The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2008
Filed:
Jan. 28, 2005
Applicant:
James C Bellows, Maitland, FL (US);
Inventor:
James C Bellows, Maitland, FL (US);
Assignee:
Siemens Power Generation, Inc., Orlando, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01K 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention involves a system for controlling the electric charge within the exhaust hood and condenser of a steam turbine by using shaft current as an indirect measurement of exhaust charge, and then adjusting the pH accordingly. The present invention uses the turbine-generator shaftinstead of a probe, and therefore measures the potential of the current in the shaft to the ground. This measurementis then fed into a control unitwhich adjusts the chemical feedto the feedwater supplyof the steam turbine system.