News center

Stainless steel Pall ring packing specification

2021-10-12

Due to the lack of lubricant in the laminated packing, lubricants need to be added during use. How to choose fillers? The choice of filler includes determining the type, specification and material of filler. How to choose fillers? Fangxing petrochemical packing plant to introduce the description!


The choice of filler includes determining the type, specification and material of filler. The selected filler should not only meet the requirements of the production process, but also make the equipment investment and operating costs low. The choice of packing type considering the requirements of the separation process, usually consider the following aspects: high mass transfer efficiency in general, the mass transfer efficiency of the structured packing is higher than that of the bulk packing. The flux has to be high. On the premise of maintaining high mass transfer efficiency, the packing with high flooding point gas velocity or gas phase kinetic energy factor should be selected.


Stainless steel Pall ring filler material including stainless steel and carbon steel, due to its processing wall thin, void rate, flux, small resistance, heat resistance, corrosion resistance, separation effect is good, suitable for vacuum distillation tower, heat sensitive, easy to decompose, easy polymerization, easy to carbon material.


On the basis of rassey ring, Bauer ring has made a significant improvement. Two rows of window holes with inner tongue are opened on the ring wall. This structure improves the distribution of gas and liquid, makes full use of the inner surface of the ring, and compared with Rassey ring, the handling capacity can be increased by more than 50% while the pressure is reduced by half.

image.png

Features: PALL ring packing is characterized by low pressure drop, high flux and high efficiency. HYPAK packing has lower pressure drop and higher mass transfer efficiency than PALL ring of similar size, and better liquid distribution in the packing layer.


Application: suitable for all kinds of separation, absorption, desorption device, atmospheric and vacuum device, synthetic amine decarbonization, desulfurization system, ethylbenzene separation, isooctane, methyl benzene separation, etc. Stainless steel Pall ring stainless steel packing price.


Metal packing Metal packing can be made of a variety of materials, the main consideration when choosing corrosion. Carbon steel filler cost is low, and has good surface wettability, for non corrosion or low corrosion should be given priority to use. Stainless steel packing has strong corrosion resistance and can generally resist the corrosion of common materials except Cl-, but its cost is high and the surface wettability is poor. In some occasions (such as the process of vacuum distillation under low spray density), it is necessary to treat the surface to achieve good use effect.


Above is fang Xing petrochemical to share the characteristics of stainless steel Pall ring, want to know more packing knowledge, you can call: 0799-6841308