轴流泵站水能利用分析与研究
发布时间：2018-10-10 10:45
【摘要】：对泵站水能利用进行分析,不仅对解决区域性灌溉、排涝及工农业用水问题起着重要的作用,而且能充分利用水能,对经济发展也有显著的帮助。随着江苏大型泵站的大量兴建与改造,对泵站机组的可逆特性进行了进一步的研究,通过利用下泄的水资源进行反向发电,不但成本极低,而且没有污染,也可以提供一部分急需电能。目前已有部分轴流泵站具备抽水发电的能力,但这些泵站在设计制造时仅以水泵的性能出厂的。虽然反转发电时,机组出力和发电效率明显偏低,但选用性能良好的水泵反转代替水轮机,运行性能还是较好的。 本文通过计算,同时对相关泵站模型试验数据进行分析比较,对泵站反向发电性能进行了研究。主要内容包括： (1)查阅文献和资料,分析泵站反向发电的可行性以及轴流泵站反向发电的特性,分析反向发电运行方式原理。 (2)分析刘老涧二站、泗阳泵站、皂河二站模型试验数据,确定水轮机工况下出水流道形式、叶片安放角度等对发电效率的影响,确定最优发电效率时的相关数据。 (3)在上述三个泵站试验研究的基础上,探究发电工况下水泵的水力特性,从而进一步研究反向发电运行方式,通过对各种运行方式原理的分析归纳,结合泵站实际情况进行计算,选择最优的反向发电运行方式。
[Abstract]:The analysis of water energy utilization in pumping stations not only plays an important role in solving the problems of regional irrigation, drainage and industrial and agricultural water use, but also makes full use of water energy, which is also of great help to economic development. With the large-scale construction and renovation of large pumping stations in Jiangsu Province, the reversible characteristics of pumping station units have been further studied. By using the released water resources for reverse power generation, the cost is very low and there is no pollution. It can also provide some much-needed electricity. At present, some axial flow pump stations have the capacity of pumping power generation, but these pumping stations are designed and manufactured only with the performance of water pumps. Although the generating capacity and generating efficiency of the unit are obviously low when generating power is reversed, the performance of the turbine is better if the pump with good performance is used instead of the turbine. In this paper, the reverse generation performance of pump station is studied by calculating and comparing the model test data of related pumping station. The main contents are as follows: (1) the feasibility of reverse generation of pump station and the characteristics of reverse generation of axial flow pump station are analyzed, and the principle of operation mode of reverse generation is analyzed. (2) the model test data of Liu Laojian second Station, Siyang pump Station and Zaohe Station are analyzed to determine the influence of outlet channel form and blade placement angle on power generation efficiency, and to determine the relevant data when optimal generation efficiency is obtained. (3) on the basis of the experimental study of the three pumping stations mentioned above, the hydraulic characteristics of the pump under the power generation condition are explored, and the operation mode of the reverse power generation is further studied, and the principle of the various operation modes is analyzed and summarized. According to the actual situation of pump station, the optimal operation mode of reverse generation is selected.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV72
本文编号：2261474
[Abstract]:The analysis of water energy utilization in pumping stations not only plays an important role in solving the problems of regional irrigation, drainage and industrial and agricultural water use, but also makes full use of water energy, which is also of great help to economic development. With the large-scale construction and renovation of large pumping stations in Jiangsu Province, the reversible characteristics of pumping station units have been further studied. By using the released water resources for reverse power generation, the cost is very low and there is no pollution. It can also provide some much-needed electricity. At present, some axial flow pump stations have the capacity of pumping power generation, but these pumping stations are designed and manufactured only with the performance of water pumps. Although the generating capacity and generating efficiency of the unit are obviously low when generating power is reversed, the performance of the turbine is better if the pump with good performance is used instead of the turbine. In this paper, the reverse generation performance of pump station is studied by calculating and comparing the model test data of related pumping station. The main contents are as follows: (1) the feasibility of reverse generation of pump station and the characteristics of reverse generation of axial flow pump station are analyzed, and the principle of operation mode of reverse generation is analyzed. (2) the model test data of Liu Laojian second Station, Siyang pump Station and Zaohe Station are analyzed to determine the influence of outlet channel form and blade placement angle on power generation efficiency, and to determine the relevant data when optimal generation efficiency is obtained. (3) on the basis of the experimental study of the three pumping stations mentioned above, the hydraulic characteristics of the pump under the power generation condition are explored, and the operation mode of the reverse power generation is further studied, and the principle of the various operation modes is analyzed and summarized. According to the actual situation of pump station, the optimal operation mode of reverse generation is selected.
【学位授予单位】：扬州大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV72
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本文编号：2261474
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