A photodegradation device for PAHs in simulated solution

Abstract

The present invention relates to the field of photodegradation technology, and discloses a photodegradation device for PAHs in a simulated solution, comprising a base, a housing fixedly connected to the upper surface of the base, a plurality of quartz tubes arranged on the upper surface of the housing, a sealing assembly sealed at the top of the quartz tube, a magnetic stirrer arranged inside the quartz tube, the magnetic forces at both ends of the magnetic stirrer being opposite, a power output assembly arranged inside the housing, a pad corresponding to the bottom of each quartz tube being connected to the output end of the power output assembly in a driving manner, two connecting magnetic blocks fixedly connected to the top of the pad, and the suction forces on the upper surfaces of the two connecting magnetic blocks being opposite, and the two connecting magnetic blocks being respectively adsorbed to the two ends of the magnetic stirrer in the corresponding quartz tube. In the present invention, when performing a photodegradation test of PAHs in a simulated solution, the test substance in the quartz tube is stirred and mixed to ensure the mixing uniformity of the test substance in the quartz tube, to ensure the effect of the photodegradation test, and to improve the use of the photodegradation device for PAHs in the simulated solution.

Description

Technical Field

[0001] The invention relates to the technical field of photodegradation, in particular to a device for photodegrading PAHs in a simulated solution. Background Art

[0002] In recent years, substation fire accidents have occurred occasionally. The flue gas mixture produced by combustion after a substation fire mainly includes oil volatiles, CO and CO2 gases produced by the combustion of oil and cable insulation, and polycyclic aromatic hydrocarbons, nitroaromatic hydrocarbons, oxygen-containing polycyclic aromatic hydrocarbons, black carbon and other carcinogens produced by incomplete combustion. Among them, polycyclic aromatic hydrocarbons will penetrate into the soil. Considering the presence of adsorbed water film on the surface of soil particles and the adhesion of smoke particles, it is necessary to use an aqueous solution to simulate the photodegradation of PAHs.

[0003] Currently, most existing photodegradation devices have the following deficiencies: during the photodegradation test of PAHs in simulated aqueous solutions, the uneven mixing of the test substances in the quartz tube results in poor photodegradation test results, which affects the use of the photodegradation device for PAHs in simulated solutions. Therefore, a photodegradation device for PAHs in simulated solutions was designed. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides a device for photodegradation of PAHs in a simulated solution. The device is mainly designed to solve the problem that during the photodegradation test of PAHs in a simulated aqueous solution, the test substances in the quartz tube are unevenly mixed, resulting in poor photodegradation test results and affecting the use of the device for photodegradation of PAHs in a simulated solution.

[0006] (2) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A device for photodegrading PAHs in a simulated aqueous solution comprises a base, wherein a housing is fixedly connected to the upper surface of the base, a plurality of quartz tubes are arranged on the upper surface of the housing, a sealing assembly is sealedly connected to the top of the quartz tubes, a magnetic stirrer is arranged inside the quartz tubes, and the magnetic forces at both ends of the magnetic stirrer are opposite, a power output assembly is arranged inside the housing, an output end of the power output assembly is transmission-connected to a pad corresponding to the bottom end of each quartz tube, two connecting magnetic blocks are fixedly connected to the top of the pad, and the suction forces of the upper surfaces of the two connecting magnetic blocks are opposite, and the two connecting magnetic blocks are respectively adsorbed to the two ends of the magnetic stirrer in the corresponding quartz tube.

[0009] Furthermore, the power output assembly includes a motor and a rotating shaft fixedly connected to the bottom end of each pad block, one end of the motor output shaft is fixedly connected to a driving gear, the rotating shaft is rotatably arranged in the shell, and a driven gear meshing with the driving gear is fixedly sleeved on the outside of the rotating shaft.

[0010] Furthermore, the sealing assembly includes a top plug arranged on the top of the quartz tube, a ball head column is integrally formed on the bottom of the top plug, a support ring is fixed inside the quartz tube, and the ball head column is plugged into the support ring; the outer side of the top plug inserted into one end of the quartz tube is fixedly sleeved with a sealing cylinder and an anti-slip ring, the end of the sealing cylinder and the support ring are in contact, and the outer walls of the sealing cylinder and the anti-slip ring are in contact with the inner wall of the quartz tube.

[0011] Furthermore, a curved cylinder is integrally formed on the inner circumference wall of the quartz tube, and a liquid outlet pipe is integrally formed on the outer circumference wall of the quartz tube. The liquid outlet pipe is connected to the quartz tube, and a side plug is sealed and plugged into the outer end of the liquid outlet pipe.

[0012] Furthermore, a transparent protective cover is provided on the upper surface of the shell, a limiting ring is fixed on the inner wall of the transparent protective cover, a limiting plate is provided on the outer sleeve of the quartz tube, a ball head rod is inserted at the bottom of the limiting plate, the bottom end of the ball head rod passes through the limiting ring, and the limiting plate is in contact with the limiting ring.

[0013] Furthermore, a transparent tube is provided on the upper surface of the shell, a sealing plug is inserted at the top of the transparent tube, a wire fixing plug is inserted at the top of the sealing plug, a lamp post is provided inside the transparent tube, a hollow plate is provided at the top of the lamp post, and the hollow plate is adapted to the inner diameter of the transparent tube.

[0014] Furthermore, a circulation pipe is provided in the transparent tube at the top of the hollow plate, and a water inlet pipe and a water outlet pipe are respectively connected to both ends of the circulation pipe.

[0015] Furthermore, the base includes a counterweight plate and a base plate rotatably connected to the upper end of the counterweight plate, a protective tube is sleeved on the outer side of the base plate, and the inner wall of the protective tube is arranged to fit the outer edge of the counterweight plate.

[0016] Furthermore, a plurality of universal balls are fixedly connected to the bottom of the base plate, and the bottom ends of the universal balls are in contact with the counterweight plate.

[0017] Furthermore, a plurality of lower magnet blocks are provided on the upper surface of the counterweight plate, and a plurality of upper magnet blocks are provided on the bottom of the base plate. The lower magnet blocks are magnetically attracted to the upper magnet blocks, and an anti-slip pad is fixedly connected to the bottom of the counterweight plate.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a device for photodegradation of PAHs in a simulated solution, which has the following beneficial effects:

[0020] 1. The present invention drives the rotating shaft to rotate by meshing the driving gear and the driven gear, which in turn drives the pad to rotate. Since the connecting magnetic block on the pad is attracted to the magnetic stirrer, the magnetic stirrer is driven to rotate, thereby stirring and mixing the solution in the quartz tube, thereby ensuring the mixing uniformity of the test substance in the quartz tube, ensuring the effect of the photodegradation test, and improving the use of the photodegradation equipment of PAHs in the simulated solution.

[0021] 2. The present invention facilitates the inspection of experimental results by providing a liquid outlet pipe. After the test substance in the quartz tube is degraded, the operator can first remove the side plug. The degraded test substance in the quartz tube flows out of the liquid outlet pipe, and the operator can test it to check the test results of photodegradation.

[0022] 3. The present invention ensures the sealing between the top plug and the quartz tube by providing a sealing cylinder, thereby ensuring the accuracy of the photodegradation test of the test object in the quartz tube. At the same time, the provision of the anti-slip ring increases the damping between the top plug and the quartz tube, preventing the top plug from falling off the quartz tube when the operator touches it during the photodegradation test, thereby ensuring the progress of the photodegradation test.

[0023] 4. The present invention, through the provision of a water inlet pipe, can inject condensed water through the water inlet pipe, thereby cooling the lamp post during long-term operation to ensure the normal use of the lamp post. The provision of a counterweight plate ensures the stability of the photodegradation of PAHs in the simulated aqueous solution. At the same time, under the action of the bearing and the support column, the shell and the quartz tube thereon can be rotated to check the photodegradation conditions in the quartz tube at different positions, which has good practicality.

[0024] 5. The present invention can support the rotation of the shell through the setting of the universal ball to ensure its stable rotation. At the same time, when it rotates to the position of different quartz tubes, the upper magnet block will be attracted to the corresponding lower magnet block, so that the operator can check the solution in the quartz tube easily and the stability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0026] Figure 2 This is a partial cross-sectional structural diagram of Example 1 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0027] Figure 3 This is a partial cross-sectional structural diagram of Example 1 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0028] Figure 4 This is a partial cross-sectional structural schematic diagram of Example 1 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of Example 2 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0030] Figure 6 This is a partial cross-sectional structural diagram of Example 2 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention;

[0031] Figure 7 This is a partial structural diagram of Example 1 of a device for photodegradation of PAHs in a simulated solution proposed by the present invention.

[0032] In the figure: 1. base plate; 2. counterweight plate; 3. shell; 4. transparent tube; 5. quartz tube; 501. arc tube; 502. liquid outlet pipe; 503. side plug; 504. support ring; 6. magnetic stirring bar; 7. lamp post; 8. driving gear; 9. rotating shaft; 10. pad; 11. driven gear; 12. top plug; 1201. ball head column; 1202. sealing tube; 1203. anti-slip ring; 13. transparent protective cover; 14. limiting ring; 15. limiting plate; 16. ball head rod; 17. hollow plate; 18. circulation tube; 19. water inlet pipe; 20. water outlet pipe; 21. sealing plug; 22. wire fixing plug; 23. bearing; 24. support column; 25. protective tube; 26. universal ball; 27. lower magnet block; 28. upper magnet block; 29. ​​anti-slip pad; 30. connecting magnet block. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] like Figure 1-7As shown, a device for photodegradation of PAHs in a simulated solution includes a base, a shell 3 is fixedly connected to the upper surface of the base, a plurality of quartz tubes 5 are provided on the upper surface of the shell 3, a sealing assembly is sealed at the top of the quartz tube 5, a magnetic stirrer 6 is provided inside the quartz tube 5, and the magnetic forces at both ends of the magnetic stirrer 6 are opposite, a power output assembly is provided inside the shell 3, and the output end of the power output assembly is transmission-connected to a pad 10 corresponding to the bottom end of each quartz tube 5, two connecting magnetic blocks 30 are fixedly connected to the top of the pad 10, and the suction forces on the upper surfaces of the two connecting magnetic blocks 30 are opposite, and the two connecting magnetic blocks 30 are respectively adsorbed to the two ends of the magnetic stirrer 6 in the corresponding quartz tube 5.

[0035] From the above description, it can be seen that the beneficial effects of the present invention are: by setting a sealing component, effective sealing of the quartz tube 5 is achieved, and the gasket 10 is driven to rotate by the power output component. During the rotation of the gasket 10, the two connecting magnetic blocks 30 at the top of the gasket 10 will be driven to rotate around the axis of the gasket 10, and then the magnetic stirrer 6 can be driven to rotate by the two connecting magnetic blocks 30, thereby achieving stirring of the solution inside the quartz tube 5 under the premise of sealing the quartz tube 5, thereby avoiding the problem of uneven mixing of the test substances in the quartz tube 5, and effectively improving the effect of the photodegradation test.

[0036] Furthermore, the power output assembly includes a motor and a rotating shaft 9 fixedly connected to the bottom end of each pad 10, one end of the motor output shaft is fixedly connected to the driving gear 8, the rotating shaft 9 is rotatably arranged in the housing 3, and the outside of the rotating shaft 9 is fixedly sleeved with a driven gear 11 that meshes with the driving gear 8.

[0037] From the above description, it can be seen that the motor drives the driving gear 8 to rotate, and the driving gear 8 drives the driven gears 11 to rotate, and then drives the rotating shaft 9 to rotate, thereby driving the pad 10 to rotate. The gear transmission is reliable, and multiple driven wheels can be driven to rotate by one motor, thereby improving the mixing efficiency.

[0038] Furthermore, the sealing assembly includes a top plug 12 arranged on the top of the quartz tube 5, and a ball head column 1201 is integrally formed on the bottom of the top plug 12. A support ring 504 is fixed inside the quartz tube 5, and the ball head column 1201 is plugged into the support ring 504; the top plug 12 is inserted into the outer side of one end of the quartz tube 5 and is fixed with a sealing tube 1202 and an anti-slip ring 1203, and the ends of the sealing tube 1202 and the support ring 504 are in contact, and the outer walls of the sealing tube 1202 and the anti-slip ring 1203 are in contact with the inner wall of the quartz tube 5.

[0039] From the above description, it can be seen that the provision of the support ring 504 facilitates the fitting of the sealing cover with the ball head column 1201 to improve the sealing performance, and the provision of the sealing tube 1202 and the anti-slip ring 1203 further improves the sealing performance, while facilitating disassembly and processing operations after the test.

[0040] Furthermore, a curved cylinder 501 is integrally formed on the inner circumference wall of the quartz tube 5 , and a liquid outlet pipe 502 is integrally formed on the outer circumference of the quartz tube 5 . The liquid outlet pipe 502 is connected to the quartz tube 5 , and a side plug 503 is sealed and inserted at the outer end of the liquid outlet pipe 502 .

[0041] As can be seen from the above description, by providing the arc-surface cylinder 501 and the liquid outlet pipe 502, it is convenient to discharge the solution after the reaction, and by providing the side seal 503, it is convenient to seal or open, thereby improving applicability.

[0042] Furthermore, a transparent protective cover 13 is provided on the upper surface of the shell 3, and a limiting ring 14 is fixed on the inner wall of the transparent protective cover 13. A limiting plate 15 is provided on the outer sleeve of the quartz tube 5, and a ball head rod 16 is inserted into the bottom of the limiting plate 15. The bottom end of the ball head rod 16 passes through the limiting ring 14, and the limiting plate 15 is in contact with the limiting ring 14.

[0043] As can be seen from the above description, the transparent protective cover 13 is provided to protect the quartz tube 5, and the limiting ring 14, the limiting plate 15 and the ball head rod 16 are provided to limit the quartz tube 5, thereby ensuring the stability of the quartz tube 5 during the test and ensuring the smooth progress of the test.

[0044] Furthermore, a transparent tube 4 is provided on the upper surface of the shell 3, a sealing plug 21 is inserted at the top end of the transparent tube 4, a wire fixing plug 22 is inserted at the top end of the sealing plug 21, a lamp post 7 is provided inside the transparent tube 4, a hollow plate 17 is provided at the top end of the lamp post 7, and the hollow plate 17 is adapted to the inner diameter of the transparent tube 4.

[0045] From the above description, it can be seen that the transparent tube 4 is sealed by the sealing plug 21, the lamp post 7 is provided to provide lighting, which is convenient for observing the test conditions in the quartz tube 5, and the hollow plate 17 is used to fix the lamp bead 7 to ensure the stability of the lamp bead 7.

[0046] Furthermore, a circulation pipe 18 is provided at the top of the hollow plate 17 in the transparent tube 4 , and a water inlet pipe 19 and a water outlet pipe 20 are respectively connected to both ends of the circulation pipe 18 .

[0047] As can be seen from the above description, the flow pipe 18 is used to connect the water inlet pipe 19 and the water outlet pipe 20, and cooling water is introduced into the flow pipe 18 to absorb heat through the cooling water, thereby improving the overall heat dissipation performance of the device.

[0048] Furthermore, the base includes a counterweight plate 2 and a base plate 1 rotatably connected to the upper end of the counterweight plate 2 . A protective tube 25 is sleeved on the outer side of the base plate 1 , and the inner wall of the protective tube 25 is arranged to fit the outer edge of the counterweight plate 2 .

[0049] From the above description, it can be seen that through the rotational connection between the counterweight plate 2 and the base plate 1, the shell 3 and the quartz tube 5 thereon can be rotated, so as to check the photodegradation conditions in the quartz tube 5 at different positions. It has good practicality, and the protective tube 25 protects the internal rotating structure to prevent damage.

[0050] Furthermore, a plurality of universal balls 26 are fixedly connected to the bottom of the base plate 1 , and the bottom ends of the universal balls 26 are in contact with the counterweight plate 2 .

[0051] As can be seen from the above description, the arrangement of the universal ball 26 facilitates the rotation between the counterweight plate 2 and the base plate 1 and is suitable for promotion and practical use.

[0052] Furthermore, a plurality of lower magnet blocks 27 are provided on the upper surface of the counterweight plate 2, and a plurality of upper magnet blocks 28 are provided on the bottom of the base plate 1. The lower magnet blocks 27 and the upper magnet blocks 28 are magnetically attracted to each other, and an anti-slip pad 29 is fixedly connected to the bottom of the counterweight plate 2.

[0053] As can be seen from the above description, when the quartz tube 5 is rotated to a different position, the upper magnet block 28 will be attracted to the corresponding lower magnet block 27 , so that the operator can check the solution in the quartz tube 5 .

[0054] Example 1

[0055] Reference Figures 1-4 A device for photodegradation of PAHs in a simulated solution comprises a base plate 1 and a counterweight plate 2. The design of the counterweight plate 2 ensures the stability of the photodegradation of PAHs in the simulated aqueous solution. A shell 3 is fixed to the upper surface of the base plate 1 by bolts. A transparent cylinder 4 is provided on the upper surface of the shell 3. A lamp post 7 is provided in the transparent cylinder 4. A plurality of quartz tubes 5 are provided on the upper surface of the shell 3. A top plug 12 is provided on the top of the quartz tube 5. A ball head column 1201 is integrally formed on the bottom of the top plug 12. The ball head column 1201 is plugged into the support ring 504. A fixed sleeve is provided on one side of the circumference of the top plug 12. A sealing cylinder 1202 and an anti-slip ring 1203 are provided. The sealing cylinder 1202 and the anti-slip ring 1203 are in contact with the inner wall of the quartz tube 5, and the sealing cylinder 1202 is in contact with the support ring 504. The setting of the sealing cylinder 1202 can ensure the sealing between the top plug 12 and the quartz tube 5, thereby ensuring the accuracy of the photodegradation test of the test object in the quartz tube 5. At the same time, the setting of the anti-slip ring 1203 increases the damping between the top plug 12 and the quartz tube 5, thereby preventing the top plug 12 from falling off the quartz tube 5 when the operator touches it during the photodegradation test, thereby ensuring the progress of the photodegradation test.

[0056] Furthermore, a magnetic stirrer 6 is provided on the inner wall of the bottom of the quartz tube 5, a curved cylinder 501 is integrally formed on the circumferential inner wall of the quartz tube 5, a liquid outlet pipe 502 is integrally formed on the circumferential outer side of the quartz tube 5, the liquid outlet pipe 502 is connected to the quartz tube 5, and a side plug 503 is sealed and plugged into one end of the liquid outlet pipe 502, and a support ring 504 is integrally formed on the circumferential inner wall of the quartz tube 5. After the test substance in the quartz tube 5 is degraded, the operator can first remove the side plug 503, and the degraded test substance in the quartz tube 5 flows out from the liquid outlet pipe 502, and the operator can test it to check the test results of photodegradation.

[0057] Furthermore, a motor is fixed to the top inner wall of the shell 3 by bolts, and one end of the motor output shaft is keyed to a driving gear 8. A plurality of rotating shafts 9 are rotatably connected to the bottom inner wall of the shell 3. A driven gear 11 is keyed to one side of the circumference of the rotating shaft 9, and a pad 10 is provided at the top of the rotating shaft 9. Two connecting magnetic blocks are embedded in the top of the pad 10, and the suction forces on the upper surfaces of the two connecting magnetic blocks are opposite. The two connecting magnetic blocks are respectively adsorbed with the corresponding magnetic stirring bars 6, and the driving gear 8 is meshed with the driven gear 11. Through the design of the meshing of the driving gear 8 and the driven gear 11, the rotating shaft 9 is driven to rotate, and then the pad 10 is driven to rotate. Since the connecting magnetic blocks on the pad 10 are adsorbed with the magnetic stirring bar 6, the magnetic stirring bar 6 is driven to rotate, thereby stirring and mixing the solution in the quartz tube 5 to ensure the uniformity of mixing of the test substances in the quartz tube 5, to ensure the effect of the photodegradation test, and to improve the use of the photodegradation equipment of PAHs in the simulated solution.

[0058] Furthermore, a transparent protective cover 13 is provided on the upper surface of the shell 3, and a limiting ring 14 is provided on the circumferential inner wall of the transparent protective cover 13. A limiting plate 15 is sleeved on the circumferential outer side of the quartz tube 5, and a ball head rod 16 is inserted into the bottom of the limiting plate 15. The ball head rod 16 passes through the limiting ring 14, and the limiting plate 15 contacts the limiting ring 14. A hollow plate 17 is provided in the transparent tube 4, and a circulation pipe 18 is provided in the transparent tube 4. The two ends of the circulation pipe 18 are respectively connected with a water inlet pipe 19 and a water outlet pipe 20. Through the design of the water inlet pipe 19, condensed water can be injected through the water inlet pipe 19, thereby cooling the lamp post 7 for long-term operation to ensure the normal use of the lamp post 7.

[0059] Furthermore, a sealing plug 21 is inserted into the top of the transparent tube 4, a wire fixing plug 22 is inserted into the top of the sealing plug 21, a bearing 23 is embedded in the upper surface of the counterweight plate 2, and a support column 24 is fixed to the bottom of the base plate 1 by bolts, and the support column 24 is fixedly connected to the bearing 23. Under the action of the bearing 23 and the support column 24, the shell 3 and the quartz tube 5 thereon can be rotated to check the photodegradation conditions in the quartz tube 5 at different positions, which has good practicality. A protective tube 25 is provided on the outer circumference of the base plate 1, and the inner circumference of the protective tube 25 is sleeved with the outer circumference of the counterweight plate 2.

[0060] Working principle of this embodiment: When in use, when conducting a photodegradation experiment of PAHs in a simulated aqueous solution, the operator first takes out multiple quartz tubes 5 respectively, opens the top plug 12, injects methanol into the quartz tube 5 to prepare the mother liquor, and then injects pure water to dilute it. At this time, when the pH of the diluted methanol mother liquor solution is 6.5, HCl is added to different quartz tubes 5 to adjust the pH in the quartz tube 5 to 2 or 4, and then FeCl3 is added to control the Fe3+ concentration, and then oxalic acid is added to simulate the effect of organic acid, and then the top plug 12 is covered on the quartz tube 5. The operator holds the quartz tube 5 and plugs the ball head rod 16 and the quartz tube 5 with the limit ring 14 until the quartz tube 5 is The bottom contacts the upper surface of the shell 3. At this time, the motor is started, and the motor drives the driving gear 8 and the driven gear 11 to engage, thereby driving the rotating shaft 9 to rotate, and then driving the pad 10 to rotate. Since the connecting magnetic block on the pad 10 is adsorbed with the magnetic stirring bar 6, the magnetic stirring bar 6 is then driven to rotate, thereby stirring and mixing the solution in the quartz tube 5. Subsequently, the lamp post 7 is started to photodegrade the HCl, FeCl3 and oxalic acid contained in the potassium solution in the quartz tube 5. At the same time, condensed water is injected through the water inlet pipe 19 and circulated into the circulation pipe 18 to cool the long-term operation of the lamp post 7, and then flows out from the water outlet pipe 20, completing the experiment of simulating the photodegradation of PAHs in the aqueous solution.

[0061] Example 2

[0062] Reference Figure 5-Figure 6 A device for photodegradation of PAHs in a simulated solution includes a base plate 1 having a plurality of universal balls 26 fixed to the bottom by bolts. The design of the universal balls 26 can support the rotation of the shell 3 to ensure its stable rotation. The bottom end of the universal balls 26 is in contact with the counterweight plate 2. The upper surface of the counterweight plate 2 is provided with a plurality of lower magnet blocks 27. The bottom of the base plate 1 is provided with a plurality of upper magnet blocks 28. The lower magnet blocks 27 and the upper magnet blocks 28 are magnetically attracted to each other. When rotating to the position of different quartz tubes 5, the upper magnet blocks 28 will be attracted to the corresponding lower magnet blocks 27, thereby facilitating the operator to check the solution in the quartz tube 5. The stability is good, and a non-slip pad 29 is bonded to the bottom of the counterweight plate 2.

[0063] The working principle of this embodiment is as follows: when in use, the operator can observe the photodegradation of the solution in the quartz tube 5 at different positions when rotating the shell 3. When the shell 3 rotates, the universal ball 26 supports the rotation of the shell 3 to ensure its stable rotation. When rotating to the position of different quartz tubes 5, the upper magnet block 28 will be attracted to the corresponding lower magnet block 27, so as to facilitate the operator to check the solution in the quartz tube 5. At the same time, the protective tube 25 is used to protect the counterweight plate 2 and the base plate 1.

[0064] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0065] In the description herein, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A device for photodegradation of PAHs in a simulated solution, comprising a base, characterized in that: The upper surface of the base is fixedly connected with a shell (3), and a plurality of quartz tubes (5) are arranged on the upper surface of the shell (3). The top of the quartz tube (5) is sealed with a sealing assembly. A magnetic stirrer (6) is arranged inside the quartz tube (5), and the magnetic forces at both ends of the magnetic stirrer (6) are opposite. A power output assembly is arranged inside the shell (3), and the output end of the power output assembly is transmission-connected with a pad (10) corresponding to the bottom end of each quartz tube (5). Two connecting magnetic blocks (30) are fixedly connected to the top of the pad (10), and the suction forces on the upper surfaces of the two connecting magnetic blocks (30) are opposite. The two connecting magnetic blocks (30) are respectively adsorbed to the two ends of the magnetic stirrer (6) in the corresponding quartz tube (5); The sealing assembly comprises a top plug (12) arranged at the top of the quartz tube (5), the bottom of the top plug (12) is integrally formed with a ball head column (1201), a support ring (504) is fixed inside the quartz tube (5), and the ball head column (1201) is plugged into the support ring (504); the outer side of the top plug (12) inserted into one end of the quartz tube (5) is fixedly sleeved with a sealing tube (1202) and an anti-slip ring (1203), the ends of the sealing tube (1202) and the support ring (504) are in contact, and the outer walls of the sealing tube (1202) and the anti-slip ring (1203) are in contact with the inner wall of the quartz tube (5); The quartz tube (5) has an angular cylinder (501) integrally formed on the inner circumferential wall, and a liquid outlet pipe (502) is integrally formed on the outer circumferential wall of the quartz tube (5). The liquid outlet pipe (502) is connected to the quartz tube (5), and a side plug (503) is sealed and plugged at the outer end of the liquid outlet pipe (502); The upper surface of the shell (3) is provided with a transparent protective cover (13), the inner wall of the transparent protective cover (13) is fitted and fixed with a limiting ring (14), the outer shell of the quartz tube (5) is provided with a limiting plate (15), the bottom of the limiting plate (15) is plugged with a ball head rod (16), the bottom end of the ball head rod (16) passes through the limiting ring (14), and the limiting plate (15) is in contact with the limiting ring (14); A transparent tube (4) is arranged on the upper surface of the shell (3), a sealing plug (21) is inserted at the top end of the transparent tube (4), a wire fixing plug (22) is inserted at the top end of the sealing plug (21), a lamp post (7) is arranged inside the transparent tube (4), a hollow plate (17) is arranged at the top end of the lamp post (7), and the hollow plate (17) is adapted to the inner diameter of the transparent tube (4); A circulation pipe (18) is arranged in the transparent cylinder (4) at the top of the hollow plate (17), and a water inlet pipe (19) and a water outlet pipe (20) are respectively inserted at both ends of the circulation pipe (18).

2. The device for photodegradation of PAHs in a simulated solution according to claim 1, characterized in that: The power output assembly comprises a motor and a rotating shaft (9) fixedly connected to the bottom end of each cushion block (10); one end of the motor output shaft is fixedly connected to a driving gear (8); the rotating shaft (9) is rotatably arranged in the housing (3); and a driven gear (11) meshing with the driving gear (8) is fixedly sleeved outside the rotating shaft (9).

3. The device for photodegradation of PAHs in a simulated solution according to claim 1, characterized in that: The base comprises a counterweight plate (2) and a base plate (1) rotatably connected to the upper end of the counterweight plate (2); a protective tube (25) is sleeved on the outer side of the base plate (1), and the inner wall of the protective tube (25) is arranged to fit the outer edge of the counterweight plate (2).

4. The device for photodegradation of PAHs in a simulated solution according to claim 3, characterized in that: A plurality of universal balls (26) are fixedly connected to the bottom of the base plate (1), and the bottom ends of the universal balls (26) are in contact with the counterweight plate (2).

5. The device for photodegradation of PAHs in a simulated solution according to claim 3, characterized in that: The upper surface of the counterweight plate (2) is provided with a plurality of lower magnet blocks (27), the bottom of the base plate (1) is provided with a plurality of upper magnet blocks (28), the lower magnet blocks (27) and the upper magnet blocks (28) are magnetically attracted to each other, and an anti-slip pad (29) is fixedly connected to the bottom of the counterweight plate (2).

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