In the paper, the formula of economic friction factor for hydronic heating system with intermediate boostingpump station and different laying mode is derived theoretically.
本文从理论上推导出带中间增压泵站、有不同敷设方式的热水供热网经济比摩阻的计算公式。
2
In the course of running of high-power magnetic driven boosting water injection pump, the magnetism of the permanent magnet may vanish at high temperature.
Because of superior performance of helical axial-flow multiphase pump, multiphase boost technology has taken the developing position for liquid-gas boosting technology recently.