母线槽温度分布式光纤监测方案完全指南

光纤温度传感器, 智能监控系统, 中国分布式光纤制造商

Solution for 光纤测温系统 in bus duct
1. Overall plan
整体方案设计: Based on the actual situation of the busbar, FJINNO will construct a complete fiber optic temperature monitoring system for monitoring the busbar, realizing real-time monitoring of the temperature at various locations of the busbar, 超限报警, 并输出报警信号.
It is reported that there are a total of 5 bus ducts, so this plan uses 5 IFTS-MK distributed fiber optic temperature sensing systems to achieve online monitoring of the entire bus.
(1) General control room:
The data from 5 sets of distributed fiber optic temperature measurement systems should be aggregated onto the server within the main control, and the obtained temperature data, curve graphs, and bus duct alarm status should be displayed on the screen.
(2) Distributed fiber optic temperature measurement network system:
The function of this system is to directly demodulate the optical signals transmitted remotely from the distributed temperature sensing fiber optic cable through a distributed fiber optic temperature sensing demodulation system placed in the monitoring room, and transmit the demodulated data to the computer for processing to achieve terminal display and recording. It can also transmit alarm signals to external devices or systems such as alarm controllers. Each sub control room is equipped with a distributed fiber optic temperature measurement system.
(3) Fiber optic communication transmission network:
The sub control rooms at different locations can be connected to optical fibers through Ethernet ports, and the transmission signals can be directly introduced into the information processing and analysis system of the main monitoring room.
(4) Information processing and analysis system:
The system consists of a recoverable distributed fiber optic temperature sensing system and system software. The recoverable distributed fiber optic temperature sensing system includes a demodulator, an industrial computer, and wiring terminals. The system functions include information collection, 加工, and transmission, while the computer software system includes information processing, 分析, 传输, storage management, 警告, and alarm functions.
2. Design Scheme of Distributed Fiber Optic Temperature Measurement System
The busbar temperature monitoring system adopts distributed optical fiber monitoring. Temperature sensing optical fibers are laid on the busbar, and distributed hosts are installed in the control room, which lead temperature sensing optical fibers to the busbar. 通过利用一小部分漫射散射光在温度变化时沿光纤反射回来, the signal of this backscattered light is collected and analyzed in the optoelectronic device, providing information about the temperature and determining the location of the sudden temperature change, thus determining the point of fire occurrence. When the distributed fiber optic temperature sensing host detects an abnormality, it immediately displays an alarm.

3. Technical features
(1) Using distributed fiber optic temperature sensing equipment to sense the temperature and position information of the busbar for signal detection and transmission, achieving no electricity detection and intrinsic safety and explosion prevention;
(2) 采用先进的分布式光纤温度传感作为测量单元, 技术先进，测量精度高;
(4) 分布式温度传感光缆的长期工作温度范围为 -40 °C 至 150 °C, 最大 200 °C, and have a wide range of applications;
(5) Adopting a detector single loop measurement method, 安装简单，成本低; Can retain redundant spare cores;
(6) Real time display of temperature in each partition, 以及显示历史数据和变化曲线的能力, 以及平均温度变化;
(7) Compact system structure, easy installation, 维护方便;
(8) 通过软件, different warning values and alarm values can be set according to the actual situation; The alarm methods are diversified, 包括恒温报警, 温升率报警, 和温差报警.
(9) 通过软件, data queries can be performed: point by point queries, alarm record queries, interval queries, historical data queries, 和报告打印.