Self-circulation oil mist purification device

Abstract

The utility model belongs to air purification technical field especially is a kind of self-circulation oil mist purification device, including main body bin, still include: primary filter bin, purification bin and gas guide bin, are arranged one by one in the inside of main body bin from left to right;Filter mechanism is arranged in the inside of primary filter bin.Sealing plate, rotary connection is in the one side of primary filter bin, and the outside rotary connection of purification bin has door plate piece.The utility model, by "front filter+high pressure electrostatic purification+rear filter+active carbon adsorption" four-stage processing flow, the low concentration oil smoke oil mist that can effectively purify the diffusion in machining workshop, wherein high pressure electrostatic purification unit can handle minimum 0.01 μm pollutant particle, purification efficiency can reach more than 95%, solve the defect that only single machining equipment can be aimed at by existing equipment;And device is collected by the oil collection groove of multiple groups of intercommunication, and waste oil generated by filtration and electrostatic adsorption is discharged uniformly by blowdown pipeline, realizes resource recycling.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically a self-circulating oil mist purification device. Background Technology

[0002] With the acceleration of social industrialization, the problem of oil fume and oil mist pollution in CNC machining workshops has become increasingly prominent. This type of pollution not only affects the workshop working environment but may also pose potential health hazards to operators. Currently, most oil mist purification equipment on the market is designed for a "one-to-one" approach, meaning it only collects and purifies oil mist from a single machining machine and cannot cover the entire machining workshop space. It lacks effective means to control oil fumes and mist that have escaped and permeated the workshop.

[0003] In industrial production processes, machining, lubricating oil atomization, and other procedures generate a large amount of oil mist. If this mist is directly released into the air, it will not only pollute the working environment and harm the health of operators, but also waste oil. Filtering with only a single filter level cannot effectively remove tiny oil mist particles, resulting in low purification efficiency. Furthermore, the airflow circulation path is chaotic, and some devices rely on external air ducts to achieve airflow, leading to high energy consumption and the inability to achieve a self-circulating closed loop of "inhalation-purification-exhaust," thus greatly reducing their applicability.

[0004] Therefore, we propose a self-circulating oil mist purification device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a self-circulating oil mist purification device, which solves the problems mentioned in the background technology, such as the single filtration level, the inability to effectively remove tiny oil mist particles through a single-stage filter, low purification efficiency, chaotic airflow circulation path, and the high energy consumption and inability to achieve a self-circulating closed loop of "inhalation-purification-exhaustion", which greatly reduces its applicable scope.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A self-circulating oil mist purification device includes a main chamber and further includes:

[0010] The primary filter chamber, purification chamber, and air guide chamber are arranged one by one inside the main chamber from left to right. An air intake is provided on one side of the primary filter chamber.

[0011] The filtration mechanism, located inside the primary filtration chamber, is used to filter the gas entering the primary filtration chamber.

[0012] The sealing plate is rotatably connected to one side of the primary filtration chamber, and the door panel is rotatably connected to the outside of the purification chamber.

[0013] Furthermore, the filtration mechanism includes a pre-filter, an oil mist pipe, an oil collection tank, and a post-filter. The pre-filter is slidably engaged inside the primary filtration chamber on the side near the air intake. The oil mist pipe is connected to the lower end of the pre-filter. The oil collection tank is fixed inside the primary filtration chamber. The post-filter is slidably engaged inside the primary filtration chamber on the side away from the pre-filter.

[0014] Furthermore, the filtration mechanism also includes a flow equalization filter, an ionization chamber, and a high-voltage electrostatic generator. The flow equalization filter is located in the center of the primary filter chamber, and the ionization chamber is located on the other side of the flow equalization filter. The flow equalization filter and the ionization chamber are located in the center of the pre-filter and the post-filter. The high-voltage electrostatic generator is located at the upper end of the sealing plate and is connected to the flow equalization filter and the ionization chamber.

[0015] Furthermore, the oil collection tank is located at the lower end of the pre-filter, oil mist pipe, post-filter, flow equalization filter and ionization chamber. There are three sets of oil collection tanks connected to each other, and one end of the bottommost oil collection tank is connected to a sewage pipe.

[0016] Furthermore, the purification chamber is internally fitted with an activated carbon mesh, and the cross-section of the activated carbon mesh is a "W" shaped structure.

[0017] Furthermore, the air guide chamber includes a drive motor, a fan blade, a baffle plate, and an exhaust port. The drive motor is fixed inside one side of the air guide chamber, the fan blade is fixed at the output end of the drive motor, the baffle plate is fixed inside the air guide chamber, and the baffle plates are staggered inside the air guide chamber. The exhaust port is opened on the upper surface of the air guide chamber.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a self-circulating oil mist purification device, which has the following features:

[0020] Beneficial effects:

[0021] This invention employs a four-stage treatment process—pre-filtration, high-voltage electrostatic purification, post-filtration, and activated carbon adsorption—to effectively purify low-concentration oil fumes and mists permeating machining workshops. The high-voltage electrostatic purification unit can handle pollutant particles as small as 0.01μm, achieving a purification efficiency of over 95%, overcoming the limitation of existing equipment that can only target a single processing machine. Furthermore, the device collects waste oil generated from filtration and electrostatic adsorption through multiple interconnected oil collection tanks, and discharges it for recycling via a unified sewage pipe, achieving resource reuse. Simultaneously, the device eliminates hazardous waste generated by mechanical filter consumables, reducing solid waste treatment costs and the risk of secondary pollution.

[0022] This invention features a standard modular design for the pre-filter, post-filter, and activated carbon filter, all connected by sliding rails. The number of modules can be increased or decreased according to the workshop's airflow requirements (e.g., increasing the number of ionization chambers and activated carbon filters), adapting to the purification needs of workshops of different sizes. Furthermore, the stainless steel pre-filter, post-filter, and ionization chamber can all be quickly disassembled for cleaning, and the activated carbon filter can be directly pulled out for replacement without disassembling the entire device. The independent design of the sealing plate and door further enhances the convenience of maintenance and operation. Attached Figure Description

[0023] Figure 1 This is a top view schematic diagram of the self-circulating oil mist purification device of this utility model;

[0024] Figure 2 This is a right-side view of the self-circulating oil mist purification device of this utility model;

[0025] Figure 3 This is a front view schematic diagram of the self-circulating oil mist purification device of this utility model;

[0026] Figure 4 This is a schematic diagram of the internal cross-section of the self-circulating oil mist purification device of this utility model.

[0027] In the diagram: 1. Main compartment; 101. Sealing plate; 102. Door panel; 2. Primary filter compartment; 3. Purification compartment; 4. Air guide compartment; 5. Air intake; 6. Pre-filter; 7. Oil mist duct; 8. Oil collection tank; 9. Flow equalization filter; 10. Ionization chamber; 11. Post-filter; 12. Activated carbon mesh; 13. Drive motor; 14. Fan blades; 15. Baffle; 16. Exhaust port; 17. High-voltage electrostatic generator; 18. Sewage pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example

[0030] like Figure 1-4 As shown, an embodiment of this utility model discloses a self-circulating oil mist purification device, which includes a main chamber 1 and further includes:

[0031] The primary filter chamber 2, the purification chamber 3, and the air guide chamber 4 are arranged one by one inside the main chamber 1 from left to right. An air intake 5 is provided on one side of the primary filter chamber 2.

[0032] The outer main chamber 1 is the overall shell of the device. Inside, from left to right, there are a primary filter chamber 2, an inner purification chamber 3, and an air guide chamber 4. The three are sealed together by a sheet metal structure to form a continuous airflow channel. The left side wall of the primary filter chamber 2 has an air intake 5. The air intake 5 adopts a labyrinth structure design, which can guide the oil fumes and oil mist in the workshop into the device smoothly, while reducing the interference of external impurities.

[0033] The filtration mechanism, located inside the primary filtration chamber 2, is used to filter the gas entering the primary filtration chamber 2. The filtration mechanism includes a pre-filter 6, an oil mist pipe 7, an oil collection tank 8, and a post-filter 11. The pre-filter 6 is slidably engaged inside the primary filtration chamber 2 on the side near the air intake 5. The oil mist pipe 7 is connected to the lower end of the pre-filter 6. The oil collection tank 8 is fixed inside the primary filtration chamber 2. The post-filter 11 is slidably engaged inside the primary filtration chamber 2 on the side away from the pre-filter 6. It is made of stainless steel and has a standard modular structure, slidably engaged inside the primary filtration chamber 2 near the air intake via a slide rail. One side of the port 5 can be quickly pulled out and disassembled; the pre-filter 6 has a mesh size of 50-100μm and is used to intercept large oil droplets in the fumes and mist; the oil mist pipe 7 is connected to the lower end of the pre-filter 6 via a flange at its upper end and extends into the oil collection tank 8 at its lower end, and is used to guide the large oil droplets intercepted by the pre-filter 6 to the oil collection tank 8; the post-filter 11 is slidably clipped into the primary filter chamber 2 on the side away from the pre-filter 6, i.e. the right side of the ionization chamber 10, via a slide rail, and its material is the same as that of the pre-filter 6, with a mesh size of 20-50μm, and is used to intercept the tiny oil mist particles that are not adsorbed by the ionization chamber 10.

[0034] The oil collection tank 8 is located at the lower end of the pre-filter 6, oil mist pipe 7, post-filter 11, flow equalization filter 9, and ionization chamber 10. There are three sets of oil collection tanks 8, and multiple sets of oil collection tanks 8 are connected. One end of the bottom oil collection tank 8 is connected to the sewage pipe 18. The oil collection tanks 8 are made of corrosion-resistant metal and are fixed to the bottom inner side of the primary filter chamber 2 and the internal purification chamber 3. There are three sets in total, and the three sets of oil collection tanks 8 are connected to each other through a connecting pipe. The right end of the bottom set of oil collection tanks 8 is connected to the sewage pipe 18, which extends to the outside of the main body chamber 1 for the unified discharge and recycling of the collected waste oil.

[0035] The filtration mechanism also includes a flow equalization filter 9, an ionization chamber 10, and a high-voltage electrostatic generator 17. The flow equalization filter 9 is located in the center of the primary filtration chamber 2, and the ionization chamber 10 is located on the other side of the flow equalization filter 9. The flow equalization filter 9 and the ionization chamber 10 are located in the center of the pre-filter 6 and the post-filter 11. The high-voltage electrostatic generator 17 is located at the upper end of the sealing plate 101 and is connected to the flow equalization filter 9 and the ionization chamber 10. The flow equalization filter 9 is located in the center of the primary filtration chamber 2. The filter is fixed to the inner wall of the primary filter chamber 2 by bolts. It adopts a porous plate structure to evenly distribute the airflow after passing through the pre-filter 6 to the subsequent ionization chamber 10. It is located on the right side of the flow equalization filter 9 and has an ionization electrode and a collecting electrode made of aluminum alloy inside. The ionization chamber 10 is connected to the high-voltage electrostatic generator 17 through wires. Under the action of 12KV high voltage, it can ionize the oil mist particles in the airflow into particles with positive and negative charges, and under the action of the collecting electrode with 6KV high voltage, it can adsorb the charged particles onto the electrode plate.

[0036] A sealing plate 101 is rotatably connected to one side of the primary filter chamber 2, and a door panel 102 is rotatably connected to the outside of the purification chamber 3. The sealing plate 101 is rotatably connected to the front of the primary filter chamber 2. The sealing plate 101 is connected to the primary filter chamber 2 by a hinge and is equipped with a door lock structure. After opening, the filter components inside the primary filter chamber 2 can be disassembled and maintained. The door panel 102 is rotatably connected to the front of the internal purification chamber 3. The door panel 102 also adopts a hinge connection and door lock design, which is used to replace the activated carbon mesh 12 inside the internal purification chamber 3. It is fixed to the inner side of the upper end face of the sealing plate 101 by a bracket. Its output end is connected to the auxiliary electrode of the flow equalization filter 9, the ionization electrode and the collecting electrode of the ionization chamber 10 by wires, respectively, to provide an ionization voltage of 8-12KVDC and a collecting voltage of 4-6KVDC to the ionization chamber 10.

[0037] An activated carbon mesh 12 is slidably attached inside the purification chamber 3, and the activated carbon mesh 12 has a "W" shaped cross-section. The activated carbon mesh 12 is slidably attached inside the purification chamber 3 via a slide rail. The activated carbon mesh 12 has a "W" shaped cross-section and is filled with columnar activated carbon. The "W" shaped structure can increase the contact area between the activated carbon mesh 12 and the airflow, thereby improving the odor adsorption efficiency. The activated carbon mesh 12 has handles on both sides for easy removal and replacement from the purification chamber 3.

[0038] The air chamber 4 includes a drive motor 13, a fan blade 14, a baffle 15, and an exhaust port 16. The drive motor 13 is fixed inside the air chamber 4 on one side, the fan blade 14 is fixed to the output end of the drive motor 13, the baffle 15 is fixed inside the air chamber 4, and the baffles 15 are staggered inside the air chamber 4. The exhaust port 16 is located on the upper surface of the air chamber 4. The motor, model Y2-100L1-4, with a rated power of 2.2KW, is fixed to the right side wall inside the air chamber 4 by a motor bracket and is used to drive the fan blade 14. Rotation generates negative pressure, guiding airflow within the device. It is then fixed to the output shaft of the drive motor 13 via a key connection. Employing a centrifugal fan blade structure, it generates stable airflow pressure. Furthermore, the baffle 15, made of thin metal sheet, is staggered and fixed to the inner wall of the air guide chamber 4 to stabilize the airflow passing through the activated carbon mesh 12, preventing exhaust noise caused by airflow turbulence. Simultaneously, a protective mesh is installed inside the baffle 15 located at the center of the upper surface of the air guide chamber 4 to discharge the purified clean air to the workshop or external environment.

[0039] When in use, the device is powered on, and the drive motor 13 drives the fan blade 14 to rotate, generating negative pressure inside the device. Low-concentration oil fumes and mist in the workshop enter the primary filter chamber 2 through the labyrinth-type air intake 5. The oil fumes and mist first pass through the pre-filter 6, where large oil droplets are intercepted. The intercepted oil droplets flow into the oil collection tank 8 through the oil mist pipe 7.

[0040] The airflow after primary filtration enters the flow equalization filter 9 and is evenly distributed to the ionization chamber 10. The high-voltage electrostatic generator 17 provides the ionization chamber 10 with a 12KV ionization voltage and a 6KV collection voltage. The oil mist particles in the airflow are ionized into charged particles and adsorbed onto the collecting electrode. After the adsorbed oil particles gather, they flow along the electrode plate to the oil collection tank 8. Then, the airflow purified by electrostatic filtration passes through the post-filter 11, where residual tiny oil droplets with a particle size greater than 20-50μm are intercepted a second time. The intercepted oil droplets also flow into the oil collection tank 8.

[0041] Meanwhile, the airflow after secondary filtration enters the internal purification chamber 3. Through the "W"-shaped activated carbon mesh 12, odor molecules in the airflow are adsorbed by the activated carbon, thus removing the odor. The clean air after odor removal enters the air guide chamber 4, and after being stabilized by the baffle 15, it is discharged from the exhaust port 16 under the action of the fan blade 14. The waste oil collected in the oil collection tank 8 is discharged through the sewage pipe 18 for recycling.

[0042] Finally, after the device has been running for a period of time, the sealing plate 101 can be opened, the pre-filter 6 and the post-filter 11 can be pulled out, cleaned with a high-pressure water gun and dried. At the same time, check the electrode plates of the ionization chamber 10. If there is a lot of oil, the electrode plates can be removed for cleaning. Also, when the odor removal effect of the activated carbon mesh 12 decreases, open the door plate 102 and pull out the activated carbon mesh 12.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-circulating oil mist purification device, comprising a main chamber (1), characterized in that, Also includes: The primary filter chamber (2), the purification chamber (3) and the air guide chamber (4) are arranged one by one from left to right inside the main chamber (1). An air intake (5) is provided on one side of the primary filter chamber (2). The filtration mechanism is located inside the primary filtration chamber (2) and is used to filter the gas entering the primary filtration chamber (2). A sealing plate (101) is rotatably connected to one side of the primary filter chamber (2), and a door plate (102) is rotatably connected to the outside of the purification chamber (3).

2. The self-circulating oil mist purification device according to claim 1, characterized in that: The filtration mechanism includes a pre-filter (6), an oil mist pipe (7), an oil collection tank (8), and a post-filter (11). The pre-filter (6) is slidably engaged inside the primary filter chamber (2) on the side near the air intake (5). The oil mist pipe (7) is connected to the lower end of the pre-filter (6). The oil collection tank (8) is fixed inside the primary filter chamber (2). The post-filter (11) is slidably engaged inside the primary filter chamber (2) on the side away from the pre-filter (6).

3. The self-circulating oil mist purification device according to claim 2, characterized in that: The filtration mechanism also includes a flow equalization filter (9), an ionization chamber (10), and a high-voltage electrostatic generator (17). The flow equalization filter (9) is located in the center of the primary filter chamber (2). The ionization chamber (10) is located on the other side of the flow equalization filter (9). The flow equalization filter (9) and the ionization chamber (10) are located in the center of the pre-filter (6) and the post-filter (11). The high-voltage electrostatic generator (17) is located at the upper end of the sealing plate (101) and is connected to the flow equalization filter (9) and the ionization chamber (10).

4. The self-circulating oil mist purification device according to claim 3, characterized in that: The oil collection tank (8) is located at the lower end of the pre-filter (6), oil mist pipe (7), post-filter (11), flow equalization filter (9) and ionization chamber (10). The oil collection tank (8) is provided with three sets and multiple sets of oil collection tanks (8) connected together. One end of the bottom oil collection tank (8) is connected to the sewage pipe (18).

5. The self-circulating oil mist purification device according to claim 1, characterized in that: The purification chamber (3) is internally fitted with an activated carbon mesh (12), and the cross-section of the activated carbon mesh (12) is a "W" shaped structure.

6. The self-circulating oil mist purification device according to claim 1, characterized in that: The air guide chamber (4) includes a drive motor (13), a fan blade (14), a baffle (15), and an exhaust port (16). The drive motor (13) is fixed inside the air guide chamber (4) on one side. The fan blade (14) is fixed at the output end of the drive motor (13). The baffle (15) is fixed inside the air guide chamber (4) and the baffles (15) are staggered inside the air guide chamber (4). The exhaust port (16) is opened on the upper surface of the air guide chamber (4).

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