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Implementation of new welding line for membrane walls production
01.02.09

 

ADVANCED TECHNOLOGIES IN BOILER PRODUCTION

INDUSTRIAL TECHNOLOGICAL LINE FOR PRODUCTION OF MEMBRANE WALLS

For the first time in Ukraine a high-performance modern production of membrane walls according to international standards was created by “Kotloturboprom” Ltd. These membrane walls are used in steam boilers of thermal and district heating power plants, hot-water boilers (with heat capacity above 30 GCal) and heat-recovery boilers.
 

Besides this, membrane walls could also be applied in metallurgical, chemical, oil and gas industries.
 

Membrane walls production line of German company Deuzer Maschinenfabrik Heitze GmbH & Co was installed and put into operation at “Kharkov boiler mechanical plant” Ltd.
 

This line comprises:
 

♦ Machine for membrane walls welding, type 411 DS 4/2000, DEUMA Company;

♦ Roller conveyer;

♦ Calibration (plate-straightening) machine, Type 100, SCHNUTZ Company;

♦ Automatic machine for tubes sanding;

Basic production characteristics:

♦ Max. length of a membrane wall ..................................20 000 mm

♦ Diameter of tubes .........................................................25...102 mm

♦ Width of fin ......................................................................10...100 mm

♦ Welding type. submerged arc welding

♦ Min. bending radius ..............................................................150 mm

 

Calibration machine ensures straightening of strip steel with the following dimensions:

 


 

♦ Input width from 12 to max.105 mm

♦ Input thickness from 5 to max.10 mm with yield strength of max. 400 N/mm2.

 

Bending of membrane walls is provided by the machine with the following technical parameters:
 

♦ Membrane wall tubes diameter: .....................................27 . 101 mm

♦ Tubes wall thickness, max.: ......................................................10 mm

♦ Wall width: ...............................................................................2 000 mm

♦ Bending radius: ..............................................................150 ...400 mm

 

♦ Bending angle.......................................................................... max 150°
 

If necessary, membrane walls are heat treated in an electrical furnace (Termomaster YaO-12.110.15/900).
 

Installed production line of membrane walls ensures high quality level in accordance with all European norms.
 

Membrane walls could be supplied to domestic market or abroad, either for repair and modernization projects or for/with new furnaces (according to Customer design or the design of Kharkov Central Design Office – branch of Kotloturboprom Ltd.).