A filtering mechanism and a filtering method for an air compressor

Abstract

The present invention discloses a filtering mechanism and a filtering method for an air compressor, relating to the technical field of air compressor filtering. A filtering mechanism for an air compressor includes a hollow mounting seat, the left and right sides of its cavity are connected to the air pipeline of the air compressor, and the front and rear sides of its cavity are connected to the cleaning system; by setting an automatic oil drainage component, when the oil in the drain pipe accumulates to a certain extent, the pressure inside the drain pipe rises to a threshold value. At this time, the pressure generated by the air pressure on the sealing plug is greater than the acting force of the tension spring, and the sealing plug moves downward. The oil in the drain pipe can be discharged into the discharge movable cover through the gap between the sealing plug and the drain pipe. During this process, the normal operation of the filter element will not be affected, and the normal operation of the device is ensured while the device drains oil.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressor filtration, and particularly relates to a filtration mechanism and a filtration method for an air compressor. Background Art

[0002] An air compressor is a device used to compress gas. Most air compressors are reciprocating pistons, rotary vanes or rotary screws. In the existing oil separation and filtration structure of the air compressor in the refrigeration unit, the main work of the air compressor is to compress air. However, when the air inside the refrigeration unit is discharged, it will carry a small amount of lubricating oil. At this time, if the air compressor directly discharges the compressed air into the condenser, it will cause oil accumulation in the condenser pipeline, directly affecting the quality of the refrigerated air. Secondly, most of the existing air compressors are equipped with oil separators, but the lubricating oil screened out by the oil separators will remain in the oil separators. After long-term use, too much oil accumulates inside the oil separators, affecting normal use.

[0003] For example, in an oil separation and filtration structure of an air compressor in a refrigeration unit with the publication number CN111482000B, a lid is provided at the top of the filter cartridge of the invention, and a collar is sleeved at the connection between the filter cartridge and the lid. A number of screw holes are evenly opened in a circular shape at the top of the outer wall of the filter cartridge, the bottom of the outer wall of the lid, and the upper and lower ends of the outer wall of the collar. Users can also disassemble the filter cartridge and the lid, unscrew the bolts in the screw holes, and remove the collar. A support pipe is sleeved inside the filter cartridge, and a number of small holes are evenly opened on the surface of the support pipe. Support rings are sleeved at both the upper and lower ends of the inner wall of the filter cartridge and located on the support pipe, and a number of support rods are fixedly connected in a circular shape between the support rings at the upper and lower ends, achieving the effect of separating gas and oil; solving the problems that when the air compressor directly discharges the compressed air into the condenser, it will cause oil accumulation in the condenser pipeline, and the screened lubricating oil will remain in the oil separator.

[0004] In the actual application of the above technical solution, the oil filtered out during the use of the technical solution will remain inside the device, and when cleaning the oil, the device needs to be shut down and disassembled, increasing the maintenance cost of the device; at the same time, since the air contains dust and the oil is prone to deterioration, it is easy to cause the filter element to be blocked, and it needs to be regularly removed and cleaned, and its regular removal and cleaning affect the normal operation of the equipment.

[0005] Therefore, it is very necessary to invent a filtration mechanism and a filtration method for an air compressor to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a filtration mechanism and a filtration method for an air compressor to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A filtering mechanism for an air compressor, comprising a hollow mounting base, the left and right sides of whose cavity are connected to the air pipeline of the air compressor, and the front and back sides of whose cavity are connected to the cleaning system; further comprising a discharge movable cover, which is detachably connected to the bottom end of the mounting base and internally provided with a partition ring and a partition plate; a sealing seat, which is mounted on the top end of the mounting base; a gas guiding seat, which is limited and slidably inserted into the interior of the mounting base; a filter element, which is threadedly connected to the bottom of the gas guiding seat, its bottom abuts against the partition ring, its peripheral side wall abuts against the partition plate, and its interior is divided into two filtering chambers by a partition plate; two air guiding grooves are formed inside the gas guiding seat, and the air guiding grooves enable the gas in the left air pipeline of the air compressor to flow unidirectionally into the two filtering chambers, and the front and back sides of the air guiding grooves are connected to the cleaning system through cleaning grooves; two automatic oil discharging components, which are arranged at the bottom of the two filtering chambers and are opened under the action of air pressure when the filtered oil reaches a preset amount to achieve oil discharging; two communication grooves, which are formed in the gas guiding seat, one end of which is communicated with the cavity surrounded by the outer wall of the filter element and the discharge movable cover, and the other end of which is communicated with the air pipeline of the air compressor docked on the right side of the mounting base; a ventilation plate, which is arranged at one end where the communication groove is communicated with the air pipeline of the air compressor on the right side; an electric control blocking component, which is arranged on the right side of the ventilation plate and is used for blocking the ventilation plate to realize the on-off of the communication groove and the air pipeline of the air compressor on the right side.

[0008] Preferably, an intelligent wireless digital display air pressure gauge, which is arranged on the top of the sealing seat and is communicated with the air guiding groove through an air pressure detection tube; a magnetic sliding sleeve, which is hermetically and slidably sleeved outside the air pressure detection tube, the inner cavity of which is communicated with the two communication grooves respectively through two docking tubes, and the top of which is connected with the inner wall of the sealing seat through a compression spring; two first holes, a second hole and a third hole are formed in the side wall of the air pressure detection tube; a ferromagnetic blocking piece, which is arranged inside the air pressure detection tube, and a partition plate is arranged inside the air pressure detection tube at the lower part of the ferromagnetic blocking piece; an electromagnetic driving part, which is arranged between the gas guiding seat and the magnetic sliding sleeve and can be used to drive the ferromagnetic blocking piece to block the air pressure detection tube and also drive the magnetic sliding sleeve to slide.

[0009] Preferably, the automatic oil discharging component includes a connection hole formed at the bottom of the filter element, an oil discharge pipe, a fixed seat, an oil passing hole, a communication pipe and a sealing plug. The oil discharge pipe is installed in the connection hole. The fixed seat is fixedly installed at the top end of the oil discharge pipe and is set as a boss-shaped structure. The oil passing hole is formed around the outer side wall of the fixed seat. The communication pipe is fixedly installed in the middle of the fixed seat, and the top end of the communication pipe extends above the connection hole. The sealing plug is installed at the bottom end of the oil discharge pipe, and the sealing plug is connected with the fixed seat through a tension spring.

[0010] Preferably, the ventilation plate includes a ventilation body, and an exhaust hole is formed in the ventilation body.

[0011] Preferably, the electric control blocking component includes a first electromagnet, which is placed on the right side of the ventilation body and corresponds to the exhaust hole, and the first electromagnet is connected to the ventilation plate through an elastic deformation part.

[0012] Preferably, the magnetic sliding sleeve includes a sliding sleeve, which is slidably connected to the air pressure detection tube; a permanent magnet, which is placed at the bottom of the sliding sleeve.

[0013] Preferably, the ferromagnetic blocking member includes a conical ring, which is placed inside the air pressure detection tube; a ferromagnetic conical projection, which is adapted to the conical ring and is connected to the inner wall of the conical ring through an elastic member.

[0014] Preferably, a blocking plate with a one-way valve is arranged at the air inlet end of the air guide groove.

[0015] Preferably, a docking hole for docking with the docking pipe is formed on the side wall of the magnetic sliding sleeve, and a connection groove for docking with the docking pipe is formed at the top of the communication groove.

[0016] The present invention also provides a filtering method for a filtering mechanism of an air compressor, including the following steps:

[0017] Step 1, equipment installation: dock the left and right sides of the mounting seat with the air compressor pipeline, and dock the front and rear sides of the mounting seat with the cleaning system;

[0018] Step 2, filtering and separation: the gas in the air compressor pipeline on the left side of the mounting seat enters the air guide seat through the mounting seat, and then enters the inside of the filter element through the two air guide grooves. After the air is filtered by the filter element, the purified air enters the outside of the filter element and re-enters the air compressor pipeline on the right side of the mounting seat through the communication groove;

[0019] Step 3, oil discharge: the oil separated inside the filter element enters the discharge movable cover through the automatic oil discharge assembly to realize automatic oil discharge;

[0020] Step 4, during normal filtering operation, by periodically controlling the electromagnetic driving part to work, the magnetic sliding sleeve slides upward, and finally the first hole is communicated with the docking pipe. At the same time, under the magnetic suction force of the electromagnetic driving part, the ferromagnetic blocking member blocks the air pressure detection tube, so that the air pressure detection tube is communicated with the two communication grooves, thereby realizing the detection of the pressure of the gas filtered by the filter element;

[0021] If the real-time detected gas pressure value of the gas filtered by the filter element is greater than the first preset value, it indicates that the filter element is damaged and leaking;

[0022] If the real-time detected gas pressure value of the gas filtered by the filter element is less than the first preset value, it indicates that the filter element is blocked;

[0023] Step Five: Control the cleaning system to clean the filter element.

[0024] Technical effects and advantages of the present invention:

[0025] 1. By setting up an automatic oil drainage component in the present invention, when the oil in the drain pipe accumulates to a certain extent, the pressure inside the drain pipe rises to the threshold value. At this time, the pressure generated by the air pressure on the sealing plug is greater than the acting force of the tension spring, and the sealing plug moves downward. The oil in the drain pipe can be discharged into the discharge movable cover through the gap between the sealing plug and the drain pipe. During this process, the normal operation of the filter element will not be affected, ensuring the normal operation of the device while realizing the oil drainage of the device.

[0026] 2. Through the mutual cooperation among the air guide seat, the plugging plate, the cleaning tank, the electric control plugging component, the air pressure detection pipe, the magnetic sliding sleeve, and the electromagnetic driving part, etc. in the present invention, by controlling the electric control plugging component and the electromagnetic driving part, the air pressure of the air filtered by the filter element is detected. If the gas pressure value of the gas filtered by the filter element detected in real time is greater than the first preset value, it indicates that the filter element is damaged and leaking air; if the gas pressure value of the gas filtered by the filter element detected in real time is less than the first preset value, it indicates that the filter element is blocked.

[0027] 3. Through the mutual cooperation among the air guide seat, the plugging plate, the cleaning tank, the electric control plugging component, the air pressure detection pipe, the magnetic sliding sleeve, and the electromagnetic driving part, etc. in the present invention, by controlling the electric control plugging component, the electromagnetic driving part, and the cleaning system, one of the filtering chambers can be cleaned while the other non-cleaning filtering chamber is still in the working state, thus realizing cleaning without stopping the machine and ensuring the normal operation of the equipment. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is an exploded view of the parts of the present invention.

[0030] Figure 3 It is a schematic diagram of the structural connection of the mounting seat, the air guide seat, and the filter element of the present invention.

[0031] Figure 4 It is a schematic cross-sectional view of the filter element of the present invention.

[0032] Figure 5 It is a schematic cross-sectional view of the automatic oil drainage component of the present invention.

[0033] Figure 6 It is a schematic cross-sectional view of the mounting seat structure of the present invention.

[0034] Figure 7 It is a schematic cross-sectional view of the structural connection of the sealing seat, the compression spring, the intelligent wireless digital display air pressure gauge, and the air pressure detection pipe of the present invention.

[0035] Figure 8 This is a schematic cross-sectional view of the air guide seat and the intelligent wireless digital display barometer of the present invention.

[0036] Figure 9 This is a schematic cross-sectional view of the air guide seat structure of the present invention.

[0037] Figure 10 For the present invention Figure 9 Another perspective view.

[0038] Figure 11 This is a schematic cross-sectional view of the discharge movable cover in the present invention.

[0039] Figure 12 This is a schematic view of the ferromagnetic plugging member structure of the present invention.

[0040] In the figure: 1, mounting seat; 101, limit slot; 102, conduit installation groove; 2, discharge movable cover; 201, discharge nozzle; 202, partition ring; 203, partition plate; 3, filter element; 4, filter cavity; 5, sealing seat; 6, air guide seat; 61, air guide groove; 611, plugging plate; 62, cleaning groove; 7, automatic oil discharge assembly; 701, connection hole; 702, oil discharge pipe; 703, fixed seat; 704, oil passing hole; 705, communicating pipe; 706, sealing plug; 707, movable plug; 708, movable column; 8, communicating groove; 9, ventilation plate; 901, ventilation body; 902, exhaust hole; 10, electric control plugging component; 1001, first electromagnet; 1002, elastic deformation part; 11, intelligent wireless digital display barometer; 12, air pressure detection pipe; 1201, first hole; 1202, second hole; 1203, third hole; 13, connection groove; 14, docking pipe; 15, magnetic sliding sleeve; 1501, docking hole; 1502, sliding sleeve; 1503, permanent magnet; 16, ferromagnetic plugging member; 1601, conical ring; 1602, ferromagnetic conical protrusion; 17, electromagnetic drive part; 1701, second electromagnet; 18, compression spring. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] The present invention provides as Figures 1 to 12A filtering mechanism of an air compressor as shown, including a control system electrically connected to each electrical component and a hollow mounting base 1, the cavity on the left and right sides of which is connected to the air compressor gas pipeline, and the cavity on the front and back sides of which is connected to the cleaning system.

[0043] Specifically, a limit slot 101 is opened at the top thereof, so that the mounting base 1 forms a hollow cavity. Four conduit mounting slots 102 communicating with the limit slot 101 and distributed in an array in the front, back, left and right directions are opened on the peripheral side wall thereof. The two conduit mounting slots 102 on the left and right are used to dock with the air compressor gas pipeline, and the two conduit mounting slots 102 on the front and back are used to dock with the cleaning system. In the present invention, by docking the conduit mounting slots 102 with the gas pipeline and the cleaning system, on the one hand, air intake and exhaust can be realized, and on the other hand, the filtering mechanism can be cleaned.

[0044] It further includes a discharge movable cover 2, which is detachably connected to the bottom end of the mounting base 1 through a connection structure, and a partition ring 202 and a partition plate 203 are arranged inside it.

[0045] Specifically, a discharge nozzle 201 is fixedly installed at the bottom end of the discharge movable cover 2; in the present invention, by providing the discharge nozzle 201, the liquid in the discharge movable cover 2 can be discharged.

[0046] A sealing seat 5, which is installed at the top end of the mounting base 1; in the present invention, by providing the sealing seat 5, the top end of the mounting base 1 can be sealed; at the same time, it is convenient for the disassembly and replacement of the air guide seat 6. Specifically, the sealing seat 5 is connected to the top end of the mounting base 1 through a fastener.

[0047] An air guide seat 6, which is limited and slidably inserted into the inside of the mounting base 1.

[0048] A filter element 3, which is threadedly connected to the bottom of the air guide seat 6, the bottom of which abuts against the partition ring 202, the peripheral side wall of which abuts against the partition plate 203, and the inside of which is divided into two filter cavities 4 by a partition plate.

[0049] Two air guide grooves 61 are opened inside the air guide seat 6. The air guide grooves 61 make the gas in the left air compressor gas pipeline flow unidirectionally into the two filter cavities 4. The front and back sides of the air guide grooves 61 are connected to the cleaning system through cleaning grooves 62; in the present invention, by providing the air guide grooves 61, air guiding inside the filter element 3 can be realized. It should be emphasized that in the present invention, a layer of breathable membrane is provided on its inner wall, which can only allow gas to pass through and cannot allow liquid to pass through.

[0050] Specifically, a plugging plate 611 with a one-way valve is arranged at the air inlet end of the air guide groove 61; in the present invention, by providing the plugging plate 611 and the one-way valve, it is used to prevent the cleaning liquid from flowing back into the conduit mounting slot 102 during cleaning.

[0051] Specifically, the cleaning tank 62 is opened on the front and rear sides of the inner wall of the air guide groove 61 and is communicated with the front and rear two conduit installation grooves 102. By providing the cleaning tank 62 in the present invention, the cleaning liquid can enter the air guide groove 61 and the filtering chamber 4, and thus the filtering chamber 4 can be cleaned.

[0052] Two automatic oil drainage components 7 are disposed at the bottoms of the two filtering chambers 4 and are opened under the action of air pressure when the filtered oil reaches a preset amount to achieve oil drainage. The design of the automatic oil drainage component 7 in the present invention can automatically drain the accumulated oil under the action of air pressure when the system liquid reaches a certain amount, avoiding the performance degradation of the filter element 3.

[0053] Specifically, the automatic oil drainage component 7 includes a connection hole 701 opened at the bottom of the filter element 3, an oil discharge pipe 702, a fixing seat 703, an oil passing hole 704, a communication pipe 705, and a sealing plug 706. The oil discharge pipe 702 is installed in the connection hole 701, the fixing seat 703 is fixedly installed at the top end of the oil discharge pipe 702, and the fixing seat 703 is provided with a boss-shaped structure. The oil passing hole 704 is circumferentially opened on the outer side wall of the fixing seat 703. The communication pipe 705 is fixedly installed in the middle of the fixing seat 703, and the top end of the communication pipe 705 extends above the connection hole 701. The sealing plug 706 is installed at the bottom end of the oil discharge pipe 702, and the sealing plug 706 is connected to the fixing seat 703 through a tension spring. The setting of the tension spring in the present invention ensures that the sealing plug 706 can seal the bottom end of the oil discharge pipe 702.

[0054] The automatic oil drainage component 7 further includes a movable plug 707 and a movable column 708. The movable plug 707 is provided with a boss-shaped structure and is fixedly installed above the sealing plug 706. The movable column 708 is fixedly installed at the top end of the movable plug 707.

[0055] Two communication grooves 8 are opened in the air guide seat 6. One end of each communication groove is communicated with the cavity formed by the outer wall of the filter element 3 and the discharge movable cover 2, and the other end is communicated with the air compressor gas pipeline docked on the right side of the mounting seat 1. By providing the communication grooves 8 in the present invention, the filtered gas is discharged.

[0056] A ventilation plate 9 is disposed at one end of the communication groove 8 communicated with the air compressor gas pipeline on the right side; it has ferromagnetism.

[0057] Specifically, the ventilation plate 9 includes a ventilation body 901, and exhaust holes 902 are opened on the ventilation body 901. By opening the exhaust holes 902 in the present invention, the filtered gas is guided to the right conduit installation groove 102.

[0058] An electric control plugging component 10 is disposed on the right side of the ventilation plate 9 to plug the ventilation plate 9 and realize the on-off of the communication groove 8 and the air compressor gas pipeline on the right side. That is, the on-off of the communication groove 8 and the right installation groove 102 is realized.

[0059] Specifically, the electric control blocking component 10 includes a first electromagnet 1001, which is placed on the right side of the ventilation body 901 and corresponds to the exhaust hole 902. The first electromagnet 1001 is connected to the ventilation plate 9 through an elastic deformation part 1002. By setting the electric control blocking component 10, when the first electromagnet 1001 is powered on, the first electromagnet 1001 will generate a magnetic suction force. Under the action of the magnetic suction force, the elastic deformation part 1002 deforms, so that the first electromagnet 1001 blocks the exhaust hole 902 on the ventilation plate 9.

[0060] In summary, when filtering the gas in the air compressor pipeline, connect the left and right conduit installation grooves 102 of the mounting seat 1 to the air compressor pipeline, and connect the front and rear conduit installation grooves 102 to the cleaning system. The mixed gas entering the air compressor pipeline is guided by the conduit installation grooves 102 into the air guide seat 6, and then enters the two filter chambers 4 of the filter element 3 through the two air guide grooves 61. After the air is filtered by the filter element 3, the pure air enters the outside of the filter element 3 and re-enters the air compressor pipeline through the communication groove 8 and the right conduit installation groove 102.

[0061] The oil and water in the air flow downward along the inner wall of the filter element 3 and enter the discharge movable cover 2 through the automatic oil discharge assembly 7 to achieve oil-gas separation of the mixed gas. The oil stored in the discharge movable cover 2 can be discharged through the discharge nozzle 201.

[0062] The oil in the mixed gas flows downward along the inner wall of the filter element 3 after being filtered by the filter element 3 and passes through the oil passing hole 704 into the oil discharge pipe 702. Since the top end of the oil discharge pipe 702 is connected to the space inside the filter element 3 through the oil passing hole 704 and the connecting pipe 705, the air pressure in the oil discharge pipe 702 is kept consistent with the air pressure inside the filter element 3. When the oil enters the oil discharge pipe 702, the internal space of the oil discharge pipe 702 decreases. Therefore, when the oil accumulates to a certain extent in the oil discharge pipe 702, the pressure inside the oil discharge pipe 702 rises to the threshold value. At this time, the pressure generated by the air pressure on the sealing plug 706 is greater than the acting force of the tension spring. At this time, the sealing plug 706 moves downward, and the oil in the oil discharge pipe 702 can be discharged into the discharge movable cover 2 through the gap between the sealing plug 706 and the oil discharge pipe 702. During this process, the normal operation of the filter element 3 will not be affected, and while the oil discharge of the device is realized, the normal operation of the device is ensured.

[0063] Based on the previous embodiment, although the above embodiment can clean the filtering mechanism, it needs to be cleaned regularly and cannot be cleaned in time according to the blockage situation. In a harsh working environment, it is still easy to get blocked before the regular cleaning time. The following improvements are made based on the previous embodiment.

[0064] The intelligent wireless digital pressure gauge 11 is placed on the top of the sealing seat 5 and is connected to the air guide groove 61 through the air pressure detection tube 12.

[0065] The magnetic sliding sleeve 15 is hermetically and slidably sleeved outside the air pressure detection tube 12. Its inner cavity is connected to the two communication grooves 8 through two butt joints 14 respectively, and its top is connected to the inner wall of the sealing seat 5 through a compression spring 18.

[0066] Specifically, the side wall of the magnetic sliding sleeve 15 is provided with a butt joint hole 1501 for butting with the butt joint 14, and the top of the communication groove 8 is provided with a connection groove 13 for butting with the butt joint 14. By setting the butt joint 14 in the present invention, the air pressure detection tube 12 can be connected to the right conduit installation groove 102 to detect the air pressure in the right conduit installation groove 102. The intelligent wireless digital pressure gauge 11 can detect the pressure of the filtered gas.

[0067] The side wall of the air pressure detection tube 12 is provided with three holes: the first hole 1201, the second hole 1202, and the third hole 1203. When the magnetic sliding sleeve 15 slides upward by a first preset distance, the two butt joint holes 1501 are communicated with the first hole 1201, which is used to detect the air pressure in the right conduit installation groove 102 when both filters 3 are connected to the right conduit installation groove 102.

[0068] When the magnetic sliding sleeve 15 slides upward by a second preset distance, one of the butt joint holes 1501 is communicated with the second hole 1202.

[0069] When the magnetic sliding sleeve 15 slides upward by a third preset distance, the other butt joint hole 1501 is communicated with the third hole 1203.

[0070] Specifically, the magnetic sliding sleeve 15 includes a sliding sleeve 1502 that is slidably connected to the air pressure detection tube 12, and a permanent magnet 1503 that is placed at the bottom of the sliding sleeve 1502. By setting the permanent magnet 1503 in the present invention, a magnetic repulsive force is generated between the magnetic sliding sleeve 15 and the electromagnetic driving part 17, causing the magnetic sliding sleeve 15 to slide upward.

[0071] The ferromagnetic plugging member 16 is placed inside the air pressure detection tube 12. A partition plate is provided inside the air pressure detection tube 12 at the lower part of the ferromagnetic plugging member 16, as Figure 7 shown.

[0072] Specifically, the ferromagnetic plugging member 16 includes a conical ring 1601 that is placed inside the air pressure detection tube 12, and a ferromagnetic conical protrusion 1602 that is adapted to the conical ring 1601 and is connected to the inner wall of the conical ring 1601 through an elastic member. Through the mutual cooperation among the conical ring 1601, the ferromagnetic conical protrusion 1602, and the elastic member, etc. in the present invention, the electromagnetic driving part 17 is used to push the ferromagnetic conical protrusion 1602 to move, realizing the plugging of the conical ring 1601.

[0073] The electromagnetic driving part 17 is disposed between the air guiding seat 6 and the magnetic sliding sleeve 15, and can be used to drive the ferromagnetic plugging member 16 to plug the air pressure detection tube 12, and can also drive the magnetic sliding sleeve 15 to slide, so as to realize the on-off of the docking hole 1501 and the first hole 1201 or the second hole 1202 or the third hole 1203.

[0074] Specifically, the electromagnetic driving part 17 includes a second electromagnet 1701. In the present invention, by controlling the energizing direction and current magnitude of the second electromagnet 1701, a magnetic repulsive force is generated between the magnetic sliding sleeve 15 and the second electromagnet 1701, so as to push the magnetic sliding sleeve 15 to slide upward, realizing the communication with the first hole 1201 or the second hole 1202 or the third hole 1203.

[0075] During the normal filtration operation, the intelligent wireless digital display air pressure gauge 11 can transmit the monitored air pressure value in real time through a wireless transmission method.

[0076] During the normal filtration operation, by timing controlling the second electromagnet 1701 to pass through a first preset current, a magnetic repulsive force is generated between the second electromagnet 1701 and the magnetic sliding sleeve 15, so that the magnetic sliding sleeve 15 slides upward, and finally the first hole 1201 is communicated with the docking pipe 14. At the same time, under the action of the magnetic attraction force of the second electromagnet 1701, the ferromagnetic conical protrusion 1602 slides downward to plug the conical ring 1601, so that the air pressure detection tube 12 is only communicated with the communication groove 8, thereby realizing the detection of the gas pressure after being filtered by the filter element 3.

[0077] By comparing the real-time detected gas pressure value after being filtered by the filter element 3 with a first preset value, if the real-time detected gas pressure value after being filtered by the filter element 3 is greater than the first preset value, it indicates that the filter element 3 is damaged and leaking air.

[0078] If the real-time detected gas pressure value after being filtered by the filter element 3 is less than the first preset value, it indicates that the filter element 3 is blocked; then by controlling the second electromagnet 1701 to pass through a second preset current, the second preset current is greater than the first preset current, so that the magnetic sliding sleeve 15 slides upward, and then the second hole 1202 is communicated with one of the docking pipes 14. At this time, the ferromagnetic conical protrusion 1602 in the air pressure detection tube 12 has plugged the conical ring 1601, and at the same time, the first electromagnet 1001 of the electric control plugging member 10 of the other docking pipe 14 is energized, so that the electric control plugging member 10 plugs the ventilation plate 9 corresponding to the other docking pipe 14, so that only a single filter chamber 4 can work, and then the gas pressure value after being filtered by the single filter chamber 4 is detected. If the real-time detected gas pressure value after being filtered by the single filter element 3 is less than the second preset value, it indicates that the filter element 3 is blocked, and then the filter element 3 is cleaned.

[0079] In a similar manner as described above, by passing a third preset current through the second electromagnet 1701, where the third preset current is greater than the second preset current, the third hole 1203 is connected to another connecting pipe 14, enabling the communication groove 8 corresponding to the filter cavity 4 to be detected to communicate with the air pressure detection pipe 12. At the same time, the electric control blocking component 10 corresponding to the non-detection filter cavity 4 is controlled to block the ventilation plate 9, thereby achieving the detection of the gas pressure value after being filtered by another filter cavity 4.

[0080] When it is necessary to clean the blocked filter cavity 4, the first electromagnet 1001 of the electric control blocking component 10 corresponding to the blocked filter cavity 4 is controlled to be energized, so that the electric control blocking component 10 blocks the ventilation plate 9 corresponding to the blocked filter cavity 4. At the same time, the second electromagnet 1701 is controlled to pass a first preset current, so that the ferromagnetic conical protrusion 1602 blocks the conical ring 1601. At this time, the air pressure detection pipe 12 is not connected to the air guide groove 61. Then, the cleaning system corresponding to the blocked filter cavity 4 is controlled to work, and liquid is supplied to the blocked filter cavity 4 to clean the inside of the blocked filter cavity 4. The cleaning liquid is discharged through the automatic oil drainage component 7, and at the same time, the filter element 3 that is not being cleaned remains in a working state; thus, cleaning without shutting down the machine is achieved.

[0081] The present invention also provides a filtering method for a filtering mechanism of an air compressor, including the following steps:

[0082] Step 1, equipment installation: Connect the left and right sides of the mounting seat 1 to the air compressor pipeline, and connect the front and rear sides of the mounting seat 1 to the cleaning system;

[0083] Step 2, filtering and separation: The gas in the air compressor pipeline on the left side of the mounting seat 1 enters the air guide seat 6 through the mounting seat 1, and then enters the inside of the filter element 3 through two air guide grooves 61. After the air is filtered by the filter element 3, the purified air enters the outside of the filter element 3 and re-enters the air compressor pipeline on the right side of the mounting seat 1 through the communication groove 8;

[0084] Step 3, oil discharge: The oil separated inside the filter element 3 enters the discharge material movable cover 2 through the automatic oil drainage component 7 to achieve automatic oil discharge;

[0085] Step 4, during normal filtering operation, by controlling the electromagnetic drive part 17 at regular intervals, the magnetic sliding sleeve 15 slides upward, and finally the first hole 1201 is connected to the connecting pipe 14. At the same time, under the magnetic suction force of the electromagnetic drive part 17, the ferromagnetic blocking part 16 blocks the air pressure detection pipe 12, and further connects the air pressure detection pipe 12 to the two communication grooves 8, thereby achieving the detection of the gas pressure after being filtered by the filter element 3;

[0086] If the gas pressure value detected in real time after being filtered by the filter element 3 is greater than the first preset value, it indicates that the filter element 3 is damaged and leaking;

[0087] If the gas pressure value after being filtered by the filter element 3 detected in real time is less than the first preset value, it indicates that the filter element 3 is blocked;

[0088] Step Five: Control the cleaning system to clean the filter element 3.

[0089] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering mechanism for an air compressor, comprising a hollow mounting base, characterized in that, The left and right sides of its cavity are connected to the air compressor gas pipeline, and the front and back sides of its cavity are connected to the cleaning system; It further includes a discharge movable cover, which is detachably connected to the bottom end of the mounting seat, and a partition ring and a partition plate are arranged inside it; A sealing seat, which is installed at the top end of the mounting seat; A gas guiding seat, which is limited and slidably inserted into the inside of the mounting seat, A filter element, which is threadedly connected to the bottom of the gas guiding seat, its bottom abuts against the partition ring, its peripheral side wall abuts against the partition plate, and its inside is divided into two filter cavities by a partition plate; Two gas guiding grooves are formed inside the gas guiding seat, and the gas guiding grooves enable the gas in the left air compressor gas pipeline to flow unidirectionally into the two filter cavities, and the front and back sides of the gas guiding grooves are connected to the cleaning system through cleaning grooves; Two automatic oil discharge components, which are placed at the bottoms of the two filter cavities, and are opened under the action of air pressure when the filtered oil reaches a preset amount to achieve oil discharge; Two communication grooves are formed in the gas guiding seat, one end of which is communicated with the cavity surrounded by the outer wall of the filter element and the discharge movable cover, and the other end is communicated with the air compressor gas pipeline docked on the right side of the mounting seat; A ventilation plate, which is placed at one end where the communication groove is communicated with the air compressor gas pipeline on the right side; An electric control blocking component, which is placed on the right side of the ventilation plate and is used to block the ventilation plate to realize the on-off of the communication groove and the air compressor gas pipeline on the right side; It further includes an intelligent wireless digital display pressure gauge, which is placed on the top of the sealing seat and is communicated with the gas guiding groove through a pressure detection tube; A magnetic sliding sleeve, which is hermetically sleeved outside the pressure detection tube, its inner cavity is communicated with the two communication grooves through two docking tubes respectively, and its top is connected to the inner wall of the sealing seat through a compression spring; Two first holes, a second hole and a third hole are formed in the side wall of the pressure detection tube; A ferromagnetic blocking piece, which is placed inside the pressure detection tube, and a partition plate is arranged inside the pressure detection tube at the lower part of the ferromagnetic blocking piece; An electromagnetic driving part, which is placed between the gas guiding seat and the magnetic sliding sleeve, can be used to drive the ferromagnetic blocking piece to block the pressure detection tube, and can also drive the magnetic sliding sleeve to slide.

2. The filtering mechanism of an air compressor according to claim 1, characterized in that, The automatic oil discharge component includes a connection hole formed at the bottom of the filter element, an oil discharge pipe, a fixing seat, an oil passing hole, a communication pipe and a sealing plug. The oil discharge pipe is installed in the connection hole. The fixing seat is fixedly installed at the top end of the oil discharge pipe, and the fixing seat is set as a convex platform structure. The oil passing hole is formed around the outer side wall of the fixing seat. The communication pipe is fixedly installed in the middle of the fixing seat, and the top end of the communication pipe extends above the connection hole. The sealing plug is installed at the bottom end of the oil discharge pipe, and the sealing plug is connected to the fixing seat through a tension spring.

3. The filtering mechanism of an air compressor according to claim 1, characterized in that, The ventilation plate includes a ventilation body, and an exhaust hole is formed on the ventilation body.

4. The filtering mechanism of an air compressor according to claim 3, characterized in that, The electric control blocking component includes a first electromagnet, which is placed on the right side of the ventilation body and corresponds to the exhaust hole, and the first electromagnet is connected to the ventilation plate through an elastic deformation part.

5. The filtering mechanism of an air compressor according to claim 1, characterized in that, The magnetic sliding sleeve includes a sliding sleeve, which is slidably connected to the pressure detection tube; A permanent magnet, which is placed at the bottom of the sliding sleeve.

6. The filtering mechanism of an air compressor according to claim 1, characterized in that, The ferromagnetic blocking piece includes a conical ring, which is placed inside the pressure detection tube; A ferromagnetic conical protruding piece, which is adapted to the conical ring, and is connected to the inner wall of the conical ring through an elastic piece.

7. The filtering mechanism of an air compressor according to claim 1, characterized in that, A plugging plate with a one-way valve is arranged inside the air inlet end of the air guide groove.

8. The filtering mechanism of an air compressor according to claim 1, characterized in that, A docking hole for docking with the docking pipe is arranged on the side wall of the magnetic sliding sleeve, and a connection groove for docking with the docking pipe is arranged at the top of the communication groove.

9. A filtering method for a filtering mechanism of an air compressor, which uses the filtering mechanism according to any one of claims 2-8 for filtering, characterized in that, It includes the following steps: Step 1, equipment installation: Connect the left and right sides of the mounting seat to the air compressor pipeline, and connect the front and rear sides of the mounting seat to the cleaning system. Step 2, filtration and separation: The gas in the air compressor pipeline on the left side of the mounting seat enters the air guide seat through the mounting seat, then enters the inside of the filter element through the two air guide grooves. After the air is filtered by the filter element, the purified air enters the outside of the filter element and re-enters the air compressor pipeline on the right side of the mounting seat through the communication groove. Step 3, oil discharge: The oil separated inside the filter element enters the discharge movable cover through the automatic oil discharge assembly to realize automatic oil discharge. Step 4, during the normal filtration operation, by periodically controlling the electromagnetic driving part to work, the magnetic sliding sleeve slides upward, finally making the first hole communicate with the docking pipe. At the same time, under the magnetic attraction of the electromagnetic driving part, the ferromagnetic plugging piece plugs the air pressure detection pipe, so that the air pressure detection pipe communicates with the two communication grooves, thereby realizing the detection of the gas pressure after being filtered by the filter element. If the gas pressure value after being filtered by the filter element detected in real time is greater than the first preset value, it indicates that the filter element is damaged and leaking. If the gas pressure value after being filtered by the filter element detected in real time is less than the first preset value, it indicates that the filter element is blocked. Step 5, control the cleaning system to clean the filter element.

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