来宝网 2011/6/7点击1907次
<p> <table cellspacing="0" cellpadding="0" width="96%" align="center" border="0"> <tbody> <tr> <td height="30"> <div align="center"> <h3 class="zwc">防爆热电阻的安装部位和插入深度时要注意以下几点</h3> </div> </td> </tr> <tr> <td><hr style="margin: 0px" size="1" noshade="noshade" color="#bebebe" width="98%" /> </td> </tr> <tr> <td height="25"> <div align="center">发布时间：2011-05-30 浏览次数：<span style="color: #ff0000">6</span>次</div> </td> </tr> <tr> <td class="f-14-25"> <h3> 防爆热电阻的安装部位和插入深度时要注意以下几点</h3> <div> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span><script type="text/javascript">document.write(’<a href="http://www.huaqingyb.com/">’)</script><a href="http://www.huaqingyb.com/"><script type="text/javascript">document.write(’</a>’)</script></a><a href="http://www.jhsyyb.com/">防爆热电阻</a></span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">安装要求</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">：<a href="http://www.jhsyyb.com/">江苏顺仪仪表有限公司</a></span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">对热电阻的安装</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">应注意有利于测温准确</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">安全可考及维修方便</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">而且不影响设备运行和生产操作</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">要满足以上要求</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">在选择对热电阻的安装部位和插入深度时要注意以下几点</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">：</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">1<font face="宋体">、</font></span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">为了使热电阻的测量端与被测介质之间有充分的热交换</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">应合理选择测点位置</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">尽量避免在阀门</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">弯头及管道和设备的死角附近装设热电阻</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。<br /> <br /> </span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">2<font face="宋体">、</font></span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">带有保护套管的热电阻有传热和散热损失</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">为了减少测量误差</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">热电偶和热电阻应该有足够的插入深度</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">⑴</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">对于测量管道中心流体温度的<a href="http://www.jhsyyb.com/"><font size="2">热电阻</font></a></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">一般都应将其测量端插入到管道中心处<font face="Times New Roman">(</font><font face="宋体">垂直安装或倾斜安装</font><font face="Times New Roman">)</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">如被测流体的管道直径是<font face="Times New Roman">200</font><font face="宋体">毫米</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">那热电阻插入深度应选择<font face="Times New Roman">100</font><font face="宋体">毫米</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">；</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">⑵</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">对于高温高压和高速流体的温度测量<font face="Times New Roman">(</font><font face="宋体">如主蒸汽温度</font><font face="Times New Roman">)</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">为了减小保护套对流体的阻力和防止保护套在流体作用下发生断裂</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">可采取保护管浅插方式或采用热套式热电阻</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">浅插式的热电阻保护套管</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">其插入主蒸汽管道的深度应不小于<font face="Times New Roman">75mm;</font><font face="宋体">热套式热电阻的标准插入深度为</font><font face="Times New Roman">100mm</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">；</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"> </span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">⑶</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">假如需要测量是烟道内烟气的温度</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">尽管烟道直径为<font face="Times New Roman">4m</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><a href="http://www.jhsyyb.com/">热电阻插入深度</a><font face="Times New Roman">1 m</font><font face="宋体">即可</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">；</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">⑷</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">当测量原件插入深度超过<font face="Times New Roman">1m</font><font face="宋体">时</font></span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">应尽可能垂直安装</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span style="font-size: 10.5pt; font-family: ’Times New Roman’; mso-spacerun: ’yes’">或加装支撑架和保护套管</span><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">。<br /> <br /> <br /> </span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’"><o:p></o:p></span></p> <p class="p0" style="margin-top: 0pt; margin-bottom: 0pt"><span style="font-weight: normal; font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">更多相关关键词外链：</span><span> <script type="text/javascript">document.write(’<a href="http://www.huaqingyb.com/">’)</script><a href="http://www.jhsyyb.com/"><span class="15" style="font-weight: bold; font-size: 10.5pt; color: rgb(0,0,255); font-family: ’宋体’; text-decoration: underline; mso-spacerun: ’yes’">电容式压力变送器</span></a> <script type="text/javascript">document.write(’</a>’)</script></span><span style="font-weight: bold; font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span> <script type="text/javascript">document.write(’<a href="http://www.huaqingyb.com/">’)</script><a href="http://www.jhsyyb.com/"><span class="15" style="font-weight: bold; font-size: 10.5pt; color: rgb(0,0,255); font-family: ’宋体’; text-decoration: underline; mso-spacerun: ’yes’">智能巡检仪</span> <script type="text/javascript">document.write(’</a>’)</script></a></span><span style="font-weight: bold; font-size: 10.5pt; font-family: ’宋体’; mso-spacerun: ’yes’">，</span><span> <script type="text/javascript">document.write(’<a href="http://www.huaqingyb.com/">’)</script><a href="http://www.jhsyyb.com/"><span class="15" style="font-weight: bold; font-size: 10.5pt; color: rgb(0,0,255); font-family: ’宋体’; text-decoration: underline; mso-spacerun: ’yes’">多点热电偶</span> <script type="text/javascript">document.write(’</a>’)</script></a> <a href="http://www.jhsyyb.com/"><font size="4">防爆热电阻</font></a></span></p> <!--EndFragment--></div> </td> </tr> </tbody> </table> <br /> </p>
