An air purification system used in a plastic product production workshop

Abstract

The present invention provides an air purification system used in a plastic product production workshop, comprising a connecting shell, an air duct for air circulation is provided inside the connecting shell, and an air intake fan for sucking air from the outside and an exhaust fan for discharging air from the connecting shell are sequentially arranged inside the air duct, and an active carbon adsorption filter element and an air filter plate for purifying the air are also arranged inside the air duct, and an ultraviolet disinfection lamp for sterilizing and disinfecting the air is arranged between the air filter plates, and a negative ion generator for pre-treating the air and an electromagnetic valve for controlling the opening and closing of the air hole are respectively arranged on the positioning seat. The present invention realizes multiple filtration and sterilization of the air, and realizes the purpose of efficient purification of the air, and under the action of the air quality detection sensor and the reflux pipe, the air quality is accurately detected and circulated, and the purification effect of the air is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an air purification system used in a plastic product production workshop. Background Art

[0002] Nowadays, plastic product factories are generally responsible for air quality and the surrounding environment when producing plastics. However, when plastic manufacturers produce plastic products, their internal workshops will still produce a large amount of toxic and harmful gases, which will be emitted through the doors and vents of the workshops, causing pollution to the environment around the workshops. In addition, in the process of purifying the air in the workshops, it is usually only processed in the production line and wastewater treatment environment to meet environmental protection requirements. The toxic and harmful gases generated in the workshops are mostly sucked out by fans installed in the workshops and naturally purified by nature's purification ability. However, air pollution problems are rarely directly dealt with, resulting in increasingly serious air pollution problems.

[0003] Therefore, an air purification system used in a plastic product production workshop is needed to solve the above problems. Summary of the invention

[0004] The present invention aims to provide an air purification system used in a plastic product production workshop to overcome the above problems or at least partially solve the above problems.

[0005] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0006] The present invention provides an air purification system used in a plastic product production workshop, comprising a connecting shell, both sides of the connecting shell are connected to clamping frames, an air duct for air circulation is provided inside the connecting shell, and an air intake fan for sucking air from the outside and an exhaust fan for exhausting air in the connecting shell are sequentially arranged inside the air duct, and the air intake fan and the exhaust fan are respectively fixed on the output shafts on both sides of the double-axis motor, an active carbon adsorption filter element and an air filter plate for purifying the air are also arranged inside the air duct, and an ultraviolet disinfection lamp for sterilizing and disinfecting the air is arranged between the air filter plates, and the ultraviolet disinfection lamp is arranged inside the activated carbon adsorption filter element, and the activated carbon adsorption filter The core is matched and placed in the open groove on the positioning seat, and the positioning seat is arranged inside the airway and partitions the airway. The positioning seat is provided with air holes for connecting the airways, and both sides of the connecting shell are connected with a return pipe for connecting the two groups of airways, so as to facilitate the circulation of air in the two airways. The positioning seat is respectively provided with a negative ion generator for pre-treating the air and an electromagnetic valve for controlling the opening and closing of the airhole, and the negative ion generator and the electromagnetic valve are respectively arranged on both sides of the airhole, and an air quality detection sensor for detecting the air quality is arranged between the exhaust fan and the activated carbon adsorption filter element, and the air quality detection sensor is fixed on the side wall of the connecting shell.

[0007] The clamping frame includes a fixed plate, a clamping plate and an adjusting screw. The clamping plate is integrally connected to the outer side of the fixed plate, and the adjusting screw is inserted into the clamping plate. The circumference of the adjusting screw is meshed with the clamping plate through a thread, and one end of the adjusting screw is close to the inclined surface of the clamping plate.

[0008] As a further solution of the present invention, two groups of grooves are opened in the lower part of the connecting shell, and dual-axis motors for driving the air intake fan and the exhaust fan are arranged inside the two groups of grooves, and the dual-axis motor is fixed in the connecting shell by fixing parts. The bottom of the connecting shell is fixedly connected to a bottom cover plate for protecting the dual-axis motor, thereby realizing the built-in placement of the dual-axis motor and facilitating disassembly and assembly.

[0009] As a further scheme of the present invention, the dual-axis motor is provided with two groups, and the two output shafts of one group of dual-axis motors are respectively connected to the intake fan and the exhaust fan, and the two output shafts of the other group of dual-axis motors are respectively connected to the intake fan and the wind wheel, and a sealing cover is provided on the outer side of the wind wheel, and the sealing cover is provided in the airway to partition the airway, and the sealing cover is fixedly connected to the connecting shell by bolts, and one end of the connecting pipe is connected to the sealing cover, and the other end of the connecting pipe is connected to the delivery pipe on the rear cover plate, and a purification liquid tank for placing air purification liquid is provided in the middle part of the connecting shell, and a rear cover plate and a front cover plate for sealing are respectively provided on both sides of the purification liquid tank, and the rear cover plate and the front cover plate are fixedly connected to the connecting shell by bolts, and the rotation of the wind wheel facilitates the transportation and circulation of air and transports it to the purification liquid tank, thereby realizing efficient purification of air by air purification liquid.

[0010] As a further solution of the present invention, a plurality of discharge holes for air discharge are provided on the top of the front cover plate, a delivery pipe is embedded on the rear cover plate, and the end of the delivery pipe extends into the purification liquid tank, and the delivery pipe located inside the purification liquid tank is L-shaped in appearance, the delivery pipe is located at the inner bottom of the purification liquid tank, and a plurality of holes are provided on the delivery pipe, which facilitates air to enter the purification liquid tank from the bottom, thereby increasing the contact area between the air and the air purification liquid.

[0011] As a further solution of the present invention, filter plates are fixedly connected at both ends of the air duct, and the filter plates are arranged on one side of the air intake fan and the exhaust fan, and fit tightly with the air intake fan and the exhaust fan, thereby achieving the purpose of preliminary filtering of the air.

[0012] As a further solution of the present invention, a top cover plate is provided on the top of the connecting shell and fixed by bolts, and the top cover plate is arranged on the upper side of the positioning seat and the activated carbon adsorption filter element, and is in close contact with the positioning seat and the top of the activated carbon adsorption plate, the air holes on the positioning seat are respectively arranged on both sides of the activated carbon adsorption filter element, and the air hole diameters are larger on one side and smaller on the other side, and a negative ion generator is arranged at the small hole position of the air hole, and a solenoid valve is arranged at the large hole position of the air hole, and a one-way valve and a switch valve for one-way flow of air are respectively provided on the return pipe, thereby realizing multiple filtration and sterilization of the air, and also realizing circulating flow of the air, thereby performing multiple filtration and sterilization of the air, and improving the air purification effect.

[0013] As a further solution of the present invention, a positioning column is integrally connected to the bottom of the positioning seat, a positioning groove corresponding to the positioning column is opened inside the connecting shell, the positioning column is arranged in the positioning groove, annular grooves are opened on both sides of the activated carbon adsorption filter element, and annular protrusions are matched in the annular grooves, and the annular protrusions are integrally connected to the air filter plate, and a limiting groove for limiting support of the ultraviolet disinfection lamp is opened in the middle part of the air filter plate, thereby achieving the purpose of convenient disassembly and assembly, and also facilitating cleaning and maintenance.

[0014] As a further solution of the present invention, two groups of air quality detection sensors are provided, and the two groups of air quality detection sensors are respectively arranged in two groups of air ducts and respectively arranged near the exhaust fan and the wind wheel, thereby improving the air detection effect.

[0015] As a further solution of the present invention, a threaded sleeve is welded and fixed inside the clamping plate, and the threaded sleeve is sleeved on the adjusting screw and engaged by a thread. The adjusting screw has a hemispherical structure on one side close to the inclined surface of the clamping plate, and a hexagonal groove is provided on the other side of the adjusting screw. The clamping plate can be conveniently lifted and deformed by rotating and moving the adjusting screw, and the clamping plate can be in close contact with the wall hole, thereby firmly fixing the connecting shell at the wall hole, thereby improving the stability of the installation.

[0016] As a further solution of the present invention, the clamping plate is made of manganese steel alloy, and the cross-section of the clamping plate is "Z"-shaped, and the distance between the side of the clamping plate away from the fixed plate and the farthest side of the clamping plate is 5-8mm, and the side of the clamping plate close to the fixed plate is in the same plane as the circumferential section of the adjusting screw rod, and the diameter of the adjusting screw rod is 10mm, which not only improves the stability of the installation, but also facilitates disassembly and is simple to operate.

[0017] The present invention provides an air purification system used in a plastic product production workshop, which has the beneficial effects of: through the rotation of the air intake fan and the exhaust fan, the outside air and the air in the workshop are conveniently injected into the airway, and the backflow and overflow of the air are avoided, the air suction efficiency is improved, and multiple filtration and sterilization of the air are also achieved, so as to achieve the purpose of efficient air purification, and under the action of the air quality detection sensor and the return duct, the air quality is accurately detected and circulated, and the air purification effect is further improved, which not only reduces the pollution to the surrounding environment, but also ensures the safety of the workers in the production workshop, and has high safety in use;

[0018] The wind wheel can easily send the difficult-to-purify air into the purification liquid tank, and the corresponding air purification liquid can accurately purify the stubborn polluted gas, further improving the purification efficiency and reducing the environmental pollution effect;

[0019] By adjusting the rotation and movement of the screw rod, the clamping plate can be easily lifted and deformed, so that the connecting shell can be firmly fixed to the hole in the workshop through the clamping plate, thereby improving the fixing effect and facilitating disassembly, with simple operation and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 It is a front view of the present invention.

[0023] Figure 3 It is a rear view of the present invention.

[0024] Figure 4 It is a top view of the present invention.

[0025] Figure 5 It is a left view of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the connection shell in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the activated carbon adsorption filter element in the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the ultraviolet disinfection lamp in the present invention.

[0029] Fig. 9 It is a structural schematic diagram of the air filter plate in the present invention.

[0030] Fig.10 It is a structural schematic diagram of the rear cover plate and the connecting pipe in the present invention.

[0031] Fig.11 It is a schematic structural diagram of the rear cover plate in the present invention.

[0032] Fig.12 It is a structural schematic diagram of the clamping frame in the present invention.

[0033] Fig.13 For the present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0034] In the figure: 1. connecting shell; 2. top cover plate; 3. return duct; 4. front cover plate; 5. clamping frame; 6. intake fan; 7. filter plate; 8. activated carbon adsorption filter element; 9. ultraviolet disinfection lamp; 10. air filter plate; 11. air duct; 12. groove; 13. purification liquid tank; 14. positioning seat; 15. exhaust fan; 16. dual-axis motor; 17. bottom cover plate; 18. negative ion generator; 19. solenoid valve; 20. wind wheel; 21. sealing cover; 22. connecting pipe; 23. rear cover plate; 24. delivery pipe; 25. air quality detection sensor; 51. fixing plate; 52. clamping plate; 53. adjusting screw; 81. annular groove; 101. annular protrusion; 102. limit groove; 141. air hole. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] See also Figure 1-9 and Fig.13 An air purification system for use in a plastic product production workshop provided by an embodiment of the present invention comprises a connecting shell 1, both sides of the outside of the connecting shell 1 are connected to clamping frames 5, an air duct 11 for air circulation is provided inside the connecting shell 1, and an intake fan 6 for sucking air from the outside and an exhaust fan 15 for discharging air from the connecting shell 1 are sequentially arranged inside the air duct 11, and the intake fan 6 and the exhaust fan 15 are respectively fixed on the output shafts on both sides of the dual-axis motor 16, an active carbon adsorption filter element and an air filter plate 10 for purifying the air are also arranged inside the air duct 11, and an ultraviolet disinfection lamp 9 for sterilizing and disinfecting the air is arranged between the air filter plates 10, and the ultraviolet disinfection lamp 9 is arranged inside the activated carbon adsorption filter element 8, the activated carbon adsorption filter element 8 is matched and placed in the opening groove on the positioning seat 14, and the positioning seat 14 is arranged inside the air duct 11 and isolates the air duct 11, and an air hole 141 for connecting the air duct 11 is opened on the positioning seat 14, the A return pipe 3 for connecting the two groups of airways 11 is connected to both sides of the connecting shell 1, so as to facilitate the circulation of air in the two airways 11. A negative ion generator 18 for pre-treating the air and a solenoid valve 19 for controlling the opening and closing of the air hole 141 are respectively arranged on the positioning seat 14, and the negative ion generator 18 and the solenoid valve 19 are respectively arranged on both sides of the air hole 141. An air quality detection sensor 25 for detecting the air quality is arranged between the exhaust fan 15 and the activated carbon adsorption filter element 8, and the air quality detection sensor 25 is fixed on the side wall of the connecting shell 1.

[0037] Two groups of grooves 12 are opened at the lower part of the connecting shell 1, and dual-axis motors 16 for driving the air inlet fan and the exhaust fan 15 are arranged inside the two groups of grooves 12, and the dual-axis motor 16 is fixed in the connecting shell 1 by fixing parts, and a bottom cover plate 17 for protecting the dual-axis motor 16 is fixedly connected to the bottom of the connecting shell 1.

[0038] Filter plates 7 are fixedly connected at both ends of the air duct 11 , and the filter plates 7 are arranged on one side of the air intake fan 6 and the exhaust fan 15 , and are tightly attached to the air intake fan 6 and the exhaust fan 15 .

[0039] A top cover plate 2 is provided on the top of the connecting shell 1 and fixed by bolts, and the top cover plate 2 is arranged on the upper side of the positioning seat 14 and the activated carbon adsorption filter element 8, and is in close contact with the positioning seat 14 and the top of the activated carbon adsorption plate, the air holes 141 on the positioning seat 14 are respectively arranged on both sides of the activated carbon adsorption filter element 8, and the aperture of the air hole 141 is larger on one side and smaller on the other side, and a negative ion generator 18 is arranged at the small hole position of the air hole 141, and a solenoid valve 19 is arranged at the large hole position of the air hole 141, and a one-way valve and a switch valve for one-way flow of air are respectively arranged on the reflux pipe 3.

[0040] A positioning column is integrally connected to the bottom of the positioning seat 14, and a positioning groove corresponding to the positioning column is opened inside the connecting shell 1, and the positioning column is arranged in the positioning groove. Annular grooves 81 are opened on both sides of the activated carbon adsorption filter element 8, and an annular protrusion 101 is matched in the annular groove 81, and the annular protrusion 101 is integrally connected to the air filter plate 10, and a limiting groove 102 is opened in the middle of the air filter plate 10 to limit the support of the ultraviolet disinfection lamp 9.

[0041] During use of the present invention, the connecting shell 1 is fixed to the hole of the workshop, and then the operation of the dual-axis motor 16 drives the intake fan 6 and the exhaust fan 15 to rotate respectively. Since the intake fan 6 is provided with two groups and is respectively arranged near the external air of the workshop and the internal space of the workshop, it is realized that the external air is sucked into one air passage 11, and the internal air of the workshop is sucked into another air passage 11. Before the air enters the air passage 11, the air passes through the filter plate 7, and the air is preliminarily filtered by the filter plate 7. Then, the external air and the air in the workshop circulate in the corresponding air passages 11 respectively, and the air is sterilized and disinfected by the negative ion generator 18 in the corresponding air passage 11, the air filter plate 10 preliminarily filters the impurities in the air, the activated carbon adsorption filter element 8 adsorbs the impurities and toxic and harmful substances in the air, and the ultraviolet disinfection lamp 9 performs secondary sterilization and disinfection on the air. Toxins are detected, and then the purified air is detected by the air quality detection sensor 25, and the detection signal is transmitted to the remote processing unit, and the detection signal is processed by the remote processing unit, and the feedback result is output. If the air quality meets the emission standard, the switch valve on the return pipe 3 is closed, and the air in the airway 11 is sucked by the exhaust fan 15 and discharged into the workshop; if the air quality does not meet the emission standard, the switch valve on the return pipe 3 is opened, and the solenoid valve 19 on the positioning seat 14 is closed, and then the air circulates in the two groups of airways 11 through the return pipe 3, and is purified multiple times by the air purification equipment in the two groups of airways 11, and is detected in real time by the air quality detection sensor 25 in the airway 11 to meet the purification standard, and then the purified air is discharged into the workshop through the exhaust fan, thereby ensuring the air quality in the workshop.

[0042] After the air in the workshop enters the air duct 11, it is purified by the air purification equipment and detected by the air quality detection sensor 25, and reaches the exhaust standard. At this time, the air enters the purification liquid tank 13 through the connecting pipe 22 and the delivery pipe 24, and is discharged from the purification liquid tank 13 through the discharge hole and flows back into the workshop.

[0043] like Figure 1-6 , Fig.10 and Fig.11As shown, the dual-axis motor 16 is provided with two groups, wherein the two output shafts of one group of dual-axis motors 16 are respectively connected to the intake fan 6 and the exhaust fan 15, and the two output shafts of the other group of dual-axis motors 16 are respectively connected to the intake fan 6 and the wind wheel 20, and the outer side of the wind wheel 20 is provided with a sealing cover 21, and the sealing cover 21 is arranged in the air duct 11 and partitions the air duct 11, and the sealing cover 21 is fixedly connected to the connecting shell 1 by bolts, and one end of the connecting pipe 22 is connected to the sealing cover 21, and the other end of the connecting pipe 22 is connected to the delivery pipe 24 on the rear cover plate 23, and a purification liquid tank 13 for placing air purification liquid is opened in the middle part of the connecting shell 1, and a rear cover plate 23 and a front cover plate 4 for sealing are respectively arranged on both sides of the purification liquid tank 13, and the rear cover plate 23 and the front cover plate 4 are fixedly connected to the connecting shell 1 by bolts.

[0044] The top of the front cover plate 4 is provided with a plurality of discharge holes for air discharge, the rear cover plate 23 is inlaid with a delivery pipe 24, and the end of the delivery pipe 24 extends into the purification liquid tank 13, and the delivery pipe 24 located inside the purification liquid tank 13 has an L-shaped appearance, and the delivery pipe 24 is located at the inner bottom of the purification liquid tank 13, and a plurality of holes are provided on the delivery pipe 24.

[0045] The air quality detection sensors 25 are provided in two groups, and the two groups of air quality detection sensors 25 are respectively arranged in two groups of air passages 11 and are respectively arranged at positions close to the exhaust fan 15 and the wind wheel 20 .

[0046] During use of the present invention, after the air has circulated for many times and still cannot meet the qualified standards, the solenoid valve 19 on the positioning seat 14 and the switch valve on the return pipe 3 are closed, and the dual-axis motor 16 is operated to drive the wind wheel 20 to rotate, and then the wind wheel 20 rotates to input the air in the airway 11 into the connecting pipe 22, and then the air enters the purification liquid tank 13 through the connecting pipe 22 and the conveying pipe 24, and then the air and the air purification liquid in the purification liquid tank 13 are fully reacted, so that the air is accurately purified by the air purification liquid, and the purified air is discharged from the purification liquid tank 13 through the discharge hole on the front cover plate 4 and enters the workshop, which not only realizes efficient purification of the air, but also ensures the air quality in the workshop and reduces the pollution effect.

[0047] like Figure 1 and Fig.12 As shown, the clamping frame 5 includes a fixed plate 51, a clamping plate 52 and an adjusting screw 53. The clamping plate 52 is integrally connected to the outer side surface of the fixed plate 51, and the adjusting screw 53 is inserted into the clamping plate 52. The circumferential surface of the adjusting screw 53 is meshed with the clamping plate 52 through a thread, and one end of the adjusting screw 53 is close to the inclined surface of the clamping plate 52.

[0048] A threaded sleeve is welded and fixed inside the clamping plate 52, and the threaded sleeve is sleeved on the adjusting screw 53 and meshed with each other through threads. The adjusting screw 53 is hemispherical on one side close to the inclined surface of the clamping plate 52, and a hexagonal groove is provided on the other side of the adjusting screw 53.

[0049] The clamping plate 52 is made of manganese steel alloy, and the cross-section of the clamping plate 52 is "Z"-shaped, and the distance between the side of the clamping plate 52 away from the fixed plate 51 and the farthest side of the clamping plate 52 is 5-8mm, and the side of the clamping plate 52 close to the fixed plate 51 is in the same plane as the circumferential section of the adjusting screw 53, and the diameter of the adjusting screw 53 is 10mm.

[0050] The adjusting screw rod 53 is driven to rotate by the rotation of the hexagonal wrench, and the adjusting screw rod 53 rotates and moves under the action of the thread, so that the end of the adjusting screw rod 53 contacts the inclined surface of the clamping plate 52, thereby lifting and deforming the clamping plate 52, and then the clamping plate 52 is opened outward, and the outer end of the clamping plate 52 contacts the inner wall of the hole, so that the connecting shell 1 is firmly pressed in the hole of the workshop by the clamping plate 52, thereby improving the stability of the placement and preventing it from falling off. When disassembly is required, it is only necessary to rotate the adjusting screw rod 53 in the opposite direction to separate the adjusting screw rod 53 from the inclined surface of the clamping plate 52, and then the clamping plate 52 recovers its deformation under the action of its own elastic force, and then the outer end of the clamping plate 52 is separated from the inner wall of the hole, and the connecting shell 1 can be taken out from the hole of the workshop, which is simple to operate.

[0051] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An air purification system used in a plastic product production workshop, comprising a connecting shell (1), characterized in that: The connecting shell (1) is provided with a clamping frame (5) on both sides of its exterior, and an air duct (11) for air circulation is provided inside the connecting shell (1), and an air intake fan (6) for sucking air from the outside and an exhaust fan (15) for exhausting air from the connecting shell (1) are arranged in sequence inside the air duct (11), and the air intake fan (6) and the exhaust fan (15) are respectively fixed on the output shafts on both sides of the double-axis motor (16), and an active carbon adsorption filter element (8) and an air filter plate (10) for purifying the air are also arranged inside the air duct (11), and an ultraviolet disinfection lamp (9) for sterilizing and disinfecting the air is arranged between the air filter plates (10), and the ultraviolet disinfection lamp (9) is arranged inside the active carbon adsorption filter element (8), and the active carbon adsorption filter element (8) is matched and placed in the opening groove on the positioning seat (14), and the positioning seat (14) is arranged on The air passage (11) is arranged inside the air passage (11) and the air passage (11) is partitioned. The positioning seat (14) is provided with an air hole (141) for connecting the air passage (11). Both sides of the connecting shell (1) are connected with a return pipe (3) for connecting the two groups of air passages (11), so as to facilitate the circulation of air in the two air passages (11). The positioning seat (14) is provided with a negative ion generator (18) for pre-treating the air and a solenoid valve (19) for controlling the opening and closing of the air hole (141), and the negative ion generator (18) and the solenoid valve (19) are respectively arranged on both sides of the air hole (141). An air quality detection sensor (25) for detecting the air quality is arranged between the exhaust fan (15) and the activated carbon adsorption filter element (8), and the air quality detection sensor (25) is fixed on the side wall of the connecting shell (1); The clamping frame (5) comprises a fixing plate (51), a clamping plate (52) and an adjusting screw (53); the clamping plate (52) is integrally connected to the outer side surface of the fixing plate (51), and the adjusting screw (53) is plugged into the clamping plate (52); the peripheral surface of the adjusting screw (53) is meshed with the clamping plate (52) through a thread, and one end of the adjusting screw (53) is close to the inclined surface of the clamping plate (52); The connection housing (1) is provided with two groups of grooves (12) at the bottom, and a dual-axis motor (16) for driving an air intake fan and an air exhaust fan (15) is arranged inside the two groups of grooves (12), and the dual-axis motor (16) is fixed in the connection housing (1) via a fixing member, and a bottom cover plate (17) for protecting the dual-axis motor (16) is fixedly connected to the bottom of the connection housing (1); The dual-shaft motor (16) is provided with two groups, wherein the two output shafts of one group of dual-shaft motors (16) are respectively connected to an intake fan (6) and an exhaust fan (15), and the two output shafts of the other group of dual-shaft motors (16) are respectively connected to an intake fan (6) and a wind wheel (20), wherein a sealing cover (21) is provided on the outer side of the wind wheel (20), and the sealing cover (21) is provided in the air passage (11) and partitions the air passage (11), and the sealing cover (21) is connected to the housing (1) by bolts. The sealing cover (21) is connected to one end of a connecting pipe (22), and the other end of the connecting pipe (22) is connected to a delivery pipe (24) on a rear cover plate (23). A purification liquid tank (13) for placing air purification liquid is provided in the middle of the connecting shell (1), and a rear cover plate (23) and a front cover plate (4) for sealing are respectively provided on both sides of the purification liquid tank (13), and the rear cover plate (23) and the front cover plate (4) are both fixedly connected to the connecting shell (1) by bolts; The top of the front cover plate (4) is provided with a plurality of discharge holes for discharging air, the rear cover plate (23) is inlaid with a delivery pipe (24), and the end of the delivery pipe (24) extends into the purification liquid tank (13), and the delivery pipe (24) located inside the purification liquid tank (13) has an L-shaped appearance, the delivery pipe (24) is located at the inner bottom of the purification liquid tank (13), and a plurality of holes are provided on the delivery pipe (24); After the air has circulated for many times and still fails to meet the qualified standard, the electromagnetic valve (19) on the positioning seat (14) and the switch valve on the return pipe (3) are closed, and the double-axis motor (16) is operated to drive the wind wheel (20) to rotate, and then the wind wheel (20) rotates to input the air in the airway (11) into the connecting pipe (22), and then the air enters the purification liquid tank (13) through the connecting pipe (22) and the conveying pipe (24), and then the air is fully contacted with the air purification liquid in the purification liquid tank (13), so that the air is accurately purified by the air purification liquid, and the purified air is discharged from the purification liquid tank (13) through the discharge hole on the front cover plate (4) and enters the workshop, which not only realizes efficient purification of the air, but also ensures the air quality in the workshop and reduces the pollution effect; Filter plates (7) are fixedly connected at both ends of the air duct (11), and the filter plates (7) are arranged on one side of the air intake fan (6) and the exhaust fan (15), and are closely attached to the air intake fan (6) and the exhaust fan (15); A top cover plate (2) is provided on the top of the connecting shell (1) and fixed by bolts, and the top cover plate (2) is arranged on the upper side of the positioning seat (14) and the activated carbon adsorption filter element (8), and is in close contact with the positioning seat (14) and the top of the activated carbon adsorption plate, the air holes (141) on the positioning seat (14) are respectively arranged on both sides of the activated carbon adsorption filter element (8), and the aperture of the air holes (141) is larger on one side and smaller on the other side, and a negative ion generator (18) is provided at the small hole position of the air hole (141), and a solenoid valve (19) is provided at the large hole position of the air hole (141), and a one-way valve and a switch valve for one-way flow of air are respectively provided on the return pipe (3); A positioning column is integrally connected to the bottom of the positioning seat (14); a positioning groove corresponding to the positioning column is provided inside the connection shell (1); the positioning column is arranged in the positioning groove; annular grooves (81) are provided on both sides of the activated carbon adsorption filter element (8); annular protrusions (101) are matched and provided in the annular grooves (81); the annular protrusions (101) are integrally connected to the air filter plate (10); a limiting groove (102) for limiting and supporting the ultraviolet disinfection lamp (9) is provided in the middle of the air filter plate (10); The air quality detection sensors (25) are provided in two groups, and the two groups of air quality detection sensors (25) are respectively arranged in two groups of air passages (11), and are respectively arranged at locations close to the exhaust fan (15) and the wind wheel (20); A threaded sleeve is welded and fixed inside the clamping plate (52), and the threaded sleeve is sleeved on the adjusting screw rod (53) and meshed with each other through threads. The adjusting screw rod (53) has a hemispherical structure on one side close to the inclined surface of the clamping plate (52), and a hexagonal groove is provided on the other side of the adjusting screw rod (53); The clamping plate (52) is made of manganese steel alloy, and the cross-section of the clamping plate (52) is "Z"-shaped, and the distance between the side of the clamping plate (52) away from the fixed plate (51) and the farthest side of the clamping plate (52) is 5-8 mm, and the side of the clamping plate (52) close to the fixed plate (51) is in the same plane as the circumferential section of the adjusting screw rod (53), and the diameter of the adjusting screw rod (53) is 10 mm.

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