静压支承技术在海水淡化旋转式能量回收装置中的应用

doi:10.16085/j.issn.1000-6613.2018-0896

化工进展 ›› 2019, Vol. 38 ›› Issue (02): 798-804.DOI: 10.16085/j.issn.1000-6613.2018-0896

静压支承技术在海水淡化旋转式能量回收装置中的应用

田俊杰^1,^2,³(),王越^1,^2,³(),吴家能^1,^2,³,周杰^1,^2,³,徐世昌^1,³

1. 天津大学化工学院化学工程研究所，天津 300350
2. 化学工程联合国家重点实验室，天津 300350
3. 天津市膜科学与海水淡化技术重点实验室，天津 300350

收稿日期:2018-05-02 修回日期:2018-08-03 出版日期:2019-02-05 发布日期:2019-02-05
通讯作者: 王越
作者简介:<named-content content-type="corresp-name">田俊杰</named-content>（1992—），男，硕士研究生，研究方向为海水淡化能量回收装置开发。E-mail：<email>tjjie123@163.com</email>。|王越，教授，研究方向为海水淡化技术与装备开发。E-mail：<email>tdwy75@tju.edu.cn</email>。
基金资助:
国家重点研发计划(2017YFC0403800);化学工程联合国家重点实验室探索性课题(SKL-ChE-17T07)

Application research of hydrostatic bearing technology in rotary energy recovery device for seawater desalination system

Junjie TIAN^1,^2,³(),Yue WANG^1,^2,³(),Jianeng WU^1,^2,³,Jie ZHOU^1,^2,³,Shichang XU^1,³

1. Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
2. State Key Laboratory of Chemical Engineering, Tianjin 300350, China
3. Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300350, China

Received:2018-05-02 Revised:2018-08-03 Online:2019-02-05 Published:2019-02-05
Contact: Yue WANG

摘要/Abstract

摘要：

海水淡化旋转式能量回收装置（RERD）高、低压流体间的泄漏主要在转子与端盘的配合间隙中发生，这种泄漏直接影响到装置的能量回收效率水平。本文通过在平面端盘上引入阻尼孔和静压支承槽，构建了静压支承端盘方案，将静压支承技术应用到自主开发的电驱RERD装置中，以解决其运行过程中泄漏量大、能量回收效率低等问题。在转子与上、下端盘配合总间隙为0.04mm、转子转速为500r/min的条件下，RERD分别使用平面端盘和静压支承端盘进行对比实验研究。结果表明，在操作压力为4.5MPa和处理量为13m³/h的工况下，与平面端盘相比，采用1^#静压支承端盘（静压支承槽槽宽为2.0mm）时，装置的泄漏量从0.45m³/h减小至0.28m³/h，能量回收效率从91.3%提升至92.7%。采用2^#静压支承端盘（静压支承槽槽宽为3.0mm）的RERD在相同工况下，装置的泄漏量可降低至0.11m³/h，能量回收效率提升到95.0%。上述研究显示静压支承技术对于减小RERD装置泄漏量、提高装置效率具有显著的效果，对RERD装置密封结构设计与优化具有指导意义。

关键词: 能量回收装置, 能量回收效率, 泄漏量, 静压支承, 操作压力

Abstract:

The leakage between high and low pressure fluids in the rotary energy recovery device (RERD) for seawater desalination system, which has direct effect on the energy recovery efficiency of the RERD, mainly occurs in the mating clearances between the rotor and the end plates. This research employed the hydrostatic bearing technology into the self-developed motor-driven RERD by making the hydrostatic bearing groove and the damping hole on the flat end plate and creating the hydrostatic bearing end plates to reduce the leakage and improve the efficiency of RERD. The RERD with flat end plates and the RERD with hydrostatic bearing end plates were experimentally compared under the total mating clearance of 0.04mm and rotating speed of 500r/min. The results showed that under the testing conditions of operating pressure of 4.5MPa and capacity of 13m³/h, the leakage of the RERD with 1^# hydrostatic bearing end plates (groove width of 2.0mm) could decrease from 0.45m³/h to 0.28m³/h and the energy recovery efficiency could increase from 91.3% to 92.7% when compared with the RERD with flat end plates. The RERD with 2^# hydrostatic bearing end plates (groove width of 3.0mm) was tested under the same operating condition. The leakage was lowered to 0.11m³/h and the efficiency was improved to 95.0%. The research above indicates the significant effect of the hydrostatic bearing technology in reducing the leakage and improving the efficiency of the RERD, and has important guiding significance for the design and optimization of seal structure of the RERD.

Key words: energy recovery device, energy recovery efficiency, leakage, hydrostatic bearing, operating pressure

中图分类号:

TQ051

田俊杰, 王越, 吴家能, 周杰, 徐世昌. 静压支承技术在海水淡化旋转式能量回收装置中的应用[J]. 化工进展, 2019, 38(02): 798-804.

Junjie TIAN, Yue WANG, Jianeng WU, Jie ZHOU, Shichang XU. Application research of hydrostatic bearing technology in rotary energy recovery device for seawater desalination system[J]. Chemical Industry and Engineering Progress, 2019, 38(02): 798-804.

图/表 11

图1 电驱旋转式能量回收装置的结构示意图

图2 静压支承技术原理示意图

图3 平面端盘结构示意图

图4 静压支承端盘结构示意图

图5 反渗透海水淡化实验平台图

图6 旋转式能量回收装置耦合于反渗透海水淡化系统的现场图

图7 RERD的高压盐水流量特性曲线

图8 0#RERD的泄漏量和能量回收效率

图9 1#RERD的泄漏量和能量回收效率

图10 2#RERD的泄漏量和能量回收效率

表1 1#RERD和2#RERD的静压支承开启压力和开启力

装置	开启压力/MPa	开启力/N
1^#RERD	3.0	2375.0
2^#RERD	2.0	2375.0

参考文献 13

1	LIUNing, LIUZhongliang, LIYanxia, et al. Development and experimental studies on a fully-rotary valve energy recovery device for SWRO desalination system[J]. Desalination, 2016, 397: 67-74.
2	CarlosLOPEZ-MONLLOR, SoraniaRODRÍGUEZ-GÓMEZ, RaquelIGLESIAS-ESTEBAN, et al. Analysis of the influence of the configuration in ERD retrofit in two-stage SWRO trains[J]. Journal of Membrane Science, 2016, 503: 116-123.
3	JIANGAipeng, WANGJian, BIEGLER LorenzT, et al．Operational cost optimization of a full-scale SWRO system under multi-parameter variable conditions[J]. Desalination, 2015, 355: 124-140.
4	WANGYue, RENYafei, ZHOUJie, et al．Functionality test of an innovative single-cylinder energy recovery device for SWRO desalination system[J]. Desalination, 2016, 388 : 22-28.
5	BeatSCHNEIDER. Selection, operation and control of a work exchanger energy recovery system based on the Singapore project[J]. Desalination, 2005, 184 (1): 197-210.
6	STOVER RichardL. Seawater reverse osmosis with isobaric energy recovery devices[J]. Desalination, 2007, 203 (1): 168-175.
7	WULiming, WANGYue, XUEnle, et al．Employing groove-textured surface to improve operational performance of rotary energy recovery device in membrane desalination system[J]. Desalination, 2015, 369 : 91-96.
8	LAITahua, CHANGTingyu, YANGYalu, et al．Parameters design of a membrane-type restrictor with single-pad hydrostatic bearing to achieve high static stiffness[J]. Tribology International, 2017, 107: 206-212.
9	JyhchyangRENN, WenjenHSU, LIYunruei. An innovative spool-type pressure feedback restrictor for hydrostatic bearings[J]. Smart Science, 2016, 4(4): 203-208.
10	XUEnle, WANGYue, WUJianeng, et al．Investigations on the applicability of hydrostatic bearing technology in a rotary energy recovery device through CFD simulation and validating experiment[J]. Desalination, 2016, 383: 60-67.
11	WUJian, LUXiaohua, FENGXin, et al．Halogen-free ionic liquids as excellent lubricants for PEEK-stainless steel contacts at elevated temperatures[J]. Tribology International, 2016, 104: 1-9.
12	YANGYing. Sensitivity of nanoindentation strain rate in poly(ester-ester-ketone) using atomic force microscopy[J]. Polymer Testing, 2016, 53: 85-88.
13	高从堦, 周勇, 刘立芬．反渗透海水淡化技术现状和展望[J]. 海洋技术学报, 2016, 35(1): 1-14．
	GAOCongjie, ZHOUYong, LIULifen. Recent development and prospect of seawater reverse osmosis desalination technology[J]. Journal of Ocean Technology, 2016, 35(1): 1-14．

[1]	程百花1，2，王越1，2，许恩乐1，2，孙扬平1，2，徐世昌1，2，王世昌1，2. 旋转式能量回收装置的启动与运行特性[J]. 化工进展, 2013, 32(09): 2030-2034.
[2]	陈艳艳1，2，王越1，2，王照成1，2，徐世昌1，2，王世昌1，2. 海水淡化能量回收装置用分腔式切换器研究[J]. 化工进展, 2012, 31(10): 2162-2166.

静压支承技术在海水淡化旋转式能量回收装置中的应用

Application research of hydrostatic bearing technology in rotary energy recovery device for seawater desalination system

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 11

参考文献 13

相关文章 2

编辑推荐

Metrics

本文评价