环压式不锈钢管国家标准对家装不锈钢水管运用的贡献
发布时间：2018-07-23 浏览次数：2898
<p style="margin: 0px; text-align: center; text-indent: 0pt;"><span style="margin: 0px; font-family: 宋体; font-size: 16pt;"><span style="font-family: 宋体;">环压式不锈钢管国家标准对家装不锈钢水管运用的贡献</span></span><span style="margin: 0px; font-family: 黑体; font-size: 10.5pt;"> </span></p>
<p style="margin: 0px; text-align: center; text-indent: 0pt;"><span style="margin: 0px; font-family: 宋体; font-size: 10.5pt;"> </span></p>
<p style="margin: 0px; text-align: justify; text-justify: inter-ideograph;"><span style="margin: 0px; font-family: 黑体; font-size: 10.5pt;"><span style="font-family: 黑体;">摘要：</span></span><span style="margin: 0px; color: #000000; font-family: 黑体; font-size: 10.5pt;"><span style="font-family: 黑体;">环压式不锈钢管</span>GB/T 33926-2017标准是按照GB/T 1.1-2009给出的规则进行首次起草，本文介绍了环压式连接，采标情况以及主要内容及对国内迅速兴起的家装不锈钢水管家用不锈钢水管的运用作出的贡献进行了详述。</span></p>
<p style="margin: 0px; text-align: justify; text-justify: inter-ideograph;"><span style="margin: 0px; font-family: 黑体; font-size: 10.5pt;"><span style="font-family: 黑体;">关键字：不锈钢环压式管件；标准；综述；家装不锈钢水管；家用不锈钢水管。</span></span></p>
<p style="margin: 0px;"><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="margin: 0px;">1.</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">环压式</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">不锈钢管</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">连接介绍</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">环压式连接是在管件承插口处设置宽带密封圈，采用专用环压工具钳压承口部位后断面呈环状压缩紧固密封的挤压式连接方式。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">环压管道主要应用领域在气体输送，如天然气、压缩空气、医疗气体等，以及给水输送，如自来水、直饮水等。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">在环压操作过程中，无需动用焊接和大型设备。先使用割刀断管，再将环压管件、密封圈和管材组合，通过使用手动液压泵或电动工具，将管件压接成型。压接成型后的环压连接管件有两个压缩环：密封环和锁紧环。其中密封环确保连接密封性能，锁紧环提供连接抗拉阻力。两环之间的部分被称为密封腔，通过收缩和挤压，原来的带状密封圈已经紧贴密封腔内壁形成填充式密封。因此整个连接形成较为宽泛的密封范围，较密封圈的密封可靠性更高。各项试验性能均能满足</span>GB/T 12771、DVGW W534、GB/T 19228.1的相关要求。</span></p>
<p style="margin: 0px;"><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="margin: 0px;">2.</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">标准采标情况</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">目前与之相应比较完善的现有相关国际标准或国外先进标准有</span>DVGWW534：1995饮水装置中的管接头，JWWA G116：2001供水管道用不锈钢管接头。国内标准有GB/T 19228.1不锈钢卡压式管件组 第1部分 不锈钢卡压式管件。 </span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">基于目前国内制造厂和用户的使用情况，综合对比分析我国标准与上述标准在标准结构、技术内容等方面的异同点，结合我国目前不锈钢焊接钢管的生产以及设计、使用单位的现状，确立本标准主要参照</span>DVGW W534及GB/T 19228.1制定，同时，本标准中的技术内容也参考了上述其他标准。</span></p>
<p style="margin: 0px;"><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="margin: 0px;">3.</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">标准的主要内容说明</span> </span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">3.1</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"> <span style="font-family: 宋体;">范围</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">该标准适用于公称尺寸不大于</span>DN150、公称压力不大于PN25的饮用净水、生活饮用水、冷水、热水、海水和消防，公称压力不大于PN16的医用气体、负压、压缩空气和虹吸排水，和公称压力不大于PN4的燃气等不锈钢管道连接用环压式管件的设计、制造和验收。</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">.2 规范性引用文件 </span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">规范性引用文件按照国家标准的统一导语，并根据被引用标准的情况，对所引用的标准采用不注日期引用。</span> </span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">.3 术语和定义</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">对环压式连接和热水进行了定义。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">.4 分类和标记</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">分类和标记部分参照同类国家标准</span>GB/T 19228.1的方式进行编制，同时根据环压适用范围将管道公称压力分为PN16和PN25，并在标记与标志中予以体现。</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">.5结构形式与尺寸</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">尺寸系列是在</span>GB/T 21835—2008选择，同时符合YB/T 4204—2009《供水用不锈钢焊接钢管》和YB/T 4370—2014《城镇燃气输送用不锈钢焊接钢管》的规定。</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">其结构形式是按照管件的特点进行确定，其中壁厚按公称压力等级进行了区分。管件、密封圈外型尺寸参考目前市面上成熟的、达到安装使用要求的环压管件尺寸确定。</span></span></p>
<p style="margin: 0px;"><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="margin: 0px;">4.</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="font-family: 黑体;">性能要求</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">性能要求主要为</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">密封</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">性能</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">、</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">连接性能</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">、卫生要求以及连接与安装。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">密封</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">性能为水压性能和气密性能。水压性能的压力值是按额定工作压力的</span>1.5倍确定的。气密性能的压力值是参考GB/T 19228.1确定的。考虑到本标准规定的管件工作压力的因素将气密性能试验压力统一定为1.05MPa.</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">管件的连接性能要求基本采用</span>DVGW W534规定的项目进行。包括耐压试验、负压试验、拉拔试验、温度变化（冷热水循环）试验、交变弯曲试验、振动应变试验和压力冲击（波动）试验。以上试验过程中，管件应无渗漏、脱落和塑性变形。</span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-indent: 24pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">卫生要求符合</span></span><span style="margin: 0px; color: #000000; font-family: Calibri; font-size: 12pt;">GB/T</span><span style="margin: 0px; color: #000000; letter-spacing: -2.65pt; font-family: 宋体; font-size: 12pt;"> </span><span style="margin: 0px; color: #000000; font-family: Calibri; font-size: 12pt;">17219</span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">的规定。连接与安装符合</span>GB/T</span><span style="margin: 0px; color: #000000; letter-spacing: -2pt; font-family: 宋体; font-size: 12pt;"> </span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;">29038<span style="font-family: 宋体;">等相关标准或规范的规定。</span></span></p>
<p style="margin: 0px;"><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"><span style="margin: 0px;">5.</span></span><span style="margin: 0px; font-family: 黑体; font-size: 12pt;"> <span style="font-family: 黑体;">总结</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"> <span style="font-family: 宋体;">目前我国不锈钢管道行业发展迅猛，环压连接技术作为一种</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">安装方便、密封性能好、可靠高的</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">连接技术，已经大量运用于供水燃气等管道工程当中。《不锈钢环压式管件》标准的实施，无疑对整个行业来讲，</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">尤其是家庭家装不锈钢水管家用不锈钢水管的兴起，</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">能起到更好的指导意义，而且该标准中相关性能要求已经达到了或者优于国外同类产品标准的先进水平。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"> <span style="font-family: 宋体;">当然，技术力量要不断的向前发展，该标准也会在工程实践过程中进一步检验和更新，为推动我国不锈钢管道行业</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">尤其是家庭家装不锈钢水管家用不锈钢水管</span></span><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;">的产品设计、制造和安装的技术进步做出贡献。</span></span></p>
<p style="margin: 16px 0px; text-align: justify; line-height: 23pt; text-justify: inter-ideograph;"><span style="margin: 0px; color: #000000; font-family: 宋体; font-size: 12pt;"><span style="font-family: 宋体;"><img alt="" style="background-color: transparent; border-image-outset: 0; border-image-repeat: stretch; border-image-slice: 100%; border-image-source: none; border-image-width: 1; color: #000000; font-family: 宋体; font-size: 21.33px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: center; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; border: 0px none #000000;" src="/upfile/2018/08/20180819223340_205.jpg" width="132" height="43" /><strong> </strong><em> </em><br /></span></span></p>
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