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Flake Ice Machine evaporator application

Oct. 22, 2019

  As an Industrial Flake Ice Machine Supplier, share it with you. The flake ice machine evaporator is a very important component in the four major parts of refrigeration, and it is also a partition wall heat exchange device. The low-temperature condensing "liquid" body passes through the evaporator to exchange heat with the outside air, and "gas" heats up to achieve the cooling effect. The evaporator is divided into three types according to the operating pressure: atmospheric pressure, pressure, and decompression.

  Evaporation is a unit operation in which a solution containing a non-volatile solute is heated to a boiling state, a part of the solvent is vaporized and removed, thereby increasing the concentration of the solute in the solvent. There are several applications for the application of evaporation in industrial production:

  1. Concentrate the dilute solution to directly prepare the product or reprocess the concentrated solution to obtain a solid product, such as the concentration of electrolytic caustic soda, concentration of aqueous sugar solution, concentration of various juices, etc.

  2. At the same time, the solution is concentrated and the solvent is recovered, for example, concentrated benzene extraction of the organophosphorus pesticide benzene solution, evaporation of the alcohol leaching solution in the production of traditional Chinese medicine, etc.

  3. In order to obtain a pure solvent, such as seawater desalination.

  In short, in the chemical industry, food industry, pharmaceutical, and other industries, evaporation operations are widely used.

Flake Ice Machine

8 Ton Flake Ice Machine

  8 Ton Flake Ice Machine evaporator maintenance work:

  1. Frequently perform leak detection of the flake ice machine evaporator. Leakage is a common failure phenomenon of evaporators and should be carefully checked for leaks during use.

  When the ammonia evaporator leaks, there is a pungent odor, and there is no frost at the leak point. Phenolphthalein test paper can be used for the leak, because ammonia is alkaline, and the phenolphthalein test paper turns red. When you look at it, it is usually the leak point where it is not frosted somewhere in the evaporator. You can also use soapy water to find the leak at the leak.

  Fluorescent lamps and halogen leak detectors can be used for leak detection of the flake ice machine evaporator, and soapy water can also be used for leak detection. When inspecting, first check the oily trace on the evaporation tube. Because the freon and the oil can be mutually soluble, when the Freon leaks, the oil will also seep out from the leak point. Therefore, where there is an oil trace, it will leak. When using a halogen lamp for leak detection, if there is a Freon leak somewhere, the flame of the halogen lamp changes from blue to light green, light green, grass green, purple-green, purple, etc. The amount of Freon leakage can be judged. If the flame is dark green or purple, the phosgene in the flame is toxic and cannot be checked by this method for a long time. In this case, the leak point can be checked with soapy water. For trace leaks, a halogen leak detector should be used for leak detection.

  2. Always check the frosting condition of the flake ice machine evaporator. When the frost layer is too thick, it should be defrosted in time. When the frost is abnormal, it may be caused by a blockage, and the cause should be found and eliminated.

  3. When the evaporator is slowed down, the refrigerant is sucked into the accumulator or the condenser, so that the pressure of the evaporator is maintained at about 0.05 MPa (gauge pressure). If it is an evaporator in a saltwater tank, it needs to be washed with tap water. After flushing, fill the pool with tap water. Our company also has 3 T Sea water Flake Ice Machine on sale, welcome to come to consult.