300mw火电厂机务部分局部设计

3029.6Р3329.4Р3133.9Р2926.3Р2758.8Р2662.5Р2520Р2716Р2358.6Р抽汽压损△pР%Р6Р6Р6Р8Р6Р6Р6Р6Р加热器压力p′РMpaР5.6Р3.44Р1.57Р0.757Р0.28Р0.127Р0.069Р0.0245Рp′压力下的饱和水温度Р℃Р270.9Р241.5Р200.4Р168.1Р130.9Р105.2Р89.6Р64.5Р99.1Р34.3Рp′压力下的饱和水焓РkJ/kgР1190.2Р1045Р854.4Р717.5Р550.1Р441.1Р375.1Р270.1Р418.8Р143.5Р抽汽放热q=h-РkJ/kgР1952.1Р1984.6Р2475Р2422.4Р2376.2Р2317.7Р2287.4Р2249.9Р2297.2Р2215.1Р水侧Р传热端差δtР℃Р1Р1Р1Р0Р3Р3Р3Р3Р0Р加热器出口水温tjР℃Р271.9Р242.5Р201.4Р169.1Р131.9Р106.2Р90.6Р65.5Р34.3Р加热器出口水焓РkJ/kgР1181.5Р1040.7Р861.2Р711.5Р538.3Р429.4Р363.9Р258.6Р149.8Р加热器进口水温tj+1Р℃Р242.5Р201.4Р169.1Р131.9Р106.2Р90.6Р65.5Р34.3Р加热器进口水焓РkJ/kgР1040.7Р861.2Р711.5Р538.3Р429.4Р363.9Р258.6Р149.8Р给水焓升РkJ/kgР140.8Р179.5Р138.5Р173.2Р108.9Р65.5Р106.3Р108.8Р4.6Р3.6 汽轮机热力过程线的绘制Р 由设计的第一部分确定的主蒸汽参数,以及经过主汽门和调节汽门对蒸汽的压损和各段抽汽蒸汽参数,从而绘制汽轮机热力过程线如下图3-2所示: