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:
Oct. 06, 1998
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Haiwen Chen, Bethlemen, PA (US);
Ke Hong, Kendall Park, NJ (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ; G01M / ;
U.S. Cl.
CPC ...
73 407 ; 422 62 ;
Abstract
Methods and apparatus are provided for detection of leaks in boilers containing a temperature control liquid which is supplemented with feedwater and removed as blowdown and steam. The methods include measuring rates associated with the feedwater supplementation and blowdown and steam removal means, adding a tracer in a manner to ensure a non-constant concentration in the temperature control liquid, determining the concentration of the tracer in the blowdown, calculating the mass of the temperature control liquid, calculating the unaccounted for water rate and comparing this rate with zero to determine if a leak condition is present.