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            <h1 id="inside_rnewtil">国产差压表-认同与创新</h1>
            <div class="inside_rnewtime">更新时间：2021-09-17  &nbsp;&nbsp;点击次数：2098次</div>
            <div class="inside_rnewcon"><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 28px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">压差表</span><span style="font-family:宋体">(英文名：differential pressure gauge)，一般采用</span></span><span style="font-family: 宋体;line-height: 22px;color: rgb(51, 51, 51);font-size: 15px"><span style="font-family:宋体">双波纹管结构，即两只波纹管</span></span><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">分别</span></span><span style="font-family: 宋体;line-height: 22px;color: rgb(51, 51, 51);font-size: 15px"><span style="font-family:宋体">安装在</span><span style="font-family:宋体">“工"字型支架两侧的对称位置上。当施加不同压力（一般高压端高于低压端）时，两波纹管作用在活动支架上的力则不相等，使分别产生的位移，并带动齿轮传动机构传动并予放大，由指针偏转后指示的差压值。</span></span><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">可以迅速测量出空气或非腐蚀性气体的微压</span><span style="font-family:宋体">-正压、负压(真空)或差压。主要用于测量药厂、电子厂洁净室洁净厂房的正负压差，暖通空调,净化空调,净化台风淋室专用表，洁净空调过滤网压差的检测等。</span></span></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 28px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">我国压差表行业经过几十年的发展，虽然得到了快速发展，但与国外的差距仍然较大，主要体现在：科技创新及其产业化进展缓慢；关键核心技术匮乏，低水平重复异常突出；产品稳定性和可靠性长期得不到根本性解决；大量进口对产业发展造成较大不利影响等。</span></span></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;line-height: 1.5px;background: rgb(255, 255, 255)"><strong><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">国产差压表与德威尔差压表的比较</span></span></strong><strong></strong></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 29px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">以美国德威尔仪器仪表制造有限公司作为对象进行比较，德威尔公司成立于</span><span style="font-family:宋体">1931年，在近90年里建立起完善的制造工厂、产品流水线和</span></span><span style="font-family: Helvetica;line-height: 21px;color: rgb(51, 51, 51);font-size: 14px"><span style="font-family:Helvetica">辅助设施</span></span><span style="font-family: 宋体;line-height: 21px;color: rgb(51, 51, 51);font-size: 14px"><span style="font-family:宋体">、</span></span><span style="font-family: Helvetica;line-height: 21px;color: rgb(51, 51, 51);font-size: 14px"><span style="font-family:Helvetica">标准并且完善的客户服务系统</span>——包括具有竞争力的价格，知识渊博、礼仪周到的技术支持</span><span style="font-family: 宋体;line-height: 21px;color: rgb(51, 51, 51);font-size: 14px"><span style="font-family:宋体">。有一定的国际市场。</span></span></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 29px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">又以</span><span style="font-family:宋体">Dwyer 2000系列Magnehelica差压表为例，精度可以达到2%满刻度以内，以及多达81种量程范围选择，可以满足各种应用需要。2000系列差压表采用德威尔简单、无磨损的Magnehelica活动部件，可迅速指示空气或非腐蚀性气体的低压-正压、负压（真空）或差压皆可。其设计抗冲击、防震，且具有抗过压能力。它没有液体差压表的蒸发、冻结现象，也不会导致中毒或水准问题。2000系列差压表广泛用来测量风扇、鼓风机的压力、过滤器阻力、风速、炉体通风、孔板造成的压降，发泡系统的液位和流体放大器的压力或液压系统的压力，还能检测气体-空气比率控制和自动阀门，及监测药学护理设备的血液和呼吸压力等领域。</span></span></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 29px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">在项目产品选型的过程中，差压表产品的质量和后期服务则成了行业用户的焦点。我国仪表制造企业往往规模小，产值低，所生产的差压表尚且模仿国际品牌差压表的名称，品质（包括用材和精度）上还存在不少问题。因此，尽管大部分行业客户都对我国压差表企业的发展速度很产品都持乐观的态度，但是在相同的技术条件下的产品，他们还是优先考虑选用德威尔的产品。较之国内，其有着可靠，产品有丰富的应用案例经验和良好的售后服务保障。</span></span></p><p style="font-size: medium;white-space: normal;margin-bottom: 15px;text-indent: 29px;line-height: 1.5px;background: rgb(255, 255, 255)"><span style="font-family: 宋体;line-height: 22px;color: rgb(47, 47, 47);font-size: 15px"><span style="font-family:宋体">只有我国不断完善新技术市场化所需要的市场环境，建立强有力的研究支援体制，培养高层次的复合型人才，充分发现、利用、集成各种新原理、新概念、新技术、新材料和新工艺等新科技成果，才能在一边倒的行业竞争中突出重围！要扭转行业用户对国产品牌的信任度，还需要一段很长的路要走。国产压差表企业在坚定走产品创新之路的同时，更要加强对行业用户的情感培养，以良好的产品质量和持续性的销售策略做铺垫，走出技术创新的康庄大道！</span></span></p><p><br/></p><p><br/></p></div>
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