礦用離心泵@隆堯縣礦用離心泵@礦用離心泵350S26
故效率總是小于1的。目前國內(nèi)中開泵中多數(shù)型號的效率一般在70-80%左右,少數(shù)大流量型號的效率在90%左右。影響中開泵效率的主要原因在于泵內(nèi)存在的能量損失,這些損失主要是機(jī)械損失,水力損失和容積損失。機(jī)械損失主要是葉輪外表面與液體的磨擦損失(即圓盤摩擦損失)以及離心泵軸承,軸封上的摩擦損失,水力損失主要是液體在泵內(nèi)運(yùn)動速度和方向的變化引起的沖擊損失。中開泵效率是指泵的有效功率和軸功率的比值旋渦損失等,液體與泵內(nèi)各流道壁面的磨擦損失以及液體運(yùn)動的內(nèi)部磨擦損失,容積損失主要是泵內(nèi)高壓液體向低壓區(qū)泄露回流造成的損失,包括密封環(huán)泄漏損失,平衡機(jī)構(gòu)泄漏損失和級間泄漏損失。通過不同可以使中開泵的效率和汽蝕性能得到很好的提升當(dāng)然在進(jìn)行效率和汽蝕性能改造的同時(shí)。
運(yùn)行數(shù)據(jù):出口直徑:DN=80~800mm流量:50~11600m3/h(額定點(diǎn))揚(yáng)程:H=7.6~200m(額定點(diǎn))許用工作壓力:≤2.5MPa許用試驗(yàn)壓力:≤3.75MPa介質(zhì):清水或物理化學(xué)性質(zhì)類似于清水的其它液體(固體顆?!?0mg/L)。溫度:≤105°C水力經(jīng)優(yōu)化設(shè)計(jì)三水力模型,不僅使泵具有優(yōu)異的水力性能,并且沒有軸向力(理論上)這一困擾水泵特別是大型水泵運(yùn)行的難題。泵體、泵蓋、葉輪經(jīng)精密鑄造,過流表面光滑提高了泵的抗汽蝕性能和效率。密封根據(jù)輸送介質(zhì)或用戶要求采用填料密封或機(jī)械密封,不受轉(zhuǎn)向限制。對于填料密封,有足夠的空間用于更換填料。jdhuiquan4.13
礦用離心泵@隆堯縣礦用離心泵@礦用離心泵350S26
Pipeline installation should try to overcome the phenomenon of too much elbow, the elbow radius of the pipe should be larger. (3) Check whether the packing seal leaks too much or too little, especially the inlet pipe. Pipe length should not be too long. (2) When using bending pipe, the straight pipe part before and after the pump import and export should be at least 5~10 times the diameter of the pipe. (3) In order to prevent the reversal of parking, water hammer phenomenon, in the pump pressure out pipe should be equipped with a check valve, in order to adjust the flow, in the pump pressure out of the pipe should be equipped with a gate valve; the check valve is installed between the pump and the gate valve. (4) After the piping is installed, further check the neutral of the pump and motor couplings. (5) Install all pipes, such as water seal pipe parts, cooling pipe parts, etc. Each pipe should be smooth, sealing should be strict. (6) The pressure gauge joint parts are installed in the pump inlet and outlet flange all the open pump is left with the installation pressure gauge screw hole, screwed down for the pressure gauge joint parts of the wire plugging, according to the technical inbation provided by the pump factory, select the appropriate pressure gauge and vacuum meter installed in the pump outlet and import respectively.
產(chǎn)品概述:S、SA系列雙吸中開泵,主要供輸送溫度不高于105°C的清水或理化性質(zhì)類似于水的液體。適用于自來水廠、泵站、電站、空調(diào)循環(huán)用水、采暖用熱水循環(huán)、工業(yè)供水系統(tǒng)、消防系統(tǒng)、船舶、煉油工業(yè)(一般性液體)等輸送液體的場合。
產(chǎn)品特點(diǎn):
1、內(nèi)置式密封潤滑結(jié)構(gòu):泵內(nèi)置式密封潤滑結(jié)構(gòu),密封循環(huán)水對泵密封系統(tǒng)的潤滑、沖洗更為直接、有效。
2、外形美觀:直線型的外觀并在泵蓋上附加強(qiáng)筋,內(nèi)置式密封潤滑結(jié)構(gòu)使泵整體結(jié)構(gòu)渾然一體,靈活的結(jié)構(gòu)設(shè)計(jì)使泵更加精美大方。
3、率:采用CFD計(jì)算流體動力學(xué),分析計(jì)算出泵內(nèi)壓力分布和速度分布關(guān)系、優(yōu)化泵的流道設(shè)計(jì),確保泵有的水力形線,提高了泵的效率。泵體采用雙流道設(shè)計(jì),以減小徑向力。泵體、泵蓋、葉輪等過流部采用樹脂砂板模造型,保證了外觀及流道尺寸以及泵的水力效率。S、SA系列雙吸中開泵效率比一般雙吸泵高3~5%。
4、平衡精度高:轉(zhuǎn)子部件動平衡精度為G1。0級。
5、軸:軸短且剛性好,增加軸徑,以延長軸承和機(jī)械密封的使用壽命。軸為全封結(jié)構(gòu),確保了不與介質(zhì)接觸,不銹蝕,使用壽命長。
6、雙蝸殼:高揚(yáng)程泵采用雙蝸殼結(jié)構(gòu),減輕了徑向力。
礦用離心泵@隆堯縣礦用離心泵@礦用離心泵350S26
Pipeline installation should try to overcome the phenomenon of too much elbow, the elbow radius of the pipe should be larger. (3) Check whether the packing seal leaks too much or too little, especially the inlet pipe. Pipe length should not be too long. (2) When using bending pipe, the straight pipe part before and after the pump import and export should be at least 5~10 times the diameter of the pipe. (3) In order to prevent the reversal of parking, water hammer phenomenon, in the pump pressure out pipe should be equipped with a check valve, in order to adjust the flow, in the pump pressure out of the pipe should be equipped with a gate valve; the check valve is installed between the pump and the gate valve. (4) After the piping is installed, further check the neutral of the pump and motor couplings. (5) Install all pipes, such as water seal pipe parts, cooling pipe parts, etc. Each pipe should be smooth, sealing should be strict. (6) The pressure gauge joint parts are installed in the pump inlet and outlet flange all the open pump is left with the installation pressure gauge screw hole, screwed down for the pressure gauge joint parts of the wire plugging, according to the technical inbation provided by the pump factory, select the appropriate pressure gauge and vacuum meter installed in the pump outlet and import respectively.
工作條件:
1.許用工作壓力為2.5MPa;即泵入口壓力+泵揚(yáng)程≤2.5MPa。根據(jù)泵殼承受的壓力,泵體和泵蓋材質(zhì)采用灰口鑄鐵(1.6MPa)、球墨鑄鐵(2.0MPa)、鑄鋼(2.5MPa)。在訂貨時(shí)敬請注明泵的承壓情況或材質(zhì)。
2.介質(zhì):溫度≤105°C的清水或物理化學(xué)性質(zhì)類似清水的其它液體(固體顆粒≤80mg/L)。 軸承1、采用油脂潤滑的封閉式滾動軸承,維護(hù)簡單,運(yùn)行時(shí)間長;2、配備恒定油位的油杯,也可用稀油潤滑;
3、選用進(jìn)口(SKF、NSK、NTN)高質(zhì)量軸承,運(yùn)行平穩(wěn),噪音低,使用壽命長。 結(jié)構(gòu) 結(jié)構(gòu)緊湊、穩(wěn)定性好。
S、SA系列雙吸中開泵為泵殼中開結(jié)構(gòu),進(jìn)出口均在泵體上,檢修時(shí)只需吊出泵蓋,轉(zhuǎn)子部件便可移出進(jìn)行檢修作業(yè),而不需拆卸管路,十分方便。 根據(jù)需要電動機(jī)(驅(qū)動機(jī))可以在左端也可在右端,方便現(xiàn)場安裝。結(jié)構(gòu)上縮短轉(zhuǎn)子部件軸向尺寸,軸的鋼性更好,運(yùn)行更穩(wěn)定可靠。設(shè)有泵體密封環(huán),而葉輪密封環(huán)為可選用件。密封環(huán)磨損后可以更換,減少了運(yùn)行維護(hù)費(fèi)用。
五、型號意義:
例如:300S58A
300-泵入口直徑(mm)
S-單級雙吸水平中開式離心清水泵
58-設(shè)計(jì)點(diǎn)揚(yáng)程(m)
A-葉輪外徑改變標(biāo)志
管道離心泵,多級離心泵,氟塑料離心泵等。標(biāo)準(zhǔn)化產(chǎn)品處理質(zhì)量保證 質(zhì)量公司創(chuàng)建于2008年c. 完善老練的工藝流程d.具有標(biāo)準(zhǔn)化的產(chǎn)品現(xiàn)在我公司正進(jìn)一步加強(qiáng)員工的技術(shù)水平的前進(jìn)。繼續(xù)改善為顧客供給滿意的產(chǎn)品和優(yōu)質(zhì)的效力 打造泵工作產(chǎn)品河北會泉泵業(yè)有限公司供給的泵類種類有各類離心泵例如:不銹鋼離心泵,臥式離心泵。
在部分領(lǐng)域和地區(qū),業(yè)結(jié)構(gòu)仍不盡合理,一些老大難問題待解。此外,一個(gè)晶體硅光伏組件往往重達(dá)十幾公斤,拆開之后,玻璃和鋁邊框就占據(jù)了80%以上的重量,值錢的導(dǎo)電銀漿則只有6克左右,如果將工程機(jī)械行業(yè)、電子和家電等行業(yè)需求的機(jī)器人計(jì)算在內(nèi),需求量更大。這一點(diǎn)非常重要,無論是否是低成本,精度都已成為一個(gè)差異化優(yōu)勢。對于中小型門窗品牌企業(yè)來說,就是要通過對消費(fèi)者市場的研究,出這樣一種獨(dú)特的核心消費(fèi)利益,并重點(diǎn)訴求這一核心消費(fèi)利益,