Combined oil smoke purification device

Abstract

The utility model discloses a combined oil smoke purification device which comprises a centrifugal oil mist separator and a two-stage plate type electrostatic combined purifier which are integrally connected in series, the centrifugal oil mist separator comprises a first air inlet, a second air inlet, a first air outlet and a second air outlet, the shell is internally provided with a rotary drum driven by a motor, and the rotary drum is provided with a plurality of holes and blades; the filter pad is arranged on the inner wall of the shell and is used for receiving and condensing the thrown-out oil mist; and the first oil collecting tank is arranged at the bottom of the shell and is used for recovering oil collected by the filter pad. By organically combining the centrifugal separation technology and the multistage electrostatic purification technology, the problems of low oil fume purification efficiency, frequent maintenance, multiple quick-wear parts and the like in the prior art are solved, and the oil fume purification device has the advantages of compact structure, complete functions, remarkable effect and the like, and is suitable for being popularized and applied to various oil fume gas emission scenes.

Description

Technical Field

[0001] This utility model relates to the field of oil fume purification, specifically to a combined oil fume purification device. Background Technology

[0002] In existing technologies, oil fume purification equipment mainly employs single methods such as mechanical filtration, electrostatic purification, and centrifugal separation to purify oily fumes. Mechanical filtration devices rely on materials such as filter cotton and metal mesh to physically intercept oil mist. Although the structure is simple, it easily leads to increased air resistance, decreased filtration efficiency, and frequent replacement of filter media, resulting in high maintenance costs. Electrostatic purification devices use a high-voltage electric field to capture charged oil mist particles, achieving high purification efficiency. However, for larger oil droplets or high-concentration oil fume environments, their front end often lacks effective pretreatment, easily causing electrode contamination or even breakdown failures, affecting equipment lifespan and stability.

[0003] Meanwhile, although traditional centrifugal oil mist separators can separate some oil droplets from the air through their rotating structure, their purification effect is limited when used alone, making it difficult to meet the requirements for high-cleanliness emissions. In addition, existing devices often suffer from problems such as large size, inconvenient maintenance, non-removable modules, and difficulty in collecting recovered oil, which limits their application and promotion in complex working conditions or continuous operating environments.

[0004] Therefore, there is an urgent need to provide a combined oil fume purification device with a reasonable structure, high purification efficiency, modular design, convenient maintenance, and oil mist recovery function to overcome the shortcomings of the existing technology. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides a combined oil fume purification device, which can effectively overcome the shortcomings of the prior art.

[0006] This utility model is achieved through the following technical solution: a combined oil fume purification device, comprising:

[0007] A centrifugal oil mist separator and a two-stage plate electrostatic purifier are connected in series.

[0008] in,

[0009] The centrifugal oil mist separator includes:

[0010] The first air inlet is used to receive oily fumes.

[0011] The housing contains a motor-driven drum with multiple holes and blades.

[0012] The filter pad, located on the inner wall of the housing, is used to receive and condense the oil mist thrown out.

[0013] The first oil collection tank is located at the bottom of the shell and is used to recover the oil collected by the filter pad;

[0014] The first air outlet is used to connect the two-stage plate electrostatic combined purifier and introduce the separated gas into it;

[0015] The two-stage plate-type electrostatic combined air purifier includes:

[0016] The air inlet section is provided with a second air inlet, which is connected to the first air outlet of the centrifugal oil mist separator.

[0017] The mechanical filtration section has a replaceable filter frame for preliminary filtration of the gas.

[0018] The electrostatic purification section includes a first-stage and a second-stage electric field, each equipped with a corona discharge device and a high-voltage electrostatic collection plate.

[0019] The fan section, located at the top or end, is used to provide airflow power;

[0020] The second air outlet is used to output purified air.

[0021] As a preferred technical solution, the two-stage plate electrostatic purifier is also equipped with an electrical box, a maintenance cover, a wiring cover, and a maintenance door.

[0022] As a preferred technical solution, the two-stage plate electrostatic purifier is also equipped with casters and explosion-proof sockets for easy movement and safe operation.

[0023] As a preferred technical solution, the drum of the centrifugal oil mist separator is driven to rotate by a high-speed motor, and the centrifugal force is used to make the oil mist impact the filter pad to form large oil droplets, thereby realizing oil-gas separation.

[0024] As a preferred technical solution, the first oil collection tank is located below the filter pad, adopts a box structure and is provided with a guide port to guide the oil droplets for concentrated recovery.

[0025] As a preferred technical solution, the mechanical filtration section of the two-stage plate electrostatic combined purifier includes a filter frame equipped with filter cotton or metal mesh for intercepting large particles of residual oil mist.

[0026] As a preferred technical solution, the electric field of the electrostatic purification section is arranged in two series. The first electric field is equipped with corona wires to charge the oil mist particles, and the second electric field is a high-voltage electrostatic plate group to adsorb the charged oil mist particles.

[0027] As a preferred technical solution, the fan section adopts a low-pressure, high-flow centrifugal fan.

[0028] As a preferred technical solution, the bottom of the two-stage plate electrostatic combined purifier is provided with a second oil collection tank.

[0029] The beneficial effects of this utility model are: First, the device adopts a centrifugal oil mist separator and a two-stage plate electrostatic purifier connected in series. The front end achieves preliminary oil-gas separation through a high-speed rotating drum, and the rear end further purifies the gas through mechanical filtration and electrostatic adsorption, achieving multi-stage linkage and efficient oil and smoke removal treatment effect, which is suitable for high-concentration oil fume conditions.

[0030] II. This utility model significantly reduces the pollution and load of the subsequent electrostatic field by pre-treating large oil mist particles through a centrifugal separator, extends the life of the electric field, and improves the working stability and long-term efficiency of the electrostatic purification section.

[0031] Third, all structural units, such as the drum, filter pad, electric field module, and filter frame, adopt a detachable modular design, which facilitates maintenance and replacement, reduces equipment downtime for maintenance, and improves system operating efficiency.

[0032] IV. Oil collection tanks are installed at the bottom of the centrifugal separation section and the electrostatic purifier to facilitate the recovery and treatment of condensed oil droplets, realize the reuse of oil resources, and improve environmental protection benefits. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the two-stage plate electrostatic purifier of this utility model. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the structure of the two-stage plate electrostatic purifier of this utility model. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the centrifugal oil mist separator of this utility model. Figure 1 ;

[0037] Figure 4 This is a schematic diagram of the centrifugal oil mist separator of this utility model. Figure 2 ;

[0038] Figure 5 This is an assembly diagram of the present invention;

[0039] Explanation of reference numerals in the attached figures:

[0040] 12. Centrifugal oil mist separator; 1. Two-stage plate electrostatic purifier; 14. First air inlet; 15. Rotary drum; 13. First oil collection tank; 16. First air outlet; 4. Second air inlet; 8. Mechanical filter section; 9. Fan section; 2. Second air outlet; 6. Second oil collection tank; 11. Electrical box; 3. Inspection cover; 10. Wiring cover; 7. Maintenance door; 5. Explosion-proof socket. Detailed Implementation

[0041] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0042] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0043] like Figures 1-5 As shown, the present invention provides a combined oil fume purification device, comprising a centrifugal oil mist separator 12 and a two-stage plate electrostatic combined purifier 1, which are connected in series. Each component has a compact structure and clear functional zoning, and works together to achieve a highly efficient oil fume purification effect.

[0044] The centrifugal oil mist separator 12 includes a first air inlet 14, a housing, a rotating drum 15, a filter pad, a first oil collection tank 13, and a first air outlet 16. The first air inlet 14 is located on one side of the housing and is used to receive oily fume gas from the source of the oil fume.

[0045] The housing is a sealed structure, and a set of rotating drums 15 driven by a high-speed motor is installed inside. The outer circumference of the rotating drums 15 is provided with multiple through holes and radially distributed blades. After the oily fume gas enters the housing through the first air inlet 14, it is subjected to the centrifugal force generated by the rotation of the rotating drums 15. The oil mist particles are thrown towards the inner wall of the housing, where they collide with the filter pads set on the inner wall and condense on the surface to form large oil droplets.

[0046] The filter pad is made of fibrous or porous material with strong adhesion and high temperature resistance, which can effectively collect oil mist and reduce airflow impact. The condensed oil droplets flow downward under the action of gravity and eventually collect in the first oil collection tank 13 located below the filter pad. The oil collection tank adopts a box structure and has a guide port on one side to facilitate the centralized collection and periodic discharge of oil.

[0047] After primary separation, the gas continues to be discharged from the first air outlet 16 along the airflow direction and enters the subsequent two-stage plate electrostatic purifier 1 for further treatment.

[0048] The two-stage plate-type electrostatic combined purifier 1 is structurally connected to the centrifugal oil mist separator 12. Its air inlet section has a second air inlet 4, which is directly connected to the first air outlet 16 of the centrifugal oil mist separator 12 via a pipe or sealed channel, achieving seamless gas transition. Following the air inlet section is a mechanical filtration section 8, which contains a removable filter frame filled with filter cotton or a metal mesh. This further physically intercepts residual large oil droplets or dust impurities, protecting the subsequent electrostatic purification module from contamination.

[0049] The electrostatic purification section has a two-stage structure, consisting of a first-stage electric field and a second-stage electric field. The first-stage electric field is equipped with corona wires, which generate high-voltage discharge on the flowing gas during operation, charging residual oil mist particles in the gas. The second-stage electric field is configured as a high-voltage electrostatic collection plate structure, which adsorbs these charged oil mist particles onto the metal dust collection plate, thereby achieving deep purification. Each stage of the electric field can be modularly assembled, facilitating disassembly, cleaning, and regular maintenance, ensuring purification efficiency and equipment stability.

[0050] A fan section 9 is installed after the electrostatic purification section. The fan section 9 can be installed at the top or at the end of the air outlet according to the layout conditions of the usage environment. The fan adopts a low-pressure, high-flow centrifugal fan, which has low wind resistance and low noise level, and can provide continuous and stable airflow power to discharge the purified air from the second air outlet 2.

[0051] To achieve intelligent operation and convenient maintenance, an electrical box 11 is installed on the outer shell of the two-stage plate electrostatic purifier 1. This box houses electrical components such as control circuits, transformers, and power modules, facilitating unified power supply and centralized control of the fan, electric field, and other components. Inspection covers 3, wiring covers 10, and maintenance doors 7 are also provided on the sides of each functional section of the device. Operators can access the equipment by opening the corresponding covers to replace, clean, and maintain filter media, electric field components, etc. Furthermore, to enhance the device's mobility and adaptability to on-site construction, casters are installed at the bottom for easy movement and repositioning on the ground. An explosion-proof socket 5 is also provided to accommodate environments with high safety requirements.

[0052] At the bottom of the device, especially below the electrostatic purification section, there is a second oil collection tank 6, which is used to collect the condensed oil that is released from the electrostatic adsorption plate during use, forming a dual recovery system. This ensures that the entire purification device has a strong oil recovery capacity while purifying efficiently, thereby improving the efficiency of resource reuse.

[0053] Through the above structural design, the combined oil fume purification device of this utility model realizes a multi-stage purification mechanism of "centrifugal + filtration + electrostatic", which has the advantages of high purification efficiency, compact structure, convenient maintenance and safety and reliability. It is particularly suitable for centralized treatment needs in situations with high concentration of oil fume emissions.

[0054] 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 changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A combined oil fume purification device, characterized in that, include: A centrifugal oil mist separator (12) and a two-stage plate electrostatic purifier (1) are connected in series. in, The centrifugal oil mist separator (12) includes: The first air inlet (14) is used to receive oily fumes; The housing has an internally mounted rotating drum (15) driven by a motor, the rotating drum (15) having multiple holes and blades; The filter pad, located on the inner wall of the housing, is used to receive and condense the oil mist thrown out. The first oil collection tank (13) is located at the bottom of the shell and is used to recover the oil collected by the filter pad; The first air outlet (16) is used to connect the two-stage plate electrostatic combined purifier (1) and introduce the separated gas into it; The two-stage plate-type electrostatic combined air purifier (1) includes: The air inlet section is provided with a second air inlet (4), which is connected to the first air outlet (16) of the centrifugal oil mist separator (12). Mechanical filtration section (8) is equipped with a replaceable filter frame for preliminary filtration of gas; The electrostatic purification section includes a first-stage and a second-stage electric field, each equipped with a corona discharge device and a high-voltage electrostatic collection plate. The fan section (9) is located at the top or tail end and is used to provide airflow power; The second air outlet (2) is used to output purified air.

2. The combined oil fume purification device according to claim 1, characterized in that: The two-stage plate electrostatic purifier (1) is also equipped with an electrical box (11), a maintenance cover (3), a circuit cover (10), and a maintenance door (7).

3. The combined oil fume purification device according to claim 1, characterized in that: The two-stage plate electrostatic purifier (1) is also equipped with rollers and explosion-proof sockets (5) for easy movement and safe operation.

4. The combined oil fume purification device according to claim 1, characterized in that: The drum (15) of the centrifugal oil mist separator (12) is driven to rotate by a high-speed motor. Centrifugal force is used to make the oil mist impact the filter pad to form large oil droplets, thereby achieving oil-gas separation.

5. The combined oil fume purification device according to claim 1, characterized in that: The first oil collection tank (13) is located below the filter pad, adopts a box structure and is provided with a guide port to guide the oil droplets to be collected and recovered.

6. The combined oil fume purification device according to claim 1, characterized in that: The mechanical filtration section (8) of the two-stage plate electrostatic combined purifier (1) includes a filter frame with filter cotton or metal mesh installed to intercept large particles of residual oil mist.

7. The combined oil fume purification device according to claim 1, characterized in that: The electric field of the electrostatic purification section is arranged in two series. The first electric field is equipped with corona wires to charge the oil mist particles, and the second electric field is a high-voltage electrostatic plate group to adsorb the charged oil mist particles.

8. The combined oil fume purification device according to claim 1, characterized in that: The fan section (9) adopts a low-pressure, high-flow centrifugal fan.

9. The combined oil fume purification device according to claim 1, characterized in that: The bottom of the two-stage plate electrostatic purifier (1) is provided with a second oil collection tank (6).

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