A high-pressure ion air knife
By introducing a high-voltage ion generator into the air knife to produce positive and negative ions, the problem of poor performance of the air knife in cleaning statically charged dust is solved, achieving a more effective dust cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIABOYU MASCH TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-30
Smart Images

Figure CN224439265U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air knives, specifically relating to a high-pressure ion air knife. Background Technology
[0002] An air knife is an industrial device that, after compressed air enters the air knife, blows out at high speed through a thin sheet of air with a thickness of only 0.05 mm. This thin sheet of air can draw in 30-40 times the amount of ambient air, forming a thin, high-intensity, large-airflow impact air curtain.
[0003] Existing air knives are not very effective at cleaning dust with static electricity because the dust and the surface they come into contact with have static electricity, causing the dust to adhere to the product surface. Airflow alone cannot blow the dust away. Therefore, to solve this problem, it is necessary to remove the static electricity from the dust surface in order to effectively clean the dust. Utility Model Content
[0004] The purpose of this invention is to provide a high-pressure ion air knife that can effectively remove dust with static electricity.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is a high-pressure ion air knife, including an air knife shell, an air inlet and an air outlet. The key structural feature is that a high-pressure ion generator capable of generating positive and negative ions is installed inside the air knife shell, and the airflow is discharged from the air outlet after passing through the high-pressure ion generator.
[0006] Furthermore, a guide plate is installed inside the air knife housing, located between the ion bar and the air outlet, through which the airflow passes when it is discharged.
[0007] Furthermore, the high-voltage ion generator is an ion rod with a vent on it. An ion emission needle is installed inside the vent, and the airflow passes through the vent and comes into contact with the ion emission needle.
[0008] Furthermore, an adjustment plate is provided at the air outlet, which can adjust the gap of the air outlet from 0.5mm to 5mm.
[0009] Furthermore, the ion rod is connected to a high-voltage wire. When the high-voltage wire is energized, positive and negative ions are generated through the ion emission needle. The high-voltage wire passes through the air knife housing.
[0010] Compared with the prior art, the beneficial effects of this utility model are: a high-voltage ion generator is added inside the air knife shell. This high-voltage ion generator can generate positive and negative ions. After the airflow passes through the high-voltage ion generator, the airflow will carry positive and negative ions. When the positive and negative ions come into contact with the dust, they neutralize the positive and negative ions on the surface of the dust, so that the dust is not static electricity, thereby cleaning the static dust better. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0014] Among them, 1-air knife shell, 2-sealing plate, 3-adjusting plate, 4-ion rod, 5-high voltage line, 6-ion emission needle, 7-guide plate, 8-fixing screw. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.
[0016] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0018] See Figures 1 to 3 As shown, a high-pressure ion air knife includes an air knife shell 1, which is a tube. Both ends of the air knife shell 1 are connected to sealing plates 2. At this time, there is a cavity inside the air knife shell 1. The air knife shell 1 is provided with an air inlet and an air outlet. Compressed gas enters into the cavity of the air knife shell 1 through the air inlet and then exits through the air outlet. An adjusting plate 3 is installed at the air outlet. The adjusting plate 3 is movably connected to the air knife shell 1. By adjusting the adjusting plate 3, the gap width of the air outlet can be changed. The adjustment range is between 0.5mm and 5mm, thereby adjusting the thickness of the discharged airflow sheet.
[0019] A high-voltage ion generator is installed inside the air knife housing 1. The high-voltage ion generator is an ion rod 4 that can generate positive and negative ions. The end of the ion rod 4 is fixedly connected to the sealing plate 2, and a high-voltage wire 5 is connected to the ion rod. The high-voltage wire 5 passes through the sealing plate 2. A vent is provided on the ion rod 4, and an ion emission needle 6 is provided inside the vent. When the high-voltage wire 5 is energized, the ion emission needle 6 inside the ion rod 4 will generate positive and negative ions. The airflow entering from the air inlet passes through the ion rod 4 and comes into contact with the ion emission needle 6. The airflow mixes with the positive and negative ions and is discharged from the air outlet. At this time, the airflow sheet contains a mixture of positive and negative ions. When the airflow sheet comes into contact with dust, the positive and negative ions in the airflow sheet neutralize the positive and negative ions on the surface of the dust, thus facilitating the cleaning of dust.
[0020] Inside the aforementioned air knife housing 1, a guide plate 7 is also provided. When the air outlet faces downward, the guide plate 7 is located below the ion rod 4. At this time, the guide plate 7 is located between the ion rod 4 and the air outlet. When the airflow passing through the ion rod 4 needs to be discharged, the airflow will pass through the guide plate 7. During the process, the airflow impacts the guide plate 7 and can disperse the ion wind. After passing through the secondary cavity to concentrate the air, the blown ion wind becomes more uniform and is then blown out from the air outlet on the air knife housing 1.
[0021] In addition, in this application, a fixing screw 8 is provided on the air knife housing 1, which is used to install and position the air knife housing 1. The injection angle of the airflow blades can be changed by rotating the fixing screw 8.
[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.
Claims
1. A high-pressure ion air knife, comprising an air knife shell, the air knife shell being a tube body, both ends of the air knife shell being fitted with sealing plates, and the air knife shell being provided with an air inlet and an air outlet, characterized in that: The air knife housing is equipped with a high-voltage ion generator that can generate positive and negative ions. After the airflow passes through the high-voltage ion generator, it is discharged from the air outlet. The high-voltage ion generator is an ion rod. The end of the ion rod is fixedly connected to the sealing plate. A vent is provided on the ion rod, and an ion emission needle is provided inside the vent. The airflow passes through the vent and comes into contact with the ion emission needle. The air knife housing is equipped with a guide plate, which is located between the ion bar and the air outlet. When the airflow is discharged, it passes through the guide plate.
2. The high-pressure ion air knife according to claim 1, characterized in that: An adjustment plate is provided at the air outlet, which can adjust the gap of the air outlet to 0.5mm-5mm.
3. The high-pressure ion air knife according to claim 1, characterized in that: The ion rod is connected to a high-voltage line. When the high-voltage line is energized, positive and negative ions are generated through the ion emission needle. The high-voltage line passes through the air knife housing.