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src="https://tyunfile.71360.com/UploadFile/xdgc123/637304914387968750/2203014.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v78ayvg" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xdgc123/637304914387968750/2203014.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="w4p32yc" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣州壓力管道,管道</p><p><span>***更新：</span>2021-01-08 06:08:51</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mdkrw3t" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">興鼎工程（深圳）有限公司</a></p><p><span>聯(lián)系人：</span>肖甜甜</p><p><span>郵箱: </span>3179218391@qq.com</p><p><span>電話: </span>18926000322</p><p><span>傳真: </span>0788_28485033</p><p><span>網(wǎng)址: </span>https://www.szxdgc.cn</p><p><span>手機: </span>0788-28482399</p><p><span>地址: </span>坂田街道水庫路2號6棟11層?</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="agnzbaw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tc8rtam" class="box"><p><p style="text-indent:25px">壓力管道安裝應(yīng)該如何進(jìn)行？安裝的工藝要求是：按先內(nèi)管后夾套管的工藝要求進(jìn)行，硬度不應(yīng)作為熱處理是否合格的*依據(jù)，應(yīng)根據(jù)焊接工藝評定提出預(yù)熱要求。當(dāng)環(huán)境溫度低于施焊材料的低允許溫度時，明確控制熱處理過程是熱處理質(zhì)量的主要手段的觀點，敷設(shè)方式有架空、沿地、埋地，甚至經(jīng)常是高空作業(yè)，環(huán)境條件較差，質(zhì)量控制要求較高，廣州壓力管道。應(yīng)檢查熱處理過程是否受控，根據(jù)壓力管道的施工要求，液體管道的試驗壓力應(yīng)以高點的壓力為準(zhǔn)，但低點的壓力不得超過管道組成件的承受能力，以確定熱處理結(jié)果是否合格和是否需要返修。壓力管道安裝的作業(yè)一般都在室外，其質(zhì)量的好壞、效率的高低直接影響工程的安全運行和制造工期，廣州壓力管道，當(dāng)環(huán)境溫度低于施焊材料的低允許溫度時，因此過程質(zhì)量的控制顯得更為重要。管道下溝前必須對防腐層進(jìn)行外觀檢查，當(dāng)超過規(guī)定值時，回填后必須對防腐層完整性進(jìn)行全線檢查，當(dāng)焊件表面潮濕，或在下雨、刮風(fēng)期間，廣州壓力管道，焊工及焊件無保護(hù)措施或采取措施仍達(dá)不到要求時，不合格必須返工處理直至合格。蒸汽保溫管安裝認(rèn)真閱讀制造廠商提供的使用說明及有關(guān)的技術(shù)資料。廣州壓力管道</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州壓力管道,管道" src="https://tyunfile.71360.com/UploadFile/xdgc123/637304914387968750/2203014.png"></div><p style="text-indent:25px">氣體管道安裝：管道連接外部乙炔管道均采用焊接(自動軌道焊或氬弧焊)。當(dāng)管道采用鋼塑復(fù)合管時，則采用法蘭連接。管道與閥門、設(shè)備、儀表的連接采用法蘭連接，特殊情況下可采用螺紋連接。螺紋連接時要采用聚四氟乙烯密封膠帶作填料，不得采用鉛油線麻作填料。管道試驗乙炔管道安裝后應(yīng)進(jìn)行強度試驗和嚴(yán)密性試驗，試驗要求見表。嚴(yán)密性試驗時要進(jìn)行漏氣率檢驗。即達(dá)到試驗壓力后，在所有連接處涂以肥皂水，檢查是否有漏氣現(xiàn)象。發(fā)現(xiàn)漏氣應(yīng)及時處理；無明顯漏氣時，停止24h后計算平均每小時的漏氣率，若不大于0.5％則管道試驗合格。管道吹掃管道試驗合格后需用壓縮空氣將管道吹掃干凈。管道通乙炔前要用干燥的氮氣吹掃，排除管道內(nèi)空氣，并在管道末端檢查排出的氮氣內(nèi)含氧量低于3％則為合格。通乙炔氣時管內(nèi)必須充滿氮氣。要禁止火源帶入現(xiàn)場并注意防毒。深圳真空系統(tǒng)管道安裝改造公司連接到閥門或調(diào)節(jié)裝置時，才可以使用壓力配件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州壓力管道,管道" src="https://tyunfile.71360.com/UploadFile/xdgc123/637304913768105469/8003310.png"></div><p style="text-indent:25px">氣體管道工程安裝：聯(lián)接方法。管子、管子聯(lián)接件、閥門和設(shè)備上的進(jìn)出接管間的聯(lián)接方法，由氣體的性質(zhì)、壓力和溫度以及管子的材質(zhì)、尺寸和安裝場所等因素決定，主要有螺紋聯(lián)接、法蘭聯(lián)接、承插聯(lián)接和焊接等四種方法。螺紋聯(lián)接。主要適用于小直徑管道。聯(lián)接時，一般要在螺紋聯(lián)接部分纏上氟塑料密封帶，或涂上厚漆、繞上麻絲等密封材料，以防止泄漏。在1.6兆帕以上壓力時，一般在管子端面加墊片密封。這種聯(lián)接方法簡單，可以拆卸重裝，但須在管道的適當(dāng)?shù)胤桨惭b活接頭，以便于拆裝。</p><p style="text-indent:25px">氧氣管道安裝：脫脂。保證氧氣管道安裝質(zhì)量的關(guān)鍵環(huán)節(jié)之一。脫脂溶劑有四氯化碳、二氯乙烷、精餾乙醇、三氯乙烯等，以四氯化碳應(yīng)用較多。四氯化碳、二氯乙烷有毒性和腐蝕性，二氯乙烷、精餾乙醇有易燃、易爆性，使用時要采取防護(hù)措施。脫脂地點要通風(fēng)良好，嚴(yán)禁煙火。脫脂方法有槽式脫脂法、灌洗法、拉洗法和在線脫脂法等。(1)槽式脫脂法。根據(jù)管子的長度與數(shù)量制作脫脂槽，槽中放入脫脂劑，將需脫脂的管子和管件置于槽中清洗10～15min，取出進(jìn)行干燥和封閉。(2)灌洗法。適用于管子和容器，將管子一端用木塞堵嚴(yán)，灌入脫脂劑。再把另一端堵住，進(jìn)行翻立或轉(zhuǎn)動，使其內(nèi)表面與脫脂劑接觸時間不少于15min。(3)拉洗法。用舊布、鐵線作成塞子，浸蘸脫脂劑在管腔內(nèi)來回拖拉，較后用干布擦拭干凈，風(fēng)干后封閉。氣體管道可能承受許多種外力的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州壓力管道,管道" src="https://tyunfile.71360.com/UploadFile/xdgc123/637304913716777344/3936614.png"></div><p style="text-indent:25px">隨著社會不斷的發(fā)展，越來越多的企業(yè)開始使用化學(xué)品和化學(xué)氣體來提高產(chǎn)品質(zhì)量，潔凈廠房中的氣體管道是指氣體壓力小于等于0.8MPa的氫氣、氧氣、氮氣、壓縮空氣、燃?xì)獾纫话銡怏w和高純氣體管道及真空管道，無塵車間內(nèi)由于需要保證室內(nèi)空間潔凈，室內(nèi)不可以與外界直接接觸，也就導(dǎo)致了空氣可出入路徑有限。氣體管道的安裝非常嚴(yán)格，那么無塵車間氣體管道工程有什么安裝要求呢?1、管道敷設(shè)應(yīng)符合設(shè)計要求，設(shè)計無要求時，輸送干燥氣體的管道宜水平安裝;輸送潮濕氣體的管道應(yīng)安裝成有不小于0.003的坡度，坡度應(yīng)坡向冷凝水收集器;2、管道的連接采用焊接，并采用鎢極氬弧焊打底，手工電弧焊蓋面工藝。不銹鋼管焊接或點固焊均應(yīng)采取管內(nèi)充氬保護(hù)措施;3、氣體管道與設(shè)備、閥門及其他附件應(yīng)采用法蘭或螺紋連接。螺紋接頭的填料必須采用聚四氟乙烯薄膜;4、有接地要求的氣體管道，法蘭間必須焊有導(dǎo)電跨線，其導(dǎo)線截面及焊接搭接長度應(yīng)符合設(shè)計要求，焊點必須牢固、可靠。常用鋁及鋁合金管鋁管的較高運用溫度不得超越200℃。蒸汽管道設(shè)計施工</p><p style="text-indent:25px">化工管道腐蝕泄漏修復(fù)方法就是補焊、打卡子或者做管箍、更換密封件、密封膠堵漏等方式。廣州壓力管道</p><p style="text-indent:25px">氣體管道的管道如不能自由地伸縮，就會產(chǎn)生巨大的附加應(yīng)力。因此，在溫度變化較大的管道和需要有自由位移的常溫管道上，需要設(shè)置膨脹節(jié)，使管道的伸縮得到補償而消除附加應(yīng)力的影響。對于蒸汽管道、高溫管道、低溫管道以及有防燙、防凍要求的管道，需要用保溫材料包覆在管道外面，防止管內(nèi)熱(冷)量的損失或產(chǎn)生凍結(jié)。常用的保溫材料有水泥珍珠巖、玻璃棉、巖棉和石棉硅藻土等。管子、管子聯(lián)接件、閥門和設(shè) 備上的進(jìn)出接管間的聯(lián)接方法，由氣體的性質(zhì)、壓力和溫度以及管子的材質(zhì)、尺寸和安裝場所等因素決定，主要有螺紋聯(lián)接、法蘭聯(lián)接、承插聯(lián)接和焊接等四種方法。蒸汽管道分為兩種工作狀態(tài)，一個溫度高，一個近似于環(huán)境溫度，在冷熱交替變換中，會因為熱脹冷縮原理而產(chǎn)生位移和受力，管道越長，位移和受到的力越大，為了防止管道發(fā)生損壞，需要采取措施進(jìn)行規(guī)避，于是就有了這個彎，也被稱作為“膨脹節(jié)”，是用來吸收管子軸向膨脹位移的，也有躲避混凝土梁柱的要求，一舉兩得。廣州壓力管道</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2753790.html</p></div></div></div></div></div><div id="b7kzlse" class="page-right twoColRt"><div id="rgfrtvc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="aubdvho" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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