High-temperature chimney with flue gas corrosion prevention function

Abstract

The invention discloses a high-temperature chimney with a flue gas corrosion prevention function. The high-temperature chimney comprises a high-temperature chimney body. A cleaning pipeline is fixedly connected to one side of the bottom end of the high-temperature chimney body, and a flue gas inlet pipeline is fixedly connected to the bottom of the side, away from the cleaning pipeline, of the high-temperature chimney body. One side of the high-temperature chimney body is fixedly connected with a protection box at the top of the flue gas inlet pipeline. A limiting device is arranged and comprises a first movable plate, a second movable plate and an open groove. The limiting device can play a certain role in slowing down high-temperature flue gas. The high-temperature flue gas enters the high-temperature chimney body along the flue gas inlet pipeline and can drive a rotating wheel to rotate, the rotating wheel drives a transmission shaft to rotate, and the energy contained in the high-temperature flue gas is fully utilized. The high-temperature flue gas is simultaneously cooled through a first condensing device and a condensate pipe at the bottom of the limiting device. The cooling effect of the high-temperature flue gas is improved, and therefore corrosion of the high-temperature flue gas to the inner wall of the high-temperature chimney body is reduced.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion chimneys, in particular to a high-temperature chimney with the function of preventing flue gas corrosion. Background technique [0002] A high temperature chimney is a structure that provides ventilation for hot flue gases or smoke from devices such as boilers or furnaces. Chimneys are usually vertical, or as close to vertical as possible, to allow for a smoother flow of gases. The height of a chimney affects its ability to transport flue gases to the outside environment through the stack effect. Often in the case of chemically corrosive outputs, sufficiently high stacks can facilitate partial or complete self-neutralization of airborne chemicals before they reach ground level, thereby reducing environmental contamination. There is no strict temperature limit for high-temperature corrosion. It is generally believed that when the working temperature of a metal reaches 30% to 40% of its mel...

AI Technical Summary

Problems solved by technology

[0003] The existing high-temperature chimney, in the process of use, the high-temperature flue gas will quickly pass through the condensing device, resulting in a weak condensation effect of the condensing device on the high-temperature flue gas, because the high-temperature corrosion is repeated, it will repeatedly oxidize the pipe wall Thin, may eventually lead to the phenomenon of pipe burst, so it is necessary to efficiently cool the high-temperature flue gas

Images