Novel flue gas outlet device of absorption tower

Abstract

The invention discloses a novel flue gas outlet device of an absorption tower. The device comprises a circular absorption tower wall plate, and a fixed connecting device is fixedly mounted at the upper end of the circular absorption tower wall plate; a table-shaped corner cylinder is fixedly installed at the upper end of the fixed connecting device, a square top cover is fixedly installed at the upper end of the table-shaped corner cylinder, a side connection round short connector is fixedly installed on the side surface of the table-shaped corner cylinder, and a round connection flange is fixedly installed at one end of the side connection round short connector. According to the invention, the circular absorption tower wall plate and the table-shaped corner cylinder are connected by arranging the fixed connecting device; the outlet device is convenient to disassemble and assemble, maintenance, cleaning and replacement efficiency is improved, flue gas in the absorption tower flows moreevenly through the table-shaped corner cylinder and the round connection flange, the outer surface area is reduced, stress is more reasonable under the effect of internal pressure of the absorption tower, the thickness of a steel plate and the thickness of the flange are reduced, cost is saved, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment equipment, in particular to a novel flue gas outlet device for an absorption tower. Background technique [0002] When choosing flue gas desulfurization equipment for thermal power plants at home and abroad, the limestone / gypsum forced oxidation system has become the preferred wet flue gas desulfurization process. The key equipment is the desulfurization absorption tower. There are many types of flue gas outlet devices for the absorption tower. Various companies Each has its own unique type. Usually, the flue gas outlet device of the absorption tower is mostly a cylindrical tower side connected to a rectangular short interface, and the outlet flange is rectangular. [0003] In the process of realizing the present invention, the inventor found that at least the following problems in the prior art have not been resolved: 1. The existing absorber flue gas outlet device is usually connected...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that at least the following problems in the prior art have not been resolved: 1. The existing absorber flue gas outlet device is usually connected by welding, which is not convenient for disassembly and installation , making the maintenance, cleaning and replacement process of the flue gas outlet device more inconvenient; 2. In the prior art, the flue gas in the absorption tower is affected by the rectangular outlet, and the flow is uneven, and the rectangular interface and flange, the pressure in the absorption tower Under the action, the force is unreasonable, and the thickness of the steel plate and flange needs to be increased, which increases the cost. In addition, the flue gas outlet device of the traditional absorption tower is made of alloy plate or carbon steel lining alloy. Due to the high hardness of the alloy, the alloy coil processing higher cost

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