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双语推荐：汽动辅助给水泵

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岭澳核电站辅助给水系统ASG作为核安全专设系统，能在失去正常主给水时，应急启动向蒸汽发生器二次侧供水，对保证机组的安全起着重要的作用，而汽动辅助给水泵转速调节器ASG136VV用于调节泵转速以满足系统需求。
Ling Ao nuclear power plant auxiliary feedwater system ASG as a dedicated system of nuclear security, when normal main feedwater, can, start emergency water supply to the steam generator secondary side, play an important role in ensuring the security and ASG136VV turbine driven auxiliary feed water pump speed regulator used to adjust the pump speed to meet system requirements.

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对核电厂常规岛辅助冷却水系统由板式换热器改为管壳式换热器并取消升压泵的方案特点进行了定性分析,指出了系统方案改进后的辅助冷却水系统正常停运时会产生水锤现象。通过对辅助冷却水系统建模定量计算了循环水泵停泵工况时的水锤最大压力,提出了通过调整阀门关闭时间消除水锤现象的防护方案并进行了计算验证。
ABSTRACT:This paper,first of all,qualitatively analyzes the characteristic of the auxiliary cooling water system of the conventional island of the nuclear power plant which uses the tube heater instead of the plate heater,pointing out that water hammer phenomena may be caused in the improved system. The maximum pressure of the water hammer when the circulating water pump is shut down is simulated and calculated. Finally the paper proposes the water hammer prevention solution of regulating the valve closing time and certifies the scheme by calculation.

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结合某厂DMTO装置，介绍了反应气压缩机组的组成，以及压缩机组厂房布置设计中需考虑的要素；探讨了设计过程中影响动力基础大小及高度的主要因素；并对润滑油系统、表冷器、凝结水泵、起重机等辅助设备的布置设计要点进行阐述。囊括了主要设备及辅助设备的布置设计，提供了厂房布置简图，对于此种类型机组的布置设计起到一定的指导和借鉴意义．
With a DMTO unit, the composition and the layout design of charge gas compressor were introduced, im-pact factors about the size and elevation of the compressor foundation were discussed, and key points of arrangement such as lubricating oil system, surface condenser, and steam condensate pumps, crane etc were explored. The design of main equipments and auxiliary equipments were focused on and plan drawing was provided to reader to be a guide and reference in the engineering design.

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热力发电厂闭式冷却水系统是一个重要且庞大的系统,为机组辅助设备提供冷却水源,以保证辅助设备及分系统的正常运行.某机组闭式冷却水系统曾发生大量空气窜入现象,导致该系统的闭式冷却水泵工作失常,为此对故障原因进行了详细的排查,找出了输灰空压机后冷却器的冷却水铜管破裂的故障点,解决了空气窜入的问题.
Closed cooling water system in thermal power plant is important and huge, providing cooling water for auxiliary equipment to enable auxiliary equipment and subsystem to run normally. There is excess of air in the closed cooling water system of some units, which resulted in abnormal operation of closed cooling water pump of the system. Therefore, causes for the failure are detected in detail. The cracked cooling water copper tube of the cooler behind air compressor for ash delivery is detected and air admission is stopped.

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山东某发电2×350MW超临界燃煤机组自动化控制系统选用了国产和利时公司的HOLLiAS-MACS控制系统,并且实现分散控制系统（DCS）、汽轮机数字电液控制系统（DEH）、给水泵小汽轮机数字电液控制系统（MEH）、辅助车间控制系统（BOP）控制系统全厂一体化功能,完成整套机组及辅网的集中监控。文中对该系统的结构、软硬件设计的特点作了详细介绍和分析。对HOLLiAS-MACS控制系统在350MW及以上机组采用全厂一体化控制发展前景做了展望。
The automation control system of 2*350MW supercritical thermal power generating units in Shandong is provided by Hangzhou Hollysys CO., LTD. The integration of DCS, DEH, MEH and BOP system is implemented. This paper discusses the system structure, and the features of software and hardware. The unified control of HOLLiAS-MACS system is also analyzed.

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中桥水库工程位于遵义市中心城区东北,该工程是遵义市两城区的主要水源工程。中桥泵站总装机4×2 240 kW,扬程高、流量大,设计难度大,文章根据目前泵站设计要求结合工程具体情况进行优选设计,包括水库设计水位、设计扬程、机型选择、辅助设备的优选。对于高扬程水泵及其附属设备的选择,选择的优劣直接影响工程整个效益以及工程建成后运行的成本,因此必须在设计阶段做好比选。
Zhongqiao reservoir is located in the northeast of Zunyi City,the main water source project of tow districts of Zunyi City.Pumping station installed capacity of 4 ×2 240 kW,high lift,large flow,so it is difficult to design.According to the design requirements and combined with the specific circumstances of the project pumping station design is optimized,including a reservoir design level,design head,type selection,auxiliary equipment.Selection for the pumping station of high head and auxiliary equipment will affect directly the whole project benefits and the operation cost after the project completion.Therefore,the optimal selection is very necessary in the project design stage.

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本文的目的在于研究在丧失常规岛仪表控制用压缩空气的情况下各重要系统的响应，得出该工况对一回路、二回路、BOP系统的影响和风险，最终让核电厂主控操纵员能够采取最有效且可行的操作方法和操作顺序来控制核电机组的状态。操纵员能通过专门针对此工况的规程使得汽轮机在停运的过程中：首先能够尽量缓解一回路的瞬态；其次保证汽轮机、凝汽器、低压缸爆破膜、辅助冷却泵、主给水泵、凝结水泵等重要设备能够安全停运。强调在这个过程中主控操纵员应该关注的主要方面。本文分析的方法是通过对机组二回路工艺系统中的重要气动调节执行机构在丧失仪表控制用压缩空气后的安全状态进行分析，先得出单系统丧失仪表控制用压缩空气后的影响，然后把各个重要的调节系统丧失仪表控制用压缩空气的后果综合起来一起分析，得出在满功率运行状态下整体丧失仪表控制用压缩空气后对机组的影响，然后针对其影响找出应对的方法。论文的最后，就当前机组在仪表控制用压缩空气设计上的不足给出改进方法和编写专门针对此种工况下的运行规程。论文中出现的系统名称对照见附录1，各气动调节阀失气后的状态和影响见附录2，昌江核电厂压空系统简图见附录3。
The purpose of this article is to study the response of each critical systemin compressed air for instrument control in the case of loss of conventional island and concluded that the condition on a circuit has impacts on the secondary circuit system and the BOP system, eventually master of nuclear power plant operators to take the most effective and feasible method of operation and sequence of Control to control the State of nuclear power units. Operator through specific procedures of this condition in the process of stopping of steam turbine, first to minimize the transient circuit, followed ensure turbine, condenser and low pressure cylinder blast films, auxiliary cooling pumps, water pumps, condensate pumps and other critical equipment to safely down, stressed that in the process, master control operator should concern the main aspects. This analysis of method is through on Unit II back road all important pneumatic mediation implementation institutions in lost instrument control wit

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