原文：
立式自吸泵输送腐蚀性液体的优势： 1、一般离心泵在输送液体时，当液位低于时，便需要灌泵才能出水。为此需在泵进口处安装底阀。时间一长，底阀被腐蚀或被卡位，就需要进行调换或修理，因此使用很不方便。 2、潜水泵一般用于输送清水、河水，而用于酸碱等腐蚀液体输送情况下则易发生马达腐蚀，漏电现象，很不安全。泵被圾堵塞时必须把泵拉上才能清理，很不方便，所以在实际应用中很少使用。 3、于是人们就造出了液下泵来进行低位输送，液下泵解决了低位输送的问题。但由于采用了长轴，加之叶轮有不平衡的径向力，整个轴又为悬臂结构，因此转动时在叶轮端造成了很大的挠度。轴越长，挠度越大。为了解决这一问题，在轴上安装有轴承。但由于整根轴为挠性轴，轴承不断受到单边磨损，磨损量较大，轴承晃动剧烈，磨损速度加快，因此液下泵损坏频率较高。并且轴不宜做得过长，一般均在2米之内。液下泵的轴承是依靠泵输送的介质进行冷却和润滑的。如果一旦泵送的介质没对轴承进行冷藏却和润滑(这种情况在空泵时和进口被杂物堵塞时就会发生)，就会发生烧瓦，甚至烧坏电动机。而液下泵的修理安装是十分麻烦的。特别在输送有腐蚀性介质时，没有起吊工具很难完成。 液下泵解决了低位输送的问题，但它也带来了许多使用中的麻烦。上海帕特泵业制造有限公司引进国外先进技术生产的专利立式自吸泵，是针对液下泵的上述缺点，专门为低位液体输送而设计的。它在地面上可替代长轴液下泵，自吸高度可达8米，在船上可用作船底泵、扫舱泵之用。 一、立式自吸泵替代液下泵的优点： 1、泵整体为立式结构，与相同参数的液下泵相比，重量大大减轻，同时占地亦少。由于轴垂直方向安装，轴封处不易泄露。 2、自吸泵取消了长轴，同时也取消了轴承的问题、使维修同期大大延长，同时也减少了振动。 3、有可能损坏而需要维修的部分均在地面上，给予维修带来了很大的便利。泵的进口仅是一根空心管，不需要底阀。如进口处被圾堵塞，把空心管拉出即可清理，而液下泵则需要整台泵吊出才能清理。 4、液下泵在购买时需确定抽液深度，如果液体深度与泵轴长度不符时，则需另换泵，而立式自吸泵只要配备不同长度的空心管，就可抽送不同深度而不需调换本身。 5、空泵运转仍可维持一段较长时间，以利于发觉并采取措施防止损坏电机，减少误操作而造成的损失，安全性好。 6、液下泵必须安装在液体正上方。本自吸泵既可安装在上方，也可安装在旁边，甚至可用耐真空软管抽吸直管无法达到的液体，机动性十分强。 二、节省投资： 由于液下泵维修频繁，一般一池(槽)需设两台泵，一泵作维修备用，投资巨大，维修量大。而自吸泵可实现多池(槽)串、并联共用一泵，节省投资。自吸泵可用于气、液间歇操作，不怕抽空，可省去工艺流程中某些中间设备，如高位槽或低位槽，大大简化工艺流程，为您实实在在省钱。 三、上凯立式自吸离心泵原理及应用： 自吸泵原理采用独特的专利叶轮及分离盘强制气液分离而完成吸气过程。其外形、体积、重量、效率与管道泵相似。立式自吸泵不需要底阀、真空阀、气体分离器等辅助设备。正常生产启动时无需灌液，具有很强的自吸能力，可替代目前广泛使用的液下泵(低位液体输送泵)，可作分离器等辅助设备。正常生产启动时无需灌液，具有很强的自吸能力，可替代目前广泛使用的液下泵(低位液体输送泵)，可作循环泵、槽车输送泵、自吸管道泵、机动用泵等用途。

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译文：
Vertical transport corrosive liquid pump advantages: 1, generally in the transmission fluid pump, when the level below, we need to pump irrigation water. This is subject to the end of the pump inlet valve installed. Over time, corrosion or bottom valve is a place for exchange or repair is needed, and therefore very easy to use. 2, submersible pumps are generally used for carrying water, river water, acid and other corrosive liquid used for transport situation is prone to motor corrosion, leakage phenomenon, very safe. When the pump was blocked garbage must be linked up to clear the pump, very convenient, it is rarely used in practical applications. 3, so it made the expanse and the fluid transport pump to be low, low liquid delivery pump solved the problem. But thanks to the long axis, combined with uneven impeller radial force, the shaft has a cantilever structure, the rotation of the impeller end of the deflection caused a great deal. The longer axis, the greater the deflection. To solve this problem, install the shaft with bearings. However, the entire root axis for the flexible shaft, bearing wear under constant unilateral, wear large, bearing severe shaking, wear faster, so the higher frequency of liquid pump damage. And the axis should not be done too long, generally 2 meters. Liquid pump bearings is to rely on pumping medium for cooling and lubrication. Once the media pumping cold but not on the bearings and lubrication (this time in the air pump and imports occur when blockage of the culvert), bush-burning occurs, and even burn motor. The liquid pump repair installation is very troublesome. Particularly in the transport of corrosive media, no lifting tool difficult to accomplish. Liquid pumps to solve the issue of low transmission, but it also brings a lot of trouble in use. Pump Manufacturing Co., Ltd. on Haypath the introduction of foreign advanced technology to produce proprietary vertical pump, liquid pump against these shortcomings, specifically designed for low liquid delivery. It can replace the long axis of the ground, liquid pumps, self priming up to 8 meters, the boat bottom can be used as pumps, stripping pumps use. 1, vertical pump replacement fluid pump advantages: 1, the pump for the vertical overall structure, with the same parameters of liquid pumps compared to less weight, while an area is less. As the axis perpendicular to the direction to install, difficult to seal leaking Department. 2, self-priming pump eliminated the long axis, but also eliminated the problem of bearings, so maintenance considerably extended over the same period, also reduce the vibration. 3, there may be some damage in need of repair are on the ground, to bring great convenience maintenance. Pump inlet is only a hollow tube, without bottom valve. If the entrance blocked by garbage, cleaning up the hollow tube can be pulled out, while the liquid pump is required for a pump to clear hanging out. 4, liquid pumps in the pumping fluid to determine the time of purchase required depth, the depth and the pump if the liquid does not match the length of time, you need to change to the pump, butas long as the vertical pump with the hollow tubes of different lengths, different depths can be pumped without need to exchange itself. 5, air pump operation may still continue for some time, so as to help find and take measures to prevent the damaged motor, reduce the losses caused by misuse, security is good. 6, liquid pumps must be installed above the liquid. The self-priming pump installed at the top can also be installed in the next, even tolerance can be straight suction vacuum hose can not reach a liquid, mobility is very strong. Second, reduce investment: As the liquid pump repair frequently, usually a pond (tank) need to set up two pumps, one pump for maintenance reserve, a huge investment, maintenance volume. The pump can be realized more pool (tank) in series and parallel share a pump, saving investment. Self-priming pump for gas, liquid intermittent operation, not afraid of taking the time to be omitted in some intermediate process equipment, such as high or low slot tank, greatly simplify the process, you actually save money. Third, the vertical self-priming centrifugal pump Kay Principles and Applications: Principles of unique patented pump impeller and the separation of gas-liquid separator plate force the completion of the process of breathing. The shape, size, weight, efficiency and the pump similar to the pipeline. Vertical Self-Priming without bottom valve, vacuum valve, gas separator and other auxiliary equipment. Start normal production without irrigation fluid, has a strong self-absorption capacity, can replace the widely used liquid pump (low liquid delivery pump) can be used as separators and other auxiliary equipment. Start normal production without irrigation fluid, has a strong self-absorption capacity, can replace the widely used liquid pump (low liquid delivery pump) can be used as circulation pumps, tankers pump, since the suction channel pumps, motorized pumps purposes.