Safety Heat Exchangers
FUNKE is a leader in the development and production of quality heat exchangers with a heat transfer area of up to 2 400 m². The range of products comprises shell-and-tube heat exchangers, bolted and brazed plate heat exchangers as well as oil / air cooling units and electrical oil pre-heaters. Thus, as one of the few producers worldwide, FUNKE offers solutions with optimum thermodynamic designs for different industries and virtually all applications.
Always the right plate for your requirements
Safety heat exchangers are designed as three chamber devices with straight internal tubes and fixed (F) or removable (P) tube bundle. In each individual internal tube of the tube bundle a further smaller internal tube is installed. These concentric internal tube pairs form radial gaps which are interconnected by the design of the double tubesheets and thus produce the enclosed safety space. A mixing of the flowing operating media is prevented in this way.
This sealed safety space is filled with a special barrier fluid. It is responsible for the heat transfer in the radial gap and functions as a transmitter in the leak monitoring system. The safety area is sealed off and permanently monitored for pressure changes (pressure monitoring P).