Reference standard: HG/T 20570.12-95 Flare System Setup P17 (411) according to the formula LP=L30-20lg（γI/30), where di is the inner diameter of the heat exchanger, m;No Number of heat exchange tubes per pass;F is the sectional area of pipe passage, m2
Reference standard: HG/T 20570.12-95 Flare System Setting P17 (411) is calculated according to the formula L30=L+10lg (WC2/2).Where, L30 is the noise intensity 30 m away from the emission point, dB;L is the noise intensity, dB, which can be seen from Figure 1;W is the discharge flare gas flow, kg/s;C is the sound velocity, m/s (see
Reference standard: HG/T 20570.12-95 Flare System Setting P15 (409) According to the formula H=0.5 - YC, H is the height of flare stack, m;D is the distance from the flame center to the ground boundary, m;For the calculation of D, see the online calculation program of distance D from the torch flame center to the ground boundary, R is the radius of the barrier free area, m
Reference standard: HG/T 20570.12-95 Flare System Setup P13 (407) is calculated according to the formula, where dj is the diameter of the flame stack, m;Uj is the outlet velocity of flame gas, m/s;Ux is the design wind speed, m/s;Tx is the air temperature, K;Tj is flame gas temperature, K;Mj is the average molecular weight of flame gas
Reference standard: HG/T 20570.12-95 Flare System Settings P12 (406) is calculated according to the formula, where is the lower explosion limit parameter of flame gas, without unit;Cl is the lower explosion limit of flare gas in air, without unit;Uj is the outlet velocity of flare gas, m/s;Ux is the design wind speed, m/s;Mj is the average molecule of flare gas
Reference standard: HG/T 20570.12-95 Flare System Setting P12 (406) is calculated according to the formula.Wherein, Mj is the average molecular weight of flare gas, without unit;Tj is flare gas temperature, K;Kj is the insulation index of flare gas, without unit;C is sound velocity, m/s;
Reference standard: HG/T 20570.12-95 Flare System Setting P12 (406) According to the formula H=0.5 - △ Y/2, where H is the height of flare stack, m;D is the distance from the flame center to the ground boundary, m;For the calculation of D, see the online calculation program of distance D from the torch flame center to the ground boundary, R is the radius of the barrier free area
Calculate according to the formula, where Uj is the velocity of flare gas at the outlet of flare stack, m/s;V is the flare gas volume flow, m3/s;Dj is the inner diameter of flare stack top, m;
Reference standard: HG/T 20570.12-95 Flare System Setting P10 (404) is calculated according to the formula.Wherein, Mj is the average molecular weight of flare gas, without unit;Tj is flare gas temperature, K;Wj is the discharge flow of flare gas, kg/s;V is the volume flow of flare stack, m3/s;
Applicable to simple calculation and Brutowski/Sommer approximate calculation method, where D is the distance from the flame center to the ground boundary, m;τIs the heat radiation intensity transfer factor, without unit;F is the thermal radiation factor, without unit;Q is the heat release of flare gas, kW;K is the maximum allowable thermal radiation intensity, kW/m2;
Reference standard: HG/T 20570.12-95 Flare System Setting P12 (406) is calculated according to the formula, where Wj is the flare gas discharge flow, kg/s;Pj is the pressure of flare gas inside the top of flare, kPa;Mach is Mach number, which is the ratio of flare gas flow rate and sound velocity of the fluid, dimensionless;Mj is the
