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Catalytic low-nitrogen combustion hood device and process

A low-nitrogen combustion and catalytic cover technology, which is applied in the direction of combustion, combustion type and combustion method using catalytic materials, can solve the problems affecting fuel combustion conditions and burnout effects, so as to promote complete combustion, reduce NOx content, Energy Saving Effect

Inactive Publication Date: 2018-11-27
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the current mainstream low-nitrogen combustion technology, lowering the combustion temperature is one of the important means to control the production of nitrogen oxides, but the lowering of the temperature will affect the combustion status of the fuel and affect its burnout

Method used

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  • Catalytic low-nitrogen combustion hood device and process
  • Catalytic low-nitrogen combustion hood device and process
  • Catalytic low-nitrogen combustion hood device and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. A catalytic low-nitrogen combustion hood device, such as Figure 1-2 As shown, it includes a combustion catalytic cover and a connecting piece 2. The combustion catalytic cover is installed on the nozzle of the burner through the connecting piece 2, and is used in conjunction with the burner to form a low-nitrogen combustion system.

[0033] The combustion catalytic cover is composed of a catalyst carrier 1 and a catalyst, wherein the catalyst carrier 1 is used as a main frame, the catalyst is distributed on the main frame, and the catalyst carrier is made of ceramic material.

[0034]The shape of the combustion catalytic cover is conical, so that it can cooperate with the combustion flame, and provide a good working temperature condition for the catalyst with the help of the temperature generated by the combustion flame, so as to achieve the purpose of energy saving.

[0035] The connecting piece 2 is threaded so as to connect the combustion catalytic cover 1 to the...

Embodiment 2

[0040] 1. A catalytic low-nitrogen combustion hood device, such as Figure 1-2 As shown, it includes a combustion catalytic cover and a connecting piece 2. The combustion catalytic cover is installed on the nozzle of the burner through the connecting piece 2, and is used in conjunction with the burner to form a low-nitrogen combustion system.

[0041] The combustion catalytic cover is composed of a catalyst carrier 1 and a catalyst, wherein the catalyst carrier 1 is used as a main body skeleton, and the catalyst carrier is made of catalyst capable of catalyzing CO and NO x The high-temperature-resistant material of the reaction is made of iron-copper-manganese stainless steel alloy, so that the main frame itself can also serve as a catalyst.

[0042] The shape of the combustion catalytic cover is conical, so that it can cooperate with the combustion flame, and provide a good working temperature condition for the catalyst with the help of the temperature generated by the combus...

Embodiment 3

[0048] 1. A catalytic low-nitrogen combustion hood device, such as Figure 3-4 As shown, it includes a combustion catalytic cover and a connecting piece 2. The combustion catalytic cover is installed on the nozzle of the burner through the connecting piece 2, and is used in conjunction with the burner to form a low-nitrogen combustion system.

[0049] The combustion catalytic cover is composed of a catalyst carrier 1 and a catalyst, wherein the catalyst carrier 1 is used as a main body skeleton, and the catalyst carrier is made of catalyst capable of catalyzing CO and NO x The reaction high-temperature-resistant Fe / Cu / Zn / Ce / Ti high-entropy alloy is molded, so that the main frame itself can also serve as a catalyst.

[0050] The shape of the combustion catalytic cover is flame-shaped, so that it can cooperate with the combustion flame, and provide a good working temperature condition for the catalyst with the help of the temperature generated by the combustion flame, so as to a...

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Abstract

The invention relates to a catalytic low-nitrogen combustion hood device and belongs to the technical field of low-nitrogen combustion. The device comprises a combustion catalysis hood and a connecting piece, wherein the combustion catalysis hood is arranged on a burner nozzle by the connecting piece and matched with a burner so as to form a low-nitrogen combustion system; the combustion catalysishood is composed of a catalyst carrier and a catalyst; the catalyst carrier serves as a main framework; the catalyst is distributed on the main framework; the catalyst carrier is made of a high-temperature-resistant material capable of catalyzing the reaction of CO and NOx, so that the main framework serves as a catalyst; and the combustion catalysis hood is in the shape of flame, cone and petal.According to the device disclosed by the invention, the NOx produced in the combustion process can be catalytically reduced by utilizing CO produced by imperfect combustion of fuel, so that the CO and NOx are converted into CO2 and N2. Firstly, complete combustion of the fuel is promoted, and the energy is saved; and secondly, the content of the NOx produced by combustion is further reduced, effective emission reduction is realized, and the dual effects of saving energy and reducing emission are achieved.

Description

technical field [0001] The invention belongs to the technical field of low-nitrogen combustion, and in particular relates to a catalytic low-nitrogen combustion hood device and a process. Background technique [0002] my country's air pollution problem is becoming more and more serious, and the state's control of pollutant emissions is becoming more and more stringent. For the control of nitrogen oxide emissions, there are currently many methods, which are mainly divided into low-nitrogen combustion technology during combustion and post-combustion nitrogen oxide removal technology. For the current mainstream low-nitrogen combustion technology, reducing the combustion temperature is one of the important means to control the production of nitrogen oxides, but the reduction of temperature will affect the combustion status of the fuel and affect its burnout. In the face of increasingly stringent emission limits, further development of new high-efficiency low-nitrogen combustion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C13/08
Inventor 付加鹏马春元周滨选王涛程星星
Owner SHANDONG UNIV
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