Heat supply control system capable of utilizing dead steam waste heat of small steam turbine and control method thereof

• Main Authors: YANG ZHIJIA, LIN XUHONG, FAN JIANKU, HE ZHI, WANG FENG, LIU PINGSHENG, ZHANG ZHONGHUA
• Format: Patent
• Language: Chinese; English
• Published: 06.04.2021
• Subjects: BLASTING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELEMENTS OR COMPONENTS THEREFOR; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; RANGES; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; VENTILATING; WEAPONS

The invention relates to a heat supply control system capable of utilizing dead steam waste heat of a small steam turbine and a control method thereof. The heat supply control system comprises a low-pressure cylinder steam inlet butterfly valve, a heat supply butterfly valve, a heater steam inlet butterfly valve, a driving steam regulating valve and a DCS controller, wherein the low-pressure cylinder steam inlet butterfly valve is arranged on a steam exhaust pipeline, and the steam exhaust pipeline is connected with a heat supply steam extraction pipeline; the heat supply butterfly valve is arranged on the heat supply steam extraction pipeline; the heater steam inlet butterfly valve is arranged on the heat supply steam extraction pipeline, and the water supply end of a heating network heater is connected with the water inlet end of a heat supply network through a water supply pipeline; the driving steam regulating valve is arranged on a driving steam pipeline; the steam suction end of an absorption heat pump