Study on the Standard Throttling Set On-line Iterative Measurement

A new method about the standard throttling set on-line iterative measurement is proposed, that is based on flow measurement using the traditional standard throttling set.

在研究传统的标准节流装置测量流量方法的基础上，提出标准节流装置在线迭代测量新方法。

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The spatial stochastic distribution of phase concentration would cause a differential pressure noise when two phase flow is crossing a throttling set.

两相流流过节流装置时产生的差压测量噪音是由于相浓度在空间的随机分布所引起的。

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Electronic expansion valves ( EEV) are throttling components in refrigeration system. It can adjust the flow of refrigerants, throttle step-down, and control superheat in system.

电子膨胀阀（EEV）是制冷系统中的节流元件，它在系统中的主要作用是调节系统制冷剂流量、节流降压及控制过热度。

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The throttling refrigeration technology with cryogenic mixed-refrigerant, which can be used for gas liquefaction, obtains attention and development more than ever before in the recent years since it has the inherent advantages and the characteristics of big refrigeration scope.

可用于天然气液化的深冷多元混合工质节流制冷技术由于其固有的优点以及其制冷温区跨度大的特点，近年来得到了前所未有的重视和发展。

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The gas processing project injects ethylene glycol to protect hydrate and use throttling refrigeration for dehydration and de-hydrocarbon. The condensate process is flash stabilization process.

其处理工艺采用乙二醇防冻、节流制冷、低温脱水脱烃、凝析油闪蒸稳定工艺。

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The Multiwell heating, throttling refrigeration and low-temperature separation process have been applied in the gas gathering station of the Yulin gas field.

为彻底解决该问题，先后在榆总站建设了两套大面积换热、节流、低温分离工艺装置，并在现场进行了工业性试验。

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Considered of its simplicity and reliability, the single throttling refrigeration system can take the place of the classical cascade refrigeration system in many cases.

综合表明：考虑到混合工质节流制冷系统的简单性与可靠性，混合物工质一次节流制冷有可能部分替代经典复叠式制冷方式。

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An experimental system is developed to investigate the dynamic characteristics of the mixture composition variations in the closed throttling refrigeration cycle.

建立了专门实验系统来研究多元混合工质闭式循环节流制冷机内工质组元浓度动态变化特征。

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Application of throttling refrigeration to natural gas separation

节流制冷在天然气分离中的应用

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The throttling refrigeration cycles using mixing gases used in high technique

高技术用混合气体节制冷循环

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The computing method of differential throttling and the analytical process of thrust vector of inner nozzle and plug were introduced. The generated moments of pitch were given.

介绍了差分流量调节的计算方法和内喷管与塞锥推力矢量变化的分析过程，计算产生的俯仰力矩。

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A propane refrigeration cycle process, combined with the existing gas field high-pressure throttling refrigeration treatment process, the transformation process of the low pressure gas propane refrigeration cycle, which provided technical support for the future design of the propane refrigeration system.

研究了丙烷制冷循环工艺，结合现有的气田天然气高压节流制冷处理工艺流程，提出了低压气丙烷制冷循环的改造工艺，为今后丙烷制冷系统的设计提供了技术支撑。

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The available energy loss of ASU lies in the gas compression, heat exchanging, distillation, and throttling depressurization process.

空分设备有效能损失主要存在流体的压缩与膨胀、热交换、精馏、节流减压。

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There is a huge waste of pressure energy in natural gas processing and transport area by using throttling refrigeration process.

天然气处理、输运过程中常采用节流制冷工艺，这会导致压力能的巨大浪费。

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This paper presents a dynamic model of air-cooled unit air conditioner during start-up/ shutdown processes, in which dynamic distributed parameter models of two-phase flow in heat exchangers are used, and steady state models are applied for the compression and throttling process.

建立了计算风冷小型空调器启动、停机过程的动态数学模型，其中压缩与节流过程采用稳态模型，而换热器则采用动态分布参数分相流模型。

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The final liquid ratio of superfluid helium by vacuum-pumping accompanied with throttling process is 90.3%, and the complexity and the cost of the equipment is similar to the vacuum pumping plan.

抽真空及抽真空与节流过程相结合的方案最终获得的超流氦液体率分别约为100%、90.3%。

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This paper introduces the principle, technical index of tools, and applicable scope of downhole throttling process, and provides a concrete plan implemented in Shuangtuozi gas field.

介绍了井下节流工艺原理、工具技术指标及适用范围，给出了具体实施方案设计在双坨子气田开发中的应用。

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Based on vacuum pumping accompanied with throttling process, presenting several superfluid helium cooling cycles and analyzing their flow principle and cooling characteristic.

以抽真空与节流相结合为基础，给出了几种超流氦冷却循环方式；

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The conception of "inversion curve" is usually introduced in the discussion of the temperature effect for adiabatic throttling process of gases.

讨论气体绝热节流过程中的温度效应时，一般要引入转变曲线这一概念。

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Adiabatic Throttling Process of Gas Is Not Isoenthalpic

气体的绝热节流过程不是等焓过程

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