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在一些中高水头长引水管道的水电站设计中,由于受到水锤压力和甩负荷时机组速率上升的限制以及电站稳定运行的要求,过去按设计规程常要求∑(LV)/H[L为水道沿程各段长度(米);V为相应平均流速(米/秒);H为最小水头(米)。]超过16～20时,就应在引水道上设置调压井(塔)。电站建造调压井(塔)投资大,工期长,消耗人力物力多,而且施工中容易出现人身事故;有的还因工程地质及水力枢纽布置上的问题,也使设置调压井(塔)十分困难。过去电站∑(LV)/H大于规范规定值时,有些电站采用水电阻器、爆破膜、调压阀等,但这时须详细
In some hydropower stations with medium-high headlines and diversion channels, the design requirements often require Σ (LV) / H [L for the waterway edge Cheng each paragraph length (m); V is the corresponding average flow rate (m / s); H is the minimum head (m). ] More than 16 ~ 20, it should be set in the diversion channel (tower). The construction of surge towers (towers) in power stations has a large investment and a long construction period, which consumes a lot of manpower and resources, and is prone to personal accidents during construction. Some also cause problems in the arrangement of engineering geology and hydropower hubs, difficult. In the past when the power plant Σ (LV) / H is greater than the specified value, some power plants use water resistors, bursting membranes, pressure regulators, etc., but this time shall be detailed