CN210023119U - Old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline - Google Patents
Old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline Download PDFInfo
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- CN210023119U CN210023119U CN201920641922.9U CN201920641922U CN210023119U CN 210023119 U CN210023119 U CN 210023119U CN 201920641922 U CN201920641922 U CN 201920641922U CN 210023119 U CN210023119 U CN 210023119U
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Abstract
The utility model relates to old pipeline inner wall cleaning equipment in the non-excavation restoration of old pipelines, which comprises a mechanical scraper and a pipeline cleaning diaphragm device; the mechanical scraper comprises a cylinder body, and a plurality of scraper components are arranged at different axial positions along the side wall of the cylinder body; the scraper component comprises a plurality of cutter heads with sawtooth-shaped end parts, which are distributed along the circumference, and the cutter heads are rotationally connected with corresponding fixed points on the cylinder wall and are connected with corresponding positions on the front cylinder wall through springs; the adjacent scraper components are staggered by a set angle in the circumferential direction; the cleaning tube membrane device comprises a long strip-shaped main body and a plurality of rubber rings which are fixed on the long strip-shaped main body and have set intervals, and the cleaning tube membrane device can be hung at the rear part of the mechanical scraper. The utility model discloses several kinds of clearance parts can mutual selection collocation, through surveying in advance, select different combination and process, make the clearance of old pipeline inner wall effectual, the clearance is convenient.
Description
Technical Field
The utility model relates to a dredging pipe equipment especially relates to an old pipeline inner wall cleaning equipment in the non-excavation restoration of old pipeline.
Background
At present, the trenchless repair technology of the old pipeline mainly comprises an insertion method (an inner insertion pipe method), a reducing inner lining repair method, a folding pipe (U-shaped) inner lining repair method and the like, the difficult point of any repair technology is cleaning of scaling, corrosion and dirt precipitation on the inner wall of the old pipeline, and the cleaning degree of the old pipeline also directly influences the quality and effect of the repair.
The cleaning technology for the inner wall of the old pipeline in the existing trenchless repairing technology is mainly characterized in that a foam ball, a sponge ball or a rubber ball is placed in the old pipeline, the foam ball, the sponge ball or the rubber ball is pressed to the other side from one side of the pipeline needing to be cleaned by utilizing the pressurization of an air compressor, and the pipeline cleaning effect is achieved. However, because of the long-time action of fluid in old pipelines, particularly metal pipelines, or the deposition and scaling of impurities carried by the fluid in the pipelines and attached to the inner walls, reactants are accumulated on the inner walls due to the corrosion action of some impurities on the inner walls of the pipelines, and the existing pipeline cleaning mode is not enough to clean the inner walls well.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an old pipeline inner wall cleaning equipment and method in the non-excavation restoration of old pipeline solves among the non-excavation repair technique old pipeline inner wall clearance and totally leads to repairing quality and the not good current situation of effect.
The utility model adopts the following technical proposal:
a cleaning device for the inner wall of an old pipeline in trenchless restoration of the old pipeline comprises a mechanical scraper 1 and a pipeline cleaning diaphragm device 2; the mechanical scraper 1 comprises a cylinder body, and a plurality of scraper assemblies are arranged at different axial positions along the side wall of the cylinder body; the scraper component comprises a plurality of cutter heads 101 with sawtooth-shaped end parts distributed along the circumference, wherein the cutter heads 101 are rotatably connected with corresponding fixed points on the cylinder wall and are connected with corresponding positions on the front cylinder wall through springs 102; the adjacent scraper components are staggered by a set angle in the circumferential direction; the pigging membrane device 2 comprises a long strip-shaped main body and a plurality of rubber leather rings 201 which are fixed on the long strip-shaped main body and have set intervals, and the pigging membrane device 2 can be hung at the rear part of the mechanical scraper 1.
Further, the pigging diaphragm device 2 is divided into two groups of diaphragm components in front and at the back, the outer diameters of the rubber leather rings of the outermost rubber leather rings of the two groups of diaphragm components are smaller, and the outer diameters of the other rubber leather rings 201 are larger and equal; the two groups of membrane assemblies have a set interval.
Further, the device also comprises a wire brush cleaner 3, wherein the wire brush cleaner 3 comprises a drill rod 302 and a wire brush 301 fixed outside the drill rod 302; wherein, the drill rod is hollow, the tail part is externally connected with a pressure water source, and the wall of the drill rod is provided with a water spray hole; the steel wire brush pipe cleaner 3 can be hung at the tail part of the mechanical scraper 1.
Furthermore, the pigging membrane device 2 can be hung at the rear of the wire brush cleaner 3.
Furthermore, the cutter head is in an L-shaped plate shape, one end of the cutter head is rotatably connected with a corresponding fixed point on the wall of the cylinder body, and the other end of the cutter head is provided with a saw-toothed cutting edge.
A pipe cleaning method of the equipment for cleaning the inner wall of the old pipeline in the trenchless restoration of the old pipeline comprises the following steps: s1, selecting a repairing length to excavate a head working pit and a tail working pit of a section to be repaired after determining the underground situation around the old pipeline; s2, the crawling robot is used for carrying the CCTV into the pipeline to be repaired, the condition of the inner wall of the pipeline is checked in advance, and the condition of the pipeline is evaluated after CCTV images are finished; and S3, connecting the cleaning equipment, pulling back by using a horizontal directional drill or a traction device, rotating in a matched manner, and pulling back and rotating the mechanical scraper 1 and the pigging film device 2 on the cleaning equipment.
Further, in step S3, the connected cleaning apparatus further includes a wire brush cleaner 3, and the drill rod of the wire brush cleaner 3 is wetted and cleaned by spraying water through the high-pressure water gun holes.
Further, in step S2, when the CCTV image situation reflects that the situation of the inner wall of the pipeline is poor, the cleaning device with the specification size 1-2 smaller than the pipe diameter is selected for the first cleaning in step S3 to prevent the pipe cleaner from being stuck by the protruding dirt or the foreign matter in the pipeline, and the mechanical scraper 1, the pipe cleaning diaphragm device 2 and the wire brush pipe cleaner 3 are combined during cleaning; and according to the degree of scaling, corrosion and dirt deposition in the pipeline, selecting one or more times of pipe cleaning until the impurities brought out by the pipe cleaning equipment are few; step S4: and carrying the CCTV by using a crawling robot to perform the rechecking of the pipe cleaning effect so as to confirm that the requirements of the subsequent pipeline repairing quality are met.
Furthermore, after step S4, a test pulling section pipeline is prefabricated, the test pulling pipeline is pulled back in a pulling back manner, and it is checked that the scratch degree of the pipeline surface after pulling back does not exceed the requirement of the specification.
The beneficial effects of the utility model reside in that:
1) by utilizing reasonable segmentation and CCTV image conditions, the pipe cleaner or the combination and the size of the pipe cleaner for the first pipe cleaning are reasonably selected, and the risk that the pipe cleaning device is blocked in the pipeline is well avoided.
2) For a steel pipeline, the inner wall of the pipeline is seriously corroded, a common pipe cleaner cannot effectively clean the inner wall, a mechanical scraper and a pipe cleaning diaphragm pipe cleaner which are 1-2 specification sizes smaller than the repaired pipe diameter are selected to be combined and cleaned, then a steel wire brush and the pipe cleaning diaphragm pipe cleaner which are the same in size as the repaired pipeline are combined and cleaned, finally, the pipe cleaning diaphragm (leather cup ball) pipe cleaner which is the same in size as the repaired pipeline is used for independently cleaning and seeing the condition of impurities, the cleaning effect is evaluated, and the pipe cleaning condition is rechecked by CCTV (China television for television). And the cleaned sewage and dirt are collected and treated to avoid environmental pollution.
3) The scraper that mechanical scraper pig adopted is furnished with the spring, guarantees that the pig does not destroy pipeline structure in the clearance process.
4) Three kinds of clearance parts can mutual selection collocation, through surveying in advance, selects different combination and process, makes the clearance of old pipeline inner wall effectual, and the clearance is convenient.
Drawings
Fig. 1 is a front view of a mechanical scraper in the cleaning equipment for the inner wall of an old pipeline in the trenchless restoration of the old pipeline.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a front view of the steel brush cleaner in the cleaning device for the inner wall of the old pipeline in the trenchless repair of the old pipeline.
Fig. 5 is a side view of fig. 4.
Fig. 6 is a front view of the pipe cleaning diaphragm device in the cleaning equipment for the inner wall of the old pipeline in the trenchless restoration of the old pipeline.
Fig. 7 is a side view of fig. 6.
Fig. 8 is a top view of fig. 7.
1. The device comprises a mechanical scraper, 2, a pipe cleaning diaphragm device, 3, a wire brush cleaner, 101, a cutter head, 102, a spring, 103, a traction plate, 104, a screw, 201, a rubber ring, 203, a traction plate II, 204, a screw II, 205, a wire rope hanging ring, 301, a wire brush and 302, a drill rod.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments,
referring to fig. 1-3 and fig. 6-8, an old pipeline inner wall cleaning device in old pipeline trenchless repair comprises a mechanical scraper 1 and a pipeline cleaning diaphragm device 2; the mechanical scraper 1 comprises a cylinder body, and a plurality of scraper assemblies are arranged at different axial positions along the side wall of the cylinder body; the scraper component comprises a plurality of cutter heads 101 with sawtooth-shaped end parts distributed along the circumference, wherein the cutter heads 101 are rotatably connected with corresponding fixed points on the cylinder wall and are connected with corresponding positions on the front cylinder wall through springs 102; the adjacent scraper components are staggered by a set angle in the circumferential direction; the pigging membrane device 2 comprises a long strip-shaped main body and a plurality of rubber leather rings 201 which are fixed on the long strip-shaped main body and have set intervals, the pigging membrane device 2 can be hung at the rear part of the mechanical scraper 1, and the pigging membrane device 2 can also be used after the mechanical scraper 1 is used.
Referring to fig. 7, the pigging diaphragm device 2 is divided into two sets of diaphragm assemblies in front and at the back, the outer diameters of the rubber rings of the outermost rubber rings of the two sets of diaphragm assemblies are smaller, and the outer diameters of the other rubber rings 201 are larger and equal; the two groups of membrane assemblies have a set interval.
Referring to fig. 4-5, the device further comprises a wire brush cleaner 3, wherein the wire brush cleaner 3 comprises a drill rod 302 and a wire brush 301 fixed outside the drill rod 302; wherein, the drill rod is hollow, the tail part is externally connected with a pressure water source, and the wall of the drill rod is provided with a water spray hole; the steel wire brush pipe cleaner 3 can be hung at the tail part of the mechanical scraper 1.
At the same time, the pig membrane device 2 can also be hung behind a wire brush pig 3, see fig. 7-8.
Referring to fig. 1-3, the cutter head is in an L-shaped plate shape, one end of the cutter head is rotatably connected with a corresponding fixed point on the wall of the cylinder body, and the other end of the cutter head is provided with a saw-toothed blade.
During implementation, the underground conditions around the old pipeline are determined, the repairing length is reasonably selected to excavate the head and the tail of two working pits of the section to be repaired, the old pipeline fluid is discharged in a replacement, isolation or protection mode, the old pipeline to be repaired is disconnected after the risk is determined to be absent, the crawling robot is used for carrying CCTV to enter the pipeline to be repaired, the condition of the inner wall of the pipeline is checked in advance, and the pipeline cleaner combination for evaluating the selection of the pipeline condition after CCTV images is completed. Then, a directional drilling rod or a traction device is penetrated from the soil-entering point in advance by utilizing a horizontal directional drilling machine or a winch and other traction equipment, the horizontal directional drilling machine is used for drawing to connect the drilling rods and transmit the drilling rods into a pipeline to be cleaned one by one, and the drilling rods are extended to the soil-exiting point of the tail working pit. Connect pig and drilling rod or draw gear well, utilize horizontal directional brill or draw gear to go back to drag and the cooperation is rotatory, because mechanical scraper 1 on the pig, wire brush pig 3, pigging diaphragm device 2 pull back and rotate and add the drilling rod on the high pressure water gun hole water spray and carry out moist and washing, reach the inside effect of clearance pipeline. When the situation of the inner wall of the pipeline is not good according to the CCTV image situation, a pipe cleaner with the specification size being 1-2 smaller than the pipe diameter is selected for the first cleaning, the pipe cleaner is prevented from being blocked by protruding dirt or foreign matters in the pipeline, the combination of three pipe cleaners is used for cleaning, one or more times of cleaning is selected according to the scaling, corrosion and dirt precipitation degree in the pipeline until the impurities brought out by the pipe cleaner are few, and finally, the crawling robot is used for carrying the CCTV to perform the cleaning effect rechecking so as to confirm that the quality requirements of subsequent pipeline repairing are met. And after CCTV reexamination, prefabricating a test dragging section pipeline, dragging the test dragging pipeline back in a back dragging mode, and checking that the scratch degree of the surface of the pipeline after the back dragging does not exceed the requirement of the specification. And finishing the cleaning process of the inner wall of the old pipeline.
Specific examples are as follows: for example, the pipeline with the inner diameter of 250mm is cleaned, and after CCTV inspection, if the corrosion of the inner wall is serious, the mechanical scraper 1 with the outer diameter of 150mm is selected to clean the pipeline, so that the scraper with the outer diameter of 150mm can pass through the pipeline smoothly. And (3) cleaning for the second time, namely, cleaning by combining a mechanical scraper 1 with the outer diameter of 200mm and a pipe cleaning membrane device 2 with the same diameter, scraping dirt and corrosion on the inner wall of the pipeline by the mechanical scraper, and cleaning out sundries by the pipe cleaning membrane device 2. And the third cleaning can be realized by combining a 250m mechanical scraper 1 with the same size as the cleaning pipeline in the outer diameter and a steel brush pipe cleaner 2 (a drill rod at the front end of the steel brush is provided with a high-pressure water outlet hole for spraying and cleaning stubborn dirt). And finally, cleaning, namely cleaning the pipe cleaning diaphragm device 2 with the same size as the repaired pipeline to independently inspect the condition of the impurities, evaluating the cleaning effect, and rechecking the pipe cleaning condition by using CCTV (China telecom Transformer) so as to ensure the optimal effect.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (5)
1. The utility model provides an old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline which characterized in that:
comprises a mechanical scraper (1) and a pigging membrane device (2);
the mechanical scraper (1) comprises a cylinder body, and a plurality of scraper components are arranged at different axial positions along the side wall of the cylinder body; the scraper component comprises a plurality of cutter heads (101) with sawtooth-shaped end parts, wherein the cutter heads (101) are distributed along the circumference, are rotatably connected with corresponding fixed points on the cylinder wall and are connected with corresponding positions on the front cylinder wall through springs (102); the adjacent scraper components are staggered by a set angle in the circumferential direction;
the cleaning tube membrane device (2) comprises a long strip-shaped main body and a plurality of rubber leather rings (201) which are fixed on the long strip-shaped main body and have set intervals, and the cleaning tube membrane device (2) can be hung at the rear part of the mechanical scraper (1).
2. The apparatus for cleaning the inner wall of the old pipeline in the trenchless rehabilitation of the old pipeline as claimed in claim 1, wherein: the pigging diaphragm device (2) is divided into two groups of diaphragm assemblies in front and at the back, the outer diameters of the rubber leather rings at the outermost sides of the two groups of diaphragm assemblies are smaller, and the outer diameters of the other rubber leather rings (201) are larger and equal; the two groups of membrane assemblies have a set interval.
3. The apparatus for cleaning the inner wall of the old pipeline in the trenchless rehabilitation of the old pipeline as claimed in claim 1, wherein: the device also comprises a wire brush cleaner (3), wherein the wire brush cleaner (3) comprises a drill rod (302) and a wire brush (301) fixed outside the drill rod (302); wherein, the drill rod is hollow, the tail part is externally connected with a pressure water source, and the wall of the drill rod is provided with a water spray hole; the steel wire brush pipe cleaner (3) can be hung at the tail of the mechanical scraper (1).
4. The apparatus for cleaning the inner wall of the old pipeline in the trenchless rehabilitation of the old pipeline as claimed in claim 3, wherein: the pigging membrane device (2) can be hung at the rear part of the steel brush pipe cleaner (3).
5. The apparatus for cleaning the inner wall of the old pipeline in the trenchless rehabilitation of the old pipeline as claimed in claim 1, wherein: the cutter head is in an L-shaped plate shape, one end of the cutter head is rotatably connected with a corresponding fixed point on the wall of the cylinder body, and the other end of the cutter head is provided with a saw-toothed cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920641922.9U CN210023119U (en) | 2019-05-07 | 2019-05-07 | Old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920641922.9U CN210023119U (en) | 2019-05-07 | 2019-05-07 | Old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline |
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| CN210023119U true CN210023119U (en) | 2020-02-07 |
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| CN201920641922.9U Active CN210023119U (en) | 2019-05-07 | 2019-05-07 | Old pipeline inner wall cleaning equipment in non-excavation restoration of old pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026395A (en) * | 2019-05-07 | 2019-07-19 | 港华燃气投资有限公司 | Old pipeline inner wall cleaning equipment and pigging method in old pipeline non-excavation rehabilitation |
| WO2021189527A1 (en) * | 2020-03-22 | 2021-09-30 | 成都信息工程大学 | Sea creature cleaning robot for intake tunnel for nuclear power plant |
| CN113510590A (en) * | 2021-08-10 | 2021-10-19 | 山东龙泉管道工程股份有限公司 | Repairing pretreatment device for metal water supply pipeline and using method |
-
2019
- 2019-05-07 CN CN201920641922.9U patent/CN210023119U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026395A (en) * | 2019-05-07 | 2019-07-19 | 港华燃气投资有限公司 | Old pipeline inner wall cleaning equipment and pigging method in old pipeline non-excavation rehabilitation |
| WO2021189527A1 (en) * | 2020-03-22 | 2021-09-30 | 成都信息工程大学 | Sea creature cleaning robot for intake tunnel for nuclear power plant |
| US11766704B2 (en) | 2020-03-22 | 2023-09-26 | Chengdu University Of Information Technology | Sea creature cleaning robot for intake tunnel for nuclear power plant |
| CN113510590A (en) * | 2021-08-10 | 2021-10-19 | 山东龙泉管道工程股份有限公司 | Repairing pretreatment device for metal water supply pipeline and using method |
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