| 摘要 |
The device for preventing the temporary stop of the boiler operation by detecting the strength of the reverse flow, comprises a guide housing for guiding the reverse flow induced from the exhaust duct; the reverse-flow detecting means for detecting the strength of the reverse flow by the moving distance of the plate; a control means for controlling the RPM of the motor in order to vary the RPM of the exhaust discharging fan according to the strength of the reverse-flow transmitted from the reverse-flow detecting means.
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