振康泵业罗茨真空�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <table cellspacing="0" cellpadding="0" width="100%"><tbody><tr class="firstRow"><td width="56%"><p> 一、概�?br/>ZJ、ZJB、ZJC、ZJBC型罗茨真空泵是一种旋转实变容积式真空泵，又称机械增压泵，是目前获得中、高真空的主要抽气设备之一，其工作原理与罗茨鼓风机相似，是利用两个�?”字型转子，在泵壳内作同步转动，从而完成吸气和排气、�br/>ZJB、ZJBC型带溢流阀罗茨真空泵与ZJ、ZJC型罗茨真空泵的不同之处是ZJB、ZJBC型泵进排气口连通，在通道上垂直地装着一个自重阀，其作用是使排气口和进气口的压力差始终保持在一个可控制的数值内，该数值是泵可靠运转时所允许�?*压力差值。因此，这种阀实际上就是一种过载自动保护阀、�br/>ZJC、ZJBC型罗茨真空泵是本公司自行开发设计的第二代罗茨真空泵。其体积小、重量轻、运行平稳、低噪音。上下垂直与侧面流道、低泄漏率。骨架油封与机械密封可以任意选用。对内密封冲注保护气体，防腐蚀。可采用风冷和水冷方式满足不同工况要求。ZJBC型带溢流阀罗茨真空泵溢流阀是内置结构，不同ZJB型，外形同ZJC没有差别、�/p></td></tr></tbody></table><table cellspacing="0" cellpadding="0" width="100%"><tbody><tr class="firstRow"><td><p><strong>二、用逓�/strong></p><p>ZJ、ZJB、ZJC、ZJBC 型罗茨真空泵被广泛应用于金属、非金属材料工业的真空脱气、真空熔炼、真空表面处理以及低密度风洞试验和电工设备、真空冷冻干燥设备的制造等场合，该泵与水环式真空泵、液环式真空泵串联配置后，更适用于化工行业的真空聚合、反应、分解和食品工业的真空蒸馏、真空干燥、真空结晶等工艺流程、�/p></td></tr><tr><td><p>三、特炸�/p><p>1 ．能在很宽的压强范围� 1~1.3 × 10 2 Pa � 有较大的抽� .</p><p>2 ．泵腔无� , 避免了油蒸汽污染真空系统 .</p><p>3 ．振动小，噪声低、�/p><p>4 ．机械摩擦损失小，故驱动功率小、�/p><p>5 ．易于维护和维修，费用低，寿命长、�/p><p>6 ．适合于真空系统的突然放气、�/p><p>7 ．可抽除可凝性气体、�/p>8 ．不可单独使用，必须配置前级泵。不允许在大气压力下启动，待前级泵将罗茨泵入口压力抽到允许起动压力时，方可启动。前级泵一般为油封式机械泵，液环式真空泵，如水环泵和油环泵等、�p>9 ．采用独特加工工艺，零部件互换性好、�/p></td></tr></tbody></table><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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