SU1015936A1 - Apparatus for cleaning tube interior surface from scale - Google Patents

Apparatus for cleaning tube interior surface from scale Download PDF

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Publication number
SU1015936A1
SU1015936A1 SU813339388A SU3339388A SU1015936A1 SU 1015936 A1 SU1015936 A1 SU 1015936A1 SU 813339388 A SU813339388 A SU 813339388A SU 3339388 A SU3339388 A SU 3339388A SU 1015936 A1 SU1015936 A1 SU 1015936A1
Authority
SU
USSR - Soviet Union
Prior art keywords
scale
inside
tube
cleaning
equipped
Prior art date
Application number
SU813339388A
Other languages
Russian (ru)
Inventor
Геннадий Васильевич Беляев
Original Assignee
Челябинский Ордена Ленина Трубопрокатный Завод
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Челябинский Ордена Ленина Трубопрокатный Завод filed Critical Челябинский Ордена Ленина Трубопрокатный Завод
Priority to SU813339388A priority Critical patent/SU1015936A1/en
Application granted granted Critical
Publication of SU1015936A1 publication Critical patent/SU1015936A1/en

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Abstract

1. DEVICE FOR CLEANING THE INTERNAL SURFACE OF A PIPE FROM OICALINE, containing a hollow cantilever bar with a paf5o4eft feed unit, characterized in that, in order to improve the quality of cleaning, the bar is made in the form of three concentric tubes — inside jets, inside, inside, inside the pipes, inside, inside the internal cleaning tubes, inside the bar. at the exit end, a cup-shaped reflecting disk, the output end of the middle tube is made with a weft of a streamlined shape, and the outer tube is equipped with a node for removing the working medium and scale being knocked down and installed at a distance from the cup-shaped reflector disc with the formation of annular zone knocking scale. 2. The POP.1 device, which is designed so that, with the aim of subsequently applying an acid coating to the inner surface of the tube, it is equipped with a nozzle mounted on the end of the inner tube. §

Description

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The invention relates to pipe production, in particular to the removal of scale from pipes obtained by continuous furnace welding in a stream of a pipe rolling unit.

A device for cleaning the internal surface of the pipe from scale, containing a hollow cantilever rod with a node for supplying a working environment fll

However, this device does not allow for the removal of scale from the zone of knocking down. The scale remains inside the tube, sticks to the heated walls and does not allow the coating to be applied to the inner tube.

The aim of the invention is to improve the quality of cleaning.

This goal is achieved by the fact that in a device for cleaning the inner surface of pipes from scale; containing a hollow cantilever bar with a node for supplying the working medium, the bar is made in the form of three concentrically arranged tubes, the inner tube has a bowl-shaped reflecting disk at the back end, the output end of the middle tube is made with a streamlined shape, and the outer tube is equipped with a node scale and set at a distance from the cup-shaped vrazhalitelsu on the disk with the formation of an annular zone knocking scale.

For the purpose of subsequent deposition of a protective coating on the inner surface of the pipe, the device is equipped with a nozzle installed at the exit end of the inner pipe.

The drawing shows a device for cleaning the internal surface of the pipe from scale.

A device for cleaning the internal surface of the tube from scale contains rods: made in the form of three concentrically arranged tubes 1, 2 and 3. The inner tube 3 has a chagus shaped reflecting disk 4 at the input end, and the output end of the middle tube 2 is made with thickening 5 of flowing form . The outer tube 1 is mounted at a distance from the cup-shaped reflecting disk to form an annular zone with a scale. At the exit end of the inner tube, a nozzle 6 is installed to apply a protective coating to the pipe walls. MEANS OF TUBES The rings 7 are installed with through holes for the passage of the working medium and scale. The bowl of the jubrazny disk and the end 8 of the outer tube nearest to it are made with a diameter of 0.6-0.97 of the inner diameter of the pipe being cleaned.

The device works as follows.

A cantilever bar is inserted into the internal cavity of the pipe 9 to be welded and rigidly attached. Tube 2 supplies steam to pressure (for example, 15 atm.), And dross and suction are exhausted through tube 1, the waste steam is drained, then moisture is dried and scale is deposited, for example, in cyclone-type air purifiers.

The d-zone for knocking down scale, in which vapor under pressure meets with the inner wall of pipe 9, is separated by reflectors from the end 8 of the tube, directing the flow of steam and knocked down scale, as well as preventing steam and scale from escaping from the zone of knocking into the tube cavity .

Through a nozzle, a protective coating (for example, from thermoplastic synthetic resins based on polyamide, polyacrylate, polyethylene, as well as protective enamels, etc.) fed through channels 10 located in the center of the concentric tubes is uniformly applied to the internal surface of the pipe that is descaled.

The use of the present invention will eliminate the operations of pipe etching and hot-dip galvanizing, reduces the cost of production of continuous furnace-welded pipes from the Mie coating, and also allows replacing all existing inefficient methods of descaling and coating outside the flow of the pipe-rolling unit.

Claims (2)

1. DEVICE FOR CLEANING THE INTERNAL SURFACE OF PIPES FROM SCALE, containing a hollow cantilever rod with a working medium supply unit, characterized in that, in order to improve the cleaning quality, the rod is made in the form of three concentrically arranged tubes, the inner tube has a cup-shaped reflective the disk, the outlet end of the middle tube is made with a thickening of the streamlined shape, and the outer tube is equipped with a node for discharging the working medium and knocked-off scale and is installed at a distance from the bowl-shaped reflective disk with rofessional annular zone knocking scale.
2. The device according to claim 1, with the exception that in order to subsequently apply a protective coating to the inner surface of the pipe, it is equipped with a nozzle mounted at the output end of the inner tube.
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SU813339388A 1981-09-15 1981-09-15 Apparatus for cleaning tube interior surface from scale SU1015936A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813339388A SU1015936A1 (en) 1981-09-15 1981-09-15 Apparatus for cleaning tube interior surface from scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813339388A SU1015936A1 (en) 1981-09-15 1981-09-15 Apparatus for cleaning tube interior surface from scale

Publications (1)

Publication Number Publication Date
SU1015936A1 true SU1015936A1 (en) 1983-05-07

Family

ID=20977274

Family Applications (1)

Application Number Title Priority Date Filing Date
SU813339388A SU1015936A1 (en) 1981-09-15 1981-09-15 Apparatus for cleaning tube interior surface from scale

Country Status (1)

Country Link
SU (1) SU1015936A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756324A (en) * 1984-05-24 1988-07-12 Bo Larsson Hydrodynamic nozzle for pressurized water cleaning of water, discharge and surface water pipes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Патент JP 54-38051, кл. В 21 С 43/00, 19.11.79 (прототип). *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756324A (en) * 1984-05-24 1988-07-12 Bo Larsson Hydrodynamic nozzle for pressurized water cleaning of water, discharge and surface water pipes

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