译文：
1 电站调节阀的现状 电站调节阀主要分布在锅炉、汽轮机和辅机3大系统中，其次分布在许多辅助性系统中。对于中温中压蒸汽参数的发电机组一般采用少量的国产常规调节阀，而对于高参数、大容量火电机组，一般在大于100MW以上机组，就采用越来越多的引进调节阀。参数越高，机组容量越大，火电站的热控技术，机组的安全经济运行就作为主要的目标，而各种各样的调节阀就作为实现安全运行的有效手段。例如我国上海台洞口发电二厂，2台超临界参数600MW发电机组，共计采用了400余只各种类型的调节阀和电动阀，分布于各个系统中，其中调节阀全部从国外进口，这在国内机械设备中是罕见的。 1.1 国产100MW机组 我国在20世纪60年xx始设计制造100MW机组。上海汽轮机厂（简称上汽厂）在1965年生产第1台中问再热100MW机组，于武汉青山电厂首次运行。后来哈尔滨汽轮机厂（哈汽厂）、东方汽轮机厂（东汽厂）和北京重型汽轮电机厂（北重）也相继制造。20世纪70～80年代为国内主要机组之一，至今在全国投入运行的100MW机组已达138台以上。 近十年米，上汽厂又生产了2次抽汽热电两用汽轮机100MW，其中汽轮机系统的调节阀从国外引进，每台8只，锅炉辅机系统的调节阀，部分从国外引进，部分由国内生产。 1.2 国产125MW机组 上汽厂从1969年在吴泾热电厂投运第1台双水内冷125MW机组，至今投运20年的已有108台以上。其余投运，在建订货的超过50余台，这是上汽厂早期的千牌机组。 这种机组的汽轮机系统现在仍从国外引进的调节阀每台10只，还有10余只从国内购货。锅炉与辅机系统有30余只调节阀，也是部分引进，部分国产。 我国{dy}座发电厂，上海杨树浦发电厂，从德国引进2台125MW机组，所有调节阀全部从国外进口，其中锅炉系统的调节阀每台有16只。 上汽厂在引进美国西屋公司技术及国产125MW基础上，最近又系列开发了135～200MW机组，每台机组的汽轮机系统有16只调节阀从国外引进。 随着参数和容量的提高，整个电站系统的调节阀基本上全部从国外引进。 1.3 国产200MW机组 从20世纪70年xx始，哈尔滨汽轮机厂首次在东北朝阳电厂投运200MW机组，后来东汽厂、北重厂也相继制造这种机组，至今在全国投运的已有174台以上，在各种机组中数量占据{zd0}。这种机组的电站调节阀数最显然大于125MW机组，估计在每台50余只以上，原则上从国外引进，其调节阀的数量是十分可观的。 1.4 国产300MW机组 上海汽轮机厂从20世纪70年xx发的国产型4缸4排汽的300MW汽轮机已投运29台。1987年四川东方汽轮机厂也开发了300MW机组，首次在山东黄台电厂投运，至今已安全运行了10余年，在建和订货的也有40余台。 我们在上海石洞口一厂调研了国产改进型300MW机组4台，每台机组的电站调节阀数量是十分可观的。其中锅炉旁路系统调节阀从Gadelins公司每台引进10只，汽机及辅机旁路系统从苏尔寿引进7只，从Masoneipan引进22只，从罔野引进25只，还有从日本东亚引进26只及从Fisher，Leslis等阀门公司引进的。 1.5 引进300MW机组 我国于1981年与美国西屋公司签订了亚临界压力300MW汽轮机技术转让合同，于1987年6月在山东石横电厂第1台投运，现在已有50余台投运，在建及订货的已超过40余台以上。其中汽轮机系统有每台14只调节阀从Fisher和Leslis公司引进，辅机系统从Fisher公司引进每台40只调节阀，锅炉和其他系统就有更多的调节阀从国外引进的。

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原文：
The status of a power station valve Power control valve is mainly distributed in the boiler, turbine and auxiliary power system with three, followed by distribution in a number of ancillary systems. For the parameters of temperature and medium pressure steam generating units generally use a small number of Chinese-made conventional control valve, and for high-parameter, large-capacity thermal power units, and generally more than 100MW units, the introduction of more and more on the use of control valve. Parameters of the higher capacity of the units the greater the thermal power plant control technology, safe and economic operation of the unit as a primary objective, a variety of control valve on the run as an effective means of achieving security. For example, China's Shanghai Power Plant Taiwan hole, 2 parameters of 600MW supercritical generating units, totaling more than 400 used only the various types of control valve and electric valve, spread out in all systems, including control valve all imported from abroad, which in domestic machinery and equipment is rare. 1.1 Domestic 100MW unit My 60 years in the 20th century began to design and manufacture of 100MW unit. Shanghai Steam Turbine Plant (abbreviated SAIC factory) in 1965 produced the first one in Taichung asked reheat 100MW generating units at Castle Peak power plant in Wuhan for the first time to run. Later, Harbin Steam Turbine Plant (Kazakhstan steam plant), Dongfang Steam Turbine Works (East steam plant) and the Beijing Heavy Electric Steam Turbine Plant (North re-) also have manufacturing. The 20th century, 70 to 80 years as one of the major domestic unit has been put into operation the country has reached 138 units over 100MW units. M the last decade, the Shanghai plant also produced two second dual-use extraction steam turbine thermal power 100MW, of which steam turbine control valve system, introduced from abroad, each 8, the boiler auxiliary system control valve, some from abroad, in part by domestic production. 1.2 Domestic 125MW unit SAIC plant in 1969 and put into operation in the Wu Jing Thermal Power Plant No. 1 dual-water-cooling 125MW units has been put into operation for 20 years more than 108 units. The rest put into operation, in order to build more than 50 units, which is the early 1000 SAIC plant licensing unit. The turbine system of this unit is still imported from abroad each control valve 10, there are more than 10 only from the domestic purchases. Boilers and auxiliary systems are more than just regulating valve 30 is also part of the introduction, some homemade. China's first power plants in Shanghai Yangshupu power plants, imported from Germany, 2 sets of 125MW units, all the regulating valve all imported from abroad, which control valve for each boiler system has 16. SAIC plant in the introduction of U.S. technology and domestic 125MW Westinghouse, based on recently developed a series of 135 ~ 200MW units, each unit of steam turbine control valve system 16 from abroad. With the parameters and the capacity to improve, the entire power plant system control valve is basically all from abroad. 1.3 Domestic 200MW unit 70 years beginning from the 20th century, Harbin Steam Turbine Plant for the first time put into operation in the northeast Chaoyang 200MW power plant unit, and later the East steam plant, the North re-factories manufacture the units have so far been shipped across the country cast more than 174 units, in the accounted for the largest number of units in a variety of. Power control valve of this unit is greater than the number of the most obvious 125MW units, estimated at more than 50 each for more than just in principle, introduced from abroad, the number of its control valve is very considerable. 1.4 Domestic 300MW unit Shanghai Steam Turbine Plant from the 20th century developed in 70 years of domestic type 4-cylinder 4 exhaust steam turbine of 300MW has been put into operation 29 sets. 1987 Sichuan Dongfang Steam Turbine Works has also developed a 300MW unit, the first time Taiwan power plant in Shandong Huang put into operation has been running for almost 10 years, there are also under construction orders more than 40 units. We are a factory in Shanghai Shidongkou research has made improved 300MW unit 4 sets, each unit of the power station valve number is very considerable. In which the boiler bypass system valve Gadelins company each from the introduction of 10, and auxiliary steam turbine bypass system from Sulzer introduced seven, from Masoneipan introduced 22, from the introduction of 25 wild monopoly of wisdom, as well as imported from Japan and East Asia 26 and from Fisher, Leslis such as valves introduced. 1.5 introduction of 300MW Unit China and the United States in 1981, Westinghouse signed a sub-critical pressure of 300MW steam turbine technology transfer contract, in June 1987 in Shandong Shiheng Power Plant No. 1 station put into operation, there is already more than 50 units put into operation, under construction, and orders more than 40 units or more. Each turbine system in which there are 14 control valve from Fisher and Leslis's introduction of auxiliary system from Fisher's introduction of each of 40 control valve, boiler and other systems will have more control valve imported from abroad.