Plate heat exchanger problems
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After the 3 square meters, 0.6MPa, sanitary grade stainless steel plate heat exchanger is produced, what are the key points for acceptance, and what are the methods and means.
Since it is sanitary grade, it must have requirements for surface cleanliness! The key points for acceptance are pressure testing and non-destructive testing, etc.! I don’t know if this is correct or not, please give advice~ This post was last edited by jia717 on 2009-3-8 22:14 ]
Since it is sanitary grade, easy cleaning must be considered during design, and there must be no dead ends. Gaskets, supports and other external structures must also be considered in this way.
The key points for this acceptance are the appearance quality and the material. Appearance quality is to check whether the plates are even and uneven. If the clamping plate is also made of stainless steel, check whether there are scratches on it. Since the requirements are sanitary, the material requirements must be strict, so in addition to the clamping plate being made of stainless steel, the pipes and flanges must also be made of stainless steel. Another sealing gasket must be food grade. Generally, such gaskets are white, which is easy to judge. There are also ordinary gaskets that are desulfurized and used as food gaskets. This one is black, and it is basically impossible to judge (this is the conscience of the manufacturer).