Проектирование водоотливной установки шахты глубиной расположения околоствольного двора рабочего горизонта относительно поверхности земли 620 м, страница 3

H_г – геометрическая высота подъема воды из шахты, м;

H_г = 623,5 м (согласно с расчетами п. 3.3)

0,95 ·9 ·84623,5 м

718,5 м623,5 м – условие (1.6) – выполняется

    Учитывая выше сказанное, выбираем насос ЦНС 500 – 720и дальнейший расчёт произво­дим для него.

Параметры выбранного насоса:

1. Наименование насоса                                                    ЦНС 500 – 720                                                                                                                                                                                                                                                                                        2. Параметры номинального режима

производительность, м³ /ч                                         380 – 620                                                                                                                                                                                                                                                                                                                                                                                                                                                            напор,м                                                                     720                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 КПД                                                                          0,73                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                частота вращения, об/мин                                          1475                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        допустимая высота всасывания, м                              3                                                                                                                                                                                                               мощность, кВт                                                                                                 1600