【项目背景与地理位置分析】

本项目位于福建省莆田市城厢区，地处东南沿海，属典型的亚热带海洋性气候，全年温暖湿润，夏季高温多雨，平均气温在28℃以上，湿度常年维持在75%以上，尤其夏季闷热感明显，车间内若不采取有效通风降温措施，极易影响工人作业效率和身体健康。

莆田作为“中国鞋都”之一，鞋业产业链完善，经济发展活跃，拥有众多规模以上制鞋企业。该企业作为当地重点鞋业生产厂家，具备完整的鞋类生产工艺流程，包括裁料、针车、贴合组装、成型、质检、包装等环节，生产线长、工序复杂，对车间环境的舒适度和空气质量有较高要求。

【厂房结构与降温需求】

该企业厂房为多层钢筋混凝土框架结构，层高约5米，墙面大面积采用玻璃窗采光，通风条件一般。本次通风降温工程主要涉及裁料车间、针车流水线车间、贴合组装车间、质检包装车间等区域。这些车间普遍存在以下特点：

人员密集：每个车间工位密集，人员流动性大，体感温度高；

设备发热：针车、贴合等设备运行产生大量热量；

有害气体散发：贴合工序中使用的胶黏剂等材料会释放一定量的挥发性有机物，需及时排出。

因此，如何在保障通风降温的同时，兼顾空气质量和能耗控制，成为本次方案设计的重点。

【瑞峰方案设计与技术亮点】

针对该厂房结构及生产工艺特点，瑞峰环保制冷团队综合考虑以下因素，量身定制了系统化通风降温方案：

地理气候因素：针对莆田高温高湿的气候特点，选用大风量、强送风能力的蒸发式冷风机，确保降温效果；

厂房结构特点：层高较高、空间大，采用“冷风机+长风管+多风口定点送风”系统，将冷风精准送达每个工位，避免冷量浪费；

空间利用：车间地面空间有限，设备采用墙外吊挂式安装，不占用生产面积，安装维护便捷；

空气质量保障：结合生产工艺中胶合工序产生的有害气体，配套安装负压风机，按换气次数科学配置，实现车间内空气快速置换，排出热气与异味。

【物理原理与使用效果】

蒸发式冷风机利用“水蒸发吸热”原理，通过高效湿帘将热空气降温后送入车间，配合长风管系统，冷风可送达50米以上距离，覆盖面广、温差明显。负压风机则通过强制排风，形成负压区，引导新鲜空气从门窗等进风口自然流入，形成“一送一排”的空气对流循环。

系统运行后，车间内温度明显下降，空气清新度大幅提升，工人普遍反映“不再闷热、干活更有劲”。企业主反馈，车间环境改善后，员工出勤率提升，生产效率明显提高，产品合格率也同步上升，整体运营效益显著提升。

【项目延伸意义】

此次虽是鞋厂通风降温工程，但其解决方案同样适用于服装厂、电子厂、包装车间等类似场景。特别是在高大空间、人员密集、设备发热大、有气体排放需求的厂房中，瑞峰公司具备对设备的综合选型能力与系统化方案设计施工能力，能够根据客户实际工况提供定制化服务，助力企业打造舒适、健康、高效的生产环境。

Project Background and Geographic Location Analysis

This project is located in Chengxiang District, Putian City, Fujian Province, along the southeast coast. It belongs to a typical subtropical maritime climate, with warm and humid temperatures throughout the year, high temperatures and heavy rainfall in summer. The average temperature is above 28 ℃, and the humidity remains above 75% throughout the year. Especially in summer, the feeling of stuffiness and heat is obvious. If effective ventilation and cooling measures are not taken in the workshop, it is easy to affect the efficiency and physical health of workers.

As one of the "Shoe Capitals of China", Putian has a complete footwear industry chain, active economic development, and numerous large-scale shoe-making enterprises. As a key local shoe manufacturer, this enterprise has a complete shoe production process, including cutting, sewing, fitting and assembly, molding, quality inspection, packaging and other links. The production line is long and the process is complex, with high requirements for the comfort and air quality of the workshop environment.

Factory Structure and Cooling Requirements

The factory building of the enterprise is a multi story reinforced concrete frame structure with a floor height of about 5 meters. The walls are extensively lit with glass windows, and the ventilation conditions are generally average. This ventilation and cooling project mainly involves areas such as the cutting workshop, needle car assembly line workshop, fitting and assembly workshop, quality inspection and packaging workshop, etc. These workshops generally have the following characteristics:

Personnel density: Each workshop has dense workstations, high personnel mobility, and high perceived temperature;

Equipment heating: Needle sewing, bonding and other equipment generate a large amount of heat during operation;

Harmful gas emission: Adhesive and other materials used in the bonding process will release a certain amount of volatile organic compounds, which need to be discharged in a timely manner.

Therefore, how to balance air quality and energy consumption control while ensuring ventilation and cooling has become the focus of this scheme design.

Ruifeng Solution Design and Technical Highlights

Based on the structural and production process characteristics of the factory building, the Ruifeng Environmental Protection Refrigeration team has comprehensively considered the following factors and tailored a systematic ventilation and cooling plan:

Geographical and climatic factors: In response to the high temperature and humidity climate characteristics of Putian, evaporative air coolers with high air volume and strong air supply capacity are selected to ensure cooling effect;

Structural characteristics of the factory: high floor height and large space, using a "cold air fan+long air duct+multi outlet fixed-point air supply" system to accurately deliver cold air to each workstation, avoiding waste of cooling capacity;

Space utilization: The workshop floor space is limited, and the equipment is installed by hanging outside the wall, which does not occupy production area and is easy to install and maintain;

Air quality assurance: Combined with the harmful gases generated during the bonding process in the production process, a negative pressure fan is installed and scientifically configured according to the air exchange rate to achieve rapid air replacement in the workshop and discharge hot air and odors.

【 Physical Principles and Application Effects 】

The evaporative air cooler utilizes the principle of "water evaporation absorbs heat" to cool the hot air through an efficient wet curtain before sending it into the workshop. Combined with a long air duct system, the cold air can reach a distance of more than 50 meters, with a wide coverage and significant temperature difference. Negative pressure fans create a negative pressure zone through forced exhaust, guiding fresh air to naturally flow in from air intakes such as doors and windows, forming a "one supply, one row" air convection cycle.

After the system was put into operation, the temperature in the workshop significantly decreased, and the air freshness greatly improved. Workers generally reported that they were no longer stuffy and working more vigorously. According to feedback from business owners, after improving the workshop environment, employee attendance rates have increased, production efficiency has significantly improved, product qualification rates have also increased, and overall operational efficiency has significantly improved.

[Project Extension Significance]

Although this is a ventilation and cooling project for a shoe factory, its solution is also applicable to similar scenarios such as clothing factories, electronics factories, packaging workshops, etc. Especially in factories with tall spaces, dense personnel, high equipment heat generation, and gas emission requirements, Ruifeng Company has the ability to comprehensively select equipment and systematically design and construct solutions. It can provide customized services according to customers' actual working conditions, helping enterprises create a comfortable, healthy, and efficient production environment.