Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1986-03-19
1988-10-04
Cintins, Ivars
Gas separation
Means within gas stream for conducting concentrate to collector
B01D 4600
Patent
active
047753978
ABSTRACT:
A method of air recirculation and air makeup for a nuclear reactor control room practiced with air supply apparatus having an alternate purification loop (84) in parallel with a portion of the recirculation loop (26). In the alternate purification mode of operation of the system a predetermined portion of the recirculated air is drawn through the purification loop (84) in parallel with a flow of the remainder of the recirculated air through the normal parallel recirculation flow path (86). The volume of air drawn through the purification path (84) is established to maintain the purification loop operating at its maximum efficiency. A makeup air supply loop (24) having a normal flow path (42) and an alternate, parallel filtration flow path (50), communicates with the recirculation loop (26). The amount of air inputted to the makeup loop (24), supplied through the makeup loop (24) to the recirculation loop (26), and drawn through the filtration path (50) are controlled, in the alternate filtration mode of operation, to establish a counter flow of air in the normal makeup flow path (42) so that none of the makeup air supplied to the recirculation loop (26) bypasses the filtration path (50).
REFERENCES:
patent: 3870033 (1975-03-01), Faylor et al.
patent: 3964887 (1976-06-01), Hickey et al.
Cintins Ivars
Diamond H.
Westinghouse Electric Corp.
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