Instrument Introduction:

The A5085e trend curve display system is a supporting management software for the GC5085 coal mine specific chromatography workstation, newly developed by the Beijing East West Electronic Technology Research Institute based on years of rich experience in researching fire gases in the coal mine industry and the professional technical advantages of its own research team. It is designed to solve the problem that current coal mine safety production management personnel and supervision departments cannot fully grasp the changing trends of coal mine fire gases anytime and anywhere. The emergence of this system enables the exchange of safety information between coal safety supervision and management personnel, as well as management personnel outside the production site, and coal mines.

The A5085e system provides users with flexible real-time and historical curve displays Its powerful system functions and user-friendly interface enable safety production management personnel and coal mine supervision department personnel to grasp the changing trends of fire gases. The historical accumulation of real-time gas data during the production process can discover safety hazards in the production process, providing important basis for ensuring the safety production decisions of coal mining enterprises. So this system not only provides a reference for establishing a comprehensive safety warning system for coal mines, but also facilitates management personnel and coal safety supervision and management departments to use this system to remotely and real-time monitor the safety status of coal mines, and make timely decisions on the current safety status of coal mines.

Function Introduction:

1. Time concentration trend chart
This trend chart represents the continuous variation trend of the concentration of various fire gases or gas components at a certain detection point in the mine over a period of time. For example, based on the oxygen (O) in a sampling point or sealed area of the coal mining face₂）Carbon monoxide (CO), methane (CH)₄）Ethylene (C)₂H₄）By waiting for the time concentration trend curve, the real-time judgment of the coal seam oxidation heating status and the degree of fire development (extinguishing) in the sealed fire zone can be achieved, providing dynamic information on the natural ignition process (fire development) at relevant locations for fire prevention and fire zone management (unsealing).

2. Sampling point concentration trend chart
The sampling point concentration trend chart represents the real-time trend curve of the analysis results of coal seam spontaneous combustion marker gases at different sampling locations. Continuous analysis results curve of gas concentration changes in locations such as workface, return airway, goaf, and fire zone.

3. Gas explosion hazard assessment (explosion triangle method)
Based on the selected sampling points and sampling time, real-time measurement of gas explosion gas components is carried out to determine the degree of gas explosion danger and provide guarantees for the safety production of coal mines.

4. Comparison of historical contemporaneous data
By comparing current and historical trend data, especially combined with real-time monitoring of GC5085 gas chromatograph, fire hazards can be reported early. By analyzing the historical data recorded in real-time before and after the accident, the cause of the accident can be determined to avoid its recurrence. Comparing the random results of real-time monitoring and analysis of any sampling point with historical data is one of the necessary means for safety supervision, especially for timely guidance of fire prevention management, establishment of a natural combustion prediction and forecasting management system, and prevention of potential hazards.

5. Threshold alarm
According to the "Coal Mine Safety Regulations" of our country, the mine safety monitoring system shall be responsible for the composition of mine air (such as O)₂、 CH₄、 CO、CO₂All concentration indicators have safety limit values; The marker gas for coal seam spontaneous combustion is the main scientific basis for accurate and early prediction of spontaneous combustion when it reaches its critical index. Threshold alarm can display warning lines of critical values of components in real time, providing reference for taking timely measures.

6. User Network
Multiple users can log in and use the system through the local area network (Intranet). Remote users outside the local area network can also use this system through the Internet after authentication.

7. Security and confidentiality
For security reasons, only specific users are allowed to use this system. Operation permission management can be implemented by the system to configure, attribute, and group permissions for different departments and management personnel. Generally, the system users are mainly coal mine management personnel, and these user administrators are the same as the configuration database users.

8. User friendly interface
Users can choose to display the system's time, components (single or multiple components), and detection points (single or multiple points) according to their actual needs. At the same time, users can also set the color and line type of the curve according to their own habits. In addition, the naming of each detection point is completely defined by the user when creating the database. The user-friendly interface provides maximum flexibility for users to use.

Main features:
Easy to operate and highly logical
◎ Good repeatability, providing you with more accurate report results
◎ Stable and reliable work, capable of comparing multiple spectra
◎ X and Y axes can be zoomed in and out freely, with multiple automatic page flipping functions
◎ Rich schedule function
The entire analysis process can be saved as a method
Sampling can be connected to remote control for startup