加湿量对低温冷库冷风机融霜的影响

doi:10.3969/j.issn.0438-1157.2014.z2.009

化工学报 ›› 2014, Vol. 65 ›› Issue (z2): 58-63.DOI: 10.3969/j.issn.0438-1157.2014.z2.009

加湿量对低温冷库冷风机融霜的影响

王栋^1,2, 陶乐仁¹, 刘训海¹

1. 上海理工大学能源与动力工程学院, 上海 200093;
2. 安徽工业大学建筑工程学院, 安徽马鞍山 243002

收稿日期:2014-08-21 修回日期:2014-08-31 出版日期:2014-12-30 发布日期:2014-12-30
通讯作者: 王栋
基金资助:
高等学校博士学科点专项科研基金项目(20103120110002)。

Effect of humidifying amount on defrosting of air cooler in low-temperature cold storage

WANG Dong^1,2, TAO Leren¹, TAO Leren¹

1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
2. School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, Anhui, China

Received:2014-08-21 Revised:2014-08-31 Online:2014-12-30 Published:2014-12-30
Supported by:
supported by the Specialized Research Fund for the Doctoral Program of Higher Education (20103120110002).

摘要/Abstract

摘要：

针对一套已有的低温冷库,设计了一套冷风机隔断装置,通过对冷风机电热和热气这2种不同融霜方式的实验研究,探讨了有无隔断装置两种情况下,加湿量对融霜时间、融霜负荷及融霜过程中对冷风机周围温度场的影响。结果表明:随着加湿量的增加,融霜所需的能量也相应增加,在加湿量为1000g时,融霜能量增加超过18%。电热融霜对冷库温度场破坏程度较大,融霜结束时,库温升高5~10℃。在增加隔断装置后,能耗显著减少,可达20%左右;也大大降低了对库内温度场的破坏,电热融霜时,库温最大变化量降低5℃,对于热气融霜的影响相对较小。

关键词: 传热, 隔断装置, 融霜, 相变, 温度场, 加湿

Abstract:

Experimental study of electricity defrosting and hot gas defrosting was done based on a low-temperature cold storage existing. The design of partition device was introduced. The effect of humidifying amount on defrosting time, defrosting load, temperature field around the air-cooler when defrosting were discussed at two kinds of situation with partition device or no. The results show that, with the increasing amount of humidification, defrosting energy consumed also increases accordingly, more than 18% when the humidifying capacity is 1000 g. Electricity defrosting was bigger to the damage degree of cold storage temperature field. The cold storage temperature is increased by 5℃ to 10℃. After the partition device was set up, there was a notable energy conservation effect, the temperature field of cold storage was less destroyed. The maximum change of cold storage temperature is decreased by 5℃ with electricity defrosting. The influence of the partition device to hot gas defrosting was relatively smaller.

Key words: heat transfer, partition board, defrosting, phase change, temperature field, humidification

中图分类号:

TB657.1

王栋, 陶乐仁, 刘训海. 加湿量对低温冷库冷风机融霜的影响[J]. 化工学报, 2014, 65(z2): 58-63.

WANG Dong, TAO Leren, TAO Leren. Effect of humidifying amount on defrosting of air cooler in low-temperature cold storage[J]. CIESC Journal, 2014, 65(z2): 58-63.

参考文献 14

[1]	Jia Nan(贾楠), Wu Zhaolin(吴兆林), Wang Ming(王明). The study on air-cooler's frosting performance in low temperature conditions[J]. Cryogenics and Superconductivity(低温与超导), 2009, 37(7): 59-61
[2]	Yu Zhiqiang(于志强), Liu Changfeng(刘昌丰). Hot gas defrosting automatic control system and its economical analysis[J]. Refrigeration and Air-Conditioning(制冷与空调), 2013, 13(1): 23-26
[3]	Liu Enhai(刘恩海), Nan Xiaohong(南晓红). The study on air-cooler's frosting performance in low temperature conditions[J]. Building Energy and Environment(建筑热能通风空调), 2007, 26(4): 32-36
[4]	Huang Dong(黄东), Yuan Xiuling(袁秀玲), Zhang Bo(张波), Chen Yunguang(陈蕴光). Effect of expansion devices on the dynamic characteristics of an air-source heat pump during the reverse-cycle defrost period[J]. Journal of Harbin Institute of Technology(哈尔滨工业大学学报), 2004, 36(5): 697-700
[5]	Huang Hu(黄虎), Li Zhihao(李志浩), Yu Weiping (虞维平). Dynamic simulation of air cooled heat pump chiller under defrosting condition[J]. Journal of Southeast University:Natural Science Edition (东南大学学报:自然科学版 ), 2001, 31(1): 52-56
[6]	Huang Dong (黄东), Yuan Xiuling(袁秀玲). Comparison of dynamic characteristics between the hot-gas bypass defrosting method and reverse cycle defrosting method on an air-to-water heat pump[J]. Journal of Xi'an Jiaotong University (西安交通大学学报), 2006, 40(5): 539-543
[7]	Huang Dong(黄东), Yuan Xiuling(袁秀玲), Chen Yunguang(陈蕴光), Zhang Xingqun(张兴群). Effect of expansion device on the reverse-cycle defrost time of an air-source heat pump chiller[J]. Journal of Xi'an Jiaotong University (西安交通大学学报), 2003, 37(5): 512-514
[8]	Zhong Xiaohui(钟晓晖), Zhai Yuling(翟玉玲), Gou Yujun(勾昱君), Zhou Shuguang(周树光). Numerical simulation of small cold storage under pre-cooling and defrosting conditions[J]. Journal of Engineering Thermophysics (工程热物理学报), 2011, 32(12): 2103-2105
[9]	Liu Xunhai(刘训海), Zhu Hua(朱华), Zhou Jianjian(周健健), Jiang Jingde(姜敬德). Experimental investigation of hot gas defrosting in cold storage[J].Cryogenics(低温工程), 2008, 161: 57-60
[10]	Liu Xunhai(刘训海), Jiang Jingde(姜敬德), Zhu Hua(朱华), Zhou Jianjian(周健健). Experimental comparison of electricity defrosting and hot gas defrosting in cold storage[J].Journal of Refrigeration(制冷学报), 2009, 30(3): 58-62
[11]	Li Zhenhua(李振华), Li Zhengtao(李征涛), Wang Fang(王芳), Liu Fugang(刘扶岗). The comparative analysis of hot gas defrost and electricity defrost in cold storage[J]. Refrigeration and Air-Conditioning(制冷与空调), 2011, 25(6): 577-579
[12]	Kan Ankang(阚安康), Tang Wei(汤伟). Experimental comparison research on hot gas and electricity defrost in low temperature marine cold storage[J]. Journal of Shanghai Maritime University(上海海事大学学报), 2012, 33(1): 51-55
[13]	Liu Enhai(刘恩海), Nan Xiaohong(南晓红), He Yuan(何媛). Investigation of the frosting performance and improvement of the defrosting method for an air-cooler under low temperature condition[J].Journal of Refrigeration(制冷学报), 2007, 28(2): 56-60
[14]	Fu Weilin (傅伟林), Liu Xunhai (刘训海), Liu Peng(刘鹏), Zhang Zhaohui (张朝辉). The design of a ultra-low temperature cold storage[J]. Refrigeration and Air-Conditioning(制冷与空调), 2005(4): 54-56

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加湿量对低温冷库冷风机融霜的影响

Effect of humidifying amount on defrosting of air cooler in low-temperature cold storage

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