Air Purifier blower more favorable price factory direct supply wholesale and retail! ! Model specifications ..

Edit: Standard Electrical Co., Ltd. Shenzhen wind turbine experts more price and specifications, please visit our Ali official website: http: //fbemf2014.1688.com/ blower air purifier more favorable price factory direct supply wholesale and retail! ! Model specifications and more varieties! The following information is taken from the network, for reference only! Compare the flow impeller outlet static coefficient of 0.17, 0.21, 0.222, 0.24, the average static impeller outlet are 447.709Pa, 125.162Pa, -280.507Pa, -169.725Pa. As can be seen from Figure 6: The Small Faces and non-Faces flow vane hydrostatic difference 800Pa; difference 600Pa large flow. It can be seen small flow static pressure suction surface and the pressure surface of the blade relatively large difference between large flow difference is relatively small, the smallest difference between maximum efficiency conditions can be estimated intensity of the low flow between the blades generate axial vortices larger than the large flow. As can be seen from the overall flow rate increases, the volute tongue along the flow direction of the gas at the start of the impeller exit static pressure is gradually decreasing. In a small flow static pressure is relatively high, up to 1230Pa, the average static pressure is 447.709Pa; when the large flow of up to 580Pa, the average static pressure is -169.725Pa. The main reason is the volute tongue out of the airflow at the outlet from the impeller, the flow path of a small space, energy in the form of static pressure exists; with the inner shell flow channel area is increased airflow to the diffuser. Compare volute impeller center line on the wall static pressure corresponding to the volute wall surface (see Fig. 1) starting from 0 ° axial section drawn along the flow of static graph in Figure 7. Flow coefficient of 0.17, 0.21, 0.222, 0.24, the average static volute wall are 948.403Pa, 650.771Pa, 477.798Pa, 370.562Pa. It can be seen as the flow increases, the volute wall static pressure is reduced. As can be seen from Figure 7: In the volute tongue of the static distortion occurs. Mainly because of the change in curvature of the volute tongue, and a small flow channel area, so variation in static pressure. Between 0 ° to 200 ° reduced static pressure gradient of small, at 260 ° to 360 ° increases static pressure gradient between 200 ° to 250 °, the reduced static pressure gradient is relatively large. This is mainly affecting the size of the volute and impeller flow channel area of ??the distance from the volute wall size. Compare selected outlet 5 position of the fan outlet velocity (Fig. 8a ①, ②, ④, ③, ⑤) and draw the velocity vector. As can be seen in the most efficient condition most uniform exit velocity magnitude further validates minimal loss overall. Away in ①, ② at speeds close to the volute tongue at large, and with the increase of flow coefficient, air speed is gradually increasing; in ④, ③, ⑤ near the volute tongue at the minimum speed at which because the position ①, ② facing the impeller, which is part of the flow from the impeller outlet to the outlet of the volute flow process without changing the axial air flow direction, at a position ④, ③, ⑤ airflow at near volute tongue at the farthest distance, maximum energy loss, the pressure here is minimal, resulting in airflow velocity is minimal. According to the direction of airflow velocity tilt can determine: airflow swirl at the exit. This is because the air from the impeller outlet flow volute, the sudden expansion of the flow channel space, air needs to change the direction of the axial flow, resulting in airflow swirling flow. It can be concluded: Speed ??exports is relatively large, and uneven flow stream for a bit confusing, so you should increase the diffuser at the outlet, try to recover more kinetic energy into static pressure to overcome the resistance of the pipe network.