Evaporators are used in many places in industrial production. After the evaporator has been used for a period of time, it needs to be cleaned, which can delay the scaling and blockage of the evaporator and ensure its continuous and stable operation. So how should the evaporator be cleaned? The following small series will introduce to you the cleaning plan of the evaporator.
At present, there are two common mainstream cleaning schemes for evaporator cleaning in the market, one is shutdown cleaning and online cleaning, and the methods used can be divided into physical cleaning and chemical cleaning.
Evaporator cleaning methods can be divided into physical cleaning and chemical cleaning in a conventional sense. Generally speaking, physical cleaning is commonly used, but if physical cleaning cannot be thoroughly cleaned, then chemical cleaning should be used. In the physical cleaning process, high-pressure water jets are generally used to directly clean out the scale. However, if the internal structure is hard scale, then only chemical cleaning can be used at this time, because physical methods cannot remove scale, and only chemical drugs can be used to clean scale, rust, slime, and anti-corrosion treatment.
Generally speaking, the cleaning plan of the evaporator is relatively simpler, that is, after the evaporator is stopped, the material solution in it is first emptied, and then the chemicals are put into it for operation. Another way is to check out the deposition section of the fouling body of the equipment according to the operation of the material, and then perform physical cleaning.
The online cleaning solution of the evaporator is also a solution for online cleaning of the pipeline. It is roughly the same as the evaporator material process, and the operation mode is basically the same, so the difference is nothing more than the designed cleaning pipeline or the addition method, which is slightly different according to the material situation.
The chemical cleaning method in the evaporator cleaning scheme can be used in the process of shutdown cleaning or in-line cleaning. In contrast, physical cleaning can only be used during shutdown cleaning. Therefore, in general, the online cleaning method of the evaporator is more suitable for the anti-fouling stage and prevention stage such as delaying the fouling of materials and prolonging the operation cycle of the equipment.
The shutdown cleaning of the evaporator is intuitively divided into two ways, chemical cleaning and physical cleaning. Physical cleaning is more likely to be used. In addition, the evaporator shutdown cleaning scheme also has disadvantages, that is, the material in the evaporator needs to be emptied and then cleaned, which will directly affect the production efficiency of the owner. Therefore, online cleaning is commonly used during operation.
The above content is the evaporator cleaning scheme provided for everyone. Of course, no matter which cleaning scheme is used, the final choice must be made according to the actual situation.