The new cotton spinning suction blower saving principle of traditional cotton spinning suction fan structure is split open impeller (a low-efficiency fan), the impeller body (including the blade) rotate coaxially with the motor, and the front cover is fixed to the suction cotton the boxes are left between the rotating blades and the stationary front cover space, most of the new machine 0.5-1.5mm, after the demolition of the motor impeller deformed refueling and maintenance times will increase the gap to 3-5 mm, resulting in decreased negative pressure fan also causes the flute pipes on the new machine and the old machines are inconsistent. And it is equipped with motor power 2.2KW, normal power flow in 3.4-3.6A. Now the new Suction fan, for example, a, they use a whole wheel (aluminum whole front, rear and leaves no gap) rotates together with the motor rotor, reduce wind losses, provide motor efficiency; Second, the use has volute wind Tao, an increase of static and dynamic pressure of the wind, thereby increasing negative pressure, fan efficiency than the original increase of about 50%. After nearly two years, many domestic textile enterprises to use, 1.1KW motor power Suction fans can meet or exceed the original front rear suction 2.2KW old fan, current consumption is about 1.7A, energy savings of about 50%. Suction fan market new cohabitation, when cotton suction fan selection must pay attention to determine its current, 1.1KW motor rated current is generally about 2.3A, some cotton suction fan currents up 2.0-2.3A, when the current exceeds 1.8A, it depends full load operation, the motor life shortened, to carefully selected. 

palabras clave: Spinning, cotton suction fan, TRW textile,