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River levels accounted for cancellation to the pressure of water power research and application of PM

Water pressure in the preliminary design phase modulation to the way in which (continued on page 39) * 31 * Small Hydropower 2O09 No. 6 (Total 150) 4 transformation projects of water and the rationality of the impact of water 4 .1 can be used to water quantity, water quality analysis Chao-long reservoir is the actual annual average rainfall 1626nrllTl, multi-year average inflow 271 630 000 m3. In addition to the town water supply reservoir 25 million a year to outside m3 are used for power generation. Apart from power generation, abandoned water reservoir spillway there, according to statistics, from 1979 to 2005 a total of 16a abandoned flood water accumulated about 720 million disposable water m3. Therefore, the long years of imperial power plant reservoir to meet the average electricity consumption 239 760 000 m3, water and reliable water source. Very good water quality, water power generation to meet the requirements of the project, water source quality and reliable. 4.2 Analysis of water reasonably long average annual inflow reservoir Chao 271,630,000 m3, power station reconstruction scrapped after the reference flow of 20.2m3 / s, the total annual water use is 233.79 million m3, still have a surplus of water. Power of using hours to 3215h,[link widoczny dla zalogowanych], still higher than average use of small hydropower stations in our province the number of hours that the reference flow of water power is appropriate. After the water and power back to the original channel is still no water consumption, can have a greater economic efficiency, water more reasonable. 4.3 Impact of water after the power back to the original water is still the river, there is no consumption of water, power generation and downstream irrigation and water had no effect on the environment, and the downstream hydropower capacity of the units Di Hill from 2000kW to 2250kW Capacity . Therefore, the long-abandoned imperial power re sampan. ; Only. j only after construction is not only no effect on the downstream, but good for the downstream station, making the upstream and downstream flow of power to match. 4.4 Impact of Recession redevelopment of power station phased retirement, there is always l during the construction unit to generate electricity, keep the water downstream, does not affect the downstream water. 4.5 Water Quality Impact Analysis of reconstruction of this station scrapped the original equipment is replaced,[link widoczny dla zalogowanych], does not require excavation, blasting, dam, building, etc., and not involve land acquisition, civil works such as the relocation of migrants and the environment circumstances, does not produce exhaust gas, waste water and dust and other pollutants, it will not adversely affect water quality. 5 Conclusion The reconstruction of water power station abandoned water reservoir for the long-Chao, the reference flow of 20.2m3 / s, the total annual water use is 233.79 million m3, power generation and back again after the original river water, river water is not consumed, but also will not cause water pollution. Therefore, the water reasonably practicable, water water water, water quality, reliable, withdrawal of water to meet the requirements, water use is reasonable, power supply and demand to ease tensions Xinchang County, to promote regional economic development is of great significance. ● Lv Jianping (1962 a), male, senior engineer, engaged in work station design and technological innovation. Email: jplu @ llI ℃ shp. o Shu Su Jian Gu (1962 a),[link widoczny dla zalogowanych], male, engineer, deputy director of long-Chao reservoirs, mainly in reservoir management. Email; ~ jg2o88 @ 163. eom Editor Wu Hao (Continued from page 31) to cancel the air compression system and their corresponding operating systems automatically, saving the equipment investment and energy. According to analysis,[link widoczny dla zalogowanych], run-time unit for active modulation of the hair loss and reactive power on, full of hair, the wheel rotating in the air about 4% of the rated active power, which is a significant economic power benefits. 4 Standardization of the results of the plant was put into operation in 1993, in the subsequent operation of the actual phase modulation, phase modulation method proved fully meet the system requirements for running the power station phase modulation, with a flexible operation, convenient features, has its representative; and The results of our hospital in 1994 by the QC team Achievement Award, in April the same year, construction in Hubei Province QC outstanding achievements third group. Where the run-of-station, in the dry season if the phase modulation of the turbine runner tail water level higher than normal, may cancel the way to the pressure of water phase modulation, phase modulation instead follows. 1) wet season. Can start using disposable water unit, into power in parallel operation, you can turn phasing conditions, this time not with a full load to receive, nor the effect of energy consumption. 2) the dry season. Start Unit, into power in parallel operation, then the turbine guide vanes closed, driven by the system unit to run for PM. ■ Wang Guoqin (1963 a), male, high Z. X-engineers, mainly in water conservancy project planning and design work. E Ⅱ 1ail: Wanggq1963 @ yahoo. coa1. Editor bong ca 39 *
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