论文部分内容阅读
供热水系统和冷冻水系统的水力平衡是这些系统正常运行的重要关键。如果由于设计或施工中的不当而产生水力失调,各个支路及末端的实际流量较多地偏离设计流量,则运行中会产生不同程度的冷热不均,严重者将影响使用。在很多地方,为了弥补水力失调,往往采取加大系统循环流量的措施,可能对最不利环路起一点有限的作用,但是加大水泵的循环流量及扬程,将使电能的消耗大大增加。为了使一个异程双管水系统达到水力平衡,设计计算的正确性是首要的。如果设计计算存在严重错误而造成水力失调,要想通过调节的手段来克
The hydraulic balance of the hot water supply system and chilled water system is an important key to the normal operation of these systems. If the hydraulic imbalance occurs due to improper design or construction, the actual flow of each branch and the end deviates from the design flow, and there will be uneven degrees of uneven heating and cooling during operation. In severe cases, the use will be affected. In many places, in order to make up for hydraulic imbalances, measures are often taken to increase the system’s circulating flow, which may have a limited effect on the most unfavorable loops, but increasing the circulating flow and head of the pumps will greatly increase the consumption of electrical energy. In order to achieve a hydraulic balance in a different dual-channel water system, the correctness of the design calculation is of primary importance. If there is a serious error in the design calculation that causes hydraulic imbalance, it is necessary