| Popis: |
Through the site investigation, design a set of test apparatus used to study the cooling tower scale problem in HVDC valve cooling system, integrating the scale of more mature process on this device, through on-site validation test method to inspect the scale inhibition effect on the cooling tower in HVDC valve cooling system. Results show that the selected membrane desalination technology has great technical advantages. KEYWORD: Anti-scaling technology; HVDC convertor valve; water cooling system; scale International Conference on Industrial Technology and Management Science (ITMS 2015) © 2015. The authors Published by Atlantis Press 1149 Fig. 4 Chuxiong station Fig. 5 Zhaoqing station Fig. 6 Suidong station Fig. 7 Anshun station From the spectrum diagram ,we can see that in the dirt of the various stations, C、O、Ca element content are in the majority, the main component of the dirt in is CaCO3, some stations have Mg and Si, meaning that the dirt contains Mg (OH) 2 and SiO2. In zhaoqing station the dirt contains a certain amount of Fe, which is caused by coil corrosion, and oxidizing bactericide will bound to result in a Fe(OH) 3 large deposits, and bactericide effect will be greatly reduced. In conclusion: By investigation we believe that to find out the method of solving problem of fouling, it is necessary to do field test. |
