CN2145913Y

CN2145913Y - oil fuel combustion flame tube

Info

Publication number: CN2145913Y
Application number: CN 92235491
Authority: CN
Inventors: 汤俊
Original assignee: YANMIN BURNER PLANT YUEYANG CITY
Current assignee: YANMIN BURNER PLANT YUEYANG CITY
Priority date: 1992-12-11
Filing date: 1992-12-11
Publication date: 1993-11-10
Anticipated expiration: 2002-12-11

Abstract

The utility model relates to an oil fuel combustion flame tube for an industrial kiln. The device mainly comprises a combustion chamber, a shell, an oil gun support sleeve, an end plate, an electronic ignition electrode, an elbow and a throttle valve. It features that combustion-supporting air is proportionally fed into combustion chamber from axial, radial and tangential directions and is fully mixed with atomized oil from nozzle of oil gun for complete combustion, so preventing coking of internal wall and end plate of combustion chamber.

Description

Oily fuel combustion burner inner liner

The utility model relates to a kind of industrial kiln oil fuel combustion flame tube.

The burner inner liner that is widely used at present, can break away from burner hearth and finish oil plant atomizing, vaporization, with the even mixed combustion of air, the flame of ejection high temperature, high speed smokeless and dust free pollutes for a short time, the fractional energy savings height is a kind of burner preferably.But also exist around the combustion barrel and the easy phenomenon of coking of end plate.

The purpose of this utility model is to provide a kind of combustion efficiency better, the industrial kiln oil fuel combustion flame tube that combustion chamber inwall and end plate coking are few.

The utility model supports the combustion chamber cylindrical shell and is fixedly welded on oil gun and props up and put by round steel, be drilled with the air intake aperture around the barrel front end, and the shell front end is provided with current limliting back taper steel ring, and outer casing back is connected with elbow by flange; End plate is designed to produce the cyclone plate of whirlwind, promptly at many wind guide tanks of radial equipartition of end plate; End plate is weldingly fixed on round steel and supports, and respectively leaves narrow annular channel between the cylindrical of the endoporus of end plate and oil gun spider external diameter, end plate and the combustion chamber inwall.

The utility model has been made rational layout on distribution amount and wind direction.Air is respectively from axially, radially, tangentially (whirlwind) multi-section position enters the combustion chamber by a certain percentage, wherein oil gun spider and end plate endoporus narrow annular channel, enter axial wind in the narrow annular channel between end plate cylindrical and combustion chamber inwall narrow annular channel and outer casing inner wall and the outer wall of combustion chamber, account for 79%, the footpath that enters from the cylindrical shell radial hole of combustion chamber aweather accounts for 7.6%, and the spiral wind that enters from the end plate wind guide tank accounts for 13.4%.Because therefore the combustion air that enters the combustion chamber reaches the effect of completing combustion from axially, radially fully mix with the atomizing oil plant of injector ejection in proportion with the tangential multiple flow direction, has prevented combustion chamber inwall, end plate coking phenomenon.

Fig. 1 is the utility model structure cutaway view;

Fig. 2 is the end plate schematic diagram.

Below in conjunction with description of drawings embodiment.

As shown in Figure 1, the utility model is made up of combustion chamber 1, shell 2, oil gun spider 3, end plate 4, electronic striking electrode 5, elbow 6, joint air door 7.Combustion chamber 1 is cylindrical, is drilled with 1-4 row aperture on the circumference at the axial 10-40mm of front end place, and the aperture is 2-10mm, and cylindrical shell is fixing with oil gun spider 3 welding that are positioned at the center by 3 round steel.Shell 2 is total supporting, and receives the combustion air formation air compartment that the joint air door is come, and its front end has a current limliting back taper steel ring, and the rear end is connected with elbow 6 by ring flange, and elbow 6 is connected with the door 7 of giving a dinner for a visitor from afar.End plate 4 is fixedly welded on the round steel, be air chamber and combustion chamber boundary, end plate radial equipartition 6-12 bar wind guide tank, the cylindrical of the endoporus of end plate and oil gun spider external diameter and end plate and the inwall of combustion chamber respectively form an annular slit for automatic igniting, by outer radial pitch circle 20-40mm place, hole electronic striking electrode 5 are set at end plate.In addition, at the front end 30-50mm place of oil gun spider 3 ring-shaped air chamber is set, it directly has aperture to communicate with the air chamber of shell 2.

As shown in Figure 2, the end plate plane is the flat shape wind guide tank of punching out 6-12 radially, and has scratched to the end plate plane respectively on the both sides of groove, forms the whirlwind along the end plate plane when making wind pass through wind guide tank, and the length of this wind guide tank is 20-100mm, and wide is 2-4mm.

In the utility model when burning,, axially wind one road external diameter two circular passages in the end plate enter the combustion chamber, and another road enters front end from the circular passage between shell and the combustion chamber.Owing to have aperture on the barrel front end circumference of combustion chamber, also because the housing outlet place is provided with the back taper steel ring, so some wind enters the combustion chamber by the hole around the cylindrical shell of combustion chamber when entering the wind of shell circular passage and arriving front end, can reduce the axial spread speed of flame, cause part flame to reflux, steady flame effect is also played in the vaporization of favourable fuel and oxidation simultaneously.

In addition, the axial wind that air compartment comes is during through the wind guide tank on the end plate plane, because wind guide tank has the shape that has scratched on the two sides, formation becomes the spiral wind of fan shape to advance in the combustion chamber when making wind pass through wind guide tank along the end plate front, has prevented the coking of end plate and rifle head effectively.

The utility model is through test, when fuel pressure at 0.3-1..2MPa, heavy oil temperature is at 120-130 ℃, blast when 2500-5500Pa, cold conditions t≤2S duration of ignition, promptly enter continuous burning, rear does not smokelessly have oil droplet, and efficiency of combustion reaches more than 97%, and outer sheath temperature is lower than 50 ℃, burner inner liner temperature≤550 ℃, and oil mass changes more than 6 times flame-out.

This combustion flame tube is applicable to crude oil, kerosene, diesel oil, heavy oil, residual oil, can with can be in harmonious proportion non-adjustable oil gun and be used on the Industrial Stoves of all kinds different size.

Claims

1, a kind of oil fuel combustion flame tube, has combustion chamber (1), shell (2), oil gun spider (3), end plate (4), elbow (6), joint air door (7), it is characterized in that it also has electronic striking electrode (5), described combustion chamber (1) cylindrical shell supports by round steel and is fixedly welded on the oil gun spider (3), be drilled with fresh air inlet around the barrel front end, the front end of described shell (2) is provided with current limliting back taper steel ring, outer casing back is connected with elbow by flange, described end plate is weldingly fixed on round steel and supports, uniform many wind guide tanks on the end plate plane are respectively leaving narrow annular channel between the endoporus of end plate and the oil gun spider external diameter and between the cylindrical of end plate and the combustion chamber inwall.

2, burner inner liner according to claim 1 is characterized in that being drilled with on the circumference at the axial 10-40mm of combustion chamber (1) front end place 1-4 row aperture, and the aperture is 2-10mm.

3, burner inner liner according to claim 1 is characterized in that the end plate planar radial is furnished with 6-12 bar wind guide tank, and the length of wind guide tank is 20-100mm, and wide is 2-4mm.

4, burner inner liner according to claim 3 is characterized in that the electronic striking electrode is arranged on end plate endoporus outer radial pitch circle 20-40mm place.

5, burner inner liner according to claim 1 is characterized in that the front end 30-50mm place of oil gun spider (3) is provided with ring-shaped air chamber, and it radially has aperture to communicate with the air chamber of shell (2).