CHY-02D Online aluminum liquid hydrogen analyzer
Weight: 13kg
Dimensions: 34*24*47.5cm
Nitrogen purge gas for measurement:
N2 purity ≥99.995%
Water content: ≤3ppm
Principle：The CHY-02D analyzer allows hydrogen to diffuse from the aluminum liquid through a porous probe into the aluminum liquid and
diffuse into a closed volume. The amount of hydrogen in the closed volume is measured, and the hydrogen content in the aluminum liquid is
obtained by applying Sievert's law. The closed volume refers to the "closed loop" or "recirculation loop" of the analyzer. It contains only
hydrogen and nitrogen. Hydrogen diffuses out of the aluminum liquid into the closed loop, and the opposite process also occurs: hydrogen in
the gas loop diffuses back into the aluminum liquid. The hydrogen content in the loop reaches a balance with the evaporation and dissolution of
hydrogen in the aluminum liquid.
S ：Solubility coefficient: Concentration of hydrogen in aluminum liquid (mL/100g)
S0 bilit：Soluy in pure aluminum at 700℃: 0.92 mL/100g
pH2 ：Partial pressure of hydrogen in a closed circuit.
CF(A)： Alloy correction factor : Consider the change of solubility based on the chemical composition of aluminum alloy.
CF(Tmelt) ：Aluminum liquid temperature correction factor: Consider the change of solubility based on the temperature of pure aluminum.
Automatic calibration unit, used to calibrate the hydrogen analyzer.
calibration standard gas:
Nitrogen and hydrogen dual components (N2-H2 dual gas), hydrogen concentration: 2%, 20% each, purity ≥ 99.998%
Probe: Collect hydrogen in molten aluminum
The probe of CHY-02D serves as the interface between the closed loop and the aluminum liquid exchange gas. The gas in the closed loop circulates
through the permeable ceramic part of the probe. The probe is immersed in the aluminum liquid to collect the hydrogen diffused from the metal ,
it is connected to the analyzer through a small diameter stainless steel tube. Because the hydrogen transfers relatively slowly at the interface between
the probe and the aluminum liquid, only when the gas in the entire loop circulates through the probe many times can it reach equilibrium with the
hydrogen content in the aluminum liquid. The power for gas circulation comes from the pump inside the analyzer.
Lifespan: 10 insertions or 3 hours in pure aluminum
Ceramic Coated Thermocouple:Detecting aluminum liquid temperature
The temperature of the aluminum is required to calculate the hydrogen concentration in the aluminum liquid.
On the side, we thoughtfully prepare an electronic pen for customers,
which can be used to operate on the 7-inch HD touch screen without taking off gloves, which is more convenient.
Thermal micro printer：Print measurement data
Automatically print after measurement
Can also print manually during measurement
1 USB port for exporting test records in excel format
Nitrogen filling pipe: used to fill the hydrogen tester with nitrogen
Use environment and facilities
Use environment: a place without conductive dust, explosive dust and intense vibration.
Installation height: no more than 1000 meters above sea level.
Ambient temperature: -10~45℃,
Ambient humidity: 30-70RH%
The back of the instrument is equipped with a heat insulation device, which can withstand a maximum temperature of 60 degrees.