以200mm管徑測量水為例,運行時間按360*24計算，電費按每千瓦時0.5元計算。其中*壓力損失為不同管徑、不同壓力條件下國家規(guī)定的允許數(shù)值，而實際運行中的壓力損失值遠(yuǎn)遠(yuǎn)大于這一數(shù)值。

孔板壓力損失（KPa）   質(zhì)量流量（t/h）    能耗（KW）  年運行費用（萬元）

                           10                        500            1.74        0.75

                                                    700            2.43        1.05

                                                    900            3.13        1.35

                           20                        500            3.48        1.5

                                                    700            4.86        2.1

                                                    900            6.26        2.7

                           30                        500            5.22        2.25

                                                    700            7.29        3.15

                                                    900            9.39       4.05

                           40                        500            6.96        3

                                                    700            9.72        4.2

                                                     900            12.52       5.4

以下為用到的公式：

孔板的壓損公式：Δω=（1-β1.9）ΔP

W=(Δω·Qkph)/（3.6ηρf1）

年耗能費（RMB/年）=（W/1000）×（運行時數(shù)/年）×（？元/千瓦小時）