KR100352831B1 - An independent-type 3-chamber repairing apparatus of waterworks and sewer and method utilizing it - Google Patents

Abstract

The present invention relates to an integrated three-room independent inflatable repair device for non-excavated sewage pipe lining construction and a lining method using the same, in an inflatable repair device for lining damaged parts of a sewage pipe by using a non-excavation method using a repair material: A long solid hollow frame having a pair of protrusions formed at both ends and a central portion formed therebetween; An actuator installed inside the frame; A photographing member installed at one end of the frame to reciprocate and rotate by an actuator to photograph a damaged part; And a pair of sub-expansion portions that form a hermetically sealed space that is primarily expandable by air supplied from the outside at a position corresponding to the protrusion, and a secondly expandable space by air at a position corresponding to the central portion. It is provided with a main inflating portion to be expanded independently of the sub-expansion, and is installed in the frame to surround the outer peripheral surface of the frame and the expansion member that can be in close contact with the inner peripheral surface of the sewer pipe by expansion.

Description

An independent-type 3-chamber repairing apparatus of waterworks and sewer and method utilizing it}

The present invention relates to an integrated three-room independent inflatable repair device for a non-excavable sewer pipe lining construction and a non-excavable sewer pipe lining method using the same. Specifically, a rubber expansion member is used as a pair of sub-expanded parts and a main expansion part. The present invention relates to an integrated three-room independent inflatable repair device for a non-excavated sewer pipe lining with a partitioned structure and a non-excavated sewer line lining method using the same.

In general, underground sewage pipes, such as concrete chest pipes, polyvinyl chloride pipes, and conduits, have defects such as cracks, breaks, or separation of connections due to ageing of the pipes themselves, subsidence of the subsurface, or variations in earth pressure from the ground. This will occur. Therefore, the wastewater inside the sewage pipe is leaked to the outside through such defects, thereby polluting the soil.

The method for repairing a faulty sewer pipe is appropriately selected depending on the nature of the damaged area and the surrounding conditions. In the case of relatively small sewer pipes with a diameter of 200-600 mm, appropriate repairs and methods are adopted because workers cannot enter them. In particular, when a grouting operation is impossible because the damaged parts of the sewage pipe are widely distributed, a lining method of applying a separate repair material to the sewage pipe is used.

By the way, the conventional repair pack (packer) employed in the lining method is difficult due to its structural limitations. That is, as shown in FIG. 1, the conventional lining repair device 10 covers the rubber cover 14 using air supplied from the outside by covering the hollow frame 12 with an integral cylindrical rubber cover 14. It expands and has the structure which adheres the water holding material 16 to the inner peripheral surface of the sewer pipe 18. As shown in FIG.

Therefore, according to the conventional repair device 10, since the pressure applied to the sewer pipe 18 by the central portion 10a and the both ends 10b of the repair device 10 is different from each other, both ends 10b of the repair device 10 and The drug (topic + hardener) applied to the water-retaining material 16 leaks through the gap between the sewage pipes 18, and the drug is wrapped in the bottom surface of the sewage pipe 18 and has a problem of being fixed. In addition, there is a problem in that the adhesiveness of both end surfaces of the water retaining material 16 after the lining operation is poor due to the nonuniformity of the pressure between the central portion 10a and the both ends 10b as described above.

The present invention was conceived in view of the above-mentioned problems, and the expansion member of the repair device made of rubber is formed in a high solid shape, and the expansion chambers at both sides and the expansion chamber at the center are respectively formed so that both ends of the repair device are first bonded to the sewer pipe. The purpose of the present invention is to provide an integrated three-room independent inflatable repair device for non-excavation sewage pipe lining construction having improved structure so that it is easy to deal with chemical leakage and end surface treatment of the repair material.

1 is a cross-sectional view schematically showing an example of performing the lining work using the repair apparatus for lining according to the prior art.

Figure 2 is a cross-sectional view schematically showing an integrated three-room independent inflatable repair device for non-drilling sewer line lining construction according to a preferred embodiment of the present invention.

3 is a perspective view of the repair device shown in FIG.

Figures 4a to 4e is a view for explaining a lining method using an integrated three-room independent inflatable repair device for non-drilling sewer pipe lining construction according to a preferred embodiment of the present invention.

Figure 5 is a flow chart illustrating a process of the lining method using an integrated three-room independent inflatable repair device for non-excavated sewer pipe lining construction according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawing

100 Repair device 102 Repair material 104 Sewage pipe

106 Damaged 110 Frame 112 Center

114 Projection 120 Actuator 122 Rod

130 Shooting member 140 Expanding member 142 Main expansion part

144 ... sub expansion 146 ... wrinkle 152 ...

154 Steering wheel 156 Hydraulic motor 158 Reducer

In order to achieve the above object, the present invention provides an inflatable repair apparatus for lining damaged parts of sewage pipes by a non-excavation method using a repair material: a pair of protrusions formed at both ends and a central portion formed therebetween. Django's hollow frame; An actuator installed inside the frame; A photographing member installed at one side end of the frame to enable reciprocating and rotational motion by the actuator to photograph the damaged part; And a pair of sub-expansion portions that form a hermetically sealed space that is primarily expandable by air supplied from the outside at a position corresponding to the protrusion, and secondly by the air at a position corresponding to the central portion. An expansion member that forms an inflatable space and has a main expansion portion that is expanded independently of the sub-expansion portion, and is installed on the frame to surround the outer circumferential surface of the frame, and is capable of being in close contact with the inner circumferential surface of the sewer pipe by expansion. It includes;

The expansion member, 'V' shaped groove is formed at the end, and protrudes on the outer circumferential surface of the main expansion portion, spaced apart from each other by a predetermined interval, and has a plurality of wrinkles formed wrinkles.

The maintenance device includes at least two self-propelled wheels installed at one end of the frame to be rotatable by a drive source installed in the frame; And steering wheels installed on the rotating member rotatably installed on the frame such that four rollers form one set so as to easily pass through the inner circumferential surface of the stepped sewage pipe.

The present invention for achieving the above object is a lining method for repairing the damaged portion of the sewer pipe by using a non-excavation method using a repair material: (a) a predetermined repair material in a state in which the peeling vinyl is wound on the outer peripheral surface of the repair device; Winding the vinyl for peeling; (b) injecting the repair device having the photographing member into the sewer pipe to position the repair device at the damaged part; (c) supplying air generated from an air compressor to a pair of sub-expansion portions formed at both ends of the repair device, and contacting the sub-expansion portion to the inner circumferential surface of the sewer pipe; (d) supplying air generated from the air compressor to a main expansion part formed at the center of the repair device to expand the main expansion part to attach the repair material to the inner circumferential surface of the sewer pipe around the damaged part; And (e) bleeding the air inside the maintenance device and checking the maintenance state as the photographing member.

The repairing material includes carbon fibers and nonwoven fabrics of a predetermined thickness, which are adhered by an index agent consisting of a main material, a curing agent, and an accelerator.

Hereinafter, an integrated three-room independent inflatable repair device for a non-excavable sewer pipe lining construction and a non-excavable sewer pipe lining method using the same will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic cross-sectional view of an integrated three-room independent inflatable repair apparatus for a non-excavated sewer pipe lining construction according to a preferred embodiment of the present invention, and FIG. 3 is a perspective view of the repair apparatus illustrated in FIG. 2.

2 and 3, the repair device 100 according to the present embodiment is an inflatable repair device 100 for lining damaged parts of sewage pipes by a non-excavation method. ) Is commonly referred to as a packer, and peripheral equipment such as an air compressor, a hydraulic pump, a generator, a controller, a monitor, and an input / output device is connected to a work vehicle installed inside a container.

The maintenance device 100 includes a django frame 110 having a central portion 112 and a pair of protrusions 114, an actuator 120 installed inside the frame 110, and a rod of the actuator 120 ( 122 has a photographing member 130, a main inflation portion 142 and a pair of sub inflation portions 144, which can be in close contact with the inner circumferential surface of the sewer pipe 102 (FIG. 4A). An expansion member 140 is provided.

The frame 110 is a hollow pipe-shaped member, and a pair of protrusions 114 are formed at both ends, and the central portion 112 is formed between the protrusions 114. Wheels are installed at both ends of the frame 110. One end of the frame 110 is provided with a self-driving self-propelled wheel 152, the other end is provided with a steering wheel 154. The self-propelled wheel 152 is preferably driven by a hydraulic motor 156 operated by a hydraulic pump installed in a container. Between the hydraulic motor 156 and the self-propelled wheel 152, it is preferable that a speed reducer 158 consisting of a worm and a worm gear is installed. In addition, the self-propelled wheel 152 may be configured to be self-driving by a separate device that is not hydraulic. In addition, the hydraulic motor 156 is preferably installed on each of the wheels 152 to provide independent driving force to each of the wheels 152.

The steering wheel 154 is composed of a set of four rollers 155. The roller 155 is supported at a predetermined height with respect to the bottom surface of the sewer pipe 104 by a support 157 which is rotatable at an angle. The roller 155 connected to the end of the support 157 by a pin can be freely rotated so that the roller 155 can rotate and rotate about the pin. Therefore, even if there is a step or obstacle at the bottom of the sewer pipe 104, the repair device 100 can be easily advanced. The wheels 152 and 154 allow the repair device 100 to move freely with respect to the bottom surface of the sewer pipe 104 by being spaced apart from the bottom surface of the sewer pipe 104 by a predetermined distance. Of course, the repair device 100 may be moved between the manhole and the manhole using a guide roller, a wire, and a winch not shown.

The actuator 120 is for reciprocating and rotating the photographing member 130, a conventional actuator that moves by a piston method is used.

The photographing member 130 is for photographing a damaged part of the sewer pipe 104 and transmitting the information to the controller. The photographing member 130 may be configured to reciprocate and rotate about the frame 110 by the actuator 120. It is installed at one side end. Preferably, the photographing member 130 uses a CCTV camera. The photographing member 130 is connected to the controller by a control cable. The photographing member 130 is capable of adjusting its position by the operation of the actuator 120 according to the standard of the sewer pipe (104).

The expansion member 140 is installed on the frame 110 to surround the outer circumferential surface of the frame 110, is made of a stretchable rubber, the overall shape is a high-density. The sub inflates 144 are formed at positions corresponding to the protrusions 114 of the frame 110, respectively, and the main inflates 142 are formed at positions corresponding to the central portion 112 of the frame 110. . It is preferable that the main expansion part 142 and the sub expansion part 144 are integrally molded.

The sub-expansion unit 144 has a space enclosed to be primarily expandable by the air supplied from the air compressor. The main expansion part 142 has an expansion space that is independent of the sub-expansion part 144 to be secondly expandable by air. As described above, the water holding material 102 is located on the outer circumferential surface of the main inflation portion 142.

The reason why the structure of the expansion member 140 is divided into the main expansion part 142 and the sub-expansion part 144 is that the sub-expansion part 144 is primarily expanded than the main expansion part 142 so that the repair device ( By contacting both ends of the first 100 to the sewer pipe 104 first to prevent the drug applied to the repair material 102 to leak to the bottom surface of the sewer pipe 104, and to reinforce the adhesiveness of the end surface of the repair material 102. .

On the outer circumferential surface of the main inflation portion 142 of the expansion member 140, a plurality of wrinkles 146 are formed spaced apart from each other at predetermined intervals and formed with wrinkles. An end portion of the wrinkle part 146 is formed with a 'V'-shaped groove 148. The wrinkle portion 146 is to increase the shear strength and adhesion in the process of adhering the repair material 102 to the inner peripheral surface of the sewer pipe (104).

The water retaining material 102 is preferably applied to the outer peripheral surface of the carbon fiber of a predetermined thickness and covered with a non-woven fabric after applying the index agent mixed evenly mixed with the main agent, the curing agent and the accelerator. Here, the main ingredient is a resin which functions as an adhesive, and a curing agent and an accelerator facilitate the curing of the main material. Since the subject is a natural substance, it is harmless in contact with water, so there is no fear of water pollution. On the other hand, the main body, the accelerator and the curing agent may be previously applied to the nonwoven fabric and carbon fiber cut to the appropriate size to cover the outer peripheral surface of the non-woven fabric and carbon fiber at one time.

4A to 4E are views for explaining a lining method using an integrated three-room independent inflatable repair device for non-excavated sewer pipe lining construction according to a preferred embodiment of the present invention, and FIG. 5 is a flowchart illustrating the method. .

A method of lining the damaged portion 106 of the sewage pipe 104 by the non-excavation method will be described with reference to FIGS. 4A to 5 as follows.

First, the peeling vinyl (not shown) is wound on the outer circumferential surface of the repair apparatus 100 (step S11). Subsequently, a grease-like cream (oil) is applied onto the vinyl, and then the water retaining material 102 is wound on the peeling vinyl (step S12).

Next, as shown in Figure 4a, the repair device 100, such as CCTV, the shooting member 130 is installed in the interior of the sewer pipe 104 through a manhole (not shown) damage the repair device 100 It is located exactly in the site 106 (step S13). In this process, the controller is operated to identify and control the exact position of the damaged portion 106 on the external monitor by the photographing member 130.

Subsequently, as shown in FIG. 4B, air generated from the air compressor is supplied to a pair of sub-expansion units 144 formed at both ends of the repair device 100 to supply the sub-expansion unit 144 to the sewer pipe 104. In close contact with the inner circumferential surface thereof (step S14). Then, the sub-expansion unit 144 is inflated so that both ends of the repair device 100 is in close contact with the inner peripheral surface of the sewage pipe (104).

Next, as shown in FIG. 4C, the air generated from the air compressor is supplied to the main expansion part 142 formed in the central portion 112 of the repair device 100 to expand the main expansion part 142. Then, the repair material 102 seals the periphery of the damaged part 106 while penetrating into the gap of the damaged part 106 of the sewer pipe 104 (step S15). That is, since the mixture of the main material, the hardening agent, and the accelerator is applied to the outer surface of the repair material 102, the repair material 102 is in close contact with the inner circumferential surface of the sewer pipe 104 by the adhesive force of the main material and at the gap of the damaged part 106. Are glued. At this time, it is preferable to set in advance the repair device 100 to pressurize the repair material 102 at a predetermined pressure for a predetermined time corresponding to the thickness of the repair material 102 and the application amount of the mixture including the subject matter by operating the controller. Do.

Subsequently, as shown in FIG. 4D, the air inside the repair apparatus 100 is drawn out to check the repair state using the photographing member 130 (steps S16 and S17). On the other hand, after the sufficient pressure process through the controller and the photographing member 130, the main and the curing agent to check whether the non-woven fabric and the carbon fiber sufficiently to repair the damaged portion 106 of the sewer pipe (104). When air is drawn out from the repair device 100, the repair device 100 is easily separated from the repair material 102 by the peeling vinyl. After checking that the repair state is good through the photographing member 130, and when the air draining device 100 is taken out to the outside, as shown in FIG. 4E, the repair material 102 of the sewer pipe 104 is removed. The damaged portion 106 is completely blocked.

The integrated three-room independent inflatable repair device for non-excavation sewer pipe lining construction and the lining method using the same according to the present invention configured as described above have the following effects.

First, since the structure of the repair device takes the form of an integrated three-room chamber, leakage of chemicals is caused by firstly contacting both sides of the repair device with the inner circumferential surface of the sewer pipe and secondly expanding the center of the repair device to bond the repair material. This disappears. Therefore, it is possible to save the drug, it is not necessary to go through the treatment of the drug residue stuck around the sewage pipe.

Second, the lining end surface is reinforced by the three-chamber structure of the repair device as described above, it is possible to clean lining treatment.

Third, by forming a plurality of corrugations formed with a predetermined V-shaped groove in the center of the expansion member, it is possible to increase the compression and shear strength of the water-retaining material bonded to the inner circumferential surface of the sewer pipe, and consequently increase the adhesive strength.

Fourth, by positioning the photographing member such as CCTV on the side of the repair device, it is possible to perform the work of finding the damaged part and determining the repair position by one operation, and the inspection work at the same time.

Fifth, by dividing the structure of the wheels of the repair device into frequent wheels and driving wheels, there is no need to mobilize a separate device for driving the repair device increases workability.

Claims (5)

In an inflatable repair device for lining damaged parts of sewage pipes with non-excavation, using repair materials: A long solid hollow frame having a pair of protrusions formed at both ends and a central portion formed therebetween; An actuator installed inside the frame; A photographing member installed at one side end of the frame to enable reciprocating and rotational motion by the actuator to photograph the damaged part; And A pair of sub-expansion portions that form a hermetically expandable enclosed space by means of air supplied from the outside at a position corresponding to the protruding portion, and a second expansion by the air at a position corresponding to the central portion; An expansion member that forms a space and has a main expansion portion that is expanded independently of the sub-expansion portion, and is installed on the frame to surround the outer circumferential surface of the frame, and the expansion member can adhere to the inner circumferential surface of the sewer pipe by expansion; An integrated three-room independent inflatable repair device for non-excavated sewer pipe lining construction comprising a. The method of claim 1, The expansion member, the 'V' shaped groove is formed at the end, protrudes on the outer circumferential surface of the main expansion portion, spaced apart from each other by a predetermined interval, non-excavable sewer pipe lining construction, characterized in that it comprises a plurality of wrinkles Integral 3-room independent inflatable repair device. The method of claim 1, At least two self-propelled wheels installed at one end of the frame to be rotatable by a drive source provided inside the frame; And Integral type 3 for non-excavation sewage pipe lining construction comprising a; steering wheel installed on the rotating member rotatably installed on the frame so that the four rollers to form a set to easily pass through the inner circumferential surface of the stepped sewage pipe Seal independent inflatable repair device. In the lining method of repairing damaged parts of sewage pipes using a non-excavation method using a repair material: (a) winding a predetermined repairing material on the peeling vinyl while the peeling vinyl is wound around the outer circumferential surface of the repairing device; (b) injecting the repair device having the photographing member into the sewer pipe to position the repair device at the damaged part; (c) supplying air generated from an air compressor to a pair of sub-expansion portions formed at both ends of the repair device, and contacting the sub-expansion portion to the inner circumferential surface of the sewer pipe; (d) supplying air generated from the air compressor to a main expansion part formed at the center of the repair device to expand the main expansion part to attach the repair material to the inner circumferential surface of the sewer pipe around the damaged part; And (e) extracting the air inside the repair device and checking the repair status as the photographing member; a non-excavated sewage pipe lining method using an integrated three-room independent inflatable repair device. The method of claim 4, wherein The repair material is: A non-extruded sewer pipe lining method using an integrated three-room independent inflatable repair device comprising a carbon fiber and a nonwoven fabric of a predetermined thickness in close contact with an index agent consisting of a main body, a curing agent, and an accelerator.