JPH0566555U - Device for inserting test equipment into gas conduits - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain an insertion device capable of easily changing the insertion direction of an inspection instrument. [Configuration] At least one pedestal 5 for the adapter 4
It is attached so that it can rotate by 80 °. [Effect] Since the pedestal 5 rotates 180 °, the inspection device is temporarily pulled up to the insertion pipe 7 and then 180 °
You can change direction. As a result, it is not necessary to change the disc plate 6 or perform air purging every time the direction is changed, which saves time and labor for the direction change work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for inserting various inspection devices into a pipe such as a gas pipe.

[0002]

[Prior Art]

 In order to inspect the gas pipe for corrosion and water supply, it is currently practiced to drill a part of the gas pipe and insert inspection equipment into the gas pipe through this hole. When adopting such an inspection method, it is necessary to prevent the gas from leaking through the perforated holes in order to perform the inspection while the gas is still flowing in the gas conduit.

FIG. 3 shows an apparatus for inserting an inspection device in a leak-free manner. 1 is an attachment (split sleeve) to the gas conduit A, 2 is a pedestal attached to the attachment 1. 3 is a shutter device mounted on this pedestal 2, 4 is an adapter with an air purge cock 14 mounted on this shutter device 3, 5 is a disc plate pedestal mounted on this adapter 4, 6 is this A disc plate mounted on the disc plate 5, and 7 is an insertion pipe that can be inserted into the gas conduit A via the disc plate 6, the adapter 4, the shutter device 3, the pedestal 2, and the attachment 1. , 8 is a cable seal unit attached to the upper end inlet of the insertion pipe 7, and is as follows. The work procedure involves drilling, installing equipment, inserting inspection equipment, and closing drilled holes.

1. First, the attachment (split sleeve) 1, the pedestal 2 and the shutter device 3 are attached to the gas conduit A at the location where the inspection equipment is to be drilled.

2. An automatic feeder (not shown) equipped with a hole saw was attached thereon, and an electric perforator (not shown) was further attached thereon, the shutter device 3 was opened, and the gas conduit A was opened with no blow (no leakage). Perforate.

3. When perforation is completed, remove the electric perforator, lift the hosel of the automatic feeder up, close the shutter device 3, and then remove the automatic feeder with the hole saw.

[0007] 4. Attach the adapter 4 on the shutter device 3, attach the chip removing adapter (not shown) to the disk plate cradle 5 of the adapter 4, open the shutter device 3, and after purging, attach the chip removing adapter to the gas conduit. Press down into A to remove the cut pieces and chips, and when finished, lift up the chip removing adapter, close shutter device 3 and remove the chip removing adapter.

5. Next, the disc plate 6 and the insertion pipe 7 (both of which are integrated) are fixedly attached to the disc plate pedestal 5 of the adapter 4.

[0009] 6. The inspection device is inserted 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.

7. With the inspection equipment, push down the insertion pipe into the gas conduit and inspect the gas conduit while sealing the cable with the cable seal unit.

8. When the inspection is completed, the inspection device is pulled back from the gas conduit A into the insertion pipe 7, the insertion pipe 7 is lifted up together with the inspection device, the shutter device 3 is closed, the cable seal unit 8 is loosened, and the inspection device is removed from the insertion pipe 7. Then, the disc plate 6 and the insertion pipe 7 are removed from the disc plate support 5.

9. A plug fixing jig (not shown) with a plug is attached to the disk plate cradle 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 completed.

10. Remove the adapter 4, shutter device 3, and pedestal 2 from the attachment (split sleeve) 1 and fully tighten the plug.

[0014]

[Problems to be solved by the device]

 However, in the case of the above conventional device, when the in-pipe inspection device inserted into the gas conduit A is turned 180 ° to inspect the opposite direction, the device is temporarily pulled up into the insertion pipe 7 and stored. Close the shutter device 3, remove the upper part from the adapter 4, reinstall it so that the insertion pipe 7 faces in the opposite direction, open the shutter device 3 again, air purge the inside of the device in the same way as when newly installing, then It is necessary to push down the insertion pipe 7 storing the gas into the gas conduit A, and push the device back into the gas conduit A to insert it again, which causes a problem that it takes time and labor to change the direction.

It is an object of the present invention to provide an apparatus for inserting a test device into a gas conduit, which can easily change the direction of insertion with respect to the gas conduit.

[0016]

[Means for Solving the Problems]

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

Attachment to the gas conduit, pedestal attached to this attachment, shutter device attached to this pedestal, adapter with air purge cock attached to this shutter device, mounted on this adapter Attached disc plate pedestal, disc plate mounted on this disc plate pedestal, insertion pipe that can be inserted into the gas conduit via the adapter, shutter device, pedestal, and attachment via this disc plate A device for inserting an inspection device into a gas conduit, which comprises a cable seal unit attached to an upper end inlet of the insertion pipe, and is configured to rotate at least 180 ° between the adapter and the disc plate pedestal. This Apparatus for the testing equipment made by attaching a fixing screw for rotation stopping the plate receiving stand side is inserted into the gas conduit.

[0018]

[Action]

 1. First, attach the attachment (split sleeve), the pedestal, and the shutter device to the location of the gas conduit where the inspection equipment is to be drilled.

2. On top of that, an automatic feeder with a hole saw is attached, an electric punch is attached on it, the shutter is opened, and the gas pipe is punched without blow (no leakage).

3. When perforation is complete, remove the electric perforator, lift up the automatic feeder's hole saw, close the shutter device, and then remove the automatic feeder with the hole saw.

[0021] 4. Mount the adapter on the shutter device, attach the chip removing adapter to the adapter's disk plate cradle, open the shutter device, and after purging, push the chip removing adapter down into the gas conduit to remove perforated sections and chips. When finished, lift up the dust removing adapter, close the shutter device, and remove the dust removing adapter.

5. Next, attach and fix the disc plate and the insertion pipe (both are integrated) to the disc plate pedestal of the adapter.

6. Insert the inspection equipment into the insertion pipe, tighten the cable seal unit, open the shutter device, and open the air purge cock of the insertion pipe to perform purging.

7. With the inspection equipment, push down the insertion pipe into the gas conduit and inspect the gas conduit while sealing the cable with the cable seal unit.

8. After performing the prescribed 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 loosen the disc plate support. Free the stand and rotate 180 ° to change direction. At this time, the shutter device may be left open or closed. After changing the direction, tighten the fixing screw to prevent the pedestal from rotating, and then insert the inspection device in the same way as before.

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

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

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

[0029]

【Example】

 1 and 2, the parts below the adapter and above the disk plate pedestal 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 pedestal 5. The skirt portion 11 is attached to the seal ring 10. It is rotatably attached to the upper part of the adapter 4 so as to cover it.

A fixing screw 12 is attached to the skirt portion 11 of the pedestal 5, and the adapter 4 and the pedestal 5 are fixed by tightening the fixing screw 12.

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

In the above embodiment, when changing the direction of the insertion direction of the inspection device, the inspection device is temporarily pulled up into the insertion pipe, the fixing screw 12 is loosened, and the pedestal 5 is rotated 180 ° as it is. Is.

[0034]

[Effect of the present invention]

 As described above, according to the present invention, since the pedestal can be rotated by at least 180 °, when the direction of the inspection device inserted in the gas conduit is changed to the opposite direction, the device is once put in the insertion pipe. It is pulled up and stored, but it may be rotated 180 ° as it is. Therefore, the direction can be changed easily and in a short time.

In addition, since it is not necessary to perform the air purge again when changing the insertion direction, it is possible to reduce the labor and the working time for this.

[Brief description of drawings]

FIG. 1 is a sectional view of an adapter and a disk plate pedestal according to the present invention.

FIG. 2 is a plan view of FIG.

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

[Explanation of symbols]

 1 Attachment 2 Pedestal 3 Shutter device 4 Adapter 5 Disc plate pedestal 6 Disc plate 7 Insertion pipe 8 Cable seal unit 9 Upper opening 10 Seal ring 11 Skirt part 12 Fixing screw 13 Fixing handle 14, 15 Air purge cock

Claims (1)

[Scope of utility model registration request] 1. An attachment to a gas conduit, a pedestal attached to the attachment, a shutter device attached to the pedestal, an adapter with an air purge cock attached to the shutter device, and an adapter on the adapter. A disc plate pedestal to be attached, a disc plate attached to the disc plate pedestal, an insertion pipe that can be inserted into the gas conduit via the adapter, shutter device, pedestal, and attachment via the disc plate, A device for inserting an inspection device into a gas conduit, which comprises a cable seal unit attached to an upper end inlet of an insertion pipe, wherein the disc plate holder is configured to rotate at least 180 ° between the adapter and the disc plate pedestal. A device for inserting an inspection device with a fixing screw for rotation stop attached to the gas pedestal side into the gas conduit.