本文简要介绍膨胀机制冷原理及大庆油田膨胀制冷脱水装置的试验情况。
The principles of expander refrigeration and the testing situation of expander refrigeration dehydration apparatus in Daqin Oil Field are briefly introduced in this paper.
在简述阶式制冷工艺、混合制冷工艺和膨胀制冷工艺的基础上，介绍了上述3套国内液化天然气工厂的工艺原理。
With describing the cascade refrigeration technique, the mixing refrigeration technique, and the expanding refrigeration technique, the working principle of the above 3 LNG plants is introduced.
将天然工质N2O用于跨临界循环，建立了相应的理论模型，比较了CO2和N2O用于跨临界两级压缩膨胀制冷循环的性能。
The results show that N2O plays a better comprehensive performance than CO2 in transcritical two stage compression expander refrigeration cycle.
空调设备使用的传统的蒸发压缩循环系统中，冷却剂被压缩冷凝后膨胀气化来给房间制冷。
In conventional vapour-compression systems used by aircon units, the refrigerant is compressed and condensed and then expanded and evaporated to cool the room.
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.
最经常的情况是，在膨胀阀处水分变成冰儿阻碍了制冷剂的流动。
In most cases the refrigerant flow is being obstructed as moisture turns to ice at the expansion valve.
它由压缩机、冷凝器、蒸发器、制冷剂流量控制阀和或恒温膨胀阀五个基本配件组成。
It consists of five basic parts, the compressor, the condenser, the evaporator, the receiver, and the refrigerant flow control valve or the thermostatic expansion valve.
为了节约成本，避免使用两个热力膨胀阀，文章提出了一种新型的用于热泵的节流机构，实现了制冷和制热的最佳匹配。
In order to save costs and avoid using two thermal expansion valves, the paper proposed a new throttle mechanism used for the heat pump and realizes the best match of the cooling and heating.
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.
建立了热力膨胀阀模型，重点建立了流量与阀前后压差及制冷剂进出口干度的关系。
The model of thermal expand valve is built and the connection of flux, pressure difference between the front and behind of the valve and cryogen dryness of inlet and outlet.
同时介绍利用上述基本热力学数据计算石油天然气膨胀机制冷过程等熵效率；
The basic data thus obtained could be used for the calculation of the isentropic efficiency in the expanding process of natural gas in refrigeration.
结果表明：涡流导致涡流室中心区域气流膨胀是涡流管产生制冷效应的一个重要原因。
Results show that gas expansion in central region of vortex chamber caused by swirling flow is an important reason for the refrigerating effect of vortex tube.
鑫雷产品涵盖高效盘管壳式换热器、钛管换热器、镍铜管换热器、套管换热器、膨胀水箱等，广泛应用于商用空调、制冷设备、热泵热水机、泳池调温设备、海鲜池恒温机。
The products range covers high efficiency shell heat exchanger, titanium tube heat exchanger, nickel copper heat exchanger, tube in shell heat exchangers , expansion tanks and so on.
文章介绍了载人航天空间环境模拟器气氦制冷系统中氦气透平膨胀机的设计、制造、调试等过程，并说明了它具备的特点。
The paper introduces the helium turbine which used in helium refrigerator of space environment simulator, including its design, setting-to-work test and its characteristics.
制冷机的作用是压缩制冷剂，如安或氟利，使它获得机械能，而后膨胀气化吸热而制冷。
The chiller is compressed refrigerants, such as Ann or fluorine, and make it, then get energy absorption and refrigeration inflation gasification.
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.
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.
压强的减小使得液态制冷剂几乎变成气态，但在通过膨胀阀这一刻，它的状态仍是液态。
This pressure reduction causes the liquid refrigerant to be on the verge of becoming a gas but it is still a liquid at this specific point.
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.
蒸气制冷剂产生减缓膨胀气体的膨胀速率的补强蒸气，从而将膨胀气体留存在金属表面上。
The vaporous cryogen creates a reinforcing vapor that slows the expansion rate of the expanding gas, localizing the expanding gas over the metal surface.
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.
本文对国产CL-503中压带液透平膨胀机制冷回收轻烃装置的运行情况作了总结。
This article concludes the operating situation of the home-made CL-503 median pressure carrying liquid turbine expander refrigeration equipment for light hydrocarbon recovery.
液体制冷剂接触金属表面，从而在金属表面上产生一定体积的膨胀气体。
The liquid cryogen contacts the metal surface, generating a volume of expanding gas over the metal surface.
制冷循环中往往采用回热器，使压缩机吸气过热和膨胀阀入口液体过冷。
Vapor-liquid heat exchangers are often used to superheat the suction vapor of compressor and to subcool the inlet liquid of throttle valves in refrigerating system.
试验表明：使用电子膨胀阀对比使用热力膨胀阀，机组的制冷量提高11.4%以上、COP提高9.6%以上。
The experimental result shows that using electronic expansion valve instead of thermal expansion valve, the cooling capacity increases by 11.4%, COP increases 9.6%.
凉爽型系列采用强制冷却液，当通过螺母通过，最大限度地减少热量的产生和热膨胀。
The cool type series USES forced cooling fluid that, when passed through the nut, minimizes heat generation and thermal expansion.
并与直接膨胀供液制冷系统做同工况下的对比实验，分析两种系统的工作特性差异。
Contrast experiments between gravity feeding and direct expansion refrigeration system were carried on, performance characteristics difference of the two refrigeration systems were found out.
并与直接膨胀供液制冷系统做同工况下的对比实验，分析两种系统的工作特性差异。
Contrast experiments between gravity feeding and direct expansion refrigeration system were carried on, performance characteristics difference of the two refrigeration systems were found out.
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