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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="m3lnouw" class="twoCol"><div id="lumqwiu" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_famenti/">閥門(mén)</a>?<a href="http://www.cdcfah.com/cp/third-famenti_diaojiefavb/">調(diào)節(jié)閥</a>?濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富服務(wù)至上銳銓供</p><div id="nw7oqho" class="leftbox clearfix"><h1>濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富服務(wù)至上銳銓供</h1><div id="3wmjlnz" class="proBig"><div id="o3wo2a2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637272058842939454/9084637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bfmtlx2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637272058842939454/9084637.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="os2jgi3" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富,閥芯</p><p><span>***更新：</span>2020-12-04 02:00:58</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="m2a7d4p" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海銳銓機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>李恬</p><p><span>郵箱: </span>roltran@163.com</p><p><span>電話: </span>13918994917</p><p><span>傳真: </span>021_61492341</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-61492341</p><p><span>地址: </span>環(huán)林東路799弄9號(hào)1層B142室</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="povseln" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8ifhjq8" class="box"><p><p> 1.普通單向bai閥普通單向閥的作用，是使油液只du能沿一個(gè)方向流動(dòng)，不許它反向zhi倒流dao。圖（a）所示是一種管式普通單向閥的結(jié)構(gòu)。壓力油從閥體左端的通口P1流入時(shí)，克服彈簧3作用在閥芯2上的力，使閥芯向右移動(dòng)，打開(kāi)閥口，并通過(guò)閥芯2上的徑向孔a、軸向孔b從閥體右端的通口流出。但是壓力油從閥體右端的通口P2流入時(shí)，它和彈簧力一起使閥芯錐面壓緊在閥座上，使閥口關(guān)閉，油液無(wú)法通過(guò)，濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富。圖（b）所示是單向閥的職能符號(hào)圖。單向閥1—閥體2—閥芯3—彈簧2.液控單向閥液控單向閥(a)結(jié)構(gòu)圖(b)職能符號(hào)圖1—活塞2—頂桿3—閥芯液控單向閥有一個(gè)控油口“K”,當(dāng)控制口不通壓力油時(shí)，此閥的作用與單向閥相同，壓力油只能單向流動(dòng)；當(dāng)控油口通壓力油且作用在控制活塞上的液壓力足以克服提動(dòng)頭（錐閥）上的彈簧力，P2腔的油壓作用于提動(dòng)頭（錐閥）上的液壓力以及P1腔的壓力油作用于控制活塞背面的液壓力之和時(shí)，控制活塞通過(guò)活塞桿使提動(dòng)頭（錐閥）抬起，閥將保持開(kāi)啟狀態(tài)，液流雙向都能通過(guò)。液控單向閥具有良好的單密封性能，濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富，常用于執(zhí)行元件需要長(zhǎng)時(shí)間保壓，濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富，鎖緊的情況！也用于防止立式液壓缸停止時(shí)在自重作用下下滑等。英格索蘭Ingersoll Rand閥芯1565VW4/4-150。濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富,閥芯" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637272058842939454/9084637.png"></div><p> 球閥只需要用旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動(dòng)力矩就能關(guān)閉嚴(yán)密。完全平等的閥體內(nèi)腔為介質(zhì)提供了阻力很小、直通的流道。通常認(rèn)為球閥**適宜直接做開(kāi)閉使用，但近來(lái)的發(fā)展已將球閥設(shè)計(jì)成使它具有節(jié)流和控制流量之用。球閥的主要特點(diǎn)是本身結(jié)構(gòu)緊湊，易于操作和維修，適用于水、溶劑、酸和天然氣等一般工作介質(zhì)，而且還適用于工作條件惡劣的介質(zhì)，如氧氣、過(guò)氧化氫、甲烷和乙烯等。球閥閥體可以是整體的，也可以是組合式的。球閥的工作原理和作用球閥的工作原理是靠旋轉(zhuǎn)閥芯來(lái)使閥門(mén)暢通或閉塞。球閥開(kāi)關(guān)輕便，體積小，可以做成很大口徑，密封可靠，結(jié)構(gòu)簡(jiǎn)單，維修方便，密封面與球面常在閉合狀態(tài)，不易被介質(zhì)沖蝕，在各行業(yè)得到普遍的應(yīng)用。球閥和旋塞閥是同屬一個(gè)類型的閥門(mén)，只有它的關(guān)閉件是個(gè)球體，球體繞閥體中心線作旋轉(zhuǎn)來(lái)達(dá)到開(kāi)啟、關(guān)閉的一種閥門(mén)。球閥在管路中主要用來(lái)做切斷、分配和改變介質(zhì)的流動(dòng)方向。球閥是近年來(lái)被普遍采用的一種新型閥門(mén)，它具有以下優(yōu)點(diǎn)：1、流體阻力小，其阻力系數(shù)與同長(zhǎng)度的管段相等。2、結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。3、緊密可靠，目前球閥的密封面材料普遍使用塑料、密封性好，在真空系統(tǒng)中也已普遍使用。4、操作方便，開(kāi)閉迅速。通用電氣機(jī)車(chē)GE TRANSPORTATION閥芯價(jià)格合理英格索蘭 Ingersoll Rand 閥芯 5435X170。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富,閥芯" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637269469040234375/7528626.png"></div><p> 調(diào)節(jié)閥的安裝位置要考慮人員操作的方便性。耐磨管道操作人員要能看到指示器的顯示數(shù)據(jù)，能看到儲(chǔ)罐的玻璃液位計(jì)，并能手動(dòng)調(diào)節(jié)液位，能看到管道的壓力表或閥桿的位移刻度，能用某些參數(shù)指示器來(lái)預(yù)估參數(shù)變化等。除此之外，還必須考慮到調(diào)節(jié)閥在現(xiàn)場(chǎng)維修和日常拆卸的可能性，維修費(fèi)用的高低在很大程度上取決于人員接近調(diào)節(jié)閥的方便程度。尤其是安裝位置高的調(diào)節(jié)閥，更應(yīng)該考慮這一點(diǎn)。當(dāng)然，方便操作固然重要，但也要考慮到日后維護(hù)的可能性。1)如果需要拆卸帶有閥桿和閥芯的頂部組件，調(diào)節(jié)閥的上方應(yīng)留有足夠的空間;如果需要拆卸底部法蘭和閥桿、閥芯的部件，調(diào)節(jié)閥的底部應(yīng)留有一定的空間;如果需要拆卸調(diào)節(jié)閥附件，如手輪、閥門(mén)定位器、保位閥等，調(diào)節(jié)閥的側(cè)面應(yīng)留有相應(yīng)的空間。根據(jù)經(jīng)驗(yàn)，拆卸用的空間，通常調(diào)節(jié)閥頂部與上方障礙物之間較小距離為450mm，調(diào)節(jié)閥底部與下方障礙物之間較小較距離為500mm，側(cè)面較小距離為350mm。2)為了拆卸閥體法蘭上的螺栓，在設(shè)計(jì)用大小頭連接調(diào)節(jié)閥入口和出口配管時(shí)必須考慮這一間隙尺寸。比如大口徑調(diào)節(jié)閥，或者是安裝在高空的調(diào)節(jié)閥，否則，維修時(shí)拆卸調(diào)節(jié)閥將非常困難。 </p><p> 調(diào)節(jié)閥正常運(yùn)行后要進(jìn)行維護(hù)和保養(yǎng)。調(diào)節(jié)閥作為自動(dòng)化控制系統(tǒng)的一部分，其維護(hù)應(yīng)與自動(dòng)化儀表和其他設(shè)備同時(shí)進(jìn)行。調(diào)節(jié)閥的維護(hù)與一般儀表的維護(hù)類似，可分為被動(dòng)性維護(hù)、預(yù)防性維護(hù)和預(yù)見(jiàn)性維護(hù)。被動(dòng)性維護(hù)是當(dāng)調(diào)節(jié)閥等設(shè)備出現(xiàn)故障時(shí)才進(jìn)行維護(hù)的一種維護(hù)方法。由于設(shè)備發(fā)生故障才維護(hù)，因此常常造成生產(chǎn)過(guò)程停車(chē)，嚴(yán)重時(shí)甚至出現(xiàn)設(shè)備損壞或人員傷亡等。被動(dòng)性維護(hù)是生產(chǎn)過(guò)程所不希望的維護(hù)，預(yù)防性維護(hù)是根據(jù)過(guò)去的運(yùn)行經(jīng)驗(yàn)，按時(shí)間進(jìn)行維護(hù)的一種維護(hù)方法。例如，常用的定期維護(hù)就是預(yù)防性維護(hù)，它根據(jù)不同設(shè)備的運(yùn)行情況制定相應(yīng)的維護(hù)時(shí)間表，在設(shè)備還沒(méi)有出現(xiàn)故障時(shí)就進(jìn)行維護(hù)。由于故障沒(méi)有發(fā)生就進(jìn)行維護(hù)，因此，可**降低故障發(fā)生概率。但這種維護(hù)方法并沒(méi)有將當(dāng)前使用的該調(diào)節(jié)閥實(shí)際情況進(jìn)行分析，常常對(duì)還可以使用一定時(shí)間的調(diào)節(jié)閥進(jìn)行拆裝和檢查，浪費(fèi)了時(shí)間和資源。預(yù)見(jiàn)性維護(hù)從當(dāng)前使用的調(diào)節(jié)閥數(shù)據(jù)分析出發(fā)，預(yù)見(jiàn)該調(diào)節(jié)閥的狀態(tài)，從而使調(diào)節(jié)閥得到較大限度的利用。一、調(diào)節(jié)閥日常維護(hù)工作內(nèi)容調(diào)節(jié)閥日常維護(hù)工作內(nèi)容分為巡回檢查和定期維護(hù)兩部分，巡回檢查工作內(nèi)容如下。1.向當(dāng)班工藝操作人員了解調(diào)節(jié)閥的運(yùn)行情況。2.查看調(diào)節(jié)閥和有關(guān)附件的供給能源。壽力溫控閥芯2050W8/4-180。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富,閥芯" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637272067257509766/7173422.png"></div><p> 4)執(zhí)行機(jī)構(gòu)的安裝通常，執(zhí)行機(jī)構(gòu)與調(diào)節(jié)閥閥體直接連接，但液動(dòng)執(zhí)行機(jī)構(gòu)、長(zhǎng)行程執(zhí)行機(jī)構(gòu)等與調(diào)節(jié)閥閥體分開(kāi)時(shí)，安裝執(zhí)行機(jī)構(gòu)時(shí)應(yīng)注意執(zhí)行機(jī)構(gòu)的連桿和機(jī)械活動(dòng)部件應(yīng)靈活，無(wú)松動(dòng)或卡扭等現(xiàn)象;連桿長(zhǎng)度合適，保證在全行程范圍內(nèi)動(dòng)作穩(wěn)定、靈活可*;手輪執(zhí)行機(jī)構(gòu)有側(cè)裝和頂裝兩種，安裝時(shí)應(yīng)留有操作空間，手輪操作應(yīng)靈活，沒(méi)有卡死或扭轉(zhuǎn)現(xiàn)象，有手輪轉(zhuǎn)動(dòng)方向與閥開(kāi)度關(guān)系的標(biāo)注，限位裝置應(yīng)調(diào)整合適，起到保護(hù)作用;液動(dòng)執(zhí)行機(jī)構(gòu)應(yīng)低于控制器安裝，如果必須高于控制器安裝時(shí)，其高度差應(yīng)不超過(guò)，并且應(yīng)在管路集氣處安裝排氣閥，*近控制器處安裝自動(dòng)切斷閥。5)閥門(mén)定位器的安裝閥門(mén)定位器的閥位檢測(cè)裝置與調(diào)節(jié)閥閥桿或閥軸直接連接，因此，安裝時(shí)應(yīng)保證反饋信號(hào)能夠正確、及時(shí)地反映閥位信號(hào)和變化。通常，閥門(mén)定位器與調(diào)節(jié)閥配套供應(yīng)，由制造廠完成兩者的連接。當(dāng)生產(chǎn)過(guò)程控制需要添加閥門(mén)定位器時(shí)，壓力表緩沖管應(yīng)保證閥門(mén)定位器閥位檢測(cè)裝置動(dòng)作的正確、可*和靈活，反饋桿支點(diǎn)的機(jī)械間隙應(yīng)盡量小，閥門(mén)定位器的信號(hào)管線應(yīng)正確連接，氣源管線和輸出管線、輸入管線應(yīng)標(biāo)記;閥門(mén)定位器的閥位顯示信號(hào)應(yīng)有利于操作和維護(hù)人員觀測(cè)。 FUSHENG溫控閥芯 1125X180。通用電氣機(jī)車(chē)GE TRANSPORTATION閥芯價(jià)格合理</p><p style="text-indent:25px">壽力溫控閥芯 02250144-872 原裝進(jìn)口。濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富</p><p> 熱流出口的高溫氣流直接作用在閥芯上，閥芯在約1400℃高溫、酸性介質(zhì)腐蝕及高溫氣流沖刷的共同作用下，很快就被燒損甚至熔毀報(bào)廢，致使高溫?fù)胶祥y無(wú)法正常使用，這也成為裝置安全長(zhǎng)周期運(yùn)行的一個(gè)重大***。2、高溫?fù)胶祥y閥芯的改進(jìn)、方案Ⅰ/1Cr25Ni20Si2閥芯表面噴氧化鋯在原1Cr25Ni20Si2拋物線型閥芯(見(jiàn)圖2)表面噴一層氧化鋯。氧化鋯是一種很好的高溫耐磨陶瓷材料，具有強(qiáng)度高、硬度高和韌性佳，空氣中穩(wěn)定使用**高溫度可達(dá)1800℃。我們?cè)谥惺G門(mén)分公司硫磺回收裝置上進(jìn)行試驗(yàn)，在高溫?fù)胶祥y投用約4個(gè)月后出現(xiàn)了氧化鋯剝落和閥芯被熔化的現(xiàn)象。通過(guò)分析其原因主要是：1Cr25Ni20Si2和氧化鋯之間的熱膨脹系數(shù)不一致，閥芯基體膨脹量大，可引起表面材料開(kāi)裂，加之閥芯基體和表面材料之間結(jié)合不緊密而導(dǎo)致表面氧化鋯層剝落，氧化鋯層剝落的閥芯直接作用在高溫氣流之下，**終被熔毀。圖21Cr25Ni20Si2拋物線型閥芯、方案Ⅱ/1Cr25Ni20Si2加TA-218閥芯1Cr25Ni20Si2+(TA-218)閥芯目前使用**為***，閥芯基體采用1Cr25Ni20Si2材質(zhì)，閥芯表面襯有20mm厚TA-218耐磨襯里，該襯里和閥芯之間用掛片連接與固定。掛片為半圓環(huán)型或拋物線型，沖有舌形孔，數(shù)量為6～8件。濰柴WEICHAI閥芯經(jīng)驗(yàn)豐富</p><p 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