EXHAUST HEAT RECOVERY EQUIPMENT

PROBLEM TO BE SOLVED: To provide exhaust heat recovery equipment that can offer an environment proper for its maintenance and inspection. SOLUTION: A exhaust gas boiler 2 is installed in the madde of a main gas flue 1 and an auxiliary gas flue 3 for emitting exhaust gas is connected upstream from th...

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Bibliographische Detailangaben
Hauptverfasser: KUMAGAI TAKESHI, FUJIKI HIROAKI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide exhaust heat recovery equipment that can offer an environment proper for its maintenance and inspection. SOLUTION: A exhaust gas boiler 2 is installed in the madde of a main gas flue 1 and an auxiliary gas flue 3 for emitting exhaust gas is connected upstream from the exhaust gas boiler 2. The main gas flue 1 has two first selector dampers 4 and 5 located between the connection to the auxiliary gas flue 3 and the exhaust gas boiler 2, and the auxiliary gas flue 3 has a second selector damper 6. An air supply pipe 8 opens between the first selector dampers 4 and 5 to lead fresh air of a pressure higher than that of exhaust gas in the main gas flue 1. For maintenance and inspection of the exhaust gas boiler 2, air is supplied between the first selector dampers 4 and 5 both closed to thereby prevent exhaust gas from flowing into the exhaust gas boiler 2.