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水利工程排灌泵@朝陽(yáng)水利工程排灌泵@水利工程排灌泵14SH-19

Sometimes due to improper selection of pumps, so that the pump is operating under large flow, easy to produce steam

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(固體顆粒≤80mg/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(méi)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(guò)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(duì)于填料密封，有足夠的空間用于更換填料。jdhuiquan4.13

水利工程排灌泵@朝陽(yáng)水利工程排灌泵@水利工程排灌泵14SH-19

At present, the solution is to regularly replace lubricating oil, wear parts and regular cleaning of the hydraulic cavity. Strict mid-open pump operating procedures. Pump start-up and parking should be strictly in accordance with the requirements of the operation. At the start, 0 output pump, when the pump outlet has a certain pressure, the voltage regulator can be filled with nitrogen. Avoid the diaphragm deformation caused by nitrogen filling, prevent the diaphragm rupture, improve the pump output, to proceed slowly, when stopping the pump, should also slowly reduce the output of the pump. Focus on checking lubricant oil level, machine pump sound, outlet pressure, nitrogen buffer tank pressure and so on. Regular replacement of the pump body diaphragm, nitrogen buffer tank diaphragm, in order to effectively prevent the simultaneous damage of two pumps caused by the occurrence of catalyst suspension. The mechanical seal is also called the End seal, which produces the appropriate compaction force on the contact surface of the rotating dynamic ring and static ring by the pressure of the spring and the sealing medium, so that the two ends are tightly fitted. The end side maintains a very thin layer of oil film, the media through the resistance is very large, to prevent liquid leakage.

產(chǎn)品概述：S、SA系列雙吸中開(kāi)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(lái)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(chǎng)合。

產(chǎn)品特點(diǎn)：

1、內(nèi)置式密封潤(rùn)滑結(jié)構(gòu)：泵內(nèi)置式密封潤(rùn)滑結(jié)構(gòu)，密封循環(huán)水對(duì)泵密封系統(tǒng)的潤(rùn)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(rùn)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(dòng)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(guò)流部采用樹(shù)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(kāi)泵效率比一般雙吸泵高3～5％。  

4、平衡精度高：轉(zhuǎn)子部件動(dòng)平衡精度為G1。0級(jí)。  

5、軸：軸短且剛性好，增加軸徑，以延長(zhǎng)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(zhǎng)。  

6、雙蝸殼：高揚(yáng)程泵采用雙蝸殼結(jié)構(gòu)，減輕了徑向力。

水利工程排灌泵@朝陽(yáng)水利工程排灌泵@水利工程排灌泵14SH-19

Side can be started. Pump commissioning should meet the following requirements: The pump should be in the specified speed and operating range of operation, continuous commissioning time should not be less than 30min, the pump water supply should be normal, water temperature and water supply pressure should be in line with the requirements of the manufacturer; The temperature rise of the bearing should not be higher than 30 ℃, and the connection should be strict. 4 No leakage phenomenon, there should be no abnormal sound and vibration in operation, after the commissioning, should be released in the pump water, and then use water to rinse the pump clean. S series of open pumps can be basically supplied to factories, cities, power stations, water conservancy projects and so on can be used as drainage or feed pumps, but also for farmland irrigation. For the transport of water without solid particles or physical, chemical properties similar to water other liquids, the transmission of the medium temperature of 0℃~80℃, allowing the import pressure. In the water treatment industry, the S-series Open pump is an extremely important equipment. The Operation safety of the open pump in the S series directly affects the normal operation of the water treatment process.

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(qǐng)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�！�80mg/L)。 軸承1、采用油脂潤(rùn)滑的封閉式滾動(dòng)軸承，維護(hù)簡(jiǎn)單，運(yùn)行時(shí)間長(zhǎng)；2、配備恒定油位的油杯，也可用稀油潤(rùn)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(zhǎng)。 結(jié)構(gòu) 結(jié)構(gòu)緊湊、穩(wěn)定性好。

S、SA系列雙吸中開(kāi)泵為泵殼中開(kāi)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(dòng)機(jī)(驅(qū)動(dòng)機(jī))可以在左端也可在右端，方便現(xiàn)場(chǎng)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(hào)意義：

例如：300S58A

　　　300-泵入口直徑(mm)

　　　S-單級(jí)雙吸水平中開(kāi)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

雙吸離心泵等，產(chǎn)品有自己的規(guī)劃特色與風(fēng)格，在機(jī)電職業(yè)具有較高的諾言和知名度。特別是咱們的潛水泵新產(chǎn)品在規(guī)劃理念上更是異乎尋常，大大增加了高揚(yáng)程。

王福喜介紹，此前藏品中就有當(dāng)年海鷗手表廠塊手表時(shí)使用的銑床。解決好馬桶蓋、凈化器等類似問(wèn)題，家電企業(yè)需要進(jìn)行改革，需要進(jìn)行的‘供給側(cè)結(jié)構(gòu)性改革’，2016五金展已于昨日在（上海）會(huì)展中心落幕，作為全球五金行業(yè)的第二大展，這場(chǎng)備受行業(yè)關(guān)注的五金展不負(fù)眾望，2016年NB-IOT窄帶物聯(lián)網(wǎng)與LoRa技術(shù)飛速發(fā)展，在各領(lǐng)域都取得了不錯(cuò)的成就。經(jīng)濟(jì)改革與發(fā)展依靠裝備業(yè)，裝備業(yè)的發(fā)展依賴機(jī)床行業(yè)，機(jī)床行業(yè)依靠我國(guó)這么多于國(guó)內(nèi)的機(jī)床行業(yè)巨頭，