Drawer type oil mist filter element for oil mist treatment

Abstract

The utility model discloses a drawer type oil mist filter element for oil mist treatment, and relates to the technical field of oil mist filter elements, the drawer type oil mist filter element comprises a main frame, a first filter element frame is horizontally placed at the bottom end in an upper through groove, and a composite fold assembly for preventing filter cloth from being blocked is arranged in the first filter element frame. According to the drawer type oil mist filter element for oil mist treatment, by arranging the first filter element frame, the first glass fiber filter cloth, the glass fiber folded filter cloth, the oil mist collecting gap and the oil mist permeating gap, when the drawer type oil mist filter element is used, oil mist firstly passes through the glass fiber folded filter cloth at the bottom of the first glass fiber filter cloth, and the oil mist permeating gap is formed below the wrinkled surface of the glass fiber folded filter cloth; according to the anti-blocking device for the corrugated surface, the contact area with oil mist can be increased, the oil mist is gathered into oil liquid after permeating, flows downwards along the oil mist gathering gap and drips from the protrusions of the corrugated surface, the anti-blocking function of the corrugated surface is achieved, and the problem that the device does not have the anti-blocking function of the corrugated surface is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil mist filter elements, in particular to a drawer-type oil mist filter element for oil mist treatment. Background Art

[0002] Oil mist and oil fume both consist of airborne oil droplets, differing in size and quantity. Oil mist particles range in size from 1 to 10 microns, roughly the size of bacteria, while oil fume particles are smaller, around 0.1 to 1 micron, similar in size to viruses, and are more numerous. Oil mist typically originates from processes that use water-based coolants for lubrication or chip handling, such as turning, milling, grinding, and drilling.

[0003] In production workshops where oil mist is easily generated, one or more sets of drawer-type oil mist treatment equipment are generally installed to inhale the air containing oil mist. The multi-layer filter elements in the drawer-type oil mist treatment equipment can intercept the oil mist in the air layer by layer to prevent the operators from inhaling too much and causing physical damage. The filter elements of the drawer-type oil mist treatment equipment commonly available on the market are mostly similar in structure, generally consisting of a plastic outer frame with a single or multi-layer ultra-fine glass fiber filter cloth inside. The oil mist will be intercepted by the filter cloth when passing through the filter cloth. There are some functional deficiencies in actual use and there is room for improvement. For example, the surface of the filter cloth of the current filter element is mostly smooth. After intercepting a certain amount of oil mist, the oil mist converges into oil liquid and accumulates at the bottom of the filter cloth, closing the holes at the bottom of the filter cloth, reducing the air permeability efficiency of the filter element, requiring high frequency of replacement and cleaning, and it does not have the function of preventing clogging on the pleated surface.

[0004] Now, a new type of drawer-type oil mist filter element for oil mist treatment is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a drawer-type oil mist filter element for oil mist treatment, so as to solve the problem in the above-mentioned background technology that the pleated surface does not have the anti-clogging function.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a drawer-type oil mist filter element for oil mist treatment, comprising a main frame, a lower through groove is provided at the middle position of the bottom end of the main frame, an upper through groove is provided at the middle position of the top end of the main frame, a first filter element frame is horizontally placed at the bottom end of the upper through groove, and a composite pleated component is provided inside the first filter element frame to prevent filter cloth from being blocked.

[0007] The composite pleated assembly includes a first glass fiber filter cloth, which is arranged inside a first filter element frame. The bottom end of the first filter element frame is fixed with a glass fiber pleated filter cloth by sewing with glass fibers. A plurality of groups of oil mist collection gaps are provided between the top end of the glass fiber pleated filter cloth and the bottom end of the first glass fiber filter cloth, and a plurality of groups of oil mist infiltration gaps are provided at the bottom end of the glass fiber pleated filter cloth.

[0008] Preferably, the first glass fiber filter cloth and the glass fiber pleated filter cloth have the same material and thickness, and the front and rear ends and left and right sides of the first glass fiber filter cloth and the glass fiber pleated filter cloth are respectively connected to the front and rear ends and left and right sides inside the first filter element frame.

[0009] Preferably, the shape and size of the exterior of the first filter core frame are adapted to the shape and size of the interior of the upper through groove, and the first filter core frame can slide up and down along the interior of the upper through groove.

[0010] Preferably, the oil mist collecting gaps are arranged at equal intervals, and the glass fiber pleated filter cloth is elastic.

[0011] Preferably, a second filter element frame is placed horizontally on the top of the first filter element frame, and a second glass fiber filter cloth is fixedly connected to the interior of the second filter element frame, a third filter element frame is placed horizontally on the top of the second filter element frame, and a third glass fiber filter cloth is arranged inside the third filter element frame, a fourth filter element frame is placed horizontally on the top of the third filter element frame, and a fourth glass fiber filter cloth is arranged inside the fourth filter element frame, and reserved screw eyes are respectively provided at the four corners of the top of the first filter element frame, the second filter element frame, the third filter element frame and the fourth filter element frame, and the four corners of the bottom end of the upper through groove are respectively fixedly connected with internal threaded metal tubes, and fixing bolts are inserted into the interior of the internal threaded metal tubes from top to bottom.

[0012] Preferably, the first filter element frame, the second filter element frame, the third filter element frame and the fourth filter element frame have the same shape and size, the fixing bolt passes through the interior of the reserved screw eye and extends into the interior of the internal threaded metal tube, and the external thread of the fixing bolt matches the internal thread of the internal threaded metal tube.

[0013] Preferably, a first sealing ring groove is provided at the top of the outside of the main frame, a second sealing ring groove is provided at the middle position of the outside of the main frame, and a third sealing ring groove is provided at the bottom end of the outside of the main frame. A first rubber sealing ring is sleeved inside the first sealing ring groove, a second rubber sealing ring is sleeved inside the second sealing ring groove, and a third rubber sealing ring is sleeved inside the third sealing ring groove. Sealing ring ridges are respectively provided at the upper and lower ends of the outside of the first rubber sealing ring, the second rubber sealing ring and the third rubber sealing ring, and ridge grooves are provided between one ends of the sealing ring ridges.

[0014] Preferably, the first rubber sealing ring, the second rubber sealing ring and the third rubber sealing ring have the same shape and size, and are elastic.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the drawer-type oil mist filter element for oil mist treatment not only realizes the function of preventing clogging of the pleated surface, but also realizes the function of facilitating the disassembly of the filter element and the function of edge sealing;

[0016] (1) A first filter element frame, a first glass fiber filter cloth, a glass fiber pleated filter cloth, an oil mist collection gap and an oil mist infiltration gap are provided. When in use, the main frame serves as the outer frame of the filter element, and the first glass fiber filter cloth, the second glass fiber filter cloth, the third glass fiber filter cloth and the fourth glass fiber filter cloth inside the main frame constitute the filter element body. The filter element is stuck in the drawer-type filter element frame of the drawer-type oil mist treatment equipment and is used for filtering oil mist. When the oil mist passes through the filter element, it first passes through the glass fiber pleated filter cloth at the bottom of the first glass fiber filter cloth. The first glass fiber filter cloth and the glass fiber pleated filter cloth form a composite structure. There is an oil mist infiltration gap under the pleated surface of the glass fiber pleated filter cloth, which can increase the contact area with the oil mist. After the oil mist infiltrates, it gathers into oil liquid, flows downward along the oil mist collection gap, and drips from the protrusions of the pleats. The period of clogging of the first glass fiber filter cloth is prolonged, which can reduce the frequency of cleaning and realize the function of preventing clogging of the pleated surface.

[0017] (2) By providing an upper through groove, a first filter element frame, a first glass fiber filter cloth, a second filter element frame, a second glass fiber filter cloth, a third filter element frame, a third glass fiber filter cloth, a fourth filter element frame, a fourth glass fiber filter cloth, a reserved screw eye, an internally threaded metal pipe and a fixing bolt, when the filter element needs to be cleaned, the fixing bolt is loosened and pulled out. As the fixing bolt is separated from the internally threaded metal pipe and the reserved screw eye, the first filter element frame, the second filter element frame, the third filter element frame and the fourth filter element frame are free from restrictions and can be directly removed from the upper through groove for cleaning. The split filter element is easier to clean, can reduce the residual oil mist, and realizes the function of facilitating the disassembly of the filter element;

[0018] (3) By providing the first sealing ring groove, the second sealing ring groove, the third sealing ring groove, the first rubber sealing ring, the second rubber sealing ring, the third rubber sealing ring, the sealing ring ridges and the ridge grooves, when in use, as the filter element is stuck in the drawer-type filter element frame of the drawer-type oil mist treatment equipment, the first rubber sealing ring, the second rubber sealing ring and the third rubber sealing ring on the outside of the main frame are attached to the inner edge of the drawer-type filter element frame, and the sealing ring ridges and the ridge grooves can be attached by deformation to increase the sealing performance. The first sealing ring groove, the second sealing ring groove and the third sealing ring groove provide physical intervals for the installation and fixation of the first rubber sealing ring, the second rubber sealing ring and the third rubber sealing ring, thereby realizing the edge sealing function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is an enlarged top view of the first filter element frame of the present invention;

[0021] Figure 3 This is a schematic diagram of an enlarged partial cross-section of the first glass fiber filter cloth of the utility model;

[0022] Figure 4 This is an enlarged top view of the second filter element frame of the present invention;

[0023] Figure 5 This is an enlarged top view of the structure of the third filter element frame of the present invention;

[0024] Figure 6 This is an enlarged top view of the structure of the fourth filter element frame of the present invention;

[0025] Figure 7 This is a schematic diagram of the main frame structure from above of the present utility model;

[0026] Figure 8 This is a schematic diagram of the front cross-sectional structure of the main frame of the present invention;

[0027] Figure 9 This is a partial front view cross-sectional enlarged structural diagram of the third rubber sealing ring of the present invention.

[0028] In the figure: 1. main frame; 2. lower through-slot; 3. upper through-slot; 4. first filter element frame; 5. first glass fiber filter cloth; 6. pleated glass fiber filter cloth; 7. oil mist collection gap; 8. oil mist infiltration gap; 9. second filter element frame; 10. second glass fiber filter cloth; 11. third filter element frame; 12. third glass fiber filter cloth; 13. fourth filter element frame; 14. fourth glass fiber filter cloth; 15. reserved screw eye; 16. internally threaded metal pipe; 17. fixing bolt; 18. first sealing ring groove; 19. second sealing ring groove; 20. third sealing ring groove; 21. first rubber sealing ring; 22. second rubber sealing ring; 23. third rubber sealing ring; 24. sealing ring ridge; 25. ridge groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-9 A drawer-type oil mist filter element for oil mist treatment comprises a main frame 1, a lower through slot 2 is provided at the middle position of the bottom end of the main frame 1, an upper through slot 3 is provided at the middle position of the top end of the main frame 1, a first filter element frame 4 is horizontally placed at the bottom end of the interior of the upper through slot 3, and a composite pleated component is provided inside the first filter element frame 4 to prevent clogging of the filter cloth;

[0031] See also Figure 1-9 A drawer-type oil mist filter element for oil mist treatment further includes a composite pleated assembly, which includes a first glass fiber filter cloth 5, which is arranged inside a first filter element frame 4, and a glass fiber pleated filter cloth 6 is fixed to the bottom end of the first filter element frame 4 by sewing glass fibers, and multiple groups of oil mist collection gaps 7 are provided between the top end of the glass fiber pleated filter cloth 6 and the bottom end of the first glass fiber filter cloth 5, and multiple groups of oil mist infiltration gaps 8 are provided at the bottom end of the glass fiber pleated filter cloth 6;

[0032] The first glass fiber filter cloth 5 and the glass fiber pleated filter cloth 6 are made of the same material and have the same thickness. The front and rear ends and left and right sides of the first glass fiber filter cloth 5 and the glass fiber pleated filter cloth 6 are respectively connected to the front and rear ends and left and right sides of the interior of the first filter element frame 4. The shape and size of the exterior of the first filter element frame 4 are adapted to the shape and size of the interior of the upper through groove 3. The first filter element frame 4 can slide up and down along the interior of the upper through groove 3. The oil mist collection gaps 7 are arranged at equal intervals. The glass fiber pleated filter cloth 6 has elasticity. By providing a composite structure with a pleated surface, the probability of clogging can be reduced, and the frequency of filter element replacement and cleaning can be reduced.

[0033] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, the oil mist first passes through the glass fiber pleated filter cloth 6 at the bottom of the first glass fiber filter cloth 5. The first glass fiber filter cloth 5 and the glass fiber pleated filter cloth 6 form a composite structure. There are oil mist infiltration gaps 8 under the pleated surface of the glass fiber pleated filter cloth 6, which can increase the contact area with the oil mist. After the oil mist infiltrates, it gathers into oil liquid, flows downward along the oil mist collection gaps 7, and drips from the protrusions of the pleats. The clogging period of the first glass fiber filter cloth 5 is extended, and the frequency of cleaning can be reduced.

[0034] Example 2: A second filter cartridge frame 9 is placed horizontally on the top of the first filter cartridge frame 4, and a second glass fiber filter cloth 10 is fixedly connected to the interior of the second filter cartridge frame 9. A third filter cartridge frame 11 is placed horizontally on the top of the second filter cartridge frame 9, and a third glass fiber filter cloth 12 is arranged inside the third filter cartridge frame 11. A fourth filter cartridge frame 13 is placed horizontally on the top of the third filter cartridge frame 11, and a fourth glass fiber filter cloth 14 is arranged inside the fourth filter cartridge frame 13. The four corners of the tops of the first filter cartridge frame 4, the second filter cartridge frame 9, the third filter cartridge frame 11, and the fourth filter cartridge frame 13 are arranged horizontally. A reserved screw eye 15 is provided, and the four corners of the bottom end of the upper through groove 3 are respectively fixedly connected with an internally threaded metal tube 16. The internal threaded metal tube 16 is plugged with a fixing bolt 17 from top to bottom. The first filter element frame 4, the second filter element frame 9, the third filter element frame 11, and the fourth filter element frame 13 have the same shape and size. The fixing bolt 17 passes through the interior of the reserved screw eye 15 and extends into the interior of the internally threaded metal tube 16. The external thread of the fixing bolt 17 matches the internal thread of the internally threaded metal tube 16. The split filter element is easy to clean and easy to disassemble and assemble;

[0035] Specifically, if Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, loosen and pull out the fixing bolt 17. As the fixing bolt 17 disengages from the internal threaded metal tube 16 and the reserved screw eye 15, the first filter element frame 4, the second filter element frame 9, the third filter element frame 11, and the fourth filter element frame 13 are no longer restricted and can be directly removed from the upper through groove 3 for cleaning. The split filter element is easier to clean and can reduce the residual oil mist.

[0036] Embodiment 3: A first sealing ring groove 18 is provided at the top of the outside of the main frame 1, a second sealing ring groove 19 is provided at the middle position of the outside of the main frame 1, and a third sealing ring groove 20 is provided at the bottom end of the outside of the main frame 1. A first rubber sealing ring 21 is sleeved inside the first sealing ring groove 18, a second rubber sealing ring 22 is sleeved inside the second sealing ring groove 19, and a third rubber sealing ring 23 is sleeved inside the third sealing ring groove 20. The upper and lower ends of the outsides of the first rubber sealing ring 21, the second rubber sealing ring 22 and the third rubber sealing ring 23 are respectively provided with sealing ring ridges 24, and a ridge groove 25 is provided between one end of the sealing ring ridges 24. The shapes and sizes of the first rubber sealing ring 21, the second rubber sealing ring 22 and the third rubber sealing ring 23 are consistent, and the first rubber sealing ring 21, the second rubber sealing ring 22 and the third rubber sealing ring 23 are elastic, thereby increasing the sealing between the filter element and the frame;

[0037] Specifically, if Figure 1 、 Figure 8 and Figure 9As shown, the first rubber sealing ring 21, the second rubber sealing ring 22, and the third rubber sealing ring 23 on the outside of the main frame 1 are fitted to the inner edge of the drawer-type filter element frame, and the sealing ring ridges 24 and the ridge grooves 25 can fit together through deformation to increase the sealing performance. The first sealing ring groove 18, the second sealing ring groove 19, and the third sealing ring groove 20 provide physical intervals for the installation and fixation of the first rubber sealing ring 21, the second rubber sealing ring 22, and the third rubber sealing ring 23.

[0038] Working principle: When the present invention is in use, first, the main frame 1 serves as the outer frame of the filter element, and the first glass fiber filter cloth 5, the second glass fiber filter cloth 10, the third glass fiber filter cloth 12, and the fourth glass fiber filter cloth 14 inside it constitute the filter element body. The filter element is stuck in the drawer-type filter element frame of the drawer-type oil mist treatment equipment, and is used to filter the oil mist. When the oil mist passes through the filter element, it first passes through the glass fiber folded filter cloth 6 at the bottom of the first glass fiber filter cloth 5. The first glass fiber filter cloth 5 and the glass fiber folded filter cloth 6 form a composite structure. There is an oil mist infiltration gap 8 under the pleated surface of the glass fiber folded filter cloth 6, which can increase the contact area with the oil mist. After the oil mist infiltrates, it gathers into oil liquid, flows downward along the oil mist collection gap 7, and drips from the protrusions of the pleats. The period of clogging of the first glass fiber filter cloth 5 is extended, which can reduce the frequency of cleaning. When the filter element needs to be cleaned, the fixing bolts 17 are loosened and removed. As the fixing bolts 17 disengage from the internally threaded metal tube 16 and the reserved screw holes 15, the first filter element frame 4, the second filter element frame 9, the third filter element frame 11, and the fourth filter element frame 13 are freed from their restraints and can be directly removed from the upper through slot 3 for cleaning. The split filter element is easier to clean and can reduce residual oil mist. As the filter element is stuck in the drawer-type filter element frame of the drawer-type oil mist treatment device, the first rubber sealing ring 21, the second rubber sealing ring 22, and the third rubber sealing ring 23 on the exterior of the main frame 1 fit against the inner edge of the drawer-type filter element frame. The sealing ring ridges 24 and grooves 25 can deform to fit together, improving the sealing performance. The first sealing ring grooves 18, the second sealing ring grooves 19, and the third sealing ring grooves 20 provide physical space for the installation and fixation of the first rubber sealing ring 21, the second rubber sealing ring 22, and the third rubber sealing ring 23.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A drawer-type oil mist filter element for oil mist treatment, comprising a main frame (1), characterized in that: A lower through groove (2) is provided at the middle position of the bottom end of the main frame (1), an upper through groove (3) is provided at the middle position of the top end of the main frame (1), a first filter core frame (4) is horizontally placed at the bottom end inside the upper through groove (3), and a composite pleated component is provided inside the first filter core frame (4) to prevent filter cloth from being blocked; The composite pleated assembly comprises a first glass fiber filter cloth (5), the first glass fiber filter cloth (5) being arranged inside a first filter core frame (4), a glass fiber pleated filter cloth (6) being fixed to the bottom end of the first filter core frame (4) by means of glass fiber sewing, a plurality of groups of oil mist collecting gaps (7) being arranged between the top end of the glass fiber pleated filter cloth (6) and the bottom end of the first glass fiber filter cloth (5), and a plurality of groups of oil mist infiltration gaps (8) being arranged at the bottom end of the glass fiber pleated filter cloth (6).

2. The drawer-type oil mist filter element for oil mist treatment according to claim 1, characterized in that: The first glass fiber filter cloth (5) and the glass fiber pleated filter cloth (6) are made of the same material and have the same thickness. The front and rear ends and the left and right sides of the first glass fiber filter cloth (5) and the glass fiber pleated filter cloth (6) are respectively connected to the front and rear ends and the left and right sides inside the first filter element frame (4).

3. The drawer-type oil mist filter element for oil mist treatment according to claim 1, characterized in that: The shape and size of the exterior of the first filter core frame (4) are compatible with the shape and size of the interior of the upper through groove (3), and the first filter core frame (4) can slide up and down along the interior of the upper through groove (3).

4. The drawer-type oil mist filter element for oil mist treatment according to claim 1, characterized in that: The oil mist collecting gaps (7) are arranged at equal intervals, and the glass fiber folded filter cloth (6) is elastic.

5. The drawer-type oil mist filter element for oil mist treatment according to claim 1, characterized in that: A second filter core frame (9) is horizontally placed on the top of the first filter core frame (4), and a second glass fiber filter cloth (10) is fixedly connected inside the second filter core frame (9). A third filter core frame (11) is horizontally placed on the top of the second filter core frame (9), and a third glass fiber filter cloth (12) is arranged inside the third filter core frame (11). A fourth filter core frame (13) is horizontally placed on the top of the third filter core frame (11), and a fourth glass fiber filter cloth (14) is arranged inside the fourth filter core frame (13). Reserved screw eyes (15) are respectively provided at the four corners of the top of the first filter core frame (4), the second filter core frame (9), the third filter core frame (11), and the fourth filter core frame (13). The four corners of the bottom end of the upper through groove (3) are respectively fixedly connected to internal threaded metal pipes (16), and fixing bolts (17) are inserted from top to bottom into the internal threaded metal pipes (16).

6. The drawer-type oil mist filter element for oil mist treatment according to claim 5, characterized in that: The first filter element frame (4), the second filter element frame (9), the third filter element frame (11), and the fourth filter element frame (13) have the same shape and size. The fixing bolt (17) passes through the interior of the reserved screw eye (15) and extends into the interior of the internally threaded metal tube (16). The external thread of the fixing bolt (17) matches the internal thread of the internally threaded metal tube (16).

7. The drawer-type oil mist filter element for oil mist treatment according to claim 1, characterized in that: A first sealing ring groove (18) is provided at the top of the outside of the main frame (1), a second sealing ring groove (19) is provided at the middle position of the outside of the main frame (1), and a third sealing ring groove (20) is provided at the bottom of the outside of the main frame (1). A first rubber sealing ring (21) is sleeved inside the first sealing ring groove (18), a second rubber sealing ring (22) is sleeved inside the second sealing ring groove (19), and a third rubber sealing ring (23) is sleeved inside the third sealing ring groove (20). The upper and lower ends of the outside of the first rubber sealing ring (21), the second rubber sealing ring (22), and the third rubber sealing ring (23) are respectively provided with sealing ring ridges (24), and a ridge groove (25) is provided between one end of the sealing ring ridges (24).

8. The drawer-type oil mist filter element for oil mist treatment according to claim 7, characterized in that: The shapes and sizes of the first rubber sealing ring (21), the second rubber sealing ring (22), and the third rubber sealing ring (23) are consistent, and the first rubber sealing ring (21), the second rubber sealing ring (22), and the third rubber sealing ring (23) are elastic.

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