400 square meters. According to the "District Heating Network Design Code", the flow rate of the water replenishment device of the closed heating network should be 2% of the circulation flow rate of the heating system, and the accidental water replenishment amount should be of 4% of the heating circulation rate of 10,000. The heating water loss per square meter is 2-4%, so it is normal that 10,000 square meters of heating water loses 400 cubic meters. The water in the water heater is softened water. If the water is not softened, water pipes and boilers will quickly scale, causing blockage and low thermal efficiency.
450 seconds. It takes 3/4 minutes to pump ten cubic meters of water, or 450 seconds, or 7 and a half minutes. It takes 1÷(4\3)=3\4 minutes to pump 1 cubic meter of water. For 1 cubic meter of water, the quantity of water required to pump reaches 3,000 to 3,500. All it takes is an oxygenation pumpthree in one liter works 24 hours a day. A water pump pumps 32 cubic meters of water in 24 hours. minutes. A water pump pumps 32\24=4\3 cubic meters of water per minute. It takes 1 to pump 1 cubic meter of water ÷(4\3)=3\4 minutes.