[讨论]换热器结垢惨状

<p><font size="3">壳程介质：减压渣油，温度：～360℃。<font face="Times New Roman">管程为拔头原油，温度：～200℃。</font></font></p><p><font size="3"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">型号：</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">FB700-135-40-2II</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">（</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">B=200</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">），管束材质：</span><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="316" unitname="l"></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">316L。</span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv></font></p><p><font size="3"><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="316" unitname="l"></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"></span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv></font><font size="3"><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="316" unitname="l"></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">图片所示</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">换热器<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">运行至第</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">19</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">个月，</span>外壳与管束之间被严重堵塞。<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;"><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">另外一台换热器运行</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">15</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">个月，</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">出现内漏，清洗堵漏后运行<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 14.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体;">9</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">个月，再次出现内漏，而且结垢严重。</span></span></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">最终两台管束</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">被迫更新</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 14.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">。</span></span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv><chmetcnv></chmetcnv></font></p><p>&nbsp;欢迎大家献上防止结垢秘笈。</p><p><br/><br/><br/></p>

[此贴子已经被cpterry于2006-10-19 14:13:29编辑过]

<p>看样子不像是结垢啊。是物料聚合或本身自带的脏东西把壳层堵塞了</p>

现在原油含硫，对设备有腐蚀。

也有焦炭产生,生焦反应也会在这里发生.

<p>加阻垢剂啊，</p><p></p>

换热器前加过滤器啊！

<p>常见</p>

<p>污物聚集！</p>

应针对污物进行取样分析，判断成分是什么，估计多半是腐蚀物，考虑材质升级和防腐处理；

很常见啊，我厂催化的油浆换热器每年拆下来都这样，没办法。只有大检修时候清理。

有腐蚀,应该采取防腐处理

<p>可否减少设备使用时间，一开一备，同时增加蒸汽吹扫进出管路？</p>

<p>可以加常减压阻垢剂，该产品具有阻聚、分散、抗氧、缓蚀等功能。很多厂家在用，技术很成熟。</p>

这种情况下能往物料中加缓蚀阻垢剂吗??从图片来看,这种不是传统意义中的垢层,我认为加蒸汽管路吹扫是正道....

S腐蚀的结果,现在国内拼命加工高硫高酸原油,设备腐蚀严重啊,为了眼前利益是在是得不偿失啊~~!!