JP4661562B2 - C gas piping drainage pipe deposit removal device - Google Patents

Description

  The present invention makes it easy to remove dust, tar, carbon and other deposits that block the air vent pipe, blow pipe and instrument pipe used in steelworks without stopping the fluid in the piping system. The present invention relates to a jig to be removed, which is particularly suitable for an opening operation of a C gas pipe drain pipe closing part.

  At the steelworks, COG (coke oven gas) generated from the coke oven is used as fuel gas in a heating furnace, etc., COG sensible heat is recovered and used for drying drying of coal, heat from waste gas, etc. A plurality of waste heat recovery devices that perform recovery are installed, and gas piping is circulated in the site.

  These gas pipes are branched from the main pipe through which the gas is fed, for venting air, blowing, and taking out the instrument, but when used for a long period of time, they are blocked by dust, tar, carbon, etc. For this reason, several foreign matter removing apparatuses in the pipe have been proposed.

  Patent Document 1 relates to an apparatus for removing deposits such as rust, carbon, oil, etc. formed on the inner peripheral surface of various pipes such as public water pipes and gas pipes. An apparatus for scraping a kimono is described.

  Patent Document 2 relates to a method for removing coking deposits using coke oven gas, and describes a method for removing deposits in piping from an impact applying device such as an air knocker.

  Patent Document 3 describes a method of blowing a gas added with an abrasive directly into a pipe and removing deposits adhering to the pipe wall, and is effective for a heating pipe in a heating furnace for crude oil refining. Is disclosed.

Patent Document 4 describes a deposit removing device in which a member for removing deposits is attached to the tip of an arm mechanism whose opening is adjusted by an actuator.
JP 2004-74052 A JP-A 61-209291 Japanese Patent Laid-Open No. Sho 61-280397 Japanese Utility Model Publication No. 60-122899

  By the way, in order to eliminate the blockage of the pipe, it is necessary to stop the fluid in the pipe system at the blockage point when the apparatus and method described in Patent Documents 1 to 4 and cleaning by steam cleaning or external arrow hitting are performed. This was one of the causes of productivity decline due to the suspension of factory operations.

  Then, an object of this invention is to provide the apparatus which can remove the deposit | attachment inside piping, without stopping operation of a factory.

The object of the present invention can be achieved by the following means.
1. A tubular body, provided with a rod-shaped member whose one end is spirally processed in a drill shape and a handle is provided at the other end and whose overall length is longer than that of the tubular body, and a mechanism for holding the rod-shaped member on the tubular shaft inside the tubular body. A cylindrical C gas piping drainage pipe deposit removal device ,
A blow pipe provided with a blow valve is attached to a part of the tubular body, one end of the tubular body is opened, and the mechanism holding the rod-shaped member is attached to the other end, and the mechanism is an airtight structure. The rod-shaped member has a structure that can be rotated around the rod axis and can be taken in and out in the tube axis direction of the tube body, and the rod-shaped member has two stoppers for adjusting the stroke in the rod axis direction. One is attached so that the rod-shaped member does not fall out from the tube when pulled out, and the other is attached so as to prevent one end spirally processed into the drill shape from entering the gas main tube, C gas pipe, characterized in that said between rod-like member having a possible gap pull the drill-shaped in a spiral machined tip bites deposits from C gas pipe drainage tube of the rod-shaped member with Ren vent pipe deposit removal device.

According to the present invention, the following effects are obtained, which is extremely useful industrially.
1. It is possible to clean the inside of the pipe without stopping the line.
2. By providing the pressure relief pipe, it is possible to confirm the cleaning status of the closed portion of the closed pipe.
3. Since the tip of the drill bite bites into the dust, it is possible to draw the dust out of the pipe by pulling out the drill bit.

Hereinafter, the present invention will be described in detail with reference to the drawings with reference to an apparatus for removing deposits in a pipe in a blow pipe.
FIG. 1 is a side sectional view of an in-pipe deposit removing device according to an embodiment of the present invention, and shows a state in which a drawer pipe provided with an existing valve is attached to its tip. In the figure, 1 is an apparatus for removing deposits in a pipe, 2 is a pipe body, 2a is a front end part of the pipe body 2, 2b is a rear end part of the pipe body 2, 3 is a blow pipe, 4 is a rod-shaped member, and 41 and 42 are stoppers. , 43 is a handle, 44 is a holding mechanism, 4a is a rod-like member 4, a tip portion spirally processed in a drill shape, 5 is a T-shaped elbow, 6 is a blow valve, 100 is an existing valve, 200 is a gas main pipe, 300 Is a drawing pipe, a is a seal of the holding mechanism 44, b is a gland packing, and c is a deposit in the drawing pipe 300.

  The illustrated in-pipe deposit removing apparatus 1 includes a tube body 2, a rod-shaped member 4, and a holding mechanism 44 that holds the rod-shaped member 4 on the tube body 2. One end of the tube body 2 (the tip portion 2a side in the figure) is opened, and the tube body 2 is attached to the lead-out pipe 300 from the gas main pipe 200 via the existing valve 100. Therefore, the tip 2a is threaded to match the existing valve 100.

  The other end of the tube body 2 (the rear end portion 2b side in the figure) is threaded, and the holding mechanism 44 that holds the rod-like member 4 so that the tube axis of the tube body 2 and the center axis of the rod coincide with each other is removed. Install as possible. A protrusion 2c is provided at a part of the rear end portion 2b in the pipe to facilitate the holding of the rod-like member 4 by the holding mechanism 44, and a gland packing b is provided between the protrusion 2c and the holding mechanism 44 for airtightness. Install.

  The rod-like member 4 has a full length longer than that of the pipe body 2 and is long enough to draw the deposit c on the drawing pipe 300 from the pipe.

Moreover, the front-end | tip part 4a is processed into a drill shape, and makes the front-end | tip part 4a bite into the deposit | attachment c by rotating around a central axis. A handle 43 is attached to the rear end of the rod-like member 4 so as to rotate around the central axis in the direction of the rod axis indicated by the arrow e. Further, a stopper 41 is provided to adjust the stroke in the rod axis direction. 42 is provided. The stopper 41 is attached to prevent the gas from flowing out by removing the stick member 4 from the tube 2 when the stick member 4 is pulled out after removing the deposits. The stopper 42 is for preventing the tip 4a of the rod-shaped member from entering the gas main pipe 200 too much and is not essential. The rotation for causing the tip portion 4a to bite into the deposit c may be mechanically performed.
The holding mechanism 44 attaches the seal a to the portion where the rod-like member 4 slides so that the gas from the gas main pipe 200 does not flow out when the sticking member c is pulled out by the rod-like member 4 to form an airtight structure.

  The structure described above is a structure for pulling out the deposit c from the pull-out pipe 300. In the illustrated deposit removing apparatus in the pipe, the operation of the factory is not stopped. It is attached.

  The blow pipe 3 is attached to an intermediate portion in the axial direction of the tube body 2 via a T-shaped elbow 5 and includes a blow valve 6 on the open end side thereof. The attachment position of the blow pipe 3 may be any position in the circumferential direction of the pipe body 2.

  Below, the procedure for removing the deposit c adhering to the inside of the lead pipe 300 using the in-pipe deposit removing device 1 will be described.

  Procedure 1: The existing valve 100 is closed, and the in-pipe deposit removing device 1 is screwed to the outside (downstream side) of the existing valve 100 of the pull-out pipe 300. At this time, the blow valve 6 is closed, and the handle 43 is pulled so that the distal end portion 4 a of the rod-shaped member 4 is in the tube 2, and the rod-shaped member 4 is pulled in.

  Procedure 2: The existing valve 100 and the blow valve 6 are opened, the rod-like member 4 is rotated by turning the handle 43, and the tip 4a is bitten into the deposit c.

  Procedure 3: Next, the handle 43 is pulled to draw the deposit c into the rod-shaped member 4 and draw the deposit c closer to the pipe body 2 than the existing valve 100.

  Procedure 4: In the state of Procedure 3, the existing valve 100 is closed, the tube body 2 is rotated, and is removed from the existing valve 100.

Example of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adhering substance removal apparatus in piping 2 Tubing body 2a Front end portion 2b Rear end portion 3 Blow piping 4 Bar-shaped member 41, 42 Stopper 43 Handle 44 Holding mechanism 4a Front end portion 5 T-type elbow 6 Blow valve 100 Existing valve 200 Gas main pipe 300 Drawer piping a Seal b Gland packing c Deposit

Claims (1)

A tubular body, provided with a rod-shaped member whose one end is spirally processed in a drill shape and a handle is provided at the other end and whose overall length is longer than that of the tubular body, and a mechanism for holding the rod-shaped member on the tubular shaft inside the tubular body. A cylindrical C gas piping drainage pipe deposit removal device ,
A blow pipe provided with a blow valve is attached to a part of the tubular body, one end of the tubular body is opened, and the mechanism holding the rod-shaped member is attached to the other end, and the mechanism is an airtight structure. The rod-shaped member has a structure that can be rotated around the rod axis and can be taken in and out in the tube axis direction of the tube body, and the rod-shaped member has two stoppers for adjusting the stroke in the rod axis direction. One is attached so that the rod-shaped member does not fall out from the tube when pulled out, and the other is attached so as to prevent one end spirally processed into the drill shape from entering the gas main tube, C gas pipe, characterized in that said between rod-like member having a possible gap pull the drill-shaped in a spiral machined tip bites deposits from C gas pipe drainage tube of the rod-shaped member with Ren vent pipe deposit removal device.

Images