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1. The Invention |
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Title: Regeneration
and elongation technology of blades durability in steam turbine terminal stages The problem the
inventor(s) wanted to solve: Terminal
stages blades of steam turbine work in the moist steam atmosphere.
Precipitating water drops, hit spinning turbine blades (terminal stage) and
induce great blades edges of attack erosion which leads to significant
decrease of turbine work efficiency, durability and exploitation reliability. Description: W Politechnice Częstochowskiej opracowano technologię
wytwarzania wielowarstwowego systemu powłokowego pozwalającego w znacznym
stopniu ograniczyć te niekorzystne zjawisko.
System powłokowy można wytwarzać na łopatkach turbin bez potrzeby
szczególnej obróbki i nie wymagane jest demontaż łopatek z wału turbiny. Presentation: Poster Fields of
application: At
Czestochowa University of Technology, a new technology has been worked out –
multilayer coating system production technology that enables to reduce this
adverse phenomenon to great extend. Advantages: Using
physical properties of multilayer coating system enables for reduction of
erosion and cavitation influence caused by steam
drops precipitation on blades surface at turbine terminal stages. Very hard
coating material grains, embedded in final working layer elastic base of
coating system give protection from over wear. Coating system provides high
base adhesion – in precoat-binding layer
metallurgical bindings occur between the base and the sprayed layer and
thanks to great intermediate layer flexibility, long
and effective work of hard working layer of the system is possible. Stage of
development: Documentation
available: Yes – |
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2. The inventor (or inventors): |
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Name(s): Sławomir MOREL Photo. None Owner of the
invention? The Industrial Furnaces and Environment Protection
Department, The |
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3.
Protection |
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Patent Status: |
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4.
Business intention |
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Cooperation, Selling the new product |
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5.
Contact: |
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The Industrial Furnaces
and Environment Protection Department, The Address: Av. Armii 19, 42-200 Czestochowa,
Poland Tel.: +48 34 325
07 74,
+48 34 325 07 23, cell phon: +48 0505 530 142 e-mail.: morel@mim.pcz.czest.pl |