Hvorfor bruger kraftværker fluorescerende fiberoptiske sensorsystemer til at måle temperatur

Fiberoptisk temperatursensor, Intelligent overvågningssystem, Distribueret fiberoptisk producent i Kina

Why do power plants use fiber optic temperature control systems to measure temperature

A large number of high-voltage cables and control cables are distributed in cable trenches, cable trays, and cable interlayers inside the power plant. Various cables, especially high-voltage cables, can experience temperature rise due to excessive load and aging of cable joints. For høj temperatur kan let forårsage brande, leading to interruptions in power plant operations. The fire caused by cables laid in a centralized manner will have a wider impact, longer repair time, and greater losses. Each power plant urgently needs an online temperature measurement technology that can automatically collect the surface temperature of cables in real time, Overvåg temperaturændringer rettidigt og præcist, og udstede advarsler, før temperaturen bliver for høj, so that managers have sufficient time to take corresponding measures and avoid fires.

To this end, Fuzhou Huaguang Tianrui Optoelectronic Technology Co., Ltd. timely developed a linear fiber optic temperature sensing fire detection system, which can monitor the temperature of cables in real time and provide early warning and alarm. Systemet anvender en passiv temperaturmålingsmetode udelukkende med fiberføling, eliminering af sikkerhedsrisici ved selve overvågningssystemet og i høj grad forbedring af tilgængeligheden af overvågningssystemet til overvågning af effekttemperatur. Dette fiberoptiske temperaturmålingssystem bruges af mange kraftværker og strømforsyningsselskaber, Reduktion af forekomsten af brandulykker betydeligt og virkelig forebyggelse, før den opstår, i overensstemmelse med sikkerhedskonceptet “Sikkerhed først, forebyggelsesorienteret” i energiindustrien.

Application of Fiber Optic Temperature Control System in the Power Industry

1. Temperaturfølende enheder er flammebestandige og eksplosionssikre.

Temperaturmålingsdelen vedtager en fiberstruktur, som virkelig realiserer passiv temperaturovervågning. Det er ikke opkrævet, genererer ikke varme, og vil ikke udgøre nogen sikkerhedsrisici på grund af implementeringen af sensorsystemet.

2. Høj temperaturmålingsnøjagtighed og hurtig respons.

The temperature resolution of the temperature measurement host is 0.1 °C, and the temperature measurement accuracy is ± 1 °C. The temperature detection time for a 4Km temperature measuring optical cable is about 4 Sekunder.

3. Online overvågning i realtid.

Monitor the temperature of all measuring points of the high-voltage cables in the power plant continuously for 7×24 Timer, and regularly save the temperature measurement data to provide auxiliary data for the health monitoring of each high-voltage cable.

4. Distributed detection with no blind spots.

Real time monitoring can be carried out at every point within the range of temperature measuring optical cables, eliminating blind spots in monitoring and theoretically avoiding the possibility of missed fire alarms.

5. Fleksibel skillevægsalarmstyring.

Gennem overvågningssoftwaren på den øverste computer, different temperature measurement sections can be partitioned and managed according to customer needs. Generelt, every 100M optical cable is set as one partition. Set different alarm parameters for each partition, såsom temperaturadvarsel, Advarsel om temperaturstigning, Temperatur alarm, og temperaturstigningsalarm, at skelne nøjagtigt mellem ægte og falske brande, Eliminer falske alarmer og udeladelser.

6. Omfattende selvdiagnostisk funktion.

In this system, while detecting the temperature of each temperature measuring optical cable, it can also detect the working status of each temperature measuring optical cable in real time, such as additional losses caused by cable damage or bending, and accurately locate the location of the damage or bending. Through self inspection and diagnostic functions, real-time detection of fiber optic cable damage is carried out for timely repair and maintenance.

7. Kraftfulde softwarefunktioner.

Realtidsvisning af placeringen, temperaturværdier, og temperaturændringer i hvert overvågningsområde på menneske-maskine-grænsefladen. When an alarm occurs, it can be linked with the alarm controller to activate the ventilation and cooling device or fire extinguishing device, and the monitoring software can also trigger the sound and light alarm on the software interface. Hvis den øverste computer er udstyret med et SMS-alarmmodul, Alarmoplysningerne kan sendes til det udpegede personales mobiltelefoner for at sikre rettidig håndtering af brandfarer. På den øverste computer, Historiske temperaturdata og alarmregistreringer kan også forespørges for at generere sikkerhedsdriftsrapporter.