KR102116660B1 - Repairing device of non-excavation type for sewage pipe and its repairing method for thermosetting sewage pipe utilizing the device thereof - Google Patents

Abstract

The present invention is to provide a non-excavating type sewage pipeline repair apparatus which repairs defects such as pipe separation, cracks, and damaged parts caused by an external environment in a sewage pipeline of wastewater or rainwater, and a thermosetting sewage pipeline repair method using the repair apparatus. The non-excavating type sewage pipeline repair apparatus of the present invention comprises: a boiler for supplying a heat medium for thermally curing a thermosetting repair material through a manhole on the ground; and a packer including cap-type end pieces which have wheels at both ends of a support pipe disposed in a longitudinal direction at the center of unit conduits of a sewer pipeline and are arranged to face each other while having an outer diameter smaller than the inner diameter of the conduits, a manifold which receives the heat medium supplied from the boiler into any one of the end pieces through an inlet to disperse the heat medium to several branch pipes, a base pipe which is opened outward between the end pieces and is installed adjacent to and across inner walls of the unit conduits of the sewage pipeline while being connected with the branch pipes of the manifold, and a pressurization chamber which is covered with a pressurization tube, wherein the pressurization tube is contracted and expanded with both ends fixed by fasteners to the circumference of the outward opening of the base pipe. Accordingly, a thermosetting repair material is wound around the packer to be transported to a defective part of the sewage pipeline, and the transported thermosetting repair material is closely applied and finished to a defect by using the pressurization tube expanded due to a heat medium charge pressure in the pressurization chamber of the packer.

Description

Repairing device of non-excavation sewage pipe and thermosetting sewage pipe repairing method using the repairing device {Repairing device of non-excavation type for sewage pipe and its repairing method for thermosetting sewage pipe utilizing the device thereof}

The present invention relates to a method for repairing a non-excavating sewer pipe for repairing defects such as pipe separation or cracks and damages caused by an external environment in sewage pipes such as sewage or rainwater, and a method for repairing a thermosetting sewage pipe using the repair device. .

Sewer pipes such as sewage and rainwater are installed in a buried manner by connecting unit conduits between manholes placed at a distance.

Sewage pipelines are vulnerable to cracks, breakages, or pipe separation and misalignment in conduits that connect to the external environment due to aging and subsidence of the ground or fluctuations in soil pressure on the ground.

The blemishes in the sewer pipes cause contamination and ground sedimentation of groundwater and soil due to flooding or leakage of waste water, and maintenance and repair of sewage pipes are required.

In the maintenance of sewage pipes, non-excavation type is mainly used, and the repair of such non-extraction type sewer pipes is a packer that moves freely in the sewer pipe, and transports the thermosetting repair material of the point-adhesive composite sheet to the flaws and transports it. The thermosetting repair material is applied to the flaws by the expansion force acting on the inner wall side of the sewer pipe.

In other words, the thermosetting repair material is applied to the flaws of the sewer pipe by using a pressurized tube that contracts and expands around the packer that slides or slides on the inner wall in the sewer pipe, and then undergoes a heat-curing process, followed by a heat curing process to the desired sewer pipe. Remuneration is achieved.

The heat source for repairing the sewer pipe using the thermosetting repair material is largely divided and uses heat, steam, and the like. In recent years, the sewer pipe repair device using the fruit is mainly used.

Various repair devices for sewage pipes using fruit have been developed and used to date, and are, for example, composed of a boiler provided on the ground and a packer that moves freely within a sewer pipe and carries and applies repair materials.

The packer in such a sewer pipe repair device is a pressure-resisting tube that shrinks and expands by wrapping the adhesive resin on the outside and sticking both ends with a binding band around the disc-shaped seals arranged in pairs at intervals in the longitudinal direction of the sewer pipe. It has a pressurized action chamber, and a steam supply pipe for supplying the fruit of the hot steam supplied from the above-ground boiler to the pressurized action chamber is connected to any one of the pair of seals.

The packer constructed in this way is transported to the flaw of the sewer pipe requiring maintenance, and then the fruit supplied from the boiler on the ground is filled into the pressurizing action chamber through the steam supply pipe provided in the airtight side of one side. As it expands, the adhesive resin on the outside of the pressurized tube is applied in close contact with the sewage pipe. At this time, the packer's pressurizing chamber maintains a constant heat and temperature of the fruit while forming a heat curing process of the desired adhesive resin.

However, in such a packer, the fruit is supplied through a steam supply pipe provided at one side of the seal, and the expansion pressure of the pressurized tube is not uniform, that is, the pressure at the fruit inlet side is high and the pressure at the other side is lowered. There is a problem of poor adhesion of the adhesive resin, such as not being able to closely adhere to the resin.

In addition, since the pressurized action chamber has the same size as the disc-shaped seal, the filling amount of the fruit is unnecessarily increased, and the operation cost of the repair device increases, and the temperature is unstable due to temperature fluctuations in the center and edge of the pressurized action chamber and simultaneously heat This is because the curing process is not smooth, and repair defects, such as separation of repair materials, are occurring.

Thus, in recent years, there is a need to improve the repairing and repairing method of the non-excavating sewer pipe that steadily solves the problem of maintenance failure by reducing the operation cost and maintaining the expansion pressure of the pressurized tube and the temperature of the fruit uniformly.

Registration room 20-0410377 Patent Registration No. 10-1541650

The present invention was made in consideration of the circumstances described above, and its purpose is to prevent the temperature deviation in the packer pressurization chamber and to solve the problem of poor application of the thermosetting repair material by uniformly transmitting the expansion pressure of the pressurized tube, and simultaneously, pressurizing action. It is to provide a method for guaranteeing a non-drilling sewer line and a sewer line repairing method using the repair device, which can reduce the amount of fruit filling and reduce the operation cost of the repair device.

An object of the present invention is to repair a non-excavating sewer pipe for repairing defects such as pipe separation or cracks and damages caused by an external environment in sewage pipes such as sewage or rainwater, and a thermosetting sewage pipe repairing method using the repair device It is achieved by providing.

According to the present invention, the unit conduits between manholes placed at a distance are installed in a buried manner, and the heat curability of the composite sheet for defects such as pipe separation, cracks, and damage caused by an external environment in a sewage pipe draining sewage or rainwater As a repair device for a non-drilled sewer pipe that is applied and repaired with a repair material, both ends of a support pipe disposed in the longitudinal direction from the center of the unit conduits of a boiler and a sewer pipe to supply heat for heat curing of the thermosetting repair material through a manhole on the ground The wheels are provided and the cap-type maguri, which are disposed opposite to each other with a smaller outer diameter than the inner diameter of the conduit, and receive the fruit supplied from the boiler through the inlet of any one of the maguri to be distributed to several branch pipes. The manifold is a base pipe which is opened outwardly between the ends and the branch pipes of the manifold are connected to the inner wall of the unit conduits of the sewer line to be crossed across the inner wall, and both ends are bound around the outward opening side of the base pipe. Including a packer equipped with a pressurized action chamber wrapped around a pressurized tube that is fixed and contracted and expanded, the thermosetting repair material is wound around the packer and transported to a flaw in the sewer line, and the transported thermosetting repair material is used in the packer pressurization action chamber. Using a pressurized tube that expands under fruit filling pressure, it is applied to the flaws and finished.

According to the method for repairing a non-excavating sewer line and a thermosetting sewer line repairing method using the repair device, a minimum volume is required at a position adjacent to an inner wall of conduits of a sewer line to repair a pressurized action chamber of a packer. It solves the temperature deviation problem at the center and edge of the large pressurization chamber.

In addition, the present invention, the fruit supplied through the branch pipes from the manifold to the base tube of the pressurized action chamber is recruited as a header to gradually and evenly spread from the center of the periphery of the pressurized action chamber to the sides of the pressurized action chamber, thereby providing thermosetting repair material. The coating is firmer and more stable, and has the effect of increasing reliability in maintenance work.

In addition, the present invention also has the effect of reducing the operation cost of the repair device by reducing the filling amount of the fruit by making the packer's pressurizing chamber to a minimum volume, thereby reducing the construction cost.

1 is a cross-sectional view schematically showing the overall configuration of a repair apparatus for a non-excavating sewer pipe according to the present invention.
Figure 2 is an enlarged sectional view showing an excerpt from part A of Figure 1;
Figure 3 is a perspective view showing the extractor packer manifold and the base tube repair apparatus of the present invention non-excavated sewer line.
4 is a cross-sectional view taken along line BB of FIG. 2.
5 and 6 is an explanatory view showing the repair process of the repair device of the present invention non-excavated sewage pipelines,
Figure 5 is a packer wound around the repair material is transported to the defects of the sewer line,
FIG. 6 is an explanatory view showing a state in which a repair material is applied to a defect in a sewage pipe by a pressurizing tube expanded by filling of a fruit in a pressurizing action chamber of the packer.
7 is a process diagram of a sewer line repair process using the repair device for a non-excavated sewer line of the present invention.

Next, an embodiment of the present invention will be described. 1 to 4 are detailed in the repairing method of the non-excavating sewage pipe according to the present invention and a thermosetting sewage pipe repairing method using the repairing apparatus.

The present invention provides a method for repairing a non-excavating sewer line for repairing defects such as pipe separation or cracks and damages caused by an external environment in a sewer line such as sewage or rainwater, and a method for repairing a thermosetting sewer line using the repair device will be.

In the drawing, 10 is a sewer pipe 10. This sewer pipe 10 is installed in a buried manner by connecting unit conduits 14 between manholes 12 arranged from the ground to the ground at a distance.

The repair device for the non-excavating sewer line of the present invention is largely divided into a boiler 20 provided on the ground and a packer 40 movably loaded in the sewer line 10.

First, the boiler 20 is disposed on the ground adjacent to the manhole 12 and will supply fruits such as high temperature and high pressure steam for the heat curing process of the thermosetting repair material 30 to be described later.

The packer 40 is formed in a bogie type and is freely movable in the unit conduits 14 of the sewer pipe 10 using wheels.

To explain this in more detail, the packer 40 is disposed in the longitudinal direction from the center of the unit conduits 12 of the sewer pipe 10 and the support pipe 42 through which the sewage freely communicates, and both ends of the support pipe 42 The tripod-type wheels 44a are provided, and the cap-type maguri 44 and the maguri 44, which are disposed opposite to each other with a smaller outer diameter than the inner diameter of the unit conduit 14, inside the maguri 44, The manifold 46 that accepts the fruit supplied from the boiler 20 through the inlet 46-1 and distributes it to a plurality of branch pipes 46a, and the manifold 44 opens outwardly between the maguri 44. The circumferential opening side circumference of the base pipe 48 and the base pipe 48 which are connected to the inner walls of the unit conduits 14 of the sewer pipe 10 by connecting the branch pipes 46a of the fold 46 In both ends is fixed to the binding table (49a) is formed by a pressing action chamber 41 is formed by wrapping with a pressure tube 49 to contract and expand.

The pressurized tube 49 of the packer 40 is a foundation for performing application and transport of the thermosetting repair material 30.

The pressing action chamber 41 is formed of a relatively minimal space adjacent to the inner wall of the unit conduit 14 on the outward side of the circumference of the maguri 44 to reduce the filling amount of the fruit and to heat the fruit more firmly without heat loss in the thermosetting repair material 30. And deliver it.

The packer 40 configured in this way will allow the operator to be manually pushed and transported within the conduits 12 of the sewer line 10 or to the defect 14a which is a maintenance point of the sewer line 10 by remote control.

The packer 40 has a header 48a to which the branch pipes 46a of the manifold 46 are connected in the longitudinal center of the base tube 48, and the header 48a is provided with a header 48a. A V-shaped dispersion blade 48a-1 is provided to allow the fruit flowing through the branch pipes 46a to be evenly diffused in the pressing action chamber 41. At this time, the dispersion blades 48a-1 distribute and supply the fruits introduced from the circumference of the header 48a evenly to the pressing action chamber 41, and at the same time, the fruits are supplied from the center of the longitudinal direction of the base tube 48 to both ends. By gradually spreading to the field 44 side, during the application process of the thermosetting repair material 30, air bubbles between the unit conduits 14 are prevented and firmly and firmly adhered.

In addition, the base tube 48 of the packer 40 is provided with a recovery port 41a for sending the fruit supplied to the pressurizing action chamber 41 to the boiler 20 side, so that the boiler 20 and the pressurizing action chamber 41 are provided. Fruits are circulated continuously and repeatedly in between. At this time, the circulation of the fruit will keep the heating temperature of the fruit in the pressurized action chamber 41 uniformly, thereby making the thermosetting process of the thermosetting repair material 30 more efficient.

Referring to Figures 5 and 6 will be described the repair process of the repair device of the present invention non-excavated sewer pipe.

FIG. 5 shows that the packer 40 of the present invention waits for repair by being manually transported or transported by a remote control unit to a portion 14a of the unit conduits 14 of the sewer pipe 10. At this time, the fruit is not supplied from the boiler 20 to the pressing action chamber 41 of the packer 40, so the pressing tube 49 is in a contracted state.

FIG. 6 shows a process in which the unit conduits 14 and the flaws 14a of the sewer pipe 10 are repaired using the packer 40 of the present invention.

To explain this further, as indicated by the arrows in the drawing, the ground boiler 20 is driven to feed the fruit into the manifold 46 inlet 46-1 of the packer 40, and then several branch pipes ( It is supplied to the header 48a of the base tube 48 through 46a), and the fruits collected by the header 48a are evenly diffused and filled into the pressing action chamber 41 by the V-shaped dispersion wings 48a-1. Simultaneously, while the pressure tube 49 expands, the thermosetting repair material 30 wound around the pressure tube 49 is in close contact with the inner walls of the unit conduits 14, that is, the flaws 14a to complete the application process. .

And when the coating process is completed, the fruit is recovered to the boiler 20 through the recovery port 41a of the pressurized action chamber 41, and after reheating, it is continuously and repeatedly recycled to the pressurized action chamber 41, and has a predetermined thermosetting property. The repair material 30 will achieve the curing process.

With reference to Figure 7 will be described in detail with respect to the method of repairing the thermosetting sewage pipe using the repair device of the present invention non-excavated sewage pipe.

First, there is a search step 100 for finding a repair position by finding a fault 14a to be repaired by using a robot camera freely moving remotely from the inside of the sewer line 10 conduits 14. At this time, in the search step 100, the moving distance of the robot camera is calculated to determine the maintenance position.

When the repair position of the sewer line 10 is determined, the repair position of the conduit 14, the bleed 14a portion inner wall, that is, the food waste or sediment of living sewage accumulated around the bleed 14a part of the conduit 14 It has a washing step 120 in which the maintenance space is provided clean by removing the precipitates of the back by a water washing method using a high-pressure sprayer.

After the washing process around the sewer line 10 and the flaw 14a, the thermosetting repair material 30 for repairing the flaw 14a of the sewer line 10 and the conduit 14 on the ground is around the pressure tube 49 of the packer 40. After wrapping, the packer 40 has a packer loading step 130 that allows the packer 40 to be introduced into the conduit 14 through the manhole 12 of the sewer line 10.

When loading of the packer 40 in the conduit 14 of the sewer pipe 10 is completed, the packer 40 is moved to the repair position found in the search step 100, that is, the pressing action chamber of the packer 40 as shown in FIG. 5. In the state in which the 41 is contracted, the packer 14 is moved to the position of the flaw 14a of the sewer pipe 10 and the conduit 14a to have a maintenance waiting step 140.

As shown in FIG. 6, the high temperature and high pressure fruit supplied from the ground boiler 20 is pressurized to the packer 40 waiting to be repaired by moving to the conduit 14 and the flaw 14a portion of the sewer line 10 to be repaired. As the filling chamber 41 is filled, the pressure tube 49 expands, and the thermosetting repair material 30 is transferred to the surface of the flaw 14a and the repair material is applied 150.

When the application process of the thermosetting repair material 30 to the conduit 14 of the sewer line 10 to be repaired is completed, the fruit is recovered to the boiler 20 side through the recovery port 41a of the packer 40 pressurizing action chamber 41. The packer 40 was repeatedly and continuously recirculated toward the pressurized action chamber 41, thereby maintaining the pressure maintaining and heating temperature of the pressurized action chamber 41 uniformly while thermally curing the thermosetting repair material 30 for a certain period of time. It has a repair material curing step 160 to be integrated with the Shiki flaw (14a).

When the repair material curing step 160 is completed, the supply of the fruit to the packer 40 pressurizing action chamber 41 is stopped to cause the expanded pressurized tube 49 to contract, and then from the conduit 14a of the sewer pipe 10 It consists of a packer recovery step 170 for removing the packer 40 in the reverse order of the loading step 130 described above.

The non-excavated sewer line repair method will be used to repair conduit blemishes in a predetermined sewer line.

Although one embodiment of the present invention has been described, the present invention is not limited to this, and changes may be made within the scope of the claims.

10: sewer line 12: manhole 14: unit conduit
20: boiler
30: thermosetting repair material
40: packer 41: pressurization chamber 42: support tube 44: maguri
46: Manifold 48: Base tube 49: Pressurized tube

Claims (5)

delete delete Unit conduits between the manholes placed at a distance are installed in a buried manner, and in the sewer pipeline draining sewage or rainwater, defects such as pipe separation, cracks, and damage caused by an external environment are applied as a thermosetting repair material for composite sheets. As a repair device for a non-drilling sewage pipeline repaired by repairing,
A boiler through which the fruit for thermal curing of the thermosetting repair material is supplied through the manhole from the ground;
The wheels are provided at both ends of the support pipe disposed in the longitudinal direction from the center of the unit conduits of the sewer pipe, and the cap-type maguros are disposed opposite to each other with an outer diameter less than the inner diameter of the conduit, and inside one of the maguri. A manifold that receives the fruit supplied from the boiler through an inlet and distributes it to a plurality of branch pipes, and the branch pipes of the manifold are opened outwardly and connected to the inner walls of the unit conduits of the sewer pipe. A packer equipped with a base tube installed adjacent to each other and a pressure action chamber formed by wrapping both ends of the base tube around the outward opening side of the base tube in a binding tube and contracting and expanding; And
The packer has a header connected to the branch pipes of the manifold in the center of the lengthwise direction of the base pipe, and a dispersion wing that spreads the fruit flowing through the branch pipes of the manifold evenly to the pressing action chamber. Includes what is provided,
Here, the thermosetting repair material is wound around the packer to be transported to the flaws of the sewer line, and the transported thermosetting repair material is applied to the flaws by using a pressure tube that expands to the filling pressure of the fruit in the packer pressing action chamber. Repair apparatus for a non-drilling sewage pipe, characterized in that one. delete delete

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