CN-121988473-A - Nozzle structure and atomizing device

CN121988473ACN 121988473 ACN121988473 ACN 121988473ACN-121988473-A

Abstract

The application relates to a nozzle structure and an atomization device, wherein the nozzle structure is provided with a mixing cavity, a liquid inlet channel communicated with the mixing cavity, at least one group of air flow channels, an air outlet channel communicated with the mixing cavity and the outside atmosphere, wherein the two sub air flow channels of the same group of air flow channels are oppositely arranged at two sides of the mixing cavity in a first direction and are arranged at two sides of a central point of the mixing cavity in a second direction in a staggered manner, and the first direction and the second direction extend along a radial direction of the mixing cavity respectively and are mutually perpendicular. Above-mentioned nozzle structure, compare in the setting mode that two sub-air current passageway mirror images set up, can reduce the collision loss of the air current that two sub-air current passageways carried, improved the gaseous phase shear rate to atomizing medium, gaseous phase energy utilization rate risees, has further strengthened the impact shear force of air current to the liquid film simultaneously, and then reaches better atomization effect.

Inventors

CHEN XINGYU
Lin Zuopiao
JI YUXUAN
XU ZHIFENG
LEI GUILIN

Assignees

深圳摩尔雾化健康医疗科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (10)

1. A nozzle arrangement, the nozzle arrangement comprising: A mixing chamber; the liquid inlet channel is communicated with the mixing cavity and is used for conveying an atomization medium to the mixing cavity; At least one group of air flow channels, each group of air flow channels comprises two sub-air flow channels, the two sub-air flow channels are respectively communicated with the mixing cavity, the air flow channels are used for conveying air flow to the mixing cavity so as to atomize atomized medium entering the mixing cavity from the liquid inlet channel, and The air outlet channel is communicated with the mixing cavity and the external atmosphere; the two sub-air flow channels of the same group of air flow channels are oppositely arranged at two sides of the mixing cavity in the first direction and are arranged at two sides of the central point of the mixing cavity in a staggered manner in the second direction; the first direction and the second direction extend along the radial direction of the mixing cavity respectively and are mutually perpendicular.
2. The nozzle arrangement of claim 1, wherein the nozzle arrangement comprises a plurality of sets of the gas flow passages, all of the sub-gas flow passages being circumferentially spaced along the mixing chamber.
3. The nozzle arrangement of claim 1, wherein the sub-gas flow passages extend along a straight line in a radial direction of the mixing chamber.
4. The nozzle arrangement of claim 1, wherein two of said sub-air flow passages in each set of said air flow passages are parallel to each other.
5. The nozzle arrangement of claim 1, wherein in each set of said gas flow passages, the central axes of both said sub-gas flow passages are equidistant from the center point of said mixing chamber.
6. A nozzle arrangement according to claim 1, wherein the distance between the central axes of two of said sub-gas flow channels in each set of said gas flow channels is between 0.1mm and 0.4mm.
7. The nozzle arrangement according to any one of claims 1 to 6, characterized in that the nozzle arrangement comprises a nozzle and a cover that are mutually coupled, the cover and the nozzle being jointly configured to form the mixing chamber, the liquid inlet channel, the gas flow channel and the gas outlet channel.
8. The nozzle arrangement of claim 7, wherein the nozzle is an interference fit with the upper cap.
9. The nozzle structure of claim 7, wherein the liquid inlet channel is formed in the nozzle, the gas outlet channel is formed in the upper cover, and the mixing chamber and the gas flow channel are formed between the nozzle and the upper cover.
10. An atomising device comprising a nozzle arrangement according to any one of claims 1 to 9, the atomising device further comprising an air supply arrangement in communication with the air flow channel of the nozzle arrangement, the air supply arrangement being arranged to provide a high velocity air flow to the air flow channel.

Description

Nozzle structure and atomizing device Technical Field The application relates to the technical field of atomization, in particular to a nozzle structure and an atomization device. Background The atomizing device is a device for forming aerosol by heating or ultrasonic treatment of the stored nebulizable medium. Nebulizable media comprises aerosol-generating substrates of liquid, gel, paste or solid. For a non-Newtonian fluid atomization medium with high viscosity, due to the high viscosity and complex and changeable rheological properties, a gas-liquid two-phase flow technology is generally utilized to atomize the atomization medium, namely, under the joint participation of the atomization medium and gas, the high-speed impact of the gas is utilized to drive the atomization medium to move forwards to form a gas-liquid mixed fluid, and under the actions of collision, shearing and friction of the high-speed gas, the atomization medium is forced to overcome the surface tension of liquid under high-pressure load to finish the phenomenon that liquid drops are broken to form liquid particles. However, due to structural defects, the existing gas-liquid two-phase flow atomization device has large gas flow loss in the atomization process and low gas phase energy utilization rate, so that the atomization effect cannot meet the requirements. Disclosure of Invention Accordingly, it is necessary to provide a nozzle structure and an atomizer for the problems of high gas flow loss and low gas phase energy utilization rate of the gas-liquid two-phase flow atomizer. According to one aspect of the present application, there is provided a nozzle structure having: A mixing chamber; the liquid inlet channel is communicated with the mixing cavity and is used for conveying an atomization medium to the mixing cavity; At least one group of air flow channels, each group of air flow channels comprises two sub-air flow channels, the two sub-air flow channels are respectively communicated with the mixing cavity, the air flow channels are used for conveying air flow to the mixing cavity so as to atomize atomized medium entering the mixing cavity from the liquid inlet channel, and The air outlet channel is communicated with the mixing cavity and the external atmosphere; the two sub-air flow channels of the same group of air flow channels are oppositely arranged at two sides of the mixing cavity in the first direction and are arranged at two sides of the central point of the mixing cavity in a staggered manner in the second direction; the first direction and the second direction extend along the radial direction of the mixing cavity respectively and are mutually perpendicular. In one embodiment, the nozzle structure comprises a plurality of groups of the air flow channels, and all the sub air flow channels are arranged at intervals along the circumference of the mixing cavity. In one embodiment, the sub-air flow channels extend along a radial straight line of the mixing chamber. In one embodiment, two of the sub-air flow channels in each set of the air flow channels are parallel to each other. In one embodiment, in each set of the air flow channels, the central axes of the two sub air flow channels are equidistant from the center point of the mixing chamber. In one embodiment, in each group of the air flow channels, the distance between the central axes of the two sub air flow channels is 0.1mm-0.4mm. In one embodiment, the nozzle structure includes a nozzle and a cap that are mated to each other, the cap and the nozzle being cooperatively configured to form the mixing chamber, the liquid inlet channel, the gas flow channel, and the gas outlet channel. In one embodiment, the nozzle is an interference fit with the upper cap. In one embodiment, the liquid inlet channel is formed in the nozzle, the air outlet channel is formed in the upper cover, and the mixing cavity and the air flow channel are formed between the nozzle and the upper cover. According to another aspect of the present application there is provided an atomising device comprising a nozzle arrangement as described above, the atomising device further comprising an air supply arrangement in communication with the air flow channel of the nozzle arrangement, the air supply arrangement being arranged to provide a high velocity air flow to the air flow channel. In the nozzle structure, because the two sub-air flow channels of the same group of air flow channels are oppositely arranged on two sides of the mixing cavity in the first direction and are arranged on two sides of the central point of the mixing cavity in a staggered manner in the second direction, compared with the arrangement mode that the two sub-air flow channels are arranged in the same straight mirror image, the collision loss of air flows conveyed by the two sub-air flow channels can be effectively reduced, the gas phase shearing speed of an atomizing medium is further improved, the gas phase energy utilization rate o