CN216114033U

CN216114033U - Rotary flame type burner

Info

Publication number: CN216114033U
Application number: CN202122782599.7U
Authority: CN
Inventors: 朱杰益
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-22
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a rotary fire type combustor and relates to the technical field of combustion appliances. The rotary-fire type burner comprises a burner head, a central fire cover, an outer ring fire cover, a central gas distribution disc, an outer ring gas distribution disc, a central injection pipe and an outer ring injection pipe, wherein the central gas distribution disc, the outer ring gas distribution disc, the central injection pipe and the outer ring injection pipe are arranged on the burner head; the central fire cover and the outer ring fire cover are formed by pressing metal or alloy plates; the central fire cover is provided with a conical central outer side surface which is provided with a first fire hole; the top of outer ring fire lid is equipped with the outer loop top surface of back taper, and the punching press is formed with sunken second fire hole, and second fire hole includes curved guide portion. Compared with the method for processing the fire holes in the casting milling groove, the density of the plate stamping fire holes can be reduced and changed, the guide part is in arc transition to the inner cavity of the outer ring fire cover and the top surface of the outer ring along the lateral direction, and the stamping sunken structure enables gas to be output along a smaller inclination angle, so that the gas is more fully rotated and mixed, the flame distribution is more uniform, the combustion efficiency is improved, and the overall weight of the plate can be reduced.

Description

Rotary flame type burner

Technical Field

The utility model relates to the technical field of combustion appliances, in particular to a rotary fire type combustor.

Background

The fire cover of the low-cost combustor is mostly made of castings, and is a single rotary fire combustor and a single direct fire combustor. For the rotary-fire type burner, an inclined strip-shaped fire hole is processed in a mode of milling a groove on a casting fire cover, so that fuel gas is obliquely sent out, and flame is generated in the rotary-fire type burner.

However, due to the limitations of casting materials, processing methods and structures, the density of the strip-shaped fire holes cannot be distributed too densely, and the fire holes are through holes, so that the included angle of the fire holes inclined to the horizontal plane cannot be too small, otherwise, the fire cover is easy to crack or crack, and the whole weight is large. Due to weight limitation, the radial size of the cast fire cover is smaller, the length of the strip-shaped fire holes is generally smaller, and the number of the fire holes of the fire cover is smaller, so that the flame combustion area is dispersed, and the coverage area is small; in addition, the slope contained angle of bar fire hole and horizontal plane is great, and the angle that the flame slope was sent out is great, and flame tends to vertical sending out this moment, and the degree of rotatory mixture is lower, and the homogeneity of distribution is low, has the burning insufficient, the low not enough scheduling problem of thermal efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a rotary fire type combustor, which aims to use a metal or alloy plate to manufacture a fire cover, the top surface of an outer ring fire cover is pressed with an inverted cone-shaped outer ring top surface, a sunken strip-shaped second fire hole is prepared on the top surface in a stamping manner, the fire cover made of the plate metal is different from a casting fire cover, and more dense fire holes can be manufactured; and through the guide portion of second fire hole and subside, the output gas of level and smooth or more slope makes the rotatory mixture of gas more abundant, and flame distribution is more even, makes the burning more abundant, effectively improves combustion efficiency.

The technical scheme adopted by the embodiment of the utility model for solving the technical problem is as follows: a rotary-fire burner comprising: the burner comprises a burner head, a central fire cover, an outer ring fire cover, a central gas distribution disc, an outer ring gas distribution disc, a central injection pipe and an outer ring injection pipe, wherein the central gas distribution disc, the outer ring gas distribution disc, the central injection pipe and the outer ring injection pipe are arranged on the burner head;

the central fire cover and the outer ring fire cover are formed by pressing metal or alloy plates; the central fire cover is positioned in the middle of the furnace end, the outer ring fire covers are annularly arranged and are sleeved at the outer edge of the central fire cover at intervals;

the central fire cover is provided with a conical central outer side surface, and the central outer side surface is provided with a plurality of circular first fire holes;

the top of the outer ring fire cover is provided with an inverted cone-shaped outer ring top surface; the outer loop top surface is formed with a plurality of bar second fire hole of sinking through the punching press, the second fire hole is including being absorbed in outer loop fire lid inner arc's guide portion.

Optionally, the second fire hole further comprises an arc-shaped transition part; the guide part extends along the radial direction of the central fire cover, and the transition parts are positioned at two ends of the guide part, so that the two ends of the guide part are in arc transition connection with the top surface of the outer ring.

Optionally, the included angle between the top surface of the inverted cone outer ring and the horizontal plane is in the range of 4-12 degrees.

Optionally, the first fire holes on the outer side surface of the center are arranged in a plurality of layers along the longitudinal direction.

Optionally, flanges are arranged at the top of the central air distribution disc and the top of the outer ring air distribution disc; the bottoms of the central fire cover and the outer ring fire cover are provided with a back-buckling structure; the turned-over edge can be clamped into the back-buckling structure.

Optionally, the furnace end comprises a main board, and supporting legs and a positioning frame which are mounted on the main board; the outer ring gas distribution plate is installed on the main board through a positioning frame, and the output ends of the central injection pipe and the outer ring injection pipe can be clamped on the main board.

Optionally, the main board is provided with a central boss and an outer ring boss; a central clamping interface is formed in the central boss, and the central injection pipe can be clamped into the central clamping interface; an outer ring clamping interface is formed in the outer ring boss, and the outer ring injection pipe can be clamped into the outer ring clamping interface.

Optionally, the main plate, the supporting legs and the positioning frame are formed by pressing metal or alloy plates.

Optionally, the central fire cover, the outer ring fire cover, the main board, the supporting legs and the positioning frame are all formed by pressing stainless steel plates.

The utility model has the beneficial effects that: the central fire cover or the outer ring fire cover is formed by pressing a metal or alloy plate, a circular first fire hole is formed in the central fire cover after pressing, fuel gas is directly output from the middle of the combustor, a sunken strip-shaped second fire hole is formed in the top surface of an outer ring on the outer ring fire cover in a stamping mode, the fuel gas is output from the second fire hole in an inclined mode, and the outer ring fire cover forms a rotary combustion flame; the fire cover made of sheet metal is different from a cast fire cover, so that more dense fire holes can be manufactured, the flame combustion distribution area is larger, and the effective combustion space is more. The second fire hole comprises a sunken guide part, the guide part is in arc transition to the inner cavity of the outer ring fire cover and the top surface of the outer ring along the lateral direction, and the punched sunken structure can effectively reduce the inclined angle of the second fire hole, so that the gas in the inner cavity of the outer ring fire cover is output along a smaller inclined angle, the gas is rotated and mixed more fully, the flame distribution is more uniform, the combustion is more complete, and the combustion efficiency is effectively improved; and the metal or alloy sheet metal is thin and flat as a whole, has uniform thickness and weight far lower than that of a casting, and can effectively reduce the whole weight of the combustor.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of a rotary-fire burner according to one embodiment of the present invention;

FIG. 2 is a top view of a rotary-fire burner in accordance with one embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line V1-V1 of FIG. 2;

FIG. 4 is a cross-sectional view taken along line V2-V2 in FIG. 2.

Description of the main element symbols:

10. a furnace end; 11. a main board; 12. supporting legs; 13. a positioning frame; 14. a central boss; 15. a center card interface; 16. an outer ring boss; 17. an outer ring card interface; 20. a central fire cover; 21. a central outer side surface; 22. a first fire hole; 30. an outer ring fire cover; 31. an outer ring top surface; 32. a second fire hole; 33. a guide section; 34. a transition section; 40. a central gas distribution plate; 41. flanging; 50. an outer ring gas distribution plate; 60. a central ejector tube; 70. an outer ring ejector tube.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Examples

Referring to fig. 1 to 4, the central gas distribution plate 40, the outer ring gas distribution plate 50, the central ejector pipe 60 and the outer ring ejector pipe 70 provided in the present invention and installed on the furnace end 10;

the central fire cover 20 and the outer ring fire cover 30 are formed by pressing metal or alloy plates; the central fire cover 20 is positioned in the middle of the furnace end 10, the outer ring fire cover 30 is arranged in a ring shape, and the outer edge of the central fire cover 20 is sleeved with a spacer;

the central fire cover 20 is provided with a conical central outer side surface 21, and the central outer side surface 21 is provided with a plurality of circular first fire holes 22;

the top of the outer ring fire cover 30 is provided with an inverted cone-shaped outer ring top surface 31; the outer ring top surface 31 is formed with a plurality of bar-shaped second fire holes 32 sunk by punching, and the second fire holes 32 comprise guide parts 33 sunk into the inner arc shape of the outer ring fire cover 30.

In the utility model, the central fire cover 20 or the outer ring fire cover 30 is formed by pressing a metal or alloy plate, a circular first fire hole 22 is formed in the central fire cover 20 after pressing, fuel gas is directly output from the middle part of the burner, a sunken strip-shaped second fire hole 32 is formed in the top surface 31 of the outer ring on the outer ring fire cover 30 in a stamping mode, the second fire hole 32 outputs the fuel gas in an inclined mode, and the outer ring fire cover 30 forms a rotary type combustion flame; the fire cover made of sheet metal is different from a cast fire cover, so that more dense fire holes can be manufactured, the flame combustion distribution area is larger, and the effective combustion space is more. The second fire holes 32 comprise sunken guide parts 33, the guide parts 33 are in arc transition to the inner cavity of the outer ring fire cover 30 and the top surface 31 of the outer ring along the lateral direction, and the inclined angle of the second fire holes 32 can be effectively reduced through a stamped sunken structure, so that the gas in the inner cavity of the outer ring fire cover 30 is output along a smaller inclined angle, the gas is rotated and mixed more fully, the flame distribution is more uniform, the combustion is more complete, and the combustion efficiency is effectively improved; and the metal or alloy sheet metal is thin and flat as a whole, has uniform thickness and weight far lower than that of a casting, and can effectively reduce the whole weight of the combustor.

In this embodiment, the second fire hole 32 further includes an arcuate transition portion 34; the guide portion 33 extends in the radial direction of the central fire cover 20, and the transition portions 34 are located at both ends of the guide portion 33, so that both ends of the guide portion 33 are arc-shaped and connected to the outer ring top surface 31. This transition portion 34 is located the both ends of guide portion 33, when making the gas output of outer ring fire lid 30 inner chamber, can radially send out towards the slope of the inboard 20 outside of central fire lid and outer ring fire lid 30 outside at the both ends of guide portion 33 to enlarge the radial degree of depth of outer ring flame cover face, make outer ring flame combustion area bigger, more even, the burning is more abundant, effectively improves combustion efficiency.

In this embodiment, the angle between the top surface 31 of the inverted cone outer ring and the horizontal plane is in the range of 4-12 °. Through a plurality of tests, in the range of the inclined included angle, the inclined angle is smaller, and under the condition that the longitudinal covering surface of the fuel gas output by the second fire hole 32 is larger, the flame which is fully mixed and rotated can be formed. .

In this embodiment, the first fire holes 22 on the central outer side 21 are arranged in several layers along the longitudinal direction. The central lateral surface 21 of central fire lid 20 has the first fire hole 22 of a plurality of layers along longitudinal hierarchical arrangement, because central lateral surface 21 is the slope setting, these first fire hole 22 of a plurality of layers can be from inside to outside diffusion to enlarge the coverage of inner ring flame, make inner ring flame combustion area more even, the burning is more abundant, effectively improves combustion efficiency.

In this embodiment, the top of the central gas distribution plate 40 and the outer ring gas distribution plate 50 is provided with a flange 41; the bottoms of the central fire cover 20 and the outer ring fire cover 30 are provided with a back-buckling structure; the flange 41 may snap into a snap-back configuration. Because the central gas distribution disc 40 and the outer ring gas distribution disc 50 are formed by pressing metal or alloy plates, the back-off structure at the bottom of the central gas distribution disc 40 and the outer ring gas distribution disc 50 has an elastic deformation space, but the back-off structure deforms and expands to be clamped into the flange 41, and the back-off structure at the bottom elastically resets, so that the central fire cover 20 is clamped and installed on the central gas distribution disc 40, and the outer ring fire cover 30 is clamped and installed on the outer ring gas distribution disc 50.

In this embodiment, the burner 10 includes a main board 11, and a supporting leg 12 and a positioning frame 13 mounted on the main board 11; the outer ring air distributing disc 50 is installed on the main board 11 through the positioning frame 13, and the output ends of the central injection pipe 60 and the outer ring injection pipe 70 can be clamped on the main board 11. The main board 11 is used for arranging mounting structures of various functional parts, the supporting legs 12 enable the main board 11 to be supported and fixed in the gas stove, and the positioning frame 13 is used for mounting and positioning the outer ring gas distribution plate 50.

Specifically, the main board 11 is provided with a central boss 14 and an outer ring boss 16; a central clamping interface 15 is formed in the central boss 14, and the central injection pipe 60 can be clamped into the central clamping interface 15; an outer ring clamping interface 17 is formed in the outer ring boss 16, and the outer ring injection pipe 70 can be clamped into the outer ring clamping interface 17. The central boss 14 and the outer ring boss 16 can enhance the overall strength of the main board 11 and avoid the deformation of the main board 11; or, when the central injection pipe 60 and the outer ring injection pipe 70 are clamped into the main board 11, the main board 11 deforms.

In the present invention, the main plate 11, the supporting legs 12 and the positioning frame 13 are formed by pressing a metal or alloy plate. The furnace end 10, the fire cover, the gas distribution plate and other parts are all formed by pressing metal or alloy plates, assembly is achieved through welding, clamping or bolt fixing modes, the plates are thin and flat integrally, the thickness is even, the weight is far lower than that of the castings, and the overall weight of the combustor can be effectively reduced.

Furthermore, the central fire cover 20, the outer ring fire cover 30, the main board 11, the supporting legs 12, the positioning frame 13, the gas distribution plate and the injection pipe are all formed by pressing stainless steel plates, and the stainless steel can effectively prevent the combustor from rusting or corroding.

It is to be understood that the present invention is not limited to the above-described embodiments, and that equivalent modifications and substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and that such equivalent modifications and substitutions are to be included within the scope of the appended claims.

Claims

1. A rotary-fire burner, comprising: the burner comprises a burner (10), a central fire cover (20), an outer ring fire cover (30), a central gas distribution disc (40), an outer ring gas distribution disc (50), a central injection pipe (60) and an outer ring injection pipe (70), wherein the central gas distribution disc, the outer ring gas distribution disc, the central injection pipe and the outer ring injection pipe are arranged on the burner (10);

the central fire cover (20) and the outer ring fire cover (30) are formed by pressing metal or alloy plates; the central fire cover (20) is positioned in the middle of the furnace end (10), the outer ring fire covers (30) are annularly arranged and are sleeved at the outer edge of the central fire cover (20) at intervals;

the central fire cover (20) is provided with a conical central outer side surface (21), and the central outer side surface (21) is provided with a plurality of circular first fire holes (22);

the top of the outer ring fire cover (30) is provided with an inverted cone-shaped outer ring top surface (31); the outer ring top surface (31) is formed with a plurality of sunken strip-shaped second fire holes (32) through stamping, and the second fire holes (32) comprise arc-shaped guide parts (33) sunk into the outer ring fire cover (30).

2. The rotary-fire burner of claim 1, wherein: the second fire hole (32) further comprises an arc-shaped transition portion (34); the guide part (33) extends along the radial direction of the central fire cover (20), and the transition parts (34) are positioned at two ends of the guide part (33) so that the two ends of the guide part (33) are in arc transition connection with the outer ring top surface (31).

3. The rotary-fire burner of claim 1, wherein: the included angle between the inverted cone outer ring top surface (31) and the horizontal plane is in the range of 4-12 degrees.

4. The rotary-fire burner of claim 1, wherein: the first fire holes (22) on the outer side surface (21) of the center are arranged in a plurality of layers along the longitudinal direction.

5. The rotary-fire burner of claim 1, wherein: the tops of the central gas distribution disc (40) and the outer ring gas distribution disc (50) are provided with flanges (41); the bottoms of the central fire cover (20) and the outer ring fire cover (30) are provided with a back-buckling structure; the flanging (41) can be clamped into the back-buckling structure.

6. The rotary-fire burner of claim 1, wherein: the furnace end (10) comprises a main board (11), supporting legs (12) and a positioning frame (13), wherein the supporting legs are arranged on the main board (11); the outer ring gas distribution disc (50) is installed on the main board (11) through a positioning frame (13), and the output ends of the central injection pipe (60) and the outer ring injection pipe (70) can be clamped on the main board (11).

7. The rotary-fire burner of claim 6, wherein: the main board (11) is provided with a central boss (14) and an outer ring boss (16); a central clamping interface (15) is formed in the central boss (14), and the central injection pipe (60) can be clamped into the central clamping interface (15); an outer ring clamping interface (17) is formed in the outer ring boss (16), and the outer ring injection pipe (70) can be clamped into the outer ring clamping interface (17).

8. The rotary-fire burner of claim 6, wherein: the main plate (11), the supporting legs (12) and the positioning frame (13) are formed by pressing metal or alloy plates.

9. The rotary-fire burner of claim 8, wherein: the central fire cover (20), the outer ring fire cover (30), the main board (11), the supporting legs (12) and the positioning frame (13) are all formed by pressing stainless steel plates.