【项目背景与挑战】

在素有“中国鞋都”之称的福建晋江，鞋服产业作为其核心经济支柱，孕育了无数规模化、现代化的制鞋企业。本次服务的客户便是当地一家颇具规模的大型鞋厂，拥有从原材料到成品的完整生产工艺线，包括裁料、针车、贴合组装、成型、质检包装等全流程环节。

福建晋江地处东南沿海，属亚热带海洋性季风气候，夏季漫长且湿热，平均气温高达30-35℃，相对湿度常年在75%以上，体感闷热难耐。对于劳动密集型的制鞋业而言，高温高湿的工作环境不仅影响工人的舒适度与生产效率，更对产品质量（如胶合牢固度）及员工稳定性构成挑战。

该厂区为多层钢筋混凝土结构的老式标准厂房，建筑年代较久，整体密封性一般。车间面积广阔，每层层高约5米，虽设有玻璃窗采光，但自然通风效果有限。此次需要改善的重点区域集中在裁料车间、针车流水线车间、贴合组装车间及质检包装车间。这些区域不仅人员密集，且在贴合等工序中会挥发出一定量的有害气体，传统的通风方式已无法满足日益严格的车间环境要求。

【瑞峰方案：因地制宜，科学组合】

面对客户的实际痛点——老厂房面积大、密封性差、层高高且使用功能复杂，瑞峰环保制冷的方案设计团队深入现场，综合考量了地理气候特点、建筑结构现状、生产工艺需求、人员密度分布以及客户预算成本等多重因素，最终摒弃了传统工业空调的单一思路，采用了一套“多设备组合、分区精准治理”的通风降温综合解决方案。

1. 人员密集区：远距离送风，打造“新风舒适区”

针对针车流水线车间和质检包装车间这类人员高度集中、设备布局紧凑的区域，我们选用了大功率蒸发式冷风机。利用福建地区空气相对干燥时段（或通过湿度预处理）的高蒸发效率原理，通过长距离风管+多风口定点送风的方式，将经降温加湿后的洁净冷风精准输送至每一位工人的作业点位。

考虑到车间面积虽大但地面设备繁多、可利用空间有限，我们创新性地采用了墙外吊挂式安装，既不占用宝贵的生产线地面面积，又保障了送风的均匀性。同时，为了快速排出机器运转及人体散热产生的热量，我们匹配了足够换气次数（设计为每小时60-80次） 的负压风机，在车间另一侧形成稳定的对流负压，强制将热气、粉尘及异味迅速排出室外，让清新空气源源不断。

2. 特殊工艺区：强力排风+水帘降温，攻克“异味高温”

在裁料车间和贴合组装车间，虽然人员密度相对较低，但生产工艺中胶合剂挥发的气体是主要矛盾。为此，我们采用了水帘墙+负压风机的经典组合。

其物理原理是：负压风机在车间一侧强力抽风，形成负压区，迫使车间另一侧的水帘墙处的空气以高速穿过湿润的蜂窝状湿帘。水流在湿帘表面蒸发时，会大量吸收空气中的热量（蒸发吸热原理），从而将室外热空气转化为清凉、湿润的冷空气送入车间。这一过程不仅实现了大幅降温（通常可达4-10℃），更通过强大的气流组织，将胶合工序产生的有害气体高效置换排出，确保了车间的空气质量与作业安全。

【为何不选空调？——瑞峰的专业考量与性价比分析】

起初，厂方曾考虑安装具备除湿功能的工业空调。瑞峰团队在深入分析后给出了更合理的建议：

物理结构不匹配：老厂房面积巨大、密封性差，安装空调意味着冷气会迅速流失，导致设备满负荷运转却效果不佳，造成巨大的能源浪费。

成本账算不过：在当前国内制鞋业面临低利润、高成本的竞争环境下，工业空调高昂的设备采购成本及后期天价的电费、维护费，将严重侵蚀企业利润。相比之下，蒸发式冷风机与负压风机的组合方案，初投成本仅为空调的1/3至1/5，运行能耗更是低至1/5。

效果与舒适度的平衡：虽然风机类产品的降温效果无法达到空调的恒温精度，但通过科学设计换气次数，车间温度相较于室外可降低4-8℃，且保持了空气的高度流通与清新。工人不再感觉闷热压抑，头晕、乏力现象显著减少，作业舒适度大幅提升，从而直接带动了生产效率的提高与产品合格率的稳定。

【项目价值与客户反馈】

工程竣工后，车间环境得到了显著改善。工人们在清凉流通的空气下工作，精神面貌焕然一新；贴合车间的有害气体浓度大幅下降，达到了职业健康安全标准。厂方负责人表示：“瑞峰不仅帮我们解决了大难题，更重要的是站在我们的角度考虑了投入产出比，真正做到了‘花小钱，办大事’。”

【瑞峰能力延伸】

此次福建晋江鞋厂工程的成功，是瑞峰环保制冷在大空间通风降温领域专业能力的又一次有力证明。虽然项目主体是鞋厂，但其所面临的“大空间、高热量、人员密集、空气污染、成本敏感”等痛点，在服装厂、玩具厂、电子厂、包装印刷厂、仓储物流中心等众多行业场景中普遍存在。

我们拥有针对不同建筑结构、不同生产工艺的综合设备选型能力，以及严谨的现场勘测与方案设计施工能力。我们始终坚持从客户的实际需求与长期运营成本出发，用科学方案替代昂贵设备，用专业技术为企业打造“既好用，又用得起”的舒适工作环境。

如果您也有类似的通风降温需求，欢迎联系瑞峰环保制冷，我们将为您提供一对一定制化解决方案。

Project Background and Challenges

In Jinjiang, Fujian Province, known as the "Shoe Capital of China", the footwear and apparel industry, as its core economic pillar, has nurtured numerous large-scale and modern shoe-making enterprises. The client of this service is a large-scale shoe factory in the local area, which has a complete production process line from raw materials to finished products, including cutting, sewing, bonding and assembly, forming, quality inspection and packaging, and other full process links.

Jinjiang, Fujian Province, is located on the southeast coast and has a subtropical maritime monsoon climate. The summer is long and humid, with an average temperature of 30-35 ℃ and a relative humidity of over 75% throughout the year, making it unbearable to feel hot and stuffy. For labor-intensive footwear industry, the high temperature and high humidity working environment not only affects the comfort and production efficiency of workers, but also poses challenges to product quality (such as bonding strength) and employee stability.

The factory area is an old-fashioned standard factory building with a multi story reinforced concrete structure, which has a relatively old building age and average overall sealing. The workshop has a spacious area, with each floor about 5 meters high. Although there are glass windows for natural lighting, the natural ventilation effect is limited. The key areas that need improvement this time are concentrated in the cutting workshop, needle assembly line workshop, bonding assembly workshop, and quality inspection packaging workshop. These areas are not only densely populated, but also emit a certain amount of harmful gases during bonding and other processes. Traditional ventilation methods are no longer able to meet the increasingly stringent workshop environmental requirements.

Ruifeng Plan: Tailored to local conditions and scientifically combined

Faced with the actual pain points of customers - the large area, poor sealing, high floor height, and complex usage functions of the old factory building, the design team of Ruifeng Environmental Protection Refrigeration went deep into the site and comprehensively considered multiple factors such as geographical climate characteristics, building structure status, production process requirements, personnel density distribution, and customer budget costs. Finally, they abandoned the single thinking of traditional industrial air conditioning and adopted a comprehensive ventilation and cooling solution of "multiple equipment combinations and precise zoning management".

1. Personnel intensive area: Long distance air supply to create a "fresh air comfort zone"

For areas such as the needle car assembly line workshop and the quality inspection packaging workshop where personnel are highly concentrated and equipment layout is compact, we have selected high-power evaporative air coolers. By utilizing the high evaporation efficiency principle of relatively dry air in Fujian region (or through humidity pretreatment), clean cold air that has been cooled and humidified is accurately delivered to each worker's work site through long-distance air ducts and multi outlet fixed-point air supply.

Considering that although the workshop area is large, there are numerous ground equipment and limited available space, we innovatively adopted an external wall hanging installation, which not only does not occupy valuable production line ground area, but also ensures the uniformity of air supply. At the same time, in order to quickly dissipate the heat generated by machine operation and human body heat dissipation, we have matched a negative pressure fan with sufficient air exchange rate (designed to be 60-80 times per hour) to form a stable convective negative pressure on the other side of the workshop, forcing hot air, dust, and odors to be quickly discharged outdoors, ensuring a continuous supply of fresh air.

2. Special process area: Strong exhaust and water curtain cooling to overcome "odor and high temperature"

In the cutting and bonding assembly workshops, although the personnel density is relatively low, the main contradiction in the production process is the gas emitted by the adhesive. For this, we adopted the classic combination of water curtain wall and negative pressure fan.

The physical principle is that a negative pressure fan forcefully draws air from one side of the workshop, forming a negative pressure zone that forces the air at the water curtain wall on the other side of the workshop to pass through the moist honeycomb wet curtain at high speed. When water evaporates on the surface of the wet curtain, it absorbs a large amount of heat from the air (evaporation heat absorption principle), thereby converting outdoor hot air into cool and humid cold air and sending it into the workshop. This process not only achieves significant cooling (usually up to 4-10 ℃), but also efficiently replaces and discharges harmful gases generated during the bonding process through strong airflow organization, ensuring the air quality and operational safety of the workshop.

Why not choose air conditioning? - Ruifeng's professional considerations and cost-effectiveness analysis

At first, the factory considered installing industrial air conditioners with dehumidification function. After in-depth analysis, the Ruifeng team provided more reasonable suggestions:

Physical structure mismatch: The old factory building has a huge area and poor sealing. Installing air conditioning means that the cold air will quickly dissipate, resulting in equipment running at full capacity but ineffective, causing huge energy waste.

Cost accounting cannot be accurately calculated: In the current competitive environment of low profit and high cost in the domestic footwear industry, the high equipment procurement cost of industrial air conditioning and the sky high electricity and maintenance fees in the later stage will seriously erode the profits of enterprises. In contrast, the combination scheme of evaporative air cooler and negative pressure fan has an initial investment cost of only 1/3 to 1/5 of the air conditioner, and the operating energy consumption is as low as 1/5.

Balance between effectiveness and comfort: Although the cooling effect of fan products cannot achieve the constant temperature accuracy of air conditioning, by scientifically designing the air exchange rate, the temperature in the workshop can be reduced by 4-8 ℃ compared to outdoors, while maintaining high air circulation and freshness. Workers no longer feel stuffy and oppressed, and dizziness and fatigue are significantly reduced. The comfort level of work is greatly improved, which directly drives the improvement of production efficiency and the stability of product qualification rate.

Project Value and Customer Feedback

After the completion of the project, the workshop environment has been significantly improved. The workers work in the cool and flowing air, and their mental outlook is refreshed; The concentration of harmful gases in the workshop has significantly decreased, meeting occupational health and safety standards. The person in charge of the factory said, "Ruifeng not only helped us solve major problems, but more importantly, from our perspective, it considered the input-output ratio and truly achieved 'spending small money, doing big things'

Ruifeng Capability Extension

The success of the Fujian Jinjiang Shoe Factory project is another powerful proof of Ruifeng Environmental Protection Refrigeration's professional ability in the field of large space ventilation and cooling. Although the main body of the project is a shoe factory, the pain points it faces, such as "large space, high heat, dense personnel, air pollution, and cost sensitivity," are commonly present in many industry scenarios such as clothing factories, toy factories, electronics factories, packaging and printing factories, and warehousing and logistics centers.

We have comprehensive equipment selection capabilities for different building structures and production processes, as well as rigorous on-site survey and scheme design and construction capabilities. We always insist on starting from the actual needs of our customers and long-term operating costs, replacing expensive equipment with scientific solutions, and creating a comfortable working environment for enterprises that is both easy to use and affordable with professional technology.

If you also have similar ventilation and cooling needs, please feel free to contact Ruifeng Environmental Protection Refrigeration. We will provide you with a customized solution.