In modern industrial production, the air quality problem in factory workshops has always been one of the important difficulties perplexing enterprises. A sweltering environment will not only affect workers' work efficiency, but also may cause potential harm to their health. At the same time, poor discharge of waste gas will also pollute the surrounding environment, and may even lead to enterprises facing environmental protection penalties. Faced with these problems, a high-performance AC industrial centrifugal exhaust fan is becoming the key to solving the dilemma. Its powerful ventilation capacity of "refreshing the air in the workshop in 3 minutes" is redefining the air treatment standards of industrial workshops.
I. Centrifugal fan: "Air expert" in industrial-grade ventilation
The reason why centrifugal fans can become the core equipment for workshop ventilation lies in their unique aerodynamic design. Compared with traditional axial flow fans, centrifugal fans can suck in air axially and then throw it out radially at high speed through the centrifugal force generated by the high-speed rotation of the impeller, forming stable and strong air pressure. This design makes its wind pressure 3-5 times higher than that of axial flow fans under the same power, which is especially suitable for industrial workshops with complex pipelines and long-distance air supply needs.
Take a 7.5kW industrial centrifugal fan as an example. Its maximum air volume can reach 28,000 m³/h, which means it can complete air replacement in a 1,000㎡ workshop with a height of 3 meters in 3 minutes. More importantly, its total pressure reaches 1200Pa, which can easily overcome the resistance of a 15-meter-long pipeline, and can form an effective air circulation even in the corner of the workshop or in areas with dense equipment. This "strong power + high wind pressure" feature enables it to quickly discharge harmful gases with relatively large specific gravity such as welding fumes and paint volatiles, and timely disperse the hot air generated by machine operation, fundamentally solving the problems of workshop sweltering and waste gas retention.
II. Scene verification: Ventilation transformation effects of three typical workshops
(1) Machinery processing workshop: Get rid of the trouble of welding fumes
The welding workshop of a heavy machinery factory has long been troubled by smoke and dust. More than 200 welders work in arc light and smoke every day. The PM2.5 concentration in the workshop often exceeds 500μg/m³, far exceeding the occupational health standard (3mg/m³). After installing 4 centrifugal fans, through the "upper supply and lower exhaust" air flow organization design - fresh air is sent in from the top of the workshop, and dust-containing air is 抽出 by the fan through the ground air outlet, the smoke concentration can be reduced to below 80μg/m³ within 3 minutes.
The data after transformation shows that the number of complaints about welders' respiratory discomfort has decreased by 92%, the temperature in the workshop in summer has decreased by 4-6℃, and the employee attendance rate has increased by 15%. More surprisingly, due to the effective control of workshop humidity (from 75% to 60%), the corrosion rate of precision measuring tools has decreased by 70%, indirectly reducing production costs.
(2) Chemical workshop
Various harmful gases will be generated in the chemical production process, which pose a serious threat to the health and safety of workers in the workshop. A chemical enterprise adopted this centrifugal fan, and through reasonable layout of ventilation pipes, the harmful gases in the workshop were discharged in time and fresh air was introduced. After inspection by the environmental protection department, the waste gas emission in the workshop has met the national standards, and the enterprise has thus avoided penalties for environmental protection problems.
(3) Electronic production workshop
Electronic production workshops have high requirements for air cleanliness, and at the same time, the heat generated by equipment operation needs to be discharged in time. After installing this centrifugal fan in an electronic factory, the temperature in the workshop has been effectively controlled, and the concentration of particles in the air has also decreased significantly. This not only improves the working environment of workers, but also increases the yield rate of products, bringing considerable economic benefits to the enterprise.
The air problem in factory workshops has always been a difficult problem affecting production efficiency and workers' health. The emergence of this AC industrial centrifugal exhaust fan provides enterprises with an efficient, energy-saving and environmentally friendly solution. Choosing a suitable centrifugal fan is not only an upgrading of the production environment, but also a concrete embodiment of enterprises' practice of the "people-oriented" concept. When the air in the workshop is fresh and circulating, and the temperature is comfortable, the working state and production efficiency of employees will naturally improve - this is exactly the value brought by centrifugal fans that goes beyond ventilation itself.
