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[单选题]
分馏塔顶操作压力为0.08MPa(G),塔板总压降为0.03Mpa,操作温度下塔釜介质密度为640kg/m3.塔釜高(从塔底切线至第一层塔盘)为6m,正常操作时塔釜液位最低为15%,塔底离心泵泵中心线至地面高度为0.5m。如下图所示(图中长度为单位为mm)。假设泵吸入侧的总压力损失为0.015Mpa,必需汽蚀余量为3m,安全裕量取0.5m。则塔裙座(H)的高度(m)最小应不小于下列哪一项的数值?()
分馏塔顶操作压力为0.08MPa(G),塔板总压降为0.03Mpa,操作温度下塔釜介质密度为640kg/m3.塔釜高(从塔底切线至第一层塔盘)为6m,正常操作时塔釜液位最低为15%,塔底离心泵泵中心线至地面高度为0.5m。如下图所示(图中长度为单位为mm)。假设泵吸入侧的总压力损失为0.015Mpa,必需汽蚀余量为3m,安全裕量取0.5m。则塔裙座(H)的高度(m)最小应不小于下列哪一项的数值?()![分馏塔顶操作压力为0.08MPa(G),塔板总压降为0.03Mpa,操作温度下塔釜介质密度为640k](https://wkrtcs.bdimg.com/rtcs/image?w=317&md5sum=1dff12e50acaec1bb292674175f54b05&sign=76d6e5f4be&rtcs_flag=2&rtcs_ver=4&l=webapp&bucketNum=863&ipr=%7B%22anchor%22%3A%7B%22pos_h_by%22%3A%22text%22%2C%22pos_v_by%22%3A%22text%22%7D%2C%22c%22%3A%22word%2Fmedia%2Fimage8.jpeg%22%2C%22dataType%22%3A%22jpeg%22%2C%22h%22%3A278%2C%22imgOriH%22%3A280%2C%22imgOriW%22%3A318%2C%22t%22%3A%22img%22%2C%22w%22%3A317%7D)
A.4.6
B.5.5
C.3.4
D.3.8
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