Direct-energization heating desorption regeneration device and method of radon-absorption active carbon

Abstract

The invention relates to a method and a device for recovering and regenerating niton-adsorbing activated carbon through direct electric heating. The method utilizes good electric conduction characteristic of activated carbon, and applies a voltage at two ends of an activated carbon tube to directly conductively heat the activated carbon so as to recover niton adsorbed by the activated carbon, and then uses an air extracting pump to extract air so that air brings the recovered niton away. The device consists of a controller, a power supply, the activated carbon tube, a temperature meter and the air extracting pump, wherein the activated carbon tube consists of a cylindrical cylinder of which two ends are open, end covers arranged on the two opening ends of the cylinder, activated carbon arranged in the cylinder, a pressure spring, two heating electrodes, two activated carbon fiber plates and a thermal resistor; the end cover at one end of the activated carbon tube is connected with the air extracting pump through a pipe; the air extracting pump is connected with the power supply through a lead wire; the two heating electrodes is connected with the power supply though lead wires; the thermal resistor is connected with the temperature meter through a lead wire; the temperature meter is connected with the controller through a lead wire; and the controller is connected with the power supply through a lead wire.

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 direct heating 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 volu...

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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