Efficient oil fume separation structure

Abstract

A kind of high-efficiency oil fume separation structure, comprising: first separation disc, second separation disc, drive shaft body and wind-breaking connecting rod assembly;First separation disc and second separation disc are in the form of separation wheel, including inner ring, outer ring and the separation rib structure arranged between inner ring and outer ring;The inner ring of first separation disc and the inner ring of second separation disc are connected by drive shaft body, and realize coaxial rotation;Wind-breaking connecting rod assembly includes wind-breaking rod and wind-breaking connecting column arranged at both ends of wind-breaking rod;The outer edge of separation rib structure extends to the upper side or lower side of outer ring.The utility model, separation rib structure extends to the upper side or lower side of outer ring design, further enhances the oil dirt diversion and capture ability, ensure that oil drop is effectively intercepted and guided to oil collection area, avoid re-entering airflow, improve the separation completeness, effectively alleviate the influence of oil dirt adhering to outer ring on wind wheel dynamic balance and motor load, with higher practical value and economy.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a high-efficiency oil fume separation structure. Background Technology

[0002] Chinese cooking often involves stir-frying food over high heat, resulting in a large amount of oil fumes. Range hoods often draw in oil and fumes together into the fume hood and fan housing, which, over time, can disrupt the dynamic balance of the impeller, reduce motor speed, increase motor load, and shorten motor lifespan. Commonly used oil fume separation structures on the market are mostly fixed filters or removable two- or multi-layer filters. However, while these filters are effective at intercepting and filtering oil fumes, they cannot achieve efficient oil separation. To address this, a vortex-type oil fume separator has been introduced to the market. This separator uses a motor to drive a high-speed rotating separation wheel, cutting through the oil fume airflow to effectively intercept and filter the oil and grease within the fumes. For example, the oil fume separation structure with patent number CN214619748U.

[0003] However, during use, the above structure has the following shortcomings: oil stains are easily thrown to and accumulate on the inner side of the separator wheel, and cannot be directly thrown to the outer side of the separator wheel, which affects the oil fume separation efficiency. The oil stain separation efficiency still needs to be improved. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a high-efficiency oil fume separation structure.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a high-efficiency oil fume separation structure, including: a first separation disc, a second separation disc, a drive shaft body and a wind-breaking connecting rod assembly; The first and second separating discs are in the form of separating wheels, including an inner ring, an outer ring, and a separating rib structure disposed between the inner and outer rings; the inner rings of the first and second separating discs are connected by the drive shaft body and achieve coaxial rotation; The air-breaking connecting rod assembly includes an air-breaking rod and air-breaking connecting columns disposed at both ends of the air-breaking rod; the upper and lower ends of one end of the air-breaking connecting column are respectively connected to the inner rings of the first separation plate and the second separation plate, and the upper and lower ends of the other end of the air-breaking connecting column are respectively connected to the outer rings of the first separation plate and the second separation plate; the outer edge of the separation rib structure extends to the upper or lower side of the outer ring.

[0006] Optionally, the separating rib structure is an inclined rib structure connected between the inner and outer rings.

[0007] Optionally, multiple sets of the wind-breaking connecting rod assemblies are arranged at circumferential intervals along the drive shaft body.

[0008] Optionally, multiple air-breaking rods are provided at intervals along the vertical direction.

[0009] Optionally, the wind-breaking rod is a straight rod, an inclined rod, or a curved rod.

[0010] Optionally, the first separation disc and / or the second separation disc are provided with two separation wheel structures that are stacked on top of each other.

[0011] Optionally, the two separation ribs of the two overlapping separation wheel structures are arranged vertically and horizontally, forming a relatively inclined rib structure, and the vertically overlapping separation ribs form an air inlet gap in the shape of a " / " shape.

[0012] Optionally, the inner or outer ring is provided with a weight-reducing groove.

[0013] The beneficial effects of this invention are as follows: The wind-breaking connecting rod assembly effectively disrupts the oil fume airflow during high-speed rotation of the separating wheel, breaking the original stable flow field. This makes it easier for oil droplets to be thrown outwards under centrifugal force, significantly reducing oil residue buildup in the inner ring and thus improving oil separation efficiency. The design of the separating rib structure extending to the upper or lower side of the outer ring further enhances the oil guiding and capturing capabilities, ensuring that oil droplets are effectively intercepted and guided to the oil collection area, preventing them from re-entering the airflow and improving the thoroughness of separation. It effectively alleviates the impact of oil adhering to the outer ring on the impeller dynamic balance and motor load, helping to maintain the long-term efficient operation of the range hood, reducing maintenance frequency, and possessing high practical value and economic efficiency.

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the high-efficiency oil fume separation structure of this utility model; Figure 2 for Figure 1 Schematic diagram of a medium-to-high efficiency oil fume separation structure; Figure 3 for Figure 1 Cross-sectional view of a medium- and high-efficiency oil fume separation structure.

[0016] Explanation of key component symbols: 10. First separation disc; 20. Second separation disc; 30. Drive shaft body; 40. Air-breaking connecting rod assembly; 41. Air-breaking rod; 42. Air-breaking connecting column; 50. Separation wheel structure; 51. Inner ring; 52. Outer ring; 53. Separation rib; 54. Air inlet gap; 55. Weight reduction groove. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0020] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Example Reference Figures 1 to 3 The present invention proposes a high-efficiency oil fume separation structure, comprising: a first separation disc 10, a second separation disc 20, a drive shaft body 30, and a wind-breaking connecting rod assembly 40; The first separating disc 10 and the second separating disc 20 are in the form of a separating wheel structure 50, including an inner ring 51, an outer ring 52 and a separating rib 53 structure disposed between the inner ring 51 and the outer ring 52; the inner ring 51 of the first separating disc 10 and the inner ring 51 of the second separating disc 20 are connected by a drive shaft body 30 and achieve coaxial rotation; The wind-breaking connecting rod assembly 40 includes a wind-breaking rod 41 and wind-breaking connecting posts 42 disposed at both ends of the wind-breaking rod 41; the upper and lower ends of one end of the wind-breaking connecting post 42 are respectively connected to the inner ring 51 of the first separation plate 10 and the second separation plate 20, and the upper and lower ends of the other end of the wind-breaking connecting post 42 are respectively connected to the outer ring 52 of the first separation plate 10 and the second separation plate 20; the outer edge of the separation rib 53 structure extends to the upper or lower side of the outer ring 52.

[0022] In this invention, the wind-breaking connecting rod assembly 40 effectively disrupts the oil fume airflow when the separating wheel rotates at high speed, breaking the original stable flow field. This makes it easier for oil droplets to be thrown outwards under centrifugal force, significantly reducing the residual accumulation of oil in the inner ring 51, thereby improving oil separation efficiency. The design of the separating rib 53 extending to the upper or lower side of the outer ring 52 further enhances the guiding and capturing ability of oil, ensuring that oil droplets are effectively intercepted and guided to the oil collection area, preventing them from re-entering the airflow and improving the thoroughness of separation. This effectively alleviates the impact of oil adhering to the outer ring 52 on the dynamic balance of the impeller and the motor load, helping to maintain the long-term efficient operation of the range hood, reducing maintenance frequency, and possessing high practical value and economic benefits.

[0023] In this embodiment, the separation rib 53 is an inclined rib structure connected between the inner ring 51 and the outer ring 52. The inclined rib structure forms an inclined impact surface during rotation, enabling more efficient collision and capture of oil particles in the fumes. Simultaneously, the inclined angle generates a guiding airflow during rotation, directing the captured liquid oil film along the rib surface towards the outer ring 52, rather than allowing it to splash randomly. This further reduces oil residue on the inner ring 51 and the ribs, optimizes the oil drainage path, and improves separation efficiency.

[0024] Specifically, multiple sets of air-breaking connecting rod assemblies 40 are arranged circumferentially along the drive shaft body 30. The evenly spaced circumferential arrangement of these multiple sets of air-breaking connecting rod assemblies 40 ensures that the air-breaking and turbulence-causing effects occur uniformly within a 360-degree range, without any dead zones. This ensures that regardless of the direction from which the oil fumes enter, they can be effectively cut and disturbed, improving the separator's operational stability and processing efficiency, and avoiding the problem of decreased separation effect caused by uneven airflow.

[0025] Furthermore, multiple air-breaking bars 41 are spaced apart along the vertical direction. The presence of multiple air-breaking bars 41 in the vertical direction increases the disturbance area and frequency of the air-breaking component in three-dimensional space, enabling multi-layered and thorough cutting and breaking of the oil fume airflow. This ensures that oil fumes at different heights can be effectively treated, improving the utilization rate and separation effect of the entire separation wheel in the vertical direction.

[0026] In this embodiment, the wind-breaking bar 41 is a straight bar, an inclined bar, or a curved bar. A straight bar has a simple structure, is easy to manufacture, and has a direct turbulence effect; an inclined bar or a curved bar can create more complex vortices and airflow paths, and may produce better wind-breaking and airflow guiding effects for specific airflow conditions, so as to adapt to different duct designs and performance requirements, and can be flexibly designed according to the operating conditions.

[0027] In this embodiment, the first separation disc 10 and / or the second separation disc 20 are provided with two overlapping separation wheel structures 50. This double-layered separation wheel structure is equivalent to performing a two-stage oil fume separation process. The oil fume airflow passes sequentially through the two separation wheels, undergoing two collision, centrifugation, and separation processes, greatly extending the treatment path and time of the oil fume, resulting in more thorough and complete oil separation and significantly improving the overall purification efficiency.

[0028] Specifically, the two separation ribs 53 of the two overlapping separation wheel structures 50 are arranged vertically in a relatively inclined rib structure, with the overlapping separation ribs 53 forming an air inlet gap 54 in a " / " shape. The " / " shape structure creates a Venturi effect channel that first contracts and then expands. The contraction of the air inlet gap accelerates the airflow, increasing the probability and kinetic energy of the collision between oil droplets and the separation ribs 53; while the expansion of the air outlet is beneficial for pressure recovery and centrifugal sedimentation of oil droplets. The relatively inclined ribs can generate cross-turbulence, further disrupting the stability of oil droplets, thereby achieving a multi-stage synergistic separation effect, with a separation efficiency far exceeding that of a simple superposition of two single layers.

[0029] In some embodiments, the inner ring 51 or the outer ring 52 is provided with a weight-reducing groove 55. The weight-reducing groove 55 effectively reduces the overall weight of the separator wheel, thereby reducing its rotational inertia. This allows the motor to start more quickly, with a smaller load, and operates more energy-efficiently. It also helps reduce vibration, maintain dynamic balance, and extend the service life of the motor and the entire range hood.

[0030] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A high-efficiency oil fume separation structure, characterized in that, include: First separation disc (10), second separation disc (20), drive shaft body (30) and wind-breaking connecting rod assembly (40); The first separating disc (10) and the second separating disc (20) are in the form of a separating wheel structure (50), including an inner ring (51), an outer ring (52) and a separating rib (53) structure disposed between the inner ring (51) and the outer ring (52); the inner ring (51) of the first separating disc (10) and the inner ring (51) of the second separating disc (20) are connected by the drive shaft body (30) and achieve coaxial rotation; The wind-breaking connecting rod assembly (40) includes a wind-breaking rod (41) and wind-breaking connecting columns (42) disposed at both ends of the wind-breaking rod (41); the upper and lower ends of one end of the wind-breaking connecting column (42) are respectively connected to the inner ring (51) of the first separation plate (10) and the second separation plate (20), and the upper and lower ends of the other end of the wind-breaking connecting column (42) are respectively connected to the outer ring (52) of the first separation plate (10) and the second separation plate (20); the outer edge of the separation rib (53) structure extends to the upper or lower side of the outer ring (52).

2. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The separation rib (53) has an inclined rib structure and is connected between the inner ring (51) and the outer ring (52).

3. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The wind-breaking connecting rod assembly (40) is provided in multiple sets at circumferential intervals along the drive shaft body (30).

4. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The wind-breaking rod (41) is provided in multiple intervals along the vertical direction.

5. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The wind-breaking rod (41) is a straight rod, an inclined rod, or a curved rod.

6. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The first separation disc (10) and / or the second separation disc (20) are provided with two separation wheel structures (50) stacked on each other.

7. The high-efficiency oil fume separation structure according to claim 6, characterized in that: The two separation ribs (53) of the two overlapping separation wheel structures (50) are arranged vertically and vertically, forming a relatively inclined rib structure. The vertically overlapping separation ribs (53) form an air inlet gap (54) in the shape of a " / ".

8. The high-efficiency oil fume separating structure according to claim 1, characterized in that: The inner ring (51) or outer ring (52) is provided with a weight reduction groove (55).

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