Oil mist collector with fan front protection

Abstract

This utility model discloses an oil mist collector with a fan-based pre-protection system, comprising a housing structure with an air inlet and an exhaust port. Inside the housing structure, along the air intake direction of the mixed gas, a filter assembly for filtering the mixed gas, a fan for generating negative pressure to accelerate the flow of the mixed gas, a centrifugal separation mechanism for centrifugally separating oil mist in the mixed gas, and a drive motor for providing power are arranged sequentially. The output shaft of the drive motor is coaxially connected to the fan and the centrifugal separation mechanism, and the drive motor can drive the fan and the centrifugal separation mechanism to rotate. A filter cartridge is installed at the outer port of the exhaust port. This utility model achieves the synergistic effect of multi-stage filtration, centrifugal separation, and airflow optimization, forming a complete treatment chain of "inhalation → coarse filtration → fine filtration → centrifugal separation → uniform flow purification," ensuring efficient and stable treatment of the mixed gas.

Description

Technical Field

[0001] This utility model belongs to the field of oil mist separation equipment, specifically, it relates to an oil mist collector with a fan front protection. Background Technology

[0002] In industrial settings such as machining, spraying, and metal cutting, equipment operation generates large amounts of mixed gases containing oil mist particles. Direct release of these gases into the air not only pollutes the working environment and harms the health of operators but can also lead to equipment malfunctions and energy waste. Therefore, efficient oil mist collection and treatment equipment has become a crucial requirement in the field of industrial environmental protection.

[0003] In existing technologies, traditional oil mist collectors mostly employ single filtration or simple centrifugal separation methods, which have many drawbacks: some devices rely solely on a single-layer filter to intercept oil mist particles; however, the filter pore size is relatively large and lacks a graded filtration design, resulting in poor targeted processing capabilities for oil mist particles of different sizes, especially for submicron-sized oil mist particles, leading to excessive oil content in the treated gas; some devices using centrifugal separation technology can separate oil mist by generating centrifugal force through drum rotation, but the centrifugal separator directly contacts large particles of impurities in the mixed gas, easily causing impeller wear and rapid oil adhesion, resulting in high equipment maintenance frequency, time and labor costs, and complex operation requiring disassembly of core components; in addition, traditional equipment often lacks a scientific flow guidance design between the air inlet and the filter components, resulting in uneven gas flow after entering the collector, easily leading to problems such as excessive filtration load in local areas and airflow short-circuiting, affecting overall processing efficiency and equipment operational stability. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model aims to provide an oil mist collector with a fan front protection, which has multi-stage filtration, centrifugal separation and optimized airflow design to achieve efficient treatment of oil mist and convenient maintenance.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] An oil mist collector with fan front protection includes a housing structure with an air inlet and an exhaust port for the entry and exit of a mixed gas. Inside the housing structure, along the air inlet direction of the mixed gas, a filter assembly for filtering the mixed gas, a fan for generating negative pressure to accelerate the flow of the mixed gas, a centrifugal separation mechanism for centrifugally separating oil mist in the mixed gas, and a drive motor for providing power are arranged sequentially. The output shaft of the drive motor is coaxially connected to the fan and the centrifugal separation mechanism, and the drive motor can drive the fan and the centrifugal separation mechanism to rotate. A filter cartridge is installed at the outer port of the exhaust port.

[0007] Furthermore, the shell structure adopts a modular structure, which includes a main box, sub-boxes and flow equalization box, and the main box, the sub-boxes and the flow equalization box are detachably connected by corresponding bolts.

[0008] Furthermore, the interior of the sub-box is formed with an oil collecting chamber, and an observation window is provided in the oil collecting chamber to observe its interior.

[0009] Furthermore, the sub-box is equipped with an oil drain valve that communicates with the oil collection chamber.

[0010] Furthermore, the flow equalization box has a columnar structure, the drive motor is fixed inside the flow equalization box by a shock-absorbing base, and the output shaft of the drive motor extends into the main box and is connected to the fan and the centrifugal separation mechanism.

[0011] Furthermore, the filtration assembly consists of a primary pre-filter plate and a secondary primary filter screen.

[0012] Furthermore, the primary pre-filter plate adopts a metal mesh structure with a pore size of 2~5mm.

[0013] Furthermore, the secondary primary filter screen is made of woven fibers.

[0014] Furthermore, the filter media of the filter cartridge is activated carbon or glass fiber.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model realizes the synergistic effect of multi-stage filtration, centrifugal separation and airflow optimization, forming a complete treatment chain of "inhalation → coarse filtration → fine filtration → centrifugal separation → uniform flow purification", which ensures efficient and stable treatment of mixed gases;

[0017] 2. The fan of this utility model is arranged at the front end of the air inlet of the centrifugal separator. This design not only accelerates the flow of mixed gas through negative pressure effect, but more importantly, it can intercept impurities with larger particle size in the mixed gas, preventing them from directly impacting the drum and blades of the centrifugal separator, thereby reducing mechanical wear and oil adhesion, and extending the maintenance cycle of the centrifugal separator.

[0018] 3. The coaxial design of the drive motor, fan and centrifugal separator of this utility model enables them to work together to achieve the integrated function of "power supply - airflow drive - oil mist separation - equipment protection", which significantly improves the oil mist collection efficiency, equipment operation stability and maintenance convenience.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a front view of the collector of this utility model;

[0022] Figure 2 This is a side view of the collector of this utility model;

[0023] Figure 3 This is a cross-sectional view of the collector of this utility model;

[0024] Figure 4 This is a schematic diagram of the power transmission structure of this utility model.

[0025] The following are the labels in the diagram: 1. Shell structure; 2. Filter assembly; 3. Fan; 4. Centrifugal separation mechanism; 5. Drive motor; 6. Filter cartridge; 7. Oil drain valve; 8. Vibration damping base; 11. Main chamber; 12. Sub-chamber; 13. Flow equalization box; 111. Air inlet port; 131. Exhaust port; 21. Primary pre-filter plate; 22. Secondary primary filter screen; 121. Oil collection chamber; 122. Observation window. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, upper end, lower end, top, bottom, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] See Figures 1-4 As shown, an oil mist collector with fan front protection includes a housing structure 1, the overall structure of which includes a main housing 11, a sub-housing 12, and a flow equalization box 13, which are detachably connected by corresponding bolts to form a modular structure; the main housing 11 has an air inlet port 111, and the flow equalization box 13 has an exhaust port 131, through which the mixed gas enters and exits; inside the main housing 11, along the air inlet direction of the mixed gas, a filter assembly 2 for filtering the mixed gas is arranged, the filter assembly 2 consists of a primary pre-filter plate 21 and a secondary primary filter screen 22, which are connected by a metal bracket. Fixed inside the main housing 11, the mixed gas is filtered. The flow equalization box 13 has a columnar structure, and a drive motor 5 is fixedly installed inside it through a shock-absorbing base 8. The output shaft of the drive motor 5 extends into the main housing 11, and a fan 3 and a centrifugal separation mechanism 4 are coaxially installed on the output shaft to form a power transmission assembly. The coaxial design significantly improves working efficiency, reliability and ease of maintenance. A filter cartridge 6 is fixedly installed at the outer port of the exhaust port 131 opened on the flow equalization box 13 through a flange connection. This is used to perform final purification of the discharged gas, ensuring that the oil mist content in the discharged gas meets environmental protection standards while preventing external impurities from entering the collector in reverse.

[0029] When the equipment is running, the drive motor 5 drives the fan 3 and the centrifugal separation mechanism 4 to rotate. At this time, the impeller of the fan 3 rotates at high speed, creating a negative pressure environment in the main housing 11, which causes the mixed gas containing oil mist particles to be continuously drawn in through the air inlet 111. After the mixed gas enters the main housing 11, it passes through the first-stage pre-filter plate 21 and the second-stage primary filter screen 22 in sequence, and then enters the centrifugal separator 4 for oil mist separation. The separated gas is guided to the filter cartridge 6 through the flow equalization box 13 to complete the final filtration. Thus, through the synergistic effect of multi-stage filtration, centrifugal separation and airflow optimization, a complete processing link of "inhalation → coarse filtration → fine filtration → centrifugal separation → flow equalization purification" is formed, ensuring that the oil mist collector operates efficiently and stably.

[0030] In this embodiment, the primary pre-filter plate 21 adopts a metal mesh structure with a pore size of 2-5mm to intercept larger oil mist particles, metal debris, dust, and other impurities, thus initially reducing the concentration of pollutants in the mixed gas. The secondary primary filter screen 22 is made of woven fiber with a filtration accuracy of 5-10μm, enabling the capture of smaller oil mist particles in the mixed gas. The centrifugal separator 4 generates a strong centrifugal force field through high-speed rotation, causing the remaining submicron-sized oil mist particles to aggregate and settle towards the inner wall of the drum due to centrifugal force. The filter cartridge 6 is filled with high-efficiency filter material, preferably activated carbon or glass fiber.

[0031] Furthermore, it should be noted that during the separation process of gas entering the centrifugal separator 4, the fan 3, which is coaxially arranged with the centrifugal separator 4, plays a dual role. Specifically, the impeller of the fan 3 rotates to generate axial airflow, which pre-accelerates the gas entering the centrifugal separator 4, enhances the movement speed of oil mist particles in the centrifugal force field, and improves the separation efficiency. At the same time, the fan 3 acts as a front barrier to block fine impurities in the mixed gas that have not been completely filtered, preventing them from directly impacting the drum and blades of the centrifugal separator 4, reducing mechanical wear, and the uniform air delivery characteristics can also eliminate airflow pulsation, ensuring that the gas enters the flow equalization box 13 smoothly.

[0032] Furthermore, the oil mist particles that coalesce during the gas mixture separation process will drip downwards under the influence of gravity. Therefore, in this embodiment, please refer to [the specific details]. Figures 2-3 As shown, the interior of the sub-box 12 forms an oil collection chamber 121, through which dripping oil mist particles are collected; an observation window 122 is provided at the oil collection chamber 121, through which the amount of oil collected inside the oil collection chamber 121 can be observed; and an oil drain valve 7 is provided on the sub-box 12, which communicates with the oil collection chamber 121, through which the oil collected in the oil collection chamber 121 can be discharged, thereby realizing the recovery and treatment of oil mist.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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. An oil mist collector with fan front protection, comprising a housing structure (1), wherein the housing structure (1) is provided with an air inlet port (111) and an exhaust port (131) for the entry and exit of mixed gas, characterized in that: Inside the housing structure (1), along the gas inlet direction, there are arranged in sequence a filter assembly (2) for filtering the gas mixture, a fan (3) for generating negative pressure to accelerate the flow of the gas mixture, a centrifugal separation mechanism (4) for centrifugally separating oil mist in the gas mixture, and a drive motor (5) for providing power. The output shaft of the drive motor (5) is coaxially connected to the fan (3) and the centrifugal separation mechanism (4), and the drive motor (5) can drive the fan (3) and the centrifugal separation mechanism (4) to rotate. A filter cartridge (6) is installed at the outer port of the exhaust port (131).

2. The oil mist collector with fan front protection according to claim 1, characterized in that: The shell structure (1) adopts a modular structure, which includes a main box (11), a sub-box (12) and a flow equalization box (13). The main box (11), the sub-box (12) and the flow equalization box (13) are detachably connected by corresponding bolts.

3. The oil mist collector with fan front protection according to claim 2, characterized in that: The interior of the sub-box (12) is formed with an oil collecting chamber (121), and an observation window (122) is provided in the oil collecting chamber (121) for observing its interior.

4. The oil mist collector with fan front protection according to claim 3, characterized in that: An oil drain valve (7) is provided on the sub-box (12) and is connected to the oil collection chamber (121).

5. The oil mist collector with fan front protection according to claim 2, characterized in that: The flow equalization box (13) has a columnar structure. The drive motor (5) is fixed inside the flow equalization box (13) by a shock-absorbing base (8). The output shaft of the drive motor (5) extends into the main box (11) and is connected to the fan (3) and the centrifugal separation mechanism (4).

6. The oil mist collector with fan front protection according to claim 1, characterized in that: The filter assembly (2) consists of a primary pre-filter plate (21) and a secondary primary filter screen (22).

7. The oil mist collector with fan front protection according to claim 6, characterized in that: The primary pre-filter plate (21) adopts a metal mesh structure with a pore size of 2~5mm.

8. The oil mist collector with fan front protection according to claim 6, characterized in that: The secondary primary filter screen (22) is made of woven fibers.

9. The oil mist collector with fan front protection according to claim 1, characterized in that: The filter media of the filter cartridge (6) is activated carbon or glass fiber.

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