A Safer and Reasonable Air Duct Structure on the Top of Waste Heat Furnace
A waste heat furnace, a reasonable technology, applied in steam boilers, fluid heaters, steam boiler accessories, etc., can solve the problems of low service life and easy deformation, and achieve the effect of increasing service life, eliminating potential safety hazards, and evenly distributing cold air
Active Publication Date: 2018-02-16
ZHISHENG CHEM
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Problems solved by technology
[0005] The invention provides a safer and more reasonable air duct structure at the top of the waste heat furnace, the main purpose of which is to overcome the defects of easy deformation and low service life of the existing air duct arrangement structure
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[0020] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
[0021] refer to figure 1 with figure 2 . A safer and more reasonable air duct structure at the top of the waste heat furnace, including a frame body 1 and a plurality of air tubes 2 arranged at intervals on the frame body 1, and a plurality of ventilation holes 3 are opened on the side wall of each air tube 2, And the air pipe 2 is communicated with a plurality of branch pipes 4 formed by extending outwards from the ventilation holes 3. The branch pipes 4 include a main branch pipe 5 formed by extending the ventilation holes 3 to the outside, and The different-diameter branch pipe 6 arranged side by side of the main body branch pipe 5 and the elbow 7 for connecting the main body branch pipe 5 and the different-diameter branch pipe 6, the main body branch pipe 5 is provided with a first air outlet 50, and the different-diameter branch pipe 6 is a A tub...
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The invention discloses a safer and more reasonable waste heat furnace top air pipe structure which comprises a frame body and multiple air pipes which are arranged on the frame body at intervals. Multiple ventilation holes are formed in the side wall of each air pipe. Each air pipe communicates with multiple branch pipes which are formed in the manner that the corresponding ventilation holes extend towards the outer side. Each branch pipe comprises a main branch pipe body formed in the manner that the corresponding ventilation hole extends towards the outer side, a special-diameter branch pipe body arranged parallel to the main branch pipe, and a bend used for communicating with the main branch pipe body and the special-diameter branch pipe body. A first air outlet is formed in each main branch pipe body. By means of the safer and more reasonable waste heat furnace top air pipe structure, the number of the air outlets needing to be formed in the main branch pipe bodies can be reduced, the integral strength of the main branch pipe bodies is improved, so that it can be ensured that cold air flows in the whole branch pipes, the service life of the air pipes is prolonged, meanwhile, safety running of a furnace top can be protected more effectively, potential safety hazards are eliminated, and production accidents are reduced.
Description
technical field [0001] The invention relates to the arrangement of air pipes at the top of a combustion furnace of a waste heat recovery boiler, in particular to a safer and more reasonable air pipe structure at the top of a waste heat furnace. Background technique [0002] In most nitrogen fertilizer industries, most of them will be equipped with a waste heat recovery boiler, which is mainly used to recover synthetic ammonia exhaust gas and gas blowing gas, and use the recovered heat for heating and power generation. [0003] Most of the waste heat boiler combustion furnace top adopts air pipe distribution, which has two main functions: 1. Increase the oxygen content in the combustion furnace to ensure that the gas blowing gas and synthetic ammonia exhaust gas can be fully burned here. 2. Protect the top of the furnace from burning out due to excessive local temperature. [0004] However, there are defects in the current air duct layout structure. The end of the branch pip...
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IPC IPC(8): F22B37/00F24H9/00
CPCF22B37/00F24H9/00
Inventor 谢燕武
Owner ZHISHENG CHEM