KR101256216B1 - Apparatus for repairing the pipe line in non-excavating type - Google Patents

Abstract

PURPOSE: A non-excavating type pipe line repairing device is provided to simplify the structure of a hardening agent and to reduce the hardening time of the hardening agent by indirectly heating a repairing felt which adheres to the inner surface of a pipe line. CONSTITUTION: A non-excavating type pipe line repairing device(100) comprises an expansion member(110), a packer(120), and a heating unit. The expansion member is wound on the outer surface of a repairing felt and is connected to a compressed air supply unit in order to be expanded by being supplied with compressed air from the outside. The packer is inserted into the expansion member by touching the inner surface of the expansion member. The heating unit hardens the repairing felt, which adheres to the inner surface of the pipe line, with hot wind which is delivered through the packer and the expansion member. The heating unit has an inner insertion pipe(132) which forms a fluid passage for flowing the hot wind in one direction.

Description

Apparatus for repairing the Pipe Line in Non-Excavating Type}

The present invention relates to a device for repairing damaged parts of a pipeline such as a sewage pipe by non-excavation, more specifically, by indirectly heating the repair felt in close contact with the inner surface of the pipeline can shorten the curing time of the curing agent, The present invention relates to a non-excavated pipeline repair apparatus that can simplify a hardener heating structure.

In general, the upper and drainage ducts (hereinafter referred to as "ducts") buried in the ground are widely used in various forms according to the purpose of use.

In the case of such an underground buried pipe, there is a part that is partially damaged due to an external force, ground subsidence and various deterioration phenomena caused by the vehicle running on the road.

That is, in the case of the water pipe, corrosion occurs, and a large amount of water leaks into the ground, the drinking water is contaminated by the introduction of the rust, and cracks are generated in the sewer pipe, Causing the problem of polluting the natural environment. .

As one of the repair methods for repairing old damaged pipeline where these damages occurred, unreinforced pipeline repair method is a repair method in which repair pelt is adhered to an old buried pipeline where cracks and damage occur without digging roads and grounds, Because it is unnecessary to carry out road excavation and repair after excavation, it has many advantages in terms of workability, reliability and economy.

This is accomplished by using a cylindrical repairing device constituted by a special rubber and using a cylindrical repairing device constituting a body portion. After moving the repairing felt, which is a reinforcing material, on the outer surface of the expanding member to the repair point of the channel, The expansion member is inflated by injecting air into the interior of the conduit so that the repairing felt is brought into close contact with the inner surface of the conduit, and then the defective portion is cured by curing the repairing felts to adhere completely to the inside of the conduit. After the hardening of the repair felt material is completed, the air in the expansion member is discharged and contracted, and then the maintenance device in the pipeline is discharged to the outside and collected.

Korean Patent Laid-Open Publication No. 2007-0023483 (2007.2.28) has an expansion member for contacting the inner surface of the reinforcement with the inner surface of the conduit by expanding the outer surface of the body to which the reinforcement is wound in the radial direction by compressed air injected into the body; The left and right ends of the expansion member are fixed, and a pair of brackets having at least one air outlet port for injecting and discharging compressed air into the expansion member, and the left and right ends are connected to the left and right pair of brackets, respectively. Connection means for maintaining the distance between the left and right pair of brackets, and the heat generating means for providing a heat source which is located in the inner space of the expansion member and the heat to harden the reinforcement by radiating heat to the inner surface of the expansion member when the power is applied Disclosed is a radiation-curable conduit repair apparatus including a power supply unit for supplying power to generate heat.

However, such a repair device has advantages in that it has a heating means for providing a heat source to the entire inner surface of the expansion member to heat the expansion member using radiant heat, and shorten the curing time of the reinforcement through the heated expansion member. However, the method of combining the heating element with the inner surface of the expansion member is very complicated, the overall weight of the device is heavy, and the movement and facility management is cumbersome, so it is difficult to perform the conduit repair work smoothly. .

In addition, it is difficult to replace the heat source installed inside the expansion member with a new one when the heat source is damaged and damaged, there is a problem that the work is excessively required.

The present invention is to solve the problems as described above, the object is to indirectly heat the repair felt in close contact with the inner surface of the pipe can shorten the curing time of the curing agent, the ratio that can simplify the curing agent heating structure To provide an excavated pipeline repair device.

As a specific means for achieving the above object, the present invention, in the device for repairing the damaged part of the pipeline by hardening the repair felt impregnated with the curing agent on the inner surface of the pipe line, the repair felt is wound on the outer surface An expansion member connected to the compressed air supply means so as to expand the volume by the air supplied from the outside; A hollow park cylindrical packer disposed to be inserted into the expansion member so that the inner surface and the outer surface of the expansion member are interviewed; Inserted into the inside of the packer to form a flow path for curing hot air flow in one direction, and has a hot air inlet connected to the hot air supply means to supply the hot air for curing, and discharges the curing hot air heat exchanged with the packer to the outside Non-excavation type comprising a heating unit having an inner insertion pipe having a hot air outlet to heat the repair felt in close contact with the inner surface of the conduit by the heat source of the hardening hot air transmitted through the packer and the expansion member Provide pipeline repair equipment.

Preferably, the inner insertion tube seals a high-temperature atmosphere space in which hot air flows in one direction between the inner surface of the packer and the outer surface of the inner insert tube by contacting an outer end of the inner surface of the packer. The hot air inlet and the hot air discharge port is provided with a pair of left and right closed plates selectively installed.

Preferably, the inner insertion tube includes an inner contact tube inserted into the inner surface of the packer so that the outer surface is interviewed, the outer end is in contact with the inner surface of the left and right ends of the inner contact tube and the inner surface of the inner contact tube; It is provided with a pair of left and right airtight plates in which the hot air inlet and the hot air outlet are selectively installed while sealing a high temperature atmosphere space forming a flow path in which the hot air flows in one direction between the outer surfaces of the inner insertion pipe.

More preferably, the inner insertion tube is at least one hollow cylinder-shaped flow path which is in contact with any one of the left and right pair of sealing plates so that the flow path of the hot air supplied through the hot air inlet can extend in the longitudinal direction of the packer A forming tube is provided.

More preferably, the inner insertion pipe is provided with at least one spiral body so as to extend the flow path of the hot air supplied through the hot air inlet spirally along the longitudinal direction of the packer.

More preferably, the inner insertion pipe is provided with a rectifying plate spaced apart from the sealing plate on which the hot air inlet is installed at a predetermined interval and through a plurality of rectifying holes.

Preferably, the inner insertion pipe further includes a moving part to facilitate the entry into the pipeline for the pipeline repair work, the moving part fixed length of the fixed length is mounted on the inner surface of the inner insertion pipe, the inner insertion pipe Is provided on the end of the fixed bracket exposed to the outside of the wheel support having a traveling wheel at both ends.

The present invention as described above has the following effects.

(1) The inner surface of the conduit by a heat source of hardening hot air transmitted through the packer and the expansion member by having an inner insertion tube for forming a curing hot air in one direction inside the packer combined with the expansion member wound with the repair felt. The repair felt adhered to it can be thermally cured in a short time, so the repair work can be easily and quickly performed to increase the productivity of the repair work.

(2) The structure of the heating part that heat-cures the repair felt impregnated with the curing agent is simple and simple, so that the weight of the device can be reduced, the device can be moved and the facility management becomes easier, and the repair of the pipeline is more smoothly. On the other hand, the effect of reducing the equipment maintenance is obtained.

1 is an external perspective view showing a non-excavated pipeline repair apparatus according to a first embodiment of the present invention.
Figure 2 is a cross-sectional perspective view showing a non-drilling pipeline repair apparatus according to a first embodiment of the present invention.
Figure 3 is a longitudinal cross-sectional view showing a non-drilling pipeline repair apparatus according to a first embodiment of the present invention.
Figure 4 is a longitudinal cross-sectional view showing a non-drilling pipeline repair apparatus according to a second embodiment of the present invention.
5 is a view illustrating a non-excavation pipeline repair apparatus according to a third embodiment of the present invention.
(a) is an external perspective view of an inner insertion tube having a spiral body,
(b) is a longitudinal cross-sectional view.
6 is a view illustrating a non-excavation pipeline repair apparatus according to a third embodiment of the present invention.
(a) is a perspective view of the rectifying plate of the inner insertion pipe,
(b) is a longitudinal cross-sectional view.
7a and 7b is a state diagram used in the non-excavation pipeline repair apparatus according to a preferred embodiment of the present invention.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the non-excavated pipeline repair device 100 according to the preferred embodiment of the present invention is provided separately in a state in which the repair felt 101 impregnated with the hardener is in close contact with the inner surface of the pipe. It includes an expansion member 110, a packer 120 and a heating unit 130 to heat repair the repair felt by a heat source to repair the damaged portion of the pipe.

The expansion member 110 is connected to the compressed air supply means (not shown) so that the repair felt 110 is wound on the outer surface, the volume is expanded by the compressed air supplied from the outside.

The expansion member 110 includes an outer shell in contact with the repair felt 110 wound on the outer surface, the inner member in contact with the outer surface of the packer 120 and a connection member integrally connecting both ends of the inner and outer shells. It is preferably made of a tubular body, made of a rubber material so that the volume is expanded when compressed air injection.

In addition, any one of the left and right side connecting members integrally connecting the both ends of the inner and outer sheaths is provided with an air inlet (115) connected to the compressed air supplying means through a supply line, and the remaining one connecting member And an air discharge port for discharging the compressed air injected to return to the original state by shrinking the expanded member 110.

Accordingly, the repair felt 110 wound on the outer surface of the expansion member 110 may be in close contact with the inner surface of the conduit by the expansion member 110 that is expanded in volume when the compressed air is supplied.

The packer 120 is inserted into the expansion member of the hollow-cylindrical tubular body shape and is provided with a hollow-cylindrical metal tube in which the inner surface and the outer surface of the expansion member are interviewed.

The packer 120 smoothly supplies the heat transferred through the heating part 130 to the repair felt 101 through the expansion member 110 without heat loss to provide a hardener impregnated with the repair felt 101. It is preferably made of a metal material such as aluminum and copper having excellent thermal conductivity so as to shorten the curing time by thermal curing.

Here, the packer 120 is preferably provided with a hollow cylindrical metal tube having a length relatively larger than the length of the expansion member is the repair felt is wound on the outer surface.

The heating unit 130 is a curing hot air to heat the repair felt 101 in close contact with the inner surface of the pipe by the heat source of the curing hot air transmitted through the packer 120 and the expansion member 110. It includes an inner insertion pipe 132 is inserted into the interior of the packer 120 forming the flow path in one direction.

The inner insertion pipe 132 is provided with a hot air inlet 134a connected through a hot air supply means (not shown) and a supply line to supply the hot air for curing, and hardened by heat exchanged with the packer 120. It is provided with a hot air outlet (135a) for discharging the hot air to the outside.

Here, the inner insertion tube 132 is in contact with the outer circumferential end of the inner peripheral surface of the left and right ends of the packer 120, the hot air flows between the inner surface of the packer 120 and the outer surface of the inner insertion tube 132 in one direction It is provided with a pair of left and right sealing plates 134 and 135 to selectively install the hot air inlet 134a and the hot air outlet 135a while sealing the high temperature atmosphere space forming the flow path.

In addition, between the packer 120 and the inner insertion pipe 132, as shown in Figure 3, the passage of the hot air supplied through the hot air inlet 134a in the longitudinal direction of the packer 120 At least one hollow-cylindrical flow path forming tube 136 having one end in contact with one of the pair of left and right sealing plates 134 and 135 to extend.

Here, the flow path forming tube 136 has an outer diameter smaller than the inner diameter of the packer 120 and larger than the outer diameter of the inner inserting tube 132, and the length of the packer 120 and the inner inserting tube 132. It is preferable to consist of a hollow cylinder member which has a shorter length.

In addition, the flow path forming tube 136 is a double pipe having different outer diameters so that the hot air inlet 134a and the hot air outlet 135a may be installed in different sealing plates 134 and 135, respectively. Although illustrated and described as being provided in a form, it is not limited thereto, and may be provided in a single tube form so that the hot air inlet 134a and the hot air outlet 135a may be installed in any one of the pair of closed plates 134 and 135. have.

Accordingly, the hot air supplied through the hot air inlet 134a is injected through a passage between the inner surface of the packer 120 and the outer surface of the flow path forming tube 136 to be parallel to the longitudinal direction of the packer 120. Heated to heat the packer 120 while proceeding in one direction, and then turned 360 degrees while extending through the gap between the free end of the flow path forming tube 136 and the corresponding sealing plate 135 and extended in the opposite direction. It is discharged to the outside through the hot air outlet (134a).

In addition, as shown in Figure 4, the inner insertion pipe 132 is inserted so that the outer surface is interviewed on the inner surface of the packer 120, so as to be separated and separated from the inner surface of the packer 120 It may include an inner contact tube (139).

Hot air flows in one direction between the inner surface of the inner contact tube 139 and the outer surface of the inner insertion tube 132 at left and right ends of the inner insertion tube 132 and the inner contact tube 139. The hot air inlet 134a and the hot air outlet 135a may be provided with a pair of left and right closed plates 134 and 135 to seal the high temperature atmosphere space.

Here, the outer circumferential ends of the sealing plates 134 and 135 extending at right angles from the left and right ends of the inner insertion pipe 132 are welded to the outer circumferential surfaces of the left and right ends of the inner contact tube 139.

Between the inner insertion pipe 132 and the inner contact pipe 139 is provided with a hollow-cylindrical cylindrical flow path forming tube 136, one end of which is in contact with one of the left and right pair of sealed plates 134, 135 through the hot air inlet 134a The flow path of the hot wind supplied may extend in the longitudinal direction of the packer 120.

Accordingly, the inner insertion tube 132 is inserted into the inner surface of the packer 120 via the inner contact tube 139 and adhered to the inner contact tube 139 for heat source by hot air injected from the outside. The inner insertion pipe 132 of the packer 120 because it can be easily separated and stored from the packer 120 together with the inner insertion pipe 132 after the end of the pipeline repair work and delivered to the packer 120 through The storage and handling of the conduit device may be easier than the one provided integrally on the inner surface.

In addition, between the packer 120 and the inner insertion pipe 132 as shown in Figure 5a and 5b, the flow path of the hot air supplied through the hot air inlet 134a to the longitudinal direction of the packer 120 Accordingly, at least one spiral body 137 may be provided to extend in the spiral direction.

The spiral body 137 has an inner end integrally fixed to an outer surface of the inner insertion tube 132, and both left and right ends thereof may be selectively connected to or spaced from the left and right pair of sealing plates 134 and 135.

Accordingly, the hot air supplied through the hot air inlet 134a forms a spiral hot air flow along a helical passage formed by the spiral body 137 provided on the outer surface of the inner insertion pipe 132, and thus the packer. Heat-exchanged to heat the 120 is discharged to the outside through the hot air outlet 134a provided on the opposite side.

Here, the outer end of the spiral body 137 having an inner end integrally formed on the outer surface of the inner insertion tube is illustrated and described as being integrally connected to the inner surface of the packer 120, but is not limited thereto. The packer 120 may be separated from the inner surface of the packer 120.

In addition, the outer end of the spiral body 137 is integrally connected to contact the inner surface of the inner contact tube 139 or spaced apart from the inner surface of the inner contact tube 139 and the inner contact tube 139 and the inside It may be provided to form a spiral hot air flow between the insertion tube (132).

6A and 6B, the inner insertion pipe 132 is spaced apart from the sealing plate 134 in which the hot air inlet 134a is installed at a predetermined interval, and includes a plurality of rectifying holes 138a. By providing a rectifying plate 138 formed through the through the hot air inlet 134a through the plurality of rectifying the hot air first supplied to the rectifying space between the rectifying plate 138 and the sealing plate 134 After rectifying to have a constant flow rate it may be supplied to the space between the inner surface of the packer 120 and the outer surface of the inner insertion pipe 132.

Here, the rectifying plate 138 is illustrated and described as having an inner end integrally connected to the outer surface of the inner insertion tube 132, and an outer end integrally connected to the inner surface of the packer 120, but is limited thereto. The outer end may be integrally connected to the inner surface of the inner contact tube 139 which is inserted to contact the outer surface of the packer 120.

The inner insertion pipe 132 further includes a moving part 140 for facilitating entry of the inner pipe 132 into the conduit for maintenance work on the inner pipe 132, And a wheel support 144 which is assembled to the end of the fixing table 142 exposed to the outside of the inner insertion pipe 132 and has a traveling wheel 146 at both ends thereof, Respectively.

 Here, the wheel support 144 may be selectively assembled into any one of a plurality of controlled air passages formed through the fixing member 142.

The repair of damages such as cracks, scratches, grooves, etc. generated on the inner wall of the pipeline by using the non-excavated pipeline repair device having the above-described constitution will be performed by applying high pressure steam to the inner wall of the pipeline P to be repaired. Clean the inner wall of the pipe (P) to be repaired by spraying high pressure water.

Subsequently, as shown in FIG. 7A, the repair device of the present invention is damaged while the repair felt 101 in which the hardener is impregnated is wound on the outer surface of the expansion member 110 in a contracted state in which compressed air is not injected. The repair felt enters the pipeline P to correspond to each other.

In this state, if the expansion member 110 is expanded by forcibly injecting compressed air into the expansion member by using compressed air supply means such as an air compressor provided on the ground, as shown in FIG. As the expansion member expands, the repairing felt 101 is pressed by the expansion force of the expansion member 110 to be in close contact with the inner wall of the conduit P where the damage portion is generated.

At the same time, hot air having a temperature of 50 to 80 ° C. through the hot air inlet 134a is formed between the packer 120 and the internal insertion tube 132 or between the internal contact tube 139 and the internal insertion tube 132. When supplied to the high temperature atmosphere space formed in the, the hot air flow is extended by the flow path forming tube or the spiral body disposed in the high temperature atmosphere space to heat the packer until it is discharged to the outside through the hot air outlet.

In addition, the heat curing time of the repair felt impregnated with the hardener may be significantly lowered by heating the packer by the hot air and indirectly transferring the heat source of the hot air to the repair felt through an expansion member in contact with the hot air.

Subsequently, while maintaining the expanded state of the expansion member 110 for a predetermined time and maintaining the hot air supply through the hot air inlet, when the repair felt 101 is cured, air is discharged from the expansion member 110 to discharge the inner wall of the conduit. Shrink the expansion member so as to be spaced apart from the next, by moving the repair device of the present invention to the next repair work position along the pipeline (P) to perform the subsequent repair work as before or withdraw from the inside of the pipe to the outside repair work To exit.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

101: Repair felt
110: Expansion member
120: Packer
130:
132: Inner inserting tube
134,135: airtight plate
134a: hot air inlet
135a: hot air outlet
136: flow path forming tube
137: spiral
138: rectification plate
140:
142:
144: Wheel support
146: Driving wheel

Claims (7)

In the device for repairing the damaged part of the pipeline by in close contact with the repair felt impregnated with a curing agent on the inner surface of the pipeline,
An expansion member wound on the outer surface of the repair felt and connected to the compressed air supply means to expand the volume by air supplied from the outside;
A hollow park cylindrical packer disposed to be inserted into the expansion member so that the inner surface and the outer surface of the expansion member are interviewed;
Inserted into the inside of the packer to form a flow path for curing hot air flow in one direction, and has a hot air inlet connected to the hot air supply means to supply the hot air for curing, and discharges the curing hot air heat exchanged with the packer to the outside And a heating unit having an inner insertion pipe having a hot air discharge port to heat-cure the repair felt adhered to the inner surface of the conduit by a heat source of hardening hot air transmitted through the packer and the expansion member,
The inner insertion tube includes an inner contact tube inserted into the inner surface of the packer so that the outer surface is interviewed, the outer end is in contact with the inner surface of the left and right ends of the inner contact tube and the inner surface of the inner contact tube and the inner insertion tube Non-excavated pipeline repair apparatus, characterized in that it comprises a pair of left and right airtight plates to selectively install the hot air inlet and hot air outlet while sealing the high temperature atmosphere space forming a flow path in one direction between the outer surface of the pipe . In the device for repairing the damaged part of the pipeline by in close contact with the repair felt impregnated with a curing agent on the inner surface of the pipeline,
An expansion member wound on the outer surface of the repair felt and connected to the compressed air supply means to expand the volume by air supplied from the outside;
A hollow park cylindrical packer disposed to be inserted into the expansion member so that the inner surface and the outer surface of the expansion member are interviewed;
Inserted into the inside of the packer to form a flow path for curing hot air flow in one direction, and has a hot air inlet connected to the hot air supply means to supply the hot air for curing, and discharges the curing hot air heat exchanged with the packer to the outside And a heating unit having an inner insertion pipe having a hot air discharge port to heat-cure the repair felt adhered to the inner surface of the conduit by a heat source of hardening hot air transmitted through the packer and the expansion member,
The inner insertion pipe has a hot air inlet while sealing the high temperature atmosphere space in which the hot air flows in one direction between the inner surface of the packer and the outer end of the inner surface of the packer, the outer end being in contact with the inner surface of the packer. And a pair of left and right airtight plates in which hot air outlets are selectively installed,
And the inner insertion pipe includes at least one spiral body so as to extend a flow path of the hot air supplied through the hot air inlet in a spiral shape along the longitudinal direction of the packer. delete The method of claim 1,
The inner insertion pipe has at least one hollow-cylindrical flow path forming tube which is in contact with one of the left and right pair of sealing plates so as to extend a flow path of the hot air supplied through the hot air inlet in the longitudinal direction of the packer. Non-excavation pipeline repair device, characterized in that. The method of claim 1,
And the inner insertion pipe includes at least one spiral body so as to extend a flow path of the hot air supplied through the hot air inlet in a spiral shape along the longitudinal direction of the packer. The method according to claim 1 or 2,
The inner insertion pipe is a non-excavated pipeline repair apparatus, characterized in that it is provided with a rectifying plate spaced apart from the sealing plate is installed at the hot air inlet spaced at a predetermined interval, and formed through a plurality of rectifying holes. The method according to claim 1 or 2,
The inner insertion pipe further includes a moving part to facilitate entry into the pipeline for the pipeline repair work,
The moving part is provided with a fixed length of the fixed length mounted on the inner surface of the inner insertion tube, and the wheel support is assembled to the end of the fixing member exposed to the outside of the inner insertion tube and having a traveling wheel at both ends. Non-rigged pipeline repair equipment.

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