旋风风能提水系统的研究

旋风风能提水系统是一种新型风力提水系统，该系统由旋风塔和气压差提水装置组成。气流进入旋风塔后产生强涡，于是在其底部形成低压区域，气压差提水装置则利用此低压条件实现提水的目的。本文对这种风力提水系统进行的模型实验研究作了介绍。实验表明：旋风风能提水系统在原理上正确。在旋风式风能系统的旋风塔出口处配以扩压器和降压挡板，可以成倍地降低旋风塔底部压力系统，从而大幅度地提高风力透平功率。为说明扩压器及挡板效应，分别对一般旋风塔和配有扩压器及挡板的旋风塔进行了对比试验。结果表明，后者与前者相比，塔底中心压力系统的绝对值高出约300％，透平功率高出约70％。本文最后对于该系统的实用化问题进行了深入讨论并指出了进一步的研究方向。

Investigation of tornado-type wind-powered water-pumping system

Tornado-type wind-powered water-pumping system is a newly developed system. It consists of tornado-type tower and pressure difference water-elevating device. The flow entering the tower forms a strong vortex which creates a low pressure region at the bottom of tower, and this low pressure makes it possible for the pressure difference water-elevating device to lift water. The paper focuses on carrying out a series of model tests of the new type of wind-powered water-pumping system. The results of the tests show that the principle of the system is correct. By means of allocating a diffuser and a baffie on the outlet of the tornado tower of the tornado type wind energy system, the pressure coefficient at the bottom of the tower may be dropped by several times, and hence increasing the power of the wind turbine. In order to determine the effects of the diffuser and the baffie experiments were made on the ordinary tornado tower and the tower with diffuser baffie attachment respectively. The results of the experiments indicate that for the two systems, the pressure coefficient in the bottom center of the tower of the latter is greater than that of the former by about 300 %, and consequently the power of the turbine of the latter is greater than that of the former by about 70 %. Finally, the feasibility of the system is discussed and suggestions are proposed for further research in this area.