Fan is a habitual abbreviation for gas compression and gas transportation machinery. It relies on the input mechanical energy to increase the gas pressure and discharge the gas. Generally speaking, the fan includes a ventilator, blower, and compressor.
Fan Classification
Among them, the ventilator is a fan with a wind pressure of less than 15kPa under the design conditions; the ventilator is widely used for ventilation, dust exhaust, and cooling of factories, mines, tunnels, cooling towers, vehicles, ships, and buildings, boilers and industrial furnaces. Ventilation and induced wind. The blower is a blower whose wind pressure is within 15-340kPa under design conditions; the blower is widely used in various industries such as metallurgy, chemical industry, and fertilizer.
At present, the most widely used blowers in China mainly include blowers and Roots blowers. In 2018, the domestic output of blowers was 57,032, a year-on-year increase of 9.6%. Among them, the output of Roots blowers was 52,050 and the output of centrifugal blowers was 4,982. In 2019, the domestic output of blowers was 69,000 units.
At present, domestic blower industry companies are mainly distributed in Shandong, Jiangsu, Liaoning, Shaanxi, and other regions. There are 8 listed and listed companies involved in the blower business. At present, domestic blower competition is fierce, and an oligarchic pattern has not yet been formed. Large-scale blower companies continue to produce results in the exploration and innovation of new energy-saving and environmentally-friendly industrial technologies. The majority of small and medium-sized blower companies still remain in the low-end and low-value-added product field, which has become one of the pain points for the development of the blower industry.
The Application of Blower in the Field of Sewage Treatment Has Been Developed
At present, the biological method is generally used in sewage treatment, that is, the sewage is discharged into the biological aerated filter. Each layer of the filter is grown with different microbial groups, and the suspended matter and dissolved organic matter in each layer of sewage are respectively decomposed through metabolism. And nutrients such as nitrogen and phosphorus to achieve the purpose of sewage treatment. High-pressure centrifugal blowers are used for aeration in sewage treatment. Through aeration, oxygen in the air is dissolved in the water, or unwanted gases and volatile substances in the water are expelled into the air to promote the exchange of substances between gas and liquid. At the same time, it achieves mixing and stirring effects and promotes the growth of aerobic microorganisms. The water depth of the aeration tank of the sewage treatment plant is generally required to reach 7-8 meters, and the wind pressure of the fan must reach 7-9 meters underwater. The performance requirements of the fan are very high. If the aeration and oxygen supply are insufficient, the sewage treatment effect will be reduced, and the performance of the fan will directly affect the quality of sewage treatment. This type of fan is characterized by small air volume, high air pressure, high efficiency, and a wide adjustment range. Generally speaking, a sewage treatment plant with a daily processing capacity of 50,000 tons needs to be equipped with 4 high-pressure centrifugal blowers.
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Data shows that in 2017, 93% of the industrial agglomeration areas at the provincial level and above have built centralized sewage treatment facilities, and the newly added industrial distribution areas have a sewage treatment capacity of nearly 10 million cubic meters per day. In 2018, the number of urban sewage treatment plants will increase slightly. The daily processing capacity of sewage plants will reach 162 million cubic meters. According to the ratio of 4 high-pressure centrifugal blowers with a daily processing capacity of 50,000 tons, the high-pressure centrifugal blowers required for urban sewage treatment in China in 2018 The number is 12960 units. By 2019, the daily sewage treatment capacity of cities and counties in China will exceed 210 million cubic meters, and the length of sewage pipe networks will reach 570,000 kilometers.
Expansion of Downstream Application Areas, Blower Industry Is Expected to Continue to Pick Up
In the future, the continuous advancement of domestic distributed energy, waste-to-energy, sewage treatment, and air pollution control industries will further stimulate the demand for the blower industry. At the same time, looking at the competitive situation, the technological gap between domestic blower companies and foreign outstanding blower brands is gradually narrowing, and in the future, domestic blower companies will further occupy the domestic blower market share. Based on the above two points, the blower market still has a lot of room for development. It is estimated that by 2025, China's blower output will reach 86,800 units, and the blower output value will reach 3.7 billion yuan.
Efficient and Intelligent Will Be the Future Trend
In recent years, with the development trend of high-end, intelligent, and green domestic manufacturing, some blower companies have targeted the pain points of energy saving and consumption reduction that restrict the development of the industry. Improving efficiency and reducing energy consumption are the inevitable development directions of blowers. The impeller is the core component of the blower. The change of the cross-sectional shape of the impeller has a significant impact on the air volume, energy consumption, and noise of the fan. The optimized design of the impeller can reduce energy consumption.
The research and development of the air suspension blower is well combined with the future development trend. Once the machinery and equipment are officially put into work, there is basically no need for human guards and maintenance, and only the air suspension needs to be replaced regularly.
Air suspension blower motor adopts advanced core technology for air suspension centrifugal bearing, with high-performance positioning and reasonable price positioning. It is relatively cost-effective in the environmental protection machinery industry, so it is widely favored by the public.
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https://www.globalmarketmonitor.com/reports/569998-blower-market-report.html
Regenerative Blowers
https://www.globalmarketmonitor.com/reports/598373-regenerative-blowers-market-report.html
Centrifugal Blowers
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