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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"> <p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; font-weight: bold; word-break: break-all;">工业冷水机性质原理９�/span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"><br style="font-family: Verdana,Arial; word-break: break-all;"/></span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"> 工业冷水机原理是一个多功能的机器，除去了液体蒸气通过压缩或热吸收式制冷循环。蒸汽压缩工业冷水机包括四个主要组成部分的蒸汽压缩式制冷循环压缩机，蒸发器，冷凝器，部分计量装置的形式从而实现了不同的制冷剂。吸收式工业冷水机利用水作为制冷剂，并依靠之间的水和溴化锂溶液，以达到制冷效果很强的亲和力、�/span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"><br style="font-family: Verdana,Arial; word-break: break-all;"/></span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; font-weight: bold; word-break: break-all;">工业冷水机冰水循环装置系统的运作原理９�/span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"><br style="font-family: Verdana,Arial; word-break: break-all;"/></span><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"> 工业冷水机冰水循环装置系统的运作是通过三个相互联系的系统来工作的：工业冷水机制冷剂循环系统、工业冷水机水循环系统、工业冷水机电器自控系统、�/span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"><img src="//www.znpla.com/img1/img/daily/2020/08/27/152731_636375_procont.jpg" title="152731_636375_procont.jpg" alt="� .jpg"/></span></span></p><p><span style="font-family: 宋体, SimSun; font-size: 16px;"><span style="font-family: 宋体, SimSun; font-variant-numeric: normal; font-variant-east-asian: normal; word-break: break-all;"><span style="background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: 微软雅黑; font-size: 14px; font-variant-numeric: normal; font-variant-east-asian: normal; list-style: outside none none; overflow-wrap: break-word; white-space: pre-wrap;">冷却设备有敞开式和封闭式之分，因而循环冷却水系统也分为敞开式和封闭式两类。敞开式系统的设计和运行较为复杂� 冷却水系统敞开弎�冷却设备有冷却池和冷却塔两类，都主要依靠水的蒸发降低水温。再者，冷却塔常用风机促进蒸�?冷却水常被吹失。故敞开式循环冷却水系统必须补给新鲜水。由于蒸发，循环水浓缩，浓缩过程将促进盐分结�?见沉积物控制)。补充水有稀释作用，其流量常根据循环水浓度限值确定。通常补充水量超过蒸发与风吹的损失水量，因此必须排放一些循环水（称排污水）以维持水量的平衡� 循环冷却水系� 　　在敞开式系统中，因水流与大气接触，灰尘、微生物等进入循环水；此外，二氧化碳的逸散和换热设备中物料的泄漎�也改变循环水的水质。为�?循环冷却水常需处理，包括沉积物控制、腐蚀控制和微生物控制。处理方法的确定常与补给水的水量和水质相关，与生产设备的性能也有关。当采用多种药剂时，要避免药剂间可能存在的化学反应� </span></span></span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 塑料成型、注塑、挤塑、吹瓶、热力塑型、机械切削加工、非切削加工、铸造、表面处理、电镀、氧化、电泳、医疗设� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); 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