CN113187982B - Heating type non-excavation local repairing device for pipeline - Google Patents
Heating type non-excavation local repairing device for pipeline Download PDFInfo
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- CN113187982B CN113187982B CN202110557618.8A CN202110557618A CN113187982B CN 113187982 B CN113187982 B CN 113187982B CN 202110557618 A CN202110557618 A CN 202110557618A CN 113187982 B CN113187982 B CN 113187982B
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- pipeline
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- air bag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
- F16L55/1654—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section and being inflated
Abstract
This scheme belongs to pipeline repair technical field, concretely relates to adds hot type non-excavation local patching device for pipeline. Comprises a main body framework, an expansion part and a supporting roller; the expansion part and the supporting rollers are both installed on the main body framework, and the expansion part is communicated with a steam pipeline for introducing hot air and cold air and a gas pipeline for expanding and pressurizing the air bag. The surface of the middle expansion part is sleeved with a thermoplastic pipe which is used for repairing the pipeline and becomes soft after being heated. This scheme is earlier with compound nature tubular product heat softening then the solidification shaping of refrigerating, and this kind of mode of moulding is moulded to heat makes the laminating that compound nature tubular product can be inseparable on the pipeline, and is more firm difficult for dropping, and repair effect is good, and compound nature tubular product is corrosion-resistant, long service life simultaneously.
Description
Technical Field
This scheme belongs to pipeline repair technical field, concretely relates to adds hot type non-excavation local patching device for pipeline.
Background
Generally, a sewage pipeline buried underground is aged and is subjected to the phenomenon of cracking due to the extrusion force of ground subsidence or the pressure from the ground, so that sewage or wastewater in the sewage pipeline flows out through cracks or falling parts to pollute soil, and at the moment, if the whole pipeline is dug out for replacement, time and labor are consumed. Therefore, there is an urgent need for a trenchless local repair device for pipelines.
The Chinese patent with the application number of 201320192577.8 discloses a non-excavation type local repairing device for a pipeline, which comprises a cylindrical inner pipe, an upper connecting plate, a lower connecting plate and an expansion part, wherein an inflation space is arranged between the inner diameter and the outer diameter of the cylindrical expansion part, the upper end and the lower end of the inner pipe are respectively fixedly connected with the annular upper connecting plate and the annular lower connecting plate, the expansion part is sleeved outside the inner pipe, and an inflation hole communicated with the inflation space is arranged on the expansion part; after the composite material for repairing the pipeline, which is sleeved on the surface of the expansion part, is brought into the pipeline, the expansion part is inflated by using the air pump, and the composite material for repairing the pipeline, which is arranged on the surface of the expansion part, is expanded and then is adhered to the damaged part of the pipeline, so that the non-excavation type local repairing of the pipeline is realized.
Although the method does not need to dig the road surface, the repairing method is that the composite material for repairing the pipeline is expanded and then is adhered to the damaged part of the pipeline, and then the expanded part is removed. However, after the expansion part is removed, the composite material for repairing the pipeline is subjected to self deformation restoring force and can automatically get close to the middle, so that the diameter of the composite material for repairing the pipeline is reduced, the sticking effect is poor, or the composite material for repairing the pipeline automatically falls off.
Disclosure of Invention
This scheme provides a add hot type non-excavation local patching device for pipeline to it easily causes the automatic problem that drops of combined material for pipeline restoration to equip the restoration water pipe at present to adopt the mode of pasting to solve.
In order to achieve the aim, the scheme provides a heating type trenchless local repairing device for a pipeline, which comprises a main body framework, an expansion part and a supporting roller; the expansion part and the supporting roller are both arranged on the main body framework, and the expansion part is communicated with a steam pipeline for introducing steam and normal warm and cold air.
The principle of the scheme is as follows: the device is firstly sent into the pipeline to be repaired, the pipeline repairing material is sleeved on the expansion component, then steam is introduced between the pipeline repairing material and the pipeline to be repaired through a steam introducing pipeline, the pipeline repairing material and the pipeline to be repaired are heated by the steam, after the heating is completed, the expansion component is started, the expansion component expands to closely attach the heating and softening pipeline repairing material to the heating and softening pipeline fracture part, then normal-temperature cold air is introduced through the steam introducing pipeline, the thermoplastic formed repaired pipe is rapidly cooled, and the curing and shaping are realized. The inflatable member is then deflated and the fitting is then pulled out of the conduit.
The beneficial effect of this scheme does:
1. this scheme is earlier with pipeline repair material heat softening then cold air solidification shaping, and the fashioned mode of this kind of heat is moulded makes the laminating that pipeline repair material can be inseparable on the pipeline, and is more firm difficult for dropping, and repair effect is good.
2. The method is convenient and simple to operate, short in repair time and free from the influence of construction environment and construction time limit.
3. The repaired pipeline wall is smooth, the water flow passing through the repaired pipeline wall can be increased, the internal circulation of the pipe cannot be influenced, and the blockage of the water pipe cannot be caused.
Furthermore, the surface of the expansion part is sleeved with a thermoplastic pipe which is used for repairing the pipeline and becomes soft after being heated. The thermoplastic pipe is corrosion resistant, has long service life, does not generate property in the process of heating, softening and cold curing and forming, does not pollute the environment, and has good environmental protection effect.
Further, the expansion part comprises two closed air bags and two repair air bags, and the two closed air bags are respectively arranged at two ends of the repair air bags; the steam-filling device is characterized by further comprising two ventilating pipes for pressurizing and ventilating, wherein one ventilating pipe is communicated with the closed air bag, the other ventilating pipe is communicated with the repairing air bag, the steam-filling pipe is arranged on any one closed air bag and fixed on the main body framework, an outlet of the steam-filling pipe is located between the closed air bag, the composite plastic pipe and a cavity formed by the pipeline to be repaired, and the composite plastic pipe is sleeved on the repairing air bag. The method comprises the steps of firstly inflating closed air bags at two ends through a vent pipe line to seal the closed air bags and a pipeline to be repaired to form a local heating bin, then introducing steam into the heating bin through a steam pipeline, namely introducing steam between a composite plastic pipe and the pipeline to be repaired to heat the composite plastic pipe and the pipeline to be repaired, then inflating the repairing air bags through the vent pipe line to enable the repairing air bags to expand to enable the composite plastic pipe which is heated and softened to be tightly attached to the part to be repaired of the pipeline which is heated and softened, and then introducing normal-temperature cold air into the heating bin through the steam pipeline to enable the repaired pipe which is subjected to thermoplastic molding at the moment to be rapidly cooled and solidified and shaped. And then the closed air bag and the repair air bag are decompressed, and the equipment is pulled out from the pipeline after the decompression. The pipeline to be repaired is repaired by the air bag, the operation is convenient and quick, the influence of time limit and environment is avoided, and the method has great practicability.
Further, the material of the air bag is heat-resistant and cold-resistant. And an overpressure relief valve is arranged on the air bag. The air bag is not damaged in high-temperature and low-temperature environments. When the pressure in the air bag exceeds a preset value, the pressure release valve of the air bag can be opened, and the air bag is prevented from bursting.
Further, still include the pipeline CCTV robot that is used for pulling prosthetic devices, pipeline CCTV robot and main part skeleton are connected. After the pipeline CCTV robot enters the pipeline, the broken pipeline can be positioned, the repairing device is pulled to the position, to be repaired, of the pipeline, after the pipeline CCTV robot finishes repairing, the pipeline fitting condition can be detected, and the repairing effect is qualified.
Furthermore, the number of the supporting rollers is four, and the four supporting rollers are respectively arranged at the front end of the main body framework and the rear end of the main body framework. So that the main framework is more stable when running.
Further, the diameter of the main framework part for supporting the air bag is adjustable. When pipelines with different diameters need to be repaired, the diameter of the supporting air bag part of the main body framework can be adjusted, so that the repairing material can be sleeved on the repairing air bag.
Further, the bracket of the roller can be folded. The roller bracket can be adjusted according to the diameter of the pipeline to ensure that the equipment runs smoothly in the pipeline.
Further, the time for introducing the steam is half an hour. The half hour time can make the pipeline repair material and the local pipeline with repair reach the softening standard, and the repair is firmer.
Further, the time period for introducing the normal-temperature cold air is fifteen minutes. Fifteen minutes can make the pipeline patching material solidify the shaping completely, the repairing effect is better.
Drawings
FIG. 1 is a schematic uninflated structural view of a repair balloon in accordance with an embodiment of the present invention.
FIG. 2 is a schematic representation of an uninflated configuration of a repair balloon in accordance with an embodiment of the present invention.
Fig. 3 is a left side view of an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
the reference numbers in the drawings of the specification include: the device comprises a main body framework 1, supporting rollers 2, a closed air bag 3, a repairing air bag 4, a pipeline 5 to be repaired, a composite plastic pipe 6, a vent pipeline 7, a steam pipeline 8, a pipeline CCTV robot 9, an overpressure relief valve 10 and a tool car 11.
The examples are substantially as shown in figures 1 to 3:
add hot type pipeline and use local patching device of non-excavation, including main part skeleton 1, gasbag, pipeline and supporting roller 2 fixed mounting are on main part skeleton 1, and the gasbag is including closing gasbag 3 and repairing gasbag 4, and closing gasbag 3 is equipped with two, and two closing gasbags 3 are established respectively at repairing gasbag 4 both ends.
The material of the air bag is high temperature resistant, is not easy to break under the high temperature environment, and has long service life.
The closed air bag 3 forms a closed space at the pipeline to be repaired after being inflated, and the space is heated and softened for repairing the pipeline material after being inflated with steam.
The composite plastic pipe 6 is sleeved on the repairing air bag 4, the composite plastic pipe 6 is high in fitting degree with the original pipe after being thermoplastic, and meanwhile, the composite plastic pipe is firmer and more reliable and has the advantages of no falling, corrosion resistance, long service life, corrosion resistance and the like.
The repairing air bag 4 has two functions, namely, the repairing air bag is used as a carrier for the composite plastic pipe 6 to enter the pipeline 5 to be repaired, and the air bag is pressurized and inflated to expand after the composite plastic pipe 6 is heated and softened, so that the composite plastic pipe 6 which is heated and softened is tightly attached to the pipeline to be repaired.
An overpressure relief valve 10 is arranged on the air bag. When the pressure in the air bag exceeds the preset value, the pressure release valve of the air bag can be opened, and the air bag is prevented from bursting. The diameter of the main framework 1 part for supporting the air bag can be adjusted. When pipes with different diameters need to be repaired, the diameter of the supporting air bag part of the main body framework 1 can be adjusted, so that the repairing material can be sleeved in the repairing air bag 4.
The pipeline comprises a vent pipe line 7 for ventilation and a steam pipeline 8 for steam ventilation, the vent pipe line 7 is provided with two, one vent pipe line 7 is communicated with the closed air bag 3, the other vent pipe line 7 is communicated with the repair air bag 4, the steam pipeline 8 is arranged on any one closed air bag 3, the steam pipeline 8 is fixed on the main body framework 1, the outlet of the steam pipeline 8 is positioned between the closed air bag 3, the composite plastic pipe 6 and a cavity formed by the pipeline 5 to be repaired, and the composite plastic pipe 6 is sleeved on the repair air bag 4.
The pipeline is a channel externally connected with the local repairing device, the device is connected with a tool car 11 special for heating and air-entrapping outside through a high-pressure hose, and the tool car 11 is provided with an electric heating boiler, a generator, an air compressor and other equipment to provide heat source and air for the pipeline thermoplastic forming repairing device.
The pipeline CCTV robot 9 is connected with the main body framework 1, and the pipeline CCTV robot 9 can pull the repairing device into the pipeline, position and detect the pipeline fitting condition.
The four supporting rollers 2 are respectively arranged at the front end of the main body framework 1 and the rear end of the main body framework 1. So that the main body frame 1 is more stable when driving. The support roller 2 is foldable. The support of the support rollers 2 can be adjusted according to the diameter of the pipe to ensure the smooth operation of the equipment in the pipe.
The method comprises the following specific operations:
firstly, cleaning sludge and pretreating a pipeline to be repaired, and formulating a pipeline repairing scheme according to the pipeline condition. Then according to the established repair scheme, the preheated composite plastic pipe is sleeved on the repair device on the ground and then is manually sent into the pipeline to be repaired. And the device is conveyed to the position to be repaired of the pipeline for positioning through the guidance of the CCTV robot.
After the positioning is finished, the closed air bags 3 at the two ends are inflated through the ventilation pipeline 7, the closed air bags 3 and the pipelines to be repaired are sealed, a local heating bin is formed, then steam is introduced into the heating bin through the ventilation pipeline 8, the steam heats the repaired pipelines and the pipelines to be repaired 5, the composite plastic pipes 6 and the local pipelines to be repaired can reach the softening standard after being introduced for half an hour, then the repaired air bags 4 are inflated through the ventilation pipeline 7, the repaired air bags 4 are expanded to enable the composite plastic pipes 6 which are heated and softened to be tightly attached to the pipelines to be repaired, normal-temperature cold air is introduced into the heating bin through the ventilation pipeline 8 for fifteen minutes, and the composite plastic pipes 6 which are subjected to thermoplastic molding at the moment are rapidly cooled, cured and shaped. The closing balloon 3 and the repairing balloon 4 are then deflated and the equipment is pulled out of the pipeline.
The standard production of the thermoplastic forming pipe section, the laminating technology is mature, the pipe section is firmly laminated, and the method is an excellent improved process technology for repairing the damaged part of the drainage pipeline at present.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The heating type trenchless local repairing device for the pipeline comprises a main body framework (1), an expansion component and a supporting roller (2); the method is characterized in that: the expansion component and the support roller (2) are both arranged on the main body framework (1), and the expansion component is communicated with a steam pipeline (8) for introducing steam and normal-temperature cold air;
the expansion part comprises two closed air bags (3) and two repairing air bags (4), wherein the two closed air bags (3) are respectively arranged at two ends of the repairing air bag (4); a composite plastic pipe (6) is sleeved on the repair air bag (4), and the composite plastic pipe (6) is softened after being heated and then is cooled, cured and shaped;
the air-permeable pipe is characterized by further comprising two air-permeable pipes (7) used for pressurization and ventilation, wherein one air-permeable pipe (7) is communicated with the closed air bag (3), the other air-permeable pipe (7) is communicated with the repair air bag (4), the air-permeable pipe (8) is arranged on any one closed air bag (3), the air-permeable pipe (8) is fixed on the main body framework (1), and the outlet of the air-permeable pipe (8) is located between the closed air bag (3), the composite plastic pipe (6) and a cavity formed by the pipeline (5) to be repaired.
2. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the material of gasbag is heat-resisting cold-resistant, be equipped with superpressure relief valve (10) on the gasbag.
3. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the pipeline CCTV robot system further comprises a pipeline CCTV robot (9) used for drawing the repairing device, and the pipeline CCTV robot (9) is connected with the main body framework (1).
4. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the number of the supporting rollers (2) is four, and the four supporting rollers are respectively arranged at the front end of the main body framework (1) and the rear end of the main body framework (1).
5. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the diameter of the main body framework (1) for supporting the air bag is adjustable.
6. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the support of the roller can be folded.
7. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the time for introducing the steam is half an hour.
8. A trenchless spot repairing apparatus for a heated pipe as claimed in claim 1 wherein: the time period for introducing the normal-temperature cold air is fifteen minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557618.8A CN113187982B (en) | 2021-05-21 | 2021-05-21 | Heating type non-excavation local repairing device for pipeline |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110557618.8A CN113187982B (en) | 2021-05-21 | 2021-05-21 | Heating type non-excavation local repairing device for pipeline |
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| CN113187982A CN113187982A (en) | 2021-07-30 |
| CN113187982B true CN113187982B (en) | 2022-08-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458857B (en) * | 2022-02-22 | 2023-12-19 | 泰州市明新建设工程有限公司 | Pipeline non-excavation repairing device and repairing method |
| CN116852700B (en) * | 2023-09-01 | 2023-12-05 | 江苏英斯坦福环境科技有限公司 | Thermoplastic pipe flanging device for pipeline repair |
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| CN209557882U (en) * | 2018-11-14 | 2019-10-29 | 北京北排建设有限公司 | A kind of thermoplastic shaping repairs the device of underground piping |
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