Hefei Tuwa Technology Co., Ltd.

State Grid Anhui Electric Power Research Institute

State Grid Corporation of China

Dalian University of Technology

State Power Economic Research Institute

Yu Tian

Liang Zhang

Lei Xie

Wei Li

Rui Liu

Yi Guo

Jiaqing Zhang

Dengfeng Cheng

Jia Xie

Yubiao Huang

Fengju Shang

Liufang Wang

Jun Yi

Yue Zhao

Sha Luo

Yifu Zhou

Fengxiang Ma

Minghao Fan

Jing Tan

Yanguo Ke

Shengli Song

Pengcheng Yang

Wen Su

Yong Huang

Feng Zhu

Chen Hang

Min Guo

Xiaofang Yuan

Yabin Ma

Ke Chen

Disclosed are a fire extinguishing system and method for an ultra-high voltage (UHV) converter station, and a UHV converter station. The fire extinguishing system includes a spray fire extinguishing system and a fire monitor-based fire extinguishing system, where the spray fire extinguishing system includes a first fire pipe and a spray pipe; the fire monitor-based fire extinguishing system includes a second fire pipe and a fire monitor; one fire monitor is disposed right above a firewall on both sides of each converter transformer in the UHV converter station, and each fire monitor is connected to one second fire pipe; a spray pipe is disposed on the firewall on both sides of each converter transformer; and the fire monitor corresponding to each converter transformer, and an outlet of the spray pipe connected to the first fire pipe corresponding to each converter transformer face the converter transformer.

Fire extinguishing system and method for ultra-high voltage (UHV) converter station, and UHV converter station

Controller for content editing

An operation control method suitable for a fire extinguishing system of an extra-high voltage converter station is provided. The method includes: after an upper computer control system receives a sound-light alarm signal, an alarm position signal, and a switch position dividing signal, starting a spray range prediction analysis subsystem for a fixed fire monitor; determining, by the spray range prediction analysis subsystem for the fixed fire monitor based on an external wind direction and an external wind speed, whether a range of a fire monitor effectively covers an entire area of a converter transformer; and if yes, automatically presetting a first fire monitor to which a first compressed air foam generation subsystem belongs and a second fire monitor to which a second compressed air foam generation subsystem belongs; or if no, replacing a fire monitor with a mobile fire-fighting robot to extinguish a fire.

Operation control method suitable for fire extinguishing system of extra-high voltage converter station

Controller

The present disclosure relates to the technical field of fiber-optic gas sensing and laser photoacoustic spectroscopy, and reliability of a gas detection system is improved by actively selecting a working frequency of low noise interference combined with an optical fiber photoacoustic sensing probe capable of isolating high-frequency noise. A gas enters a photoacoustic microcavity through gaps on a sound-sensitive diaphragm after diffusing into a miniature air chamber through a plurality of micropores. Photoacoustic excitation light is incident into the photoacoustic microcavity through a fiber-optic collimator and then excited to generate a photoacoustic pressure wave to cause the sound-sensitive diaphragm to vibrate periodically. An end face of a single-mode optical fiber and the sound-sensitive diaphragm constitutes a fiber-optic Fabry-Perot interferometer. The interferometer measures a deflection of the diaphragm and inverts a concentration of the to-be-measured gas.

Fiber-optic photoacoustic sensing probe capable of resisting interference from ambient noise, and sensing system

Growing community of inventors

Anhui, China

Yu Tian