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I don’t understand at all; please advise me, sister: a set of ion exchange membrane equipment. There are 8 cells, with varying production capacities: 4 cells with a capacity of 110 units and 4 cells with a capacity of 150 units. When the system is started up, there are three options: one is to cycle through the units one by one, powering each one up until it reaches full load ; Second, everything operates in a cyclic manner, with each unit being powered on one by one until it reaches full load ; Third, it is a full cycle, after which power is supplied together, the current is increased together, and full load is reached together. I really don’t understand; please, sister, explain the advantages and disadvantages of each method as well as the things to be careful about. We also welcome all sailors to share their insights and see which method everyone prefers
2 to 4 units can be operated simultaneously. I want to know how many saltwater and alkali solution systems, as well as how many hydrogen chloride systems, there are for your two sets of electrolyzers?
For 8 electrolytic cells with different numbers of plates, the steps for starting them are the same, and the order doesn’t really matter; it’s fine to start with whichever one first. I lean towards the first one. (The other two aren’t bad either); let me share my opinion. The first method is to turn them on one by one. The advantage of this is that if a problem occurs, such as a pressure difference interlock causing shutdown, it will not affect the other units that haven’t been turned on; only the units that are currently running will be damaged. With the latter two methods of operation, circulation takes place, and the vapor phase in all 8 tanks is connected to the vapor phase of the main pipe; if a pressure difference causes the valve to close, then none of the 8 tanks will be able to avoid being affected. Because when the slot is operated at a certain current level, it is necessary to check the purity of hydrogen chloride; once it meets the requirements, it can be connected to the hydrogen chloride processing unit. (I don’t know if it’s the same where you are,) it’s very dangerous when connecting to the grid; if the operations and coordination aren’t proper, the system can shut down. Especially in companies where people have just started driving, this problem arises easily because they are all beginners. So I prefer the first method; it’s safer. At the same time, the labor intensity of grooving is also very high; the processes of filling liquid and cycling make the operations feel quite intensive, which in turn causes the operators to feel tired and stressed. So personally, I think the first option is better – take it slow and don’t rush.
I prefer the second method of operation; it’s simpler and allows for better control of pressure. Press the buttons in the order 12345678, starting with the one that is farthest from the chlorine and hydrogen treatment unit
This post was last edited by sister on 2009-11-9 00:34. Based on the original poster’s description, it seems to be two secondary brine dechlorination systems and two chlorine-hydrogen pressure control systems. I’m not sure if it’s correct. However, for any type of cell, the second approach is not appropriate, as it involves the issue of returning brine to the cell; circulating saltwater containing free chlorine before power is applied can damage the membrane. For newly established enterprises, due to system instability and insufficient proficiency of the operators, it is best to fill, circulate, connect, and start up the equipment in pairs. Why not one but two? Because most rectifiers these days are of the 1-to-2 type. For a stable system with skilled personnel, one set of the system is operated at a time, that is, 4 tanks are used sequentially. If Huawei’s leadership is in a hurry, they can supply power to all 8 slots at once – it will be quite spectacular!
Answering my sister’s and 181128245’s questions. Except that there are multiple electrolysis cells, everything else is shared; including primary brine, secondary brine, pure water, dechlorination, circulation, and chlorohydrin treatment – all are part of the same system. I think the third method is good: after filling all 8 cells with liquid, switch to external circulation for them all at once, then change to internal circulation as well, and supply power to them all together while increasing the current simultaneously. Isn’t that great and simple? The person who is defiantly cautious says that running all 8 tanks simultaneously could cause a power failure and damage all of them; there is indeed such a potential risk. But if they are run one by one, won’t that affect the other tanks? What if a problem occurs when driving to the 8th slot? Perhaps my sister was tired from working the night shift, which made her answer questions in a hurry and prevented her from showing her true abilities. I believe that today she will provide everyone with a new, more comprehensive, and detailed response. I also welcome all of you to continue the discussion; I would greatly benefit from it.
Huawei, driving in this way to adjust the pressure must be extremely busy – you have to adjust both the traffic volume and the pressure. Is there enough staff for this?:funk:
Currently, most electrolysis plants have only two operators on site, so it is unlikely that all eight cells can be filled with liquid at the same time, unless there are enough workers available.
Personally, I think the third method is better; it is more convenient for raising the temperature of saline and alkaline solutions as well as for polarization. It is also easier to handle free Cl2 when increasing the current, and to switch to the low-pressure machine and the chlorine-hydrogen treatment unit. Additionally, it requires fewer operations by the personnel on site
To be honest, it’s hard to reply to this because there are quite a few details and precautions to consider. Please leave me your email address; I’ll see if I can find some information to send to you
My choice is divided into two parts. First, cycle through four, then drive in sequence. Then repeat four more times, driving in sequence. Only four are held per class. The operators aren’t that tired.