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Changchun Weicheng Machinery Equipment Co., Ltd. - Creating a Breathable Living Space
Release time:
2021-12-07
Creating a Breathable Home ——Interview with Shang Zhizhong, General Manager of Changchun Weicheng Mechanical Equipment Co., Ltd. In March 2003, a large-scale SARS outbreak with sudden onset occurred in Amoy Gardens, Hong Kong. Among the 296 people who died from "SARS" in Hong Kong, residents of Amoy Gardens accounted for one-seventh! What caused the large-scale SARS outbreak in Amoy Gardens? Later, Hong Kong authorities conducted tests in a unit in Amoy Gardens and found that when the bathroom exhaust fan was turned on, the negative pressure generated by the fan directly caused air to flow back into the bathroom from the building's sewage pipes through the floor drain. These air currents may have spread aerosols from the sewage pipes into the bathroom, and the bathroom exhaust fan may have also discharged these aerosols into the courtyard, eventually causing the virus-carrying aerosols to enter other houses through windows, resulting in infection of people in adjacent units—this was the root cause of the SARS outbreak in Amoy Gardens in Hong Kong that year. After the incident, the term "negative pressure in houses" was taken seriously for the first time. How is negative pressure in houses formed? What harm does negative pressure pose to human health? What measures can we take to eliminate negative pressure and maintain a healthy living environment? With these questions in mind, we interviewed Shang Zhizhong, the developer of Qianjia ventilation constant pressure machine and general manager of Changchun Weicheng Mechanical Equipment Co., Ltd. The initial intention of the research and development was to allow people to live healthier lives What is systematic negative pressure? It is the phenomenon where the indoor air pressure is lower than the standard outdoor atmospheric pressure. Due to the principle of constant atmospheric pressure, low indoor air pressure will cause other air currents to supplement the indoor air, mainly through the sewer pipes, while other pathways are closed or have high wind resistance. The long-term accumulation of odors will have a permeation effect, causing some clothes, bedding, and textiles to have odors, causing health hazards and seriously affecting the quality of life. "Nowadays, the airtightness of buildings is getting better and better, and the exhaust power of range hoods and bathroom exhaust fans is getting larger and larger, which can cause systematic and intermittent negative pressure indoors. Negative pressure not only makes it difficult to open doors and windows due to backflow of odors, but also spreads viruses and causes irreversible damage to brain memory cells. It is an invisible killer of health in the new era." Like many Chinese families, Shang Zhizhong once deeply worried about the ventilation and air purification problems in his home. However, after years of experience in the machinery industry, Shang Zhizhong examined most of the household air purification systems on the market and found that: "Firstly, the functions of air purifiers mainly focus on dealing with PM2.5, while the functions targeting volatile organic compounds are much less prominent; secondly, most air purifiers use activated carbon adsorption, and due to the limited adsorption capacity, the filter needs to be replaced frequently, otherwise, the activated carbon saturated with formaldehyde will continuously overflow and release, becoming a source of poison. Some ventilation systems also require a large amount of piping to be laid throughout the room, requiring high indoor ceiling height, complicated engineering, and for already renovated houses, especially older houses that have been occupied for many years, it is almost equivalent to completely renovating the entire house, which is almost impossible to achieve." "Even for me, an insider, it's so difficult to give my family a healthy breathing environment. China is so large, with so many families, so many elderly people and children, what can we do? How many years will it take for air environment management to improve?" This thought lingered in his mind and became a "heart disease" for Shang Zhizhong. If there's nothing on the market, then let's make it ourselves! Since this flash of inspiration appeared in Shang Zhizhong's mind, his heart has never been calm again. Shang Zhizhong did not rush into success, but first explored the technology, starting with building his own research team. To this end, he invested the savings from his many years of work, visited dozens of "big names" in the ventilation technology industry, and after many twists and turns, finally established his own R&D team. From 2016 to 2021, he and his R&D team members worked day and night in the laboratory. After 5 years of R&D, countless experiments, tests, polishing, and iterations, the Qianjia ventilation constant pressure machine was finally successfully developed. The principle of the Qianjia ventilation constant pressure machine is to use a carefully designed multi-stage filtration system and the scientific principle of slight positive air pressure, with the main unit paired with a "Breathing Treasure" to promote the flow of clean air, achieving "metabolism" of indoor air, allowing oxygen-rich fresh air to enter every corner of the room. A Jilin University professor who has close contact with Shang Zhizhong used a well-known Japanese brand air purifier in his home for two years, and frequently encountered readings exceeding the normal range. After inspection and research by Shang Zhizhong's technical team, an emergency solution was provided to the professor: installing a household constant pressure machine. After 24 hours of using the constant pressure machine, the air quality readings in the professor's home finally returned to the normal range, and the problem that had plagued the professor and his family for a long time was successfully resolved. Shang Zhizhong and the Qianjia ventilation constant pressure machine also gained their trust. In the new ventilation industry with numerous brands, why was Shang Zhizhong able to easily solve problems that had plagued other companies for years or even decades? This is inseparable from Shang Zhizhong's adherence to the new ventilation industry, and more importantly, Shang Zhizhong's cultivation of talent and innovation in technology.
Creating a Breathable Abode
——Interview with Shang Zhizhong, General Manager of Changchun Weicheng Mechanical Equipment Co., Ltd.
2003Year3Month, Amoy Gardens in Hong Kong experienced a sudden outbreak of SARS involving a large number of people.SARSIn Hong Kong, due to"SARS"Among the list of296deceased patients,"Amoy Gardens"residents accounted for one-seventh.！What caused theSARSlarge-scale outbreak in Amoy Gardens?LaterHong Kong authorities conducted tests in a unit within Amoy Gardens and found that when the bathroom exhaust fan was turned on, it created negative pressure, directly causing air to flow back into the bathroom from the building's sewage pipes via the drain. This airflow may have dispersed aerosols from the sewage pipes into the bathroom, and the bathroom exhaust fan may have discharged these aerosols into the courtyard. Finally, the virus-carrying aerosols entered other houses through windows, causing infection in adjacent units.——This was the root cause of theSARSlarge-scale outbreak in Amoy Gardens.
After the incident,the term "house negative pressure" was brought to people's attention for the first time. How is house negative pressure formed? What harm does negative pressure bring to human health? What measures can we take to eliminate negative pressure and maintain a healthy living environment?
With these questions in mind, we interviewed the developer of Qianjia ventilation constant pressure machine——Shang Zhizhong, General Manager of Changchun Weicheng Mechanical Equipment Co., Ltd.
The initial intention of the research and development was to allow people to live healthier lives.
What is systematic negative pressure? It is the phenomenon where the indoor air pressure is lower than the standard outdoor atmospheric pressure. Due to the principle of constant atmospheric pressure, low indoor air pressure will cause other air currents to supplement the indoor air, mainly through the sewer pipes, as other pathways are closed or have higher wind resistance. The long-term accumulation of odors will have a permeation effect, causing some clothes, bedding, and textiles to have odors, causing health hazards and seriously affecting the quality of life.“Nowadays, the airtightness of buildings is getting better and better, and the power of range hoods and bathroom exhaust fans is getting bigger and bigger, which can cause systematic and intermittent negative pressure indoors. Negative pressure not only makes it difficult to open doors and windows due to backflow of odors, but also spreads viruses and causes irreversible damage to brain memory cells. It is an invisible killer of health in the new era.”
Like many Chinese families, Shang Zhizhong once deeply worried about the ventilation and air purification problems in his home. However, after years of experience in the machinery industry, Shang Zhizhong examined most of the household air purification systems on the market and found:“Firstly, the functions of air purifiers mainly focus on dealing withPM2.5while the function of dealing with volatile organic compounds is much less prominent; secondly, most air purifiers use activated carbon adsorption. Due to the limited adsorption capacity, the filter needs to be replaced frequently, otherwise, the activated carbon saturated with formaldehyde will continuously overflow and release, becoming a source of poison,Some ventilation systemsalso require a large amount of piping to be laid throughout the room, requiring high indoor ceiling height, and the workload iscomplexFor houses that have already been renovated, especially older houses that have been occupied for many years, it is almost equivalent to renovating the entire house, which is almost impossible to achieve."
“Even for me, an insider, it’s so difficult to give my family a healthy breathing environment. China is so big, with so many families, so many elderly people and children, what?How many years will it take to improve the air environment?This thought lingered in Shang Zhizhong’s mind, almost becoming a ‘heart disease’ for him.
Since there is nothing on the market, let’s make it ourselves! Since this flash of inspiration appeared in Shang Zhizhong’s mind, his heart has never been calm again. Shang Zhizhong did not rush into it, but first explored the technology, starting with building his own research team. To this end, he invested the savings from his years of work, visited dozens of experts in the ventilation technology industry,“big names”, and after several twists and turns, finally formed his own R&D team. From2016year to2021year, he and his R&D team members worked day and night in the laboratory.5After years of R&D, countless experiments, tests, polishing, and iterations, the Qianjia ventilation constant pressure machine was finally successfully developed. The principle of the Qianjia ventilation constant pressure machine is to use a carefully designed multi-stage filtration system and the scientific principle of slight positive air pressure. The main unit is equipped with a breathing treasure to promote the flow of clean air, achieving the ‘metabolism’ of indoor air, allowing oxygen-rich fresh air to enter every corner of the room.
A Jilin University professor who has close ties with Shang Zhizhong used2years of a well-known Japanese Brand air purifier, and frequently encountered readings that exceeded the normal range. After inspection and research, Shang Zhizhong’s technical team provided an emergency solution for the professor: installing a household constant pressure machine. After using the constant pressure machine for24hours, the air quality readings in the professor’s home finally dropped to the normal range, and the problem that had plagued the professor and his family for a long time was successfully resolved. Shang Zhizhong and the Qianjia ventilation constant pressure machine also gained their trust.
In the new wind industry with numerous Brands, why can Shang Zhizhong easily solve problems that have plagued other companies for years or even decades? This is inseparable from Shang Zhizhong’s persistence in the new wind industry, and more importantly, Shang Zhizhong’s cultivation of talents and innovation in technology.
Key words:
Qianjia ventilation constant pressure machine
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