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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>甘肅省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>靖遠(yuǎn)止回閥生產(chǎn)廠家,止回閥</p><p><span>***更新：</span>2021-02-05 06:11:28</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8lyz3zf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">甘肅誠禹惠物資有限公司</a></p><p><span>聯(lián)系人：</span>楊和平</p><p><span>郵箱: </span>349134533@qq.com</p><p><span>電話: </span>18294448288</p><p><span>傳真: </span>0931_</p><p><span>網(wǎng)址: </span>http://www.gscyhwz.com</p><p><span>手機(jī): </span>0931-7840458</p><p><span>地址: </span>北濱河西路1226之27號(hào)(立達(dá)建材城A區(qū)11棟104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="wua8dmz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="g73bxdp" class="box"><p><p> <span style="font-size:16px;">止回閥是指依靠介質(zhì)本身流動(dòng)而自動(dòng)開、閉閥瓣，用來防止介質(zhì)倒流的閥門，又稱逆止閥、單向閥、逆流閥、和背壓閥。止回閥屬于一種自動(dòng)閥門，其主要作用是防止介質(zhì)倒流、防止泵及驅(qū)動(dòng)電動(dòng)機(jī)反轉(zhuǎn)，以及容器介質(zhì)的泄放止回閥根據(jù)其結(jié)構(gòu)和安裝方式主要分為：升降式止回閥、旋啟式止回閥、蝶式止回閥、管道式止回閥和壓緊式止回閥。作為配管專業(yè)當(dāng)然就是要考慮止回閥的安裝方式</span><span style="font-size:16px;">了。止回閥的安裝要求：1.升降式止回閥，閥瓣是沿著閥體垂直中心線滑動(dòng)的止回閥，靖遠(yuǎn)止回閥生產(chǎn)廠家，閥門型號(hào)是H41——，升降式止回閥只能安裝在水平管道上。2.旋啟式止回閥，閥瓣是圍繞閥座外的銷軸旋轉(zhuǎn)的止回閥，閥門型號(hào)是H44——，水平和垂直管道都可以，只是安裝方向有要求。不過比較好還是水平安裝，當(dāng)然對(duì)于介質(zhì)流動(dòng)方向?yàn)閺南碌缴系?，也可以垂直安裝。3.碟式止回閥，閥瓣圍繞閥座內(nèi)的銷軸旋轉(zhuǎn)，閥門型號(hào)是H45——，碟式止只能安裝在水平管道上，靖遠(yuǎn)止回閥生產(chǎn)廠家。4.管道式止回閥，靖遠(yuǎn)止回閥生產(chǎn)廠家，它的閥瓣是沿著閥體中心線滑動(dòng)的閥門，水平和垂直方向都可以，但是也是需要注意安裝方向的。5.壓緊式止回閥：一般是鍋爐給水和蒸汽切斷用閥，它具有升降式止回閥和截止閥或角閥的綜合機(jī)能，也是需要水平安裝。</span> 蝶式止回閥結(jié)構(gòu)簡單，對(duì)流體的阻力小。靖遠(yuǎn)止回閥生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠(yuǎn)止回閥生產(chǎn)廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024300068359/4895710.png"></div><p> <span style="font-size:16px;">"止回閥"的選型1為了防止介質(zhì)逆流，在設(shè)備、裝置和管道上都應(yīng)安裝止回閥；2止回閥一般適用于清凈介質(zhì)，不宜用于含有固體顆粒和粘度較大的介質(zhì)；3一般在公稱通經(jīng)50mm的水平管道上都應(yīng)選用立式升降止回閥；4直通式升降止回閥在水平管道和垂直管道上都可安裝；5對(duì)于水泵進(jìn)口管路，宜選用底閥，底閥一般只安裝在泵進(jìn)口的垂直管道上，并且介質(zhì)自下而上流動(dòng)；6升降式旋啟式密封性好，流體阻力大，臥式宜裝在水平管道上，立式裝在垂直管道上；7旋啟式止回閥的安裝位置不受限制，它可裝在水平、垂直或傾斜的管線上，如裝在垂直管道上，介質(zhì)流向要由下而上；旋啟式止回閥不宜制成小口徑閥門、可以做成很高的工作壓力，PN可達(dá)到42MPa，而且DN也可以做到很大，比較大可以達(dá)到2000mm以上。根據(jù)殼體及密封件的材質(zhì)不同可以適用任何工作介質(zhì)和任何工作溫度范圍。介質(zhì)為水、蒸汽、氣體、腐蝕性介質(zhì)、油品、藥品、等。介質(zhì)工作溫度范圍在-196--800℃之間。</span> 靖遠(yuǎn)止回閥生產(chǎn)廠家升降式止回閥為高壓小口徑，常采用圓球形閥瓣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠(yuǎn)止回閥生產(chǎn)廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024375351562/9522742.png"></div><p> <span style="font-size:16px;">止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和直通式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥分為蝶式雙瓣、蝶式單瓣。以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接、焊接和對(duì)夾式連接四種。安裝位置安裝止回閥是為了保證水泵內(nèi)部水流的流向，從而保障水泵的正常工作。所以關(guān)于止回閥的安裝位置，到底是安裝在水泵前還是水泵后，可以分兩種情況：1安裝在水泵前豎吸管端頭也叫底閥，目的是為了不用抽一次水向水泵充一次水，因?yàn)樗脙?nèi)以及泵前的吸管內(nèi)無水時(shí)水泵只能空轉(zhuǎn)抽不上水，所以水泵內(nèi)必須充滿水才能抽出水。這種水泵的安裝是高于液面時(shí)的一種方法，也叫負(fù)壓法。</span> </p><p> <span style="font-size:16px;">止回閥又叫逆止閥，是一種自動(dòng)閥門，它依靠管道內(nèi)流動(dòng)介質(zhì)的壓力推動(dòng)閥瓣，來實(shí)現(xiàn)閥門的關(guān)閉和開啟，當(dāng)介質(zhì)停止流動(dòng)，止回閥閥瓣關(guān)閉，它能有效防止管道內(nèi)介質(zhì)發(fā)生倒流，這對(duì)于保障管道的安全起到了很大的作用。一種是安裝在水泵前豎吸管端頭，也叫底閥。目的是為了不用抽一次水向水泵充一次水，因?yàn)樗脙?nèi)以及泵前的吸管內(nèi)無水時(shí)水泵只能空轉(zhuǎn)抽不上水，所以水泵內(nèi)必須充滿水才能抽出水。這種水泵的安裝是高于液面時(shí)的一種方法，也叫負(fù)壓法。另一種是安裝在水泵的后方。這種安裝方法是液面高于水泵的情況下，方便啟停水泵時(shí)不用關(guān)水泵出水閥，特別是對(duì)于母管制水泵系統(tǒng)，防止發(fā)生倒流的情況。止回閥必須安裝在泵的出口、出口控制閥之前的位置，以便檢修止回閥。一般泵的出口道是</span><span style="font-size:16px;">軟連接（減震器），接下來是止回閥，再接下來是隔斷閥。</span> 止回閥閥瓣關(guān)閉，它能有效防止管道內(nèi)介質(zhì)發(fā)生倒流。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="靖遠(yuǎn)止回閥生產(chǎn)廠家,止回閥" src="https://tyunfile.71360.com/UploadFile/gscyhwz/637318024476875000/9919477.png"></div><p> <span style="font-size:16px;">隨著我國社會(huì)經(jīng)濟(jì)建設(shè)的快速發(fā)展，人們的生活質(zhì)量不斷提高，對(duì)居住區(qū)周邊的環(huán)境也越來越重視，噪聲污染就是影響環(huán)境的重要來源之一。噪聲污染是繼大氣污染和水污染之后的第三大污染來源，其中建筑內(nèi)部的噪聲為嚴(yán)重。建筑內(nèi)部噪聲來源分為兩種，一種是常用的家用電器，比如電視、空調(diào)等，另外一種來自建筑給水排水系統(tǒng)產(chǎn)生的噪聲。由于建筑施工、給水管道、排水管道和水泵自身的機(jī)械振動(dòng)等原因，室內(nèi)的噪聲環(huán)境愈加嚴(yán)重。根據(jù)《民用建筑隔聲設(shè)計(jì)規(guī)范》(GBJ118-88)規(guī)定：夜間臥室噪聲不得超過30db，比較高不得超過40db。但給水排水系統(tǒng)所產(chǎn)生的噪聲遠(yuǎn)遠(yuǎn)超過規(guī)范標(biāo)準(zhǔn)，嚴(yán)重影響到建筑內(nèi)部和周邊居民的休息質(zhì)量，嚴(yán)重情況下可能導(dǎo)致人們產(chǎn)生神經(jīng)衰弱癥。因此，如何控制建筑給水排水系統(tǒng)噪聲成為</span><span style="font-size:16px;">了技術(shù)人員急需解決的問題。</span> 受結(jié)構(gòu)限制，不宜用于DN40及以下的管道上;靖遠(yuǎn)止回閥生產(chǎn)廠家</p><p style="text-indent:25px">蝶式止回閥分為蝶式雙瓣、蝶式單瓣。靖遠(yuǎn)止回閥生產(chǎn)廠家</p><p> <span style="font-size:16px;">對(duì)于可壓縮性流體用止回閥選擇時(shí)可以根據(jù)不可壓縮性流體用止回閥的類似方法來進(jìn)行選擇，如果介質(zhì)流動(dòng)范疇很大，則用于可壓縮性流體的止回閥可使用一減速裝置，如果介質(zhì)流連續(xù)不段地快速停止和啟動(dòng)，如壓縮機(jī)的出口那樣，則使用升降式止回閥；16止回閥應(yīng)確定響應(yīng)的尺寸，閥門供應(yīng)商必須提供選定尺寸的資料數(shù)據(jù)，這樣就能找到給定流速下閥門全開時(shí)的閥門尺寸大小；主閥用于機(jī)車本身的制動(dòng)、保壓與緩解作用。主要由大膜板活塞、小膜板活塞、空心閥桿及供氣閥等部件組成。主閥屬于三壓力機(jī)構(gòu)閥，大膜板活塞上方是列車管壓力，下方是工作風(fēng)缸壓力，小膜板活塞上方是作用風(fēng)缸壓力，小膜板活塞下方通大氣，主閥各運(yùn)動(dòng)部件是受這三者壓力差的控制而產(chǎn)生聯(lián)動(dòng)的?？傦L(fēng)通供氣閥室，在制動(dòng)時(shí)向作用風(fēng)缸充氣。兩個(gè)膜板活塞的有效面積比是。根據(jù)列車管的壓力變化，主閥有三個(gè)作用位置。</span> 靖遠(yuǎn)止回閥生產(chǎn)廠家</p><p style="text-indent:25px">甘肅誠禹惠物資有限公司主要經(jīng)營范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司業(yè)務(wù)涵蓋誠禹惠閥門，球閥批發(fā)，閥門批發(fā)，蝶閥批發(fā)等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3169948.html</p></div></div></div></div></div><div id="bctkbsi" class="page-right twoColRt"><div id="gz2ipgx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qyu8ir8" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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