What are the pressure bearing parts of the boiler!? What are the main pressurized parts of a boiler?

The pressure-bearing parts of the boiler include all the parts of the "pot", that is, all the steam and water systems.

If the "boiler pressure parts" here refer to the hydrostatic test, combined with the upstairs, then it is: all steam pipes, valves, flanges, but also manholes, hand holes. and:

Steam drum boiler: boiler, casing, water wall tube, descending tube, convection tube bundle, buried pipe, return steam pipe, superheater, reheater, economizer, desuperheater, desuperheater, desuperheater, desuperheater, etc.

Shell boiler: furnace bracket, pot shell, tube sheet, boiler tube, joint box, steam collection box (sub-cylinder), etc.

To put it bluntly, all the walls that can be touched by water or steam are considered pressure-bearing parts.

Upstairs is more detailed, but it does not include auxiliary equipment such as water pumps.

The components included in the boiler's steam-water system are pressure-bearing parts.

The largest pressure-bearing part of the boiler should be the steam drum, which also includes the pipes, valves and other equipment through which the steam and water flow. For example, water walls, rising pipes, descending pipes, couplings, superheaters, reheaters, economizers, desuperheating water pipes, etc.

Boiler tubes, casings, water wall pipes, descending pipes, convection pipes, steam superheaters, economizers.

The pressure-bearing parts of the boiler are: furnace bladder, pot shell, tube sheet, boiler tube, connecting box, steam collection box, water wall tube, convection tube, descending tube, etc., and some boilers also have economizers, steam superheaters, etc.

Pipes, valves, feed pumps, furnaces, superheaters, economizers, etc.

Pot barrel. The pot barrel, also known as the steam drum, is made of simplified body and head (tube sheet) group welding.

Vapor water separator.

In addition to the specified parameter characteristics, the steam produced by the boiler must also ensure the quality of the steam. Steam with water will make.

Superheater fouling. In addition, it can have a negative impact on the quality of some products, so it is necessary to separate the steam from the water.

Reason. Head (tube sheet).

There are heads at both ends of the pot Jane, and the heads are spherical, ellipsoidal and oblate spherical. The stress state of the ellipsoidal head is ideal, easy to manufacture, and it is used more. The thickness of the head is generally thicker than that of the simplified body. There should be a certain distance from the bending point of the head wrench to the center line of the weld.

Container containers. The header, also known as the joint box, is made of a large diameter seamless steel pipe welded with two end caps, or by a seamless steel pipe spinning at both ends. There are hand holes at the end of the header for easy inspection and cleaning of the inside of the header.

Pull braces. The tubular sheet is often strengthened with tension braces, which can improve the strength of the tubular sheet. Reducing the thickness of the tubular sheet can also improve the stress condition of the connection between the tubular sheet and the simplified body.

The main pressure components of the fire-tube boiler: the shell, the tube sheet, the furnace sleeve, the smoke tube;

The main pressure components of the water-tube boiler: boiler barrel (steam drum), water wall, boiler tube bundle, serpentine tube, header;

All the parts in the boiler that need to withstand pressure and produce stress are pressure parts, such as the boiler (upper and lower) cylinder, water wall and its summary pipe, convection row tube, economizer, etc.