温州某大型物流中转站永磁负压风机通风降温工程

【项目背景】

本项目位于浙江省温州市。温州地处东南沿海，属亚热带季风气候，夏季高温潮湿，闷热天气持续时间长。对于现代化物流中转站而言，其作为货物集散与流转的核心枢纽，作业强度高、人车流动频繁，良好的作业环境是保障分拣、装卸效率的关键。该站租用了一处大平层厂房作为中转场地，建筑结构高大通透，空间整体性强。由于物流作业密集，设备散热与人体散热叠加，导致内部空气流通不畅，闷热感明显，亟需通过有效的通风手段改善作业环境。

【瑞峰方案设计】

瑞峰环保制冷的技术团队在方案设计阶段，充分结合了多重关键因素进行综合研判。项目地处温州，夏季高温湿热，但中转站内周转物品多为带包装货物，对温度控制无特殊要求。出于对投资与运行成本的严格控制，业主明确提出无需制冷降温，核心目标是为站内分拣、打包等一线工作人员解决通风不良、闷热积聚的问题。此外，建筑结构高大通透，传统局部通风设备难以实现全面覆盖，必须选用具备大风量、低能耗特点的整体通风方案。

基于以上分析，瑞峰公司为其量身定制了永磁负压风机通风布局设计。该方案充分利用负压通风原理：在厂房一侧外墙安装永磁负压风机，系统启动后，风机向室外高速排出空气，使室内形成负压区。在气压差的作用下，室外新鲜空气通过门窗或进风口自然被吸入室内，形成“强制排风+自然补风”的持续空气流动。这种设计布局相较于蒸发式冷气机或中央空调等降温设备，不仅大幅降低了设备初投资与后期运行电费，同时实现了整场通风无死角，有效解决了高大空间普遍存在的“闷罐子”问题。

【技术优势与实施效果】

本项目中采用的永磁负压风机，具备显著的节能与耐用特性。其核心电机为永磁同步电机，能效等级高，相比传统电机节电效果明显；风机叶轮及外壳采用铝合金材质，防腐防锈，适用于物流仓储等复杂环境；支架部分选用玻璃钢材质，具备良好的减振性能，确保设备在大风量运行状态下仍保持稳固低噪。系统搭配变频智能控制系统，可根据室内外温差、人员作业密度等因素灵活调节风速风量，实现按需通风。

在物理原理层面，负压风机并非向室内“吹风”，而是通过强力排风引导气流方向。当风机持续排风时，室内气压低于室外，形成负压梯度，新鲜空气便从建筑另一侧自然补充，使空气单向流动、快速置换。该中转站启用系统后，室内热气、浊气被高效排出，空气流速显著提升，作业区域温度梯度减小，体感温度明显下降，员工普遍反映“风感自然、不闷不燥”，作业舒适度与积极性均得到有效提升。

【项目延伸与能力体现】

此次大型物流中转站项目的成功实施，不仅印证了永磁负压风机在高大空间通风改造中的适用性与经济性，也充分展示了瑞峰公司在相似场景中的方案复制能力。类似的应用场景广泛适用于仓储中心、分拨车间、工业厂房、体育场馆、大型超市等大面积、高空间场所，尤其是对温度控制无硬性要求、但对空气流通与人员舒适度有较高需求的场所，均可采用本方案实现高效、经济的通风改善。

瑞峰环保制冷始终致力于为客户提供专业的通风降温工程服务。本案例进一步证明，我们具备针对特殊空间结构、特殊行业需求的综合选型与定制化方案设计能力，能够精准匹配环境特点与客户预算，实现功能与成本的最优平衡。

Ventilation and cooling project of permanent magnet negative pressure fan for a large logistics transfer station in Wenzhou

[Project Background]

This project is located in Wenzhou City, Zhejiang Province. Wenzhou is located on the southeast coast and has a subtropical monsoon climate. The summer is hot and humid, and the hot and humid weather lasts for a long time. For modern logistics transfer stations, as the core hub for cargo distribution and circulation, they have high operational intensity and frequent flow of people and vehicles. A good working environment is the key to ensuring sorting and loading and unloading efficiency. The station rented a large flat level factory building as a transit site, with a tall and transparent building structure and strong spatial integrity. Due to the intensive logistics operations, equipment heat dissipation and human body heat dissipation overlap, resulting in poor internal air circulation and obvious stuffiness. Effective ventilation measures are urgently needed to improve the working environment.

Ruifeng Plan Design

The technical team of Ruifeng Environmental Protection Refrigeration fully integrated multiple key factors for comprehensive analysis and judgment during the scheme design stage. The project is located in Wenzhou, where the summer is hot and humid. However, most of the turnover items in the transit station are packaged goods, and there are no special requirements for temperature control. Due to strict control over investment and operating costs, the owner has explicitly stated that there is no need for refrigeration and cooling. The core goal is to solve the problems of poor ventilation and stuffiness accumulation for frontline workers such as sorting and packaging in the station. In addition, the building structure is tall and transparent, and traditional local ventilation equipment is difficult to achieve comprehensive coverage. Therefore, a comprehensive ventilation scheme with high air volume and low energy consumption must be selected.

Based on the above analysis, Ruifeng Company has tailored a permanent magnet negative pressure fan ventilation layout design for it. This scheme fully utilizes the principle of negative pressure ventilation: a permanent magnet negative pressure fan is installed on one side of the exterior wall of the factory building. After the system is started, the fan discharges air at high speed to the outside, creating a negative pressure zone indoors. Under the action of air pressure difference, fresh outdoor air is naturally drawn into the room through doors, windows or air inlets, forming a continuous air flow of "forced exhaust+natural replenishment". Compared to cooling equipment such as evaporative air conditioners or central air conditioners, this design layout not only significantly reduces the initial investment and later operating electricity costs of the equipment, but also achieves seamless ventilation throughout the entire area, effectively solving the common problem of "stuffiness" in tall spaces.

Technical advantages and implementation effects

The permanent magnet negative pressure fan used in this project has significant energy-saving and durable characteristics. The core motor is a permanent magnet synchronous motor with high energy efficiency rating, which has a significant energy-saving effect compared to traditional motors; The fan impeller and casing are made of aluminum alloy material, which is corrosion-resistant and rust proof, suitable for complex environments such as logistics and warehousing; The bracket is made of fiberglass material, which has good vibration reduction performance, ensuring that the equipment remains stable and low-noise even under high air flow operation. The system is equipped with a variable frequency intelligent control system, which can flexibly adjust the wind speed and volume according to factors such as indoor and outdoor temperature difference and personnel operation density, achieving on-demand ventilation.

At the level of physical principles, negative pressure fans do not blow air indoors, but guide the direction of airflow through strong exhaust. When the fan continues to exhaust air, the indoor air pressure is lower than the outdoor air pressure, forming a negative pressure gradient. Fresh air is naturally replenished from the other side of the building, causing one-way flow and rapid replacement of air. After the system was put into use at the transfer station, indoor hot and humid air was efficiently discharged, the air flow rate was significantly increased, the temperature gradient in the work area was reduced, and the perceived temperature decreased significantly. Employees generally reported that the wind felt natural and not stuffy or dry, and the comfort and enthusiasm of the work were effectively improved.

Project Extension and Capability Demonstration

The successful implementation of this large-scale logistics transfer station project not only confirms the applicability and economy of permanent magnet negative pressure fans in the ventilation renovation of high-rise spaces, but also fully demonstrates Ruifeng Company's ability to replicate solutions in similar scenarios. Similar application scenarios are widely applicable to large and high space places such as warehouse centers, distribution workshops, industrial plants, sports venues, and large supermarkets, especially in places where temperature control is not mandatory but there is a high demand for air circulation and personnel comfort. This solution can be used to achieve efficient and economical ventilation improvement.

Ruifeng Environmental Protection Refrigeration is always committed to providing customers with professional ventilation and cooling engineering services. This case further proves that we have the ability to comprehensively select and customize solutions for special spatial structures and industry needs, accurately match environmental characteristics and customer budgets, and achieve the optimal balance between functionality and cost.