查询词典 compressor-expandor

Turbojet engine ; Axial flow compressor ; Aerodynamic characteristic ; Numerical calculation

涡轮喷气发动机；轴流式压缩机；气动特性；数值计算

This article take some turbosupercharger air compressor as the research object, discussed based on the parameter actuation fluid analysis combination optimization technology universal significance.

本文以某涡轮增压器的压气机为研究对象，讨论了基于参数化驱动的流体分析组合优化技术的普遍意义。

The study on the design methodology of centrifugal compressor with low loss, high load, good performance under full condition and the CFD design of the turbo diffuser and volute is one of the front topics in the field of enhancing the turbosupercharger efficiency.

设计具有低损失、高负荷和良好全工况性能的压气机，以及对扩压器和蜗壳进行气动性优化设计是关系到提高涡轮增压器效率的前沿课题。

Therefore, it is necessary to do some researches on a twin-screw compressor.

可见，研究双螺杆压缩机具有十分重要的意义。

That can improve the mechanical performance of a twin-screw compressor further.

重点研究的是双螺杆压缩机的转子型线设计、几何特性、受力分析、热力学计算。

On the basis of thermodynamics, the mathematic model of the working process of water-injected twin-screw air compressor has been established.

本文以变质量热力学为基础，分析了压缩过程中的气、液两相的潜热和显热的交换，考虑了两种泄漏模型，建立了喷水螺杆空气压缩机工作过程的热力学数学模型。

Based on the force and moment balances on the shaft and compressor frame, mathematical formulation of shaft bearing loads, unbalanced force and moment acting on the frame were made in terms of balance weight design parameters such as masses and installations of the upper and lower balance weights.

分析了在二次平衡中，主、副平衡重的安装角为任意值的条件下涡旋压缩机的动力特性，推导了在保证机架受力情况最好的条件下，通过改变平衡重的安装角来控制主轴承受力的设计公式，从而确保了轴承的使用寿命，提高了压缩机的可靠性。

Uncontaminated water is normally used as seal water for vacuum pumps and for compressor cooling as well as for sanitary use.

未污染的水通常用作真空泵的密封水和压缩机的冷却水以及供保健用。

Situations that can reduce the overall efficiency of the system include, refrigerant overcharge, refrigerant undercharge, restrictions in refrigerant lines, faulty compressor, excessive load, insufficient load, undersized or dirty duct work, clogged air filters, etc.

情况，可以降低系统的整体效能，包括冷媒滥，冷媒undercharge ，限制冷媒线，压缩机故障，过度负荷，负荷不足，不足或肮脏管工作，堵塞的空气过滤器，等。

Impacts of varying stress on unit in low temperature, reason and harm of losing oil and slugging, and reaction to slugging for different types of compressors are analyzed. The fault cause is understood. Exact improving measures for unit and methods of faults detection are given, which solve the problem of compressor running fault in some degree.

分析了低温环境下交变应力对机组的影响、失油和液击产生的原因和危害及不同类型压缩机对液击的反应，了解了故障产生的根源，给出了改进热泵机组的具体措施及现有机组的故障检测方法，认为这样可以在很大程度上解决压缩机运行故障问题。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。