Ningbo Cijie Chemical Equipment Co., Ltd.
Material selection and performance of column internals
Tower internals are an important part of cooling towers, and are the key components of cooling tower heat exchange. After years of experience in the production and installation of tower internals, it is concluded that the cooling generated by the packing reaches 60% to 70% of the cooling of the entire tower. It is also generally made of unyielding polyvinyl chloride corrugated board, with exquisite hydrophilic properties, ensuring that water forms a water film and water spots on the packing instead of water flow, strengthening the water-air exchange area, and extending the water-air exch
The difference between structured packing and other packing
Structured packing is a packing that is arranged in a uniform geometric pattern in the tower and stacked regularly. Consists of many packing units with the same geometry. Random packing has the characteristics of a certain orderly arrangement in the process of random random packing, so the pressure drop, the flux is large, the liquid distribution is uniform, and the operation flexibility is large. However, compared with structured packing, structured packing has a series of advantages such as high efficiency, low pressure reduction, large processing capacity, uniform gas-liquid distribut
Pall ring separation efficiency and high operating flexibility
Pall ring packing has the advantages of large flux, small resistance, high separation efficiency and large operating flexibility. Under the same pressure reduction, the processing capacity can be more than 50% larger than that of Raschig ring. At the same throughput, the pressure reduction can be reduced by half, and the mass transfer efficiency can be increased by about 20%. Compared with the Raschig ring, this packing has the characteristics of large production capacity, low resistance, and large operating flexibility. Under norma
The use of Pall ring packing can have larger surface area and void ratio, increase the uniform distribution of fluid, change the range of liquid spray density, and enhance the effect of mass transfer. Now put forward some opinions on the construction and transformation of domestic Pall ring packing: 1. In response to the national call for energy conservation and emission reduction, and reducing production costs for enterprises, the application of Pall ring packed towers will inevitably increase enterprise benefits and achieve the p
Advantages of structured packing
Although the geometric structure of structured packing and the arrangement in the column are different, they have in common that the gas and liquid passages and the contact mass transfer mode of the same structure are artificially specified; the porosity and the effective contact surface area are increased; the two phases are strengthened. lateral mixing; reduce wall flow and channeling phenomena, etc. In this way, structured packing significantly overcomes the amplification effect and effectively improves the separation eff
Metal structured packing includes perforated plate corrugated packing, expanded mesh corrugated packing, perforated plate corrugated packing, wire mesh corrugated packing and annular corrugated packing. Orifice corrugated packing is a structured packing assembled with holes on the surface of metal sheet and large corrugations. It has the characteristics of low resistance, uniform gas-liquid distribution, high efficiency, large flux, and insignificant amplification effect. pressure and pressurization operations. Wire mesh co
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