KR100730652B1 - The method and apparatus of no digging fine partial repair for maintenance of air pressure - Google Patents

Abstract

The method and an apparatus of no digging fine partial repair for maintenance of air pressure are provided to minimize man power in site and to achieve optimal result without additional management. An apparatus of no digging fine partial repair for maintenance of air pressure maintains pneumatic pressure of the no digging fine partial repair to easily repair damaged part in the state of laying underground. The apparatus includes a compressed air tank(4) to supplement decreased pneumatic pressure when pressure of air injected into a packer is decreased, a pressure gauge connected to the compressed air tank to measure pneumatic pressure of the compressed air tank, a pressure regulator to check the pneumatic pressure of the packer using the pressure gauge and to regulate pneumatic pressure of the compressed air to be supplied to the packer up to a predetermined pneumatic pressure when the pneumatic pressure of the packer is decreased under the predetermined pneumatic pressure, a coupler connected to an air hose to supply the compressed air to the packer.

Description

The Method and Apparatus of No Digging Fine Partial Repair for Maintenance of Air Pressure

1A is a conceptual diagram illustrating a conventional general procedure.

Figure 1b is a conceptual diagram showing the structure of the air pressure maintaining method according to the present invention.

2 is a block diagram showing the operating state of the present invention step by step.

Figure 3a is a perspective view showing a state in which the pressure regulator of the present invention coupled to the manhole.

Figure 3b is an exploded perspective view showing a state before coupling of the pressure regulator according to the present invention.

※ Explanation of code about main part of drawing ※

1: Compressor 2: Operation Control Panel

3: packer 4: compressed air tank

5: manhole 6: through groove

7: fixed support 8: fixed wire

9: Locking device 10: Coupler

11: air hose 12: pipeline

13: Air Regulator 14: Pressure Gauge

15: fastening portion 16: fixing strap

17: Lower Tie Knot 18: Upper Tie Knot

19: Fastening bolt (pin) 20: Folding part

21: fastener

The present invention relates to a non-excavation precision partial repair method of the pipeline and its apparatus, and more specifically, to the partial breakage or leakage caused by cracks, cracks and steps in the sewer pipe or water pipe buried underground, Preliminary survey-Dredging and CCTV survey-Cutter work-High pressure cleaning (dredging)-Preparation of repair materials-Installation of repair equipment-The construction stage of the partial repair method to easily repair only the damaged parts in the state buried underground without digging Pneumatic device to the damaged area-Compressed air injection to pneumatic device through pneumatic device-Hardening-Pneumatic removal-Pneumatic device and pneumatic device are separated after air injection into pneumatic device through pneumatic device. In this case, a certain pressure must be maintained in the water retainer until the time of hardening is completed. The air pressure decreases over time due to the negative environmental variables.In order to improve this, the pressure regulator is installed on the bottom of the manhole and connected to the water condenser, so that the pressure of the water conservator requiring a certain pressure is fixed. The present invention relates to a pneumatic maintenance method and a device for non-excavation precision partial repair that can be maintained easily.

In general, underground pipelines cause cracks, breakage, or stepped joints due to aging of the pipeline itself, subsidence of the underground ground or fluctuations in earth pressure from the ground, and the wastewater inside the pipeline flows out through the broken portion. To contaminate the soil.

Therefore, the construction methods for repairing underground pipelines include excavation construction methods to excavate and repair the ground, and non-excavation construction methods to repair through manholes without excavating the ground. As it takes a long time, it is not possible to immediately deal with environmental pollution caused by sewage leakage, and it is necessary to excavate the surroundings for construction, so the aesthetic damage of the surrounding environment and the settlement of roads due to soil erosion after construction, especially transportation Construction in congested areas does not use well because there are problems such as chronic traffic jams.

Therefore, in recent years, the repair method of non-excavated pipelines that can only repair the damaged parts of the pipelines is mainly used, and in general, unmanned repair equipment for the repair of breakage, cracks, cracks, and stepped parts of the sewer pipes is used. Wrap the non-woven fabric on the outer circumferential surface of the rubber tube secured to the wire and fix it so that it does not loosen with a wire or band, place the repair device between the manhole and the manhole, pull the wire, check the damaged part by the camera, and inject air into the rubber tube to inflate the expansion force of the rubber tube. By cutting the wires, the repair member is fixed to the inner surface of the sewage pipe to fix the leak.

However, in the conventional maintenance device, the air pressure generated through the compressor located on the ground is transmitted to the packer located in the pipeline, which is usually buried underground, through an air hose connected by a plurality of extension lines by a coupler or the like, and the packer outer circumferential surface The rubber tube surrounding the tube expands to perform partial repair work on the part requiring work, and at this time, the expansion pressure should be kept constant, and the repair work takes a long time in consideration of the hardening of the repair material. For reasons of obstacle removal, the compressor is separated after supplying a constant air pressure to the packer.

However, after the compressor is separated, the compressed air in the sealed packer gradually decreases with time, which degrades the adhesion of the repairing material requiring close contact with the inner wall of the pipe, and thus, satisfactory repair work cannot be performed. .

In addition, in order to improve this, mounting the compressor and the operation check panel until the completion of the hardening process of the repair material, and the operator checking it every certain time is not a realistic alternative in terms of cost or efficiency of maintenance. Fundamentally, considering the environmental variables on the ground, there is a problem that requires a separate management of traffic obstacles and equipment.

Therefore, an object of the present invention for solving the above problems, provided with an auxiliary tank and a pressure regulator and to be mounted on the bottom of the manhole rather than the ground, it is connected to the packer, and the existing during the curing process of the repair material After tightening with an air hose, etc., it can be mounted on the bottom of the manhole, allowing maintenance of the ground working environment, maintaining a constant air pressure in the packer without the need for a separate maintenance worker, and conveniently after completion of the curing process. It is an object of the present invention to provide a pneumatic pressure maintaining device of non-excavation precision partial repair that allows the rapid progress to the next process.

In addition, the repair method prevents the applied hardener from flowing down to both sides or evenly adhered to the entire repair member when the packer expands inside the pipeline by air pressure, and prevents the adhesive from being evenly applied to the entire repair member. Its purpose is to provide a pneumatic maintenance method for non-excavation precision partial repair that minimizes manpower and enables optimal results to be obtained without separate management, thereby reducing processing time and increasing construction efficiency for the same or multiple tasks. will be.

In order to achieve the above object, the present invention, the compressor installed on the ground, the air hose for the delivery of the air generated in the compressor, the coupler for connecting between each air hose, and is damaged by being connected by the coupler In order to repair the inside of the pipeline in a non-excavated manner, a packer inserted into the pipeline through a manhole and a moving means for towing the packer are damaged and leaked due to expansion by the air pressure of the packer repair apparatus. It is applied to the step of maintaining the expansion air pressure of the packer repair device for a certain time so that the repair material is tightly adhered to the part.

The present invention is a non-excavation precision part maintenance device for easily repairing a broken part in a state buried underground without digging a pipeline, and when the air pressure injected into the packer 3 decreases, A compressed air tank 4 for supplementing air pressure; A pressure gauge 14 connected to the compressed air tank 4 for measuring the air pressure of the compressed air tank 4; Check the air pressure in the packer (3) by the pressure gauge 14, and when the pressure falls below a predetermined air pressure, the pressure regulator for adjusting the compressed air supplied to the packer (3) up to the set air pressure for supplying additional compressed air ( 13); A coupler 10 connected to an air hose 11 for supplying the compressed air to the packer 3; A fastening part 15 formed on an upper portion of the compressed air tank 4; A plurality of fixing straps 16 which adhere the fastening portions 15 from both sides; Is formed on the upper part of the plurality of fixing straps 16 attached to the fastening portion 15, the upper fixing to serve as a stopper so that the fixing strap 16 penetrated through the through groove 6 of the manhole 5 is not separated Knot 18; A lower fixing knot (17) for adjusting to a thickness of the manhole (5) to the lower end of the upper fixing knot (18); Respective fastening holes 21 formed at ends of the plurality of fixing strings 16; Length adjustable fixing wires (8) connected to the respective fastening holes (21); And lock device (9) for fixing by locking both ends of the fixing wire (8) on both sides; It can achieve with the structure containing.

In addition, another object of the present invention, preliminary survey-dredging and CCTV survey-cutter work-high pressure cleaning (drilling)-repair material preparation-repairer mounting-towing the repairer to the damage site-injection of compressed air into the repairer through the pneumatic device- As a pneumatic maintenance method of conventional non-excavation precision partial repair consisting of curing-repairing device removal-in-vitro inspection and reporting; The step of curing after the air injection into the water holding device through the pneumatic device; An air hose separating step of separating the air hose from the compressor; A compressed air tank attaching step of attaching the compressed air tank to the bottom of the manhole; Coupler connection step for connecting the air hose and the coupler connected to the packer; Compressed air tank operating step for operating the compressed air tank to replenish the air pressure; A pressure sensing and checking step of detecting whether the air pressure detected by the pressure gauge has reached a prescribed pressure and confirming this; A compressed air tank opening step of opening the compressed air tank when detecting that the sensed air pressure is lower than a prescribed pressure; A compressed air inflow step of introducing the opened compressed air into a packer; A regulated pressure control step of adjusting the air pressure in the pressure regulator until the air pressure detected by the pressure gauge reaches a prescribed pressure; And when the air pressure detected by the pressure gauge reaches a specified pressure, blocking step for blocking the additional supply of air pressure by blocking the compressed air tank; It can be achieved by providing.

It is also an object of the present invention, as an air pressure maintaining device of non-excavation precision partial repair for easily repairing a damaged part in a state buried underground without digging a pipeline, the air pressure injected into the packer 3 can be reduced. A compressed air tank 4 for supplementing the reduced air pressure; A pressure gauge 14 connected to the compressed air tank 4 for measuring the air pressure of the compressed air tank 4; Check the air pressure in the packer (3) by the pressure gauge 14, and when the pressure falls below a predetermined air pressure, the pressure regulator for adjusting the compressed air supplied to the packer (3) up to the set air pressure for supplying additional compressed air ( 13); A coupler 10 connected to an air hose 11 for supplying the compressed air to the packer 3; A fastening part 15 formed on an upper portion of the compressed air tank 4; A plurality of fixing supports (7) made of a metal material fixed by fastening bolts (19) to adhere the fastening portions (15) from both sides; Forming a folding portion (20) having a structure that is bent along the shape of the manhole (5) in the fixed support (7); Fastening holes 21 are formed at each end of the folding portion 20; Length adjustable fixing wires (8) connected to the respective fastening holes (21); And lock device (9) for fixing by locking both ends of the fixing wire (8) on both sides; It can be achieved by including a configuration.
(Example)

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1a is a conceptual diagram showing a conventional general procedure, the non-excavation part repair method of the general sewer pipe is pre-inspection-dredging and CCTV investigation-cutter work-high pressure cleaning (dredging)-repair material preparation-repairer installation-to the damaged site Traction of traction machine-Compression of compressed air into pneumatic device through pneumatic device-Hardening-Removal of water repair machine-In-vitro inspection and report preparation.The above curing step places repair device such as packer in the repair part. Air is injected into the repair device through the compressor (1) and the operation control panel (2). The air is injected to have a constant air pressure according to the diameter of the conduit, and the repair material is confined by the repair device inflated by the injected air pressure. It consists of a process of hardening on the inner wall of the.

However, in this case, it usually takes 2 to 3 hours of hardening time, so it separates the compressor (1) and the operation check panel (2) connected to the ground from a repair device such as a packer. After closing (5), move to the next work place or wait.

Figure 1b is a conceptual diagram showing the structure of the air pressure maintaining method according to the present invention, the repair device packer (3) filled with compressed air, as is well known in Figure 1a is configured to have airtightness so that air pressure does not leak Naturally, as the actual time passes, the air pressure does not maintain the initial value and gradually decreases. As a result, the repair material that needs to be closely adhered to the outer wall of the conduit falls off due to the decrease in the air pressure. It often occurs and requires rework.

Since this causes a waste of a long curing time, the present invention prevents such a problem, and the compressor 1 and the operation confirmation panel 2 (in some cases, which can be omitted) installed on the ground continuously during the curing completion time. This is to overcome the problem of leakage of compressed air without connecting to the packer (3) and without requiring a constant check by the technician.

That is, by having a compressed air tank (4) that can be mounted on the bottom of the manhole and connecting it with the packer (3), it is recognized according to the age or damage of the packer (3) or the air pressure decreases over time, and replenished immediately if necessary This is to maintain a constant air pressure is always made to be characterized in that the repair material adjacent to the inner wall of the conduit 12 can be in close contact with the inner wall tightly.

The operating embodiment of the compressed air tank 4 is as shown in the block diagram of FIG.

Figure 2 is a block diagram showing the operating state of the present invention step by step, Figures 3a, 3b is a perspective view showing a combined state of the pressure regulator and the manhole of the present invention, the non-excavation partial repair method of a conventional pipeline is pre-irradiated -Dredging and CCTV investigation-Cutter work-High pressure cleaning (Dreditation)-Repair material preparation-Repairer installation-Traction machine towing to the damaged part-Inflation of air to the machine through pneumatic device-Hardening-Removal of the maintenance machine-In-house inspection and report preparation In the above process, in the process of curing after injecting air into the water condenser, the air hose 11 connected to the packer 3 is separated from the compressor 1 installed on the ground and compressed to the bottom of the manhole 5. Attach the air tank (4).

In the attachment of the compressed air tank (4), the fastening portion (16) is fastened to the fastening portion (15) formed on both sides of the upper portion of the compressed air tank (4) and fastened by a knot through the fastening portion (15), After passing the fixing strap 16 attached to the fastening part 15 through the through groove 6 of the manhole 5, the fixing strap 16 is again penetrated by the load of the compressed air tank 4. The upper fixed knot 18 is made to act as a stopper so as not to flow into the (6), and the compressed air tank 4 is attached to the bottom of the manhole 5.

Before the upper fixing knot 18 is fixed and the compressed air tank 4 is fixed, the lower fixing knot 17 is formed at the lower side than the upper fixing knot 18 in consideration of the thickness of the manhole 5. After pulling out the hardening work by the packer 3, the manhole 5 is lifted by the lower fixing knot 17 by pulling the fixing string 16 protruding from the ground when the manhole 5 is opened. It is intended to be built, and thus there is a feature that can be easily opened without a manhole (5) without a separate equipment.

In addition, the fastening hole 21 is provided on both sides of the fixing strap 16, and the fastening hole 21 is made of a coupling ring of a climbing rope to combine the fixing wire 8 to the fastening hole 21, The combined fixing wire 8 may be provided in a chain form, and the two fixing wires 8 may be pulled together and tightened tightly across the manhole 5, and then the device may be a hole formed in the fixing wire 8. (9) has a form of fastening to complete the fixing.

The compressed air tank 4 fixed to the bottom of the manhole 5 is connected to the ball symbol 11 connected to the packer 3, and is provided by the pressure regulator 13 mounted on the compressed air tank 4. The air pressure maintaining step is to operate.

The compressed air tank 4 connected to the packer 3 by the air hose 11 checks whether the air pressure from the packer 3 through the coupler 10 is within the set pressure value range as determined by the pressure gauge 14. When the pneumatic pressure of the packer 3 drops to a low pressure below the set value, the compressed air tank 4 is opened by the pressure gauge 14 and the pressure regulator 13 to supply the compressed air to the packer 3.

The air flowing through the coupler 10 is sensed by the pressure gauge 14 and the pressure regulator 13 to reach the prescribed pressure, and when the pressure reaches the prescribed value, the supply of air from the compressed air tank 4 is cut off. It is characterized in that the return to the initial stage to maintain the compressed air.

As described above, the pneumatic maintenance method of the non-excavation precision partial repair according to the present invention includes a compressed air tank and a pressure regulator and can be mounted on the bottom of the manhole rather than on the ground, so that the air pressure of the packer can be kept constant. After completing the hardening process, it is easy to proceed to the next process easily, and prevents the deterioration of work performance of repairing materials due to lack of air pressure, minimizes the professional technical manpower at construction sites, and derives optimal results without separate management. It is possible to shorten the processing time and increase the construction efficiency according to the same plural work.

In addition, it is provided with a stopper for preventing theft, loss and damage of the repair equipment, there is an effect that can increase the work efficiency from the waste of manpower by resident separate workers or managers.

The present invention is not limited to the above-described embodiments, and various changes can be made by those skilled in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the following claims. It will be said that there is a technical idea of the present invention.

Claims (3)

In the pneumatic pressure maintenance device of the non-excavation precision partial repair to easily repair the broken parts in the state buried underground without excavating the pipeline, A compressed air tank 4 for replenishing the reduced air pressure when the air pressure injected into the packer 3 decreases; A pressure gauge 14 connected to the compressed air tank 4 for measuring the air pressure of the compressed air tank 4; Check the air pressure in the packer (3) by the pressure gauge 14, and when the pressure falls below a predetermined air pressure, the pressure regulator for adjusting the compressed air supplied to the packer (3) up to the set air pressure for supplying additional compressed air ( 13); A coupler 10 connected to an air hose 11 for supplying the compressed air to the packer 3; A fastening part 15 formed on an upper portion of the compressed air tank 4; A plurality of fixing straps 16 which adhere the fastening portions 15 from both sides; Is formed on the upper part of the plurality of fixing straps 16 attached to the fastening portion 15, the upper fixing to serve as a stopper so that the fixing strap 16 penetrated through the through groove 6 of the manhole 5 is not separated Knot 18; A lower fixing knot (17) for adjusting to a thickness of the manhole (5) to the lower end of the upper fixing knot (18); Respective fastening holes 21 formed at ends of the plurality of fixing strings 16; Length adjustable fixing wires (8) connected to the respective fastening holes (21); And Locking device (9) for fixing by locking both ends of the fixing wire (8) on both sides; Air pressure maintenance device of the non-excavation precision partial repair, characterized in that comprising a. Preliminary survey-Dredging and CCTV survey-Cutter work-High pressure cleaning (Drilling)-Repair material preparation-Repairer installation-Traction machine traction to the damaged part-Compressed air injection into the machine through pneumatic device-Hardening-Removal of the maintenance machine-In-house inspection and In the pneumatic maintenance method of the normal non-excavation precision partial repair which consists of report making; The step of curing after the air injection into the water holding device through the pneumatic device; An air hose separating step of separating the air hose from the compressor; A compressed air tank attaching step of attaching the compressed air tank to the bottom of the manhole; Coupler connection step for connecting the air hose and the coupler connected to the packer; Compressed air tank operating step for operating the compressed air tank to replenish the air pressure; A pressure sensing and checking step of detecting whether the air pressure detected by the pressure gauge has reached a prescribed pressure and confirming this; A compressed air tank opening step of opening the compressed air tank when detecting that the sensed air pressure is lower than a prescribed pressure; A compressed air inflow step of introducing the opened compressed air into a packer; A regulated pressure control step of adjusting the air pressure in the pressure regulator until the air pressure detected by the pressure gauge reaches a prescribed pressure; And When the air pressure detected by the pressure gauge reaches a specified pressure, the blocking step of blocking the additional supply of air pressure by blocking the compressed air tank; A pneumatic maintenance method for non-excavation precision partial repair, characterized in that it comprises a. In the pneumatic pressure maintenance device of the non-excavation precision partial repair to easily repair the broken parts in the state buried underground without excavating the pipeline, A compressed air tank 4 for replenishing the reduced air pressure when the air pressure injected into the packer 3 decreases; A pressure gauge 14 connected to the compressed air tank 4 for measuring the air pressure of the compressed air tank 4; Check the air pressure in the packer (3) by the pressure gauge 14, and when the pressure falls below a predetermined air pressure, the pressure regulator for adjusting the compressed air supplied to the packer (3) up to the set air pressure for supplying additional compressed air ( 13); A coupler 10 connected to an air hose 11 for supplying the compressed air to the packer 3; A fastening part 15 formed on an upper portion of the compressed air tank 4; A plurality of fixing supports (7) made of a metal material fixed by fastening bolts (19) to adhere the fastening portions (15) from both sides; Forming a folding portion (20) having a structure that is bent along the shape of the manhole (5) in the fixed support (7); Fastening holes 21 are formed at each end of the folding portion 20; Length adjustable fixing wires (8) connected to the respective fastening holes (21); And Locking device (9) for fixing by locking both ends of the fixing wire (8) on both sides; Air pressure maintenance device of the non-excavation precision partial repair, characterized in that comprising a.

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