Primarily used for measuring the key indicator in coal and gas outburst risk prediction—the initial gas diffusion velocity ΔP; investigating the gas diffusion characteristics of coal, continuously measuring the initial gas diffusion velocity within 0-60 seconds after adsorbing high-concentration methane under one atmospheric pressure.

The core component of the initial gas diffusion velocity measuring instrument adopts imported sensors, fully achieving computer detection and control. The entire testing process can be completed simply by pressing the corresponding keys according to the prompts on the computer interface; eliminating human-induced errors in experimental results; the test results are printed in the form of curve reports.

Product Performance

This equipment is designed in accordance with the AQ1080-2009 standard "Method for Determination of Initial Gas Diffusion Velocity (ΔP) of Coal." The experimental process is fully intelligent and automated; data results are intelligently calculated, with simple operation to improve work efficiency;

The equipment's sensors and electromagnetic valves use imported components, fully ensuring excellent system airtightness and scientifically accurate test results;

The main unit design complies with safety ergonomic principles, featuring integrated design that reduces manual operations and ensures high safety and reliability during experiments;

The equipment control software interface is compatible with XP and Win7 systems, with smooth operation that is simple and easy to learn;

The equipment's sample chamber and connecting pipelines are made of metal, enhancing the equipment's service life;

Automatic calibration upon startup, automatic calibration of testing space and fixed space;

Possesses independent intellectual property rights, product patent certificates, quality system certification certificates, credit rating certificates, and product software copyright certificates.

Technical Parameters

ΔP measurement range: Full range

Sample bottle volume: 5ml

Fixed space volume: 28ml

Number of measurement samples: 6 channels

Electronic balance accuracy: 3000g/0.1g

Crushing sample preparation machine: 200g

Sample sieve: 60-80 mesh

Vacuum drying oven: 0-250°C

Rotary vane vacuum pump: Pumping speed 4L/S, ultimate vacuum ≤4Pa

Methane gas: 99.99%