Cleaning and liquid contact with solids – Processes – Combined
Reexamination Certificate
2011-04-12
2011-04-12
Barr, Michael (Department: 1711)
Cleaning and liquid contact with solids
Processes
Combined
C416S230000, C415S115000
Reexamination Certificate
active
07922825
ABSTRACT:
An object of the present invention is to effectively remove extraneous matter adhering to turbine blades without disassembling equipment. A turbine in accordance with the present invention is provided with a pressure gage for detecting the pressure in a steam chamber between a stator blade and a moving blade. In a casing on the upstream side of the stator blade in a duct, a nozzle connected to a high-pressure water generator via a valve is installed. Similarly, in the stator blade, an introduction pipe which is connected to the high-pressure water generator via a valve is provided. The introduction pipe is connected with a nozzle in which many injection ports capable of causing water to flow onto both surfaces of the profile of the stator blade are formed. When extraneous matter adheres to the turbine blades, a control unit detects a rise in pressure via the pressure gage, whereby the control unit opens the valves to remove extraneous matter by means of high-pressure water.
REFERENCES:
patent: 3935034 (1976-01-01), Hayes
patent: 4059123 (1977-11-01), Bartos et al.
patent: 4384452 (1983-05-01), Rice
patent: 4548040 (1985-10-01), Miller et al.
patent: 5480283 (1996-01-01), Doi et al.
patent: 5573604 (1996-11-01), Gerdes
patent: 5944483 (1999-08-01), Beck et al.
patent: 6180170 (2001-01-01), Grossmann et al.
patent: 6394108 (2002-05-01), Butler
patent: 6502403 (2003-01-01), Tazaki et al.
patent: 6659715 (2003-12-01), Kuesters et al.
patent: 1 032 468 (1958-06-01), None
patent: 58-77103 (1983-05-01), None
patent: 58077103 (1983-05-01), None
patent: 60-69214 (1985-04-01), None
patent: 61-169627 (1986-07-01), None
patent: 61169627 (1986-07-01), None
patent: 63186866 (1988-08-01), None
patent: 4173956 (1992-06-01), None
Saito et al., “Development of Scale Deposit Inhibition Technology Using Turbine Water-Cooled Nozzle”,Geotherman Resources, Council TRANSACTIONS, vol. 19, Oct. 1995, pp. 469-474.
European Search Report for corresponding European Patent Application No. 03 017470.0 dated Jul. 28, 2005.
Alston & Bird LLP
Barr Michael
Mitsubishi Heavy Industries Compressor Corporation
Riggleman Jason P
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