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『Design a formula for calculating the flow rate per second』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Calculation formula for design second flow rate of water supply
The design second flow rate calculation formula is used for water supply system design, and its expression is called Qs=μ × n × Qd. In this formula, Qs represents the design second flow rate, measured in liters per second (L/s). The value range of the flow variation coefficient μ is usually 1.1 to 1.2, which is used to adjust the peak and fluctuation of flow to ensure that the water supply system can meet the peak water demand. The time-varying coefficient n is determined based on the user type and water usage situation, with values ranging from 2 to 5. It reflects the changes in water consumption and drought during different time periods.
2. Hydraulic design formula for UPVC pipes
1. The design flow rate of domestic sewage drainage pipes in residential buildings can be calculated using the following formula: qu=0.12 α * Np+qmax.
. Among them, qu represents the design second flow rate of sewage in the calculation pipeline section (unit: L/S), Np represents the total equivalent drainage of sanitary appliances in the calculation pipeline section, qmax represents the drainage volume of the sanitary appliance with the highest drainage flow rate in the calculation pipeline section (unit: L/S)2. The drainage flow rate, equivalent excavation and rent, and outer diameter of the drainage pipe of the sanitary appliance are the same as those of the cast iron pipe, but there are the following differences: A. When the number of sanitary appliances is greater than four squatting positions, the diameter of the cast iron drainage pipe branch is 150MM, while that of the UPVC pipe bridge is 160MM; B. The drainage diameter of the automati
3. Calculation formula for water flow rate in water supply and drainage pipes?
1. Qh=mqKh/3600T This is the formula for calculating the maximum hourly vertical silver average water supply flow rate. Among them, Qh represents the water supply flow rate, measured in liters per second (L/s); M represents the number of water units, which can be the number of people, socks, cars, or beds; Q is the fixed capacity of domestic water, expressed in liters per person per day (L/(person · d)), or may be in other units depending on the situation; Kh is the hourly coefficient of variation; T is the duration of water use, measured in hours (h)
2. For water intensive public buildings, the calculation formula for design second flow rate is: qg=∑ q0N0b. This formula is used to calculate the design second flow rate of specific public building domestic water supply pipelines. QG is the design flow rate of the water supply for the calculation pipeline section, measured in liters per second (L/s); Q0 is the rated flow rate of water supply