A screw air compressor

Abstract

The utility model discloses a screw air compressor belongs to screw air compressor technical field, the air compressor body is provided with input and output respectively, the air filter assembly is connected with the input of air compressor body correspondence, the axle core place of air filter assembly inboard is rotatably connected with the blow -off assembly, in the utility model, the heat of air carrying is utilized to heat drying air filter board, and the reverse blow -washing is through changing the airflow direction, utilizes the high pressure air to blow -sweeps from air filter board inboard to the outside, can effectively remove the stubborn particulate matter of adhering in the inside and micropore of air filter board, avoids the dead angle that the traditional positive blowing possibly left, and the air after heating can accelerate the evaporation of air filter board surface and internal residual moisture, reduces the particle adhesion because of damp, further promotes the cleaning effect, after thoroughly removing the blockage in the air filter board pore, the air flow resistance is reduced significantly, and the air compressor body admission efficiency is promoted, is helpful to maintaining system stable operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of screw air compressors, and particularly relates to a screw air compressor. BACKGROUND

[0002] A screw air compressor is a positive displacement compression device widely used in industrial fields, and its core component is a pair of intermeshing screw rotors, which realizes air suction, compression and discharge through rotation of the rotors. The working process of the screw air compressor mainly includes four stages: air suction, compression, air discharge and cooling and lubrication.

[0003] In the air suction stage, air enters the compression chamber through an air inlet valve, and is brought into the rotor tooth groove with the rotation of the screw rotors.

[0004] In the compression stage, the two screw rotors continuously mesh and rotate, and the tooth groove volume gradually decreases, so that the air is compressed and the pressure gradually increases.

[0005] In the air discharge stage, when the air is compressed to a set pressure, an air discharge valve is opened, and high-pressure air enters a gas storage tank or is directly delivered to a gas using device.

[0006] In the cooling and lubrication stage, lubricating oil is sprayed into the compression chamber to play a role of cooling, lubrication and sealing, and at the same time, the exhaust temperature is reduced and the energy efficiency is improved.

[0007] Some invention patents in the technical field of screw air compressors are disclosed in the prior art. The invention patent with the publication number CN117469169B discloses an anti-vibration screw air compressor, which comprises a machine box, a control cabinet, a machine base, an oil-gas separator and a cooler are fixed inside the machine box, an air inlet pipe is arranged on the machine base, an air discharge pipe is connected between the oil-gas separator and the cooler, and a flow sensor, an air inlet compensation assembly, a cleaning assembly and a double-filter element assembly are further arranged. Through the arrangement of the flow sensor, the air inlet compensation assembly, the cleaning assembly and the double-filter element assembly, the air inlet flow can be monitored, and the vibration phenomenon caused by the decrease of the air inlet flow can be effectively prevented through fan compensation in the process of gradual blockage of the filter element, thereby protecting the air compressor and improving the service life of the air compressor. The air inlet compensation assembly can also adjust the compensation efficiency according to the blockage degree, so that the air inlet flow after compensation is always stable at a standard value, has high applicability, ensures stable operation of the air compressor, and has high output quality and high output efficiency.

[0008] The screw air compressor in the high-efficiency and energy-saving industry still has some deficiencies in the use process, although the effective filtration of air is realized, the screw air compressor operation generates suction force on air, under the action of the suction force, air penetrates the filter layer and flows into the screw air compressor, the suction force will interfere with the back flushing cleaning, thereby limiting the cleaning effect to a certain extent, and the influence of moisture in air on the screw air compressor is not fully considered, high moisture in air will cause high humidity of compressed air, and low quality of compressed gas, since the filter element of the screw air compressor adopts a multi-layer filtering structure with high density, the moisture in air will increase the adhesion of impurities, thereby affecting the cleaning effect.

[0009] Based on this, the screw air compressor is designed to solve the above problems. SUMMARY

[0010] The screw air compressor is proposed to solve the problems that the screw air compressor in the high-efficiency and energy-saving industry still has some deficiencies in the use process, although the effective filtration of air is realized, the influence of moisture in air on the screw air compressor is not fully considered, high moisture in air will cause high humidity of compressed air, and low quality of compressed gas, since the filter element of the screw air compressor adopts a multi-layer filtering structure with high density, the moisture in air will increase the adhesion of impurities, thereby affecting the cleaning effect.

[0011] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0012] A screw air compressor, comprising an air compressor body, an input port and an output port are respectively arranged on the air compressor body, an air filter assembly is connected to the air compressor body corresponding to the input port, a blowdown assembly is rotationally connected to the axis of the inner side of the air filter assembly, a cleaning assembly is arranged on the inner wall of the air filter assembly and is connected with the blowdown assembly to rotate synchronously;

[0013] A cooling assembly is wound and connected to the air compressor body, air heated by the cooling assembly enters the cleaning assembly for cleaning and drying the air filter assembly.

[0014] Further description of the above technical scheme:

[0015] The cooling assembly comprises a cooling pipe wound and connected to the outer surface of the air compressor body, an input pipe is communicated with one end of the cooling pipe, and an output pipe is communicated with the other end of the cooling pipe.

[0016] Further description of the above technical scheme:

[0017] The air filter assembly comprises an air filter tank connected to the corresponding input port position of the air compressor body, a support ring is clamped to the bottom of the inner side of the air filter tank, an air filter element is insertedly connected to the inner side of the support ring, a tank cover for compressing the air filter element is installed in the top port of the air filter tank, and a plurality of air inlets in an annular array are formed in the tank cover.

[0018] As a further description of the above technical solution:

[0019] The air filter element comprises a cylinder body insertedly connected to the inner side of the support ring, a second sealing ring connected to the bottom of the tank cover is arranged above the cylinder body, and the tank cover is compressed through the second sealing ring;

[0020] A first sealing ring is sleeved to the bottom end of the cylinder body, the cylinder body is sealingly connected with the support ring through the first sealing ring, a plurality of grid holes in an annular array are formed in the circumferential surface of the cylinder body, and an air filter plate is clamped in each of the plurality of grid holes.

[0021] As a further description of the above technical solution:

[0022] The blowdown assembly comprises a adapter shaft rotationally connected to the top axial center of the tank cover, a motor is installed on the top of the tank cover, the output shaft of the motor is connected with the end of the adapter shaft, a bridging ring is sleeved to the top end of the cylinder body, the tank cover is sealingly connected with the bridging ring through the second sealing ring, a blowdown box is connected to the circumferential surface of the cylinder body, a connecting head is connected to the top of the blowdown box, the blowdown box is connected with the bridging ring through the connecting head, an umbrella-shaped shaft is sleeved on the adapter shaft, and the adapter shaft shaft surface is fixedly connected with the inner wall of the bridging ring through the umbrella-shaped shaft.

[0023] As a further description of the above technical solution:

[0024] A blowdown groove is formed in the inner wall of the air filter tank, a adapter inner ring is rotationally connected in the blowdown groove, the adapter inner ring is connected with the blowdown box, a first blowdown hole is formed in the blowdown box and the adapter inner ring, and the blowdown box is communicated with the blowdown groove through the two first blowdown holes;

[0025] A plurality of second blowdown holes in an annular array are formed in the outer wall of the air filter tank corresponding to the blowdown groove, first sealing bearings are rotationally connected on both sides of the second blowdown hole corresponding to the blowdown groove, the same adapter outer ring is rotationally connected on the two first sealing bearings, and a blowdown pipe is clamped to the outer ring surface of the adapter outer ring.

[0026] As a further description of the above technical solution:

[0027] The cleaning assembly comprises a cleaning box connected to the inner wall of the cylinder, a plurality of linkage shafts are connected to the side end face of the cleaning box, the cleaning box is connected to the adapter shaft through the plurality of linkage shafts, the inner diameters of the cleaning box and the blowdown box are the same as the inner diameters of the grid holes, and a cleaning piece is nested in the port at the other end of the cleaning box.

[0028] As a further description of the above technical solution:

[0029] The cleaning piece comprises a movable plate nested in the cleaning box, a plurality of directional holes are formed in the movable plate, a directional shaft is sleeved in each of the plurality of directional holes, the two ends of the directional shaft are respectively connected to the inner top and the inner bottom of the cleaning box, a supporting spring is sleeved on the directional shaft, and the end portion of the cleaning box is elastically supported and connected to the inner top or the inner bottom of the cleaning box through the supporting spring.

[0030] A plurality of cleaning heads are rotationally connected to the side end face of the movable plate, a cross-shaped cleaning port is formed in the end face of the cleaning head, a gear is sleeved on the end portion of the cleaning head, a same gear plate is engaged on the plurality of gears, the top of the gear plate is connected to the inner top of the cleaning box, a wheel shaft is rotationally connected to the side end face of the cleaning box, a wind wheel is sleeved on the other end of the wheel shaft, a rocker is rotationally connected to the other face of the wind wheel away from the center, the other end of the rocker is rotationally connected to the bottom of the side end face of the movable plate, and a directional pipe is clamped on the bottom of the cleaning box along the radial direction of the wind wheel.

[0031] As a further description of the above technical solution:

[0032] An adapter sleeve is rotationally connected to the adapter shaft through two second sealing bearings, a second air guide pipe is clamped on the adapter sleeve, the other end of the second air guide pipe is in communication with the bottom end of the directional pipe, a first air guide pipe is clamped on the adapter sleeve, and the other end of the first air guide pipe is in communication with the other end of the output pipe.

[0033] As a further description of the above technical solution:

[0034] A threaded rod is rotationally connected in the interior of the blowdown box, a plurality of fins are slidingly connected in the blowdown box, threaded holes are formed in the plurality of fins, the fins are threadedly connected with the threaded rod through the threaded holes, a plurality of eccentric wheels are sleeved on the shaft face of the bottom end of the threaded rod, a toothed wheel is sleeved on the shaft face of the top end of the threaded rod, a toothed plate is engaged on the toothed face of the toothed wheel, a hydraulic cylinder is mounted on the inner wall of the blowdown box, and the end portion of the toothed plate is connected with the telescopic end of the hydraulic cylinder.

[0035] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0036] 1. In the present application, the heat carried by air is used to heat and dry the air filter plate, and the reverse blowing is achieved by changing the airflow direction, using high-pressure air to blow from the inside to the outside of the air filter plate, which can effectively remove stubborn particles attached to the inside and micropores of the air filter plate, avoid the dead angle left by traditional forward blowing, and accelerate the evaporation of residual moisture on the surface and inside of the air filter plate after heating, reduce the adhesion of particles caused by moisture, and further improve the cleaning effect. After completely removing the blockage in the pores of the air filter plate, the air flow resistance is significantly reduced, the air intake efficiency of the air compressor body is improved, and the stable operation of the system is maintained.

[0037] 2. In the present application, under the action of pressure and thrust, the movable plate moves up and down along the vertical direction on multiple directional shafts, and in this process, the movable plate drives multiple gears to move synchronously. The gears move up and down and move relative to the toothed plate, and the gears drive the cleaning head to rotate, thereby changing the angle of the hot air ejected from the cleaning port on the cleaning head. Through gear transmission, the cleaning head can dynamically adjust the angle with the movable plate, so that the hot air jet range covers a larger area, avoiding the blind area of traditional fixed-angle cleaning. Dynamic angle adjustment can concentrate hot air flow to impact a specific area, improving cleaning efficiency.

[0038] 3. In the present application, the air absorbs the heat energy released by the operation of the air compressor body during the flow in the cooling pipe. The cooling pipe is uniformly wound around each heat dissipation area connected to the outer surface of the air compressor body, improving the heat dissipation effect, reducing the working temperature of the screw air compressor, and prolonging its service life. A large amount of compression heat is generated during the operation of the screw air compressor, and direct discharge will cause energy waste. Through heat exchange, this part of heat is recovered and used for heating air, which can significantly reduce energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of a screw air compressor proposed in the present application;

[0040] Figure 2 It is a schematic diagram of the structure of a screw air compressor from another perspective proposed in the present application;

[0041] Figure 3 It is a schematic diagram of the structure of a cleaning assembly in a screw air compressor proposed in the present application;

[0042] Figure 4 It is a schematic diagram of the structure of a cleaning assembly in a screw air compressor proposed in the present application;

[0043] Figure 5 It is a schematic diagram of the structure of a cleaning assembly in a screw air compressor proposed in the present application from another perspective after disassembly;

[0044] Figure 6A structure diagram of a hollow filter assembly in a screw air compressor according to the present application is provided;

[0045] Figure 7 Another structure diagram of a hollow filter assembly in a screw air compressor according to the present application is provided;

[0046] Figure 8 A structure diagram of a fin in a screw air compressor according to the present application is provided;

[0047] Figure 9 A screw air compressor according to the present application is provided; Figure 8 An enlarged structure diagram of A in the screw air compressor according to the present application is provided;

[0048] Figure 10 A structure diagram of a tooth surface plate in a screw air compressor according to the present application is provided;

[0049] Figure 11 An enlarged structure diagram of B in the screw air compressor according to the present application is provided; Figure 10

[0050] Figure 12 A sectional structure diagram of a hollow filter tank in a screw air compressor according to the present application is provided.

[0051] Legend:

[0052] 1, air compressor body; 2, input port; 3, output port; 4, cooling assembly; 401, cooling pipe; 402, output pipe; 403, input pipe; 5, air filter assembly; 501, air filter tank; 502, support ring; 503, air filter; 5031, cylinder; 5032, first sealing ring; 5033, grid hole; 5034, air filter plate; 5035, second sealing ring; 504, tank cover; 505, air inlet; 6, pollution discharge assembly; 601, adapter shaft; 602, umbrella-shaped shaft; 603, motor; 604, connector; 605, pollution discharge box; 606, adapter inner ring; 607, adapter outer ring; 608, pollution discharge pipe; 609, bridging ring; 7, cleaning assembly; 701, linkage shaft; 702, cleaning box; 703, cleaning piece; 7031, movable plate; 7032, directional shaft; 7033, support spring; 7034, cleaning head; 7035, cleaning port; 7036, gear; 7037, toothed plate; 704, air wheel; 705, axle; 706, rocker; 8, first air inlet pipe; 9, adapter sleeve; 10, second air inlet pipe; 11, threaded rod; 12, fin; 13, eccentric wheel; 14, first pollution discharge hole; 15, tooth surface wheel; 16, tooth surface plate; 17, hydraulic cylinder; 18, pollution discharge groove; 19, second pollution discharge hole. DETAILED DESCRIPTION

[0053] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0054] Please refer to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application. Figure 1 - the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application. Figure 12 The present application provides a technical solution: a screw air compressor, comprising an air compressor body 1, the air compressor body 1 is provided with an input port 2 and an output port 3 respectively, the air compressor body 1 is connected with an air filter assembly 5 corresponding to the input port 2, the air filter assembly 5 is rotatably connected with a blowdown assembly 6 at the axis of the inner side, and the inner wall of the air filter assembly 5 is provided with a cleaning assembly 7 connected with the blowdown assembly 6 and rotating synchronously.

[0055] The air compressor body 1 is connected with a cooling assembly 4, the air heated by the cooling assembly 4 enters the cleaning assembly 7, which is used for cleaning and drying the air filter assembly 5.

[0056] Further description of the above technical solution:

[0057] The cooling assembly 4 comprises a cooling pipe 401 wound and connected to the outer surface of the air compressor body 1, one end of the cooling pipe 401 is connected with an input pipe 403, the other end of the cooling pipe 401 is connected with an output pipe 402, the air filter assembly 5 comprises an air filter tank 501 connected to the position of the air compressor body 1 corresponding to the input port 2, a support ring 502 is clamped to the bottom of the inner side of the air filter tank 501, an air filter 503 is insertedly connected to the inner side of the support ring 502, a tank cover 504 for pressing the air filter 503 is installed in the top port of the air filter tank 501, and a plurality of air inlets 505 in the form of annular array are formed in the tank cover 504.

[0058] Specifically, after the air compressor body 1 is started, the motor 603 is first controlled to operate, then air is sent into the input pipe 403 of the cooling assembly 4, the air flows to the output pipe 402 through the cooling pipe 401, and the air absorbs the heat energy released by the operation of the air compressor body 1 in the process of flowing in the cooling pipe 401. The cooling pipe 401 is uniformly wound and connected to each heat dissipation area on the outer surface of the air compressor body 1, which improves the heat dissipation effect, reduces the working temperature of the screw air compressor, and prolongs the service life of the screw air compressor. A large amount of compression heat is generated during the operation of the screw air compressor.

[0059] Further description of the above technical solution:

[0060] The air filter 503 comprises a cylinder 5031 inserted into the inner side of the support ring 502, and the upper side of the cylinder 5031 is provided with a second sealing ring 5035 connected to the bottom of the tank cover 504, and the tank cover 504 is pressed against the tank cover 504 through the second sealing ring 5035;

[0061] The bottom end of the cylinder 5031 is sleeved with a first sealing ring 5032, and the cylinder 5031 is sealingly connected with the support ring 502 through the first sealing ring 5032. A plurality of grid holes 5033 in an annular array are formed on the circumferential surface of the cylinder 5031, and an air filter plate 5034 is clamped in each of the plurality of grid holes 5033.

[0062] As a further description of the above technical solution:

[0063] The pollution discharge assembly 6 comprises a connecting shaft 601 rotatably connected to the top center of the tank cover 504, and a motor 603 is installed on the top of the tank cover 504. The output shaft of the motor 603 is connected with the end of the connecting shaft 601. The top end of the cylinder 5031 is sleeved with a bridging ring 609, and the tank cover 504 is sealingly connected with the bridging ring 609. A pollution discharge box 605 is connected to the circumferential surface of the cylinder 5031, and a connecting head 604 is connected to the top of the pollution discharge box 605. The pollution discharge box 605 is connected with the bridging ring 609 through the connecting head 604. An umbrella-shaped shaft 602 is sleeved on the connecting shaft 601, and the shaft surface of the connecting shaft 601 is fixedly connected with the inner wall of the bridging ring 609 through the umbrella-shaped shaft 602. A pollution discharge groove 18 is formed in the inner wall of the air filter tank 501, and a connecting inner ring 606 is rotatably connected in the pollution discharge groove 18. The connecting inner ring 606 is connected with the pollution discharge box 605. First pollution discharge holes 14 are formed in the pollution discharge box 605 and the connecting inner ring 606. The pollution discharge box 605 is communicated with the pollution discharge groove 18 through the two first pollution discharge holes 14.

[0064] A plurality of second pollution discharge holes 19 in an annular array are formed in the outer wall of the air filter tank 501 corresponding to the pollution discharge groove 18. First sealing bearings are rotatably connected on both sides of the second pollution discharge hole 19 of the outer wall of the air filter tank 501. The same connecting outer ring 607 is rotatably connected on the two first sealing bearings. The outer ring surface of the connecting outer ring 607 is clamped with a pollution discharge pipe 608.

[0065] The specific embodiment is that the air entering the cleaning box 702 directly acts on the radial position of the wind wheel 704. The wind wheel 704 rotates under the blowing of the hot air sprayed by the directional pipe. The wind wheel 704 drives one end of the rocker 706 to make a circular motion at a position deviating from the center of the circle. The other end of the rocker 706 swings at the bottom of the side end surface of the movable plate 7031, so that the movable plate 7031 can continuously output pulling force and pushing force. Under the action of the pressure and the pushing force, the movable plate 7031 moves up and down on the plurality of directional shafts 7032 in the vertical direction.

[0066] As a further description of the above technical solution:

[0067] The cleaning assembly 7 comprises a cleaning box 702 connected to the inner wall of the cylinder 5031, the side end surface of the cleaning box 702 is connected with a plurality of linkage shafts 701, the cleaning box 702 is connected to the adapter shaft 601 through the plurality of linkage shafts 701, the inner diameter of the cleaning box 702 and the drain box 605 is the same as the inner diameter of the grid hole 5033, the port of the other end of the cleaning box 702 is nested with a cleaning piece 703, the cleaning piece 703 comprises a movable plate 7031 nested in the cleaning box 702, a plurality of directional holes are formed in the movable plate 7031, a directional shaft 7032 is sleeved in each directional hole, the two ends of the directional shaft 7032 are connected to the inner top and the inner bottom of the cleaning box 702 respectively, a supporting spring 7033 is sleeved on the directional shaft 7032, the end of the cleaning box 702 is elastically supported and connected to the inner top or the inner bottom of the cleaning box 702 through the supporting spring 7033;

[0068] The side end surface of the movable plate 7031 is rotatably connected with a plurality of cleaning heads 7034, the end surface of the cleaning head 7034 is provided with a cross-shaped cleaning port 7035, the end of the cleaning head 7034 is sleeved with a gear 7036, a plurality of gears 7036 are engaged with the same gear plate 7037, the top of the gear plate 7037 is connected to the inner top of the cleaning box 702, the side end surface of the cleaning box 702 is rotatably connected with a wheel shaft 705, the other end of the wheel shaft 705 is sleeved with a wind wheel 704, the other side of the wind wheel 704 is rotatably connected with a rocker 706, the other end of the rocker 706 is rotatably connected to the bottom of the side end surface of the movable plate 7031, the bottom of the cleaning box 702 is clamped with a directional pipe along the radial direction of the wind wheel 704, the adapter sleeve 9 is rotatably connected to the adapter shaft 601 through two second sealing bearings, the second air guide pipe 10 is clamped on the adapter sleeve 9, the other end of the second air guide pipe 10 is communicated with the bottom end of the directional pipe, the first air guide pipe 8 is clamped on the adapter sleeve 9, the other end of the first air guide pipe 8 is communicated with the other end of the output pipe 402.

[0069] The implementation is specific: during operation of the motor 603, the output shaft drives the adapter shaft 601 to rotate slowly, the adapter shaft 601 drives the bridge ring 609 to rotate slowly through the umbrella-shaped shaft 602, and the bridge ring 609 drives the pollution discharge box 605 to rotate along the circumferential surface of the cylinder 5031 through the connecting head 604. During this process, the adapter shaft 601 drives the cleaning box 702 to move synchronously with the pollution discharge box 605 through multiple linkage shafts 701. The pollution discharge box 605 is located outside the cylindrical wall formed by the air filter plate 5034, and the cleaning box 702 is located inside the cylindrical wall formed by the air filter plate 5034. The control motor 603 is temporarily stopped, the hot air discharged through the output pipe 402 flows into the adapter sleeve 9 through the first air duct 8, and then flows to the second air duct 10 through the adapter sleeve 9. The heated air is injected into the directional pipe through the second air duct 10. The hot air flows into the cleaning box 702 through the directional pipe, and then is sprayed onto the air filter plate 5034 through multiple cleaning ports 7035. Since the cleaning box 702 and the pollution discharge box 605 are connected through a single grid hole 5033, the grid hole 5033 is not disturbed by the air compressor body 1. The hot air entering the cleaning box 702 is sprayed onto the air filter plate 5034 in the grid hole 5033 through the multiple cleaning ports 7035, which reversely washes the air filter plate 5034. At the same time, the air filter plate 5034 can also be heated and dried by using the heat carried by the air. The reverse washing changes the direction of the air flow.

[0070] Specifically, a threaded rod 11 is rotatably connected inside the pollution discharge box 605, multiple fins 12 are slidably connected inside the pollution discharge box 605, threaded holes are formed in the fins 12, the fins 12 are threadedly connected with the threaded rod 11 through the threaded holes, multiple eccentric wheels 13 are sleeved on the shaft surface of the bottom end of the threaded rod 11, a toothed surface wheel 15 is sleeved on the shaft surface of the top end of the threaded rod 11, a toothed surface plate 16 is engaged with the toothed surface of the toothed surface wheel 15, a hydraulic cylinder 17 is installed on the inner wall of the pollution discharge box 605, and the end of the toothed surface plate 16 is connected with the telescopic end of the hydraulic cylinder 17.

[0071] Working principle, in use:

[0072] After the air compressor body 1 is started, the control motor 603 is first operated, and then air is sent to the input pipe 403 of the cooling assembly 4. The air flows to the output pipe 402 through the cooling pipe 401 via the input pipe 403. The air absorbs the heat energy released by the operation of the air compressor body 1 during the flow in the cooling pipe 401. The cooling pipe 401 is uniformly wound on each heat dissipation area connected to the outer surface of the air compressor body 1, which improves the heat dissipation effect, reduces the working temperature of the screw air compressor, and prolongs the service life. A large amount of compression heat is generated during the operation of the screw air compressor. Direct discharge will cause energy waste. The heat is recovered through heat exchange and used to heat the air, which can significantly reduce energy consumption.

[0073] The motor 603 drives the adapter shaft 601 to rotate slowly during operation, the adapter shaft 601 drives the bridge ring 609 to rotate slowly through the umbrella shaft 602, the bridge ring 609 drives the pollution discharge box 605 to rotate along the circumferential surface of the cylinder 5031 through the connecting head 604, in this process, the adapter shaft 601 drives the cleaning box 702 and the pollution discharge box 605 to move synchronously through multiple linkage shafts 701, the pollution discharge box 605 is located on the outer wall of the cylinder surrounded by the air filter plate 5034, and the cleaning box 702 is located on the inner wall of the cylinder surrounded by the air filter plate 5034, the motor 603 is temporarily stopped, the hot air discharged through the output pipe 402 flows into the adapter sleeve 9 through the first air duct 8, and then flows to the second air duct 10 through the adapter sleeve 9, the heated air is injected into the directional pipe from the second air duct 10, the hot air flows into the cleaning box 702 through the directional pipe, and then is sprayed on the air filter plate 5034 through multiple cleaning ports 7035, because the cleaning box 702 and the pollution discharge box 605 are connected through a single grid hole 5033, the grid hole 5033 is not disturbed by the air compressor body 1, the hot air in the cleaning box 702 is sprayed on the air filter plate 5034 in the grid hole 5033 through the action of the multiple cleaning ports 7035, and the air filter plate 5034 is reversely washed, and the air filter plate 5034 can also be heated and dried by using the heat carried by the air, the reverse washing can effectively remove stubborn particles attached to the inside of the air filter plate 5034 and the micropores by changing the direction of the air flow and using high-pressure air to blow from the inside to the outside of the air filter plate 5034, can avoid the dead angle that may be left by the traditional forward blowing, the heated air can accelerate the evaporation of the residual moisture on the surface and in the inside of the air filter plate 5034, reduce the adhesion of particles caused by moisture, and further improve the cleaning effect, after the blockage in the pores of the air filter plate 5034 is completely removed, the air flow resistance is significantly reduced, the air intake efficiency of the air compressor body 1 is improved, and the stable operation of the system is maintained, the air entering the cleaning box 702 directly acts on the radial position of the air wheel 704, the air wheel 704 rotates under the blowing of the hot air sprayed by the directional pipe, one end of the rocker 706 is driven by the air wheel 704 to make a circular motion along a position deviating from the center, the other end of the rocker 706 swings at the bottom of the side end surface of the movable plate 7031, so that the movable plate 7031 can continuously output pulling force and pushing force, and the movable plate 7031 moves up and down in the vertical direction on the multiple directional shafts 7032 under the action of the pressure and the pushing force, in this process, the movable plate 7031 drives multiple gears 7036 to move synchronously, the gears 7036 move relatively with the toothed plate 7037 during the lifting movement, the gears 7036 drive the cleaning head 7034 to rotate, so that the angle of the hot air sprayed by the cleaning port 7035 on the cleaning head 7034 is changed, the cleaning head 7034 can be dynamically adjusted in angle with the lifting of the movable plate 7031 through the transmission of the gear 7036, so that the hot air spraying range covers a larger area, avoids the blind area of traditional fixed-angle cleaning, and the dynamic angle adjustment can impact a specific area with concentrated hot air flow,Improve cleaning efficiency

[0074] The hydraulic cylinder 17 does reciprocating linear motion, when the hydraulic cylinder 17 does extension motion, the hydraulic cylinder 17 pushes the tooth surface plate 16, drives the threaded rod 11 to rotate by the linkage relationship between the tooth surface plate 16 and the tooth surface wheel 15, the threaded rod 11 drives the plurality of fins 12 to slide downward in the dirt box 605 in the process of rotating, when the hydraulic cylinder 17 does retraction motion, the hydraulic cylinder 17 pulls the tooth surface plate 16, drives the threaded rod 11 to rotate reversely, the threaded rod 11 drives the plurality of fins 12 to slide upward in the dirt box 605 in the process of rotating, the plurality of fins 12 scrape the air filter plate 5034 in the process of lifting and descending, the fins 12 scrape the air filter plate 5034 in the process of lifting and descending, can directly remove the impurities attached to the surface of the filter plate, the threaded rod 11 also drives the eccentric wheel 13 to rotate in the process of rotating, the eccentric wheel 13 generates vibration in the process of rotating, and the vibration is applied to the air filter plate 5034 through the fins 12, the vibration can make the impurities on the air filter plate 5034 produce relative motion, so that the impurities are more easily separated from the filter hole or separated, the dynamic separation process is more efficient than static filtration, and the filtration speed can be significantly improved.

[0075] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A screw air compressor, comprising an air compressor body (1), an input port (2) and an output port (3) are respectively arranged on the air compressor body (1), characterized in that, The air filter assembly (5) is rotationally connected with the blowdown assembly (6) at the shaft center of the inner side of the air filter assembly (5), and the cleaning assembly (7) is arranged on the inner side wall of the air filter assembly (5) and is connected with the blowdown assembly (6) to rotate synchronously; The cooling assembly (4) is wound on the air compressor body (1), and the air heated by the cooling assembly (4) enters the cleaning assembly (7) to clean and dry the air filter assembly (5); The air filter assembly (5) comprises an air filter tank (501) connected to the air compressor body (1) at the position corresponding to the input port (2), a support ring (502) clamped to the bottom of the inner side of the air filter tank (501), an air filter element (503) insertedly connected to the inner side of the support ring (502), and a tank cover (504) installed in the top port of the air filter tank (501) and used for pressing the air filter element (503), wherein a plurality of air inlets (505) in the form of an annular array are formed in the tank cover (504); The air filter element (503) comprises a cylinder (5031) insertedly connected to the inner side of the support ring (502), a second sealing ring (5035) connected to the bottom of the tank cover (504) and arranged above the cylinder (5031), and the tank cover (504) is pressed by the second sealing ring (5035); The cylinder (5031) is sleeved with a first sealing ring (5032) at the bottom end, the cylinder (5031) is sealingly connected with the support ring (502) through the first sealing ring (5032), a plurality of grid holes (5033) in the form of an annular array are formed in the circumferential surface of the cylinder (5031), and an air filter plate (5034) is clamped in each of the plurality of grid holes (5033); The blowdown assembly (6) comprises a transfer shaft (601) rotationally connected to the shaft center of the top of the tank cover (504), a motor (603) installed on the top of the tank cover (504), an output shaft of the motor (603) connected with the end of the transfer shaft (601), a bridging ring (609) sleeved with the top end of the cylinder (5031), the tank cover (504) sealingly connected with the bridging ring (609), a blowdown box (605) connected with the circumferential surface of the cylinder (5031), a connecting head (604) connected with the top of the blowdown box (605), the blowdown box (605) connected with the bridging ring (609) through the connecting head (604), the transfer shaft (601) sleeved with an umbrella-shaped shaft (602), and the shaft surface of the transfer shaft (601) fixedly connected with the inner wall of the bridging ring (609). The cleaning assembly (7) comprises a cleaning box (702) connected to the inner wall of the cylinder (5031), the side end surface of the cleaning box (702) is connected with a plurality of linkage shafts (701), the cleaning box (702) is connected with the adapter shaft (601) through the plurality of linkage shafts (701), the inner diameters of the cleaning box (702) and the blowdown box (605) are the same as the inner diameter of the grid hole (5033), and the port at the other end of the cleaning box (702) is nested with a cleaning piece (703). The cleaning piece (703) comprises a movable plate (7031) nested in the cleaning box (702), a plurality of directional holes are formed in the movable plate (7031), a directional shaft (7032) is sleeved in each directional hole, the two ends of the directional shaft (7032) are connected with the inner top and the inner bottom of the cleaning box (702) respectively, a supporting spring (7033) is sleeved on the directional shaft (7032), and the end of the cleaning box (702) is elastically supported and connected with the inner top or the inner bottom of the cleaning box (702) through the supporting spring (7033). The side end surface of the movable plate (7031) is rotatably connected with a plurality of cleaning heads (7034), a cross-shaped cleaning port (7035) is formed in the end surface of the cleaning head (7034), a gear (7036) is sleeved on the end of the cleaning head (7034), the same gear plate (7037) is meshed on the plurality of gears (7036), the top of the gear plate (7037) is connected to the inner top of the cleaning box (702), the side end surface of the cleaning box (702) is rotatably connected with a wheel shaft (705), the other end of the wheel shaft (705) is sleeved with a pneumatic wheel (704), the other side of the pneumatic wheel (704) is rotatably connected with a rocker (706) at a position deviated from the center, the other end of the rocker (706) is rotatably connected to the bottom of the side end surface of the movable plate (7031), and the bottom of the cleaning box (702) is clamped with a directional pipe in the radial direction of the pneumatic wheel (704).

2. A screw air compressor as claimed in claim 1, wherein, The cooling assembly (4) comprises a cooling pipe (401) wound and connected to the outer surface of the air compressor body (1), one end of the cooling pipe (401) is communicated with an input pipe (403), and the other end of the cooling pipe (401) is communicated with an output pipe (402).

3. A screw air compressor as set forth in claim 1 wherein, A blowdown groove (18) is formed in the inner side wall of the air filter tank (501), an adapter inner ring (606) is rotatably connected in the blowdown groove (18), the adapter inner ring (606) is connected with the blowdown box (605), a first blowdown hole (14) is formed in the blowdown box (605) and the adapter inner ring (606), and the blowdown box (605) is communicated with the blowdown groove (18) through the two first blowdown holes (14); A plurality of second blowdown holes (19) in annular array are formed in the outer wall of the air filter tank (501) corresponding to the blowdown groove (18), first sealing bearings are rotatably connected on the two sides of the outer wall of the air filter tank (501) corresponding to the second blowdown holes (19), the same adapter outer ring (607) is rotatably connected on the two first sealing bearings, and the outer ring surface of the adapter outer ring (607) is clamped with a blowdown pipe (608).

4. A screw air compressor as claimed in claim 3, wherein, The adapter shaft (601) is rotatably connected with an adapter sleeve (9) through two second sealing bearings, the second air duct (10) is clamped on the adapter sleeve (9), the other end of the second air duct (10) is communicated with the bottom end of the directional pipe, the first air duct (8) is clamped on the adapter sleeve (9), and the other end of the first air duct (8) is communicated with the other end of the output pipe (402).

5. A screw air compressor as claimed in claim 4, wherein, The inside of the blowdown box (605) is rotatably connected with a threaded rod (11), a plurality of fins (12) are slidably connected in the blowdown box (605), threaded holes are formed in the fins (12), the fins (12) are threadedly connected with the threaded rod (11) through the threaded holes, a plurality of eccentric wheels (13) are sleeved on the shaft surface of the bottom end of the threaded rod (11), a tooth surface wheel (15) is sleeved on the shaft surface of the top end of the threaded rod (11), the tooth surface of the tooth surface wheel (15) is meshed with a tooth surface plate (16), a hydraulic cylinder (17) is mounted on the inner wall of the blowdown box (605), and the end of the tooth surface plate (16) is connected with the telescopic end of the hydraulic cylinder (17).

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