The environment and equipment monitoring subsystem detects and alarms the environment parameters in the pipe corridor. The content of environmental parameter detection is as follows. The setting of the gas alarm value complies with the relevant provisions of the national standard GBZ/T205 "Code for the Protection of Occupational Hazards in Confined Space Operations".

According to the requirements of the code, a safety escape hole for the personnel, a feeding port, a vent, a fire door and a personnel entrance and exit should be provided every 200 meters along the length of the pipe corridor.

By installing monitoring sensors such as gas (O2, CH4, H2S), temperature, humidity, smoke, water level, and water immersion at the entrance and vent of each fire compartment, automatic control and docking with fans and pumps can be achieved. The detection signal is transmitted to the integrated management and control zone station nearby and sent to the monitoring center computer via Ethernet. On the display screen of the control room of the monitoring center, the gas (O2, CH4, H2S), temperature, humidity, smoke, water level and other data of each fire compartment are displayed in digital form.

According to the requirements of the "Technical Specification for Urban Municipal Comprehensive Pipe Corridor" as follows:

Each integrated pipe corridor fire partition is designed with an environmental monitoring system, including: 

• 2 temperature and humidity sensors, 1 water level sensor, 2 oxygen sensors, 2 hydrogen sulfide sensors, 2 methane sensors, integrated display function.
• Temperature, humidity, oxygen, hydrogen sulfide, and methane sensors are installed near the sides of the fire door (close to the location of personnel access).
• The water level sensor is installed in the sump and integrates a local display device.
• 4 subsidence monitoring sensors provide standard modbusRTU interface.

 

The connection diagram of the environment and equipment monitoring subsystem is as follows:

 

 

 

 

 

 

Equipment monitoring >>>

Collect data on instruments and equipment such as drainage pumps, lighting, fans, air duct valves, infrared intrusion alarm devices, ambient temperature, humidity and oxygen detection instruments arranged in each fire compartment. Monitor the upper limit alarm signal of the water level in the water collection well. Transfer to the unified information management platform through the corresponding multi-functional integrated management and control zone station. At the same time, the multi-functional integrated management and control zone station accepts the command of the monitoring center to realize the remote control of the start and stop of the fan and the control of the lighting equipment in the corresponding fire zone.

The schematic diagram of the device monitoring connection is as follows:

 

 

 

 

ACU model and equipment configuration list >>>