一、项目背景

该企业位于“世界小商品之都”——浙江义乌，地处亚热带季风气候区，夏季高温多湿，冬季温和湿润，常年平均相对湿度较高，梅雨季节潮湿现象尤为明显。作为全球知名的轻工产品制造与贸易集散地，义乌地区产业集聚效应显著，对生产环境的稳定性与工艺配套要求日益提升。

该企业专业生产各类床垫、沙发垫、体育防护垫及户外用品垫等大规格垫类产品，拥有从原料裁剪、海绵复合、立体缝制到成品包装的完整工艺流程。厂房为多层钢筋混凝土标准结构，根据不同工艺环节划分为：原料仓储与裁剪车间、高密度海绵复合车间、自动化缝制车间、手工缝制与整形车间、检验包装车间等。因产品主要采用防水布与高密度海绵为主要材质，生产过程中对环境湿度敏感，需持续防霉防潮，以保障材料特性与成品品质。

二、环境改造需求

本次改造重点针对成品缝制车间，该区域人员密集、设备发热量大，夏季高温高湿环境严重影响员工工作效率与产品缝制质量。企业期望通过科学的通风降温方案，实现人员舒适度提升、生产效率保障与产品防霉控湿的综合目标。

三、瑞峰专业方案设计

瑞峰环保制冷技术团队经现场勘测与多维度分析，制定针对性方案：

1、地理气候适配：针对义乌夏季湿热、冬季阴冷的气候特点，需兼顾降温与除湿；

2、建筑结构分析：厂房密封性较好，适合采用内循环气流组织方式，避免室外湿热空气侵入；

3、空间利用优化：车间面积虽大，但地面设备与物料堆放密集，故选用吊挂式射流工业空调，不占用生产用地，实现空中均匀送风；

4、工艺环境要求：采用温湿双控技术，确保车间相对湿度稳定控制在工艺要求范围内。

方案最终配置多台大功率吊挂式射流工业省电空调，形成覆盖全车间的立体气流网络，实现以下效益：

1、人员体验提升：送风均匀柔和，无直吹不适感，车间温度稳定维持在26±2℃，员工工作舒适度显著提高，疲劳感下降；

2、生产效率保障：良好环境减少了因闷热导致的作业中断，缝制工序效率提升约15%；

3、产品品质控制：湿度长期稳定在60%以下，海绵与布匹贴合更紧密，缝线张力均匀，产品防霉合格率大幅提高。

四、方案对比与长效价值

企业原计划采用成本较低的蒸发式冷风机（环保空调），但瑞峰专业人员结合本地气候与工艺特点指出：冷风机通过水蒸发降温，会持续增加车间湿度，不仅无法控湿，还可能加剧产品受潮风险，且温度调节精度低。而射流工业空调具备温度与湿度独立控制能力，前期投入虽略高，但运行能效比优异，长期来看，在节能省电、维护成本及环境稳定性方面更具综合性价比，为企业提供了可持续的车间环境解决方案。

1、 Project Background

The enterprise is located in Yiwu, Zhejiang, known as the "World Capital of Small Commodities". It is situated in a subtropical monsoon climate zone, with high temperatures and humidity in summer and mild and humid winters. The average relative humidity is relatively high throughout the year, and the phenomenon of humidity is particularly evident during the rainy season. As a globally renowned hub for the manufacturing and trading of light industrial products, Yiwu has a significant industrial agglomeration effect, with increasing demands for the stability of the production environment and technological support.

This enterprise specializes in producing various types of mattresses, sofa mats, sports protection mats, outdoor product mats, and other large-sized mat products. It has a complete process from raw material cutting, sponge composite, three-dimensional sewing to finished product packaging. The factory building is a multi story reinforced concrete standard structure, divided into different process stages: raw material storage and cutting workshop, high-density sponge composite workshop, automated sewing workshop, manual sewing and shaping workshop, inspection and packaging workshop, etc. Due to the use of waterproof cloth and high-density sponge as the main materials in the product, the production process is sensitive to environmental humidity and requires continuous mold and moisture prevention to ensure material characteristics and finished product quality.

2、 Environmental renovation requirements

The focus of this renovation is on the finished sewing workshop, which is densely populated with personnel and has high equipment heat generation. The high temperature and humidity environment in summer seriously affects the work efficiency of employees and the quality of product sewing. Enterprises expect to achieve comprehensive goals of improving personnel comfort, ensuring production efficiency, and preventing mold and moisture in products through scientific ventilation and cooling solutions.

3、 Ruifeng Professional Scheme Design

The Ruifeng Environmental Protection Refrigeration Technology Team has developed a targeted plan through on-site investigation and multidimensional analysis

(1). Geographical climate adaptation: In response to the humid and hot climate characteristics of Yiwu in summer and the cold and shady climate in winter, it is necessary to balance cooling and dehumidification;

(2). Building structure analysis: The factory building has good sealing and is suitable for using internal circulation airflow organization to avoid the invasion of outdoor humid and hot air;

(3). Space utilization optimization: Although the workshop area is large, the ground equipment and material stacking are dense, so a hanging jet industrial air conditioner is selected to achieve uniform air supply without occupying production land;

(4). Process environment requirements: Adopt temperature and humidity dual control technology to ensure that the relative humidity in the workshop is stably controlled within the process requirements.

The final configuration of the plan includes multiple high-power suspended jet industrial energy-saving air conditioners, forming a three-dimensional airflow network covering the entire workshop, achieving the following benefits:

(1). Improved personnel experience: uniform and gentle air supply, no discomfort from direct blowing, stable workshop temperature maintained at 26 ± 2 ℃, significantly improved employee work comfort, and reduced fatigue;

(2). Production efficiency guarantee: A good environment reduces work interruptions caused by stuffiness, and improves sewing process efficiency by about 15%;

(3). Product quality control: The humidity remains stable below 60% for a long time, the sponge and fabric adhere more tightly, the tension of the stitching is uniform, and the qualified rate of mold prevention in the product is greatly improved.

4、 Comparison of Plans and Long term Value

The company originally planned to use low-cost evaporative air coolers (environmentally friendly air conditioners), but Ruifeng professionals pointed out that the air coolers, based on local climate and process characteristics, will continue to increase workshop humidity through water evaporation cooling. This not only fails to control humidity, but may also exacerbate the risk of product moisture, and the temperature regulation accuracy is low. Jet industrial air conditioning has the ability to independently control temperature and humidity. Although the initial investment is slightly higher, the operating energy efficiency ratio is superior. In the long run, it has a more comprehensive cost-effectiveness in terms of energy saving, maintenance costs, and environmental stability, providing sustainable workshop environment solutions for enterprises.