送风温度波动对恒温波荡器隧道温控精度的影响
摘要：在波荡器隧道中由于科学装置的特殊性，对隧道内空气温度稳定性的要求非常高。以某恒温波荡器隧道为研究对象，应用PHOENICS软件建立了物理模型，采用数值模拟方法研究了送风温度波动对隧道恒温区域温度稳定性的影响，以确定温度波动的临界值。结果表明：当送风温度发生波动时，越靠近隧道两端区域，空气温度波动幅度越小；当送风温度波动值为±0.200℃时，在30 min内，隧道内恒温区域轴向的温度波动值在-0.013～0.180℃之间，径向的温度波动值在-0.029～0.187℃之间。因此，为了满足波荡器隧道恒温区域的温控精度(±0.200℃)要求，送风温度波动不得超过0.200℃。
关键词：波荡器深埋特长隧道送风温度波动温控精度恒温区域温度稳定性临界值高精度恒温空调
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参考文献[1] 赵振堂，王东，殷立新，等.X射线自由电子激光试验装置[J].光学学报，2021,41(1):266- 277.
[2] 寿炜炜，张伟程，滕汜颖，等.上海光源工程储存环隧道恒温空调设计[J].暖通空调，2007,47(7):86- 92.
[3] 白建波，张小松，刘庆君.模糊自适应PI控制在空调系统中的研究[J].化工学报，2010,61(增刊2):99- 106.
[4] 郦峻.高精度恒温空调设计体会[J].发电与空调，2014,35(3):49- 53.
[5] 傅允准，张旭.高精度恒温空调系统的扰量特性[J].沈阳建筑大学学报(自然科学版),2007,23(2):298- 302.
[6] 傅允准，张旭.某高精度恒温室合理气流组织的模拟研究[J].建筑科学，2006,22(6):34- 37.
[7] 傅允准.基于DMC-PID串级控制的大温差送风高精度恒温空调系统研究[D].上海：同济大学，2007:31- 43.
[8] 霍镜涛，张旭，吴超.某地下隧道高精度空调单元段模型可行性研究[J].建筑热能通风空调，2019,38(12):81- 84.
[9] 罗文林.基于微纳磨床实验室高精度恒温空调环境设计研究[D].上海：东华大学，2015:71- 75.
[10] 金涟漪.机械工业厂房恒温室设计要点[J].暖通空调，2020,50(7):115- 117.
[11] 俞丽华，汪洪军.恒温恒湿科学实验室的空调系统设计[J].制冷与空调(四川),2018,32(5):511- 514,527.
[12] LAUNDER B E,SPALDINGD B.Lectures in mathematical model of turbulence[M].Pittsburgh:Academic Press,1972:56- 60.
[13] DENG Q,LIU H C,HE Y C,et al.Uniformity and energy evaluation of equal cross-section ventilation system(ECVS) for long tunnel in underground buildings[J].Energy and built environment,2022,3(1):86- 94.
[14] 任锐，谢永利.海底沉管隧道射流风机通风效果影响因素的研究[J].流体机械，2016,44(2):43- 47.
[15] SHAO S,YANG X G,ZHOU J W.Numerical analysis of different ventilation schemes during the construction process of inclined tunnel groups at the Changheba Hydropower Station,China[J].Tunnelling and underground space technology incorporating trenchless technology research,2016,59:157- 169.
[16] 王爽.长距离电缆隧道通风系统模拟研究及优化[D].西安：西安建筑科技大学，2020:48- 49.
[17] MI H F,LIU Y L,JIAO Z R,et al.A numerical study on the optimization of ventilation mode during emergency of cable fire in utility tunnel[J].Tunnelling and underground space technology incorporating trenchless technology research,2020,100:103403.
[18] GUO X X,PAN X H,ZHANG L J,et al.Comparative study on ventilation and smoke extraction systems of different super-long river-crossing subway tunnels under fire scenarios[J].Tunnelling and underground space technology,2021,113:103849.
[19] 章长松.上海地区土壤源热泵空调地质环境问题及对策[J].制冷空调与电力机械，2010,31(1):74- 77.
[20] 薛国典，单寄平.室外气温波动经由地下传热对20 ℃±0.01 ℃高精度恒温光栅刻线室影响的研究[J].制冷学报，1987(1):8- 13.
[21] KURNIA J C,SASMITO A P,MUJUMDARA S.CFD simulation of methane dispersion and innovative methane management in underground mining faces[J].Applied mathematical modelling,2014,38(14):3467- 3484.
[22] 王孟武，张知宇，刘凯迪，等.半地下结构工业厂房内通风换热数值模拟研究[J].流体机械，2018,46(8):77- 82,65.
[2] 寿炜炜，张伟程，滕汜颖，等.上海光源工程储存环隧道恒温空调设计[J].暖通空调，2007,47(7):86- 92.
[3] 白建波，张小松，刘庆君.模糊自适应PI控制在空调系统中的研究[J].化工学报，2010,61(增刊2):99- 106.
[4] 郦峻.高精度恒温空调设计体会[J].发电与空调，2014,35(3):49- 53.
[5] 傅允准，张旭.高精度恒温空调系统的扰量特性[J].沈阳建筑大学学报(自然科学版),2007,23(2):298- 302.
[6] 傅允准，张旭.某高精度恒温室合理气流组织的模拟研究[J].建筑科学，2006,22(6):34- 37.
[7] 傅允准.基于DMC-PID串级控制的大温差送风高精度恒温空调系统研究[D].上海：同济大学，2007:31- 43.
[8] 霍镜涛，张旭，吴超.某地下隧道高精度空调单元段模型可行性研究[J].建筑热能通风空调，2019,38(12):81- 84.
[9] 罗文林.基于微纳磨床实验室高精度恒温空调环境设计研究[D].上海：东华大学，2015:71- 75.
[10] 金涟漪.机械工业厂房恒温室设计要点[J].暖通空调，2020,50(7):115- 117.
[11] 俞丽华，汪洪军.恒温恒湿科学实验室的空调系统设计[J].制冷与空调(四川),2018,32(5):511- 514,527.
[12] LAUNDER B E,SPALDINGD B.Lectures in mathematical model of turbulence[M].Pittsburgh:Academic Press,1972:56- 60.
[13] DENG Q,LIU H C,HE Y C,et al.Uniformity and energy evaluation of equal cross-section ventilation system(ECVS) for long tunnel in underground buildings[J].Energy and built environment,2022,3(1):86- 94.
[14] 任锐，谢永利.海底沉管隧道射流风机通风效果影响因素的研究[J].流体机械，2016,44(2):43- 47.
[15] SHAO S,YANG X G,ZHOU J W.Numerical analysis of different ventilation schemes during the construction process of inclined tunnel groups at the Changheba Hydropower Station,China[J].Tunnelling and underground space technology incorporating trenchless technology research,2016,59:157- 169.
[16] 王爽.长距离电缆隧道通风系统模拟研究及优化[D].西安：西安建筑科技大学，2020:48- 49.
[17] MI H F,LIU Y L,JIAO Z R,et al.A numerical study on the optimization of ventilation mode during emergency of cable fire in utility tunnel[J].Tunnelling and underground space technology incorporating trenchless technology research,2020,100:103403.
[18] GUO X X,PAN X H,ZHANG L J,et al.Comparative study on ventilation and smoke extraction systems of different super-long river-crossing subway tunnels under fire scenarios[J].Tunnelling and underground space technology,2021,113:103849.
[19] 章长松.上海地区土壤源热泵空调地质环境问题及对策[J].制冷空调与电力机械，2010,31(1):74- 77.
[20] 薛国典，单寄平.室外气温波动经由地下传热对20 ℃±0.01 ℃高精度恒温光栅刻线室影响的研究[J].制冷学报，1987(1):8- 13.
[21] KURNIA J C,SASMITO A P,MUJUMDARA S.CFD simulation of methane dispersion and innovative methane management in underground mining faces[J].Applied mathematical modelling,2014,38(14):3467- 3484.
[22] 王孟武，张知宇，刘凯迪，等.半地下结构工业厂房内通风换热数值模拟研究[J].流体机械，2018,46(8):77- 82,65.
Influence of supply air temperature fluctuation on temperature control accuracy of constant-temperature undulator tunnels
Abstract: Due to the particularity of scientific devices in the undulator tunnel, very strict requirements are put forward on the stability of the air temperature in the tunnel. Taking a constant-temperature undulator tunnel as the research object, a physical model is established using PHOENICS software, and the influence of the supply air temperature fluctuation on the temperature stability of the constant temperature area in the tunnel is studied by the numerical simulation method, in order to determine the critical value of temperature fluctuation. The results show that when the supply air temperature fluctuates, the closer the air is to the two ends of the tunnel, the smaller the temperature fluctuation. When the supply air temperature fluctuation value is ±0.200 ℃, the temperature fluctuation value is between-0.013 ℃ and 0.180 ℃ in the axial direction of the constant temperature area in the tunnel, and between-0.029 ℃ and 0.187 ℃ in the radial direction within 30 minutes. Therefore, in order to meet the requirement of temperature control accuracy(±0.200 ℃) in the constant temperature area of the undulator tunnel, the fluctuation of supply air temperature should not exceed 0.200 ℃.
Keywords: undulator; deeply buried super-long tunnel; supply air temperature fluctuation; temperature control accuracy; constant temperature area; temperature stability; critical value; high precision and constant temperature air conditioning;
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