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Pulse detonation device for igniting a coal burning system

A technology of pulse detonation and fuel system, which is applied in the direction of steam generation method using pressure combustion, burner burning powder fuel, combustion chamber, etc.

Inactive Publication Date: 2012-08-29
BHA ALTAIR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

a pulse detonation device constructed and arranged to introduce a pulse detonation wave into the combustor body to ignite at least one fuel

Method used

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  • Pulse detonation device for igniting a coal burning system
  • Pulse detonation device for igniting a coal burning system
  • Pulse detonation device for igniting a coal burning system

Examples

Experimental program
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Effect test

Embodiment Construction

[0057] refer to Figure 1 to Figure 3 , a coal combustion system according to an exemplary embodiment is generally indicated at 2 . The coal combustion system 2 includes a coal combustion furnace / boiler 4 with a heat exchange system or burner 8 . The combustor 8 transfers heat to a working fluid flowing to an energy conversion system (not shown). Energy conversion systems are typically coupled to powered components such as generators, pumps, and the like. The energy conversion system converts thermal energy from the working fluid produced in the boiler 4 into mechanical rotational energy, which is used to operate the powered components. Products of combustion from combustor 8 flow into air heater 10 , to emission control device 12 and are directed by fan 16 to exhaust duct 14 .

[0058] Thermal energy is input into the working fluid by heat directed towards the burner 8, which is generated by burning pulverized or pulverized coal. According to the exemplary embodiment, boi...

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PUM

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Abstract

A pulse detonation coal burner has a burner body 44 with an inlet 46, an outlet 47, and a fuel introduction system 54 coupled to the burner body inlet. The fuel introduction system supplies at least one fuel into the burner body, and a pulse detonation device 80 is coupled to the burner body 44 and in use provides a pulse detonation wave into the burner body 44 to ignite the at least one fuel. The pulse detonation coal burner can be utilized in a coal burning furnace / boiler arrangement (4 ), and the coal may be pulverized and supplied from a pulverizing device (70). The coal burner may also include a swirler / spin vanes 65, 66, which impart a swirl to pulverized fuel and air mixture entering the furnace / boiler.

Description

technical field [0001] The subject matter disclosed herein relates to coal combustion systems, and more particularly to pulse detonation devices for coal combustion systems. Background technique [0002] Many power generation systems use pulverized coal as fuel. A boiler fired with pulverized coal generates thermal energy by burning pulverized coal (powdered coal, coal dust). The thermal energy is used to heat the fluid and generate steam which is employed to drive a turbine. Existing coal combustion systems introduce pulverized coal into one or more burners. The coal burns to release heat energy. Pulverized coal is typically introduced to the burner through a mechanical feed system that sends the raw coal to the pulverizer and then to the burner(s). In such systems, pulverized coal is supplied / distributed to coal conduits located within the burner(s). Typical systems employ a number of feeders and pulverizers to establish an even distribution of pulverized coal to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/00
CPCF22B1/18F23C15/00F22B1/22F23D11/42F23R7/00
Inventor 张天璇P·M·马利D·K·莫伊达R·W·泰勒
Owner BHA ALTAIR