Oil mist separation device

Abstract

The utility model provides an oil mist separation device, and relates to the technical field of vehicle parts. The oil mist separation device can comprise the base, the cover plate and the porous adsorption layer, at least one through hole is formed in the base, the containing cavity is formed between the base and the cover plate, the porous adsorption layer is arranged in the containing cavity, gas passes through the through hole from the bottom of the base and then enters the containing cavity, and the oil mist is separated. And the oil mist passes through the porous adsorption layer and then is discharged from the side edge of the cover plate, so that the purpose of separating the oil mist is achieved. According to the oil mist separation device, the porous adsorption layer is arranged in the accommodating cavity, and at least part of the porous adsorption layer is compressed, so that holes in the porous adsorption layer are also compressed, and the separation efficiency of the oil mist separation device in a limited space is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to an oil mist separation device. Background Art

[0002] The oil mist separator is crucial for the normal operation of the automotive industry. It can effectively separate the oil mist particles in the compressed air to ensure the normal operation of the engine. The working principle of the oil mist separator is that the compressed air flows into the inner side of the filter element from the inlet and then flows to the outer side. In the fiber layer of the filter element, the oil particles will be intercepted by relying on their movement inertia, and then collide with each other or with multiple layers of fibers and be adsorbed by the fibers. The existing engines have increasingly strict requirements for the separation efficiency of the oil mist separator. If better separation efficiency needs to be achieved, greater costs will be incurred. Summary of the Utility Model

[0003] An object of the first aspect of the utility model is to provide an oil mist separator to solve the problem of low oil mist separation efficiency of the existing oil mist separation device.

[0004] In particular, the utility model provides an oil mist separation device, comprising:

[0005] A base provided with at least one through hole penetrating up and down;

[0006] A cover plate covering the upper part of the base; a receiving cavity is formed between the cover plate and the base, and the through hole penetrates the receiving cavity and the bottom of the base; and

[0007] A porous adsorption layer provided in the receiving cavity, and at least part of the porous adsorption layer is compressed.

[0008] Optionally, the longitudinal dimension of at least part of the receiving cavity is smaller than the longitudinal dimension of the porous adsorption layer, so that the porous adsorption layer at this position is compressed.

[0009] Optionally, the number of the through holes is multiple, and the multiple through holes are distributed at the base, and the position of the base between the multiple through holes is continuous.

[0010] Optionally, at least one rib is provided on the upper surface of the base, and all the ribs are located at the position between the multiple through holes, and the distance between the top of at least one rib and the bottom of the cover plate is smaller than the longitudinal dimension of the porous adsorption layer.

[0011] Optionally, the distance between the top of all the ribs and the bottom of the cover plate is smaller than the longitudinal dimension of the porous adsorption layer.

[0012] Optionally, there is a preset distance between the bottom of the porous adsorption layer and the opening above the through hole.

[0013] Optionally, the material of the porous adsorption layer includes non-woven fabric.

[0014] Optionally, a connection structure is provided between the base and the cover plate, and the base and the cover plate are connected to each other through the connection structure.

[0015] Optionally, the connection structure includes a buckle and a slot, and the buckle and the slot cooperate with each other to connect the base and the cover plate to each other.

[0016] Optionally, the connection structure includes a welding protrusion and a welding groove, and the base and the cover plate are connected to each other by welding through the cooperation of the welding protrusion and the welding groove.

[0017] The oil mist separation device of this solution may include a base, a cover plate and a porous adsorption layer. An accommodation cavity is formed between the base and the cover plate. The porous adsorption layer is arranged in the accommodation cavity. Gas enters the accommodation cavity from the bottom of the base through the through hole, and then passes through the porous adsorption layer and is discharged from the side of the cover plate, so as to achieve the purpose of separating the oil mist. In this solution, the porous adsorption layer is arranged in the accommodation cavity, and at least part of the porous adsorption layer is compressed against the base by the cover plate. In order to enable the separated gas to be discharged smoothly, there must be a gap between the porous adsorption layer and the upper surface of the base. Therefore, at least one rib is provided on the upper surface of the base, so that the oil mist separation device has a higher separation efficiency in a limited space. The design without a protruding nozzle also greatly reduces the complex process of mold manufacturing, and has a higher qualified product rate, a larger parameter setting range, and is suitable for complex production environments. Multiple through holes can be designed at the base of this solution, and the positions between the multiple through holes are continuous, and there are no other groove structures, so as to ensure better oil mist separation efficiency.

[0018] By providing ribs at the base in this solution, it is ensured that there is a certain distance between the bottom of the porous adsorption layer and the opening above the through hole, thereby ensuring that icing is prevented while meeting the separation efficiency.

[0019] Based on the following detailed description of specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will more clearly understand the above and other objects, advantages and features of the present invention. Description of the Drawings

[0020] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 is a schematic structural diagram of a base according to a specific embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of a porous adsorption layer installed at the base according to a specific embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of an oil mist separation device according to a specific embodiment of the present utility model;

[0024] Figure 4 is a schematic cross-sectional structural diagram when the base and the cover plate are installed together according to a specific embodiment of the present utility model;

[0025] Figure 5 is a schematic cross-sectional structural diagram of an oil mist separation device according to a specific embodiment of the present utility model.

[0026] Explanation of reference numerals:

[0027] Oil mist separation device - 100; Base - 110; Through hole - 111; Rib - 112; Bottom - 113; Cover plate - 120; Porous adsorption layer - 130; Accommodating cavity - 140; Connection structure - 150; Welding protrusion - 151; Welding groove - 152. Detailed implementation manners

[0028] In the description of this embodiment, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "height", "upper", "lower", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0029] As a specific embodiment of the present utility model, as Figures 1-5As shown in the figure, an oil mist separation device 100 is provided in this embodiment. The oil mist separation device 100 may include a base 110, a cover plate 120, and a porous adsorption layer 130. Among them, the base 110 is provided with at least one through hole 111 penetrating up and down, and the upper surface of the through hole 111 serves as the outlet of the oil-gas mixture, which is on the same plane as the upper surface of the base 110. The cover plate 120 is covered above the base 110. An accommodation cavity 140 is formed between the cover plate 120 and the base 110, and the through hole 111 communicates the accommodation cavity 140 and the bottom 113 of the base 110. The porous adsorption layer 130 is disposed in the accommodation cavity 140, and at least part of the porous adsorption layer 130 is compressed.

[0030] Specifically, the oil mist separation device 100 of this embodiment may include a base 110, a cover plate 120, and a porous adsorption layer 130. An accommodation cavity 140 is formed between the base 110 and the cover plate 120. The porous adsorption layer 130 is disposed in the accommodation cavity 140. The oil-gas mixture enters the accommodation cavity 140 from the bottom of the base 110 through the through hole 111, and after hitting the porous adsorption layer 130, it is discharged from the side of the cover plate 120, so as to achieve the purpose of separating the oil mist. In this embodiment, the porous adsorption layer 130 is disposed in the accommodation cavity 140, and at least part of the porous adsorption layer 130 is compressed and abutted against the base 110 by the cover plate 120. In order to enable the separated gas to be discharged smoothly, there must be a gap between the porous adsorption layer 130 and the upper surface of the base 110. Therefore, at least one rib 112 is provided on the upper surface of the base 110, so that the oil mist separation device 100 has a higher separation efficiency in a limited space. This design without protruding nozzles also greatly reduces the complex process of mold manufacturing, and has a higher qualified product rate and a larger parameter setting range during the injection molding process, adapting to complex production environments.

[0031] As a specific embodiment of the present invention, the longitudinal dimension a of at least part of the accommodation cavity 140 in this embodiment is smaller than the longitudinal dimension b of the porous adsorption layer 130, so that the porous adsorption layer 130 at this position is compressed.

[0032] Specifically, the longitudinal dimension in this embodiment refers to the minimum distance between the bottom of the cover plate 120 and the top of the base 110 in the figure.

[0033] Specifically, if the longitudinal dimension a of at least part of the accommodation cavity 140 in this embodiment is smaller than the longitudinal dimension b of the porous adsorption layer 130, then when the cover plate 120 is assembled to the base 110, at least the porous adsorption layer 130 at this position will be compressed, so that the pressure loss of the oil-gas mixture here becomes larger and the oil passing rate decreases. Therefore, the separation efficiency of the compressed porous adsorption layer 130 at this position is higher than that of the non-compressed porous adsorption layer 130 for oil mist separation.

[0034] More specifically, in this embodiment, by adjusting the longitudinal dimension of the accommodating cavity 140, the compression amount of the compressed porous adsorption layer 130 is controlled, and thus the pressure loss values of different requirements can be achieved.

[0035] As a specific embodiment of the present utility model, the number of through holes 111 in this embodiment is multiple, and the multiple through holes 111 are distributed at the base 110, and the positions of the base 110 between the multiple through holes 111 are continuous, and there are no other structures such as grooves. In other words, the upper surface of the base 110 is a plane of the same height, and the convex ribs 112 are arranged on this plane, so as to ensure better oil mist separation efficiency.

[0036] Specifically, as Figure 1 shown, multiple through holes 111 can be designed at the base 110 of this embodiment, and the through holes 111 can be evenly distributed or distributed according to a certain rule. The shape of each through hole 111 can be the same or different, and preferably the same. The cross-sectional shape of each through hole 111 is not limited, and can be, for example, circular, square, triangular, trapezoidal, etc. For example, the number of through holes 111 in this embodiment is 7, and the cross-sectional shape of the through holes 111 is circular.

[0037] As a specific embodiment of the present utility model, at least one convex rib 112 is arranged on the upper surface of the base 110 in this embodiment, and all the convex ribs 112 are located at the positions between the multiple through holes 111. The distance between the top of at least one convex rib 112 and the bottom of the cover plate 120 is less than the longitudinal dimension of the porous adsorption layer 130, so that the porous adsorption layer 130 can be pressed between the base 110 and the cover plate 120 by using the convex rib 112, thereby well realizing the compression of the porous adsorption layer 130, and further improving the separation efficiency of the porous adsorption layer 130.

[0038] As a specific embodiment of the present utility model, the distance between the top of all the convex ribs 112 and the bottom of the cover plate 120 in this embodiment is less than the longitudinal dimension of the porous adsorption layer 130. In this way, all the convex ribs 112 can compress the porous adsorption layer 130, and further increase the oil mist separation efficiency of the porous adsorption layer 130.

[0039] As a specific embodiment of the present utility model, as Figure 3 shown, there is a preset distance c between the bottom of the porous adsorption layer 130 and the opening above the through hole 111 in this embodiment.

[0040] Specifically, in this embodiment, by arranging the convex ribs 112 at the base 110, a certain distance between the bottom of the porous adsorption layer 130 and the opening above the through hole 111 is ensured, so as to prevent icing while meeting the separation efficiency.

[0041] As a specific embodiment of the present utility model, the material of the porous adsorption layer 130 in this embodiment includes non-woven fabric. Specifically, the material of the porous adsorption layer 130 in this embodiment can also be other porous materials that can perform oil mist separation.

[0042] As a specific embodiment of the present utility model, as Figure 4 and Figure 5 shown, a connection structure 150 is provided between the base 110 and the cover plate 120 in this embodiment, and the base 110 and the cover plate 120 are connected to each other through the connection structure 150.

[0043] As a specific embodiment of the present utility model, the connection structure 150 in this embodiment can include a buckle and a slot (not shown in the figure), and the buckle and the slot cooperate with each other to connect the base 110 and the cover plate 120 to each other.

[0044] Specifically, the buckle in this embodiment can be provided on the cover plate 120, and the slot is provided on the base 110. As another embodiment, the buckle is provided on the base 110, and the slot is provided on the cover plate 120. Each buckle and slot are arranged corresponding to each other. And multiple groups of buckles and slots can be provided on each oil mist separation device 100. The buckle and slot structure can be any one of the buckle and slot structures in the prior art that can be buckled with each other, and its structure is not specifically limited.

[0045] As a specific embodiment of the present utility model, the connection structure 150 in this embodiment includes a welding protrusion 151 and a welding groove 152, and the base 110 and the cover plate 120 are connected to each other by welding through the cooperation of the welding protrusion 151 and the welding groove 152.

[0046] Specifically, in this embodiment, four welding protrusions 151 are provided on the base 110, and four welding grooves 152 are provided on the cover plate 120. The base 110 and the cover plate 120 are connected to each other by welding through the cooperation of the welding protrusion 151 and the welding groove 152.

[0047] Furthermore, by changing the depth of the welding protrusion 151 or the cover plate 120, the depth of the compressed porous adsorption layer 130 can be controlled, so that different required pressure loss values can be achieved.

[0048] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present utility model have been shown and described in detail herein, still, without departing from the spirit and scope of the present utility model, many other variations or modifications that conform to the principles of the present utility model can be directly determined or derived based on the content disclosed in the present utility model. Therefore, the scope of the present utility model should be understood and determined to cover all these other variations or modifications.

Claims

1. An oil mist separation device, characterized in that: include: A base, which is provided with at least one through hole extending from top to bottom; A cover plate is disposed above the base; a receiving cavity is formed between the cover plate and the base, and the through hole passes through the receiving cavity and the bottom of the base; and The porous adsorption layer is arranged in the accommodating cavity, and at least a part of the porous adsorption layer is compressed.

2. The oil mist separation device according to claim 1, characterized in that: The longitudinal dimension of at least a portion of the accommodating cavity is smaller than the longitudinal dimension of the porous adsorption layer, so that the porous adsorption layer at the portion is compressed.

3. The oil mist separation device according to claim 1, characterized in that: The number of the through holes is multiple, the multiple through holes are distributed on the base, and the positions of the base between the multiple through holes are continuous.

4. The oil mist separation device according to claim 3, characterized in that: At least one convex rib is arranged on the upper surface of the base, all of the convex ribs are located between the plurality of through holes, and the distance between the top of at least one convex rib and the bottom of the cover plate is smaller than the longitudinal dimension of the porous adsorption layer.

5. The oil mist separation device according to claim 4, characterized in that: The distance between the top of all the convex ribs and the bottom of the cover plate is smaller than the longitudinal dimension of the porous adsorption layer.

6. The oil mist separation device according to claim 1 or 4, characterized in that: There is a preset distance between the bottom of the porous adsorption layer and the opening above the through hole.

7. The oil mist separation device according to claim 1, characterized in that: The material of the porous adsorption layer includes non-woven fabric.

8. The oil mist separation device according to claim 1, characterized in that: A connecting structure is provided between the base and the cover plate, and the base and the cover plate are connected to each other through the connecting structure.

9. The oil mist separation device according to claim 8, characterized in that: The connection structure includes a buckle and a slot, and the buckle and the slot cooperate with each other to connect the base and the cover plate to each other.

10. The oil mist separation device according to claim 8, characterized in that: The connection structure includes a welding protrusion and a welding groove, and the welding protrusion and the welding groove are welded together to connect the base and the cover plate.

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