Product Introduction of DGC Type Downhole Desorption Instrument for Coal Mine Gas Analysis
The DGC type downhole desorption instrument adopts the water displacement gas collection method, using the desorbed gas to displace the water column in the measuring cylinder. By reading the height of the gas column, it measures the gas desorption rate and desorption volume, and can also determine the desorbable gas volume. The gas desorption instrument has the following advantages: simple and compact structure, small size, lightweight, easy to transport and carry; low water consumption, suitable for field or underground operations, and ideal for water-scarce measurement locations; the gas desorption instrument is easy to level, requiring only a small flat surface or being hung up.
Technical Parameters of DGC Type Downhole Desorption Instrument
(1) Material: Glass (round bottom) (length 550mm * top cover diameter 80mm * bottom base diameter 120mm * bottom base height 40mm);
(2) External dimensions (case): 600 × 150 × 160mm (length * width * height);
(3) Case material: Aluminum alloy or stainless steel frame;
(4) Accessories: Stopwatch, sealing ring, sealing bolt, connecting latex tube, and items specifically used for cleaning (for internal cleaning);
(5) Downhole desorption tube range: 800ml per use; downhole desorption small scale: 2ml; can be repeatedly filled with water for measurement. For other performance indicators, refer to the enclosed user manual;
(6) Operating requirements: As per the user manual;
(7) Scale line: Engraved line;
(8) Air tightness: No water (gas) leakage within 5 minutes under 0.1MPa pressure.

Zhengzhou Aidi produces DGC type downhole desorption instrument for coal mine gas analysis, supplies coal drill cuttings desorption instrument, deep hole sampling device, pressure measuring instrument, geological exploration desorption instrument, borehole flow meter, mine extraction and outburst prevention equipment, true density measuring instrument for coal, gas content measuring instrument, automatic initial gas emission speed measuring instrument, diffusion speed measuring instrument, gas parameter instrument for coal extraction pipelines, borehole coal powder circulation device, isothermal high-pressure adsorption device, ab value measuring instrument, coal firmness coefficient measuring instrument,mine intrinsic safety type coal seam gas pressure measuring instrument, gas content measuring instrument in coal, gas outburst parameter instrument, coal drill cuttings gas desorption instrument, downhole gas desorption instrument, coal sample can/coal sample cylinder, geological exploration gas desorption instrument, borehole multi-stage flow meter.

Mine sealing device, high negative pressure gas sampler, methane sensor calibrator, automatic negative pressure sampler, positive pressure sampler/various gas samplers, methane sensor calibrator, self-rescuer air tightness checker (pointer type/digital display type/touch screen type), downhole gas content one-stop measuring instrument, gas content measuring instrument in coal,
Optical interference methane detector measuring device (intelligent type), optical interference methane detector calibrator (water column type), electric constant temperature drying oven.
Laboratory instruments:
Direct/automatic gas content measuring device (normal pressure desorption method), residual gas content measuring device (degassing method), deep hole rapid sampling device, fully automatic gas adsorption constant measuring instrument, fully automatic initial gas emission speed measuring instrument, fully automatic true density measuring instrument for coal, fully automatic industrial analyzer, mine gas chromatograph, experimental device for標志性氣體 of coal spontaneous combustion, ball mill, sealed sample preparation grinder, fully automatic sulfur meter, coal dust explosion measuring device, coal spontaneous combustion tendency measuring instrument, coal sample preparation device.