Gas water heater and safety control method and system therefor
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United States of America Patent
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Sep 15, 2020
Grant Date -
Jun 27, 2019
app pub date -
Feb 28, 2019
filing date -
Aug 31, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention provides a gas water heater, and a safety control method and system therefor. The system includes: an exhaust fan; a rotational speed detecting unit, configured to detect a rotational speed of the exhaust fan; a power obtaining unit, configured to obtain a set value for output power of the exhaust fan; a rotational speed difference obtaining unit, configured to obtain an actual value of the rotational speed and a reference value of the rotational speed according to the set value for the output power, and to calculate a difference between them; and an exhaust control unit, connected to the exhaust fan, the rotational speed detecting unit, the rotational speed difference obtaining unit and the power obtaining unit respectively, configured to correct a predetermined wind pressure curve graph at an air outlet of the exhaust fan according to the difference.
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