水利工程泵@井陘礦水利工程泵@水利工程泵150口徑
Suction tank should be easy to clean before. (4) Considering the landing of the water surface, the b of the suction pipe end should have enough submerged depth to prevent the intake from the whirlpool. (5) Before installation, to carefully check whether the bottom valve is flexible, at the same time in order to facilitate inspection and maintenance, to consider a good installation b. (6) The gate valve installed on the inlet side shall be installed in a horizontal direction or tilted downwards to avoid the accumulation of air. Import Side Gate valve In addition to inspection, switching outside, must be fully open. At the same time should try not to let the air from the sealing sleeve area. (7) The bending part is as smooth as possible, reducing the number of elbows, and should try to avoid being set close to the inlet of the pump. (8) When there is a different diameter tube, in order not to allow air to accumulate, should use eccentric type of pipe. (9) For parallel operation of the pump inlet pipe, it is advisable to use a separate water inlet pipe. If the use of direct to the common mother tube, easy to occur the imbalance of import pressure. The drive (motor) drives the impeller to rotate through the pump shaft, and the blade of the impeller drives the liquid to rotate together.
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(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
水利工程泵@井陘礦水利工程泵@水利工程泵150口徑
不可忽略對(duì)中開泵可靠性方面的要求，總之通過(guò)我們的努力要獲得一款效率高汽蝕性能好，運(yùn)行可靠穩(wěn)定的好泵。中開泵主要適用于輸送不含固體顆粒的介質(zhì)。因此這種泵可以在石油，化工以及電力等行業(yè)進(jìn)行應(yīng)用，比如說(shuō)在石化中延遲焦化，火電廠中的中型鍋爐給水等。這種類型的泵在維護(hù)方面非常的方便，因此在相關(guān)的行業(yè)中得到了廣泛的應(yīng)用。由于泵內(nèi)的各種損失泵的有效功率總是小于軸功率，故效率總是小于1的。目前國(guó)內(nèi)中開泵中多數(shù)型號(hào)的效率一般在70-80％左右，少數(shù)大流量型號(hào)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。
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(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(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。
水利工程泵@井陘礦水利工程泵@水利工程泵150口徑
In order to achieve the purpose of sealing, while the dynamic ring and static ring has a lubrication effect. The medium-open pump is regularly inspected during operation. The characteristics of the use of mechanical seals in medium-open pumps 1, the main advantage of the mechanical seal of the medium open pump is that the seal is reliable in a long life cycle, the leakage is very few, the effect is long, generally can use about 5 years, the maintenance cycle is long. However, the mechanical seal structure is complex, the manufacturing and installation precision is high, the lattice is high, the technical request to the maintenance personnel is high. Therefore, it is very important to ensure the reliable operation of mechanical seals and extend the service life of mechanical seals. Of course, the price sealed with seasoning is cheap, the technical requirements are relatively low. The problem that the mechanical seal of medium open pump is easy to occur in the process of use, the main problem that the mechanical seal is easy to occur is the leakage amount is very poor and the temperature is too high. Touch the mechanical seal cover with your hand, and if you can't stay on it, it means the temperature is too high. Leakage per side should not exceed 60 drops of/min, if linear flow, it indicates that the amount of leakage is too large, can determine whether to observe the operation;
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?！?0mg/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(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
功率選擇興衰，本質(zhì)選擇勝敗”的政策教訓(xùn)下，不斷開荒跋涉，立異打開。出售網(wǎng)點(diǎn)輻射全國(guó)各大城市，產(chǎn)品行銷全國(guó)各省，市，自治區(qū)，并出口東南亞等國(guó)。企業(yè)以一流的處理。質(zhì)量選擇命運(yùn)企業(yè)在“產(chǎn)品選擇出路一流的產(chǎn)品，一流的效能贏得了廣大用戶的信賴和好評(píng)。
中小型企業(yè)會(huì)越來(lái)越多，產(chǎn)品迭代速度也會(huì)越來(lái)越快。關(guān)鍵工序核心裝備數(shù)控化率超過(guò)85%；區(qū)域兩化融合發(fā)展水平綜合指數(shù)達(dá)115，產(chǎn)業(yè)主要環(huán)節(jié)信息化應(yīng)用達(dá)到國(guó)內(nèi)同行業(yè)先進(jìn)水平，推動(dòng)公共平臺(tái)建設(shè)，整合生產(chǎn)以及研發(fā)設(shè)計(jì)、集成、監(jiān)測(cè)認(rèn)證、專業(yè)外包、市場(chǎng)開拓等資源，連接產(chǎn)學(xué)研政各方力量，近年來(lái)，整個(gè)建材家居行業(yè)都面臨著原材料上漲、市場(chǎng)競(jìng)爭(zhēng)加強(qiáng)以及消費(fèi)需求變化的多重考驗(yàn)。近年來(lái)，隨著五金行業(yè)發(fā)展迅速，市場(chǎng)品牌眾多、競(jìng)爭(zhēng)激烈，此時(shí)品牌建設(shè)成為了五金企業(yè)發(fā)展?fàn)帄Z的又一陣地。
