Heat supply unit heating steam extraction system coupled with low-pressure bypass

• Main Authors: WANG LI, FU QIANG, ZHANG JINGHONG, LI ZHIQIANG, GAO JILU, LIU JIANPING, YAO JUPENG, LYU DAOXIN, CHEN XIAOLI, ZHENG FEI, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 03.11.2020
• Subjects: BLASTING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELEMENTS OR COMPONENTS THEREFOR; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses a heat supply unit heating steam extraction system coupled with a low-pressure bypass. The system comprises a heating steam extraction main pipe, a heating steam extraction branch pipe, a reheating steam input pipe, a steam recovery pipe, a three-stage temperature and pressure reducer, a condenser, a manual isolation valve, a first electric isolation valve, an electric pressure adjusting valve, a second electric isolation valve, a third electric isolation valve, a desuperheater and a desuperheating water input pipe. The invention discloses an electric desuperheating water isolating valve and an electric desuperheating water flow adjusting valve. The operation method of the heating steam extraction system comprises the steps that during deep peak shaving, the third electric isolation valve is closed, the manual isolation valve, the first electric isolation valve, the second electric isolation valve and the electric pressure adjusting valve are opened, and the desuperheater is started un