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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>汕頭防火閥哪家專業(yè),防火閥</p><p><span>***更新：</span>2020-10-12 04:07:37</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="8w8elsj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">佛山文質(zhì)通風設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>馮達斌</p><p><span>郵箱: </span>751633122@qq.com</p><p><span>電話: </span>13679725711</p><p><span>傳真: </span>0757_</p><p><span>網(wǎng)址: </span>http://fswztf.1688.com</p><p><span>手機: </span>0757-85965668</p><p><span>地址: </span>大瀝鎮(zhèn)黃岐六聯(lián)鄉(xiāng)高力中村倉庫(自編)3號(住所申報)</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="rl8a7gq" class="page-proshow02"><p class="title">詳細說明</p><div id="3j43w3d" class="box"><p><p style="text-indent:25px">一種防火閥，包括閥體、若干轉(zhuǎn)動連接于閥體內(nèi)壁上的閥板和驅(qū)動所述閥板轉(zhuǎn)動的執(zhí)行部件，所述閥體垂直于閥板兩側(cè)的內(nèi)壁上均固定有抵觸于閥板側(cè)壁的密封板，所述密封板具有彈性，且在未受力時橫截面形狀為外凸的弧形；所述閥板沿長度方向的兩側(cè)的側(cè)壁上設(shè)置有定位部，所述密封板上設(shè)置有在閥板閉合狀態(tài)下，供定位部卡入的定位凹槽。由于密封板有彈性，且在未受力時為外凸的弧形；因而當閥板閉合時，能夠沿著密封板的弧形面，逐步抵壓在密封板增大密封板的形變量，因此閥板整體轉(zhuǎn)動過程較為流暢；而當閥板完全閉合后，閥板兩側(cè)抵壓在密封板上，密封板在自身彈性的作用下與閥板保持穩(wěn)密的貼合，從而提升了在閥板閉合后閥體側(cè)壁與閥板之間密封性；當閥板閉合后，汕頭防火閥哪家專業(yè)，汕頭防火閥哪家專業(yè)，閥板上的定位部卡入密封板上的定位凹槽內(nèi)；定位凸塊與定位凹槽的配合，汕頭防火閥哪家專業(yè)，對閥板有限位的作用，使得閥板在閉合后，位置處于穩(wěn)定。防火閥是用來阻斷來自火災區(qū)的煙氣及火焰經(jīng)過，并在一定時間內(nèi)能滿足耐火穩(wěn)定性和耐火完好性請求的閥門。汕頭防火閥哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭防火閥哪家專業(yè),防火閥" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363174380078125/6920437.png"></div><p style="text-indent:25px">至于排煙類閥門的自動復位功能，規(guī)范和消防認證要求只要具備復位功能即可，通常情況只要具備手動復位功能就可以滿足要求。因為排煙系統(tǒng)使用的概率非常小，就算使用也是其中少數(shù)幾個系統(tǒng)會啟動，為了不確定的其中幾個閥門就讓所有閥門都具備電動復位功能，顯然是沒有必要的，火災完根據(jù)動作信號手動復位即可，并沒有多大的工作量。當然如果預算足夠，規(guī)定所有的閥門均具備自動復位功能也未嘗不可，應(yīng)注意有遠距離復位功能的閥門，當通電動作后，應(yīng)具有顯示閥門葉片位置的信號輸出汕尾防火閥公司哪家好排煙口、排煙閥主要設(shè)置在排煙系統(tǒng)的管道上，或安裝在消防排煙風機的吸入口處，平時處于關(guān)閉狀態(tài)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭防火閥哪家專業(yè),防火閥" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363174394492188/7492810.png"></div><p style="text-indent:25px">熔斷器芯桿頂端卡住閥軸（葉片軸）上的叉板，使閥門處于常開狀態(tài)。當火警發(fā)生后，管道內(nèi)氣流溫度升到熔斷器易熔斷，溫度時，易熔片熔斷，芯桿即被彈簧推動，脫開叉板，閥軸受扭力彈簧作用轉(zhuǎn)動而關(guān)閉閥門。平時，如需調(diào)節(jié)風量大小，可通過與閥軸（葉片軸）聯(lián)動的手柄調(diào)節(jié)閥門開度，達到要求時由蝶母固定其位置。叉板與手柄接觸處制有環(huán)齒，防止嚙合后滑動，以保持閥門開度調(diào)定后不變?？筛鶕?jù)用戶要求增設(shè)關(guān)閉電信號輸出裝置（凸輪、微動開關(guān)、接線端子等）成為防火調(diào)節(jié)閥。</p><p style="text-indent:25px">安裝在通風、空調(diào)系統(tǒng)的送、回風管路上，平時呈開啟狀態(tài)，火災時當管道內(nèi)氣體溫度達到70℃時，易熔片熔斷，閥門在扭簧力作用下自動關(guān)閉，在一定時間內(nèi)能滿足耐火穩(wěn)定性和耐火完整性要求，起隔煙阻火作用的閥門。閥門關(guān)閉時，輸出關(guān)閉信號。防煙防火調(diào)節(jié)閥，常開，70度關(guān)閉，同1，不過多一個電訊號輸入，可由消控室遠程控制關(guān)閉，一般用于平時送風、火災補風共用風管系統(tǒng)中，火災時可控制關(guān)閉不需要補風的房間;常開型排煙防火閥，280度熔斷關(guān)閉，常開，輸出電訊號，這種和1相似，只是熔斷溫度不同，一般應(yīng)用于火災排煙管穿越防火墻處，煙氣溫度超過280度時自動熔斷關(guān)閉，可聯(lián)動關(guān)閉排煙風機。常開型排煙防火閥當管道溫度達到280℃時，熔斷器動作，閥門自動關(guān)閉。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭防火閥哪家專業(yè),防火閥" src="https://tyunfile.71360.com/UploadFile/wenzhitongfengshebei/637363174336738282/9361786.png"></div><p style="text-indent:25px">施工安裝可以防火閥可與通風機、排煙風機聯(lián)鎖。閥門的操作機構(gòu)一側(cè)應(yīng)有不小于200mm 的凈空間以利檢修。安裝閥門前必須檢查閥門的操作機構(gòu)是否完好，動作是否靈活有效。防火閥應(yīng)安裝在緊靠墻或樓板的風管管段中，防火分區(qū)隔墻兩側(cè)的防火閥距墻表面不應(yīng)大于200mm，防火閥兩側(cè)各2.0m范圍內(nèi)的管道及其絕熱材料應(yīng)采用不燃材料。防火閥應(yīng)單獨設(shè)支吊架，以防止發(fā)生火災時管道變形影響其性能。防火閥的熔斷片應(yīng)裝在朝向火災危險性較大的一側(cè)。防火閥是在調(diào)節(jié)的基礎(chǔ)上，增加感溫控制裝置。廣東防火閥生產(chǎn)廠商</p><p style="text-indent:25px">自動排煙防火閥：此類閥適用于設(shè)有感煙探測器自動報警控制和機械排煙的場所。汕頭防火閥哪家專業(yè)</p><p style="text-indent:25px">走道長，設(shè)置了機械排煙系統(tǒng)，每層樓只有一個防煙分區(qū)。每層的排煙主管上設(shè)計了一個電動的常閉的防火閥，每層的每個排煙口又設(shè)計一個電動的常閉的排煙閥，消防排煙風機的吸入口處也設(shè)計了一個電動的常閉的排煙防火閥。顯然，這種設(shè)計存在功能浪費，也是模塊、閥門、建筑成本的浪費。建議:方法之一是把排煙口的排煙閥和模塊取消，風口改成單層百葉;方法二是把每層的排煙主管上電動的常閉的防火閥改成常開的280度關(guān)閉的防火閥，控制模塊改為一般的監(jiān)視模塊。這兩種方法同樣能達到消防規(guī)范要求，并且實際控制起來也十分可靠。汕頭防火閥哪家專業(yè)</p><p style="text-indent:25px">佛山文質(zhì)通風設(shè)備有限公司主要經(jīng)營范圍是機械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。公司業(yè)務(wù)涵蓋3cf消防認證防火閥，鋁合金空調(diào)出風口，通風管道消聲器，消防風機等，價格合理，品質(zhì)有保證。公司秉持誠信為本的經(jīng)營理念，在機械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造機械及行業(yè)設(shè)備良好品牌。文質(zhì)通風憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1519520.html</p></div></div></div></div></div><div id="thewdpr" class="page-right twoColRt"><div id="ptq8j9w" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="h2smt3q" 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 id="jiph8h9" 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