热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2014年
11期
1-5
,共5页
锅炉%低热值煤%掺烧%煤耗%检修费%排污费%锅炉效率
鍋爐%低熱值煤%摻燒%煤耗%檢脩費%排汙費%鍋爐效率
과로%저열치매%참소%매모%검수비%배오비%과로효솔
boiler%low calorific coal%blending combustion%coal consumption rate%recondition expense%pollu-tion charge%heat efficiency
低热值煤种掺烧对锅炉效率、厂用电率、供电煤耗、污染物排放、检修维护费、堆场热值损失及配煤成本等均有一定的影响，在评估低热值煤掺烧的经济效益时应综合考虑这些因素，以确定综合发电成本和利润.对某电厂的实际计算结果表明，当低热值烟煤与电厂常用煤的标煤差价分别在100、90元/t以上时，每年分别掺烧相当于标煤13．6％、10％比例的低热值烟煤，可能实现综合发电成本的经济性平衡，为电厂带来一定的经济效益.
低熱值煤種摻燒對鍋爐效率、廠用電率、供電煤耗、汙染物排放、檢脩維護費、堆場熱值損失及配煤成本等均有一定的影響，在評估低熱值煤摻燒的經濟效益時應綜閤攷慮這些因素，以確定綜閤髮電成本和利潤.對某電廠的實際計算結果錶明，噹低熱值煙煤與電廠常用煤的標煤差價分彆在100、90元/t以上時，每年分彆摻燒相噹于標煤13．6％、10％比例的低熱值煙煤，可能實現綜閤髮電成本的經濟性平衡，為電廠帶來一定的經濟效益.
저열치매충참소대과로효솔、엄용전솔、공전매모、오염물배방、검수유호비、퇴장열치손실급배매성본등균유일정적영향，재평고저열치매참소적경제효익시응종합고필저사인소，이학정종합발전성본화리윤.대모전엄적실제계산결과표명，당저열치연매여전엄상용매적표매차개분별재100、90원/t이상시，매년분별참소상당우표매13．6％、10％비례적저열치연매，가능실현종합발전성본적경제성평형，위전엄대래일정적경제효익.
Co-firing with low calorific coal in power plants has a certain effect on boiler efficiency,auxiliary power consumption rate,pollutant emission,maintenance cost,storage yard heat loss,coal blending cost and other indexes.During economic benefit evaluation for low calorific coal mixed burning,the effects of all a-bove factors should be comprehensively considered,to ascertain the comprehensive power generation cost and benefits.The practical calculation for a power plant shows that,when the standard coal price difference between the low calorific bituminous coal and commonly used coal is greater than 100 yuan/t and 90 yuan/t,co-firing the low calorific bituminous coal with 13.6% and 10% of the standard coal amount can realize economic balance of the power generation cost,respectively.
