Hanvy - Fire Monitoring and Warning System for Circular Coal Yard

The most direct effect of spontaneous combustion of coal pile is to burn down coal property and waste resources.Secondly, spontaneous combustion produces a large amount of acidic oxide harmful gas, which endangers the personal safety of site workers and causes secondary air pollution to the whole plant.Coal spontaneous combustion volatilizes flammable gas, when the water will produce a large number of water gas deflagration, great harm.By monitoring the temperature of circular coal field, we can find out the hidden danger of spontaneous combustion of coal pile as early as possible, and it is an effective means to ensure the safe operation of circular coal field.

Significance of distributed optical fiber temperature monitoring:

Due to the special structure of the circular coal yard, spontaneous combustion of the coal yard mostly occurs near the coal retaining wall. In addition, the circular coal yard has a relatively large space and a relatively harsh operating environment. Traditional monitoring methods have been unable to meet the requirements, and its temperature monitoring requires linear distribution Optical fiber measurement method.

Distributed optical fiber temperature measurement system DTS (also known as linear optical fiber temperature-sensing fire detector) is an internationally advanced linear temperature measurement technology, which can realize real-time temperature measurement along the optical fiber, find hot spots in time, prevent accidents "Burning" is of great significance to ensure the safe operation of large industrial and mining enterprises.

Solution:

The distributed optical fiber temperature sensing technology is adopted, and the temperature sensing optical fiber is arranged at the bottom and the side walls of the circular coal field to monitor the temperature and the fire situation in real time, so as to discover the potential danger of spontaneous combustion and to eliminate the dangerous situation with the linkage fire alarm equipment in time.Optical fiber temperature measurement technology is inherently safe and sensitive, which can not only measure the temperature of the coal field, but also accurately locate the abnormal temperature position, which is convenient for the workers to quickly eliminate hidden dangers.
Using distributed optical fiber temperature measurement system to monitor circular coal yard has the following benefits:

Real-time distribution of the distributed temperature of the wall of the circular coal yard, and the measurement coverage area is wide;

The hot spot was found in time, and an alarm signal is automatically issued;

Change from manual inspection to real-time monitoring of automated process status.