The multi-functional training hall of the fire brigade located in OuHai District, Wenzhou City, is situated in a typical subtropical monsoon climate zone. In summer, it experiences high temperatures and humidity, with an average temperature ranging from 28-35℃ and humidity often maintaining above 75%. Winters are mild and humid, while spring and autumn offer pleasant weather but occasional warming spells. Such climatic conditions impose high demands on the comfort and safety of the indoor training environment.

This training hall serves as the core venue for firefighters' daily high-intensity training. Training programs encompass physical fitness enhancement (such as weight-bearing climbing and obstacle crossing), rescue skills drills (including demolition and high-altitude rope operations), simulated fire suppression, and emergency collaborative operations. In pursuit of the principle of "sweating more in training to reduce bloodshed in combat", firefighters are required to maintain intensive training even during the scorching summer. To this end, the detachment leaders have specifically planned to relocate certain projects with high ventilation and cooling requirements - such as equipment training, tactical simulation, and firefighting equipment operation - indoors. This not only avoids the impact of extreme weather but also ensures the continuity of training and the safety of personnel.

In addition, the center also serves as a multifunctional cultural and sports facility, equipped with basketball hoops, physical training areas, and multi-purpose activity spaces. These facilities can be used for gatherings, cultural performances, and daily leisure activities, fully demonstrating the flexibility and practicality of space utilization.

The venue building is a rectangular frame structure, approximately 30 meters long and 20 meters wide, with a ceiling height exceeding 12 meters. It is primarily constructed from reinforced concrete and features large glass windows to enhance natural lighting. The roof is made of color steel tiles with a thermal insulation layer. Such structures tend to accumulate hot air in summer, and the radiant heat from the glass window area is pronounced, making it difficult for traditional ventilation equipment to achieve uniform cooling.

The Ruifeng Environmental Protection Refrigeration Technology Team comprehensively considered factors such as the climate characteristics of the OuHai region, the characteristics of building structures, the diversity of usage functions, and the convenience of system maintenance in the later stage. After field surveys and simulation analysis, they ultimately designed a collaborative solution of "6 sets of 25-type evaporative cooling energy-saving air conditioners + 2 sets of industrial-grade ceiling fans":

Evaporative cooling energy-saving air conditioners utilize the principle of water evaporation to absorb heat, effectively reducing the temperature of indoor air. Their energy consumption is only one-third of that of traditional air conditioners, making them particularly suitable for large spaces with intermittent use scenarios;

The industrial ceiling fan, with a diameter of 7.3 meters, promotes the mixing of air between the upper and lower layers by slowly stirring the indoor air, eliminating stuffy and dead zones, and enhancing the perceived comfort level.

After the system was put into use, the temperature and humidity within the hall were intelligently regulated. In summer, the indoor temperature remains stable at 26-28℃ with moderate humidity, ensuring that officers and soldiers can breathe smoothly and experience reduced physical exertion during training. The wind speed in key training areas is gentle, without any discomfort from direct drafts. This not only significantly enhances training efficiency and personnel focus, but also reduces the risk of sports injuries caused by heat fatigue, earning unanimous praise from the detachment's officers and soldiers.

This project serves as a model collaboration between Ruifeng Environmental Protection and Refrigeration and the fire protection system. Its successful implementation showcases our professional expertise in the field of environmental control for large public buildings and high-intensity usage spaces. This case also provides a reliable reference for similar scenarios, such as armed police training bases, emergency management system units, sports venues, school auditoriums, factory workshops, and warehousing centers, aiding more entities in achieving the dual goals of energy conservation and environmental comfort.

Ruifeng Environmental Refrigeration will continue to adhere to the principle of "professional design, efficient construction, and enduring service", providing customized ventilation and cooling solutions for customers in various fields, and jointly creating a cool, healthy, and sustainable working and training environment.