Online hydrogen determination system for molten steel

Online hydrogen determination system for molten steelIntroduction to HYDRIS

The HYDRIS immersion probe system can measure the hydrogen content of molten steel online

HYDRIS provides you with an online hydrogen measurement method for steelmaking sites, eliminating the need for traditional sampling methods. Due to its fast and accurate characteristics, HYDRIS represents the world's leading level of hydrogen measurement methods, making it possible to directly control hydrogen content in steelmaking processes.

Working principle of HYDRIS
HYDRISOnline hydrogen determination system for molten steelIt can directly measure the hydrogen content of molten steel in ladles, intermediate ladles, and steel ingot molds. Nitrogen, as a carrier gas, enters the molten steel through a probe and absorbs hydrogen from the molten steel until the hydrogen content in the carrier gas reaches equilibrium with the hydrogen content in the molten steel.

Working method of HYDRIS system
Nitrogen, as a carrier gas, enters the molten steel through the gas pipeline, measuring gun, and blowing pipe on the probe under the push of the pump in the circuit, forming bubbles. After nitrogen bubbles absorb hydrogen from the molten steel, they return to the pneumatic cabinet through the breathable plug of the internal cover of the probe, and the carrier gas circulates continuously in the circuit multiple times. Eventually, the hydrogen content in the molten steel reaches equilibrium with the hydrogen partial pressure in the carrier gas.

The Multi Lab HYDRIS instrument monitors the equilibrium state in the gas circuit until the rate of change in hydrogen content in the carrier gas approaches zero.
Composition of HYDRIS

1. Probe
HYDRIS probes are disposable components. It is equipped with a blowing quartz tube, a breathable plug, a filtering chamber, and connecting components inside.
2. Testing gun and catheter
The circulation of the carrier gas needs to pass through the conduit in the measuring gun, and it is required to have reliable airtightness. The connection between the probe and the gun barrel should have good sealing.
3. HYDRIS Pneumatic System
The pneumatic cabinet includes valves, thermal conductivity detectors, air pumps, and circuit boards. It also includes a nitrogen supply device and a filter.
4. HYDRIS processor
Multi Lab HYDRIS can convert thermal conductivity detection signals into hydrogen content signals, and control the pneumatic system before and during measurement through multi-core connecting cables. It is easy to adjust measurement parameters using a 16 key industrial keyboard.
This instrument can store more than 110 measurement data and can be accessed from the display at any time.

technical indicators
1. Output function
1.1 Signal output: through solid-state or reed relay
1.2 Programmable serial output (RS232 □/Rs232 □): date, time, furnace number, result, etc
1.3 Parallel Printer Output (Centronics)
1.4 Sound alarm output: measurement completed
1.5 Optional output: 0/4~20mA analog output, BCD output
1.6TTY20MA current loop output to large screen display
2. Measurement time: 30-120 seconds
3. Measurement range: [H]: 0.5~14ppm
4. Measurement accuracy:
4.1[H]＜4~0.50ppm:±0.15ppm
4.2[H]≥4~14.0ppm:±0.20ppm
5. Data storage: 120 measurement results
6. Operating System
6.1 Power Supply: 220VAC 50/60Hz
6.2 Power: Hydrogen analyzer processor 60W
Pneumatic cabinet for hydrogen analyzer 115W
Non rectangular Chen style printer 60VA
6.3 Environmental temperature: 0~50 ℃