Tower internal component for fractionating tower

Abstract

The invention discloses an internal component for a fractionating tower, and belongs to the field of petroleum equipment. The tower internal component comprises a fluid distribution pipe, fluid distribution grooves and a baffle mechanism which are sequentially distributed at intervals from top to bottom; the baffle mechanism comprises at least three layers which are arranged at intervals from top to bottom, adjacent upper and lower layers of baffles are arranged in a staggered mode, each layer of baffles comprises a plurality of baffles arranged at intervals, and the distance between every two adjacent baffles in the same layer of baffles is smaller than the width of the baffles; the fluid distribution pipe is used for distributing fluid into the fluid distribution groove; the fluid distribution grooves are used for distributing fluid to the topmost baffle of the baffle mechanism, the multiple fluid distribution grooves are arranged at intervals, and a balance groove is formed between every two adjacent fluid distribution grooves and used for enabling the liquid levels of the multiple fluid distribution grooves to be consistent. The tower internal component can obviously increase the gas-liquid contact area, is beneficial to enhancing the heat and mass transfer effect, prevents oil gas from coking and blocking, reduces the gas resistance drop, and obviously improves the washing effect of catalyst powder.

Description

technical field [0001] The invention relates to the field of petroleum equipment, in particular to a tower internal component used in a fractionation tower. Background technique [0002] For fractionation towers, especially catalytic cracking fractionation towers, the feed is superheated oil gas with a temperature exceeding 500°C, and catalyst dust is also entrained in the superheated oil gas. In order to avoid coking of superheated oil and gas, an oil slurry heat exchange section is usually set up inside the fractionation tower. [0003] At present, a herringbone baffle is usually installed inside the oil slurry heat exchange section. The circulating oil slurry drawn from the bottom of the tower returns to the tower after heat exchange and cooling, and contacts the rising oil and gas countercurrently through the herringbone baffle. On the one hand, the oil and gas are rapidly cooled. To avoid coking; on the other hand, the catalyst dust entrained by oil and gas is washed d...

AI Technical Summary

Problems solved by technology

[0005] When the temperature of the oil slurry heat exchange section increases significantly, the herringbone baffle has limited cooling effect on the oil and gas, and the catalyst dust washing effect is poor at the same time as the oil and gas temperature is high, which is easy to coke and block the tray

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