Analysis of composite modified surface inhibiting particle fouling accumulation characteristics

doi:10.11949/0438-1157.20220806

Abstract

Abstract:

Particle fouling of heat exchange equipment generally refers to the accumulation of solid particles suspended in the fluid on the heat exchange surface. In this research, an anti-fouling Ni-P-TiO₂ composite modified surface was created and applied in a plate heat exchanger to prevent the accumulation of nano-MgO particle fouling on the heat exchange surface. The effects of cooling water flow rate (0.1—0.3 m/s), input temperature (30—40℃), and nano-MgO concentration (100—400 mg/L) on the anti-fouling property of Ni-P-TiO₂ composite modified surface were investigated experimentally. The results showed that the asymptotic values of the nano-MgO particle fouling thermal resistance on the Ni-P-TiO₂ composite modified heat exchanger surface were significantly reduced under all experimental conditions. Compared with the original plate heat exchanger, with the cooling water flow rate increasing (0.1—0.3 m/s), the fouling thermal resistance asymptotic values on Ni-P-TiO₂ composite surface were decreased by 27.85%—34.41%, with the cooling water inlet temperature increasing (30—40℃), the values were decreased by 25.15%—39.14%, and the values were decreased by 26.15%—45.36% with the nano-MgO particle concentration increasing (100-400 mg/L) accordingly. The antifouling property of Ni-P-TiO₂ composite modified surface was analyzed combined with the surface energy, and the surface energy of the created Ni-P-TiO₂ composite modified surface was found to be near to the surface energy of the nano-MgO particle fouling deposition, which agreed to Zhao's "optimal surface energy" anti-fouling theory. Compared with the 316 stainless steel surface, the Ni-P-TiO₂ composite modified surface not only inhibited particle fouling accumulation, but also reduced particle strength of fouling deposition, so that particle fouling deposition was easier to remove from the composite modified surface, which achieved the purpose of enduring and efficient fouling inhibition and mitigation on heat exchange surface.

Key words: heat transfer, deposition, composite modified surface, two-phase flow, anti-fouling property

摘要：

换热设备颗粒污垢一般指悬浮在流体中的固体颗粒在换热面上的积聚。开发了一种Ni-P-TiO₂防垢型复合改性表面，并将之用于板式换热器抑制纳米MgO颗粒污垢在换热表面的积聚。基于搭建的板式换热器颗粒污垢热阻动态监测实验系统，研究了不同冷却水流速(0.1~0.3 m/s)、入口温度(30~40℃)及纳米MgO浓度(100~400 mg/L)对Ni-P-TiO₂复合改性换热表面抑垢特性的影响。结果表明，随着流速的增加，污垢热阻渐近值减小了27.85%~34.41%；随着冷却水入口温度的升高，污垢热阻渐近值减小了25.15%~39.14%；随着MgO颗粒浓度的增加，热阻渐近值减小了26.15%~45.36%。结合Ni-P-TiO₂复合改性表面的表面能分析了其表面的抑垢性能，发现制备的Ni-P-TiO₂复合改性表面的表面能与纳米MgO颗粒污垢层的表面能相接近，符合Zhao提出的“最优表面能”抑垢理论。与常规板式换热器不锈钢表面相比，Ni-P-TiO₂复合改性表面不仅抑制了颗粒污垢的积聚，还降低了颗粒污垢的固着强度，使得积聚其上的颗粒污垢更容易被剥离换热表面，实现了换热表面持久高效抑垢。

关键词: 传热, 沉积物, 复合改性表面, 两相流, 抑垢特性

CLC Number:

TK 124

Zuodong LIU, Yuchen WANG, Weiwei XING, Bo ZHAO, Zhiming XU. Analysis of composite modified surface inhibiting particle fouling accumulation characteristics[J]. CIESC Journal, 2022, 73(11): 4928-4937.

刘坐东, 王禹晨, 邢维维, 赵波, 徐志明. 复合改性表面抑制颗粒污垢积聚特性分析[J]. 化工学报, 2022, 73(11): 4928-4937.

Figures/Tables 12

Table 1 Parameters of plate heat exchanger

材料

板片尺寸/mm

波纹

形式

Fig.1 The morphology of Ni-P-TiO2 composite modified surface

Table 2 Contact angle and surface energy of heat exchange surface

表面	接触角θ/(°)			表面能/(mJ/m²)
表面	θ^w	θ^Di	θ^EG	γ^LW	γ^-	γ⁺	γ^TOT
316不锈钢	95.6	25.7	48.5	44.56	2.29	0.81	47.09
Ni-P-TiO₂	98.7	47.6	71.0	35.58	0.66	0.05	35.93

Fig.2 Experimental system construction

Fig.3 Stability verification of experimental system

Fig.4 Microstructure of particle fouling on heat exchange surface

Fig.5 Comparison of fouling thermal resistance on heat exchange surfaces at different flow rates

Fig.6 Wall shear force changes of the two surfaces at different flow rates

Fig.7 The asymptotic value of fouling thermal resistance changes at different flow rates

Fig.8 Comparison of fouling thermal resistance of two heat exchange surfaces at different temperatures

Fig.9 Comparison of fouling thermal resistance on two surfaces with different particle concentration

Fig.10 Comparison of final fouling deposition between composite surface (left) and stainless steel plate (right) at MgO concentration of 400 mg/L

References 41

8	Xu Z M, Wang J T, Wang L, et al. Experimental analysis on particulate fouling characteristics of alternating elliptical axis tube[J]. Chemical Industry and Engineering Progress, 2014, 33(4): 831-836.
9	徐志明, 程永林, 王景涛, 等. 运行工况参数对四面体涡流发生器MgO颗粒污垢特性的影响[J]. 中国电机工程学报, 2018, 38(22): 6623-6632.
	Xu Z M, Cheng Y L, Wang J T, et al. Effect of operating conditions on fouling characteristics of MgO particulate fouling with tetrahedral vortex generators[J]. Proceedings of the CSEE, 2018, 38(22): 6623-6632
10	Xu Z M, Liu Z D, Zhang Y L, et al. The experiment investigation of cooling-water fouling mechanism-associated water quality parameters in two kinds of heat exchanger[J]. Heat Transfer Engineering, 2016, 37(3/4): 290-301.
11	张冠敏, 李冠球, 李蔚, 等. 板式换热器内颗粒污垢预测模型与实验[J]. 工程热物理学报, 2013, 34(9): 1715-1718.
	Zhang G M, Li G Q, Li W, et al. Experimental and theoretical investigations about particulate fouling in plate heat exchangers[J]. Journal of Engineering Thermophysics, 2013, 34(9): 1715-1718.
12	李红霞, 李冠球, 李蔚. 管内颗粒污垢特性分析[J]. 浙江大学学报(工学版), 2012, 46(9): 1671-1677.
	Li H X, Li G Q, Li W. Analysis of in tubes particulate fouling characteristic[J]. Journal of Zhejiang University (Engineering Science), 2012, 46(9): 1671-1677.
13	邢晓凯, 荆冬锋. CaCO₃结垢过程控制机理分析[J]. 热能动力工程, 2007, 22(3): 336-339, 350.
	Xing X K, Jing D F. An analysis of the mechanism governing the control of CaCO₃ scale formation process[J]. Journal of Engineering for Thermal Energy and Power, 2007, 22(3): 336-339, 350.
14	Nikkhah V, Sarafraz M M, Hormozi F, et al. Particulate fouling of CuO-water nanofluid at isothermal diffusive condition inside the conventional heat exchanger-experimental and modeling[J]. Experimental Thermal and Fluid Science, 2015, 60: 83-95.
15	Chamra L M, Webb R L. Modeling liquid-side particulate fouling in enhanced tubes[J]. International Journal of Heat and Mass Transfer, 1994, 37(4): 571-579.
16	Kasper R, Turnow J, Kornev N. Multiphase Eulerian-Lagrangian LES of particulate fouling on structured heat transfer surfaces[J]. International Journal of Heat and Fluid Flow, 2019, 79: 108462.
17	Deponte H, Kasper R, Schulte S, et al. Experimental and numerical approach to resolve particle deposition on dimpled heat transfer surfaces locally and temporally[J]. Chemical Engineering Science, 2020, 227: 115840.
18	Li N, Yang Q R, Yao E R, et al. Synergism between particulate and microbial fouling on a heat transfer surface using treated sewage water[J]. Applied Thermal Engineering, 2019, 150: 791-802.
19	Frota M N, Ticona E M, Neves A V, et al. On-line cleaning technique for mitigation of biofouling in heat exchangers: a case study of a hydroelectric power plant in Brazil[J]. Experimental Thermal and Fluid Science, 2014, 53: 197-206.
20	Rahmani K, Jadidian R, Haghtalab S. Evaluation of inhibitors and biocides on the corrosion, scaling and biofouling control of carbon steel and copper-nickel alloys in a power plant cooling water system[J]. Desalination, 2016, 393: 174-185.
21	Al-Bloushi M, Saththasivam J, Jeong S, et al. Effect of organic on chemical oxidation for biofouling control in pilot-scale seawater cooling towers[J]. Journal of Water Process Engineering, 2017, 20: 1-7.
22	Chen X M, Chen G H, Yue P L. Separation of pollutants from restaurant wastewater by electrocoagulation[J]. Separation and Purification Technology, 2000, 19(1/2): 65-76.
23	Edzwald J K, Haarhoff J. Seawater pretreatment for reverse osmosis: chemistry, contaminants, and coagulation[J]. Water Research, 2011, 45(17): 5428-5440.
24	Nagai T, Hiratsuka M, Alanazi A, et al. Anticorrosion of DLC coating in acid solutions[J]. Applied Surface Science, 2021, 552: 149373.
25	Pei M L, Pan C G, Wu D, et al. Surface hydrophilic-hydrophobic reversal coatings of polydimethylsiloxane-palygorskite nanosponges[J]. Applied Clay Science, 2020, 189: 105546.
26	Oldani V, Bianchi C L, Biella S, et al. Perfluoropolyethers coatings design for fouling reduction on heat transfer stainless-steel surfaces[J]. Heat Transfer Engineering, 2016, 37(2): 210-219.
27	Cheng Y H, Zou Y, Cheng L, et al. Effect of the microstructure on the properties of Ni-P deposits on heat transfer surface[J]. Surface and Coatings Technology, 2009, 203(12): 1559-1564.
28	Cheng Y H, Chen H Y, Zhu Z C, et al. Experimental study on the anti-fouling effects of Ni-Cu-P-PTFE deposit surface of heat exchangers[J]. Applied Thermal Engineering, 2014, 68(1/2): 20-25.
1	Schnöing L, Augustin W, Scholl S. Fouling mitigation in food processes by modification of heat transfer surfaces: a review[J]. Food and Bioproducts Processing, 2020, 121: 1-19.
2	Pourabdollah K. Fouling formation and under deposit corrosion of boiler firetubes[J]. Journal of Environmental Chemical Engineering, 2021, 9(1): 104552.
3	Awais M, Bhuiyan A A. Recent advancements in impedance of fouling resistance and particulate depositions in heat exchangers[J]. International Journal of Heat and Mass Transfer, 2019, 141: 580-603.
4	Sholahudin, Giannetti N, Yamaguchi S, et al. A cost effective and non-intrusive method for performance prediction of air conditioners under fouling and leakage effect[J]. Sustainable Energy Technologies and Assessments, 2020, 42: 100856.
5	杨善让, 徐志明, 孙灵芳, 等. 换热设备污垢与对策[M]. 2版. 北京: 科学出版社, 2004.
	Yang S R, Xu Z M, Sun L F, et al. Fouling and Countermeasures of Heat Exchanger[M]. 2nd ed. Beijing: Science Press, 2004.
6	国家统计局. 中华人民共和国2021年国民经济和社会发展统计公报[EB/OL].[2022-02-28]. .
	National Bureau of Statistics. Statistical Bulletin of the People's Republic of China on National Economic and Social Development in 2021[EB/OL]. [2022-02-28]. .
7	徐志明, 董兵, 杜祥云, 等. 板式换热器颗粒污垢特性的实验研究[J]. 动力工程学报, 2013, 33(7): 539-543.
	Xu Z M, Dong B, Du X Y, et al. Experimental study on particle fouling in plate heat exchangers[J]. Journal of Chinese Society of Power Engineering, 2013, 33(7): 539-543.
8	徐志明, 王景涛, 王磊, 等. 交叉缩放椭圆管颗粒污垢特性的实验分析[J]. 化工进展, 2014, 33(4): 831-836.
29	杨倩鹏, 田磊, 常思远, 等. 换热表面镀银抑制微生物污垢综合分析[J]. 工程热物理学报, 2014, 35(2): 354-357.
	Yang Q P, Tian L, Chang S Y, et al. Comprehensive analysis of heat transfer surface silver coating effects on biofouling inhibition[J]. Journal of Engineering Thermophysics, 2014, 35(2): 354-357.
30	Ahn H S, Kim K M, Lim S T, et al. Anti-fouling performance of chevron plate heat exchanger by the surface modification[J]. International Journal of Heat and Mass Transfer, 2019, 144: 118634.
31	Jindal S, Anand S, Metzger L, et al. Short communication: a comparison of biofilm development on stainless steel and modified-surface plate heat exchangers during a 17-h milk pasteurization run[J]. Journal of Dairy Science, 2018, 101(4): 2921-2926.
32	Matjie R, Zhang S, Zhao Q, et al. Tailored surface energy of stainless steel plate coupons to reduce the adhesion of aluminium silicate deposit[J]. Fuel, 2016, 181: 573-578.
33	Aal A A, Hassan H B, Rahim M A A. Nanostructured Ni-P-TiO₂ composite coatings for electrocatalytic oxidation of small organic molecules[J]. Journal of Electroanalytical Chemistry, 2008, 619/620: 17-25.
34	Novakovic J, Vassiliou P, Samara K, et al. Electroless NiP-TiO₂ composite coatings: their production and properties[J]. Surface and Coatings Technology, 2006, 201(3/4): 895-901.
35	Chen W W, Gao W, He Y D. A novel electroless plating of Ni-P-TiO₂ nano-composite coatings[J]. Surface and Coatings Technology, 2010, 204(15): 2493-2498.
36	Agarwala R C, Agarwala V. Electroless alloy/composite coatings: a review[J]. Sadhana, 2003, 28(3/4): 475-493.
37	Shibli S M A, Dilimon V S. Effect of phosphorous content and TiO₂-reinforcement on Ni-P electroless plates for hydrogen evolution reaction[J]. International Journal of Hydrogen Energy, 2007, 32(12): 1694-1700.
38	Zhao Q, Liu C, Su X J, et al. Antibacterial characteristics of electroless plating Ni-P-TiO₂ coatings[J]. Applied Surface Science, 2013, 274: 101-104.
39	Shao W, Zhao Q. Effect of corrosion rate and surface energy of silver coatings on bacterial adhesion[J]. Colloids and Surfaces B: Biointerfaces, 2010, 76(1): 98-103.
40	Liu C, Zhao Q. The CQ ratio of surface energy components influences adhesion and removal of fouling bacteria[J]. Biofouling, 2011, 27(3): 275-285.
41	刘坐东, 李斯琪, 邢维维, 等. 板式换热器Ni-P-TiO₂复合纳米镀层微生物污垢特性[J]. 化工学报, 2020, 71(8): 3535-3544.
	Liu Z D, Li S Q, Xing W W, et al. Characteristics of microbial fouling on Ni-P-(nano) TiO₂ composite coating of plate heat exchanger[J]. CIESC Journal, 2020, 71(8): 3535-3544.

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