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Hengquan Reservoir Comparison of three schemes of industrial water supply


4 pumps often work under the conditions, t prepared just pumps. KQSN300 a N6-based pump design head 84In, single pump motor power 250kW, enhance lnl 'water needs power 0.36kWh, nl 21 million per year needed power supply 7.56 million kwh. In order to prevent the flow of water is small when the tube pressure head tube larger adverse effect on the booster pump station} II is the case, the water pipe into the pool before the water booster pumping station in the pipeline before the end of Block 1 decompression set valve chamber, the pressure inside the head tube to eliminate the adverse effects. Recommended pressure pump construction area 30mx9In (by _T industry standard design factory), the management 45m2o booster pump station buildings covering civil engineering, mechanical and electrical equipment investment and temporary construction cost L} {investment in 400 million. Option 3 project total investment reaching 86 million yuan, the annual running costs estimated 6.9 million yuan, and its hydraulic calculation in Table 3. Taking these three kinds of water delivery program analysis, program a one-time civil engineering and 3 l Option 3 hydraulic pipe diameter pipe flow calculation table, head end of the pipe remaining stationary terminal velocity / length,[link widoczny dla zalogowanych], m, m (ms) loss / m head / In Head / m (m / s) l4.5 glass pipe O. 8O. 720.7073.3352.63l39 glass pipe 0.8O. 7】 4.7955.7340.94l-39lOPCCPO. 8O. 730.8655.7377.50l-39l4PCCPO. 8O_342.27llO. ool52.271-39 the largest investment in equipment, the highest operating costs year after completion, water supply, economic efficiency is not satisfactory, according to the contract price 2.1 yuan, m, with the cost of income requires a minimum of 6.8 years; Option 2 one-time investment in civil works and equipment minimum, completion, its annual operating costs at least, but the annual maximum water supply 9460800 In, can only meet the minimum requirements of water supply contract, the amount of towels 15,600,000 In '60%,[link widoczny dla zalogowanych], resulting in the event of default fIj Party now, the cost of the same collection difficulties; program 3 one-time investment in civil works and equipment for home towel,[link widoczny dla zalogowanych], towels and other operating costs year after completion, water supply meet the requirements of the contract, the contract price 2.1 yuan, m revenue needs with the cost of at least 3.8 years. 3 Conclusions and recommendations Hengquan Reservoir T industry supply line full 52.5km, elevation changes along the terrain over 214.2nl, via l2 County, through the main city Lishi, water flow 0.5In / s for a 0.7m3 / s. After the above comparison of three technology programs, the proposed water supply scheme to take the first 3 options: to retain decompression Ii5 2 inch chamber, remove the valve chamber 3, set the pressure in the pipeline at the end pumping technology solutions. At the same time, must 52.5km T Hengquan Reservoir water supply pipeline industry, the impact of water hammer in a special calculation, the calculated results for the friends collected the necessary water hammer protection, the optimal closure rule for the valve to ensure that the entire water supply project safe operation, if necessary Hydraulic model test to be conducted. About the author: Wang Zengguo, male, born in 1976, graduated from Wuhan University in 1999 and investment in the economy of farmland water conservancy industry and brake industry, was ten, and learn a BA in Economics,[link widoczny dla zalogowanych], D engineers. [Received :2008-10-09] ComparisionofThreePlansofIndustrialWaterSupplyformHengquanReservoirWANGZeng-guoAbstract: AimingatthetopographyandstatusquoofthenewdeterminedindustrialwatersupplypipelinefromHengquanReservoir, combiningtherequestofwaterusers,[link widoczny dla zalogowanych], thepapercarefullyanalyzesassortedexistingproblemsandhiddendangers, comparesthreeplansofwatersupplyindatail. Finallyonewatersupplyplanisselected. Keywords: industrialwatersupplypipelinewatersupplyplanenergedissipationamountofwatersupply · 44 ·
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