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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8ejl9p8" 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="p3xuod7" 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>全國螺桿泵銷售公司,螺桿泵</p><p><span>***更新：</span>2020-10-22 16:16:41</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="i83oksi" 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="ncubvgy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nrdkt7a" class="box"><p><p> 螺桿泵，螺旋泵，亦稱“螺旋揚(yáng)水機(jī)”、“阿基米德螺旋泵”。利用螺旋葉片的旋轉(zhuǎn)，使水體沿軸向螺旋形上升的一種泵。由軸、螺旋葉片、外殼組成。抽水時，將泵斜置水中，使水泵主軸的傾角小于螺旋葉片的傾角，螺旋葉片的下端與水接觸。當(dāng)原動機(jī)通過變速裝置帶動螺旋泵軸旋轉(zhuǎn)時，水就進(jìn)入葉片，沿螺旋型流道上升，直至出流。結(jié)構(gòu)簡單，制造容易，流量較大，水頭損失小，效率較高，便于維修和保養(yǎng)，但揚(yáng)程低，轉(zhuǎn)速低，需設(shè)變速裝置。多用于灌溉、排澇，以及提升污水、污泥等場合。中國從20世紀(jì)70年代開始使用，全國螺桿泵銷售公司。螺旋泵的裝置包括原動機(jī)，全國螺桿泵銷售公司，全國螺桿泵銷售公司、變速傳動裝置和螺旋泵三部分，如圖1所示，具體是由螺旋葉片1、泵軸2、軸承座 </p> <p> <br /> 古老的機(jī)械仍然是用在許多低技術(shù)的應(yīng)用。全國螺桿泵銷售公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國螺桿泵銷售公司,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876904726562/9106620.jpg"></div><p> 反應(yīng)的種類 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 腐蝕是材料與環(huán)境發(fā)生反應(yīng)的結(jié)果。金屬材料與環(huán)境通常發(fā)生化學(xué)反應(yīng)或電化學(xué)反應(yīng)，非金屬材料與環(huán)境則會發(fā)生溶脹、溶解、老化等反應(yīng)。 (二）腐蝕的類型及機(jī)理 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 1.按腐蝕的機(jī)理分為化學(xué)腐蝕和電化學(xué)腐蝕兩大類 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 化學(xué)腐蝕是指金屬與干燥的氣體或非電解質(zhì)溶液產(chǎn)生化學(xué)作用而引起的腐蝕。化學(xué)腐蝕通常為干腐蝕，腐蝕速度相對較小。如碳鋼在鑄造、鍛造、熱處理過程中發(fā)生的高溫氧化以及鋁在無水乙醇中的腐蝕等均屬于此類腐蝕。實(shí)際上單純的化學(xué)腐蝕是相當(dāng)少的，一些干燥介質(zhì)中如混人水分常會由化學(xué)腐蝕轉(zhuǎn)化為電化學(xué)腐蝕。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 電化學(xué)腐蝕是指金屬與電解質(zhì)溶液發(fā)生電化學(xué)反應(yīng)而產(chǎn)生的破壞，反應(yīng)過程均包括陽極反應(yīng)和陰極反應(yīng)兩個過程，腐蝕過程中伴有電流的流動，即電子和離子的運(yùn)動。金屬在酸、堿、鹽等化學(xué)溶液和土壤、海水、潮濕的大氣中的腐蝕均屬于此類腐蝕。通常情況下，電化學(xué)腐蝕要比化學(xué)腐蝕強(qiáng)烈得多，金屬的腐蝕破壞大多數(shù)也是由電化學(xué)腐蝕引起的。 </p> <p> <br /> </p> <p> <br /> 官方螺桿泵性價比高突出的優(yōu)點(diǎn)是輸送介質(zhì)時不形成渦流、對介質(zhì)的粘性不敏感。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國螺桿泵銷售公司,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876899189453/5397892.jpg"></div><p> 螺桿泵的特點(diǎn)及其選用方法，如果螺桿泵在設(shè)計選型方面考慮不周，會給以后的使用、管理、維修帶來麻煩，所以選用的一臺按生產(chǎn)實(shí)際需要，合理可靠的螺桿泵既能保證生產(chǎn)順利進(jìn)行，又可降低修理成本。螺桿泵因其可變量輸送、自吸能力強(qiáng)、可逆轉(zhuǎn)、能輸送含固體顆粒的液體等特點(diǎn)，在污水處理廠中，***地被使用在輸送水、濕污泥和絮凝劑藥液方面。螺桿泵選用應(yīng)遵循經(jīng)濟(jì)、合理、可靠的原則。一、螺桿泵的品質(zhì) </p> <p> <br /> </p> <p> 現(xiàn)在市場上的螺桿泵的種類較多，相對而言，進(jìn)口的螺桿泵設(shè)計合理，材質(zhì)精良，但價格較高，服務(wù)方面有的不到位，配件價格高，訂貨周期長，可能影響生產(chǎn)的正常運(yùn)行。 </p> <p> <br /> </p><p> 單雙螺桿泵和普通的工作原理及產(chǎn)品介紹，螺桿泵是利用螺桿的回轉(zhuǎn)來吸排液體的。螺桿為主動螺桿，由原動機(jī)帶動回轉(zhuǎn)，兩邊的螺桿為從動螺桿，隨主動螺桿作反向旋轉(zhuǎn)。主、從動螺桿的螺紋均為雙頭螺紋。由于各螺桿的相互嚙合以及螺桿與襯筒內(nèi)壁的緊密配合，在泵的吸入口和排出口之間，就會被分隔成一個或多個密封空間。隨著螺桿的轉(zhuǎn)動和嚙合，這些密封空間在泵的吸入端不斷形成，將吸入室中的液體封入其中，并自吸入室沿螺桿軸向連續(xù)地推移至排出端，將封閉在各空間中的液體不斷排出，猶如一螺母在螺紋回轉(zhuǎn)時被不斷向前推進(jìn)的情形那樣，這就是螺桿泵的基本工作原理。 </p> <p> <br /> </p> <p> 螺桿泵有單螺桿泵、雙螺桿泵和三螺桿泵。 </p> <p> <br /> </p> <p> 螺桿泵的工作原理是：螺桿泵工作時，液體被吸入后就進(jìn)入螺紋與泵殼所圍的密封空間，當(dāng)主動螺桿旋轉(zhuǎn)時，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。由于螺桿是等速旋轉(zhuǎn)，所以液體出流流量也是均勻的。 </p> <p> <br /> </p> <p> 螺桿泵特點(diǎn)為：螺桿泵損失小，經(jīng)濟(jì)性能好。壓力高而均勻，流量均勻，轉(zhuǎn)速高，能與原動機(jī)直聯(lián)。 </p> <p> <br /> </p> <p> 螺桿泵可以輸送潤滑油，輸送燃油，輸送各種油類及高分子聚合物，用于輸送黏稠液體。 </p> <p> <br /> 單螺桿泵流量均勻壓力穩(wěn)定，低轉(zhuǎn)速時更為明顯.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="全國螺桿泵銷售公司,螺桿泵" src="http://tyunfile.71360.com/UploadFile/qunxun/637211876901611328/4013793.jpg"></div><p style="text-indent:25px">螺桿泵，G系列單螺桿泵相關(guān)知識介紹，螺桿泵的工作原理是利用一個或者多個螺旋，沿螺桿軸移動流體或固體，屬于一種正排量泵。螺桿泵中**簡單的形式——阿基米德螺桿泵則是單個螺桿在一個圓柱形的空腔中旋轉(zhuǎn)，以達(dá)到在螺桿的主軸中移動物料的目的。這種古老的機(jī)械在現(xiàn)代仍在很多低技術(shù)的行業(yè)中普遍使用，比如糧食的運(yùn)輸以及其他固體農(nóng)機(jī)械灌溉系統(tǒng)。螺桿泵是一款適用于食品、制藥、化妝品等一系列衛(wèi)生要求比較高的行業(yè)的產(chǎn)品，同時螺桿泵是中成泵業(yè)研發(fā)人員基于G系列單螺桿泵，并通過材質(zhì)和加工工藝的改進(jìn)而研發(fā)出來的產(chǎn)品。螺桿泵的工作原理與中成泵業(yè)的G系列單螺桿泵一致，但是為了達(dá)到輸送材質(zhì)的食品衛(wèi)生標(biāo)準(zhǔn)，泵體整體采用了304、316等耐腐蝕性能較高的奧氏體不銹鋼材質(zhì)并對其內(nèi)外進(jìn)行全拋光處理。同時也采用食品橡膠或者氟橡膠材質(zhì)等符合食品衛(wèi)生標(biāo)準(zhǔn)的材質(zhì)，并采用卡箍快裝接頭同時在接縫處做打磨處理，方便拆裝泵件和進(jìn)行清洗。拆卸轉(zhuǎn)子、連桿、短節(jié)、密封盒先卸下三通。全國螺桿泵銷售公司</p><p style="text-indent:25px">根據(jù)泵的大小不同可以輸送粘度從厘泊的介質(zhì)。全國螺桿泵銷售公司</p><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的腐蝕損壞。 </p> <p> <br /> </p> <p> 腐蝕疲勞又稱疲勞腐蝕，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。材料在長時間的交變載荷作用下，應(yīng)力值達(dá)到或超過材私的疲勞極限時就會使金屬表面產(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 /> 全國螺桿泵銷售公司</p><p style="text-indent:25px">深圳市群勛科技有限公司主要經(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)和良好的市場口碑。公司業(yè)務(wù)涵蓋視覺噴點(diǎn)膠機(jī)，點(diǎn)膠閥，壓力泵，壓痕檢測機(jī)等，價格合理，品質(zhì)有保證。公司從事機(jī)械及行業(yè)設(shè)備多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1663497.html</p></div></div></div></div></div><div id="roqskzp" class="page-right twoColRt"><div id="wqd8ebi" class="box01 margin10 clearfix"><h3><a 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