译文：
潜水排污泵因其安装简单、占地面积小、维护方便、无噪声等优点，在工程中广泛用于市政工程、工厂、商业、医院、宾馆、住宅区等的污水排放。目前中国国内的潜水排污泵主要由国内的生产厂家生产和制造，少部分的产品由国外进口。市场前景十分广阔。但由于潜水排污泵的可靠性方面有待加强，所以，提高其产品的技术含量是厂商今后发展的主要方向。 一、 潜水排污泵存在的问题： 潜污泵为立式布置，泵与电动机同轴，这样就使得转动部件的重量与叶轮承受的水压方向向同；其次，潜污泵是在液下使用，输送的污水介质中含有杂质、淤泥等物质；第三，潜污泵属于离心泵的一种，在其运行时，功率总是随着流量的增加而增加，当流量超过设计流量并达到一定值时，电机就会因过载而烧毁。以上些问题都会不同程度的影响潜水排污泵的使用寿命。 二、潜水排污泵的发展方向： 1、 针对潜污泵存在的问题，有些国内的生产厂家把精力放在了开发泵的保护系统上：在水泵运行发生异常时自动报警或者切断电源。虽然这种办法可以起到一定的效果，而且这种保护也是有必要的，但这并不是解决问题的根本方法，我们还要把重点放在提高水泵的性能上，把问题从根本上解决。 2、 除此之外，产品的开发还要充分的考虑到环境问题，让研发的产品都更节能、环保。 3、综上所述，潜水排污泵今后需要解决的问题是提高使用的可靠性，能适应多种工作环境，优化其结构设计，进一步完善潜污泵的性能。

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原文：
Submersible sewage pump because of its simple installation, small footprint, easy maintenance, no noise, etc., are widely used in public works projects, factories, commercial, hospitals, hotels, residential areas such as sewage discharges. At present, China's domestic sewage submersible pump manufacturer mainly by domestic production and manufacture, a small number of products imported from abroad. Market prospects are bright. However, the reliability of submersible sewage pumps to be stronger, so, to improve the technological content of their products is the main direction of future development firms. 1, submersible sewage pump problems: Sewage pump for the vertical layout, pump and motor axis, thus making the weight and impeller rotating parts exposed to the same pressure orientation; Secondly, the sewage pump is used in the liquid, the sewage transport medium containing impurities, silt and other substances; third, centrifugal submersible sewage pump is of a kind, in its run time, power is always increased with increasing flow, when the flow exceeds the design flow and reach a certain value, motor Jiuhui due to overloading burned. Some questions over the impact of different levels will be diving sewage pump life. Second, the development direction of diving sewage pump: 1, for the sewage pump problems, some domestic manufacturers to focus on the development of protection systems on the pump: the pump to run automatically when the alarm or abnormal power off. While this approach may play a certain effect, and this protection is a Bi Yao's, but this is not the basic method to solve the problem, we also place the focus on the performance of Pump, to fundamentally solve the problem. 2 In addition, product development but also fully take into account environmental issues, to develop products that are more energy efficient, environmentally friendly. 3, above, submersible sewage pump is the next problem to be solved to improve the reliability of the use, can adapt to various working environments, optimizing the structure design, to further improve the performance of submersible sewage pumps.