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convection burner

A technology of burners and combustion appliances, which is applied in the directions of burners, combustion chambers, gas fuel burners, etc., can solve the problems of difficulty in assembly of flow burners, cost, etc.

Inactive Publication Date: 2015-08-12
BAYER AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the assembly of a corresponding convection burner consisting of different parts causes great difficulties and costs, especially when it is desired to use structures as small as possible and they are to be manufactured in mass production

Method used

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Embodiment Construction

[0039] as in Figure 1-5 As shown in , the convection burner of the invention has three substrates, in the present case a lower substrate 1 (made of borosilicate glass), a middle substrate 2 (made of silicon) and an upper substrate Substrate 3 (made of borosilicate glass). Channels 4 are arranged in the central substrate 2 , which are oriented in a star-shaped manner towards the combustion chamber 5 . Gas flows into or out of the combustion chamber 5 correspondingly in the direction of the arrow. In this case, the direction of flow of the fuel gas is indicated with "B", the direction of flow of the oxidant with "O" and the direction of flow of exhaust gas with "A". exist figure 1 In the case of the embodiment of , correspondingly two gas streams collide, correspondingly two oxidant streams collide and correspondingly two oppositely directed exhaust gas streams A leave the combustion chamber 5 . In this way, the momentum of the flame amounts to zero.

[0040] exist figur...

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Abstract

Counterflow burner having a combustion chamber (5) to which combustible gas (B) and an oxidising agent (0) can be fed from opposite sides, having three planar substrates (1, 2, 3) which are interconnected, lying one above the other, the middle substrate (2) having the combustion chamber (5), from which passages (4), lying in the plane of the substrate, lead to the edge, the upper substrate (3) and the lower substrate (1) being closed, and at least the middle substrate (2) is produced using methods of microsystem technology.

Description

technical field [0001] The invention relates to a convection burner (Gegenstrombrenner) with a combustion chamber (Brennkammer) into which combustion gas (Brenngas) and oxidant (Oxidationsmittel) can be supplied from opposite sides (von entgegen gesetzten Seiten). Background technique [0002] When gas and oxidant (eg hydrogen and oxygen) collide from opposite directions, their impulses (Impulse) at least partly cancel. This results in a flame shape that can be formed not only elongately but also spherically. This is not the case with premixed flames, where the two gases flow essentially in one direction. Diffusion flames are likewise less advantageous because diffusion has to take place there. The flame also has a distance from the nozzle so that only less heat is discharged via the nozzle. Lower gas velocities, in particular lower exhaust gas velocities, can also be achieved, whereby heat losses (due to forced convection) are reduced. [0003] Here, it all helps to inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23M5/00
CPCF23N2041/16F23C2900/9901F23C2900/03001F23C99/00F23D14/24F23R3/28G01N21/72F23M5/00F23N2241/16
Inventor J·米勒W·凯珀斯
Owner BAYER AG