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1. How to calculate the flow rate of gas pipeline network
For low-pressure gas, such as a pressure of 2000Pa, we can use a specific formula to calculate the flow rate Q. The formula is as follows: Rm=P/L=6.26 * 10 ^ 7 * λ * (Q ^ 2/d ^ 5) ρ * (T/To), where Rm represents the frictional loss per unit length of gas pipeline; P refers to the pressure difference at both ends of the pipeline; L is the length of the pipeline; λ is the resistance coefficient along the pipeline; Q is the calculated flow rate of the gas pipeline; D is the inner diameter of the gas pipeline; ρ is the density of gas, measured in kg/m ^ 3; T is the temperature of the gas; To is the reference temperature, with a value of 273.16K. The determination of the resistance coefficient λ along the pipeline is based on the Reynolds number Re. If the flow in the pipeline is laminar, i.e. the Reynolds number Re is less than or equal to 2100, then the value of λ is 64 divided by Re. When the flow is in a critical state, i.e. the Reynolds number Re is between 2100 and 3500, the value of λ can be calculated by adding (Re-2100) to formula 0.03 and dividing by (65 * Re-10 ^ 5). If the flow is turbulent and Re is greater than 3500, for steel pipes, the value of λ can be determined by adding (K/d-68/Re) to the power of 0.25 using formula 0.11, where K is the roughness coefficient. It should be noted that due to the lack of specific data in the question, we are unable to perform specific calculations. In practical operation, relevant parameters need to be provided according to the actual situation in order to accurately calculate the flow rate of the gas pipeline. It is very important to accurately understand and grasp the friction loss and resistance coefficie
2. Formula for gas flow rate on the coke side
Formula for gas collision flow rate on the coke side: Gas production (Nm3/h)=hourly coal loading (t/h) x (320-340) Nm3/t. The characteristics of air flow measurement are low fluid static pressure, low flow velocity, small allowable pressure loss, and generally not allowing the use of reducing pipe diameter to increase flow velocity. Guessing the high humidity of the fluid, some measuring objects still carry a small amount of water, and flow in layers at the bottom of the pipeline. The gas produced by gas generators, coke ovens, etc. generally contains viscous substances such as tar, and some also carry a certain amount of dust. The difference between the high and low calorific values of gas is usually about 10%. When gas is burned, it is necessary to produce water vapor, which needs to be cooled to the temperature of the gas before combustion. This not only releases the heat between the temperature differences, but also releases the condensation heat of the water vapor. Therefore,