Device for collecting tritium in air by condensation method

Abstract

The invention discloses a device for collecting tritium in air by a condensation method. The device comprises a rack body, wherein one side of the rack body is provided with an air inlet; the upper side of the rack body is provided with a control mechanism; the middle of the rack body is provided with a dehumidifier with an air suction system; the lower part of the rack body is provided with a water receiving bucket; and one side of the dehumidifier is provided with an air outlet and an air outlet humidity detection mechanism. The device is reasonable in structure design, an electronic valve switch is adopted to control the temperature and the humidity of the air inlet and the temperature and the humidity of the air outlet in fixed time so as to be convenient in carrying out sampling measurement on the temperature and the humidity to obtain the temperature and humidity parameters of the air inlet and the air outlet, and a measurement result is guaranteed to be accurate and reliable.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and detection devices, and in particular relates to a device for collecting tritium in air by condensation. Background technique [0002] Tritium is a radioactive substance with a half-life of 12.6 years. Most of the tritium in the air will eventually form tritium water-water vapor, which enters the water cycle together with ordinary water, so it is easy to expose humans to radiation. In the field of environmental protection, monitoring the content of tritium in water and air has been paid more and more attention in the world. [0003] At present, the devices used for gas tritium collection on the market mainly adopt condensation method and freezing method. The freezing method collection device freezes the water vapor in the air through a cold trap, and then collects tritiated water after thawing after the collection is completed. The instruments using this method are often expe...

AI Technical Summary

Problems solved by technology

The freezing method collection device freezes the water vapor in the air through a cold trap, and then collects the tritiated water after thawing after the collection is completed. The instruments using this method are often expensive, difficult to maintain, and have a high failure rate. At the same time, they cannot be strictly implemented. Continuous sampling on

Condensation samplers are commonly used as dehumidifiers. This method can efficiently and continuously collect tritiated water in the air. However, this device has no parameters such as temperature, humidity, and the flow rate and volume of the collected gas, and it is assumed in the calculation that the temperature collected by the condensation method is The efficiency is 100%, but this cannot be achieved in practice, so the above-mentioned factors will affect the accuracy of subsequent data analysis

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