It is pointed out that passage hydraulic loss is related to the flow circulation , the influence of flow deviation on passage hydraulic loss and pump assembly efficiency is analyzed , the forming mechanism of flow deviation is investigated , and the method of eliminating flow deviation is put forward 指出流道水力损失与水流环量有关，分析偏流对流道水力损失和泵装置效率的影响，研究偏流形成机理，提出消除偏流的方法。
To serve the optimum hydraulic design for a large pumping station , a new method to separate inlet and outlet conduit from tubular pump system was put forward for measuring their hydraulic baa , by the way to design a special measuring system 摘要为了配合某大型泵站贯流泵装置的优化水力设计研究工作，本文提出了设计专用模型试验装置，将贯流泵装置进水流道和出水流道从水泵装置模型中分离出来分别进行模型试验及水力损失测试的方法。
It demonstrates the correctness of the structure design , material choosing , and manufacture technology . the success of the gear pump manufacturing gives testing data for further theoretical study and makes a substantial ground to the series production 该齿轮泵装置研制的成功，为高参数齿轮泵产品的系列化打下坚实的基础，为进一步的理论研究提供了样机的实验数据；同时表明我们已经拥有生产聚合物熔体输送增压用高参数齿轮泵的技术，可以实现国产化。
The afterheat , which is collected by recovery devices , in winter can be used as the low level thermal source of heat pump , and in summer can preheat feed water , thus equivalent an economizer . because energy flows in the system so reasonably that energy is used to the most , therefore , its energy conservation effect is significant , and the operating expenditure declines consequently . the sewage can be reused after due treatment , thua it has a certain social and ecological benefit , too 本研究中选用分离式热管装置提供洗浴用水，利用水源热泵装置，一机两用，进行空间供热和制冷，并通过余热回收器对系统内的余热进行回收，冬季可作为水源热泵的低位热源，夏季可对锅炉给水进行预热，起到“省煤器”的作用。这样实现系统内的能量合理流动，从而达到节能的目的，同时洗浴污水经适当的处理后可以回用，因而还具有一定的社会和生态效益。
On the basis of the analysis of fundamental principle of thermoelectric refrigeration , the steady state mathematical model of the thermoelectric system was founded . according to the model , the theoretical analysis and calculation are made on various working conditions , and analyzed theoretically the effects on thermoelectric system which caused by hot and cold temperature difference , the device ’ s effective system figure of merit , the properties of the heat changers , which established theoretical basic for the opening up and design of the thermoelectric system and its performance test 在分析热电制冷基本原理的基础上,建立了热电装置的稳态系统数学模型,并依据该模型对热电装置系统进行了不同的工作状态下的热力分析计算,并就热电装置的冷热端温差、电堆片的优值系数、散热器的散热性能与热电热泵装置性能的影响进行了理论分析,为热电装置的开发设计和现有热电装置的性能测试建立计算理论基础。
According to the fact of the oil field , the paper studies the feasibility of applying heat pump during the process of production in the oil field , offers the material designing and calculating methods and the example of the heat pump ' s technology applying in the southern tenth united station of oil recovery plan no . 2 , daqing oil field corp . ltd . 本文根据油田生产实际，研究了油田生产中应用热泵的可行性，给出了具体的设计计算方法及热泵技术在大庆采油二厂南十联合站的应用实例。本文还对用热泵技术回收电厂循环水低温余热进行了研究，给出了方案图，并对电厂用热泵装置进行了详细的设计计算。
