CN211060113U

CN211060113U - Furnace end for combustor

Info

Publication number: CN211060113U
Application number: CN201921780917.2U
Authority: CN
Inventors: 李小春
Original assignee: Foshan City Shunde District Yihewei Metal Products Co ltd
Current assignee: Foshan City Shunde District Yihewei Metal Products Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-21
Anticipated expiration: 2029-10-21

Abstract

A burner for a burner comprises an outer ring injection pipe, a central injection pipe and a burner base, wherein an outer ring mixing cavity communicated with the outer ring injection pipe and a central mixing cavity communicated with the central injection pipe are arranged in the burner base, the outer ring mixing cavity comprises a main gas mixing cavity and an injection transition cavity, the central mixing cavity is arranged in the main gas mixing cavity and is coaxially arranged, the gas outlet end of the outer ring injection pipe is connected to the cavity bottom of the injection transition cavity, the injection transition cavity is upwards inclined from the cavity bottom to the connecting end of the main gas mixing cavity, an outer expanding part consistent with the inclination direction of the injection transition cavity extends from one end of the outer ring injection pipe close to the gas outlet end, the gas outlet sectional area of the outer ring injection pipe close to the outer ring mixing cavity is geometrically increased by the outer expanding part, the injection capacity of the outer ring injection pipe can be improved, and gas can flow into the outer ring mixing cavity more smoothly, and the mixing effect of the fuel gas and the air is improved, so that the service power and the combustion efficiency of the furnace end are improved.

Description

Furnace end for combustor

Technical Field

The utility model relates to a combustor field specifically is a furnace end for combustor.

Background

The burner has the advantages that the corner parts must exist between each injection pipe and the corresponding mixing cavity in the structure of the existing burner, in the prior art, the burner is unreasonable in design, the corner parts have large resistance in the gas inflow period, so that the air and gas mixing effect is not ideal, the corner parts can obstruct the gas flow, the injection is influenced, the injection efficiency is low, and the combustion defects of low combustion efficiency, high smoke emission and the like are caused, so that the burner with the structure needs to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned current problem, provide a simple structure, reasonable a furnace end for combustor, its effect makes the gas flow in outer ring mixing cavity process more smooth and easy to and improve the mixed effect of gas and air.

A burner for a combustor comprises an outer ring injection pipe, a central injection pipe and a burner base, wherein an outer ring mixing cavity communicated with the outer ring injection pipe and a central mixing cavity communicated with the central injection pipe are arranged in the burner base,

an outer socket is formed in the air inlet end of the outer ring mixing cavity, a connecting plate is fixedly connected to the air inlet end of the outer ring injection pipe, an inner socket extends from the connecting plate, and the inner socket is connected with the outer socket in an inserting mode, so that the connecting plate covers the air inlet end of the outer ring mixing cavity;

the outer ring mixing cavity comprises a main gas mixing cavity and an injection transition cavity, the central mixing cavity is arranged inside the main gas mixing cavity and is coaxially arranged, the gas outlet end of the outer ring injection pipe is connected to the cavity bottom of the injection transition cavity, and the injection transition cavity is upwards inclined from the cavity bottom to the connecting end of the injection transition cavity and the main gas mixing cavity;

one end of the outer ring injection pipe close to the air outlet end extends to form an outward expansion part consistent with the inclination direction of the injection transition cavity, and the outward expansion part enables the air outlet sectional area of the outer ring injection pipe close to the outer ring mixing cavity to be geometrically increased.

The furnace end of above-mentioned structure can improve the outer ring fire and draw the ability of penetrating that penetrates the pipe, makes the gas flow into outer ring mixing cavity process more smooth and easy to and improve the mixed effect of gas and air, thereby improves the service power and the combustion efficiency of furnace end.

The utility model discloses can also adopt following technical measure to solve:

the outer ring draws and penetrates the end of giving vent to anger of pipe, central injection pipe and passes through connecting plate fixed connection together, and the center draws and penetrates the end of giving vent to anger of pipe and be provided with interior air inlet interface, and central mixing chamber body is connected with central premix pipe, and the inlet end portion of central premix pipe is equipped with the outer air inlet interface of pegging graft with interior air inlet interface.

The inner wall of the injection transition cavity relative to the connecting plate is outwards inclined from the cavity bottom of the injection transition cavity to the direction of the connecting end of the injection transition cavity and the main gas mixing cavity.

The outer end face of the connecting plate extends to form a plurality of first connecting lugs with connecting holes, the outer end face of the outer socket extends to form a plurality of second connecting lugs with connecting holes, and the connecting plate penetrates through the first connecting lugs and the second connecting lugs through fasteners to be fixedly connected to the furnace head base and seals the outer ring mixing cavity.

The furnace head seat is characterized in that the peripheral surface of the furnace head seat is provided with a forward water receiving tray position and a reverse water receiving tray position on the same horizontal plane, the forward water receiving tray position comprises three first connecting holes which are arranged equidistantly, the reverse water receiving tray position comprises three second connecting holes which are arranged equidistantly, and the second connecting holes and the first connecting holes are arranged equidistantly in a staggered mode.

The outer ring draws and penetrates and be provided with valve mounting substrate on the inlet end that the pipe was penetrated to the center drawing, be equipped with the riveting hole on the valve mounting substrate, the outer ring draws the inlet end integral type that penetrates pipe and center drawing and penetrate the pipe to be connected, and the junction extends to have with riveting hole complex riveting head.

And a structural reinforcing plate for filling a gap between the outer ring injection pipe and the central injection pipe is arranged between the outer ring injection pipe and the central injection pipe.

An included angle A is formed between the inclined axis of the injection transition cavity and the axis of the central mixing cavity, and A is more than or equal to 15 degrees and less than or equal to 50 degrees.

The utility model has the advantages as follows:

the utility model relates to a furnace end for combustor, simple structure, low in production cost, the furnace end of this structure can improve outer ring fire and draw the ability of drawing of penetrating the pipe, makes the gas flow in outer ring and mixes the cavity process more smoothly to and improve the mixed effect of gas and air, thereby improve the power of utilization and the combustion efficiency of furnace end, energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is a schematic view of the outer ring injection pipe and the central injection pipe of the present invention.

Fig. 3 is a schematic view of the structure of the burner seat of the present invention.

Fig. 4 is a schematic diagram of the outer ring injection pipe and the central injection pipe of the present invention.

Fig. 5 is a schematic view of the cross-sectional structure of the outer ring injection pipe and the central injection pipe of the present invention.

Fig. 6 is a schematic top view of the burner seat of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 6, a burner for a burner comprises an outer ring injection pipe 1, a central injection pipe 2 and a burner base 3, wherein an outer ring mixing cavity 4 communicated with the outer ring injection pipe 1 and a central mixing cavity 5 communicated with the central injection pipe 2 are arranged in the burner base 3,

an outer socket 6 is formed in the air inlet end of the outer ring mixing cavity 4, a connecting plate 7 is fixedly connected to the air inlet end of the outer ring injection pipe 1, an inner socket 8 extends from the connecting plate 7, and the inner socket 8 is connected with the outer socket 6 in an inserting mode, so that the connecting plate 7 covers the air inlet end of the outer ring mixing cavity 4; can reduce the area of riveting through the socket installation, sealed effectual moreover, packing transportation behind the convenient to detach, in addition outer socket 6 and interior bayonet socket 8 can be according to production needs with both position exchanges, play same sealed effect.

The outer ring mixing cavity 4 comprises a main gas mixing cavity 41 and an injection transition cavity 42, the central mixing cavity 5 is arranged inside the main gas mixing cavity 41 and coaxially arranged, the gas outlet end of the outer ring injection pipe 1 is connected to the injection transition cavity 42, and the injection transition cavity 42 is upwards inclined from the cavity bottom to the connecting end of the injection transition cavity 42 and the main gas mixing cavity 41; this structure makes the interior gas that mixes of injection transition chamber 42 flow into main gas mixing chamber 41, and the angle that flows in and the direction of giving vent to anger of main gas mixing chamber 41 form great obtuse angle, can make the gas flow more smoothly, reduces because the corner position causes the gas to flow and meets the resistance.

An outward expansion part 9 which is consistent with the inclined direction of the injection transition cavity 42 extends from one end of the outer ring injection pipe 1 close to the air outlet end, and the cross section area of the air outlet of the outer ring injection pipe 1 close to the outer ring mixing cavity 4 is geometrically increased by the outward expansion part 9; the space for mixing the gas and the air is rapidly increased in the increasing process, so that the mixing effect of the gas and the air is more ideal.

The outer loop draws and penetrates pipe 1, the center draws the end of giving vent to anger of penetrating pipe 2 and pass through connecting plate 7 fixed connection together, the center draws the end of giving vent to anger of penetrating pipe 2 to be provided with interior interface 10 that admits air, the mixed cavity 5 in center is connected with central premix pipe 11, the inlet end portion of central premix pipe 11 is equipped with the outer interface 12 that admits air of pegging graft with interior interface 10, make 7 covers of connecting plate close when outer socket 6, can draw the outer loop simultaneously to penetrate pipe 1 and the center draws to penetrate the pipe 2 and insert the cavity that corresponds, improve assembly efficiency.

Draw the inner wall 43 of penetrating transition chamber 42 relative connecting plate 7 and to draw the transition chamber 42 and mainly mix the gas chamber 41 link direction and lean out by the chamber bottom department of drawing the transition chamber 42, this structure makes the gas that the outer loop penetrated pipe 1 draw and draws when penetrating the transition chamber 42, the angle of inflow forms the obtuse angle with the incline direction of inner wall 43 equally, can make the gas flow more smoothly, reduce because the corner position causes the gas to flow and meets the resistance, make gas mixture's space crescent in addition, make the gas mixing effect more ideal.

The outer end face of the connecting plate 7 extends to form a plurality of first connecting lugs 14 provided with connecting holes 13, the outer end face of the outer insertion opening 6 extends to form a plurality of second connecting lugs 15 provided with connecting holes 13, the connecting plate 7 penetrates through the first connecting lugs 14 and the second connecting lugs 15 through fasteners to be fixedly connected onto the furnace head base 3 and seal the outer ring mixing cavity 4, so that the connecting plate 7 and the furnace head base 3 are tightly installed, and convenience is brought to maintenance personnel to disassemble and clean.

The outer peripheral face of the stove head seat 3 is provided with a forward water receiving tray position 16 and a reverse water receiving tray position 17 on the same horizontal plane, the forward water receiving tray position 16 comprises three first connecting holes 161 which are arranged in equal intervals, the reverse water receiving tray position 17 comprises three second connecting holes 171 which are arranged in equal intervals, the second connecting holes 171 and the first connecting holes 161 are arranged in equal intervals in a staggered mode, the stove head can meet water receiving trays in different installation directions through the forward water receiving tray position 16 and the reverse water receiving tray position 17, an offline production factory does not need to replace different water receiving trays according to the forward direction and the reverse direction of the water receiving tray position, or a manufacturer does not need to set two sets of different dies and production lines according to the forward direction and the reverse direction of the water receiving tray position of the offline production factory.

The outer loop draws and penetrates and be provided with valve mounting substrate 18 on the inlet end that pipe 1 and center draw penetrated pipe 2, is equipped with riveting hole 181 on the valve mounting substrate 18, and the outer loop draws and penetrates pipe 1 and the center and draw the inlet end integral type that penetrates pipe 2 and connect, and the junction extends have with riveting hole 181 complex riveting 19, makes the outer loop draw penetrate pipe 1 and center draw penetrate pipe 2 and can pass through die-casting production, makes things convenient for the demolding, and the riveting is firm moreover, and riveting speed is fast, improves production efficiency.

The outer loop draws and penetrates and to be provided with the structure reinforcing plate 20 who fills the clearance between the two between pipe 1 and the center draw between pipe 2, the integral type constructs reinforcing plate 20 and can makes the outer loop draw and penetrate pipe 1 and center draw and penetrate pipe 2 when die-casting, and the material in the mould flows and penetrates pipe 1 and center draw between pipe 2 clearance position more even when penetrating to the outer loop, reduces the gas pocket after the demolding, and this structure reinforcing plate 20 can improve the outer loop and draw and penetrate pipe 1 and center and draw and penetrate 2 whole rigidity of pipe, reduces distortion moreover.

An included angle A is formed between the inclined axis of the injection transition cavity 42 and the axis of the central mixing cavity 5, and A is more than or equal to 15 degrees and less than or equal to 50 degrees; the resistance loss can be reduced when the mixed gas of the fuel gas and the air is sprayed to the main gas mixing cavity 41 from the injection transition cavity 42, and the injection is smoother and smooth.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a furnace end for combustor, draws including outer ring and penetrates pipe (1), center and draw and penetrate pipe (2) and furnace base (3), be equipped with in furnace base (3) and draw outer ring mixing cavity (4) of penetrating pipe (1) switch-on and draw center mixing cavity (5) of penetrating pipe (2) switch-on with the center with the outer ring, its characterized in that:

an outer socket (6) is formed in the air inlet end of the outer ring mixing cavity (4), a connecting plate (7) is fixedly connected to the air inlet end of the outer ring injection pipe (1), an inner socket (8) extends from the connecting plate (7), the inner socket (8) is connected with the outer socket (6) in an inserting mode, and the connecting plate (7) covers the air inlet end of the outer ring mixing cavity (4);

the outer ring mixing cavity (4) comprises a main gas mixing cavity (41) and an injection transition cavity (42), the central mixing cavity (5) is arranged inside the main gas mixing cavity (41) and is coaxially arranged, the gas outlet end of the outer ring injection pipe (1) is connected to the injection transition cavity (42), and the injection transition cavity (42) is upwards inclined from the cavity bottom to the connecting end of the injection transition cavity and the main gas mixing cavity (41);

one end of the outer ring injection pipe (1) close to the air outlet end extends to form an outer expanding part (9) consistent with the inclined direction of the injection transition cavity (42), and the outer expanding part (9) enables the air outlet sectional area of the outer ring injection pipe (1) close to the outer ring mixing cavity (4) to be geometrically increased.

2. The burner for a burner of claim 1, wherein: the outer ring draws and penetrates the end of giving vent to anger of pipe (1), central injection pipe (2) and passes through connecting plate (7) fixed connection together, and the center draws and is provided with interior interface (10) that admits air on the end of giving vent to anger of pipe (2), and central mixing cavity (5) are connected with central pre-mixing pipe (11), and the inlet end portion of central pre-mixing pipe (11) is equipped with outer interface (12) that admits air of pegging graft with interior interface (10).

3. The burner for a burner of claim 1, wherein: the injection transition cavity (42) is inclined outwards from the cavity bottom of the injection transition cavity (42) to the connecting end of the injection transition cavity (42) and the main air mixing cavity (41) relative to the inner wall (43) of the connecting plate (7).

4. The burner for a burner of claim 1, wherein: the outer end face of the connecting plate (7) extends to form a plurality of first connecting lugs (14) provided with connecting holes (13), the outer end face of the outer inserting opening (6) extends to form a plurality of second connecting lugs (15) provided with connecting holes (13), and the connecting plate (7) penetrates through the first connecting lugs (14) and the second connecting lugs (15) through fasteners to be fixedly connected onto the furnace head base (3) and seal the outer ring mixing cavity (4).

5. The burner for a burner of claim 1, wherein: the furnace base is characterized in that the peripheral surface of the furnace base (3) is provided with a forward water receiving tray (16) and a reverse water receiving tray (17) on the same horizontal plane, the forward water receiving tray (16) comprises three first connecting holes (161) which are arranged at equal intervals, the reverse water receiving tray (17) comprises three second connecting holes (171) which are arranged at equal intervals, and the second connecting holes (171) and the first connecting holes (161) are arranged at equal intervals in a staggered mode.

6. The burner for a burner of claim 1, wherein: the outer ring draws and penetrates and be provided with valve mounting substrate (18) on the inlet end of pipe (1) and the central injection pipe (2) is penetrated, be equipped with riveting hole (181) on valve mounting substrate (18), the outer ring draws and penetrates the inlet end integral type of pipe (1) and the central injection pipe (2) and is connected, and the junction extends and has riveting head (19) with riveting hole (181) complex.

7. The burner for a burner of claim 1, wherein: and a structural reinforcing plate (20) for filling a gap between the outer ring injection pipe (1) and the central injection pipe (2) is arranged between the outer ring injection pipe and the central injection pipe.

8. The burner for a burner of claim 1, wherein: an included angle A is formed between the inclined axis of the injection transition cavity (42) and the axis of the central mixing cavity (5), and A is more than or equal to 15 degrees and less than or equal to 50 degrees.