Radiant Steam Header Piping T91 Tube Furnace Applied Accurate Welded

High Temperature Radiant Steam Super Heater for Boiler Furnace industrial boilers T91 Tube
 

Industrial boilers T91 Tube Super Heater Type & Characteristics

1. The diameter of the tube is generally 30-60 mm. Convective superheater is the most commonly used, using snake-shaped tube. It has a relatively dense pipe group, which is arranged in flue gas temperature 450 - 1000 C, and is scoured horizontally and vertically by flue gas.

2. The flue gas mainly convects heat to the pipe, and some radiation absorbs heat. The screen superheater is composed of multiple tube panels, which are arranged at the upper part of the furnace or at the outlet. It belongs to the radiation or semi-radiation superheater.

3. The former absorbs the radiation heat of the furnace flame, while the latter absorbs part of the convective heat. In power plant boilers above 10 MPa, both screen and serpentine tube superheaters are usually used to increase heat absorption. The wall superheater applied on the inner wall of the furnace is radiation superheater, which is seldom used.

4. The wall-enclosed superheater is used to form the top of the furnace and the wall of the convective flue duct in a large-capacity power plant boiler. The light furnace wall is made of insulating material. The picture shows the arrangement of several superheaters. Small capacity industrial boilers equipped with superheaters usually use convective superheaters of single-stage tubes to meet the requirements.

Maintenance Parts Super Heater Introduction
 
1. Supheater is a part of boiler that further heats steam from saturation temperature to superheated temperature.
2. It is also called steam superheater. Superheater can be divided into convection type, radiation type and semi-radiation type according to heat transfer mode, and snake-shaped tube type, screen type, wall type and enclosure type according to structural characteristics.
3. They are composed of several parallel pipes and headers for import and export.
4. Most industrial boilers are not equipped with superheaters, because many industrial production processes and living facilities only need saturated steam.
5. In power plants, locomotives and marine boilers, superheaters are usually installed to improve the circulating heat efficiency of the whole steam power plant.
 
Superheater Details
 
1. Generally 30 ~ 60 mm.The most common type of flow superheater is serpentine tube.It has a more intensive tube group, decorate in 450 ~ 1000 ℃ flue of the flue gas temperature, flue gas of vertical and lateral erosion.
2. The flue gas mainly transfers the heat to the pipe by convection, and some of the heat is absorbed by radiation.The plate-type superheater consists of a plurality of tube screens, arranged in the upper part of the furnace or at the outlet, belonging to the radiation or semi-radiation type superheater.
3. The former absorbs radiant heat from the furnace flame, while the latter also absorbs some convection heat.In power station boilers above 10 mpa, both screen type and serpentine type superheater are commonly used to increase heat absorption.
4. The wall superheater applied on the inner wall of the furnace is radiant superheater, which is seldom used.The wall-mounted superheater is used in the large capacity power station boiler to form the wall of the furnace top and convection flue.The picture shows the arrangement of several superheater.The small capacity industrial boilers with superheater can meet the requirements only with single stage superheater.

Super Heater Types

1. A radiant superheater is placed directly in the combustion chamber.
2. A convection superheater is located in the path of the hot gases.
3. A separately fired superheater, as its name implies, is totally separated from the boiler.
 
Technical Parameter:

After bending