冷媒电缆桥架必做死弯？背后的核心逻辑竟和输送效率息息相关

　　Do refrigerant cable trays need to have dead bends? The core logic behind it is closely related to delivery efficiency

　　在冷媒系统施工中，有个让不少施工人员困惑的细节：为啥冷媒桥架必须做死弯？很多人下意识觉得，常规电缆桥架都讲究圆弧过渡，避免锐角损伤电缆，冷媒桥架反而要反其道而行之，用90度直角的死弯设计，这背后肯定藏着关键门道。今天就把这个行业知识点讲透，不管是施工还是选型，都能帮你搞懂“为什么必须这么做”。

　　In the construction of refrigerant systems, there is a detail that confuses many construction workers: why must the refrigerant bridge be bent? Many people subconsciously believe that conventional cable trays emphasize curved transitions to avoid sharp angles damaging the cables, while refrigerant trays should go in the opposite direction, using a dead bend design with a 90 degree right angle. There must be key tricks hidden behind this. Today, I will explain the knowledge points of this industry thoroughly. Whether it is construction or selection, it can help you understand why you must do it this way.

　　得明确，这里说的“死弯”可不是随意的直角弯折，而是特指内侧没有圆弧、内角锐利的90度直角弯头。别小看这个设计差异，它直接影响冷媒系统的核心性能——输送效率和稳定性。要搞懂这个问题，得先从冷媒的输送特性说起：冷媒在管道内流动时，对流向变化的敏感度远超普通电缆敷设，任何不合理的过渡设计，都可能破坏流动状态，引发连锁问题。

　　Firstly, it must be clarified that the term 'dead bend' referred to here is not a random right angle bend, but specifically refers to a 90 degree right angle bend with no inner arc and sharp inner angles. Don't underestimate this design difference, it directly affects the core performance of the refrigerant system - conveying efficiency and stability. To understand this issue, we need to start with the transport characteristics of the refrigerant: when the refrigerant flows in the pipeline, its sensitivity to changes in flow direction far exceeds that of ordinary cable laying. Any unreasonable transition design may disrupt the flow state and cause chain problems.

　　核心的原因，就是**避免涡流产生，保障冷媒输送效率**。可能有人会问，什么是涡流？简单说，就像水流经过弯道时，如果弯道太缓、有圆弧，容易在内侧形成旋转的漩涡，消耗水流动力；冷媒在管道内流动也是同理，要是桥架用了圆弧过渡的弯头，冷媒流向改变时，就会在圆弧内侧产生类似的涡流。这种涡流看似不起眼，却会大幅增加输送阻力，导致冷媒流速下降、压力损耗变大，直接影响整个系统的制冷或制热效率，还可能让设备负荷增加，长期运行下来既费能耗，又会缩短设备寿命。

　　The core reason is to avoid vortex generation and ensure the efficiency of refrigerant transportation. Someone may ask, what is eddy current? Simply put, just like when water flows through a bend, if the bend is too gentle and has a circular arc, it is easy to form a rotating vortex on the inner side, which consumes the power of the water flow; The flow of refrigerant in the pipeline is the same. If a curved bend is used for the bridge, when the direction of refrigerant flow changes, a similar vortex will be generated on the inside of the arc. This kind of vortex may seem inconspicuous, but it greatly increases the conveying resistance, leading to a decrease in refrigerant flow rate and increased pressure loss, directly affecting the cooling or heating efficiency of the entire system, and may also increase equipment load. Long term operation not only consumes energy, but also shortens equipment life.

　　而死弯的90度直角设计，恰恰能解决这个问题。当冷媒流向遇到直角死弯时，流向会发生突变，这种突变能让冷媒的压力分布更均匀，不会在局部形成旋转的涡流。就像水流遇到直角挡板时，会直接改变方向向前流动，而不是在拐角处打转，从而减少了输送阻力，保证冷媒能以稳定的流速和压力输送，让整个冷媒系统的运行效率保持在状态。这也是冷媒桥架区别于普通电缆桥架的关键——普通桥架关注的是保护电缆，而冷媒桥架的核心是适配冷媒输送的流体力学特性。

　　The 90 degree right angle design of the dead bend can precisely solve this problem. When the refrigerant flow encounters a right angled dead bend, the flow direction will undergo a sudden change, which can make the pressure distribution of the refrigerant more uniform and prevent the formation of rotating vortices locally. Just like when water encounters a right angled baffle, it will directly change direction and flow forward instead of turning at the corner, thereby reducing the conveying resistance and ensuring that the refrigerant can be transported at a stable flow rate and pressure, keeping the operating efficiency of the entire refrigerant system at its optimal state. This is also the key difference between refrigerant trays and ordinary cable trays - ordinary trays focus on protecting cables, while the core of refrigerant trays is to adapt to the fluid dynamics characteristics of refrigerant transportation.

　　可能有人会质疑：直角死弯会不会对冷媒管道造成损伤？其实完全不用担心。冷媒桥架的死弯设计，是针对冷媒管道的材质和敷设需求专门优化的，内角虽锐利，但会预留出与管道适配的空间，不会直接挤压或摩擦管道。而且冷媒管道本身具有一定的柔韧性，在规范施工的前提下，90度直角转弯不会对管道造成结构性损伤，反而能通过稳定的流向设计，减少管道因涡流冲击产生的疲劳损耗。

　　Some people may question whether a right angled dead bend will cause damage to the refrigerant pipeline? Actually, there's no need to worry at all. The dead bend design of refrigerant bridge is specifically optimized for the material and laying requirements of refrigerant pipelines. Although the internal angles are sharp, space is reserved for compatibility with the pipelines, without directly squeezing or rubbing the pipelines. Moreover, the refrigerant pipeline itself has a certain degree of flexibility. Under the premise of standardized construction, a 90 degree right angle turn will not cause structural damage to the pipeline. Instead, through stable flow design, it can reduce the fatigue loss of the pipeline caused by eddy current impact.

　　从行业规范和实际应用来看，死弯设计也是冷媒桥架的硬性要求。冷媒系统对输送稳定性的要求极高，哪怕是微小的涡流损耗，长期积累下来也会影响系统性能。的桥架厂家，比如瑞仕达电气，在研发冷媒桥架时，都会严格遵循这一设计原则，通过精准的直角加工工艺，确保死弯的角度和尺寸符合要求，既保证输送效率，又兼顾施工安装的便利性。

　　From the perspective of industry standards and practical applications, dead bend design is also a mandatory requirement for refrigerant bridge structures. The refrigerant system has extremely high requirements for transport stability, and even small eddy current losses can accumulate over time and affect system performance. Professional cable tray manufacturers, such as Ruishida Electric, strictly follow this design principle when developing refrigerant cable trays. Through precise right angle processing technology, they ensure that the angle and size of dead bends meet the requirements, ensuring both transportation efficiency and convenience of construction and installation.

　　总结下来，冷媒桥架必做死弯，绝非随意的设计要求，而是基于冷媒输送的流体力学特性得出的解——通过90度直角的死弯设计，避免涡流产生，保证压力均匀，从而保障整个冷媒系统的输送效率和运行稳定性。这也提醒我们，不同场景下的桥架设计，核心需求不同，不能一概而论。在冷媒系统施工中，只有严格遵循这种细节设计规范，才能让系统长期稳定运行。

　　In summary, the refrigerant bridge must have a dead bend, which is not a random design requirement, but the optimal solution based on the fluid dynamics characteristics of refrigerant transportation - through a 90 degree right angle dead bend design, vortex generation is avoided, pressure uniformity is ensured, and the entire refrigerant system's transportation efficiency and operational stability are guaranteed. This also reminds us that bridge design in different scenarios has different core requirements and cannot be generalized. In the construction of refrigerant systems, only by strictly following these detailed design specifications can the system operate stably for a long time.

　　如果对冷媒桥架的设计细节、施工规范还有疑问，建议咨询的桥架厂家。像瑞仕达电气这类专注桥架生产与研发的企业，不仅能提供符合规范的产品，还能结合实际施工场景给出指导，让每一个细节都适配系统需求，避免因设计不当影响系统性能。

　　If you have any questions about the design details and construction specifications of the refrigerant bridge, it is recommended to consult a professional bridge manufacturer. Enterprises like Ruishida Electric, which focus on cable tray production and research and development, can not only provide products that meet specifications, but also provide professional guidance based on actual construction scenarios, so that every detail is adapted to system requirements, avoiding the impact of improper design on system performance.

　　本文由  济南电缆桥架  友情奉献.更多有关的知识请点击  http://www.sddlqj.cn/   真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

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