Today, Liu Yingjian, who "does not obey the old", is still fighting in the front line of scientific and technological innovation, with the scientific spirit of seeking truth and pragmatism, the courage to start a business with perseverance, and the innovative spirit of pursuing excellence, trying to find a "solution" in the field of air environmental protection in China.
Liu Yingjian, a zhongguancun entrepreneurial hero and founder of Hanwang Technology, is doing something that looks crazy, from an idea to the launch of a generation of products, he led the team for nearly a decade to provide solutions for China's smog control. Recently, Liu Yingjian, as the chief scientist, successfully developed the outdoor purification product "Atmospheric Haze Emergency Purification System" unveiled. He said: "We have to do not only the world factory, but also the world park." ”
Speaking of Liu Yingjian, it is not so much that he is famous for the success of the company, but rather that his dedication and love for science and technology have been recorded in the annals of history. It is precisely because of him that he created an era of Chinese character handwriting recognition, and the Chinese people can travel in the network with a "Hanwang pen"; it is precisely because of him that handwriting recognition technology won the first prize of the National Science and Technology Progress Award, and Hanwang challenged international giants such as Microsoft and Apple under his leadership. From handwriting recognition of Chinese characters to painting boards, from electric paper books to air purifiers – with the spirit of not accepting defeat, Liu Yingjian has won respect.
Nowadays, Liu Yingjian, who has white sideburns, can completely "retreat to the second line" and enjoy applause and a comfortable life. However, as a scientist, he is still fighting in the front line of scientific and technological research and development. The martyrs are in their twilight years and their hearts are full of excitement. Liu Yingjian hopes to use science and technology to let the people enjoy "welfare" again, because of more blue skies and more happiness.
In recent years, due to the frequent occurrence of smog in large cities, the problem of air quality has attracted much attention - smog, which has become a pain in people's hearts. Since 2011, Hanwang Technology has set up a research and development team to enter the field of air environmental protection and officially declare war on smog.
A sentence by Premier Li Keqiang deeply touched Liu Yingjian: "Don't wait for the wind and rain to control the haze, but take the initiative to attack!" In Liu Yingjian's view, "If the air is not good, everything is empty talk." He waved a big hand, and his eyes revealed a decisive strength: "The so-called 'the rise and fall of the world, the piaf has the responsibility', I think of this age, what can I do?" Then use technical means to provide a little help for the control of smog. After all, we not only work in Beijing, but also retire here in the future! ”
Under the leadership of Liu Yingjian, Hanwang Technology has made great progress in the field of air purification, and the R&D, production, marketing and marketing systems have been gradually established, and the accumulation of technology has also become a "moat" in the field of air purification, not only developing a number of innovative technologies with independent intellectual property rights, but also declaring dozens of invention patents. At present, it has penetrated into the air particle detector (haze meter), large-scale indoor purification, household purification, outdoor purification technology and other air purification fields.
As a research result of Hanwang's outdoor purification technology, the "Atmospheric Haze Emergency Purification System" came into being - this was originally a bold idea of "mad scientists", "Instead of waiting for the wind to come, it is better to take the initiative to create wind." "Now after becoming a product through several experiments, Liu Yingjian is also very proud." Scientific and technological innovation, people will win the day! "It's his firm credo. Liu Yingjian hopes that Hanwang's technology and products can help Beijing control air pollution and build the capital into the most livable city in the country.
"Let the blue sky stay" - this is also the dream of many people.
City box
Smog mainly appears in cities, because affected by automobile exhaust and heavy chemical industry and other factors, the economic and social activities of high-density population will inevitably emit a large number of fine particulate matter, once the emission exceeds the atmospheric circulation capacity and carrying capacity, the concentration of fine particulate matter will continue to accumulate, at this time, if affected by static weather, it is very easy to appear a wide range of smog.
In Liu Yingjian's view, there is an obvious feature of urban smog days, that is, the air is relatively calm, the wind is small, the air is relatively non-circulating or low-speed circulation, and the pollutants generated by the production and life of the city and its surroundings are not easy to spread out, thus forming a smog weather.
Therefore, a "quasi-box model of urban gas" was built. "The urban area is fixed, and the thickness of the air sol on the city is relatively fixed, so the air volume of the city is also fixed." The pollution in the urban center is higher than that in the surrounding suburbs, which is equivalent to the relative independence of the polluter, forming a box. When convection occurs between the city boundary and the outside world, it is equivalent to air flow, producing natural purification. When severe pollution occurs, the air is less mobile and the city becomes enclosed inside the box. Liu Yingjian said.
In other words, it is based on such a model that becomes the principle of Hanwang's urban air purification system: inside this urban box, a certain amount of atmospheric haze purification equipment can be used, and when the weather begins to be calm, the atmospheric haze purification equipment can be opened, and the PM2.5 particles in the purified air can be grasped to prevent the continuous accumulation of particulate matter in the atmosphere and form a serious haze weather, so as to achieve the purpose of air purification.
That is to say, the whole city is a box, what Hanwang wants to do is to purify the air of the whole city, in the case of air capacity and emission factors, through the increase of adsorption factors, reduce the molecules of emission factors, thereby improving the air quality index - Hanwang Technology's "atmospheric haze emergency purification system" research and development, is around improving the adsorption capacity of emission factors.
"In the past, the factors for reducing emissions were mainly based on natural wind and rain, and some of them may have settled on trees, without using artificial methods. If there is no wind, the natural purification factor is gone, and the pollution will become more and more serious. We have this is the emergency purification program, through the artificial way to eliminate smog. ”
Moving an air purifier from indoors to outdoors, from a relatively confined space to eliminate smog to an open space to reduce emissions, is it a "crazy idea"?
Liu Yingjian said: "Because there is a night, so human beings invent electric lights; because there is cold and warm, so humans invent air conditioning; because there is air pollution, so we invented outdoor purifiers." ”
Many people may laugh it off, but Liu Yingjian doesn't think so. If you have the opportunity to try it, even if it fails, at least you can get proof. Giving up without trying, it's not his style. "What is success? It is to walk all the roads to failure, and there is only one road left, and that is the road to success. ”
The man who makes the wind
Today, Hanvon Technology's "Atmospheric Smog Emergency Purification System" has also become a reality from an idea - this machine that condenses the painstaking efforts of scientists is installed on the roof of Hanwang Building and waiting to be introduced to the market.
"This purification system uses microstatic technology, using two-stage electrostatic precipitation filtration, so that the air particles are charged and captured in an efficient manner." Liu Yingjian said that in the capture of particulate matter, Hanwang Technology adopts the innovative Archimedes spiral dust accumulation frame, and the dust accumulation sheet uses polymer co-extrusion technology to prepare a polymer material dust sheet with one side of insulation and one side of conductivity, and uses this technology to solve the problem of high ozone and creepage ignition of electrostatic dust accumulation technology, and the production process is simple and very suitable for the production of large-scale products.
The working principle of the purification system is divided into three stages, in the initial effect of the filtration section, that is, to filter out the large particles in the air, fly floc and other large impurities; in the ionization section, smaller particles in the passage, under the action of the high-voltage electric field, ionization, so that the particles charge; in the dust collection section, charged particles are adsorbed on the dust plate with opposite polarity, the working voltage of the dust collection frame is between 8000-12000V.
"I have a habit of walking, but in the smog weather, there is no way to go out because I am worried about the impact on my body. If an outdoor air purification system is installed, this problem can be solved. In Liu Yingjian's view, what Hanwang is doing is a "conscience project", if through energy conservation and emission reduction, it can reduce or eliminate smog, haze meters and purifier markets are affected or the industry has disappeared, "This is definitely a good thing!" ”
However, if in the extreme situation, "wait for the wind to come and not arrive", the "atmospheric smog emergency purification system" can come in handy: "This is an emergency plan, we want to simply 'wait for the wind' through technical means to achieve 'wind making'." ”
According to the data provided by Hanwang, this outdoor purification system is composed of 36 purification modules and 8 high-power fans, the overall equipment size is 6×2.7×1.6m, the one-hour purification capacity is 200,000 m³, the one-time purification rate of PM2.5 reaches 98%, the comprehensive noise is less than 65db, and the single power is 3.8KW. Because this system adopts the principle of high-pressure electrostatic adsorption haze, while efficiently purifying PM2.5 in the air, it also has certain functions of disinfection and sterilization and odor removal.
"The effectiveness of the outdoor purification system can be tested, and we are confident." Liu Yingjian said that this set of equipment can be installed on the roof of buildings, park green belts, isolation belts and other places, without affecting people's normal work and life, modular production, but also easy to install and move.
In Liu Yingjian's view, in the case of severe smog, the "atmospheric haze emergency purification vehicle" is also indispensable as an outdoor air purification facility. "Some maneuverable forces, emergency response systems are also necessary." The Hanwang atmospheric haze purification system is installed on the special vehicle, which can determine the placement of the atmospheric haze emergency purification system according to the serious situation of the haze, and can also mobilize the atmospheric haze emergency purification vehicle to the place where the personnel activities are more intensive at any time to provide fresh air services.
"Hanwang Atmospheric Smog Emergency Purification Vehicle has a purification capacity of 200,000 m³ per hour, which can provide fresh air for the activities of 7,000 people. The working voltage of the emergency purification vehicle purification equipment is 220V/50Hz, the power is 3.8KW, and the ordinary civil electricity can be connected to normal work. ”
To implement the "clear water and blue sky project", it is necessary to sacrifice local interests, which is a contradiction. "The 'Atmospheric Smog Emergency Purification System' is one of the solutions, and I think it can be tried." Liu Yingjian said.
Looking for Bole
For severe haze weather, very accurate forecasts are now available. In the 12-24 hours before the arrival of the calm weather, the "Hanwang Atmospheric Haze Emergency Purification System" can be opened to adsorb and capture the tiny particle pollutants generated by life and production, prevent the continuous accumulation of tiny particle pollutants, and finally prevent the occurrence of haze weather.
However, problems also arise.
Taking Beijing as an example, to carry out outdoor air purification, the following conditions must be met: first, there must be enough equipment, this number may need to be calculated in tens of thousands; second, the density of the installation is high enough, each roof has it, to achieve grid dense; third, the purification capacity is strong enough, it is estimated that a single unit needs 200,000 m³/h purification capacity; fourth, the coverage area is large enough, the urban area within the fourth ring road is 300 square kilometers, and the urban area in the fifth ring road is 667 square kilometers - only in this way. in order to maintain good air quality levels.
"This requires government support, starting with a pilot." Liu Yingjian said that for this reason, they designed a "curved purification belt layout plan for the haze purification system". The pilot chooses to be in a densely populated, traffic-congested area, which can cover urban pollution sources such as transportation and life, while the buildings are dense, the roof is flat, and it is convenient to install outdoor air purification facilities, accounting for 302 square kilometers within the fourth ring road of Beijing, investing 50,300 sets, which can ensure that in the case of severe smog, the maximum value of air pollution in the pilot area does not exceed 100 micrograms / cubic meter.
"It's a very difficult thing to do, but we still have to keep trying. General Secretary Xi Jinping said: "Resolutely winning the blue sky defense war is the top priority, and it is necessary to take the obvious improvement of air quality as a rigid requirement, strengthen joint prevention and control, basically eliminate heavily polluted weather, and return the blue sky and white clouds and twinkling stars to the people." In recent years, all parts of the country have taken ecological protection and environmental governance as the top priority of their work, and the Party Central Committee has listed pollution prevention and control as one of the 'three major battles' to win the all-round well-off. This also gives us the firm confidence to make good products and give back to the country and society. Liu Yingjian said that if the relevant departments of the state have needs, Hanwang can contribute this system technology to contribute to the "blue sky happiness" of the people.
This is what the "scientist" Liu Yingjian is doing, looking a little crazy but full of affection. It is precisely because he commanded Hanwang Technology to become the first batch of "native-born" high-tech enterprises in Zhongguancun, with the enthusiasm of industry to serve the country, step by step, with scientific and technological innovation as the internal driving force for enterprise development and steadily moving forward. Today, Liu Yingjian, who "does not obey the old", is still fighting in the front line of scientific and technological innovation, with the scientific spirit of seeking truth and pragmatism, the courage to start a business with perseverance, and the innovative spirit of pursuing excellence, trying to find a "solution" in the field of air environmental protection in China.
Behind the madness, there is an admirable spirit of scientific exploration. I only wish Liu Yingjian's dream come true, and I hope that he will continue to write a wonderful life on this new stage.
Zhongguancun Magazine - New Economy, New Technology and New Culture
Follow us please press the QR code below
Stay tuned for the near future:
Yanqing Tuss star sports science and technology innovation park was established
Helan Mountain, rock paintings are talking about...