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 Wysłany: Nie 21:16, 23 Sty 2011 Temat postu: North Water Transfer Project in Jiangsu Province p |
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North Water Transfer Project in Jiangsu Province pumping preliminary analysis of pumping costs
The average cost of p, p Pianku, p partial abundance, the results shown in Table 5. Table 5 cases of different types at all levels in the water pumping station unilateral total pumping costs Table 0.01 yuan / m34 Analysis and Conclusion The analysis of the results of these models, you can draw the following conclusions: (1) step by step from the pumping station to Jiangdu solution stations, in the range of water and no runoff is not only the case of water loss, Jiangdu station pumping flow 124.58m3 / s,[link widoczny dla zalogowanych], the solution can be up to the station 44.38m3 / s traffic. After years of average water, Pianku year type, partial harvest-type situation, a unilateral solution of water stations were pumping costs accrued at least 0.1283 yuan / m3, 0.1263 Ԫ / m3,[link widoczny dla zalogowanych], 0.1371 Ԫ / m3. Because the model uses only the river water evaporation loss, leakage and other natural losses, not including stops along the Han and other water leakage and loss of lock, the actual loss of water flow is much larger than this, and because of the Jiangdu a Soap Creek pump station's pumping capacity is far greater than the actual model of the pumping, so the quoted text at all levels of the water pumping station cost of the class P of unilateral low. Therefore, the model of unilateral pumping water from all levels of the cumulative cost of only the lower limit of pumping, in the actual transfer process, its value is greater than the value. (2) accumulated by the water pumping costs unilateral concept and calculation method is not difficult to come: the first steps with the first i i +1 unilateral cascade of water is equal to the difference between the cumulative cost of pumping the first step of the level i +1 unilateral water pumping costs, and �� Q brought the cause of unilateral and water pumping costs. That is, the following formula: p + l-P = p �� + Pi + l (6) Box: Compliance PAQiPi + l-Pi-Pi + l (7) where P snail - �� Ql due to water loss caused Interval unilateral water pumping costs (0.01 yuan / rn3). From (7),[link widoczny dla zalogowanych], type the same year, the interval can be Debu water loss caused by unilateral water pumping costs, see Table 6. Table 6 under different types of water loss due to the range of water pumping costs caused by unilateral Table 0.01 yuan / n4 Huai'an Jiangdu Station to Station interval AQ. 0.250.230.31 Huai'an Station to Station interval AQ20.490.460.59 Huaiyin Siyang Huaiyin stand a station interval AQ30.740.700.89 siyang stand a range of AQ40.410.390.45 Liulaojian Liulaojian station station ~ Soap Creek Station interval AQ50.710.700.80 soap River Station to North Station interval AQ60.750.720.80 Liu Shan Liu Shan North Station to station interval AQ71.301.271.42 Total Solutions 4.654.475.26 North Water Transfer Project line of water loss due to water pumping costs caused by unilateral, in the multi-year average, Pianku, partial Feng cases, respectively 0.0465,0. O447, 0.0526 Ԫ / rn3, accounted for under the corresponding pattern in the total solution of water pumping stations, the cost of a unilateral 36%, 35.4%, 38.7%. Thus, reduction of water loss is to improve the pumping efficiency and effective means of water supply benefits. (3) the pumping of the pumping costs of the class includes only run electricity, staff salaries,[link widoczny dla zalogowanych], general maintenance and other, excluding depreciation and major repairs. Water pumping costs caused by losses in the water along the river did not consider the operation and maintenance costs. Even without considering depreciation river engineering,[link widoczny dla zalogowanych], overhaul and other expenses. Therefore, this article analyzes the cost is not fully charged. (4) If the pump price of industrial electricity price by 0.64 per non-S & P / kWh meter, in accordance with the State Council, of 2.53 times the cost of pumping. Mouth
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