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Title:
SYSTEM FOR PRODUCTION OF WATER VAPOR WITH HIGH PRESSURE AND TEMPERATURE LEVEL
Document Type and Number:
Japanese Patent JPH01203802
Kind Code:
A
Abstract:

PURPOSE: To obtain a system for producing water vapor with high pressure and temperature levels overcoming restrictions which exist in the current boiler designs by feeding a boiler with low quality fuel and/or fuel which is highly corrosive at high temperatures for a first phase of water heating and feeding conventional fuels to a superheating-reheating installation to raise the temperature of the water vapor for a second phase of heating.

CONSTITUTION: Natural gas, gas oil, fuel oil, coal and the like are fed to a heating unit 1 equipped with a series of burners 2 via a duct 3. The unit 1 includes a superheating unit 4, through which water vapor produced in a first phase of heating, that is, water vapor obtained by a boiler using problematic fuels, is circulated. Water vapor produced in the first stage of heating process enters an inlet 5 of the superheating unit, and water vapor heated to high- temperature level is obtained at the outlet 6 thereof. The unit 1 also includes a vapor-re-heating unit 7, and these units can be also provided with a second series of burners 9 and fed with fuels via the same supplying duct 3.


Inventors:
RUISU FUIKA MAAKUINE
Application Number:
JP1988000326414
Publication Date:
August 16, 1989
Filing Date:
December 26, 1988
Export Citation:
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Assignee:
SENER ING & SIST
International Classes:
F22B35/00; F22B31/04; F22G1/16; (IPC1-7): F22B31/04; F22B35/00
Domestic Patent References:
JPS60155291A1985-08-15
JPS59215503A1984-12-05
JPS57164202A1982-10-08