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本文对联合循环电站控制设计进行了探讨,提出适合国情的半自动化站控思想,对联合循环电站运行方式的转换和站级协调控制进行了论述。 相似文献
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燃气-蒸汽联合循环电站控制设计探讨 总被引:1,自引:1,他引:0
本文对联合循环电站控制设计进行了探讨,提出适合国情的半自动化站控思想,对联合循环电站运行方式的转换和站级协调控制进行了论述. 相似文献
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不同的燃气轮机调控方案对燃气—蒸汽联合循环电站性能的影响 总被引:5,自引:0,他引:5
以某燃气-蒸汽联合循环电站的主要配置 基础,计算并分析比较了在改变燃料 量和调节压气机可转导叶等不同调控方案对燃气-蒸联合循环各3个组成部分及总体性能的影响,从而为燃气-蒸汽联合循环电站合理选择燃气轮机调控方案提供有意义的参考。 相似文献
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在科技参考文献[1、2]中,通常对蒸汽-燃气联合循环装置引用正计算的指标.然而,在运行条件下实际能够达到的蒸汽-燃气联合装置的指标与它们的正计算值有本质的差别.根据参考文献[2]中的数据,在透平前的燃气温度为1092℃,蒸汽轮机前的蒸汽参数为5.4MPa,500℃下,世界上最大功率最经济的日本东新泻工业港火力发电站蒸汽-燃气联合循环电站的效率达46.5%.尽管燃气温度继续升高到1154℃,蒸汽压力上升到6.4MPa,与正计算值比较,效率的保证值下降比性能较好的蒸汽动力装 相似文献
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联合循环电站中余热锅炉主要参数的计算与选择 总被引:6,自引:0,他引:6
结合PG9171(E)燃气轮机的排气参数,对联合循环电站(S109E)中余热锅炉参数的选取进行计算,并运行这些计算结果与常规火电机组相应的参数进行对比分析,给出余热锅炉参数的选择建议。 相似文献
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《动力工程》1987,(6)
DG1000/170-1.型亚临界压力自然 综述及一般问题 循环锅炉的设计和运行6 二我国电站沸腾燃烧锅炉的发展 二27 预燃室中煤粉火焰稳定原理6 16开发超临界火电机组振兴电站建设 汽轮机 和发电设备制造工业 31 我国研制的新型“*二”型调节阀 115国外煤气化联合循环电站的发展概 配合优化设计叶栅的逐线展开法3u 况 S7 再论汽轮机组配置平衡重量的合理网机关系及其协调 车 1 性 3 28美国燃烧工程公司电站锅炉的汽水 考虑支承柔度的轮系振动计算33鼻 品质管理 鼻34 辅助汽轮机驱动的运行方式 伞28美国电站锅炉的性能试验4 刊 消除汽轮机调节阀… 相似文献
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蒸汽-燃气联合循环装置由于其较高的发电效率而被广泛应用于各大、中型电厂。然而,在微小型燃气-蒸汽发电装置中,蒸汽轮机的应用无疑使得装置体积和成本费用大增。因此,本文提出在小型分布式发电装置中,采用环境压力吸热燃气轮机循环(APGC)装置来替代蒸汽轮机装置吸收燃气轮机排出的废气能量,组成燃-燃联合循环,增加系统本身的做功能力和效率,达到节能、减少燃料消耗的目的。本文从热力学第一定律和第二定律出发,基于ASPENPLUS软件分别建立了燃-燃联合循环、蒸-燃联合循环模型,比较分析了两种循环装置在能量质量和数量上的利用程度。结果表明:燃-燃联合循环装置的效率较高,这在要求能源高效利用的今天具有一定的理论意义。 相似文献
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In the present paper thermodynamic analyses, i.e. both energy and exergy analyses have been conducted for a coal based combined cycle power plant, which consists of pressurized circulating fluidized bed (PCFB) partial gasification unit and an atmospheric circulating fluidized bed (ACFB) char combustion unit. Dual pressure steam cycle is considered for the bottoming cycle to reduce irreversibilities during heat transfer from gas to water/steam. The effect of operating variables such as pressure ratio, gas turbine inlet temperature on the performance of combined cycle power plant has been investigated. The pressure ratio and maximum temperature (gas turbine inlet temperature) are identified as the dominant parameters having impact on the combined cycle plant performance. The work output of the topping cycle is found to increase with pressure ratio, while for the bottoming cycle it decreases. However, for the same gas turbine inlet temperature the overall work output of the combined cycle plant increases up to a certain pressure ratio, and thereafter not much increase is observed. The entropy generation, the irreversibilities in each component of the combined cycle and the exergy destruction/losses are also estimated. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
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The attractive features of a combined cycle (CC) power plant are fuel flexibility, operational flexibility, higher efficiency and low emissions. The performance of five gas turbine‐steam turbine (GT‐ST) combined cycle power plants (four natural gas based plants and one biomass based plant) have been studied and the degree of augmentation has been compared. They are (i) combined cycle with natural gas (CC‐NG), (ii) combined cycle with water injection (CC‐WI), (iii) combined cycle with steam injection (CC‐SI), (iv) combined cycle with supplementary firing (CC‐SF) and (v) combined cycle with biomass gasification (CC‐BM). The plant performance and CO2 emissions are compared with a change in compressor pressure ratio and gas turbine inlet temperature (GTIT). The optimum pressure ratio for compressor is selected from maximum efficiency condition. The specific power, thermal efficiency and CO2 emissions of augmented power plants are compared with the CC‐NG power plant at the individual optimized pressure ratios in place of a common pressure ratio. The results show that the optimum pressure ratio is increased with water injection, steam injection, supplementary firing and biomass gasification. The specific power is increased in all the plants with a loss in thermal efficiency and rise in CO2 emissions compared to CC‐NG plant. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
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介绍了由PG6581B燃气轮机构成的焦载热部分气化燃煤联合循环系统的结构和特点,并对PG6581B燃气轮机燃用中低热值煤气的性能进行了计算和分析。计算结果表明,燃用中低热值煤气后,PG6581B的功率与效率均有所下降,但在可接受的范围内。选一步分析后得出:降低煤气中CO2和N2等不可燃成分的含量,提高可燃部分中H2的含量可提高燃气轮机的性能。对该联合循环系统的初步计算表明,应用了PG6581B燃气轮机的焦载热部分气化燃煤联合循环系统的热效率可以达到42%以上。 相似文献
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结合遗传算法理论,提出联合循环电站余热锅炉的参数优化设计模型,针对一定型号的燃气轮机,给出了相应的优化实例。结果表明,利用上述计算模型可以得到余热锅炉的最优设计参数,使联合循环电站的经济性达到最佳。表4参7 相似文献
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对9FA燃机联合循环性能试验中的一些问题进行了分析,如性能的修正、余热锅炉的性能考核、责任分摊等,并给出了作者的看法,供同行参考。 相似文献