Research of Corrosion and Protection on Boiler and Pipelines by Condensing Water

2012 ◽  
Vol 239-240 ◽  
pp. 1589-1595
Author(s):  
Chang Shan Huang ◽  
Jin Ying Wu ◽  
Hui Wu Xu ◽  
Yu Shan Cheng ◽  
Min Zhang
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Method ◽  
Cooling Water ◽  
Corrosion Process ◽  
Steam Condensation ◽  
Recycling Process ◽  
Water Conductivity ◽  
Circulating Cooling Water ◽  
Management Flow ◽  
Pipeline Corrosion

Boiler and pipeline that using steam condensation water will be eroded when the steam condensation water absorb dissolved oxygen and carbon dioxide in the production and recycling process. In order to solve this problem, a preferably management flow and process were developed to slow down the Boiler and pipeline corrosion process by analyzing the microstructure of corrosive Boiler and pipeline with a Electrochemical method. Firstly, rinse the Boiler and pipeline with 5% citric acid at about 90 oC, after that process adding 4~6mg/L anti-filthy corrosion inhibitor to the steam condensation water and adjusting pH at 8.0~9.5 by 30% sodium hydroxide or 50% sulfuric acid. At the same time maintenance water conductivity below 1200μs/cm by discharging condensation water. This method will play an import part in managing Circulating cooling water.

Research of the Operating Parameters from Reducing Industrial Water Conductivity through Electro Sorption Technology

2012 ◽  
Vol 229-231 ◽  
pp. 2522-2526 ◽  
Author(s):  
Yang Liu ◽  
Jun Bo Zhou
Keyword(s):  
Working Conditions ◽  
Flow Rate ◽  
Cooling Water ◽  
Industrial Applications ◽  
Treatment Technology ◽  
Water Conductivity ◽  
Sewage Discharge ◽  
Circulating Cooling Water ◽  
Great Sense ◽  
Optimum Working

In order to reduce the conductivity of power-station’s circulating cooling water and reduce sewage discharge, this essay does research on using electro sorption technology to replace traditional water treatment technology. Through exploring the voltage and flow of the working module from experiment, it determined the optimum working conditions for electro sorption. The experiment includes the efficiency of reducing inlet water conductivity at different voltages, and the effect of flow rate to the treatment, proving that water conductivity will drop from 3,000 to 700 μS/cm on the condition of 1.7 V voltage and 500 L/h flow rate, which makes great sense to Electro sorption industrial applications.

scholarly journals Research on Key Technology of Electrochemical Sterilization and Physical Application for Circulating Cooling Water

2021 ◽  
Vol 2083 (2) ◽  
pp. 022068
Author(s):  
Xiaohui Wang ◽  
Chunyan Song ◽  
Xueying Xie ◽  
Nan Zhang ◽  
Ruiqing Guo ◽  
...  
Keyword(s):  
Electric Fields ◽  
Electrode Materials ◽  
High Efficiency ◽  
Thermal Power ◽  
Cooling Water ◽  
Environmentally Friendly ◽  
Research Progress ◽  
Electrode Spacing ◽  
Experimental Conditions ◽  
Circulating Cooling Water

Abstract As a high-efficiency, low-cost, convenient and environmentally friendly sterilization technology, electrochemical disinfection has developed rapidly in recent years. Electrochemical sterilization is an environmentally friendly sterilization technology. The research progress of this technology in the recent 30 years in sterilization mechanism and electrode materials is summarized. The mechanism of electrochemical sterilization includes the chemical effects of active chlorine, active intermediates, copper or silver ions, and the physical effects of electric fields; the electrode materials used are titanium anode, carbon cathode, and anode. The article combined with electrochemical equipment in a thermal power plant cold open circulating cooling water treatment experiment. Experimental research found that under the conditions of current density of 120A/m2, residence time of 10s, and electrode spacing of 1.8cm, the bactericidal effect can reach 97%. Under certain experimental conditions and a certain period of time, the total number of heterogeneous bacteria in the circulating cooling water after treatment can be effectively inhibited.

Synthesis, characterization and performance evaluation of an environmentally benign scale inhibitor IA/AMPS co-polymer

2019 ◽  
Vol 43 (24) ◽  
pp. 9472-9482 ◽  
Author(s):  
Chuanchuan Cui ◽  
Shuguang Zhang
Keyword(s):  
Performance Evaluation ◽  
Cooling Water ◽  
Water Systems ◽  
Environmentally Benign ◽  
Scale Inhibitor ◽  
Circulating Cooling Water ◽  
And Performance

An IA/AMPS co-polymer is a promising scale inhibitor applied to circulating cooling water systems against CaCO3and CaSO4.

scholarly journals Experimental study on scale and corrosion inhibition of circulating cooling water in power plant

2020 ◽  
Vol 474 ◽  
pp. 052104
Author(s):  
Shiyu Zhou ◽  
Chunbo Zhang ◽  
Jianxin Zhang ◽  
Xiyang Liu ◽  
Jingting Hu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Power Plant ◽  
Corrosion Inhibition ◽  
Cooling Water ◽  
Circulating Cooling Water

Study on Biological Aerated Filter as Enhanced Pretreatment Process of Coagulation and Sedimentation

2013 ◽  
Vol 726-731 ◽  
pp. 1940-1944 ◽  
Author(s):  
Liang Shen ◽  
Han Xiao ◽  
Wan Qiu Yang ◽  
De Ren Miao ◽  
Xiao Ming Li
Keyword(s):  
Power Plant ◽  
Water System ◽  
Cooling Water ◽  
Ammonia Nitrogen ◽  
Secondary Effluent ◽  
Biological Aerated Filter ◽  
Sedimentation Process ◽  
Cooling Water System ◽  
Circulating Cooling Water ◽  
Aerated Filter

Using coagulation and sedimentation process in the advanced treatment of urban secondary effluent which can be recycled to circulating cooling water system in power plant is only perform well on CODCrand turbidity removal. But the concentrations of organic matter and NH3in effluent can not meet the requirements of circulating cooling water. Therefore, in this study, the feasibility of biological aerated filter (BAF) as a pretreatment enhancing coagulation and sedimentation process was discussed. Achieved by controlling the two operating modes: (1) secondary effluentcoagulation and sedimentationeffluent; (2) secondary effluent BAFcoagulation and sedimentation effluent.The results show that the BAF pretreatment removes ammonia nitrogen effectively, and the turbidity and CODCrof effluent of BAF-coagulation sedimentation process is much lower than individual coagulation and sedimentation process. The final effluent qualities meet the requirements of circulating cooling water system in power plant.

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