Skip to main content

The finned tubes in the boiler

The finned tubes in the boiler

Boiler with finned tube heat exchanger components as a long-term work in high temperature flue gas conditions, such as heat exchangers used in boiler tube boiler with finned harsh environment, high temperature and pressure and in a corrosive atmosphere, which requires finned tube boiler It should have a high performance.

Fin tube boiler performance:

1) corrosion resistance (Anti-corrosion)

2) wear (Anti-wear)

3) low contact resistance (lower contact resistance)

4) high stability (Higher Stability)

5) anti-fouling ability (Anti-fouling ability)

Fin tube boiler situation:

China Steel Industry Association and other experts believe that the boiler with finned tubes steel market downturn, mainly due to sharp decline in steel demand, while steel serious excess capacity. Weak demand in the domestic market, while the high-frequency welding finned tubes are more optimistic in the export market. Customs recently released statistics show that the first quarter of this year, China exported 5.14 million tons of steel, down 54.9 percent. Recently, the EU announced that Chinas exports of seamless steel tubes to impose provisional anti-dumping duties, the boiler will further affect the rise of finned tubes in international trade protectionism against Chinese steel exports used. Production of boilers with finned tubes commonly used materials are carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum, and titanium. There are also some non-metallic materials, such as graphite, ceramics, teflon and the like. It should be based on the working pressure, temperature and corrosive media appropriate choice of materials design.

High-frequency welding serrated finned tubes

High-frequency welding serrated finned tubes

Comments

Popular posts from this blog

What is tube sheet layout?

What is tube sheet layout? A tube sheet is a component used in shell and tube heat exchangers and other types of heat transfer equipment. It is a flat plate with holes drilled in it, through which tubes are inserted and secured. The tube sheet serves as a barrier between the two fluids, allowing heat to be transferred from one to the other. The layout of the tube sheet depends on the design of the heat exchanger, which includes the number of tubes, the size of the tubes, and the spacing between the tubes. The layout is typically determined using computer-aided design (CAD) software, which can optimize the placement of the tubes to achieve the desired heat transfer performance. In general, the tubes are arranged in a triangular or square pattern on the tube sheet. The triangular pattern is often preferred because it provides better support for the tubes and reduces the risk of vibration and damage. The spacing between the tubes is also important, as it affects the flow rate and pressure

Finned tube bundle|Finned pipe bundle

1. What is a finned tube bundle? Finned tube bundle composed of multiple 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. 2. What is the composition of the finned tube bundle? Finned tube (multiple tubes): basic element of heat transfer. Tube box (header) or tube plate: the header, elbow or steel plate connecting the two ends of the fin tube. When the finned tube is connected with the header or tube sheet, the spacing between the finned tubes is fixed, and the tube box forms a continuous flow channel for the fluid in the tube. Frame: support and fix the whole finned tube bundle. 3. Finned tube bundle arrangement? In a  finned tubes bundle , the selection of fin tube arrangement is crucial. There are two types of arrangement: staggered and sequential. The so-called staggered arrangement refers to the cross arrangement of pipes in the air flow direction, while the in-line arran

What is heat exchange tube sheet?

What is heat exchange tube sheet? A heat exchange tube sheet is a component used in heat exchangers, which are devices that transfer heat from one fluid to another. The tube sheet is typically a flat, circular plate that separates the two fluid streams and contains holes through which the heat exchange tubes pass. The tubes are typically sealed into the tube sheet by welding or expansion, and the sheet is often made of materials such as carbon steel, stainless steel, or titanium. The purpose of the tube sheet is to provide a rigid support structure for the heat exchange tubes and to ensure that the tubes are properly aligned and spaced for efficient heat transfer. The tube sheet also serves to contain the fluid streams and prevent them from mixing, which could reduce the efficiency of the heat exchange process. Tube sheets can be designed for various types of heat exchangers, such as shell and tube, double pipe, and plate heat exchangers. The design of the tube sheet is typically based