KR20070033102A - Apparatus for repairing sewer pipe and therefor process - Google Patents

Abstract

A repair apparatus and a repair method for a pipeline are provided to generate heat for hardening a tube easily or to minimize heat loss by generating heat directly in a tube impregnated with thermosetting resin using a hot wire unit and to execute work with minimum noise by hardening a tube using heat generated by a hot wire unit. The repair apparatus for a pipeline contains: a tube(20) impregnated with thermosetting resin, placed along a pipeline(10) to be repaired and hardened by heat generated from a hot wire unit; inlet and outlet closing units(30) installed on both ends of the tube by a fixture(70) to close up the tube and to keep the inside of the tube at the appointed pressure; a hot-wire unit(40) installed through the tube to generate heat in the tube and to harden the tube and composed of a hot wire generated by power sources and a guard put around the hot wire not to be contacted to the hot wire; a compressor(50) applying pressure to the inside of the tube to adhere the tube closely to an internal wall of the pipeline; and a power supply unit supplying power to the hot wire unit. The repair method for a pipeline comprises the steps of placing a tow rope on the inside of a tube and installing the tube in a pipeline, installing closing units on both ends of the tube by a fixture, supplying a fluid to the inside of the tube installed with the closing unit, connecting a hot wire unit to the tow rope and inserting the hot wire unit to the inside of the tube, supplying electric current to the hot wire unit inserted to the inside of the tube and heating up the inside space of the tube.

Description

Apparatus for repairing sewer pipe and therefor process}

1 is a cross-sectional view showing a pipe repair apparatus according to the present invention

Figure 2 is a view showing a sealing unit of the piping repair apparatus according to the present invention

Figure 3 is a sectional view of the inlet side insertion port of the sealing unit according to the present invention

Figure 4 is a cross-sectional view of the outlet side insertion port of the sealing unit according to the present invention

5 is a front view showing the fixing mechanism of the sealing unit according to the present invention

6 is a front view showing a heating unit according to the invention

7 is a front view showing the connection socket of the heating unit according to the invention

8 is a flow chart illustrating a piping repair method according to the present invention

9 is a cross-sectional view showing the tube arrangement step of the piping repair method according to the invention

10 is a cross-sectional view showing the sealing unit connection step of the piping repair method according to the invention

11 is a cross-sectional view showing the air injection step of the piping repair method according to the invention

12 is a cross-sectional view showing a heating unit insertion step of the piping repair method according to the invention

13 is a cross-sectional view showing a heating step of the pipe repair method according to the present invention

<Explanation of symbols on main parts of the drawings>

10: piping 20: tube

30: inlet closure unit 32: body

33: insertion hole 34: rubber packing

35: outlet closure unit 37: insertion hole

39: rubber packing 40: hot wire unit

42: hot wire 44: guard

44a, 44b: ring 45, 46: socket

50: compressor 70: fixture

72: main body 74: drum

75: rope 76: wire

77 hook 80, 85 hot wire supply drum

90: connecting unit 100: towing rope

The present invention relates to a repairing apparatus for a pipe and a method according thereto, and more particularly, to a repairing apparatus for a pipe for installing a heating wire inside the tube and curing the tube by the heat generated from the heating wire. .

Piping is a pipe that moves rainwater or domestic sewage, and is a structure that is installed by being buried underground. Therefore, when it is buried for a long time, cracks occur in the pipe. If the pipe ages in this way, the strength of the pipe decreases, cracks occur at the joints connecting the pipes, and sedimentation occurs in the pipes in which the settlement occurs, thereby obstructing the flow of sewage.

Therefore, the old pipes need to be excavated to replace the entire pipe by digging the ground or to repair the pipe through a separate process. Since the pipe replacement method is expensive and time-consuming, repairing the pipe without digging the pipe is currently mainly developed.

Here, the pipe has been repaired using the SET method developed in the conventional INA acquisition crop, and the biggest feature of the SET method is that after placing a tube impregnated with a thermosetting resin inside the pipe, blowing hot hot air into the tube. The tube is brought into close contact with the inner wall of the lower tube and the tube is cured.

However, the conventional pipe repair method has to continuously inject hot hot air into the tube for a predetermined time in order to cure the tube, thereby requiring a device such as a boiler, a generator, and a compressor for generating the hot air. have.

In addition, the conventional plumbing repair method has a problem that the heat loss is not only large because the hot air is continuously supplied to prevent the air from cooling inside the tube, and the noise generated in the process of supplying the hot air into the tube is considerably large. .

In addition, in the conventional pipe repair method, when the length of the tube is long, a temperature difference between the temperature in which hot air is injected and the temperature in which hot air is discharged is severely generated, which not only hardens the tube uniformly but also causes a long curing time of the tube. There is this.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a piping repair device and a repair method according to the heat generated by minimizing heat loss by directly generating heat through the heating wire inside the tube.

Another object of the present invention is to provide a pipe repairing device for repairing a pipe while minimizing the occurrence of noise and a repairing method thereof.

Still another object of the present invention is to provide a pipe repairing apparatus capable of maintaining a uniform temperature even in a long length of tube and a repairing method thereof.

The pipe repair apparatus according to the first aspect of the present invention for solving the above technical problem is a tube installed in the pipe and cured by heat; A provision unit for supplying a fluid to the inside of the tube to closely adhere the tube to the inner surface of the pipe; A sealing unit installed at both ends of the tube to prevent the fluid inside the tube from leaking; It is installed inside the tube, characterized in that configured to include a heating unit for generating heat by the applied power.

The pipe repairing method according to the second aspect of the present invention includes the steps of installing a tube in which the thermosetting resin is impregnated (S10); Installing a sealed unit at each end of the tube (S20); Injecting a fluid into a tube in which the sealing unit is installed (S30); Inserting the heating unit generated by the applied power into the tube (S40); And supplying a current to the hot wire unit to heat the fluid inside the tube (S50).

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a piping repair apparatus according to the present invention, Figure 2 is a view showing a sealing unit of the piping repair apparatus according to the present invention, Figure 3 is an inlet side insertion opening of the sealing unit according to the present invention is shown 4 is a cross-sectional view showing the outlet side insertion opening of the sealing unit according to the present invention, Figure 5 is a front view showing a fixing mechanism of the sealing unit according to the present invention, Figure 6 is a hot wire unit according to the present invention This is a front view is shown, Figure 7 is a front view showing a connection socket of the heating unit according to the invention.

Pipe repair apparatus according to the present invention, as shown in Figure 1, the tube 20 is inserted into the pipe 10 and cured, respectively installed on both ends of the tube 20, the inside of the tube 20 Sealing units 30 and 35 for maintaining a predetermined pressure, and a heating unit for penetrating the tube 20 and generating a predetermined heat inside the tube 20 to cure the tube 20 ( 40), a compressor 50, which is a pressurizing unit which provides a predetermined pressure inside the tube 20, and adheres the tube 20 to the inner wall of the sewer pipe 10, and supplies predetermined power to the hot wire unit 40. It is configured to include a power supply unit (not shown) to apply.

The tube 20 is impregnated with a thermosetting resin in a liquid state, is disposed long along the pipe 10 to be repaired, and is cured by the heat generated by the hot wire unit 40.

As shown in FIG. 6, the heating unit 40 has a heating wire 42 that generates heat by an applied power source, and a guard that surrounds the heating wire 42 to prevent contact with the heating wire 42 ( 44).

Here, the heating unit 40 may be formed as one long, but is preferably formed in a predetermined unit length so that the length can be adjusted according to the assembly and sewage pipe.

Thus, the length of the hot wire unit 40 is formed of 600mm ~ 1000mm, the hot wire unit 40 is connected is disposed inside the tube (10).

The heating wire 42 is formed of a material that generates heat by an applied power source, such as a heating wire, and sockets 45 and 46 are installed at both ends to transmit current to the connected heating wire unit 40.

And the heating wire 42 is a heating wire (not shown) is formed only in the inside, and a coating or protective film is formed on the outside to prevent a short circuit occurs, the heating wire and the socket (45, 46) is Connected to allow current to communicate.

The guard 44 is to prevent the tube 10 and the heating wire 42 from contacting when the heating unit 40 is inserted into the tube 10, and the rings 44a and 44b at both ends thereof. ) Is installed in the heating wire 42 or the socket 45, 46, in this embodiment the guard 44 is formed in a spiral, the diameter of the guard 44 is formed of 200 ~ 600mm It can be formed in various diameters depending on the pipe size of the shop floor.

One of the rings 44a and 44b may be fixed to the heating wire 42 or the socket 45 and 46, and the other 44b may be moved along the heating wire 42. It is desirable that it is not fixed.

In addition, the rings 44a and 44b are formed of a material in which current does not communicate with the heating wire 42 and is not deformed by heat generated from the heating wire 42. Heat-resistant plastics are used.

And the guard 44 is preferably formed of a material having an elasticity, so when one end of the guard 44 is moved in the front and rear direction when the heating unit 40 is inserted through the sealing unit 30 The diameter of the guard 44 is increased or decreased.

And the socket 45, 46 of the heating unit 40, as shown in Figure 7, one end 45 is formed in a male form, the other end 46 is formed in a female form can be connected to each other Make sure

As shown in Figures 2 to 5, the sealing unit 30, 35 is installed at both ends of the tube 20 to seal the tube 20, the inlet seal is installed on the inlet side It consists of the unit 30 and the outlet sealing unit 35 installed in the outlet side.

Here, the inlet / outlet sealing unit 30, 35 is formed in a cylindrical shape, the inlet / outlet sealing unit 30, 35 to fix the tube 10 to the sealing unit 30, 35. A fixing mechanism 70 is installed at an upper portion of the tube 10 to wrap and fix the end of the tube 10. The heating unit 40 is fixed while both ends of the tube 10 are fixed to the sealing units 30 and 35. Inserts 31 and 36 are respectively formed for insertion, and the air inlets 31 for injecting air to the tube 20 side are respectively formed in the bodies 32 of the inlet / outlet sealing units 30 and 35. Is formed.

Insertion opening 33 formed in the inlet closure unit 30, as shown in Figure 3, is composed of a check valve structure so that the air inside does not leak to the outside, the hot wire unit 40 from the outside to the inside It is configured to be movable.

Thus, the inlet closure unit 30 includes a cylindrical body 32 having an insertion hole 33 formed therein, and a rubber packing 34 installed at the insertion hole 33 to prevent the inside air from leaking outward. The end of the rubber 34 is formed to be biased toward the side on which the tube 20 is installed.

In addition, as shown in FIG. 4, the outlet sealing unit 35 has an insertion hole 37 through which the male socket 45 of the heating wire unit 40 is inserted, and the tube is also inserted into the insertion hole 37. (20) A rubber packing 39 is installed to prevent the air inside from leaking outward. Wherein the rubber packing 39 is formed of a material having elasticity, preferably formed of a heat-resistant material to withstand the heat generated from the heating unit (40).

A fixing mechanism 70 for fixing the tube 20 is installed at an upper portion of the body 32 of the inlet / outlet sealing unit 30, 35, and the fixing mechanism 70 of the tube 20. It is fixed to the body 32 by winding the outer side.

Thus, as shown in FIG. 2 or 5, the fixing mechanism 70 includes a main body 72 fixed to the body 32, a drum 74 installed on the main body 72, and the drum. A rope 75 wound around 74 and a wire 76 connected to the rope 75 to wind and tighten the tube 20.

In this embodiment, the drum 74 is configured to operate by using a power tool (not shown) of the user in this embodiment. Alternatively, a general power device (not shown) may be installed and operated.

In addition, the drum 74 is installed inside the main body 72 and is rotated by the power tool, and the rope is installed outside the main body 72 to allow the rope 75 to be smoothly wound. It consists of an auxiliary drum 74b for guiding the moving direction of 75.

Thus, when the main drum 74a is rotated, the rope 75 wound around the main drum 74a is wound or unwound in both directions.

And both ends of the rope (75) is provided with a hook (77) to be fixed by hanging the wire (76) tightening the tube (20).

In order to fix the tube 20 more firmly, the tube 20 wraps the body 32 of the inlet / outlet sealing unit 30, 35, and then wraps the wire 76 by at least one round. It is preferable to operate the drum 74 of the fixing mechanism 70 after the 20 is brought into close contact with the body 32.

In addition, the lower side of the main body 72 of the fixing mechanism 70 and the body 32 is configured to be rotated by a predetermined angle coupled to the pin 71, the main body 72 only when using the fixing mechanism 70 It is preferable to stand upright.

2, the pipe repair apparatus according to the present invention, the tube 20, the heating unit 40, the sealing mechanism 30, 35 is installed in the pipe 10, the compressor 50, on the ground The heating wire supply drum 80 and the connecting unit 90 for connecting the compressor 50 and the sealing mechanism 30, 35 is installed.

Here, the air compressed by the compressor (50) is connected to the connection unit (90) through a hose (92), and the connection unit (90) is again connected to the inlet closure unit (30), and the inlet closure unit The compressed air injected through the 30 swells the inside of the tube 20.

In addition, when a liquid fluid is supplied into the tube 20, a pump may be used instead of the compressor 50.

On the other hand, the connection unit 90 measures the pressure and temperature inside the tube 20 through the air of the hose 92, and displays the measured pressure and temperature, and if the pressure is insufficient valves (not shown) Open and close) to move the air to the tube (20).

In addition, the hot wire supply drum 80 is connected to a power supply unit (not shown) for supplying power to the hot wire unit 40, the power supply unit may be provided with a separate generator, but in the present embodiment Power is supplied directly from the telephone pole or transformer.

This allows the contractor to properly select the use of the power supply unit according to the situation of the place where the plumbing repair work is carried out.

Hereinafter, the piping repair method according to the present invention in more detail as follows.

8 to 13 is a process diagram showing a pipe repair method according to the present invention, Figure 8 is a flow chart showing a pipe repair method according to the present invention, Figure 9 is a tube arrangement step of the pipe repair method according to the present invention 10 is a cross-sectional view showing a sealing unit connection step of the piping repair method according to the present invention, Figure 11 is a cross-sectional view showing an air injection step of the piping repair method according to the invention, Figure 12 13 is a cross-sectional view showing a heating unit insertion step of the pipe repair method according to the invention, Figure 13 is a cross-sectional view showing a heating step of the pipe repair method according to the present invention.

8 to 13, the pipe repair method according to the present invention includes installing the tube 20 inside the pipe 10 with the towing rope 100 disposed inside the tube 20. (S10) and the step of installing the sealing unit 30, 35 respectively at both ends of the tube 20 (S20), and the fluid inside the tube 20, the sealing unit 30, 35 is installed Supplying (S30) and connecting the heating unit 40 to the towing rope 100 to insert the heating unit 40 into the tube 20 (S40) and the tube 20 It is configured to include a step (S50) of heating the air inside the tube 20 by supplying a current to the heat line unit 40 inserted therein.

Tube arrangement step (S10) is inserted into the tube 20, the inside of the tube 20, the thermosetting resin is impregnated, and the tube 20 into which the towing rope 100 is inserted is placed long in the pipe 10 The process of disposing the tube 20 in the pipe 10 is performed by an operator.

Sealing unit connection step (S20) is a step of installing the inlet / outlet sealing units 30, 35 respectively at both ends of the tube 20, the sealing unit 30, 35 and the tube 20 The fixing is made by the fixing mechanism 70.

2 or 5, the operator inserts the sealing unit 30, 35 body 32 into the cylindrical tube 20, the body 32 and the tube 20 is A wire 76 is wound around the overlapped portion to fix the tube 20 primarily. Then, the worker connects the hook 77 and the wire 76 installed at the end of the wire 76, and then rotates the main drum 74a installed on the main body of the fixing mechanism 70, the main drum Rope 75 connected to the hook 77 by the rotation of 74a is wound around the main drum 74a. Here, the worker rotates the main drum 74a through a portable tool such as a portable tool, and when the wire 76 is sufficiently pulled to fix the tube 20, the worker rotates the main drum 74a. Stop.

Meanwhile, although not shown, a one-way clutch is installed on the main drum 74a which is rotated by the power tool to prevent the rope 75 from being unwound, and the one-way clutch has a general configuration. Omit.

In addition, the fixing of the outlet sealing unit 35 and the tube 20 also omits the same detailed description as described above.

Both ends of the towing rope 100 inserted into the tube 20 are inserted into the sealing units 30 and 35 before the sealing units 30 and 35 and the tube 20 are fixed. It is drawn out through (33) (37).

Fluid supply step (S30) is a step for injecting air into the tube 20 to close the outer surface of the tube 20 to the inner surface of the pipe 10, the injection of the air is the compressor (50) Is done through.

In this case, when the connection between the tube 20 and the sealing units 30 and 35 is completed, the worker may connect the compressor 50 and the connection unit 90 and the connection unit 90 and the sealing unit 30 and 35 to each other. When the hose 95 is connected and the connection of the hose 95 is completed, the operator injects the compressed air generated by operating the compressor 50 into the tube 20.

Then, the connection unit 90 senses the temperature and pressure inside the tube 20 through the hose 92, and when the tube 20 is sufficiently inflated and in close contact with the pipe 10 (S40). ).

On the other hand, in the fluid supply step (S30) may inflate the tube 20 by injecting water that is a fluid instead of the air, the curing of the tube 20 in the expanded state is injected water Made by unit 40.

Hot wire unit inserting step (S40) is a step of inserting the hot wire unit 40 into the expanded tube 20, the hot wire unit 40 to the towing rope 100 installed inside the tube (20) It is moved into the tube 20 by the.

Here, the heating wire unit 40 is wound around the inlet heating wire supply drum 80, one end of the towing rope 100 is connected to the heating wire unit 40 of the inlet heating wire supply drum 80, and the other end thereof is an outlet. It is connected to the side heating wire supply drum (85).

Therefore, when the outlet side heating wire supply drum 85 is rotated, the towing rope 100 is wound while the heating wire units 40 wound around the inlet side heating wire supply drum 80 are released and penetrates the inlet sealing unit 30. Is moved into the tube (20).

Here, the insertion hole 33 of the inlet sealing unit 30 has a hole formed in the center portion so that the hot wire 42 of the hot wire unit 40 can be inserted, and the guard 44 of the hot wire unit 40 is inserted. The slits are formed long in the upward direction in the center hole.

Thus, the heating wire 42 of the heating unit 40 is moved through the hole of the insertion hole 33 and the operator can insert the guard 44 into the tube 20 while rotating the guard 44 formed in a spiral shape. Can be.

Particularly, since only one side of the guard 44 is fixed and formed of an elastic material, the guard 44 may be easily inserted even in the process of being inserted while being rotated as described above.

On the other hand, in the present embodiment has been described that the heating unit 40 is wound around the heating wire supply drum 80, on the contrary, while the worker is assembling the individual heating unit 40 in front of the inlet closure unit 30 one by one The heating unit 40 may be installed.

And when one end of the towing rope 100 passes through the insertion hole 37 of the outlet closure unit 35, the operator determines the operation of the outlet-side heating wire supply drum 85, the The power line is connected to the sockets 45 and 46.

Here, the operator disconnects the hot wire units 40 exposed outside the inlet sealing unit 30 and connects the power lines to the sockets 45 and 46.

And in the heating step (S50) after the installation of the heating wire unit 40 and the connection of the power line is completed, the operator heats the heating wire unit 40 by inputting power to the heating wire unit 40 inside the tube 20 Heat the air directly.

Here, the air heated in the tube 20 is minimized to be leaked out by the sealed units 30 and 35, and the compressor 50 is continuously maintained at a predetermined pressure in the tube 20. By doing so, the adhesion between the tube 20 and the pipe 10 is maintained in the curing process.

Although not shown, a circuit is provided in the heating wire supply drums 80 and 85 to block inflow of overcurrent and the like, and controls the power supplied to the power line so that the heating unit 40 maintains a predetermined temperature. .

In particular, the temperature inside the tube 20 is preferably maintained at 60 ~ 80 ℃ that the thermosetting resin is cured stably.

On the other hand, the present invention prevents the occurrence of a safety accident, such as a short circuit, because the hot wire 42 is protected by the guard 44 even if a hole is generated in the tube 20 and the tube 20 sags.

And when the tube 20 is cured after the heating step (S50), the operator is cut the exposed portion of the manhole 110, the sealing unit 30, 35 is installed, a separate drilling robot (not shown) Through drilling the connecting portion of the lower pipe 10 and the sewer 15 connected to the home to complete the construction.

14 is a cross-sectional view showing a piping repair apparatus according to a second embodiment of the present invention.

As shown in FIG. 14, the second embodiment is the same as the first embodiment except that the repair device is configured to repair only a part of the pipe 10 in the first embodiment.

Hereinafter, since the repairing method of the pipe according to the second embodiment is the same as the first embodiment, a detailed description thereof will be omitted.

The repairing device and the repairing method of the pipe according to the present invention generate heat directly through the heating unit in the inside of the tube impregnated with the thermosetting resin, thereby facilitating the generation of heat for curing the tube and minimizing the heat loss. have.

In addition, the repair device for the pipe and the repair method according to the present invention hardly generate noise because the tube is cured using heat generated from the hot wire unit without using hot air, unlike in the related art, thus making it easy to work at night. There is one effect.

In addition, the repair device for the pipe according to the present invention has an effect that is easy to move because the number and volume of the equipment is reduced since the boiler is not used as compared to the conventional method.

In addition, the repairing apparatus of the pipe according to the present invention and the repairing method thereof accordingly harden the tube by using heat generated by the power source, so that power can be directly supplied from the periphery in which the pipe is installed, thereby simplifying the entire apparatus.

Claims (9)

A tube installed in the pipe and cured by heat; A pressurizing unit supplying a fluid to the inside of the tube to closely contact the tube to an inner surface of the pipe; A sealing unit installed at both ends of the tube to prevent the fluid inside the tube from leaking; Installed inside the tube, the piping repair apparatus comprising a heating unit for generating heat by the applied power. The method according to claim 1, The heating unit is a heating wire that generates heat by a power source; Plumbing repair device characterized in that it comprises a socket which is installed at both ends of the heating wire to communicate power. The method according to claim 2, The hot wire unit is a piping repair apparatus characterized in that it further comprises a guard surrounding the circumference of the hot wire. The method according to claim 1, The sealing mechanism is a pipe repair device, characterized in that the insertion hole is formed so that the hot wire unit can be inserted into the tube. The method according to claim 1, The closure mechanism is further provided with a fixing mechanism for wrapping the tube to secure the closure mechanism, The fixing mechanism includes a wire surrounding the outside of the tube; And a drum for winding the wire to closely adhere the tube to the closure mechanism. Installing a tube in which the thermosetting resin is impregnated (S10); Installing a sealed unit at each end of the tube (S20); Injecting a fluid into a tube in which the sealing unit is installed (S30); Inserting the heating unit generated by the applied power into the tube (S40); Supplying a current to the heating unit is a pipe maintenance method comprising the step of heating the fluid in the tube (S50). The method according to claim 6, When the tube is disposed in the tube in the tube arrangement step (S10), the traction rope is characterized in that it is arranged in the tube. The method according to claim 6, The hot wire unit insertion step (S40) is a pipe repair method characterized in that is inserted into the tube through the sealed unit. The method according to claim 6, Piping repair method, characterized in that for connecting the electric wire and the socket of the hot wire unit in the hot wire unit insertion step (S40).

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