机组

Based on actual hydro-electric generating set, this paper studies horizontal dynamic Characteristics and dynamic response under the unbalanced force, analyses the stability and the position of the most adverse reaction.

本文针对实际机组，通过建立机组动力学模型，深入研究了大型水轮发电机组轴系的横向动力特性和不平衡力作用下的动力响应，分析机组的稳定性和最不利反应位置。

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。

UV-5S3A---is equipped with powder remover unit,remote-infrared rendering machine unit,UItraviolet five-roller varnisher unit,and automatic feeding and withdrawing paper device.

UV-5S3A---配除粉机组，远红打底机组，紫外光五辊上光机组，三机头及自动送纸，自动收纸生产线。

Energy is related to extent of water-power utilization; cavitation is related to service life of turbine; the stability not only has great effect to turbine life, but also is directly related to the normal operation of power station.

其中，效率特性关系到水能的利用程度，空蚀和空化特性关系到机组的使用寿命，而稳定性则不仅关系到机组的使用寿命而且关系到机组乃至整个电站能否正常运行。

Are the main products are: various types of fan coil; conditioning processor; new wind ventilators; air-cooled heat pump units, heat recovery water-cooled chillers; ground source, water source heat pump units and ancillary facilities.

现主要产品有：各种型号的风机盘管；空调处理机；新风换气机；风冷热泵机组、热回收水冷冷水机组；地源、水源热泵机组及配套设施。

Dehumidify process is in fresh air handle unit, way to set up components influences the result of avoiding growth of microbe in HVAC system, thus way to set up components in fresh air handle unit is discussed.

湿度优先控制系统的除湿过程在新风机组内进行，新风机组内各部件的设置对系统防止微生物滋长的能力有重要的影响，因此本文中对新风机组的设置进行了分析。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

Building-type air cooled cool water and hot water unit is central air-conditioning system using the air as the refrigeration source , the water as the refrigeration agent . As the equipment integrating the refrigeration and hearting generation , the air cooled water and hot waterunit omits the cooling tower and its corresponding tube system , its structure is simple and economizes much installation space , the maintenance and management is very convenient , the utilization is wide .

户式风冷冷热水机组是以空气为冷源，以水为供冷介质的中央空调机组，作为冷热兼用型的一体化设备，户式风冷冷热水机组省却了冷却塔及相应管道系统等许多附件，系统结构简单，安装空间节省，维护管理方便且节约能源，适用广泛。

Severe vibrations of hydroturbine units had occurred in some hydropower plants, with the increase of capacity and the water head.

随着水电建设的快速发展，机组容量和尺寸急剧增大，转速相应提高，机组振动及其诱发的水电站厂房结构振动问题日益突出，对机组振源和振动的研究更加紧迫。

Wing Tai Corporation inherit the traditional Kun-yi Subian mechanical advantages and characteristics, and to improve and improve, innovation, new products are mainly plastic-film Drawing units, various types of plastic circular loom, weaving plastic coating unit , High-speed ribbon machine, hardware products such as Si Lasi unit.

永太公司继承了传统的坤翊塑编机械的优点和特点，并加以完善、改进、创新，主要产品有新型的塑料平膜拉丝机组、各种型号的塑料圆织机、塑料编织涂膜机组、高速织带机、硬丝拉丝机组等产品。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。