英威腾在矿用乳化液泵的应用方案

<p style="margin-left:24px;text-indent:28px"><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">在矿井采煤面采掘时，需要可靠的支撑和控制工作面的顶板，隔离采空区，防止矸石进入回采工作面。乳化液泵与液压支架在这种需求下应运而生，乳化液泵提供液压支架所需的动力，保证乳化液的压力恒定。现有部分矿井的乳化液泵还直接使用工频启动和运行，工频启动不仅设备容易损坏，而且能耗极高。随着煤矿自动化技术的发展，变频器的应用能有效解决这些问题。英威腾Goodrive3000（简称GD3000）系列变频器采用了三电平变频技术，不仅可以实现乳化液泵电机的软启软停，并且系统配置了工频电路，保证系统稳定运行。</span></p><p style="margin-left:24px;text-indent:28px"><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">客户痛点：</span></p><p style="margin-left:24px;text-indent:28px"><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">1</span><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">、传统工频运行，启动电流大，机械冲击大，影响设备的安全运行；</span></p><p style="margin-left:24px;text-indent:28px"><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">2</span><span style="font-size:14px;font-family:&#39;微软雅黑&#39;,sans-serif;color:windowtext">、始终全速运行，耗电量大，造成电力资源浪费；</span></p><p class="MsoListParagraph" style="margin-left:24px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif"><span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-weight: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;"><br/></span></span></strong></p><p class="MsoListParagraph" style="margin-left:24px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif"><span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-weight: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp;</span></span></strong><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">英威腾解决方案</span></strong></p><p class="MsoListParagraph" style="margin-left:48px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">（1）<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-weight: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp;&nbsp;&nbsp; </span></span></strong><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">系统结构图</span></strong></p><p class="MsoListParagraph" style="margin-left:48px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif"><img src="/upload/article/20220402/1648891431770192.png" title="1648891431770192.png" alt="1.png"/></span></strong></p><p><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></strong></p><p class="MsoListParagraph" style="margin-left:48px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">（2）<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-weight: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp;&nbsp;&nbsp; </span></span></strong><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">方案整体描述</span></strong></p><p class="MsoListParagraph" style="margin-left:48px;text-indent:0"><img src="/upload/article/20220402/1648891448325041.png" title="1648891448325041.png" alt="2.png"/></p><p class="MsoListParagraph" style="margin-left:48px"><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">一般情况下一个采煤工作面配备两套乳化液泵站，一备一用，两套极少同时运行，一套泵站三相异步电机拖动，且处于长期连续运行状态，向支撑作业面的液压支架提供足够的液压。根据客户现场需求情况，英威腾采用GD3000一拖二带工频互为备用方案。需要变频器运行1号泵时合KM1,KM3,KM5,运行变频器，需要运行2号泵时合KM1,KM3,KM4,运行变频器，KM4/KM5互锁。需要工频运行1号泵时合KM2, KM5,运行变频器，需要工频运行2号泵时合KM2, KM4,运行变频器.工变频不能同时使用。</span></p><p class="MsoListParagraph" style="margin-left:48px"><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">采用本方案的由于1、2号泵互为备用，工变频互为备用，有效解决因设备问题造成停产减产问题。</span></p><p class="MsoListParagraph" style="margin-left:48px"><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">（3）<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-weight: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp;&nbsp;&nbsp; </span></span></strong><strong><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">技术特征</span></strong></p><p class="MsoListParagraph" style="margin-left:56px"><span style=";font-family:Wingdings">l<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp; </span></span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">PID</span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">调节，实现了恒压自动控制，节能效果显著；</span></p><p class="MsoListParagraph" style="margin-left:56px"><span style=";font-family:Wingdings">l<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp; </span></span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">减少溢流阀的使用，降低机械耗损 ；</span></p><p class="MsoListParagraph" style="margin-left:56px"><span style=";font-family:Wingdings">l<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp; </span></span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">良好的过载能力及环境适应能力，运行可靠性高；</span></p><p class="MsoListParagraph" style="margin-left:56px"><span style=";font-family:Wingdings">l<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp; </span></span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">可实现两台泵站的切换，并且配置工频旁路；</span></p><p class="MsoListParagraph" style="margin-left:56px"><span style=";font-family:Wingdings">l<span style="font-variant-numeric: normal;font-variant-east-asian: normal;font-stretch: normal;font-size: 9px;line-height: normal;font-family: &#39;Times New Roman&#39;">&nbsp; </span></span><span style=";font-family:&#39;微软雅黑&#39;,sans-serif">启动电流小，解决对泵站的冲击问题；</span></p><p class="MsoListParagraph" style="margin-left:56px"><span style="font-family: 微软雅黑, sans-serif; font-size: 14px;"><span style="font-family: Wingdings;">l</span><span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: &quot;Times New Roman&quot;;">&nbsp;&nbsp;</span>具备过压，过流，缺相，过载，过温等问题具有保护功能；</span><br/></p><p><br/></p>