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:
Nov. 29, 1994
Filed:
Feb. 10, 1994
Applicant:
Inventors:
James D Seebald, Wellsville, NY (US);
Carlton L Bledsoe, Wellsville, NY (US);
William T Amundson, Cuba, NY (US);
Assignee:
ABB Air Preheater, Inc., Wellsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ; F28G / ;
U.S. Cl.
CPC ...
165-5 ; 165 111 ;
Abstract
A system and method for detecting hot spots in a rotary regenerative air preheater which compensates for normal variations in the temperature of the incoming hot gas stream or incoming cold air stream. Alarm conditions are based on calculations relating to the average and maximum outlet gas or outlet air over a period of time compared to the air and gas inlet temperature. The alarm is triggered if the maximum values deviate from the time averaged values more than a selected percentage.