KR20070033103A - Apparatus for repairing sewer pipe and heating unit - Google Patents

Abstract

A repair apparatus for a pipeline is provided to minimize heat loss by generating heat directly in a tube by a hot wire, to heat up air in a tube more quickly by installing a hot wire unit in a tube and to make installation and separation easy by manufacturing a hot wire unit in the unit length and assembling according to the length of a pipeline. The repair apparatus for a pipeline contains a tube placed along a pipeline such as a water pipe or a sewer pipe and hardened by heat generated from a hot wire unit, closing units installed on both ends of the tube 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(42) generated by power sources, a guard(44) put around the hot wire not to be contacted to the hot wire and provided with rings(44a,44b) installed to the hot wire or the sockets, and sockets(45,46) installed to transfer electric current to the hot wire, and a compressor 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.

Description

Apparatus for repairing sewer pipe and heating unit

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 piping 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 hot wire unit of a repair device for a pipe, and more particularly, to a hot wire unit of a repair device for a pipe that is easily installed at a work site by producing a heat wire unit in a unit standard.

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, an object of the present invention is to provide a plumbing repair device that minimizes the heat loss by generating heat directly through the heating wire inside the tube.

Another object of the present invention is to provide a hot wire unit of a pipe repairing device to install a hot wire unit inside the tube to heat the air inside the tube more quickly and minimize heat loss.

Still another object of the present invention is to provide a hot wire unit of a pipe repairing device that is easy to install and separate by making a unit standard of the hot wire unit so that the installation and recovery of the hot wire unit can be easily performed in the field.

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; It is installed inside the tube, characterized in that configured to include a heating unit for generating heat by the applied power.

The hot wire unit of the pipe repairing apparatus according to the second aspect of the present invention is characterized in that it comprises a hot wire which is installed inside the tube to be installed in the pipe to heat the heat by the power source to cure the tube by heat.

Here, the heating wire unit is manufactured in a unit length and a plurality are assembled, and both ends of the heating wire are provided with sockets for communicating power.

In addition, the heating wire unit is configured to further include a guard surrounding the circumference of the heating wire, a ring is provided at both ends of the guard, the ring installed at one end of the guard is fixed to the heating wire, the other end of the ring is installed in the heating wire Characterized in that installed to move along.

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 40 installed through the tube 20 to generate predetermined heat in the tube 20 to cure the tube 20. ), A compressor 50 for providing a predetermined pressure inside the tube 20 to closely contact the tube 20 to the inner wall of the sewer pipe 10, and a power supply for applying a predetermined power to the hot wire unit 40. It comprises a unit (not shown).

The pipe 10 is a constant pipe or sewage pipe.

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 so as 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 to be connected to each other To be able.

As shown in Figures 2 to 5, the sealing units 30, 35 are respectively installed at both ends of the tube 20 to seal the tube 20, the inlet sealing unit installed on the inlet side 30 and an outlet closure unit 35 installed on 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, it is 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.

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 Powered 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 sectional view showing a piping step of the piping repair method according to the present invention, Figure 12 is the present invention FIG. 13 is a cross-sectional view illustrating a heating wire unit insertion step of the pipe repair method according to the present invention, and FIG. 13 is a cross-sectional view illustrating 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 air inside the tube 20, the sealing unit 30, 35 is installed Injecting (S30), and connecting the hot wire unit 40 to the traction rope 100 to insert the hot wire unit 40 into the tube 20 (S40), and the tube 20 It is configured to include a step (S50) for heating the air in the tube 20 by supplying a current to the heating 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.

On the other hand, although not shown in the main drum (74a) is rotated by the power tool is a one-way clutch is installed to prevent the rope 75 is unwinding, the configuration of the one-way clutch is a general configuration, so a detailed description 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).

Air injection 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). ).

Meanwhile, the tube 20 may be expanded by injecting water, which is a fluid instead of the air injection step (S30), and the curing of the tube 20 in the expanded state by injecting the water is performed by the heating 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 by the towing rope 100 installed inside the tube (20) The tube 20 is moved inside.

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 one by one in front of the inlet closure unit 30 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 safety accidents, 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 to cause sagging in the tube 20. .

When the tube 20 is cured after the heating step S50, the worker cuts the exposed portion of the manhole 110 by installing the sealing units 30 and 35, and 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.

The repairing apparatus for a pipe according to the present invention generates heat directly through a heat ray unit inside a tube impregnated with a thermosetting resin, thereby facilitating generation of heat for curing the tube and minimizing heat loss.

In addition, the repair device for the pipe according to the present invention hardly generates noise because it hardens the tube using heat generated from the hot wire unit, unlike hot air, and thus has an easy effect at night.

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, since the repairing apparatus for piping according to the present invention hardens the tube by using heat generated by the power source, since the power can be directly supplied from the surroundings in which the piping is installed, there is an effect of simplifying the entire apparatus.

In addition, since the repair device for the pipe according to the present invention assembles and installs a heating unit made of a unit length, the installation of the heating unit is completed only by assembling an appropriate number of heating unit according to the length of the piping.

In addition, the hot wire unit of the repair device for the pipe according to the present invention has an effect of preventing the hot wire and the tube contact because the guard is further installed around the hot wire.

In addition, since the heating wire unit of the repair device for the pipe according to the present invention is installed so that one end of the guard installed around the heating wire can be moved along the heating wire, there is an effect of reducing the diameter in the process of inserting through the sealing unit.

In addition, since the heating unit of the repair device for the pipe according to the present invention generates heat directly at both ends of the inlet and outlet of the pipe, it generates uniform heat inside the tube, thereby maintaining a uniform curing time of the tube. .

Claims (7)

A tube installed in the pipe and cured by heat; 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, Pipe repair apparatus, characterized in that the hot wire unit is manufactured and assembled in plurality. Installed inside the tube to be installed in the pipe to cure the tube by heat, Hot wire unit of a plumbing repair device, characterized in that it comprises a heating wire that is generated by the power source. The method according to claim 3, The heating unit is a heating unit of the piping repair apparatus, characterized in that the plurality is assembled to a unit length. The method according to claim 3, Hot wire unit of the plumbing repair device, characterized in that the socket for communicating the power is installed at both ends of the heating wire. The method according to any one of claims 3 to 5, The heating unit is a heating unit of the pipe repair apparatus, characterized in that further comprises a guard surrounding the circumference of the heating wire. The method according to claim 6, Rings are installed at both ends of the guard, and a ring installed at one end of the guard is fixed to the heating wire, and the other end of the ring is installed to move along the heating wire.

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