Novel bubble atomizing nozzle

Abstract

The utility model discloses a novel bubble atomizing nozzle which comprises a nozzle body, the nozzle body comprises a liquid phase main flow area, a gas phase injection area and a mixing cavity, a liquid passing opening is formed in the middle of the liquid phase main flow area, a gas passing opening is formed in the gas phase injection area, and a gas injection hole is formed in the mixing cavity. A conical acceleration section is integrally formed at the front end of the mixing cavity, a nozzle throat part is arranged at the end of the conical acceleration section, and liquid enters the liquid phase main flow area through a liquid passing opening. According to the novel bubble atomizing nozzle, a bubble atomizing experimental device is built according to the working characteristics of the bubble atomizing nozzle, the bubble atomizing experimental device mainly comprises a gas path and a liquid path, and the gas path and the liquid path are communicated with each other except that an air compressor provides a gas-phase working medium and provides power for a coating pump and the coating pump provides a liquid-phase working medium. The gas path and the liquid path are mainly composed of a pressure reducing valve, a pressure maintaining valve, a needle valve, a rotor flow meter, a pressure gauge and other instruments, and performance testing can be better carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizing nozzles, in particular to a novel bubble atomizing nozzle. Background Art

[0002] The bubble atomizing nozzle is a new type of atomizing nozzle. It has attracted widespread attention due to its simple structure, low working pressure, low gas consumption and high atomization quality. Atomization technology refers to the process of injecting liquid into the surrounding environment through a nozzle, breaking it into countless discrete small droplets under the action of external force. Atomization technology is widely used and is closely related to people's lives and production. With the continuous development of science and technology, people's requirements for the manufacturing process of bubble atomizing nozzles are getting higher and higher.

[0003] The existing atomizing nozzles have certain drawbacks when used. At present, scholars' research on bubble atomizing nozzles focuses on the differences in nozzle atomization effects under different conditions, but lacks research on the influence of different gas-liquid two-phase flow patterns in the nozzle mixing chamber on the nozzle atomization effect. Since there are many factors affecting the performance of bubble atomizing nozzles and the gas-liquid two-phase mixing situation in the mixing chamber is relatively complex, the performance prediction of nozzles is not yet fully mature, and the performance of the designed and processed nozzles needs to be evaluated through experiments, which has brought certain adverse effects to the actual use process. For this reason, we propose a new type of bubble atomizing nozzle. Utility Model Content

[0004] Technical problems solved: In view of the shortcomings of the existing technology, the utility model provides a new type of bubble atomizing nozzle. According to the working characteristics of the bubble atomizing nozzle, a bubble atomizing experimental device is built, which mainly includes two gas-liquid circuits. In addition to the air compressor providing gaseous working medium and providing power for the paint pump and the paint pump providing liquid working medium, the gas-liquid circuits are mainly composed of pressure reducing valves and pressure stabilizing valves, needle valves, rotor flow meters, pressure gauges and other instruments, which can better carry out performance testing and effectively solve the problems in the background technology.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new type of bubble atomizing nozzle, including a nozzle body, the nozzle body including a liquid phase mainstream area, a gas phase injection area and a mixing chamber, a liquid port is provided in the middle of the liquid phase mainstream area, an air vent is provided on the gas phase injection area, an air injection hole is provided inside the mixing chamber, a conical acceleration section is integrally formed at the front end of the mixing chamber, and a nozzle throat is provided at the end of the conical acceleration section.

[0006] Preferably, the liquid phase mainstream area, the gas phase injection area, the mixing chamber, the conical acceleration section and the nozzle throat are integrally formed by die casting.

[0007] Preferably, the position of the liquid phase mainstream area enters the liquid through a liquid inlet, the position of the gas phase injection area enters the gas through a vent, and the mixing chamber, the conical acceleration section and the nozzle throat are connected.

[0008] Preferably, the nozzle body is connected to a bubble atomization experimental device, which includes an air circuit and a liquid circuit, wherein the air circuit is provided with a first pressure gauge, a gas rotor flowmeter, a first needle valve, a pressure reducing valve, an air compressor and a power supply, and the liquid circuit is provided with a second pressure gauge, a liquid rotor flowmeter, a second needle valve, a pressure stabilizing valve, a paint pump and a water supply tank.

[0009] Preferably, the power supply is connected to an air compressor, the air compressor is connected to a pressure reducing valve, the pressure reducing valve is connected to a first needle valve, the first needle valve is connected to a gas rotor flowmeter, the gas rotor flowmeter is connected to a first pressure gauge, the first pressure gauge is connected to the nozzle body, the power supply provides electrical energy to the air compressor, the pressure reducing valve outputs air pressure and passes through the pressure reducing valve, the first needle valve, the gas rotor flowmeter and the first pressure gauge in sequence into the interior of the nozzle body.

[0010] Preferably, the water supply tank is connected to the paint pump, the paint pump is connected to the pressure regulating valve, the pressure regulating valve is connected to the second needle valve, the second needle valve is connected to the liquid rotor flowmeter, the liquid rotor flowmeter is connected to the second pressure gauge, the second pressure gauge is connected to the nozzle body, the water supply tank provides water to the paint pump, the paint pump outputs water and passes through the pressure regulating valve, the second needle valve, the liquid rotor flowmeter and the second pressure gauge in sequence into the interior of the nozzle body.

[0011] Beneficial effects: Compared with the existing technology, the utility model provides a new type of bubble atomizing nozzle with the following beneficial effects: This new type of bubble atomizing nozzle, according to the working characteristics of the bubble atomizing nozzle, builds a bubble atomizing experimental device, mainly including two gas-liquid circuits. In addition to the air compressor providing gaseous working medium and providing power for the paint pump and the paint pump providing liquid working medium, the gas-liquid circuits are mainly composed of pressure reducing valves and pressure stabilizing valves, needle valves, rotor flow meters, pressure gauges and other instruments, which can better carry out performance testing. The entire bubble atomizing nozzle has a simple structure, is easy to operate, and has better use effects than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a new type of bubble atomizing nozzle of the utility model.

[0013] Figure 2 This is a structural schematic diagram of a cross-sectional view of a novel bubble atomizing nozzle of the present invention.

[0014] Figure 3 This is a schematic diagram of the structure of a mixing chamber in a novel bubble atomizing nozzle of the utility model.

[0015] Figure 4 This is a structural schematic diagram of a bubble atomization experimental device in a novel bubble atomization nozzle of the utility model.

[0016] In the figure: 1. Nozzle body; 2. Liquid phase mainstream area; 3. Gas phase injection area; 4. Mixing chamber; 5. Conical acceleration section; 6. Nozzle throat; 7. Vent; 8. Liquid port; 9. Gas injection hole; 10. First pressure gauge; 11. Gas rotor flowmeter; 12. First needle valve; 13. Pressure reducing valve; 14. Air compressor; 15. Power supply; 16. Paint pump; 17. Water supply tank; 18. Pressure regulating valve; 19. Second needle valve; 20. Liquid rotor flowmeter; 21. Second pressure gauge. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-4 As shown, a new type of bubble atomizing nozzle includes a nozzle body 1, which includes a liquid phase mainstream area 2, a gas phase injection area 3 and a mixing chamber 4. A liquid port 8 is provided in the middle of the liquid phase mainstream area 2, an air vent 7 is provided on the gas phase injection area 3, and an air injection hole 9 is provided inside the mixing chamber 4. The front end of the mixing chamber 4 is integrally formed with a conical acceleration section 5, and the end of the conical acceleration section 5 is provided with a nozzle throat 6. According to the working characteristics of the bubble atomizing nozzle, a bubble atomizing experimental device is built, which mainly includes two gas-liquid circuits. In addition to the air compressor providing gas phase working medium and providing power for the paint pump and the paint pump providing liquid phase working medium, the gas-liquid circuits are mainly composed of pressure reducing valves and pressure stabilizing valves, needle valves, rotor flowmeters, pressure gauges and other instruments to better perform performance tests.

[0021] Furthermore, the liquid phase mainstream area 2, the gas phase injection area 3, the mixing chamber 4, the conical acceleration section 5 and the nozzle throat 6 are integrally formed by die-casting.

[0022] Furthermore, the position of the liquid phase mainstream area 2 enters the liquid through the liquid inlet 8, the position of the gas phase injection area 3 enters the gas through the vent 7, and the mixing chamber 4, the conical acceleration section 5 and the nozzle throat 6 are connected.

[0023] Furthermore, the nozzle body 1 is connected to a bubble atomization experimental device, which includes an air circuit and a liquid circuit, wherein the air circuit is provided with a first pressure gauge 10, a gas rotor flowmeter 11, a first needle valve 12, a pressure reducing valve 13, an air compressor 14 and a power supply 15, and the liquid circuit is provided with a second pressure gauge 21, a liquid rotor flowmeter 20, a second needle valve 19, a pressure regulating valve 18, a paint pump 16 and a water supply tank 17.

[0024] Furthermore, the power supply 15 is connected to the air compressor 14, the air compressor 14 is connected to the pressure reducing valve 13, the pressure reducing valve 13 is connected to the first needle valve 12, the first needle valve 12 is connected to the gas rotor flowmeter 11, the gas rotor flowmeter 11 is connected to the first pressure gauge 10, the first pressure gauge 10 is connected to the nozzle body 1, the power supply 15 provides electrical energy to the air compressor 14, the pressure reducing valve 13 outputs air pressure and passes through the pressure reducing valve 13, the first needle valve 12, the gas rotor flowmeter 11 and the first pressure gauge 10 in sequence into the interior of the nozzle body 1.

[0025] Furthermore, the water supply tank 17 is connected to the paint pump 16, the paint pump 16 is connected to the pressure regulating valve 18, the pressure regulating valve 18 is connected to the second needle valve 19, the second needle valve 19 is connected to the liquid rotor flowmeter 20, the liquid rotor flowmeter 20 is connected to the second pressure gauge 21, the second pressure gauge 21 is connected to the nozzle body 1, and the water supply tank 17 provides water to the paint pump 16, and the paint pump 16 outputs water and passes through the pressure regulating valve 18, the second needle valve 19, the liquid rotor flowmeter 20 and the second pressure gauge 21 in sequence into the interior of the nozzle body 1.

[0026] Working principle: The utility model includes a nozzle body 1, a liquid phase mainstream area 2, a gas phase injection area 3, a mixing chamber 4, a conical acceleration section 5, a nozzle throat 6, an air vent 7, a liquid port 8, an air injection hole 9, a first pressure gauge 10, a gas rotor flowmeter 11, a first needle valve 12, a pressure reducing valve 13, an air compressor 14, a power supply 15, a paint pump 16, a water supply tank 17, a pressure regulating valve 18, a second needle valve 19, a liquid rotor flowmeter 20, and a second pressure gauge 21. According to the working characteristics of the bubble atomizing nozzle, it mainly includes a liquid phase pipeline and a gas phase pipeline. The constant pressure gas source provided by the air compressor is divided into two paths through a tee. One path is used as the gas phase working medium, and after passing through a pressure reducing valve, a needle valve and a gas rotor flowmeter, it is introduced into the gas phase inlet of the bubble atomizing nozzle; the other path provides gas source power for the paint pump, and the paint pump sucks the material and outputs the liquid phase, and after passing through a pressure stabilizing valve, a needle valve and a liquid rotor flowmeter, it is introduced into the liquid phase inlet of the bubble atomizing nozzle. At the same time, pressure gauges are provided on the gas and liquid two-phase nozzle inlet pipelines to monitor the two-phase injection pressure to ensure that the gas phase injection pressure is slightly greater than the liquid phase injection pressure. Finally, by adjusting the gas and liquid two-phase supply pressures and the pipeline valve opening, stable atomization of the liquid phase at the nozzle outlet is achieved.

[0027] According to the needs of the bubble atomization nozzle jet atomization experimental research, the design of the bubble atomization nozzle and the construction of the bubble atomization device were studied. The work carried out is as follows:

[0028] According to the structural characteristics and design requirements of the bubble atomizer nozzle, with reference to the empirical formulas of previous bubble atomizer nozzle designs and the general specifications of nozzle design, the main structural parameters of the bubble atomizer nozzle were calculated and analyzed, such as: liquid and gas phase inlet diameters, tapered section angle, throat length and nozzle outlet diameter, air injection hole diameter, number and spacing, mixing chamber diameter and length, and a bubble atomizer nozzle with a flow rate of 200kg / h was designed and processed.

[0029] Based on the operating characteristics of the bubble atomizer nozzle, a bubble atomization experimental setup was constructed, primarily consisting of two gas-liquid circuits. In addition to an air compressor providing the gaseous working medium, powering the paint pump, and the paint pump providing the liquid working medium, the gas-liquid circuits primarily consisted of a pressure reducing valve, a pressure-stabilizing valve, a needle valve, a rotameter, a pressure gauge, and other instrumentation. Finally, the rotameter calculated the gas-liquid flow rate based on actual operating conditions.

[0030] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including a..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A novel bubble atomizing nozzle, comprising a nozzle body (1), characterized in that: The nozzle body (1) comprises a liquid phase mainstream area (2), a gas phase injection area (3) and a mixing chamber (4); a liquid through port (8) is provided in the middle of the liquid phase mainstream area (2); a vent (7) is provided on the gas phase injection area (3); a gas injection hole (9) is provided inside the mixing chamber (4); a conical acceleration section (5) is integrally formed at the front end of the mixing chamber (4); and a nozzle throat (6) is provided at the end of the conical acceleration section (5).

2. A novel bubble atomizing nozzle according to claim 1, characterized in that: The liquid phase mainstream area (2), the gas phase injection area (3), the mixing chamber (4), the conical acceleration section (5) and the nozzle throat (6) are integrally formed by die-casting.

3. The novel bubble atomizing nozzle according to claim 1, characterized in that: The position of the liquid phase mainstream area (2) is for liquid to enter through the liquid opening (8), the position of the gas phase injection area (3) is for gas to enter through the vent (7), and the mixing chamber (4), the conical acceleration section (5) and the nozzle throat (6) are connected.

4. The novel bubble atomizing nozzle according to claim 1, characterized in that: The nozzle body (1) is connected to a bubble atomization experimental device, which includes an air circuit and a liquid circuit, wherein the air circuit is provided with a first pressure gauge (10), a gas rotor flowmeter (11), a first needle valve (12), a pressure reducing valve (13), an air compressor (14) and a power supply (15), and the liquid circuit is provided with a second pressure gauge (21), a liquid rotor flowmeter (20), a second needle valve (19), a pressure stabilizing valve (18), a paint pump (16) and a water supply tank (17).

5. The novel bubble atomizing nozzle according to claim 4, characterized in that: The power supply (15) is connected to an air compressor (14), the air compressor (14) is connected to a pressure reducing valve (13), the pressure reducing valve (13) is connected to a first needle valve (12), the first needle valve (12) is connected to a gas rotor flowmeter (11), the gas rotor flowmeter (11) is connected to a first pressure gauge (10), the first pressure gauge (10) is connected to a nozzle body (1), the power supply (15) provides electrical energy to the air compressor (14), the pressure reducing valve (13) outputs air pressure and enters the interior of the nozzle body (1) through the pressure reducing valve (13), the first needle valve (12), the gas rotor flowmeter (11) and the first pressure gauge (10) in sequence.

6. The novel bubble atomizing nozzle according to claim 4, characterized in that: The water supply tank (17) is connected to the paint pump (16), the paint pump (16) is connected to the pressure-stabilizing valve (18), the pressure-stabilizing valve (18) is connected to the second needle valve (19), the second needle valve (19) is connected to the liquid rotor flowmeter (20), the liquid rotor flowmeter (20) is connected to the second pressure gauge (21), the second pressure gauge (21) is connected to the nozzle body (1), the water supply tank (17) provides a water source to the paint pump (16), the paint pump (16) outputs the water source and enters the interior of the nozzle body (1) through the pressure-stabilizing valve (18), the second needle valve (19), the liquid rotor flowmeter (20) and the second pressure gauge (21) in sequence.

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