Double-separation oil mist separation filter element with folding outside and winding inside

Abstract

The utility model discloses an externally-folded and internally-wound double-separation oil mist separation filter element, and aims to solve the problems that an existing oil mist separation filter element is a wound filter element, the filtering area and the size of the filter element are small, the filter element is easy to deform, and the service life of the whole filter element is influenced. The filter element comprises an upper cover and a lower cover, a filter material cylinder is arranged between the upper cover and the lower cover, the upper cover is axially provided with a liquid inlet hole, the liquid inlet hole is communicated with a cavity of the filter material cylinder, one end of the filter material cylinder is inserted into the upper cover, the other end of the filter material cylinder is inserted into the lower cover, and the filter material cylinder comprises an inner net, an inner filter layer, an outer filter layer and an outer net. According to the utility model, a double-separation mode of folding outside and winding inside is adopted, so that a larger effective filtering area can be achieved, the outer filtering layer formed by folding and winding is not easy to deform, the outer net is used as a pre-filtering layer of the folding filter element body, larger impurities and dirt can be blocked, and the service life of the whole filter element is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically relating to a dual-separation oil mist separation filter element with external folding and internal winding. Background Technology

[0002] With the acceleration of industrialization, oil mist generated in industrial production poses an increasingly serious threat to the environment and human health. Oil mist contains various harmful substances, such as oil droplets, particulate matter, and volatile organic compounds, which not only pollute the air but may also cause respiratory diseases, skin allergies, and other health problems. Furthermore, oil mist can damage equipment, reducing its lifespan and performance. As the core component of oil mist purification equipment, the performance of the oil mist separator filter element directly affects the separation effect and purification efficiency. High-quality oil mist separator filters can efficiently remove harmful substances from oil mist, reducing harm to the environment and human health, while protecting equipment and improving production efficiency.

[0003] Existing oil mist separation filter elements are mainly spiral wound filter elements represented by cloth. The filter element is generally round, with one end closed and the other end open. Because the filtration area and filter element volume of spiral wound filter elements are small, they cannot achieve the maximum effective filtration area, and the filter element is easy to deform, which affects the service life of the entire filter element. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-separation oil mist separation filter element with external folding and internal winding. This filter element aims to solve the problems of existing oil mist separation filter elements being wound filter elements, with small filtration area and filter element volume, failing to achieve the maximum effective filtration area, and being prone to deformation, which affects the service life of the entire filter element.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a dual-separation oil mist separator filter element with external folding and internal winding. The filter element includes an upper cover and a lower cover, and a filter media cylinder is provided between the upper cover and the lower cover. The upper cover has an axial liquid inlet hole that communicates with the cavity of the filter media cylinder. One end of the filter media cylinder is inserted into the upper cover, and the other end of the filter media cylinder is inserted into the lower cover. The filter media cylinder includes an inner mesh, an inner filter layer, an outer filter layer, and an outer mesh. The inner mesh and the outer mesh are made of rolled sheet metal. The inner filter layer is made of multiple layers of filter media wound together, and the outer filter layer is made of multiple layers of filter media folded and then wound together.

[0008] Preferably, the upper cover includes a connecting part, a mounting part, a groove part and an extension part arranged vertically in sequence, and the lower cover has an annular groove on the side near the upper cover. The inner mesh is located inside the extension part, the inner filter layer and the outer filter layer are in contact with the groove part, and the outer mesh is sleeved on the outside of the mounting part.

[0009] Furthermore, the inner filter layer includes filter cotton, a first middle mesh, a first protective cotton, filter material, a second protective cotton, and a second middle mesh, which are stacked in sequence.

[0010] Furthermore, a wire guide is installed between the lower cover and the inner wall of the filter media cylinder.

[0011] Furthermore, multiple connecting rods are fixedly connected to the lower surface of the connecting part, and a fixing plate is provided on the lower side of the lower cover. The fixing plate is equipped with a limit component inside, which is used to fix the connecting rods.

[0012] Furthermore, the limiting component includes a cavity inside the fixed plate. The upper surface of the fixed plate has a through hole corresponding to the connecting rod. The inner top wall of the cavity is rotatably connected to a lead screw via a bearing. The outer surface of the lead screw is threaded with a rotating shaft. A limiting plate is fixedly connected to the outer surface of the rotating shaft. The outer side of the limiting plate has a through groove corresponding to the connecting rod. The end of the connecting rod away from the connecting part has a slot. The bottom end of the rotating shaft penetrates the lower surface of the fixed plate.

[0013] Furthermore, a groove is provided at the bottom of the rotating shaft, a wrench groove is provided at the bottom of the lead screw and located inside the groove, and a limit block corresponding to the connecting rod is fixedly connected to the limit plate.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model uses multiple layers of filter material to form the inner filter layer of the filter media cartridge, and multiple layers of filter material to form the outer filter layer after folding and winding. Due to the double separation method of outer folding and inner winding, a larger effective filtration area can be achieved. Furthermore, the filter media cartridge is equipped with an inner mesh, an outer mesh, a first middle mesh, and a second middle mesh made of galvanized steel plate, which can provide good support for the filter media cartridge and make the outer filter layer formed by folding and winding less prone to deformation. The outer mesh, as a pre-filtration layer of the folded filter element, can block larger impurities and dirt, thereby improving the service life of the entire filter element.

[0017] During installation, the connecting rod is inserted into the cavity and groove through the through hole. Then, the bottom end of the rotating shaft is rotated to make the limiting plate rotate into the slot of the connecting rod. Then, the screw is rotated to drive the limiting plate of the rotating shaft to move downward. During the movement, the limiting plate can pull the connecting rod and the upper cover downward, so that the upper cover and the lower cover are close to each other and fixed together with the filter media cartridge. When a large amount of particulate matter is adhered to the surface of the filter media cartridge, the filter media cartridge can be easily removed for replacement or cleaning, thereby improving the efficiency of oil mist separation filter element in capturing oil mist. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model.

[0019] Figure 2 This is a top view cross-sectional structural diagram of Embodiment 1 of this utility model.

[0020] Figure 3 This is a frontal cross-sectional structural diagram of Embodiment 1 of this utility model.

[0021] Figure 4 This is the utility model Figure 3 A magnified structural diagram of point A in the middle.

[0022] Figure 5 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.

[0023] Figure 6 This is a frontal cross-sectional structural diagram of Embodiment 2 of this utility model.

[0024] Figure 7 This is the utility model Figure 6 A magnified structural diagram at point B in the middle.

[0025] Figure 8 This is a schematic diagram of the limiting component of this utility model.

[0026] The markings in the attached diagram are as follows: 1. Top cover; 2. Bottom cover; 3. Filter media cylinder; 4. Liquid inlet hole; 5. Inner mesh; 6. Inner filter layer; 7. Outer filter layer; 8. Outer mesh; 9. Guide wire piece; 101. Connecting part; 102. Mounting part; 103. Groove part; 104. Extension part; 201. Annular groove; 601. Filter cotton; 602. First middle mesh; 603. First protective cotton; 604. Filter media; 605. Second protective cotton; 606. Second middle mesh; 10. Connecting rod; 11. Fixing plate; 1201. Cavity; 1202. Through hole; 1203. Lead screw; 1204. Rotating shaft; 1205. Limiting plate; 1206. Through groove; 1207. Slot; 1208. Groove; 1209. Wrench groove; 1210. Limiting block. Detailed Implementation

[0027] Example 1

[0028] This specific embodiment is a dual-separation oil mist separator filter element with external folding and internal winding, and its structural schematic diagram is shown below. Figures 1-4As shown, the filter element includes an upper cover 1 and a lower cover 2. A filter media cylinder 3 is disposed between the upper cover 1 and the lower cover 2. An inlet hole 4 is provided axially on the upper cover 1. The inlet hole 4 communicates with the cavity of the filter media cylinder 3. One end of the filter media cylinder 3 is inserted into the upper cover 1, and the other end of the filter media cylinder 3 is inserted into the lower cover 2. Oil enters into the filter media cylinder 3 through the inlet hole 4 and is filtered and discharged by the filter media cylinder 3. The filter media cylinder 3 includes an inner mesh 5, an inner filter layer 6, an outer filter layer 7, and an outer mesh 8. The inner mesh 5 and the outer mesh 8 are made of rolled sheet metal. The inner filter layer 6 is made of multiple layers of filter media wound together. The outer filter layer 7 is made of multiple layers of filter media folded and then rolled together. The outer mesh 8 serves as a pre-filtration layer for the folded filter element body and can block larger impurities and dirt.

[0029] By using multiple layers of filter material to form the inner filter layer 6 of the filter media cartridge 3 and multiple layers of filter material to form the outer filter layer 7 after folding and winding, a larger effective filtration area can be achieved due to the double separation method of outer folding and inner winding. Furthermore, the filter media cartridge 3 is equipped with an inner mesh 5, an outer mesh 8, a first middle mesh 602, and a second middle mesh 606 made of galvanized sheet, which can provide good support for the filter media cartridge 3 and make the outer filter layer 7 formed by folding and winding less prone to deformation. The outer mesh 8, as a pre-filtration layer of the folded filter element, can block larger impurities and dirt, thereby improving the service life of the entire filter element.

[0030] like Figure 3 and Figure 4 As shown: In this embodiment, the upper cover 1 includes a connecting part 101, a mounting part 102, a groove part 103 and an extension part 104 arranged vertically in sequence. The lower cover 2 has an annular groove 201 on the side near the upper cover 1. The inner mesh 5 is located inside the extension part 104. The inner filter layer 6 and the outer filter layer 7 are in contact with the groove part 103. The outer mesh 8 is sleeved on the outside of the mounting part 102. The upper cover 1 and the lower cover 2 are made of galvanized sheet. The inner mesh 5, the inner filter layer 6, the outer filter layer 7 and the outer mesh 8 are all bonded and fixed to the upper cover 1 and the lower cover 2 by adhesive.

[0031] like Figure 2 and Figure 4 As shown: In this embodiment, the inner filter layer 6 includes filter cotton 601, first mesh 602, first protective cotton 603, filter material 604, second protective cotton 605, and second mesh 606 stacked in sequence. Filter cotton 601 is made of PE, first mesh 602 and second mesh 606 are made of galvanized steel, and first protective cotton 603 and second protective cotton 605 are made of T20 non-woven fabric. A wire guide 9 is installed between the lower cover 2 and the inner wall of the filter material cylinder 3.

[0032] Example 2

[0033] like Figure 4-8As shown, unlike Embodiment 1, the inner mesh 5, inner filter layer 6, outer filter layer 7, and outer mesh 8 are all fixed to the upper cover 1 and lower cover 2 with adhesive. Multiple connecting rods 10 are fixedly connected to the lower surface of the connecting part 101. A fixing plate 11 is provided on the lower side of the lower cover 2. A limiting component is provided inside the fixing plate 11. The limiting component is used to fix the connecting rods 10. The limiting component can make the upper cover 1 and lower cover 2 close to each other and fixed together with the filter media cylinder 3. When a large amount of particulate matter adheres to the surface of the filter media cylinder 3, the filter media cylinder 3 can be easily removed for replacement or cleaning, thereby improving the efficiency of the oil mist separation filter element in capturing oil mist.

[0034] like Figure 6 , Figure 7 and Figure 8 As shown: In this embodiment, the limiting component includes a cavity 1201 formed inside the fixing plate 11. The upper surface of the fixing plate 11 has a through hole 1202 corresponding to the connecting rod 10. A lead screw 1203 is rotatably connected to the inner top wall of the cavity 1201 via a bearing. A rotating shaft 1204 is threadedly connected to the outer surface of the lead screw 1203. A limiting disk 1205 is fixedly connected to the outer surface of the rotating shaft 1204. A through groove 1206 corresponding to the connecting rod 10 is formed on the outer side of the limiting disk 1205. A slot 1207 is provided at the end of the rod 10 away from the connecting part 101, and the bottom end of the rotating shaft 1204 passes through the lower surface of the fixing plate 11; a groove 1208 is provided at the bottom end of the rotating shaft 1204, and a wrench groove 1209 is provided at the bottom end of the lead screw 1203 and is located inside the groove 1208; a limiting block 1210 corresponding to the connecting rod 10 is fixedly connected to the limiting plate 1205, and the limiting block 1210 can limit the rotation position of the limiting plate 1205 to prevent the limiting plate 1205 from rotating continuously.

[0035] During installation, the connecting rod 10 is inserted into the cavity 1201 and the through groove 1206 through the through hole 1202. Then, the bottom end of the rotating shaft 1204 is rotated to make the limiting plate 1205 rotate into the slot 1207 of the connecting rod 10. Then, the screw 1203 is rotated to drive the limiting plate 1205 of the rotating shaft 1204 to move downward. During the movement, the limiting plate 1205 can pull the connecting rod 10 and the upper cover 1 downward, so that the upper cover 1 and the lower cover 2 are close to each other and fixed together with the filter media cylinder 3.

[0036] Working principle: During installation, the outer mesh 8 of the filter media cartridge 3 is fitted onto the outside of the mounting part 102. At this time, the inner mesh 5, inner filter layer 6, and outer filter layer 7 are in contact with the groove part 103. Then, the fixing plate 11 is installed on the lower side of the lower cover 2. At this time, the connecting rod 10 will be inserted into the cavity 1201 through the through hole 1202. At the same time, the connecting rod 10 is located in the through groove 1206 of the limiting plate 1205. Then, the bottom end of the rotating shaft 1204 is rotated to make the limiting plate 1205 rotate. At this time, the limiting plate 1205 will rotate into the slot 1207 of the connecting rod 10. Then, a wrench is inserted. The screw 1203 rotates within the groove 1209. Since the screw 1203 is threadedly connected to the rotating shaft 1204, the screw 1203 can drive the limiting plate 1205 of the rotating shaft 1204 to move downward during rotation. During the movement, the limiting plate 1205 can pull down the connecting rod 10 and the upper cover 1, thereby bringing the upper cover 1 and the lower cover 2 closer together and fixing them together with the filter media cartridge 3. When a large amount of particulate matter adheres to the surface of the filter media cartridge 3, the filter media cartridge 3 can be easily removed for replacement or cleaning, improving the efficiency of oil mist separation filter element in capturing oil mist.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A double separation oil mist separation filter cartridge of outer folding and inner winding type, comprising an upper cover (1) and a lower cover (2), characterized in that: A filter media cylinder (3) is provided between the upper cover (1) and the lower cover (2). The upper cover (1) has an axial liquid inlet hole (4) that communicates with the cavity of the filter media cylinder (3). One end of the filter media cylinder (3) is inserted into the upper cover (1), and the other end of the filter media cylinder (3) is inserted into the lower cover (2). The filter media cylinder (3) includes an inner mesh (5), an inner filter layer (6), an outer filter layer (7), and an outer mesh (8). The inner mesh (5) and the outer mesh (8) are made of rolled sheet metal. The inner filter layer (6) is made of multiple layers of filter material wound together. The outer filter layer (7) is made of multiple layers of filter material folded and then wound together.

2. The double separation oil mist separation cartridge of outer folding and inner winding of claim 1, characterized in that, The upper cover (1) includes a connecting part (101), a mounting part (102), a groove part (103) and an extension part (104) arranged vertically in sequence. The lower cover (2) has an annular groove (201) on the side near the upper cover (1). The inner mesh (5) is located inside the extension part (104). The inner filter layer (6) and the outer filter layer (7) are in contact with the groove part (103). The outer mesh (8) is sleeved on the outside of the mounting part (102).

3. The double separation oil mist separation cartridge of outer folded and inner wrapped of claim 2, wherein, The inner filter layer (6) includes filter cotton (601), first middle mesh (602), first protective cotton (603), filter material (604), second protective cotton (605) and second middle mesh (606) stacked in sequence.

4. The double separation oil mist separation cartridge of outer folded and inner wrapped of claim 3, wherein, A wire piece (9) is installed between the lower cover (2) and the inner wall of the filter media cylinder (3).

5. The double separation oil mist separation cartridge of claim 2, wherein, Multiple connecting rods (10) are fixedly connected to the lower surface of the connecting part (101). A fixing plate (11) is provided on the lower side of the lower cover (2). A limiting component is provided inside the fixing plate (11). The limiting component is used to fix the connecting rods (10).

6. The double separation oil mist separation cartridge of outer folded and inner wrapped of claim 5, wherein, The limiting component includes a cavity (1201) inside the fixed plate (11). The upper surface of the fixed plate (11) has a through hole (1202) corresponding to the connecting rod (10). The inner top wall of the cavity (1201) is rotatably connected to a lead screw (1203) via a bearing. The outer surface of the lead screw (1203) is threaded with a rotating shaft (1204). The outer surface of the rotating shaft (1204) is fixedly connected to a limiting plate (1205). The outer side of the limiting plate (1205) has a through groove (1206) corresponding to the connecting rod (10). The end of the connecting rod (10) away from the connecting part (101) has a slot (1207). The bottom end of the rotating shaft (1204) penetrates the lower surface of the fixed plate (11).

7. The double separation oil mist separation cartridge of outer folded and inner wrapped of claim 6, wherein, The bottom end of the rotating shaft (1204) is provided with a groove (1208), the bottom end of the lead screw (1203) is provided with a wrench groove (1209) and located inside the groove (1208), and a limiting block (1210) corresponding to the connecting rod (10) is fixedly connected to the limiting plate (1205).

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