Flue-type denitrification reactor

A denitrification reactor and flue-type technology, applied in the field of denitrification reactor, can solve problems such as uneven flow field and prone to ash accumulation

Active Publication Date: 2012-11-21
DATANG ENVIRONMENT IND GRP
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Problems solved by technology

[0008] In addition, in the above three force models, most of the reactor insulation materials are external (that is, the insulation material is on the outside of the reactor shell wall) so that the internal components of the reactor can be s

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, the present invention will be further described.

[0037] First analyze the stress of the reactor: the flue gas pressure inside the reactor is roughly 5.8KPa, and the design temperature is generally 400~450°C. The reactor is subjected to catalyst load, ash load, rectifier load, wind load, and temperature load , flue gas pressure and other loads. Then arrange the overall structural components of the reactor. The layout and calculation of the structural components are mainly based on the "Code for Design of Steel Structures", "Technical Regulations for Design of Smoke and Wind Coal Pipelines in Thermal Power Plants", "Design Technology for Smoke and Wind Coal Powder Pipelines in Thermal Power Plants" Complementary Design Calculation Method for Regulations” and other current norms and regulations, stress analysis calculation and design are carried out as a whole after modeling.

[0038] The reactor body needs to consider the...

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Abstract

The invention provides a flue-type denitrification reactor. A truss in the reactor is eliminated, and the load of the whole reactor borne by the truss originally is incorporated into the bearing parameter of a reactor wall panel to be designed; by increasing the thickness of the reaction wall panel, a horizontal profile steel reinforcing rib and a vertical profile steel reinforcing rib are arranged near a rectifier device layer and a catalyst supporting beam, and a horizontal angle steel reinforcing rib and a vertical angle steel reinforcing rib are arranged between the profile steel reinforcing ribs to ensure that the reactor meets the original bearing requirements, so that the layer height of the reactor is reduced, and the situation that a reactor shell does not deform is ensured. Reinforcing ribs of beams and posts are arranged at the outer side of the shell of the reactor and are covered with a heat insulation material, thereby the problems of dust accumulation and unsmooth flow field caused by the reinforcing ribs in the reactor are solved.

Description

technical field [0001] The invention relates to a denitrification reactor, in particular to a flue-type denitrification reactor, which is suitable for the reactor of SCR denitrification technology in coal-fired power stations. Background technique [0002] For the SCR (Selective Catalytic Reduction) denitrification project construction of coal-fired power plants, the reactor is the core component of the SCR device, which provides NOX and NH in the flue gas. 3 Generate N on the catalyst surface 2 and H 2 The O place, its main function is to carry the catalyst, provide space for the denitrification reaction, and at the same time ensure the smooth flow of the flue gas and the uniform distribution of the airflow, creating conditions for the smooth progress of the denitrification reaction. [0003] There are mainly two types of catalytic reactors in industrial waste gas treatment projects: fixed bed and fluidized bed. At present, fixed bed reactor is widely used, and denitrific...

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Application Information

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IPC IPC(8): B01D53/90B01D53/56
Inventor 曹东申镇肖志均
Owner DATANG ENVIRONMENT IND GRP
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