CN112815175A - Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method - Google Patents
Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method Download PDFInfo
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- CN112815175A CN112815175A CN202011639818.XA CN202011639818A CN112815175A CN 112815175 A CN112815175 A CN 112815175A CN 202011639818 A CN202011639818 A CN 202011639818A CN 112815175 A CN112815175 A CN 112815175A
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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
- F16L55/16455—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 a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
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Abstract
The invention provides a pipe die pressing injection type trenchless pipeline repairing device and a repairing method, wherein a mixing pressurizing box is slidably arranged in a pipeline to be repaired, a material injection port is arranged on the mixing pressurizing box, a stirring chamber and a pressurizing chamber which are communicated are arranged in the mixing pressurizing box, the stirring chamber is communicated with the material injection port, a stirring mechanism is arranged in the stirring chamber, a pressurizing mechanism is arranged in the pressurizing chamber, a material outlet and a switch are arranged on the mixing pressurizing box, and the switch is used for switching the material outlet and the pressurizing chamber between communication and separation; the annular sealing strip is fixed in and treats the mouth of pipe inside wall behind the restoration pipeline, and compounding pressurized box rear is located to the pipe die, keeps off the ring before the pipe die front end is equipped with, and the pipe die lateral wall runs through and is equipped with the nozzle, is connected through the connecting pipe between nozzle and the discharge gate. The technical scheme provided by the invention has the beneficial effects that: the repair material is extruded to the defects of the pipeline to be repaired in an injection molding mode, the repair material can be completely filled in various defects of the old pipeline, and the pipeline composite structure formed after repair is high in strength.
Description
Technical Field
The invention relates to the technical field of municipal drainage pipeline trenchless repair, in particular to pipe mould pressing injection type trenchless pipeline repair equipment and a repair method.
Background
With the continuous acceleration of the urbanization process in China, urban underground pipe networks are continuously perfected, but more and more underground pipelines are available, and the service life of the underground pipelines is close to the service life of the underground pipelines. Buried pipelines are susceptible to continuous or intermittent physical, chemical, biochemical and biological attack, often resulting in various levels of defects such as leakage, corrosion, cracking, collapse of broken pieces, and the like. This greatly affects the normal operation of the pipe network, the safety of the above-ground structures and the ecological balance of the underground, and causes a series of losses and negative effects such as water supply loss and pollution, pipe network paralysis, road surface collapse and the like. Among them, the problems of leakage, water pollution, soil pollution and the like caused by the defects of pipeline cracks, block falling and the like become serious day by day, and the fields of resident life, ecological protection and the like are endangered. In general, trenchless pipeline rehabilitation methods call for a "detection-assessment-rehabilitation" management model, and rehabilitation methods are critical to the overall project. However, the traditional trenchless repairing methods such as the interpenetration method, the in-situ curing method, the pipe crushing (cracking) method, the spraying method and the like have certain limitations and cannot effectively guide the construction. The insertion method is difficult to implement in the bent pipeline, and the flow cross section of the pipeline is reduced after construction, so that the flow capacity of the pipeline is reduced; the in-situ curing method requires special construction equipment, has higher requirements on the construction level and experience of constructors, and is difficult to control the curing quality; the pipe crushing (cracking) method needs to excavate the ground when branch pipe connection and local collapse repair are carried out, so that the construction cost is high, and the ground traffic is influenced; the spraying method is limited by factors such as pipeline bending, angle change, leveling equipment precision, untimely curing and the like, and the spraying effect is not ideal enough; the spiral winding method is not suitable for repairing the pressure pipeline and has larger construction difficulty.
Disclosure of Invention
In view of the above, to solve the above problems, embodiments of the present invention provide a pipe mold pressing and injecting type trenchless pipeline repairing apparatus and a repairing method,
the embodiment of the invention provides pipe die pressing injection type trenchless pipeline repairing equipment and a repairing method, wherein the pipe die pressing injection type trenchless pipeline repairing equipment comprises the following steps:
the mixing and pressurizing box is slidably mounted in the pipeline to be repaired along the extending direction of the pipeline to be repaired, a traction part connected with the traction mechanism is arranged on the mixing and pressurizing box, a filling port is arranged on the mixing and pressurizing box, a stirring chamber and a pressurizing chamber which are communicated are arranged in the mixing and pressurizing box, the stirring chamber is communicated with the filling port, a stirring mechanism is arranged in the stirring chamber and is used for stirring the repairing material, a pressurizing mechanism is arranged in the pressurizing chamber and is used for pressurizing the repairing material, a discharging port and a switch are arranged on the mixing and pressurizing box, the switch is used for switching the discharging port and the pressurizing chamber between communication and separation, and when the pressure in the pressurizing chamber reaches a preset pressure, the pressurizing chamber is communicated with the discharging port;
the annular sealing strip is fixed on the inner side wall of the rear pipe orifice of the pipeline to be repaired; and the number of the first and second groups,
the pipe die is located compounding pressurized tank rear, the pipe die front end is equipped with the preceding fender ring that is the annular setting, preceding fender ring lateral wall offsets with waiting to restore the pipeline inside wall, wait to form confined space between restoration pipeline, pipe die and the annular seal strip, the pipe die lateral wall run through be equipped with the nozzle of confined space intercommunication, the nozzle with connect through the connecting pipe between the discharge gate.
Further, the stirring mechanism comprises a driving motor and a stirring shaft, a containing cavity is arranged in the mixing pressurizing box and is separated from the stirring cavity, the driving motor is arranged in the containing cavity, one side of the containing cavity, which is close to the stirring cavity, is provided with a through hole in a penetrating manner, one end of the stirring shaft penetrates through the through hole and is connected with the driving motor, and the other end of the stirring shaft is located in the stirring cavity.
Furthermore, one end of the stirring shaft, which is positioned in the stirring chamber, is spirally arranged.
Further, the pressure mechanism includes piston motor and piston, the piston motor is located in the pressurization cavity, the piston tip with the inside wall of pressurization cavity offsets, be equipped with the check valve on the piston, the check valve forms the switch, the piston is located the pressurization cavity with the intercommunication mouth of stirring cavity between the discharge gate, the piston motor with the piston is connected, and drives the piston is in the intercommunication mouth with round trip movement between the discharge gate.
Further, a plurality of supports are fixed on the outer side wall of the mixing pressurizing box at intervals along the circumferential direction, rollers are arranged at one ends, far away from the mixing pressurizing box, of the supports, and the rollers are abutted to the inner side wall of the pipeline to be repaired.
Further, the compounding adds the pressure tank both ends and all is equipped with a plurality ofly the support.
Furthermore, the pipe die is provided with a plurality of nozzles at intervals in the circumferential direction, and each nozzle is connected with the connecting pipe through a dispersion pipe.
Furthermore, an accelerating and curing device is arranged in the pipe die.
Furthermore, the front end and the rear end of the pipe die are respectively inwards recessed to form annular grooves, the annular grooves are located on the periphery of the pipe die and located behind the front retaining ring, annular sealing rings are fixed in the annular grooves, the annular sealing rings located on the front side are abutted to the pipeline to be repaired, and the outer side walls of the annular sealing rings located on the rear side are abutted to solidified materials.
The embodiment of the invention also provides a repairing method, which adopts the pipe die pressure injection type trenchless pipeline repairing equipment and comprises the following steps:
injecting a repairing material into the mixing and pressurizing box through the injection port, stirring the repairing material by using a stirring mechanism after the repairing material enters the stirring chamber, allowing the repairing material to enter the pressurizing chamber, pressurizing the repairing material by using the pressurizing mechanism, and opening a switch to allow the repairing material to flow out of the discharge port when the pressure of the repairing material reaches a preset pressure;
the method comprises the steps that a repairing material flows into a sealed space from a nozzle of a pipe die through a connecting pipe, the repairing material on one side of a discharge port is extruded by a pressurizing mechanism, the sealed space is filled with the repairing material and reaches a preset pressure, after the repairing material is cured, a traction mechanism is connected with a traction part of a mixing material pressurizing box, the mixing material pressurizing box is pulled forwards by the traction mechanism to drive the pipe die to move forwards together, a front baffle ring at the front end of the pipe die scrapes foreign matters on the inner side of the pipe to be repaired, the pipe die moves to a position opposite to the next section of the pipe to be repaired, the rear end of the pipe die abuts against the cured material, a sealed space is formed among the pipe to be repaired, the pipe die and the cured material, and the operation is repeated to finish pipeline repairing.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the repair material is extruded to the defects of the pipeline to be repaired in an injection molding mode, the repair material can be completely filled in various defects of the old pipeline, and the pipeline composite structure formed after repair is high in strength. The repairing material is uniformly filled into the cavity between the pipeline to be repaired and the surrounding soil body through the connecting pipe and the dispersion pipe by pressure injection, so that accidents of ground settlement, collapse and the like caused by pipeline defects are effectively prevented.
The inner wall of the lining formed by the construction method is smooth, secondary floating is not needed, and the problem that the flatness of the lining cannot be accurately controlled by the traditional spraying method is solved. The device has strong adaptability and integrity, and can adapt to pipelines with various shapes and treat construction difficulties such as special-shaped section corners and the like. The equipment is mechanically completed in the repairing process, manual operation of going into the well is not needed, the construction speed is accelerated through the accelerating and curing device, and the comprehensive cost is reduced. The device has a good repairing effect on old pipelines with defects such as block falling pits, cracks and holes, the strength of a composite structure formed after repairing is high, the method is convenient and quick to implement, and the device is strong in adaptability and easy to popularize.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a pipe mold pressing and injection type trenchless pipeline repairing device and a repairing method provided by the invention;
FIG. 2 is a schematic diagram of the construction of the compounding pressure tank of FIG. 1;
FIG. 3 is a schematic view of the pipe die, connecting pipe and dispersion pipe of FIG. 1;
figure 4 is a partial cross-sectional view of the pipe die and pipe to be repaired of figure 1.
In the figure: the device comprises a pipeline to be repaired 100, a repairing material 200, a reinforced material 300, a mixing and pressurizing box 1, a traction part 11, a feeding port 12, a stirring chamber 13, a pressurizing chamber 14, an accommodating chamber 15, a discharging port 16, a communicating port 17, a pipe die 2, a bracket 3, a roller 4, a driving motor 5, a stirring shaft 6, a piston motor 7, a piston 8, a check valve 81, an accelerated curing device 9, an annular sealing strip 91, a front baffle ring 92, a nozzle 93, a connecting pipe 94, a dispersion pipe 95 and an annular sealing ring 96.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present invention provides a pipe mold pressing and injecting type trenchless pipeline repairing apparatus and a repairing method thereof, including a mixing and pressing box 1 and a pipe mold 2.
The mixing and pressurizing box 1 is slidably mounted in the pipeline 100 to be repaired along the extending direction of the pipeline 100 to be repaired, a traction part 11 connected with a traction mechanism is arranged on the mixing and pressurizing box 1, and the traction mechanism pulls the mixing and pressurizing box 1 to move forwards. In this embodiment, 1 lateral wall of compounding pressurization case is fixed with a plurality of supports 3 along the circumference interval, support 3 is kept away from the one end of compounding pressurization case 1 is equipped with gyro wheel 4, gyro wheel 4 with wait to restore the pipeline 100 inside wall and offset, can reduce compounding pressurization case 1 and wait to restore the frictional force between the pipeline 100, the compounding pressurization case 1 forward movement of being convenient for, compounding pressurization case 1 both ends all are equipped with a plurality of support 3 can improve compounding pressurization case 1 and be located and wait to restore the stability of pipeline 100 in and forward movement.
The mixing and pressurizing box 1 is provided with a filling opening 12, the filling opening 12 can be externally connected with a repair material 200 conveying pipeline, and the repair material 200 can be continuously filled into the mixing and pressurizing box 1. Be equipped with the stirring cavity 13 and the pressurization cavity 14 of intercommunication in the compounding pressurization case 1, stirring cavity 13 with sprue 12 intercommunication, be equipped with rabbling mechanism in the stirring cavity 13 for stir repair materials 200. The repair material 200 is injected into the stirring chamber 13 from the injection port 12, and the stirring mechanism can stir the repair material 200, so that the repair material 200 is fully mixed, and the reinforcement effect is ensured. In this embodiment, the stirring mechanism includes a driving motor 5 and a stirring shaft 6, and the driving motor 5 drives the stirring shaft 6 to rotate, so as to stir the repair material 200. In order to avoid repair material 200 to cause the influence to driving motor 5, be equipped with holding chamber 15 in compounding pressurization case 1, holding chamber 15 with stirring chamber 13 separates the setting, and driving motor 5 locates in holding chamber 15, holding chamber 15 is close to one side of stirring chamber 13 is run through and is equipped with the through-hole, and (mixing) shaft 6 one end is passed the through-hole with driving motor 5 is connected, and the other end is located in stirring chamber 13, (mixing) shaft 6 is located one end in the stirring chamber 13 is the heliciform setting, can improve the efficiency to the stirring of repair material 200.
A pressurizing mechanism is provided in the pressurizing chamber 14 to pressurize the repair material 200. The mixing and pressurizing box 1 is provided with a discharge port 16 and a switch, the switch is used for switching the discharge port 16 and the pressurizing chamber 14 between communication and separation, and when the pressure in the pressurizing chamber 14 reaches a preset pressure, the pressurizing chamber 14 is communicated with the discharge port 16.
In this embodiment, the pressurizing mechanism includes a piston motor 7 and a piston 8, the piston motor 7 is disposed in the pressurizing chamber 14, an end portion of the piston 8 abuts against an inner side wall of the pressurizing chamber 14, a check valve 81 is disposed on the piston 8, the check valve 81 forms the switch, the piston 8 is located between the pressurizing chamber 14 and the communicating port 17 of the stirring chamber 13 and the discharge port 16, and the piston motor 7 is connected to the piston 8 and drives the piston 8 to move back and forth between the communicating port 17 and the discharge port 16. The piston motor 7 can also be replaced by a one-way cylinder, a hydraulic oil cylinder and the like, the piston motor 7 drives the piston 8 to move back and forth, in fig. 2, after the repairing material 200 enters the pressurizing chamber 14 from the stirring chamber 13, the repairing material 200 is positioned on the left side of the piston 8, the piston motor 7 drives the piston 8 to move left, the repairing material 200 can be pressurized, when the pressure of the repairing material 200 reaches the maximum pressure of the one-way valve 81, the repairing material 200 flows into the right side of the piston 8 from the one-way valve 81 and then flows out from the discharge hole 16, then the piston motor 7 drives the piston 8 to move right, and the repairing material 200 can flow out from the discharge hole 16 in a pressure injection mode.
Referring to fig. 4, the annular sealing strip 91 is fixed to the inner side wall of the rear pipe orifice of the pipeline 100 to be repaired, and the annular sealing strip 91 is made of a rubber strip. Pipe die 2 is located compounding pressurization case 1 rear, pipe die 2 have certain intensity and resist and annotate material pressure, and pipe die 2's material can be steel but is not restricted to steel. The front end of the pipe die 2 is provided with a front retaining ring 92 which is annularly arranged, and the outer side wall of the front retaining ring 92 is abutted to the inner side wall of the pipeline 100 to be repaired. In the process of driving the pipe die 2 to move forward by pulling the mixed material pressurizing box 1 forward by using the traction mechanism, the front baffle ring 92 at the front end of the pipe die 2 can scrape off the foreign matters on the inner side of the pipeline 100 to be repaired, so that the foreign matters are prevented from entering holes and cracks of the pipeline 100 to be repaired. Wait to form confined space between restoreing pipeline 100, pipe die 2 and the annular sealing strip 91, pipe die 2 lateral wall run through be equipped with the nozzle 93 of confined space intercommunication, nozzle 93 with connect through connecting pipe 94 between the discharge gate 16. The repairing material 200 flowing out from the discharge port 16 flows into the sealed space through the connecting pipe 94, and then can flow into pits, cracks and holes on the inner side wall of the pipe to be repaired, so that the pipe 100 to be repaired is repaired. 2 circumference intervals of pipe die are equipped with a plurality ofly nozzle 93, each nozzle 93 with connect through a dispersion pipe 95 respectively between the connecting pipe 94, can accelerate the speed that repair material 200 filled pit, crack and hole, be convenient for simultaneously treat that repair pipeline 100 all directions are restoreed. Because the distance between the pipeline 100 to be repaired and the pipe die 2 is smaller, the material solidified on the inner side wall of the material 200 to be repaired is a thin layer, and the flow area of the pipeline 100 to be repaired cannot be influenced.
The pipe die 2 is internally provided with an accelerated curing device 9, and after the repairing material 200 is filled into pits, cracks and holes, the repairing material 200 can be cured by the accelerated curing device 9, so that the repairing speed can be improved. The front end and the rear end of the pipe die 2 are respectively inwards recessed to form annular grooves, the annular grooves are located at the periphery of the pipe die and located behind the front baffle ring 92, annular sealing rings 96 are fixed in the annular grooves, the annular sealing rings 96 are located on the front side and abut against the pipeline 100 to be repaired, the outer side walls of the annular sealing rings 96 are located on the rear side and abut against the solidified material 300, and therefore the sealing performance of a sealing space can be guaranteed.
Specifically, the principle of the present invention is explained in detail by the following operations, the repairing material 200 is injected into the mixed material pressurizing box 1 through the injection port 12, after the repairing material 200 enters the stirring chamber 13, the repairing material 200 is stirred by the stirring mechanism to promote uniform mixing of the repairing material 200, after the repairing material 200 in the stirring chamber 13 is filled, the repairing material 200 enters the pressurizing chamber 14, the repairing material 200 is pressurized by the pressurizing mechanism, when the pressure of the repairing material 200 reaches a preset pressure, the switch is turned on to make the repairing material 200 flow out from the discharge port 16, specifically, the repairing material 200 is extruded by the piston 8, and when the pressure of the repairing material 200 on the left side of the piston 8 reaches the maximum pressure of the check valve 81, the repairing material 200 flows from the check valve 81 to the right side of the piston 8 and further flows out from the discharge port 16. When the piston 8 is used to pressurize the repair material 200, the injection port 12 can be blocked to prevent the repair material 200 from flowing back during pressurization. The repairing material 200 flows into a sealed space from a nozzle 93 of the pipe die 2 through a connecting pipe 94 and a dispersion pipe 95, the repairing material 200 on one side of a discharge hole 16 is extruded by a pressurizing mechanism, the repairing material 200 in the sealed space is filled with the repairing material 200 and reaches a preset pressure, specifically, a piston 8 moving rightwards applies pressure to the repairing material 200, the repairing material 200 in the sealed space is filled with the repairing material 200 and reaches the preset pressure, after the repairing material 200 is cured, specifically, the repairing material 200 is cured by an accelerated curing device 9, after the curing is completed, a traction mechanism is connected with a traction part 11 of the mixing material pressurizing box 1, the mixing material pressurizing box 1 is pulled forwards by the traction mechanism to drive the pipe die 2 to move forwards together, a front baffle ring 92 at the front end of the pipe die 2 scrapes foreign matters on the inner side of the pipe 100 to be repaired, the pipe die 2 moves to a position opposite to a section below the pipe 100 to be repaired, the rear end of the pipe die 2 abuts against the cured material 300, a sealed space is formed among the pipeline 100 to be repaired, the pipe die 2 and the cured material 300, and the above operations are repeated to complete pipeline repair.
This equipment is advanced slowly along the extending direction of waiting to restore pipeline 100 by the whole equipment of traction mechanism tractive, simultaneously stir and pressurize the fluid repairing material 200 who injects by compounding pressure tank 1, evenly inject into the confined space between waiting to restore pipeline 100 and pipe die 2 through dispersion pipe 95 and nozzle 93, utilize high pressure to make repairing material 200 fill completely waiting to restore inside the point of waiting to restore such as crack, hole, pit of waiting to restore the old pipeline, then adopt solidification accelerating device 9 to carry out the rapid hardening and reach certain intensity to repairing material 200, thereby accomplish the restoration to old pipeline. The repair material 200 is extruded to the defects of the pipeline 100 to be repaired in an injection molding mode, the repair material 200 can be completely filled in various defects of the old pipeline, and the pipeline composite structure formed after repair is higher in strength. The repairing material 200 is uniformly filled into the hollow space between the pipeline 100 to be repaired and the surrounding soil body through the connecting pipe 94 and the dispersion pipe 95 by pressure injection, thereby effectively preventing accidents such as ground settlement and collapse caused by pipeline defects. The inner wall of the lining formed by the construction method is smooth, secondary floating is not needed, and the problem that the flatness of the lining cannot be accurately controlled by the traditional spraying method is solved. The device has strong adaptability and integrity, and can adapt to pipelines with various shapes and treat construction difficulties such as special-shaped section corners and the like. The equipment is mechanically completed in the repairing process, manual operation of descending the well is not needed, the construction speed is accelerated through the accelerating and curing device 9, and the comprehensive cost is reduced. The device has a good repairing effect on old pipelines with defects such as block falling pits, cracks and holes, the strength of a composite structure formed after repairing is high, the method is convenient and quick to implement, and the device is strong in adaptability and easy to popularize.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a non-excavation pipeline repair equipment is annotated to pipe mould pressing which characterized in that includes:
the mixing and pressurizing box is slidably mounted in the pipeline to be repaired along the extending direction of the pipeline to be repaired, a traction part connected with the traction mechanism is arranged on the mixing and pressurizing box, a filling port is arranged on the mixing and pressurizing box, a stirring chamber and a pressurizing chamber which are communicated are arranged in the mixing and pressurizing box, the stirring chamber is communicated with the filling port, a stirring mechanism is arranged in the stirring chamber and is used for stirring the repairing material, a pressurizing mechanism is arranged in the pressurizing chamber and is used for pressurizing the repairing material, a discharging port and a switch are arranged on the mixing and pressurizing box, the switch is used for switching the discharging port and the pressurizing chamber between communication and separation, and when the pressure in the pressurizing chamber reaches a preset pressure, the pressurizing chamber is communicated with the discharging port;
the annular sealing strip is fixed on the inner side wall of the rear pipe orifice of the pipeline to be repaired; and the number of the first and second groups,
the pipe die is located compounding pressurized tank rear, the pipe die front end is equipped with the preceding fender ring that is the annular setting, preceding fender ring lateral wall offsets with waiting to restore the pipeline inside wall, wait to form confined space between restoration pipeline, pipe die and the annular seal strip, the pipe die lateral wall run through be equipped with the nozzle of confined space intercommunication, the nozzle with connect through the connecting pipe between the discharge gate.
2. The pipe die pressure casting type trenchless pipeline repairing equipment as claimed in claim 1, wherein the stirring mechanism comprises a driving motor and a stirring shaft, a containing chamber is arranged in the mixing pressurizing tank, the containing chamber is separated from the stirring chamber, the driving motor is arranged in the containing chamber, a through hole is arranged in one side of the containing chamber close to the stirring chamber in a penetrating manner, one end of the stirring shaft penetrates through the through hole to be connected with the driving motor, and the other end of the stirring shaft is arranged in the stirring chamber.
3. The pipe die pressure casting trenchless pipeline rehabilitation device of claim 2, wherein an end of the stirring shaft positioned in the stirring chamber is spirally arranged.
4. The pipe die pressure injection type trenchless pipeline repairing device of claim 1, wherein the pressurizing mechanism comprises a piston motor and a piston, the piston motor is arranged in the pressurizing chamber, the end part of the piston is abutted against the inner side wall of the pressurizing chamber, a one-way valve is arranged on the piston, the one-way valve forms the switch, the piston is positioned between the pressurizing chamber and the communicating port of the stirring chamber and the discharge port, and the piston motor is connected with the piston and drives the piston to move back and forth between the communicating port and the discharge port.
5. The pipe die pressure injection type trenchless pipeline repairing equipment as claimed in claim 1, wherein a plurality of brackets are fixed on the outer side wall of the mixing pressure box at intervals along the circumferential direction, and a roller is arranged at one end of each bracket far away from the mixing pressure box and abuts against the inner side wall of the pipeline to be repaired.
6. The pipe die pressure injection type trenchless pipeline rehabilitation device as claimed in claim 5, wherein a plurality of said supports are provided at both ends of said mixing and pressurizing tank.
7. The pipe die pressure-injection trenchless pipeline rehabilitation device as claimed in claim 1, wherein a plurality of said nozzles are provided at intervals in the circumferential direction of said pipe die, and each of said nozzles is connected to said connection pipe by a dispersion pipe.
8. The pipe die pressure casting trenchless pipeline rehabilitation apparatus of claim 1, wherein a curing acceleration device is provided in the pipe die.
9. The pipe die pressure casting type trenchless pipeline repairing device as claimed in claim 1, wherein the front end and the rear end of the pipe die are respectively recessed inwards to form an annular groove, the annular groove is positioned at the periphery of the pipe die and behind the front retaining ring, an annular sealing ring is fixed in the annular groove, the annular sealing ring positioned at the front side abuts against the pipeline to be repaired, and the outer side wall of the annular sealing ring positioned at the rear side is used for abutting against the solidified material.
10. A method of rehabilitation using the pipe die-casting trenchless pipeline rehabilitation apparatus as claimed in any of claims 1 to 9, comprising the steps of:
injecting a repairing material into the mixing and pressurizing box through the injection port, stirring the repairing material by using a stirring mechanism after the repairing material enters the stirring chamber, allowing the repairing material to enter the pressurizing chamber, pressurizing the repairing material by using the pressurizing mechanism, and opening a switch to allow the repairing material to flow out of the discharge port when the pressure of the repairing material reaches a preset pressure;
the method comprises the steps that a repairing material flows into a sealed space from a nozzle of a pipe die through a connecting pipe, the repairing material on one side of a discharge port is extruded by a pressurizing mechanism, the sealed space is filled with the repairing material and reaches a preset pressure, after the repairing material is cured, a traction mechanism is connected with a traction part of a mixing material pressurizing box, the mixing material pressurizing box is pulled forwards by the traction mechanism to drive the pipe die to move forwards together, a front baffle ring at the front end of the pipe die scrapes foreign matters on the inner side of the pipe to be repaired, the pipe die moves to a position opposite to the next section of the pipe to be repaired, the rear end of the pipe die abuts against the cured material, a sealed space is formed among the pipe to be repaired, the pipe die and the cured material, and the operation is repeated to finish pipeline repairing.
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| CN202011639818.XA CN112815175B (en) | 2020-12-31 | 2020-12-31 | Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method |
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| CN202011639818.XA CN112815175B (en) | 2020-12-31 | 2020-12-31 | Pipe die pressing and injecting type trenchless pipeline repairing equipment and repairing method |
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| CN112815175A true CN112815175A (en) | 2021-05-18 |
| CN112815175B CN112815175B (en) | 2022-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114280162A (en) * | 2021-12-29 | 2022-04-05 | 长沙航空职业技术学院 | A robot for tap water pipeline detects a flaw |
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| CN112815175B (en) | 2022-03-08 |
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