Ozone standard gas generating apparatus

Abstract

The invention provides an ozone standard gas generation device, consisting of a lower pressure Hg light micro-area radiation system, a photosensitive probing control system and a dynamic ration diluting system. After the air or the oxygen with high purity generated by air source is stabilized by a stabilizer valve and is purified by a purifier, the air or the oxygen with high purity is stabilizedby a mass flowmeter and the flux is calculated; the gas is divided into two ways: one way flows through the low pressure Hg light micro-area radiation pool and generates ozone-mixed gas with certain consistency and enters the ozone diluting pool after the flux is controlled by a floater flowmeter; the temperature and the light current of the radiation pool are respectively kept constant by the temperature-control system and the photosensitive-probing system; the flux of the other way is controlled by the floater flowmeter and directly enters the ozone diluting pool; the gases of the two ways are sufficiently mixed and are prepared to the ozone standard mixed gas and are guided for application out of the standard gas port or exhausted from the drain port. The device is taken as the ozone calculation secondary quantity transmission standard device and provides effectively method for the implementation of exactness, uniformity and the traceability of the ozone measuring datum of China.

Description

technical field [0001] The invention relates to an ozone standard gas generating device, which belongs to a preparation device for generating stable ozone mixed gas by using low-pressure mercury lamp radiation method, photosensitive detection control technology and gas dynamic quantitative dilution technology. Background technique [0002] Ozone is the main participant and driving force for the evolution of the chemical toxicity of air pollutants, and is the main monitoring object for predicting the hazards of air pollutants. With the establishment of international organizations' ozone limit standards and analysis methods, the development of high-precision ozone measurement standards Gradually mentioned on the agenda, the first research project of the International Bureau of Weights and Measures after its establishment in 1999 was the analysis of trace ozone and the establishment of measurement base standards. China has successively promulgated a series of trace ozone analysi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation device for producing stable ozone mixed gas by using low-pressure mercury lamp radiation method, photosensitive detection control technology and gas dynamic quantitative dilution technology at normal temperature and pressure, so as to solve the problem that the trace ozone standard gas cannot be used by the usual method. Disadvantages of standard gas configuration methods for preparation, storage, and transportation

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