Accession Number : ADD004446

Title :   Apparatus and Process for Preheating Main Boiler Superheater Headers.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Reid,Alan ; Phillips,Wendell C , Jr

Report Date : 01 Nov 1977

Pagination or Media Count : 6

Abstract : An apparatus and process for preventing thermal shock caused by the introduction of steam into a superheater header by preheating the header with an electrical heating element located on the header before boiler light-off and the introduction of any steam. A temperature sensor located on the header controls the coupling of the heating element to its voltage source to maintain the temperature of the header within a predetermined range. (Author)

Descriptors :   *Patents, *Superheaters, *Boilers, Head(Fluid mechanics), Thermal shock, Steam, Temperature, Inlets, Electric heaters, Heating elements, Relays, Voltage

Subject Categories : Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE