Scanning type nozzle atomizing field for drop grain size and concentration space distribution analyzer

Abstract

The utility model relates to a scanning nozzle atomization field droplet size and concentration space distribution analyzer, which is used in the technical field of measuring instruments. The invention includes: a programmable control rail frame, two fine-tuning supports, an optical sensor for particle size and concentration, an A / D converter and a computer. Among them, the particle size and concentration optical sensor is a separate structure, consisting of a transmitting end and a receiving end. The photoelectric signal is connected to the input end of the A / D converter through the wire, and the digital signal output by the A / D converter is transmitted to the computer through the wire. The invention is mainly applied to the spray field research of various nozzles, and has no special requirements for the working medium of the nozzles, and can even be used to measure the particle size and concentration spatial distribution of solid particles in the gas-solid two-phase jet flow, with a large sampling area, The concentration measurement error is small, the measurement process is easy to automate, and the experimental measurement cycle is short.

Description

technical field [0001] The invention relates to an analyzer for the spatial distribution of droplet size and concentration, in particular to an analyzer for the spatial distribution of droplet size and concentration in the atomization field of a scanning nozzle. Used in the technical field of measuring instruments. Background technique [0002] Nozzles are widely used in many industrial fields such as chemical industry, energy, and environmental protection. The sprayed droplet particles and concentration and their spatial distribution have a great influence on the performance of the nozzle. At the same time, the physical process of spraying is very complicated. At this stage, it is still difficult to accurately solve the particle and concentration in the droplet field and its spatial distribution by purely relying on theoretical methods. Experimental measurement is still one of the main means in this kind of research and application work. The spray process is a dynamic gas-...

AI Technical Summary

Problems solved by technology

The shortcomings of this instrument are mainly reflected in: small measurement area, high spatial resolution, but also sacrifices the representativeness of the measurement data, the error is large when the measurement data is used to calculate the concentration; for the measurement of non-spherical particles As a result, it is difficult to give a reasonable particle size explanation, and the measurement error of non-spherical particles is relatively large; PDA is a point measurement technology, and the measurement period to complete a spray field is relatively long

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