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Ultrafine atomization nozzle applied to spray freeze drying device

A spray freeze-drying and atomizing nozzle technology, which is used in spray devices, liquid spray devices, drying solid materials, etc., can solve problems such as difficulty in achieving high-quality atomization, and achieve the effect of improving neutrality and uniformity.

Active Publication Date: 2020-06-19
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide an ultra-fine atomizing nozzle applied to a spray freeze drying device, and to solve the problem that the existing nozzle scheme has a relatively small liquid flow rate and pressure supply condition. Difficulty in achieving high-quality atomization

Method used

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  • Ultrafine atomization nozzle applied to spray freeze drying device
  • Ultrafine atomization nozzle applied to spray freeze drying device
  • Ultrafine atomization nozzle applied to spray freeze drying device

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] Such as figure 1 As shown, the present invention provides an ultra-fine atomizing nozzle applied to a spray freeze-drying device, including a gas path...

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Abstract

The invention discloses an ultrafine atomization nozzle applied to a spray freeze drying device; and the nozzle is suitable for providing an uniform ultrafine atomization condition for preparation ofmultiple biological aerosol samples such as bacteria, virus, endospore and toxin. The nozzle comprises a gas path joint, a nozzle body, a liquid path joint, a spray head, a sealing ring and a tightening nut; and under a lower liquid flow and lower gas pressure, a liquid column jet flow is collided through stabilization and impact effects of cyclone gas to intensify instability of the jet flow, sothat droplets are broken and dispersed, and the collision polymerization of the droplets is effectively prevented, high-quality uniform atomization is generated, and a condition is provided for preparation of uniform fine frozen aerosol particles under an ultralow-temperature environment.

Description

technical field [0001] The invention relates to an ultrafine atomization nozzle applied to a spray freeze drying device, which is suitable for providing uniform ultrafine atomization for the preparation of various biological aerosol samples such as bacteria, viruses, spores, toxins and the like. Background technique [0002] Spray ultra-low temperature quick-freezing-vacuum freeze-drying cascade coupling aerosolizable biological particle dry powder preparation technology is divided into two key steps: the liquid biological sample is atomized into fine mist droplets through the atomization nozzle, and the mist is atomized through the ultra-low temperature environment formed by liquid nitrogen. Drop quick freezing forms fine frozen particles; the frozen particles are subjected to vacuum freeze-drying through the principle of sublimation, and finally dry fine particles are obtained. Among them, the design of the atomizing nozzle device is the key technology. [0003] Liquid at...

Claims

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Application Information

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IPC IPC(8): B05B7/06B05B7/08B05B7/10F26B5/06
CPCB05B7/066B05B7/0807B05B7/10F26B5/06
Inventor 张榛陈君汪旭东汪凤山杨文慧
Owner BEIJING INST OF CONTROL ENG
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