单室平衡容器汽包水位计算方法

1、锅炉汽包水位补偿(单室平衡容器)一、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*p a-(A-h)* p s-(H-(A-h)* p w=H*( p a- p w)+(A-h)* ( p w- p s) (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，mmH20;3p s饱和蒸汽的密度，kg*10 =/m3;p w饱和水的密度，kg*10 =/m3;p a参比水柱的密度，kg*10 =/m3;上式中，H、A和B都是常数；p w p s是汽压

2、的函数，在特定汽压下均为定值；平衡容器内汽水的密度p a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p a的影响基本上抵消，可以近似认为p a是恒值 根据(1)有如下：h = A- P*/( p w- p s)+H*( p a- p w)/ ( p w- p s)=A-( P-H*( p a- p w)* /( p w- p s)令 F1(X)=( p a- p w)； F2(X)=1/( p w-p s)；二、补偿逻辑框图：、F1(X)/F2(X)参数表：单室平衡容器汽包压力(MPa)F1( x)F2( x)001.010.1005749611

3、1364474431.1958769930.163784021.24393479840.187009151.2893729560.2270438271.37975473780.2627263991.476356555100.2964214751.585724387120.3296781491.716322335140.3636855731.881343919160.4001311122.107555006180.4418569032.460268331PRNL = 1.7568EPSL = 55.6283区域为：区间 4; 湿蒸汽或饱和线压力P= 0.10000000

4、 MPa温度T=99.61 C干度X= 不确定！饱和水比焓HL= 417.44 kJ/kg饱和水比熵SL=1.3026 kJ/(kg. C )饱和水比容VL=0.0010431 mA3/kg饱和水定压比热CPL= 4.2161 kJ/(kg.C)饱和水定容比热CVL= 3.7697 kJ/(kg.C)饱和水内能EL = 417.33 kJ/kg饱和水音速SSPL = 1545.45 m/s饱和水定熵指数KSL= 22896.2915饱和水动力粘度ETAL =282.92E-6 kg/(m.s)饱和水运动粘度UL= 0.2951E-6 (mA2/s)饱和水导热系数RAMDL= 678.9716E

5、-3 W/(m饱和水普朗特数饱和水介电常数C)当给定波长为：0.2265卩m时, 饱和水折射率 NL = 1.3756饱和汽比焓HG= 2674.95 kJ/kg饱和汽比熵SG= 7.3588 kJ/(kg.C)饱和汽比容VG= 1.6940225 mA3/kg饱和汽定容比热CVG= 1.5527 kJ/(kg. C )饱和汽内能EG = 2505.55 kJ/kg饱和汽音速SSPG = 472.05 m/s饱和汽定熵指数KSG= 1.3154饱和汽动力粘度ETAG =12.26E-6 kg/(m.s)饱和汽运动粘度UG=20.7616E-6 (mA2/s)饱和汽导热系数RAMDG= 25.0

6、5E-3 W/(m. C )饱和汽普朗特数PRNG =1.0155饱和汽介电常数EPSG =1.0058当给定波长为 :0.2265 m时，饱和汽折射率NG1.0002区域为：区间 4; 湿蒸汽或饱和线压力P= 1.10000000 MPa温度T= 184.07 C干度X= 不确定！饱和水比焓HL= 781.20 kJ/kg饱和水比熵SL= 2.1789 kJ/(kg. C )饱和水比容VL= 0.0011330 mA3/kg饱和水定压比热CPL = 4.4217 kJ/(kg. C )饱和水定容比热CVL = 3.3796 kJ/(kg. C)饱和水内能EL = 779.95 kJ/kg饱和

7、水音速SSPL = 1379.78 m/s饱和水定熵指数KSL= 1527.5683饱和水动力粘度ETAL =146.62E-6 kg/(m.s)饱和水运动粘度UL= 0.1661E-6 (mA2/s)饱和水导热系数RAMDL= 671.5733E-3 W/(m. C )饱和水普朗特数饱和水介电常数PRNL = 0.9654EPSL = 37.5030当给定波长为：0.2265卩m时, 饱和水折射率 NL = 1.3433饱和汽比焓HG= 2780.67 kJ/kg饱和汽比熵SG= 6.5520 kJ/(kg. C )饱和汽比容VG=0.1774358 mA3/kg饱和汽定压比热CPG2.76

8、78 kJ/(kg. C )饱和汽定容比热CVG= 1.9579 kJ/(kg. C )饱和汽内能EG = 2585.49 kJ/kg饱和汽音速SSPG = 501.66 m/s饱和汽定熵指数KSG= 1.2894饱和汽动力粘度ETAG =15.17E-6 kg/(m.s)饱和汽运动粘度UG2.6909E-6 (mA2/s)饱和汽导热系数RAMDG= 37.16E-3 W/(m. C)饱和汽普朗特数PRNG =1.1293饱和汽介电常数EPSG =1.0467当给定波长为 ：0.2265 m时，饱和汽折射率NG1.0021区域为：区间 4; 湿蒸汽或饱和线压力P= 2.10000000 MPa

9、温度T= 214.87 C干度X= 不确定！饱和水比焓HL= 919.99 kJ/kg饱和水比熵SL=2.4701 kJ/(kg. C )饱和水比容VL=0.0011810 mA3/kg饱和水定压比热CPL= 4.5775 kJ/(kg. C )饱和水定容比热CVL= 3.2625 kJ/(kg. C )饱和水内能EL = 917.51 kJ/kg饱和水音速SSPL = 1282.01 m/s饱和水定熵指数KSL= 662.6729饱和水动力粘度ETAL =124.57E-6 kg/(m.s)饱和水运动粘度UL= 0.1471E-6 (mA2/s)饱和水导热系数RAMDL= 653.5360E

10、-3 W/(m. C )饱和水普朗特数饱和水介电常数PRNL = 0.8725EPSL = 32.3080当给定波长为：0.2265卩m时, 饱和水折射率 NL = 1.3283饱和汽比焓HG= 2799.36 kJ/kg饱和汽比熵SG= 6.3212 kJ/(kg.C)饱和汽比容VG= 0.0949339 mA3/kg饱和汽定压比热CPG3.2339 kJ/(kg. C )饱和汽定容比热CVG= 2.1775 kJ/(kg.C)饱和汽内能EG = 2600.00 kJ/kg饱和汽音速SSPG = 504.73 m/s饱和汽定熵指数KSG= 1.2778饱和汽动力粘度ETAG =16.23E-

11、6 kg/(m.s)饱和汽运动粘度UG1.5409E-6 (mA2/s)饱和汽导热系数RAMDG= 43.09E-3 W/(m. C )饱和汽普朗特数PRNG =1.2181饱和汽介电常数EPSG =1.0835当给定波长为 ：0.2265 m时，饱和汽折射率NG1.0039区域为：区间 4; 湿蒸汽或饱和线压力P= 3.10000000 MPa温度T=235.68 C干度X= 不确定！饱和水比焓HL= 1017.00 kJ/kg饱和水比熵SL=2.6624 kJ/(kg. C )饱和水比容VL=0.0012204 mA3/kg饱和水定压比热CPL= 4.7290 kJ/(kg.C)饱和水定容

12、比热CVL= 3.1934 kJ/(kg.C)饱和水内能EL = 1013.22 kJ/kg饱和水音速SSPL = 1205.69 m/s饱和水定熵指数KSL= 384.2339饱和水动力粘度ETAL =113.01E-6 kg/(m.s)饱和水运动粘度UL= 0.1379E-6 (mA2/s)饱和水导热系数RAMDL= 636.0408E-3 W/(m. C )饱和水普朗特数饱和水介电常数PRNL = 0.8402EPSL = 29.0959当给定波长为：0.2265卩m时, 饱和水折射率 NL = 1.3170饱和汽比焓HG= 2803.28 kJ/kg饱和汽比熵SG= 6.1729 kJ

13、/(kg.C)饱和汽比容VG= 0.0645044 mA3/kg饱和汽定压比热CPG= 3.6534 kJ/(kg. C )饱和汽定容比热CVG= 2.3434 kJ/(kg.C)饱和汽内能EG = 2603.32 kJ/kg饱和汽音速SSPG = 503.89 m/s饱和汽定熵指数KSG= 1.2697饱和汽动力粘度ETAG =16.97E-6 kg/(m.s)饱和汽运动粘度UG= 1.0945E-6 (mA2/s)饱和汽导热系数RAMDG= 47.69E-3 W/(m. C )饱和汽普朗特数PRNG1.2997饱和汽介电常数EPSG = 1.1200当给定波长为：0.2265卩m时，饱和汽

14、折射率 NG = 1.0057区域为：区间 4; 湿蒸汽或饱和线压力P= 4.10000000 MPa温度T= 251.83 C干度X= 不确定！饱和水比焓HL= 1094.58 kJ/kg饱和水比熵SL= 2.8101 kJ/(kg.C)饱和水比容VL= 0.0012560 mA3/kg饱和水定压比热 饱和水定容比热 饱和水内能 ELCPL = 4.8847 kJ/(kg. C )CVL = 3.1463 kJ/(kg. C) = 1089.43 kJ/kg饱和水音速 SSPL = 1140.76 m/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KSL = 252.702

15、5ETAL = 105.28E-6 kg/(m.s)UL = 0.1322E-6 (mA2/s)RAMDL= 618.9728E-3 W/(m. C )饱和水普朗特数饱和水介电常数PRNL = 0.8308EPSL = 26.7374当给定波长为：0.2265卩m时，饱和水折射率 NL = 1.3075饱和汽比焓 HG = 2800.39 kJ/kg饱和汽比熵SG = 6.0594 kJ/(kg. C )饱和汽比容VG = 0.0485259 mA3/kg饱和汽定压比热CPG= 4.0628 kJ/(kg. C )饱和汽定容比热CVG= 2.4813 kJ/(kg.C)饱和汽内能EG = 26

16、01.44 kJ/kg饱和汽音速SSPG = 501.34 m/s饱和汽定熵指数KSG= 1.2633饱和汽动力粘度ETAG =17.56E-6 kg/(m.s)饱和汽运动粘度UG= 0.8523E-6 (mA2/s)饱和汽导热系数RAMDG= 51.75E-3 W/(m. C )饱和汽普朗特数PRNG= 1.3787饱和汽介电常数EPSG =1.1574当给定波长为：0.2265卩m时,饱和汽折射率 NG = 1.0075区域为：区间4; 湿蒸汽或饱和线压力P= 6.10000000 MPa温度T= 276.67 C干度X= 不确定！饱和水比焓HL= 1219.32 kJ/kg饱和水比熵SL

17、= 3.0374 kJ/(kg.C)饱和水比容VL= 0.0013225 mA3/kg饱和水定压比热CPL = 5.2264 kJ/(kg.C)饱和水定容比热CVL = 3.0873 kJ/(kg. C )饱和水内能EL= 1211.25 kJ/kg饱和水音速SSPL =1029.64 m/s饱和水定熵指数KSL = 131.4129饱和水动力粘度ETAL = 94.82E-6 kg/(m.s)饱和水运动粘度UL=0.1254E-6 (mA2/s)饱和水导热系数RAMDL= 585.3508E-3 W/(m饱和水普朗特数PRNL = 0.8466饱和水介电常数EPSL = 23.2769当给定

18、波长为 :0.2265m 时，饱和水折射率NL= 1.2911饱和汽比焓HG =2783.46 kJ/kg饱和汽比熵SG =5.8822 kJ/(kg. c )饱和汽比容VG =0.0318703 mA3/kgc)饱和汽定压比热CPG4.9226 kJ/(kg. c )饱和汽定容比热CVG= 2.7130 kJ/(kg. c )饱和汽内能EG = 2589.05 kJ/kg饱和汽音速SSPG = 493.57 m/s饱和汽定熵指数KSG= 1.2531饱和汽动力粘度ETAG =18.56E-6 kg/(m.s)饱和汽运动粘度UG0.5914E-6 (mA2/s)饱和汽导热系数RAMDG= 59

19、.39E-3 W/(m. c )饱和汽普朗特数PRNG =1.5377饱和汽介电常数EPSG =1.2371当给定波长为 :0.2265 m时，饱和汽折射率NG1.0115压力P= 8.10000000 MPa温度T= 295.88 c干度X= 不确定！饱和水比焓HL= 1321.86 kJ/kg饱和水比熵SL= 3.2158 kJ/(kg. c )饱和水比容VL=0.0013880 mA3/kg饱和水定压比热CPL =5.6367 kJ/(kg. c )饱和水定容比热CVL= 3.0569 kJ/(kg. c)饱和水内能EL= 1310.62 kJ/kg饱和水音速SSPL = 932.07

20、m/s饱和水定熵指数KSL =77.2740饱和水动力粘度ETAL =87.44E-6 kg/(m.s)饱和水运动粘度UL =0.1214E-6 (mA2/s)饱和水导热系数RAMDL= 551.6082E-3 W/(m饱和水普朗特数PRNL =0.8935饱和水介电常数EPSL =20.6873当给定波长为 :0.2265 m时，饱和水折射率NL =1.2766饱和汽比焓HG= 2757.12 kJ/kg饱和汽比熵SG= 5.7381 kJ/(kg. c )饱和汽比容VG= 0.0231922 mA3/kg饱和汽定压比热CPG= 5.9393 kJ/(kg. c )饱和汽定容比热CVG= 2

21、.9228 kJ/(kg. c )饱和汽内能EG= 2569.26 kJ/kg饱和汽音速SSPG = 483.53 m/s饱和汽定熵指数KSG= 1.2446饱和汽动力粘度ETAG =19.44E-6 kg/(m.s)饱和汽运动粘度UG= 0.4509E-6 (mA2/s)饱和汽导热系数RAMDG= 67.49E-3 W/(m. c饱和汽普朗特数PRNG =1.7105饱和汽介电常数EPSG =1.3266当给定波长为 :0.2265 m时，饱和汽折射率NG= 1.0157c)区域为：区间 4; 湿蒸汽或饱和线压力P= 10.10000000 MPa温度T=311.73 C干度X= 不确定！饱

22、和水比焓HL= 1412.18 kJ/kg饱和水比熵SL=3.3674 kJ/(kg. C )饱和水比容VL=0.0014561 mA3/kg饱和水定压比热CPL= 6.1570 kJ/(kg.C)饱和水定容比热CVL= 3.0438 kJ/(kg.C)饱和水内能EL = 1397.47 kJ/kg饱和水音速SSPL = 843.51 m/s饱和水定熵指数KSL= 48.3784饱和水动力粘度ETAL =81.52E-6 kg/(m.s)饱和水运动粘度UL= 0.1187E-6 (mA2/s)饱和水导热系数RAMDL= 517.2036E-3 W/(m. C )饱和水普朗特数饱和水介电常数PR

23、NL = 0.9704EPSL = 18.5608当给定波长为：0.2265卩m时，饱和水折射率 NL = 1.2630饱和汽比焓HG= 2723.64 kJ/kg饱和汽比熵SG= 5.6097 kJ/(kg. C )饱和汽比容VG= 0.0178128 mA3/kg饱和汽定压比热CPG = 7.2193 kJ/(kg. C )饱和汽定容比热CVG= 3.1217 kJ/(kg. C )饱和汽内能EG= 2543.73 kJ/kg饱和汽音速SSPG = 471.82 m/s饱和汽定熵指数 KSG = 1.2374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PR

24、NL = 1.0861EPSL = 16.7079ETAG = 20.31E-6 kg/(m.s)UG = 0.3618E-6 (mA2/s)RAMDG= 77.06E-3 W/(m. C )PRNG = 1.9020EPSG = 1.4304当给定波长为：0.2265卩m时，饱和汽折射率 NG = 1.0205区域为：区间 4; 湿蒸汽或饱和线压力P= 12.10000000 MPa温度T= 325.31 C干度X= 不确定！饱和水比焓HL= 1495.37 kJ/kg饱和水比熵SL= 3.5030 kJ/(kg. C )饱和水比容VL= 0.0015302 mA3/kg饱和水定压比热CPL

25、= 6.8534 kJ/(kg.C)饱和水定容比热CVL= 3.0439 kJ/(kg.C)饱和水内能EL = 1476.86 kJ/kg饱和水音速SSPL = 761.55 m/s饱和水定熵指数KSL= 31.3222饱和水动力粘度ETAL =76.37E-6 kg/(m.s)饱和水运动粘度UL= 0.1169E-6 (mA2/s)饱和水导热系数RAMDL= 481.8994E-3 W/(m. C)饱和水普朗特数饱和水介电常数当给定波长为 ： 0.2265m 时，= 1.2496饱和水折射率NL饱和汽比焓HG=2683.40 kJ/kg饱和汽比熵SG=5.4881 kJ/(kg. C )饱和

26、汽比容VG=0.0141107 mA3/kg饱和汽定压比热CPG = 8.9183 kJ/(kg. C )饱和汽定容比热CVG = 3.3083 kJ/(kg. C )饱和汽内能EG=2512.66 kJ/kg饱和汽音速SSPG =458.78 m/s饱和汽定熵指数KSG = 1.2328饱和汽动力粘度ETAG = 21.23E-6 kg/(m.s)饱和汽运动粘度UG= 0.2996E-6 (mA2/s)饱和汽导热系数RAMDG= 89.25E-3 W/(m. C )饱和汽普朗特数PRNG = 2.1205饱和汽介电常数EPSG = 1.5548当给定波长为：0.2265卩m时，饱和汽折射率

27、NG = 1.0259区域为：区间 4; 湿蒸汽或饱和线压力P= 14.10000000 MPa温度T= 337.23 C干度X= 不确定！饱和水比焓HL= 1574.81 kJ/kg饱和水比熵SL= 3.6292 kJ/(kg. C )饱和水比容VL= 0.0016142 mA3/kg饱和水定压比热CPL = 7.8748 kJ/(kg.C)饱和水定容比热CVL = 3.0716 kJ/(kg.C)饱和水内能EL =1552.05 kJ/kg饱和水音速SSPL =678.56 m/s饱和水定熵指数KSL = 20.2297饱和水动力粘度ETAL = 71.60E-6 kg/(m.s)饱和水运

28、动粘度UL= 0.1156E-6 (mA2/s)饱和水导热系数RAMDL= 445.5503E-3 W/(m饱和水普朗特数PRNL = 1.2655饱和水介电常数EPSL = 15.0156当给定波长为 ：0.2265m 时，饱和水折射率NL= 1.2361饱和汽比焓HG =2635.49 kJ/kg饱和汽比熵SG =:5.3669 kJ/(kg. C )饱和汽比容VG =0.0113679 mA3/kgC)饱和汽定压比热CPG = 11.4134 kJ/(kg. C)饱和汽定容比热CVG = 3.4951 kJ/(kg. C )饱和汽内能 EG = 2475.20 kJ/kg饱和汽定熵指数饱

29、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音速 SSPG = 444.43 m/sKSG = 1.2323ETAG = 22.27E-6 kg/(m.s)UG= 0.2531E-6 (mA2/s)RAMDG= 105.76E-3 W/(m.PRNG = 2.4014EPSG = 1.7098当给定波长为：0.2265卩m时, 饱和汽折射率 NG = 1.0322区域为：区间 4; 湿蒸汽或饱和线压力P= 16.10000000 MPa温度T= 347.86 C干度X= 不确定！饱和水比焓HL= 1653.66 kJ/kg饱和水比熵SL= 3.7518 k

30、J/(kg. C )饱和水比容VL= 0.0017151 mA3/kg饱和水定压比热 饱和水定容比热 饱和水内能 ELCPL = 9.5841 kJ/(kg. C )CVL = 3.1363 kJ/(kg. C) = 1626.04 kJ/kg饱和水音速 SSPL = 593.64 m/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KSL = 12.7618ETAL = 66.90E-6 kg/(m.s)UL = 0.1147E-6 (mA2/s)RAMDL= 407.9181E-3 W/(m. C )饱和水普朗特数饱和水介电常数PRNL = 1.5719EPSL = 13.3912当给定波长为：0.2265卩m时, 饱和水折射率 NL = 1.2216饱和汽比焓HG= 2577.62 kJ/kg饱和汽比熵SG= 5.2397 kJ/(kg. C )饱和汽比容VG= 0.0092104 mA3/kg饱和汽定压比热CPG15.4633 kJ/(kgC)饱和汽定容比热CVG= 3.