Q: When replacing heat exchangers on site, why is the plate-frame fin design easier to install than shell-and-tube or plate-type units in space-constrained retrofit projects? A: Its combination of a plate-frame skeleton and fin channels provides a more compact footprint for the same heat transfer capacity, and the removable frame plates allow the fin pack to be pulled out for cleaning, making it suitable for narrow spaces and workstations requiring frequent maintenance.
Shell-and-tube heat exchangers handle high pressure and high temperature well, but their heat transfer area per unit volume is limited, and servicing requires removing heads and pulling tube bundles, resulting in long downtime. The BRF-30 uses plate frames to clamp the fin pack, significantly increasing heat transfer surface density; after loosening the frame plates, the fins and gaskets can be inspected one by one, shortening the maintenance path. Its design pressure is 1.6 MPa and design temperature is 200°C, making it suitable for retrofit replacement in medium-low pressure and medium-temperature conditions.
Conventional plate heat exchangers rely on narrow channels between plates for heat transfer, requiring high medium cleanliness, and particulates can easily cause blockage. The fin channel spacing of the BRF-30 can be selected according to the medium, giving it better adaptability to process water and thermal oil containing a small amount of impurities. A single unit covers a heat transfer area of 3–30 m², with connections from DN50 to DN150, making it easy to connect to existing piping.
Check medium corrosiveness to select fin material (carbon steel, stainless steel 304/316L); calculate the required area based on heat load and temperature difference; confirm whether the installation space meets the frame plate pull-out distance; the matching flange standard and pressure rating must be consistent with the site. The nameplate should indicate design pressure, temperature, heat transfer area, and medium flow direction for routine inspection records.
