Zld-2 borehole multistage flowmete

  Application field of zld-2 borehole multistage flowmeter borehole multistage flowmeter is used to measure the initial gas emission velocity of coal seam borehole, predict the coal and gas outburst risk of coal body in front of the working face and test the outburst prevention measures to prevent coal and gas outburst
It can also be used to determine the effective influence radius of outburst prevention advance drilling
Zld-2 borehole multistage flowmeter is designed based on the nozzle throttling principle
When the gas flows through the nozzle, the section of the flow beam will shrink and a pressure difference will be generated on both sides of the nozzle
The greater the flow, the greater the pressure
When the pressure difference is constant, the larger the nozzle aperture, the greater the gas flow
The flowmeter is designed with five different nozzles
Changing nozzles with different apertures can obtain different flow measurement ranges
Technical parameter range of zld-2 borehole multistage flowmeter: 0-1
6kpa; Flow measurement range: 0-100l / min; Water column differential pressure reading: 0-160mm instrument resolution: 1mmh20 instrument weight: 0
8kg Zhengzhou Huazhi production and supply gas pressure tester | gas desorption instrument | zld-2 borehole multi-stage flowmeter density tester | geological exploration gas desorption instrument | gas content rapid tester | gas stick | ball bladder | gas absorption constant tester | gas diffusion velocity tester | U-shaped inclined differential pressure gauge | positive pressure oxygen respirator | deep hole Fixed point sampling device | DGC coal sample tank