Discussed the pump pressure, installation of the balance valve and the design effectiveness of reversed returnwater system.
对水泵压力、平衡阀的设置、系统同程设计的有效性等作了初步的讨论。
2
The energy-saving results of these units can be further improved by widening the regulating range of the extraction pressure and by using tow-stage heating of district-heating returnwater.
扩大供热抽汽压力调节范围及采用热网回冰的两级加热,可进一步提高该型机组的节能效益。
3
In the heat-supply system with distributed variable frequency pump, there exists a zero pressure difference, at which supply and returnwater pressures are equal.