Gas injection boiler using the emulsifying coke mortar combustion device

A technology of a combustion device and a steam injection boiler, which is applied to steam boilers, water-tube steam boilers, and combustion with various fuels, etc., can solve the problems of not reaching the melting point of emulsified coke slurry ash, ash, high manufacturing cost, and energy waste. , to achieve the effect of continuous and effective liquid slag removal, reduction of nitrogen oxides, and stable combustion conditions

Inactive Publication Date: 2007-08-22
广州迪森热能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above analysis that, firstly, the backfired coal-water slurry liquid slagging combustion furnace is not suitable for the combustion of emulsified coke slurry; secondly, the combustion chamber temperature of the backfired coal water slurry liquid slagging combustion furnace is still low The ash melting point of the emulsified coke slurry ash cannot be reached, and the emulsified coke slurry ash cannot be liquefied; finally, the combustion chamber structure of the reverse combustion type coal-water slurry liquid slagging combustion furnace is complicated, and the manufacturing cost is high
[0007] In addition, in order to make the system operate continuously and normally, the slag receiving device at the lower part of the burner must be replaced in time, and the liquid slag also contains a large amount of waste heat that can be used. If the liquid slag is directly flowed into the slag receiving device, it will cause waste of energy
[0008] Finally, the steam dryness of the steam injection boiler can only be maintained at about 80% at present, and cannot reach 100%.

Method used

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  • Gas injection boiler using the emulsifying coke mortar combustion device
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  • Gas injection boiler using the emulsifying coke mortar combustion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Please refer to Fig. 1 and Fig. 2, the steam injection boiler of the present invention includes a boiler body and an emulsified coke slurry combustion device. Wherein, the boiler body includes a furnace 402 , a steam pipe 405 coiled inside the furnace 402 , and a smoke outlet 408 opened on the end wall of the furnace 402 away from the emulsified coke slurry combustion device. The emulsified coke slurry combustion device includes a shell 10, an emulsified coke slurry burner 70, an oil burner (not shown in the figure) and a gas burner (not shown in the figure). The emulsified coke slurry combustion device communicates with the furnace 402 .

[0053] Wherein, the steam pipe 405 extends from the furnace 402 to the side wall of the emulsified coke slurry combustion device and then returns to the furnace 402 . In this embodiment, the steam pipe 405 is folded fifteen times in the side wall of the emulsified coke slurry combustion device. Specifically, those portions of the s...

Embodiment 2

[0074] Please refer to Fig. 5 and Fig. 6, as another embodiment of the present invention, it is similar to Embodiment 1, the difference is:

[0075] The opening area of ​​the liquid slag outlet 66 on the inner wall of the side wall 60 is approximately equal to one-twentieth of the cross-sectional area of ​​the combustion space 30 .

[0076] The vertical distance between the inner wall of the front end wall 20 and the inner wall of the rear end wall 40 is 1.5 times the inner diameter of the combustion space 30 .

[0077] The diameter of the outlet 44 is about half of the inner diameter of the combustion space 30 , and a conical transition chamber 48 is formed between the outlet 44 and the side wall 60 of the housing 10 . That is, a flared opening is formed on the rear end wall 40 .

[0078] There are four emulsified coke slurry burners 70, and the four emulsified coke slurry burners 70 are respectively installed on the front end wall 20, and are distributed at equal intervals ...

Embodiment 3

[0086] As another embodiment of the present invention, it is similar to Example 1, except that:

[0087] The boiler body includes three steam pipes 405 coiled in the furnace 402, and each steam pipe 405 turns back five times in the side wall 60 of the emulsified coke slurry combustion device.

[0088] The steam injection boiler using the emulsified coke slurry combustion device is provided with two liquid slag outlets 66 of the same size distributed at intervals, and the opening area of ​​each liquid slag outlet 66 on the inner wall of the side wall 60 is approximately equal to the cross-sectional area of ​​the combustion space. one-thirtieth.

[0089] The two liquid slag outlets 66 are surrounded by the same transition cavity 666 and are connected to the slag holding space 505 of the same slag discharge vehicle 500 .

[0090] The vertical distance between the inner wall of the rear end wall 40 and the inner wall of the front end wall 20 is 4 times the inner diameter of the c...

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PUM

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Abstract

The present invention discloses a steam-injecting boiler adopting emulsified coke slurry combustion equipment. It includes boiler self-body and emulsified coke slurry combustion equipment. Said boiler self-body includes furnace cavity, at least one steam pipe set in the furnace cavity interior and smoke outlet cut on one end wall far-separated from the emulsified coke slurry combustion equipment. Said emulsified coke slurry combustion equipment includes a shell body formed from front end wall, rear end wall and side wall, a cylindrical combustion space is formed in the shell body, on the front end wall at least one emulsified coke slurry combustor, at least one oil combustor and/or at least one gas combustor are set, its rear end wall is equipped with an outlet, said outlet is communicated with furnace cavity.

Description

technical field [0001] The invention relates to a steam injection boiler, in particular to a steam injection boiler using an emulsified coke slurry combustion device. Background technique [0002] The relatively clean energy currently used by steam injection boilers is mainly oil, natural gas or coal gas, etc. However, this has greatly increased the fuel cost of steam injection boilers, seriously affecting the survival of companies that use and manufacture steam injection boilers. [0003] For this reason, those skilled in the art are working hard to develop new available energy sources. Inexpensive, efficient and clean emulsified coke slurry fuel has gradually become a new favorite in this field. The use of emulsified coke slurry fuel in steam injection boilers can not only make reasonable use of natural resources, but also reduce the fuel cost of steam injection boilers. Therefore, countries all over the world are vigorously promoting emulsified coke slurry combustion tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C1/00F23C3/00F23C5/00F23C7/00F23D23/00F22B15/00
Inventor 常厚春李祖芹马革陈永超耿生斌刘效洲
Owner 广州迪森热能设备有限公司
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