不同压强下氡气运移实验研究
|
摘要
氡气在空气中的运移研究是氡气测量和防护的基础理论问题。论文以实验为基础,采用活性炭累积测氡法,对氡气在不同气体压强下的运移规律进行研究。得出:氡气在空气中运移速度与空气压强有关,空气压强越大,运移速度越快,在低压状态下向下运移更加明显;对比氡气在竖直方向和水平方向上测量结果,不管压强高低,氡气运移在竖直方向上的运移能力远远超过水平方向;在不同压强情况下氡气平均速度估算,常压下向上运移平均速度为1.02×10-6m/s、向下运移平均速度为2.08×10-6m/s,低压下(相对真空度为-0.06 MPa)氡气的向上运移平均速度为0.91×10-6 m/s、向下运移平均速度为2.77×10-6m/s,与实际测量结果符合性良好。
The migration study of Radon in the air is the foundation theory problems of radon measurement and protection.Basing on experiment,the paper uses the method of active carbon accumulated measuring radon to study the migration regularity of radon gas in different gas pressure.Through series experiments,following conclusions can be obtained: the migration velocity of radon in the air is related with the air pressure,with greater air pressure,the conveyance speed is faster.Especially at low-pressure state the downward migration is more apparent.Through the comparison of measurement results of radon in vertical direction and a horizontal direction,the migration ability of radon in the vertical height is far larger than that in the horizontal direction whatever the pressure is.The average speed of radon in different pressures cases are estimated as follows: the upward migration average speed under atmospheric environment is 1.02 10-6m/s,the downward migration average speed is 2.08 10-6m/s;The upward migration average speed under-0.06 MPa vacuum environment is 0.91×10-6m/s,the downward migration average speed is 2.77×10-6m/s.As is consistent with the practical measurement result.
The migration study of Radon in the air is the foundation theory problems of radon measurement and protection.Basing on experiment,the paper uses the method of active carbon accumulated measuring radon to study the migration regularity of radon gas in different gas pressure.Through series experiments,following conclusions can be obtained: the migration velocity of radon in the air is related with the air pressure,with greater air pressure,the conveyance speed is faster.Especially at low-pressure state the downward migration is more apparent.Through the comparison of measurement results of radon in vertical direction and a horizontal direction,the migration ability of radon in the vertical height is far larger than that in the horizontal direction whatever the pressure is.The average speed of radon in different pressures cases are estimated as follows: the upward migration average speed under atmospheric environment is 1.02 10-6m/s,the downward migration average speed is 2.08 10-6m/s;The upward migration average speed under-0.06 MPa vacuum environment is 0.91×10-6m/s,the downward migration average speed is 2.77×10-6m/s.As is consistent with the practical measurement result.
引文
[1]侯新生,马英杰,周蓉生.地面γ能谱和α杯测量在寻找铀(金、铜)矿产中的应用[J].成都理工学院学报,1998,25(1):8-12.
[2]杨凤根,童纯菡.地气测量在宣汉气田上的应用[J].矿物岩石,1998,18(3):99-105.
[3]刘华军,李天斌,沈军辉,等.氡(RaA)测试技术在某岩质边坡卸荷深裂缝带研究中的应用[J].中国地质灾害与防治学报,2004,15(1):107-111.
[4]尹兵祥,王南萍,刘洪涛.氡测量在油气勘探中的应用[J].石油大学学报:自然科学版,2002,26(2):23-25.
[5]石玉春,闫明,马宏伟.多种放射性方法在LZ油田上圈定油气藏的效果及其评价[J].石油物探,1994,33(4):85-92.
[6]杨凤根,童纯菡.宣汉气田的地气测量及其机理研究[J].地球科学:中国地质大学学报,2000,25(1):103-106.
[7]葛良全,沈松平.隐伏断裂上方地气异常特征及其机理研究[J].成都理工学院学报,1997,24(3):29-35.
[8]Choubey V M,Sharma K K,Ramola R C.Geology ofradon occurrence around Jari in Parvati Valley,Him-achal Pradesh,India[J].Journal of EnvironmentalRadioactivity,1997,34(2):139-147.
[9]童运福,邱元德.活性炭测氡法的特点[J].核技术,1996,19(9):554-558.
[10]Choi E,Komori M,Takahisa K,et al.Highly sensi-tive radon monitor and radon emanation rates for de-tector components[J].Nuclear Instruments and Meth-ods in Physics Research Section A,2001,459(1–2):177-181.
[11]刘鸿福,贾文懿,王广忠,等.氡及其子体运移规律的实验研究[J].太原理工大学学报,1998,29(2):109-113.
[12]吴慧山,白云生,林玉飞,等.氡迁移的接力传递作用[J].地球物理学报,1997,40(1):136-142.
[13]曹玲玲,王宗礼,刘耀炜.氡迁移机理研究进展概述[J].地震研究,2005,28(3):302-306.
[14]乐仁昌,贾文懿,吴允平.理想条件下氡及其子体运移新理论及其运移方程[J].物理学报,2003,52(10):2457-2461.
[15]乐仁昌,林刚勇.理想条件下氦氡团簇离子垂直移动速度的理论计算[J].物理学报,2005,54(9):4113-4116.
[16]乐仁昌.氡及其子体的释放和运移规律及机理研究[D].成都:成都理工大学,2001.
[2]杨凤根,童纯菡.地气测量在宣汉气田上的应用[J].矿物岩石,1998,18(3):99-105.
[3]刘华军,李天斌,沈军辉,等.氡(RaA)测试技术在某岩质边坡卸荷深裂缝带研究中的应用[J].中国地质灾害与防治学报,2004,15(1):107-111.
[4]尹兵祥,王南萍,刘洪涛.氡测量在油气勘探中的应用[J].石油大学学报:自然科学版,2002,26(2):23-25.
[5]石玉春,闫明,马宏伟.多种放射性方法在LZ油田上圈定油气藏的效果及其评价[J].石油物探,1994,33(4):85-92.
[6]杨凤根,童纯菡.宣汉气田的地气测量及其机理研究[J].地球科学:中国地质大学学报,2000,25(1):103-106.
[7]葛良全,沈松平.隐伏断裂上方地气异常特征及其机理研究[J].成都理工学院学报,1997,24(3):29-35.
[8]Choubey V M,Sharma K K,Ramola R C.Geology ofradon occurrence around Jari in Parvati Valley,Him-achal Pradesh,India[J].Journal of EnvironmentalRadioactivity,1997,34(2):139-147.
[9]童运福,邱元德.活性炭测氡法的特点[J].核技术,1996,19(9):554-558.
[10]Choi E,Komori M,Takahisa K,et al.Highly sensi-tive radon monitor and radon emanation rates for de-tector components[J].Nuclear Instruments and Meth-ods in Physics Research Section A,2001,459(1–2):177-181.
[11]刘鸿福,贾文懿,王广忠,等.氡及其子体运移规律的实验研究[J].太原理工大学学报,1998,29(2):109-113.
[12]吴慧山,白云生,林玉飞,等.氡迁移的接力传递作用[J].地球物理学报,1997,40(1):136-142.
[13]曹玲玲,王宗礼,刘耀炜.氡迁移机理研究进展概述[J].地震研究,2005,28(3):302-306.
[14]乐仁昌,贾文懿,吴允平.理想条件下氡及其子体运移新理论及其运移方程[J].物理学报,2003,52(10):2457-2461.
[15]乐仁昌,林刚勇.理想条件下氦氡团簇离子垂直移动速度的理论计算[J].物理学报,2005,54(9):4113-4116.
[16]乐仁昌.氡及其子体的释放和运移规律及机理研究[D].成都:成都理工大学,2001.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心