Filter element structure for oil-gas separator

Abstract

The utility model is applicable to the technical field of filter elements for oil-gas separators, and particularly relates to a filter element structure for an oil-gas separator, which comprises a mounting end face, a latticed framework is arranged at the edge of the surface of the mounting end face, and a filter layer is sleeved on the outer side of the latticed framework. One end face of the filter layer is attached to the surface, where the latticed framework is installed, of the installation end face, and the other end face of the filter layer is flush with the end face, away from the installation end face, of the latticed framework. Through the arrangement of the first PU foaming ring, the second sealing groove, the second PU foaming ring and the first sealing groove, the technical effects of direct assembly and sealing can be realized when the filter element structure is assembled, and the sealing effect in the filter element can be ensured without additionally arranging a sealing ring and a sealing gasket in the assembly mode; therefore, the assembly efficiency and the sealing performance of the filter element structure for the oil-gas separator are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements for oil and gas separators, in particular to a filter element structure for oil and gas separators. Background Art

[0002] In automotive industry applications, oil-gas separators are key equipment, especially those used in engines. Oil-gas separators used in engines are mainly used to separate unburned fuel gas, water vapor in crankcase blowby gas, engine oil in exhaust gas, and PM and PN particles to ensure gas purity and efficient operation of equipment. As the core component of the oil-gas separator, the performance of the filter element directly affects the separation effect and the stability of the equipment. Traditional oil-gas separator filter element structures usually rely on sealing rings and gaskets to achieve internal sealing to prevent gas leakage and impurity penetration.

[0003] However, this traditional sealing method has several disadvantages. First, the installation of the seal ring and gasket requires additional steps, which not only increases the assembly time, but may also cause unstable sealing performance due to improper installation. Second, the long-term use of the seal ring and gasket will lose its elasticity and sealing effect due to material aging, and it needs to be replaced regularly to maintain the performance of the filter element, which increases maintenance costs and downtime.

[0004] In addition, with the increasing requirements of industry for environmental protection and efficiency, higher requirements are placed on the sealing performance and assembly efficiency of filter element structures. Therefore, developing a new filter element structure for oil-gas separators that can achieve fast, efficient direct assembly and excellent sealing performance without relying on traditional sealing rings and gaskets is a technical problem that needs to be solved urgently in the industry. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a filter element structure for an oil-gas separator, aiming to solve the technical problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A filter element structure for an oil-gas separator, comprising a mounting end face, and a grid-like frame is arranged at the edge of the mounting end face surface, a filter layer is sleeved on the outer side of the grid-like frame, and one end face of the filter layer is in contact with the surface of the mounting end face where the grid-like frame is mounted, and the other end face of the filter layer is flush with the end face of the grid-like frame away from the mounting end face;

[0008] A mounting hole is provided in the middle of the mounting end surface, and a connecting rod is provided through the mounting hole, one end of the connecting rod is connected to a one-way valve plate, and a spring and a spring retaining ring are sleeved on the outer side of the connecting rod;

[0009] A first PU foam ring is sleeved on the outer side of the installation end surface, and a second PU foam ring is sleeved on the outer side of the filter layer away from the installation end surface. The first PU foam ring and the filter layer, as well as the second PU foam ring and the filter layer, are in a sealed connection state.

[0010] Furthermore, a second sealing groove is provided on the surface of the first PU foam ring, and the mounting end face is clamped in the interior of the second sealing groove, and the outer surface of the mounting end face is tightly attached to the inner wall of the second sealing groove; a first sealing groove is provided on the surface of the second PU foam ring, and one end of the grid-like skeleton and the filter layer are both clamped in the interior of the first sealing groove, and the outer surface of the filter layer and the inner wall of the grid-like skeleton are tightly attached to the inner walls on both sides of the first sealing groove respectively.

[0011] Furthermore, a plurality of positioning grooves are provided on the surfaces of the first PU foam ring and the second PU foam ring.

[0012] Furthermore, the filter layer is composed of a PA support mesh and filter cotton, and the PA support mesh is made of stainless steel metal fiber.

[0013] Furthermore, the one-way valve plate and the mounting end surface as well as the spring retaining ring and the connecting rod are connected together by a hot riveting process.

[0014] The utility model provides a filter element structure for an oil-gas separator, which has the following beneficial effects:

[0015] By providing the first PU foam ring, the second sealing groove, the second PU foam ring and the first sealing groove, the technical effect of direct assembly and sealing can be achieved when assembling the filter element structure, and this assembly method can ensure the sealing effect inside the filter element without the need for additional sealing rings and sealing pads, thereby improving the assembly efficiency and sealing performance of the filter element structure for the oil-gas separator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of a filter element structure for an oil-gas separator.

[0017] Figure 2 It is a front structural schematic diagram of a first PU foam ring, a mounting end surface, a grid-like skeleton, a filter layer and a second PU foam ring in a filter element structure for an oil-gas separator in a disassembled state.

[0018] Figure 3 It is a schematic diagram of the upward structure of a first PU foam ring, a mounting end surface, a grid-like skeleton, a filter layer and a second PU foam ring in a filter element structure for an oil-gas separator in a disassembled state.

[0019] Figure 4The present invention is a structural schematic diagram of a mounting end face, a one-way valve plate and a grid-shaped skeleton in a filter element structure for an oil-gas separator.

[0020] Figure 5 The present invention is a front structural schematic diagram of a one-way valve plate and a mounting end face in a filter element structure for an oil-gas separator in a separated state.

[0021] In the figure: 1. first PU foam ring; 2. mounting end face; 3. one-way valve plate; 4. positioning groove; 5. filter layer; 6. second PU foam ring; 7. grid-like skeleton; 8. first sealing groove; 9. second sealing groove; 10. spring; 11. spring retaining ring; 12. connecting rod; 13. mounting hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] like Figure 1-Figure 5 As shown, an oil-gas separator filter structure provided by an embodiment of the utility model comprises a mounting end face 2, and a grid-shaped skeleton 7 is arranged at the edge of the surface of the mounting end face 2, a filter layer 5 is sleeved on the outer side of the grid-shaped skeleton 7, and one end face of the filter layer 5 is in contact with the surface of the mounting end face 2 where the grid-shaped skeleton 7 is mounted, and the other end face of the filter layer 5 is flush with the end face of the grid-shaped skeleton 7 away from the mounting end face 2;

[0025] A mounting hole 13 is provided in the middle of the mounting end surface 2, and a connecting rod 12 is provided inside the mounting hole 13, one end of the connecting rod 12 is connected to the one-way valve plate 3, and a spring 10 and a spring retaining ring 11 are sleeved on the outer side of the connecting rod 12;

[0026] A first PU foam ring 1 is sleeved on the outer side of the mounting end face 2, and a second PU foam ring 6 is sleeved on the outer side of the filter layer 5 away from the mounting end face 2. A second sealing groove 9 is provided on the surface of the first PU foam ring 1, and the mounting end face 2 is clamped in the inside of the second sealing groove 9. The outer surface of the mounting end face 2 is tightly attached to the inner wall of the second sealing groove 9. A first sealing groove 8 is provided on the surface of the second PU foam ring 6, and one end of the grid-like skeleton 7 and the filter layer 5 are both clamped in the inside of the first sealing groove 8. The outer surface of the filter layer 5 and the inner wall of the grid-like skeleton 7 are tightly attached to the inner walls on both sides of the first sealing groove 8 respectively. The first PU foam ring 1 and the filter layer 5 as well as the second PU foam ring 6 and the filter layer 5 are in a sealed connection state.

[0027] In one embodiment of the present invention, the PU foam material used to prepare the first PU foam ring 1 and the second PU foam ring 6 refers to polyurethane foam material (Polyurethane Foam), which is a multifunctional polymer material widely used in many fields such as furniture, automobile interior, shoe materials, construction and packaging, etc. PU foam material has the advantages of light weight, insulation, cushioning and flame retardancy.

[0028] After the one-way valve plate 3, the connecting rod 12, the spring 10 and the spring 10 are assembled on the installation end surface 2, the filter layer 5 is sleeved on the outside of the grid-like skeleton 7, and then the first PU foam ring 1 is assembled on the installation end surface 2 and the outside of the filter layer 5, and the second PU foam ring 6 is assembled on the outside of the filter layer 5 and the grid-like skeleton 7 (hot melting method can be adopted) through external tooling, thereby realizing the technical effect of direct assembly and sealing. Moreover, this assembly method can ensure the sealing effect inside the filter element without the need for sealing rings and sealing gaskets, thereby improving the assembly efficiency and sealing performance of the filter element structure for the oil-gas separator.

[0029] In this embodiment, a plurality of positioning grooves 4 are provided on the surfaces of the first PU foam ring 1 and the second PU foam ring 6. Corresponding to the positioning grooves 4 are sealing protrusions on the mating surfaces of the assembly parts provided on the tooling for assembling the first PU foam ring 1 and the second PU foam ring 6. Through this structural setting, the first PU foam ring 1 or the second PU foam ring 6 can be quickly positioned when assembling the first PU foam ring 1 and the second PU foam ring 6.

[0030] In this embodiment, the filter layer 5 is composed of a PA support mesh and filter cotton, and the PA support mesh is made of stainless steel metal fiber. The PA support mesh is wound around the outside of the grid-like skeleton 7, and the filter cotton is wound around the outside of the PA support mesh.

[0031] In this embodiment, the one-way valve plate 3 and the mounting end surface 2 as well as the spring retaining ring 11 and the connecting rod 12 are connected together by a hot riveting process.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter element structure for an oil-gas separator, comprising a mounting end surface (2), wherein a grid-shaped frame (7) is arranged at an edge position of the surface of the mounting end surface (2), characterized in that: The outer side of the grid-like skeleton (7) is sleeved with a filter layer (5), and one end surface of the filter layer (5) is in contact with the surface of the mounting end surface (2) on which the grid-like skeleton (7) is mounted, and the other end surface of the filter layer (5) is flush with the end surface of the grid-like skeleton (7) away from the mounting end surface (2); A mounting hole (13) is provided in the middle of the mounting end surface (2), and a connecting rod (12) is provided inside the mounting hole (13), one end of the connecting rod (12) is connected to a one-way valve plate (3), and a spring (10) and a spring retaining ring (11) are sleeved on the outer side of the connecting rod (12); A first PU foam ring (1) is sleeved on the outer side of the mounting end surface (2), and a second PU foam ring (6) is sleeved on the outer side of the filter layer (5) away from the mounting end surface (2), and the first PU foam ring (1) and the filter layer (5) as well as the second PU foam ring (6) and the filter layer (5) are both in a sealed connection state.

2. The filter element structure for an oil-gas separator according to claim 1, characterized in that: A second sealing groove (9) is provided on the surface of the first PU foam ring (1), and the mounting end surface (2) is snap-fitted into the interior of the second sealing groove (9), and the outer surface of the mounting end surface (2) is in close contact with the inner wall of the second sealing groove (9); a first sealing groove (8) is provided on the surface of the second PU foam ring (6), and one end of the grid-like skeleton (7) and the filter layer (5) are both snap-fitted into the interior of the first sealing groove (8), and the outer surface of the filter layer (5) and the inner wall of the grid-like skeleton (7) are respectively in close contact with the inner walls on both sides of the interior of the first sealing groove (8).

3. The filter element structure for an oil-gas separator according to claim 1, characterized in that: A plurality of positioning grooves (4) are provided on the surfaces of the first PU foam ring (1) and the second PU foam ring (6).

4. The filter element structure for an oil-gas separator according to claim 1, characterized in that: The filter layer (5) is composed of a PA support mesh and filter cotton, and the PA support mesh is made of stainless steel metal fibers.

5. The filter element structure for an oil-gas separator according to claim 1, characterized in that: The one-way valve plate (3) and the mounting end surface (2) as well as the spring retaining ring (11) and the connecting rod (12) are all connected together by adopting a hot riveting process.

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