单室平衡容器汽包水位计算方法

锅炉汽包水位补偿(单室平衡容器)、测量原理：炉汽包水位测量原理图如图2所示。差压式水位表和汽包水位之间的关系如下所示:△P=H*pa-(A-h)*ps-((H-(A-h))*pw=H*(pa-pw)+(A-h)*(pw-ps)(1)式中：H水侧取样孔与平衡容器的距离，mm;A平衡容器与汽包正常水位的距离，mm;h汽包水位偏离正常水位的值，mm;△P对应汽包水位的差压值，mmH2O;ps饱和蒸汽的密度，kg*103=/m3;pw饱和水的密度，kg*103=/m3;pa参比水柱的密度，kg*103=/m3;上式中，H、A和B都是常数；pw、ps是汽压的函数，在特定汽压下均为定值；平衡容器内汽水的密度pa与其散热条件和环境温度有关。在锅炉启动过程中，水温略有升高，压力也同时升高，这两方面的变化对pa的影响基本上抵消，可以近似认为pa是恒值。根据(1)有如下：h=A-AP*/(pw-ps)+H*(pa-pw)/(pw-ps)=A-(AP-H*(pa-pw))*/(pw-ps)(3)令F1(X)=(pa-pw)；F2(X)=1//(pw-ps)；二、补偿逻辑框图：

三、F1(X)/F2(X)参数表:单室平衡容器汽包压力(MPa)F1(x)F2(x)001.010.10057496111364474431.1958769930.163784021.24393479840.187009151.2893729560.2270438271.37975473780.2627263991.476356555100.2964214751.585724387120.3296781491.716322335140.3636855731.881343919160.4001311122.107555006180.4418569032.460268331饱和水比焓饱和水比熵饱和水比容HLSLVL饱和汽比焓饱和汽比熵饱和汽比容饱和水比焓饱和水比熵饱和水比容HLSLVL饱和汽比焓饱和汽比熵饱和汽比容HGSGVG饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1545.45m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265p饱和水折射率NL=1.3756饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=472.05m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NG压力P=0.10000000MPa温度T=99.61C干度X=不确定！=417.44kJ/kg=1.3026kJ/(kg.C)=0.0010431mA3/kgCPL=4.2161kJ/(kg.C)CVL=3.7697kJ/(kg.C)=417.33kJ/kgKSL=22896.2915ETAL=282.92E-6kg/(m.s)UL=0.2951E-6(mA2/s)RAMDL=678.9716E-3W/(m.C)PRNL=1.7568EPSL=55.6283m时，=2674.95kJ/kg=7.3588kJ/(kg.°C)=1.6940225mA3/kgCPG=2.0759kJ/(kg.C)CVG=1.5527kJ/(kg.C)=2505.55kJ/kgKSG=1.3154ETAG=12.26E-6kg/(m.s)UG=20.7616E-6(mA2/s)RAMDG=25.05E-3W/(m.C)PRNG=1.0155EPSG=1.0058m时，=1.0002压力P=1.10000000MPa温度T=184.07C干度X=不确定！饱和水比焓HL=781.20kJ/kg饱和水比熵SL=2.1789kJ/(kg.C)饱和水比容VL=0.0011330mA3/kg饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1379.78m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1379.78m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数KSL=1527.5683ETAL=146.62E-6kg/(m.s)UL=0.1661E-6(mA2/s)RAMDL=671.5733E-3W/(m.C)PRNL=0.9654EPSL=37.5030当给定波长为:0.2265饱和水折射率NL当给定波长为:0.2265饱和水折射率NL=1.3433饱和汽比焓饱和汽比熵饱和汽比容HGSG饱和汽比焓饱和汽比熵饱和汽比容HGSGVG=6.5520kJ/(kg.°C)=0.1774358mA3/kgCPG=2.7678kJ/(kg.C)CVG=1.9579kJ/(kg.C)=2585.49kJ/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速CPG=2.7678kJ/(kg.C)CVG=1.9579kJ/(kg.C)=2585.49kJ/kg饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NGUG=2.6909E-6(mA2/s)RAMDG=37.16E-3W/(m.°C)PRNG=1.1293EPSG=1.0467m时，=1.0021压力P=2.10000000MPa温度T=214.87C干度X=不确定！饱和水比焓HL=919.99kJ/kg饱和水比熵SL=2.4701kJ/(kg.C)饱和水比容VL=0.0011810mA3/kg区域为：区间4;湿蒸汽或饱和线饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1282.01m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数CPL=4.5775kJ/(kg.C)CVL=3.2625kJ/(kg.C)=917.51kJ/kg当给定波长为:0.2265p饱和水折射率NLKSL=662.6729ETAL=124.57E-6kg/(m.s)UL=0.1471E-6(mA2/s)RAMDL=653.5360E-3W/(m.C)PRNL=0.8725EPSL=32.3080m时，=1.3283饱和汽比焓HG=2799.36kJ/kg饱和汽比熵SG=6.3212kJ/(kg.°C)饱和汽比容VG=0.0949339mA3/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=504.73m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=504.73m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数KSG=1.2778ETAG=16.23E-6kg/(m.s)UG=1.5409E-6(mA2/s)RAMDG=43.09E-3W/(m.C)PRNG=1.2181EPSG=1.0835当给定波长为:0.2265饱和汽折射率当给定波长为:0.2265饱和汽折射率NG=1.0039区域为：区间4;湿蒸汽或饱和线压力温度干度P=3.10000000MPaT=235.68CX=不确定！饱和水比焓饱和水比熵饱和水比容HL=1017.00kJ/kgSL=2.6624kJ/(kg.C)VL=0.0012204mA3/kg饱和水定压比热CPL=4.7290kJ/(kg.C)

饱和水定容比热CVL=3.1934kJ/(kg.C)饱和水内能EL=1013.22kJ/kg饱和水音速SSPL=1205.69m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数KSL=饱和水定容比热CVL=3.1934kJ/(kg.C)饱和水内能EL=1013.22kJ/kg饱和水音速SSPL=1205.69m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265p饱和水折射率NL=当给定波长为:0.2265p饱和水折射率NL=1.3170饱和汽比焓饱和汽比熵饱和汽比容HGSGVG=6.1729kJ/(kg.°C)=0.0645044mA3/kgCPG=3.6534kJ/(kg.C)CVG=2.3434kJ/(kg.C)=2603.32kJ/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=503.89m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数KSG=1.2697ETAG=16.97E-6kg/(m.s)UG=1.0945E-6(mA2/s)RAMDG=47.69E-3W/(m.C)PRNG=饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=503.89m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1140.76m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265p饱和水折射率NL=1.3075饱和汽比焓饱和汽比熵饱和汽比容HGSGVG饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=501.34m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NG压力P=4.10000000MPa温度T=251.83C干度X=不确定！饱和水比焓HL=1094.58kJ/kg饱和水比熵SL=2.8101kJ/(kg.C)饱和水比容VL=0.0012560mA3/kgCPL=4.8847kJ/(kg.C)CVL=3.1463kJ/(kg.C)=1089.43kJ/kgKSL=252.7025ETAL=105.28E-6kg/(m.s)UL=0.1322E-6(mA2/s)RAMDL=618.9728E-3W/(m.C)PRNL=0.8308EPSL=26.7374m时，=2800.39kJ/kg=6.0594kJ/(kg.°C)=0.0485259mA3/kgCPG=4.0628kJ/(kg.C)CVG=2.4813kJ/(kg.C)=2601.44kJ/kgKSG=1.2633ETAG=17.56E-6kg/(m.s)UG=0.8523E-6(mA2/s)RAMDG=51.75E-3W/(m.C)PRNG=1.3787EPSG=1.1574m时，=1.0075

区域为：区间4;湿蒸汽或饱和线压力温度干度P=6.10000000MPaT=276.67CX=不确定！饱和水比焓饱和水比熵饱和水比容HL=1219.32kJ/kgSL=3.0374kJ/(kg.C)VL=0.0013225mA3/kg饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1029.64m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数CPL=5.2264kJ/(kg.C)CVL=3.0873kJ/(kg.C)=1211.25kJ/kgKSL=131.4129ETAL=94.82E-6kg/(m.s)UL=0.1254E-6(mA2/s)RAMDL=585.3508E-3饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=1029.64m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265饱和水折射率NL=1.2911饱和汽比焓饱和汽比熵饱和汽比容HGSG饱和汽比焓饱和汽比熵饱和汽比容HGSGVG=5.8822kJ/(kg.°C)=0.0318703mA3/kgCPG=4.9226kJ/(kg.C)CVG=2.7130kJ/(kg.C)=2589.05kJ/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速CPG=4.9226kJ/(kg.C)CVG=2.7130kJ/(kg.C)=2589.05kJ/kg饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NGUG=0.5914E-6(mA2/s)RAMDG=59.39E-3W/(m.°C)PRNG=1.5377EPSG=1.2371m时，=1.0115压力P=8.10000000MPa温度T=295.88C干度X=不确定！饱和水比焓HL=1321.86kJ/kg饱和水比熵SL=3.2158kJ/(kg.C)饱和水比容VL=0.0013880mA3/kg区域为：区间4;湿蒸汽或饱和线饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=932.07m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数CPL=5.6367kJ/(kg.C)CVL=3.0569kJ/(kg.C)=1310.62kJ/kg当给定波长为:0.2265p饱和水折射率NLKSL=77.2740ETAL=87.44E-6kg/(m.s)UL=0.1214E-6(mA2/s)RAMDL=551.6082E-3W/(m.C)PRNL=0.8935EPSL=20.6873m时，=1.2766饱和汽比焓HG=2757.12kJ/kg饱和汽比熵SG=5.7381kJ/(kg.°C)饱和汽比容VG=0.0231922mA3/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=483.53m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数CPG=5.9393kJ/(kg.C)CVG=2.9228kJ/(kg.C)=2569.26kJ/kgKSG=1.2446ETAG=19.44E-6kg/(m.s)UG=0.4509E-6(mA2/s)RAMDG=饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=483.53m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265饱和汽折射率NG压力P=10.10000000MPa温度T=311.73C干度X=不确定！区域为：区间4;湿蒸汽或饱和线饱和水比焓饱和水比熵饱和水比容=1.0157HL=1412.18kJ/kgSL=3.3674kJ/(kg.C)VL=0.0014561mA3/kg饱和水定压比热CPL=6.1570kJ/(kg.C)

饱和水定容比热CVL=3.0438kJ/(kg.C)饱和水内能EL=1397.47kJ/kg饱和水音速SSPL=843.51m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度区域为：区间4;湿蒸汽或饱和线饱和水比焓饱和水比熵饱和水比容饱和水定容比热CVL=3.0438kJ/(kg.C)饱和水内能EL=1397.47kJ/kg饱和水音速SSPL=843.51m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265p饱和水折射率NL=当给定波长为:0.2265p饱和水折射率NL=1.2630饱和汽比焓饱和汽比熵饱和汽比容HGSGVG=5.6097kJ/(kg.°C)=0.0178128mA3/kgCPG=7.2193kJ/(kg.C)CVG=3.1217kJ/(kg.C)=2543.73kJ/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=471.82m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数KSG=1.2374ETAG=20.31E-6kg/(m.s)UG=0.3618E-6(mA2/s)RAMDG=77.06E-3W/(m.C)PRNG=饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=471.82m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=761.55m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265p饱和水折射率NL=1.2496饱和汽比焓饱和汽比熵饱和汽比容HGSGVG饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=458.78m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NG压力P=12.10000000MPa温度T=325.31C干度X=不确定！饱和水比焓HL=1495.37kJ/kg饱和水比熵SL=3.5030kJ/(kg.C)饱和水比容VL=0.0015302mA3/kgCPL=6.8534kJ/(kg.C)CVL=3.0439kJ/(kg.C)=1476.86kJ/kgKSL=31.3222ETAL=76.37E-6kg/(m.s)UL=0.1169E-6(mA2/s)RAMDL=481.8994E-3W/(m.C)PRNL=1.0861EPSL=16.7079m时，=2683.40kJ/kg=5.4881kJ/(kg.°C)=0.0141107mA3/kgCPG=8.9183kJ/(kg.C)CVG=3.3083kJ/(kg.C)=2512.66kJ/kgKSG=1.2328ETAG=21.23E-6kg/(m.s)UG=0.2996E-6(mA2/s)RAMDG=89.25E-3W/(m.C)PRNG=2.1205EPSG=1.5548m时，=1.0259

区域为：区间4;湿蒸汽或饱和线压力温度干度P=14.10000000MPaT=337.23CX=不确定！饱和水比焓饱和水比熵饱和水比容HL=1574.81kJ/kgSL=3.6292kJ/(kg.C)VL=0.0016142mA3/kg饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=678.56m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数CPL=7.8748kJ/(kg.C)CVL=3.0716kJ/(kg.C)=1552.05kJ/kgKSL=20.2297ETAL=71.60E-6kg/(m.s)UL=0.1156E-6(mA2/s)RAMDL=445.5503E-3饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=678.56m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数当给定波长为:0.2265饱和水折射率NL=1.2361饱和汽比焓饱和汽比熵饱和汽比容HGSG饱和汽比焓饱和汽比熵饱和汽比容HGSGVG=5.3669kJ/(kg.°C)=0.0113679mA3/kgCPG=11.4134kJ/(kg.C)CVG=3.4951kJ/(kg.C)=2475.20kJ/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速CPG=11.4134kJ/(kg.C)CVG=3.4951kJ/(kg.C)=2475.20kJ/kg饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数当给定波长为:0.2265p饱和汽折射率NGUG=0.2531E-6(mA2/s)RAMDG=105.76E-3W/(m.C)PRNG=2.4014EPSG=1.7098m时，=1.0322压力P=16.10000000MPa温度T=347.86C干度X=不确定！饱和水比焓HL=1653.66kJ/kg饱和水比熵SL=3.7518kJ/(kg.C)饱和水比容VL=0.0017151mA3/kg区域为:区间4;湿蒸汽或饱和线饱和水定压比热饱和水定容比热饱和水内能EL饱和水音速SSPL=593.64m/s饱和水定熵指数饱和水动力粘度饱和水运动粘度饱和水导热系数饱和水普朗特数饱和水介电常数CPL=9.5841kJ/(kg.°C)CVL=3.1363kJ/(kg.C)=1626.04kJ/kg当给定波长为:0.2265p饱和水折射率NLKSL=12.7618ETAL=66.90E-6kg/(m.s)UL=0.1147E-6(mA2/s)RAMDL=407.9181E-3W/(m.C)PRNL=1.5719EPSL=13.3912m时，=1.2216饱和汽比焓HG饱和汽比熵SG饱和汽比容VG

=2577.62kJ/kg=5.2397kJ/(kg.°C)=0.0092104mA3/kg饱和汽定压比热饱和汽定容比热饱和汽内能EG饱和汽音速SSPG=428.35m/s饱和汽定熵指数饱和汽动力粘度饱和汽运动粘度饱和汽导热系数饱和汽普朗特数饱和汽介电常数CPG=15.4633kJ/(kg