Low-temperature methanol amine scrubbing cooler
Thread Content
Does the ammonia cooler in low-temperature methanol washing need to have its liquid level lowered when the system capacity is reduced? To maintain the balance of cold energy in the system
Generally, the liquid level of the ammonia cooler increases when the load is reduced! ! ! It’s not a decrease! The system’s flash evaporation cooling capacity is reduced; this amount of cooling needs to be supplied by the refrigeration system
As long as liquid ammonia fills the entire heat exchange tube, the liquid level in the ammonia cooler is independent of the cooling capacity and the system load; therefore, there is no need to raise the liquid level when the system’s load is reduced. On the contrary, it is important to prevent ammonia from entering the ice maker when the system’s load is decreased.
The liquid level should be lowered; less heat exchange can easily lead to an increase in the liquid level, which in turn can cause the chiller to operate with liquid inside it
Generally, when reducing the load, there is no need to change the liquid level in the ammonia cooler; only the circulation rate of methanol needs to be adjusted. The cooling capacity of methanol is ensured by the removal of CO2 through methanol, while the ammonia cooler merely compensates for the lost cooling capacity.
To save energy when the system is under load reduction, the load on the ice machine should be decreased. It is sufficient for the liquid level to remain stable.
It is necessary to lower the liquid level of the ammonia cooler. As the amount used decreases, less cooling capacity is required; therefore, its liquid level also needs to be reduced so that it can continue to function in conjunction with the system’s circulation