Production Procedure
In 2008, Güntner introduced its innovative microox® technology, which has since become established on the market as an efficient technology for stationary refrigeration engineering. Before this, output in relation to footprint had been too low with the conventional micro-channel heat exchangers that were available. Because of their limited depth, micro-channel heat exchangers were not suitable for use in stationary refrigeration engineering.
This challenge has now been overcome with microox® heat exchangers. microox® heat exchangers are produced on a specially built production line in the facilities in Tata, Ungarn.
microox® heat exchangers are produced using a completely different process and almost match the ideal design of a finned heat exchanger: lots of small pipes with small diameters However, instead of small pipes, extruded aluminium profiles with lots of very small channels with a diameter of about 1 mm are used for micro-channel heat exchangers.
These profiles cannot be widened and are also not inserted into punched fin packets. Instead, aluminium strips are laid between two profiles positioned very close to each other (< 1 cm) so that the alternating placing of aluminium strips and profiles produces a heat exchanger packet. This packet is then completely brazed in a brazing furnace.
The close spacing and the small channel diameter produces a heat exchanger with very high fin efficiency and a very low refrigerant volume. Further benefits of this technology are the avoidance of material pairs (no galvanic corrosion), the low weight (no copper) and the compact structure (typical depth of a heat exchanger = 20 mm). microox® heat exchangers also achieve a very high output per square foot of heat exchanger surface and in relation to the use of material.
A benefit for the environment: microox® heat exchangers made from aluminium can be recycled.
Video - microox production
Related Links
- References You'll find the first references for microox® systems here. >>
