DD271655A1 - DEVICE FOR CLEANING THE SURFACE OF A CYLINDRICAL COMPONENT - Google Patents

Abstract

The invention relates to a device for cleaning the surface of a cylindrical component, in particular a pipeline of larger diameter, wherein in a Ringgehaeuse associated with a compressed air loop line Strahlduesen are arranged to form a ring-working space. To achieve a low building structure and net mass in the Ringgehaeuse a ring working space opened ring groove is inserted into the rotatable about a provided with a Fuehrungsstange ball head rotationally movable, provided with a drive blade, arranged in the ring working space and acted upon by a bias brush-like cleaning body and spacer segments Guided and arranged in Duesenring Strahlduesen are employed tangentially. Fig. 1

Description

See 2 drawings

Field of application of the invention

The invention relates to a device for cleaning the surface of a cylindrical component, in particular a pipeline of larger diameter.

Characteristic of the known state of the art

For cleaning the surface of a superheated steam line in a power plant for the purpose of preparing for material testing or generally for the removal of corrosion layers and / or for the preparation of corrosive measures of cylindrical components, in particular pipes, are Vorrichtunn ».i with a Ringgehäui., Nozzle ring with jet nozzles and ring working space known (DD-PS 251674, DE-OS 2354153) .The jet nozzles are via a Ringleitunij with a blasting agent container, eg., Air and / or vapor and / or liquid and / The device is designed to be hinged, so that it can also be used on straight-line or gobogenic lines on operating pipelines, but the known devices have the following disadvantages:

1. Numerous «mechanically moving parts subject to wear.

2. Significant size with high space requirements for on-site use.

3. Gioße own mass.

4. Problems with on-site use on installed pipelines.

5. Complicated media supply and removal (blowing agent / blasting material).

6. Expenses for blasting material processing.

The known brush cleaning device (DE-OS 3016804) are not suitable for the following reasons:

1. Significant size with high Platzbedarl for on-site use.

2. High intrinsic mass, which leads to uneven RundUuf and pressure in horizontal piping and burn marks results.

3. Many mechanical moving wear-intensive parts.

Object of the invention

The aim of the invention is to develop a simple and effective device for cleaning the surface of cylindrical bodies equally with straight and curved sections. In addition, a suitable, in particular for material testing high surface quality should be achievable.

-2- 27: 655

Explanation of the essence of the invention The invention has for its object to provide a device with axially and radially movable movement elements

develop.

This is achieved in that, according to the invention, an annular groove open to the ring working space is introduced in the ring housing Is, in the upper one provided with a guide rod ball head rotationally movable, with a Antriebsschaufol

provided, arranged in the ring working space and acted upon by a bias brush-like cleaning body and spacer segments rotaiionsbaweglich out and arranged in the nozzle ring jet nozzles are employed tangentially.

exemplary In one embodiment, the invention is explained in detail. The drawing shows;

Fig. 1: attached to the pipe to be cleaned device in cross-section, Fig. 2: the patch on the pipe to be cleaned device in longitudinal section.

The consisting of the cover plate 1 and the side panels 2 Ringgehuse 3 has the working annular space 4 open annular groove. 5

on (Figures 1 and 2).

In the cover plate 1, the tangentially employed 'jet nozzles 6 are integrated and via the air supply 8 with the ring line. 7

connected.

In the annular groove 5, the spacer segments 9 and between them the ball head 10 of the Nadelfußreinigers 11 in the annular groove. 5

arranged circumferentially. The RinggehSuse 3 is hinged or divisible placed on the pipe 12 to be cleaned.

The Nadelfußreiniger 11 is connected via the guide rod 13 and the compression spring 1 β with the ball head 10 and has on Upper part of the drive blade 14 (Flg. 2). The drive blade has horizontally opposite to the direction of rotation and bent vertically against the direction of movement Blade parts on. The Nadelfußreiniger 11 is cup-shaped, arranged in the working annular space 4 and with the of a variety of Needles existing needle foot 15 provided, wherein in the center by the centrally arranged guide rod 13 no needles.

are provided.

The annular groove 5 has the lateral stops 17. The ring housing 3 has the stator 18 with spring part 19, centering 20 and Wheel sets 21 on (Fig. 2). The mode of action is the following: The housing 3 is placed around the unifying tube 12 and adjusted via the centering 20 of the stator 18 on the tube 12. The ring line 7 is connected to the compressed air source, not shown. The compressed air passes through the air supply 8 in the tangentially arranged jet nozzles 6. When the compressed air impinges on the Drive vane 14 of the Nadelfußreinigers 11, the kinetic energy is converted so that the rotationally movable in the Ring groove 6 guided Nadelfußreiniger 11 and the spacer segments 9 are moved in Strömungsrichturig 22. simultaneously

the needles 11 rotatably movable about the ball head 10 are also set in rotation. About the

Compression spring 16, the Nadelfußreiniger 11 is pressed onto the surface of the tube 12. By means of the Nadelfußreiniger 11 is

The respective surface of the tube 12 cleaned with high surface quality.

Due to the cup shape of the Nadelfußreinigers and not in the center dos Needelfußes 15 Nadoln is the Surface of the tube 12 light exposed to burn marks. In addition, limit the lateral stops 17 the Horizontal movement of the needle foot cleaner 11. The invention achieves the following advantages:

1. small size (width),

2. low net mass,

3. little mechanically moving parts,

4. easy handling,

5. high operational safety (no danger from rotating parts),

6. due to small width good curve throughput on curved sections,

7. high surface quality.

Claims (5)

1. A device for cleaning the surface of a cylindrical component, in particular a pipe of larger diameter, wherein in a ring housing connected to a compressed air loop line nozzles un'er training a ring working space are arranged, characterized characterized, dab in the ring housing a ring working space opened annular groove is inserted into the rotatable about a provided with a guide rod ball head rotationitbewegliche, provided with a drive blade, arranged in the ring working space and acted upon by a bias brush-like cleaning body and spacer segments and arranged in the nozzle ring jet nozzles are employed tangentially. .2. Apparatus according to claim 1, characterized in that the cleaning body, provided with a Nadelfuli), cup-shaped. 3. Apparatus according to claim 1, characterized in that the cleaning body is guided on all sides movable in the annular groove. 4. Apparatus according to claim 1, characterized in that the drive blade horizontally against the direction of rotation and vertically opposite direction of movement has curved blade parts, 5. Vorrichtu ng according to claim 1, characterized in that the jet nozzles are arranged eccentrically in RinggeMiuse.