【项目背景与挑战：为莘莘学子打造舒适就餐环境】

本次项目位于佛山市顺德区北滘镇的莘村中学食堂。顺德地处珠江三角洲腹地，属亚热带海洋性季风气候，夏季高温漫长且湿度大，体感闷热。学校食堂作为寄宿制学校的核心生活配套设施，承载着全校师生一日三餐的重任，其环境质量不仅关乎学生的饮食健康，更直接影响着师生的就餐心情与学校的整体教学质量。一个凉爽、空气流通的就餐环境，是提升学生校园生活幸福感的重要一环。

该食堂为单层大平层结构，采用彩钢瓦屋顶与砖砌墙体，尽管采光良好，但彩钢瓦的强导热性使得室内在夏季如同“蒸笼”。食堂总面积达6000平方米，挑高约10米，分为学生就餐区与教师就餐区。由于是寄宿制，每到用餐高峰时段，近千名学生同时涌入，人员高度密集，导致室内二氧化碳浓度飙升、热气积聚，仅靠自然通风和风扇根本无法解决闷热问题，改善就餐环境刻不容缓。

【设计方案：大风量离心式冷风机+长风管布局组合】

针对该食堂的特殊情况，瑞峰环保制冷的设计团队深入现场勘测，综合考虑了佛山当地高温高湿的气候特征、彩钢瓦结构的强吸热性、高达10米的挑空大空间以及高峰时段人员密集产生的巨大热负荷等多种因素，摒弃了传统家用空调或普通风扇的无效方案，最终制定了一套极具针对性的专业解决方案：

1. 核心设备：大风量离心式冷风机

我们采用工业级大风量离心式冷风机作为冷源。其核心原理是利用“水蒸发吸热”这一自然物理现象：当室外新鲜空气通过湿帘时，水膜迅速吸收空气中的热量并蒸发，从而将空气温度降低4-10℃，同时增加空气湿度。离心风机则负责将这些清凉、湿润、洁净的新鲜空气，以强大动力送入风管，实现远距离输送。

2. 安装布局：设备外置+长风管均匀送风

为了最大化利用室内空间，我们将所有冷风机设备安装在建筑墙体外侧，完全不占用食堂内部宝贵的就餐面积。冷气通过精心设计的长风管网络，被引导至食堂10米高的上部空间。通过风管上开设的众多出风口，冷气均匀地向下沉降，覆盖整个就餐区域。这种“上送下回”的气流组织方式，能有效置换室内热空气。大风量送入的新风在室内形成微正压，将师生呼出的浊气、炉灶传递的余热以及彩钢瓦屋顶的热辐射从门窗缝隙中“挤”出室外，实现空气的全面置换与降温。

3. 细节考量：空气幕阻断冷量流失

考虑到食堂就餐高峰期人员进出极其频繁，若大门常开，室内冷气将大量外泄，造成能源浪费；若大门常闭，又严重影响通行效率。为此，我们特意在出入大门上方安装了风幕机。（专业拓展：风幕机的工作原理是通过强劲的风力产生一道看不见的空气幕墙。这道高速气流能将室内外空气进行有效分隔，既能阻挡室外的热浪、蚊虫和灰尘侵入，又能防止室内的冷气外溢，同时保证了人员和车辆的顺畅通行，是大型公共场所节能环保的“隐形门”。）

【工程成效与价值】

项目完工后，莘村中学食堂的环境得到了颠覆性改善。即使在盛夏正午，师生们步入食堂也能感受到扑面而来的清凉与清新空气，告别了过去“吃饭五分钟，流汗一小时”的窘境。舒适的就餐环境获得了全校师生的一致好评，也体现了校方对学子生活品质的细致关怀，间接提升了学校的整体形象。

【案例延伸：瑞峰的专业实力体现】

此次莘村中学食堂工程的成功，虽然是学校类项目的典型案例，但其业务影响范围远不止于此。该方案所展现的强大实力，同样适用于各类大型工业厂房、仓储物流中心、商超卖场、体育场馆及展会大厅等大空间场所。

这一案例充分证明，瑞峰环保制冷具备以下核心能力：

1. 精准的综合选型能力：能够根据复杂的现场环境，在众多设备中精准匹配最合适的大风量设备。

2. 强大的方案设计能力：精通长风管布局设计，确保气流均匀覆盖大型空间，无死角。

3. 专业的细节处理能力：从设备外置节省空间，到出入口加装风幕机，每一个细节都体现了我们对工程品质的极致追求，确保方案不仅高效，而且人性化、节能化。

选择瑞峰，不仅是选择一套降温设备，更是选择一份针对大空间通风降温难题的专业解决方案。

Project Background and Challenge: Creating a Comfortable Dining Environment for Students

This project is located in the cafeteria of Shencun Middle School in Beijiao Town, Shunde District, Foshan City. Shunde is located in the hinterland of the the Pearl River Delta and has a subtropical marine monsoon climate. It has a long high temperature and high humidity in summer and feels stuffy. As the core living facilities of boarding schools, the school cafeteria bears the responsibility of providing three meals a day for all teachers and students. Its environmental quality not only affects students' dietary health, but also directly affects their dining mood and the overall teaching quality of the school. A cool and well ventilated dining environment is an important part of enhancing students' sense of happiness in campus life.

The canteen is a single story large flat structure, with a color steel tile roof and brick walls. Although the lighting is good, the strong thermal conductivity of the color steel tiles makes the indoor space feel like a "steamer" in summer. The total area of the cafeteria is 6000 square meters, with a height of about 10 meters, divided into a student dining area and a teacher dining area. Due to the boarding system, nearly a thousand students flock in at the same time during peak meal times, resulting in a high density of people and a surge in indoor carbon dioxide concentration and heat accumulation. Natural ventilation and fans alone cannot solve the problem of stuffiness, and improving the dining environment is urgent.

Design Proposal: Combination of High Airflow Centrifugal Air Cooler and Long Duct Layout

In response to the special situation of the canteen, the design team of Ruifeng Environmental Protection Refrigeration conducted an in-depth on-site survey and comprehensively considered various factors such as the high temperature and high humidity climate characteristics of Foshan, the strong heat absorption of the color steel tile structure, the large space of up to 10 meters, and the huge heat load generated by dense personnel during peak hours. They abandoned the ineffective solutions of traditional household air conditioning or ordinary fans and ultimately developed a highly targeted professional solution:

1. Core equipment: high air volume centrifugal air cooler

We use industrial grade high air volume centrifugal air coolers as the cooling source. The core principle is to utilize the natural physical phenomenon of "water evaporation absorbs heat": when fresh outdoor air passes through a wet curtain, the water film quickly absorbs heat from the air and evaporates, thereby reducing the air temperature by 4-10 ℃ and increasing air humidity. Centrifugal fans are responsible for delivering cool, moist, and clean fresh air into ducts with powerful power, achieving long-distance transportation.

2. Installation layout: External device+long air duct for uniform air supply

In order to maximize the use of indoor space, we installed all the air cooling equipment on the outside of the building walls, without occupying any valuable dining area inside the cafeteria. The air conditioning is guided to the upper space of the cafeteria, which is 10 meters high, through a carefully designed network of long air ducts. Through the numerous air outlets on the air duct, the cold air evenly sinks downwards, covering the entire dining area. This "upward return" airflow organization method can effectively replace indoor hot air. The fresh air sent in by high air volume forms a slight positive pressure indoors, squeezing out the turbid air exhaled by teachers and students, the waste heat transmitted by the stove, and the thermal radiation from the color steel tile roof through the gaps between doors and windows, achieving comprehensive air replacement and cooling.

3. Detail consideration: Air curtain blocks the loss of cooling capacity

Considering the extremely frequent entry and exit of personnel during peak dining hours in the cafeteria, if the main door is kept open, a large amount of indoor air conditioning will leak out, resulting in energy waste; If the gate is constantly closed, it will seriously affect the efficiency of traffic. For this reason, we have specially installed air curtains above the entrance and exit gates. (Professional expansion: The working principle of a wind curtain machine is to generate an invisible air curtain wall through strong wind power. This high-speed airflow can effectively separate indoor and outdoor air, blocking outdoor heat waves, mosquitoes, and dust from entering, preventing indoor cold air from overflowing, and ensuring smooth passage of people and vehicles. It is an energy-saving and environmentally friendly "invisible door" for large public places.)

Engineering Effectiveness and Value

After the completion of the project, the environment of the cafeteria at Shencun Middle School has undergone a revolutionary improvement. Even at noon in the scorching summer, teachers and students can feel the cool and fresh air rushing into the cafeteria, bidding farewell to the embarrassing situation of "eating for five minutes and sweating for an hour" in the past. The comfortable dining environment has received unanimous praise from all teachers and students, reflecting the school's meticulous care for students' quality of life and indirectly enhancing the overall image of the school.

[Case extension: Reflection of Ruifeng's professional strength]

The success of the Shencun Middle School cafeteria project, although a typical case of school projects, has a business impact far beyond this. The strong capabilities demonstrated by this plan are also applicable to various large industrial plants, warehousing and logistics centers, supermarkets, sports venues, exhibition halls and other large space venues.

This case fully proves that Ruifeng Environmental Protection Refrigeration has the following core capabilities:

1. Accurate comprehensive selection ability: able to accurately match the most suitable high air volume equipment among numerous devices based on complex on-site environments.

2. Strong design ability: Proficient in long duct layout design, ensuring even airflow coverage of large spaces without blind spots.

3. Professional detail handling ability: From saving space on external devices to installing air curtains at entrances and exits, every detail reflects our ultimate pursuit of engineering quality, ensuring that the solution is not only efficient, but also user-friendly and energy-saving.

Choosing Ruifeng is not only about choosing a set of cooling equipment, but also about choosing a professional solution for the problem of ventilation and cooling in large spaces.