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Title: Annular vortex combustor

Abstract

An apparatus for burning coal water fuel, dry ultrafine coal, pulverized l and other liquid and gaseous fuels including a vertically extending outer wall and an inner, vertically extending cylinder located concentrically within the outer wall, the annnular space between the outer wall and the inner cylinder defining a combustion chamber and the all space within the inner cylinder defining an exhaust chamber. Fuel and atomizing air are injected tangentially near the bottom of the combustion chamber and secondary air is introduced at selected points along the length of the combustion chamber. Combustion occurs along the spiral flow path in the combustion chamber and the combined effects of centrifugal, gravitational and aerodynamic forces cause particles of masses or sizes greater than the threshold to be trapped in a stratified manner until completely burned out. Remaining ash particles are then small enough to be entrained by the flue gas and exit the system via the exhaust chamber in the opposite direction.

Inventors:
 [1];  [2]
  1. Burtonsville, MD
  2. Camarillo, CA
Issue Date:
Research Org.:
DEPARTMENT OF NAVY
OSTI Identifier:
868352
Patent Number(s):
5123361
Assignee:
United States of America as represented by Secretary of Navy (Washington, DC)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  {A CARRIER GAS OR} AIR 
DOE Contract Number:  
AI22-87PC79660
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
annular; vortex; combustor; apparatus; burning; coal; water; fuel; dry; ultrafine; pulverized; liquid; gaseous; fuels; including; vertically; extending; outer; wall; inner; cylinder; located; concentrically; annnular; space; defining; combustion; chamber; exhaust; atomizing; air; injected; tangentially; near; bottom; secondary; introduced; selected; length; occurs; spiral; flow; path; combined; effects; centrifugal; gravitational; aerodynamic; forces; particles; masses; sizes; threshold; trapped; stratified; manner; completely; burned; remaining; ash; entrained; flue; gas; exit; via; opposite; direction; coal water; vertically extending; exhaust chamber; gaseous fuel; opposite direction; inner cylinder; outer wall; combustion chamber; flow path; flue gas; secondary air; combustion occurs; fine coal; vortex combustor; spiral flow; gaseous fuels; burning coal; aerodynamic forces; cylinder located; located concentrically; /110/431/

Citation Formats

Nieh, Sen, and Fu, Tim T. Annular vortex combustor. United States: N. p., 1992. Web.
Nieh, Sen, & Fu, Tim T. Annular vortex combustor. United States.
Nieh, Sen, and Fu, Tim T. Wed . "Annular vortex combustor". United States. https://www.osti.gov/servlets/purl/868352.
@article{osti_868352,
title = {Annular vortex combustor},
author = {Nieh, Sen and Fu, Tim T},
abstractNote = {An apparatus for burning coal water fuel, dry ultrafine coal, pulverized l and other liquid and gaseous fuels including a vertically extending outer wall and an inner, vertically extending cylinder located concentrically within the outer wall, the annnular space between the outer wall and the inner cylinder defining a combustion chamber and the all space within the inner cylinder defining an exhaust chamber. Fuel and atomizing air are injected tangentially near the bottom of the combustion chamber and secondary air is introduced at selected points along the length of the combustion chamber. Combustion occurs along the spiral flow path in the combustion chamber and the combined effects of centrifugal, gravitational and aerodynamic forces cause particles of masses or sizes greater than the threshold to be trapped in a stratified manner until completely burned out. Remaining ash particles are then small enough to be entrained by the flue gas and exit the system via the exhaust chamber in the opposite direction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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