30 years ago, three Chinese students studying abroad in the United States encountered an "unsympathetic" landlady who demanded that they either stop cooking Chinese food or move out due to her fear of oil fumes.
The challenge did not defeat these three clever young people. Through studying the "range hood" above the stove and applying their professional knowledge, they personally created a near-suction type range hood. By directly covering the wok mouth in the negative pressure zone that sucks up oil fumes, the oil fumes were completely eliminated. Thus, the world's first range hood specially designed for Chinese kitchens was born - the famous "Old Smoke Gun".
Nowadays, every near-suction type range hood in the Chinese market has evolved from this technology. In order to solve the problem of oil fume emissions from high-rise residential public flues and open kitchens, they joined forces again and designed an "AI oil fume processor" at the University of Greenwich in the UK.
Zhongshan Calculus Technology Co., Ltd. is located in Xiaolan Town, Zhongshan City, Guangdong Province. It was established in June 2020 and is a legal entity that exclusively owns the patent and core technology of the AI fume processor series. The company integrates research, development, production, sales and service.
Calculus is using technological innovation to serve the fields of environmental protection, low-carbon, and carbon neutrality. Currently, the company has five product series: Quantum Separation AI Smoke Purifier, Zero-sum AI Smoke Purifier, Commercial Pollution-free Smoke Purifier, Zero-sum Engineering Environment Purifier, and Organic Toxin Control and Resource Equipment, which are leading the global market.
The company's founder and research team have spent thirty years at the forefront of scientific research in Europe and America, and have obtained a number of groundbreaking patents and core technologies in the fields of cooking fume treatment, VOCs purification, and organic toxin control and resource utilization. The Quantum Separation AI Smoke Purifier, which has been industrialized, truly achieves green, environmentally friendly, healthy, and low-carbon features. The Zero-sum AI Smoke Purifier is the preferred choice for kitchen ventilation systems in passive houses, low-energy houses, green construction, and other projects in China and 27 EU countries. The development of a commercial pollution-free smoke purifier is also on the agenda. In addition, their invention patents cover 38 European countries and the United States. The advanced, unique, and disruptive nature of their technology and products will undoubtedly make a greater contribution to humanity's environmental protection, low-carbon, and carbon neutrality efforts.
30+ years of professional research and development.
From fundamental theory to artificial intelligence, redefining Chinese kitchen solutions.Proposed the effective negative pressure theory for cooking fumes and designed the world's first side suction range hood at The Ohio State University in the United States.
Established the "Cooking Fume Generation Mechanism and Diffusion" model and proposed the theory of "high-quality doping-induced thixotropy".
Developed expanded fiber filtration technology and pressureless oriented sealing technology.
Established the "Cooking Fume Generation Mechanism and Diffusion" laboratory in Nanjing.
Realized the industrialization of side suction range hood - "Hengkong · Lao Yanqiang", completed the measurement of momentum boundary and volume definition of effective negative pressure zone for cooking fumes at the University of Greenwich in London.
Proposed the argument of "low air volume, high static pressure" for cooking fume suction and exhaust, proposed the calculus dynamic entrainment control theory, and developed the jet-focusing, fume-recycling, and energy-saving technology.
Developed an intelligent system for oil-free range hood and a noise reduction technology combining suction and exhaust oil fume silencer with static pressure box; designed a control circuit and computer control program to solve the problem of fan series connection.
Established the theory of "quantum relaxation absorption" and applied it to carry out mass user trials for the Quantum Separation AI Smoke Purifier; developed the Zero-sum AI Smoke Purifier and the pollution-free emission AI Smoke Purifier.
The new generation of leading kitchen product, Zero-sum AI Smoke Purifier, was born.
10 + NATIONAL AUTHORITATIVE PATENT
Dr. David Yang has spent 30 years pioneering the research on fundamental theory and artificial intelligence in Chinese cooking fume, and his original international invention patent (European Patent: 18880456.1) leads the trend of low-carbon and environmentally friendly technology for cooking fume treatment around the world.
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