Title:
BLOWER PROTECTION METHOD
Document Type and Number:
Japanese Patent JP2529071
Kind Code:
B2
Abstract:
PURPOSE: To inexpensively resolve the problem of surging of blower at starting by continuously supplying coolant gas when the exhaust gas temperature of an incinerator at starting is lower than a temperature set lower than a heat- resisting temperature of filter.
CONSTITUTION: The temperature of exhaust gas having passed a cooler 4 is measured with a thermometer at starting and whether this is below the set temperature is judged. The set temperature is set lower than the heat-resisting temperature of a secondary filter 5. As the result of the judgment while the measured exhaust gas temperature is lower than the set temperature, it is judged the starting state of an incinerator is continued and a valve 12 is opened fully for example, to supply a determined amount of air. When the measured exhaust gas temperature exceeds the set temperature for the first time, the completion of starting is judged and by switching to the normal feedback control, the valve 12 is controlled so that the exhaust gas temperature measured with the thermometer 11 becomes the set temperature. When the incinerator becomes the state of operation completion, the feedback control is terminated.
Inventors:
Shibata, Minoru
Application Number:
JP1877593A
Publication Date:
August 28, 1996
Filing Date:
February 05, 1993
Export Citation:
Assignee:
NGK INSULATORS LTD
International Classes:
B09B3/00; F23J15/00; G21F9/02; (IPC1-7): G21F9/02; G21F9/02; B09B3/00; F23J15/00
Attorney, Agent or Firm:
杉村 暁秀 （外５名）
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