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            <h1 id="inside_rnewtil">压力/差压产品的应用</h1>
            <div class="inside_rnewtime">更新时间：2022-09-15  &nbsp;&nbsp;点击次数：1700次</div>
            <div class="inside_rnewcon"><p style="white-space: normal; margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><img src="https://img69.chem17.com/9/20220915/637988554604694838859.png" title="image.png" alt="image.png" style="white-space: normal; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255);"/></span></p><p style="white-space: normal; margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">德</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; line-height: 1.6; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">威尔差压表和所有德威尔立式或斜式气压计都可以对相比大气压的小于0.01英寸水柱的相对静压进行直接测量。如果使用气压计，最好选择斜式气压计，尤其在压力非常低的情况下，它可以测出准确的数据。</span></p><p style="white-space: normal; margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">将一个静压传感器安装在空气输送管或强制送风系统中，并正确连接到仪表的低压或高压端口，它就可以开始工作了。建议使用静态感应器或者尖管用以减少湍流的影响。当空气静态压力较高并且流速较低时，采用法兰连通输送管的管壁上的一个不带毛边的孔就可以得到满意的静压测量数据。</span></p><p style="white-space: normal; margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><img src="https://img64.chem17.com/9/20220915/637988554912807159990.png" title="image.png" alt="image.png"/></p><p><span style="color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255);">洗尘器通过使用一个可调式文丘里管来去除空气或气体中的尘土或微粒。为了调整文丘里管中的压力降，千斤顶螺旋驱动滑动叶片用于改变文丘里管狭槽的宽度。当操作人员将压差调整到所需或者设计的差压时，已被固定安装的德威尔差压仪表 可以用来显示文丘里管的压力降。在这个应用中，水可能进入仪表感应管路，所以有必要安装带有排水的阀门的导流管以排出管道中的水分。工程实践得出的宝贵经验是将差压仪表固定安装在侧量管线的上方，这样可以避免湿气在管道和仪表中聚集。实际应用中，应保证至少仪表安装要高于测量管线的低</span>点。</p><p><img src="https://img66.chem17.com/9/20220915/637988555840763954820.png" title="image.png" alt="image.png"/></p><p><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">德威尔差压表可以对采暖通风空调系统中防火风门的位置进行指示。应将仪表安装在检修</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">口（或者另一个方便的位置）上，并用其高压端端口感应逆流方向的管道静压，在事故时，防火风门关闭，仪表的读数会偏向高刻度端。在系统操作检查状态时，每一防火风门的状态可以方便地被检测，降低了系统检测的难度，节省了时间，为正常操作增加了更多的巡视。如果仪表的后部要暴露在充满尘土的空气中，请安装一个过滤头，过滤头一端和仪表的压力端相连，另一端连通大气，这样可以防止由于长时间使用仪表内灰尘的沉积。</span></p><p><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><img src="https://img66.chem17.com/9/20220915/637988556039830333979.png" title="image.png" alt="image.png"/></span></p><p><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255);">在恶劣环境或流量非常低的情况下，比如烟道气体流量的测量，使用专业设备“射流式流量计"可以更可靠的测量气流。和测量气体兼容的气体从喷嘴喷出，喷出的气体喷向和两个对称安装测量端口上，测量值会与烟道气的流量成正比。当气体流量不为零时，德威尔差压表的两个端口将会产生差压，其读数偏向高刻度。仪表可以进行直接校准，或者通过对照校准曲线或图表校准为英寸水柱的单位。向系统中注射溶剂，可以远程清洗这个设备。该仪表还可以“放大"测量值，以实现对更低的气体流速的读取。</span></span></p><p><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="color: rgb(34, 34, 34); 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