Double valve anti-leak system for thermal regeneration incinerators
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United States of America Patent
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-
Feb 24, 1981
Grant Date -
N/A
app pub date -
Jun 27, 1979
filing date -
Jun 27, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a system for purifying effluents from industrial processes in which there are a plurality of sections containing heat-exchange beds communicating with a high temperature incineration zone, the flow of effluent through the beds and the direction of flow being controlled by inlet and outlet valves associated with each section, double valves in series are provided at the inlet and/or outlet to each section to reduce leakage of the effluents past them when in a nominally closed position so as to prevent release of noxious gases into the ambient air. Additionally, purified heated gas from the incinerator may be fed under pressure between the valves of each set to suppress the flow of noxious effluent past any of the valves when they are supposed to be closed.
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