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Air purifying device

An air purifying device and air filter technology, applied in the direction of air quality improvement, air conditioning system, space heating and ventilation, etc., can solve the problems of poor dust collection effect, reduce discharge current, etc., and achieve extended working life and overall structure compact effect

Active Publication Date: 2010-12-22
ZHEJIANG TIANQING ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The common defect of above-mentioned two technical schemes is: discharge electrode or ionization pole are saw-toothed or needle-shaped, and they are in tip discharge state in electrostatic field, form discharge current injection
In the vicinity of purple-blue light, oxygen and nitrogen in the air are easily activated, forming unfavorable factors such as ozone and nitrogen oxides; reducing the discharge current, the dust collection effect will be poor

Method used

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Experimental program
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Effect test

Embodiment 1

[0040] figure 1 It is a schematic diagram of the cross-sectional structure of the air purification device of the present invention; figure 2 It is a three-dimensional structure diagram of a plasma reactor half section of the present invention; image 3 It is a structural schematic diagram of the conductive rail for preventing micro-discharge of the present invention.

[0041] The air purification device of the present invention comprises a plasma reactor 1, a pulse power supply 2, a fan assembly 3, a controller 4, a fresh air outlet 5, an air outlet 6 and a casing 8; the high voltage output end of the pulse power supply 2 is electrically connected to the plasma reactor 1 connection, the fresh air outlet 5 is provided with an air filter 9, the air outlet 6 is provided with an air filter 10, the plasma reactor 1 and the fan assembly 3 are arranged in the air flow, and the two output terminals of the controller 4 are respectively connected with the pulse power supply 2 It is e...

Embodiment 2

[0053] The invention designs a platform return air system for saving energy consumption of subway platform air conditioners and air purification. The return air outlet 20 is located at the platform entrance, and can also be docked with the air-conditioning outlet of the subway platform. The air return port 20 is equipped with an air return port air filter 13, a second medium-efficiency air filter 14, an air return control valve 18, a plasma reactor 1, and an air return duct 22 in turn, and the air return control valve 18 is installed in the air return control compartment. plate 19. The air outlet of the return air duct 22 is installed on the air inlet of the fan assembly 3 . Adjusting the return air control valve 18 can control the size of the return air. The return air volume generally accounts for 70% of the total amount of disinfection and purification air, and it is significant to save the energy consumption of air conditioners on the subway platform.

Embodiment 3

[0055] The surface of the negative electrode 102 of the present invention is made of an oxidized aluminum plate, and the two sides of the negative electrode 102 are covered with nano-scale TiO 2 ; The nanoscale TiO 2 It is an anatase catalyst with a band gap energy of 3.2eV. The upper and lower ends of the negative electrode 102 adjacent to the reactor shell 108 are each provided with a protruding negative electrode fixing pin 111, and the corresponding parts of the reactor shell 108 are provided with grooves for docking and fastening. The thickness of the negative electrode aluminum plate is set at 1-2.0 mm, the surface is oxidized, the working life is long, and the appearance is bright. Alternatively, the thickness of the stainless steel plate used as the negative electrode 102 is 0.5-1.5 mm. Welding technology is used in the implementation, and there is warping phenomenon. There will be assembly errors when bending the negative electrode 102 and twisting the nails, and t...

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Abstract

The invention belongs to the technical field of air sterilization and purification, in particular to an air purifying device which is specially designed for air purification of subway stations of closed systems and shield door systems. The air purifying device comprises a plasma reactor, a pulse power source, a fan component, a controller, a fresh air opening, an air outlet and a shell and is characterized in that a positive electrode and a negative electrode are arranged in the plasma reactor, wherein the positive electrode is a component which is formed by arranging a plurality of oxidation resistant metal bands in parallel, and the negative electrode is made of an aluminum plate or a stainless steel plate; a plurality of conductor rails for preventing micro-discharge are also arranged in the plasma reactor, and the positive electrode is fixed on each conductor rail for preventing micro-discharge; and a semiconductor switching tube Q1 and a pulse boosting transformer in the pulse power source are arranged according to a single-ended flyback inverter circuit. The invention has the advantages of high sterilization efficiency, good effects on degrading organic compounds and removing particulate matter, energy saving, good reliability and long working life. The invention is mainly used for air sterilization and purification of subway stations, tunnels, underground buildings and families.

Description

Technical field: [0001] The invention belongs to the technical field of air disinfection and purification, and specifically relates to an air purification device, which is specially designed for the air purification of subway platforms of closed systems and screen door systems. Background technique: [0002] The subway station is in a relatively closed special environment, with dense crowds and high mobility on the platform, lack of sunlight, poor natural ventilation, and serious air pollution; especially the subway platforms in Nanjing, Guangzhou, and Hong Kong are designed as closed systems; the subway platforms in Shanghai and Shenzhen It is screen door system. Coupled with the temperature and humidity of the air conditioner, it is easy to cause the spread of diseases and damage health. In particular, the outbreak of SARS, bird flu, and the current H1N1 influenza virus in the past few years has become the focus of people's attention. [0003] To this end, people in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/16F24F7/00F24F13/28
CPCY02A50/20
Inventor 周云正
Owner ZHEJIANG TIANQING ENVIRONMENTAL PROTECTION TECH CO LTD
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