Why does the solution concentration in lithium bromide units keep decreasing during operation?
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The lithium bromide units in use at our factory have seen a continuous decrease in the concentration of the solution during operation this year; it dropped from 54% to 51%, and then reached the lower limit set by the unit for shutting down the refrigerant pump. Even after the unit continued to operate, the solution concentration fell further to 50%. There was no other option but to adjust the upper and lower limits for starting and stopping the refrigerant pump, so as to enable the pump to circulate and gradually increase the solution concentration. Once the concentration returned to 53%, the parameters were adjusted back to their normal values. However, this problem keeps recurring. Why is that?
This is the dynamic diagram of the concentrated solution operation along with the operating parameters; for some reason, the images couldn’t be uploaded when posting
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