農(nóng)用工程抽水泵@臨西縣農(nóng)用工程抽水泵@農(nóng)用工程抽水泵300S19
Bushing comb, shaft parts using flat keys and round nuts fixed, locking, so that it becomes one, the entire rotor by the two ends of the bearing support. The impeller of the medium open pump transmits the energy of the original motive through the b of centrifugal force to the liquid in the pump, which increases the speed and pressure of the liquid, causes the liquid in the pump to drain out, and the liquid in the inlet pipe is sucked in. The medium open pump impeller is installed in the pump shell and fastened to the pump shaft, and the pump shaft is directly driven by the motor. The pump shell has a liquid connected to the tube. The liquid enters the pump through the bottom valve and tube. The liquid outlet on the pump shell is connected with the discharge pipe. When the speed of the pump is certain, its pressure head, the flow rate is related to the impeller diameter. The shape of the impeller blade of the middle open pump lies in the accord with the flow law. The motion law of liquid in impeller should be studied first. In order to study the flow law of liquid in the impeller, we take the liquid flow in the impeller from the front cover to the back cover to the hard layer, each layer of phase b on a flow surface. The liquid flows only along each layer, and the liquid of the layer and layer does not mix with each other.
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
農(nóng)用工程抽水泵@臨西縣農(nóng)用工程抽水泵@農(nóng)用工程抽水泵300S19
In the event of a major failure, the entire water treatment process will be paralyzed, bringing great inconvenience to the people's lives and production. According to the current analysis of the operation of the pump in the S series, the common faults are: The impeller has been subjected to surface corrosion in the sewage for a long time, the early fatigue fracture of the blades, the wear of the pump body overflow parts, the bending of the pump shaft, the burnout of the motor and the bearing, etc. It is very important to study the operation Safety, through the research of this content, not only improve the safety of the pump, but also improve its service life. And in the process of water treatment work, the use of the system is often changed, if not in accordance with the needs to be met, will affect the normal operation of production, resulting in greater waste. In order to manage effectively, it is necessary to carry out remote monitoring and field control of production system, and in order to improve production efficiency and safety, it is also necessary to detect the key parts of the pump in the S series. Thus, the research of automatic control technology is an important technology development trend.
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(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(dòng)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。
農(nóng)用工程抽水泵@臨西縣農(nóng)用工程抽水泵@農(nóng)用工程抽水泵300S19
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(dòng)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(dòng)機(jī)(驅(qū)動(dòng)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(hào)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
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