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Megaunity builds a green, efficient, and intelligent air system for the painting workshop of FAW-Volkswagen.

The energy consumption during the painting production process accounts for about 70% of the total energy consumption in automobile production. The three wastes generated during the painting workshop production process account for more than 85% of the automobile production process, with VOCs being the largest emissions. During the spraying process, paint mist, organic solvent vapor, and dust are also formed, which seriously pollutes the environment. To ensure the safety and health of workers in the painting workshop and to ensure that the exhaust emissions meet strict environmental protection standards, the FAW-Volkswagen Chengdu plant has carried out ultra-low emission transformation of the exhaust treatment system in the painting workshop. By upgrading the original exhaust treatment system and equipping a more reasonable and effective process ventilation system, stable and compliant emissions are ensured, while the system operates more energy-efficiently.

Sources and parameters of exhaust gas
Main source: Organic solvent exhaust gas from the spraying and intermediate drying processes
Exhaust gas components: Benzene, toluene, ethyl acetate, etc.
Exhaust gas flow rate: 150,000 m³³/h

Megaunity solution
This project optimizes the overall system design based on the original exhaust treatment system (rotary adsorption + TNV process), integrating the exhaust from the spray booth and intermediate drying furnace into the exhaust treatment system, meeting environmental protection standards while satisfying customer requirements for energy efficiency and equipment quality.
1. The pre-treatment filtration system reduces the entry of particulate matter and other substances into the zeolite rotor, extending the service life of the zeolite rotor.
2. The rotor system design features an automatic concentration ratio adjustment function, allowing for energy-efficient operation of the exhaust treatment system by controlling the desorption airflow based on the intake and exhaust concentrations during single-line and multi-line production. Additionally, the rotor system is equipped with an automatic fire protection system and high-temperature cleaning function to ensure safe operation and rotor adsorption regeneration.
3. The control system can dynamically monitor and automatically control the overall system, generating reports automatically; it matches airflow automatically based on the number of production lines online to achieve energy-efficient operation.
4. The TNV system is designed with a multi-stage waste heat recovery process, including: exhaust preheating, rotor desorption heat exchange, and hot water heat exchange functions. Through multi-stage recovery technology from high temperature to low temperature, energy recovery is maximized.
5. The system has independent design optimization capabilities in process ventilation, and after system modification, it quickly restores production needs through rebalancing airflow.
6. The emergency discharge pipeline (bypass pipeline) is equipped with Megaunity's self-developed zero-leakage valve, solving the leakage problem of the positive pressure air supply system at the emergency pipeline, ensuring the stability and compliance of the system.
7. Megaunity holds multiple patents for duct valves related to painting workshops, ensuring product appearance and other added values while guaranteeing process quality. The duct's sealing and aesthetics meet the high requirements of customers for engineering quality.

Project highlights

Effective and reasonable system design is the foundation for controlling air quality in the workshop and ensuring a good working environment. Megaunity has been deeply involved in the industrial production environment air system field for nearly thirty years, helping customers achieve reduced investment, saved operating costs, and energy-saving carbon reduction through exhaust source capture, refined system design, independent innovation of key components, and process technology optimization, providing customers with safe and efficient full-system solutions, continuously promoting green and sustainable development in the automotive painting field.

Industrial Air Handling System Solutions Provider

Tel：400-860-5288

E-mail： marketing@megaunity.com

Address:

No.300, Dongxin Road, Wuzhong District, Suzhou, Jiangsu, China
No.8, Shuzi 3rd Road, DD Port, Dalian Jinpu New Area, Liaoning, China

苏公网安备32050602012408号

Powerby:300.cn dalian City

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