RESEARCH PROGRESS ON MECHANICAL VAPOR RECOMPRESSION HEAT PUMP DRYING

FU Wei-liang; ZHANG Cheng-zhen; CHEN Meng; CHEN Yi-lin; ZHANG Xu-kun; ZHU Bao-li; XING Pu

doi:10.13205/j.hjgc.202105018

Volume 39 Issue 5

Jan. 2022

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(5): 131-134

FU Wei-liang, ZHANG Cheng-zhen, CHEN Meng, CHEN Yi-lin, ZHANG Xu-kun, ZHU Bao-li, XING Pu. RESEARCH PROGRESS ON MECHANICAL VAPOR RECOMPRESSION HEAT PUMP DRYING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(5): 131-134. doi: 10.13205/j.hjgc.202105018

Citation:

FU Wei-liang, ZHANG Cheng-zhen, CHEN Meng, CHEN Yi-lin, ZHANG Xu-kun, ZHU Bao-li, XING Pu. RESEARCH PROGRESS ON MECHANICAL VAPOR RECOMPRESSION HEAT PUMP DRYING[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(5): 131-134. doi: 10.13205/j.hjgc.202105018

Citation:

PDF( 1243 KB)

RESEARCH PROGRESS ON MECHANICAL VAPOR RECOMPRESSION HEAT PUMP DRYING

doi: 10.13205/j.hjgc.202105018

Environmental Protection Equipment Technology Research Institute, Nanchang Hangkong University, Nanchang 330063, China

Received Date: 2020-06-03
Available Online: 2022-01-17

Abstract

Abstract

Drying is a process in which the moisture in the material absorbs enough sensible heat and latent heat. Moisture evaporation consumes a lot of heat, and produces a large quantity of secondary steam. According to the principle of high efficiency and energy saving of MVR heat pump,if the secondary steam whose enthalpy is increased by mechanical steam recompression technology, is used as the heat source in the drying process, all latent heat of the secondary steam can be recovered. The exchange of latent heat of evaporation and vaporization with latent heat of condensation was realized in the system, and the energy saving effect was remarkable. This paper summarized the application of MVR heat pump drying, and expounded the advantages of superheated steam as MVR heat pump drying medium, as well as the problems to be considered in the design of MVR heat pump dryer and the selection of compressor. It was pointed out that the inlet and outlet should minimize the non-condensable gas entering into the drying system, avoiding the influence of non-condensable gas on condensation heat transfer in the drying process.
- MVR,
- drying,
- superheated steam,
- non-condensable gas

FullText(HTML)

References(25)

References

[1]	MUJUMDAR A S. 工业化干燥原理与设备[M]张慜,范柳萍,等译. 北京:中国轻工业出版社,2007.
[2]	潘永康,王喜忠,刘相东. 现代干燥技术[M]. 北京:化学工业出版社,2006.
[3]	陈阶亮. 大型城市污水处理厂污泥热干化和协同焚烧无害化的理论和应用研究:以七格污水厂为例[D]. 杭州:浙江大学,2017.
[4]	HOADLEY A F A, QI Y, NGUYEN T, et al. A field study of lignite as a drying aid in the superheated steam drying of anaerobically digested sludge[J]. Water Research,2015, 82(4):58-65.
[5]	王伟云. 污泥间接薄层干燥与热压力耦合脱水干燥研究[D]. 大连:大连理工大学,2012.
[6]	梁林. 处理高浓度含盐废水的机械蒸汽再压缩系统设计及性能研究[D]. 南京:南京航空航天大学,2013.
[7]	沈九兵,张凯,邢子文,等. 采用双螺杆压缩机的机械蒸汽再压缩污水处理系统试验研究[J]. 机械工程学报,2016,52(10):187-191.
[8]	杨德明,叶梦飞,谭建凯,等. 机械蒸汽再压缩(MVR)热泵技术的应用进展[J]. 常州大学学报,2015,27(1):76-80.
[9]	戴群特,杨鲁伟,张振涛,等. 蒸汽再压缩热泵系统用于固体干燥节能分析[J]. 节能技术,2010,26(4):353-356.
[10]	夏磊. MVR热泵干燥系统建立和恒速段的实验研究[D]. 杭州:浙江工业大学,2015.
[11]	张华博. 机械蒸汽再压缩技术在盘式干燥器中的应用分析[D]. 石家庄:河北工业大学,2015.
[12]	周雷. 基于机械蒸汽再压缩的低温干燥系统设计与性能研究[D]. 南京:南京航天航空大学,2013.
[13]	陈海. MVR-耙式干燥系统设计及其性能研究[D]. 杭州:浙江工业大学,2017.
[14]	LIU Y P, AZIZ M, KANSHA Y, et al. A novel exergy recuperative drying module and its application for energy-saving drying with superheated steam[J]. Chemical Engineering Science,2013,100:392-401.
[15]	王秋林. 过热蒸汽煤干燥与清洁燃烧关联性分析及评价方法研究[D]. 天津:天津大学,2014.
[16]	KOZANOGLU B, SÁNCHEZ-HUERTA Á, GUERRERO-BELTRÁN J A, et al. Drying characteristics of coriander seed particles in a reduced pressure superheated steam fluidized bed[J]. Chemical Engineering Communications,2016,203:1227-1233.
[17]	KUDRA T, MUJUMDER A S. 先进干燥技术[M]李占勇,译. 北京:化学工业出版社,2005.
[18]	吴迪,胡斌,王如竹,等. 水制冷剂及水蒸汽压缩机研究现状和展望[J]. 化工学报,2017,68(8):2959-2968.
[19]	庞卫科,林文举,潘麒麟,等. 离心风机驱动机械蒸汽再压缩热泵系统的性能分析[J]. 机械工程学报,2013,49(6):142-146.
[20]	YANG J L, ZHANG C, ZHANG Z T, et al. Study on mechanical vapor recompression system with wet compression single screw compressor[J]. Applied Thermal Engineering,2016,103:204-211.
[21]	郭霆,沈九兵,田雅芬,等. 螺杆蒸汽压缩机工作过程喷水冷却特性研究[J]. 机械工程学报,2015,52(24):147-153.
[22]	PHUNGAMNGOEN C, CHIEWCHAN N, DEVAHASTIN S. Thermal resistance of Salmonella enterica serovar Anatum on cabbage surfaces during drying:effects of drying methods and conditions[J]. International Journal of Food Microbiology,2011,147(2):127-133.
[23]	王力威,庄景发,杨鲁伟,等. 单螺杆蒸汽压缩机驱动的MVR系统性能实验研究[J]. 中国科学院大学学报,2015,32(1):38-45.
[24]	王立国. 含大量不凝气的蒸汽冷凝传热实验研究[D]. 天津:天津大学,2005.
[25]	黄建. 蒸汽在高分压不凝气体中扩散流动的传质研究[D]. 北京:北京科技大学,2017.