Air supply assembly for hydraulic turbine governor oil pressure device

• Main Authors: GAO YANG, WANG JIAN, WANG JIE, SHU QIANG, XIE JUNHAI, HU YONGQIN, JIANG YI
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The utility model relates to the technical field of air supply of speed regulators, in particular to an air supply assembly for an oil pressure device of a speed regulator of a water turbine, which comprises a switching value control assembly, an automatic air supply valve and a PLC (programmable logic controller), and the PLC is used for starting the switching value control assembly to control the automatic air supply valve to open or close; the system further comprises an analog quantity control assembly, and the PLC is further used for starting the switching value control assembly to control the automatic gulp valve to be opened or closed. According to the scheme, double-channel redundancy control is adopted, and the automatic gulp valve assembly is communicated with the switching value control channel through the valve switch to form a first channel or is communicated with the analog quantity control channel to form a second channel. According to the scheme, gas accounts for 2/3 of the pressure tank all t