An oil mist removal air purification device

Abstract

The application provides an oil mist removing air purification device, and relates to the technical field of air purification devices.The oil mist removing air purification device comprises a box body and an oil mist filtering assembly.The box body is provided with an air inlet, an air outlet, and a gas channel between the air inlet and the air outlet.In the direction from the air inlet to the air outlet, the oil mist filtering assembly comprises a plant fiber filter screen, a plurality of metal sponge layers, and a plasma generator arranged in the gas channel in sequence.In the direction from the air inlet to the air outlet, the density of each metal sponge layer gradually increases.The oil mist removing air purification device has better purification effect.

Description

Technical Field

[0001] This invention relates to the field of air purification equipment technology, specifically to an oil mist removal air purification device. Background Technology

[0002] In some workshops, oil mist is generated in the air during production. For example, during CNC machine tool processing, a large amount of oil mist containing polychlorinated biphenyls (PCBs) is produced, which may harm the physical and mental health of workers. Oil mist deposited in the work area can easily cause workplace accidents. Large amounts of oil mist generated by high-speed cutting can adhere to equipment and workpieces for extended periods, becoming a cause of malfunctions in machine tools and electrical systems, causing considerable trouble for machine tool maintenance, and significantly reducing the machining precision of machine tools. Exhausting oil mist outdoors will also damage the environment. Existing oil mist removal equipment generally introduces oil-mist-containing air into the equipment and forces it through a filter to remove the oil mist. However, the drawback of existing oil mist removal equipment is that alloy filters have a low filtration rate and poor effectiveness. Summary of the Invention

[0003] Therefore, this invention proposes an oil mist removal air purification device that can effectively remove oil mist from the air.

[0004] The technical solution of the present invention is as follows:

[0005] An oil mist removal air purification device includes a housing and an oil mist filter assembly; the housing is provided with an air inlet, an air outlet, and a gas channel located between the air inlet and the air outlet; along the direction from the air inlet to the air outlet, the oil mist filter assembly includes a plant fiber filter, a plurality of metal sponge layers, and a plasma generator sequentially disposed in the gas channel; and along the direction from the air inlet to the air outlet, the density of each of the metal sponge layers increases sequentially.

[0006] Furthermore, the housing is equipped with a first smoke sensor located at the air inlet, a second smoke sensor located at the exhaust outlet, and an ozone concentration sensor located at the exhaust outlet.

[0007] Furthermore, a four-sided pyramidal end cap is fixed to one end of the housing, and a circular ring coaxial with the end cap is fixed to the tip of the end cap; the air inlet includes the inner hole of the circular ring and a through hole constructed on the end cap.

[0008] Furthermore, relative to the end with the end cap, the other end of the housing is provided with a circular cover that communicates with the exhaust port of the housing. The cover is provided with a blower, which is used to cause the gas to move from the air inlet to the exhaust port; and the cover is provided with an upward-facing outlet.

[0009] Furthermore, corresponding to each of the metal sponge layers, an insertion port is constructed on the housing; each of the metal sponge layers is removable and disposed within the corresponding insertion port.

[0010] Furthermore, the metal sponge layer includes an outer frame and an inner frame; the outer frame includes a rigid first frame and a soft connector disposed on the inner wall of the first frame, and the soft connector is corrugated; the inner frame includes a second frame connected to the inner wall of the connector and a metal sponge disposed on the inner wall of the second frame.

[0011] Furthermore, push rods are fixed on both sides of the second frame; a first elongated hole is provided on the first frame, and the length direction of the first elongated hole is parallel to the height direction of the box, and the push rod can pass through the first elongated hole; a vibration device is provided on the box, and the vibration device can be connected to the push rod and drive the push rod to slide along the height direction of the box.

[0012] Furthermore, the excitation device includes two guide rods fixed to the housing, the two guide rods being arranged parallel and spaced apart, and the axial direction of the two guide rods being parallel to the height direction of the housing. A slide block is slidably provided on the two guide rods, and elastic elements are respectively abutted on the upper and lower sides of the slide block. A motor is fixedly provided on the slide block, and an eccentric wheel is fixedly sleeved on the motor shaft of the motor. A connecting block is detachably provided on the slide block, and the connecting block is detachably fixedly connected to the push rod.

[0013] Furthermore, the connecting block is provided with a second elongated hole, the length direction of which is inclined relative to the height direction of the housing, and several rollers are rotatably provided on the two side walls of the second elongated hole that are parallel to its length direction; the end of the push rod is provided with an elongated insertion end, which is inserted into the second elongated hole and can slide within the second elongated hole.

[0014] Furthermore, the slide block has two through holes, and the connecting block has two through holes that are opposite to the two through holes, so that bolts can pass through the through holes and the opposite through holes and be screwed into the nuts to form a connection between the slide block and the connecting block.

[0015] The working principle and beneficial effects of this invention are as follows:

[0016] The oil mist removal air purification device provided by this invention involves passing oil mist-containing air sequentially through a plant fiber filter, several layers of metal sponge, and a plasma generator. The plant fiber material filters and adsorbs larger oil mist particles. The sequentially arranged sponge materials gradually intercept smaller oil mist particles that pass through the plant fiber material. The plasma generator electrolyzes charged ions through high-voltage discharge; these free charged ions then undergo oxidation-reduction reactions with oil fumes and organic matter, thereby removing remaining oil mist particles. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 An exploded view of the oil mist removal air purification device provided in an embodiment of the present invention;

[0019] Figure 2 An exploded view from another angle of the oil mist removal air purification device provided in an embodiment of the present invention;

[0020] Figure 3 An explosion of another component of the oil mist removal air purification device provided in this embodiment of the invention;

[0021] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0023] Figure 6 for Figure 3 A magnified view of a section at point C.

[0024] In the diagram: 100, housing; 101, air inlet; 102, gas passage; 103, socket; 200, oil mist filter assembly; 210, plant fiber filter; 220, metal sponge layer; 221, first frame; 222, connector; 223, second frame; 224, metal sponge; 225, push rod; 226, insertion end; 230, plasma generator; 201, first elongated hole; 300, end cap; 310, ring; 400, cover; 401, outlet; 500, vibration device; 510, guide rod; 520, slide; 530, elastic element; 540, motor; 550, eccentric wheel; 560, connecting block; 561, roller; 501, second elongated hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] This embodiment provides an oil mist removal air purification device, see reference. Figure 1 and Figure 2 As shown, it includes a housing 100 and an oil mist filter assembly 200. The housing 100 has an air inlet 101, an exhaust outlet, and a gas channel 102 located between the air inlet 101 and the exhaust outlet. Along the direction from the air inlet 101 to the exhaust outlet, the oil mist filter assembly 200 includes a plant fiber filter, several metal sponge layers 220, and a plasma generator 230 sequentially disposed within the gas channel 102; and along the direction from the air inlet 101 to the exhaust outlet, the density of each of the metal sponge layers 220 increases sequentially.

[0027] Based on the above overall structure, when the oil mist removal air purification device of this embodiment is in use, the oil mist-containing air can be introduced into the housing 100 from the air inlet 101, and after being filtered and purified by the oil mist filter component 200 in the gas channel 102, it can be discharged from the exhaust port on the housing 100.

[0028] The oil mist filter assembly 200 purifies oil-mist-containing air as follows: First, the oil-mist-containing air passes through a plant fiber filter 210. Larger oil mist particles are directly intercepted by the filter, while smaller particles are absorbed by the plant fibers. Simultaneously, after absorbing the oil mist, the plant fibers swell and shrink their pores, further enhancing the interception of fine oil mist particles. It should be noted that the plant fiber filter 210 can be an existing product, and its details will not be elaborated upon here.

[0029] Secondly, the pore size of the sponge metal layer is smaller than that of the plant fiber filter screen. Therefore, smaller oil mist particles that are not filtered out by the plant fiber filter screen 210 can be filtered out by the sponge metal layer. Furthermore, the pore size of the sponge metal layer is inversely related to the density of the sponge metal; that is, the higher the density of the sponge metal, the smaller the pore size. Therefore, in this embodiment, by setting several layers of sponge metal with different densities, oil mist of different particle sizes can be filtered out sequentially, thereby achieving a better filtration effect on oil mist. It should be noted that existing products can also be used as the sponge metal material, which will not be described in detail here.

[0030] Finally, by setting up the plasma generator 230, high-voltage discharge electrolysis generates charged ions. These charged ions undergo oxidation-reduction reactions with oil fumes and organic matter, removing oil mist that was not filtered out by the plant fiber filter layer and the metal sponge layer 220, thus further purifying the gas. It should be noted that the plasma generator 230 can also be an existing product, which will not be described in detail here.

[0031] Overall, by sequentially filtering out oil mist particles in the air through the aforementioned plant fiber filter, each metal sponge layer 220, and plasma generator 230, the oil mist particles in the air can be filtered out relatively well.

[0032] In terms of specific structure, refer to Figure 1 As shown, in this embodiment, a four-sided pyramidal end cap 300 is fixed on one end of the housing 100, and a ring 310 coaxial with the end cap 300 is fixed on the tip of the end cap 300; the air inlet 101 includes the inner hole of the ring 310 and a through hole constructed on the end cap 300. By setting the above structure, oil mist can enter the housing 100 from the air inlet 101.

[0033] refer to Figure 1 and Figure 2 As shown, relative to the end with end cap 300, the other end of the housing 100 is provided with a circular cover 400 that communicates with the exhaust port of the housing 100. An exhaust fan is installed inside the cover 400, which is used to move gas from the air inlet 101 to the exhaust port. The cover 400 also has an upward-facing exhaust port 401. In this embodiment, the rotation of the exhaust fan forces air to flow from the air inlet 101 of the housing 100 to the exhaust port of the housing 100, and then discharges it from the exhaust port 401 on the cover 400.

[0034] In this embodiment, the housing 100 is equipped with a first smoke sensor located at the air inlet 101 and a second smoke sensor located at the exhaust outlet. By providing these first and second smoke sensors, the purification effect of the oil mist removal air purification device can be determined based on their detection results, allowing for appropriate measures to be taken. For example, if the treatment effect is not as expected, the oil mist filter assembly 200 can be replaced, or the speed of the induced draft fan can be reduced. It should be noted that the first and second smoke sensors can be existing products, and will not be described in detail here. Since this does not affect understanding, the first and second smoke sensors are not shown in the accompanying drawings of this embodiment.

[0035] In this embodiment, an ozone concentration sensor is also provided on the housing 100 at the exhaust port. Since the plasma generator 230 produces ozone, by setting this ozone concentration sensor to monitor the ozone concentration in the gas discharged from the oil mist removal air purification device, appropriate measures can be taken when the ozone concentration in the discharged gas exceeds a preset concentration threshold. It should be noted that the ozone concentration sensor can be an existing product, which will not be described in detail here. Since it does not affect understanding, the ozone concentration sensor is not shown in the accompanying drawings of this embodiment.

[0036] In this embodiment, reference Figure 3 As shown, for each metal sponge layer 220, a slot 103 is provided on the housing 100, and each metal sponge layer 220 can be pulled out into the corresponding slot 103. That is, in this embodiment, each metal sponge layer 220 can be inserted into the corresponding slot 103 to filter air containing oil mist, and each metal sponge layer 220 can also be pulled out from the corresponding slot 103 to clean or replace the sponge metal layer.

[0037] refer to Figure 3 and Figure 4 As shown, the metal sponge layer 220 of this embodiment includes an outer frame and an inner frame; the outer frame includes a rigid first frame 221 and a flexible connector 222 disposed on the inner wall of the first frame 221, and the flexible connector 222 is corrugated; the inner frame includes a second frame 223 connected to the inner wall of the connector 222, and a metal sponge 224 disposed on the inner wall of the second frame 223. Specifically, the metal sponge 224 filters and adsorbs oil mist particles.

[0038] In this embodiment, by setting the metal sponge layer 220 with the above structure, the inner frame can have displacement relative to the outer frame by extending or retracting the soft connector 222. When the inner frame vibrates under the drive of the excitation device 500 described below, the oil mist particles adsorbed on the metal sponge body 224 can be detached from the metal sponge body 224 by the vibration of the inner frame, thereby extending the single use time of each metal sponge layer 220.

[0039] refer to Figure 3As shown, in this embodiment, push rods 225 are fixed on both sides of the second frame 223; a first elongated hole 201 is provided on the first frame 221, and the length direction of the first elongated hole 201 is parallel to the height direction of the box 100, through which the push rods 225 can pass. Furthermore, a vibration excitation device 500 is provided on the box 100, which can connect with the push rods 225 and drive the push rods 225 to slide along the height direction of the box 100. That is, in this embodiment, the vibration of the second frame 223 is achieved by the vibration excitation device 500 driving the push rods 225 to slide back and forth along the height direction of the box 100.

[0040] In terms of specific structure, refer to Figure 3 As shown, the vibration device 500 of this embodiment includes two guide rods 510 fixed on the housing 100. The two guide rods 510 are arranged in parallel and spaced apart, and the axial direction of the two guide rods 510 is parallel to the height direction of the housing 100. A slide block 520 is slidably provided on the two guide rods 510, and elastic members 530 abut against the upper and lower sides of the slide block 520 respectively. A motor 540 is fixed on the slide block 520, and an eccentric wheel 550 is fixedly sleeved on the motor shaft of the motor 540. A connecting block 560 is detachably provided on the slide block 520, and the connecting block 560 is detachably fixedly connected to the push rod 225.

[0041] In this embodiment, after the connecting block 560 is fixed on the slide block 520 and the motor 540 is started, the motor 540 drives the eccentric wheel 550 to rotate. The rotation of the eccentric wheel 550 will cause the slide block 520 to be subjected to an unbalanced centrifugal force, thereby enabling the slide block 520 to slide back and forth along the axial direction of the guide rod 510, thereby driving the push rod 225 to move up and down back and forth, causing the metal sponge 224 to vibrate along the height direction of the housing 100.

[0042] In this embodiment, the width of the first elongated hole 201 is greater than the diameter of the push rod 225, allowing the push rod 225 to move within the first elongated hole 201 along its width direction. This means the sponge metal body can have displacement relative to the housing 100 along the length of the housing 100. This allows the metal sponge body 224 to vibrate not only up and down but also along the length of the housing 100.

[0043] refer to Figure 5As shown, in this embodiment, a second elongated hole 501 is constructed on the connecting block 560, and the length direction of the second elongated hole 501 is inclined relative to the height direction of the housing 100. Several rollers 561 are rotatably provided on two side walls of the second elongated hole 501 parallel to its length direction. The end of the push rod 225 is provided with an elongated insertion end 226, which extends into the second elongated hole 501 and abuts against the outer peripheral surfaces of the rollers 561 on both sides.

[0044] In this embodiment, by providing the aforementioned second elongated hole 501 and insertion end 226, when the slide block 520 vibrates up and down due to the rotation of the eccentric block, the position change of the insertion end 226 within the second elongated hole 501, due to the inclined arrangement of the second elongated hole 501, will cause the insertion end 226, i.e., the sponge metal body, to have displacement along the length direction of the housing 100. Therefore, by causing the second elongated hole 501 to move up and down frequently with the slide block 520, the metal sponge body 224 can be made to vibrate along the length direction of the housing 100. Overall, in this embodiment, by providing the aforementioned excitation mechanism, the metal sponge body 224 can be made to vibrate both along the height direction of the housing 100 and along the length direction of the housing 100.

[0045] In this embodiment, the slide 520 has two through holes, and the connecting block 560 has two through holes that correspond one-to-one with the two through holes. Bolts are passed through the through holes and the corresponding through holes and screwed into the nuts to form a connection between the slide 520 and the connecting block 560. That is, in this embodiment, the connection between the connecting block 560 and the slide 520 can be formed by a bolt pair, thereby allowing the connecting block 560 and the slide 520 to be connected or separated.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air purification device for removing oil mist, characterized in that: The device includes a housing (100) and an oil mist filter assembly (200). The housing (100) is provided with an air inlet (101), an exhaust outlet, and a gas channel (102) located between the air inlet (101) and the exhaust outlet. Along the direction from the air inlet (101) to the exhaust outlet, the oil mist filter assembly (200) includes a plant fiber filter, a plurality of metal sponge layers (220), and a plasma generator (230) arranged sequentially in the gas channel (102). The density of each metal sponge layer (220) increases sequentially along the direction from the air inlet (101) to the exhaust outlet. Corresponding to each of the metal sponge layers (220), an insertion port (103) is respectively constructed on the housing (100); each of the metal sponge layers (220) is removably disposed in the corresponding insertion port (103); The metal sponge layer (220) includes an outer frame and an inner frame; the outer frame includes a rigid first frame (221) and a soft connector (222) disposed on the inner wall of the first frame (221), and the soft connector (222) is corrugated; the inner frame includes a second frame (223) connected to the inner wall of the connector (222) and a metal sponge (224) disposed on the inner wall of the second frame (223). Push rods (225) are fixed on both sides of the second frame (223); a first elongated hole (201) is provided on the first frame (221), and the length direction of the first elongated hole (201) is parallel to the height direction of the box (100), and the push rod (225) can pass through the first elongated hole (201); a vibration device (500) is provided on the box (100), and the vibration device (500) can be connected to the push rod (225) and can drive the push rod (225) to slide along the height direction of the box (100); The excitation device (500) includes two guide rods (510) fixed on the housing (100). The two guide rods (510) are arranged in parallel and spaced apart, and the axial direction of the two guide rods (510) is parallel to the height direction of the housing (100). A slide block (520) is slidably provided on the two guide rods (510), and elastic elements (530) are respectively abutted on the upper and lower sides of the slide block (520). A motor (540) is fixed on the slide block (520), and an eccentric wheel (550) is fixedly sleeved on the motor shaft of the motor (540). A connecting block (560) is detachably provided on the slide block (520), and the connecting block (560) is detachably fixedly connected to the push rod (225). The connecting block (560) is provided with a second elongated hole (501). The length direction of the second elongated hole (501) is inclined relative to the height direction of the box (100). Several rollers (561) are rotatably provided on the two side walls of the second elongated hole (501) that are parallel to its length direction. The end of the push rod (225) is provided with an elongated insertion end (226). The insertion end (226) is inserted into the second elongated hole (501) and can slide in the second elongated hole (501).

2. The oil mist removal air purification equipment according to claim 1, characterized in that, The housing (100) is provided with a first smoke sensor located at the air inlet (101), a second smoke sensor located at the exhaust outlet, and an ozone concentration sensor located at the exhaust outlet.

3. The oil mist removal air purification device according to claim 1, characterized in that, One end of the housing (100) is fixedly provided with a four-sided pyramidal end cap (300), and a ring (310) coaxial with the end cap (300) is fixedly provided at the tip of the end cap (300); the air inlet (101) includes the inner hole of the ring (310) and a through hole constructed on the end cap (300).

4. The oil mist removal air purification device according to claim 3, characterized in that, Relative to the end with the end cap (300), the other end of the housing (100) is provided with a circular cover (400) that communicates with the exhaust port of the housing (100). The cover (400) is provided with an exhaust fan, which is used to cause the gas to move from the air inlet (101) to the exhaust port; and the cover (400) is provided with an upward-facing exhaust port (401).

5. The oil mist removal air purification device according to claim 1, characterized in that, The slide block (520) has two through holes, and the connecting block (560) has two through holes that are opposite to the two through holes, so that a bolt can pass through the through holes and the opposite through holes and be screwed into the nut to form a connection between the slide block (520) and the connecting block (560).

Images