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锅炉设备性能要求
翻译:Performance requirements of boiler equipments
1)锅炉带基本负荷,并具有一定的调峰能力。
翻译:The boiler shall be able to bear the basic load and shall be offered with certain capacity for peak adjustment.
2)锅炉既可采用定-滑-定方式运行,也可采用定压方式运行。卖方应分别提供两种不同运行方式下的极热态、热态、温态、冷态启动特性曲线、冷态停炉曲线和压力-负荷曲线。
翻译:Startup and operating shall be enabled in both the FP-SP-FP and the FP modes. The Seller shall the startup characteristic curves in extremely hot, hot, warm, and cold statuses, the cold status shutdown curve, and the pressure-load curve for both modes.
3)锅炉应能适应设计煤种和两种校核煤种。燃用设计煤种,锅炉负荷在汽机额定工况至100%B-MCR范围内运行时,锅炉保证热效率应大于93%(按低位发热量计算)。
翻译:The boilers shall suit both the designed and the verified coals. When the designed coal is combusted, the guaranteed thermal efficiency of the boilers shall be more than 93% (low heat value) provided that the load of the boilers is between the rated mode of the steam turbines and the 100%B-MCR.

4)锅炉的设计应考虑设计煤种和校核煤种单独燃烧和混煤燃烧。
翻译:The boilers shall be designed to combust the designed and the verified coals individually and both coals together.
5)锅炉启动时再热器应允许干烧,并提供再热器允许干烧的温度。
翻译:Steam-free heating of the reheater shall be permitted during boiler startup and the temperature under which such heating is allowable shall be offered.
6)在高压加热器全部停止运行时,锅炉的蒸汽参数应能保持在额定值,各受热面不超温,蒸发量能满足汽轮机在此条件下达到铭牌出力要求。
翻译:When all the high-pressure heaters are stopped, the steam parameters of the boilers shall maintain at their ratings. No heating surface may be overheated and the steam output shall be enough for the turbines to offer the nominal output.
7)锅炉在不投油助燃时,最低稳燃负荷不应大于锅炉30%B-MCR。锅炉在此负荷下应能长期稳定安全运行。
翻译:When no oil is used to support the combustion in the boilers, the lowest steady combustion load shall be no more than 30% of the boiler B-MCR. Under such a load the boilers shall be able to run safely and steadily in long-term.
8)锅炉的设计应考虑到能在单台空气预热器工作情况下连续运行。当单台空气预热器运行时,锅炉能达到60%B-MCR负荷。
翻译:The boilers shall be designed to allow continuous running even when only a single air preheater is in operation. In such a case, the boilers shall be able to reach 60% of its B-MCR.
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