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"Lao Su, you should have heard of air purifiers abroad, right?" Liang Yuan asked

In the 80s, the mainstream society in the West finally returned to normal after the hysterical "Beat Generation", just like the ancient Chinese saying that after the catastrophe must be followed by the great epidemic, the Beat Generation was thrown into the ruins of history after the famous HIV and countless spiritual garbage.

American society began to turn from the late seventies and early eighties, tradition began to be frequently mentioned, countless people began to reflect on issues such as "sexual liberation" and "overindustrialization", the harmony between man and nature gradually took root in the hearts of the people, and green movements such as environmental protection began to flourish.

In this context, during World War II, when the U.S. government carried out the Manhattan Project, the protection technology for radioactive materials was carried forward, this air filtration system called HEPA, which can filter out all harmful particles to keep the air clean, so that the scientists involved in the Manhattan Project can breathe freely, and the air purifier is built on the technology of HEPA.

As early as the sixties, in order to change the increasingly strict industrial pollution, the U.S. government implemented the TSP air quality standard, which is to monitor and control the total suspended solids particles in the air, with the vigorous development of the environmental protection movement, in the eighties, the United States revised the TSP standard, established a new air quality standard, and included PM10 into the monitoring scope, PM10 is a human inhalable suspended solids particles. It was not until the late 90s that the United States included PM2.5, which can enter the lungs, into the scope of monitoring and control, and it was not until the first decade of the new century that the overall atmospheric PM2.5 index in the United States dropped to about 5 micrograms, and the United States basically succeeded in controlling the atmosphere.

Europe, Japan, and the United States have similar atmospheric processes. It took more than 50 years for developed countries abroad to control the atmosphere, during which air purifiers began to develop in the late seventies and early eighties. By the end of the eighties, the American industrial giants Westinghouse, General Motors and other companies invested a lot of money in the air purifier industry, so that the sales of air purifiers have exploded. Throughout the eighties and nineties, air purifiers gradually formed a market of nearly 10 billion US dollars per year in developed countries, and many people in China did not know that there was such an industry abroad until after the new century.

Su Liangyu nodded and said: "When I was about to return to China, there was a severe haze in many places in the United States, and it was said on TV that it was caused by air pollution, and the air contained a large number of toxic and harmful substances. ”

"Xiaoyuan plans to produce this?" asked Su Liangyu.

Liang Yuan nodded and said, "It's too wasteful to use the AC motor control technology in the real room and only use it on the bladeless electric fan." A continuously variable speed function like a motor is most suitable for air purifiers. ”

Air purifiers seem simple, but if you want to make a first-class product, the technical content required is still very high, at least it is a big problem to integrate various sensors to monitor air quality with chips and provide intuitive display.

An important number of air purifiers is the amount of air exchange. How many cubic meters of air can be purified per hour, this aspect is quite similar to Liang Yuan's air conditioning fan, the air conditioning fan is to extract air through guò cold water curtain, and discharge it after cooling, and the air purifier is also to extract air and force its pre-set filter layer. Then exhaust the clean air, for Liang Yuan, the efficient suction fan can be handed over to his wife, but there is no high-reliability quiet motor in China.

Air purifiers are not better than air conditioning fans, air conditioning fans are low-end products below 100 US dollars in foreign countries, domestic motors can also be, Liang Yuan intends to enter the mainstream foreign home appliance market, the price of the product may exceed 300 US dollars, so Liang Yuan can not tolerate this obvious defective existence.

"Xiaoyuan, you don't know, air purifiers are family-oriented in the United States, air pollution is certainly on the one hand, on the other hand, because HEPA technology is widely used in integrated circuits, medicine, food and other industries need high-grade clean rooms, several famous industrial groups in the United States have invested heavily in related technologies, in order to share the cost of related industrial groups have been promoting air purifier family over the years, and then expand the application scope of HEPA technology. ”

In Su Liangyu's view, the biggest difference between Liang Yuan and ordinary entrepreneurs is that Liang Yuan never considers the scale of product production, output and other numbers, but after making a breakthrough in a certain technology, he will try to squeeze the use value of this technology and broaden the scope of use of this technology.

"Xiaoyuan, your idea is very good, it is very similar to the way some foreign companies operate on new technologies, the key is where do we go to engage in HEPA technology?"

"Hehe, Lao Su, you don't have to praise me in disguise, the so-called HEPA technology sounds quite bluffing, the filtration effect of more than 0.3 microns can reach 97% or something, it sounds like a very high-tech look, in fact, the raw materials of this thing are quite simple, that is, the streets are full of glass fiber, in popular terms, it is a variant of the filter paper used in the chemical industry to make real yàn. ”

For Liang Yuan, a guy who studied chemical engineering, there is no mystery about HEPA, and he used up at least thousands of them in the four years of college in his previous life.

"Of course, there are also high-tech ones, such as HEPA with ultra-fine polypropylene as the filter material, we can't get it, but there are simple things that can also achieve the effect, why choose the difficult one, the difficulty of the air purifier lies in the quiet motor, the stable and reliable motor control system that can reduce power consumption, the high-efficiency ventilation fan, and good sealing. If you want to make the product look very high-end, Lao Su also needs to get the number of jù from various sensors, so that the end user can intuitively feel it. ”

In Liang Yuan's view, those who were blown up in later generations were divine. The technologies of photocatalyst, plasma, and fine water ions originated from Japan are basically nonsense, and they have never been applied on a large scale in high-grade clean rooms.

There are only three technologies that are mainstream in the air purification industry, one is the ancient activated carbon, one is the HEPA, and the other is the CPZ filtration system. After the Oriental devils made countless tricks on air purifiers, the air purifiers exported to the United States honestly used three mainstream filtration systems, and only air purification products exported to China were used. Taking advantage of the psychology of Chinese consumers to be greedy for small and cheap and save the cost of replacing filters, they brag about these terms that seem to be bullish. staged a typical case of a lot of money, stupid people, and quick come.

CPZ is not a high-tech for Liang Yuan now, this thing is a filter substrate composed of activated carbon, potassium permanganate, and zeolite as the main raw materials, which is the benefit of the traverser, some formulas that were still in a top secret state in the eighties have long been rotten for future generations.

"Lao Su, I plan to integrate the bladeless electric fan into the air purifier. It has two functions: ordinary electric fan and air purification. ”

Liang Yuan once used the air purifier produced by Philips, and admired Philips for making the air quality display ring in the upper left corner of the air purifier. Known as the "Oscar" of the design industry, the German Red Dot Design Award.

It would be too brutal not to take out this kind of laborious thing and copy it, Liang Yuan thought happily.

After reading the sample, Liang Yuan and Su Liangyu returned to the office, Liang Yuan picked up a pen and paper and drew an appearance of the Philips air purifier in the future, and then wrote down the functions of the Philips air purifier he used back then on the paper in detail.

"Later, we will develop something that can humidify and can make negative ions. With the air conditioning fan, at least more than ten kinds of products can be made, and the product line of air purifiers is complete. Liang Yuan said as he handed the written materials and drawings to Su Liangyu.

"Now the AC motor control system is also considered to have some foundation, Lao Su to see if the whole system can be deepened, the power from a few watts to thousands of watts we take it slowly, in the future to integrate, to make a special AC motor speed regulation PLC is good." Liang Yuan said with some wistfulness.

"Xiaoyuan, according to your idea, the AC motor project team in the Yàn room must be expanded to at least 3,000 people. Su Liangyu stretched out his hand and took the drawing.

Seeing Liang Yuan nodding without hesitation, Su Liangyu smiled and said: "PLC is not the kind of way that Xiaoyuan said, the most important thing for PLC is a concise and easy-to-understand human-machine interface, a stable and reliable hardware structure, and an easy-to-use development program, but according to Xiaoyuan, if the speed control of the DC motor is also done, the electrical era will be completely in your hands." ”

Liang Yuan listened to Su Liangyu and smiled, knowing that he was a little anxious, for industrial automation in the electric era, when you can control the operation of the motor perfectly and freely, it means that there is no secret in front of you in the electrical era, because all industrial automation is completed by the motor.

Liang Yuan stood up and walked to the window, looking out the window at the snow-covered lake, watching the two loli glide lightly on the ice, stretching a big lazy waist.

Su Liangyu carefully looked at what Liang Yuan wrote, and then said: "Xiaoyuan, in order to realize these functions you wrote, this machine needs at least ten microprocessors, and it also needs to recruit a group of industrial designers to come in." ”

"Lao Su, that's your business. Liang Yuan planned to shamelessly shake his hands away.

"Xiaoyuan, I found out that I fell for you, and I remember that the job I applied for was to develop chips, and now it has become the development of home appliances. Su Liangyu said with a wry smile.

"The funds have doubled, Lao Su, you can get samples before the Canton Fair this year, and the funds for the real room will be doubled in the second half of the year. Liang Yuan said with a smile.

Su Liangyu thought about it and patted the table lightly and said: "This job is capable, but Xiaoyuan, don't be lazy years ago, this product was proposed by you, just such a simple appearance drawing is not possible, you have to draw the rough structural drawing, I am responsible for the electrical part, and you can figure out the structural part yourself." ”

Note 1: The innovation of the United States is really not covered, this thing can be created zào out, Manlou's mother is a doctor, I read medical journals when I was very young, and the unified caliber at that time was that the Beat Generation in the United States engaged in sexual liberation,** ,Homosexuality,And then the whole out of HIV,Later, as this thing spreads more and more,Become the number one killer of human health,Considering the impact of the image,The origin of AIDS was planted by white scientists on black Africa,It is also verified that there was this virus on the African continent in the last century,It's really TM speechless,Interested book friends flip through the history of AIDS,You will find a lot of things that can't be justified。 Now that the Beat Generation is in power, they won't admit that this thing is the greatest invention of their generation. (To be continued......)

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