A pneumatic atomization device

Abstract

The utility model discloses a pneumatic atomization device, which relates to the technical field of atomizers, and comprises a wind wheel, the surface of which is provided with a radial or radially oriented plane; an air blowing port, through which airflow is introduced to blow the wind wheel to rotate, and the airflow acts on the plane force; and a main shaft, which is transmission-fixedly connected to the wind wheel and the atomization disk. The utility model adopts pneumatics to avoid the flammability and explosion of small-sized motors, and the air path is not easily damaged even if it is corroded, thereby extending the service life and improving safety. The airflow drive is adopted, which can reduce the temperature of the bearings and further extend the service life.

Description

Technical Field

[0001] The utility model relates to the technical field of atomizers, in particular to a pneumatic atomizing device. Background Art

[0002] Atomizer is used to atomize the test liquid or material. There are many types of atomizers according to different uses, such as air humidifiers, medical atomizers, etc. The principle is that when the liquid is sent to the high-speed rotating disk, it stretches into a thin film on the rotating surface and moves toward the edge of the disk at an increasing speed. When it leaves the edge of the disk, the liquid is atomized. Existing atomizers are generally driven by electricity, which must use a motor. In the field of industrial atomization, the atomizer may face a high temperature environment. The sparks and high temperatures generated by the motor during operation may ignite the surrounding flammable gas or dust, thereby causing an explosion accident. Therefore, an explosion-proof motor is generally used. However, since a small-sized atomizer requires a small-sized motor, and a small-sized motor is difficult to be equipped with an explosion-proof structure, the small-sized motor is severely restricted by high-temperature, flammable and explosive working conditions. In addition, many materials atomized by industrial atomizers are corrosive and have water vapor. The material of the motor is easily corroded and damaged, and even causes serious accidents. In addition, since the transmission shaft of the atomizer is constantly rotating, the bearings at the connection will continue to heat up, further aggravating the high temperature environment and resulting in a short service life of the bearings. Utility Model Content

[0003] Technical problems to be solved by utility models

[0004] In response to the technical problems of how to adapt to high-temperature, flammable and explosive environments and reduce the probability of motors being corroded and damaged, the utility model provides a pneumatic atomization device, which uses pneumatics to avoid the flammability and explosion of small-sized motors. Even if the air path is corroded, it is not easily damaged, thereby extending the service life and improving safety. It uses airflow drive to cool the bearings, further extending the service life.

[0005] Technical Solution

[0006] In order to solve the above problems, the technical solution provided by the utility model is:

[0007] A pneumatic atomization device comprises a wind wheel, the surface of which is provided with a radial or radially oriented plane; an air blowing port, through which air is introduced to blow the wind wheel to rotate, and the air flow acts on the plane; and a main shaft, which is transmission-fixedly connected to the wind wheel and the atomization disk.

[0008] The wind wheel is used to withstand the blowing of the airflow and rotate itself, driving the main shaft to rotate, and the main shaft drives the atomizing disk to rotate to achieve atomization. The surface of the wind wheel is provided with radial or radial planes. When the airflow enters through the blowing port and contacts these planes, a force will be generated to drive the wind wheel to rotate. The blowing port is the entrance of the airflow, which is usually connected to a high-pressure air source. When the airflow is ejected from the blowing port at high speed, a strong force will be formed to drive the wind wheel to rotate. The main shaft plays the role of connecting the wind wheel and the atomizing disk, and is also the power transmission component of the entire device. The rotation of the wind wheel is transmitted to the atomizing disk through the main shaft, causing the atomizing disk to rotate accordingly. The atomizing disk is usually designed with tiny holes or sharp-edged structures. When the liquid is sent into the center of the atomizing disk and rotates at high speed, the liquid will be thrown out by centrifugal force, and after passing through the holes or edges on the atomizing disk, it will be dispersed into fine droplets, thereby achieving the effect of atomization.

[0009] Optionally, the air outlet is connected to an air inlet pipe.

[0010] The intake pipe is used for intake air.

[0011] Optionally, a circumferential groove is provided on the circumference of the wind wheel, and an inner wall of the groove is a radial or radially oriented plane.

[0012] The grooves are used to form a plane so that the airflow can blow the wind wheel efficiently.

[0013] Optionally, the air outlet direction of the air outlet is arranged perpendicular to the inner wall of the groove.

[0014] The wind force of the airflow acts completely on the inner wall of the groove, and will not lose part of the kinetic energy due to the oblique angle, so the wind wheel can be blown more efficiently.

[0015] Optionally, a distribution disk is provided above the atomizing disk.

[0016] Evenly distribute liquid: The distribution plate is located above the atomizer plate, and its main function is to evenly distribute the liquid on the entire surface of the atomizer plate. This ensures that the liquid can evenly cover all parts of the atomizer plate during the atomization process, resulting in a more uniform and consistent atomization effect. Control droplet size and distribution: By adjusting the design of the distribution plate, such as the size, shape and distribution of the holes, the distribution pattern of the liquid on the atomizer plate can be controlled, which in turn affects the size and distribution of the final atomized droplets. This is very important for atomization requirements in different applications, such as fine spray or atomization effects covering a large area. Improve atomization efficiency: A properly designed distribution plate can increase the contact area and efficiency between the liquid and the atomizer plate, reduce liquid waste, and enable more liquid to be converted into droplets under the action of centrifugal force, thereby improving the overall atomization efficiency. Adapt to liquids of different viscosities: The design of the distribution plate can also be adjusted according to the viscosity of the liquid to adapt to the atomization requirements of different types of liquids. For example, for high-viscosity liquids, larger holes or special distribution structures may be required to ensure that the liquid can be smoothly distributed to the atomizer plate.

[0017] Optionally, a feed pipe is provided above the distribution plate.

[0018] The feed pipe is used to introduce the material that needs to be atomized.

[0019] Optionally, the main shaft is rotatably connected to the housing via a bearing.

[0020] The housing is not only a fixed bracket for the bearing, but also protects the internal components, isolates the external environment, and maintains the stability of the equipment structure. In some specific applications, the housing may also have functions such as heat dissipation and sound insulation. Bearings are used to support rotating parts and allow them to rotate smoothly and with low friction.

[0021] Optionally, a support is provided in the housing, the support is also provided with a bearing, and the support is connected to the main shaft via the bearing.

[0022] Support: The support is an important part of the mechanical structure, mainly used to support the spindle to ensure its stability and positioning accuracy during rotation. The support is fixed inside the housing and can withstand the radial and axial loads generated when the spindle rotates. Bearings are set in the support: The bearings are set inside the support. This design can more accurately control the rotation center of the spindle, reduce the deflection caused by the spindle's own weight or external load, and improve the rotation accuracy. At the same time, the presence of the bearing greatly reduces the friction between the spindle and the support, making the rotation of the spindle smoother and more efficient.

[0023] The support is connected to the spindle through the bearing: this means that the spindle is not in direct hard contact with the support, but is connected through the bearing as an intermediate part. This design has several significant advantages: Reduced wear: As a friction interface, the bearing's good lubrication conditions and wear resistance greatly reduce the wear of the spindle and the support; Improved precision: The high-precision processing and assembly of the bearing can ensure the rotation accuracy of the spindle, which is especially important for applications that require high-precision rotation; Easy maintenance: After the bearing is damaged or worn, it can be replaced relatively easily without having to replace the entire spindle or support, reducing maintenance costs and downtime; Enhanced stability: By setting the bearing on the support, additional stability support can be provided for the high-speed rotating spindle, especially in the presence of vibration or unbalanced loads, which helps to maintain the dynamic balance of the system.

[0024] Beneficial Effects

[0025] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0026] The technical solution provided by the utility model utilizes the energy of the airflow to drive the wind wheel to rotate, which in turn drives the atomizing disk to rotate at high speed, atomizing the liquid into fine particles, avoiding the flammability and explosion of small-sized motors. Even if the air path is corroded, it is not easy to be damaged, thus extending the service life and improving safety. The use of airflow drive can reduce the temperature of the bearings, further extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of a pneumatic atomization device proposed in an embodiment of the utility model;

[0028] Figure 2 A cross-sectional view of a wind wheel of a pneumatic atomization device proposed in an embodiment of the utility model;

[0029] 1. Outer shell; 2. Support; 3. Wind wheel; 31. Groove; 4. Air inlet pipe; 5. Air outlet; 6. Feed pipe; 7. Main shaft; 8. Distribution plate; 9. Atomizing plate. DETAILED DESCRIPTION

[0030] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0031] Example

[0032] Combined with Figure 1, a pneumatic atomization device, including a shell 1, a support 2, a wind wheel 3, a groove 31, an air inlet pipe 4, an air port 5, a feed pipe 6, a main shaft 7, a distribution plate 8 and an atomizing plate 9. The shell 1 includes a conical shell and a shell cover located at the upper part, which are connected by bolts. The air inlet pipe 4 and the feed pipe 6 are both passed into the shell 1 through the shell cover. The support 2 is fixedly connected to the upper part of the shell 1. The support 2 is bowl-shaped, and the bowl mouth and the bowl bottom are both provided with bearings. The main shaft 7 is rotatably connected to the support 2 through two bearings, and axial limit can also be achieved. The wind wheel 3 is located on the main shaft 7 between the two bearings. The wind wheel 3 and the main shaft 7 are fixedly connected by a locking sleeve. The end of the locking sleeve is a conical thread, which can be tightened after tightening. The lower end of the main shaft 7 is connected to the atomizing plate 9, and the atomizing plate 9 rotates with the main shaft 7. The distribution plate 8 is fixedly connected to the bottom of the shell, above the atomizing plate 9. The atomizing plate 9 at the bottom of the main shaft 7 is fixed by a limit nut.

[0033] The main shaft 7 is transmission-fixedly connected to the wind wheel 3 and the atomizing disk 9. The main shaft 7 serves to connect the wind wheel 3 and the atomizing disk 9, and is also a power transmission component of the entire device. The rotation of the wind wheel 3 is transmitted to the atomizing disk 9 through the main shaft 7, so that the atomizing disk 9 rotates accordingly.

[0034] The air outlet 5 is connected to the air inlet pipe 4. The air outlet 5 is not directed toward the center of the wind wheel 3, but obliquely toward the circumferential edge of the wind wheel 3, thereby improving the aerodynamic efficiency.

[0035] A distribution plate 8 is provided above the atomizing plate 9. The distribution plate 8 is located above the atomizing plate 9, and its main function is to evenly distribute the liquid on the surface of the entire atomizing plate 9. This ensures that during the atomization process, the liquid can evenly cover all parts of the atomizing plate 9, thereby producing a more uniform and consistent atomization effect. Control droplet size and distribution: By adjusting the design of the distribution plate 8, such as the size, shape and distribution of the holes, the distribution pattern of the liquid on the atomizing plate 9 can be controlled, thereby affecting the final droplet size and distribution after atomization. This is very important for atomization requirements in different application scenarios, such as fine spray or atomization effects covering a large area.

[0036] A feed pipe 6 is provided above the distribution plate 8. Materials entering through the feed pipe 6 fall onto the distribution plate 8.

[0037] The main shaft 7 is rotatably connected to the housing 1 through a bearing. The rotational connection between the main shaft 7 and the housing 1 is achieved through the bearing, that is, the main shaft 7 can rotate freely in the bearing, while the housing 1 is fixed. This design allows the main shaft 7 to maintain stable rotation while bearing a load, reducing energy loss and extending the service life of the equipment.

[0038] A support 2 is provided in the housing 1 , and the support 2 is also provided with a bearing. The support 2 is connected to the main shaft 7 via the bearing.

[0039] Combined with Figure 2 The wind wheel 3 is provided with a radial or radially biased plane on its surface. The air outlet 5 allows air flow to blow the wind wheel 3 to rotate, and the air flow acts on the plane force. A surrounding groove 31 is provided on the circumference of the wind wheel 3, and the inner wall of the groove 31 is a radial or radially biased plane. The air outlet direction of the air outlet 5 is perpendicular to the inner wall of the groove 31. The wind force of the air flow acts on the plane as vertically or close to the vertical direction as possible, and the plane is radial or biased to the radial direction, so that the torque formed by the wind force can drive the wind wheel 3 to rotate as efficiently as possible, which is beneficial to improving the aerodynamic efficiency and allowing the atomizer disk 9 to obtain a high speed. The groove 31 is semicircular, the straight part is a plane, and the arc part is a concave arc surface, and the wind force acts on the plane.

[0040] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A pneumatic atomization device, characterized in that: include A wind wheel, the surface of which is provided with a radial or radially oriented plane; The air outlet is used to introduce air flow to drive the wind wheel to rotate, and the air flow acts on the plane; The main shaft is transmission-fixedly connected to the wind wheel and the atomizing disk.

2. A pneumatic atomization device according to claim 1, characterized in that: The air blowing port is connected with an air inlet pipe.

3. A pneumatic atomization device according to claim 1, characterized in that: A surrounding groove is provided on the circumference of the wind wheel, and the inner wall of the groove is a radial or radially oriented plane.

4. A pneumatic atomization device according to claim 3, characterized in that: The air outlet direction of the air outlet is arranged perpendicular to the inner wall of the groove.

5. A pneumatic atomization device according to claim 1, characterized in that: A distribution plate is arranged above the atomizing plate.

6. A pneumatic atomization device according to claim 5, characterized in that: A feeding pipe is arranged above the distribution plate.

7. A pneumatic atomization device according to any one of claims 1 to 6, characterized in that: The main shaft is rotatably connected to the housing through a bearing.

8. A pneumatic atomization device according to claim 7, characterized in that: A support is arranged in the shell, and the support is also provided with a bearing, and the support is connected to the main shaft through the bearing.

Images