Superheater for waste heat boiler of waste incineration system

Abstract

The invention discloses a superheater for a waste heat boiler of a waste incineration system. A superheater body is arranged in a vertically arranged flue; a superheater pipeline is transversely arranged, an input end of the superheater pipeline is connected with a steam pocket, and an output end of the superheater pipeline is used for outwards outputting steam; the superheater body consists of a first superheater, a second superheater and a third superheater; an inlet header of the first superheater is connected with a saturated steam output pipeline of the steam pocket; an outlet header of the first superheater is connected with an inlet header of the second superheater through a first desuperheater; an outlet header of the second superheater is connected with an inlet header of the third superheater through a second desuperheater; and an outlet header of the third superheater is connected with a main steam pipeline. The superheater disclosed by the invention has the advantages of being capable of effectively reducing content of dioxin in flue gas, being beneficial for reducing difficulty of treating flue gas at a later period; and the superheater is energy-saving, efficient, can effectively improve thermal conversion efficiency, and ensures steam supply amount of steam power generation.

Description

technical field [0001] The invention relates to the field of waste heat boilers, in particular to a superheater in the waste heat boiler. Background technique [0002] The waste heat boiler is a traditional energy-saving equipment with a wide range of applications. In the field of waste incineration, due to the particularity of its flue gas, there is no special waste heat boiler suitable for the field of waste incineration, especially the superheater part of the waste heat boiler. If the smoke If the gas cools down too quickly in this part, a large amount of dioxin may be produced, which is not conducive to the treatment of the exhaust gas. Contents of the invention [0003] The technical problem to be solved by the present invention is to realize an energy-saving and high-efficiency waste heat boiler superheater structure capable of suppressing the generation of dioxins. [0004] In order to achieve the above object, the technical solution adopted by the present inventio...

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Problems solved by technology

[0002] The waste heat boiler is a traditional energy-saving equipment with a wide range of applications. In the field of waste incineration, due to the particularity of its flue gas, there is no special waste heat boiler suitable for the field of waste incineration, especially the superheater part of the waste heat boiler. If the smoke If the gas cools down too quickly in this part, a large amount of dioxin may be produced, which is not conducive to the treatment of exhaust gas

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