An indoor air purifier based on dielectric barrier discharge and pi nano-membrane filtration
A dielectric barrier discharge and indoor air technology, applied in the field of indoor air purification, can solve the problems of bulky air purification devices, not suitable for indoor use, pressure difference, etc., to improve the surface adsorption process, reduce secondary pollution, and reduce electrode spacing small effect
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preparation example Construction
[0041] The preparation method of PI nano film:
[0042] Get equimolar amounts of pyromellitic dianhydride (PMDA) and p-phenylenediamine (PPD) and dissolve them in N, N dimethylformamide (DMF) solvents respectively, stir vigorously under nitrogen protection, and at the same time, PMDA solution Slowly add it dropwise to the PPD solution, react at 15°C for 1h, then raise the temperature of the reaction system to 25°C for 3h to obtain a polyamic acid (PAA) solution; transfer the obtained polyamic acid (PAA) solution into a 10ml syringe, The needle adopts 16G~24G dispensing needle, and then the syringe is installed on the injection pump, the needle is connected to a DC high-voltage power supply, the receiving cylinder is equipped with aluminum foil and grounded, and electrostatic spinning is carried out under normal temperature and humidity conditions; the injection speed of the injection pump is 1~2ml / h, the voltage is 10~15kV, the receiving distance is 10~20cm, the rotating speed...
Embodiment 1
[0050] Such as figure 1 As shown, an indoor air purifier based on dielectric barrier discharge and PI nano-membrane filtration includes a box body 1, inside the box body 1 is an air duct for the passage of gas, and the two ends of the box body 1 are respectively communicated with the air duct Import 2 and export 3.
[0051] The fan 4 for introducing indoor air into the air duct is installed at the inlet 2 through the flange, the dielectric barrier discharge device 5 is installed in the box body 1, the PI nano-membrane filter cover 6 is installed at the outlet 3 through the flange, and the air duct of the box body 1 A honeycomb ceramic plate is installed near the outlet 3, and the honeycomb ceramic plate is loaded with MnO 2 .
[0052] The box body 1 is provided with a measuring port 7, whose function is to facilitate the measurement of wind speed, pressure and other parameters. The dielectric barrier discharge device 5 is provided with a plexiglass gas pipe joint 8 at the f...
Embodiment 2
[0061] For practical application systems, the indoor air purifier based on dielectric barrier discharge and PI nano-membrane filtration of the present invention can be combined with multiple auxiliary systems to realize intelligent reminder and remote control, specifically including air quality detection system, remote control system, and reminder system.
[0062] The main function of the air quality detection system is to detect the concentration of indoor air particles, so as to inform the user whether it is necessary to start the air purifier; the main function of the remote control system is that the user can control the start of the indoor air purifier through the mobile phone, thereby Allow users to enjoy fresh air as soon as they return home; the main function of the reminder system is to remind users to clean the filter membrane.
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