通过阶跃响应实验法，利用最小二乘法建立燃气机热泵蒸发器—电子膨胀阀系统的过热度响应动态模型。
The step response method of the outlet superheat of evaporator is measured by conducting experiments, and dynamic model of EEV is established by LSE (least square estimation).
分析热力膨胀阀和蒸发器调节系统的稳定性，它直接影响着制冷效率和运行安全。
This paper describes the stability of control loop consisting of refrigeration evaporator and thermostatic expansion valve. It may directly influence refrigerating efficiency and operation safety.
变排量压缩机与热力膨胀阀的配合问题是目前汽车空调系统研究的一个难题。
The matching of variable displacement compressor and thermal expand valve is a difficult problem in mobile conditioning system now.
热力膨胀阀与板式蒸发器的匹配问题包括容量匹配和系统稳定性要求两方面的要求。
The capacity matching and system's stability are two important aspect for the matching of thermal expansion valve with plate evaporator.
系统模型中包含了用集总参数和相移动边界法建立的热交换器动态模型，以及压缩机和膨胀阀的稳态流动模型。
The system model comprises the dynamic heat exchanger model based on the lumped parameter method and moving phase boundary method, and the stable flow models of compressor and expansion valve.
采用BP-PID控制器对系统电子膨胀阀开度进行控制，并设计了BP-PID控制器。
The paper presented a BP-PID method to control electronic swell valve of system, then BP-PID controller was designed.
对壳管式换热器、螺杆压缩机、电子膨胀阀进行详细的选型和设计计算，对哈尔滨市某办公楼设计出一套污水源热泵系统。
Shell and tube heat exchanger, screw compressor, and electronic expansion valves are detailed selectioned and designed, and a sewage-source heat pump system is designed for a building of Harbin.
在对电子膨胀阀的特性及制冷系统的运行规律的认真分析基础之上，设计了变频压缩机的精准在线控制。
Basing on analyzing the characteristic of EEV and running rule of refrigerating system in detail, it designs precise online control of inverter compressor.
电动阀几乎可以在制冷系统中任何一个地方使用，而并不局限于膨胀阀。
The benefits of the of the electric valves can by realized in almost every part of the system, not just as expansion valves.
分析了它对制冷系统的流量控制特性，并与传统热力膨胀阀的流量控制特性相比较。
The refrigerant flow rate regulation characteristics of it is analysed and compared with that of the conventional TEV.
若同时保持吸气过热度一定，则三联式系统内两单机的膨胀阀开度、制冷剂质流量、制冷量呈现出抛物线的依变关系；
With the suction superheat kept constant meantime, the valve opening, refrigerant mass flow rates and the cooling capacity between two individual units exhibit a parabola relationship.
介绍了热力膨胀阀应用于空调制冷系统的几个问题：过热调整不当、感温包常见故障、容量匹配及膨胀阀冻结故障等。
Some problems as incorrect adjustment on the degree of superheat, general failure of the thermometer bulb, matching of the capacity and freezing of the TEV are presented.
跨临界二氧化碳制冷系统节流控制机构，主要包括节流阀、汽液分离器、电磁阀、混合器、热力膨胀阀等。
The throttle control mechanism of cross-critical CO2 refrigerating system includes mainly throttle valve, vapor-liquid separator, solenoid valve, mixer thermal expanding valve, etc.
跨临界二氧化碳制冷系统节流控制机构，主要包括节流阀、汽液分离器、电磁阀、混合器、热力膨胀阀等。
The throttle control mechanism of cross-critical CO2 refrigerating system includes mainly throttle valve, vapor-liquid separator, solenoid valve, mixer thermal expanding valve, etc.
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