Характеристики системы обнаружения пожара с температурной решеткой Брэгга

The necessity of using fiber optic temperature measurement system in fire warning system

With the continuous development of urbanization, there are more and more cables and high-voltage switchgear in power grid construction, and the probability of faults is also increasing. According to fault statistics, it was found that the failure rate of cables and switches has been increasing year by year. Более того, most fire accidents are caused by high temperatures. Поэтому, before a fire occurs, timely and accurate monitoring of temperature changes in cables and switchgear and issuing alarms allows users sufficient time to take corresponding measures, which is particularly important for avoiding accidents or causing fires. Однако, the current main use is traditional temperature measurement systems, where the detection points of the sensor distribution are intermittent, and only the points in contact with the detection probe can be detected. The detection range is small, and the detection signal output is a weak electrical signal, which is highly susceptible to electromagnetic interference; Using circuits as signal channels requires particularly high insulation requirements for high-voltage equipment, затрудняет обслуживание и ремонт. Not suitable for comprehensive testing of temperature systems.

Fiber Bragg Grating Temperature Sensing Fire Detection System

Fiber optics have been widely used in automatic fire detection системы, especially in narrow spaces such as tunnels and comprehensive pipe galleries. Однако, благодаря постоянному совершенствованию традиционных методов контроля, которые фокусируются только на характеристиках простоты конструкции и установки в пространстве, and neglect the importance of temperature detection systems in monitoring, this has led to inconvenient monitoring, высокие затраты на техническое обслуживание, и даже паралич системы из-за длительного выхода из строя, создавая пожарную опасность для жизни людей. To address the aforementioned deficiencies in existing technologies, FJINNO has made significant breakthroughs in the structure of its fiber optic fire warning system products, effectively addressing the aforementioned issues.

1. Being able to accurately locate the exact location of temperature changes and achieve precise positioning, a precise fiber optic linear temperature detection system is formed, which integrates computer, оптоволоконная связь, оптоволоконное зондирование, оптоволоконная передача, optoelectronic control and other technologies. Based on the temperature measurement principle of fiber optic backscatter with temperature changes, OFDR advanced technology is used to monitor the feedback information on the fiber optic in real time through temperature sensing optical cables, measure the temperature changes at various points on the fiber optic, and monitor the temperature status of the detected area in real time;

2. Подходит для мониторинга на большом расстоянии, система очень проста и надежна, не требует обслуживания, and extremely convenient to install. Его можно подвешивать и укладывать по прямой, не влияя на установку и расширение нового оборудования.;

3. Длительный срок службы, intrinsic safety of optical fiber, отсутствие электромагнитных помех, комплексное интеллектуальное суждение без ложных тревог, and it is not charged, suitable for special dangerous situations.

Оптоволоконный датчик температуры, Интеллектуальная система мониторинга, Распределенный производитель оптоволокна в Китае