Operation status after the modification of the zero-pole distance slot
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Dear friends from Sichuan, please share the operating current, voltage, membrane pore rate, and operating time after the electrolyzer modification. If possible, also indicate the company that carried out the modification, as our unit is also planning to carry out zero-pole-distance electrolyzer modifications.
The upgraded system operates without problems, but higher requirements are placed on operation and performance metrics; the key is to have good performance. A mature renovation plan.
After the electrolyzer is modified with a zero-polarization distance, the operating current density can be higher than before. The voltage is about 0.15V lower than before the modification. The pinhole rate of the membrane remains unchanged, provided that the grid is inspected properly before installation and that the operating conditions are followed strictly as specified in the operation manual. The operation of the modified ion-exchange membrane electrolyzer imposes higher requirements on the parameters of the refined brine.
Today I had a discussion with experts from Asahi Glass regarding renovations: 1. The decision to renovate depends on one’s own circumstances; a zero-clearance design places higher demands on operational skills and management capabilities. If one cannot meet these requirements, it is better not to proceed with the renovation, as more frequent shutdowns for membrane replacement are required after the renovation, which is not cost-effective. 2. It is crucial to find a reliable manufacturer for the renovation and to strictly oversee the renovation process. . Some factories undergo modifications again just a few months after the first ones, because they can’t get it right the first time and have no other choice. 3. Some even applied to have their original high-security passwords restored. . . 3. Make adjustments based on electricity prices and one’s own circumstances; I don’t think it’s necessary to make changes when the electricity cost is high (our factory has been making adjustments for three years now, with the membranes being replaced over and over again – it’s too much hassle). 4. Although higher currents can be achieved after the modifications, it’s not recommended to use such high currents; the previous level is sufficient. The higher the current, the faster the membranes will wear out