JP2534853Y2 - Equipment for inserting inspection equipment into gas conduits - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inserting various inspection instruments into a pipe such as a gas pipe.

[0002]

2. Description of the Related Art At present, a part of a gas conduit is pierced to inspect a corrosion state of a gas conduit or a situation of water intrusion, and an inspection device is inserted into the gas conduit through this hole. Is being done. When such an inspection method is employed, it is necessary to prevent gas from leaking from the perforated hole in order to perform an inspection with the gas flowing in the gas conduit.

FIG. 3 shows an apparatus for inserting an inspection device in a leak-free manner, wherein 1 is an attachment (split sleeve) for a gas conduit A, 2 is a pedestal mounted on the attachment 1, 3 is a shutter device mounted on the pedestal 2, 4 is an adapter with an air purge cock 14 mounted on the shutter device 3, 5 is a disk plate receiving base mounted on the adapter 4, 6 is this disk A disk plate 7 mounted on the plate 5 is an insertion pipe which can be inserted into the gas conduit A via the adapter 4, the shutter device 3, the pedestal 2, and the attachment 1 via the disk plate 6, and 8 A cable seal unit attached to the upper end entrance of the insertion pipe 7, comprising: In drilling, installation of equipment, the insertion of the testing equipment, and performs occlusion of drilled holes.

[0004] 1. First, the attachment (split sleeve) 1, the pedestal 2, and the shutter device 3 are attached to the gas conduit A at a location where a test device is to be inserted for insertion.

[0005] 2. An automatic feeder (not shown) with a forsaw is mounted thereon, and an electric drill (not shown) is further mounted thereon, the shutter device 3 is opened, and the gas conduit A is opened with no blow (no leakage). Perforate.

[0006] 3. When the drilling is completed, the electric drill is removed, the fork of the automatic feeder is lifted up, the shutter device 3 is closed, and then the automatic feeder with the forsaw is removed.

[0007] 4. Adapter 4 on shutter device 3
Attach the disk plate holder 5 of the adapter 4
Then, a chip removing adapter is attached (not shown), the shutter device 3 is opened, and after purging, the chip removing adapter is pushed down into the gas conduit A to remove perforated sections and chips, and when finished, the chip removing adapter is raised. And lift
Close the shutter device 3 and remove the cutting powder removing adapter.

[0008] 5. Next, the disk plate 6 and the insertion pipe 7 (both are integrated) are fixed to the disk plate receiving table 5 of the adapter 4.

6. Insert the inspection device into the insertion pipe 7,
The cable sheet unit 8 is tightened, the shutter device 3 is opened, and the air purge cock 15 of the insertion pipe 7 is opened to perform purging.

[0010] 7. The insertion pipe is pushed down into the gas conduit together with the inspection equipment, and the gas conduit is inspected while the cable is sealed with the cable seal unit.

8. When the inspection is completed, the inspection equipment is pulled back from the gas conduit A into the insertion pipe 7, the insertion pipe 7 is lifted together with the inspection equipment, the shutter device 3 is closed, the cable seal unit 8 is loosened, and the inspection equipment is removed from the insertion pipe 7. Take out, disk plate 6, insertion pipe 7
Is removed from the disk plate receiving table 5.

9. A plug fixing jig (not shown) with a plug is attached to the disk plate receiving base 5 of the adapter 4, the shutter device 3 is opened, the plug is fixed after purging, and the plug fixing jig is removed when the operation is completed.

10. Adapter 4, shutter device 3,
The pedestal 2 is removed from the attachment (split sleeve) 1, and the plug is fully tightened.

[0014]

However, in the case of the above-mentioned conventional apparatus, when the in-pipe inspection equipment inserted into the gas conduit A is turned 180 ° to inspect the opposite direction, the equipment is once inserted into the insertion pipe 7. The shutter device 3 is once closed, the shutter device 3 is once closed, the upper portion is removed from the adapter 4, and the mounting device is reattached so that the insertion pipe 7 faces in the opposite direction.
After opening the shutter device 3 again and purging the inside of the device with air in the same manner as when newly installing the device, the insertion pipe 7 containing the device is pushed down into the gas conduit A, and the device is removed from the gas conduit A.
There is a problem that it is necessary to push and re-insert the inside, and this turning work takes time and effort.

It is an object of the present invention to provide an apparatus for inserting an inspection instrument into a gas conduit which can easily change the insertion direction into the gas conduit.

[0016]

The structure of the apparatus for inserting the inspection equipment according to the present invention into a gas conduit is as follows.

An attachment to the gas conduit, a pedestal mounted on the attachment, a shutter device mounted on the pedestal, an adapter with an air purge cock mounted on the shutter device, mounted on the adapter Disc plate support, Disc plate mounted on the disc plate support, Insert pipe that can be inserted into the gas conduit via the adapter, shutter device, pedestal, attachment via the disc plate, Insert pipe An apparatus for inserting inspection equipment into a gas conduit, the inspection equipment comprising a cable seal unit attached to an upper end entrance of the apparatus, wherein at least 180 ° can be rotated between the adapter and the disk plate pedestal, and Apparatus for the testing equipment made by the preparative cradle side fitted with a fixing screw for rotation stopper is inserted into the gas conduit.

[0018]

[Action] First, an attachment (split sleeve), a pedestal, and a shutter device are attached to a location where a gas conduit inspection device is to be inserted.

2. On top of that, attach an automatic feeder with a forsaw, and further attach an electric drill on it,
Open the shutter device and pierce the gas conduit with no blow (no leakage).

3. When the drilling is completed, the electric drill is removed, the fork of the automatic feeder is lifted up, the shutter device is closed, and then the automatic feeder with the forsaw is removed.

4. Attach the adapter on the shutter device, attach the chip removal adapter to the adapter's disc plate pedestal, open the shutter device, and after purging, push down the chip removal adapter into the gas conduit,
Remove the perforated section and chips, lift the chip removal adapter when finished, close the shutter device and remove the chip removal adapter.

5. Next, a disk plate and an insertion pipe (both are integrated) are attached and fixed to the disk plate receiving base of the adapter.

6. The inspection equipment is inserted into the insertion pipe, the cable seal unit is tightened, the shutter device is opened, and the air purge cock of the insertion pipe is opened to perform purging.

[7] The insertion pipe is pushed down into the gas conduit together with the inspection equipment, and the gas conduit is inspected while the cable is sealed with the cable seal unit.

8. After performing the predetermined inspection in this way, when inserting the inspection device into the gas conduit in the opposite direction again, once raise the inspection device into the insertion pipe, then loosen the fixing screw and remove the disk plate receiving stand. Free and turn 180 degrees to change direction. On this occasion,
The shutter device may be left open or closed.
After changing the direction, tighten the fixing screw to prevent the cradle from rotating, and insert the inspection equipment in the same way as before.

9. When the inspection is completed, pull the inspection equipment back from the gas conduit into the insertion pipe, lift the insertion pipe together with the inspection equipment, close the shutter device, loosen the cable seal unit, remove the inspection equipment from the insertion pipe, insert the disc plate, and insert Remove the pipe from the disc plate cradle.

10. Attach a plug-fixing jig with a plug to the disk plate holder of the adapter, open the shutter device, perform plugging after purging, and remove the plug-fixing jig when finished.

11. Remove the adapter, shutter device and pedestal from the attachment (split sleeve) and fully tighten the plug.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, a portion below an adapter and a portion above a disk plate receiving base are the same as in the conventional example, and are therefore omitted.

A seal ring 10 is attached to the outer periphery of the upper opening 9 of the adapter 4 and a skirt portion 11 is formed below the disk plate receiving base 5. The skirt portion 11 covers the seal ring 10. And is rotatably attached to the upper part of the adapter 4.

Reference numeral 12 denotes a fixing screw attached to the skirt portion 11 of the pedestal 5. By tightening the fixing screw 12, the adapter 4 and the pedestal 5 are fixed.

Reference numeral 13 denotes a disk plate mounted on the upper surface of the receiving table 5, a handle for fixing a chip removing adapter and a plug fixing jig, and 14 denotes an air purge cock.

In the above embodiment, when changing the direction of the insertion direction of the inspection equipment, the inspection equipment is once pulled up into the insertion pipe, the fixing screw 12 is loosened, and
This is possible by rotating by 80 °.

[0034]

[Effects of the present invention] As described above, the present invention is configured such that the cradle can be rotated at least 180 °, so that when the direction of the inspection device inserted into the gas conduit is changed to the opposite direction, the device is temporarily stopped as before. Is pulled up and stored in the insertion pipe, but may be rotated by 180 ° as it is. Therefore, the direction can be changed easily and in a short time.

Further, when the insertion direction is changed, it is not necessary to perform the air purge again, so that the number of operations and the operation time can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an adapter and a disc plate support according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is an explanatory view of a conventional inspection device insertion device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attachment 2 Pedestal 3 Shutter device 4 Adapter 5 Disk plate receiving table 6 Disk plate 7 Insertion pipe 8 Cable seal unit 9 Upper mouth 10 Seal ring 11 Skirt part 12 Fixing screw 13 Fixed handle 14, 15 Air purge cock

Continuation of the front page (56) References JP-A-61-75257 (JP, A) JP-A-63-161358 (JP, U) JP-A-1-84061 (JP, U) JP-A-2-140358 (JP) , U) Japanese Utility Model Showa 61-123965 (JP, U) Japanese Utility Model Showa 61-157860 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. An attachment to a gas conduit, a pedestal mounted on the attachment, a shutter device mounted on the pedestal, an adapter with an air purge cock mounted on the shutter device, A disk plate support to be mounted, a disk plate mounted on the disk plate support, an insertion pipe that can be inserted into a gas conduit via the adapter, shutter device, pedestal, and attachment via the disk plate; An apparatus for inserting an inspection device, which comprises a cable seal unit attached to an upper end entrance of an insertion pipe, into a gas conduit, wherein at least 180 ° can be rotated between the adapter and the disk plate receiving table, and a disk press is provided. A device for inserting an inspection device, which is equipped with a fixing screw for rotation prevention on the side of the gantry, into a gas conduit.