Multi-head efficient pre-mixing type combustion system of ground flare

A ground torch and combustion system technology, applied in the direction of burner, combustion method, combustion type, etc., can solve the problems of unsatisfactory premixing effect and affecting combustion effect, and achieve the purpose of making up for the lack of primary air, reliable flame stabilization and flame transfer, The effect of increasing the secondary contact area

Active Publication Date: 2013-01-30
JIANGSU SUNPOWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the premixing effect of the existing ground premixed flare gas burner is not ideal and thus affects the combustion effect, and to design a premixing ratio as high as 50-95%, and the primary air coefficient is 15-125% Multi-head high-efficiency premixed combustion system for ground flare

Method used

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  • Multi-head efficient pre-mixing type combustion system of ground flare
  • Multi-head efficient pre-mixing type combustion system of ground flare
  • Multi-head efficient pre-mixing type combustion system of ground flare

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 1-3 , as shown in 8-11.

[0044] A multi-head high-efficiency premixed combustion system for ground torch, which includes a main gas transmission pipe 2, the gas transmission main pipe 2 is connected with at least two lower gas distribution branch pipes 3 and at least two upper gas distribution branch pipes 4, and the exhaust gas enters the pipeline It is divided into two parts, one part enters the pre-mixing nozzle through the lower air distribution branch pipe 3, and the entrained part of the air enters the pre-mixing chamber for mixing and then performs pre-mixed combustion; the other part directly enters the top annular nozzle of the gas transmission main pipe 2 through the upper air distribution branch pipe for diffusion combustion. Nozzles 15 ( figure 2 ), the nozzle 15 can be a common nozzle or a Figure 8 , 9 The shown cross-shaped nozzle is provided with spray holes 47 on the upper ends 46 of the four arms 45 of the cross-shaped nozzle, and...

Embodiment 2

[0047] Such as Figure 4-5 shown.

[0048] The difference between the present embodiment and the first embodiment lies in the fixing method of the premixing chamber 5. The first embodiment is connected to the main gas pipeline 2 through a support plate 10, while the premixing chamber of the present embodiment is connected to the lower assembly through the triangular support frame 28. Air bronchus 3 connected ( Figure 4 ),and Figure 4 The schematic diagram of the matching burner is as follows Figure 5 shown.

Embodiment 3

[0050] Such as Figure 6-7 shown.

[0051] The difference between this embodiment and Embodiments 1 and 2 is that the connection mode between the lower gas distribution branch pipe 3 and the gas transmission main pipe 2 is changed from a horizontal connection to an inclined lower gas distribution pipe 32, 33 connected obliquely. Image 6 The angle of inclination in is 45 degrees, and it can be designed as other angles, such as 30 degrees, 60 degrees, etc., according to actual needs. Image 6 The equivalent schematic is as Figure 7 shown.

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Abstract

The invention discloses a multi-head efficient pre-mixing type combustion system of a ground flare. The multi-head efficient pre-mixing type combustion system of the ground flare comprises an air conveying header pipe (2), wherein the air conveying header pipe (1) is connected with at least two lower air distributing branch pipes (3) and at least two upper air distributing branch pipes (4); each lower air distributing branch pipe is provided with a nozzle (15); each nozzle is provided with a pre-mixing chamber (5) which is composed of a gradually shrinking air inlet pipe (6) and a cylindrical pipe; the gradually shrinking air inlet pipe (6) is hooded on each nozzle; the small end of each gradually shrinking air inlet pipe (6) is communicated with the lower end of each cylindrical pipe; the upper end of each cylindrical pipe is a pre-mixed air outlet (7) and is provided with a lighter (11); an air outlet end of each air distributing branch pipe is communicated with an annular pipe (8); the annular pipe is provided with a spraying hole (9); a top annular pipe (13) is arranged at the outlet end of the air conveying header pipe; the top annular pipe is communicated with a steam conveying pipe (12); and the top annular pipe is provided with a steam nozzle (14) for adding the mixed air and improving smoke-removing performance. The multi-head efficient pre-mixing type combustion system of the ground flare, disclosed by the invention, has the advantages of improving pre-mixing proportion and improving combustion efficiency.

Description

technical field [0001] The invention relates to petrochemical equipment, in particular to a flare gas combustion device, in particular to a ground flare multi-head high-efficiency premixed combustion system. Background technique [0002] At present, petrochemical plants and oil refining plants process a large amount of hydrocarbons, and it is inevitable to discharge a considerable amount of flammable and explosive materials during normal production and accidents. In order to prevent fire and explosion accidents and ensure equipment and personal safety, all must Set up a flare system to deal with the discharged flammable and explosive substances. The flare system is composed of flare gas collection pipe network and flare device. Generally speaking, the branch pipes of each flare flow into the flare gas main pipe, and the flare gas is sent to the flare outside the bounded area through the main pipe. [0003] The main function of the torch is to safely transport and burn off ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/46F23D14/58
Inventor 郭宏新何松刘丰马明张韬李逸峰赵志红
Owner JIANGSU SUNPOWER TECH
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