Blade manufacturers have? Specifications varieties and affordable yet good quality? Weathervane Brand ..

Edit: Standard Electrical Co., Ltd. Shenzhen wind turbine experts more price and specifications, please visit our Ali official website: http: //fbemf2014.1688.com/ fan manufacturers have? Specifications varieties and affordable yet good quality? Weathervane brand is not better? About construction, installation and maintenance Currently, the domestic non-rotating Main mostly external motor, the motor is coupled through the long axis of the impeller, the so-called long-axis drive; while rotating Main mostly built-in motor, impeller and motor directly connected the so-called direct-drive. Asymmetric proponents believe, 1K, 2K's motor can not built-in, rotating the motor can not be external, and even asserted that foreign advanced 2K main fan motors are external; built-in motor is rotating the working principle and structure decisions [30]. While rotating the manufacturer said, direct-coupled motor and impeller rotating, simple structure, easy installation and maintenance. Both views are one-sided. In fact, for non-rotating, external motor can also be built, TLT's GAF non-rotating Main product use instructions made it clear that a motor with two kinds of external and internal transmission mode. For rotating, the motor can be built either external, the former Soviet Union BOд-16 type, namely OBB-84-84B type rotating Main of two motors is external, [3]. I believe that as the main axial flow fan motor internal or external, that is directly connected or are advantages and disadvantages of the long axis of the drive. Built-in motor for rotation, explosion-proof motor must be selected, and the need to deal with explosion-proof motor with good cooling structure design, especially for exhaust ventilation, you must set the cutoff chamber, the built-in electrical installation, removal and maintenance extremely convenience. In addition, the built-in motors are required to use expensive YBF series of special explosion-proof motor; for large diameter impeller, quality heavy, if still directly connected with the machine, the structure of the Forester is reasonable. For non-rotating motor external, just an ordinary motor, inexpensive, easy installation and maintenance; only the major axis of concentricity and coupling installation and adjustment gap slightly more complex. Under the conditions of modern technology, such problems are difficult to solve. Thus, the direct drive to spin to say simple structure, easy installation and maintenance are not reliable. Outdoor installation on the outdoor installation, without machine room, saving capital costs, said to be rotating advantage for users is no small temptation. I think, for a spin outdoor use is not a reasonable choice. If we say that small local coal mine main ventilator for use in outdoor use can also understand the words; so, large main fan coal mines to use in outdoor use is not appropriate, and it is at least the following questions: 1) by wind, sun, sand play, erosion and rain and snow cover, etc., seriously affect the life of the equipment; 2) increased maintenance cost of the device, cause great inconvenience to the workers of maintenance work; 3) as Modern mines, worth several million dollars to an important large-scale equipment, unobstructed exposed, it is highly irregular and beautiful, particularly the influence of modern corporate image. I was pleased to see that the newly created Bureau of Liaoyuan Coal Mine Longjiapu is a modern large-scale mine. In mine construction process, the company's leaders decided to spin the two diametrically mounted within 3.6m of bright and spacious factory. They believe that the longer term, one-time capital costs of investment and spend more is worth it, never let these two large human life important device to work in the open air. Today, Longjiapu coal mine have been completed and put into production. From afar, the tall house and mine host seamless whole building is very impressive. This is a typical case of a spin not use outdoor installation.