亚洲国产天堂久久综合网_離心風(fēng)機是根據動(dòng)能轉換為勢能的原理_新聞中心_合肥泰諾環(huán)?？萍加邢薰?/title> <meta name="keywords" content=""> <meta name="description" content=""> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/bootstrap.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/swiper.min.css"> <link rel="stylesheet" href="http://static.0551seo.cn/base/bootstarp-icon.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/animate.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/normalize.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/reset.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/index1.min.css"> <link type="text/css" rel="stylesheet" href="http://static.0551seo.cn/template/fifteen/css/index2.min.css"> <meta 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對于比較高靜壓的需求，使用離心風(fēng)機是一個(gè)正確的選擇，它適用于長(cháng)壁工作面。美國長(cháng)壁工作面的長(cháng)度和走向尺寸增加到特別大的程度。甚至風(fēng)流也通過(guò)采用大冒落采法的采空區。當然，采空區有一個(gè)高的摩擦系數。美國煤礦礦井主風(fēng)機主要是軸流式風(fēng)機，為滿(mǎn)足通風(fēng)需要，必須產(chǎn)生非常高的靜壓力。一些煤礦礦井主風(fēng)機主要是軸流式風(fēng)機，為滿(mǎn)足通風(fēng)需要，必須產(chǎn)生非常高的靜壓力。一些煤礦試用高速軸流式風(fēng)機。實(shí)踐顯示軸流式風(fēng)機噪音大，不穩定；最普遍出現的故障是風(fēng)機扇葉和軸承損壞。盡管出現這些問(wèn)題，從工作面和采空區釋放出的甲烷氣體都必須排出。因為很遠的通風(fēng)距離和有限的靜壓力，很明顯這是礦井主風(fēng)機艱難的任務(wù)。</span></div> <div style="text-align: justify; line-height: 2;"><span style="font-size: 16px;"> 離心風(fēng)機是根據動(dòng)能轉換為勢能的原理,利用高速旋轉的葉輪將氣體加速,然后減速、改變流向，使動(dòng)能轉換成勢能。在單級離心風(fēng)機中，氣體從軸向進(jìn)入葉輪，氣體流經(jīng)葉輪時(shí)改變成輕向，然后進(jìn)入擴壓器。在擴壓器中，氣體改變了流動(dòng)方向造成減速，這種減速作用將動(dòng)能轉換成壓力能。壓力增高主要發(fā)生在葉輪中，其次發(fā)生在擴壓過(guò)程。在多級離心風(fēng)機中，用回流器使氣流進(jìn)入下一葉輪，產(chǎn)生更高壓力。我們的離心風(fēng)機在設計理論上，設計方法上都比較落后，產(chǎn)品開(kāi)發(fā)很多都是采用仿制和類(lèi)比的方法，嚴重缺乏理論根據和實(shí)驗研究數據，加工裝備和工藝水平也比較落后，加工精度低、生產(chǎn)效率低，產(chǎn)品系列化和通用化程度不高，規格品種少，泵效率、質(zhì)量和可靠性、密封性能、耐腐蝕性能等方面還有非常大的差距。</span></div> <div style="text-align: justify; line-height: 2;"><span style="font-size: 16px;"> 我國離心風(fēng)機行業(yè)發(fā)展潛力巨大，企業(yè)在生產(chǎn)與產(chǎn)品設計技術(shù)層面不斷進(jìn)步，近年來(lái)也更大步邁進(jìn)自動(dòng)化以增加效益和競爭力，但在面臨機遇的同時(shí)也伴隨著(zhù)很大的挑戰，現在基建、廠(chǎng)礦、住宅等各個(gè)領(lǐng)域都向風(fēng)機行業(yè)提出更高要求，如現在大型基建項目風(fēng)機較少用國產(chǎn)設備。面對這樣的局面，我國的風(fēng)機行業(yè)應該冷靜、沉著(zhù)、積極應對，最大限度滿(mǎn)足行業(yè)的需求，以便未來(lái)國內風(fēng)機業(yè)更好的發(fā)展。我國經(jīng)濟現正處在轉軌過(guò)程中，新的技術(shù)還未找到爆發(fā)點(diǎn)，在此態(tài)勢下的風(fēng)機行業(yè)正面臨著(zhù)產(chǎn)業(yè)再平衡與結構轉型的壓力。針對上述問(wèn)題，我國風(fēng)機行業(yè)必須高度重視，并采取有效的措施予以解決，以此促進(jìn)風(fēng)機行業(yè)的穩步發(fā)展。</span></div> <div style="text-align: justify; line-height: 2;"><span style="font-size: 16px;"> 前段時(shí)間,制造業(yè)的緩慢增長(cháng)是離心風(fēng)機市場(chǎng)增長(cháng)疲軟的重要原因。一年第四季度，風(fēng)機市場(chǎng)制造業(yè)的產(chǎn)值出現零九年第一季度以來(lái)最高降幅，亞洲等制造業(yè)均表現為匱乏裝填。其我中國內地、香港增長(cháng)緩慢，新加坡則是原地踏步，但是印度的制造業(yè)生產(chǎn)確確實(shí)實(shí)的實(shí)現實(shí)質(zhì)性的擴大，其相關(guān)指數仍處于歷史較低位置。幾者相比下，*以及土耳其的制造業(yè)生產(chǎn)活動(dòng)實(shí)現了快速的增長(cháng)，土耳其的增速創(chuàng )下三個(gè)季度以來(lái)的新高點(diǎn)。</span></div></p> </div> </div> <div id="erwz9pu" class="jump"> <p>上一條：<a href="/details_29603.html">怎樣提高通風(fēng)氣樓的防腐增加使用壽命</a> <p>下一條：<a href="/details_32314.html">現在合肥廠(chǎng)房通風(fēng)的設備有哪些類(lèi)型？</a></p> </div> </div> </section>  <footer id="footer">    <footer id="footer-pc" class="hidden-xs"> <div id="h4e0g4j" class="container footer-nav"> <ul> <li><a href="/product.html">服務(wù)工程</a></li> <li><a href="/gywm.html">公司介紹</a></li> <li><a href="/hzal.html">環(huán)保設備</a></li> <li><a href="/zxdt.html">新聞中心</a></li> </ul> </div> <div id="zgpwiwa" class="container contact"> <div id="55q0hbr" class="left"> <div>合肥泰諾環(huán)?？萍加邢薰?/div> 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