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class="HeightTab clearfix"></div>  <div class="main">  <div class="content"> <div class="title"> <h1 style="text-align:center;">流量开关接什么?？?</h1></div> <div class="infos">来源： <a href="" target="_blank"></a> 2025-05-12 02:05:01 ?????点击： <<span class="dr_show_hits_521">0</span><script type="text/javascript"> $.ajax({ type: "GET", url:"/index.php?s=api&c=module&siteid=1&app=article&m=hits&id=521", dataType: "jsonp", success: function(data){ if (data.code) { $(".dr_show_hits_521").html(data.msg); } else { dr_tips(0, data.msg); } } }); </script> </div> <div class="maincontent clearfix"> <p>消防系统中流量开关的?？榱蛹际豕娣?br/>一、?？榱颖曜?<br/><br/>输入/输出?？椋↖/O Module）?<br/><br/>功能要求?：消防高位水箱流量开关（如电子式或机械式）通常接入输入输出?？?，用于联动消防泵并反馈运行状态。<br/>规范依据?：<br/>GB 50974-2014《消防给水及消火栓系统技术规范》?规定，消防主泵应由出水干管上的流量开关直接启动。<br/>部分设计采用输入?？椋ń鲂藕欧蠢。?，不直接联动泵组，需结合项目需求确定。<br/><br/>接线方式?<br/><br/>电子式流量开关?：需24V DC供电，输出干接点信号（?？?常闭）至控制?？?。<br/>机械式流量开关?：无源触点，直接接入输入?？榛蚣痰缙骺刂苹芈?。<br/>二、典型接线方案?<br/><br/>六线制流量开关（消防专用）?<br/><br/>电源组?：24V DC供电（2线）。<br/>联动组?：接至消防泵控制柜启动端子（2线）。<br/>反馈组?：接输入?？?，反馈运行状态（2线）。<br/><br/>触点标识?<br/><br/>COM（公共端）?<br/>NO（?？サ悖?：流量达标时闭合。<br/>NC（常闭触点）?：流量不足时闭合。</p><p><img src="http://www.jafuals.com.cn/uploadfile/ueditor/image/202505/1747030762734127.jpg" title="臬克网站模板-1" alt="臬克网站模板-1" style="width: 423px; height: 415px;" width="423" height="415"/><br/></p><p>三、工程案例?<br/><br/>案例1：某商业综合体消防泵联动改造?<br/><br/>问题?：原系统仅靠压力开关控制，存在误启动风险。<br/>解决方案?：<br/>在消防干管加装?FES电子式流量开关?，阈值设定为1.5L/s。<br/>通过输入输出?？椋ㄈ绾Ｍ錑ST-LD-8301）联动主泵，并反馈至消防主机。<br/>效果?：系统误报率降低60%，符合GB 50974要求。<br/><br/>案例2：数据中心气体灭火系统流量监测?<br/><br/>需求?：确保七氟丙烷喷放流量达标。<br/>实施?：<br/>采用?FCI流量变送器（4~20mA输出）?，接入PLC模拟量?？?。<br/>设定流量低限报警，避免灭火剂未达设计浓度。<br/>四、注意事项?<br/>信号匹配?：确认?？橹С指山拥慊蚰Ｄ饬渴淙?。<br/>防误动作?：机械式流量开关需定期校准，避免管道振动导致误触发。<br/><br/><br/></p> </div> <div class="prenext"> <ul>  <li></li> </ul> </div> </div>  </div>  <div class='hot_news'> <font>热门文章：</font> <ul> <li><a href='http://www.jafuals.com.cn/gongchenganli/519.html' target='_blank' 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