水轮泵作为排灌机械具有投资省、节能、管理方便、收益大等优点。湖南省已建成万亩以上灌区水轮泵站41处,投资6900余万元,平均每亩47.6元。水轮泵建设费用低有两个因素:一是设备价格低,如一台100-8型水轮泵在4米水头时,其功率相当于6135柴油机的2 1/3倍,可是价格只有6135柴油机的一 Water pump as irrigation and drainage machinery with provincial investment, energy saving, management convenience, benefits and so on. Hunan Province has built more than 10,000 mu of irrigated water pumping station 41, 6900 million yuan investment, an average of 47.6 yuan per mu. Low cost of water pump construction has two factors: First, the low price of equipment, such as a 100-8-type water pump at 4 meters head, its power is equivalent to 6135 diesel 2/3 times, but the price is only 6135 diesel engine one of