IIIC QuFu RongBang Traffic Technology Co.,Ltd , https://www.rongbang.ltd
Explain the excellent performance of SF6 online leak alarm system in many aspects
SF6 online leak alarm system is an intelligent gas alarm system that detects the environmental data of SF6 concentration, oxygen content, temperature and humidity, etc., and makes control and alarm through a large amount of data analysis and processing. SF6 monitoring mainly uses electrochemical technology, electrical breakdown technology and infrared spectrum absorption technology.
1. Electrochemical technology: The principle of electrochemical technology is that the detected gas contacts the surface of the catalyst at a high temperature of about 200 ° C, and a corresponding chemical reaction occurs with it, thereby causing a change in the electrical signal to discover the detected gas.
2. Electrical breakdown technology The electrical breakdown technology evolved from the typical application of SF6 in electricity-as an insulating gas application in a GIS switchgear. Its working principle is to judge whether the air contains SF6 gas from the change of the voltage between the high-voltage electrodes placed in the air to be tested according to the characteristics of SF6 gas insulation.
3. Infrared spectrum absorption technology The principle of infrared spectrum absorption technology (also called laser technology) is that SF6 is a greenhouse gas and has a very strong absorption characteristic for infrared light in a specific band.
Product performance of SF6 online leak alarm system:
1.Advanced test principle
The system uses the principle of sound velocity to quantitatively and in real-time measure the SF6 leakage gas content. It overcomes the traditional traditional measurement methods such as negative corona discharge method and halogen sensor method which can only qualitatively determine whether the limit is exceeded or not, and can accurately obtain the SF6 content in the gas.
2.High reliability
The system uses a double differential processing method, which effectively overcomes the influence of temperature and humidity on the measurement results and eliminates the defects of traditional products.
3.Curve analysis function
The monitoring software can analyze the change trend of SF6 gas content in a curve, which can effectively grasp the status of the operating equipment and truly play an early warning role, which is also impossible for traditional qualitative products.
4.Multiple detection function
It mainly detects SF6 gas leakage and anoxic conditions, and has the auxiliary detection function of environmental data such as temperature and humidity, which meets the requirements of the "Safety Regulations of the Electrical Industry".
5. Early scene alarm technology
Trace detection technology can issue early on-site alarms and indicate the location of gas leaks, promptly notify personnel in dangerous locations to evacuate, find and eliminate leak sources, and protect operating equipment.
6. Fieldbus design
One cable connects all the collectors and hosts, which can be separated and combined, and has high field adaptability.
7. Multi-point networking detection
Zui multi-point detection at 128 points simultaneously to meet the needs of the scene environment and improve detection reliability.
8.Telemetry, remote control
There is a standard interface outside the system. The data can be transmitted to the remote control center through the RTU. The control center can also directly remotely query and control the system to achieve telemetry and remote control functions.
9.Monitoring software
Optional, with data configuration, graphic configuration, curve analysis, data reporting, historical data query and other functions.
10.Long-life design
Fully utilize the working flexibility of the single-chip microcomputer, the sensor adopts intermittent working measurement, which greatly improves the working stability and service life of the sensor.
11. Historical data recording and query
The host is equipped with a large-capacity data storage, which can store 2 years of data, and can be quickly inquired through peripherals such as notebook computers.
12.Infrared monitoring function
Optional, the detection staff enters the working range, and the automatic voice prompts the real-time detection results to enhance the intuitive feeling of the field staff.
13.Maintenance-free design
Dedicated electrical design, the whole machine has no adjustable components, high-level components are selected, and excellent anti-interference performance.