CN107013910B - Mixing disk and burner - Google Patents
Mixing disk and burner Download PDFInfo
- Publication number
- CN107013910B CN107013910B CN201611145608.9A CN201611145608A CN107013910B CN 107013910 B CN107013910 B CN 107013910B CN 201611145608 A CN201611145608 A CN 201611145608A CN 107013910 B CN107013910 B CN 107013910B
- Authority
- CN
- China
- Prior art keywords
- burner
- mixing
- disk
- mixing disk
- fuel gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 40
- 238000002347 injection Methods 0.000 claims description 32
- 239000007924 injection Substances 0.000 claims description 32
- 239000002737 fuel gas Substances 0.000 claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to a mixing disk for a burner, comprising: a body configured to have a wavy profile; at least one through hole located at the center of the body; and a plurality of mounting holes configured for mounting the mixing disk. The invention also relates to a burner comprising the above burner disc. The combustion disk and the burner have the advantages of simple structure, easy manufacture, convenient installation and the like, and can better mix the combustible gas or fuel with the air, thereby reducing incomplete combustion caused by insufficient mixing and correspondingly reducing the emission of polluted gas.
Description
Technical Field
The present invention relates to the field of industrial burner construction and, more particularly, to a mixing disk for mixing fuel and air prior to combustion. The invention also relates to a burner comprising the mixing disk.
Background
Industrial burners are known to provide heat, such as by mixing a combustible gas or fuel with air and then burning the mixture for heating a particular workpiece or device.
However, existing burners often have undesirably high emissions, for example, producing more pollutants such as carbon monoxide and nitrogen oxides. With the increasing environmental standards, the requirements of the technicians in this field for the emissions of the burner are also increasing. Accordingly, there is a continuing need for further improvements that improve the mixing of air and combustible gas or fuel in existing combustors.
It is therefore desirable to provide an improved mixing disk and burner incorporating the same to better mix combustible gas or fuel with air, resulting in less pollutant emissions.
Disclosure of Invention
It is an object of the present invention to provide a mixing disk which enables better mixing of combustible gas or fuel with air. Another object of the present invention is to provide a burner comprising the above mixing disk.
The invention aims at realizing the following technical scheme:
a mixing disk for a burner, comprising:
a body configured to have a wavy profile;
At least one through hole located at the center of the body; and
A plurality of mounting holes configured for mounting the mixing disk.
Optionally, at least one through hole is configured to have a smooth or wavy profile.
A burner, comprising:
An air input section comprising an air inlet;
A gas manifold downstream of the air input section and including a fuel gas inlet on an outer wall thereof and a plurality of fuel gas injection ports on an inner wall thereof;
A mixing disk, comprising:
a body configured to have a wavy profile;
At least one through hole located at the center of the body; and
A plurality of mounting holes configured for mounting a mixing disk;
And wherein the plurality of mounting holes of the mixing disk are coupled to the mounting portion located in the air input section by brackets such that the mixing disk is located downstream of the air input section and upstream of the plurality of fuel gas injection ports;
a mixing tube downstream of the gas manifold, the mixing tube including a first injection outlet at a downstream end and a second injection outlet at a middle portion; and
A combustion disk located at the downstream end of the mixing tube and forming a third injection outlet thereon.
Optionally, at least one through hole is configured to have a smooth or wavy profile.
Optionally, the burner tray has a corrugated profile and includes a plurality of through holes to form the third injection outlet.
Optionally, the plurality of fuel gas injection ports are configured to be located in a radial direction of the mixing disk.
Optionally, the mixing disk is attached to the bracket by bolts or screws.
Optionally, the inner wall of the gas manifold comprises a tapered portion and a tubular portion, or the inner wall of the gas manifold comprises a tapered portion.
Optionally, a mounting flange is attached to the outer periphery of the gas manifold.
Alternatively, the second injection outlet is configured as a rectangular, oval or circular aperture.
The mixing disk and the burner have the advantages of simple structure, easy manufacture, convenient installation and the like, and can better mix the combustible gas or fuel with the air, thereby reducing incomplete combustion caused by insufficient mixing and correspondingly reducing the emission of polluted gas.
Drawings
The invention will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely intended to conceptually illustrate the compositions or constructions of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.
FIG. 1 is a schematic side cross-sectional view of one embodiment of a burner of the present invention.
Fig. 2 is a front view of one embodiment of the mixing disk of the present invention.
Fig. 3 is a partial perspective view of the embodiment shown in fig. 1.
FIG. 4 is a front view of one embodiment of a burner tray of the present invention.
Figure 5a is a schematic side cross-sectional view of one embodiment of a gas manifold of the present invention.
Fig. 5b is a schematic side cross-sectional view of another embodiment of a gas manifold of the present invention.
Fig. 5c is a schematic side cross-sectional view of another embodiment of a gas manifold of the present invention.
Fig. 6 is a schematic installation view of the embodiment shown in fig. 1.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.
First, it should be noted that terms of top, bottom, upward, downward, etc. are defined herein with respect to the directions in the respective drawings, which are relative concepts and thus can be changed according to the different positions and different practical states in which they are located. These and other directional terms should not be construed as limiting terms.
Furthermore, it should also be noted that any individual feature described or implicit in the embodiments herein, or any individual feature shown or implicit in the drawings, can still be combined between these features (or their equivalents) to obtain other embodiments of the invention not directly mentioned herein.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
FIG. 1 is a schematic side cross-sectional view of one embodiment of a burner of the present invention. Wherein the burner 100 includes: an air input section 110 comprising an air inlet 111; a gas manifold 120 downstream of the air input section 110 and including a fuel gas inlet 122 on an outer wall thereof and a plurality of fuel gas injection ports 121 on an inner wall thereof; a mixing disk 130 including a through hole 132 and coupled to the mounting portion 112 between the air input section 110 and the gas manifold 120 by a bracket 113 such that the mixing disk 130 is located downstream of the air input section 100 and upstream of the plurality of fuel gas injection ports 121; a mixing tube 140 downstream of the gas manifold 120 and including a first injection outlet 141 at a downstream end of the mixing tube 140 and a second injection outlet 142 at a middle of the mixing tube 140; and a combustion tray 150 located at a downstream end of the mixing tube 140, and a third injection outlet 151 is formed on the combustion tray 150.
Optionally, the air input section 110 includes a flame viewing port 115 thereon.
Optionally, the outer periphery of the gas manifold 120 is provided with a mounting flange 114.
Alternatively, the plurality of fuel gas injection ports 121 are axially distributed on the inner wall of the gas manifold, and the plurality of fuel gas injection ports 121 are arranged in the radial direction of the mixing disk 130.
In the illustrated embodiment, the second injection outlet 142 is rectangular in configuration. However, the second injection outlet 142 may be configured in a circular, oval, or other suitable shape, as desired.
In use, air enters the air input section 111 from the air inlet 111 and is conveyed in the direction indicated by arrow A1 (i.e., the axial direction of the mixing disk 130) and passes through the mixing disk 130. Combustible gas or fuel enters the gas manifold 120 from the fuel gas inlets 122 and is delivered downstream of the mixing disk 130 in the radial direction of the mixing disk 130 through the plurality of fuel gas injection ports 121. The air and the fuel gas are mixed in the mixing pipe 140, and then output through the first injection outlet 141 (arrow B1), the second injection outlet 142 (arrow B2), and the third injection outlet 151 (arrow B3) and burned.
In order to improve combustion efficiency and reduce the generation of polluting gases, it is desirable to thoroughly mix the combustible gas and air prior to combustion.
Fig. 2 is a front view of one embodiment of the mixing disk of the present invention. Wherein the mixing disk 130 comprises: a body 131 having a corrugated profile 133; a through hole 132 located at the center of the body 131; and a plurality of mounting holes 134 for mounting the mixing disk 130.
Alternatively, the through-hole 132 may also be configured to have a corrugated profile.
Alternatively, a plurality of through holes may be provided in the mixing disk.
Fig. 3 is a partial perspective view of the embodiment shown in fig. 1. Wherein the through hole 132 of the mixing disk 130 is configured to have a corrugated profile, and the mixing disk 130 is mounted to the bracket 113 by bolts or screws, and the bracket 113 is then attached to the X-shaped mounting part 112. Wherein the mounting portion 112 has a hole 112a corresponding to the through hole 132.
In use, air passes through the mixing disk 130 in the direction indicated by arrow A1, and the edges of the mixing disk 130 cause turbulence or an arcuate path to the air flow, thereby enabling better mixing of the air flow with the fuel gas exiting in the direction A3. In addition, the design of the mixing disk of the present invention also reduces the pressure drop of the gas and reduces the time and space required for gas mixing.
FIG. 4 is a front view of one embodiment of a burner tray of the present invention. Wherein the burner tray 250 includes: a body 251 having a wavy profile 253; and a plurality of through holes 252, which are located substantially at the center of the body 251. Such a configuration is also advantageous in reducing the pressure drop and promoting combustion of the mixed gas.
Figure 5a is a schematic side cross-sectional view of one embodiment of a gas manifold of the present invention. Wherein the inner wall of the gas manifold 120 comprises: a tapered portion 123a extending from the upstream end of the gas manifold 120 all the way to the mixing tube 130; and a tubular portion 123b including a plurality of fuel gas injection ports 121. This makes the length of the tapered portion 123a relatively long.
Such a configuration is advantageous in accelerating the flow rate of the gas and improving the mixing efficiency.
Fig. 5b is a schematic side cross-sectional view of another embodiment of a gas manifold of the present invention. Wherein the inner wall of the gas manifold 120 includes only a tapered portion 223 extending from an upstream end to a downstream end, and the plurality of fuel gas injection ports 121 are disposed on the tapered portion 223.
Fig. 5c is a schematic side cross-sectional view of another embodiment of a gas manifold of the present invention. Wherein the tubular portion 323b extends from the upstream end of the mixing tube 130 all the way to the downstream end of the gas manifold 120, which results in a relatively short length of the tapered portion 323 a.
Fig. 6 is a schematic installation view of the embodiment shown in fig. 1. Wherein the air supply 200 is attached to the air inlet of the burner 100 and the burner 100 is fixed in place by the mounting flange 114 such that the mixing tube of the burner 100 is inserted into the fire tube 310, wherein a portion 312 of the fire tube 310 is provided with insulation 311 therein and the fire tube 310 is located within the container 320 containing the solution 300. The solution 300 is typically used to cool the fire tube 310, and therefore, insulation 311 is required to be provided in a portion 312 of the fire tube 310 that is not cooled by the solution 300 to prevent the portion 312 from being damaged by overheating.
Alternatively, the air supply 200 may be an air compressor or a fan.
By adopting the mixing disk and the burner, the mixing efficiency of air and fuel gas can be effectively improved, the pressure drop is reduced, and less pollutant gas such as less nitrogen oxides and the like is generated during combustion.
The present specification discloses the present invention with reference to the accompanying drawings and also enables one skilled in the art to practice the invention, including making and using any devices or systems, selecting suitable materials, and using any incorporated methods. The scope of the invention is defined by the claims and encompasses other examples that will occur to those skilled in the art. Such other examples should be considered to be within the scope of protection as determined by the claimed subject matter, so long as such other examples include structural elements that are not literally different from the claimed subject matter, or include equivalent structural elements with insubstantial differences from the literal languages of the claimed subject matter.
Claims (8)
1. A burner, comprising:
An air input section comprising an air inlet;
A gas manifold downstream of the air input section and including a fuel gas inlet on an outer wall thereof and a plurality of fuel gas injection ports on an inner wall thereof;
A mixing disk, comprising:
a body configured to have a wavy profile;
at least one through hole located at the center of the body; and
A plurality of mounting holes configured for mounting the mixing disk;
And wherein the plurality of mounting holes of the mixing disk are coupled to a mounting portion located in the air input section by a bracket such that the mixing disk is located downstream of the air input section and upstream of the plurality of fuel gas injection ports and the undulating profile of the body is positioned adjacent the plurality of fuel gas injection ports;
A mixing tube downstream of the gas manifold, and the mixing tube including a first injection outlet at a downstream end and a second injection outlet in a middle; and
A combustion disk is positioned at the downstream end of the mixing tube and a third injection outlet is formed on the combustion disk.
2. The burner of claim 1, wherein the at least one through hole is configured to have a smooth or wavy profile.
3. Burner according to claim 1 or 2, wherein the burner disc has a corrugated profile and comprises a plurality of through holes to form a third injection outlet.
4. The burner of claim 1 or 2, wherein the air input section is configured to deliver air from an axial direction of the mixing disk and the plurality of fuel gas injection ports are configured to face a radial direction of the mixing disk so as to deliver fuel gas in the radial direction of the mixing disk.
5. Burner according to claim 1 or 2, characterized in that the mixing disk is attached to the bracket by means of bolts or screws.
6. The burner of claim 1 or 2, wherein the inner wall of the gas manifold comprises a tapered portion and a tubular portion, or the inner wall of the gas manifold comprises a tapered portion.
7. A burner as claimed in claim 1 or 2, wherein a mounting flange is attached to the periphery of the gas manifold.
8. Burner according to claim 1 or 2, wherein the second injection outlet is configured as a rectangular, oval or circular aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145608.9A CN107013910B (en) | 2016-12-13 | 2016-12-13 | Mixing disk and burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145608.9A CN107013910B (en) | 2016-12-13 | 2016-12-13 | Mixing disk and burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013910A CN107013910A (en) | 2017-08-04 |
| CN107013910B true CN107013910B (en) | 2024-06-18 |
Family
ID=59439688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145608.9A Active CN107013910B (en) | 2016-12-13 | 2016-12-13 | Mixing disk and burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013910B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202955694U (en) * | 2012-11-12 | 2013-05-29 | 志豪工业有限公司 | Burner structure |
| CN206300187U (en) * | 2016-12-13 | 2017-07-04 | 霍尼韦尔环境自控产品（天津）有限公司 | Mixing pan and burner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841340A (en) * | 2016-05-13 | 2016-08-10 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
-
2016
- 2016-12-13 CN CN201611145608.9A patent/CN107013910B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202955694U (en) * | 2012-11-12 | 2013-05-29 | 志豪工业有限公司 | Burner structure |
| CN206300187U (en) * | 2016-12-13 | 2017-07-04 | 霍尼韦尔环境自控产品（天津）有限公司 | Mixing pan and burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013910A (en) | 2017-08-04 |
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| GR01 | Patent grant |