Determination of the head of the make-up water pump: The make-up water for the secondary water network is supplied by the primary water network
Thread Content
Three units need to be designed, namely for the upper area, the lower area, and the theater； The make-up water for the secondary system is supplied by the primary system: the primary system maintains a pressure of 0.5 Mpa; where the pressure is insufficient, each unit requires a make-up water pump to increase the pressure (the theater may not need such a pump – in that case, the pressure signal from the secondary system is used to control the automatic valve for making up water, with a manual bypass valve also provided) ； Do not design water replenishment systems such as soft water tanks or ion exchangers ；
Water replenishment is not done to the secondary side; rather, the water supply for the secondary network comes from the primary network
The outlet pressure of the make-up water pump is generally the pressure at the make-up water inlet plus 30~50 kPa
What determines this? Please provide an answer
CJJ 34 Code for Design of Urban Heating Pipeline Networks
This post was last edited by wcl1100 on 2016-4-15 11:06