Experimental Investigation of Hydrodynamic Characteristic of a New Rotating Stream Tray
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摘要
The hydrodynamic characteristic of a new rotating stream tray(NRST) was investigated. The tests were carried out using an air–water/oxygen experimental system in a column with a diameter of 500 mm. The hydrodynamic parameters studied were dry plate pressure drop, wet plate pressure drop, weeping, entrainment, and Murphree liquid efficiency. The results showed that the NRST has excellent performance in terms of high operational flexibility. The pressure drop, weeping rate, and entrainment rate remained low even under a high-capacity operation. Correlations of pressure drop, weeping, and entrainment for the NRST were obtained by regression analysis. The results can provide some important theoretical guidance for the development of this type of trays.
The hydrodynamic characteristic of a new rotating stream tray(NRST) was investigated. The tests were carried out using an air–water/oxygen experimental system in a column with a diameter of 500 mm. The hydrodynamic parameters studied were dry plate pressure drop, wet plate pressure drop, weeping, entrainment, and Murphree liquid efficiency. The results showed that the NRST has excellent performance in terms of high operational flexibility. The pressure drop, weeping rate, and entrainment rate remained low even under a high-capacity operation. Correlations of pressure drop, weeping, and entrainment for the NRST were obtained by regression analysis. The results can provide some important theoretical guidance for the development of this type of trays.
The hydrodynamic characteristic of a new rotating stream tray(NRST) was investigated. The tests were carried out using an air–water/oxygen experimental system in a column with a diameter of 500 mm. The hydrodynamic parameters studied were dry plate pressure drop, wet plate pressure drop, weeping, entrainment, and Murphree liquid efficiency. The results showed that the NRST has excellent performance in terms of high operational flexibility. The pressure drop, weeping rate, and entrainment rate remained low even under a high-capacity operation. Correlations of pressure drop, weeping, and entrainment for the NRST were obtained by regression analysis. The results can provide some important theoretical guidance for the development of this type of trays.
引文
1.Oluji??J?decke M,Shilkin A et al(2009)Equipment improvement trends in distillation.Chem Eng Process 48(6):1089-1104
2.Wang CR(2010)Study on classifi cation and application of the distillation.Min Metall 19(2):55-56,62(in Chinese)
3.Fair JR,Trutna WR,Seibert AF(1999)A new,ultracapacity tray for distillation columns.Chem Eng Res Des 77(7):619-626
4.Vennavelli AN,Whiteley JR,Resetarits MR(2012)New fraction jetting model for distillation sieve tray efficiency prediction.Ind Eng Chem Res 51(35):11458-11462
5.Zhang L,Liu X,Li H et al(2012)Hydrodynamic and mass transfer performances of a new SiC foam column tray.Chem Eng Technol 35(12):2075-2083
6.Brahem R,Royon-Lebeaud A,Legendre D et al(2013)Experimental hydrodynamic study of valve trays.Chem Eng Sci100:23-32
7.Jiang B,Liu PF,Zhang LH et al(2013)Hydrodynamics and masstransfer analysis of a distillation ripple tray by computational fluid dynamics simulation.Ind Eng Chem Res 52(49):17618-17626
8.Vanaki SM,Ganesan P,Mohammed HA(2016)Numerical study of convective heat transfer of nanofluids:a review.Renew Sustain Energy Rev 54:1212-1239
9.Zhang LH,Li ZJ,Yang N et al(2016)Hydrodynamics and mass transfer performance of vapor-liquid flow of orthogonal wave tray column.J Taiwan Inst Chem Eng 63:6-16
10.Tan TE,Wang DH(1985)The rotating stream tray.Bull Sci Technol 1:43-44(in Chinese)
11.Chen JM,Tan T(1998)Experimental and theoretical investigation of gas flow fi eld on a rotating stream tray.Chem Eng Commun168(1):243-257
12.Shao XF,Wu ZB(2004)Simulation and analysis on the two-phase flow fi elds in a rotating-stream-tray absorber by using computational fluid dynamics.Chin J Chem Eng 12(2):169-173
13.Chen JM,Tan T(1996)Experimental studies of flow fi elds on rotating stream tray with laser Droppler anemometer.Chin J Chem Eng 24:59-64(in Chinese)
14.Sun WS,Wu ZB,Li Y et al(2002)Sodium-enhanced limestone wet FGD in rotating-stream tray scrubber.Chin J Environ Sci23(5):105-108
15.Chen JM,Tan TE,Shi XN(1993)Gas flow fi eld above rotating stream tray.J Chem Eng Chin Univ 3:235-241
16.He SC,Yuan HX,Fu SC et al(2011)Numerical simulation of velocity and pressure in gas phase in rotating stream tray column.Chem Ind Eng Prog 11:2399-2403
17.Sun YQ,Chen JM,Song S(2007)Industrial treatment of nitrogen oxide waste gas with rotating-stream-tray scrubber.Bull Sci Technol 23(5):751-754(in Chinese)
18.Shao XF,Wu ZB(2004)Simulation and analysis on the two-phase flow fi elds in a rotating-stream-tray absorber by using computational fluid dynamics.Chin J Chem Eng 12(2):169-173
19.Li GW,Shi JF(1996)Hydromechanics of rotative-stream tray.Environ Eng 14:28-34(in Chinese)
20.Yu R,Zhu HM(2018)Impact of length of Baffle in structured packing on pressure drop and mass transfer.Chem Ind Eng35(4):58-65
21.Wu JN,Wang Y,Xu EL et al(2018)Design and performance tests of motor-driven rotary energy recovery device.Chem Ind Eng35(5):42-48
22.Bennett DL,Agrawal R,Cook PJ(1983)New pressure drop correlation for sieve tray distillation columns.AIChE J 29(3):434-442
23.Zarei T,Rahimi R,Zarei A et al(2013)Hydrodynamic characteristic of conical cap tray:experimental studies on dry and total pressure drop,weeping and entrainment.Chem Eng Process64:17-23
24.Vitankar VS,Dhotre MT,Joshi JB(2002)A low Reynolds number k-εmodel for the prediction of flow pattern and pressure drop in bubble column reactors.Chem Eng Sci 57(16):3235-3250
25.Wijn EF(1998)On the lower operating range of sieve and valve trays.Chem Eng J 70(2):143-155
26.Ja?imovi?BM(2000)Entrainment effect on tray efficiency.Chem Eng Sci 55(18):3941-3949
27.Thomas WJ,Ogboja O(1978)Hydraulic studies in sieve tray columns.Ind Eng Chem Proc Des Dev 17(4):429-443
28.Kister HZ,Haas JR(1988)Entrainment from sieve trays in the froth regime.Ind Eng Chem Res 27(12):2331-2341
29.Ja?imovi?BM,Geni?SB(2011)Tray efficiency versus stripping factor.Ind Eng Chem Res 50(12):7445-7451
30.Luo N,Qian F,Ye ZC et al(2012)Estimation of mass-transfer efficiency for industrial distillation columns.Ind Eng Chem Res51(7):3023-3031
31.Wang HH,Niu XW,Li CL et al(2017)Combined trapezoid spray tray(CTST):a novel tray with high separation efficiency and operation flexibility.Chem Eng Process 112:38-46
32.Li QS,Zhang MX,Tang XF et al(2013)Flow-guided sieve-valve tray(FGS-VT):a novel tray with improved efficiency and hydrodynamics.Chem Eng Res Des 91(6):970-976
2.Wang CR(2010)Study on classifi cation and application of the distillation.Min Metall 19(2):55-56,62(in Chinese)
3.Fair JR,Trutna WR,Seibert AF(1999)A new,ultracapacity tray for distillation columns.Chem Eng Res Des 77(7):619-626
4.Vennavelli AN,Whiteley JR,Resetarits MR(2012)New fraction jetting model for distillation sieve tray efficiency prediction.Ind Eng Chem Res 51(35):11458-11462
5.Zhang L,Liu X,Li H et al(2012)Hydrodynamic and mass transfer performances of a new SiC foam column tray.Chem Eng Technol 35(12):2075-2083
6.Brahem R,Royon-Lebeaud A,Legendre D et al(2013)Experimental hydrodynamic study of valve trays.Chem Eng Sci100:23-32
7.Jiang B,Liu PF,Zhang LH et al(2013)Hydrodynamics and masstransfer analysis of a distillation ripple tray by computational fluid dynamics simulation.Ind Eng Chem Res 52(49):17618-17626
8.Vanaki SM,Ganesan P,Mohammed HA(2016)Numerical study of convective heat transfer of nanofluids:a review.Renew Sustain Energy Rev 54:1212-1239
9.Zhang LH,Li ZJ,Yang N et al(2016)Hydrodynamics and mass transfer performance of vapor-liquid flow of orthogonal wave tray column.J Taiwan Inst Chem Eng 63:6-16
10.Tan TE,Wang DH(1985)The rotating stream tray.Bull Sci Technol 1:43-44(in Chinese)
11.Chen JM,Tan T(1998)Experimental and theoretical investigation of gas flow fi eld on a rotating stream tray.Chem Eng Commun168(1):243-257
12.Shao XF,Wu ZB(2004)Simulation and analysis on the two-phase flow fi elds in a rotating-stream-tray absorber by using computational fluid dynamics.Chin J Chem Eng 12(2):169-173
13.Chen JM,Tan T(1996)Experimental studies of flow fi elds on rotating stream tray with laser Droppler anemometer.Chin J Chem Eng 24:59-64(in Chinese)
14.Sun WS,Wu ZB,Li Y et al(2002)Sodium-enhanced limestone wet FGD in rotating-stream tray scrubber.Chin J Environ Sci23(5):105-108
15.Chen JM,Tan TE,Shi XN(1993)Gas flow fi eld above rotating stream tray.J Chem Eng Chin Univ 3:235-241
16.He SC,Yuan HX,Fu SC et al(2011)Numerical simulation of velocity and pressure in gas phase in rotating stream tray column.Chem Ind Eng Prog 11:2399-2403
17.Sun YQ,Chen JM,Song S(2007)Industrial treatment of nitrogen oxide waste gas with rotating-stream-tray scrubber.Bull Sci Technol 23(5):751-754(in Chinese)
18.Shao XF,Wu ZB(2004)Simulation and analysis on the two-phase flow fi elds in a rotating-stream-tray absorber by using computational fluid dynamics.Chin J Chem Eng 12(2):169-173
19.Li GW,Shi JF(1996)Hydromechanics of rotative-stream tray.Environ Eng 14:28-34(in Chinese)
20.Yu R,Zhu HM(2018)Impact of length of Baffle in structured packing on pressure drop and mass transfer.Chem Ind Eng35(4):58-65
21.Wu JN,Wang Y,Xu EL et al(2018)Design and performance tests of motor-driven rotary energy recovery device.Chem Ind Eng35(5):42-48
22.Bennett DL,Agrawal R,Cook PJ(1983)New pressure drop correlation for sieve tray distillation columns.AIChE J 29(3):434-442
23.Zarei T,Rahimi R,Zarei A et al(2013)Hydrodynamic characteristic of conical cap tray:experimental studies on dry and total pressure drop,weeping and entrainment.Chem Eng Process64:17-23
24.Vitankar VS,Dhotre MT,Joshi JB(2002)A low Reynolds number k-εmodel for the prediction of flow pattern and pressure drop in bubble column reactors.Chem Eng Sci 57(16):3235-3250
25.Wijn EF(1998)On the lower operating range of sieve and valve trays.Chem Eng J 70(2):143-155
26.Ja?imovi?BM(2000)Entrainment effect on tray efficiency.Chem Eng Sci 55(18):3941-3949
27.Thomas WJ,Ogboja O(1978)Hydraulic studies in sieve tray columns.Ind Eng Chem Proc Des Dev 17(4):429-443
28.Kister HZ,Haas JR(1988)Entrainment from sieve trays in the froth regime.Ind Eng Chem Res 27(12):2331-2341
29.Ja?imovi?BM,Geni?SB(2011)Tray efficiency versus stripping factor.Ind Eng Chem Res 50(12):7445-7451
30.Luo N,Qian F,Ye ZC et al(2012)Estimation of mass-transfer efficiency for industrial distillation columns.Ind Eng Chem Res51(7):3023-3031
31.Wang HH,Niu XW,Li CL et al(2017)Combined trapezoid spray tray(CTST):a novel tray with high separation efficiency and operation flexibility.Chem Eng Process 112:38-46
32.Li QS,Zhang MX,Tang XF et al(2013)Flow-guided sieve-valve tray(FGS-VT):a novel tray with improved efficiency and hydrodynamics.Chem Eng Res Des 91(6):970-976