氧气管道和阀门燃烧爆炸危险性分析及预防措施之二

luouo

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char;"><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">二、防范措施</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1.</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">设计应符合有关法规、标准规定</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　设计应符合</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1981</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">年冶金部颁发的《钢铁企业氧气管网的若干规定》，以及《氧气及相关气体安全技术规程》（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">GB16912-1997</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）、《氧气站设计规范》（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">GB50030-91</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）等法规标准的要求。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）</span><span style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">
                        </font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">碳素钢管中氧气的最大流速应符合表</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br style="mso-special-character: line-break;"/><br style="mso-special-character: line-break;"/><p></p></span></p><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; TEXT-ALIGN: center;"><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">表</span></b><b><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4 </font></span></b><b><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">碳素钢管中氧气的最大流程</span></b><b><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><p></p></span></b></p><div align="center"><table class="MsoNormalTable" cellspacing="0" cellpadding="0" border="1" style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-top-alt: windowtext; mso-border-left-alt: white; mso-border-bottom-alt: windowtext; mso-border-right-alt: white; mso-border-style-alt: solid; mso-border-width-alt: .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt;"><tbody><tr style="mso-yfti-irow: 0;"><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">工作压力（</span><span lang="EN-US"><font face="Times New Roman">MPa</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）</span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span style="FONT-FAMILY: 宋体;">≤</span><span lang="EN-US"><font face="Times New Roman">0.1</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">0.1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">～</span><span lang="EN-US"><font face="Times New Roman">0.6</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">0.6</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">～</span><span lang="EN-US"><font face="Times New Roman">1.6</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">1.6</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">～</span><span lang="EN-US"><font face="Times New Roman">3.0</font></span></p></td></tr><tr style="mso-yfti-irow: 1; mso-yfti-lastrow: yes;"><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">流速（</span><span lang="EN-US"><font face="Times New Roman">m/s</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）</span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">20</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">13</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">10</font></span></p></td><td width="114" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #ece9d8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 85.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" align="center" style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center;"><span lang="EN-US"><font face="Times New Roman">8</font></span></p></td></tr></tbody></table></div><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char;"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman"><p></p></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char;"><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）为防止着火，在氧气阀门后，均应连接一段其长度不少于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">倍管径，且不少于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1.5m</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的铜基合金或不锈钢的管道。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）氧气管道应尽量少设弯头和分岔头，工作压力高于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">0.1MPa</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的氧气管道弯头，应采取冲压成阀型法兰制作。分岔头的气流方向，应与主管气流方向成</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">45°</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">到</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">60°</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">角。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）在对焊凹凸法兰中，采用紫铜焊丝作</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">O</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">型密封圈，是氧气用法兰抗燃性可靠的密封形式。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）氧气管道应有导电的良好装置，接地电阻应小于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">10Ω</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">，法兰间电阻应小于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">0.03Ω</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">6</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）车间内主要氧气管道的末端应加设放散管，以利氧气管道的吹扫和置换，在较长的氧气管道进入车间调节阀前，应设过滤器。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2.</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">安装注意事项</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）凡与氧接触的部位要严格脱脂，脱脂后用不含油的干空气或氮气吹净。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）焊接应采用氩弧焊或电弧焊。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3.</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">操作注意事项</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）开关氧气阀门时应缓慢进行，操作人员应站在阀门的侧面，开启要一次到位。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）严禁用氧气吹刷管道或用氧气试漏、试压。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）实行操作票制度，事先对操作目的、方法、条件作出较详细的说明和规定。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）直径大于</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">70mm</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">的手动氧气阀门，当阀前后压差缩小到</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">0.3MPa</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">以内时才允许操作。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4.</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">维护保养注意事项</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）氧气管道要经常检查维护，除锈刷漆，每</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">～</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">年一次。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）管路上的安全阀、压力表，要定期校验，</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">年</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">次。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）完善接地装置。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）动火作业前，应进行置换，吹扫，吹出气体中氧含量在</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">18</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">％～</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">23</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">％时为合格。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）阀门、法兰、垫片及管材、管件选用应符合《氧气及相关气体安全技术规程》（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">GB16912-1997</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）的有关规定。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">6</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）建立技术档案，培训操作，检修，维护人员。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">5.</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">其他安全措施</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）提高施工、检修及操作人员对安全的重视程度。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）提高管理人员的警惕性。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）提高科学技术水平。</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><br/><br/></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">　　（</span><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;"><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-bidi-font-size: 10.5pt; mso-ascii-font-family: "Times New Roman"; mso-hansi-font-family: "Times New Roman";">）不断完善送氧方案。</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><p><font face="Times New Roman"></font></p></span></p>

drawng

我正在找这方面的资料，因为氧气管道的脱脂是非常关键的，有人提出，等氧气管道施工完后，才进行系统脱脂，我认为不妥，应逐件进行脱脂，然后进行充氮封闭。