Discussed the pump pressure, installation of the balance valve and the design effectiveness of reversed return water 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。
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.
对常压热水供热锅炉房的循环泵、回水自动启闭阀、膨胀水箱、大气连通管的设计选型进行了探讨。
In the heat-supply system with distributed variable frequency pump, there exists a zero pressure difference, at which supply and return water pressures are equal.
分布式变频泵供热系统中存在零压差点，该点供回水压力相等。
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