四通换向阀内制冷剂流动的数值模拟
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摘要
结合热泵系统冷热工况的差异对四通换向阀进行设计计算,对不同设计工况下的四通换向阀内制冷剂流动进行了数值模拟,分析了制冷制热模式下的传热损失,并通过观察云图分析传热损失的原因。通过对比分析发现,四通换向阀的设计工况取制冷工况时传热损失较小。
According to the difference between the hot and cold working conditions of the heat pump system,the design and calculation of the four-way reversing valve were carried out,and the refrigerant flow in the four-way reversing valve was simulated. The heat transfer losses under the cooling mode and heating mode were evaluated. The factors of the heat transfer losses were analyzed by observing cloud images. The results show that the four-way reversing valve has less heat transfer loss when it is designed according to the cooling condition.
According to the difference between the hot and cold working conditions of the heat pump system,the design and calculation of the four-way reversing valve were carried out,and the refrigerant flow in the four-way reversing valve was simulated. The heat transfer losses under the cooling mode and heating mode were evaluated. The factors of the heat transfer losses were analyzed by observing cloud images. The results show that the four-way reversing valve has less heat transfer loss when it is designed according to the cooling condition.
引文
[1]赵爱国,贺宇辰,王顶东,等.四通换向阀容量测算方法研究[J].制冷技术,2015,35(6):63-66.
[2]薛振明,丁国良,陈芝久.热泵型空调器四通换向阀容量的测定及换算[J].上海交通大学学报,2000,34(9):1179-1181.
[3]方祥建,陈焕新,邓智等.预防四通阀液击损坏的控制模式研究[J].制冷与空调,2015,15(9):16-20.
[4] MURPHY W W. Analysis of the performance improvements of central air conditioners for residences[D]. Purdue:Purdue University,1978.
[5] KRISHNAN R R. Evaluating reversing valve performance in heat pump systems[J]. ASHRAE Transaction,1986,92(2B):71-80.
[6]DAMASCENO G D S,LEE W N T,ROOKE S P. Performanceof heat pump reversing valves and comparisonthrough characterizing parameters[J]. ASHRAE Transaction,1988,94(1):304-317.
[7]宋徐辉,葛宏明,陈芝,等.四通换向阀对家用热泵空调系统性能的影响[J].上海交通大学学报,1998,32(4):14-17.
[8]董建锴,姜益强,姚杨,等.四通换向阀泄漏对热泵性能影响实验[J].哈尔滨工业大学学报,2011,43(2):80-83.
[9]葛宏明,宋徐辉,于兵,等.热泵系统四通换向阀特性研究(三)四通换向阀传热、压降及制冷剂泄漏损失对家用热泵性能的影响[J].流体机械,1998,26(3):48-51+13.
[10]葛宏明.热泵系统四通换向阀特性研究[D].上海:上海交通大学,1998.
[11]LI H,BRAUN J E. Decoupling features for diagnosis of reversing and check valve faults in heatpumps[J]. International Journal of Refrigeration,2009,32(2):316-326.
[12]柴婷,胡海涛,丁国良.基于传热损失分析的四通换向阀优化设计[C].上海:上海市制冷学会代表大会暨学术年会. 2011.
[13]柴婷,胡海涛,丁国良.四通换向阀中采用新型材料的节能效果[J].制冷学报,2012,33(3):49-53.
[14]张振迎,房朝龙,王洪利,等.双工况压缩-引射热泵空调系统:CN205641669U[P]. 2016-10-12.
[15]柴婷.基于传热与压降损失分析的四通换向阀优化研究[D].上海:上海交通大学,2012.
[2]薛振明,丁国良,陈芝久.热泵型空调器四通换向阀容量的测定及换算[J].上海交通大学学报,2000,34(9):1179-1181.
[3]方祥建,陈焕新,邓智等.预防四通阀液击损坏的控制模式研究[J].制冷与空调,2015,15(9):16-20.
[4] MURPHY W W. Analysis of the performance improvements of central air conditioners for residences[D]. Purdue:Purdue University,1978.
[5] KRISHNAN R R. Evaluating reversing valve performance in heat pump systems[J]. ASHRAE Transaction,1986,92(2B):71-80.
[6]DAMASCENO G D S,LEE W N T,ROOKE S P. Performanceof heat pump reversing valves and comparisonthrough characterizing parameters[J]. ASHRAE Transaction,1988,94(1):304-317.
[7]宋徐辉,葛宏明,陈芝,等.四通换向阀对家用热泵空调系统性能的影响[J].上海交通大学学报,1998,32(4):14-17.
[8]董建锴,姜益强,姚杨,等.四通换向阀泄漏对热泵性能影响实验[J].哈尔滨工业大学学报,2011,43(2):80-83.
[9]葛宏明,宋徐辉,于兵,等.热泵系统四通换向阀特性研究(三)四通换向阀传热、压降及制冷剂泄漏损失对家用热泵性能的影响[J].流体机械,1998,26(3):48-51+13.
[10]葛宏明.热泵系统四通换向阀特性研究[D].上海:上海交通大学,1998.
[11]LI H,BRAUN J E. Decoupling features for diagnosis of reversing and check valve faults in heatpumps[J]. International Journal of Refrigeration,2009,32(2):316-326.
[12]柴婷,胡海涛,丁国良.基于传热损失分析的四通换向阀优化设计[C].上海:上海市制冷学会代表大会暨学术年会. 2011.
[13]柴婷,胡海涛,丁国良.四通换向阀中采用新型材料的节能效果[J].制冷学报,2012,33(3):49-53.
[14]张振迎,房朝龙,王洪利,等.双工况压缩-引射热泵空调系统:CN205641669U[P]. 2016-10-12.
[15]柴婷.基于传热与压降损失分析的四通换向阀优化研究[D].上海:上海交通大学,2012.