翅片管又稱擴展表面管，可以有殼體也可以沒有，翅片管是在原有的管子表面上，不論外表面還是內表面加工上了很多翅片，使原有的表面得到擴展，而形成一種獨特的傳熱元件。翅片管在動力、化工、制冷等工業中有廣泛的應用，主要應用于空氣冷卻器，能減輕工業缺水及工業用水的環境污染問題，傳熱強化方面使得低肋螺紋管及微細肋管等在蒸發、冷凝方面的相變換熱得到廣泛應用。由多支翅片管按一定規律排列起來而組成的換熱單元叫翅片管束。一個翅片管換熱器可以由一個或多個翅片管束組成，對翅片管束了解有助于翅片管換熱器的應用。

Finned tube, also known as extended surface tube, can have shell or not. Finned tube is on the original surface of the tube, whether the outer surface or the inner surface is processed with many fins, so that the original surface is expanded, and a unique heat transfer element is formed. Finned tubes are widely used in power, chemical industry, refrigeration and other industries. They are mainly used in air coolers, which can reduce the water shortage and environmental pollution of industrial water. In terms of heat transfer enhancement, phase change heat transfer of low fin spiral tubes and micro fin tubes has been widely used in evaporation and condensation. The heat exchange unit composed of several finned tubes arranged according to certain rules is called finned tube bundle. A finned tube heat exchanger can be composed of one or more finned tube bundles. Understanding the finned tube bundle is helpful to the application of finned tube heat exchanger.

翅片管束的組成部分有哪些呢？

What are the components of finned tube bundle?

1.翅片管多支：傳熱的基本元件；

1. Multiple finned tubes: basic elements of heat transfer;

2.管箱集箱或管板：連接翅片管兩端的箱體，彎管或鋼板，當翅片管與箱體或管板連接以后，翅片管之間的間距也就固定了，同時管箱使管內的流體形成了連續的流道；

2. Tubesheet or header: the box, elbow or steel plate connecting the two ends of finned tube. When the finned tube is connected with the box or tube sheet, the spacing between the finned tubes is fixed, and the tube box makes the fluid in the tube form a continuous flow channel;

3.構架：使整個翅片管束得以支撐和固定。

3. Frame: support and fix the whole finned tube bundle.

管束是空冷器中主要部分，由翅片管、管箱和框架組成，是一個獨立的結構整體，它的基本參數有管束型式通常指水平式、斜頂式等；工作壓力和溫度、翅片管型式和規格；管箱型式、管束長度和寬度、管排數、管程數等。

Tube bundle is the main part of air cooler, which is composed of finned tube, tube box and frame. It is an independent structural whole. Its basic parameters include tube bundle type, horizontal type and inclined top type; working pressure and temperature, type and specification of finned tube; tube box type, length and width of tube bundle, number of tube rows, number of tube passes, etc.

螺旋翅片管是一種具有螺旋形翅片的高效傳熱元件。它的傳熱面積為光管的幾倍至幾十倍，能強化傳熱，降低流動阻力，減少金屬消耗量，從而提高了換熱設備的經濟性和運行可靠性。目前，螺旋翅片管已在各種鍋爐中廣泛使用。螺旋翅片管可采用多種方法制造，目前，用于鍋爐、壓力容器等換熱設備上的翅片管主要有以下幾種制造方法:高頻電阻焊螺旋翅片管、釬焊螺旋翅片管和整體螺旋翅片管。詳細介紹了螺旋翅片管的制造方法、性能評價指標、應用以及整體型螺旋翅片管的優勢等。

Spiral finned tube is an efficient heat transfer element with spiral fins. Its heat transfer area is several to dozens times of that of smooth tube, which can strengthen heat transfer, reduce flow resistance and metal consumption, thus improving the economy and operation reliability of heat exchange equipment. At present, spiral finned tube has been widely used in various boilers. Spiral finned tube can be manufactured by various methods. At present, the fin tube used in heat exchange equipment such as boiler and pressure vessel mainly has the following manufacturing methods: high frequency resistance welding spiral finned tube, brazed spiral finned tube and integral spiral finned tube. The manufacturing method, performance evaluation index, application and advantages of integral spiral finned tube are introduced in detail.