Project Overview
This Northeast Dumpling Restaurant is located in urban Dongguan. Its back kitchen is equipped with dumpling steamers, frying stoves and Chinese cookers. Massive steam, cooking fume and radiant heat are generated continuously during peak hours. The original ventilation system lacks sufficient air volume. Damp hot steam from steamers fills the kitchen, resulting in sweltering and humid working conditions for chefs. High temperature and humidity accelerate grease accumulation inside ducts. Besides, steam and fume drift into the dining area, damaging customer experience and bringing risks of failing environmental inspections. Based on kitchen dimension, heat source layout and exhaust negative pressure, the project adopted the Lanchang water-cooled fresh air unit with air volume of 14000 m³/h for ventilation & cooling renovation.
Adopting water cooling technology, the unit supplies cooled fresh air at 14000 cubic meters per hour to dilute steam and fume, balance kitchen negative pressure and remove accumulated damp heat from steaming equipment. Constructed with oil-resistant stainless steel, the unit adapts to high-temperature, humid and greasy kitchen conditions. Multi-layer filters trap grease and moisture, reducing duct contamination and extending service life. During construction, air duct layout was optimized on site with air outlets arranged for steaming, frying and stir-fry zones. Vibration reduction, air sealing, water piping, electrical commissioning and airflow balancing were fully completed.
After commissioning, damp fog inside the kitchen was greatly reduced, room temperature dropped obviously and air circulation improved effectively. Steam and fume intrusion into dining hall was prevented. The unit operates reliably and requires easy maintenance, complying with local catering environmental standards in Dongguan. This case proves that the Lanchang 14000 m³/h water-cooled unit is ideal for large kitchens with heavy steam output such as Northeast-style restaurants, and provides practical reference for ventilation renovation of similar noodle & steaming-frying catering stores.
