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

Active Publication Date: 2017-01-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these air purification devices are bulky. Because of the large pressure difference between the air inlet and the air outlet, a high-power fan is required, which not only consumes a lot of power, but also makes a lot of noise, so it is not suitable for indoor use.

Method used

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  • An indoor air purifier based on dielectric barrier discharge and pi nano-membrane filtration
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  • An indoor air purifier based on dielectric barrier discharge and pi nano-membrane filtration

Examples

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Effect test

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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Abstract

The invention discloses an indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration. The indoor air purifier comprises a box body with an air duct, wherein an inlet and an outlet which are communicated with the air duct are respectively formed in two ends of the box body; a fan is arranged at the inlet; a dielectric barrier discharge device is arranged in the air duct; and a PI nanofilm filtration cover with a purified gas outlet is formed in the outlet of the box body. According to the indoor air purifier based on dielectric barrier discharge and PI nanofilm filtration disclosed by the invention, three technologies such as dielectric barrier discharge, physical filtration and chemical catalysis are combined, a synergistic effect of low temperature plasma and chemical catalysis is utilized, the directional oxidation capacity is improved, and the air purification capacity is improved. Moreover, a foldable PI nanofilm with large filtering area is adopted, so that fine particles in air can be blocked, and the energy consumption is not increased.

Description

technical field [0001] The invention relates to the field of indoor air purification, in particular to an indoor air purifier based on dielectric barrier discharge and PI nano-membrane filtration. Background technique [0002] Under normal circumstances, people spend 70% to 90% of their time indoors in a day. The indoor air quality is directly related to the occupants' work efficiency and physical and mental health, and the most important indoor air pollutants are inhalable pollutants. Particles (PM 2.5 ) and volatile organic compounds (VOCs). The physiological structure of the human body determines the PM 2.5 Without any filtering and blocking capabilities, especially particles with a particle size of less than 1 μm (PM 1.0 ), will directly enter the alveoli, which has a greater impact on human health. Volatile organic compounds (VOCs), such as formaldehyde, toluene, Chloride, acetone, phenol, etc. will cause serious damage to the human respiratory tract, nervous syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/32B01D53/86B01D53/44B01D46/54F24F1/02
Inventor 高翔陈景欢郑成航骆仲泱岑可法倪明江覃睿沈之旸曹飞飞刘丁丁施正伦周劲松
Owner ZHEJIANG UNIV
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