美国进口HTLJ系列涡街流量计

<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;"><*n><*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">概述<*n>
<*n style="font-family:宋体;font-size:10.5pt;"> <*n>涡街流量计是一种用途****广泛的流量仪表，几乎可以用在所有气体，液体和蒸汽的流量计测量和控制，罗斯蒙特公司研制开发具有国际****水平的新一代<*n>HTLJ<*n>系列数字智能涡街流量计，它突破了传统模拟方式处理涡街信号的局限，通过现代数字信号处理的方法对涡街探头信号进行识别、筛选，从而得到正常的流量信号，****大的****涡街的*震性能，从根本上解决了围绕涡街几十年来不*震问题，它广泛应用于石油化工、轻工、热电、造纸等行业的给水、给盐、给风的流量。<*n>
<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【进口<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">HTLJ<*n>系列涡街流量计<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-family:宋体;font-size:10.5pt;">功能特点<*n>
<*n style="font-family:宋体;font-size:10.5pt;">1<*n style="font-family:宋体;font-size:10.5pt;"> <*n>对探头信号能够进行智能识别和筛选，*震性能高。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">2<*n style="font-family:宋体;font-size:10.5pt;">可使用多点线性能修正、测量范围更宽，精度更高。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">3<*n style="font-family:宋体;font-size:10.5pt;"> <*n>无需信号切除，准确可靠的测量信息。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">4<*n style="font-family:宋体;font-size:10.5pt;"> <*n>调试操作简便，接线简单，两线制、三线制一体。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">5<*n style="font-family:宋体;font-size:10.5pt;"> <*n>检测元件不接触流体，可靠性能高，适应介质性强。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">6<*n style="font-family:宋体;font-size:10.5pt;"> <*n>无可动部件，*损，结构简单，牢固。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">7<*n style="font-family:宋体;font-size:10.5pt;"> <*n>可根据用户的<*n style="font-family:'Times New Roman';font-size:10.5pt;">2<*n style="font-family:宋体;font-size:10.5pt;">次要求进行温度双补偿或温度单补偿，实现远传补偿或就地显示管理。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">8<*n style="font-family:宋体;font-size:10.5pt;"> <*n>信号输出：脉冲输出，电流输出。<*n> <*n style="font-family:'Times New Roman';font-size:10.5pt;">
<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【进口<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">HTLJ<*n>系列涡街流量计<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-family:宋体;font-size:10.5pt;">工作原理<*n>
<*n style="font-family:宋体;font-size:10.5pt;">当介质以一定速度流过三角柱体时，在三角柱体两侧后面产生一个交替排列的旋涡带，称之为“卡门旋涡”，由于旋涡发生体两侧交替产生旋涡，于是在发生体两侧产生压力脉动，从而使检测体产生交变应力，封装在检测探头体内的压电元件在交变应力的作用下，产生与旋涡同频率的交变电荷信号，放大器将这种电荷信号进行放大、滤波、*，****后输出与介质流速成正比的脉冲信号，送至积算仪进行处理和显示。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">在一定雷诺数范围内<*n style="font-family:'Times New Roman';font-size:10.5pt;">(2<*n style="font-family:宋体;font-size:10.5pt;">×<*n style="font-family:'Times New Roman';font-size:10.5pt;">104 <*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">7<*n style="font-family:宋体;font-size:10.5pt;">×<*n style="font-family:'Times New Roman';font-size:10.5pt;">106)<*n style="font-family:宋体;font-size:10.5pt;">旋涡的释放频率<*n style="font-family:'Times New Roman';font-size:10.5pt;">f<*n style="font-family:宋体;font-size:10.5pt;">与流体流速<*n style="font-family:'Times New Roman';font-size:10.5pt;">v<*n style="font-family:宋体;font-size:10.5pt;">及旋涡发生体的迎流面宽度<*n style="font-family:'Times New Roman';font-size:10.5pt;">d<*n style="font-family:宋体;font-size:10.5pt;">之间关系，可用下式表示<*n style="font-family:'Times New Roman';font-size:10.5pt;">:f=Sr<*n style="font-family:宋体;font-size:10.5pt;">·<*n style="font-family:'Times New Roman';font-size:10.5pt;">V/ d<*n style="font-family:宋体;font-size:10.5pt;">，式中<*n style="font-family:'Times New Roman';font-size:10.5pt;">f-<*n style="font-family:宋体;font-size:10.5pt;">卡门旋涡的释放频率<*n style="font-family:'Times New Roman';font-size:10.5pt;">;Sr-<*n style="font-family:宋体;font-size:10.5pt;">系数<*n style="font-family:'Times New Roman';font-size:10.5pt;">(<*n style="font-family:宋体;font-size:10.5pt;">称为斯特劳哈尔数<*n style="font-family:'Times New Roman';font-size:10.5pt;">)<*n style="font-family:宋体;font-size:10.5pt;">，<*n style="font-family:'Times New Roman';font-size:10.5pt;">V-<*n style="font-family:宋体;font-size:10.5pt;">流速，<*n style="font-family:'Times New Roman';font-size:10.5pt;">d-<*n style="font-family:宋体;font-size:10.5pt;">三角柱体的宽度。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">斯特劳哈尔数是旋涡流量计的重要系数。在曲线的<*n style="font-family:'Times New Roman';font-size:10.5pt;">Sr<*n style="font-family:宋体;font-size:10.5pt;">≈<*n style="font-family:'Times New Roman';font-size:10.5pt;">0.16<*n style="font-family:宋体;font-size:10.5pt;">的平直部分，所以只要准确测出频率<*n style="font-family:'Times New Roman';font-size:10.5pt;">f,<*n style="font-family:宋体;font-size:10.5pt;">就可以测出流体流速<*n style="font-family:'Times New Roman';font-size:10.5pt;">v=f<*n style="font-family:宋体;font-size:10.5pt;">·<*n style="font-family:'Times New Roman';font-size:10.5pt;">d/Sr<*n style="font-family:宋体;font-size:10.5pt;">，从而达到测量管道内流体流量的目的，即<*n style="font-family:'Times New Roman';font-size:10.5pt;">:Q=3.6<*n style="font-family:宋体;font-size:10.5pt;">×<*n style="font-family:'Times New Roman';font-size:10.5pt;">f/k(1)(k-<*n style="font-family:宋体;font-size:10.5pt;">仪表系数，次<*n style="font-family:'Times New Roman';font-size:10.5pt;">/<*n style="font-family:宋体;font-size:10.5pt;">升。
<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【进口<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">HTLJ<*n>系列涡街流量计<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-family:宋体;font-size:10.5pt;">技术参数<*n>
<*n style="font-family:宋体;font-size:10.5pt;">1<*n style="font-family:宋体;font-size:10.5pt;"> <*n>测量介质<*n style="font-family:'Times New Roman';font-size:10.5pt;">: <*n style="font-family:宋体;font-size:10.5pt;">液体、气体、过热<*n style="font-family:'Times New Roman';font-size:10.5pt;">/<*n style="font-family:宋体;font-size:10.5pt;">饱和蒸汽。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">2<*n style="font-family:宋体;font-size:10.5pt;"> <*n>测量范围<*n style="font-family:'Times New Roman';font-size:10.5pt;">: <*n style="font-family:宋体;font-size:10.5pt;">正常工作范围<*n style="font-family:'Times New Roman';font-size:10.5pt;">,<*n style="font-family:宋体;font-size:10.5pt;">雷诺数为<*n style="font-family:'Times New Roman';font-size:10.5pt;">20,000<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">7,000,000;<*n style="font-family:宋体;font-size:10.5pt;">测量可能范围雷诺数为<*n style="font-family:'Times New Roman';font-size:10.5pt;">8<*n style="font-family:宋体;font-size:10.5pt;">，<*n style="font-family:'Times New Roman';font-size:10.5pt;">000<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">7,000,000<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">3<*n style="font-family:宋体;font-size:10.5pt;">准确度<*n style="font-family:'Times New Roman';font-size:10.5pt;">:&nb*.<*n style="font-family:宋体;font-size:10.5pt;">液体，指示值的±<*n style="font-family:'Times New Roman';font-size:10.5pt;">0.5<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">b.<*n>液体，指示值的±<*n style="font-family:'Times New Roman';font-size:10.5pt;">1.0<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">c.<*n>气体，指示值的±<*n style="font-family:'Times New Roman';font-size:10.5pt;">1.0<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">d.<*n>蒸汽，指示值的±<*n style="font-family:'Times New Roman';font-size:10.5pt;">1.0<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">e.<*n>蒸汽，指示值的±<*n style="font-family:'Times New Roman';font-size:10.5pt;">1.5<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">4<*n style="font-family:宋体;font-size:10.5pt;"> <*n>重复性<*n style="font-family:'Times New Roman';font-size:10.5pt;">: <*n style="font-family:宋体;font-size:10.5pt;">≤准确度的<*n style="font-family:'Times New Roman';font-size:10.5pt;">1/3<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">5<*n style="font-family:宋体;font-size:10.5pt;"> <*n>输出信号<*n style="font-family:'Times New Roman';font-size:10.5pt;">:&nb*.<*n style="font-family:宋体;font-size:10.5pt;">三线制电压脉冲低电平<*n style="font-family:'Times New Roman';font-size:10.5pt;">:0<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">1V;<*n style="font-family:宋体;font-size:10.5pt;">高电平<*n style="font-family:'Times New Roman';font-size:10.5pt;">:<*n style="font-family:宋体;font-size:10.5pt;">大于<*n style="font-family:'Times New Roman';font-size:10.5pt;">4V;<*n style="font-family:宋体;font-size:10.5pt;">占空比为<*n style="font-family:'Times New Roman';font-size:10.5pt;">50<*n style="font-family:宋体;font-size:10.5pt;">％<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">b.<*n>二线制电流<*n style="font-family:'Times New Roman';font-size:10.5pt;">4mA<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">20mA<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">c.<*n>三线制电流<*n style="font-family:'Times New Roman';font-size:10.5pt;">4mA<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">20mA<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">d.RS-485<*n>通讯接口<*n>
<*n style="font-family:宋体;font-size:10.5pt;">6<*n style="font-family:宋体;font-size:10.5pt;">电源电压<*n style="font-family:'Times New Roman';font-size:10.5pt;">: 24VDC(<*n style="font-family:宋体;font-size:10.5pt;">二线制<*n style="font-family:'Times New Roman';font-size:10.5pt;">/RS485<*n style="font-family:宋体;font-size:10.5pt;">通讯<*n style="font-family:'Times New Roman';font-size:10.5pt;">)<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">7<*n style="font-family:宋体;font-size:10.5pt;"> <*n>介质温度<*n style="font-family:'Times New Roman';font-size:10.5pt;">: <*n style="font-family:宋体;font-size:10.5pt;">普通型<*n style="font-family:'Times New Roman';font-size:10.5pt;">-40<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+130<*n style="font-family:宋体;font-size:10.5pt;">℃<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">高温型<*n style="font-family:'Times New Roman';font-size:10.5pt;">-40<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+250<*n style="font-family:宋体;font-size:10.5pt;">℃<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">特高温型<*n style="font-family:'Times New Roman';font-size:10.5pt;">:-10<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+350<*n style="font-family:宋体;font-size:10.5pt;">℃<*n style="font-family:'Times New Roman';font-size:10.5pt;">;-10<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+380<*n style="font-family:宋体;font-size:10.5pt;">℃可选<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">防爆型<*n style="font-family:'Times New Roman';font-size:10.5pt;">-40<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+80<*n style="font-family:宋体;font-size:10.5pt;">℃<*n style="font-family:'Times New Roman';font-size:10.5pt;">;
<*n style="font-family:宋体;font-size:10.5pt;">8<*n style="font-family:宋体;font-size:10.5pt;"> <*n>工作压力<*n style="font-family:'Times New Roman';font-size:10.5pt;">: 2.5MPa(<*n style="font-family:宋体;font-size:10.5pt;">注<*n style="font-family:'Times New Roman';font-size:10.5pt;">:<*n style="font-family:宋体;font-size:10.5pt;">应用户要求，可提供其它压力等级的传感器，需定做<*n style="font-family:'Times New Roman';font-size:10.5pt;">)<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">9<*n style="font-family:宋体;font-size:10.5pt;">大气压力<*n style="font-family:'Times New Roman';font-size:10.5pt;">: 86kPa<*n style="font-family:宋体;font-size:10.5pt;">～<*n style="font-family:'Times New Roman';font-size:10.5pt;">106kPa<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">10<*n style="font-family:宋体;font-size:10.5pt;"> <*n>压力损失<*n style="font-family:'Times New Roman';font-size:10.5pt;">: <*n style="font-family:宋体;font-size:10.5pt;">Δ<*n style="font-family:'Times New Roman';font-size:10.5pt;">P=1.079<*n style="font-family:宋体;font-size:10.5pt;">×<*n style="font-family:'Times New Roman';font-size:10.5pt;">10-6 <*n style="font-family:宋体;font-size:10.5pt;">×ρ×<*n style="font-family:'Times New Roman';font-size:10.5pt;">V2(<*n style="font-family:宋体;font-size:10.5pt;">式中<*n style="font-family:'Times New Roman';font-size:10.5pt;">:<*n style="font-family:宋体;font-size:10.5pt;">Δ<*n style="font-family:'Times New Roman';font-size:10.5pt;">P-<*n style="font-family:宋体;font-size:10.5pt;">压力损失<*n style="font-family:'Times New Roman';font-size:10.5pt;">MPa;<*n style="font-family:宋体;font-size:10.5pt;">ρ<*n style="font-family:'Times New Roman';font-size:10.5pt;">-<*n style="font-family:宋体;font-size:10.5pt;">被测介质的密度<*n style="font-family:'Times New Roman';font-size:10.5pt;">kg/m 3;V-<*n style="font-family:宋体;font-size:10.5pt;">被测<*n>
<*n style="font-family:宋体;font-size:10.5pt;">介质的流速<*n style="font-family:'Times New Roman';font-size:10.5pt;">m/s)<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【进口<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">HTLJ<*n>系列涡街流量计<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-family:宋体;font-size:10.5pt;">本体材质<*n style="font-family:'Times New Roman';font-size:10.5pt;">:a.<*n style="font-family:宋体;font-size:10.5pt;">碳钢<*n style="font-family:'Times New Roman';font-size:10.5pt;">;b.<*n style="font-family:宋体;font-size:10.5pt;">不锈钢<*n style="font-family:'Times New Roman';font-size:10.5pt;">(1Cr18Ni9Ti)<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">【进口<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">HTLJ<*n>系列涡街流量计<*n style="font-size:10.5pt;line-height:1.5;font-family:宋体;">】<*n style="font-family:宋体;font-size:10.5pt;"> <*n>规格<*n style="font-family:'Times New Roman';font-size:10.5pt;">(<*n style="font-family:宋体;font-size:10.5pt;">管道内径<*n style="font-family:'Times New Roman';font-size:10.5pt;">):20<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">25<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">32<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">40<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">50<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">65<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">80<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">100<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">125<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">150<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">200<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">250<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">300<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">350<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">400<*n style="font-family:宋体;font-size:10.5pt;">、<*n style="font-family:'Times New Roman';font-size:10.5pt;">500mm<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;"> <*n>环境温度<*n style="font-family:'Times New Roman';font-size:10.5pt;">:-30<*n style="font-family:宋体;font-size:10.5pt;">℃～<*n style="font-family:'Times New Roman';font-size:10.5pt;">+60<*n style="font-family:宋体;font-size:10.5pt;">℃。<*n> <*n style="font-family:宋体;font-size:10.5pt;"> <*n style="font-family:宋体;font-size:10.5pt;"> <*n>相对湿度<*n style="font-family:'Times New Roman';font-size:10.5pt;">:5<*n style="font-family:宋体;font-size:10.5pt;">％～<*n style="font-family:'Times New Roman';font-size:10.5pt;">95<*n style="font-family:宋体;font-size:10.5pt;">％<*n>
<*n style="font-family:宋体;font-size:10.5pt;"> <*n>电缆接口<*n style="font-family:'Times New Roman';font-size:10.5pt;">:PG10<*n style="font-family:宋体;font-size:10.5pt;">。<*n> <*n style="font-family:宋体;font-size:10.5pt;"> <*n style="font-family:宋体;font-size:10.5pt;"> <*n>保护等级<*n style="font-family:'Times New Roman';font-size:10.5pt;">:IP65<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;"> <*n>防爆类型<*n style="font-family:'Times New Roman';font-size:10.5pt;">:<*n style="font-family:宋体;font-size:10.5pt;">隔爆型<*n style="font-family:'Times New Roman';font-size:10.5pt;">;<*n style="font-family:宋体;font-size:10.5pt;">防爆标志<*n style="font-family:'Times New Roman';font-size:10.5pt;">:Exd<*n style="font-family:宋体;font-size:10.5pt;">Ⅱ<*n style="font-family:'Times New Roman';font-size:10.5pt;">BT4;<*n style="font-family:宋体;font-size:10.5pt;">本安型<*n style="font-family:'Times New Roman';font-size:10.5pt;">;<*n style="font-family:宋体;font-size:10.5pt;">防爆标志<*n style="font-family:'Times New Roman';font-size:10.5pt;">:Exia<*n style="font-family:宋体;font-size:10.5pt;">Ⅱ<*n style="font-family:'Times New Roman';font-size:10.5pt;">CT6<*n style="font-family:宋体;font-size:10.5pt;">。<*n>
<*n style="font-family:宋体;font-size:10.5pt;">工作状况下流量范围<*n style="font-family:'Times New Roman';font-size:10.5pt;">(<*n style="font-family:宋体;font-size:10.5pt;">单位<*n style="font-family:'Times New Roman';font-size:10.5pt;">:m3 /h)<*n style="font-family:宋体;font-size:10.5pt;">，见表<*n style="font-family:'Times New Roman';font-size:10.5pt;">1(<*n style="font-family:宋体;font-size:10.5pt;">注<*n style="font-family:'Times New Roman';font-size:10.5pt;">:<*n style="font-family:宋体;font-size:10.5pt;">如果用户要求下限低，请来电告之，可定做<*n style="font-family:'Times New Roman';font-size:10.5pt;">)<*n style="font-family:宋体;font-size:10.5pt;">。

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