Circulating type oil mist purification and separation equipment

Abstract

The utility model discloses circulating type oil mist purification and separation equipment which comprises a purification and separation shell, a filter element is supported in the purification and separation shell through a supporting seat, an air outlet pipe is arranged on a top plate of the purification and separation shell, the top of the air outlet pipe is connected with a first pipeline valve, the air outlet pipe is communicated with a connecting pipe, and the connecting pipe is provided with a valve and connected with external blowing equipment. An air inlet pipe is arranged on a bottom plate of the purification and separation shell; an inlet and outlet pipeline valve of each purification and separation device is closed, air is blown into the purification and separation shell through a connecting pipe by an air blowing device, and oil stains on a filter element are blown outwards, so that the oil stains can flow downwards to the bottom of the purification and separation shell to be discharged; oil stains on the outer wall of the filter element are scraped downwards through the annular plate, so that the oil stains flow downwards to the bottom of the purification and separation shell to be discharged; after being filtered at the previous stage, the oil dirt gas enters the next stage of purification and separation equipment, is filtered again after being filtered at the previous stage, and is finally exhausted by the exhaust fan, so that the filtering effect is good.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil pollution purification equipment, specifically relating to a circulating oil mist purification and separation device. Background Technology

[0002] The oil mist contains a large amount of oil and needs to be purified. The oil in the air mainly comes from the fumes produced during cooking. These fumes contain a large number of oil particles, harmful substances, and volatile organic compounds, which not only pollute the air but may also harm human health.

[0003] Oil mist separation devices are generally used to purify oil contaminants in oil mist. They are usually installed on hydraulic equipment or oil and gas pipeline equipment for pretreatment of gas containing oil contaminants before emission. They can also be used to solve workshop environmental problems containing oil mist, water mist or dust.

[0004] Chinese patent document CN 218281028 U discloses an oil mist separation device, including a fan, a filter cartridge, a filter element, and a valve. The filter cartridge contains a filter element for filtering oily impurities from the air. The filter cartridge has an air inlet and an air outlet. The air outlet is connected to the inside of the filter element via a pipe. The bottom of the filter element is fixed to the bottom of the filter cartridge by a support leg. The bottom of the filter cartridge has an annular oil drain groove for receiving oil and impurities filtered from the outside of the filter element. An oil discharge port is opened at the bottom of the annular oil drain groove for discharging oil, and an oil nozzle assembly is installed at the oil discharge port. A valve for adjusting the air intake is installed at the air inlet, and a fan is installed at the air outlet. The filter element filters and adsorbs oily impurities from the air, and the annular oil drain groove collects and centrally discharges the oily impurities.

[0005] However, the above technical solutions have the following problems: 1. During the use of the filter element, the oil stains filtered on the outer wall are easy to stick to the outer wall, block the filter holes, and thus affect long-term stable use; 2. A single oil stain separation device lacks the effect of circulating filtration and can only use one type of filter element. Once the filter element is damaged, the oil stain separation effect is lost. Utility Model Content

[0006] This utility model provides a circulating oil mist purification and separation device. By closing the inlet and outlet valves of each purification and separation device, air is blown into the purification and separation shell through a blowing device via a connecting pipe, blowing the oil on the filter element outward, facilitating its downward flow to the bottom of the purification and separation shell for discharge. The oil on the outer wall of the filter element is scraped downward by a ring plate, facilitating its downward flow to the bottom of the purification and separation shell for discharge. After the previous stage of filtration, the oily gas enters the next stage of purification and separation device, and is filtered again after the previous stage of filtration. Finally, it is discharged by an exhaust fan, resulting in good filtration effect and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a circulating oil mist purification and separation device, comprising a purification and separation shell, the purification and separation shell including a barrel-shaped shell body, a top plate and a bottom plate; a filter element is supported inside the purification and separation shell by a support base, the support base including multiple support legs and a support plate located at the top of the support legs, the filter element is fixed on the support plate, the filter element is hollow and has a filter mesh perforation around its inner and outer walls, an annular component is fixedly installed between the top of the filter element and the top plate to form an annular seal, the top plate of the purification and separation shell is provided with an air outlet pipe, the top of the air outlet pipe is connected to a first pipeline valve through a flange, a connecting pipe is connected to the air outlet pipe, the connecting pipe is equipped with a valve and connected to an external air blowing device; the bottom plate of the purification and separation shell is equipped with an air inlet pipe, the top of the air inlet pipe being higher than the bottom plate.

[0008] Preferably, the air inlet pipe is equipped with a second pipe valve.

[0009] Preferably, at least two purification separation shells are provided, and the air inlet pipe of the upper purification separation shell is connected to the air outlet pipe of the lower purification separation shell through a pipe valve.

[0010] Preferably, the air outlet pipe of the uppermost purification and separation housing is connected to an exhaust fan via the first pipe valve.

[0011] Preferably, the support plate has a downwardly inclined edge with a sloping cross-section, and there is a gap between the edge and the bottom plate of the purification and separation shell.

[0012] Preferably, the purification and separation housing is equipped with an annular plate fitted onto the outer wall of the filter element, the inner wall of the annular plate is in contact with the outer wall of the filter element, and the purification and separation housing is equipped with a lifting mechanism for driving the annular plate to rise and fall.

[0013] Preferably, the lifting mechanism includes a motor fixed to the top plate of the purification separation shell, three mounting seats equally distributed on the edge, three lead screws rotatably mounted on the three mounting seats, the ring plate being connected to the three lead screws via a ball screw pair, the three lead screws passing through the top plate and mounted with synchronous pulleys, the motor output shaft being fixedly connected to one of the lead screws via a coupling, and the three synchronous pulleys being connected via a synchronous belt.

[0014] Preferably, the top plate of the purification and separation shell is also equipped with a guide pulley, and the synchronous belt is closely connected to the guide pulley for transmission.

[0015] Preferably, the bottom plate of the purification and separation shell is equipped with an oil outlet pipe, and the oil outlet pipe is equipped with a valve.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By closing the inlet and outlet valves of each purification and separation device, and blowing air into the purification and separation housing through the connecting pipe of the air blowing device, the gas will pass through the inner cavity of the filter element and blow out from the inside to the outside through the filter holes, thereby blowing the oil on the filter element outward and facilitating its flow down to the bottom of the purification and separation housing for discharge.

[0018] 2. The lifting mechanism drives the ring plate to descend, causing the ring plate to scrape the oil stains on the outer wall of the filter element downwards, which facilitates the oil stains to flow down to the bottom of the purification and separation housing for discharge.

[0019] 3. After the previous stage of filtration, the gas enters the next stage of purification and separation equipment. The next stage of purification and separation equipment uses a filter element with a different degree of filtration than the previous stage. The same principle is used for circulation. The oily gas that has been filtered by the previous stage is filtered again and finally discharged by the exhaust fan. The filtration effect is good. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0021] Figure 2 This is a top view of the filter element, support plate, and mounting base of this utility model.

[0022] Figure 3 This is a top view schematic diagram of the synchronous pulley, synchronous belt, and guide pulley of this utility model.

[0023] In the diagram: 1. Purification and separation shell; 2. Filter element; 3. Support leg; 4. Support plate; 5. Ring component; 6. Air outlet pipe; 7. First pipeline valve; 8. Connecting pipe; 9. Air inlet pipe; 10. Second pipeline valve; 11. Exhaust fan; 12. Ring plate; 13. Motor; 14. Mounting base; 15. Lead screw; 16. Synchronous pulley; 17. Synchronous belt; 18. Guide pulley; 19. Oil outlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3This utility model provides a circulating oil mist purification and separation device, including a purification and separation shell 1, which includes a barrel-shaped shell, a top plate, and a bottom plate. A filter element 2 is supported inside the purification and separation shell 1 by a support base. The support base includes multiple support legs 3 and a support plate 4 located at the top of the support legs 3. The filter element 2 is fixed on the support plate 4. The filter element 2 is hollow and has a surrounding filter mesh that penetrates the inner and outer walls. An annular component 5 is fixedly installed between the top of the filter element 2 and the top plate to form an annular seal. The top plate of the purification and separation shell 1 is provided with an air outlet pipe 6. The top of the air outlet pipe 6 is connected to a first pipeline valve 7 via a flange. A connecting pipe 8 is connected to the air outlet pipe 6, and a valve is installed on the connecting pipe 8, which is connected to an external air blowing device. A base plate is equipped with an air inlet pipe 9, the top of which extends beyond the base plate. The air inlet pipe 9 connects to the oily exhaust port that needs purification. The discharged oily gas enters the gap between the support plate 4 and the base plate of the purification separation housing 1 through the air inlet pipe 9 and then enters the barrel-shaped shell of the purification separation housing 1. After the oily gas is filtered through the filter mesh on the outer wall of the filter element 2, it enters the filter element 2 and then exits through the air outlet pipe 6 through the top of the central cavity of the filter element 2. After the work is completed, by closing the first pipeline valve 7 and the second pipeline valve 10 of each purification separation device and opening the valve on the connecting pipe 8, air is blown into the purification separation housing 1 through the air blowing device. The gas will then be blown out from the inside to the outside through the filter holes in the inner cavity of the filter element 2, thereby blowing the oily gas on the filter element 2 outward and facilitating its flow down to the bottom of the purification separation housing 1 for discharge.

[0026] Specifically, the air inlet pipe 9 is equipped with a second pipe valve 10; in this embodiment, it is convenient to connect to the oil discharge port that needs to be purified, and it is also convenient to control the gas flow and switch on the air inlet pipe 9.

[0027] Specifically, at least two purification separation housings 1 are provided, and the air inlet pipe 9 of the upper purification separation housing 1 is connected to the air outlet pipe 6 of the lower purification separation housing 1 through a pipe valve; in this embodiment, after the upper stage filtration, the air enters the lower stage purification separation device. The lower stage purification separation device selects a filter element 2 with a different filtration degree than the upper stage, and then the same principle is used for circulation. The oily gas after the upper stage filtration is filtered again and finally discharged by the exhaust fan 11, with good filtration effect.

[0028] Specifically, the air outlet pipe 6 of the uppermost purification and separation housing 1 is connected to an exhaust fan 11 through the first pipe valve 7; in this embodiment, it is beneficial to guide the airflow of the entire oil mist purification and separation equipment, so that the oil mist can enter the filter element 2 for filtration under suction.

[0029] Specifically, the support plate 4 has a downwardly inclined edge with a sloping cross-section, and there is a gap between the edge and the bottom plate of the purification and separation housing 1; in this embodiment, it is convenient for the oil flowing down the outer wall of the filter element 2 to flow to the bottom plate of the purification and separation housing 1 for discharge.

[0030] Specifically, the purification and separation housing 1 is equipped with an annular plate 12 that is fitted onto the outer wall of the filter element 2. The inner wall of the annular plate 12 is in contact with the outer wall of the filter element 2. The purification and separation housing 1 is equipped with a lifting mechanism that drives the annular plate 12 to rise and fall. In this embodiment, the lifting mechanism drives the annular plate 12 to fall, so that the annular plate 12 scrapes the oil stains on the outer wall of the filter element 2 downwards, which facilitates the oil stains to flow down to the bottom of the purification and separation housing 1 for discharge.

[0031] Specifically, the lifting mechanism includes a motor 13 fixed to the top plate of the purification separation housing 1. Three mounting seats 14 are equally spaced along the edge, and three lead screws 15 are rotatably mounted on the three mounting seats 14. The ring plate 12 is connected to the three lead screws 15 via a ball screw pair. The three lead screws 15 pass through the top plate and are equipped with synchronous pulleys 16. The output shaft of the motor 13 is fixedly connected to one of the lead screws 15 via a coupling. The three synchronous pulleys 16 are connected via a synchronous belt 17. In this embodiment, the motor 13 drives the lead screws 15 to rotate, which in turn drives the three synchronous pulleys 16 and guide pulleys 18 that are in transmission with it to rotate via the synchronous belt 17. This, in turn, drives the three lead screws 15 to rotate, and through the transmission with the ball screw pair, drives the ring plate 12 to descend, so that the ring plate 12 scrapes the oil stains on the outer wall of the filter element 2 downwards, facilitating the downward flow of the oil stains to the bottom of the purification separation housing 1 for discharge.

[0032] Specifically, the top plate of the purification and separation housing 1 is also equipped with a guide pulley 18, and the synchronous belt 17 is closely connected to the guide pulley 18 for transmission; in this embodiment, the synchronous belt 17 can avoid the filter element 2.

[0033] Specifically, the bottom plate of the purification and separation shell 1 is equipped with an oil outlet pipe 19, and a valve is installed on the oil outlet pipe 19; in this embodiment, the oil flows down to the bottom of the purification and separation shell 1 and can be discharged through the oil outlet pipe 19.

[0034] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0035] Working principle: The oily exhaust gas is connected to the outlet of the purifying oily gas through the second pipeline valve 10. When the exhaust fan 11 is started, the discharged oily gas will enter the inlet pipe 9 through the second pipeline valve 10, then enter the cylindrical shell of the purification separation housing 1 through the gap between the support plate 4 and the bottom plate of the purification separation housing 1. After being filtered by the filter mesh on the outer wall of the filter element 2, the oily gas enters the filter element 2 and then enters the outlet pipe 6 through the top of the central cavity of the filter element 2. Then it enters the next stage of purification separation equipment. The next stage of purification separation equipment uses a filter element 2 with a different filtration degree than the previous stage, and the same principle is followed. The oily gas filtered by the previous stage is filtered again and finally discharged by the exhaust fan 11. After the operation is completed, the oily gas is discharged by shutting down each purification separation equipment. When the valves on the connecting pipe 8 are opened, the first pipeline valve 7 and the second pipeline valve 10 are blown into the purification separation housing 1 by the air blowing device. The gas will then pass through the filter element 2 and out through the filter holes, blowing the oil on the filter element 2 outwards, so that it can flow down to the bottom of the purification separation housing 1 and be discharged through the oil outlet pipe 19. During this process, the motor 13 drives the lead screw 15 to rotate, which in turn drives the three synchronous pulleys 16 and guide pulleys 18 that are connected to it to rotate via the synchronous belt 17. This drives the three lead screws 15 to rotate, and through the transmission connection with the ball screw pair, drives the ring plate 12 to descend, so that the ring plate 12 scrapes the oil on the outer wall of the filter element 2 downwards, so that the oil flows down to the bottom of the purification separation housing 1 and is discharged through the oil outlet pipe 19.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating oil mist cleaning separation apparatus comprising a cleaning separation housing (1), characterized in that, The purification separation shell (1) comprises a barrel-shaped shell body, a top plate and a bottom plate; a filter core (2) is supported in the purification separation shell (1) by a support seat, the support seat comprises a plurality of support legs (3) and a support plate (4) at the top end of the support legs (3), the filter core (2) is fixed on the support plate (4), the filter core (2) is hollow and penetrates the inner and outer walls through the four around filter mesh holes, an annular part (5) is fixed and arranged between the top end of the filter core (2) and the top plate to form annular sealing, the top plate of the purification separation shell (1) is provided with an air outlet pipe (6), the top of the air outlet pipe (6) is connected with a first pipeline valve (7) through a flange, the air outlet pipe (6) is communicated with a connecting pipe (8), the connecting pipe (8) is provided with a valve and connected with external blowing equipment; the bottom plate of the purification separation shell (1) is provided with an air inlet pipe (9), the top end of the air inlet pipe (9) is higher than the bottom plate.

2. A cyclic oil mist cleaning and separating apparatus according to claim 1, characterized in that The air inlet pipe (9) is provided with a second pipeline valve (10).

3. A cyclic oil mist cleaning and separating apparatus according to claim 1, characterized in that The purification separation shell (1) is provided with at least two, and the air inlet pipe (9) of the upper purification separation shell (1) is connected with the air outlet pipe (6) of the lower purification separation shell (1) through a pipeline valve.

4. A cyclic oil mist coalescer according to claim 1 wherein, The air outlet pipe (6) of the uppermost purification separation shell (1) is connected with an air exhaust fan (11) through the first pipeline valve (7).

5. A cyclic oil mist coalescer according to claim 1 wherein, The support plate (4) is provided with a downwardly inclined edge with a slope-shaped cross section, and there is a gap between the edge and the bottom plate of the purification separation shell (1).

6. A cyclic oil mist coalescer according to claim 5 wherein, The purification separation shell (1) is provided with a ring plate (12) sleeved on the outer wall of the filter core (2), the inner wall of the ring plate (12) abuts against the outer wall of the filter core (2), and the purification separation shell (1) is provided with a lifting mechanism for driving the ring plate (12) to lift.

7. A cyclic oil mist coalescer according to claim 6 wherein, The lifting mechanism comprises a motor (13) fixed on the top plate of the purification separation shell (1), three mounting seats (14) are equally divided on the edge, three lead screws (15) are rotatably arranged on the mounting seats (14), the ring plate (12) is drivingly connected with the three lead screws (15) through a ball screw pair, synchronous pulleys (16) are arranged on the three lead screws (15) penetrating the top plate, the output shaft of the motor (13) is fixedly connected with one of the lead screws (15) through a shaft coupling, and the three synchronous pulleys (16) are drivingly connected through a synchronous belt (17).

8. A cyclic oil mist coalescer according to claim 7 wherein, The top plate of the purification separation shell (1) is further provided with a guide pulley (18), and the synchronous belt (17) is drivingly connected with the guide pulley (18).

9. A cyclic oil mist coalescer according to claim 1 wherein, The bottom plate of the purification separation shell (1) is provided with an oil outlet pipe (19), and the oil outlet pipe (19) is provided with a valve.

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