HOT-AIR HEATER FOR GREENHOUSE HORTICULTURE AND COOLING CONTROL METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a hot-air heater for greenhouse horticulture capable of optimally controlling the cooling operation of a heat exchange part according to the size of a greenhouse heating load by a simple control method, and capable of reducing the cost at the same time; and to provid...

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Hauptverfasser:	YAMAGUCHI HIROMITSU, ARITOME DAISUKE, SHIKAKURA HIDEFUMI, TAKASAKI YUKUTADA
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR FISHING FORESTRY HEATING HORTICULTURE HUMAN NECESSITIES HUNTING LIGHTING MECHANICAL ENGINEERING RANGES REGULATING OR CONTROLLING COMBUSTION TRAPPING VENTILATING WATERING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a hot-air heater for greenhouse horticulture capable of optimally controlling the cooling operation of a heat exchange part according to the size of a greenhouse heating load by a simple control method, and capable of reducing the cost at the same time; and to provide a cooling control method thereof.SOLUTION: The hot-air heater 100 for greenhouse horticulture includes: the heat exchange part 110 having a combustion chamber 111 and a fire tube part 112; a burner 120 for burning a fuel inside the combustion chamber 111; a blower 130 for feeding hot air into a greenhouse by the heat exchange in the heat exchange part 110; and a control board 140. In cooling the heat exchange part 110, a control part 141 inside the control board 140 measures the burning time of the burner 120, determines a heating load condition predetermined according to the measured burning time of the burner, selects one cooling time based on the determined heating load condition from a plurality of cooling times predetermined according to the heating load conditions, and operates the blower 130 according to the selected cooling time.