Central News Agency, Shanghai, November 1 (Reporter Fu Wenjie correspondent Lu Xiaolu) by the Fudan University School of Information Science and Engineering Qiong Rong led the team to develop an upgraded version of the plasma sterilization dust removal technology debut at the 18th China International Industry Fair. If the filter technology is now commonly available on the market only a mask that can physically intercept large particles of dust, then the plasma dust removal technology is magnetite, the first to bring the dust on the charge, and then through a strong electric field to absorb and be able to break down Organic macromolecules kill bacteria and viruses. Sterile zero supplies, woven structure of the reactor increased to five years Air purifiers on the market are now divided into two categories, one is to rely on filtration and adsorption to intercept the dust in the air, one is by virtue of plasma, electrostatic or negative ion technology to purify the air. According to reports, the filter block is a physical adsorption, not only will not kill bacteria, but also multiply bacteria in its internal, itself has become a secondary source of pollution. The plasma sterilization dust removal technology directly kill bacteria at the same time, the collection of dust will not become a source of pollution. In order to prevent dust from collecting too much, the ability to collect electric fields is reduced. Regular cleaning can be carried out in a matter of months or once every six months, while cleaning only consumes labor. In the life of the equipment, the plasma filter is zero consumables, while the physical adsorption of HEPA network is a one-time consumables, and low dust holding capacity, need to be replaced regularly, although the machine for the first time to buy cheap, users have to bear later A steady stream of supplies replacement costs, two or three years down, the cost will exceed the plasma sterilization equipment investment. Unlike the general practice of acicular and jagged reactors, the Qiongqiong team used braided electrode plasma reactors. "Whether it's tungsten wire, needle-like or jagged, we've tested it and the shortcomings of them are pretty clear. In theory, the reactor is as sharp as possible. They are all tapered and the sharp places are easily corroded by discharge Off and dull, the field gain of the tip electrode will drop, the voltage will rise, the ozone yield will also rise, because ozone production to a certain extent, the voltage is a positive correlation.Now many devices on the market, the new machine Normal indicators, with about three months, ozone is easily exceeded. "Braided structure to some extent to solve the problem of electrode life is short, making the electrode increased to more than five years. "From the design point of view, weaving structure of the electrode diameter is the same, corrosion down, the diameter will not change because the wire is too thin, can not be erected, so the use of woven structure." Area Qiong Rong explained. R & D for three years to reduce costs Plasma dust and negative ion dust, electrostatic dust, in essence, are high-voltage discharge phenomenon to be used in dust removal technology. Negatively charged electrons and positively charged ions generated after ionizing the air are adsorbed to the dust or organic molecules, thereby electrifying the dust, or ionizing the organic molecules. Charged on the charged dust on the dust, no longer random random Brownian motion, and move along the direction of the electric field electric field. The strong electric field area attracts the charged dust, negatively charged dust is adsorbed to the positive electrode, and positively charged dust is adsorbed on the negative electrode, so the dust is collected in the dust accumulation area in the electric field, just like the magnet absorbs rust . This is the basic principle of ion sterilization dust removal technology. Compared with the negative ion technology and the static discharge technology of DC, the plasma sterilization and dust removal technology possesses strong charge and dust collection ability, and the purification efficiency is much higher than the former two. District Qiong Rong revealed that the original intention of studying this technology is to reduce costs. Today, technology is optimized to reduce costs. "Now on the market a plasma sterilization dust collector for a 50-square-meter conference room costs about 3,000 RMB, and a plasma sterilizer for a 20-square-meter room costs around 1,000 yuan and is virtually maintenance-free , Ordinary home use is no problem. "With the promotion and updating of technology, the market price of sterilizing precipitator is expected to drop lower. Pilot Control Devices,Pilot Control Valve,Pilot Control Element,Hydraulic Directional Control Valve Zhejiang Haihong Hydraulic Technology Co.,Ltd. , https://www.haihong-hydraulic.com