CIESC Journal ›› 2021, Vol. 72 ›› Issue (8): 4239-4254.DOI: 10.11949/0438-1157.20210407
• Surface and interface engineering • Previous Articles Next Articles
Peng JIANG(),Jinbo JIANG(),Xudong PENG,Xiangkai MENG,Yi MA
Received:
2021-03-22
Revised:
2021-04-22
Online:
2021-08-05
Published:
2021-08-05
Contact:
Jinbo JIANG
通讯作者:
江锦波
作者简介:
江鹏(1997—),男,硕士研究生,基金资助:
CLC Number:
Peng JIANG, Jinbo JIANG, Xudong PENG, Xiangkai MENG, Yi MA. Influence of heat transfer model on temperature and pressure distribution and steady state performance of CO2 dry gas seal under near critical condition[J]. CIESC Journal, 2021, 72(8): 4239-4254.
江鹏, 江锦波, 彭旭东, 孟祥铠, 马艺. 传热模型对近临界工况CO2干气密封温压分布和稳态性能影响[J]. 化工学报, 2021, 72(8): 4239-4254.
工况及参数 | 数值 |
---|---|
槽根半径rg/mm | 69 |
槽数 | 12 |
槽深hg/μm | 5 |
螺旋角β/(°) | 15 |
周向槽宽比α | 0.5 |
进口压力pin/MPa | 8 |
进口温度T/K | 360 |
动环转速n/(kr/min) | 10 |
膜厚h0/μm | 6 |
Table 1 Dry gas seal operating conditions and structural parameters of type groove
工况及参数 | 数值 |
---|---|
槽根半径rg/mm | 69 |
槽数 | 12 |
槽深hg/μm | 5 |
螺旋角β/(°) | 15 |
周向槽宽比α | 0.5 |
进口压力pin/MPa | 8 |
进口温度T/K | 360 |
动环转速n/(kr/min) | 10 |
膜厚h0/μm | 6 |
参数 | 数值 |
---|---|
外径ro/mm | 77.78 |
内径ri/mm | 58.42 |
静环外周与密封腔内壁间隙δs/mm | 20 |
动环外周与密封腔内壁间隙δr/mm | 20 |
热导率k/(W/(m·K)) | 57 |
密度ρ/(kg/m3) | 3150 |
比定压热容cp/ (J/(kg·K)) | 710 |
Table2 Dry gas seal ring structure and material parameters
参数 | 数值 |
---|---|
外径ro/mm | 77.78 |
内径ri/mm | 58.42 |
静环外周与密封腔内壁间隙δs/mm | 20 |
动环外周与密封腔内壁间隙δr/mm | 20 |
热导率k/(W/(m·K)) | 57 |
密度ρ/(kg/m3) | 3150 |
比定压热容cp/ (J/(kg·K)) | 710 |
转速n/ (r/min) | 对流传热系数/(W/(m2·K)) | |||
---|---|---|---|---|
动环 | 静环 | |||
空气 | CO2 | 空气 | CO2 | |
2000 | — | 3683 | — | 2876 |
6000 | — | 6014 | — | 2876 |
10000 | 5078 | 8188 | 1556 | 2876 |
Table 3 The heat transfer coefficient of the circumferential face of the rotor and stator ring at different rotational speeds
转速n/ (r/min) | 对流传热系数/(W/(m2·K)) | |||
---|---|---|---|---|
动环 | 静环 | |||
空气 | CO2 | 空气 | CO2 | |
2000 | — | 3683 | — | 2876 |
6000 | — | 6014 | — | 2876 |
10000 | 5078 | 8188 | 1556 | 2876 |
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