Lithium bromide units, seeking advice

1. Theoretically, that is the case, but in practice pressure issues must be taken into account. When the refrigerant water enters the evaporator, its evaporation pressure rises, and this pressure level affects the amount of refrigerant water that evaporates. 2. Crystallization of a concentrated solution depends on its temperature and concentration; a saturated solution will crystallize and release the dissolved substance as the temperature drops. You can try using table salt at home. 3. The evaporation temperature is affected by pressure, with the two being directly proportional to each other. 4. In lithium bromide units, the circulating water passes through the condenser and the absorber for heat exchange. When the temperature of the circulating water is low, more refrigerant water condenses in the condenser, which effectively increases the concentration of the concentrated solution. Additionally, the temperature of the dilute solution in the absorber decreases as well. Since the dilute solution and the concentrated solution exchange heat in the heat exchanger, this leads to an increase in the concentration of the concentrated solution while its temperature drops; such conditions make crystallization more likely to occur. It is recommended that you first understand the function of each component in a lithium bromide unit, and clarify the roles of the heat medium, cold medium, circulating water, and lithium bromide solution; this way, there will be no issues with the lithium bromide unit

The greater the temperature difference in the condenser, the more refrigerant water there is. But what does it mean to increase the solution concentration? I know that there is more steam and less return water. The steam remains the same; is there less return water?

When there is more refrigerant water, more refrigerant vapor is generated in the evaporator, resulting in more heat exchange. This refrigerant vapor enters the absorber where it condenses together with the circulating water to form refrigerant water. The amount of refrigerant water produced depends on both the temperature difference and the quantity of refrigerant vapor. According to Zhaohaiyou’s theory, the temperature difference between the refrigerant vapor and the water temperature in the cycle should be low

The refrigerant water enters the evaporator from the condenser and is sprayed there, where it evaporates under relatively low pressure. An excess of refrigerant water results in more gaseous refrigerant, which raises the pressure inside the evaporator; this in turn increases the evaporation temperature of the refrigerant water. In other words, it reduces the efficiency of evaporation of the refrigerant water within the evaporator. A large amount of refrigerant water remains in liquid form inside the evaporator, resulting in a decrease in the amount of refrigerant water that reaches the absorber. The concentrated solution coming from the generator mixes with the refrigerant vapor coming from the evaporator in the absorber, where it is diluted to form a dilute solution. With less solvent available for dilution, the concentration of the solution naturally increases

When there is an excess of refrigerant water in the evaporator, more refrigerant vapor is produced – this is the case in the short term. As time goes on, the situation improves. With more refrigerant vapor, the pressure increases, and as a result, the boiling point of the refrigerant water rises. In the short term, there is an excess of refrigerant vapor, but over the long term it decreases. We think about 1, and then consider the impact of the changes caused by 1 on the system. The more we think about it and the more we summarize, the better. Think about it – at first, I just wanted to take this damn engine apart

Thank you so much, senior. It’s great to meet you

The crystallization temperature keeps changing; sometimes it’s 2.5 degrees, and other times it’s 2.9 degrees. The solution concentration is around 56% I think! I didn’t pay attention to the concentration at that time; I was just wondering why it changed and what influenced it I know that for crystallization, one reason is too low a temperature, and the other is too high a concentration. What temperature does this crystallization temperature refer to? Evaporation temperature? Where is it from?

The evaporation temperature keeps changing, mainly due to the effect of the refrigerant vapor generated in the evaporator. Does an increase in the amount of refrigerant vapor inside the evaporator lead to a higher temperature, while a decrease in that amount results in a lower temperature? But I observed a situation where the inlet temperature of the circulating water decreased, and the evaporation temperature also dropped. How to understand it