厂房泄爆面积计算

,厂房防爆验算,,,,,,,,,,,,,,,,,,,,,,,,,,,

,3.6厂房（仓库）的防爆,,,,,,,,,最小需要泄爆面积,,,,,实际泄爆面积,,,,,,,,,,,,,

,3.6.1有爆炸危险的甲、乙类厂房宜独立设置，并宜采用敞开或半敞开式。其承重结构宜采用钢筋混凝土或钢框架、排架结构。,,,,,,,,,分段数N计算,,,,,第1段,,,,,,,第2段,,,,,,

,3.6.2有爆炸危险的甲、乙类厂房应设置泄压设施。,,,,,,,,,厂房外形最长尺寸，m,11.64,,,,,宽,高,数量,直径,数量,面积,,宽,高,数量,直径,数量,面积

,3.6.3有爆炸危险的甲、乙类厂房，其泄压面积宜按下式计算，但当厂房的长径比大于3时，宜将该建筑划分为长径比小于等于3的多个计算段，各计算段中的公共截面不得作为泄压面积：,,,,,,,,,厂房截面高度，m,4.6,,,,洞口1,2.100,3.000,6,0.000,6,37.800,洞口1,1.500,2.100,7,0.000,0,22.050

,,,,,,,,,,厂房截面宽度，m,5.64,,,,洞口2,2.100,3.000,1,0.000,1,6.300,洞口2,2.100,2.700,1,0.000,0,5.670

,,,,,,,,,,厂房横截面周长，m,20.48,,,,洞口3,2.100,3.000,1,0.000,1,6.300,洞口3,0.000,2.100,1,0.000,0,0.000

,A=10CV2/3,,（3.6.3）,,,,,,,厂房横截面积，m2,25.944,,,,洞口4,,,,,,0.000,洞口4,,,,,,0.000

,式中：,,,,,,,,,N=,2.297132285,N值不大于3，不需分段计算泄压面积,,,洞口5,,,,,,0.000,洞口5,,,,,,0.000

,A－泄压面积，m2；,,,,,,,,,,,,,,洞口6,,,,,,0.000,洞口6,,,,,,0.000

,V－厂房的容积，m3；,,,,,,,,,泄爆面积A计算,,,,,洞口7,,,,,,0.000,洞口7,,,,,,0.000

,C－厂房容积为1000m3时的泄压比，可按表3.6.3选取，m2/m3。,,,,,,,,,分段计算,第1段,第2段,第N段,,洞口8,,,,,,0.000,洞口8,,,,,,0.000

,,,,,,,,,,厂房净高度,4.600,0.000,0.000,,洞口9,,,,,,0.000,洞口9,,,,,,0.000

,表3.6.3厂房内爆炸性危险物质的类别与泄压比值（m2/m3）,,,,,,,,,厂房净长度,11.640,0.000,0.000,,洞口10,,,,,,0.000,洞口10,,,,,,0.000

,,,,,,,,,,厂房净宽度,5.640,0.000,0.000,,洞口11,,,,,,0.000,洞口11,,,,,,0.000

,厂房内爆炸性危险物质的类别,,,,,,C值,,,C=,0.055,0.055,0.110,,洞口12,,,,,,0.000,洞口12,,,,,,0.000

,氨以及粮食、纸、皮革、铅、铬、铜等K尘＜10MPa·m·s-1的粉尘,,,,,,≥,0.030,,V=,301.988,0.000,0.000,,洞口13,,,,,,0.000,洞口13,,,,,,0.000

,木屑、炭屑、煤粉、锑、锡等10MPa·m·s-1≤K尘≤30MPa·m·s-1的粉尘,,,,,,≥,0.055,,A=,24.757,0.000,0.000,,洞口14,,,,,,0.000,洞口14,,,,,,0.000

,"丙酮、汽油、甲醇、液化石油气、甲烷、喷漆间或干燥室以及苯酚树脂、铝、镁、锆等K尘＞30MPa·m·s-1的粉尘

",,,,,,≥,0.110,,,,,,,洞口15,,,,,,0.000,洞口15,,,,,,0.000

,乙烯,,,,,,≥,0.160,,,,,,,洞口16,,,,,,0.000,洞口16,,,,,,0.000

,乙炔,,,,,,≥,0.200,,,注：,修改绿色数值,,,洞口17,,,,,,0.000,洞口17,,,,,,0.000

,氢,,,,,,≥,0.250,,,,C值查表修改,,,洞口18,,,,,,0.000,洞口18,,,,,,0.000

,注：长径比为建筑平面几何外形尺寸中的最长尺寸与其横截面周长的积和4.0倍的该建筑横截面积之比。,,,,,,,,,,,,,,,,,,,总泄爆面积Σ=,50.400,,,,,