KR101083115B1 - A repairing method for used fresh and waste water not cutting pipe line with thermosetting resin immersion tube using flexible feeder union itself turn inside out insertion device - Google Patents

Abstract

PURPOSE: A method for regenerating and repairing a large-diameter and water and sewage pipe without cutting by the self-inversion and insertion of a tube impregnated with thermosetting resin liquid using an integral flexible feeder is provided to easily insert a tube into a pipe. CONSTITUTION: A method for regenerating and repairing a large-diameter and water and sewage pipe without cutting by the self-inversion and insertion of a tube impregnated with thermosetting resin liquid using an integral flexible feeder is as follows. A flexible feeder(2) is inserted into the end of a tube(1) and is integrated with the tube through sewing and high-frequency fusion. A compressed air hose and a steam hose are connected to a compressed air and steam injecting nipple(7) of the flexible tube. Compressed air is injected into the flexible feeder, the flexible feeder is inflated in a cylindrical shape, and a tube connection part(5) is inflated. The tube is inserted into a pipe. The tube is thermally cured by the injection of steam. The end of the cured tube is cut and is aligned.

Description

(A repairing method for used fresh and waste water not cutting pipe line with thermosetting resin immersion tube using flexible feeder union by self-reversal insertion of thermosetting resin liquid impregnation tube using an integrated flexible feeder. itself turn inside out insertion device}

The present invention is a tube impregnated with a thermosetting resin liquid (hereinafter referred to as a 'tube') in a PE film coated non-woven reinforcement tube (hereinafter referred to as a "tube") using a manhole without cutting the old buried large diameter water and sewage pipe line (hereinafter referred to as "resin liquid impregnation tube") When the tube is hardened and repaired by reversing the inside of the old pipe, the resin solution impregnated tube is integrated with the flexible feeder to enter the manhole of the large diameter water and sewage pipe, and the resin solution is impregnated using the air pressure of the compressor inside the pipeline. Insert the tube inverted, blow the steam inside the inverted tube, and heat the inverted tube. After cutting the end of the cured tube, the first construction hardening lining is performed, and the second construction is the tube lining in the same manner as described above. Construction of large-diameter water and sewage pipes that continuously form non-corrosive linings inside the pipeline without cutting the pipeline. The invention relates to a method for repairing rehabilitation.

Background Art The present invention relates to a small-diameter pipe of a water supply pipe having a nominal diameter of 300 to 1200 mm, which is a small-diameter pipe of a water supply pipe when rehabilitating and repairing an old water and sewage pipe by a conventional technique. In this case, the manhole is used to rehabilitate the sewer line between the manhole and the manhole. In the process of rehabilitation repair of old and new sewage pipes, the inside of the pipeline is cleaned with water jet spray and scraper, dried with a blower, and the tube impregnated with the resin liquid is inserted into the pipeline from the ground or outside the pipeline to the inside of the pipeline using an inverter. It is a technique to harden the resin liquid impregnated tube by injecting and circulating hot water or steam inside the inverted tube, and then inserting the resin liquid impregnated tube by the conventional technique using a drum type inverting device and injecting water into the end of the pipe. Hydrostatic reversal insertion method in which a tube is installed to reverse the tube using head pressure. In addition, there is a continuous tube reversal insertion method using an airborne composite vertical tube fixed inverted insertion device (utility model 20-0378117) and a separate tube feed feeder, and among the conventional techniques, an integrated citron flexible tube feeder similar to the present invention is used. There is a thermosetting resin solution impregnated tube self-reverse insertion regeneration method (Patent 10-1020932) of the used water and sewage old pipe. The large-diameter water and sewage pipelines to be constructed by the present invention, in the case of water supply pipes, have wide pipelines crossing farmland or rivers, and are connected to long distances by water pipes, and the depth of burial is very deep, and the pipelines are connected to roads. Since there are many places that cannot be cut, the distance between the pipes and the installation of manholes cannot be shortened. Therefore, manholes are usually installed at intervals of about 500m ~ 1km.In the case of large diameter pipes of sewer pipes, the material of the pipes is mainly concrete structure. It is impossible to cut the pipe in the middle of the pipeline, and the shape of the tube is mostly rectangular tube rather than the circular tube, so the pipeline is much larger than the size of the manhole, and the distance between the manhole and the manhole is also very long, so as outside the pipeline Or there is a limit to the method of inverting the tube into the tube into the ground from the ground.

The present invention does not cut the large diameter of the upper and lower sewer pipes, the inverting insertion device and the tube using the manhole to enter the tube inside the tube to insert the tube in the inside of the pipeline, so the conventional inverting device can be used larger than the diameter to be constructed There are no drawbacks. The drum type reversal insertion device of the prior art is very large and heavy, having a diameter of about 2m and a width of about 2m, so that it is impossible to enter the pipeline because it is a large device mounted on a large cargo truck or trailer. Continuous tube reversing inserting device using tube fixed reversing inserting device and detachable tube feeding feeder opens the tube into plate and enters into the inverter, so the width of the reversing device is at least 1.5 times larger than the diameter of the target diameter to enter the pipeline. There is an impossible disadvantage. In addition, the thermosetting resin-impregnated tube self-reverse insertion regeneration method for water and sewage aging pipes using an integrated citron-type flexible tube feeder is a U-shaped steel frame larger than the diameter of the tube supply part and the compressed air shielding part of the flexible tube feeder when the tube is inverted and inserted. Since it must be equipped with the tube reversal insertion device is a disadvantage that it is impossible to enter the conduit. In addition, the conventional technology for reversing the insertion of the tube in the pipeline includes a pipeless cutting aging rehabilitation method (Patent 10-0853249) using the pneumatic tube reversal method in the pipe of the old buried large-diameter pipe, this method is the form of the pipe It is applicable to the case of the circular pipe, it is a technology that has a disadvantage that can not be applied to the sewage pipe or water pipe of the large diameter square pipe.

The present invention to supplement the above disadvantages is made of a material of the tube reversal insertion device is a flexible material, not a steel structure, the size of the tube reversing insertion device as a device that can enter the inner diameter of the rehabilitation pipe as a reversal insertion device Is a device that is not influenced by work by entering narrow manholes and pipelines with a flexible feeder composed of an integrally connected joint with a tube. It is an uncut rehabilitation method of the Daegu scenery.

The tube reversing insertion device of the present invention is formed of a steel material, without using a device of a structure that cannot be deformed, and overlaps the tube connection part 5 of the flexible feeder and one end of the tube made of a flexible material, so that sewing and high frequency fusion or Ultrasonic fusion (10) to the flexible feeder and the resin solution impregnated tube structure as shown in Figure 1, the flexible feeder and the tube integrated into the pipeline to the method of the conventionally used U-shaped steel plane In order to exclude, the length of the compressed air shield 4 is increased so that the flexible air feeder is expanded to the maximum by air pressure so that the compressed air shield plate is excited and pushed backward to open the gap so that the function of shielding the air pressure is not lost. Both ends of the width of the compressed air shielding plate are fixed to the inner wall of the flexible feeder The flexible feeder and the tube are integrated with the flexible air feeder, which is configured to prevent the axial air shielding plate from being pushed backward by air pressure and to prevent the compressed air shielding plate from being lifted by the permanent magnet arrangement of the iron powder coating and the upper shielding plate. Likewise, the object of the present invention is to provide a method for inverting a tube in a pipeline without a steel frame.

In order to solve the above problems, the flexible feeder (2) looks at the concept of the present invention by the accompanying drawings as follows. FIG. 1 is a schematic plan view of an integrated flexible feeder and a resin liquid impregnating tube, which is a cross-sectional view of the resin liquid impregnating tube 1 in a flattened state, and as shown in the drawing, a flexible feeder end and one end of the tube. This is overlapped, and is integrally bonded by sewing and high frequency fusion 10 so that internal air pressure is not leaked. FIG. 2 is a cross-sectional side view of an integrated flexible feeder and a resin liquid impregnating tube. Is the same as the description of FIG. Figure 3 is a detailed cross-sectional view of the flexible feeder, the constituent material is a rubber-coated woven fabric of less elasticity or a synthetic resin-coated woven fabric of less elasticity is produced by selecting any one of the flexible material at room temperature, the structure of the flexible feeder 3 The area is divided into the tube supply part 3, the compressed air shielding part 4 and the tube connection part 5, and the diameter of the tube connection part 5 is covered on the outside of the resin-impregnated tube 1, Overlapping and sealing by sewing and high frequency fusion to fit the outer diameter of the tube (1), the width of the tube supply (3) is wider than the flat width of the tube (1) flat size free entry of the tube (1) The compressed air shield is a compressed air shield (4) by folding a portion of the tube supply (3) inward, and the tip of the compressed air shield is a compressed air shield (6) (6-1). (4) the length of the hook The length of the double feeder is kept longer than the diameter of the cylinder to expand, and both ends and the edges of the width of the compressed air shield are fixed to the inner wall of the body of the flexible feeder and bonded (11) so that the flexible feeder is expanded by compressed air injection. Since the compressed air shield 4 is fixed so as not to be reversed, and the compressed air shield length is not reduced, the air injected into the flexible feeder is compressed air upper shield plate 6 and the lower part of the compressed air as shown in FIG. The shield plate 6-1 is in close contact with the surface of the tube PE film to shield the compressed air to prevent the leakage of compressed air to the outside of the flexible feeder, and to increase the shielding capacity of the compressed air shield plate. 6-1) Apply rubber latex containing iron powder that adheres well to the magnet on the back surface to cure and harden or add iron powder to synthetic resin It is applied by any one of application hardening, and the permanent air is arranged in several rows on the compressed air upper shield plate 6 so that the upper and lower shielding plates are contacted at all times by magnetic force, without the steel frame used in the prior art. The flexible feeder made of a structure having an injection nib (7) for injecting compressed air and steam into the tube supply part (3) on the side or the rear of the flexible feeder body and allowing the tube to be reversely inserted therein, and the Insert the tube impregnated with the thermosetting resin liquid into the flexible feeder such as the tube end and the tube feeder part 5 of the flexible feeder to align and join the sewing and high frequency fusion to integrate the flexible feeder and the tube so that compressed air does not leak (Fig. 1) (Fig. 2) to produce an integrated flexible feeder.

The integrated flexible feeder and the resin liquid impregnation tube connect the towing rope 14 of the winch to the end of the tube, and when the compressed air is blown through the compressed air injection nibble 7 of the flexible feeder, the flexible feeder swells. , The internal air is shielded by the compressed air shield plate (6) (6-1), and the tube is inflated and expanded from the tube connection part (5) of the flexible feeder, and the tube enters from the tube supply part (3). The width of the resin-impregnated tube 1 is made to be about 5% narrower than the inner diameter of the target pipe to be constructed so that the tube expands to the maximum after the reversal insertion and prevents wrinkles from occurring in the inner surface of the pipe. The tube 1 is easily influenced by passing through the tube supply part 3 and passing through the compressed air shield 4 through the compressed air shield 6, 6-1. It is. If the reversal insertion of the tube proceeds halfway, the end of the tube (1) passes through the compressed air shield plate (6) (6-1). From this time, the tube is suspended by the winch rope while hanging on the towing rope in the winch. The reversal insert completes the reversal insert.

The present invention is a method capable of reversing the insertion of the tube at any place on the ground as well as inside the pipeline. The renovation of renovated old pipes of small diameter water supply and sewage pipes can be reversed and inserted from outside the pipe, and the shape of the pipe can be applied to round or square pipes. In small-diameter pipeline, excavate the pipeline, cut a part of the tube, clean the inside of the pipeline and dry it, and then insert the flexible feeder and tube into the tube at the inlet of the tube by inverting the tube. Steam is blown through to cure the tube. Tube reversal insertion method of the present invention is not limited to the length of one-time construction because the tube is not put in a drum or a limited device can be repaired long-distance pipe compared to other methods.

When the configuration and operation of the integrated flexible feeder of the present invention is applied to the construction of the uncut rehabilitation repair method of the large diameter water supply and sewage pipe, the working sequence consists of four processes and the process is as follows.

The underground water supply line is excavated to install manhole on the upper part of the pipeline, and the sewer pipe is installed inside the old pipeline by using a high pressure water cleaner and scraper, sandblaster or sewer dredging vehicle. A first step of preparing a step of removing the rust, scale, and deposits and washing to dry the pipe wall;

Inverter integrated by connecting the tube connection part of flexible feeder to the tube impregnated with the thermosetting resin liquid enters into the pipeline through the manhole, and connects the compressed air lake to the injection nib (7), and the winch is pulled to the end of the tube. When the compressed air is injected through the injection nibble by connecting to the rope 14, the flexible feeder is expanded in the conduit and the tube is inverted and inserted into the conduit by inverting as much as the pressure of the compressed air is injected. A second step of completing the tube reversal while the rope is released by the towing rope in the winch when the tube is half-inserted reversely;

A steam exhaust pipe (not shown) is connected to the exposed tube at the end of the pipeline where the reversal insertion is completed by the integrated flexible feeder (2), and steam and compressed air are simultaneously supplied through the inlet tube (7). A third step of performing heat curing in the expanded state of the thermosetting resin liquid impregnated tube to cool the pipeline, and cutting the cured tube protruding from the front and rear of the pipeline to cure and complete the primary construction curing lining 20;

Part of the PE film layer on the surface of the hardened lining is removed with sand grinder electric wire blush for second lining at the lining end inside the pipeline where the primary construction hardening lining is completed. And the flexible liquid feeder and the flexible feeder prepared as in the second process are integrated into the pipeline, and the flexible feeder positions are aligned so that the tube lining overlaps the primary construction hardening lining. As a method of continuing the process, since the lining is continuously performed inside the pipeline through the manhole installed without cutting a large diameter pipeline, the present invention is very economical and highly efficient.

In the embodiment of the present invention, the tube is integrated with the flexible feeder so that the entire apparatus is flexible, so that the large diameter pipe is not cut, and the tube is easily reversed and inserted inside the pipe, and the place has a lot of narrow excavations and underground works. It is easy to enter and adapts well to repair plumbing through the ground or inside the building. The overall maintenance of the large diameter sewage obsolete pipe does not require a device for reversing and inserting a tube. Therefore, the preparation process for reversing and inserting a tube is reduced, thus reducing the manpower. It is a very adaptable method for the overall rehabilitation of water supply pipes in the common wards of multi-unit houses.

1 is a schematic plan cross-sectional view of an integrated flexible feeder
2 is a schematic side cross-sectional view of an integrated posthexable feeder
3 is a detailed view of a flexible feeder
4 is a view showing the insertion of the tube reverse from the outside of the pipeline by the integrated flexible feeder into the pipeline
Figure 5 is a tube inverted insertion construction inside the pipeline for constructing the secondary construction lining subsequent to the primary construction hardening lining

Set the length of 1 section of water supply pipeline and excavate part of the pipeline and install the manhole in the upper part of the pipeline.The sewer pipeline uses the pre-installed manhole to remove the rust, scale, and sediment inside the pipeline with high pressure water cleaner and scraper. After removing, and preparing the process of drying the pipe wall with a blower, after cutting the tube to the length of the construction section, impregnated with a thermosetting resin liquid in the non-woven fabric layer inside the tube (1), the flexible feeder (Fig. 3) Insert the end of the tube to align the end by combining the sewing and high frequency fusion (10) to integrate and align the inlet of the clean pipe of the construction site. Connect the other end of the tube (1) to the towing rope (14) wound around the winch (15), and connect the compressed air lake and the steam lake to the compressed air and steam injection nips (7) in the flexible feeder When blown up, the integrated flexible feeder swells and expands in a cylindrical shape while the tube connection part 5 also expands and the tube is inverted to move forward and pull the tube in. As shown in FIG. 4, the tube reversal starts and is inserted into the pipeline. When half of the tube is inserted, the towing rope connected to the end of the tube is released by the winch to complete the tube reinsertion continuously, and then the steam exhaust pipe is connected to the tube exposed at the end of the pipe to install the exhaust pipe (not shown) out of the pipeline. And, while maintaining the pressure on the tube inside the pipeline while blowing the steam in the tube in the expanded state to heat the tube. After curing is completed, the pressure is maintained under pressure, and then the ends of the curing tube are cut, the cut curing lining is aligned, and the primary curing lining is used. After removing part of the PE film film at the end of the primary curing lining, the secondary lining is overlapped with the primary lining, and the tube is inserted by reverse insertion in the same order as the primary to cure, and the lining end is cut and aligned.

1. Thermosetting liquid impregnation tube 2. Flexible feeder
3. Tube Supply 4. Compressed Air Shield
5. Tube connection 6. Compressed air upper shield
6-1. Compressed air shield plate 7. Compressed air and steam injection
8. Thermosetting resin impregnated nonwoven fabric layer
9. PE film coating layer 10. Sewing and high frequency fusion
11. Shield fixing part 12. Old buried pipe
13. Manholes or Excavations 14. Tow Ropes
15. Winch 16. Compressed Air and Steam
17. Steam exhaust pipe 18. Exhaust silencer
19. Boilers and compressors 20. Primary construction hardening linings
21. Permanent Magnet 22. Iron Powder Containing Coating Membrane

Claims (1)

The material of flexible feeder is made of rubber coated woven fabric with less elasticity or synthetic resin coated woven fabric with less elasticity and manufactured by selecting any one of flexible materials at room temperature.The structure of the flexible feeder is divided into three areas. 3) and compressed air shielding part (4) and tube connection part (5), and the diameter of the tube connection part (5) is covered on the outside of the resin-impregnated tube (1) overlapping the end of the tube and sealed by sewing and high frequency fusion The tube 1 is sized to fit the outer diameter of the tube 1, and the width of the tube supply portion 3 is wider than the flat width of the tube 1 so that the tube 1 is free to enter the compressed air shield. A part of the tube supply part 3 is folded inward to form a compressed air shield 4, the tip of which is a compressed air shield 6, 6-1, and the length of the compressed air shield 4 is flexible. Feeder swells and won The length of the compressed air shield is kept longer than the diameter, and both ends and the edge of the width of the compressed air shield are fixed to the inner wall of the body of the flexible feeder and bonded (11) so that the flexible air feeder is expanded even when the flexible feeder is expanded by compressed air injection (4). ), So that the compressed air shielding length is not reduced, and the air injected into the flexible feeder causes the compressed air upper shield plate 6 and the compressed air lower shield plate 6-1 to become the tube PE film. It is in close contact with the surface of the compressed air to prevent the leakage of compressed air to the outside of the flexible feeder, and to increase the shielding capacity of the compressed air shield plate, the surface of the lower surface of the compressed air lower shield plate (6-1) to the magnet on the surface well Either by applying rubber latex containing adhered iron powder to cure curing or adding and curing iron powder to synthetic resin On top of the compressed air upper shield plate 6, permanent magnets are arranged in several rows so that the upper and lower shield plates are contacted at all times by magnetic force, and compressed air and steam are supplied to the tube supply part 3 on the side or the rear of the flexible feeder body. To produce a flexible feeder made of a structure having a blowable injection nib (7);
Insert the tube (1) impregnated with the thermosetting resin into the flexible feeder, align the tube end (5) of the tube and the flexible feeder with the flexible feeder, and join the sewing and high frequency fusion to integrate the flexible feeder and the tube so that compressed air does not leak. To produce an integrated flexible feeder;
In the process of cutting-free rehabilitation repair method applied in the construction, the underground water supply pipe is excavated and manholes are installed in the upper part of the pipeline, and the sewer pipe is installed in the old pipe through the manholes that are installed in the old pipe. A first step of using a blaster or sewer dredging vehicle to remove rust, scale, and deposits in the pipeline, and to clean and dry the pipeline wall;
Inverter integrated by connecting the tube connection part 5 of the flexible feeder to the tube impregnated with the thermosetting resin liquid enters the pipeline through the manhole, and then connects the compressed air lake to the injection valve 7 and the winch at the tube end. When the compressed air is injected through the injection tunnel, the flexible feeder expands in the pipeline and the tube is inverted and inverted and inserted into the pipeline as much as the pressure of the compressed air is injected. A second process of releasing the towing rope in the winch to complete the tube reversal;
The steam exhaust pipe is connected to the exposed tube at the end of the pipeline where the reversal insertion is completed by the integrated flexible feeder (2), and the steam and compressed air are simultaneously supplied through the injection nibble (7) in the reversing tube to supply the thermosetting resin impregnated tube. A third step of cooling the pipeline after the heat curing in the expanded state, and curing the primary construction curing lining by cutting the curing tube protruding from the front and rear of the pipeline;
Part of the PE film layer on the surface of the hardened lining is removed by sand grinder electric wire blush to make the second lining at the end of the lining inside the pipeline where the primary construction hardening lining is completed. Process to ensure good adhesion, integrate the resin solution impregnated tube and the flexible feeder prepared in the second process and move the inside of the pipeline, and arrange the flexible feeder position so that the tube lining overlaps the primary construction hardening lining. Self-reversal insertion of thermosetting resin-impregnated tube using an integrated flexible feeder, characterized in that the lining is continuously performed inside the pipeline through the installed manhole without cutting the large-diameter pipeline as a continuous process of step 4 and step 4. Unbreakable rehabilitation of large diameter water and sewage pipes

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