A gas absorption system and its application

Abstract

The invention belongs to the field of gas separation and provides a gas absorption system. The gas absorption system comprises an absorption tower, an alkaline liquid tank, a secondary liquid tank and a to-be-absorbed gas pipeline, wherein a pipeline is arranged on the top of the absorption tower; an evacuation pipeline, a non-oxidizing gas pipeline, a water pipe and an overflow pipe are connected to the pipeline; the overflow pipe is connected with the secondary liquid tank; distributed filling and de-foaming filling are arranged in the absorption tower; the secondary liquid tank is connected with the alkaline liquid tank through the pipeline and a pump and is connected with the tower bottom of the absorption tower through the pipeline; the to-be-absorbed gas pipeline enters the absorption tower from a position below the distributed filling in the absorption tower. The absorption tower of the gas absorption system provided by the invention is divided into three main spaces by the distributed filling and the de-foaming filling, the gas-liquid reverse flow operation is realized, the relatively good absorption efficiency is obtained, the emission of harmful gas is reduced, and the gas absorption system is easy to automatically operate and can continuously run.

Description

technical field [0001] The invention belongs to the field of gas separation, and in particular relates to a system for separating harmful gas from gas and the application of the system. Background technique [0002] The ceramic fuel element used in my country's pebble bed high temperature gas-cooled reactor has a structure of spherical coated particles (TRISO) dispersed in the graphite matrix of the fuel zone. The first guarantee of the inherent safety of the high-temperature gas-cooled reactor nuclear power plant is that the nuclear fuel used is TRISO-type coated particles, which consists of a nuclear fuel core, a loose pyrolytic carbon layer, an inner dense pyrolytic carbon layer, a silicon carbide layer and an outer layer. Dense pyrolytic carbon layer composition. The above cladding layer can well prevent the fission products from escaping the fuel particles at the design temperature. The most critical layer is the SiC layer, which is responsible for preventing the relea...

AI Technical Summary

Problems solved by technology

[0003] Facing the development trend of high-temperature gas-cooled reactors, the production of fuel elements is moving toward large-scale. The original laboratory system has a gas-into-liquid cavity structure, which has low absorption efficiency, cannot be automatically controlled, and the gas is easily mixed with air to cause explosion hazards, which cannot meet the requirements. There is an urgent need for a set of efficient, continuous operation, easy automatic control, safe and reliable gas absorption equipment that meets production requirements

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