Heat exchange – Structural installation
Patent
1977-04-22
1978-09-12
Myhre, Charles J.
Heat exchange
Structural installation
122 7A, 122 7R, F22D 116
Patent
active
041130057
ABSTRACT:
A waste heat recovery system which can be attached to, and made part of, an existing thermal oxidizer-stack system, at minimum cost, without reducing the reliability of the existing oxidizer-stack system. It comprises a conventional heat transfer means, which is connected at its input through a refractory lined first conduit, to an opening through the wall of the first stack of the thermal oxidizer-stack system. The outlet of the heat exchanger is connected through a second conduit to an induced draft means, which can be a conventional blower, the outlet of which is connected to a second stack. The action of the induced draft blower is to cause inflow of hot stack gases through the first conduit and through the heat exchanger and to pass the cooled stack gases out the second stack. A first temperature sensor is placed in the stack between the inlet from the thermal oxidizer and the opening where the gases are drawn into the first conduit. A second thermal sensor is placed in the first conduit. A differential temperature controller is provided responsive to the first and second thermal sensors and the rate of flow of hot gases to the waste heat recovery system is controlled by the differential temperature.
REFERENCES:
patent: 1050134 (1913-01-01), Hegeler
patent: 1707964 (1929-04-01), McKelvy et al.
patent: 2060290 (1936-11-01), Ebner
patent: 3395512 (1968-08-01), Finney et al.
John Zink Company
LaTulip Margaret A.
Myhre Charles J.
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