A chemical laboratory air purification device

Abstract

The present invention belongs to the technical field of liquid purification of air impurities, and in particular relates to an air purification device for a chemical laboratory, including a mobile rack and a PLC controller provided on the lower side wall of the mobile rack. It further includes: a purification component provided on the upper side wall of the mobile rack for purifying harmful substances in the gas conveyed by the conveying component; a control component provided on the upper surface of the purification component. In the present invention, after using ionic liquid to absorb various volatile organic solvents in the air, various organic substances in the ionic liquid can be heated and evaporated respectively according to the different boiling points of various organic substances, and then condensed, so that the ionic liquid always maintains good adsorption performance, avoiding the problem that after long-term use of the ionic liquid, the adsorption performance decreases, causing some organic solvents not to be treated and still volatilize into the air and be inhaled by the human body, thus endangering human health.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid purification of air impurities, and in particular relates to an air purification device for a chemical laboratory. Background Art

[0002] A chemical laboratory is an important place for conducting research and experiments related to chemical engineering. When corresponding experiments are carried out in a chemical laboratory, it is easy to emit some harmful substances into the air. Therefore, when conducting experiments in a chemical laboratory, an air purification device is needed to purify the emitted harmful substances. For example, a chemical laboratory air purification device proposed in the patent publication number CN207126276U can, on the premise of ensuring that the air pump will not be damaged by excessive air pressure, slow down the air flow speed as much as possible, and extend the service life of the air purification device.

[0003] When conducting experiments in a chemical laboratory, the reagents or reaction systems are often heated during the experiment process. The increase in temperature will intensify the thermal movement of molecules, causing the reagent molecules to be more likely to break away from the restraint of the liquid or solid surface and then volatilize into the air. Common volatile substances include organic solvents such as ethanol, acetone, benzene, and toluene. Usually, the purification device will use ionic liquids to absorb these organic solvents to purify the air. However, as the concentration of the organic solvents absorbed by the ionic liquid continuously increases, its absorption performance will gradually decline. At this time, it is necessary to replace the ionic liquid in the purification device. Moreover, since the types of organic solvents contained in the replaced ionic liquid are different, additional purification treatment by the experimental personnel is required, which undoubtedly increases the workload of the experimental personnel. In addition, when the absorption performance of the ionic liquid in the purification device declines and the experimental personnel fail to replace it in time, the organic solvents that have not been fully treated will still be emitted into the air and inhaled by the human body, thus endangering human health.

[0004] Therefore, an air purification device for a chemical laboratory is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an air purification device for a chemical laboratory in view of the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: An air purification device for a chemical laboratory includes a mobile rack and a PLC controller arranged on the lower side wall of the mobile rack, and further includes:

[0007] A purification component, arranged on the upper side wall of the mobile rack, for purifying harmful substances in the gas conveyed by the conveying component;

[0008] A control component, arranged on the upper surface of the purification component, for heating various organic substances in the ionic liquid in the purification component respectively;

[0009] A condensation component is arranged on the right side of the purification component to condense various heated organic substances.

[0010] A recovery component is arranged below the moving frame to classify and recover various condensed organic substances.

[0011] Preferably, the purification component includes a working box and a purification box. The working box is fixedly connected to the upper side wall of the moving frame. The purification box is fixedly connected to the lower inner wall of the working box through a bracket. The purification box is filled with ionic liquid. An ultrasonic vibrating rod is fixedly connected to the upper inner wall of the purification box. A jacket is fixedly sleeved on the outer wall of the purification box. Multiple heating wires are fixedly connected to the inner wall of the jacket. An exhaust pipe and a liquid injection pipe are fixedly communicated with the upper side wall of the purification box. The ionic liquid is conveyed into the purification box through the liquid injection pipe. The upper end of the exhaust pipe extends out of the working box. A control valve is arranged in the exhaust pipe. A discharge pipe is communicated with the right side wall of the purification box, which can discharge the ionic liquid after long-term use. An exhaust serpentine pipe is fixedly connected to the lower side wall of the purification box. A plurality of exhaust heads are communicated with the upper side wall of the exhaust serpentine pipe. A one-way valve is arranged in the exhaust serpentine pipe.

[0012] Preferably, the conveying component includes an air pump and a serpentine hose. The air pump is fixedly connected to the left inner wall of the working box. The lower end of the serpentine hose is fixedly communicated with the air inlet end of the air pump. A linear motor is fixedly connected to the upper side wall of the working box. The output end of the linear motor is fixedly connected with a moving rod. The upper end of the moving rod is fixedly connected with a suction hood. The upper end of the serpentine hose is fixedly communicated with the upper side wall of the suction hood.

[0013] Preferably, the control component includes a control box and a short pipe. The control box is fixedly connected to the upper side wall of the working box. The control box is communicated with the pipe wall of the exhaust pipe through the short pipe. A magnetic control valve is arranged in the short pipe. A microporous plate is inlaid on the upper side wall of the control box. A retaining ring is fixedly connected to the inner wall of the control box. A piston plate is fixedly connected to the left inner wall of the control box through a spring. The piston plate is located on the left side of the retaining ring. The microporous plate is located on the right side of the retaining ring. An air pressure hole is opened on the left side wall of the control box. An extrusion switch is fixedly connected to the upper inner wall of the control box. The extrusion switch is located on the left side of the piston plate. A connecting frame is fixedly connected to the left side wall of the piston plate through a bracket. A conical block is rotatably connected to the inner wall of the connecting frame. The tip of the conical block on the side close to the connecting block is an arc structure. A conductive block is inlaid on the upper side wall of the conical block. Four conductive plates are inlaid on the upper inner wall of the working box. The conductive plates are electrically connected to the PLC controller.

[0014] Preferably, the condensation assembly includes a condensation box and a spiral tube. The condensation box is fixedly connected to the upper side wall of the movable frame through a bracket. The spiral tube is located inside the condensation box. The upper end of the spiral tube passes through the condensation box and communicates with the pipe wall of the exhaust pipe. The spiral tube is provided with a solenoid valve. The lower end of the spiral tube passes through the movable frame and is fixedly communicated with a telescopic tube. The lower end of the telescopic tube is fixedly communicated with an insertion tube. A micro electric push rod is fixedly connected to the lower side wall of the movable frame. The movable end of the micro electric push rod is fixedly connected to the insertion tube through a bracket. A water tank is fixedly connected to the right side wall of the movable frame. A water pump is fixedly connected to the upper side wall of the water tank. The water inlet end of the water pump communicates with the side wall of the water tank. The water outlet end of the water pump communicates with the right side wall of the condensation box. A return pipe is communicated with the left side wall of the condensation box. The lower end of the return pipe communicates with the upper side wall of the water tank. A plurality of semiconductor refrigeration plates are inserted into the right side wall of the water tank. The refrigeration end of the semiconductor refrigeration plate is located inside the water tank. The heat release end of the semiconductor refrigeration plate extends out of the water tank.

[0015] Preferably, the recovery assembly includes a rotating plate and a control motor. A placement plate is fixedly connected to the inner wall of the movable frame. The control motor is fixedly connected to the lower side wall of the placement plate. The output end of the control motor passes through the side wall of the placement plate and is fixedly connected to the rotating plate. Four placement cylinders are fixedly connected to the upper side wall of the rotating plate. Recovery bottles are placed inside the placement cylinders. A rubber plug is inserted into the inlet of the recovery bottle. The control motor is electrically connected to the PLC controller.

[0016] Preferably, a blower is fixedly connected to the right side wall of the water tank. The blower is located above the heat dissipation end of the semiconductor refrigeration plate.

[0017] Preferably, a positioning electric push rod is fixedly connected to the side wall of the placement plate. A positioning pin is fixedly connected to the movable end of the positioning electric push rod. A positioning groove located directly below the recovery bottle is formed in the lower side wall of the rotating plate. A guide cover is arranged outside the positioning groove.

[0018] Compared with the existing technology, the advantages of a chemical laboratory air purification device are as follows:

[0019] 1. By setting the purification assembly and the conveying assembly, when the purification device is used to absorb and process the volatile organic solvents in the air, the adsorption range of the purification device can be expanded, and the volatile organic solvents in the air can be fully absorbed by the ionic liquid, reducing the pollutants in the air of the laboratory.

[0020] 2. By means of the provided control component and condensation component, after using ionic liquid to absorb various volatile organic solvents in the air, various organic substances in the ionic liquid can be heated and evaporated respectively according to their different boiling points, and then subjected to condensation treatment, so that the ionic liquid always maintains good adsorption performance, avoiding the problem that after long-term use of the ionic liquid, the adsorption performance decreases, resulting in some organic solvents not being treated and still volatilizing into the air and being inhaled by the human body, thus endangering human health.

[0021] 3. By means of the provided ultrasonic vibration rod, after the gas containing pollutants is transported to the purification device, the cavitation effect generated by ultrasonic waves in the liquid forms local high temperature, high pressure and strong shock waves, thereby generating micro-nano bubbles. The rising speed of micro-nano bubbles in water is extremely slow, and they can stay in the liquid for a long time, increasing the contact time with pollutants. At the same time, when micro-nano bubbles burst, they will generate local high temperature, high pressure and strongly oxidizing substances such as hydroxyl radicals, which helps to decompose organic substances and kill microorganisms.

[0022] 4. By means of the provided recovery component, after the condensation treatment of various organic solvents, the condensed organic substances can be classified and recovered, facilitating subsequent reuse or other treatments of the organic substances by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a chemical laboratory air purification device provided by the present invention;

[0024] Figure 2 is a schematic structural diagram of a conveying component in a chemical laboratory air purification device provided by the present invention;

[0025] Figure 3 is a schematic structural diagram of a control component in a chemical laboratory air purification device provided by the present invention;

[0026] Figure 4 is a schematic diagram of the connection mode of a conical block in a chemical laboratory air purification device provided by the present invention;

[0027] Figure 5 is a schematic structural diagram of a condensation component in a chemical laboratory air purification device provided by the present invention;

[0028] Figure 6 is a schematic diagram of the positional relationship between a positioning pin and a positioning groove in a chemical laboratory air purification device provided by the present invention;

[0029] Figure 7 is a top view of an exhaust serpentine pipe in a chemical laboratory air purification device provided by the present invention.

[0030] In the figure: 1 moving frame, 2 PLC controller, 3 purification component, 301 working box, 302 purification box, 4 ultrasonic vibrating rod, 5 jacket, 6 heating wire, 7 control valve, 8 discharge pipe, 9 exhaust serpentine pipe, 10 exhaust head, 11 check valve, 12 conveying component, 121 air pump, 122 serpentine hose, 13 linear motor, 14 moving rod, 15 suction hood, 16 control component, 161 control box, 162 short pipe, 17 magnetically controlled valve, 18 microporous plate, 19 retaining ring, 20 piston plate, 21 air pressure hole, 22 extrusion switch, 23 connecting frame, 24 conical block, 25 conductive block, 26 conductive plate, 27 condensation component, 271 condensation box, 272 spiral pipe, 28 solenoid valve, 29 telescopic pipe, 30 insertion pipe, 31 micro electric push rod, 32 water tank, 33 water pump, 34 return pipe, 35 semiconductor refrigeration plate, 36 recovery component, 361 rotating plate, 362 control motor, 37 placement plate, 38 placement cylinder, 39 recovery bottle, 40 rubber stopper, 41 fan, 42 positioning electric push rod, 43 positioning pin, 44 positioning groove, 45 guiding cover, 46 exhaust pipe, 47 liquid injection pipe. Detailed implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] As Figures 1 - 7 shown, a chemical laboratory air purification device includes a moving frame 1 and a PLC controller 2 arranged on the lower side wall of the moving frame 1, and further includes:

[0033] A purification component 3, arranged on the upper side wall of the moving frame 1, for purifying harmful substances in the gas conveyed by the conveying component 12;

[0034] A control component 16, arranged on the upper surface of the purification component 3, for heating various organic substances in the ionic liquid in the purification component 3 respectively;

[0035] A condensation component 27, arranged on the right side of the purification component 3, for condensing the heated various organic substances;

[0036] A recovery component 36, arranged under the moving frame 1, for classifying and recovering the condensed various organic substances.

[0037] The purification component 3 includes a working box 301 and a purification box 302. The working box 301 is fixedly connected to the upper side wall of the moving frame 1. The purification box 302 is fixedly connected to the lower inner wall of the working box 301 through a bracket. The purification box 302 is filled with ionic liquid. An ultrasonic vibrator 4 is fixedly connected to the upper inner wall of the purification box 302. A jacket 5 is fixedly sleeved on the outer wall of the purification box 302. A plurality of heating wires 6 are fixedly connected to the inner wall of the jacket 5. An exhaust pipe 46 and a liquid injection pipe 47 are fixedly communicated with the upper side wall of the purification box 302. The ionic liquid is conveyed into the purification box 302 through the liquid injection pipe 47. The upper end of the exhaust pipe 46 extends out of the working box 301. A control valve 7 is arranged in the exhaust pipe 46. A discharge pipe 8 is communicated with the right side wall of the purification box 302, which can discharge the ionic liquid after long-term use. An exhaust serpentine pipe 9 is fixedly connected to the lower side wall of the purification box 302. A plurality of exhaust heads 10 are communicated with the upper side wall of the exhaust serpentine pipe 9. A check valve 11 is arranged in the exhaust serpentine pipe 9. The conveying component 12 includes an air pump 121 and a serpentine hose 122. The air pump 121 is fixedly connected to the left inner wall of the working box 301. The lower end of the serpentine hose 122 is fixedly communicated with the air inlet end of the air pump 121. A linear motor 13 is fixedly connected to the upper side wall of the working box 301. The output end of the linear motor 13 is fixedly connected to a moving rod 14. The upper end of the moving rod 14 is fixedly connected to a suction hood 15. The upper end of the serpentine hose 122 is fixedly communicated with the upper side wall of the suction hood 15. When using the purification device to absorb and process the volatile organic solvents in the air, the adsorption range of the purification device can be expanded, and the volatile organic solvents in the air can be fully absorbed by the ionic liquid, reducing the pollutants in the air of the laboratory.

[0038] The control component 16 includes a control box 161 and a short pipe 162. The control box 161 is fixedly connected to the upper side wall of the working box 301. The control box 161 is communicated with the pipe wall of the exhaust pipe 46 through the short pipe 162. A magnetron valve 17 is arranged in the short pipe 162. A microporous plate 18 is embedded in the upper side wall of the control box 161. A retaining ring 19 is fixedly connected to the inner wall of the control box 161. A piston plate 20 is fixedly connected to the left inner wall of the control box 161 through a spring. The piston plate 20 is located on the left side of the retaining ring 19. The microporous plate 18 is located on the right side of the retaining ring 19. An air pressure hole 21 is opened on the left side wall of the control box 161. An extrusion switch 22 is fixedly connected to the upper inner wall of the control box 161. The extrusion switch 22 is located on the left side of the piston plate 20. A connecting frame 23 is fixedly connected to the left side wall of the piston plate 20 through a bracket. A tapered block 24 is rotatably connected to the inner wall of the connecting frame 23. The tip of the tapered block 24 on the side close to the connecting block is an arc structure. A conductive block 25 is embedded in the upper side wall of the tapered block 24. Four conductive plates 26 are embedded in the upper side inner wall of the working box 301. The conductive plates 26 are electrically connected to the PLC controller 2. The condensation component 27 includes a condensation box 271 and a spiral pipe 272. The condensation box 271 is fixedly connected to the upper side wall of the moving frame 1 through a bracket. The spiral pipe 272 is located inside the condensation box 271. The upper end of the spiral pipe 272 passes through the condensation box 271 and is communicated with the pipe wall of the exhaust pipe 46. The spiral pipe 272 is provided with a solenoid valve 28. The lower end of the spiral pipe 272 passes through the moving frame 1 and is fixedly communicated with a telescopic pipe 29. The lower end of the telescopic pipe 29 is fixedly communicated with an insertion pipe 30. A micro electric push rod 31 is fixedly connected to the lower side wall of the moving frame 1. The moving end of the micro electric push rod 31 is fixedly connected to the insertion pipe 30 through a bracket. A water tank 32 is fixedly connected to the right side wall of the moving frame 1. A water pump 33 is fixedly connected to the upper side wall of the water tank 32. The water inlet end of the water pump 33 is communicated with the side wall of the water tank 32. The water outlet end of the water pump 33 is communicated with the right side wall of the condensation box 271. A return pipe 34 is communicated with the left side wall of the condensation box 271. The lower end of the return pipe 34 is communicated with the upper side wall of the water tank 32. A plurality of semiconductor refrigeration plates 35 are inserted into the right side wall of the water tank 32. The refrigeration ends of the semiconductor refrigeration plates 35 are located inside the water tank 32. The heat release ends of the semiconductor refrigeration plates 35 extend out of the water tank 32. After using ionic liquid to absorb various volatile organic solvents in the air, according to the different boiling points of various organic substances, the various organic substances in the ionic liquid can be heated and evaporated respectively, and then condensed, so that the ionic liquid always maintains good adsorption performance, avoiding the problem that after long-term use of the ionic liquid, the adsorption performance decreases, resulting in some organic solvents not being treated and still volatilizing into the air and being inhaled by the human body, thus endangering human health.

[0039] The recovery component 36 includes a rotating plate 361 and a control motor 362. The inner wall of the moving frame 1 is fixedly connected with a placing plate 37. The control motor 362 is fixedly connected to the lower side wall of the placing plate 37. The output end of the control motor 362 passes through the side wall of the placing plate 37 and is fixedly connected to the rotating plate 361. Four placing cylinders 38 are fixedly connected to the upper side wall of the rotating plate 361. Recovery bottles 39 are placed in the placing cylinders 38. A rubber plug 40 is inserted at the inlet of the recovery bottle 39. The control motor 362 is electrically connected to the PLC controller 2. After the condensation treatment of various organic solvents, the condensed organic matters can be classified and recovered, which is convenient for the operator to reuse or perform other treatments on the organic matters subsequently.

[0040] A blower 41 is fixedly connected to the right side wall of the water tank 32. The blower 41 is located above the heat dissipation end of the semiconductor refrigeration plate 35, which can quickly dissipate the heat discharged from the heat dissipation end of the semiconductor refrigeration plate 35.

[0041] A positioning electric push rod 42 is fixedly connected to the side wall of the placing plate 37. The moving end of the positioning electric push rod 42 is fixedly connected with a positioning pin 43. A positioning groove 44 located directly below the recovery bottle 39 is formed in the lower side wall of the rotating plate 361. A guide cover 45 is arranged outside the positioning groove 44, which can fix the position of the rotating plate 361.

[0042] The operating principle of the present invention is described as follows: Move the purification device to the area to be treated in the chemical laboratory. Then, send an electrical signal to the PLC controller 2 through the control button (the control button is arranged on the rear side wall of the moving frame 1 and not shown in the figure). After receiving the electrical signal, the PLC controller 2 first controls the solenoid valve 17 to be energized and opened. Then, the PLC controller 2 controls the air pump 121 and the linear motor 13 to work simultaneously. The linear motor 13 drives the suction hood 15 to move back and forth in the adsorption area through the moving rod 14. At the same time, the air pump 121 will transport the gas in the adsorption area to the exhaust serpentine pipe 9 through the suction hood 15 and discharge the gas through the exhaust head 10. While the air pump 121 is working, the PLC controller 2 will control the ultrasonic vibration rod 4 to work simultaneously. Utilize the cavitation effect generated by ultrasonic waves in the liquid to form local high temperature, high pressure and strong shock waves, thereby generating micro-nano bubbles. The rising speed of micro-nano bubbles in water is extremely slow, and they can stay in the liquid for a long time, increasing the contact time with pollutants. At the same time, when the micro-nano bubbles burst, they will generate local high temperature, high pressure and strongly oxidizing substances such as hydroxyl radicals, which helps to decompose organic substances and kill microorganisms. The recovered organic solvent in the gas will contact the ionic liquid. The ionic liquid is composed of anions and cations, and its charged part can generate electrostatic attraction with the polar groups in the organic molecule, so that the ionic liquid can be used to absorb the organic substance. Other gases in the air are discharged through the exhaust pipe 46. Since the control valve 7 in the exhaust pipe 46 is in a closed state at this time, the gas will be transported to the control box 161 through the short pipe 162, increasing the air pressure in the space on the right side of the piston plate 20. Under the action of the atmospheric pressure, the piston plate 20 will drive the conical block 24 to move to the left. When the conical block 24 moves to the left, the conical block 24 will rotate clockwise by a certain angle, causing the conductive block 25 to rotate to the lower side. When the piston plate 20 drives the conical block 24 to move to the left and squeeze the squeeze switch 22, the squeeze switch 22 will send an electrical signal to the PLC controller 2. After receiving the electrical signal, the PLC controller 2 will control the solenoid valve 17 to close and control the control valve 7 to open, so that the gas is discharged through the exhaust pipe 46;

[0043] After the magnetic control valve 17 is closed, the gas inside the inner wall of the control box 161 will slowly discharge through the microporous plate 18. Driven by the elastic force of the spring, the piston plate 20 will drive the conical block 24 to move to the right. Referring to the above principle, when the conical block 24 moves to the right, the conical block 24 will rotate counterclockwise by a certain angle, so that the conductive block 25 fits against the upper inner wall of the control box 161. Since the exhaust speed of the microporous plate 18 is very slow, the moving speed of the piston plate 20 to the right is also very slow. After the PLC controller 2 controls the air pump 121 and the linear motor 13 to stop working for five minutes, the piston plate 20 will drive the conical block 24 to contact the leftmost conductive plate 26. The leftmost conductive plate 26 is electrically connected to the PLC controller 2. After receiving the electrical signal transmitted from the leftmost conductive plate 26, the PLC controller 2 first controls the control valve 7 to close and controls the solenoid valve 28 to open. At the same time, it controls the micro electric push rod 31 to drive the cannula 30 to move downward, so that the cannula 30 is inserted into the recovery bottle 39 directly below (when the purification device is working, the operator will remove the rubber stopper 40 and reinsert the rubber stopper 40 into the recovery bottle 39 after the work is completed). Then, the PLC controller 2 controls multiple heating wires 6 to work, and uses the heating wires 6 to heat the ionic liquid in the purification box 302. There is a temperature sensor in the ionic liquid (the temperature sensor is not shown in the figure). Through the set temperature sensor, the PLC controller 2 controls the heating wires 6 to heat the ionic liquid to 56 °C (for example, the organic volatile substances in the air are acetone, ethanol, benzene, and toluene, and their boiling points are 56 °C, 78 °C, 80 °C, and 110 °C respectively, and the ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate, and the boiling point is about 340 °C). When the ionic liquid is heated to 56 °C, acetone will first boil and evaporate. The evaporated acetone gas will enter the spiral tube 272. While the heating wires 6 are working, the PLC controller 2 will also control the semiconductor refrigeration plate 35 and the water pump 33 to work simultaneously. The semiconductor refrigeration plate 35 cools the liquid in the water tank 32, and the cooled water is transported to the condensation box 271 through the water pump 33, and then retransported to the water tank 32 through the return pipe 34. When the cold water is transported to the refrigeration box, it will contact the steam of the acetone solvent in the spiral tube 272, so that the whole acetone solvent condenses and liquefies. The liquefied acetone solvent is transported to the corresponding recovery bottle 39 below through the telescopic tube 29 and the cannula 30;

[0044] Referring to the above principle, the speed at which the piston plate 20 drives the conductive block 25 to move to the right is very slow, and the contact time between the conductive block 25 and the left conductive plate 26 is very long. This will cause all the acetone in the ionic liquid to evaporate and be transported to the storage in the recovery bottle 39. When the conductive block 25 is about to separate from the leftmost conductive plate 26, the acetone solvent will no longer drip downward in the intubation 30. When the conductive block 25 separates from the leftmost conductive plate 26, it will contact the second conductive plate 26 from the left, causing the second conductive plate 26 from the left to send an electrical signal to the PLC controller 2. After receiving this electrical signal, the PLC controller 2 first controls the micro electric push rod 31 to drive the intubation 30 to move upward and separate from the recovery bottle 39. Then it controls the positioning electric push rod 42 to drive the positioning pin 43 to disengage from the positioning groove 44. Then the PLC controller 2 drives the control motor 362 to operate, and drives the rotating plate 361 and the four recovery bottles 39 to rotate simultaneously through the control motor 362, so that the corresponding recovery bottle 39 rotates and moves to directly below the intubation 30. Then the PLC controller 2 controls the positioning electric push rod 42 to drive the positioning pin 43 to re-insert into the positioning groove 44 to fix the positions of the rotating plate 361 and the recovery bottle 39. Then it controls the micro electric push rod 31 to drive the intubation 30 to insert into another corresponding recovery bottle 39. Then the PLC controller 2 controls the heating wire 6 to work at 78 °C. Referring to the above principle, the ethanol in the ionic liquid is transported to another recovery bottle 39 for storage, and other organic substances in the ionic liquid can be processed subsequently.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chemical laboratory air purification device, comprising a mobile frame (1) and a PLC controller (2) arranged on the lower side wall of the mobile frame (1), characterized in that: Also includes: A purification component (3) is arranged on the upper side wall of the movable frame (1) and purifies harmful substances in the gas transported by the transport component (12); A control component (16) is arranged on the upper surface of the purification component (3) and heats various organic substances in the ionic liquid in the purification component (3); A condensation component (27) is arranged on the right side of the purification component (3) and performs condensation treatment on various organic substances after heating; The recovery component (36) is arranged below the mobile rack (1) and is used to classify and recover various organic substances after condensation. The purification component (3) comprises a working box (301) and a purification box (302). The working box (301) is fixedly connected to the upper side wall of the mobile rack (1). The purification box (302) is fixedly connected to the lower inner wall of the working box (301) via a bracket. The purification box (302) is filled with ionic liquid. The upper inner wall of the purification box (302) is fixedly connected to an ultrasonic vibration rod (4). The outer wall of the purification box (302) is fixedly provided with a jacket (5). The inner wall of the jacket (5) is fixedly connected to a plurality of heating wires (6). The upper wall of the purification box (302) is fixedly connected to an exhaust pipe. The ionic liquid is transported into the purification box (302) through the injection pipe (47), the upper end of the exhaust pipe (46) extends out of the working box (301), the exhaust pipe (46) is provided with a control valve (7), the right side wall of the purification box (302) is connected to a discharge pipe (8), which can discharge the ionic liquid after long-term use, the lower side wall of the purification box (302) is fixedly connected to an exhaust serpentine pipe (9), the upper side wall of the exhaust serpentine pipe (9) is connected to a plurality of exhaust heads (10), the exhaust serpentine pipe (9) is provided with a one-way valve (11), and the transport component (12) includes an air pump (121) and a serpentine hose (122), the air pump (121) is fixedly connected to the working box (301), and the ionic liquid is transported into the purification box (302) through the injection pipe (47), the upper end of the exhaust pipe (46) extends out of the working box (301), the exhaust pipe (46) is provided with a control valve (7), the right side wall of the purification box (302) is connected to a discharge pipe (8), and the ionic liquid can be discharged after long-term use, the lower side wall of the purification box (302) is fixedly connected to an exhaust serpentine pipe (9), the upper side wall of the exhaust serpentine pipe (9) is connected to a plurality of exhaust heads (10), the exhaust serpentine pipe (9) is provided with a one-way valve (11), and the transport component (12) includes an air pump (121) and a serpentine hose (122), the air pump (121) is fixedly connected to the working box (301), and the serpentine hose (122) is provided with a control valve (7), and the exhaust serpentine pipe (121) is fixedly connected to the working box (301). The working box (301) is provided with a left inner wall, the lower end of the serpentine hose (122) is fixedly connected to the air inlet end of the air pump (121), the upper side wall of the working box (301) is fixedly connected to a linear motor (13), the output end of the linear motor (13) is fixedly connected to a moving rod (14), the upper end of the moving rod (14) is fixedly connected to an air suction hood (15), the upper end of the serpentine hose (122) is fixedly connected to the upper side wall of the air suction hood (15), the control assembly (16) comprises a control box (161) and a short tube (162), the control box (161) is fixedly connected to the upper side wall of the working box (301), the control box (161) is connected to the wall of the exhaust pipe (46) through the short tube (162), and the short tube (162) is connected to the exhaust pipe (46). A magnetic control valve (17) is arranged in the tube (162); a microporous plate (18) is inlaid on the upper side wall of the control box (161); a retaining ring (19) is fixedly connected to the inner wall of the control box (161); a piston plate (20) is fixedly connected to the left inner wall of the control box (161) via a spring; the piston plate (20) is located on the left side of the retaining ring (19); the microporous plate (18) is located on the right side of the retaining ring (19); a pneumatic hole (21) is opened on the left side wall of the control box (161); an extrusion switch (22) is fixedly connected to the upper inner wall of the control box (161); the extrusion switch (22) is located on the left side of the piston plate (20); and the left side wall of the piston plate (20) is fixedly connected to a connecting frame (23) via a bracket.The inner wall of the connection frame (23) is rotatably connected to a conical block (24); the tip of the conical block (24) close to the connection block is an arc structure; the upper side wall of the conical block (24) is inlaid with a conductive block (25); the upper inner wall of the working box (301) is inlaid with four conductive plates (26); the conductive plates (26) are electrically connected to the PLC controller (2); the condensation assembly (27) comprises a condensation box (271) and a spiral tube (272); the condensation box (271) is fixedly connected to the upper side wall of the mobile frame (1) via a bracket; the spiral tube (272) is located inside the condensation box (271); The upper end of the spiral tube (272) passes through the condensation box (271) and is connected to the wall of the exhaust pipe (46); the spiral tube (272) is provided with a solenoid valve (28); the lower end of the spiral tube (272) passes through the movable frame (1) and is fixedly connected to a telescopic tube (29); the lower end of the telescopic tube (29) is fixedly connected to a plug tube (30); a micro electric push rod (31) is fixedly connected to the lower side wall of the movable frame (1); the movable end of the micro electric push rod (31) is fixedly connected to the plug tube (30) via a bracket; the right side wall of the movable frame (1) is fixedly connected to a water tank (32); the water tank (32) A water pump (33) is fixedly connected to the upper side wall of the water tank (32), a water inlet end of the water pump (33) is in communication with the side wall of the water tank (32), a water outlet end of the water pump (33) is in communication with the right side wall of the condensing tank (271), a return pipe (34) is in communication with the left side wall of the condensing tank (271), a lower end of the return pipe (34) is in communication with the upper side wall of the water tank (32), a plurality of semiconductor refrigeration plates (35) are plugged into the right side wall of the water tank (32), a refrigeration end of the semiconductor refrigeration plate (35) is located in the water tank (32), a heat release end of the semiconductor refrigeration plate (35) extends out of the water tank (32), and the recovery component (36) comprises A rotating plate (361) and a control motor (362); the inner wall of the mobile frame (1) is fixedly connected to a placement plate (37); the control motor (362) is fixedly connected to the lower side wall of the placement plate (37); the output end of the control motor (362) passes through the side wall of the placement plate (37) and is fixedly connected to the rotating plate (361); four placement cylinders (38) are fixedly connected to the upper side wall of the rotating plate (361); recovery bottles (39) are placed in the placement cylinders (38); a rubber plug (40) is inserted at the inlet of the recovery bottle (39); and the control motor (362) is electrically connected to a PLC controller (2).

2. A chemical laboratory air purification device according to claim 1, characterized in that: A fan (41) is fixedly connected to the right side wall of the water tank (32), and the fan (41) is located above the heat dissipation end of the semiconductor refrigeration plate (35).

3. A chemical laboratory air purification device according to claim 2, characterized in that: A positioning electric push rod (42) is fixedly connected to the side wall of the placement plate (37), and a positioning pin (43) is fixedly connected to the movable end of the positioning electric push rod (42). A positioning groove (44) located directly below the recovery bottle (39) is formed on the lower side wall of the rotating plate (361), and a guide cover (45) is provided outside the positioning groove (44).

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