MX Series. The compact and versatile heatexchanger system for food and other industries
In this catalogue, we present the next generation tubular heat exchanger, represented by our MX heat exchanger system. The MX has been designed to offer the most versatile and compact modular heat exchanger system in the market.
Versatile.
Where competitors use different geometries for different application, such as mono-tubes, triple-tubes, multi-tubes, HRS has engineered the MX in a way that it can serve all major applications in industrial and food applications.
Compact.
Over the years, having managed many construction projects, HRS has identified the need to provide customers with heat exchanger systems that can fit into limited spaces. Many heat transfer applications require multiple units mounted in series. The more units needed, the bigger the installation becomes.
We have put our minds to work and have come up with a solution that uses the best of our engineering skills. The result is a tubular system capable of fitting more square meters of heat transfer area in less space than any equivalent heat transfer solution available in the market. Easy maintenance is taken into account, using the MX you will discover that maintenance is a lot less time consuming than with traditional heat exchanger modules. Inspections can be carried out more rapidly and less time will be needed for gasket changes.
Continue reading and explore for yourself the advantages of the MX heat exchanger system.
Versatility: 4 in 1!
The MX design makes it possible to work with 4 different applications in the same heatexchanger system:
Hygienic processing on tube side - Industrial or food product on tube side
- Service media on shell side
- For food applications: all wetted parts are made from AISI 316L stainless steel and surface roughness levels are below 0,8 µm.
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Hygienic processing on shell side - Industrial or food product on shell side
- Service media on tube side
- The food product flows through a single channel, same as in double tube or triple tube heat exchangers. Heating through a multi tube pattern makes the operation more efficient.
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Hygienic processing on shell and tube side - Product to product heat recovery
- Product to product heat recovery reduces the size of pasteurizing systems, reduces thermal treatment time and increases product quality.
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Industrial processing with monotube geometry - The three previous examples can be applied to a tube in tube geometry. The multi tube bundle is replaced by a single mono tube bundle.
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New baffle design.
New types of baffles have been developed. They are 120º segments spaced at appropriate intervals; each baffle rotated 120° compared to the previous one. This forces the fluid to change direction constantly and increases mixing, better heat transfer being the result.
Maintenance.
The MX heatexchanger is designed for easy maintenance. By tightening just one bolt the header is sealed. Just two bolts are needed per heat exchanger (inlet and outlet). When compared to working with bolted flanges the result is fewer operations for maintenance, inspection and servicing.
Pasteurization processing.
HRS can supply complete processing plants based on the MX heatexchanger system.
The typical HRS pasteurization plant consists of a heatexchanger module and separate energy module. The heat exchanger takes the product to its pasteurization temperatures and then cools to filling temperature. A regeneration loop is used for energy saving and the energy module supplies any additional hot and cold service fluids to the heat exchanger. The illustrations below show an example of a 14000 l/hr fruit juice pasteurizer with direct product to product heat recovery.
Corrugated inner tubes.
For many years HRS has used corrugated tubes inside its heat exchangers. The corrugations disrupt the boundary layer near the tube wall and ensure higher levels of turbulence. The combination leads to higher heat transfer when compared with conventional smooth tube heat exchangers. Two types of corrugation are frequently used, hard and dimple, the specific type used depending on the application.
- Higher heat transfer means less surface area needed: shorter heat exchangers, less thermal treatment time.
- Smaller heat exchangers mean less product volume contained in the heat exchanger.
- Higher turbulence can minimise fouling on the tube walls.
Materials
The MX heat exchanger is made entirely from austenitic stainless steel (AISI 300 series). AISI 316L is used for all tube side wetted surfaces and AISI 304 for all shell side materials. If food products are treated on the shell side then AISI 316L is used throughout. The O-ring material used will depend on the fluids in contact with the elastomers and the design temperature. All materials applied (both stainless steels and O ring materials) are FDA compliant.
Other alloys can be made available on request.
Standard design conditions
Design pressures: up to 17 barg
Design temperature: 150 ºC
Flow rates up to 50 m³/hr can be handled by the individual MX modules, higher flows being handled by using modules in a parallel flow regime
Applications
The MX heatexchanger can be used for a wide variety of applications and products, its versatility making it suitable for both high and low viscosity fluids.
Food industry:
Other industries:
- Steam to water
- Heat recovery
- Waste water
- Solvents
- Paints
- Lotions
- Thermal oils