WO2002090676A1 - An apparatus and method for repairing pipelines without digging - Google Patents
An apparatus and method for repairing pipelines without digging Download PDFInfo
- Publication number
- WO2002090676A1 WO2002090676A1 PCT/KR2001/001750 KR0101750W WO02090676A1 WO 2002090676 A1 WO2002090676 A1 WO 2002090676A1 KR 0101750 W KR0101750 W KR 0101750W WO 02090676 A1 WO02090676 A1 WO 02090676A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hot water
- reinforcing tube
- hydraulic
- pipeline
- rotary drum
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
- B29C63/36—Lining or sheathing of internal surfaces using tubular layers or sheathings being turned inside out
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1651—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being everted
Definitions
- the present invention relates to an apparatus and a method for repairing pipelines without digging, and more particularly, to an apparatus and a method for repairing drainage pipelines, which are buried in the ground, without digging the ground.
- the apparatus and method for repairing pipelines without digging which can improve construction efficiency, economical efficiency and reliability by using the convenient apparatus including a rotary drum, on which a hot water hose and a reinforcing tube are wound, and a hydraulic inversion tank for inverting and adhering an end of the reinforcing tube.
- a method for repairing the pipeline without digging is to form a new composite pipe inside the sewage pipe by inserting a reinforcing tube into the superannuated pipeline.
- the method for repairing the pipelines without digging l has various advantages in respect of the construction efficiency, economical efficiency and reliability because a road repairing construction is not needed.
- the method for repairing the pipelines without digging is a construction method for inserting and fixing the reinforcing tube 2, which consists of a waterproof coating layer 2a or a film layer and an adhesive resin impregnated felt layer 2b, into the superannuated and buried pipe 1.
- the reinforcing tube 2 in which the adhesive resin impregnated felt layer 2b is located inside and the waterproof coating layer 2a is located on the surface, is inverted and inserted into the buried pipe 1. So, the adhesive resin impregnated felt layer 2b, which is an inner surface, is converted into an outer surface and adhered on an inner wall of the buried pipe, and thereby the reinforcing tube is coated and adhered on the inner wall of the buried pipe.
- the reference numeral 2c designates a fiber jacket.
- FIG. 2 illustrates an exemplary view of a conventional apparatus 10 for repairing pipelines without digging to construct the reinforcing tube.
- the conventional apparatus 10 for repairing pipelines without digging is to invert and insert the reinforcing tube 2 by using hydraulic pressure and adhere and fix it to the buried pipe 1, wherein a feed water tank 11 is mounted to feed water for applying inversion hydraulic pressure to the reinforcing tube 2, and a tower structure 12 of a prescribed height is mounted to mount the feed water tank 11. An inlet of the reinforcing tube is fixed on a prescribed height above a manhole of the. feed water tank 11.
- the feed water tank 11 includes a feed water pipe 13 having a boiler and a pump and a discharge pipe 14 for pumping up cooled water.
- the inverted waterproof coating surface of the reinforcing tube 2 is filled with water.
- the reinforcing tube 2 is continuously inverted by hydraulic pressure while the water drops.
- the dropping water enters a construction section of the buried pipe, and at the same time, the adhesive resin impregnated felt layer 2b is adhered on the inner wall of the buried pipe 1.
- the entrance of the reinforcing tube 2 is finished, hot water heated by the boiler is fed, and at the same time, cooled water is discharged.
- resin adhesive is hardened by heat of the hot water, and thereby, the tied end portion of the reinforcing tube 2, which is located inside the construction section, is cut to complete the repairing work of the pipeline.
- the prior arts use hydraulic pressure generating by self- weight of water by making a location where water drops, i.e., location of the feed water tank 11, high to invert the reinforcing tube 2.
- the feed water tank 11 must be supported and a volume of the tower structure 12, which is a ladder step for workers, must be considerably large for easy arrangement work and construction work of the feed water pipe and the discharge pipe.
- the tower structure 12 is 7 ⁇ 8m in height, and thereby materials and manpower are considerably wasted and working efficiency is lowered.
- the high tower structure may generate dangerous situations due to contact with electric wires installed on the air. Furthermore, the tower structure occupies a large area, thereby causing traffic jam and making the movement of equipments difficult.
- the apparatus and method which invert, adhere and harden the reinforcing tube into a buried pipe using hydraulic pressure to repair the damaged and buried pipe of water and sewage pipelines without digging, includes a hydraulic inversion tank receiving and supporting a rotary drum, which turns on a hot water hose and the reinforcing tube, inside and inverting and fixing the reinforcing tube on a flange formed at a side thereof, and direction convertible mounting means for freely changing the movement and directions of a construction device having water feeding and heating and hardening means and its components.
- the present invention provides an apparatus for repairing pipelines including: a rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; a hydraulic inversion tank receiving and supporting the rotary drum inside, the hydraulic inversion tank having an inlet of the reinforcing tube having a flange for fixing an end of the reinforcing tube and an inner space forming hydraulic pressure; pressuring and water feeding means having a motor pump for supplying hydraulic pressure into the hydraulic inversion tank; and heating and hardening means for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube.
- the heating and hardening means includes: a hot water supply pipeline for feeding hot water heated in a boiler into the hydraulic inversion tank; a recovery pipeline having a circulation pump for circulating cooled water of the hydraulic inversion tank to the boiler and a discharge valve; and a hot water hose having an end fixed to the hot water supply pipeline to communicate and the other end connected and fixed to a tow rope of the reinforcing tube, the hot water hose having a water outlet formed at the end connected to the reinforcing tube to discharge hot water from an innermost side of the reinforcing tube, the hot water hose being wound on the drum.
- the rotary drum shaft has power transmitting means at a side and a hot water pipeline communicating with the boiler hot water supply pipeline in the inside of the side thereof, and wherein an end of the shaft on which the hot water supply pipeline and the hot water pipeline are formed is jointed by a rotary joint.
- the hot water pipeline is formed at the inside from a side end to the center in the shaft of the rotary drum, the feed water pipeline is formed at the inside of the other side end, and the ends of each pipeline are connected by each connection pipe and the rotary joint.
- the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means are mounted on direction convertible mounting means, which is installed on a vehicle to freely change directions when they are moved or operated.
- the direction convertible mounting means includes a deceleration gear driven by a driving motor fixed on a car body, and a mounting stand fixed on the internal swing gear internally contacting with the deceleration gear, the mounting stand for mounting the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means.
- a method for repairing the pipelines without digging, which inverts and introduces a reinforcing tube, in which adhesive resin is impregnated, and hardens the adhesive resin of the reinforcing tube including: a preparing step of fixing an end of a hot water hose, which has a water outlet at an end connected with the reinforcing tube, to communicate with a hot water pipeline formed inside a shaft of the rotary drum rotated by a power unit, winding a hot water hose on the rotary drum, connecting a tow rope, which ties an end of the reinforcing tube, to an end of the hot water hose, winding the tow rope on the rotary drum, fixing the other end of the reinforcing tube to a flange of a hydraulic inversion tank, which receives the rotary drum inside, has a feed water valve and a discharge valve and fixes the end of the reinforcing tube, in an inverted state, and locating at a position near to a construction area; an inverting and a discharge
- the present invention can be changed, converted, replaced and substituted within a range of the business model, technical method and system and is not restricted in the above.
- FIG. 1 illustrates a view of a conventional reinforcing tube used in repairing buried pipes without digging
- FIG. 2 illustrates a view of a conventional repairing apparatus for repairing pipelines without digging
- FIG. 3 illustrates a brief view of a repairing apparatus for repairing without digging according to a preferred embodiment of the present invention
- FIG. 4 illustrates a plan view of a hydraulic inversion tank according to the preferred embodiment of the present invention
- FIG. 5 illustrates a vertically sectional view according to the preferred embodiment of the present invention
- FIG. 6 illustrates a brief plan view of direction convertible mounting means according to the preferred embodiment of the present invention
- FIG. 7 illustrates a view showing a process of work according to the present invention.
- FIG. 1 illustrates a view of a conventional reinforcing tube used in repairing buried pipes without digging.
- FIG. 2 illustrates a view of a conventional repairing apparatus for repairing pipelines without digging.
- FIG. 3 illustrates a brief view of a repairing apparatus for repairing without digging according to a preferred embodiment of the present invention.
- FIG. 4 illustrates a plan view of a hydraulic inversion tank according to the preferred embodiment of the present invention.
- FIG. 5 illustrates a vertically sectional view according to the preferred embodiment of the present invention.
- FIG. 6 illustrates a brief plan view of direction convertible mounting means according to the preferred embodiment of the present invention, and
- FIG. 7 illustrates a view showing a process of work according to the present invention.
- FIG. 1 there are a buried pipe 1 , a reinforcing tube 2, a waterproof coating layer 2a, a felt layer 2b and a tow rope 3 shown in FIG. 1, a repairing apparatus 10, a feed water tank 11, a tower structure 12, a feed water pipe 13 and a discharge pipe 14 according to the prior art shown in FIG.
- a rotary drum 110 a shaft 111, a drum 112, power transmitting means 113, a rotary joint 115, a feed water pipeline 116, a hydraulic inversion tank 120, an inlet 121 of the reinforcing tube, a flange 122, an inner space 123, a bearing 125, a pressure meter 127, water feeding means 130, a water supply valve 131, a motor pump 132, heating and hardening means 140, a hot water hose 141, a water outlet 141a, a boiler 142, a circulation pump 143, a hot water supply pipeline 144, a discharge valve 145, a recovery pipeline 146, direction convertible mounting means 150, a motor 151, a deceleration gear 152, an internal swing gear 153 and a mounting stand 155 according to the present invention.
- the apparatus As shown in FIGS. 3 to 5, according to the present invention, the apparatus
- the 100 for repairing the pipelines without digging by inverting and inserting the reinforcing tube, in which adhesive resin is impregnated, using hydraulic pressure and by hardening the adhesive resin includes: the rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; the hydraulic inversion tank 120 receiving and supporting the rotary drum 110 inside, the hydraulic inversion tank 120 having the inlet 121 of the reinforcing tube having the flange 122 for fixing an end of the reinforcing tube 2 and the inner space 123 forming hydraulic pressure; the pressuring and water feeding means 130 having the motor pump 132 for supplying hydraulic pressure into the hydraulic inversion tank 120; and the heating and hardening means 140 for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube.
- the heating and hardening means 140 includes the hot water supply pipeline 144 for feeding hot water heated in the boiler 142 into the hydraulic inversion tank 120, the recovery pipeline 146 having the circulation pump 143 for circulating cooled water of the hydraulic inversion tank 120 to the boiler 142 and the discharge valve 145, and the hot water hose 141 having an end fixed to the hot water supply pipeline 144 to communicate and the other end connected and fixed to the tow rope 3 of the reinforcing tube 2.
- the hot water hose 141 has a water outlet 141a formed at the end connected to the reinforcing tube 2 to discharge hot water from an innermost side of the reinforcing tube 2, and is wound on the drum 112.
- the rotary drum shaft 111 has the power transmitting means 113 at a side and the hot water pipeline 114 communicating with the boiler hot water supply pipeline 144 in the inside of the side thereof, and an end of the shaft on which the hot water supply pipeline 144 and the hot water pipeline 114 are formed is jointed by the rotary joint 115.
- the hot water pipeline 114 is formed at the inside from a side end to the center in the shaft of the rotary drum 110, the feed water pipeline 116 is formed at the inside of the other side end, and the ends of each pipeline are connected by each connection pipe and the rotary joint 115.
- the hydraulic inversion tank 120, the pressuring and water feeding means 130 and the heating and hardening means 140 are mounted on the direction convertible mounting means 150 mounted on a vehicle to freely change directions when they are moved or operated.
- the direction convertible mounting means 150 includes the deceleration gear 152 driven by the driving motor 151 fixed on a car body 160, and the mounting stand 155 fixed on the internal swing gear 153 internally contacting with the deceleration gear 152 and mounting the hydraulic inversion tank 120, the pressuring and water feeding means 130 and the heating and hardening means 140.
- the reference numeral 157 designates a bearing.
- the mounting stand 155 may rotate in right and left directions, i.e., 180°, by the motor 151 rotating forward and backward.
- the hydraulic inversion tank 120 may have an inlet (not shown) for winding the reinforcing tube.
- a method for repairing the pipelines without digging according to the present invention which inverts and introduces the reinforcing tube 2, in which the adhesive resin is impregnated, and hardens the adhesive resin of the reinforcing tube, includes: a preparing step of fixing an end of the hot water hose 141, which has the water outlet 141a at the end connected with the reinforcing tube 2, to communicate with the hot water pipeline 114 formed inside the shaft of the rotary drum 110 rotated by the power unit, winding the hot water hose on the drum, connecting the tow rope 3, which ties the end of the reinforcing tube 2, to the end of the hot water hose 141, winding the tow rope 3 on the rotary drum 110,
- FIG. 7 illustrates an exemplary view showing a process of repairing the pipelines without digging according to the present invention in order.
- FIG. 7a shows a state before the inversion
- FIG. 7b shows a state during the inversion
- FIG. 7c shows a state after the inversion.
- the reinforcing tube 2 is introduced through the inlet 121 of the reinforcing tube of the tank and wound on the rotary drum 110.
- the end of the reinforcing tube is fixed to the flange 122 in the inverted state (FIG. 7a) and a prescribed hydraulic pressure is applied to the inside of the hydraulic inversion tank 120 through the feed water pipeline 116 formed on the shaft, the adhesive resin impregnated surface 2b of the reinforcing tube enters the buried pipe 1 of the construction section while being inverted and contacted on the inner wall of the buried pipe 1.
- water heated in the boiler 142 (to the temperature of about 80 ⁇ 90 degrees) is discharged through the hot water pipeline 114 of the shaft and the hot water hose 141 and through the hot water outlet 141a, heat is supplied and the adhesive resin is hardened.
- the inversion and introduction of the reinforcing tube 2 is easy through the hydraulic inversion tank 12 ⁇ and the pressuring and water feeding means 130, and discharge of hot water by the heating and hardening means 140 for hardening the adhesive resin is carried out at the farthest location of the reinforcing tube, thereby effectively performing supply and circulation of hot water.
- the hydraulic inversion tank 120 is mounted on the mounting stand, which freely changes the directions, the vehicle mounting the equipments can be located freely without regard to the construction location and direction of the pipeline, thereby making the construction work easy and minimizing the occupation of the road. Because the tower structure, which is a serious problem in the prior arts, is not needed, construction costs for manpower, materials and installation space are considerably reduced and a danger due to the contact with the electric cable mounted on the air is removed.
- the reinforcing tube is wound on the rotary drum, inserted into the inside of the hydraulic inversion tank and mounted in the direction convertible mounting means added in the vehicle, additional vehicle for conveying the reinforcing tube is not needed and the location and direction of the vehicle can be freely changed.
- the present invention is a convenient construction apparatus using the hydraulic inversion tank and the pressuring and water feeding means for receiving and supporting the rotary drum, on which the hot water hose and the reinforcing tube are wounded, inside and for inverting and fixing the end of the reinforcing tube to the flange of the inlet of the reinforcing tube.
- the present invention can easily supply hydraulic pressure required for inverting and inserting a reinforcing tube without regard to a depth and a . length of a construction section, and smoothly harden the adhesive resin through efficient hot water supply and circulation for hardening adhesive resin.
- the present invention can reduce material cost, manpower cost and duration required for the construction work, be safe from a danger due to the contact with electric wires arranged on the air, and minimize traffic jam because of reduction of occupied area and duration required for the construction because a tower structure that occurred various problems in the prior arts, is not needed.
- the present invention can make the location of the vehicle free by converting the directions of the components, such as the hydraulic inversion tank. Additionally, the present invention can considerably reduce expenses required for conveying construction materials.
Abstract
Disclosed are an apparatus and a method for repairing pipelines without digging. The apparatus includes; a rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; a hydraulic inversion tank receiving and supporting the rotary drum inside, the hydraulic inversion tank having an inlet of the reinforcing tube having a flange for fixing an end of the reinforcing tube and an inner space forming hydraulic pressure; pressuring and water feeding means having a motor pump for supplying hydraulic pressure into the hydraulic inversion tank; and heating and hasdening means for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube.
Description
AN APPARATUS A DJyIFTHOJJJEOJ REPATRING PIPELINES.
WTTHOUJ DXGGING
Technical Field
The present invention relates to an apparatus and a method for repairing pipelines without digging, and more particularly, to an apparatus and a method for repairing drainage pipelines, which are buried in the ground, without digging the ground. Especially, the apparatus and method for repairing pipelines without digging, which can improve construction efficiency, economical efficiency and reliability by using the convenient apparatus including a rotary drum, on which a hot water hose and a reinforcing tube are wound, and a hydraulic inversion tank for inverting and adhering an end of the reinforcing tube.
Backg»_>round Art
In general, various water and sewage pipelines buried in the ground are gradually superannuated as time passes. Thereby, in case of the water pipelines, an immense amount of water is leaked due to corrosion of the water pipelines and drinking water is polluted due to the inflow of rust stained water. Moreover, in case of the sewage pipelines, sewage is flown out from the pipelines due to the occurrence of cracks, thereby polluting soil and underground water. Therefore, the prior arts have a problem that human's living environment is polluted. In repairing the superannuated pipeline, which is damaged due to the cracks or others, a method for repairing the pipeline without digging is to form a new composite pipe inside the sewage pipe by inserting a reinforcing tube into the superannuated pipeline. The method for repairing the pipelines without digging l
has various advantages in respect of the construction efficiency, economical efficiency and reliability because a road repairing construction is not needed.
In general, as shown in FIG. 1, the method for repairing the pipelines without digging is a construction method for inserting and fixing the reinforcing tube 2, which consists of a waterproof coating layer 2a or a film layer and an adhesive resin impregnated felt layer 2b, into the superannuated and buried pipe 1.
The reinforcing tube 2, in which the adhesive resin impregnated felt layer 2b is located inside and the waterproof coating layer 2a is located on the surface, is inverted and inserted into the buried pipe 1. So, the adhesive resin impregnated felt layer 2b, which is an inner surface, is converted into an outer surface and adhered on an inner wall of the buried pipe, and thereby the reinforcing tube is coated and adhered on the inner wall of the buried pipe. In the drawings, the reference numeral 2c designates a fiber jacket.
FIG. 2 illustrates an exemplary view of a conventional apparatus 10 for repairing pipelines without digging to construct the reinforcing tube.
As shown in FIG. 2, the conventional apparatus 10 for repairing pipelines without digging is to invert and insert the reinforcing tube 2 by using hydraulic pressure and adhere and fix it to the buried pipe 1, wherein a feed water tank 11 is mounted to feed water for applying inversion hydraulic pressure to the reinforcing tube 2, and a tower structure 12 of a prescribed height is mounted to mount the feed water tank 11. An inlet of the reinforcing tube is fixed on a prescribed height above a manhole of the. feed water tank 11.
«
An end, which is the inlet of the reinforcing tub 2, is inverted into a state that the adhesive resin impregnated surface becomes the inner surface and fixed to a flange of a lower end of the feed water tank 11 to apply hydraulic pressure to the waterproof coating layer 2a. The other end of the reinforcing tub 2, which is adhered flat due to the adhesive resin impregnated in the inside, is tied and hung
on a tow rope to prevent a leakage of hydraulic pressure. The feed water tank 11 includes a feed water pipe 13 having a boiler and a pump and a discharge pipe 14 for pumping up cooled water.
When water is supplied to the feed water tank 11, the inverted waterproof coating surface of the reinforcing tube 2 is filled with water. The reinforcing tube 2 is continuously inverted by hydraulic pressure while the water drops. The dropping water enters a construction section of the buried pipe, and at the same time, the adhesive resin impregnated felt layer 2b is adhered on the inner wall of the buried pipe 1. The entrance of the reinforcing tube 2 is finished, hot water heated by the boiler is fed, and at the same time, cooled water is discharged. Through the above process, resin adhesive is hardened by heat of the hot water, and thereby, the tied end portion of the reinforcing tube 2, which is located inside the construction section, is cut to complete the repairing work of the pipeline. The prior arts use hydraulic pressure generating by self- weight of water by making a location where water drops, i.e., location of the feed water tank 11, high to invert the reinforcing tube 2. For this, the feed water tank 11 must be supported and a volume of the tower structure 12, which is a ladder step for workers, must be considerably large for easy arrangement work and construction work of the feed water pipe and the discharge pipe.
The tower structure 12 is 7 ~ 8m in height, and thereby materials and manpower are considerably wasted and working efficiency is lowered.
*
Moreover, the high tower structure may generate dangerous situations due to contact with electric wires installed on the air. Furthermore, the tower structure occupies a large area, thereby causing traffic jam and making the movement of equipments difficult.
Additionally, by supplying hot water of the boiler for hardening the
adhesive resin into an inlet of the construction section, it is difficult to circulate cooling water. Moreover, because discharge pressure operated with the pump does not act in a condition of a prescribed depth under the ground (7m under the ground), it is difficult to discharge cooled water. Furthermore, the prior art has additional problems that it is difficult to construction and construction expenses are largely increased because a conveying vehicle loading the reinforcing tubes in zigzags is needed and manpower is wasted.
DisclQSure-Oi Inv.entiojn
Therefore, it is an object of the present invention to provide an apparatus and a method for repairing pipelines without digging, which can easily supply hydraulic pressure required for inverting and inserting a reinforcing tube without regard to a depth and a length of a construction section, and which can conveniently perform a construction work through efficient hot water supply and circulation for hardening adhesive resin.
It is another object of the present invention to provide an apparatus and a method for repairing pipelines without digging, which can reduce material cost, manpower cost and duration required for the construction work by freely changing a direction and a location of an equipment vehicle, which can be safe from a danger due to the contact with electric wires arranged on the air, and which can minimize traffic jam because of reduction of occupied area and duration required for the construction because a tower structure that occurred various problems in the prior arts, is not needed. ' It is a further object of the present invention to provide an apparatus and a method for repairing pipelines without digging, which can considerably reduce expenses required for conveying construction materials.
For them, the apparatus and method, which invert, adhere and harden the reinforcing tube into a buried pipe using hydraulic pressure to repair the damaged and buried pipe of water and sewage pipelines without digging, includes a hydraulic inversion tank receiving and supporting a rotary drum, which turns on a hot water hose and the reinforcing tube, inside and inverting and fixing the reinforcing tube on a flange formed at a side thereof, and direction convertible mounting means for freely changing the movement and directions of a construction device having water feeding and heating and hardening means and its components. To achieve the above objects, the present invention provides an apparatus for repairing pipelines including: a rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; a hydraulic inversion tank receiving and supporting the rotary drum inside, the hydraulic inversion tank having an inlet of the reinforcing tube having a flange for fixing an end of the reinforcing tube and an inner space forming hydraulic pressure; pressuring and water feeding means having a motor pump for supplying hydraulic pressure into the hydraulic inversion tank; and heating and hardening means for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube. In a preferred embodiment of the present invention, the heating and hardening means includes: a hot water supply pipeline for feeding hot water heated in a boiler into the hydraulic inversion tank; a recovery pipeline having a circulation pump for circulating cooled water of the hydraulic inversion tank to the boiler and a discharge valve; and a hot water hose having an end fixed to the hot water supply pipeline to communicate and the other end connected and fixed to a tow rope of the reinforcing tube, the hot water hose having a water outlet formed at the end connected to the reinforcing tube to discharge hot water from an
innermost side of the reinforcing tube, the hot water hose being wound on the drum.
In the preferred embodiment of the present invention, the rotary drum shaft has power transmitting means at a side and a hot water pipeline communicating with the boiler hot water supply pipeline in the inside of the side thereof, and wherein an end of the shaft on which the hot water supply pipeline and the hot water pipeline are formed is jointed by a rotary joint.
The hot water pipeline is formed at the inside from a side end to the center in the shaft of the rotary drum, the feed water pipeline is formed at the inside of the other side end, and the ends of each pipeline are connected by each connection pipe and the rotary joint.
In the preferred embodiment of the present invention, the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means are mounted on direction convertible mounting means, which is installed on a vehicle to freely change directions when they are moved or operated.
The direction convertible mounting means includes a deceleration gear driven by a driving motor fixed on a car body, and a mounting stand fixed on the internal swing gear internally contacting with the deceleration gear, the mounting stand for mounting the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means.
A method for repairing the pipelines without digging, which inverts and introduces a reinforcing tube, in which adhesive resin is impregnated, and hardens the adhesive resin of the reinforcing tube, the method including: a preparing step of fixing an end of a hot water hose, which has a water outlet at an end connected with the reinforcing tube, to communicate with a hot water pipeline formed inside a shaft of the rotary drum rotated by a power unit, winding a hot water hose on the rotary drum, connecting a tow rope, which ties an end of the reinforcing tube, to
an end of the hot water hose, winding the tow rope on the rotary drum, fixing the other end of the reinforcing tube to a flange of a hydraulic inversion tank, which receives the rotary drum inside, has a feed water valve and a discharge valve and fixes the end of the reinforcing tube, in an inverted state, and locating at a position near to a construction area; an inverting and introducing step of inverting the reinforcing tube by applying hydraulic pressure to the reinforcing tube by water fed inside the hydraulic inversion tank through the operation of the pressuring and water feeding means, and contacting the adhesive resin impregnated surface onto an inner wall of the sewage pipe; an adhesive resin hardening step of discharging hot water heated in the boiler and supplying heat to the innermost side of the construction section through a hot water supply pipeline and an water outlet of the hot water hose by stopping the water feed and operating heating and hardening means, and circulating cooling water returned into a hydraulic inversion tank into a boiler through a discharge valve and a recovery pipeline; and a finishing step of stopping the operation of heating and hardening means, such as the discharge valve and a circulation pump linked with the boiler, cutting the inner end portion tied on the tow rope of the reinforcing tube, and winding again the hot water hose on the rotary drum by operating driving means.
The present invention can be changed, converted, replaced and substituted within a range of the business model, technical method and system and is not restricted in the above.
Further objects and advantages of the invention can be more fully
understood from the following detailed description taken in conjunction with the accompanying drawing in which:
FIG. 1 illustrates a view of a conventional reinforcing tube used in repairing buried pipes without digging; FIG. 2 illustrates a view of a conventional repairing apparatus for repairing pipelines without digging;
FIG. 3 illustrates a brief view of a repairing apparatus for repairing without digging according to a preferred embodiment of the present invention;
FIG. 4 illustrates a plan view of a hydraulic inversion tank according to the preferred embodiment of the present invention;
FIG. 5 illustrates a vertically sectional view according to the preferred embodiment of the present invention;
FIG. 6 illustrates a brief plan view of direction convertible mounting means according to the preferred embodiment of the present invention; and FIG. 7 illustrates a view showing a process of work according to the present invention.
B^&tMode-ior Carrying Qjiline Invention
The present invention will now be described in detail in connection with preferred embodiments with reference to the accompanying drawings. For reference, like reference characters designate corresponding parts throughout several views.
FIG. 1 illustrates a view of a conventional reinforcing tube used in repairing buried pipes without digging. FIG. 2 illustrates a view of a conventional repairing apparatus for repairing pipelines without digging. FIG. 3 illustrates a brief view of a repairing apparatus for repairing without digging according to a preferred embodiment of the present invention. FIG. 4 illustrates
a plan view of a hydraulic inversion tank according to the preferred embodiment of the present invention. FIG. 5 illustrates a vertically sectional view according to the preferred embodiment of the present invention. FIG. 6 illustrates a brief plan view of direction convertible mounting means according to the preferred embodiment of the present invention, and FIG. 7 illustrates a view showing a process of work according to the present invention. In the drawings, there are a buried pipe 1 , a reinforcing tube 2, a waterproof coating layer 2a, a felt layer 2b and a tow rope 3 shown in FIG. 1, a repairing apparatus 10, a feed water tank 11, a tower structure 12, a feed water pipe 13 and a discharge pipe 14 according to the prior art shown in FIG. 2, and a repairing apparatus 100, a rotary drum 110, a shaft 111, a drum 112, power transmitting means 113, a rotary joint 115, a feed water pipeline 116, a hydraulic inversion tank 120, an inlet 121 of the reinforcing tube, a flange 122, an inner space 123, a bearing 125, a pressure meter 127, water feeding means 130, a water supply valve 131, a motor pump 132, heating and hardening means 140, a hot water hose 141, a water outlet 141a, a boiler 142, a circulation pump 143, a hot water supply pipeline 144, a discharge valve 145, a recovery pipeline 146, direction convertible mounting means 150, a motor 151, a deceleration gear 152, an internal swing gear 153 and a mounting stand 155 according to the present invention. As shown in FIGS. 3 to 5, according to the present invention, the apparatus
100 for repairing the pipelines without digging by inverting and inserting the reinforcing tube, in which adhesive resin is impregnated, using hydraulic pressure and by hardening the adhesive resin includes: the rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; the hydraulic inversion tank 120 receiving and supporting the rotary drum 110 inside, the hydraulic inversion tank 120 having the inlet 121 of the reinforcing tube having the flange 122 for fixing an end of the reinforcing tube 2 and the inner
space 123 forming hydraulic pressure; the pressuring and water feeding means 130 having the motor pump 132 for supplying hydraulic pressure into the hydraulic inversion tank 120; and the heating and hardening means 140 for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube.
The heating and hardening means 140 includes the hot water supply pipeline 144 for feeding hot water heated in the boiler 142 into the hydraulic inversion tank 120, the recovery pipeline 146 having the circulation pump 143 for circulating cooled water of the hydraulic inversion tank 120 to the boiler 142 and the discharge valve 145, and the hot water hose 141 having an end fixed to the hot water supply pipeline 144 to communicate and the other end connected and fixed to the tow rope 3 of the reinforcing tube 2. The hot water hose 141 has a water outlet 141a formed at the end connected to the reinforcing tube 2 to discharge hot water from an innermost side of the reinforcing tube 2, and is wound on the drum 112.
It is preferable that the rotary drum shaft 111 has the power transmitting means 113 at a side and the hot water pipeline 114 communicating with the boiler hot water supply pipeline 144 in the inside of the side thereof, and an end of the shaft on which the hot water supply pipeline 144 and the hot water pipeline 114 are formed is jointed by the rotary joint 115.
It is preferable that the hot water pipeline 114 is formed at the inside from a side end to the center in the shaft of the rotary drum 110, the feed water pipeline 116 is formed at the inside of the other side end, and the ends of each pipeline are connected by each connection pipe and the rotary joint 115. In the preferred embodiment of the present invention, the hydraulic inversion tank 120, the pressuring and water feeding means 130 and the heating and hardening means 140 are mounted on the direction convertible mounting
means 150 mounted on a vehicle to freely change directions when they are moved or operated.
As shown in FIGS. 5 and 6, the direction convertible mounting means 150 includes the deceleration gear 152 driven by the driving motor 151 fixed on a car body 160, and the mounting stand 155 fixed on the internal swing gear 153 internally contacting with the deceleration gear 152 and mounting the hydraulic inversion tank 120, the pressuring and water feeding means 130 and the heating and hardening means 140. In the drawings, the reference numeral 157 designates a bearing. The mounting stand 155 may rotate in right and left directions, i.e., 180°, by the motor 151 rotating forward and backward.
The hydraulic inversion tank 120 may have an inlet (not shown) for winding the reinforcing tube.
A method for repairing the pipelines without digging according to the present invention, which inverts and introduces the reinforcing tube 2, in which the adhesive resin is impregnated, and hardens the adhesive resin of the reinforcing tube, includes: a preparing step of fixing an end of the hot water hose 141, which has the water outlet 141a at the end connected with the reinforcing tube 2, to communicate with the hot water pipeline 114 formed inside the shaft of the rotary drum 110 rotated by the power unit, winding the hot water hose on the drum, connecting the tow rope 3, which ties the end of the reinforcing tube 2, to the end of the hot water hose 141, winding the tow rope 3 on the rotary drum 110,
* fixing the other end of the reinforcing tube 2 to the flange 122 of the hydraulic inversion tank 120, which receives the rotary drum 110 inside, has the feed water valve and the discharge valve 145 and fixes the end of the reinforcing rube 2, in the inverted state and locating at a position near to a construction area; an inverting and introducing step of inverting the reinforcing tube by applying
n
hydraulic pressure to the reinforcing tube 2 by water fed inside the hydraulic inversion tank through the operation of the pressuring and water feeding means, and contacting the adhesive resin impregnated surface 2b onto an inner wall of the sewage pipe 1 ; an adhesive resin hardening step of discharging hot water heated in the boiler and supplying heat to the innermost side of the construction section through the hot water supply pipeline 144 and the water outlet 141a of the hot water hose 141 by stopping the water feed and operating the heating and hardening means 140, and circulating cooling water returned into the hydraulic inversion tank into the boiler through the discharge valve 145 and the recovery pipeline 146; and a finishing step of stopping the operation of the heating and hardening means 140, such as the discharge valve 145 and the circulation pump 143 linked with the boiler 142, cutting the inner end portion tied on the tow rope 3 of the reinforcing tube 2, and winding again the hot water hose 141 on the rotary drum 110 by operating the driving means (not shown). Hereinafter, the operation of the apparatus 100 for repairing the pipelines without digging according to the present invention will be described.
FIG. 7 illustrates an exemplary view showing a process of repairing the pipelines without digging according to the present invention in order. FIG. 7a shows a state before the inversion, FIG. 7b shows a state during the inversion, and FIG. 7c shows a state after the inversion.
As shown in FIG. 7, after the hot water hose 141 is wound on the rotary drum 110, the reinforcing tube 2 is introduced through the inlet 121 of the reinforcing tube of the tank and wound on the rotary drum 110. When the end of the reinforcing tube is fixed to the flange 122 in the inverted state (FIG. 7a) and a prescribed hydraulic pressure is applied to the inside of the hydraulic inversion tank 120 through the feed water pipeline 116 formed on the shaft, the adhesive resin impregnated surface 2b of the reinforcing tube enters the buried pipe 1 of the
construction section while being inverted and contacted on the inner wall of the buried pipe 1.
While the buried pipe 1 of the reinforcing tube 2 is inserted, also the hot water hose 141 connected with the tow rope 3 fixed at the end of the reinforcing tube 2 is inserted. When the construction section of the reinforcing tube 2 is completely inserted (FIG. 7c), water feed for hydraulic inversion of the reinforcing tube 2 is stopped and the heating and hardening means 140 is operated to enter the adhesive resin hardening step.
That is, water heated in the boiler 142 (to the temperature of about 80 ~ 90 degrees) is discharged through the hot water pipeline 114 of the shaft and the hot water hose 141 and through the hot water outlet 141a, heat is supplied and the adhesive resin is hardened.
At this time, because the end of the hot water hose 141 having the water outlet 141a is connected to the tow rope 3 of a short length connected to an inner end of the reinforcing tube, a location for discharge of hot water is the innermost position of the reinforcing tube 2. Thereby, cooling water being at the inlet of the reinforcing tube 2 is flown into the tank by the hot water flowing out from the inside of the reinforcing tube and returned to the boiler through the discharge valve 145 connected with the circulation pump 143. In the apparatus for repairing the pipelines without digging according to the present invention, the inversion and introduction of the reinforcing tube 2 is easy through the hydraulic inversion tank 12Θ and the pressuring and water feeding means 130, and discharge of hot water by the heating and hardening means 140 for hardening the adhesive resin is carried out at the farthest location of the reinforcing tube, thereby effectively performing supply and circulation of hot water.
Furthermore, because the hydraulic inversion tank 120 is mounted on the
mounting stand, which freely changes the directions, the vehicle mounting the equipments can be located freely without regard to the construction location and direction of the pipeline, thereby making the construction work easy and minimizing the occupation of the road. Because the tower structure, which is a serious problem in the prior arts, is not needed, construction costs for manpower, materials and installation space are considerably reduced and a danger due to the contact with the electric cable mounted on the air is removed.
Because the reinforcing tube is wound on the rotary drum, inserted into the inside of the hydraulic inversion tank and mounted in the direction convertible mounting means added in the vehicle, additional vehicle for conveying the reinforcing tube is not needed and the location and direction of the vehicle can be freely changed.
Industrial-Applicability
As described above, the present invention is a convenient construction apparatus using the hydraulic inversion tank and the pressuring and water feeding means for receiving and supporting the rotary drum, on which the hot water hose and the reinforcing tube are wounded, inside and for inverting and fixing the end of the reinforcing tube to the flange of the inlet of the reinforcing tube. The present invention can easily supply hydraulic pressure required for inverting and inserting a reinforcing tube without regard to a depth and a . length of a construction section, and smoothly harden the adhesive resin through efficient hot water supply and circulation for hardening adhesive resin. Furthermore, the present invention can reduce material cost, manpower cost and duration required for the construction work, be safe from a danger due to the contact with electric wires arranged on the air, and minimize traffic jam
because of reduction of occupied area and duration required for the construction because a tower structure that occurred various problems in the prior arts, is not needed. Moreover, the present invention can make the location of the vehicle free by converting the directions of the components, such as the hydraulic inversion tank. Additionally, the present invention can considerably reduce expenses required for conveying construction materials.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.
Claims
1. An apparatus for repairing pipelines without digging by inverting and inserting a reinforcing tube, in which adhesive resin is impregnated, using hydraulic pressure and by hardening the adhesive resin, the apparatus comprising: a rotary drum, on which the reinforcing tube is wound, disposed on a shaft rotated by a power unit; a hydraulic inversion tank receiving and supporting the rotary drum inside, the hydraulic inversion tank having an inlet of the reinforcing tube having a flange for fixing an end of the reinforcing tube and an inner space forming hydraulic pressure; pressuring and water feeding means having a motor pump for supplying hydraulic pressure into the hydraulic inversion tank; and heating and hardening means for hardening the adhesive resin of the reinforcing tube by supplying hot water to an inlet side end portion of the reinforcing tube.
2. The apparatus according to claim 1, wherein the heating and hardening means includes: a hot water supply pipeline for feeding hot water heated in a boiler into the hydraulic inversion tank; a recovery pipeline having a circulation pump for circulating cooled water of the hydraulic inversion tank to the boiler and a discharge valve; and a hot water hose having an end fixed to the hot water supply pipeline to communicate and the other end connected and fixed to a tow rope of the reinforcing tube, the hot water hose having a water outlet formed at the end connected to the reinforcing tube to discharge hot water from an innermost side of the reinforcing tube, the hot water hose being wound on the drum.
3. The apparatus according to claim 1, wherein the rotary drum shaft has power transmitting means at a side and a hot water pipeline communicating with the boiler hot water supply pipeline in the inside of the side thereof, and wherein an end of the shaft on which the hot water supply pipeline and the hot water pipeline are formed is jointed by a rotary joint.
4. The apparatus according to claim 1, wherein the hot water pipeline is formed at the inside from a side end to the center in the shaft of the rotary drum, the feed water pipeline is formed at the inside of the other side end, and the ends of each pipeline are connected by each connection pipe and the rotary joint.
5. The apparatus according to claim 1, wherein the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means are mounted on direction convertible mounting means, which is installed on a vehicle to freely change directions when they are moved or operated.
6. The apparatus according to claim 5, wherein the direction convertible mounting means includes a deceleration gear driven by a driving motor fixed on a car body, and a mounting stand fixed on the internal swing gear internally contacting with the deceleration gear, the mounting stand for mounting the hydraulic inversion tank, the pressuring and water feeding means and the heating and hardening means.
7. A method for repairing the pipelines without digging, which inverts and introduces a reinforcing tube, in which adhesive resin is impregnated, and hardens the adhesive resin of the reinforcing tube, the method comprising: a preparing step of fixing an end of a hot water hose, which has a water outlet at an end connected with the reinforcing tube, to communicate with a hot water pipeline formed inside a shaft of the rotary drum rotated by a power unit, winding a hot water hose on the rotary drum, connecting a tow rope, which ties an end of the reinforcing tube, to an end of the hot water hose, winding the tow rope on the rotary drum, fixing the other end of the reinforcing tube to a flange of a hydraulic inversion tank, which receives the rotary drum inside, has a feed water valve and a discharge valve and fixes the end of the reinforcing tube, in an inverted state, and locating at a position near to a construction area; an inverting and introducing step of inverting the reinforcing tube by applying hydraulic pressure to the reinforcing tube by water fed inside the hydraulic inversion tank through the operation of the pressuring and water feeding means, and contacting the adhesive resin impregnated surface onto an inner wall of the sewage pipe; an adhesive resin hardening step of discharging hot water heated in the boiler and supplying heat to the innermost side of the construction section through a hot water supply pipeline and an water outlet of the hot water hose by stopping the water feed and operating heating and hardening means, and circulating cooling water returned into a hydraulic inversion tank into a boiler through a discharge valve and a recovery pipeline; and a finishing step of stopping the operation of heating and hardening means, such as the discharge valve and a circulation pump linked with the boiler, cutting the inner end portion tied on the tow rope of the reinforcing tube, and winding again the hot water hose on the rotary drum by operating driving means.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20010024048 | 2001-05-03 | ||
| KR2001/24048 | 2001-05-03 | ||
| KR10-2001-0050557A KR100433060B1 (en) | 2001-05-03 | 2001-08-22 | An Appartus and Methode for Repairing pipelines Without digging |
| KR2001/50557 | 2001-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002090676A1 true WO2002090676A1 (en) | 2002-11-14 |
Family
ID=26639044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2001/001750 WO2002090676A1 (en) | 2001-05-03 | 2001-10-18 | An apparatus and method for repairing pipelines without digging |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1247926C (en) |
| WO (1) | WO2002090676A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075994A3 (en) * | 2010-12-01 | 2012-08-09 | Bernd-Jan Krasowski | Mobile inversion drum |
| CN109538859A (en) * | 2018-12-25 | 2019-03-29 | 长江南京航道工程局 | A kind of pipeline work face converter |
| CN112627525A (en) * | 2020-12-03 | 2021-04-09 | 张皖龙 | Construction method for manufacturing assembled building heat-insulating layer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788222A (en) * | 2012-07-20 | 2012-11-21 | 河南中拓石油工程技术股份有限公司 | Old pipeline repairing process |
| CN104694140A (en) * | 2015-03-12 | 2015-06-10 | 攀钢集团西昌钢钒有限公司 | Ring wrapping leakage treatment method of coke oven bridge pipe |
| KR101710872B1 (en) * | 2016-07-08 | 2017-02-28 | 주식회사 에스씨플러스 | Pipe Lining Structure and Method of Building the Same |
| US10302238B2 (en) * | 2017-04-08 | 2019-05-28 | Innotia Eesti Oü | Lining drum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01235740A (en) * | 1988-03-14 | 1989-09-20 | Hakko Co Ltd | Repairing of inner surface of existing pipe |
| JPH11256668A (en) * | 1998-03-09 | 1999-09-21 | Tamu Tec:Kk | Method for internal lining of sewer |
| KR200193162Y1 (en) * | 2000-03-13 | 2000-08-16 | 김유성 | Apparatus for inverting impregnated tube in pipe with pressurized liquid |
-
2001
- 2001-10-18 CN CN 01823206 patent/CN1247926C/en not_active Expired - Fee Related
- 2001-10-18 WO PCT/KR2001/001750 patent/WO2002090676A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01235740A (en) * | 1988-03-14 | 1989-09-20 | Hakko Co Ltd | Repairing of inner surface of existing pipe |
| JPH11256668A (en) * | 1998-03-09 | 1999-09-21 | Tamu Tec:Kk | Method for internal lining of sewer |
| KR200193162Y1 (en) * | 2000-03-13 | 2000-08-16 | 김유성 | Apparatus for inverting impregnated tube in pipe with pressurized liquid |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075994A3 (en) * | 2010-12-01 | 2012-08-09 | Bernd-Jan Krasowski | Mobile inversion drum |
| CN109538859A (en) * | 2018-12-25 | 2019-03-29 | 长江南京航道工程局 | A kind of pipeline work face converter |
| CN112627525A (en) * | 2020-12-03 | 2021-04-09 | 张皖龙 | Construction method for manufacturing assembled building heat-insulating layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1505723A (en) | 2004-06-16 |
| CN1247926C (en) | 2006-03-29 |
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