Supply and exhaust air systems

SUPPLY AND EXHAUST AIR SYSTEMS WITH HEAT RECOVERY (HR)

In almost every powder coating system and liquid paint system, ventilation technology plays a crucial role. However, many installations still rely solely on exhaust air systems. This often results in excessive negative pressure, contamination of workpieces and unnecessarily high energy consumption. With our supply and exhaust air systems with heat recovery (HR), you gain full control over airflow while significantly reducing energy costs.

Do your upstream or downstream production processes also require conditioned air? Thanks to the flexible design of our ventilation systems, we can develop a customized solution tailored to your entire production environment.

Increasing legal requirements for occupational safety, environmental protection and energy efficiency place growing demands on industrial ventilation systems. Our solutions help you comply with current regulations while improving workplace safety and reducing operating costs.

From engineering and installation to commissioning and maintenance, e. Luterbach AG provides complete ventilation solutions from a single source.

Good to know: Many energy efficiency measures and ventilation system upgrades are eligible for government funding.

WE ARE HAPPY TO ADVISE YOU!

Application examples


 

Pretreatment Systems


During the pretreatment process, water vapour (mist) is generated, resulting in air with a high moisture and energy content. Many installations rely solely on exhaust air systems, meaning that conditioned air is discharged unused while replacement air is drawn into the building. This not only wastes energy but also creates unwanted negative pressure within the production hall.

Solution:
Corrosion-resistant plate heat exchangers or KVS heat recovery systems combined with a supply air unit.

 

Powder coating Systems


High-quality powder coating systems require precisely controlled ambient conditions to ensure stable production processes and consistent coating quality. Air that is too dry can increase reject rates and negatively affect the coating process.

Solution:
High-pressure humidification combined with a supply air unit including cooling.

 

Welding shops


Traditional extraction systems using extraction arms are often insufficient because they are not consistently positioned close to the emission source. As a result, employees may still be exposed to hazardous welding fumes and fine dust.

Solution:
An integrated ventilation concept with source air supply at each workstation and central extraction using high-performance cartridge filters.

 

Liquid Paint Systems


A liquid paint system for drum lids generates very high solvent loads due to its large coated surface area. The production facility is located in a residential area. Although the existing installation was equipped with a thermal oxidizer (TNV), its energy consumption was extremely high.

Solution:
A Regenerative Thermal Oxidizer (RTO) was implemented for the new installation. The RTO operates largely autothermally and requires little or no additional fuel. Compared to the previous solution, energy consumption was reduced by approximately 90%. The existing coating system was also connected to the new RTO, further increasing overall efficiency.

Technical data

Core components
– Fans
– Filtraiton systems
– Heating
– Heat recovery
– Humidification
– Cooling and dehumidification
– Exhaust air treatment (e.g. RTO systems and air scrubbers)

Materials
– Galvanized steel
– Painted steel
– Stainless steel 1.4307 / 1.4404
– Plastics such as PPs

Airflow:
2,000–260,000 m³/h

Operating Temperature: -20 to 300 °C

Filtration systems:
– Coarse dust filter ISO coarse 40% (G3)
– Machine protection filter ISO ePM10 50% (M6)
– Fine filter ISO ePM1 70%
– HEPA filters up to H14
– Air scrubbers

Heating Media
– Electricity
– Hot water
– Direct and indirect gas
– Indirect oil
– Thermal oil

Heat recovery
– Static plate heat exchangers (up to 65% efficiency)
– Rotary heat exchangers (up to 85% efficiency)
– Sorption regenerators (up to 85% efficiency including latent energy/humidity)
– KVS heat recorvery systems (up to 45% efficiency)
– Heat pumps

Humidification:
– High-pressure humidification with revers osmosis water
– Ultrasonic atomization
– Steam humidification

Support-Hotline

On request we offer

24/7 support

for our systems.

 

Kontakt Hotline e. Luterbach AG, zwei Männer stehen am Schreibtisch

e. Luterbach AG

Plant engineering for the painting industry

 

Mülacher 10, CH-6024 Hildisrieden