【项目背景与挑战】

本次项目的客户——河南新乡XX鞋厂，是一家在当地颇具规模、拥有完整制鞋产业链的现代化企业。河南新乡地处中原，地理位置已偏向北方，属于典型的暖温带大陆性季风气候，四季分明：夏季虽然炎热，但与湿热的南方地区相比，其干热天气更多，空气相对湿度较低。这种气候特点，恰恰是蒸发式冷风机能够发挥最佳效能的天然优势（冷风机利用水蒸发降温，在相对干燥的气候下降温效果更为显著）。而当地夏季的闷热现象，依然严重影响工人的作业舒适度与生产效率。

值得一提的是，河南已从传统的劳务输出大省，成功转型为承接产业转移、实现“家门口就业”的经济大省。像XX鞋厂这样的企业，正是“引企入豫，就地消化劳动力”的成功典范，为当地提供了大量稳定的就业岗位。

该鞋厂拥有完整的制鞋生产工艺流程，涵盖了从原材料裁断、针车缝纫、鞋面与鞋底贴合组装、到最终的质量检测与成品包装等所有核心环节。这些环节不仅人员密集，而且在贴合等工序中，不可避免地会产生一定的工业胶水气味和热量。

【工程难点分析】

此次需要进行通风降温改造的区域，是工厂新建不久的大平层钢筋混凝土结构标准厂房，其特点给我们的方案设计带来了不小的挑战：

1、空间超大：单层面积高达18000多平方米，是典型的超大空间工业厂房。

2、层高超高：层高达12米，普通空调的冷气根本无法下沉，降温效果微乎其微。

3、结构限制：虽然墙面设有玻璃窗采光，但仅靠自然通风无法解决内部热量和废气聚集的问题。

4、工况复杂：涉及裁料车间、针车流水线车间、贴合组装车间、质检包装车间等多个功能区，人员密度大，且贴合区域存在有害气体和热量散发。

【瑞峰定制化解决方案】

面对上述多重挑战，瑞峰环保制冷的方案设计人员深入现场，结合新乡当地气候、厂房超高空间结构、人员密集分布以及各车间不同的生产工艺需求，为客户量身打造了一套“组合拳”式的通风降温方案。

1、核心降温：大功率蒸发式冷风机 + 远距离长风管系统

考虑到车间面积超大且人员密集，我们摒弃了效果有限的传统风扇，选用了送风距离远、风量大的大功率蒸发式冷风机。结合物理学原理，利用水蒸发吸热的自然现象，将室外新鲜空气降温后，通过精心设计的长风管和多风口，将凉爽、湿润、清新的空气精准输送到每一个工人的作业点位。这种“定点送风”的方式，能有效解决超大空间内空气流动性差的问题，让员工时刻感受到清风拂面。

2、安装策略：墙外吊挂式安装，不占宝贵地面空间

针对车间生产设备多、物料堆放占用面积大的特点，我们创新性地采用了墙外吊挂式安装。将冷风机主机安装在车间外墙上，仅通过风管将冷风引入室内。这种设计零占用车间地面面积，完全不影响生产动线和物料摆放，将宝贵的生产空间还给企业。

3、废气与热量排出：匹配负压风机，形成健康气流通风系统

为了彻底排出贴合工序产生的有害气体及设备、人员聚集产生的热量，我们同步安装了与冷风机换气次数相匹配的负压风机。通过负压风机强制排风，在车间内形成强大的“新风推旧风”的气流组织，从进气到排气形成完整通路，确保有害气体和热量无死角、无残留，时刻保持车间空气清新健康。

【为什么选择“瑞峰方案”而非“工业空调”？】

起初，厂方曾考虑安装具有除湿功能的工业空调。对此，瑞峰的专业人员进行了深入分析：虽然新厂房密封性好，理论上适合空调，但必须从客户的实际运营成本出发。

1、物理原理对比：工业空调通过制冷剂循环进行内部热交换，是“内循环”降温，需要紧闭门窗，长时间运行后室内空气质量反而会下降。而我们采用的蒸发式冷风机，是“外循环”通风降温，通过水洗和冷却室外新鲜空气后源源不断送入室内，始终保持空气的清新度。

2、经济成本分析：在当前国内制鞋业利润普遍偏薄的行业背景下，工业空调高昂的一次性设备投入和惊人的后期电费、维护成本，将给企业带来巨大的经济负担。而我们的方案，初期投资仅为空调的1/3甚至更低，运行能耗更是低至1/5。

3、综合效益：虽然风机类产品的降温效果无法像空调那样“冰爽”，但通过科学的设计，将车间温度控制在人体舒适的范围内，配合强大的通风换气能力，极大地改善了工人的体感舒适度。员工不再因闷热而烦躁、疲惫，工作专注度和生产效率得到显著提升，人员流失率也相应降低。这种“高性价比”的解决方案，正是瑞峰为客户长远利益考虑的最佳体现。

【案例延伸与瑞峰实力证明】

此次新乡XX鞋厂的工程，虽然是制鞋行业的案例，但其成功经验完全可以复制推广到纺织、服装、包装、玩具、印刷、电子加工等同样面临“大空间、人员密集、有异味或发热源”的各类生产场景。

这个项目充分证明了瑞峰环保制冷具备以下核心能力：

1、强大的方案设计能力：面对超大、超高的复杂空间，我们能够精准分析，做出最科学的设备选型和管道布局。

2、过硬的施工实力：能够高质量完成大跨度、大规模的风管安装与系统调试。

3、以客户为中心的服务理念：我们不仅仅提供设备，更是在为客户提供“成本最优、效果最佳”的综合解决方案。我们始终坚持站在客户的角度，权衡利弊，用专业的知识和丰富的经验，为客户创造最大的价值。

Project Background and Challenges

The client of this project, XX Shoe Factory in Xinxiang, Henan, is a modern enterprise with a considerable scale and a complete shoe-making industry chain in the local area. Xinxiang, Henan Province is located in the Central Plains, with a geographical location that has shifted towards the north. It belongs to a typical warm temperate continental monsoon climate with four distinct seasons: although the summer is hot, compared with the humid and hot southern regions, it has more dry and hot weather, and the relative humidity of the air is lower. This climate characteristic is precisely the natural advantage that evaporative air coolers can achieve the best performance (air coolers use water evaporation to cool down, and the cooling effect is more significant in relatively dry climates). However, the hot and humid weather in the local summer still seriously affects the comfort and production efficiency of workers.

It is worth mentioning that Henan has successfully transformed from a traditional labor export province to an economic powerhouse that undertakes industrial transfer and achieves "employment at the doorstep". Enterprises like XX Shoe Factory are a successful example of "attracting enterprises to Henan and digesting labor locally", providing a large number of stable employment opportunities for the local area.

The shoe factory has a complete shoe-making production process, covering all core links from raw material cutting, needle sewing, shoe upper and sole fitting assembly, to final quality inspection and finished product packaging. These processes are not only densely populated, but also inevitably generate a certain amount of industrial adhesive odor and heat during the bonding process.

Analysis of Engineering Difficulties

The area that requires ventilation and cooling renovation this time is a newly built large flat reinforced concrete structure standard factory building, which poses significant challenges to our design plan

1. Spacious: With a single floor area of over 18000 square meters, it is a typical industrial factory with a super large space.

2. Super high floor height: With a floor height of up to 12 meters, the air conditioning of ordinary air conditioners cannot sink at all, and the cooling effect is minimal.

3. Structural limitations: Although the wall is equipped with glass windows for natural lighting, relying solely on natural ventilation cannot solve the problem of internal heat and exhaust gas accumulation.

4. Complex working conditions: involving multiple functional areas such as cutting workshop, needle assembly line workshop, bonding assembly workshop, quality inspection packaging workshop, etc., with high personnel density, and harmful gases and heat dissipation in the bonding area.

Ruifeng Customized Solution

Faced with the multiple challenges mentioned above, the design personnel of Ruifeng Environmental Protection Refrigeration went deep into the site, combined with the local climate in Xinxiang, the ultra-high spatial structure of the factory, the dense distribution of personnel, and the different production process requirements of each workshop, to tailor a "combination fist" style ventilation and cooling solution for the customer.

1. Core cooling: high-power evaporative air cooler+long-distance long air duct system

Considering the large workshop area and dense personnel, we abandoned traditional fans with limited effectiveness and chose high-power evaporative air coolers with long air supply distance and high air volume. Based on the principles of physics and the natural phenomenon of water evaporation absorbing heat, the outdoor fresh air is cooled down. Through carefully designed long air ducts and multiple vents, the cool, humid, and fresh air is accurately delivered to each worker's work site. This "fixed-point air supply" method can effectively solve the problem of poor air flow in ultra large spaces, allowing employees to feel the cool breeze brushing their faces at all times.

2. Installation strategy: Wall mounted hanging installation, not occupying valuable floor space

In response to the characteristics of multiple production equipment and large material stacking area in the workshop, we innovatively adopted a wall mounted hanging installation. Install the main unit of the air cooler on the exterior wall of the workshop, and only introduce cold air into the room through the air duct. This design occupies zero workshop floor area and does not affect the production line or material placement, returning valuable production space to the enterprise.

3. Exhaust gas and heat dissipation: matched with negative pressure fan to form a healthy airflow ventilation system

In order to completely eliminate the harmful gases generated by the bonding process and the heat generated by equipment and personnel accumulation, we simultaneously installed a negative pressure fan that matches the air exchange rate of the air cooler. By using a negative pressure fan to force exhaust, a strong airflow organization of "fresh air pushing old air" is formed in the workshop, forming a complete path from intake to exhaust, ensuring that harmful gases and heat have no dead corners or residues, and keeping the workshop air fresh and healthy at all times.

Why choose the "Ruifeng solution" instead of "industrial air conditioning"

At first, the factory considered installing industrial air conditioners with dehumidification function. Regarding this, professionals from Ruifeng conducted a thorough analysis: although the new factory building has good sealing and is theoretically suitable for air conditioning, it must be based on the actual operating costs of the customer.

1. Comparison of physical principles: Industrial air conditioning uses refrigerant circulation for internal heat exchange, which is an "internal circulation" cooling process that requires closing doors and windows tightly. After prolonged operation, indoor air quality may actually decrease. And the evaporative air cooler we use is an "external circulation" ventilation cooling system, which continuously sends fresh outdoor air into the room after washing and cooling, maintaining the freshness of the air at all times.

2. Economic cost analysis: Against the backdrop of the current generally thin profit margins in the domestic footwear industry, the high one-time equipment investment and astonishing post production electricity and maintenance costs of industrial air conditioning will bring huge economic burdens to enterprises. And our plan has an initial investment of only one-third or even lower than that of air conditioning, with operating energy consumption as low as one-fifth.

3. Comprehensive benefits: Although the cooling effect of fan products cannot be as "refreshing" as air conditioning, through scientific design, the workshop temperature is controlled within a comfortable range for the human body, combined with strong ventilation and air exchange capabilities, greatly improving the workers' physical comfort. Employees are no longer irritable or exhausted due to the hot and humid weather, and their work focus and production efficiency have been significantly improved, resulting in a corresponding decrease in personnel turnover rate. This "high cost-effectiveness" solution is the best embodiment of Ruifeng's consideration for the long-term interests of customers.

Case extension and proof of Ruifeng's strength

The project of XX Shoe Factory in Xinxiang, although a case study in the footwear industry, can fully replicate and promote its successful experience to various production scenarios such as textiles, clothing, packaging, toys, printing, electronic processing, which also face "large space, dense personnel, odor or heat source".

This project fully demonstrates that Ruifeng Environmental Protection Refrigeration has the following core capabilities:

1. Powerful design capability: Faced with extremely large and complex spaces, we can accurately analyze and make the most scientific equipment selection and pipeline layout.

2. Strong construction capabilities: able to complete large-span and large-scale air duct installation and system debugging with high quality.

3. Customer centered service philosophy: We not only provide equipment, but also offer customers comprehensive solutions that are cost-effective and efficient. We always insist on standing from the customer's perspective, weighing the pros and cons, using professional knowledge and rich experience to create the maximum value for customers.