pipeline or excavating a road surface, thereby achieving the aim of repairing the municipal pipeline without excavating;

2. the ultraviolet curing pipeline lining repairing method has the advantages of small occupied construction area, low noise and small influence on roads;

3. the shrinkage of the pipe lining involved in the ultraviolet curing repair method is small after hardening, so that the hardened pipe lining cannot be dislocated at the position of the pipe orifice of the old pipe, and the molding stabilization time is short;

4. an inner membrane is arranged on the pipeline inner liner and can be removed after construction, so that the wall of the new pipeline with the inner membrane removed is smooth, the sediment attachment is reduced, and the water flow rate is improved;

5. the pipeline lining is durable and practical, the material strength is high, the pipeline lining has the advantages of corrosion resistance, abrasion resistance and the like, and the longest service life can reach 30 years.

Drawings

FIG. 1 is a block flow diagram of a UV light curing pipe repair method;

FIG. 2 is a block flow diagram of a method of preparing a pipe liner;

FIG. 3 is a schematic cross-sectional view of a pipe liner.

In the figure, 1, a fabric layer; 2. a thin film layer; 3. a rubber layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A ultraviolet light curing pipeline repairing method comprises the steps that constructors firstly need to determine the position and specific data of an old pipeline, prepare a pipeline lining and then carry out cleaning operation and detection operation on the old pipeline, so that the inner wall of the old pipeline (hereinafter referred to as a main pipe) and the inner condition of the main pipe meet construction requirements; then, curing the pipeline liner (hereinafter referred to as a hose) soaked with the ultraviolet curing resin and the mother pipe to form an integrated pipe-in-pipe structure; and finally, detecting, accepting and repairing the new pipeline (namely the pipe-in-pipe structure formed by the hose and the main pipe) and recovering the road surface, thereby completing the pipeline repairing operation. The pipeline repairing method of the ultraviolet curing pipeline lining does not need to excavate the road surface, does not block the traffic, and has good social benefit and economic benefit.

As shown in fig. 1, the following is explained with specific steps:

s1 test survey: before the pipeline repairing design of the ultraviolet light curing pipeline lining is carried out, the attributes and the conditions of an old pipeline are firstly investigated and detected, the pipe wall structure and the actual conditions in the pipe of the old pipeline are subjected to image detection, a design scheme, main pipe data and the like are sent to a hose processing plant, and the hose of the hose processing plant and a spare hose with the same specification are used.

S1.1, when the pipe diameter is smaller than 1000mm, a constructor can perform first detection on the pipe orifice condition of the main pipe and the pipe inside condition of the main pipe through a QV (quantum-Va) camera detection system and perform second detection on the pipe wall condition of the main pipe and the pipe inside condition at the deep part of the main pipe through a pipeline sonar detection system; and finally, integrating the detection results of the two times, data information and the like to formulate a pipeline repairing scheme.

As shown in the combined drawings of FIG. 1 and FIG. 2, the QV camera detection system comprises a QV camera detector and a QV camera imaging analyzer, and constructors can select different light source environments (a backlight, a high beam and a single light source) through the QV camera detector to adapt to different internal environments of the main pipe and clearly display the internal environments on the QV camera imaging analyzer. Because of the QV camera detector is fixed at the end of the detection rod, the QV camera detector can not stretch into the inner depth of the main pipe to take a picture, and is only suitable for detecting the pipe orifice of the main pipe and the condition of the shallower position in the pipe.

As shown in the combination of FIG. 1 and FIG. 2, when the water amount in the main pipe is large, the QV camera detection system is difficult to realize clear imaging detection, and at the moment, the pipeline sonar detection system is needed to detect the deep condition of the pipeline and the condition of the inner wall of the pipeline. The pipeline sonar detection system is mainly used for detecting the mud accumulation condition in the pipeline and whether a large protrusion or damage exists on the inner wall of the pipeline.

Referring to fig. 1 and 2, data obtained by the first detection performed by the QV camera system is a first group of data, data obtained by the second detection performed by the pipe sonar detection system is a second group of data, and the first group of data and the second group of data are combined and then a three-dimensional data model of the pipe is constructed by using three-dimensional software. The operator also needs to perform three-dimensional scanning on the interior of the pipeline by using a 3D scanner, that is, a 3D scanning data model of the internal structure of the pipeline is constructed by using a three-dimensional scanning technology, and the defects in the three-dimensional data model are corrected by comparing the three-dimensional data model with the 3D scanning data model.

As shown in fig. 3, the size information of the pipe lining is calculated according to the data information in the corrected three-dimensional data model, and the pipeline lining is prepared by molding according to the size information, the pipeline lining is formed by molding a fabric layer 1, a film layer 2 and a rubber layer 3, the fabric layer 1 is a hose structure layer, the film layer 2 is made of wear-resistant and tensile materials such as polyurethane and the like, the rubber layer 3 is formed by mixing or copolymerizing super absorbent resin and water-insoluble rubber, the film layer 2 and the rubber layer 3 are respectively positioned at two sides of the fabric layer 1, one sides of the fabric layer 1 and the film layer 22 are impregnated with thermosetting resin, when the inner lining of the pipeline is laid in the repaired pipeline, the rubber layer 3 needs to be directly attached to the inner wall of the pipeline, when a gap exists between the rubber layer and the rubber layer, the water on the pipe wall can be combined with the rubber layer 3, and the rubber layer 3 expands to fill up tiny defects on the inner wall of the pipeline.

S1.2 when the pipe diameter is greater than or equal to 1000mm, constructors can go down into the main pipe along with the CCTV camera detection system of the pipeline, and the pipe wall condition of the main pipe and the internal condition of the main pipe are detected.

And (3) combining S2 ventilation cleaning and S3 cleaning detection: in order to obtain accurate data of the main pipe in step S1, it is necessary to block both ends of the main pipe to cut off the flow of water, thereby obtaining clear image information; if the normal use of the original pipeline system needs to be maintained, the external adjacent pipe can be connected to replace a main pipe to realize the smoothness of the original pipeline system. Before detection, the gas in the main pipe needs to be checked and evaluated, if harmful gas or standard exceeding phenomenon is found, physical and chemical methods such as air exchange and air dilution need to be adopted for processing, after the processing is finished, the gas in the pipeline is checked and evaluated again, and cleaning detection operation can be carried out after the safety is determined.

S2.1, after the ventilation plugging operation is completed, a constructor carries out a first cleaning operation, namely, a high-pressure water cleaning vehicle is used for washing accumulated mud in the main pipe;

s2.2, when the inner wall of the pipeline is seriously scaled, scaling substances and sediments attached to the inner wall can be thoroughly removed through the main pipe at a low speed by a pipe cleaner, so that the second cleaning operation is completed; and residual water and residues in the pipeline can be discharged out of the main pipe through the plunger, so that the cleaning operation of the main pipe is completed.

After the cleaning operation is completed, constructors need to adopt a CCTV camera detection system to detect the inner wall of the main pipe for the first time so as to confirm that the inside of the main pipe reaches the lining repairing condition after cleaning, namely, the inside of the pipeline is required to be free from collapse, the inner wall of the pipeline is free from sharp protrusions exceeding 10mm, the axial curvature of the pipeline is less than 30 degrees, and the staggered opening of the pipeline is less than 20 mm.

It should be noted that, when the main pipe has serious water leakage, damage or cracking, the local repair process is required before the construction operation, and then the hose construction operation is required. The local repair treatment comprises the steps of leaking stoppage and repair of a polyurethane interface circular seam, repair of a stainless steel lining and a steel bushing reinforced pipeline and repair of a local lining of the pipeline.

The three repair methods are all common technical means, and the following three methods are briefly described: 1. the polyurethane interface circumferential weld leaking stoppage is repaired, and the polyurethane leaking stoppage is repaired on the pipeline interface aiming at the leakage defect of the pipeline interface so as to achieve the effect of no leakage; 2. the stainless steel lining and the steel collar reinforce the pipeline to repair, and play a role in increasing the bearing capacity of the pipeline and prolonging the service life of the pipeline aiming at the conditions of slight dislocation and disjunction of the pipeline interface and insufficient bearing capacity in the pipeline; 3. repairing the local lining of the pipeline, and repairing the local point position of the pipeline by matching the glass fiber pipe soaked with resin with the pipeline repairing device.

S4 pull-in operation, S5 inflation operation, and S6 curing operation in combination:

the constructor adopts a special refrigerator car to transport the hose to a construction site, and the temperature in the refrigerator needs to be kept between 4 ℃ and 17 ℃; after the hose is transported to a construction site, the storage temperature of the site needs to be kept between 7 ℃ and 25 ℃ so that the light-cured resin soaked by the hose is not cured.

Before the hose is pulled into the main pipe, protective pad films need to be laid in the main pipe and the operation well, so that the hose is prevented from being directly contacted with the inner wall of the pipeline, and the hose is protected; and the two ends of the protective pad film should exceed the corresponding ends of the main pipe and be fixed by pressing strips and the like. The constructor pulls the hose into the main pipe and folds the hose on a protective pad film in the main pipe through the matching of the steel wire rope and the traction equipment, and the traction speed of the traction equipment needs to be controlled in the pulling process so that the hose can enter the main pipe and the operation well at a low speed, and then the hose is fixedly erected through a fixing ring arranged at the wellhead of the operation well.

The constructor carries out inflation operation, firstly installs the tying head and the tying head bag at the two ends of the hose, the tying head bag plays a role in limiting the transition expansion of the exposed part of the hose during inflation, and then is connected with the tying head through an air compressor or a blast device so as to inflate the hose. The inflation operation comprises two stages, the pressure in the hose is required to be between 0.02 and 0.03MPa and kept for 40min during the first inflation, and the function of primarily expanding the round hose is achieved; the pressure value in the hose is required to be increased to the final pressure value during the second inflation and the pressure value is always kept until the hose is cured, the final pressure value is determined by the inner diameter of the main pipe, but the final pressure value is required to be ensured to be larger than the pressure value during the first inflation, so that the hose is fully expanded and attached to the inner wall of the main pipe fully.

In the operation of the ultraviolet curing hose, constructors need to select a proper curing operation mode according to the actual length of the main pipe and the actual requirements of field construction, and one mode is to cure the hose through a single ultraviolet lamp, namely the single ultraviolet lamp slowly moves in the expanded round hose and cures the hose, so that the ultraviolet curing hose is suitable for repairing the main pipe with shorter length; the other type is that the hose is cured by matching a plurality of groups of ultraviolet lamps, namely, the ultraviolet lamps are sequentially arranged in the hose after the expansion circle at intervals and do reciprocating linear motion, so that the curing operation efficiency is improved, and the hose is suitable for repairing a mother pipe with longer length.

The ultraviolet lamp is generally carried by an ultraviolet lamp trolley and moves along the hose, the running speed of the ultraviolet lamp is determined by the inner diameter of the main pipe, the wall thickness of the main pipe and the power of the ultraviolet lamp, the image system is attached to the ultraviolet lamp trolley, a constructor can observe the expansion of the hose through the image system, and if no problem exists, the ultraviolet light curing operation is continued; if the problem exists, the photocuring operation is stopped, and the secondary circle expanding operation of the hose is carried out, and in the secondary circle expanding operation, the pressure value in the hose needs to be slightly larger than the final pressure value, so that the part, which is not locally expanded, of the soft cloth is fully expanded.

S7 repair detection: after the hose and the female pipe are combined to form a new pipeline, a CCTV (television for television) camera detection system is required to be adopted to carry out secondary detection on the new pipeline so as to confirm that the new pipeline meets the use requirement, namely, the hose needs to be fully expanded and is fully attached to the inner wall of the female pipe, the hose and the female pipe are fully cured, and the pipe wall of the new pipeline is not damaged. If the requirement is not met, local pipeline repairing operation or even ultraviolet light secondary curing operation needs to be carried out on the damaged position of the new pipeline, so that the new pipeline meets the use requirement (whether the hose is fully attached to the main pipe or not, and detection and repair are carried out in the curing operation, see the above details).

And S8 post-processing: if the new pipeline meets the use requirement after detection, a constructor can pull out an inner membrane of the hose (the conventional step of ultraviolet curing pipeline lining repair is adopted for pulling out the inner membrane, and the details of the conventional steps such as pulling out the inner membrane can refer to the patent with the application publication number of CN 104633378A), cut the redundant part at the port of the new pipeline, and seal and reinforce the two ports of the new pipeline. In order to meet the requirement of reinforcement operation, after the hose is cut, the end part of the hose is 20mm beyond the corresponding end part of the main pipe, and a stainless steel lining and a plastic lining are adopted to reinforce the end part of the new pipeline, so that a smooth transition surface is formed at the port of the new pipeline; and the plastic lining is clamped between the inner wall of the main pipe and the outer wall of the hose, so that the functions of supporting, reinforcing a new pipeline and protecting the main pipe are achieved.

In actual operation, the main pipe may be communicated with the branch pipe originally, and then a new pipeline and the branch pipe need to be communicated again; after the hose is solidified and the stainless steel lining is reinforced, a recess is formed at the position where the main pipe is communicated with the branch pipe, so that a constructor can find the recess by matching the CCTV camera detection system with the cutting repair robot and open a new pipeline and the branch pipe. And finally, connecting the repaired new pipeline into the original pipeline by constructors, withdrawing relevant construction facilities, and recovering the inspection well and the operation well.

Meanwhile, a keeper needs to be arranged, the keeper randomly checks the service condition of the new pipeline in different time periods (the duration of the random check is 24-48 hours), namely, the CCTV camera detection system or the QV camera detection system is used for observation, so that the safety and the stability of the use of the new pipeline are ensured.

The present embodiment is further described below with reference to the overall flow of the ultraviolet light curing pipe repair method:

the method comprises the following steps that constructors firstly need to obtain attributes and data of a main pipe, detection operation of an operation section is completed through cooperation of a QV camera detection system, a pipeline sonar detection system and manual auxiliary operation, and the obtained data are sent to a hose processing factory to prepare a hose and a standby hose; then the air exchange operation is carried out on the main pipe, the cleaning operation of the main pipe is completed through the matching of the pipeline high-pressure cleaning vehicle and the plunger device, and after the cleaning operation is completed, the inner wall of the main pipe is detected through a CCTV (television coded television) camera detection system to confirm that the pipeline repairing condition is met. The hose is transported to a construction site and pulled into the main pipe, then primary inflation operation and secondary inflation operation are carried out, a single ultraviolet lamp curing hose or a plurality of groups of ultraviolet lamp curing hoses are selected according to the length of the main pipe, the surrounding construction environment condition and the progress, and meanwhile, the expansion circle detection is carried out to judge whether secondary expansion circle operation is needed. And after the solidification is finished, carrying out secondary detection on the inner wall of the repaired new pipeline by using the CCTV camera detection system again so as to confirm that the requirement of pipeline repair is met. If the detection is unqualified, constructors need to analyze the unqualified reason and make a treatment scheme; if the detection is qualified, the repaired new pipeline can be connected into the original pipeline, the related construction facilities are removed, and the inspection well and the operation well are recovered.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.