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src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637381951116551171/3006940.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="txur3o7" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637381951116551171/3006940.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lub29fu" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家,電動(dòng)</p><p><span>***更新：</span>2021-02-05 07:12:02</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rgy393u" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇蘭閥通用設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>金</p><p><span>郵箱: </span>81768246@qq.com</p><p><span>電話: </span>13915001988</p><p><span>傳真: </span>0519_</p><p><span>網(wǎng)址: </span>http://www.lanfa.cn</p><p><span>手機(jī): </span>0519-88610258</p><p><span>地址: </span>橫山橋鎮(zhèn)省莊村</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="oyvcubd" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="nbdz3yp" class="box"><p><p style="text-indent:25px">供熱系統(tǒng)中電動(dòng)調(diào)節(jié)閥的設(shè)計(jì)選型：設(shè)計(jì)選型原則供熱系統(tǒng)較終目的是熱力工況的平衡，換熱器的換熱量適應(yīng)供熱負(fù)荷的變化。調(diào)節(jié)閥的開(kāi)度變化與換熱器換熱量的變化成線性關(guān)系，是供熱系統(tǒng)調(diào)節(jié)的較佳原則，江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家。熱力站水-水換熱器的換熱特性是一條上拋型曲線，所以選擇等百分比流量特性的調(diào)節(jié)閥。為了在實(shí)際工作中保證調(diào)節(jié)閥的調(diào)節(jié)性能，要求調(diào)節(jié)閥的閥權(quán)度不應(yīng)小于0.25～0.3，江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家。電動(dòng)調(diào)節(jié)閥的閥體口徑按照流通能力Kvs選擇，江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家，執(zhí)行機(jī)構(gòu)的選型需要滿足較大關(guān)閉壓差的要求。改變閥門(mén)的阻力系數(shù)就可以對(duì)工藝參數(shù)進(jìn)行調(diào)節(jié)。江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家,電動(dòng)" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637381951116551171/3006940.png"></div><p style="text-indent:25px">注意事項(xiàng)： 1.為了使調(diào)節(jié)閥在發(fā)生故障或維修的情況下使生產(chǎn)過(guò)程能繼續(xù)進(jìn)行，調(diào)節(jié)閥應(yīng)加旁通管路。同時(shí)還應(yīng)特別注意，調(diào)節(jié)閥的安裝位置是否符合工藝過(guò)程的要求。 2.電動(dòng)調(diào)節(jié)閥的電氣部分安裝應(yīng)根據(jù)有關(guān)電氣設(shè)備施工要求進(jìn)行。如是隔爆型產(chǎn)品應(yīng)按《危險(xiǎn)場(chǎng)所電氣設(shè)備安裝規(guī)范》要求進(jìn)行安裝。如現(xiàn)場(chǎng)導(dǎo)線采用SBH型或其它六芯或八芯、外徑為??11.3 mm左右的膠皮安裝電纜線。在使用維修中，在易爆場(chǎng)所嚴(yán)禁通電開(kāi)蓋維修和對(duì)隔爆面進(jìn)行撬打。同時(shí)在拆裝中不要磕傷或劃傷隔爆面，檢修后要還原成原來(lái)的隔爆要求狀態(tài)。 3執(zhí)行機(jī)構(gòu)的減速器拆修后應(yīng)注意加油潤(rùn)滑，低速電機(jī)一般不要拆洗加油。裝配后還應(yīng)檢查閥位與閥位開(kāi)度指示是否相符。江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家在應(yīng)用中應(yīng)特別注意其允許壓差，防止閥門(mén)關(guān)不死。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家,電動(dòng)" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637381951161375390/2242669.png"></div><p style="text-indent:25px">使用電動(dòng)調(diào)節(jié)閥時(shí)常見(jiàn)問(wèn)題： 1.雙座閥小開(kāi)度工作振蕩：對(duì)于雙座閥它主要的優(yōu)點(diǎn)就是在流開(kāi)型上，閥門(mén)的穩(wěn)定性很好，雙座閥是有2個(gè)閥芯的，下閥芯處于流閉，上閥芯處于流開(kāi)，這樣，在小開(kāi)度工作時(shí)，流閉型的閥芯就容易引起閥的振動(dòng)，這就是雙座閥不能用于小開(kāi)度工作的原因所在。 2.直行程調(diào)節(jié)閥防堵性能差而角行程閥防堵性能好：直行程閥閥芯是垂直節(jié)流，而介質(zhì)是水平流進(jìn)流出，閥腔內(nèi)流道必然轉(zhuǎn)彎倒拐，使閥的流路變得相當(dāng)復(fù)雜(形狀如倒“S”型)。這樣，存在許多死區(qū)，為介質(zhì)的沉淀提供了空間，長(zhǎng)此以往，造成堵塞。角行程閥節(jié)流的方向就是水平方向，介質(zhì)水平流進(jìn)，水平流出，容易把不干凈介質(zhì)帶走，同時(shí)流路簡(jiǎn)單，介質(zhì)沉淀的空間也很少，所以角行程閥防堵性能好。</p><p style="text-indent:25px"> 電動(dòng)調(diào)節(jié)閥優(yōu)點(diǎn) 1．流體阻力小，全通徑的球閥基本沒(méi)有流阻。 2．結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。 3．緊密可靠，它有兩個(gè)密封面，而且目前球閥的密封面材料普遍使用各種塑料，密封性好，能實(shí)現(xiàn)完全密封。在真空系統(tǒng)中也已普遍使用。 4．操作方便，開(kāi)閉迅速，從全開(kāi)到全關(guān)只要旋轉(zhuǎn) 90°，便于遠(yuǎn)距離的控制。 5．維修方便，球閥結(jié)構(gòu)簡(jiǎn)單，密封圈一般都是活動(dòng)的，拆卸更換都比較方便。 6．在全開(kāi)或全閉時(shí)，球體和閥座的密封面與介質(zhì)隔離，介質(zhì)通過(guò)時(shí)，不會(huì)引起閥門(mén)密封面的侵蝕。 7．適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應(yīng)用。 8．由于球閥在啟閉過(guò)程中有摩擦性，所以可用于帶懸浮固體顆粒的介質(zhì)中。電動(dòng)調(diào)節(jié)閥性能特點(diǎn)：控制簡(jiǎn)單，且本質(zhì)安全。不需另外再采取防爆措施。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家,電動(dòng)" src="https://tyunfile.71360.com/UploadFile/lanfatonyon/637381951047967186/6093875.png"></div><p style="text-indent:25px">電動(dòng)閥特點(diǎn)：1、結(jié)構(gòu)緊湊、設(shè)計(jì)合理、閥門(mén)剛性好，通道流暢，流阻系數(shù)小。2、密封面采用不銹鋼和硬質(zhì)合金，使用壽命長(zhǎng)。3、采用柔性石墨填料板、密封可靠、操作輕便靈活。4、驅(qū)動(dòng)方式分手動(dòng)、電動(dòng)、氣動(dòng)、齒輪傳動(dòng)、結(jié)構(gòu)形式；彈性楔式單閥、剛性楔式單閥板和雙閘板型式。5、普遍適用于石油、化工、火力發(fā)電廠等油品、水、蒸汽管路上作接通或截?cái)喙苈分薪橘|(zhì)的啟閉裝置。6、閥桿經(jīng)調(diào)質(zhì)及表面氮化處理，有良好的抗腐蝕性、抗擦傷性和耐磨性。7、采用楔式彈性閘板結(jié)構(gòu)，中大口徑設(shè)置推力軸承，磨擦力小，并配有撞擊手動(dòng)，啟閉輕松自如。8、可采用各種配管法蘭標(biāo)準(zhǔn)及法蘭密封面形式，滿足各種工程需要及用戶要求。電動(dòng)調(diào)節(jié)閥安裝調(diào)節(jié)閥的管道一般不要離地面或地板太高。江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家</p><p style="text-indent:25px">電動(dòng)調(diào)節(jié)閥在全開(kāi)時(shí)壓降一般取與換熱器的壓降相同進(jìn)行計(jì)算。江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家</p><p style="text-indent:25px">選用要點(diǎn)：⒈ 電動(dòng)調(diào)節(jié)閥選用主要控制參數(shù)為：公稱(chēng)直徑、設(shè)計(jì)公稱(chēng)壓力、介質(zhì)允許溫度范圍、流量系數(shù)等。⒉ 對(duì)于要求流量和開(kāi)啟高度成正比例關(guān)系的嚴(yán)格場(chǎng)合，應(yīng)選用專(zhuān)門(mén)調(diào)節(jié)閥。球閥和蝶閥一般粗調(diào)時(shí)可以選用。⒊閥門(mén)的密封性能是考核閥門(mén)質(zhì)量?jī)?yōu)劣的主要指標(biāo)之一。3.閥門(mén)的密封性能主要包括兩個(gè)方面，即內(nèi)漏和外漏。內(nèi)漏是指閥座與關(guān)閉件之間對(duì)介質(zhì)達(dá)到的密封程度。外漏是指閥桿填料部位的泄露，中口墊片部位的泄露以及閥體因鑄造缺陷造成的泄露。外漏是不允許發(fā)生的。⒋ 調(diào)節(jié)閥理想流量特性有快開(kāi)、拋物線、線性、等百分比四種，需根據(jù)實(shí)際工作流量特性選擇具有合適流量特性的調(diào)節(jié)閥。江西電動(dòng)調(diào)節(jié)閥生產(chǎn)廠家</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/3171743.html</p></div></div></div></div></div><div id="ji7q9r8" class="page-right twoColRt"><div id="b8likc2" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3okrt2c" class="recomPic likePro"><a 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