CN2141868Y

CN2141868Y - Multipurpose centrifugal fuel atomizing burner

Info

Publication number: CN2141868Y
Application number: CN 92244953
Authority: CN
Inventors: 鲍侃; 李富林
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-19
Filing date: 1992-12-19
Publication date: 1993-09-08
Anticipated expiration: 2002-12-19

Abstract

The utility model belongs to a fuel or coal water slurry burning nozzle which emulsifies steam and fuel by adopting a venturi ejector, and the steam and the fuel are separated by a gas cyclone body under the function of centrifugal force. Simultaneously, a fuel film is formed on the surface of an inner cavity of a core cyclone seat, the fuel film is put into the conical surface of a core expander to be expanded and thrown out, and the thrown film is atomized by low-pressure air. The utility model has the advantages of simple structure, convenient operation and low energy consumption and is suitable for coal water slurry and fuel with different high viscosity and low viscosity, and the fuel quantity regulation range is large. The utility model is widely used in various industrial furnaces, and the energy saving effect is obvious.

Description

Multipurpose centrifugal fuel atomizing burner

The utility model belongs to fuel oil or combusting coal water slurry nozzle, and is particularly a kind of many with centrifugal fuel atomization burner.

At present, no matter be burner commercially available or the data introduction, atomized particle size is bigger, fuel can not fully burn, Chinese patent CN87200388 discloses a kind of " centrifugal force cloth level Four atomizing oil nozzle ", just not so good for the fuel atomization degree that viscosity is bigger, and in use easily stop up, water-coal-slurry can not be applicable to.

The purpose of this utility model provide a kind of many be main object with the fuel atomization burner with fuel oil or water-coal-slurry, the fuel adjusting scope is big.

The solution that realizes the utility model purpose is to comprise core body expander (1), shell A(6), shell B(14), it is characterized in that (4) one in burner core body and core body swirl base (2) thread connection, other end and shell B(14) be fixedly connected, near core body swirl base (2) Wen's injector (8) is installed in the burner core body (4), the other end of Wen's injector (8) is steam control valve (17), the valve rod that fuel coil pipe (10) is coiled in steam control valve (17) puts outward, one is passed through pipe joint (9) and connects with Wen's injector (8), other end and fuel control valve (19) link, shell A(6) to go up at burner core body (4) that guiding regulates with the relative position of core body expander (1) by key (7) be by low-pressure air control valve (18).Combustion vapour rotary fluid (3) is installed in core body swirl base (2), and combustion vapour rotary fluid (3) has at least two helical ducts in the garden on week.Combustion vapour rotary fluid (3) is provided with cone (21) in a side of Wen's injector (8), and the vertex of a cone of cone (21) stretches in the typhon mouth of Wen's injector (8); In order to make Wen's injector (8) keep certain temperature on every side, on burner core body (4), be provided with little inclined hole (11), so that steam flows; Three used control valves are promptly: steam control valve (17), low-pressure air control valve (18), and fuel control valve (19) is provided with division indicator (22), (23), (24) respectively, the theory structure basically identical of these three valves; Wen's injector (8) is made up of the vertex of a cone a typhon shape and a toy trumpet shape vertex of a cone, is provided with cavity (23) at the vertex of a cone place of typhon shape; In the centre of cavity (23) inclined hole is arranged, this inclined hole and fuel coil pipe (10) link.

The utility model has the advantages that simple in structurely, atomizing fully is applicable to the fuel of various viscosity, and is not high to the quality requirement of fuel itself as heavy oil, residual oil, water-coal-slurry etc., and power consumption is less, and is easy to use, energy savings, and the amount of fuel adjustable range is big.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is a schematic diagram of the present utility model;

Fig. 2 is the A-A cutaway view of figure one.

Shell B(14) links by flange and low-pressure air device, shell A(6) be inserted in shell B(14 with the form of matched in clearance) in, core body expander (1) is arranged on shell A(6) in, one end is tubaeform, the other end connects with core body swirl base (2) with screw thread, core body swirl base (2) uses screw thread to connect with burner core body (4) simultaneously, the other end of burner core body (4) is by bolt (12) and shell B(14) be fixedly connected, on burner core body (8), be provided with inclined hole (11) simultaneously.Combustion vapour rotary fluid (3) is installed in the core body swirl base (2), on combustion vapour rotary fluid (3), have at least two helical ducts, so that the mixture of the fuel of emulsification and steam forms rotation here, combustion vapour rotary fluid (3) has a cone (21), and its vertex of a cone points to and deviates from core body expander (1).In burner core body (4), near core body swirl base (2) Wen's injector (8) is installed, be provided with sealed picture (5) between them, the typhon mouth of Wen's injector (8) is against core body swirl base (2), the cone (21) of combustion vapour rotary fluid (3) stretches in this typhon mouth, vertex of a cone place the typhon shape of Wen's injector (8) is provided with cavity (23), the centre of cavity (23) is provided with an inclined hole, this inclined hole links by pipe joint (9) and fuel coil pipe, the other end at cavity (23) is connected with the vertex of a cone of the toy trumpet shape of Wen's injector (8), be provided with a cone in this toy trumpet shape, the valve rod of this cone and steam control valve (17) links; Fuel coil pipe (10) is that the valve rod that is coiled in steam control valve (17) puts outward, the other end is associated on the fuel control valve (19), shell A(6) is enclosed within on the burner (4) by key (7) sky, and adjust the relative position of it and core body expander (1) by low-pressure air control valve (19), thereby adjusting low-pressure air, (20), (15) all be seal washer, (22), (23), (24) be steam control valve (17) respectively, low-pressure air is transferred valve (18), the division indicator of fuel control valve (19), (25) be oil-in, (26) are steam ports into.

Low-pressure air is from shell B(14) flange port enter shell B(14) and shell A(6) and burner core body (4) between cavity in, from shell A(6) the low-pressure air speedup runner ejection formed with core body expander (1).

The afterbody that steam is sent in the burner core body (4) is the periphery of fuel coil pipe (10), be divided into two-way, one tunnel end-face hole through Wen's injector (8) enters the annular steam cover of Wen's injector (8) and burner core body (4) composition and enters shell A(6 by the inclined hole on the burner core body (11)) and the low-pressure air mixing; Another path steam regulator (17) enters the cavity (23) of Wen's injector (8) from the center toy trumpet mouth of Wen's injector (8), drive enters from fuel control valve (19), through fuel coil pipe (10), the fuel that arrives the cavity (23) of Wen's injector (8) of the inclined hole on Wen's injector (8) is sprayed onto in the typhon shape of Wen's injector (8) together again, carries out the emulsification of fuel.Because the effect of the cone (21) of combustion vapour rotary fluid (3), the typhon shape and the contracting of cone (21) composition that are Wen's injector (8) are quickened through passage, the helical duct rotation that fuel and steam mixture are formed by combustion vapour rotary fluid (3) and core body swirl base (2), under action of centrifugal force, steam separates again with fuel, fuel accumulates in the helical flow path outside and flows out combustion vapour rotary fluid (3), form the swirling fuel film at core body swirl base (2) surface of internal cavity, the rotation vapor stream that is flowed out by helical flow path expands in the inner chamber of core body swirl base (2), compression also promotes the centre bore that fuel film flows out core body swirl base (2) head, along the garden conical surface expansion of core body expander (1) and dish out, fuel film is at shell A(6) and the distinguished and admirable effect of flowing out of the low-pressure air speedup runner formed of core body expander (1) under atomize.

The utility model is applicable to the industrial furnaces such as heating furnace, tempering furnace, tunnel kiln, heat-treatment furnace and boiler that use water-coal-slurry and various fuel oil, and the sprayer that also can be used as various solution and underflow liquid uses.If the viscosity of fuel is lower, steam can be changed to compressed air.

Claims

1, a kind of many with centrifugal fuel atomization burner, comprise core body expander (1), shell A (6), shell B (14), it is characterized in that (4) one in burner core body and core body swirl base (2) thread connection, other end and shell B (14) are fixedly connected, near core body swirl base (2) Wen's injector (8) is installed in the burner core body (4), the other end of Wen's injector (8) is steam control valve (17), the valve rod that fuel coil pipe (10) is coiled in steam control valve (17) puts outward, one is passed through pipe joint (9) and connects with Wen's injector (8), other end and fuel control valve (19) link, shell A (6) goes up guiding by key (7) at burner core body (4), with the relative position of core body expander (1) by low-pressure air control valve (18).

2,, it is characterized in that being equipped with in the said core body swirl base (2) combustion vapour rotary fluid (3) according to the said fuel atomization burner of claim 1.

3,, it is characterized in that said combustion vapour rotary fluid (3) has at least two helical ducts in the garden on week according to claim 1 or 2 said fuel atomization burners.

4, according to claim 1 or 2 said fuel atomization burners, it is characterized in that said combustion vapour rotary fluid (3), be provided with cone (21) in a side of Wen's injector (8).

5,, it is characterized in that said burner core body (4) is provided with little inclined hole (11) according to the said fuel atomization burner of claim 1.

6,, it is characterized in that said steam control valve (17), low-pressure air control valve (18), fuel control valve (19) have division indicator (22), (23), (24) respectively according to the said fuel atomization burner of claim 1.

7, according to the said fuel atomization burner of claim 1, it is characterized in that said Wen's injector (8) is made up of the vertex of a cone a typhon shape and a toy trumpet shape vertex of a cone, be provided with cavity (23) at the vertex of a cone place of typhon shape.

8, according to claim 1 or 7 said fuel atomization burners, it is characterized in that there is an inclined hole centre of said cavity (23), this inclined hole and fuel coil pipe (10) link.