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:
Apr. 23, 1996
Filed:
Dec. 02, 1993
Paul J Williams, Franklin Township, OH (US);
The Babcock & Wilcox Company, New Orleans, LA (US);
Abstract
A system for protecting the material of a gas-gas heater which receives a raw flue gas for being provided to a desulfurization plant for cleaning of the flue gas comprises a path of raw flue gas having a gas temperature which is provided to the heater. A quench device communicates with the raw flue gas flow for providing a rapid cooling of the raw flue gas. A controller communicates with the flow of raw flue gas and the quench device. The controller has a variable, pre-set temperature value which is the temperature at which the material of the heater can be damaged. The controller monitors the temperature of the raw flue gas for detecting when the temperature of the raw flue gas is greater than the pre-set temperature value for activating the quench device in order to provide a rapid cooling of the raw flue gas until the gas temperature is less than the pre-set temperature value.