Combined feeding distributor

Abstract

The invention relates to a combined feeding distributor which comprises a double tangential feeding distributor and a double-row blade feeding distributor, wherein an inner sleeve, a cover plate and a tower wall of the double tangential feeding distributor form an annular space with closed top and open bottom; guide plates are arranged between the tower wall and the inner sleeve; the two sides of the guide plates are fixed on the tower wall and the inner sleeve respectively; guide plate reinforcing rib plates are arranged on the two sides of the guide plates; the heights of the guide plates gradually change from a feed port to annular channels on the two sides; a closure plate is arranged at the tail end of the inner sleeve to prevent a tangential material from impacting the double-row blade feeding distributor; guide blades of the double-row blade feeding distributor are fixed via an upper baffle and a lower baffle; guide blade reinforcing plates are arranged between the guide blades; the baffles are trapezoids; longer bottom edges of the trapezoids are located on one side of the feed port; the guide blades are fixed between the upper baffle and the lower baffle. The material is subjected to diversion, so that disturbance of gas on tower kettle liquid and a vortex generated by the gas in a tower are weakened, entrainment of the liquid is reduced, and upflow is further uniformly distributed.

Description

technical field [0001] The invention relates to a gas-phase and gas-liquid two-phase feed device for a tower, and more specifically relates to a combined feed distributor composed of a double tangential feed distributor and a double-row vane feed distributor. Background technique [0002] The tower is a gas-liquid, liquid-liquid contact mass transfer equipment widely used in the petroleum and chemical industry. With the large-scale development of packed towers and plate towers, the uniform distribution of liquid and gas in the tower is a key issue for tower expansion, especially the uniformity of the initial distribution of gas-liquid two-phase feed, which directly affects the separation efficiency of the tower and product quality. [0003] In recent years, the gas-liquid two-phase feed distributors for towers that have been widely used in the industry mostly use perforated straight pipes or other different feed flow guide devices to achieve uniform distribution of streams ...

AI Technical Summary

Problems solved by technology

The double tangential feed distributor has a relatively uniform distribution of gas velocity, less entrainment of liquid foam, and less resistance. However, since the materials are all directed downward after entering the tower body, it is bound to cause disturbance to the liquid in the tower kettle and affect the operation; The material distributor occupies a relatively low place in the tower, and the gas is distributed horizontally, which avoids its disturbance to the liquid in the bottom of the tower, but its structural characteristics also determine that it can generate eddy currents in the tower while uniformly distributing the gas Phenomena that affect the distribution

Although the industrial application of the above-mentioned gas distributor has improved the uniformity of the distribution of the feed gas in the tower to a certain extent, there are still some defects.

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