Metal Plate 700Y Absorption Tower Packing Wire Gauze Packing ISO9001

700Y High Efficiency Metal Plate Tower 700y Distillation Packing

700Y high efficiency metal plate tower packing fast delivery in Yuanqiao

1. 700Y high efficiency metal plate tower packing is a kind of packing arranged and stacked in accordance with uniform geometry in the tower. The geometry of the whole tower section is regular, symmetrical and uniform, and the gas-liquid flow path is specified, which reduces the phenomenon of channel flow and wall flow, and the pressure drop can be very small.

2. Except for 700Y, other options of structured packing in Hualai factory:

Note: The influence of opening rate on the plate is not calculated

3. Yuanqiao structured packing in high vacuum distillation column.

1) The surface area per unit volume of structured packing should be large;
2) The free volume of the liquid phase in contact with the gas phase must be large;
3) The resistance to steam should be small (i.e. the cross-sectional area of the gap should be large);
4) Chemical resistance to both liquids and vapors;
5) The density should be small;
6) The price per unit of effective area should be small

4. Balance operation of vapor and liquid in packed tower

Vapor liquid equilibrium mainly reflects the quality and loss of products. It is achieved by adjusting the operating conditions (temperature and pressure) of the tower and the gas-liquid contact on the tray. Only when the temperature and pressure are fixed, can the composition of vapor-liquid equilibrium be determined. When the temperature and pressure change, the composition determined by vapor-liquid equilibrium will change, and the product quality and loss will change. The gas-liquid phase equilibrium is closely related to the material balance. If the material balance is well controlled, the rising steam speed in the tower is appropriate, and the gas-liquid contact is good, the heat and mass transfer efficiency is high, and the tray efficiency is also high. Of course, temperature and pressure will also change with the change of material balance.

5. Classification of distillation packing

Packed tower is a kind of gas-liquid mass transfer equipment with a large number of packings in the tower. Packed column was used in industrial production in the middle of the 19th century. Since then, it has developed with plate column, forming two different types of gas-liquid mass transfer equipment.
The body of the packed tower is a vertical cylinder with a supporting plate at the bottom. The packing material is placed on the support plate in a integral way. A packing pressing plate is installed above the packing to limit the movement of the packing with the updraft. The liquid is added from the top of the tower, sprayed onto the packing through the liquid distributor, and flows down the packing surface. The gas is sent from the bottom of the tower and distributed by the gas distribution device (gas distribution device is generally not set for small diameter tower), then it is countercurrent with the liquid and continuously passes through the gap of the packing layer. The gas-liquid two-phase is in close contact with the packing surface for mass transfer. Packed tower is a continuous contact gas-liquid mass transfer equipment, the two-phase composition changes continuously along the tower height. Under normal operation, the gas phase is continuous phase and the liquid phase is dispersed phase.

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