Chimney barrel 40 1 0 0 35 250 What does it mean

40: chimney height;

Top outlet inner diameter;

basic wind pressure; 250: flue gas temperature.

What does chimney rice mean.

Dear, I'm glad to answer for you; A chimney is a structure that provides ventilation for hot flue gas or smoke from boilers, furnaces, stoves, or fireplaces. The chimney is usually vertical, or as close to vertical as possible, to ensure a smooth flow of gases, with air drawn into what is known as chimney combustion or the chimney effect. The space in the chimney is called the flue.

Chimneys can be found in buildings, steam locomotives and boats. The height of the chimney affects its ability to transport flue gases to the outside environment through the chimney effect. In addition, the use of chimneys at high altitudes can reduce the impact on the surrounding environment.

In the case of chemically corrosive output, a chimney high enough can allow airborne chemicals to partially or completely self-neutralize before reaching ground level. Dispersion of contaminants over a larger area can reduce their concentrations and facilitate compliance with regulatory limits.

The high chimney is built in the following way, and there is no need to build scaffolding of the same height.

1. Design and assembly of activity operation

Before construction, prepare several pieces of wood with a thickness of 60mm and a length smaller than the inner diameter of the cylinder wall and 4 L80 8 angle steels with a length greater than the diameter of the cylinder wall. During construction, the angle steel is first placed on the masonry cylinder wall, and then the wooden board is horizontally spread on the angle steel and tied firmly, forming an activity operation for construction. Each masonry moves upwards up to the top of the chimney (the length of the planks varies with the inner diameter of the chimney wall).

2. Design and assembly of vertical transportation system:

The vertical transportation system is mainly composed of 1 3t electronically controlled winch, 1 lever and 1 2t pulley. The lever is a 108, 6m long steel pipe with a wall thickness, which is mainly used for the support of material transportation. At the top of the lever, a 20 "S" shaped steel hook is welded and installed with a 2t pulley for the installation of the winch wire rope; At the bottom of the 2m down part of the welding of several "S" shaped steel hooks, after the cylinder begins to install the ladder, the "S" shaped steel hook at the bottom of the lever is placed on the side of the ladder, and is tied firmly with wire or rope respectively, and the barrel body moves up once for each masonry until the chimney masonry is completed.

The vertical transportation system should be equipped with complete safety protection devices (such as lifting capacity and lifting height limiting, braking, signaling and other devices, emergency safety switches, etc.).