公司新聞(wen)
| W7.2ZK-94Z2M1-W75大流量螺杆泵(beng)配電機:75KW-4;流量:200m3/h;壓力(li):0.62Mpa | |||||||
| 發布時間：2015-7-3 15:08:12 點擊次(ci)數： | |||||||
我公司深(shen)谙完善的檢測設(shè)備是一流産品産(chǎn)出的有力保障，為(wei)此我公司斥巨資(zi)購置了萬能工具(ju)顯微鏡、漸開線檢(jian)測儀、螺旋線檢測(cè)儀，萬能測齒儀、光(guang)學傾斜儀、布洛維(wéi)硬度計、投影儀等(deng)。我公司還建有國(guo)家評定的 B 級産品(pǐn)試驗站，理化試驗(yàn)室、長度計量室均(jun1)是國家計量确認(ren)的合格單位。 在信(xin)息化建設方面，我(wǒ)公司目前廣泛采(cǎi)用 CAD 制圖，及相應的(de)技術管理軟件。财(cái)務管理實現電算(suàn)化，銷售采用 CRM 軟件(jian)管理，生産系統選(xuan)用 ERP 管理軟件中的(de)适用模塊。這些現(xiàn)代化信息化工具(ju)的使用，實現了管(guǎn)理工作的高效、嚴(yán)密、及規範性，使公(gōng)司的發展踏入一(yī)個良性循環的軌(guǐ)道。
1. 本公(gōng)司常規産品 1-3 天發(fa)貨 , 特殊要求或者(zhe)需定做的産品發(fā)貨時間已與客戶(hù)協商為準 , 2. 泵運費(fèi)方式有兩種 : 快遞(di)和物流 . 小泵和小(xiǎo)型配件發快遞 , 其(qí)餘體積較大 , 數量(liàng)較多 , 推薦走專線(xian)物流貨運 , 一般南(nan)方 , 中部地區及沿(yán)海地區 3-5 天左右到(dao)達 . 西部 , 北部較遠(yuǎn)的地區以及少數(shù)二次中轉地區 5-8 天(tiān)左右可到 , 具體覆(fu)蓋範圍請咨詢公(gōng)司客服人員 . 安裝(zhuang)使用 : 請您根據産(chan)品說明書的步驟(zhòu)進行操作 , 如有問(wèn)題 , 請聯系我公司(si) , 我公司将會請最(zuì)專業的技術人員(yuan)為您提供服務 . 為(wéi)了保護您的利益(yi) , 我們已經提醒客(kè)戶在收到貨物時(shi) , 要開箱驗貨 , 如在(zài)打開驗貨時發現(xiàn)貨物丢失 , 損害或(huò)者不符 , 請拒絕簽(qiān)收 , 您簽收就代表(biao)已準确無誤的收(shōu)到後屋 , 若在簽收(shōu)貨物之後才發現(xian)貨物丢失或者不(bu)符 , 如不負責 . 客戶(hù)收到貨後 , 産品無(wu)法安裝或者規格(gé)有誤 , 本公司提供(gòng)退貨或者換貨服(fú)務 , 退貨或者換貨(huò)的客戶請保證貨(huo)物的完好無損 , 并(bing)承擔往返運費 . 客(kè)戶收到後 , 如果産(chan)品存在質量問題(tí) , 請在收貨後 7 天内(nei)聯系我公司 , 提供(gòng)相關質量問題圖(tú)片 , 我公司将在第(di)一時間給您退貨(huò)或者換貨 , 因為我(wo)公司已經在發貨(huò)前已經仔細檢查(cha)過 , 所以過期将不(bú)提供此項服務 , 還(hai)請諒解 .
我公司對産(chan)品質保期前後的(de)服務的具體内容(rong)：
輸(shu)送糖蜜泵 W2KSE-34W63變頻減(jiǎn)速整機 :1.3m3/h 壓力:0.5Mpa V6.4Zi-75M3W73立式(shì)雙螺杆泵;配電機(jī):Y37KW-4;流量:100m3/h;壓力:0.6Mpa 碼頭卸(xie)油泵: W6.4ZK-75Z3M1W73雙螺杆泵;配(pei)電機:YB45KW-4;流量:100m3/h;壓力:0.6 W7.2 ZK-43M1W73雙(shuāng)螺杆泵;配電機:YB75KW-4;流(liú)量:100m3/h;壓力:0.6Mpa W7.2ZK57Z1M1W73雙螺杆泵(bèng);配電機:YH55KW-4;流量:100m3/h;壓力(li):0.8Mpa 原油中轉泵 W7.3Z75Z1MbW81雙螺(luo)杆泵;配電機流量(liang):100m3/h;壓力:1.0Mpa W6.4ZK-90Z3M1W73雙(shuāng)螺杆泵;配電機流(liú)量:107m3/h;壓力:1.2Mpa W4.1ZK27M1W73雙螺杆泵;配(pei)電機:Y22KW-4;流量:10m3/h;壓力:2.0Mpa W3.1ZK-30Z1M1W73雙螺杆泵(beng);配電機:YB7.5KW-4;流量:10m3/h;:0.4Mpa W5kse-40M2W78雙螺杆泵;配電機(jī):YBVP11KW-6;流量:10m3/h;壓力:0.3Mpa W7.3ZK-75Z0M1W80;配電機:Y315-6B3;流量:110m3/h;:0.6Mpa W6.4ZK-100M1W75雙螺杆泵;配電(dian)機流量:118m3/h;壓力:0.6Mpa W6.4ZK-90M1W73雙螺(luó)杆泵;配電機:Y37KW-4;流量(liàng):120m3/h;壓力:0.4Mpa 輸送瀝青泵(beng) V7.2Zi-57M3W73雙螺杆泵;配電機(jī):Y45KW-4;流量:120m3/h;壓力:0.6MPa 瀝青(qing)混合料專用泵 W3.1ZK-40M1W74雙(shuang)螺杆泵;:YB7.5KW-4;:13m3/h;壓力:0.4Mpa W3.1ZK-40M1W73;配電機:YB7.5KW-4;流量:15m3/h;壓力(li):0.4Mpa 雙螺杆泵;配電機(ji):Y90KW-6;流量壓力 W7.3Z112MbW80雙螺杆(gǎn)泵;配電機:YB90KW-6;流量:166m3/h;壓(ya)力:1.0Mpa 齒輪箱滑油泵(beng) V7.2ZK-75Z1M1W73雙螺杆泵;流量:168m3/h;: W2.1ZK-24M1W73雙螺杆(gǎn)泵;:YH132S-6-3KW;流量:2.4m3/h;壓(yā)力:0.6Mpa W7.2ZK-94M1W73雙螺杆泵;配電(dian)機:Y90KW-4;流量:200m3/h;壓力:1.0Mpa 高粘(zhān)度液體泵 W7.2ZK-94Z2M1-W75雙螺杆(gǎn)泵;配電機:YB2 75KW-4;流量:200m3/h;壓(yā)力:0.62Mpa W7.2ZK-94M1W72A雙螺杆泵;配電(dian)機流量:200m3/h;壓力:0.8Mpa W5.2Z40Z1MbW81;配電機:Y30KW-6;流量(liàng)壓力:1.0Mpa W3.1ZK-58Z1M1W73雙螺杆;配電(dian)機:YB11KW-4;流量:20m3/h;壓力:0.4Mpa W4.1ZK-48M1W73雙螺杆泵(bèng);:Y15KW-4;流量:25m3/h;壓力(lì):0.4Mpa MW6.5ZK25Z0M1W81雙螺杆(gǎn)泵;配電機:YB250M-4B3-55KW;流量:25m3/h;壓(yā)力:4Mpa 抽石蠟泵 W4.1ZK-56M1W75雙螺(luó)杆泵;:YBH15KW-4;流量(liang):26.5m3/h;壓力:0.8Mpa 雙螺杆泵;配(pèi)電機:YB15KW-4;流量:26.6m3/h;壓力:0.8Mpa 雙螺杆泵(bèng);:YB45KW-4;流量壓力(lì):0.23Mpa W7T.3Z-85Z0MBW80雙螺杆泵;配電機(ji):Y315L1-4;流量:273;壓力:1.2 W7T.2ZK28M1W73雙螺杆(gan)泵配電機:Y132KW-4;壓(ya)力:3.5Mpa W2kse-24M1W63雙螺杆泵;配電(dian)機:YB1.5KW-4;流量:2m3/h;壓力:0.4Mpa 抽瀝(li)青泵 雙螺杆泵;配(pei)電機:YB100L2-4B3D;流量:3.4;壓力:0.4 W7T.2ZK-94Z1M1W73雙(shuāng)螺杆泵;配電機:YB110KW-4;流(liu)量:300m3/h;壓力:0.6Mpa W7.2ZK-112M1W73雙螺杆泵(beng);配電機:YH132KW-4;流量:300m3/h;壓力(li):0.8Mpa 抽粘膠液泵 W6kse-50M4W75雙螺(luó)杆泵;配電機:YB11KW-4;流量(liang)壓力:0.5Mpa W5kse-65M2W63雙螺杆泵配(pei)電機:YHB15KW-4;流量壓力:0.6Mpa W6kse-30M4W77雙(shuāng)螺杆泵配電機:Y37KW-2;流(liú)量壓力:1.2Mpa 抽重質燃(ran)油泵 W3kse-40M1W77雙(shuāng)螺杆泵;配電機流(liú)量:3m3/h;壓力:1Mpa 油氣混(hun)輸泵 W4.2Z70Z1MbW81雙螺杆泵;配(pei)電機:YX3-22KW-4;流量:40m3/h;壓力:1.0Mpa W5.1ZK-54M1W73雙(shuāng)螺杆泵配電機:YB22KW-4;流(liu)量壓力:0.8Mpa W5.2ZK-78M1W80雙螺杆泵(bèng);:Y45KW-6;:45m3/h;壓力(li):1.5Mpa 雙螺(luo)杆泵;配電機:Y75KW-4;流量(liàng):45m3/h;:2.5MPa W3.1ZK-20Z3M1W73配(pèi)電機:YB4KW-4;:5.1m3/h;壓力:0.5Mpa W8.4ZK-67M1W73雙(shuāng)螺杆泵;配電機:YH200KW-4;流(liú)量壓力:0.8Mpa 雙螺杆泵(beng);配電機:YH280KW-4;流量:500m3/h;壓力(lì)抽炭黑油泵 W8.5ZK-100Z0M1W84雙螺(luo)杆泵;配電機流量(liang):500m3/h;壓力:0.8Mpa W5.1ZK65Z1M1W73雙螺杆泵;配(pei)電機:Y30KW-4P;流量壓力:1Mpa W5.1ZK65Z1M1W78雙(shuang)螺杆泵配電機:Y30KW-4P;流(liú)量:50m3/h;壓力:1Mpa W5.1ZK-54Z1M1W77雙螺杆泵(beng);配電機:YB18.5-4;流量:50m3/h;壓力(lì):0.2Mpa W7kse-75M2W78;:YBVP22KW-6;流量:50m3/h;壓力(lì):0.2Mpa W6.5Z-67Z0MBW80雙螺杆泵配電機(jī):Y250M-6;流量:54;壓力:1.2 W6.4ZK-62M1W60A雙螺杆(gan)泵;配電機:Y37KW-4;流量壓(yā)力:1.0Mpa 抽瀝青改性劑(ji)泵 W5.1ZK78M1W73雙螺(luó)杆泵;配電機:Y37KW-4;流量(liang):60m3/h;壓力:1.0Mpa W5.2Z-65Z1M1W80;配(pèi)電機:YB45KW-4;流量:60m3/h;壓力:0.7Mpa W8.4ZK-100Z3M1W73;:YB132KW-4;流(liú)量壓力:0.2Mapa 輸送原油(yóu)泵 雙螺杆泵;配電(dian)機:YH250KW-4;流量:650m3/h;壓力:0.8Mpa 雙螺(luo)杆泵;配電機流量(liàng):66m3/h;壓力:0.1Mpa W5.1Z-78M1W73雙螺杆泵;配(pèi)電機:YB45KW-4;流量:69.6 m3/h;壓力:1Mpa W2.1ZK-34M1W73雙(shuāng)螺杆泵;配電機:YB4KW-4;流(liú)量:6m3/h;:0.6Mpa W3.1ZK-20Z2M1W73雙螺杆泵(bèng);配電機:Y132S-4B3D;流量:7.1;壓力(li):0.4 W6.4ZK75Z1M1W73雙螺杆泵;配電機(ji):YB37KW-4;流量:78m3/h;壓力:0.8Mpa 輸送重(zhòng)油泵 W2.1ZK-34M1W73雙螺杆泵;:YB7.5KW-4;流量:8.9m3/h;壓力:0.6Mpa W6.4Zi62Z1M1W73雙(shuāng)螺杆泵;配電機:Y225M-4-45KW;:80m3/h;壓力:1.0Mpa W6.4ZK62Z1M1W73;配電機流量:80m3/h;壓力(li):1.0Mpa 高粘度打膠泵 W6.4ZK62Z1M1W77雙螺杆泵(bèng)配電機流量:80m3/h;壓力(li):0.3Mpa W6.4ZK-62M1W73雙螺杆泵;配電機(ji):YB75KW-4;流量:80m3/h;壓力:2.0Mpa 瀝青混(hun)合料專用泵 雙螺(luó)杆泵;配電機:YH225S-4B3-37KW;:80m3/h;壓力:0.8Mpa W6.5Z100Z1MbW81;配(pei)電機流量:80m3/h;壓力:1.0Mpa W6.5Z100MbW81雙(shuang)螺杆泵;配電機:YVP55KW-6;流(liu)量:80m3/h;壓力:1.0Mpa ;配電(diàn)機:YX3-45KW-4;流量壓力:1.0Mpa W6.4ZK-100Z3M1W77雙螺(luo)杆泵;配電機:Y55KW-6;流量(liang):88m3/h;壓力:1.0Mpa W4kse-48M1W77雙螺杆泵;配(pei)電機:YB7.5KW-6;流量:8m3/h;壓力 ●雙(shuang)螺杆泵可分為内(nei)置軸承和外置軸(zhou)承兩種形式。在内(nei)置軸承的結構型(xing)式中軸承由輸送(song)物進行潤滑。外置(zhì)軸承結構的雙螺(luo)杆泵工作腔同軸(zhóu)承是分開的。由于(yu)這種泵的結構和(he)螺杆間存在的側(ce)間隙，它可以輸送(song)非潤滑性介質。此(cǐ)外，調整同步齒輪(lún)使得螺杆不接觸(chu)，同時将輸出扭矩(ju)的一半傳給從動(dong)螺杆。正如所有螺(luó)杆泵一樣，外置軸(zhou)承式雙螺杆泵也(ye)有自吸能力，而且(qie)多數泵輸送元件(jian)本身都是雙吸對(dui)稱布置，可消除軸(zhóu)向力，也有很大的(de)吸高。Double screw pump can be divided into internal bearing and the outer bearing two forms.In the built-in bearing structure bearing lubrication by conveying material.Working with external bearing structure of the double screw pump bearings are separated.Owing to the pump structure and side clearance between screw, it can transport non-lubricative medium.In addition, the adjustment of the synchronous gear makes the screw does not contact, at the same time the output torque of the half to driven screw.Like all of the screw pump, external bearing type twin-screw pump, and most are double suction pump element itself symmetric arrangement, can eliminate the axial force, also has a lot of high absorption. ●雙螺杆泵系(xì)列産品分為單吸(xī)雙螺杆泵和雙吸(xi)雙螺杆泵兩大類(lei)。該系列産品具有(yǒu)特殊的螺杆型線(xiàn)和與之配套的特(te)殊結構，廣泛适用(yong)于石油、化工、冶金(jīn)、鋼鐵、電力、船舶、制(zhì)藥、食品、建材等各(ge)種行業，其适用介(jie)質之多、輸送範圍(wei)之廣、應用工況之(zhī)複雜是其它泵類(lèi)産品無法比拟的(de)。這些特點也使得(dé)該系列泵具有潛(qian)在的使用發展前(qian)景。Double screw pump series products are divided into single suction of two kinds of double screw pump and double suction double screw pump.This series of products have special screw lines and form a complete set with the special structure, widely used in petroleum, chemical industry, metallurgy, steel, electricity, shipbuilding, pharmaceutical, food, building materials and other industries, by as much as its applicable medium, transmission range wide, application condition of the complex is unmatched by other pump product.These features also makes the use of this series of pumps with potential development prospects. ●泵體内裝有兩(liǎng)根左、有施單頭螺(luó)紋的螺杆，主動螺(luó)杆2由動力機驅動(dòng)轉動時，靠同步齒(chi)輪1帶動從動螺杆(gǎn)3轉動。兩根螺杆以(yi)及螺杆與泵體. 之(zhi)間存在着間隙，該(gai)間隙靠齒輪和軸(zhou)承保證。其間隙大(dà)小，取決于液體粘(zhan)度、工作壓力等因(yīn)素。由于每根螺杆(gan)兩端螺紋的旋向(xiang)相反，螺杆轉動時(shí)，由螺杆齧合線形(xíng)成的泵工作腔。Equipped with two left in the pump body, a single thread screw, active screw driven by engine 2 turns, driven by synchronous gear 1 driven screw 3 rotation.Two screw and screw and pump body. There is a gap between the gap by gear and bearing.The gap size, depends on the liquid viscosity, pressure and other factors.Because each thread rotate to the opposite on both ends of the screw, the screw rotates, formed by the screw meshing line pump working chamber. ●該(gāi)型泵采用雙吸式(shi)結構，螺杆兩端處(chu)于同一壓力腔中(zhong)，軸向力可以自行(hang)平衡。兩端軸承采(cǎi)用外裝式，單獨采(cǎi)用潤滑油(脂)潤滑(hua)，因而不受輸送介(jie)質的影響。兩螺杆(gǎn)間用一對同步齒(chi)輪驅動，螺杆齒面(mian)間并不接觸，而留(liú)有一微小間隙，介(jie)質中的雜質并不(bú)能對螺杆齒面産(chan)生直接的磨損(除(chú)沖刷外)。 除一些小(xiao)排量泵外(2W.W4.0以下)，一(yī)般在泵體上都帶(dai)有内流式安全閥(fa)，當排放壓力超過(guo)額定值時，有一定(ding)的保護作用。 泵體(tǐ)上的進出口方向(xiàng)有兩種，一為水平(ping)進，水平出;二為水(shuǐ)平進，垂直向上出(chū);用戶可根據自己(jǐ)需要選擇。This type pump adopts double suction type structure, at the same pressure in the cavity on both ends of the screw, the axial force can balance itself.Both ends of bearing mounted outside using, lubricated by lubricating oil (grease) separately, and therefore not affected by the medium.With a pair of synchronous gears drive between the two screw, the screw does not contact between tooth surfaces, and leave a small gap, the impurities in medium can not be directly on the screw tooth surface wear (except wash).Except a few small displacement pump (below 2 w. W4.0), generally contain flow relief valve on the pump body, when the discharge pressure exceeds rating, has certain protective effect.There are two kinds of the direction of the import and export on the pump body, one for level, level;Secondly, level, vertical;User can choose according to their own needs. ●性能參(cān)數的選擇： 1. 流量 Q ： 作(zuò)為容積式泵，影響(xiang)雙螺杆泵流量的(de)因素主要有轉速(su) n ，壓力 p ，以及介質的(de)粘度 v 。The selection of performance parameters: 1. The flow Q: As a positive displacement pump, double screw pump flow effects are the major factors of rotational speed n, pressure p, and the medium viscosity v. 1.1 轉速 n 的影響(xiang)： 螺杆泵(高溫雙螺(luó)杆泵,大流量雙螺(luó)杆泵)在工作時，兩(liang)螺杆及襯套之間(jiān)形成密封腔，螺杆(gan)每轉動一周便由(yóu)進口向出口移出(chū)一個密封腔，即一(yi)個密封腔的體積(jī)的液體被排出去(qù)。理想狀态下，泵内(nèi)部無洩漏，那麼泵(beng)的流量與轉速成(cheng)正比。即： Qth=n*q n---- 轉速； q---- 理論(lun)排量，即泵每轉一(yī)周所排出的液體(ti)體積； Qth---- 理論排量。The influence of the rotational speed n 1.1:Screw pump (high temperature double screw pump, large flow of double screw pump) at work, the sealed cavity formed between the two screw and bushing, the screw rotation per week will remove a sealed cavity from import to export, that is, a sealed cavity volume of liquid is out.Internal leak-off ideally, pump, the pump flow rate is proportional to the speed.Namely: Qth q = n * n - speed;Q - the theory of displacement, the pump discharge by turn every week liquid volume;Qth - the theory of displacement. 1.2 壓(yā)力 △ P 的影響： 雙螺杆(gan)泵(高溫雙螺杆泵(bèng),大流量雙螺杆泵(beng))實際工作過程中(zhong)，其内部存在洩漏(lòu)，也稱滑移量。由于(yu)泵的密封腔有一(yi)定的間隙，且密封(feng)腔前、後存在壓差(chà) △ P ，因此，有一部分液(ye)體回流，即存在洩(xie)漏，洩漏量用 △ Q 表示(shi)，則 Q=Qth- △ Q.顯而易見，随着(zhe)密封腔前、後壓差(chà) △ P 升高，洩漏量 △ Q 逐漸(jiàn)增大。對于不同型(xíng)線和結構，影響大(dà)小也各不相同。The influence of pressure delta P 1.2: Double screw pump (high temperature double screw pump, large flow of double screw pump) in the process of the actual work, its internal is leaking, also known as slippage.Due to pump seal chamber has a certain gap, and seal chamber before and after the differential delta P, as a result, some liquid reflux, is leakage, leakage in delta Q, Q = Qth - delta Q. Obviously, as the seal chamber pressure difference before and after the delta P increases, leakage delta Q increases gradually.For different lines and structure, effect size are different. 1.3 粘(zhān)度 v 的影響：試想：将(jiang)清水和粘稠的漿(jiāng)糊以相同的體積(ji)從漏鬥式的容器(qi)中洩漏出去。顯然(ran)水比漿糊要洩漏(lou)得快。同理，對于雙(shuang)螺杆泵，粘度大的(de)流體比粘度小的(de)液體的洩漏要小(xiǎo)，洩漏量與介質粘(zhan)度有一定的比例(li)關系。綜上所述，要(yào)綜合地考慮以上(shàng)各種因素，通過一(yī)系列的計算才能(néng)精确地知道泵的(de)實際流量是否符(fú)合工況要求。The influence of the viscosity of 1.3 v: just think: will clear water and the volume of the sticky paste with the same leak out from the funnel type of container.Obviously water leak faster than paste.Similarly, for double screw pump, the viscosity of the fluid is larger than that of low viscosity liquid leakage, leakage and the proportion of medium viscosity have a certain relationship.Above all, should be synthetically considered the above factors, through a series of calculations to accurately know the actual flow of the pump is in accordance with the working condition requirements. 2. 壓力(lì) △ P ： 與離心泵不同，雙(shuang)螺杆泵的工作壓(yā)力 △ Unlike centrifugal pump, double screw pump working pressure delta P is determined by export load, namely export resistance to decide.Export resistance is matching with the pump outlet pressure, export the resistance, the greater the pressure of work.If want to know the pressure, you may need to drag on exports by the knowledge of fluid mechanics calculations. 3. 軸功率 N ： Double screw pump (high temperature double screw pump, large flow of double screw pump) of the shaft power is divided into two parts, i.e., the Nth, hydraulic power, namely of liquid pressure energy;Nr - friction power. 摩擦(cā)功率是由于運動(dòng)部件的摩擦而消(xiao)耗的那部分功率(lǜ)。這些摩擦功率顯(xian)然是随着工作壓(yā)差的增加而增加(jiā)的，并且介質粘度(dù)的增加也會引起(qi)液體摩擦功率的(de)增加。To determine the pressure and flow rate, the hydraulic power is certain, so the influence of shaft power factor for the friction ratio of Nr.Friction power is due to the friction in the moving parts and the part of the power consumption.The friction power is obviously increases with the increase of the pressure difference, and the increase of viscosity of medium can also cause the liquid friction power increases. 由此，泵的軸(zhou)功率除了液壓功(gōng)率外，其中摩擦功(gong)率随介質粘度及(ji)工作壓力而增加(jia)，因此在選擇配套(tao)電機時，介質的粘(zhān)度也是一個非常(cháng)重要的參考數據(ju)。尤其在輸送高粘(zhan)度介質時，需要作(zuò)比較精确的計算(suan)。Thus, the pump shaft power in addition to the hydraulic power, the friction power increases with medium viscosity and the pressure of work, therefore, when choosing motor medium viscosity is also a very important reference data.Especially in transport high viscosity medium, the need for accurate calculation. 在計算功率後，選(xuan)擇配套電機時應(ying)遵照樣本表格中(zhōng)所規定的有關規(guī)定。 N(KW) N≤10 10 < N≤50 N > 50 N > 100 K 1.5 1.25 1.15 1.1 Nm=N.K Nm---- 電機功率 N---- 軸功(gōng)率 K---- 功率儲備系數(shu) 4. 吸上性能的計算(suàn)及選擇 ：泵(高溫雙(shuang)螺杆泵,大流量雙(shuang)螺杆泵)工作分為(wei)以下幾個階段： 4. On the absorption performance of calculation and selection: pump (high temperature double screw pump, large flow of double screw pump) work is divided into the following stages: 4.1 吸(xī)入，此時液體連續(xu)不斷地沿吸入管(guan)道移動；the liquid move continuously along the suction piping; 4.2 旋轉的螺(luó)杆把能量傳給工(gōng)作液體；rotary screw liquid energy to work; 5. 汽蝕餘(yu)量的計算： The calculation of NPSH: 泵的汽(qì)蝕餘量 NPSHr 與泵的轉(zhuǎn)速 n ，導程 h 以及泵所(suo)輸送介質的粘度(du) v 等因素都有關系(xì)，對我廠引進的 Bornemann 雙(shuāng)螺杆泵用以下公(gong)式計算： NPSHr=(1.5+0.253VF 1.84345+0.0572VF 1.55)*v 0.4146 VF---- 軸向流速(sù)， VF=n*h/60(m/s) ； n---- 轉速 (r/min) ； h---- 導程 (m) ； v---- 工作粘(zhān)度 (°E) 。 由此可見，泵的(de) NPSHr 是随 VF ， v 的增大而增(zeng)大。因此在吸入條(tiáo)件不好的情況下(xia)，宜選擇小導程的(de)雙螺杆泵。這在選(xuǎn)型時是很重要的(de)。 Pump NPSH NPSHr and pump speed n, lead h and the medium viscosity v pump etc have relations, to my factory to introduce Bornemann double screw pump with the following formula: NPSHr = 1.5 (1.5 + 0.253 + 0.0572 0.253 VF VF) * v 0.4146 VF - axial velocity, VF = n * h / 60 (m/s);N - speed (r/min);H - lead (m);V - work viscosity (° E).Pump NPSHr is, therefore, with the VF, v increases.So in the case of suction condition is bad, should choose small lead of double screw pump.This when selection is very important. 5.1 裝置汽蝕餘量 NPSHa 的(de)計算，這裡不再闡(chan)述。 5.2 想要保持泵正(zheng)常工作，即不發生(sheng)汽蝕、振動等問題(ti)，必須保證以下條(tiao)件： NPSHa > NPSHr 這即是泵的吸(xī)入條件。to keep the normal work of the pump, that is, do not produce the problem such as cavitation, vibration, must ensure that the following conditions: NPSHa > NPSHr this is pump suction conditions. 6. 雙螺杆泵(beng) 選擇不(bu)同的轉速常牽涉(shè)以下問題：Choose a different speed often involve the following questions: 6.1 通過選(xuǎn)擇合适的泵轉速(sù)，以達到适當的性(xìng)能參數如流量等(děng)。 6.2 随着粘度的不同(tóng)，泵的轉速亦應有(yǒu)所改變。as the viscosity, the speed of the pump should also be changed. 對于 Boremann 雙螺(luó)杆泵，粘度的變化(huà)是決定轉速的主(zhu)要條件，随着粘度(dù)的增大，允許轉速(su)也越低。For Boremann double screw pump, the change of viscosity is the main condition of ion speed, with the increase of viscosity, allow rotation speed is lower. 轉速的選(xuan)擇實質也是吸上(shang)性能的問題，尤其(qí)是在高粘度的情(qíng)況下，如果轉速選(xuǎn)得過高，就會引起(qi)吸入不足，從而産(chǎn)生噪音和振動等(deng)問題。因此務必遵(zūn)照有關原則選擇(zé)轉速。Speed selection essence is also on the absorption performance problems, especially in the case of high viscosity, if speed selected too high, it will cause insufficient suction, so as to produce the problem such as noise and vibration.So be sure to follow relevant principles to choose speed. |
