CN201273568Y - Graded wind-adjusting low-nitrogen/oxygen multi-fuel combustion combustor - Google Patents

Abstract

The utility model relates to a grading air-distributing low-nitrogen oxide multi-fuel mixed-burning burner, wherein the burner is formed through respectively sleeving and fixing a tubular oil gun tube, a primary air pipe, a gas pipe, a cold air pipe, a powdered coal pipe, a secondary air pipe and a triple air pipe in the order of each coaxial center, wherein a flame detector is arranged between a gas pipe and the primary air pipe, a secondary air whirl vane wheel and a taper-shaped secondary air shutter are arranged between the secondary air pipe and the powdered coal pipe, wherein a feed screw adjusting shaft is arranged on one side of the air shutter, an equant triple air quantity adjusting pipe is sleeved on the periphery of the triple air pipe, a triple air adjustable whirl vane wheel is arranged between a triple air taper pipe and the secondary air pipe, and a feed screw adjusting shaft is also arranged on one side of the triple air adjustable whirl vane wheel. The burner can simultaneously burn three fuels of oil, gas and powdered coal, and can respectively singly burn any one of the fuel, broadly and strongly adapts to the coal quality, can burn fuels completely, fully and more stable, can effectively reduce the yield of nitrogen and oxygen and reduce the discharge of harmful materials.

Description

Low many fuel of the nitrogen oxygen multifuel combustion burner of wind is transferred in classification

Technical field

The utility model relates to the burner of boiler, and low many fuel of the nitrogen oxygen multifuel combustion burner of wind is transferred in especially a kind of classification of combustion oil, combustion gas and three kinds of coal dusts or a certain fuel simultaneously.

Background technology

At present, the boiler-burner of common model is because fuel is single, exist some defective on the structure, just can cause burning not thorough, insufficient, this not only wastes, and can discharge many harmful materials, because it is narrower to the adaptability of ature of coal, therefore bad adaptability to this, does not also have very good solution at present.

Summary of the invention

In order to solve the problem that some boilers exist, the utility model provides a kind of classification to transfer low many fuel of the nitrogen oxygen multifuel combustion burner of wind, this burner is simultaneously combustion oil, combustion gas and three kinds of fuel of coal dust not only, and also can distinguish a certain fuel that burns separately, very wide very strong to the adaptability of ature of coal, it can make the more stable, more thorough, more abundant of fuel combustion, can effectively reduce emission of harmful substances.

The concrete scheme that its technical problem that solves the utility model adopts is: this burner is by airduct, secondary air channel, cool air hose, tertiary-air pipe, secondary wind eddy flow impeller, tertiary air is adjustable eddy flow impeller, oil gun pipe, Gas Pipe, flame detector, coal pipe and igniter are formed; It is characterized in that: this burner is fixedly formed by the order suit of an airduct, Gas Pipe, cool air hose, coal pipe, secondary air channel and each concentric of tertiary-air pipe of tubulose respectively; The oil gun Guan Youhou of tubulose is inserted into the port of an airduct forward, and concordant with port, is fixed on the place, axle center of an airduct; The tail end of airduct and Gas Pipe is connected with horizontal cold air inlet flange, wind inlet flange and fuel gas inlet flange respectively; Coal pipe is sleeved on the cool air hose periphery, and a quarter bend has been rolled at its rear portion, has formed the coal powder entrance flange; One time airduct, Gas Pipe, cool air hose, coal pipe and secondary air channel are isometrical pipe; Between Gas Pipe and 1 airduct, flame detector is housed; Between secondary air channel and the coal pipe, secondary eddy flow impeller is housed, it can change over eddy flow wind to secondary wind and spray from spout; Outside the secondary air channel tail end, but the secondary windshield plate of tapering shape of a dish axially-movable is installed, its side has the leading screw regulating shaft, by this advance and retreat, can regulate its distance of airduct tail end mouth therewith, the size that can regulate secondary air flow; The tertiary-air pipe first half is the tapering pipe, latter half of is isometrical pipe, in isometrical pipe outer race isometrical tertiary air quantity adjustable pipe is housed, one side of tertiary air quantity adjustable pipe has the leading screw regulating shaft, by its side-to-side movement, the covering that drives the air inlet of tertiary air quantity adjustable pipe is moved, and can regulate the size of tertiary air air quantity; Between tertiary air Taper Pipe and secondary air channel, the adjustable eddy flow impeller of tertiary air is installed, its side also is equipped with the leading screw regulating shaft, side-to-side movement by this leading screw regulating shaft, regulate the distance of the adjustable eddy flow impeller of tertiary air and tapering tube wall, adjustable solar term flow the length and the size variation of eddy flow ratio, can control the admixture of eddy flow wind and wind, cooling air, change the position and the size of recirculating zone, reach and regulate flame profile and make burning keep stable purpose.

Its beneficial effect is: low many fuel of the nitrogen oxygen multifuel combustion burner of wind is transferred in this classification, not only simultaneously combustion oil, combustion gas and three kinds of fuel of coal dust, and also can distinguish a certain fuel that burns separately, also very wide very strong to the adaptability of ature of coal, simultaneously, also can make the more stable, more thorough, more abundant of fuel combustion, can effectively reduce the growing amount of nitrogen oxygen, and reduce emission of harmful substances.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and the embodiments;

Accompanying drawing is a structural representation of the present utility model;

Among the figure, 1. cool air hose flange, 1 '. once wind flange, 2. flame detector, 3. oil gun pipe, 4. Gas Pipe inlet flange, 5. coal pipe inlet flange, 6. secondary windshield plate, 7. tertiary air air quantity adjustable pipe, 8. secondary wind eddy flow impeller, the 9. adjustable eddy flow impeller of tertiary air, 10. an airduct, 11. Gas Pipe, 12. igniters, 13. coal pipes, 14. secondary air channels, 15. tertiary-air pipe, 16. cool air hoses, 17. tertiary air Taper Pipes, 18. the screw mandrel regulating shaft, 19. screw mandrel regulating shafts, 20. leading screw regulating shafts.

The specific embodiment

In the drawings, this burner is by airduct 10, secondary air channel 14, cool air hose 16, tertiary-air pipe 15, and secondary wind rotating vane 8, tertiary air is adjustable rotating vane 9, oil gun pipe 3, Gas Pipe 11, flame detector 3, coal pipe 13 and igniter 12 are formed; It is characterized in that: this burner is fixedly formed by the order suit of an airduct 12, Gas Pipe 11, cool air hose 16, coal pipe 13, secondary air channel 14 and tertiary-air pipe 15 each concentric of tubulose respectively; The oil gun pipe 3 of tubulose by after be inserted into the port of an airduct 10 forward, and concordant with port, be fixed on the place, axle center of an airduct 10; The tail end of airduct 10 and Gas Pipe 11 is connected with horizontal cold wind mouth inlet flange 16, a wind inlet flange 1 and a Gas Pipe inlet flange 4 respectively; Coal pipe 13 is sleeved on cool air hose 16 peripheries, and a quarter bend has been rolled at its rear portion, has formed coal powder entrance flange 5; One time airduct 10, Gas Pipe 11, cool air hose 16, coal pipe 13 and secondary air channel 14 are isometrical pipe; Between Gas Pipe 11 and 1 airduct 10, flame detector 2 is housed; Between secondary air channel 14 and the coal pipe 13, around coal pipe 13, secondary eddy flow impeller 8 is housed, it can change over eddy flow wind to secondary wind and spray from spout; Outside secondary air channel 14 tail ends, but the secondary windshield plate 6 of tapering shape of a dish axially-movable is installed, its side has leading screw regulating shaft 19, by this advance and retreat, can regulate its distance of airduct tail end mouth therewith, regulates the size of secondary air flow; Tertiary-air pipe 15 first halfs are tapering pipe 17, latter half of is isometrical pipe, in isometrical pipe outer race isometrical tertiary air quantity adjustable pipe 7 is housed, one side of tertiary air quantity adjustable pipe 7 has leading screw regulating shaft 20, by its side-to-side movement, drive tertiary air quantity adjustable pipe 7 and how much cover air inlet, the air quantity size that can regulate tertiary air; Between tertiary air Taper Pipe 17 and secondary air channel 14, the adjustable eddy flow impeller 9 of tertiary air is installed, its side also is equipped with leading screw regulating shaft 18, by the side-to-side movement of this leading screw regulating shaft 18, regulate the distance of adjustable eddy flow impeller 9 of tertiary air and tapering pipe 17 walls, the length and the size of adjustable solar term stream eddy flow ratio, can control eddy flow wind and a wind, the admixture of cooling air, the position and the size of change recirculating zone reach and regulate flame profile and make burning keep stable purpose.

In the drawings, this burner can burn simultaneously fuel oil, combustion gas and coal dust, a certain fuel simultaneously also can burn.

Claims (1)

1. low many fuel of the nitrogen oxygen multifuel combustion burner of wind is transferred in classification, and this burner is made up of an airduct (10), secondary air channel (14), cool air hose (16), tertiary-air pipe (15), secondary wind eddy flow impeller (8), tertiary air is adjustable eddy flow impeller (9), oily gorgeous pipe (3), Gas Pipe (11), flame detector (3), coal pipe (13) and igniter (12); It is characterized in that: this burner is fixedly formed by the order suit of an airduct (10), Gas Pipe (11), cool air hose (16), coal pipe (13), secondary air channel (14) and each concentric of tertiary-air pipe (15) of tubulose respectively; The oil gun pipe (3) of tubulose by after be inserted into the port of an airduct (10) forward, and concordant with port, be fixed on the place, axle center of an airduct (10); An airduct (10), Gas Pipe (11) and cold wind roll the tail end of pipe (16), are connected with horizontal cold air inlet flange (1 '), a wind inlet flange (1) and Gas Pipe inlet flange (4) respectively; Coal pipe (13) is sleeved on cool air hose (16) periphery, and a quarter bend has been rolled at its rear portion, has formed coal powder entrance flange (5); An airduct (10), Gas Pipe (11), cool air hose (16), coal pipe (13) and secondary air channel (14) are isometrical pipe; Between a Gas Pipe (11) and the airduct (10), flame detector (2) is housed; Between secondary air channel (14) and the coal pipe (13),, secondary eddy flow impeller (8) is housed around coal pipe (13); Outside secondary air channel (14) tail end, but the secondary windshield plate (6) of tapering shape of a dish axially-movable is installed, its side has leading screw regulating shaft (19); Tertiary-air pipe (15) first half is the tapering pipe, and latter half of is isometrical pipe, in isometrical pipe outer race isometrical tertiary air quantity adjustable pipe (7) is housed, and a side of tertiary air quantity adjustable pipe (7) has leading screw regulating shaft (20); Between tertiary air Taper Pipe (17) and secondary air channel (14), the adjustable eddy flow impeller of tertiary air (9) is installed, its side also is equipped with leading screw regulating shaft (18).

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