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id="ma4j3aa" class="proBig"><div id="kj9nm2l" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637211876904726562/9106620.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="2xjnpyp" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/qunxun/637211876904726562/9106620.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="e8d24uj" 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>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>肇慶螺桿泵批發(fā)廠家,螺桿泵</p><p><span>***更新：</span>2020-09-28 02:04:08</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3bcco3i" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市群勛科技有限公司</a></p><p><span>聯(lián)系人：</span>張華</p><p><span>郵箱: </span>zh@qxunad.com</p><p><span>電話: </span>18603057926</p><p><span>傳真: </span>0755_23156458</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-33075040</p><p><span>地址: </span>光明新區(qū)公明街道民生路70號(hào)銘源商務(wù)大廈808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="oq4st3a" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3hdugar" class="box"><p><p style="text-indent:25px">螺桿泵的腐蝕與防護(hù)，螺桿泵輸送的液體種類(lèi)很多，液體的性質(zhì)和螺桿泵的操作條件也是千差萬(wàn)別的，如液體的溫度可高達(dá)幾百度，壓力可達(dá)幾十兆帕，有的介質(zhì)呈酸性，有的介質(zhì)呈堿性?有的介質(zhì)腐蝕性強(qiáng)，肇慶螺桿泵批發(fā)廠家，有的介質(zhì)腐蝕性弱等。為了滿(mǎn)足以上要求，除了采用不同類(lèi)型的螺桿泵以外，還要了解不同的液體在各種條件下對(duì)金屬材料的腐蝕情況，從而針對(duì)不同的液體來(lái)選擇合適的耐腐蝕螺桿泵用于各類(lèi)化工生產(chǎn)工藝流程中去，并且采取相應(yīng)的防腐措施以延長(zhǎng)螺桿泵的使用壽命，這也是石油化工用螺桿泵的一個(gè)非常重要的問(wèn)題。多數(shù)螺桿泵是由金屬材料制造的，金屬材料腐蝕的規(guī)律比較復(fù)雜，不同的材料在同一種介質(zhì)中的腐蝕情況各不相同，同一種材料在不同介質(zhì)中的腐蝕情況也大相徑庭，比如碳鋼在稀***中腐蝕速度很快，但在濃***中卻相當(dāng)穩(wěn)定；普通的18-8型奧氏體不銹鋼能耐硝酸、冷磷酸、許多鹽類(lèi)及堿溶液、水和蒸汽、石油產(chǎn)品等化學(xué)介質(zhì)的腐蝕，但是對(duì)***、鹽酸、氫氟酸、鹵素，肇慶螺桿泵批發(fā)廠家、草酸等的化學(xué)穩(wěn)定性比較差；鋁在稀***和發(fā)煙***中穩(wěn)定，在中等和高濃度的***中卻不穩(wěn)定。因此，必須首先了解金屬腐蝕的原因和種類(lèi)，才能針對(duì)特定的化工物料，肇慶螺桿泵批發(fā)廠家，正確選用合適的耐腐蝕螺桿泵并采取合理的防腐措施。單螺桿泵、污泥螺桿泵、濃漿泵是一種正排量泵。肇慶螺桿泵批發(fā)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肇慶螺桿泵批發(fā)廠家,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876904726562/9106620.jpg"></div><p> (1)安裝傾角(θ)。安裝傾角指螺旋泵軸對(duì)水平面的夾角。它直接影響泵的效率和流量。據(jù)有關(guān)資料介紹，傾角每增加一度，效率大約降低3%。一般認(rèn)為傾角在30°～40°為經(jīng)濟(jì)。 </p> <p> (2)間隙。間隙指螺旋葉片與外殼之間的間隙。間隙越小，水漏損失就越小，泵的效率就越高。 </p> <p> (3)轉(zhuǎn)速(n)。螺旋泵的轉(zhuǎn)速較慢，一般為20～80 r/min。實(shí)驗(yàn)資料證明：螺旋泵的外徑較大時(shí)，轉(zhuǎn)速宜減小。 </p> <p> (4)提升高度(H)。螺旋泵只有提升高度，而沒(méi)有壓水高度。它的提升高度一般為3～8 m。 </p> <p> (5)螺旋葉片直徑(D)。泵的葉片直徑越大，其效率越高，螺旋泵的葉片直徑與泵軸直徑的比較好比例為2:1。 </p> <p> (6)頭數(shù)(Z)。頭數(shù)指螺旋葉片的片數(shù)，一般為1～4片。它們相隔一定的間距環(huán)繞泵軸螺旋上升。頭數(shù)越多，泵效率也越高。對(duì)于一定直徑的螺旋泵，每增加一個(gè)葉片頭數(shù)，提升能力約增加20%。 </p> <p> (7)導(dǎo)程和螺距。螺旋葉片環(huán)繞泵軸螺旋上升360°所經(jīng)軸向距離，即為一個(gè)導(dǎo)程λ。螺距S和導(dǎo)程λ的關(guān)系如下： </p> <p> <br /> </p> <p> (8)流量(Q)和軸功率(N)。流量可按下式計(jì)算： </p> <p> <br /> </p> <p> 軸功率為 </p> <p> <br /> </p> <p> 式中：D為葉片外徑(m)；d為泵軸直徑(m)；S為螺距(m)；α為提水?dāng)嗝媛?；n為轉(zhuǎn)速(r/min)；η為泵的效率(%)；ρ為所提升的液體密度(kg/m3)；Q為流量(m3/s)；H為提升高度(m)。 </p> <p> <br /> 高質(zhì)量螺桿泵歡迎咨詢(xún)當(dāng)主動(dòng)螺桿旋轉(zhuǎn)時(shí)，螺桿泵密封容積在螺牙的擠壓下提高螺桿泵壓力，并沿軸向移動(dòng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肇慶螺桿泵批發(fā)廠家,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876899248047/2424011.jpg"></div><p> 二、螺桿泵的轉(zhuǎn)速選用 </p> <p> <br /> </p> <p> 螺桿泵的流量與轉(zhuǎn)速成線性關(guān)系，相對(duì)于低轉(zhuǎn)速的螺桿泵，高轉(zhuǎn)速的螺桿泵雖然能增加了流量和揚(yáng)程，但功率明顯增大，高轉(zhuǎn)速加速了轉(zhuǎn)子與定子間的磨耗，必定使螺桿泵過(guò)早失效，而且高轉(zhuǎn)速螺桿泵的定轉(zhuǎn)子長(zhǎng)度很短，極易磨損，因而縮短了螺桿泵的使用壽命。 </p> <p> <br /> </p> <p> 三、確保雜物不進(jìn)入泵體 </p> <p> <br /> </p> <p> 濕污泥中混入的固體雜物會(huì)對(duì)螺桿泵的橡膠材質(zhì)定子造成損壞，所以確保雜物不進(jìn)入泵的腔體是很重要的，很多污水廠在泵前加裝了粉碎機(jī)，也有的安裝格柵裝置或?yàn)V網(wǎng)，阻擋雜物進(jìn)入螺桿泵，對(duì)于格柵應(yīng)及時(shí)清撈以免造成堵塞。 </p> <p> <br /> </p><p> 4、拆卸轉(zhuǎn)子、連桿、短節(jié)、密封盒先卸下三通。卸去鋼絲卡圈或緊定螺釘。退出圓柱銷(xiāo)防落套后，取下圓銷(xiāo)。接下來(lái)可分離轉(zhuǎn)子、連桿、短節(jié)、傳動(dòng)軸等零件。卸下短節(jié)后，即可取出密封盒。對(duì)采用機(jī)械密封的，則要非常小心翼翼地進(jìn)行，否則極易造成動(dòng)、靜環(huán)的破碎。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 5、重新裝泵前，應(yīng)做好各項(xiàng)更換、維修的準(zhǔn)備工作。嚴(yán)格檢查待裝零件的質(zhì)量，清洗是否干凈，外表是否損壞。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 6、裝配步驟正好與拆卸步驟相反。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 7、在裝配填料密封時(shí)，注意調(diào)整不要過(guò)緊。待試車(chē)進(jìn)料后逐步壓緊，以介質(zhì)略有滴漏為宜。如機(jī)械密封。則應(yīng)注意動(dòng)、靜環(huán)上無(wú)雜質(zhì)，并涂上潤(rùn)滑脂。靜環(huán)必須平整地裝手密封盒。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 8、連桿節(jié)頭處應(yīng)檢查橡膠護(hù)套是否損壞。在空腔內(nèi)是否充滿(mǎn)潤(rùn)滑脂。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 9、安裝定子時(shí)，橡膠表面涂以潤(rùn)滑脂(包括轉(zhuǎn)子)，有利于安裝及試運(yùn)轉(zhuǎn)。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 螺桿泵可以用于高粘度流體的輸送和含有硬質(zhì)懸浮顆粒介質(zhì)或含有纖維介質(zhì)的輸送。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="肇慶螺桿泵批發(fā)廠家,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876900634765/2986980.jpg"></div><p> 應(yīng)力腐蝕是指拉應(yīng)力和腐蝕環(huán)境的聯(lián)合作用而引起的金屬腐蝕破裂，應(yīng)力和腐蝕是相互促進(jìn)的。一方面腐蝕使金屬有效截面積減小和表面形成缺口產(chǎn)生應(yīng)力集中，另一方面應(yīng)力的增大使材料產(chǎn)生大的變形又加速了腐蝕的進(jìn)展，使表面缺口向深處擴(kuò)展，往往在沒(méi)有任何預(yù)兆的情況下導(dǎo)致設(shè)備的破壞，因此應(yīng)力腐蝕破裂也是一種很危險(xiǎn)的腐蝕損壞。 </p> <p> <br /> </p> <p> 腐蝕疲勞又稱(chēng)疲勞腐蝕，是指金屬材料或結(jié)構(gòu)在交變載荷和腐蝕介質(zhì)共同作用下引起的疲勞強(qiáng)度或疲勞壽命降低的現(xiàn)象。材料在長(zhǎng)時(shí)間的交變載荷作用下，應(yīng)力值達(dá)到或超過(guò)材私的疲勞極限時(shí)就會(huì)使金屬表面產(chǎn)生微小裂紋，腐蝕介質(zhì)進(jìn)人微裂紋加速了裂紋向深處擴(kuò)展:***可能造成金屬構(gòu)件突然斷裂，從宏觀上看，斷口有兩個(gè)明顯不同的區(qū)域：一是腐蝕疲勞裂紋的產(chǎn)生和擴(kuò)展區(qū)，二是截面嶄新的***斷裂區(qū)。在石油化工生產(chǎn)行業(yè)的設(shè)備當(dāng)中，螺桿泵轱等均有可能發(fā)生腐蝕疲勞。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 更換填料時(shí)，應(yīng)全部更換，軸若磨損嚴(yán)重也應(yīng)更換?；葜萋輻U泵廠家直供</p><p style="text-indent:25px">各螺桿的相互嚙合以及螺桿與襯筒內(nèi)壁的緊密配合。肇慶螺桿泵批發(fā)廠家</p><p> 單螺桿泵是一種單螺桿式輸運(yùn)泵，它的主要工作部件是偏心螺旋體的螺桿（稱(chēng)轉(zhuǎn)子）和內(nèi)表面呈雙線螺旋面的螺桿襯套（稱(chēng)定子）。單螺桿泵工作原理是當(dāng)電動(dòng)機(jī)帶動(dòng)泵軸轉(zhuǎn)動(dòng)時(shí)，螺桿一方面則繞本身的軸線旋轉(zhuǎn)，另一方面它又沿襯套內(nèi)表面滾動(dòng)，這樣便會(huì)形成泵的密封腔室。螺桿每轉(zhuǎn)一周，密封腔內(nèi)的液體向前推進(jìn)一個(gè)螺距，隨著螺桿的連續(xù)轉(zhuǎn)動(dòng)，液體螺旋形方式從一個(gè)密封腔壓向另一個(gè)密封腔，***擠出泵體。單螺桿泵常適用于石蠟、糖蜜、果肉、巧克力漿、油漆、柏油、淀粉糊、潤(rùn)滑脂、泥漿、黏土、陶土等介質(zhì)的傳送。雙螺桿泵是外嚙合的螺桿泵，它利用相互嚙合，互不接觸的兩根螺桿來(lái)抽送液體。雙螺桿泵的一端伸出泵外的主動(dòng)螺桿由原動(dòng)機(jī)驅(qū)動(dòng)，主動(dòng)螺桿與從動(dòng)螺桿具有不同旋向的螺紋，螺桿與泵體緊密貼合，從動(dòng)螺桿是通過(guò)同步齒輪由主動(dòng)螺桿帶動(dòng)的。泵內(nèi)吸入室應(yīng)與排出室嚴(yán)密地隔開(kāi)，因此，泵體與螺桿外圓表面及螺桿與螺桿間隙應(yīng)盡可能小些，同時(shí)螺桿與泵體、螺桿與螺桿間又相互形成密封腔，保證密閉，否則就可能有液體從間隙中倒流回去。 </p> <p> 雙螺桿泵常適用于潤(rùn)滑油、潤(rùn)滑脂、原油、柏油、燃料油及其他高黏度油等介質(zhì)的傳送。 </p> <p> <br /> </p> <p> <br /> 肇慶螺桿泵批發(fā)廠家</p><p style="text-indent:25px">深圳市群勛科技有限公司總部位于光明新區(qū)公明街道民生路70號(hào)銘源商務(wù)大廈808室，是一家深圳市群勛科技有限公司經(jīng)營(yíng) 微電子智能產(chǎn)品的技術(shù)開(kāi)發(fā)和銷(xiāo)售；自動(dòng)化點(diǎn)膠機(jī)、自動(dòng)化控制器、機(jī)械設(shè)備、電子產(chǎn)品、自動(dòng)化點(diǎn)膠設(shè)備及其配件的銷(xiāo)售；國(guó)內(nèi)貿(mào)易、貨物及技術(shù)進(jìn)出口。微電子智能化產(chǎn)品的生產(chǎn)。的公司。群勛科技作為深圳市群勛科技有限公司經(jīng)營(yíng) 微電子智能產(chǎn)品的技術(shù)開(kāi)發(fā)和銷(xiāo)售；自動(dòng)化點(diǎn)膠機(jī)、自動(dòng)化控制器、機(jī)械設(shè)備、電子產(chǎn)品、自動(dòng)化點(diǎn)膠設(shè)備及其配件的銷(xiāo)售；國(guó)內(nèi)貿(mào)易、貨物及技術(shù)進(jìn)出口。微電子智能化產(chǎn)品的生產(chǎn)。的企業(yè)之一，為客戶(hù)提供良好的視覺(jué)噴點(diǎn)膠機(jī)，點(diǎn)膠閥，壓力泵，壓痕檢測(cè)機(jī)。群勛科技致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對(duì)用戶(hù)產(chǎn)品上的貼心，為用戶(hù)帶來(lái)良好體驗(yàn)。群勛科技創(chuàng)始人張華，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1448697.html</p></div></div></div></div></div><div id="gmvr22n" class="page-right twoColRt"><div id="vsh2s9h" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="n3smneb" class="recomPic likePro"><a 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