The air separation cold box is generally filled with pearlite as thermal insulation material, and there is air between pearlite particles. After the operation of the air separation plant, the temperature in the cold box decreases, and the volume of pearlite and air decreases. In order to reduce the cold loss, the cold box is required to be well sealed, so the cold box will form negative pressure, and the cold box may be compressed under the effect of the internal and external pressure difference. In order to prevent the cold box from collapsing, generally fill the cold box with dry nitrogen or dirty nitrogen after the equipment is running to keep the cold box at a slight positive pressure.
DEAR Air Separation has seven years of operating experience in the field of industrial gas investment. The gas products produced by the air separation industry are used as raw materials for industrial basic production. Investing in industrial gas projects, building their own gas production lines, taking advantage of the natural advantages of the air separation manufacturing industry, changing the traditional mode of manufacturing only producing equipment without producing end products, and the cost advantage of energy saving and consumption reduction of Deere Air Separation, providing gas products to surrounding customers, will provide a huge development platform for manufacturing industry production, And it will bring huge social benefits and considerable profits. Deer Air is accelerating the strategic transformation from selling "cow" to selling "milk"!
