Separating drum for oil mist separator
By using an external filter structure composed of stainless steel and polyurethane filters, combined with the design of a uniform airflow cylinder and a flow divider, the problems of easy clogging and high maintenance costs of oil mist separators are solved, achieving high stability and minimal airflow reduction.
Patent Information
- Application Number
- CN202520172970.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-25
AI Technical Summary
Existing oil mist separators are prone to clogging, have complex structures, and are costly to maintain, resulting in increased wind resistance and reduced airflow.
It adopts an external filter structure composed of stainless steel filter screen and polyurethane filter screen, combined with the design of air distribution screen cylinder and flow divider plate, to filter large particulate impurities and capture oil mist particles. The air distribution hole diameter gradually increases to compensate for the decrease in suction power, and the flow divider plate divides the flow at a 120° angle.
It improves the stability of the separator, reduces the risk of blockage, lowers maintenance costs, and maintains stable airflow.
Smart Images
Figure CN223832024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil mist separators, and in particular to a separation drum for an oil mist separator. Background Technology
[0002] Oil mist separators are indispensable equipment in industrial production, widely used in machining, metal processing, and other fields. Their main function is to collect and separate oil mist generated during processing to protect the environment, improve the working environment, and ensure the normal operation of equipment. However, existing oil mist separators have many problems in use and urgently need improvement.
[0003] First, oil mist adheres to the filter, easily causing blockage, leading to increased air resistance, reduced airflow, and significant vibration problems. Second, existing oil mist separators have complex structures, are expensive, and have high maintenance costs. Utility Model Content
[0004] The main objective of this invention is to provide a separating drum for an oil mist separator, which addresses the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A separating drum for an oil mist separator includes an induced draft impeller. A cylindrical stainless steel filter screen is connected below the induced draft impeller, and an end cap is provided below the stainless steel filter screen. A polyurethane filter screen is installed inside the stainless steel filter screen, and an air distribution screen cylinder is installed inside the polyurethane filter screen. Multiple flow dividers are installed inside the air distribution screen cylinder. The air distribution screen cylinder has multiple air distribution holes, with the hole diameter gradually increasing from top to bottom.
[0007] The stainless steel filter screen filters out large particles and provides support for the polyurethane filter screen in the middle. The polyurethane filter screen has a certain thickness and its function is to capture and filter oil mist particles in the air. The air distribution mesh cylinder is made of rolled sheet metal and is used to support the cylindrical rotating body composed of the stainless steel filter screen and the polyurethane filter screen.
[0008] Furthermore, there are 3 diverter plates, with adjacent diverter plates forming a 120° angle.
[0009] Furthermore, the wind-distributing mesh cylinder is equipped with a limiting block, and the end cap is provided with a slot that cooperates with the limiting block.
[0010] Furthermore, the air distribution screen cylinder has multiple screw holes, in which screws are installed to tighten the stainless steel filter screen outwards.
[0011] Furthermore, a splitter bracket is installed on the upper part of the splitter plate.
[0012] This invention also includes other components that enable the separating drum of the oil mist separator to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not specified in this invention all employ conventional techniques in the art, such as the induced draft impeller in this application. In specific implementation, appropriate device or component models can be selected according to the specific working scenario.
[0013] The working principle of this invention is as follows: A stainless steel filter screen is used to filter large particles and provide support for the intermediate polyurethane filter screen. The polyurethane filter screen has a certain thickness and its function is to capture and filter oil mist particles in the air. The air distribution mesh cylinder is made of rolled sheet metal and is used to support the cylindrical rotating body composed of the stainless steel and polyurethane filter screens. The air distribution holes on the air distribution mesh cylinder have gradually increasing diameters from top to bottom, which can compensate for the reduction in suction force away from the impeller. Diverter plates evenly distributed at a 120° angle divide the air duct into three independent channels, reducing pressure loss caused by internal air vortices.
[0014] Compared with existing technologies, this utility model has the following advantages: 1. High stability, not easy to clog, and guaranteed air volume: Adopting an external filter structure, it is not prone to filter clogging and dynamic balance failure due to the accumulation of oil sludge after long-term use. 2. Simple structure, low cost, and easy maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the external structure of this utility model.
[0016] Figure 2 This is a cross-sectional view of the present invention.
[0017] Figure 3 This is a schematic diagram of the structure of the uniform airflow net cylinder of this utility model.
[0018] Figure 4 This is a schematic diagram of the end cap structure of this utility model.
[0019] In the diagram: 1. Exhaust fan impeller; 2. Stainless steel filter screen; 3. Polyurethane filter screen; 4. Air distribution screen cylinder; 41. Air distribution hole; 42. Screw hole; 43. Limiting block; 5. Diverter plate; 6. Diverter plate bracket; 7. End cap; 8. Slot. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0021] Example:
[0022] like Figures 1-4As shown, a separating drum for an oil mist separator includes an induced draft impeller 1. A cylindrical stainless steel filter screen 2 is connected below the induced draft impeller 1, and an end cap 7 is provided below the stainless steel filter screen 2. A polyurethane filter screen 3 is installed inside the stainless steel filter screen 2, and a uniform air distribution screen cylinder 4 is installed inside the polyurethane filter screen 3. Multiple flow divider plates 5 are installed inside the uniform air distribution screen cylinder 4. The flow divider plates 5 are vertically and evenly distributed at the center of the uniform air distribution screen cylinder 4. Multiple uniform air distribution holes 41 are opened on the uniform air distribution screen cylinder 4, and the diameter of the holes 41 gradually increases from top to bottom.
[0023] Specifically, there are 3 diverter plates 5, and the two adjacent diverter plates 5 form a 120° angle.
[0024] In addition, the uniform air distribution screen cylinder 4 has multiple screw holes 42, in which screws for tightening the stainless steel filter screen 2 are installed. The uniform air distribution screen cylinder 4 is provided with a limiting block 43, and the end cover 7 has a slot 8 that mates with the limiting block 43. A diverter plate bracket 6 is installed on the upper end of the diverter plate 5.
[0025] The working principle of the separation drum for an oil mist separator of this utility model is as follows: A stainless steel filter screen 2 is used to filter large particulate impurities and provides support for the polyurethane filter screen 3 in the middle. The polyurethane filter screen 3 has a certain thickness and its function is to capture and filter oil mist particles in the air. The air distribution screen cylinder 4 is made of rolled sheet metal and is used to support the cylindrical rotating body composed of the stainless steel filter screen 2 and the polyurethane filter screen 3. The air distribution holes 41 opened on the air distribution screen cylinder 4 have a gradually increasing diameter from top to bottom, which can compensate for the reduction in suction force away from the impeller 1. The diverter plates 5, evenly distributed at a 120° angle, divide the air duct into three independent channels, reducing the pressure loss caused by internal air vortices.
[0026] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.
Claims
1. A separating drum for an oil mist separator, comprising an induced draft impeller (1), characterized in that: Below the impeller (1) is a cylindrical stainless steel filter screen (2), and below the stainless steel filter screen (2) is an end cap (7); inside the stainless steel filter screen (2) is a polyurethane filter screen (3), inside the polyurethane filter screen (3) is a uniform air distribution screen (4), inside the uniform air distribution screen (4) are multiple flow dividers (5); the flow dividers (5) are vertically evenly distributed at the center of the uniform air distribution screen (4); multiple air distribution holes (41) are opened on the uniform air distribution screen (4), and the diameter of the air distribution holes (41) gradually increases from top to bottom.
2. The separating drum for an oil mist separator according to claim 1, characterized in that: The diverter plate (5) is provided in 3 pieces, and the two adjacent diverter plates (5) are at a 120° angle.
3. The separating drum for an oil mist separator according to claim 1, characterized in that: The uniform airflow cylinder (4) is provided with a limiting block (43), and the end cap (7) is provided with a slot (8) that cooperates with the limiting block (43).
4. The separating drum for an oil mist separator according to claim 1, characterized in that: The uniform air filter cylinder (4) has multiple screw holes (42), and screws for tightening the stainless steel filter screen (2) are installed in the screw holes (42).
5. The separating drum for an oil mist separator according to claim 1, characterized in that: A splitter bracket (6) is installed on the upper end of the splitter plate (5).