Demystifying the role of electrostatic electret high-voltage power supply in the war epidemic of new coronary pneumonia

An unexpected new type of coronavirus pneumonia (new crown pneumonia) epidemic has turned ordinary masks into scarce supplies. The rarity once made people liken masks to love-everyone has heard of it, never Several people have seen it. Usually we only use masks to keep warm or prevent haze, and they have entered the public eye with an almost life-saving attitude, and have also given people a deeper understanding of masks, such as N95 masks, N99 masks, disposable medical masks, KN95 masks. ... Various mask terms make people dazzled and want to re-understand it clearly.

In this stormy environment caused by the shortage of masks, I believe that everyone's knowledge about masks is a little higher than that of Xiaobian, but Xiaobian took a different approach and concentrated on researching an indispensable equipment in the production process of masks - electrostatic station pole equipment. What exactly is this device, let's start with the composition of the mask:

Taking disposable medical masks as an example, there are generally more than three layers. In addition to the two layers on the front and rear surfaces, there is another meltblown layer inside, which is the key to this mask. The filter layer used in the middle of medical masks has good filterability, barrier properties, heat preservation and adsorption properties. It is precisely because of it that it can show great power in filtering aerosols, bacteria and smoke.

Demystifying the role of electrostatic electret high-voltage power supply in the "war epidemic" of new coronary pneumonia

You may have doubts, the principle of filtration is like a sieve, so can't we reduce the "sieve hole" of the mask?

This is not the case. Our lungs are not blowers. Too tight structure can lead to poor breathing, especially for people with cardiovascular and cerebrovascular diseases. Improper choice and wearing of masks may even lead to fatal risks. Therefore, under the condition of ensuring low wind resistance, scientific research experts form an electrostatic field on the mask by adding static electricity, and use static electricity + filtration to absorb these tiny particles that are harmful to the human body.

The melt-blown layer is made of melt-blown non-woven fabric. Melt-blown non-woven fabric is a polypropylene material that has undergone high-voltage electrostatic treatment. Special masterbatch is incorporated into the non-woven fabric. After electrostatic treatment, the non-woven fabric can be made Permanently carry static electricity. This non-woven fabric also has the advantages of high filtration efficiency and low filtration resistance.

So how can masks be electrostatically charged?

Now invite today's protagonist - the special high-voltage power supply for electrostatic electret equipment. Before 2005, there were no serious high-voltage power supply manufacturers in China, and Dalian Teslaman was born at this time, becoming one of the few domestic high-voltage power supply manufacturers. Professional manufacturer of high voltage power supply.

In industrial production, the reliability, stability and precision requirements of equipment are very high, and the impact on production continuity and the quality requirements of final products are even more stringent. Because the normal production speed of meltblown cloth can reach 24 meters to 72 meters per hour, if the high-voltage power supply is frequently started slowly, or the slow start is slow, the non-woven fabric will not be electrostatically charged under these abnormal conditions, and there are large When the high-voltage power supply produced by most manufacturers ignites, it will also produce larger melting holes on the non-woven fabric. Another important point is that under the same working conditions, the higher the voltage and current parameters that the high-voltage power supply can output, the better the electrostatic effect. Poor, the effect of non-woven charging is unsatisfactory, and these seemingly inconspicuous abnormalities will cause headaches for users.

After more than 10 years of market tests and feedback, the high-voltage power supply for electret equipment provided by Dalian Teslaman has not only broken the foreign monopoly on this type of industry, but also added customized one-key operation in the joint exploration with customers. ,>24m/min mode, no melt hole mode, abnormal self-judgment, working parameter self-test, on-site parameter input and other functions. In addition to the high-voltage power supply provided to the meltblown non-woven fabric industry in the past 10 years, in just one month after the outbreak, Teslaman Technology has provided nearly 100 sets of dedicated high-voltage power supply equipment for this industry.

Mr. Li Zhenqian, chairman of Dalian Teslaman Technology, said that as a high-tech enterprise in China, not only must national enterprises be stronger and not be controlled by others at critical moments, but also at the time of national crisis, they must go all out to contribute their modest efforts .
I would like to pay tribute to those companies who have silently carried forward this "war epidemic" with this article!