KR101026755B1 - Device for repairing and reinforcing pipe without digging using redispersible polymer - Google Patents

Abstract

PURPOSE: A non-excavation type pipe repair and reinforcement apparatus using redispersible polymer is provided to carry a lining pad in spite of the flow of water and firmly fix the lining pad to the target position. CONSTITUTION: A non-excavation type pipe repair and reinforcement apparatus using redispersible polymer comprises a body(110), a sliding pipe(120), a cylinder, a protective cover(140), and a lining pad(150). The body has a center hole(111) and a compression tube(114) which presses the interior surface of a pipe. The sliding pipe is inserted into the center hole of the body and carried back and forth. The cylinder is connected to the sliding pipe and controls the movement of the sliding pipe. The protective cover is arranged to cover the entire exterior surface of the body and fixed by banding the front and rear sides. The lining pad is restrained on the exterior surface of the body to be pressed and attached to the interior surface of the pipe.

Description

Device for repairing and reinforcing pipe without digging using redispersible polymer}

The present invention relates to a non-excavated pipeline repair reinforcement apparatus using a redispersible polymer, and more particularly, to a redispersible polymer which can quickly and completely repair and repair various damage sites such as cracks, partial breakages and joints of a pipeline. It relates to a non-excavated pipeline repair reinforcement device used.

In general, non-excavation repair method refers to a method for repairing abnormal parts in case of various problems that may cause leaks such as partially ruptured pipelines, open joints, or stepped gaps.

In this repair method, the overall repair method is to repair by inserting the synthetic resin pipe into the abnormal part section as a whole, using the adhesive resin solution and the glass fiber to apply the adhesive resin solution to the glass fiber only to impregnate the impregnation and then harden it. There is a lining method for partially repairing, a reinforcing ring method for tightly installing a non-excavation repair member of stainless steel configured to be wound in a cylindrical shape, and the like.

Among the above methods, the lining method can be used to fill the damaged and cracked parts of the pipe that caused leakage compared to other methods relatively cleanly, and since the inside of the pipe is smooth after construction, it has the advantage of minimizing the disturbance of the sewage flow. Has been.

However, in such a lining method, because the lining material coated on the inner wall of the pipeline is liquid or soft and must be secured so as not to fall off until it is cured, it is structurally very weak, causing various problems.

First, the process of coating lining material on the inner wall of the pipeline was quite difficult and complicated, which required expensive equipment and required a lot of construction time.

Second, since the lining material has to be thickly coated to secure the coating strength, the amount of lining material used is large, increasing the construction cost and reducing the diameter. In addition, the curing time of the lining material was considerably taken.

Third, even when the lining material is thickly coated, the structural rigidity is still weak and cracks are generated during the curing of the coated lining material.

Fourth, even after the lining material was cured, the coated lining material was always exposed to the risk of easily falling off the inner wall of the pipeline.

Therefore, in order to solve the problems caused by the lining method, in recent years, an improved lining that hardens and repairs abnormal areas by using a stainless steel sheet configured to be wound in a cylindrical shape inside the repair material in addition to the adhesive resin solution and glass fiber. Partial repair method is used.

Improved lining partial repair method has the advantages of being able to cover the lining material thinner compared to the existing lining method, work process is relatively simple, secure structural rigidity, etc. I was able to solve a large part.

However, the stainless steel sheet used in the improved lining partial repair method had to be provided with a high strength because it had to support all loads by itself without any help from the lining material without self-supporting force.

Moreover, this conventional pipeline repair method is not only complete repair of the damaged part is possible because the walking lining material is peeled off or partially removed by running water or other obstacles in the process of movement, but also the coated lining material coated on the inner circumference of the pipeline There was a problem of easily falling off the inner wall.

The main object of the present invention is to redispersible polymers that can completely and quickly repair damaged parts such as cracks, partial breakages, joints and joints of a pipeline, as well as prevent the coating material from being peeled off or removed due to movement in the pipeline. To provide a non-drilling pipeline repair reinforcement using the.

Another object of the present invention is to provide a non-excavated pipeline repair reinforcement apparatus using a redispersible polymer that allows the coating material to move while maintaining a bending state irrespective of flow in the running water.

In order to achieve the above object, the non-excavated pipeline repair reinforcement apparatus using the redispersible polymer of the present invention forms a center hole penetrating back and forth and forms a pressure tube on the outer circumference to pressurize the inner circumference of the pipeline. A slide tube inserted into the center hole of the body to move back and forth, a cylinder installed in the longitudinal direction inside the body and connected to the slide tube to control the movement of the slide tube, and completely on the outer periphery of the body; Covering and protecting the front and back by bending the front and back, and the lining pad to restrain the outer periphery of the body to press and attach to the inner periphery of the conduit characterized by the basic features of the technical configuration.

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The non-excavated pipeline repair reinforcement apparatus using the redispersible polymer of the present invention fits the entire lining pad restrained in the pressure tube of the body as a protective cover and then bands both sides of the protective cover to completely protect and support the lining pad. The cylinder is operated at the damaged position to smoothly remove the protective cover and pressurize air into the pressurized tube to press the hardened lining pad against the damaged inner circumference of the pipeline, thereby hardening the product. The effect is to greatly improve.

In addition, since the lining pad is filled with the redispersible polymer and the wire mesh in the nonwoven fabric, it is possible to obtain excellent adhesive strength due to high tensile strength and adhesive force, and to thereby make excellent repair and reinforcement of the damaged portion of the pipe.

1 is a perspective view for explaining a non-drilling pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 2 is a perspective view showing a protective cover removed for explaining the non-excavated pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 3 is a perspective view showing an exploded state for explaining a non-drilling pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 4 is a cross-sectional view showing an installation state for explaining a non-drilling pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 5 is a cross-sectional view showing a protective cover removed for explaining the non-excavated pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 6 is a cross-sectional view showing a pressurized state for explaining a non-drilling pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.
Figure 7 is a perspective view showing a reinforcement repair sheet for explaining a non-excavated pipeline repair reinforcement apparatus using a redispersible polymer according to the present invention.

As shown in Figures 1 to 7, the non-excavated pipeline repair reinforcement apparatus using the redispersible polymer of the present invention forms a center hole 111 penetrates back and forth and the pressure tube 114 is formed on the outer periphery of the pipeline 10 Body 110 to pressurize the inner circumference of the), the slide tube 120 is inserted into the center hole 111 of the body 110 to move back and forth, and the length in the body 110 Cylinder 130 for controlling the movement of the slide tube 120 by connecting to the slide tube 120 and completely cover the outer periphery of the body 110 and the protective cover for fixing by bending the front and rear 140 ), And a lining pad 150 that restrains the outer circumference of the body 110 to attach to the inner circumference of the conduit 10.

The body 110 is preferably formed with a guide long groove 112 in the longitudinal direction on the inner circumference of the center hole 111, the edge portion of the front and rear end to form an inclined surface 113.

Here, the projecting pin 115 protrudes forward at a predetermined front surface of the body 110, and the roller 116 is coupled downward to the front end to facilitate movement in the conduit 10.

The slide tube 120 protrudes the key 121 on the outer circumference and is inserted into the guide long groove 112, and the roller 122 is coupled downward to the rear end to facilitate movement in the conduit 10.

Here, the slide tube 120 is formed so as to maintain a state slightly projected to the rear after fully inserted into the center hole 111 of the body (110).

The cylinder 130 forms a pair of fixed pulleys 134 and a pair of movable pulleys 135 in the front and the movable pulley 135 is coupled to the front end of the rod 131 to be interlocked and fixed pulleys 134 ) And the movable pulley 135 is formed by winding the wire rope 136 sequentially, one end of the wire rope 136 is coupled to the fixing pulley 134 of one side and the other end of the wire rope 136 guide groove ( It is coupled to the key 121 of the slide tube 120 through 112 to allow the slide tube 120 to move linearly by the operation of the cylinder 130.

Here, the bottom of the bottom dead center of the cylinder 130 communicates with the air supply line 132, and immediately before the top dead center, a discharge passage 133 is formed to communicate with the pressure tube 114 of the body 130 to advance the rod 131. After passing through a predetermined position it is desirable to be able to inject air to the pressure tube 112 side automatically.

The protective cover 140 is provided with a rubber band 141 at the front end and a fixing band 142 for coupling at the rear end thereof, and the rubber band 141 is a protruding pin protruding from the inclined surface 113 of the body 110. It is preferable to allow the rear side of the protective cover 140 to be joined to the fixed band 142 on the exposed rear outer periphery of the slide tube 120 after the 115 is positioned at the past position.

The lining pad 150 is formed by filling the redispersible polymer 153 in a plurality of layers of nonwoven fabric 152 but inserting a wire mesh 151 in a central portion thereof.

Wherein the redispersible polymer 153 comprises calcium aluminate, silica sand, calcium carbonate, re-emulsified powdered resin, glidant and thickener; Thickeners include methyl cellulose thickeners, starch thickeners, PEO and ash.

1/10 of water is added to the compound of the redispersible polymer 153, and the sheet is wound around the outer periphery of the pressure tube 114 of the body 110 in a state where it is evenly infiltrated. To reinforce the repair of the pipe (10).

Here, it is preferable to mix the pulp or the like with the compound of the redispersible polymer 153 filled in the lining pad 150 to improve the water absorption rate and to smoothly induce the reaction with water.

The non-excavated pipeline repair reinforcement apparatus using the redispersible polymer of the present invention is made of a lining pad 150 filling the redispersible polymer between the plurality of layers of nonwoven fabric 152 and inserting the wire mesh 151 in the center thereof. By adding an appropriate amount of water to the produced lining pad 150, the lining pad 150 in a state in which water is evenly infiltrated is wound around the outer periphery of the pressure tube 114 of the body 110.
In addition, the entirety of the lining pad 150 restrained by the pressure tube 114 is inserted into the protective cover 140 to bend both sides of the protective cover 140 to support the lining pad 150, and in this state, the pipeline ( Move to the maintenance position of 10) to accurately set the body 110.
Here, when the cylinder 130 is driven, the slide tube 120 exits the center hole 111 of the body 110 and moves to the rear side, whereby the protective cover 140 also moves rearward, thereby leaving the lining pad 150. Removed.
In such a state, when the air is injected into the pressure tube 114 by expansion, the lining pad 150 is pressed against the damaged inner circumference of the conduit 10 to be in close contact with each other.

Particularly, since the redispersible polymer 153 and the wire mesh 151 are filled in the nonwoven fabric 152, not only excellent adhesive strength due to high tensile strength and adhesive force can be obtained, but also excellent repair and reinforcement of the damaged part of the conduit 10. Do it.

In addition, it is advantageous to maintain the correct ratio by holding the appropriate amount of water in the container and press the lining pad 150 thereon to evenly absorb the water.

Furthermore, the lining pad 150 is securely supported by covering the entirety of the lining pad 150 made by the pressure tube 114 with the protective cover 140.

At this time, the rubber band 141 coupled to the front end of the protective cover 140 contracts the protruding pins 115 of the inclined surface 113 of the body 110 at a position past, so that the rubber band 141 is in close contact with the inclined surface 113 and the cover is properly pulled. The rear side of the 140 is fixed to the rear outer periphery of the slide tube 120 by a fixing band 142 to be interlocked with the slide tube 120.

Therefore, the lining pad 150 made of the pressure tube 114 of the body 110 is completely supported while being supported.

Here, the body 110 is moved to monitor the position and the position of the body 110 is set in a conventional manner, and then the cylinder 130 is driven to slide the tube 120 to the center hole 111 of the body 110. Exit and move back.

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That is, when the loader 131 of the cylinder 130 is advanced, the movable pulley 135 coupled to the rod 131 is also advanced, and thus, the wire rope 136 wound on the movable pulley 135 is pulled, thereby causing the wire rope. Power is transmitted to the key 121 of the slide tube 120 coupled to 136.

Therefore, the key 121 is moved while sliding along the guide guide groove 112 formed in the center hole 111 of the body 110, thereby moving the slide tube 120 to the rear.

Further, the fixed pulley 134 and the movable pulley 135 are formed in pairs, respectively, to form a wire rope 136 by winding, and coupling one end of the wire rope 136 to any one of the fixed pulleys 135 to fix it. Then, the other end of the wire rope 136 may be coupled to the key 121 of the slide tube 120 to increase the desired distance more than the linear distance of the rod 131.

Therefore, the slide tube 120 of the present invention is also enough to slide to the rear to move as desired.

Particularly, the rear end of the slide tube 120 is pulled to the rear side by interlocking the protective cover 140 which is bent by the fixing band 142 on the slide tube 120, and coupled to the front end of the protective cover 140. The rubber band 141 is caught by the protruding pins 115 and moved to the rear, thereby leaving the outer periphery of the body 110.

Therefore, the cutting of the high band 141 prevents the polymer of the lining pad 150 restrained from the body 110 from being peeled off.

Furthermore, the lower end of the cylinder 130 communicates with the air supply line 132 and immediately before the top dead center forms a discharge passage 133 which communicates with the pressurizing tube 114 of the body 130. When the protective cover 140 is removed in advance, the air is continuously guided to the pressure tube 112 continuously.

When the protective cover 140 is removed as described above, the pressurized tube 114 is pressurized with air to expand and thereby the lining pad 150 restrained on the outer circumference is pressed against the damaged inner circumference of the conduit 10 so as to be hardened. As a result, the redispersible polymer 153 and the wire mesh 151 are excellent repair and reinforcement of the damaged portion of the conduit 10 with excellent adhesive strength due to high tensile strength and adhesion.

10: pipeline 100: maintenance reinforcement device
110: body 111: center ball
112: guide groove 113: slope
114: pressure tube 115: protruding pin
116: roller 120: slide tube
121: key 122: roller
130: cylinder 131: rod
132: supply line 133: discharge passage
134: fixed pulley 135: movable pulley
136: wire rope 140: protective cover
141: rubber band 142: fixed band
150: lining pad 151: wire mesh
152 nonwoven fabric 153 polymer

Claims (11)

A body 110 for forming a center hole 111 penetrating back and forth and forming a pressure tube 114 on the outer circumference to press the inner circumference of the pipe line 10;
A slide tube 120 inserted into the center hole 111 of the body 110 to move back and forth;
A cylinder 130 installed in the longitudinal direction inside the body 110 and connected to the slide tube 120 to control the movement of the slide tube 120;
A protective cover 140 which completely covers the entire outer circumference of the body 110 and fixes the band by bending back and forth; and
Non-excavation pipeline repair reinforcement using a redispersible polymer, characterized in that consisting of a lining pad 150 to restrain the outer periphery of the body 110 to press and attach to the inner periphery of the conduit (10).
The method of claim 1,
The body 110 forms a guide long groove 112 in the longitudinal direction at the inner circumference of the center hole 111, and forms the edge portion of the front and rear edges as the inclined surface 113, the protruding pin 115 on the inclined surface 113 Protruding forward, but the non-excavated pipeline repair reinforcement device using a redispersible polymer, characterized in that configured to combine the roller 116 downward to the front end.
The method of claim 1,
The slide tube 120 protrudes the key 121 on the outer circumference and inserts the key 121 into the guide-long groove 112 and couples the roller 122 downward to the rear end thereof, and the center hole of the body 110 ( 111. The non-excavation pipe repair and reinforcement device using redispersible polymer, characterized in that configured to maintain the state protruded to the rear in the inserted state.
The method of claim 1,
The cylinder 130 forms a pair of fixed pulleys 134 and a pair of movable pulleys 135 in the front and the movable pulley 135 is coupled to the front end of the rod 131 to be interlocked and fixed pulleys 134 ) And the movable pulley 135 are formed by winding the wire rope 136 in sequence, and one end of the wire rope 136 is coupled to the fixed pulley 134 on one side, and the other end of the wire rope 136 is guide-guide groove. The non-excavation pipe repair reinforcement using the redispersible polymer, characterized in that the slide pipe 120 is linearly moved back and forth by the operation of the cylinder 130 by coupling to the key 121 of the slide tube 120 through 112. Device.
The method according to claim 1 or 4
The ash powder is characterized in that the lower end dead center of the cylinder 130 is in communication with the air supply line 132 and immediately before the top dead center formed by forming a discharge passage 133 in communication with the pressure tube 114 of the body 130 Non-excavated pipeline repair reinforcement device using acidic polymer.
The method of claim 1
The protective cover 140 is a non-excavated pipe repair reinforcement device using a redispersible polymer, characterized in that the rubber band 141 is built in the front end and the fixing band 142 for coupling at the rear end.
The method of claim 1,
The lining pad 150 is filled with the redispersible polymer 153 in a plurality of layers of nonwoven fabric 152, but the wire mesh 151 is inserted into the center portion, characterized in that the non-excavated pipeline repair using a redispersible polymer Reinforcement device. delete delete delete delete

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