Ammonia absorber

Abstract

An ammonia absorber comprises a shell-and-tube ammonia absorber shell and channel boxes on both ends, wherein one channel box on one end is provided with a circulating water inlet and a circulating water outlet; the shell is provided with a stronger ammonia water outlet at the bottom, tube sheets on both ends and a tube bundle. The ammonia absorber is characterized in that ammonia inlets are arranged on both sides of the shell; ammonia uniform distribution plates are arranged at the ammonia inlets which are on both sides of the shell; evenly distributed gas inlet micropores are arranged on the uniform distribution plates; the upper part of the shell is provided with a longitudinal water distributor with a water inlet, the lower part of the longitudinal water distributor is connected with evenly distributed water distribution holes on the upper part of the shell through water distribution pipes, a spraying plate is arranged below the water distribution holes in the shell; and evenly distributed micropores are arranged on the spraying plate. The invention has the advantage that the spraying plate which is arranged longitudinally and ensures that the height of the spraying liquid column is constant, is adopted, thus spraying is uniform and stable and the capability of resisting the fluctuation of load is high, and ammonia passes through profiled channels to ensure that the absorption efficiency is up to 100%.

Description

technical field [0001] The invention belongs to coal chemical equipment, in particular to an ammonia absorber. Background technique [0002] In the coal chemical industry, the role of the ammonia absorber in the ammonia suction refrigeration system is to use the full contact between water and ammonia gas to absorb ammonia gas into concentrated ammonia water, thereby providing necessary low-temperature washing for subsequent coal chemical production. Concentrated ammonia. However, the existing structure of the shell-and-tube ammonia absorber is to arrange a plurality of nozzles in a single row longitudinally on the upper part of the device to spray water to the ammonia. The liquid column and low-load spray effect are poor; at the same time, the ammonia gas flows uniformly along the radial direction along the tube bundle space, so that the outer absorption effect is good, the center absorption effect is poor, and the effective heat exchange area of ​​the absorber is less than...

AI Technical Summary

Problems solved by technology

However, the existing structure of the shell-and-tube ammonia absorber is to arrange a plurality of nozzles in a single row longitudinally on the upper part of the device to spray water to the ammonia. The liquid column and low-load spray effect are poor; at the same time, the ammonia gas flows uniformly along the radial direction along the tube bundle space, so that the outer absorption effect is good, the center absorption effect is poor, and the effective heat exchange area of ​​the absorber is less than 70%.

Images