water-test performance of the pump

This paper proposed a mathematics model for the simulation of ground-source heat pump system based on distributed parameters, including compressor, plate-type heat exchanger, thermostatic expansion valve, water and refrigerating agent thermal condition performance and performance of state matter, and so on.

本文用稳态分布参数法建立了土壤源热泵装置各部件的数学模型，包括压缩机、板式换热器、热力膨胀阀、水和制冷剂的热性和物性参数的程序化等。

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The water flow velocity in the suction pipe, which is crucial for evaluating the performance on pumping fish, can be measured by the pumped water flow rate of the riser in an air lift pump system.

气力提升泵的水输送量反映了提升管进口的流速情况，而进口流速是衡量吸鱼效果的重要因素。

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And experimental research on performance of the CO2 transcritical water-to-water heat pump cycle system with expander or throttling valve was executed.

同时还对带膨胀机或节流阀的CO2跨临界水-水热泵循环系统进行了实验研究。

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The working condition analysis and adjustment applying performance curve of water pump and pipeline shows a way for power saving and reducing water power disadjustment.

利用水泵和管路的性能曲线对水泵的运行工况进行分析和调节的方法，指出了节约电能、减轻水力失调的主要途径。

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Three kinds of pumps, hydraulic jet pump, electrical submersible pump ( ESP) and screw pump, have been used for artificial production in the oilfield and the hydraulic jet pump driven by processed production waste water has showed the best performance.

该油田采用过的人工举升采油方式有射流泵、电潜泵和螺杆泵采油3种，其中以用生产污水为动力液的射流泵采油效果最好。

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