Water-cooled wall pipe group and arrangement method thereof

Abstract

The invention discloses a water-cooled wall pipe group and an arrangement method thereof, and relates to the technical field of arrangement of cooling water pipes at the position of a dish-shaped sealing head of a boiler. The dish-shaped sealing head of the boiler is divided into a plurality of spaces, and a group of water-cooled wall pipes is installed in each space to form the dish-shaped water-cooled wall pipe group; each group of water-cooled wall pipes comprises a plurality of arc-shaped water pipes, the arc-shaped water pipes are arranged in a single layer from bottom to top according tothe curved path of a side wall of the dish-shaped sealing head, and the upper and lower adjacent arc-shaped water pipes are sequentially connected end to end; the upper ports of the water-cooled wallpipes are connected with water outlet pipes, and the lower ports of the water-cooled wall pipes are connected with water inlet pipes; and gaps for placing the water outlet pipes are reserved among the water-cooled wall pipes, and water outlets of the water outlet pipes are arranged at the upper side positions of water inlets adjacent to the water inlet pipes, so that pipeline planning and management are facilitated. According to the water-cooled wall pipe group and the arrangement method thereof, flow distribution of working media in the water-cooled wall pipes is more reasonable, the risk ofpipe explosion accidents of a water-cooled wall is reduced, meanwhile, the single group of water-cooled wall pipes is easier to maintain and overhaul, assembling and disassembling are facilitated, and the manufacturing and maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of arrangement of cooling water pipes at the position of the dished head of the boiler, in particular to a water wall tube group and an arrangement method thereof. Background technique [0002] In the prior art, the water-cooled wall pipes are generally formed by a row of prefabricated steel pipes connected sequentially from end to end. The water-cooled wall pipes are laid on the inner wall of the furnace, and the steel pipes of the water-cooled wall pipes are filled with cooling water, which is mainly used to absorb the heat in the furnace. The radiant heat released by the flame or high-temperature flue gas flows out of the water-cooled wall tube through the heat-absorbed water. Therefore, the water-cooled wall tube has the function of cooling and protecting the furnace wall, and is often used in large-scale equipment such as boilers, ironmaking furnaces, and steelmaking furnaces. Among them, the structural...

AI Technical Summary

Problems solved by technology

Especially the arrangement of the water-cooled wall tubes at the position of the dished head of the boiler is even more difficult

The existing dish-shaped head water-cooled wall tube is a ring-shaped radial structure, leaving a gap in the middle, and the cooling effect is poor

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