A high-efficiency atomization device

Abstract

The present invention discloses a kind of high-efficiency atomizing device, including ultrasonic transducer, cavity, upper cover plate, lower cover plate, compressed air inlet and liquid injection port, ultrasonic transducer is located at cavity bottom for generating ultrasonic atomization;Liquid injection port is located at cavity bottom, controls liquid to enter and exit cavity;Upper cover plate and lower cover plate are arranged on cavity upper end and collide and break mist droplets;Compressed air inlet is located at cavity bottom, is used to control the injection of compressed air, drives mist droplets to collide with upper cover plate and lower cover plate;Upper cover plate and lower cover plate are coated with super-hydrophobic coating, can prevent droplet attachment, and accelerate the impact crushing of droplet;Upper cover plate and lower cover plate constitute droplet rebound impact area, and atomized droplet is impacted and broken repeatedly thereon and becomes smaller.The present invention drives mist to discharge upward by compressed air, makes mist collide with upper and lower cover plates, forms smaller mist droplet, ensures the size controllability, speed controllability and stability of mist droplet.

Description

Technical Field

[0001] The present invention relates to the field of atomization, and in particular to a high-efficiency atomization device. Background Art

[0002] The nebulizer is a device that atomizes the test solution. It is a critical component of the atomization system, and its performance significantly impacts measurement precision and chemical interference. Therefore, the nebulizer must provide stable spray, small, uniform droplets, and high atomization efficiency.

[0003] Common atomizers include ultrasonic atomizers, jet atomizers, and vibrating mesh atomizers. The core components of all ultrasonic atomizers include ultrasonic transducers. Since the atomized droplets generated by ultrasonic transducers are large, they can easily cause problems such as nozzle blockage and high maintenance costs.

[0004] How to provide a simple, compact, safe, reliable, efficient and energy-saving atomization device, which can make the droplets formed by atomization smaller and more uniform while ensuring the sealing and stability of the device, reduce maintenance costs and improve atomization efficiency has become an urgent problem to be solved. Summary of the Invention

[0005] In order to overcome a series of defects in the prior art, the purpose of the present invention is to provide a high-efficiency atomization device for the above-mentioned problems, including an ultrasonic transducer 5, a cavity 2, an upper cover plate 4, a lower cover plate 3, a compressed air inlet 1 and a liquid injection port 6, characterized in that:

[0006] The ultrasonic transducer 5 is arranged at the bottom of the cavity 2 and is used to generate ultrasonic atomization in the cavity 2;

[0007] The liquid injection port 6 is provided at the bottom of the cavity 2 and is used to control the liquid to flow into or out of the cavity 2;

[0008] The upper cover plate 4 and the lower cover plate 3 are sequentially arranged at the upper end of the cavity 2 from top to bottom, and are used to impact and break the mist droplets. The upper cover plate 4 and the lower cover plate 3 constitute a droplet rebound impact area. The atomized droplets are repeatedly impacted and broken between the upper cover plate 4 and the lower cover plate 3 to form droplets of smaller size.

[0009] The compressed air inlet 1 is provided at the bottom of the cavity 2 for controlling the injection of compressed air and driving the mist droplets to collide with the upper cover plate 4 and the lower cover plate 3 .

[0010] Preferably, the outer radius R of the upper cover plate 4 is the same as the outer radius R of the lower cover plate 3 , and the radius R is half of the diameter of the cavity 2 .

[0011] Preferably, the upper cover plate 4 has conical bosses with a bottom diameter d=1 / 3R-1 / 5R uniformly distributed along the circumferential direction at a distance S from its center, the value of S is 1 / 3R to 2 / 3R, and the cone apex angle range of the conical bosses is 130°-170°.

[0012] Preferably, the upper cover plate 4 has through holes evenly distributed along the circumferential direction at a distance S from the center of the circle.

[0013] Preferably, the lower cover plate 3 is a conical structure with a flat surface.

[0014] Preferably, the cone angle θ of the lower cover plate 3 is 150°-175°.

[0015] Preferably, the lower cover plate 3 has through holes with a diameter of d=1 / 3R-1 / 5R uniformly distributed along the circumferential direction at a distance S from the center of the circle.

[0016] Preferably, the distance between the upper cover plate 4 and the lower cover plate 3 is 5 mm-15 mm.

[0017] Preferably, both the upper cover plate 4 and the lower cover plate 3 are coated with a super-hydrophobic coating to prevent the adhesion of droplets and accelerate the impact and breakage of droplets.

[0018] Preferably, the axis of the cavity 2 passes through the axis of the ultrasonic transducer 5 .

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1): The present invention provides a high-efficiency atomization device, which uses an ultrasonic transducer to generate ultrasonic atomization in a cavity, and uses compressed air to drive the mist upward and discharge it, so that the atomized droplets hit the upper cover and the lower cover to form smaller mist droplets. This device ensures the size controllability, speed controllability and stability of the mist droplets;

[0021] 2): The present invention provides a high-efficiency atomization device, wherein the upper cover plate and the lower cover plate form a droplet rebound impact area, and the atomized droplets are repeatedly impacted and broken between the upper cover plate and the lower cover plate to form droplets of smaller size;

[0022] 3): The present invention provides a high-efficiency atomization device, which can prevent droplets from adhering and accelerate the impact and breakage of droplets by coating the upper cover plate and the lower cover plate with a super-hydrophobic coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cross-sectional schematic diagram of a high-efficiency atomization device of the present invention;

[0024] Figure 2 This is a structural schematic diagram of an upper cover plate of a high-efficiency atomization device of the present invention;

[0025] Figure 3 This is a structural schematic diagram of a lower cover plate of a high-efficiency atomization device of the present invention.

[0026] The accompanying drawings are denoted as follows:

[0027] 1- compressed air inlet, 2- cavity, 3- lower cover, 4- upper cover, 5- ultrasonic transducer, 6- liquid injection port, 7- connecting line. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Throughout the drawings, identical or similar reference numerals represent identical or similar elements or elements having identical or similar functions. The described embodiments are only some, not all, of the embodiments of the present invention.

[0029] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0030] The embodiments and directional terms described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0031] A high-efficiency atomization device of the present invention is described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-3 As shown, a high-efficiency atomization device includes an ultrasonic transducer 5, a cavity 2, an upper cover plate 4, a lower cover plate 3, a compressed air inlet 1 and a liquid injection port 6, characterized in that:

[0033] The ultrasonic transducer 5 is disposed at the bottom of the cavity 2 and is used to generate ultrasonic atomization in the cavity 2. The ultrasonic transducer 5 is connected to an external power supply via a connecting line 7.

[0034] The liquid injection port 6 is provided at the bottom of the cavity 2 and is used to control the liquid to flow into or out of the cavity 2;

[0035] The upper cover plate 4 and the lower cover plate 3 are sequentially arranged at the upper end of the cavity 2 from top to bottom, and are used to impact and break the mist droplets. The upper cover plate 4 and the lower cover plate 3 constitute a droplet rebound impact area. The atomized droplets impact and break on the upper cover plate 4 and the lower cover plate 3 multiple times, forming droplets of smaller size.

[0036] The compressed air inlet 1 is provided at the bottom of the cavity 2 for controlling the injection of compressed air and driving the mist droplets to collide with the upper cover plate 4 and the lower cover plate 3 .

[0037] Preferably, the outer radius R of the upper cover plate 4 is the same as the outer radius R of the lower cover plate 3 , and the radius R is half of the diameter of the cavity 2 .

[0038] Preferably, the upper cover plate 4 has conical bosses with a bottom diameter d=1 / 3R-1 / 5R uniformly distributed along the circumferential direction at a distance S from its center, the value of S is 1 / 3R to 2 / 3R, and the cone apex angle range of the conical bosses is 130°-170°.

[0039] Preferably, the upper cover plate 4 has through holes evenly distributed along the circumferential direction at a distance S from the center of the circle.

[0040] Preferably, the lower cover plate 3 is a conical structure with a flat surface.

[0041] Preferably, the cone angle θ of the lower cover plate 3 is 150°-175°.

[0042] Preferably, the lower cover plate 3 has through holes with a diameter of d=1 / 3R-1 / 5R uniformly distributed along the circumferential direction at a distance S from the center of the circle.

[0043] Preferably, the distance between the upper cover plate 4 and the lower cover plate 3 is 5 mm-15 mm.

[0044] Preferably, both the upper cover plate 4 and the lower cover plate 3 are coated with a super-hydrophobic coating to prevent the adhesion of droplets and accelerate the impact and breakage of droplets.

[0045] Preferably, the axis of the cavity 2 passes through the axis of the ultrasonic transducer 5 .

[0046] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-efficiency atomization device, comprising an ultrasonic transducer (5), a cavity (2), an upper cover (4), a lower cover (3), a compressed air inlet (1) and a liquid injection port (6), characterized in that: The ultrasonic transducer (5) is arranged at the bottom of the cavity (2) and is used to generate ultrasonic atomization in the cavity (2); The liquid injection port (6) is provided at the bottom of the cavity (2) and is used to control the liquid to flow into or out of the cavity (2); The upper cover plate (4) and the lower cover plate (3) are sequentially arranged at the upper end of the cavity (2) from top to bottom, and are used to impact and break up the mist droplets; The compressed air inlet (1) is arranged at the bottom of the cavity (2) and is used to control the injection of compressed air and drive the mist droplets to collide with the upper cover plate (4) and the lower cover plate (3); The upper cover plate (4) is provided with conical bosses with a bottom diameter d=1 / 3R-1 / 5R uniformly distributed along the circumferential direction at a distance S from the center of the circle, and the cone apex angle of the conical bosses ranges from 130° to 170°; The upper cover plate (4) has through holes evenly distributed along the circumferential direction at a distance S from the center of the circle; The lower cover plate (3) is a conical structure with a flat surface; The cone angle θ of the lower cover plate (3) is 150°-175°; The lower cover plate (3) has through holes with a diameter of d=1 / 3R-1 / 5R evenly distributed along the circumferential direction at a distance S from the center of the circle; The upper cover plate (4) and the lower cover plate (3) are both coated with a super-hydrophobic coating.

2. A high-efficiency atomization device according to claim 1, characterized in that: The outer radius R of the upper cover plate (4) is the same as the outer radius R of the lower cover plate (3), and the radius R is half the diameter of the cavity (2).

3. A high-efficiency atomization device according to any one of claims 1-2, characterized in that: The distance between the upper cover plate (4) and the lower cover plate (3) is 5 mm to 15 mm.

4. A high-efficiency atomization device according to any one of claims 1-2, characterized in that: The axis of the cavity (2) passes through the axis of the ultrasonic transducer (5).

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