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Jet deflection type low-NOX combustor

A burner and jet technology, applied in burners, burners burning powder fuel, combustion types, etc., can solve the problems of easy corrosion and slagging of water-cooled tubes, poor adaptability to coal types and loads, and poor combustion stability. Overcome the poor adaptability of coal type and load, avoid easy corrosion and slagging, and improve combustion stability

Pending Publication Date: 2020-11-24
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, pulverized coal boiler low NO X There are a series of technical problems in burner technology, such as: poor combustion stability, low combustion efficiency, easy corrosion and slagging of water-cooled pipes, poor adaptability between coal types and loads, and suppression of NO X The generated effect is not ideal, etc.

Method used

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  • Jet deflection type low-NOX combustor
  • Jet deflection type low-NOX combustor
  • Jet deflection type low-NOX combustor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] see Figure 1-4 , a jet deflected low NO X The burner includes a burner housing 1, a deflection baffle 2, an adjustment member and a peripheral air duct 5, and an inlet and an outlet are arranged on the burner housing 1 along the gas conveying direction; the number of the deflection baffles 2 is Two and rotatably arranged on both sides of the outlet of the burner housing 1, the number of the adjustment member is two and symmetrically rotatably arranged on the inner wall surface on both sides of the outlet of the burner housing 1 and respectively deflected with the corresponding The baffles 2 are set in linkage and are used to adjust the opening and closing angles of the two deflection baffles 2 relative to the outlet to adjust the deflection angle of the fuel jet. The perimeter air duct 5 is arranged on the inner wall of the burner housing 1 .

[0042] The adjusting member is an electric adjusting member 3 .

[0043] The electric adjusting member 3 includes a second r...

Embodiment 2

[0047] see Figure 5-8 , a jet deflected low NO X The burner includes a burner housing 1, a deflection baffle 2, an adjustment member and a peripheral air duct 5, and an inlet and an outlet are arranged on the burner housing 1 along the gas conveying direction; the number of the deflection baffles 2 is One is rotatably arranged on one side of the outlet of the burner housing 1, and the number of the adjustment member is one and is rotatably arranged on the inner wall surface of the outlet side of the burner housing 1 and is set in conjunction with the deflection baffle 2, Used to adjust the opening and closing angle of the deflection baffle 2 relative to the outlet to adjust the deflection angle of the fuel jet, the peripheral air duct 5 is arranged on the inner wall of the burner housing 1 .

[0048] The adjusting member is an electric adjusting member 3 .

[0049] The electric adjusting member 3 includes a second rotating rod and an electric transmission device (preferably a...

Embodiment 3

[0053] see Figure 9-12 , a jet deflected low NO X The burner includes a burner housing 1, a deflection baffle 2, an adjustment member and a peripheral air duct 5, and an inlet and an outlet are arranged on the burner housing 1 along the gas conveying direction; the number of the deflection baffles 2 is Two and rotatably arranged on both sides of the outlet of the burner housing 1, the number of the adjustment member is two and symmetrically rotatably arranged on the inner wall surface on both sides of the outlet of the burner housing 1 and respectively deflected with the corresponding The baffles 2 are set in linkage and are used to adjust the opening and closing angles of the two deflection baffles 2 relative to the outlet to adjust the deflection angle of the fuel jet. The perimeter air duct 5 is arranged on the inner wall of the burner housing 1 .

[0054] The adjusting part is a manual adjusting part 4 .

[0055] The manual regulator 4 includes a first rotating rod and ...

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Abstract

The invention provides a jet deflection type low-NOX combustor. The jet deflection type low-NOX combustor comprises a combustor shell, one or two deflection baffles, one or two adjustment parts and peripheral air pipes. The combustor shell is provided with an inlet and an outlet in a gas delivery direction. The peripheral air pipes are arranged on the inner wall surface of the combustor shell. Thedeflection baffles and the adjustment parts can be arranged in two ways; in the first way, the two deflection baffles are rotatably arranged on two sides of the outlet of the combustor shell, and thetwo adjustment parts are symmetrically and rotatably arranged on the inner wall surfaces of two sides of the outlet of the combustor shell and linked with the corresponding deflection baffles respectively; and in the second way, one deflection baffle is rotatably arranged on one side of the outlet of the combustor shell, and one adjustment part is rotatably arranged on the inner wall surface of one side of the outlet of the combustor shell and linked with the deflection baffle. The jet deflection type low-NOX combustor improves combustion stability and can effectively inhibit NOX generation.

Description

technical field [0001] The invention relates to the technical field of pulverized coal combustion equipment, in particular to a jet deflection low NO X burner. Background technique [0002] At present, the low NO of pulverized coal boiler X Combustion technologies mainly include: low NO X Burner technology, air staged combustion technology, fuel staged combustion technology (also known as reburning technology), flue gas recirculation technology and its combination technology, etc. Among them, pulverized coal boiler low NO X There are a series of technical problems in burner technology, such as: poor combustion stability, low combustion efficiency, easy corrosion and slagging of water-cooled pipes, poor adaptability between coal types and loads, and suppression of NO X The generated effect is not ideal, etc. [0003] In summary, there is an urgent need for a jet deflection low NO X Burner to solve the problems existing in the prior art. Contents of the invention [0...

Claims

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Application Information

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IPC IPC(8): F23D1/00F23L5/00
CPCF23D1/00F23L5/00
Inventor 陈冬林熊赞
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY