CN113074290A - Non-excavation repairing system and repairing method for steel cylinder hanging net spraying mortar composite lining pipe - Google Patents
Non-excavation repairing system and repairing method for steel cylinder hanging net spraying mortar composite lining pipe Download PDFInfo
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- CN113074290A CN113074290A CN202110291121.6A CN202110291121A CN113074290A CN 113074290 A CN113074290 A CN 113074290A CN 202110291121 A CN202110291121 A CN 202110291121A CN 113074290 A CN113074290 A CN 113074290A
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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
- F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
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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
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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
- F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe
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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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
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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
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/40—Constructional aspects of the body
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/16—Coating by application of fluent materials, e.g. painting
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
- F16L2101/18—Lining other than coating
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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
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/60—Stopping leaks
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The application relates to the field of pipeline repair, in particular to a non-excavation repair system and a non-excavation repair method for a steel cylinder hanging net spraying mortar composite lining pipe, wherein the non-excavation repair system for the steel cylinder hanging net spraying mortar composite lining pipe comprises a rack, and a moving device, a coating device and a drying device are installed on the rack; the moving device is used for driving the rack to move inside the pipeline, the coating device is used for coating mortar on the pipeline and forming a mortar layer, the drying device is used for drying the mortar layer, and the coating device is located in front of the drying device along the moving direction. The non-excavation repairing method for the steel cylinder hanging net spraying mortar composite lining pipe is realized by adopting a non-excavation repairing system for the steel cylinder hanging net spraying mortar composite lining pipe, and the method has the effect of improving the construction quality of pipeline repairing operation.
Description
Technical Field
The application relates to the field of pipeline repair, in particular to a non-excavation repair system and a non-excavation repair method for a steel cylinder hanging net spraying mortar composite lining pipe.
Background
At present, China has a large number of large-diameter pressure water diversion pipelines, tap water main pipes, water conservancy culverts, pressure drain pipes, heat pipes and other pipelines, and the large-diameter pipelines are mostly reinforced concrete pipes and metal pipes. After long-time use, accidents such as leakage, pipe explosion and the like easily occur to the pipeline, and the pipeline needs to be repaired in time.
The large-diameter pipeline usually adopts the excavation restoration mode, because the pipe diameter is too big, excavate the soil horizon too much, the reason such as putting the slope too big leads to road excavation scale huge, and equipment, tubular product etc. area are too big in the work progress to lead to the paralysed and the stagnation of peripheral public facility of peripheral traffic. Based on the problems, the existing method for repairing the large-diameter pipeline mainly adopts a trenchless pipeline repairing technology. The pipeline is repaired by adopting a non-excavation technology, so that the service life of urban infrastructure is prolonged, the investment of the infrastructure is saved, the purposes of energy conservation and emission reduction are achieved, and the urban construction management is improved.
In the related trenchless repair technology for the large-diameter pipeline, mortar, a steel cylinder and a steel wire mesh are combined to form a composite lining for pipeline repair in a centrifugal spraying mode, the steel wire mesh is anchored on the inner wall of the steel cylinder in a welding mode, and the mortar, the steel cylinder and the steel wire mesh are covered and consolidated together in a centrifugal spraying mode again to form a lining repair structure of the pipeline.
In view of the above-mentioned related technologies, the inventor thinks that the mortar layer is formed on the inner wall of the pipeline by adopting a centrifugal spraying mode, the uniformity of the mortar layer is not easy to control, and the mortar layer is not easy to dry and set, and the phenomenon of sagging is easy to occur in the process of forming the mortar layer, thereby reducing the construction quality.
Disclosure of Invention
In order to improve the construction quality of pipeline repairing operation, the application provides a steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system and a repairing method.
In a first aspect, the application provides a non-excavation repair system for a steel cylinder hanging net spraying mortar composite lining pipe, which adopts the following technical scheme:
the non-excavation repair system for the steel cylinder hanging net spraying mortar composite lining pipe comprises a rack, wherein a moving device, a coating device and a drying device are installed on the rack;
the moving device is used for driving the rack to move inside the pipeline, the coating device is used for coating mortar on the pipeline and forming a mortar layer, the drying device is used for drying the mortar layer, and the coating device is located in front of the drying device along the moving direction.
Through adopting above-mentioned technical scheme, when needs form the mortar layer at the pipeline inner wall, under mobile device's drive, can remove the frame to the inside position department of waiting to restore of pipeline, then utilize coating device to pipeline inner wall coating mortar to make the pipeline inner wall be formed with the mortar layer, adopt the mode of coating to form the mortar layer at the pipeline inner wall, be more convenient for control the coating position on mortar layer and improve the degree of consistency on mortar layer. Meanwhile, drying device can carry out the stoving operation to the mortar layer of coating at pipeline inner wall, because the coating device lies in drying device's the place ahead along the moving direction, after coating device coating mortar promptly, drying device in time dries the mortar layer again, guarantees that mortar coating operation goes on in order, and more importantly can in time dry the mortar layer for the phenomenon is hung to the difficult sagging that appears in mortar layer, improves the quality on mortar layer, and then improves the construction quality of pipeline repair operation.
Optionally, the coating device comprises a coating roller, a driving member for driving the coating roller to rotate, and a feeding assembly for providing mortar for the coating roller, the driving member is mounted on the frame, the output end of the driving member is coaxially and fixedly arranged with the coating roller, the coating roller is in contact with the inner wall of the pipeline, and the feeding assembly is mounted on the frame.
Through adopting above-mentioned technical scheme, the pay-off subassembly is for applying paint the roller with a brush and constantly provide mortar material, and under the drive of driving piece, it rotates to apply paint the roller with a brush to can apply paint mortar material with a brush to the pipeline inner wall, in order to accomplish the mortar coating operation to the pipeline inner wall, and adopts the mode of applying paint with a brush, can evenly coat mortar material on the pipeline inner wall, and the mortar material is difficult for appearing the sagging phenomenon like this.
Optionally, the pay-off subassembly includes storage case, conveying pipeline, feeding pump and shower nozzle, the storage case is installed in the frame, the feeding pump is installed in the storage case, storage case and shower nozzle are connected respectively to the both ends of conveying pipeline, the brush roll is scribbled to the shower nozzle orientation.
Through adopting above-mentioned technical scheme, store mortar material in the storage box temporarily, under the effect of conveying pump, carry the mortar in the storage box to the shower nozzle through the conveying pipeline, the shower nozzle spouts mortar material to scribble on the brush roll to the completion is to scribbling the pay-off operation of brush roll.
Optionally, the outer surface of the brushing roller is provided with bristles, and the bristles are in contact with the inner wall of the pipeline.
By adopting the technical scheme, the brushing bristles are utilized to brush the mortar material on the inner wall of the pipeline, so that the brushing uniformity and the brushing effect on the inner wall of the pipeline can be improved.
Optionally, the drying device includes a fan and a ventilation sleeve, the fan is installed outside the pipeline, the ventilation sleeve is arranged in the pipeline, one end of the ventilation sleeve is sleeved on the fan, the other end of the ventilation sleeve is connected with the coating roller, and the ventilation hole is formed in the ventilation sleeve.
Through adopting above-mentioned technical scheme, the manual work outside the pipeline with the both ends of ventilation cover respectively with the fan with apply paint the roller with a brush and be connected the back, under the start-up of fan, for the ventilation cover provides the wind regime, wind in the ventilation cover blows to the pipeline inside from the ventilation hole to weather the mortar of pipeline inner wall, and then make the difficult sagging phenomenon that appears of mortar layer, improve the quality on mortar layer, and then improve the construction quality of pipeline restoration operation.
Optionally, the brush roller is provided with a bearing, the brush roller is fixedly connected with an outer ring of the bearing, the ventilation sleeve is provided with a connecting piece, and the connecting piece is fixedly connected with an inner ring of the bearing.
Through adopting above-mentioned technical scheme, when scribbling the brush roller and rotate under the effect of driving piece, utilize the bearing to make the ventilation cover can not follow and scribble the brush roller and rotate to make the difficult torsional problem that produces of ventilation cover.
Optionally, the moving device includes a connecting rod and a roller, the roller is rotatably mounted at one end of the connecting rod, which is far away from the roller, is connected with the frame, and the roller is in sliding contact with the inner wall of the pipeline.
Through adopting above-mentioned technical scheme, utilize the gyro wheel to assist and drive the removal of whole steel cylinder string net spraying mortar compound lining pipe non-excavation repair system in the pipeline, can alleviate the manpower, facilitate for the construction.
In a second aspect, the application provides a trenchless repairing method for a steel cylinder hanging net spraying mortar composite lining pipe, which adopts the following technical scheme:
the non-excavation repair method of the steel cylinder hanging net spraying mortar composite lining pipe is realized by the non-excavation repair system of the steel cylinder hanging net spraying mortar composite lining pipe, and comprises the following steps:
the method comprises the following steps: coating mortar on the inner wall of the cleaned old pipeline by using a coating device, and performing mortar priming on the inner wall of the pipeline to form a mortar layer so as to round the inner wall of the pipeline;
step two: drying the mortar on the inner wall of the pipeline by using a drying device;
step three: pre-processing the inner diameter of an old pipeline repaired by steel plates according to requirements into a section of pipe blank;
step four: feeding the pipe blank into a preset position in the old pipeline, expanding the pipe blank to ensure that the outer surface of the pipe blank is tightly attached to the mortar bottoming, and welding and closing the expanded pipe blank to form a complete section of steel cylinder section; welding and connecting the sections of the steel cylinder sections along the length direction of the pipeline to form a whole continuous steel cylinder pipeline, and installing the whole continuous steel cylinder pipeline in place;
step five: welding and anchoring the steel wire mesh to the inner wall of the steel cylinder pipeline;
step six: and uniformly coating mortar on the inner surfaces of the steel wire mesh and the steel cylinder pipeline by using the coating device again to form a uniform and flat steel wire mesh reinforced mortar layer, so that the pipeline is repaired.
By adopting the technical scheme, the mortar is firstly adopted in the pipeline for bottoming, the binding force between the follow-up steel pipe and the steel wire mesh and the interior of the pipeline is improved, the repair construction quality is improved, after the mortar is bottomed, the drying device is adopted for air-drying the mortar on the inner wall of the pipeline in time, the construction efficiency can be improved, more importantly, the problem of sagging phenomenon of the mortar in the drying and shaping process can be improved, and the construction quality is improved.
Optionally, in the second step, hot air is firstly adopted for air drying. And then air-drying by cold air.
By adopting the technical scheme, the drying and shaping speed of the mortar is further improved by adopting hot air firstly, and then the temperature change of the heated pipeline is buffered by adopting cold air, so that the mortar is not easy to crack.
Optionally, the temperature of the hot air is 35-50 ℃, and the temperature of the cold air is 10-30 ℃.
By adopting the technical scheme, the temperature range is not easy to cause overheating or supercooling to the mortar, so that the quality is not influenced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the mortar layer is formed on the inner wall of the pipeline in a coating mode, so that the coating position of the mortar layer is more conveniently controlled, and the uniformity of the mortar layer is improved;
2. adopt drying device to dry the operation in the mortar layer of coating at pipeline inner wall, behind the coating device coating mortar, drying device in time dries the mortar layer again, can in time dry the mortar layer for the mortar layer is difficult for appearing the sagging phenomenon, improves the quality on mortar layer, and then improves the construction quality of pipeline restoration operation.
Drawings
Fig. 1 is a schematic structural view of a steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system in the embodiment of the application.
Fig. 2 is a schematic structural diagram of a removing and drying device in a steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system in the embodiment of the application.
Description of reference numerals: 1. a frame; 2. a mobile device; 3. a coating device; 4. a drying device; 21. a connecting rod; 22. a roller; 31. a brushing roller; 32. a drive member; 33. a feeding assembly; 5. brushing; 331. a material storage box; 332. a delivery pipe; 333. a spray head; 41. a fan; 42. a ventilation sleeve; 6. a vent hole; 7. a bearing; 8. a mortar layer; 9. a steel cylinder pipe; 10. steel wire mesh; 11. reinforcing the mortar layer; 12. a pipeline.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a non-excavation repair system for steel cylinder hanging net spraying mortar composite lining pipe.
Referring to fig. 1, the steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system comprises a rack 1, a moving device 2, a coating device 3 and a drying device 4. When using the compound interior bushing pipe non-excavation repair system of steel cylinder hanging net spraying mortar, operating personnel can drive frame 1 through mobile device 2 and remove in needs prosthetic pipeline 12, carries out the mortar coating through coating device 3 to the inner wall of pipeline 12 afterwards in order to form mortar layer 8, utilizes drying device 4 to dry mortar layer 8 simultaneously.
Referring to fig. 1, in particular, a frame 1 is substantially in a rectangular parallelepiped shape, and the frame 1 serves to support and mount a moving device 2, a coating device 3, and a drying device 4. The moving device 2 comprises a connecting rod 21 and a roller 22, one end of the connecting rod 21 is fixedly connected with the rack 1, the other end of the connecting rod 21 is used for installing the roller 22, the roller 22 is rotatably connected with the connecting rod 21, and when the steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system moves, the roller 22 is in sliding contact with the inner wall of the pipeline 12 and rolls. In the present embodiment, the number of the moving devices 2 is eight, and the eight moving devices 2 are uniformly distributed around the frame 1. Through setting up eight mobile device 2, the non-excavation repair system of bushing pipe in the steel cylinder is hung net spraying mortar complex just can slide in pipeline 12 with comparatively stable state when removing, carries out the restoration operation to pipeline 12 inner wall then, facilitates for the construction.
Referring to fig. 2, the coating device 3 is mounted on the frame 1, and the coating device 3 includes a coating roller 31, a driving member 32, and a feeding member 33, wherein the driving member 32 is used for driving the coating roller 31 to rotate when the coating device 3 is operated, and the feeding member 33 is used for supplying mortar to the coating roller 31. Specifically, the driving member 32 is a motor, the driving member 32 is installed in the frame 1, the brushing roller 31 is in a flat cylindrical shape, an output shaft of the driving member 32 is coaxially and fixedly arranged with the brushing roller 31, and an outer surface of the brushing roller 31 is in contact with an inner wall of the pipeline 12. In order to more uniformly coat the inner wall of the pipeline 12, the outer surface of the brushing roller 31 is provided with the plurality of bristles 5, the plurality of bristles 5 are uniformly arranged along the circumferential direction of the outer contour of the brushing roller 31, and by arranging the plurality of bristles 5, when the brushing roller 31 is driven to rotate by the driving part 32, the plurality of bristles 5 can rotate along with the rotation of the brushing roller 31, and the plurality of bristles 5 can contact with the inner wall of the pipeline 12, so that the inner wall of the pipeline 12 is coated.
Referring to fig. 2, the feeding assembly 33 is mounted on the frame 1, the feeding assembly 33 includes a storage box 331, a material delivery pipe 332, a material delivery pump (not shown in the figure) and a nozzle 333, the storage box 331 is mounted in the frame 1, mortar is stored in the storage box 331, the material delivery pump is mounted in the storage box 331, two ends of the material delivery pipe 332 are respectively connected to the storage box 331 and the nozzle 333, the nozzle 333 faces the painting roller 31, under the action of the material delivery pump, mortar in the storage box 331 is delivered to the nozzle 333 through the material delivery pipe 332, and the nozzle 333 sprays the mortar onto the painting roller 31. It should be noted that the nozzle 333 does not contact the applying roller 31, so that the nozzle 333 does not interfere with the applying roller 31 during the rotational applying of the applying roller 31, and the bristles 5 on the applying roller 31 can be uniformly sprayed. In this embodiment, the number of the feeding assemblies 33 is two, and the two feeding assemblies 33 are arranged opposite to each other.
In addition, referring back to fig. 1, coating device 3 is located drying device 4's the place ahead along repair system's moving direction, coating device 3 coating mortar after, drying device 4 is in time dried mortar layer 8 again, guarantees that the mortar coating operation goes on in order, and more importantly can in time dry mortar layer 8 for the phenomenon is hung to difficult appearance sagging in mortar layer 8, improves mortar layer 8's quality, and then improves the construction quality of pipeline 12 restoration operation.
Referring to fig. 1, drying device 4 includes fan 41 and with ventilation cover 42, fan 41 installs outside pipeline 12, ventilation cover 42 sets up in pipeline 12, the fixed cover of one end of ventilation cover 42 is established on fan 41, the other end and the brush roller 31 of ventilation cover 42 are connected, ventilation hole 6 has been seted up on ventilation cover 42, the quantity of ventilation hole 6 is a plurality of, and a plurality of ventilation hole 6 evenly distributed is on ventilation cover 42, it is worth noting, all ventilation holes 6 all are located pipeline 12. Under the action of the fan 41, the air in the ventilation sleeve 42 is blown to the interior of the pipeline 12 from the ventilation hole 6, so that the mortar on the inner wall of the pipeline 12 is dried. The specific connection mode of the ventilation sleeve 42 to the brushing roller 31 is as follows: install bearing 7 on the brush roller 31, brush the outer lane fixed connection of roller 31 and bearing 7, install the connecting piece on the ventilation cover 42, the inner circle fixed connection of connecting piece and bearing 7, when brush roller 31 rotates under the effect of driving piece 32, utilize bearing 7 to enable ventilation cover 42 and can not follow brush roller 31 and rotate to make the difficult torsional problem that produces of ventilation cover 42.
The implementation principle of the trenchless repair system for the steel cylinder hanging net spraying mortar composite lining pipe in the embodiment of the application is as follows: when the steel cylinder hanging net spraying mortar composite lining pipe non-excavation repair system is used, the steel cylinder hanging net spraying mortar composite lining pipe non-excavation repair system is moved to a position to be repaired on the inner wall of the pipeline 12 by the aid of the moving device 2, the conveying pump is started, mortar in the storage box 331 is conveyed to the spray head 333 and sprayed to the brush bristles 5 of the brush roller 31, meanwhile, the driving piece 32 is started to drive the brush roller 31 to rotate, so that mortar on the brush bristles 5 is coated on the inner wall of the pipeline 12, then the moving device 2 is driven to move in the direction far away from the drying device 4, the ventilation sleeve 42 is pulled to enter the position where the pipeline 12 is coated with the mortar, the fan 41 is started, air in the ventilation sleeve 42 is blown to the mortar layer 8 from the ventilation holes 6, and the mortar layer 8 is dried.
The embodiment of the application also discloses a trenchless repairing method for the steel cylinder hanging net spraying mortar composite lining pipe.
The non-excavation repair method of the steel cylinder hanging net spraying mortar composite lining pipe is realized by the non-excavation repair system of the steel cylinder hanging net spraying mortar composite lining pipe, and comprises the following steps:
the method comprises the following steps: the inner wall of the cleaned old pipeline 12 is coated with mortar by the coating device 3, and the inner wall of the pipeline 12 is subjected to mortar priming to form a mortar layer 8, so that the inner wall of the pipeline 12 is round.
Step two: and (3) drying the mortar on the inner wall of the pipeline 12 by using a drying device 4, specifically, firstly, drying by using hot air at the temperature of 35-50 ℃, and then, drying by using cold air at the temperature of 10-30 ℃.
Step three: the steel plate is pre-machined into a section of pipe blank according to the inner diameter of the old pipeline 12 repaired as required.
Step four: the tube blank is sent into a preset position in the old pipeline 12 and is expanded, so that the outer surface of the tube blank is tightly attached to the mortar bottoming, and the expanded tube blank is welded and closed to form a complete section of steel cylinder section; and then, welding and connecting the sections of the steel cylinder sections along the length direction of the pipeline 12 to form a whole continuous steel cylinder pipeline 9, and installing the whole continuous steel cylinder pipeline in place.
Step five: and welding and anchoring the steel wire mesh 10 to the inner wall of the steel cylinder pipeline 9.
Step six: and uniformly coating mortar on the inner surfaces of the steel wire mesh 10 and the steel cylinder pipeline 9 by using the coating device 3 again to form a uniform and flat steel wire mesh 10 reinforced mortar layer 11, so that the pipeline 12 is repaired.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. Non-excavation repair system of compound inside lining pipe of steel cylinder hanging net spraying mortar, its characterized in that: the coating machine comprises a rack (1), wherein a moving device (2), a coating device (3) and a drying device (4) are arranged on the rack (1);
the moving device (2) is used for driving the rack (1) to move inside the pipeline (12), the coating device (3) is used for coating mortar on the pipeline (12) and forming a mortar layer (8), the drying device (4) is used for drying the mortar layer (8), and the coating device (3) is located in front of the drying device (4) along the moving direction.
2. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to claim 1, characterized in that: the coating device (3) comprises a coating roller (31), a driving piece (32) for driving the coating roller (31) to rotate and a feeding component (33) for providing mortar for the coating roller (31), wherein the driving piece (32) is installed on the frame (1), the output end of the driving piece (32) and the coating roller (31) are coaxially and fixedly arranged, the coating roller (31) is in contact with the inner wall of the pipeline (12), and the feeding component (33) is installed on the frame (1).
3. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to claim 2, characterized in that: pay-off subassembly (33) are including storage case (331), conveying pipeline (332), conveying pump and shower nozzle (333), install in frame (1) storage case (331), the conveying pump is installed in storage case (331), storage case (331) and shower nozzle (333) are connected respectively to the both ends of conveying pipeline (332), brush roller (31) is scribbled to shower nozzle (333) orientation.
4. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to claim 2 or 3, characterized in that: the outer surface of the brushing roller (31) is provided with bristles (5), and the bristles (5) are in contact with the inner wall of the pipeline (12).
5. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to any one of claims 1 to 3, characterized in that: drying device (4) include fan (41) and with ventilation cover (42), fan (41) are installed outside pipeline (12), ventilation cover (42) set up in pipeline (12), a pot head of ventilation cover (42) is established on fan (41), the other end and the brush roller (31) of ventilation cover (42) are connected, ventilation hole (6) have been seted up on ventilation cover (42).
6. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to claim 5, characterized in that: the brush coating machine is characterized in that a bearing (7) is installed on the brush coating roller (31), the brush coating roller (31) is fixedly connected with the outer ring of the bearing (7), a connecting piece is installed on the ventilation sleeve (42), and the connecting piece is fixedly connected with the inner ring of the bearing (7).
7. The steel cylinder hanging net spraying mortar composite lining pipe trenchless repairing system according to claim 1, characterized in that: the moving device (2) comprises a connecting rod (21) and a roller (22), the roller (22) is rotatably installed at one end of the connecting rod (21), one end, far away from the roller (22), of the connecting rod (21) is connected with the rack (1), and the roller (22) is in sliding contact with the inner wall of the pipeline (12).
8. The non-excavation repairing method for the steel cylinder hanging net spraying mortar composite lining pipe is characterized by comprising the following steps of: the trenchless restoration system for the steel cylinder hanging net spraying mortar composite lining pipe is realized by the steel cylinder hanging net spraying mortar composite lining pipe of claims 1-7, and comprises the following steps:
the method comprises the following steps: coating mortar on the inner wall of the cleaned old pipeline (12) by using a coating device (3), and performing mortar priming on the inner wall of the pipeline (12) to form a mortar layer (8) so that the inner wall of the pipeline (12) is round;
step two: drying the mortar on the inner wall of the pipeline (12) by using a drying device (4);
step three: the inner diameter of an old pipeline (12) repaired by steel plates according to requirements is processed into a section of pipe blank in advance;
step four: the tube blank is sent into a preset position in an old pipeline (12) and is expanded, so that the outer surface of the tube blank is tightly attached to the mortar bottoming, and the expanded tube blank is welded and closed to form a complete section of steel cylinder section; welding and connecting the sections of the steel cylinder sections along the length direction of the pipeline (12) to form a whole continuous steel cylinder pipeline (9), and installing the whole continuous steel cylinder pipeline in place;
step five: welding and anchoring the steel wire mesh (10) to the inner wall of the steel cylinder pipeline (9);
step six: and uniformly coating mortar on the inner surfaces of the steel wire mesh (10) and the steel cylinder pipeline (9) by using the coating device (3) again to form a uniform and flat steel wire mesh (10) reinforced mortar layer (11) and realize the repair of the pipeline (12).
9. The trenchless repairing method of the steel cylinder hanging net spraying mortar composite lining pipe according to claim 8, characterized in that: and in the second step, firstly, adopting hot air to carry out air drying, and then adopting cold air to carry out air drying.
10. The trenchless repairing method of the steel cylinder hanging net spraying mortar composite lining pipe according to claim 9, characterized in that: the temperature of the hot air is 35-50 ℃, and the temperature of the cold air is 10-30 ℃.
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