Air purification device for chemical laboratory

Abstract

The invention belongs to the technical field of liquid purification of air impurities, and particularly relates to a chemical laboratory air purification device which comprises a moving frame and a PLC arranged on the lower side wall of the moving frame, and further comprises a purification assembly arranged on the upper side wall of the moving frame and used for purifying harmful substances in gas conveyed by a conveying assembly; and the control assembly is arranged on the upper surface of the purification assembly. After the ionic liquid is used for absorbing various volatile organic solvents in the air, various organic matters in the ionic liquid can be heated and evaporated according to different boiling points of the various organic matters, and then are condensed, so that the ionic liquid always keeps relatively good adsorption performance, and the problem that the ionic liquid cannot be used for a long time after the ionic liquid is used is avoided. The adsorption performance is reduced, so that part of the organic solvent is not treated, is still volatilized into the air and is absorbed by a human body, and the human body health is harmed.

Description

Technical Field

[0001] The 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] Chemical laboratories are important places for conducting research and experiments related to chemical engineering. When conducting corresponding experiments, chemical laboratories are prone to emit some harmful substances into the air. Therefore, when conducting experiments in chemical laboratories, it is necessary to use air purification devices to purify the emitted harmful substances. For example, a chemical laboratory air purification device proposed in patent publication number CN207126276U slows down the air circulation speed as much as possible while ensuring that the air pump will not be damaged by excessive air pressure, thereby extending the service life of the air purification device.

[0003] When conducting experiments in chemical laboratories, reagents or reaction systems are often heated during the experiment. The increase in temperature will intensify the thermal motion of molecules, making it easier for reagent molecules to break away from the constraints of liquid or solid surfaces and then evaporate into the air. Common volatile substances include organic solvents such as ethanol, acetone, benzene, and toluene. Usually, purification devices use ionic liquids to absorb these organic solvents to purify the air. However, as the concentration of organic solvents absorbed by the ionic liquid continues to increase, its absorption performance will gradually decrease. At this time, the ionic liquid in the purification device needs to be replaced. Moreover, since the types of organic solvents contained in the replaced ionic liquids are different, the experimenters are required to perform additional purification treatments, which undoubtedly increases the workload of the experimenters. In addition, when the absorption performance of the ionic liquid in the purification device decreases and the experimenters fail to replace it in time, the organic solvents that have not been fully treated will still be discharged into the air and inhaled by the human body, thereby 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 object 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 object, the present invention adopts the following technical scheme: an air purification device for a chemical laboratory, comprising a mobile frame and a PLC controller arranged on the lower side wall of the mobile frame, and further comprising: A purification component, arranged on the upper side wall of the mobile frame, purifies harmful substances in the gas transported by the transport component; A control component is disposed on the upper surface of the purification component and heats various organic substances in the ionic liquid in the purification component respectively; A condensation component is arranged on the right side of the purification component to condense various organic substances after heating; The recovery component is arranged below the movable frame and classifies and recovers various organic substances after condensation.

[0007] 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 movable 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, the upper inner wall of the purification box is fixedly connected to an ultrasonic vibration rod, the outer wall of the purification box is fixedly sleeved with a jacket, the inner wall of the jacket is fixedly connected to a plurality of heating wires, the upper side wall of the purification box is fixedly connected to an exhaust pipe and an injection pipe, the ionic liquid is transported into the purification box through the injection pipe, the upper end of the exhaust pipe extends out of the working box, a control valve is provided in the exhaust pipe, the right side wall of the purification box is connected to a discharge pipe, which can discharge the ionic liquid after long-term use, the lower side wall of the purification box is fixedly connected to an exhaust serpentine pipe, the upper side pipe wall of the exhaust serpentine pipe is connected to a plurality of exhaust heads, and a one-way valve is provided in the exhaust serpentine pipe.

[0008] Preferably, the conveying assembly 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 connected to the air inlet end of the air pump, the upper side wall of the working box is fixedly connected to a linear motor, the output end of the linear motor is fixedly connected to a moving rod, the upper end of the moving rod is fixedly connected to an air suction hood, and the upper end of the serpentine hose is fixedly connected to the upper side wall of the air suction hood.

[0009] Preferably, the control assembly includes a control box and a short tube, the control box is fixedly connected to the upper side wall of the working box, the control box is connected to the wall of the exhaust pipe through the short tube, a magnetic control valve is arranged in the short tube, the upper side wall of the control box is inlaid with a microporous plate, the inner wall of the control box is fixedly connected with a retaining ring, the left inner wall of the control box is fixedly connected with a piston plate 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, the upper inner wall of the control box is fixedly connected with an extrusion switch, the extrusion switch is located on the left side of the piston plate, the left side wall of the piston plate is fixedly connected with a connecting frame through a bracket, the inner wall of the connecting frame is rotatably connected with a conical block, the tip of the conical block close to the connecting block is an arc structure, the upper side wall of the conical block is inlaid with a conductive block, the upper inner wall of the working box is inlaid with four conductive plates, and the conductive plate is electrically connected to the PLC controller.

[0010] 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 is connected to 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 connected to a telescopic tube, the lower end of the telescopic tube is fixedly connected to a cannula, the lower side wall of the movable frame is fixedly connected to a micro-electric push rod, the moving end of the micro-electric push rod is fixedly connected to the cannula through the bracket, the right side wall of the movable frame is fixedly connected to a water tank, the upper side wall of the water tank is fixedly connected to a water pump, the water inlet end of the water pump is connected to the side wall of the water tank, the water outlet end of the water pump is connected to the right side wall of the condensation box, the left side wall of the condensation box is connected to a return pipe, the lower end of the return pipe is connected to the upper side wall of the water tank, a plurality of semiconductor refrigeration plates are plugged into the right side wall of the water tank, the refrigeration end of the semiconductor refrigeration plate is located in the water tank, and the heat release end of the semiconductor refrigeration plate extends out of the water tank.

[0011] Preferably, the recycling component includes a rotating plate and a control motor, the inner wall of the movable frame is fixedly connected with a placing plate, the control motor is fixedly connected to the lower side wall of the placing plate, the output end of the control motor passes through the side wall of the placing plate and is fixedly connected to the rotating plate, the upper side wall of the rotating plate is fixedly connected with four placing cylinders, recycling bottles are placed in the placing cylinders, a rubber plug is inserted at the inlet of the recycling bottle, and the control motor is electrically connected to the PLC controller.

[0012] Preferably, a fan is fixedly connected to the right side wall of the water tank, and the fan is located above the heat dissipation end of the semiconductor refrigeration plate.

[0013] Preferably, the side wall of the placement plate is fixedly connected with a positioning electric push rod, the movable end of the positioning electric push rod is fixedly connected with a positioning pin, the lower side wall of the rotating plate is provided with a positioning groove located directly below the recovery bottle, and a guide cover is provided outside the positioning groove.

[0014] Compared with the existing technology, the advantages of a chemical laboratory air purification device are: 1. By setting up the purification component and the conveying component, when the purification device is used to absorb and treat the volatile organic solvents in the air, the adsorption range of the purification device can be expanded, and the ionic liquid can be used to fully absorb the volatile organic solvents in the air, thereby reducing the pollutants in the air in the laboratory.

[0015] 2. Through the control components and condensation components, after the ionic liquid is used to absorb various volatile organic solvents in the air, the various organic substances in the ionic liquid can be heated and evaporated according to the different boiling points of the various organic substances, and then condensed, so that the ionic liquid always maintains good adsorption performance, avoiding the problem that after the ionic liquid is used for a long time, the adsorption performance decreases, and some organic solvents are not processed and still evaporate into the air, and are inhaled by the human body, thereby endangering human health.

[0016] 3. After the gas containing pollutants is transported to the purification device through the ultrasonic vibration rod, the cavitation effect generated by ultrasound in the liquid is used to form local high temperature, high pressure and strong shock waves, thereby generating micro-nano bubbles. The micro-nano bubbles rise very slowly in the water and can stay in the liquid for a long time, increasing the contact time with the pollutants. At the same time, when the micro-nano bubbles burst, they will produce local high temperature and high pressure and strong oxidizing substances such as hydroxyl free radicals, which are helpful to decompose organic matter and kill microorganisms.

[0017] 4. Through the recovery component, after condensing various organic solvents, the organic matter after condensation can be classified and recovered, which is convenient for operators to reuse or otherwise process the organic matter later. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a chemical laboratory air purification device provided by the present invention; Figure 2 It is a structural schematic diagram of a conveying component in a chemical laboratory air purification device provided by the present invention; Figure 3 It is a structural schematic diagram of a control component in a chemical laboratory air purification device provided by the present invention; Figure 4 It is a schematic diagram of the connection mode of the conical blocks in the chemical laboratory air purification device provided by the present invention; Figure 5 It is a structural schematic diagram of a condensation component in a chemical laboratory air purification device provided by the present invention; Figure 6 It 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; Figure 7 The present invention is a top view of an exhaust serpentine pipe in a chemical laboratory air purification device provided by the present invention.

[0019] In the figure: 1 mobile frame, 2 PLC controller, 3 purification component, 301 working box, 302 purification box, 4 ultrasonic vibrator, 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 cover, 16 control component, 161 control box, 162 short pipe, 17 magnetic control valve, 18 microplate, 19 retaining ring, 20 piston plate, 21 air pressure hole, 22 squeeze switch, 23 connecting Connecting frame, 24 conical block, 25 conductive block, 26 conductive plate, 27 condensation assembly, 271 condensation box, 272 spiral tube, 28 solenoid valve, 29 telescopic tube, 30 insert tube, 31 micro electric push rod, 32 water tank, 33 water pump, 34 return pipe, 35 semiconductor refrigeration plate, 36 recovery assembly, 361 rotating plate, 362 control motor, 37 placement plate, 38 placement cylinder, 39 recovery bottle, 40 rubber plug, 41 fan, 42 positioning electric push rod, 43 positioning pin, 44 positioning groove, 45 guide cover, 46 exhaust pipe, 47 injection pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] like Figure 1-Figure 7 As shown, a chemical laboratory air purification device includes a mobile frame 1 and a PLC controller 2 arranged on the lower side wall of the mobile frame 1, and also includes: The purification component 3 is arranged on the upper side wall of the mobile frame 1 to purify harmful substances in the gas transported by the transport component 12; The control component 16 is disposed on the upper surface of the purification component 3 and heats various organic substances in the ionic liquid in the purification component 3 respectively; The condensation component 27 is arranged on the right side of the purification component 3 to condense the various organic substances after heating; The recovery component 36 is arranged below the movable frame 1 to classify and recover various organic substances after condensation.

[0022] 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 mobile 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. 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 sleeved with a jacket 5. The inner wall of the jacket 5 is fixedly connected to multiple heating wires 6. The upper side wall of the purification box 302 is fixedly connected with an exhaust pipe 46 and an injection pipe 47. 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. A control valve 7 is provided in the exhaust pipe 46. The right side wall of the purification box 302 is connected with a discharge pipe 8, which can be used to discharge the ionic liquid after long-term use. The lower side wall of the purification box 302 is fixedly connected with an exhaust serpentine pipe 9 The upper side wall of the exhaust serpentine pipe 9 is connected to multiple exhaust heads 10, a one-way valve 11 is arranged in the exhaust serpentine pipe 9, the conveying assembly 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 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, when the purification device is used to absorb and treat the organic solvent volatilized in the air, the adsorption range of the purification device can be expanded, and the ionic liquid can be used to fully absorb the organic solvent volatilized in the air, thereby reducing the pollutants in the air in the laboratory.

[0023] The control assembly 16 includes 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. A magnetic control valve 17 is arranged in the short 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 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 switch 22 is located on the left side of the piston plate 20. The left side wall of the piston plate 20 is fixedly connected to the connecting frame 23 through a bracket. The inner wall of the connecting frame 23 is rotatably connected to a conical block 24. The tip of the conical block 24 close to the connecting 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 plate 26 is electrically connected to the PLC controller 2. The condensation component 27 includes 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 through 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 exhaust. The tube wall of the tube 46 is connected, the spiral tube 272 is provided with a solenoid valve 28, the lower end of the spiral tube 272 passes through the mobile frame 1, and is fixedly connected with a telescopic tube 29, the lower end of the telescopic tube 29 is fixedly connected with a cannula 30, the lower side wall of the mobile frame 1 is fixedly connected with a micro electric push rod 31, the moving end of the micro electric push rod 31 is fixedly connected with the cannula 30 through the bracket, the right side wall of the mobile frame 1 is fixedly connected with a water tank 32, the upper side wall of the water tank 32 is fixedly connected with a water pump 33, the water inlet end of the water pump 33 is connected with the side wall of the water tank 32, the water outlet end of the water pump 33 is connected with the right side wall of the condensation tank 271, the left side wall of the condensation tank 271 is connected with a return pipe 34, the lower end of the return pipe 34 and The upper side wall of the water tank 32 is connected, and a plurality of semiconductor refrigeration plates 35 are inserted into the right side wall of the water tank 32. The cooling end of the semiconductor refrigeration plate 35 is located in the water tank 32, and the heat release end of the semiconductor refrigeration plate 35 extends out of the water tank 32. After the ionic liquid is used to absorb various volatile organic solvents in the air, the various organic substances in the ionic liquid can be heated and evaporated according to the different boiling points of the various organic substances, and then condensed, so that the ionic liquid always maintains good adsorption performance, avoiding the problem that the adsorption performance of the ionic liquid decreases after long-term use, which will cause some organic solvents to not be processed and still evaporate into the air and be inhaled by the human body, thereby endangering human health.

[0024] The recycling component 36 includes 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. A recycling bottle 39 is placed in the placement cylinder 38. A rubber plug 40 is inserted at the inlet of the recycling bottle 39. The control motor 362 is electrically connected to the PLC controller 2. After condensing various organic solvents, the organic matter after the condensation treatment can be classified and recycled, which is convenient for the operator to reuse or otherwise process the organic matter later.

[0025] A fan 41 is fixedly connected to the right side wall of the water tank 32 . The fan 41 is located above the heat dissipation end of the semiconductor refrigeration plate 35 , and can quickly dissipate the heat discharged from the heat dissipation end of the semiconductor refrigeration plate 35 .

[0026] The side wall of the placement plate 37 is fixedly connected with a positioning electric push rod 42, and the movable end of the positioning electric push rod 42 is fixedly connected with a positioning pin 43. The lower side wall of the rotating plate 361 is provided with a positioning groove 44 located directly below the recovery bottle 39, and a guide cover 45 is provided outside the positioning groove 44 to fix the position of the rotating plate 361.

[0027] The operating principle of the present invention is now described as follows: the purification device is moved to the area to be treated in the chemical laboratory, and then an electrical signal is transmitted to the PLC controller 2 through a control button (the control button is set on the rear side wall of the mobile frame 1, not shown in the figure). After receiving the electrical signal, the PLC controller 2 first controls the magnetic control valve 17 to be powered on and opened, and 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, and use the cavitation effect generated by ultrasound in the liquid to form local high temperature, high pressure and strong shock waves, thereby generating micro-nano bubbles. The rising speed of the micro-nano bubbles in the water is extremely slow, and they can stay in the liquid for a long time, which increases the contact time with the pollutants. At the same time, the micro-nano bubbles will generate local high temperature when they burst. High pressure and strong oxidizing substances such as hydroxyl radicals help to decompose organic matter and kill microorganisms. The organic solvent recovered in the gas will come into contact with the ionic liquid. The ionic liquid is composed of anions and cations. The charged part can generate electrostatic attraction with the polar groups in the organic molecules, so that the ionic liquid can be used to absorb the organic matter. 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, so that the air in the space on the right side of the piston plate 20 As the pressure increases, the piston plate 20, under the action of the atmospheric pressure, drives the conical block 24 to move to the left. When the conical block 24 moves to the left, the conical block 24 rotates 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 squeezes the squeezing switch 22, the squeezing switch 22 transmits an electrical signal to the PLC controller 2. After receiving the electrical signal, the PLC controller 2 controls the magnetic control valve 17 to close and controls the control valve 7 to open, so that the gas is discharged through the exhaust pipe 46. When the magnetic control valve 17 is closed, the gas on the inner wall of the control box 161 will be slowly discharged through the microporous plate 18, and the piston plate 20 will drive the conical block 24 to move to the right under the push of the elastic force of the spring. 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 and the upper inner wall of the control box 161 fit together. Since the exhaust speed of the microporous plate 18 is very slow, the speed of the piston plate 20 moving to the right is also very slow. When 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 and the most The conductive plate 26 on the left side is in contact with the conductive plate 26 on the far left, and the conductive plate 26 on the far left is electrically connected to the PLC controller 2. After receiving the electrical signal transmitted from the conductive plate 26 on the far left, the PLC controller 2 first controls the control valve 7 to close, and controls the solenoid valve 28 to open, and at the same time 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 just below (the operator will remove the rubber plug 40 when the purification device is working, and will reinsert the rubber plug 40 into the recovery bottle 39 after the end), and then the PLC controller 2 controls the multiple heating wires 6 to work, using The heating wire 6 heats the ionic liquid in the purification box 302. A temperature sensor is provided in the ionic liquid (the temperature sensor is not shown in the figure). Through the provided temperature sensor, the PLC controller 2 controls the heating wire 6 to heat the ionic liquid to 56°C (for example, the organic volatiles 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 its boiling point is about 340°C). When the ionic liquid is heated to 56°C, acetone will first boil and evaporate, and the evaporated acetone gas will enter The heating wire 6 is put into the spiral tube 272. When the heating wire 6 is working, the PLC controller 2 will also control the semiconductor refrigeration plate 35 and the water pump 33 to work at the same time. The semiconductor refrigeration plate 35 cools the liquid in the water tank 32, and the refrigerated water is transported to the condensation tank 271 through the water pump 33, and then transported to the water tank 32 again through the return pipe 34. When the cold water is transported to the refrigeration tank, it will contact the steam of the acetone solvent in the spiral tube 272, so that the acetone solvent is condensed and liquefied as a whole. The liquefied acetone solvent is transported to the corresponding recovery bottle 39 below through the telescopic tube 29 and the cannula 30. Referring to the above principle, the piston plate 20 drives the conductive block 25 to move rightward at a very slow speed, and the conductive block 25 contacts the left conductive plate 26 for a long time, which will cause all the acetone in the ionic liquid to evaporate and be transported to the recovery bottle 39 for storage. When the conductive block 25 and the leftmost conductive plate 26 are about to separate, the acetone solvent will no longer drip downward in the cannula 30. When the conductive block 25 and the leftmost conductive plate 26 are separated, they will contact the second conductive plate 26 on the left, causing the second conductive plate 26 on the left to transmit an electrical signal to the PLC controller 2. After receiving the electrical signal, the PLC controller 2 first controls the micro electric push rod 31 to drive the cannula 30 to move upward and detach from the recovery bottle 39, and then controls the positioning electric push rod 42 to drive The positioning pin 43 disengages from the positioning slot 44, and then the PLC controller 2 drives the control motor 362 to work, and the control motor 362 drives the rotating plate 361 and the four recovery bottles 39 to rotate at the same time, so that the corresponding recovery bottle 39 rotates and moves to the bottom of the cannula 30, and then the PLC controller 2 controls the positioning electric push rod 42 to drive the positioning pin 43 to reinsert into the positioning slot 44, fix the position of the rotating plate 361 and the recovery bottle 39, and then controls the micro electric push rod 31 to drive the cannula 30 to be inserted into another corresponding recovery bottle 39, and 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 matter in the ionic liquid can be processed subsequently.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should 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 rack (1) to purify harmful substances in the gas conveyed by the conveying component (12); a control component (16) is arranged on the upper surface of the purification component (3) to heat 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) to condense the various organic substances after heating; and a recovery component (36) is arranged below the movable rack (1) to classify and recover the various organic substances after condensation.

2. A chemical laboratory air purification device according to claim 1, characterized in that: The purification assembly (3) comprises a working box (301) and a purification box (302), wherein the working box (301) is fixedly connected to the upper side wall of the mobile frame (1), and 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 sleeved with a jacket (5), the inner wall of the jacket (5) is fixedly connected to a plurality of heating wires (6), and the upper side wall of the purification box (302) is fixedly connected to a plurality of heating wires (6). An exhaust pipe (46) and a liquid injection pipe (47) are provided, and ionic liquid is transported 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 provided in the exhaust pipe (46). The right side wall of the purification box (302) is connected to a discharge pipe (8) for discharging 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). A one-way valve (11) is provided in the exhaust serpentine pipe (9).

3. A chemical laboratory air purification device according to claim 2, characterized in that: The conveying assembly (12) comprises 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 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); and the upper end of the serpentine hose (122) is fixedly connected to the upper side wall of the air suction hood (15).

4. A chemical laboratory air purification device according to claim 1, characterized in that: 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 in communication with the wall of the exhaust pipe (46) via the short tube (162); a magnetic control valve (17) is arranged in the short 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); and the microporous plate (18) is located on the right side of the retaining ring (19). The left side wall of the control box (161) is provided with an air pressure hole (21); the upper inner wall of the control box (161) is fixedly connected with an extrusion switch (22); the extrusion switch (22) is located on the left side of the piston plate (20); the left side wall of the piston plate (20) is fixedly connected with a connection frame (23) through a bracket; the inner wall of the connection frame (23) is rotatably connected with 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).

5. A chemical laboratory air purification device according to claim 1, characterized in that: 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 movable 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); the lower side wall of the movable frame (1) is fixedly connected to a micro electric push rod (31); the movable end of the micro electric push rod (31) is connected to the movable end of the micro electric push rod (31); The right side wall of the mobile frame (1) is fixedly connected to a water tank (32) through a bracket and an insert pipe (30), the upper side wall of the water tank (32) is fixedly connected to a water pump (33), the water inlet end of the water pump (33) is in communication with the side wall of the water tank (32), the water outlet end of the water pump (33) is in communication with the right side wall of the condensation tank (271), the left side wall of the condensation tank (271) is in communication with a return pipe (34), the lower end of the return pipe (34) is in communication with the upper side wall of the water tank (32), the right side wall of the water tank (32) is plugged with a plurality of semiconductor refrigeration plates (35), the refrigeration end of the semiconductor refrigeration plate (35) is located in the water tank (32), and the heat release end of the semiconductor refrigeration plate (35) extends out of the water tank (32).

6. A chemical laboratory air purification device according to claim 5, characterized in that: 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).

7. A chemical laboratory air purification device according to claim 5, 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).

8. A chemical laboratory air purification device according to claim 6, 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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