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離心泵的基本構造是由六部分組成的，分別是：葉輪，泵體，泵軸，軸承，密封環(huán)，填料函。
Basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump, pump shaft, bearing, seal ring, stuffing box.
1、 葉輪是離心泵的核心部分，它轉速高出力大，葉輪上的葉片又起到主要作用，葉輪在裝配前要通過靜平衡實驗。葉輪上的內外表面要求光滑，以減少水流的摩擦損失。
1, centrifugal impeller is the core of its rotational speed above the force, on the impeller blades also play a major role in the assembly before the impeller through the static equilibrium experiments. Impeller on the inside and outside smooth surface of requirements to reduce the flow friction loss.
2、 泵體也稱泵殼，它是水泵的主體。起到支撐固定作用，并與安裝軸承的托架相連接。
2, also known as pump pump shell, which is the main water pump. Play a role in supporting the fixed and with the installation of the bearing bracket connected.
3、 泵軸的作用是借聯(lián)軸器和電動機相連接，將電動機的轉距傳給葉輪，所以它是傳遞機械能的主要部件。
3, pump shaft coupling, and the effect is to use electric motors connected to the motor torque to pass the impeller, it is the transmission of mechanical energy of the main components.
4、 軸承是套在泵軸上支撐泵軸的構件，有滾動軸承和滑動軸承兩種。滾動軸承使用牛油作為潤滑劑加油要適當一般為2/3～3/4的體積太多會發(fā)熱，太少又有響聲并發(fā)熱！滑動軸承使用的是透明油作潤滑劑的,加油到油位線。太多油要沿泵軸滲出并且漂*，太少軸承又要過熱燒壞造成事故！在水泵運行過程中軸承的溫度高在85度一般運行在60度左右，如果高了就要查找原因（是否有雜質，油質是否發(fā)黑，是否進水）并及時處理！
4, the bearings are set on the support shaft in the shaft components, there are two kinds of rolling bearings and plain bearings. Rolling the use of butter as a lubricant should be appropriate fuel is generally 2 / 3 3 / 4 size too much would be hot, too little, there are sound and heat! Sliding bearings using a transparent oil as lubricant, and fuel to the oil level line. Too much oil to leak along the shaft and drift *, too little overheated bearings and also burned causing the accident! In the water pump bearings during operation the maximum temperature of 85 degrees in the general run of about 60 degrees, if the higher should find out the reasons (whether there is contamination, the oil quality is black, is water) and a timely manner!
5、 密封環(huán)又稱減漏環(huán)。葉輪進口與泵殼間的間隙過大會造成泵內高壓區(qū)的水經(jīng)此間隙流向低壓區(qū)，影響泵的出水量，效率降低！間隙過小會造成葉輪與泵殼摩擦產生磨損。為了增加回流阻力減少內漏，延緩葉輪和泵殼的所使用壽命，在泵殼內緣和葉輪外援結合處裝有密封環(huán)，密封的間隙保持在0.25～1.10mm之間為宜。
5, sealing ring is also called by leakage ring. Import and pump impeller gap between the shell had caused the General Assembly, the water pump high-pressure zone flows through this gap area of low pressure affecting the pump out the water, reducing efficiency! Space is too small will cause the impeller and pump casing friction wear. In order to increase the return to reduce the internal leakage resistance and delay of the impeller and pump casing life, and the impeller in the pump shell edge junction with foreign aid seal ring, sealing the gap remained at between 0.25 ~ 1.10mm is appropriate.
6、 填料函主要由填料，水封環(huán)，填料筒，填料壓蓋，水封管組成。填料函的作用主要是為了封閉泵殼與泵軸之間的空隙，不讓泵內的水流不流到外面來也不讓外面的空氣進入到泵內。始終保持水泵內的真空！當泵軸與填料摩擦產生熱量就要靠水封管住水到水封圈內使填料冷卻！保持水泵的正常運行。所以在水泵的運行巡回檢查過程中對填料函的檢查是特別要注意！在運行600個小時左右就要對填料進行更換。
6, stuffing mainly by the packing, seal ring, filling cylinders, packing gland, water-sealed tube. The role of the stuffing pump is mainly to close the gap between the shell and the shaft, to prevent the flow pump does not flow to the outside, it does not allow outside air into the pump. Always maintain the vacuum inside the pump! When the pump shaft and the packing heat generated by the friction depends on water-sealed tube to live on the water to seal circle to fill cool! To maintain the normal operation of pumps. So check the pump to run during the tour of the stuffing of the check is paying particular attention to! In the run 600 hours or so should be replaced on the fill.
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