<p style="margin: 0px; text-align: center; text-indent: 0pt;"><span style="margin: 0px; font-family: 宋體; font-size: 16pt;"><span style="font-family: 宋體;">環(huán)壓式不銹鋼管國家標準對家裝不銹鋼水管運用的貢獻</span></span><span style="margin: 0px; font-family: 黑體; font-size: 10.5pt;">&nbsp;</span></p> <p style="margin: 0px; text-align: center; text-indent: 0pt;"><span style="margin: 0px; font-family: 宋體; font-size: 10.5pt;">&nbsp;</span></p> <p style="margin: 0px; text-align: justify; text-justify: inter-ideograph;"><span style="margin: 0px; font-family: 黑體; font-size: 10.5pt;"><span style="font-family: 黑體;">摘要：</span></span><span style="margin: 0px; color: #000000; font-family: 黑體; font-size: 10.5pt;"><span style="font-family: 黑體;">環(huán)壓式不銹鋼管</span>GB/T 33926-2017標準是按照GB/T 1.1-2009給出的規(guī)則進行首次起草，本文介紹了環(huán)壓式連接，采標情況以及主要內(nèi)容及對國內(nèi)迅速興起的家裝不銹鋼水管家用不銹鋼水管的運用作出的貢獻進行了詳述。</span></p> <p style="margin: 0px; text-align: justify; text-justify: inter-ideograph;"><span style="margin: 0px; font-family: 黑體; font-size: 10.5pt;"><span style="font-family: 黑體;">關鍵字：不銹鋼環(huán)壓式管件；標準；綜述；家裝不銹鋼水管；家用不銹鋼水管。</span></span></p> <p style="margin: 0px;"><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="margin: 0px;">1.</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">環(huán)壓式</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">不銹鋼管</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">連接介紹</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">環(huán)壓式連接是在管件承插口處設置寬帶密封圈，采用專用環(huán)壓工具鉗壓承口部位后斷面呈環(huán)狀壓縮緊固密封的擠壓式連接方式。</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">環(huán)壓管道主要應用領域在氣體輸送，如天然氣、壓縮空氣、醫(yī)療氣體等，以及給水輸送，如自來水、直飲水等。</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">在環(huán)壓操作過程中，無需動用焊接和大型設備。先使用割刀斷管，再將環(huán)壓管件、密封圈和管材組合，通過使用手動液壓泵或電動工具，將管件壓接成型。壓接成型后的環(huán)壓連接管件有兩個壓縮環(huán)：密封環(huán)和鎖緊環(huán)。其中密封環(huán)確保連接密封性能，鎖緊環(huán)提供連接抗拉阻力。兩環(huán)之間的部分被稱為密封腔，通過收縮和擠壓，原來的帶狀密封圈已經(jīng)緊貼密封腔內(nèi)壁形成填充式密封。因此整個連接形成較為寬泛的密封范圍，較密封圈的密封可靠性更高。各項試驗性能均能滿足</span>GB/T 12771、DVGW W534、GB/T 19228.1的相關要求。</span></p> <p style="margin: 0px;"><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="margin: 0px;">2.</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">標準采標情況</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">目前與之相應比較完善的現(xiàn)有相關國際標準或國外先進標準有</span>DVGWW534：1995飲水裝置中的管接頭，JWWA G116：2001供水管道用不銹鋼管接頭。國內(nèi)標準有GB/T 19228.1不銹鋼卡壓式管件組 第1部分 不銹鋼卡壓式管件。 </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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">基于目前國內(nèi)制造廠和用戶的使用情況，綜合對比分析我國標準與上述標準在標準結(jié)構(gòu)、技術內(nèi)容等方面的異同點，結(jié)合我國目前不銹鋼焊接鋼管的生產(chǎn)以及設計、使用單位的現(xiàn)狀，確立本標準主要參照</span>DVGW W534及GB/T 19228.1制定，同時，本標準中的技術內(nèi)容也參考了上述其他標準。</span></p> <p style="margin: 0px;"><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="margin: 0px;">3.</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">標準的主要內(nèi)容說明</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: 宋體; font-size: 12pt;">3.1</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">&nbsp;<span style="font-family: 宋體;">范圍</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">該標準適用于公稱尺寸不大于</span>DN150、公稱壓力不大于PN25的飲用凈水、生活飲用水、冷水、熱水、海水和消防，公稱壓力不大于PN16的醫(yī)用氣體、負壓、壓縮空氣和虹吸排水，和公稱壓力不大于PN4的燃氣等不銹鋼管道連接用環(huán)壓式管件的設計、制造和驗收。</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: 宋體; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">.2 規(guī)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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">規(guī)范性引用文件按照國家標準的統(tǒng)一導語，并根據(jù)被引用標準的情況，對所引用的標準采用不注日期引用。</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: 宋體; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">.3 術語和定義</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">對環(huán)壓式連接和熱水進行了定義。</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: 宋體; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">.4 分類和標記</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">分類和標記部分參照同類國家標準</span>GB/T 19228.1的方式進行編制，同時根據(jù)環(huán)壓適用范圍將管道公稱壓力分為PN16和PN25，并在標記與標志中予以體現(xiàn)。</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: 宋體; font-size: 12pt;">3</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">.5結(jié)構(gòu)形式與尺寸</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">尺寸系列是在</span>GB/T 21835&mdash;2008選擇，同時符合YB/T 4204&mdash;2009《供水用不銹鋼焊接鋼管》和YB/T 4370&mdash;2014《城鎮(zhèn)燃氣輸送用不銹鋼焊接鋼管》的規(guī)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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">其結(jié)構(gòu)形式是按照管件的特點進行確定，其中壁厚按公稱壓力等級進行了區(qū)分。管件、密封圈外型尺寸參考目前市面上成熟的、達到安裝使用要求的環(huán)壓管件尺寸確定。</span></span></p> <p style="margin: 0px;"><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="margin: 0px;">4.</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="font-family: 黑體;">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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">性能要求主要為</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">密封</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">性能</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">、</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">連接性能</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">、衛(wèi)生要求以及連接與安裝。</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">密封</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">性能為水壓性能和氣密性能。水壓性能的壓力值是按額定工作壓力的</span>1.5倍確定的。氣密性能的壓力值是參考GB/T 19228.1確定的?？紤]到本標準規(guī)定的管件工作壓力的因素將氣密性能試驗壓力統(tǒng)一定為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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">管件的連接性能要求基本采用</span>DVGW W534規(guī)定的項目進行。包括耐壓試驗、負壓試驗、拉拔試驗、溫度變化（冷熱水循環(huán)）試驗、交變彎曲試驗、振動應變試驗和壓力沖擊（波動）試驗。以上試驗過程中，管件應無滲漏、脫落和塑性變形。</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">衛(wèi)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: 宋體; font-size: 12pt;">&nbsp;</span><span style="margin: 0px; color: #000000; font-family: Calibri; font-size: 12pt;">17219</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">的規(guī)定。連接與安裝符合</span>GB/T</span><span style="margin: 0px; color: #000000; letter-spacing: -2pt; font-family: 宋體; font-size: 12pt;">&nbsp;</span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;">29038<span style="font-family: 宋體;">等相關標準或規(guī)范的規(guī)定。</span></span></p> <p style="margin: 0px;"><span style="margin: 0px; font-family: 黑體; font-size: 12pt;"><span style="margin: 0px;">5.</span></span><span style="margin: 0px; font-family: 黑體; font-size: 12pt;">&nbsp;<span style="font-family: 黑體;">總結(jié)</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: 宋體; font-size: 12pt;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="font-family: 宋體;">目前我國不銹鋼管道行業(yè)發(fā)展迅猛，環(huán)壓連接技術作為一種</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">安裝方便、密封性能好、可靠高的</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">連接技術，已經(jīng)大量運用于供水燃氣等管道工程當中?！恫讳P鋼環(huán)壓式管件》標準的實施，無疑對整個行業(yè)來講，</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">尤其是家庭家裝不銹鋼水管家用不銹鋼水管的興起，</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">能起到更好的指導意義，而且該標準中相關性能要求已經(jīng)達到了或者優(yōu)于國外同類產(chǎn)品標準的先進水平。</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: 宋體; font-size: 12pt;">&nbsp;&nbsp;&nbsp;&nbsp;<span style="font-family: 宋體;">當然，技術力量要不斷的向前發(fā)展，該標準也會在工程實踐過程中進一步檢驗和更新，為推動我國不銹鋼管道行業(yè)</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">尤其是家庭家裝不銹鋼水管家用不銹鋼水管</span></span><span style="margin: 0px; color: #000000; font-family: 宋體; font-size: 12pt;"><span style="font-family: 宋體;">的產(chǎn)品設計、制造和安裝的技術進步做出貢獻。</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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;"><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: 宋體; 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>&nbsp;</strong><em>&nbsp;</em><br /></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: 宋體; font-size: 12pt;"><span style="font-family: 宋體;"><strong>&nbsp;</strong><em></em><br /></span></span></p> <p><strong>&nbsp;</strong><em></em></p>