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 position 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 method. (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.

運行數據：出口直徑：DN=80～800mm流量：50～11600m3/h(額定點)揚程：H＝7.6～200m(額定點)許用工作壓力：≤2.5MPa許用試驗壓力：≤3.75MPa介質：清水或物理化學性質類似于清水的其它液體(固體顆�！�80mg/L)。溫度：≤105°C水力經優化設計三水力模型，不僅使泵具有優異的水力性能，并且沒有軸向力(理論上)這一困擾水泵特別是大型水泵運行的難題。泵體、泵蓋、葉輪經精密鑄造，過流表面光滑提高了泵的抗汽蝕性能和效率。密封根據輸送介質或用戶要求采用填料密封或機械密封，不受轉向限制。對于填料密封，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

不可忽略對中開泵可靠性方面的要求，總之通過我們的努力要獲得一款效率高汽蝕性能好，運行可靠穩定的好泵。中開泵主要適用于輸送不含固體顆粒的介質。因此這種泵可以在石油，化工以及電力等行業進行應用，比如說在石化中延遲焦化，火電廠中的中型鍋爐給水等。這種類型的泵在維護方面非常的方便，因此在相關的行業中得到了廣泛的應用。由于泵內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。目前國內中開泵中多數型號的效率一般在70-80％左右，少數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存在的能量損失，這些損失主要是機械損失，水力損失和容積損失。機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的清水或理化性質類似于水的液體。適用于自來水廠、泵站、電站、空調循環用水、采暖用熱水循環、工業供水系統、消防系統、船舶、煉油工業(一般性液體)等輸送液體的場合。

產品特點：

1、內置式密封潤滑結構：泵內置式密封潤滑結構，密封循環水對泵密封系統的潤滑、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筋，內置式密封潤滑結構使泵整體結構渾然一體，靈活的結構設計使泵更加精美大方。  

3、率：采用CFD計算流體動力學，分析計算出泵內壓力分布和速度分布關系、優化泵的流道設計，確保泵有的水力形線，提高了泵的效率。泵體采用雙流道設計，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，以延長軸承和機械密封的使用壽命。軸為全封結構，確保了不與介質接觸，不銹蝕，使用壽命長。  

6、雙蝸殼：高揚程泵采用雙蝸殼結構，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+泵揚程≤2.5MPa。根據泵殼承受的壓力，泵體和泵蓋材質采用灰口鑄鐵(1.6MPa)、球墨鑄鐵(2.0MPa)、鑄鋼(2.5MPa)。在訂貨時敬請注明泵的承壓情況或材質。

2．介質：溫度≤105°C的清水或物理化學性質類似清水的其它液體(固體顆�！�80mg/L)。 軸承1、采用油脂潤滑的封閉式滾動軸承，維護簡單，運行時間長；2、配備恒定油位的油杯，也可用稀油潤滑；

3、選用進口(SKF、NSK、NTN)高質量軸承，運行平穩，噪音低，使用壽命長。 結構 結構緊湊、穩定性好。

S、SA系列雙吸中開泵為泵殼中開結構，進出口均在泵體上，檢修時只需吊出泵蓋，轉子部件便可移出進行檢修作業，而不需拆卸管路，十分方便。 根據需要電動機(驅動機)可以在左端也可在右端，方便現場安裝。結構上縮短轉子部件軸向尺寸，軸的鋼性更好，運行更穩定可靠。設有泵體密封環，而葉輪密封環為可選用件。密封環磨損后可以更換，減少了運行維護費用。

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-設計點揚程(m)

　　　A-葉輪外徑改變標志

功率選擇興衰，本質選擇勝敗”的政策教訓下，不斷開荒跋涉，立異打開。出售網點輻射全國各大城市，產品行銷全國各省，市，自治區，并出口東南亞等國。企業以一流的處理。質量選擇命運企業在“產品選擇出路一流的產品，一流的效能贏得了廣大用戶的信賴和好評。

中小型企業會越來越多，產品迭代速度也會越來越快。關鍵工序核心裝備數控化率超過85%；區域兩化融合發展水平綜合指數達115，產業主要環節信息化應用達到國內同行業先進水平，推動公共平臺建設，整合生產以及研發設計、集成、監測認證、專業外包、市場開拓等資源，連接產學研政各方力量，近年來，整個建材家居行業都面臨著原材料上漲、市場競爭加強以及消費需求變化的多重考驗。近年來，隨著五金行業發展迅速，市場品牌眾多、競爭激烈，此時品牌建設成為了五金企業發展爭奪的又一陣地。