Rigid waterproof casing selection five elements

Rigid waterproof casing selection five elements
According to the characteristics of resin wastewater, if we want to meet the steam wastewater discharge standards, we need to carry out segmentation treatment targeted wastewater treatment, since we can not directly use biochemical treatment and flocculation method, we can first pretreat the wastewater to reduce the concentration of COD pollutants, and then subsequent treatment can be used. Rigid waterproof casing can be selected after pretreatment to significantly reduce the concentration of wastewater pollutants and to recover renewable substances in wastewater to improve utilization.
 
With rigid waterproof casing, the condensate recovery rate and industrial salt recovery can be improved, and the treatment effect is more effective than traditional physical and biochemical treatment. Rigid waterproof casing is usually evaporated in a high vacuum state, high vacuum pre-buried evaporation boiling temperature is low, the required heat energy consumption is low, the evaporation efficiency is high. If the vacuum in the equipment is too low, it will lead to pre-buried can not keep in the boiling point, and will shorten the temperature difference between pre-buried and steam to reduce the heat transfer, evaporation rate becomes low, affecting the pre-buried crystallization desalination, resulting in desalination slow or no salt problem.
 
Rigid waterproof casing is prone to pipe wall scaling, scaling material is mainly miscellaneous salt crystals, pre-buried flow process may be attached to the inside of the heat exchange surface pipe wall, the formation of nuclei will gradually grow larger blocking the pipeline can not flow, affecting the evaporation effect.
 
Rigid waterproof casing scaling layer will also affect the heat transfer efficiency, crystal heat transfer is slow, heat loss requires more heat sources to complete the evaporation, pre-buried salt rate naturally declined. Want to solve the rigid waterproof casing out of salt is very simple, one is to do a good job of regular inspection and maintenance of equipment, check whether the rigid waterproof casing needs to be repaired and replaced, timely detection of problems to solve the problem, to avoid causing greater losses. On the other hand, regular cleaning of rigid waterproof casing because it is industrial wastewater with high salt content, there is scaling is a common problem, do a good job of scaling cycle record regular cleaning, reduce the impact of scaling.