Method and apparatus for managing steam systems
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United States of America Patent
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-
Nov 10, 1987
Grant Date -
N/A
app pub date -
Dec 27, 1983
filing date -
Dec 27, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A steam system management method and apparatus includes a condensate collection reservoir with a pilot operated, pressure actuated dump valve that has a quick, snap action fully open/fully closed mode of operation. The pilot operation of the dump valve is actuated by a very low voltage solenoid actuator powered by a thermal-electric generator which thermionically converts heat from the steam system directly to electricity. Condensate dumps are controlled by liquid level sensing switches positioned near the top and bottom of the reservoir and electrically connected to a relay logic that turns the solenoid on and off. Temperature sensors positioned in the steam system and adjacent the thermal-electric generator are utilized in combination with the thermal electric generator and a microprocessor to monitor the air content in the steam system and to open the dump valve to purge excess air from the steam system. A voltage converter and voltage regulator are provided to convert very low voltage output from the thermal-electric generator to a higher voltage necessary to operate the microprocessor, and management information output displays are provided to indicate valve status, modes of operation, quantities of condensate dumped, and failure alarm.
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