KR100682340B1 - Leaking inspection method of manhole and equipped inspection thereof - Google Patents

Abstract

A method of inspecting water leakage of a manhole and an inspection equipment of operating the inspection are provided to easily install the inspecting equipment and improve the water-leaked position record efficiency by placing the remoter zoom adjusting camera. An inspection equipment for inspecting water leakage of a manhole is composed of a pipe sealing unit mounted with first and second air injection-type packers(110a,110b); an inspecting solution; a manhole sealing unit having a third packer; a suction unit mounted in the third packer to have a vacuum fan; and a viewing unit containing a camera, an outer monitor, and a controller. The first, second, and third packers are placed at the inlet and outlet of the pipe line, and the opened mounting part of the manhole, and contains cylindrical wheel frames(112a,112b) and air injection-type expansion members(114a,114b).

Description

Leaking inspection method of manhole and equipped inspection

1 is a view briefly showing a leak test method and inspection equipment of the manhole according to the present invention,

2 is a view showing in detail the pipeline sealing member shown in FIG.

3 is a view showing in detail the manhole sealing member shown in FIG.

4 is a view briefly showing the state of use of the leak test method and inspection equipment of the manhole according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: manhole 11a, 11b: pipeline

110a, 110b, 130: Packer 112a, 112b, 132: Wheel frame

114a, 114b, 134: expansion member 116a, 116b, 136: air inlet

118: connector 140: vacuum fan

150: camera 152: monitor

160: light 170: generator

180: compressor

The present invention relates to a method and an inspection apparatus for inspecting a leak of a manhole.

In general, underground manholes and pipelines, such as concrete fume pipes, PVC resin pipes, and conduits, are used for cracking, breakage, or separation of connections due to aging of the pipe itself, subsidence of underground soil, or changes in earth pressure from the ground. Defects occur. Therefore, the wastewater inside the pipeline through the defects to the outside to contaminate the soil, or foreign matter outside the pipeline penetrates inside to contaminate the water supply.

As described above, various methods and equipment for inspecting leaks of underground manholes have been disclosed. Among them, the most frequently used leak test is to seal the inlet and outlet of the pipes through both sides of the lower part of the manhole with a sealing member, and then close the upper part of the manhole with the sealing member, and then fill the water inside the manhole. The test tube is connected to the test tube and checks whether the level of the test tube changes for a certain time to determine whether the leak.

However, the watertight test as described above had some problems.

First, it is possible to know whether or not leaking through the level of the test tube, but because it is not known exactly which part is leaked, there was a waste to repair all the wide range during the renovation work.

Second, because the water used for water-tightness was re-flowed, it was a waste of water, considering that it was a water shortage country.

Third, because the water flowing in the pipeline should be blocked before conducting the watertight test, there was also a problem that a lot of water is collected in the upper side of the test site and sometimes flows back.

Fourth, since the sealing members blocking both sides in the manhole are installed separately, there is also a problem that the sealing member is separated from the tube when high pressure is applied.

The present invention has been made to solve the above problems, the object of the present invention is to apply the test liquid to the wall surface of the manhole, and to form a vacuum in the manhole while creating a bubble in the test liquid remote zoom camera The present invention provides a manhole leak inspection method and inspection equipment that can be observed and recorded by means of a leak.

The present invention to achieve the above object,

After sealing the inlet side and the outlet side of the pipeline passing through the manhole, apply test liquid such as coating material or soap foam to the wall surface of the manhole, seal the open top of the manhole, and then use the vacuum fan to The present invention provides a method for inspecting a leak of a manhole, which comprises observing and recording whether bubbles are generated in a test liquid applied while inhaling through a remote zoom control camera.

Or the present invention,

A pipeline sealing means having an air injection type first packer and a second packer sealing the inlet and outlet sides of the conduit passing through the manhole;

Inspection liquids such as coating materials and soap bubbles applied to the wall surface of the manhole;

A manhole sealing means having an air-filled third packer for sealing an open top of the manhole;

Suction means mounted in a third packer and having a vacuum fan for sucking air in the manhole to the outside;

It provides a manhole leak inspection equipment comprising a camera mounted rotatably on the lower surface of the third packer, an external monitor connected to the camera, and a controller for remotely zooming the camera.

Here, it is preferable that a connection pipe having a hollow inside is mounted between the first packer and the second packer to communicate the inlet side and the outlet side of the conduit.

And, the lower portion of the third packer may further include a lighting means is installed to illuminate the shooting direction of the camera.

Hereinafter, with reference to the accompanying drawings will be described with respect to the leak test method of the manhole according to an embodiment of the present invention and the inspection equipment to perform the same.

1 is a view schematically showing a leak test method and inspection equipment of the manhole according to the present invention, Figure 2 is a view showing in detail the pipeline sealing member shown in Figure 1, and Figure 3 is a manhole shown in Figure 1 The figure which showed the sealing member in detail.

First, the leak test method of the manhole according to the present invention is to seal the both sides of the manhole in the manhole, apply a test liquid, such as coating material or soap bubbles on the wall surface of the manhole, and then seal the upper part of the manhole, using a vacuum fan The inside of the body is suctioned at a high pressure and bubbles are formed in the test solution.

The inspection equipment for performing the leak inspection method of the manhole is a pipe sealing means for sealing both the conduits (11a, 11b) in the manhole 10, as shown in Figure 1 is applied to the inner wall surface of the manhole (10) Inspection liquid, manhole sealing means for sealing the open upper part of the manhole 10, suction means for sucking air in the manhole 10 to the outside, observation means for checking the change of the inspection liquid, manhole (10) Include lighting means to shine the inside.

First, the pipeline sealing means is sealed by inflation by inflation with air as a means for blocking the inlet 11a and the outlet 11b of the pipeline communicating with the manhole 10. The pipeline sealing means is the first packer 110a and the second packer 110b in pairs to block the inlet (11a) and the outlet (11b) of the pipeline, the first packer 110a and the second packer (110b). The coupling pipe 118 that communicates between each other is coupled.

As shown in FIG. 2, the first packer 110a and the second packer 110b are wrapped on the outer circumferential surfaces of the cylindrical wheel frames 112a and 112b having the same shape and the wheel frames 112a and 112b. It is made of an expansion member (114a, 114b) of the rubber material to be expanded, and the air inlet (116a, 116b) is formed in the expansion member (114a, 114b) to inject air.

The connection pipe 118 has a hollow hollow tubular shape, one end of which is coupled to the wheel frame 112a of the first packer 110a and the other end of which is coupled to the wheel frame 112b of the second packer 110b.

That is, the pipeline sealing means blocks the inlet 11a and the outlet 11b of the pipeline leading to the manhole 10 by the first packer 110a and the second packer 110b, and at the same time, The incoming water does not block and flows smoothly through the connector (118). In addition, the first packer 110a and the second packer 110b may be provided with convenience when installing a plurality of wheels 120a and 120b.

The test liquid is a liquid having high viscosity as a bubble which can be generated when air flows through a gap A formed on the wall surface of the manhole 10. Preferably, in the present invention, a lather or a coating liquid is used.

As shown in FIG. 3, the manhole sealing means is provided with an air-filled third packer 130 in a shape similar to the packers 110a and 110b used in the pipeline sealing means. Like the first packer 110a and the second packer 110b, the third packer 130 is a rubber material that is expanded while being wrapped on a cylindrical wheel frame 132 having a hollow inside and an outer circumferential surface of the wheel frame 132. The expansion member 134 is made of. In addition, the air inlet 136 through which the air is injected is formed in the expansion member 134.

Here, the first packer 110a, the second packer 110b, and the third packer 130 are connected to a compressor 180 separately provided outside to receive compressed air.

The manhole sealing means as described above is provided with suction means, observation means, and lighting means.

The suction means is mounted inside the wheel frame 132 of the third packer 130 and is a vacuum fan 140 that sucks the internal air to the outside. The vacuum fan 140 is operated using a generator 170 provided separately from the outside, the suction pressure of the vacuum fan 140 has about 5Kg / cm ² .

Observation means includes a camera 150 capable of capturing an internal state, a monitor 152 capable of viewing an image captured by the camera 150 from outside, and a controller capable of controlling the movement of the camera 150. Is not made). At this time, the camera 150 is pivotally mounted on the lower surface of the third packer 130, and a power supply line and a control cable 154 connected to the camera 150 are wheel frames 132 of the third packer 130. It extends through the outside. The cable 154 is connected to the controller and the monitor 152.

The lighting means serves to illuminate the inside of the manhole 10 blocked by the pipeline sealing means and the manhole sealing means, and serves to smoothly capture the camera 150. The luminaire has a lamp 160 on the lower surface of the third packer 130, the lamp 160 is connected to the external generator 170. Preferably, the lighting means may be mounted to the camera 150 to shine in the same direction in accordance with the operation of the camera 150.

The following briefly describes the state of use of the leak test equipment of the manhole formed as described above.

4 is a view briefly showing the state of use of the leak test method and inspection equipment of the manhole according to the present invention.

First, the two pipelines 11a and 11b in the manhole 10 are blocked by the pipeline sealing means. At this time, the first packer 110a blocks the inlet 11a of the conduit and the second packer 110b blocks the outlet 11b of the conduit. Or it may be mounted on the contrary. At this time, the entrance of the long pipeline sealing means is facilitated by the wheels 120 mounted on the first packer 110a and the second packer 110b. When installation of the pipeline sealing means is completed, the compressed air is supplied to the expansion members 114a and 114b of the first packer 110a and the second packer 110b using the external compressor 180 to seal the pipelines 11a and 11b. Let's do it. Although compressed air may be supplied to the first packer 110a and the second packer 110b at the same time, sometimes compressed air is first supplied to the first packer 110a in order to prevent water from filling in the manhole 10. By blocking the inlet (11a) side of the conduit, and flowing the water in the manhole (10) to the outlet (11b) side may be sealed by supplying compressed air to the second packer (110b). When the pipeline sealing means is installed, there is no water in the manhole 10, but the water in the pipelines 11a and 11b can flow smoothly through the connecting pipe 118, and the first packer 110a and the second packer 110b allows the connector 118 to act as a crutch to allow for a robust installation.

Next, the test liquid is applied to the wall surface of the manhole 10.

Next, the manhole sealing means is inserted into the open upper part of the manhole 10. Since the seating part 12 in which the manhole cover (not shown) is conventionally formed is formed in the open upper part of the manhole 10, the third packer 130 is seated therein. That is, the third packer 130 of the present invention will have to meet the standard so that it can be fitted to the open seating portion 12 of the manhole (10). The compressed air is supplied to the seated third packer 130 using the compressor 180 to inflate and expand the expansion member 135.

Next, the generator 170 is operated to drive the suction means. That is, the vacuum fan 140 is operated to suck out all the air in the manhole 10 to the outside. At the same time, the lamp 160 is operated to illuminate the inside of the manhole 10, and the camera 150 is rotated back and forth using the controller to monitor the air bubbles in the gap A formed in the wall surface of the manhole 10 by monitoring. Observe that this occurs.

And the equipment (monitor, controller, compressor, generator, etc.) used in the present invention can be mounted on the vehicle 190 to facilitate movement and use.

As described above, the manhole leak inspection method according to the present invention and the inspection equipment for performing the same by evacuating the inside of the manhole and observe whether or not bubbles are generated in the test liquid applied to the manhole wall through the remote zoom control camera As it can be, it is easy to install the inspection method and equipment, there is an advantage to perform the easy inspection, there is an advantage that can be conveniently used for repair work can be observed and recorded the leak location accurately.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims You will understand.

Claims (5)

After sealing the inlet side and the outlet side of the pipe passing through the manhole, apply a test liquid, such as coating material or soap bubbles to the wall surface of the manhole, and seal the open upper part of the manhole, and then using a vacuum fan A method of inspecting leaks in a manhole, characterized by observing and recording whether bubbles are generated in the test liquid applied while inhaling air in the manhole through a remote zoom control camera. Pipe line sealing means having an air injection type first packer (110a) and the second packer (110b) for sealing the inlet (11a) side and the outlet (11b) side of the pipe passing through the manhole (10); An inspection liquid such as a coating material or a lather applied to the wall surface of the manhole 10; Manhole sealing means having an air injection-type third packer (130) for sealing the open upper portion of the manhole (10); Suction means having a vacuum fan (140) mounted in the third packer (130) to suck air in the manhole (10) to the outside; A camera 150 rotatably mounted on the lower surface of the third packer 130, an external monitor 152 connected to the camera 150, and a controller for remote zooming the camera 150. Manhole leak test equipment, characterized in that it comprises an observation means. The first packer (110a), the second packer (110b) and the third packer (130) is the inlet (11a) side of the conduit, the outlet (11b) side and the manhole (10) of claim 2 Arranged in the open seating portion 12, each of the air-inflatable expansion member (114a, 114b, 134) fitted to the cylindrical wheel frame (112a, 112b, 132) and the outer peripheral surface of the wheel frame (112a, 112b, 132) Manhole leak inspection equipment, characterized in that consisting of. According to claim 3, Between the first packer (110a) and the second packer (110b) is a connecting pipe 118 having a hollow inside is mounted on the inlet (11a) side and outlet (11b) side of the pipe line Manhole leak test equipment, characterized in that the communication. According to claim 2, The lower portion of the third packer (130) Manhole leakage inspection equipment further comprises a lighting means is provided with a light (160) is installed to illuminate the shooting direction of the camera (150).

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