Application of air suspension centrifugal blower in sewage treatment industry
Publisher: Administrator Date：2021-03-04
In recent years, with changes in national policies and increasingly fierce market competition, energy conservation, emission reduction and reduction of energy consumption have become the primary tasks. In order to achieve a greater degree of environmental protection and energy conservation, air suspension centrifugal blowers have been developed in response to the industry and have achieved high-speed Development and market share.
The first sewage treatment plant in a city in Henan Province was built in 2002, with a daily sewage treatment capacity of 120,000. It consists of 3 sets of Carrousel oxidation ditch. The emission standard is lower than level 2. This year, the standard has been raised according to national requirements. The construction is A standard, the new process adopts MBBR process, the aeration method is changed from the original inverted umbrella-type surface aerator to bottom membrane tube aeration. The aeration fan originally used a certain brand of 250-hp Roots blower, the number of which was 4 ( 3 Use 1 preparation) Single machine, processing air volume 165m³/min, wind pressure 0.8bar, power 220kw, in actual application, the machine energy consumption is very high, noise is large, the cost of after-sales maintenance is high, causing the cost of the enterprise After the provision of many cases and on-site investigations of our company, we decided to replace 4 Luoci fans with 2 air suspension centrifugal blowers. Before the transformation, the total power of the oxidation ditch equipment was 880kW, and the actual working current was operated at constant pressure (press mode), Six control modes of proportional operation (PROPORTIONAL). After the transformation, the total power is 450kW, and the actual working current is 640A. Both the power and current of the equipment are significantly reduced, and the current is reduced by about 9%, which actually saves electric energy and has obvious economic benefits. In fact, in many cases, setting the power at 85 percent can meet the aeration needs and greatly reduce the operating power consumption.
The air suspension centrifugal blower is a widely used sewage equipment in the industry. It has a large consumption and low energy consumption, energy saving and environmental protection, which reduces the operating cost of the sewage treatment plant and has won the deep/degree trust of the industry!