What blower manufacturers specifications varieties and affordable yet good quality? Weathervane brand drum ..

Edit: Standard Electrical Co., Ltd. Shenzhen wind turbine experts more price and specifications, please visit our Ali official website: http: //fbemf2014.1688.com/ blower which manufacturers specifications varieties and affordable yet good quality? Weathervane brand blowers are not better? We need to promote the use of pairs of rotating blades in the swept diameter of the impeller ranging from technology and technology for summary analysis. Swept blade is not what "cause a revolution in manufacturing the fan." In fact, back in the early 1960s, the Harbin Institute of Technology Professor Wang Zhongqi proposed design ideas and techniques that the blade, and successfully applied to the high pressure ratio and multi-stage axial compressor turbine, high pressure ratio turbomachinery efficiency of about 2% [21]. For the purposes of axial fan, either rotating or non-rotating, their pressure ratio is typically less than 1.05, the reference Mach M≤0.15 [26]. Therefore, neither bent blade axial fan (air flow - turning, moving blade root is not greater than 35 °, stationary blade root is not greater than 40 °, the side walls of the secondary flow loss is small), and without grazing (small M number, Shock resistance loss does not exist) [4,21]. Swept blade on the performance curve of spin given by the sample showed that: swept swept rotating and non-rotating performance no difference, exactly the same [24]. Domestic individual enterprises to rotation, is to work to get grade-level counter-blade Ⅱ blade. Thus, in addition to the different direction of rotation and the number of leaves outside, Ⅰ, grade Ⅱ blade width distribution, thickness distribution and angular distribution of the same twist (the twist angle is a breach of the same vortex aerodynamic design theory) [27]. The results showed that: such low efficiency of spin. Thus, Helpless, manufacturers unjustified lengthening the stage Ⅱ blade that increases the level Ⅱ impeller diameter (compared with grade Ⅰ), while the level Ⅱ hosts tube design, manufacture tapered cone shape, This is called unequal diameter impeller technology. However, this approach will inevitably lead to more failure error fan performance. This tells people: When there is no necessary relationship between the basic parameters of logic, will often result in self-contradiction. The fundamental characteristics that do nothing to change the essence of all the make up and the correction can only be temporary, ineffective and wrong. Unequal diameter impeller technology is.