HDYQ变压器绝缘油色谱分析仪的故障排除维护与保养

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src="https://img67.hbzhan.com/9/20230321/638149949810875202792.jpg" title="09色谱.jpg" alt="09色谱.jpg" style="max-width: 800px; max-height: 300%;" /></p><p style="white-space: normal;">1.HDYQ变压器绝缘油色谱分析仪进样器的清洗</p><p style="white-space: normal;">油色谱分析仪进样器比较容易污染，特别是内衬管容易污染，为此清洗进样器就显得比较重要，油色谱分析仪进样器内衬管可用溶剂棉球直接穿洗，穿洗后用大气流吹一下（主要吹掉棉球纤维并吹干溶剂），然后装好内衬管“O”型圈和密封压帽；污染严重时需用相应溶剂（甚至洗液）浸泡过夜后，再用超声波清洗，最后用溶剂漂洗、烘干，存放在干燥器中备用。</p><p style="white-space: normal;">2.油色谱分析仪氢火焰离子化检测器的清洗</p><p style="white-space: normal;">HDYQ变压器绝缘油色谱分析仪</p><p style="white-space: normal;">可拆下FID外罩，取下电极和绝缘瓷垫，把外罩、电极和绝缘瓷垫用丙酮或酒精清洗然后烘干。如果污染严重，可以将待清洗零件放入超声波清洗液中，经超声后，用清水淋洗干净然后用酒精清洗并烘干。装配时注意极化线圈应居于喷口四周，不能与壳相碰。高度不能超过喷嘴口，如超过喷嘴口，点火后极化线圈会发红而影响检测器的稳定性和灵敏度，如果是色谱柱固定液污染检测器，则选择能溶解固定液的溶剂予以溶解。</p><p style="white-space: normal;">3.油色谱分析仪色谱柱的安装</p><p style="white-space: normal;">填充柱的安装</p><p style="white-space: normal;">填充柱在进样器和检测器两端的安装是类似的。若是柱头进样方式，填充柱的进样器一端应留出足够的一段空柱(至少50mm)，以防插入的注射器针头触到填在柱端的玻璃纤维或柱填充物；在检测器一端，也应留出足够的一段空柱(至少4mm)，以防喷嘴底端触到填在柱端的玻璃纤维或柱填充物。如下图所示：</p><p style="white-space: normal;">柱头进样填充柱两端留空管部分示意图</p><p style="white-space: normal;">色谱分析仪Φ3mm（或Φ4mm）填充色谱柱与进样器、检测器的连接。</p><p style="white-space: normal;">安装步骤如下：</p><p style="white-space: normal;">（1）将M10×1 Φ3.2mm（或Φ4.2mm）柱螺母先套入色谱柱的两端。</p><p style="white-space: normal;">（2）在色谱柱的两端装上Φ3mm（或Φ4mm）石墨圈，向上推入进样器和检测器底部（要推到底），旋紧螺帽。</p><p style="white-space: normal;">（3）用中性皂液检漏，不应有漏气现象。</p><p style="white-space: normal;">（4）擦干皂液。</p><p style="white-space: normal;">注：填充柱的进样器端不能和检测器端搞混，应当在装填色谱柱时做标记，一般带有铝制标签端为接进样口端。</p><p style="white-space: normal;">毛细管柱的安装</p><p style="white-space: normal;">成品熔融石英毛细管柱很规整，柱端穿过密封石墨垫后应重新切口，切口应无毛刺，边缘齐整。用沾有丙酮的滤纸擦净待接入油色谱分析仪部分，以免引入杂峰而干扰分析。使用过一段时间的毛细管柱，若重新老化后仍有杂峰干扰，需将进样口端切除30cm左右后再使用。</p><p style="white-space: normal;">通常先装上柱螺母和密封石墨垫后再进行切割。用一适宜的玻璃切割工具（如壁纸刀片等），在欲切断的部位快速划过，轻轻敲去柱末端即可。</p><p style="white-space: normal;">注意：最好戴上防护眼镜，以防在处理、切割熔融石英毛细管柱时产生的飞扬颗粒物质对眼睛的可能伤害。处理毛细管柱时也应小心防止皮肤被扎伤。由于柱子具有一定的韧性，因此在处理毛细管柱时，事先注意这些十分重要。</p><p style="white-space: normal;"><img max-width="600" src="https://img67.hbzhan.com/9/20230321/638149949811656457240.png" style="border: 0px; margin: 10px auto 0px; padding: 0px; display: block; max-width: 100%; height: auto;" alt="" /></p><p style="white-space: normal;">准备熔融石英毛细管柱</p><p style="white-space: normal;">毛细管柱绕在金属框上，此框悬挂在柱箱内的毛细管柱支架上。柱两端由框底部伸出，平顺弯曲朝向进样器接口和检测器接口，不要让柱子的任何部位碰到柱箱内壁。石墨垫圈穿过柱时可能会污染柱，可按“准备熔融石英毛细管柱”中的说明切割柱端。下图为安装弹性石英毛细管柱时，进样口端和FID端需预留的长度。</p><p style="white-space: normal;"><img max-width="600" src="https://img67.hbzhan.com/9/20230321/638149949812437658991.png" style="border: 0px; margin: 10px auto 0px; padding: 0px; display: block; max-width: 100%; height: auto;" alt="" /></p><p style="white-space: normal;">4.油色谱分析仪气体过滤器的维护</p><p style="white-space: normal;">载气流路控制系统中，如填充柱进样口的吹扫流路，毛细管进样口的分流及吹扫流路，均接有过滤器，其中装填有吸附剂。需要定期更换或活化。活化时需将过滤器按载气流向倒接入进样口，通入高纯氮气20ml/min，活化温度为260℃，时间10小时。</p><p style="white-space: normal;">开机无反应</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法和修理市电问题检查市电保险丝熔断检查保险丝，并更换显示屏不点亮检查显示屏引线</p><p style="white-space: normal;">色谱峰问题</p><p style="white-space: normal;">无基线</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法和修理检测板没有安装检查检测器板是否安装检测板故障更换检测板色谱仪与工作站没有连接检查工作站及信号线连接</p><p style="white-space: normal;">没有色谱峰</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法和修理进样器温度太低增加进样器温度注射器堵塞更换注射器放大器电源断开检查放大器没有载气通过检查载气流路是否堵塞、气瓶中气体是否用完进样垫漏更换进样垫火焰熄灭点火FID极化电压接触不良排除极化电压连接不良现象</p><p style="white-space: normal;">正常保留时间而灵敏度下降</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法及修理注射器漏气更换注射器灵敏度的选择不当选择适当的灵敏度载气柱后有泄漏点检漏并做相应的处理氢气和空气流量选择不当（FID）调正它们的流量检测器无高压（FID）检查是否有极化电压</p><p style="white-space: normal;">拖尾峰</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法及修理进样器内衬管污染清洗或更换进样器内衬管柱箱温度太低增加柱箱温度进样口温度太低调高进样口温度色谱柱选择不当选择适当极性的色谱柱</p><p style="white-space: normal;">前伸峰</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法及修理样品量太大减小进样量、稀释样品或加大分流流量样品凝集在系统中先提高柱温，再选择适当的进样口、色谱柱、检测器温度</p><p style="white-space: normal;">色谱峰分离不好</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法及修理柱过短、内径过粗选择更长、内径更细的色谱柱固定液流失老化或更换色谱柱柱箱温度太高降低柱温温度固定液选择不正确选择适当极性的色谱柱载气流速太高或太低调整载气流量，使其在佳线速度范围内</p><p style="white-space: normal;">油色谱分析仪故障判断油色谱分析仪检查方法及处理放大器输入饱和降低样品量，降低放大器灵敏度工作站零点位置发生变化检查工作站零点并做相应的处理（校正零点）。</p><p> </p> </div> <div class="news-keyword" style="margin-bottom:20px; font-size:16px; font-family:microsoft yahei;" >关键词：<a href="https://www.hbzhan.com/chanpin-21561.html" target="_blank" style="color: #891e2a;text-decoration: underline;margin-right: 10px;">变压器 </a><a href="https://www.hbzhan.com/chanpin-10273.html" target="_blank" style="color: #891e2a;text-decoration: underline;margin-right: 10px;">色谱分析仪 </a><a 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