Heat exchange – Regenerator – Cleaning
Patent
1988-09-06
1989-04-25
Davis, Jr., Albert W.
Heat exchange
Regenerator
Cleaning
165 111, F28G 1300
Patent
active
048238619
ABSTRACT:
A regenerative air heater is comprised of a matrix of heating surface elements contained in a compartmented housing with heat transfer being effected by alternately exposing the heating surface elements to hot gas and cooler air, thereby heating the exiting air stream. Un-burned products of combustion present in the gas may collect on the heating surface and, under certain operating conditions, ignite spontaneously in one or more local areas. In some instances, the local combustion can become severe enough to cause the heat transfer surface itself to burn, seriously damaging the heat exchanger. An elongated expansion element, made of a material having a high coefficient, of thermal expansion relative to the compartment structure, is used to sense the presence of a hot spot in any air heater compartment. The resulting thermal initiated expansion of the element activates a device to indicate the presence of a hot spot in the heat exchanger.
REFERENCES:
patent: 150566 (1874-09-01), Guest
patent: 440567 (1890-09-01), Hawke
patent: 2150142 (1939-03-01), Brace
patent: 3166119 (1965-01-01), Bellows
patent: 3183961 (1965-05-01), Brandt
patent: 3516082 (1970-06-01), Cooper
patent: 3730259 (1973-05-01), Wixson et al.
patent: 3731247 (1973-05-01), Levinn
patent: 3861458 (1975-01-01), Ostrander et al.
patent: 4019567 (1977-04-01), Wixson et al.
patent: 4022270 (1977-05-01), Stockman
patent: 4099165 (1978-07-01), Botnen
patent: 4176618 (1979-12-01), Hubert
patent: 4192372 (1980-03-01), Bellows
patent: 4356478 (1982-10-01), Muggli et al.
patent: 4383572 (1983-05-01), Bellows
Davis Jr. Albert W.
Edwards Robert J.
Marich Eric
Matas Vytas R.
The Babcock & Wilcox Company
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