Low-temperature economizer, heat supply network drainage and main engine circulating water combined operation system under cylinder switching working condition

The utility model discloses a low-temperature economizer, heat supply network drainage and main machine circulating water combined operation system under the cylinder cutting working condition. According to the main technical scheme, the system comprises a deaerator; the unit heat supply network com...

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Hauptverfasser: XU XIAODONG, ZHANG QI, LI RANSHENG, LI JUN, MENG HAO, LIU GUIXI, KUNITSUGU, SATOSHI, ZHANG HONGYUAN, ZHI HUI, ZHANG FEIFEI, DU WEI, WANG MAOLIN, FU XILIANG, WINZIE, ZHAO KAI, YIN JUN, TIAN ZHIFEI, SUN LI, HOU JIANJUN, HE CHUAN, LIU XING, GE YINHAI, YUAN HONG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The utility model discloses a low-temperature economizer, heat supply network drainage and main machine circulating water combined operation system under the cylinder cutting working condition. According to the main technical scheme, the system comprises a deaerator; the unit heat supply network comprises a steam turbine intermediate-pressure cylinder, and a heat supply network heater and a low-pressure heater which are connected with the steam turbine intermediate-pressure cylinder; the flue gas heat exchange device comprises a first heat exchanger, a second heat exchanger and a low-temperature economizer; a water inlet of the first heat exchanger is connected with the heating network heater; a water outlet of the first heat exchanger is connected with the low-pressure heater; a hot coal water inlet of the first heat exchanger is connected with a hot coal water outlet of the low-temperature economizer through a first control valve, and a hot coal water inlet of the second heat exchanger is connected with the