What are the replacement steps of plate heat exchanger seals?

Through this period of understanding, I believe you are no stranger to plate heat exchangers, but these contents are not enough for customers who want to further understand the relevant knowledge of this product. Today, Xiaobian will share with you the knowledge about the replacement of plate heat exchanger seals, hoping to attract your attention and let you have a deep understanding of plate heat exchanger. In this way, when purchasing and using plate heat exchangers, we can also know well and take it easy. We hope to inspire and help you.

1. Inspection and detection of reuse performance. If corrosion is suspected, check the wall thickness of heat exchanger and pipeline.

2. Remove the aged seals from the plate heat exchanger. According to different dirt, acid alkali cleaning tank is used for chemical cleaning, and the surface of cleaned parts will not be corroded by chemical media (such as gasoline).

3. Plate heat exchanger after chemical cleaning. Remove the chemical medium remaining on the surface of plate heat exchanger with high-pressure blowing device

4. Each heat exchanger plate shall be coated with fluorescent testing agent. Under the irradiation of ultraviolet light, check whether there are small cracks and corrosion holes, and clean them again. In addition, check the sealing groove and repair it if necessary.

5. For the adhesive type sealing gasket, the residual substances will be removed, and the reconstituted heat exchanger sheet group will be re bonded with the mixed adhesive. The reconstituted heat exchanger sheet group will be clamped in the special fixture to solidify the adhesive; Heat preservation in the holding furnace to achieve the bonding effect. For non adhesive gaskets, different devices are used to fix the gaskets in the heat sink.

6. Inspect the bonding position and bonding quality of each plate heat sink, classify according to the installation sequence, and then carefully assemble the plate heat sink group.