爆破片的工藝計算

1、爆破片的工藝計算泄放量計算1.1無保溫層2.55x105FxA0.82W=Hl式中：W泄放量，kg/h：H泄放條件下的汽化熱，kJ/kg：A潤濕面積，m2；F容器外壁校正系數(shù)，根據(jù)勞動部頒發(fā)的壓力容器安全安全技術(shù)監(jiān)察規(guī)程：a.容器在地面上無保溫：F二1.0；b容器在地面下用砂土覆蓋：F二0.3；c.容器頂部設(shè)有大于10l/(m2min)水噴淋裝置：F=0.6。1.2有保溫層2.61x(650-1)x九xA0.82Hxdl0式中：t泄放溫度，C：入一保溫材料的導(dǎo)熱系數(shù);d0保溫材料的厚度，m。泄放面積的計算2.1氣體的最小泄放面積、WZTanx55.8xCxCxPM0C=式中：a最小泄放面積，m

2、m2；W額定泄放量，kg/h；c0額定泄放系數(shù)；C氣體特性系數(shù)。P0背壓，MPa：k絕熱指數(shù)；p爆破片的設(shè)計爆破壓力，MPa；Z氣體壓縮因子;T容器或設(shè)備內(nèi)泄放氣體的絕對溫度，K；M氣體的分子量。2.2水蒸汽的最小泄放面積、Wa5.2xCxCxP0s式中：Cs水蒸汽的物性系數(shù)（蒸汽壓力小于16MPa（表）的飽和蒸汽，Csl：過熱蒸汽的Cs查附表1。）2.3液體的最小泄放面積a5.2x_WCxgx：而0式中：g液體動力粘度的校正系數(shù)：P液體密度，kg/m3。對于化學超壓過程，由于其機理復(fù)雜和工況繁多，需經(jīng)試驗才能確定所需的爆破片。附表1:水蒸汽特性系數(shù)絕對低力溫度忙:2001|2202&0130

3、u1屮380420460j500i|560600|660700MFJ系過Cs0.5|10051JL0.9960.931o.m0.8W1.0135i1i11Q.97SO.98ED.98J0.93BQ9010S6S0.838ii!.50.770.9760.9700.9470.906O.B?2084】20.9720.9670.9550.5120.S760.8450.&17D.7920.76S山疽09G09180.8&00.B4BO.B390793C770309670.9570.9240.8S50.S5I0.8220.7950.77407420.7210.69JQ.67940.9650.95SQ.9J

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