Tube Bundle Heat Exchanger

A tube bundle heat exchanger makes it possible to exchange heat between two media when there is a temperature difference between them. The two media are guided past each other, separated by the tube wall. In a tube bundle heat exchanger, one medium flows through the tubes, while the other flows through the shell space.

In the shell space, so-called baffles are installed, which direct the medium flowing through the shell space crosswise to the tube bundle, and also prevent the inner tubes from vibrating. In tube bundle heat exchangers, the tube space can be executed as one-way or multi-way. The speed and pressure loss of the medium flowing through the tubes are crucial factors here.

A tube bundle heat exchanger can be used both as a cooler and as a heater for liquid or gaseous media.

  • Outer shell diameter from 88.9 to 508 mm
  • Length up to 6,000 mm
  • Removable chambers
  • Fixed tube bundle
  • Straight bundle tubes, without profiling
  • Heat-induced length expansion of the tubes can be absorbed by a compensator installed in the shell
  • Gas coolers
  • Condensers
  • Boilers for brewing applications
  • Stainless steel materials
  • Steel materials
  • Inner tubes in stainless steel or brass
  • Outer shell diameter from 114.3 to 508 mm
  • Length up to 3,000 mm
  • Removable chamber
  • Removable tube bundle (advantageous for cleaning)
  • U-shaped bundle tubes, without profiling
  • Heat-induced length expansion is absorbed by the bundle tubes
  • Heaters using steam or hot water
  • Condensers
  • Stainless steel materials
  • Steel materials
  • Inner tubes in stainless steel
  • Outer shell diameter from 88.9 to 508 mm
  • Length up to 6,000 mm
  • Removable chambers
  • Removable tube bundle (advantageous for cleaning)
  • Straight bundle tubes, without profiling
  • Heat-induced length expansion of the tubes is compensated by the movable tube plate
  • Quenching baths
  • Industrial washing machines
  • Oil coolers
  • Stainless steel materials
  • Steel materials
  • Inner tubes in stainless steel or brass

In the „Downloads“ section, you will find the data sheets for AAN standard heat exchangers. Custom-made special apparatus tailored to specific applications are always possible.

Liquid Cooler as Finned Tube Heat Exchanger

In a liquid cooler, the warm liquid medium is cooled in the tubes using colder ambient air. Due to the lower heat transfer on the air side, the surface of the smooth tube is enlarged by fins. Depending on the flow rate and pressure loss, a one-way or multi-way design is chosen. Heat dissipation is achieved using quiet axial fans.

  • Various designs are possible
  • Due to its design, the LKI type is also suitable for contaminated media
  • Cooling of water and water/glycol mixtures
  • Cooling of quenching media (oil, polymer); Type LKI
  • Inner tubes in copper or stainless steel
  • Fins in aluminum
  • Other parts in galvanized steel or stainless steel

In the „Downloads“ section, you will find the data sheets for AAN standard heat exchangers. Custom-made special apparatus tailored to specific applications are always possible.

Customized Heat Exchangers

In addition to standard heat exchangers, we design and manufacture apparatus for customer-specific applications.

Applications:

  • Heat exchangers for boiling in brewing kettles (internal cookers) – Brewing industry
  • Heat exchangers for cooling the protective gas atmosphere in annealing furnaces – Industrial furnace construction
  • Smooth and finned tube heat exchangers for installation in air and protective gas pipelines

Circulation Units

For direct installation in hardening vessels, we produce circulation units, as well as cooling and circulation units for water and polymer quenching media. For special applications in salt bath hardening, we supply circulation units as well as aircooled cooling and circulation units for martensitic and bainitic baths.