Application of Submersible Level Sensor in Urban Fire Fighting

Industrial Background

The development of urban fire protection is closely related to the modernization process of the city. With the rapid development of the cities and the dense growth of the population, the importance of urban fire safety has become increasingly prominent. As complex building structures such as high rise buildings, large commercial complexes,and industrial plants continue to emerge in cities, the risk of fire is also increasing. 

In urban fire fighting system, it is extremely important to ensure adequate and stable supply of firefighting water. Fire pools and water tanks are important storage facilities for fire water. Accurate level measurement monitoring acts key function on effective operation of firefighting system.

Industry issue

Traditional level measurement methods in the industry may has the problems such as low accuracy, untimely response, and insufficient reliability, which are difficult to meet the needs of modern urban fire fighting for efficiency, accuracy and reliability. To deal with the phenomenon, following two problems are facing,

1.Level monitoring：It is needed to monitor water tanks level of underground and the roof of high-rise building at fire stations, and transmit the level data to the Fire Command Center in real time. Therefore, the selected sensor should have the characteristics of anti-corrosion and long-term stability to adapt to the chemical additives that maybe contained in fire water.
2.Data processing：how to transmit sensor data to the monitoring platform in real time for fire command personnel to rapidly dispatch water supply vehicles or adjust supply strategies, and to ensure the effective configuration of fire fighting resources.

Solution

In response to the problems in the urban fire protection industry, we recommended customers to use submersible level sensor GLT500 to monitor and control liquid level of the water tanks. The product has the characteristics of high accuracy, small size, and good anti-corrosion because of stainless steel probe. With the display control instrument GPY119, the water level control function is realized. The pump is automatically started when the level is low, and automatically stopped when the level is high, so that the water level is always controlled at the optimal water level space. At the same time, the level information can be uploaded to the cloud platform through wireless module and realize data visualization management.

Solution Effect

1.Through real-time liquid level monitoring and alarm system, the Fire Department can quickly locate and resolve water shortages, which shortens the time from discovery to disposition, and saves valuable time to put out the fire.
2.Intelligent management enables the rational allocation and efficient use of fire water resources, reducing unnecessary waste.
3.The real-time monitoring system ensures the normal operation of fire-fighting facilities around the clock, improves the overall fire safety level of the city, and provide a more solid guarantee for the safety of life and property of citizens. 

Related Product Features

GLT500 submersible level transmitter adopts fully-welded technology,the contact part of the product don’t have sealing ring, which avoids water leakage because of sealing ring failure.The entire sensor is front mounted, which eliminates the problems of easy clogging of the liquid inlet hole where the sealing ring is installed. The diaphragm is easy to clean and the installation and maintenance are simple. The product is based on the Hydrostatic Principle,through laser resistance adjustment, digital compensation and other technical measures, the product is more stable and more precise, which can realize accurate liquid level measurement of fire protection water tanks. 

GPY119 display control instrument deals with liquid level data and realize onsite display and control function. The product is equipped with 4 relay outputs, can set high low level thresholds and control the low start and high stop action of the actuator to realize the height control of the water tanks and improve the control efficiency.

GRT102 wireless module, can transmit output signal of the sensor or control instrument to the cloud platform and APP through 4G network, which can realize data remote monitoring and abnormal data alarm. The message or email will be sent to related management personnel, and realize digital management goals to reduce human resource waste.