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发热量是评价燃料质量的一项重要指标,是锅炉设计、热平衡、煤耗和热效率计算及动力用煤计价的依据。目前,国内外测定燃料发热量均用氧弹热量计。氧弹热量计是1880年由Berthelot首先引入的。最早的氧弹其内壁和氧弹帽内壁都镀铂,氧弹帽是用大扳手将其紧固在氧弹上,试样放在充有高压氧的氧弹内燃烧。搅拌器是由许多环形铜片组成,上下往复移动。此后,不断改进,如将往复式搅拌改为旋浆式搅拌,提高效率,缩短内筒温度平衡时间;又如氧弹帽由紧固式改为手拧密封式;进气阀和放气阀也都作了改进。
The calorific value is an important index to evaluate the fuel quality, and is the basis of the boiler design, thermal balance, coal consumption and thermal efficiency calculation and coal price calculation of power. At present, the determination of fuel heat at home and abroad are used oxygen bomb calorimeter. Oxygen bomb calorimeter was first introduced in 1880 by Berthelot. The earliest oxygen bombs were coated with platinum on the inner walls and the inner walls of the oxygen bomb cap. The oxygen bomb cap was fastened to the oxygen bomb using a large wrench, and the specimen was burned in an oxygen bomb filled with hyperbaric oxygen. Stirrer is composed of many ring-shaped copper, reciprocating up and down. Since then, continuous improvement, such as changing the reciprocating stirring propeller stirring to improve efficiency and shorten the temperature of the inner cylinder equilibration time; Another example is the oxygen bomb cap from the fastening to hand-screw sealed; intake valve and the purge valve Also made improvements.