廠房泄爆面積計算

,廠房防爆驗算,,,,,,,,,,,,,,,,,,,,,,,,,,,

,3.6廠房（倉庫）的防爆,,,,,,,,,最小需要泄爆面積,,,,,實際泄爆面積,,,,,,,,,,,,,

,3.6.1有爆炸危險的甲、乙類廠房宜獨立設(shè)置，并宜采用敞開或半敞開式。其承重結(jié)構(gòu)宜采用鋼筋混凝土或鋼框架、排架結(jié)構(gòu)。,,,,,,,,,分段數(shù)N計算,,,,,第1段,,,,,,,第2段,,,,,,

,3.6.2有爆炸危險的甲、乙類廠房應(yīng)設(shè)置泄壓設(shè)施。,,,,,,,,,廠房外形最長尺寸，m,11.64,,,,,寬,高,數(shù)量,直徑,數(shù)量,面積,,寬,高,數(shù)量,直徑,數(shù)量,面積

,3.6.3有爆炸危險的甲、乙類廠房，其泄壓面積宜按下式計算，但當(dāng)廠房的長徑比大于3時，宜將該建筑劃分為長徑比小于等于3的多個計算段，各計算段中的公共截面不得作為泄壓面積：,,,,,,,,,廠房截面高度，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

,,,,,,,,,,廠房截面寬度，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

,,,,,,,,,,廠房橫截面周長，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）,,,,,,,廠房橫截面積，m2,25.944,,,,洞口4,,,,,,0.000,洞口4,,,,,,0.000

,式中：,,,,,,,,,N=,2.297132285,N值不大于3，不需分段計算泄壓面積,,,洞口5,,,,,,0.000,洞口5,,,,,,0.000

,A－泄壓面積，m2；,,,,,,,,,,,,,,洞口6,,,,,,0.000,洞口6,,,,,,0.000

,V－廠房的容積，m3；,,,,,,,,,泄爆面積A計算,,,,,洞口7,,,,,,0.000,洞口7,,,,,,0.000

,C－廠房容積為1000m3時的泄壓比，可按表3.6.3選取，m2/m3。,,,,,,,,,分段計算,第1段,第2段,第N段,,洞口8,,,,,,0.000,洞口8,,,,,,0.000

,,,,,,,,,,廠房凈高度,4.600,0.000,0.000,,洞口9,,,,,,0.000,洞口9,,,,,,0.000

,表3.6.3廠房內(nèi)爆炸性危險物質(zhì)的類別與泄壓比值（m2/m3）,,,,,,,,,廠房凈長度,11.640,0.000,0.000,,洞口10,,,,,,0.000,洞口10,,,,,,0.000

,,,,,,,,,,廠房凈寬度,5.640,0.000,0.000,,洞口11,,,,,,0.000,洞口11,,,,,,0.000

,廠房內(nèi)爆炸性危險物質(zhì)的類別,,,,,,C值,,,C=,0.055,0.055,0.110,,洞口12,,,,,,0.000,洞口12,,,,,,0.000

,氨以及糧食、紙、皮革、鉛、鉻、銅等K塵＜10MPa·m·s-1的粉塵,,,,,,≥,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、銻、錫等10MPa·m·s-1≤K塵≤30MPa·m·s-1的粉塵,,,,,,≥,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、液化石油氣、甲烷、噴漆間或干燥室以及苯酚樹脂、鋁、鎂、鋯等K塵＞30MPa·m·s-1的粉塵

",,,,,,≥,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：,修改綠色數(shù)值,,,洞口17,,,,,,0.000,洞口17,,,,,,0.000

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

,注：長徑比為建筑平面幾何外形尺寸中的最長尺寸與其橫截面周長的積和4.0倍的該建筑橫截面積之比。,,,,,,,,,,,,,,,,,,,總泄爆面積Σ=,50.400,,,,,