Single gas flow
The gas quenching cell is an enclosed area under pressure, which allows a load to be cooled at different rates and at different pressures (up to 20 bar absolute).
The load is cooled from top to bottom.
It is carried out by using two water/gas heat exchangers located on each side of the load. The water and temperature flow process the cooling power of exchangers and thus the cooling rate of the load.
The nitrogen gas flow is performed by two axial turbines, located above the load, in the upper part of the cell. The turbine concept is crucial to optimise the gas velocity and the power of the engines.
The quenching speed during quenching can be modulated and adjusted by changing the turbine speed quench pressure.
Over time, improvements were made in chamber design to even cell cooling: turbine blades, grid flow distribution, supply and exchanger surfaces etc.