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Spiral plate heat exchanger cleaning tool selection
Jan 02, 2018

Spiral plate heat exchanger after a period of time, the number of its plate will have left a layer of scale, which we only need regular cleaning on it. The spiral plate heat exchanger cleaning is also very particular about what material with what kind of cleaning work is the corresponding.

 

Pickling is currently the main spiral plate heat exchanger cleaning methods, which include organic acids and inorganic acids, organic acids mainly oxalic acid, formic acid, etc .; and inorganic acids, including hydrochloric acid, nitric acid and so on. Which one to use, have to be based on spiral plate heat exchanger structure and technology, material and scale component analysis.

 

If the spiral plate heat exchanger material is nitinol, it can not choose hydrochloric acid as cleaning fluid, so as to avoid plate corrosion on the plate heat exchanger, shortening the life of the plate heat exchanger. If the circulation spiral plate heat exchanger area is small, and the internal structure is complex, it can choose formic acid as spiral plate heat exchanger cleaning solution, the effect is ideal.

 

In the actual cleaning process, you can also add buffers and surfactants in the formic acid cleaning solution, cleaning better, and can reduce the cleaning fluid on the spiral plate heat exchanger plate corrosion. Because through the spiral plate heat exchanger scale samples of chemical tests showed that formic acid can effectively remove scale; and acid immersion test found that formic acid can effectively remove the attached to the spiral plate heat exchanger plate scale, while it is Spiral plate heat exchanger plate corrosion is also small.

 

Therefore, the choice of spiral plate heat exchanger cleaning tools suggest that you can use formic acid for operation, can effectively remove the spiral plate heat exchanger surface scale and corrosion of the plate is also small, does not affect the spiral plate heat exchange Daily use and performance of the device.

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