The modular air handling unit allows for flexible design of each functional section. It features a large air handling capacity, and the outlet air temperature can meet any design requirement. The various functional sections include: mixing section, primary-efficiency filter section, medium-efficiency filter section, pre-cooling section, pre-heating section, water-washing section, cooling section, heating section, fan section, air-distribution section, high-efficiency filter section, humidification section, and supply-air section. These sections can be freely combined and configured to suit customer needs conveniently.

Our company has developed the 9th-generation ZK series high-volume, cold-bridge-free HVAC unit. The unit’s positive and negative pressure air leakage rate is less than 0.5%, and it features no cold bridges.

 

I. The optimal achievable range for key indicators:

1. Airflow: Depending on user requirements, the typical airflow ranges from 1,000 m³/h to 160,000 m³/h; the maximum airflow can reach 1,500,000 m³/h.

2. Wind pressure: 500 Pa ~ 4000 Pa;

3. Leakage rate: <2%;

4. Adaptable to filtration methods for various industries. Purification level: Class 10 or higher;

5. Under the premise of standardized operation, the service life is over 20 years;

6. Noise: Below the national standard;

7. Fully functional: 18 functional modules can be combined arbitrarily, meeting the diverse operating conditions of all industrial enterprises.

8. The spacing between the cooling coil and heating coil fins can be adjusted arbitrarily from 2.5 mm to 5.0 mm.

9. The unit can achieve constant temperature and humidity control (equipped with an automatic control system); its control accuracy is as follows: temperature ±0.1℃; humidity ±2%.

10. Equipped with a high-efficiency rotary energy recovery device, its heat recovery efficiency reaches over 70%.

 

II. Main Features:

The design is rational, aesthetically pleasing and elegant, easy to maintain, with straight lines, compact size, high strength, and no thermal bridges. The wall panels feature a modular design, allowing each panel to be freely assembled and disassembled. High-pressure foam insulation in the wall panels ensures both excellent thermal performance and structural strength.

Insulated frame (patented technology)

Double-layer cold bridge-resistant frame with excellent thermal insulation performance and high strength; high-pressure foam filling within the frame cavity fundamentally eliminates cold bridges around the frame.

High-efficiency heat exchanger

All of our company’s heat exchangers are manufactured by OAK Equipment in the U.S. Our unique equipment and distinctive processes give rise to uniquely superior products!

The plate-type design and secondary flanging of this heat exchanger are proprietary technologies developed by 0AK Company. On the one hand, they increase the effective heat-transfer surface area; on the other hand, they ensure optimal contact between the copper tubes and aluminum plates.

Composite Filtration: (Patented Technology)

The combination of a primary-efficiency plate-type filter and a medium-efficiency bag-type filter is referred to as a composite filter. The plate-type filter is meticulously crafted using imported high-polyester nylon fibers combined with a unique manufacturing process. This composite filter achieves a filtration efficiency of over 75%, second only to high-efficiency filters. First, the plate-type filter plays a crucial role in initial filtration, effectively reducing the workload on the medium-efficiency filter. As a result, the service life of the medium-efficiency filter can be extended by more than five times. Second, this plate-type filter employs a magnetic “self-suction” fastening mechanism, making it simple and convenient to install and remove. Third, the plate-type filter is easy to clean—simply rinse it with a high-pressure water jet or gently tap it with a stick. Fourth, it has a broad range of applications and can withstand the erosion of various harmful substances. Fifth, it boasts excellent reusability, being washable more than 30 times.

Plate-type self-cleaning filter: (patented technology)

The automatic plate-type air filtration unit consists of a plate-type dust filter, a dust collector, a dust compactor, a dust-collection fan, and a PLC-based electrical control system. This unit can be directly used as a return-air filter in air-conditioning systems, requiring no manual operation and running fully automatically. It significantly reduces labor costs and alleviates the workload of operators. The unit is widely applied in air-conditioning systems used in various process stages, including leaf-stripping and re-drying lines, tobacco fiber production lines, cigarette-making and packaging workshops, and pneumatic tobacco conveying systems in the tobacco processing industry. It filters and collects dust from air-conditioning systems, thereby achieving the purpose of air purification.

Cartridge filtration

This filter is widely used in tobacco industry’s cigarette-making lines and cigarette-packaging workshops. The Donaldson pulse-cleaning cartridge filter features outstanding filtration performance. In particular, by adding an ultra-fine layer of polytetrafluoroethylene fibers onto the surface of conventional filter media, the filtration efficiency can be increased by a factor of ten, achieving a dust removal efficiency of up to 99.99% for particles ≥0.5 μm. Moreover, during normal pulse cleaning, the filter’s resistance remains stable, thus also delivering energy-saving benefits.

Rotary Total Heat Recovery Unit:

The surface of the rotary heat exchanger is honeycomb-shaped and coated with an adsorbent material that acts as a desiccant. The rotor is positioned between two air-conditioning units, dividing it into two distinct sections. Exhaust air from the conditioned room is discharged from one side, while outdoor air enters from the opposite side in the opposite direction. To maximize the heat exchange area, the rotor rotates slowly—at a rate of 10 to 12 revolutions per minute. Half of the rotor absorbs thermal energy from the warmer air on one side; as it rotates to the other side, it releases this stored heat, facilitating energy transfer. Meanwhile, the desiccant adhering to the rotor's surface condenses moisture from the high-humidity air and then absorbs it. As the rotor continues to rotate and reaches the other side, it releases this moisture into the lower-humidity airstream, thereby transferring latent heat in the process.

The rotary total heat recovery unit boasts a heat recovery efficiency of over 70%.