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13:22:49</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="pikcjqs" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海派力防爆科技有限公司</a></p><p><span>聯(lián)系人：</span>張軍克</p><p><span>郵箱: </span>junkezhang88@163.com</p><p><span>電話: </span>15000234576</p><p><span>傳真: </span>0577_</p><p><span>網(wǎng)址: </span>http://www.palex.com.cn</p><p><span>手機: </span>0577-57769997</p><p><span>地址: </span>老港鎮(zhèn)老蘆公路536號</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="yhegd7j" class="page-proshow02"><p class="title">詳細說明</p><div id="wfmtq7i" class="box"><p><p style="text-indent:25px">緊急切斷閥電控的工作原理：本閥氣源入口按裝一只二位三通電磁閥，利用遠程電器控制臺控制閥門開關(guān)。燃氣泄漏報警器報警通電,電磁閥通電排氣,閥門自動關(guān)閉.手動控制電磁閥(按下紅色卡子)排氣,閥門自動關(guān)閉.閥門在無外壓力操作情況下，河南防爆緊急切斷閥批發(fā)哪家好，閥瓣處于常閉狀態(tài)，在貯罐系統(tǒng)上使用時，緊急切斷閥與油泵或貯氣瓶配套使用，靠手搖油或氨氣的壓力將閥門打開，在油路或者氣的壓力使用下閥門處于開啟狀態(tài)，當(dāng)需要關(guān)閉閥門或遇到有緊急情況時，可將油壓或者氨氣壓力泄掉，河南防爆緊急切斷閥批發(fā)哪家好，閥門即自動關(guān)閉。閥瓣關(guān)閉時，壓力是依靠打開泄壓閥或操作手輪或者管路上的易熔塞在溫度升高時自行熔化來實現(xiàn)。閥門工作介質(zhì)的流動方向應(yīng)是高進低出，河南防爆緊急切斷閥批發(fā)哪家好，與普通截止閥流向正好下反。閥門法蘭的連接尺寸按JB/T79.1-94《凸面整體鑄鋼法蘭》或HG20592-97尺寸標準。氣密性是決定閥門關(guān)閉后截流能力的大小。河南防爆緊急切斷閥批發(fā)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防爆緊急切斷閥批發(fā)哪家好,防爆緊急切斷閥" src="https://tyunfile.71360.com/UploadFile/shplfb/637368287299384766/1896510.png"></div><p style="text-indent:25px">遇熱燃氣緊急切斷閥。其使用時可以很方便地串接在燃氣管道，如管道煤氣、天然氣氣路上或液化氣鋼瓶上的出氣閥和減壓閥之間。本閥采用雙金屬片作為檢測測溫度變化的元件。但是雙金屬片形變產(chǎn)生的熱推力是不能直接將具有一定壓力的閥關(guān)斷的。另外，雙金屬片產(chǎn)生的形變很小，也遠遠不能適應(yīng)閥芯的移動行程。本遇熱燃氣緊急切斷閥結(jié)構(gòu)設(shè)計巧妙地解決了這個難題。利用雙金屬片制成的溫控片遇熱形變的微小變化，通過觸發(fā)機構(gòu)觸發(fā)彈簧力驅(qū)動閥芯。故能在當(dāng)環(huán)境溫度或者管道內(nèi)氣體溫度達到設(shè)定的警戒溫度時，自動切斷燃氣，從而有效地避免或減少了災(zāi)害和損失。另外，該安全閥不用電，體積小巧，結(jié)構(gòu)簡單、安全可靠。河南防爆緊急切斷閥批發(fā)哪家好電磁式燃氣緊急切斷閥很少用于高壓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防爆緊急切斷閥批發(fā)哪家好,防爆緊急切斷閥" src="https://tyunfile.71360.com/UploadFile/shplfb/637368287182500000/4018987.png"></div><p style="text-indent:25px">電動防爆緊急切斷閥主要特點：閥門采用防靜電、防火等安全措施。電動執(zhí)行器配有手輪裝置可以在現(xiàn)場關(guān)閉閥門當(dāng)無故斷電時閥門自行關(guān)閉無需人員到現(xiàn)場去關(guān)閉閥門，防爆電動緊急切斷閥可通過PLC遠程控制和就地控制來切換。當(dāng)事故排除通電后無需工作人員去操作，閥門自行打開跟之前關(guān)閉的位置。關(guān)閉時，順時針旋轉(zhuǎn)手輪，閥桿開始下降并使球體離開閥座開始旋轉(zhuǎn)。繼續(xù)旋轉(zhuǎn)手輪，閥桿受到嵌于其上螺旋槽內(nèi)的導(dǎo)銷的作用，使閥桿和球體同時旋轉(zhuǎn)90°。快要關(guān)閉時，球體已在與閥座無接觸的情況下旋轉(zhuǎn)了90°。手輪轉(zhuǎn)動的后面幾圈，閥桿底部的角形平面機械地楔向壓迫球體，使其緊密地壓在閥座上，達到完全密封。</p><p style="text-indent:25px">隨著國民經(jīng)濟的持續(xù)發(fā)展,本市到處可見外形美觀、風(fēng)格迥異的高層、超高層建筑。在這些建筑物內(nèi),設(shè)計師和建設(shè)者為了提高有效益的使用面積,往往采取將食堂或餐廳等放在地下室的辦法。此外,隨著我國城市煤氣事業(yè)的蓬勃發(fā)展,煤氣的供應(yīng)能力**提高,這就使得大樓中央空調(diào)采用煤氣直燃式冷暖機組成為現(xiàn)實,而該空調(diào)機組也大多置于地下室。尤其在地下室,若遇煤氣泄漏,則由于建筑上和通風(fēng)上的限制,而更有其危害性。然而,如果設(shè)置一套煤氣泄漏緊急自動切斷系統(tǒng),則遇到各種原因引起煤氣泄漏時,可以及時關(guān)閉煤氣切斷閥,防止因煤氣泄漏而引起的各種事故。煤氣探頭探頭不但設(shè)置在灶具前,也應(yīng)設(shè)置在煤氣管道的經(jīng)過處。這樣,不但灶具上的煤氣漏泄可以探測到,而且煤氣管道經(jīng)過處煤氣的漏泄也可探測到。從而可保證整個系統(tǒng)的安全。探頭有多種型式,可選用適宜于城市煤氣的型式。氣緊急切斷閥是常開型脈沖觸發(fā)式型電磁閥，具有事故自鎖及手動復(fù)位功能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南防爆緊急切斷閥批發(fā)哪家好,防爆緊急切斷閥" src="https://tyunfile.71360.com/UploadFile/shplfb/637368287339453125/3026081.png"></div><p style="text-indent:25px">在選用切斷閥時，需要注意以下幾個關(guān)鍵參數(shù)：觸發(fā)機構(gòu)是決定閥門工作穩(wěn)定性的主要因素，氣密性是決定閥門關(guān)閉后截流能力的大小，合格的切斷閥應(yīng)能夠確保閥門關(guān)閉后無泄漏；流通量是指閥門全開時的流通能力，應(yīng)盡量選用閥口的流通面積大于或等于公稱通徑的產(chǎn)品。切斷時間是指從閥門關(guān)閉信號發(fā)出到閥門關(guān)閉的時間，應(yīng)盡量選用切斷時間小于或等于1s的產(chǎn)品。密封材料和殼體材料：閥門可使用的密封材料和殼體材料多種多樣，使用者可根據(jù)氣質(zhì)種類和使用壓力進行選擇。燃氣緊急切斷閥與熱力設(shè)備的極限溫度(或壓力)安全控制器相連接。河南防爆緊急切斷閥批發(fā)哪家好</p><p style="text-indent:25px">緊急切斷閥又叫做安全切斷閥。河南防爆緊急切斷閥批發(fā)哪家好</p><p style="text-indent:25px"> 緊急切斷閥做為承壓罐車的安全附件之一，在罐車的安全運行與充裝過程中發(fā)揮著至關(guān)重要的作用。一旦緊急切斷閥失靈、泄漏或者因為操作不當(dāng)，那么罐體內(nèi)有毒有害、易燃易爆的介質(zhì)很有可能引發(fā)一場大災(zāi)難。所以，作業(yè)人員應(yīng)該掌握正確使用緊急切斷閥的方法，熟悉緊急切斷閥的性能，并且能夠辨別和排除常見技術(shù)故障，這樣，才能較大化的保證公共和自身的安全。緊急切斷閥的功能目前液化氣體承壓罐車在用緊急切斷閥有機械式（手拉）和液壓式兩種，機械式是通過手拉鋼絲拉索聯(lián)接的限位手柄帶動杠桿，聯(lián)動內(nèi)部凸輪后開啟緊急切斷閥進行裝卸作業(yè)。裝卸完畢后，松開手拉的限位手柄，緊急切斷閥可在5秒內(nèi)關(guān)閉。河南防爆緊急切斷閥批發(fā)哪家好</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2947286.html</p></div></div></div></div></div><div id="2dkh2yq" class="page-right twoColRt"><div id="yn2jqxj" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x8782lx" 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配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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