Radon-absorbing activated carbon step-down desorption regeneration method and device

Abstract

A method and device for reducing the pressure, desorption and regeneration of radon-absorbing activated carbon. First, the activated carbon tube is vacuumed, and then the activated carbon is heated to desorb the radon adsorbed by the activated carbon. Then, the throttle valve is adjusted to maintain a certain vacuum degree of the activated carbon tube. The flow of air passes through the activated carbon tube, thereby taking away the desorbed radon. The device consists of a controller, a power supply, an activated carbon tube, a temperature gauge, a vacuum pump and a throttle valve. Among them, the activated carbon tube consists of a cylindrical cylinder with openings at both ends, end caps arranged at the two open ends of the cylinder, activated carbon disposed in the cylinder, a pressure spring, two heating electrodes, two activated carbon fiber sheets and It consists of a thermistor, and the end cap and cylinder are connected by threads. Installed on the end caps at both ends of the activated carbon tube, the vacuum pump and throttle valve are connected to the power supply through wires, the two heating electrodes are connected to the power supply through wires, the thermistor is connected to the thermometer through wires, and the temperature gauge is connected to the controller through wires , the controller and the power supply are connected by wires.

Description

technical field [0001] The invention relates to a method for reducing radon in people's living and working places, in particular to a radon-absorbing active carbon step-down desorption regeneration method and device. Background technique [0002] With the improvement of people's living standards and environmental protection awareness, radon in the living room, especially in some underground facilities with high radon concentration, has attracted more and more attention. It has become an important and effective task to take effective measures to reduce radon levels in living and working places. meaningful work. Usually the method of reducing radon includes ventilation, etc. However, in some places where ventilation is inconvenient, ventilation cannot be used to reduce radon. It is a feasible method to use activated carbon to continuously remove radon in places with inconvenient ventilation, but a certain quality of activated carbon can only treat radon in a limited volume of...

AI Technical Summary

Problems solved by technology

Usually the method of reducing radon includes ventilation, etc. However, in some places where ventilation is inconvenient, ventilation cannot be used to reduce radon

It is a feasible method to use activated carbon to continuously remove radon in places with inconvenient ventilation, but a certain quality of activated carbon can only treat radon in a limited volume of air at a time. The problem of desorption regeneration

The desorption and regeneration of radon-absorbing activated carbon usually adopts the method of high-temperature desorption, which consumes a lot of energy, heats up slowly, and the regeneration time is too long, which cannot meet the requirements of rapid regeneration in the process of continuous radon removal of activated carbon.

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