机组

The main study in the paper is as follows: Firstly, discussing the purpose of carrying on hydropower units fault diagnosis, then, introduce state of the art and classical method in the field of fault diagnosis in hydroelectric sets. The mechanism, major failure and failure symptom of hydropower units, three methods that can identify unit's vibration fault. With the key technology of monitoring on hydropower sets together with the viberation signal-disposed and fault feature-extracted are analysised.

本文主要进行了以下工作：从水电厂实际出发，阐述了开展水电机组故障诊断研究的重要意义与目的，简要介绍了国内外水电机组故障诊断技术发展现状以及目前应用于故障诊断领域的常用方法，系统地分析归纳了水电机组振动的机理、主要故障及其故障征兆、识别水电机组振动故障原因的三种方法，以及水电机组监测的关键技术和故障特征提取技术。

Shenling has taken part in drafting the national standards: Dehumidifiers, energy efficiency limit value of the Chillers and its energy efficiency ratio grade, energy efficiency limit value of the Packaged Air Conditioner and its energy efficiency ratio grade, Rooftop Air-conditioners, Vapor Compression Cycle Chillers, For Industry and Commerce Use and Similar Purpose Chillers, Packaged Air Conditioners, Changeable Air Amount Terminal Units, Aeration Equipment for Air Energy Reclaiming, core documents of quality standards for constructing project products, Positive Displacement Compressing Condensers, Heat Pump Chillers,Modular Air Handling Units,screw type refrigerant compressors, Purchase specification on heating Ventilating and air conditioning equipment for chemical plant.

申菱公司参与起草的产品国家标准：除湿机、冷水机组能效限定值及能源效率等级、单元式空气调节机能效限定值及能源效率等级、屋顶式空气调节机组、蒸气压缩循环冷水机组工商业和类似用途的冷水机组、单元式空气调节机、空调变风量末端装置、空气——空气能量回收通风装置、建设工程产品质量标准核心条文、容积式压缩冷凝机组、热泵热水机、组合式空调机组、螺杆式制冷剂压缩机、化工暖通空调设备采购规定。

Shenling has drafted the following national standards independently: air handling units for operation room, entire fresh air type dehumidifier units and low temperature packaged air conditioners.shenling has taken part in drafting the national standards: dehumidifiers, energy efficiency limit value of the chillers and its energy efficiency ratio grade, energy efficiency limit value of the packaged air conditioner and its energy efficiency ratio grade, rooftop air-conditioners, vapor compression cycle chillers, for industry and commerce use and similar purpose chillers, packaged air conditioners, changeable air amount terminal units, aeration equipment for air energy reclaiming, core documents of quality standards for constructing project products, positive displacement compressing condensers, heat pump chillers,modular air handling units,screw type refrigerant compressors, purchase specification on heating ventilating and air conditioning equipment for chemical plant.

参与起草的16项国家或行业标准是：gb/t 19411-2003《除湿机》、gb 19577-2004《冷水机组能效限定值及能源效率等级》、gb 19576-2004《单元式空气调节机能效限定值及能源效率等级》、jb/t 10538-2005《防爆除湿机及空调机》、gb/t 20738-2006《屋顶式空气调节机组》、gb/t 18430.1-2007《蒸气压缩循环冷水机组第1部分：工业或商业用及类似用途的冷水机组》、gb/t 17758《单元式空气调节机》、jb/t《空调变风量末端装置》、gb/t 21087-2007《空气-空气能量回收通风装置》、《建设工程产品质量标准核心条文》、gb/t 21363-2008《容积式制冷压缩冷凝机组》、gb/t 21362-2008《商用或工业用及类似用途的热泵热水机》、gb/t 14294《组合式空调机组》、gb/t 14296 《空气冷却器与空气加热器》、gb/t 19410《螺杆式制冷剂压缩机》、hg/t 20697-2007《化工暖通空调设备采购规定》。

In chapter 3, combining specific example, set vibration, axis swing, pressure pulsation and spectrum is analyzed, the stability of the water-power set is evaluated, unbalanced factors existed in the set is pointed out, possible excitation sources is obtained, hydraulic excitations as the most important factor is emphasized, measure aimed to improve set operation is provided and stable interval is divided.

第三章主要结合具体工程实例，通过对机组的振动测试结果分析、轴摆度测试结果分析、水压脉动测试结果分析以及频谱分析，从不同的角度综合评价机组的运行稳定性，指出了机组所存在的各种不平衡因素，给出了可能影响机组运行的各种振源，强调了水力振源是最主要的影响因素，提供了改善机组振动状态的措施并划分出机组的稳定运行区间。

It only took 38 months from construction preparation at the end of October, 2001 to the first unit operating on December 20, 2004, which antedated the construction time limit by 7 months. During the period, 5-month-construction period delayed was saved because of the karst geological problems of dam's partial foundation. 3 units were put into operation in 2005, especially it only took 23 days from the runner of 4# unit hoisted to put into operation. It created the wonder of installing large axial-flow feathering unit.

乐滩电站从2001年10月底开始施工准备到2004年12月20日首台机组投产发电，仅用38个月的时间，比合理工期提前了7个月，并在此期间，抢回因厂坝部份地基岩溶地质问题延误的5个月工期。2005年又实现了年内3台机组投产发电，尤其4号机组从转轮吊装到机组并网发电，仅用23天，创造了大型轴流转桨机组安装奇迹。

The system can not only monitor and diagnose trouble on line about these sets running state, but also provide the basic state and the ability of maintenance situation message, it conjoins the vibration data and technical parameter and present regular monitor message, it realizes the regular assessment in common running condition of the sets and the comprehensive trouble diagnosis analysis in unusual running condition, it provides important foundation for maintenance and the sets trouble found earlier.

系统不仅可以对这些机组的运行状态进行在线监测和故障诊断，而且还应提供机组基本状况及维修情况信息采集功能，将振动数据、工艺参数及现有的人工定期监测信息结合起来，实现机组正常状态的定期评估和机组异常状态下的综合故障诊断分析，为机组故障的早期发现和维修决策提供重要依据。

The main products are: two hot-rolled unit roller cold, cold 4-high hot-rolled unit, four-high reversible cold-rolled unit, with related support equipment (such as: Pickling decorticating equipment, formed unit, Slitting units, precision-cut crew, spiral Looper, hydraulic up feeder, the five volumes of a roll, roll a seven-volume, coiling up of the machine, hydraulic shear, Chongjian, etc.).

主要产品有：二辊冷热轧机组，四辊冷热轧机组，四辊可逆冷轧机组，配套辅助设备（如：酸洗剥壳设备、平整机组、纵剪机组、精密分剪机组、螺旋活套、液压翻料机、五辊打卷机、七辊打卷机、涨力卷取机，液压剪、冲剪机等）。

Welded pipe unit: The stainless steel welded pipe unit, the cold bending formation series welded pipe unit, the high frequency welded pipe unit, the pot galvanize unit, cut the butt welding machine, the spiral welded pipe unit and the heavy-caliber straight seam bury the arc-welded pipe unit and so on the complete set of equipment and so on;..

焊管机组：不锈钢焊管机组、冷弯成型系列焊管机组、高频焊管机组、热镀锌机组、剪切对焊机、螺旋焊管机组及大口径直缝埋弧焊管机组等成套设备等；。。

Seamless steel pipe unit: The steel pipe straightening machine, the puncher, the company roll over the unit, the company tube rolling train, two roller cold tube rolling trains, the cold-drawing machine, three roller tube unit, five roller cold tube rolling trains, the cyclical tube rolling train, the automatic tube rolling train, the top pipe unit, the steel pipe extrusion unit, the tensity reduce processing process units and so on the diameter machine and so on each kind of steel pipe finishing equipment and so on...

无缝钢管机组：钢管矫直机、穿孔机、连轧机组、连轧管机组、两辊冷轧管机组、冷拔机、三辊管机组、五辊冷轧管机组、周期轧管机组、自动轧管机组、顶管机组、钢管挤压机组、张力减径机等加工工艺设备等各类钢管精整设备等。。

With a solid strength and technological strength, Yide companies in the Electrical and Mechanical products will be different for the various sectors of the various types of users tailor-made programmes, to provide users with personalized service, the following: Unit standard installation, noise and exhaust gas purification works projects The design and installation, optimization of selection, the engine room of the special modification, debugging and unit testing routine maintenance; crew of any emergency repairs; customers in the local unit to facilitate access to preventive maintenance contract; pieces of equipment for the company, Fast 1000,2000,5000 hours to provide the full set of accessories and all the usual crew of spare parts, all models of the monitoring unit of upgrading in order to facilitate a smooth unit into the telecommunications equipment intelligent management system.

凭借雄厚实力和技术力量，怡德公司在机电产品方面更可为各个行业的不同用户度身定制各类方案，为用户提供以下个性化的服务：机组标准安装，降噪工程和废气净化工程的设计与安装；优化选型、机房改造、特殊改装、机组的检测调试和常规保养；机组的任何突发性抢修；客户可在当地方便获得机组预防性维修保养合同；公司专设备件库，可快速向客户提供1000、2000、5000小时全套机组配件及所有常规零配件；所有型号机组的监控型升级改造，以利于机组顺利纳入通讯设备智能管理系统。

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。