Tubular radiatorAlso known as tube-in-tubeHeaterIt features a cylindrical shell as the support structure, supplemented by parts such as heat transfer control, tube sheet, baffle plates, and tube boxes, thereby forming a complete tube-and-shell heat exchanger, also known as a tube bundle heat exchanger. This is an intermediate wall heat exchanger that uses the wall surfaces enclosed within the shell as the heat transfer surface. A heat exchanger is a device for energy transfer.

A structural method for shell and tube radiators, including fixed-plate radiators (generally categorized as: fixed tube plate radiators, floating head radiators, U-tube radiators, and packed gland radiators).

Its operating principle is: tube-in-tubeCoolerThe heat medium enters through the intake port on the cylinder, sequentially passes through various baffle channels, and曲折ly flows to the outlet port. The cooling medium, however, utilizes a two-pass flow system, where it enters half of the cooling tubes through the water distribution cover, and then flows back through the return water cover into the other half of the cooling tubes, reaching the other side of the water distribution cover and the outlet pipe. During the two-pass flow process, the cold medium absorbs the excess heat released by the heat medium and exhausts it through the outlet, maintaining the operating medium at an additional operating temperature.