Cellular nozzle

Abstract

The invention discloses a cellular nozzle to solve the problem that nozzle coverage area and impact force are unmatched. The cellular nozzle comprises a hollow body provided with a feed end and a discharge end, the wall of the discharge end is provided with a plurality of through holes, and the through holes are obliquely arranged in the wall so that an angle of 0-10 DEG for the nozzle is formed. The cellular nozzle is used for liquid nitrogen vaporization and can provide atomization with suitable coverage area and impact force.

Description

technical field [0001] The invention relates to the field of vaporization equipment, in particular to a nozzle. Background technique [0002] The nozzle is a key component in many kinds of spraying, spraying, oil spraying, sandblasting, spraying and other equipment, and plays an important role. Liquid nitrogen is inert, colorless, odorless, non-corrosive, non-flammable, and has a very low temperature, with a boiling point of -196°C under normal pressure. [0003] In some special application fields, people need to quickly obtain a large amount of low-temperature nitrogen instead of liquid nitrogen. For example, in satellite environmental simulation experiments that require high temperature control accuracy, it is necessary to quickly obtain a large amount of nitrogen instead of liquid nitrogen. Because if the liquid nitrogen is sprayed, the vaporization of the liquid nitrogen will cause the temperature to be too low instantaneously, the experimental conditions will be destro...

AI Technical Summary

Problems solved by technology

In the prior art, although the atomization effect of the first type of nozzle is good, the coverage area is large, which will cause liquid nitrogen to be sprayed onto the surrounding tube wall, affecting the vaporization effect

If you want to avoid this defect, you must make the diameter of the pipeline very large, which requires a higher space for the system. At the same time, when the inner diameter of the pipeline is greater than 150mm, it needs to be designed according to the pressure pipeline, and the cost will increase rapidly.

The second type of nozzle, although the coverage area is small, but because it sprays out a small liquid column, the coverage area of ​​the injection is far from meeting the heat exchange requirements of liquid nitrogen vaporization

Moreover, the sprayed liquid column has a strong impact force, which will also cause certain wear and tear on the inside of the pipe.

At the same time, such a small nozzle hole makes the spray volume very small, which is far from meeting the demand for spray volume in the field of liquid nitrogen vaporization.

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