The original aluminium and copper piping in the cold box was removed and replaced with seamless coiled tubing, with no welds allowed in between to the instrument valves.
Products of Large air separation unit instrument tube removal
DEAR air separation has provided many sets of air separation plant for chemical industry for many years, with rich experience and the safe and stable unit operation. This unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit, and the whole rectification hydrogen-free argon production process. The rapid growth of enterprises in the industry is accompanied by the demand for production and the demand for air separation plant. DEAR air separation has cooperated with customers in the large-scale complete set of air separation plant KDON (AR) - 36000/70000-1200 project, which provides customers air separation plant with mature technology, reliable and convenient operation, and energy saving intelligence, which improves the production efficiency of customers, saving the operation cost and creates greater economic benefits.
DEAR air separation has provided many sets of air separation plant for chemical industry for many years, with rich experience and the safe and stable unit operation. This unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit, and the whole rectification hydrogen-free argon production process. The rapid growth of enterprises in the industry is accompanied by the demand for production and the demand for air separation plant. DEAR air separation has cooperated with customers in the large-scale complete set of air separation plant KDON (AR) - 13000 / 22000-350 project, which has meet the capacity demand and safety demand of the enterprise.
The oxygen enriched liquid air passes through the oxygen enriched liquid air channel through the chiller and then throttles to the upper tower for further distillation, the nitrogen at the top of the lower tower of liquid air separation plant passes through the nitrogen channel to the condensing evaporator for condensation into liquid nitrogen. A portion of the liquid nitrogen is passed through the liquid nitrogen pipeline as reflux to the lower column, while the other portion is sub-cooled by t...