Protection system for heat pipe airheaters

Details Protection system for heat pipe airheaters Protection system for heat pipe airheaters

1991-10-07

1992-07-21

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165100, 1651341, 165909, 432179, 122DIG1, F28D 1502, G05D 2300

Patent

active

051314576

ABSTRACT:
A plant having a combustion chamber can employ at least one heat pipe. The heat pipe is mounted to exchange heat between flue gas in a flue gas path and combustion air in a combustion air path. A protection system has a dual passage for separately conducting the flue gas and the combustion gas. The dual passage has a wall separating the flue gas path from the combustion air path. The heat pipe is mounted through the wall. A sensor is mounted about the heat pipe for providing a temperature signal signifying the temperature at the heat pipe. A damper is coupled to the sensor and communicates with the dual passage for mixing relatively cooler air with the flue gas in the dual passage, upstream of the heat pipe, in response to the temperature signal violating a predetermined limit.

REFERENCES:
patent: 3968787 (1976-07-01), Basiulis
patent: 4129176 (1978-12-01), Heyn et al.
patent: 4245147 (1981-01-01), Cummings et al.
patent: 4299272 (1981-11-01), Bagno
patent: 4426959 (1984-01-01), McCurley

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