An electric oil mist collector for screw air compressor

Abstract

The invention relates to the technical field of oil mist recovery, and specifically discloses an electric oil mist recoverer for a screw air compressor, comprising an outer shell, wherein the bottom of the outer shell is evenly fixedly connected with four legs, the top of the outer shell is fixedly connected with a volute, the interior of the volute is fixedly connected with an air inlet pipe, the interior of the outer shell and the volute is provided with a conversion component, and the bottom of the outer shell is provided with a recovery device; through a centrifugal impeller and an axial flow impeller and blades in the two, the kinetic energy of the air and oil mist mixture passing through the interior is reduced, so that the air and oil mist mixture can pass through at a low speed, so that the oil mist particles and particulate matter are charged under the high-voltage electric field between two discharge electrode plates, and then fall on the oil accumulation electrode plate to capture the charged particles, so as to avoid the high-speed movement of the oil mist particles and particulate matter affecting the capture and recovery, and finally the rotating centrifugal impeller and the axial flow impeller can drive the purified air to continue to flow, so as to realize the recycling after the kinetic energy reduction.

Description

Technical Field

[0001] The invention relates to the technical field of oil mist recovery, in particular to an electric oil mist recoverer for a screw air compressor. Background Art

[0002] Screw air compressor is a widely used device for providing compressed air. Its working principle is based on the mutual meshing operation of the male and female screw rotors. When the motor drives the male screw to rotate, it will drive the female screw to rotate synchronously. During the rotation of the screw, the air enclosed between the screw teeth and the housing is gradually compressed. In order to reduce the wear between the screws and between the screw and the housing, lubricating oil needs to be injected to achieve the purpose of lubrication and sealing. However, under the high temperature and high pressure conditions in the compression chamber, a part of the lubricating oil will be atomized into tiny oil droplets and mixed with the compressed air to form oil mist. In order to prevent the direct discharge of oil mist and thus pollute the environment, an electric oil mist collector is needed to recover the oil mist.

[0003] The mixture of compressed air and oil mist discharged from the exhaust port of the screw air compressor will have many adverse effects because of its certain flow rate. The high-speed flowing mixture will cause strong impact and continuous wear on the internal components of the electric oil mist collector, greatly shortening the service life of the components. Premature damage to the components not only increases the cost of equipment maintenance and replacement, but may also cause recovery device operation failure, affecting the overall work efficiency. This flow rate will cause the residence time of the oil mist in the recovery device to be significantly shortened. The oil mist cannot fully contact and act with the filtering, adsorption and other processing components in the recovery device, making it more difficult for the oil mist to be effectively recovered and treated, directly reducing the efficiency and effect of oil mist recovery, and increasing the possibility of oil mist being directly discharged into the environment without sufficient treatment, thereby causing serious pollution to the environment, destroying the ecological balance, and threatening human health. In addition, too fast a flow rate may also cause uneven pressure distribution inside the recovery device, affecting the stability and reliability of the equipment.

[0004] Therefore, it is necessary to provide an electric oil mist collector for a screw air compressor to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide an electric oil mist collector for a screw air compressor, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An electric oil mist collector for a screw air compressor comprises a shell, the bottom of the shell is evenly and fixedly connected with four legs, the top of the shell is fixedly connected with a volute, the interior of the volute is fixedly connected with an air intake pipe, the shell and the interior of the volute are provided with a conversion component, and the bottom of the shell is provided with a recovery device;

[0008] The conversion component includes a centrifugal impeller rotatably connected to the volute, the bottom of the centrifugal impeller is rotatably connected to a connecting pipe, the bottom of the connecting pipe is rotatably connected to an axial flow impeller 1, the bottom of the axial flow impeller 1 is rotatably connected to a supporting pipe, and the inner walls of the centrifugal impeller and the axial flow impeller 1 are both fixedly connected to a plurality of blades distributed in a ring array;

[0009] The recovery component includes a material discharge sleeve fixedly connected to the inner wall of the bottom end of the shell, the bottom of the support tube is rotatably connected to the upper plate, a gap is formed between the material discharge sleeve and the upper plate, the inside of the support tube is symmetrically fixedly connected to the discharge electrode plate, the inside of the shell is symmetrically fixedly connected to the mounting seat, the adjacent sides of the two mounting seats are fixedly connected to the mounting plate, and the adjacent ends of the two mounting plates penetrate the material discharge sleeve and are fixedly connected to the oil-accumulated electrode plate;

[0010] A discharge valve is fixedly connected to the bottom of the outer shell, an input end of the discharge valve passes through the outer shell and is fixedly connected to the discharge sleeve, and a motor is fixedly installed on the upper surface of the volute.

[0011] As a further improvement of the above scheme, the upper surface of the centrifugal impeller is fixedly connected with a toothed disk, the output end of the motor is fixedly connected with an axial flow impeller 2, the outer side of the axial flow impeller 2 is fixedly connected with a gear 1, and the gear 1 passes through the top of the volute and is meshed with the toothed disk.

[0012] As a further improvement of the above solution, a mounting tube is fixedly connected to the adjacent sides of the two mounting seats, the mounting tube is fixedly connected to the discharge electrode plate, and the mounting plate is fixedly connected to the mounting seat.

[0013] As a further improvement of the above solution, a fixing rod is symmetrically fixedly connected to the lower surface of the axial flow impeller 1, a supporting seat is symmetrically fixedly connected to the upper surface of the upper plate, and a spring is symmetrically fixedly connected between the axial flow impeller 1 and the supporting seat.

[0014] As a further improvement of the above scheme, the interior of the upper plate is symmetrically rotatably connected with a sliding sleeve, both ends of the sliding sleeve are fixedly connected with gear 2, the inner side of the lower sleeve is rotatably connected with a cleaning rod, the top of the cleaning rod and the bottom of the support tube are fixedly connected with a gear ring, and gear 2 is meshingly connected with the gear ring.

[0015] As a further improvement of the above solution, a cylindrical cam 2 is fixedly connected to the outer side of the upper plate, and a cylindrical cam 1 is fixedly connected to the outer side of the lower sleeve, and the cylindrical cam 1 and the cylindrical cam 2 are meshed with each other.

[0016] As a further improvement of the above solution, mounting grooves are provided on both sides of the support tube, the discharge electrode plates are fixedly connected in the mounting grooves of the support tube, and the adjacent sides of the two discharge electrode plates fit closely to the inner wall of the support tube.

[0017] As a further improvement of the above solution, a guide sleeve is fixedly connected to the top of the outer shell, and the air inlet end of the volute is fit and snugly matched with the top of the guide sleeve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Through the centrifugal impeller and the axial flow impeller 1, as well as the numerous blades inside the two, the kinetic energy of the air and oil mist mixture passing through the inside can be effectively reduced, so that the air and oil mist mixture passes through the support tube at a low speed, causing the oil mist particles and particulate matter to be charged under the influence of the high-voltage electric field between the two discharge electrode plates, and then fall onto the oil accumulation electrode plate under the push of gravity, and the oil accumulation electrode plate is energized to further capture the charged particles, avoiding the oil mist particles and particulate matter from affecting the capture and recovery effect due to high-speed movement. Finally, with the help of the rotating centrifugal impeller and the axial flow impeller 1, the flow of purified air can be accelerated, thereby achieving recycling after kinetic energy reduction, further improving resource utilization, reducing energy consumption, and also reducing potential pollution to the environment.

[0020] 2. Through the mutual engagement of cylindrical cam 1 and cylindrical cam 2, intermittent sealing between the upper plate and the lower material sleeve can be achieved. During the sealing period, the flow speed of the oil mist particles can be slowed down, so that they can be more thoroughly adsorbed on the surface of the oil-accumulated electrode plate and the inner wall between the upper plate and the lower material sleeve. In addition, the rotating cleaning rod can scrape off the oil mist on the surface of the oil-accumulated electrode plate and the inner wall between the upper plate and the lower material sleeve, causing it to flow into the bottom of the lower material sleeve, ensuring the stable operation of the entire device and efficient recovery effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the centrifugal impeller of the present invention;

[0025] Figure 4 It is a schematic diagram of the internal structure of the centrifugal impeller of the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of the volute of the present invention;

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0028] Figure 7 It is a schematic diagram of the bottom structure of the housing of the present invention;

[0029] Figure 8 It is a schematic diagram of the internal structure of the blanking sleeve of the present invention;

[0030] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at point B in the middle.

[0031] In the figure: 1. outer shell; 2. outriggers; 3. volute;

[0032] 401, air intake pipe; 402, connecting pipe; 403, supporting pipe;

[0033] 5. Motor;

[0034] The conversion assembly includes: 601, centrifugal impeller; 602, axial flow impeller 1; 603, guide sleeve; 604, toothed disc; 605, blade; 606, gear 1; 607, axial flow impeller 2;

[0035] The recovery components include: 701, mounting seat; 702, upper plate; 703, cylindrical cam 1; 704, cylindrical cam 2; 705, feeding sleeve; 706, mounting tube; 707, discharge electrode plate; 708, oil accumulation electrode plate; 709, fixing rod; 710, mounting plate; 711, cleaning rod; 712, gear ring; 713, sliding sleeve; 714, gear 2; 715, spring; 716, support seat;

[0036] 8. Unloading valve. DETAILED DESCRIPTION

[0037] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 9 As shown, the present invention provides an embodiment:

[0039] An electric oil mist collector for a screw air compressor comprises an outer shell 1, four legs 2 are evenly and fixedly connected to the bottom of the outer shell 1, a volute 3 is fixedly connected to the top of the outer shell 1, an air intake pipe 401 is fixedly connected to the inside of the volute 3, conversion components are arranged inside the outer shell 1 and the volute 3, a recovery device is arranged at the bottom of the outer shell 1, a discharge valve 8 is fixedly connected to the bottom of the outer shell 1, and a motor 5 is fixedly installed on the upper surface of the volute 3.

[0040] The support legs 2 can be used to support the outer shell 1, so that the unloading valve 8 can be installed at the bottom of the outer shell 1 for unloading. The volute 3 can seal the top of the outer shell 1 and accelerate the discharge of purified air. The air inlet pipe 401 is connected to the exhaust port of the screw air compressor, so that the compressed air and oil mist mixture discharged from the exhaust port enters the device for oil mist treatment. The kinetic energy of the air and oil mist mixture when it just enters can be reduced by the conversion component, so as to reduce the flow rate of the air and oil mist mixture, thereby reducing its impact on internal components and increasing the time it passes inside to ensure the effect of oil mist recovery.

[0041] The conversion component includes a centrifugal impeller 601 rotatably connected to the volute 3, the bottom of the centrifugal impeller 601 is rotatably connected to the connecting pipe 402, the bottom of the connecting pipe 402 is rotatably connected to the axial flow impeller 1 602, the bottom of the axial flow impeller 1 602 is rotatably connected to the support tube 403, the inner walls of the centrifugal impeller 601 and the axial flow impeller 1 602 are fixedly connected with a plurality of blades 605 distributed in a circular array, the upper surface of the centrifugal impeller 601 is fixedly connected with a toothed disk 604, the output end of the motor 5 is fixedly connected with an axial flow impeller 2 607, the outer side of the axial flow impeller 2 607 is fixedly connected with a gear 1 606, the gear 1 606 passes through the top of the volute 3 and is meshed with the toothed disk 604, the top of the outer shell 1 is fixedly connected with a guide sleeve 603, and the air inlet end of the volute 3 is adapted to fit the top of the guide sleeve 603.

[0042] The air and oil mist mixture passes through the inside of the centrifugal impeller 601, pushing the multiple blades 605 inside the centrifugal impeller 601 to rotate. The blades 605 drive the centrifugal impeller 601 fixedly connected to the outside to rotate, which can achieve the reduction of the kinetic energy of the air and oil mist mixture passing through the inside. Similarly, the axial flow impeller 1 602 further achieves the reduction of the kinetic energy of the air and oil mist mixture, and the rotating centrifugal impeller 601 and the axial flow impeller 1 602 can pressurize and speed up the purified air. The axial flow impeller 1 602 can be connected to the centrifugal impeller 60 through the connecting pipe 402. 1 is rotatably installed at the bottom, and the communication among the air inlet pipe 401, the connecting pipe 402, the supporting pipe 403, the centrifugal impeller 601 and the axial flow impeller 1 602 is realized, so as to ensure that the air and oil mist mixture can be accurately moved to the bottom of the housing 1 for recovery. The axial flow impeller 2 607 driven by the motor 5 can drive the wind to pass through the air inlet pipe 401, and assist in cooling the air and oil mist mixture in the air inlet pipe 401. Through the meshing of the gear 1 606 and the toothed disc 604, the boost and speed of the purified air can be further improved, and the loss between the kinetic energy conversion can be compensated.

[0043] The recovery component includes a material discharge sleeve 705 fixedly connected to the inner wall of the bottom end of the shell 1, the bottom of the support tube 403 is rotatably connected to the upper plate 702, a gap is formed between the mounting seat 701 and the upper plate 702, the inside of the support tube 403 is symmetrically fixedly connected to the discharge electrode plate 707, the inside of the shell 1 is symmetrically fixedly connected to the mounting seat 701, the adjacent sides of the two mounting seats 701 are fixedly connected to the mounting plate 710, the adjacent ends of the two mounting plates 710 pass through the material discharge sleeve 705 and are fixedly connected to the oil accumulation electrode plate 708, the input end of the material discharge valve 8 passes through the shell 1 and is fixedly connected to the material discharge sleeve 705, the adjacent sides of the two mounting seats 701 are fixedly connected to the mounting pipe 706, the mounting pipe 706 is fixedly connected to the discharge electrode plate 707, the mounting plate 710 is fixedly connected to the mounting seat 701, the lower surface of the axial flow impeller 602 is symmetrically fixedly connected to the fixing rod 709, and the upper plate 7 The upper surface of 02 is symmetrically fixedly connected with a support seat 716, and a spring 715 is symmetrically fixedly connected between the axial flow impeller 1 602 and the support seat 716. The interior of the upper disk 702 is symmetrically rotatably connected with a sleeve 713, and both ends of the sleeve 713 are fixedly connected with a gear 2 714. The inner side of the discharge sleeve 705 is rotatably connected with a cleaning rod 711, and the top of the cleaning rod 711 and the bottom of the support tube 403 are fixedly connected with a gear ring 712, and the gear 2 714 is meshed with the gear ring 712. The outer side of the upper disk 702 is fixedly connected with a cylindrical cam 2 704, and the outer side of the discharge sleeve 705 is fixedly connected with a cylindrical cam 1 703. The cylindrical cam 1 703 and the cylindrical cam 2 704 are meshed with each other. Installation grooves are opened on both sides of the support tube 403, and the discharge electrode plate 707 is fixedly connected in the installation groove of the support tube 403. The side where the two discharge electrode plates 707 are close to each other fits well with the inner wall of the support tube 403.

[0044] The recovered oil mist can be guided and collected through the lower material sleeve 705, and an intermittently sealed space is formed by the cooperation of the upper plate 702 and the lower material sleeve 705, ensuring that the oil mist particles are decelerated during the sealing period to be adsorbed on the inner wall of the space and the oil accumulation electrode plate 708. A high-voltage electric field can be formed through the discharge electrode plate 707 to facilitate the passing oil mist particles to be charged, and the charged oil mist particles can be adsorbed by the oil accumulation electrode plate 708. The support and installation of the oil accumulation electrode plate 708 can be achieved through the mounting plate 710, and the support of the discharge electrode plate 707 can be achieved through the mounting tube 706. The cylindrical cam 1 703 and the mounting tube 706 can be installed through the mounting seat 701, and a space for electrification of the discharge electrode plate 707 and the mounting plate 710 can be provided. The sliding sleeve 713 can realize the synchronous rotation of the two gears 2 714 thereon, and the meshing of the gear 2 714 with the gear ring 712 makes the rotation of the upper plate 702 drive the cleaning rod 711 to rotate to achieve cleaning of the intermittently sealed space.

[0045] In combination with the above preferred embodiments, the working principle of the present invention is as follows:

[0046] Speed ​​reduction of the air and oil mist mixture: the air and oil mist mixture discharged from the exhaust port passes through the centrifugal impeller 601, the connecting pipe 402, the axial flow impeller 1 602 and the support pipe 403 in sequence from the air inlet pipe 401. When passing through the centrifugal impeller 601 and the axial flow impeller 1 602, it will contact with the multiple blades 605 on the inside and push the blades 605 to rotate. The rotating blades 605 respectively drive the centrifugal impeller 601 and the axial flow impeller 1 602 to rotate, thereby reducing kinetic energy and ensuring that the flow rate of the air and oil mist mixture entering the support pipe 403 is reduced to a minimum.

[0047] Before the mixture of air and oil mist enters the air inlet pipe 401, the operator starts the motor 5 through the external controller, so that the output shaft of the motor 5 drives the axial flow impeller 2 607 and the gear 1 606 to rotate. The rotation of the axial flow impeller 2 607 can drive the air outside the air inlet pipe 401 to flow, playing a role in assisting heat dissipation.

[0048] Recovery of oil mist in the air: The operator starts the discharge electrode plate 707 and the oil accumulation electrode plate 708 through an external controller. The start of the two discharge electrode plates 707 fills the inner side of the support tube 403 with a positive pressure electric field. When the air and oil mist mixture passes through the inner side of the support tube 403, the oil mist particles and particulate matter will be charged and fall into the material discharge sleeve 705, and will be initially recovered under the electrostatic adsorption of the oil accumulation electrode plate 708 in the material discharge sleeve 705. The oil mist particles that continue to move along the gap between the material discharge sleeve 705 and the upper plate 702 will be further adsorbed and recovered;

[0049] The rotation of the centrifugal impeller 601 can drive the upper plate 702 to rotate through the sliding connection between the fixed rod 709 and the sliding sleeve 713, and the rotating upper plate 702 will drive the cylindrical cam 704 to rotate. Due to the mutual engagement between the cylindrical cam 703 and the cylindrical cam 704, the rotation of the upper plate 702 will intermittently move upward. During the upward movement of the upper plate 702, the spring 715 is repeatedly compressed by the support seat 716 to achieve the storage of elastic potential energy, so that the upper plate 702 can be reset faster and more stably during the resetting process, and the elasticity of the spring 715 ensures that when the space between the upper plate 702 and the lower material sleeve 705 is sealed, it cannot be broken by the negative pressure generated by the centrifugal impeller 601 and the axial flow impeller 602, and the internal air and oil mist mixture can be recovered at a low speed.

[0050] Treatment after oil mist adsorption: When the upper plate 702 rotates, it will drive the gear 2 714 at the top to roll on the outside of the gear ring 712 at the top, and the rolling gear 2 714 drives the gear 2 714 at the bottom to rotate synchronously through the sliding sleeve 713. Since the cleaning rod 711 is meshed with the gear 2 714 at the bottom through the gear ring 712 at the bottom, the cleaning rod 711 will rotate at the top of the discharge sleeve 705 to achieve internal cleaning, ensuring that the oil mist particles adsorbed on the surface of the oil-accumulated electrode plate 708 and the oil mist particles on the upper surface of the discharge sleeve 705 can fall into the bottom of the discharge sleeve 705, and finally be discharged through the discharge valve 8;

[0051] Exhaust of purified air: After being discharged from between the mounting seat 701 and the upper plate 702, the purified air is accelerated by the rotation of the axial flow impeller 602, and enters the volute 3 along the guide sleeve 603, and then further accelerated and pressurized under the centrifugal drive of the centrifugal impeller 601 in the volute 3, thereby realizing the conversion and utilization of kinetic energy;

[0052] The meshing connection between the gear 1 606 and the toothed disc 604 can further drive the centrifugal impeller 601 to rotate, thereby reducing the impact of kinetic energy loss during the conversion process.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric oil mist collector for a screw air compressor, comprising a housing (1), the bottom of the housing (1) being evenly and fixedly connected with four legs (2), characterized in that: The top of the outer shell (1) is fixedly connected to a volute (3), the interior of the volute (3) is fixedly connected to an air intake pipe (401), the interiors of the outer shell (1) and the volute (3) are provided with conversion components, and the bottom of the outer shell (1) is provided with a recovery device; The conversion component comprises a centrifugal impeller (601) rotatably connected to the volute (3); the bottom of the centrifugal impeller (601) is rotatably connected to a connecting pipe (402); the bottom of the connecting pipe (402) is rotatably connected to an axial flow impeller (602); the bottom of the axial flow impeller (602) is rotatably connected to a support pipe (403); the inner walls of the centrifugal impeller (601) and the axial flow impeller (602) are both fixedly connected to a plurality of blades (605) distributed in a ring array; The recovery component comprises a material discharge sleeve (705) fixedly connected to the inner wall of the bottom end of the shell (1); the bottom of the support tube (403) is rotatably connected to an upper plate (702); a gap is formed between the material discharge sleeve (705) and the upper plate (702); the interior of the support tube (403) is symmetrically fixedly connected to a discharge electrode plate (707); the interior of the shell (1) is symmetrically fixedly connected to a mounting seat (701); the adjacent sides of the two mounting seats (701) are fixedly connected to a mounting plate (710); the adjacent ends of the two mounting plates (710) penetrate the material discharge sleeve (705) and are fixedly connected to an oil-accumulated electrode plate (708); A discharge valve (8) is fixedly connected to the bottom of the outer shell (1); an input end of the discharge valve (8) passes through the outer shell (1) and is fixedly connected to the discharge sleeve (705); and a motor (5) is fixedly mounted on the upper surface of the volute (3).

2. The electric oil mist collector for a screw air compressor according to claim 1, characterized in that: The upper surface of the centrifugal impeller (601) is fixedly connected to a toothed disc (604), the output end of the motor (5) is fixedly connected to an axial flow impeller 2 (607), the outer side of the axial flow impeller 2 (607) is fixedly connected to a gear 1 (606), and the gear 1 (606) passes through the top of the volute (3) and is meshed with the toothed disc (604).

3. The electric oil mist collector for a screw air compressor according to claim 2, characterized in that: The two mounting seats (701) are fixedly connected to a mounting tube (706) on one side thereof, the mounting tube (706) is fixedly connected to the discharge electrode plate (707), and the mounting plate (710) is fixedly connected to the mounting seat (701).

4. The electric oil mist collector for a screw air compressor according to claim 2, characterized in that: The lower surface of the axial flow impeller 1 (602) is symmetrically fixedly connected with a fixing rod (709), the upper surface of the upper plate (702) is symmetrically fixedly connected with a supporting seat (716), and a spring (715) is symmetrically fixedly connected between the axial flow impeller 1 (602) and the supporting seat (716).

5. The electric oil mist collector for a screw air compressor according to claim 2, characterized in that: The upper plate (702) is internally symmetrically rotatably connected with a sleeve (713), both ends of the sleeve (713) are fixedly connected with a gear 2 (714), the inner side of the lower sleeve (705) is rotatably connected with a cleaning rod (711), the top of the cleaning rod (711) and the bottom of the support tube (403) are fixedly connected with a gear ring (712), and the gear 2 (714) is meshingly connected with the gear ring (712).

6. The electric oil mist collector for a screw air compressor according to claim 2, characterized in that: The outer side of the upper plate (702) is fixedly connected with a cylindrical cam 2 (704), and the outer side of the lower sleeve (705) is fixedly connected with a cylindrical cam 1 (703), and the cylindrical cam 1 (703) and the cylindrical cam 2 (704) are meshed with each other.

7. The electric oil mist collector for a screw air compressor according to claim 3, characterized in that: The support tube (403) is provided with mounting grooves on both sides, and the discharge electrode plates (707) are fixedly connected in the mounting grooves of the support tube (403), and the adjacent sides of the two discharge electrode plates (707) are adapted to fit the inner wall of the support tube (403).

8. The electric oil mist collector for a screw air compressor according to claim 3, characterized in that: A guide sleeve (603) is fixedly connected to the top of the outer shell (1), and the air inlet end of the volute (3) fits snugly with the top of the guide sleeve (603).

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