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<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">13</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">.</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">每月</span><span lang="EN-US"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">日与</span><span lang="EN-US"><font face="Times New Roman">20</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">日有哪些例工作?如何做?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 48pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.57gd;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答:每月</span><span lang="EN-US"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">日</span><span lang="EN-US"><font face="Times New Roman">20</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">日第二班:</span><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">)润滑油低油压自启动校验:在油泵和电动机绝缘测量合格后,将校验的油泵低油压开关入系,由热工协助将对应的油压表进行短接,润滑油泵应自启动,对应的“油压低开油泵”声光报警讯号正常,报警指针复原后“油压低开油泵”声光报警讯号消失,将油泵停用,检查油压正常,而后用同样方法校验另一台油泵(启动直流油泵应与电气配电盘联系)</span><span lang="EN-US"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">)辅机调换运行:调换备用的凝泵、水冷泵、射水泵、疏水泵、工泵、给冷泵运行(停机及半月内启动过除外)</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">14</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">.</span><font face="Times New Roman">
</font><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">汽轮机启动时为什么要限制上下缸温差?</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -42pt; mso-char-indent-count: -4.0;"><span lang="EN-US"><span style="mso-spacerun: yes;"><font face="Times New Roman"> </font></span></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">答:上下缸温差会引起汽缸变形,一般是上缸变形大于下缸,引起热翘曲变形,使下缸径向间隙变小甚至消失,引起动静部分摩擦,尤其当转子发生热弯曲时,动静摩擦的危险更大,从而产生震动,可能引起永久变形。所以上下缸温差过大是造成大轴弯曲的初始原因,因此要限制上下缸温差。</span></p> |
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