CN209147095U - Nozzle for combustor and combustor - Google Patents
Nozzle for combustor and combustor Download PDFInfo
- Publication number
- CN209147095U CN209147095U CN201821578862.2U CN201821578862U CN209147095U CN 209147095 U CN209147095 U CN 209147095U CN 201821578862 U CN201821578862 U CN 201821578862U CN 209147095 U CN209147095 U CN 209147095U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- section
- burner
- primary air
- air
- 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.)
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Links
- 230000005855 radiation Effects 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000013589 supplement Substances 0.000 claims abstract description 28
- 239000000567 combustion gas Substances 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Landscapes
- Gas Burners (AREA)
Abstract
The utility model discloses a nozzle and combustor for combustor, a serial communication port, the nozzle body supplements section, mixing segment including the section of admitting air, primary air that connect gradually, the gas inlet has been seted up in the section of admitting air, be provided with the radiation hybrid chamber in the mixing segment, the radiation hybrid chamber runs through primary air and supplements the section and advances the hole intercommunication with the gas, a plurality of cooling holes are seted up around the radiation hybrid chamber on the mixing segment, the slot is seted up with the junction that primary air supplyed the section to mixing segment, a plurality of cooling holes and radiation hybrid chamber parallel arrangement and form cooling channel with the slot intercommunication. When the air-cooling type nozzle is used, air can be supplemented timely, and the radiation mixing cavity is cooled, so that the temperature of the nozzle cannot be increased, the nozzle can be kept in a low-temperature state for a long time to realize a stable injection function, and the combustion efficiency is improved.
Description
Technical field
The utility model belongs to technical field of burner more particularly to a kind of nozzle and burner for burner.
Background technique
Currently, the burner of the most of gas cooker products in China generally uses partly-premixed air type (atmospheric burning type
Mode) and fully premixed air type (flameless burning mode, that is, infrared burner), all too busy to get away nozzle of both burners.
Existing nozzle primary air ratio is limited, continues after a period of use, nozzle temperature rise is excessively high cause nozzle injection jet stream to
Upper " drift " injection deteriorates, and generates imperfect combustion, and CO discharge is excessively high in flue gas, pollutes environment, while efficiency of combustion also reduces.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of nozzles and burner for burner.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of nozzle for burner, the nozzle body include sequentially connected air inlet section, primary air supplement section,
Mixing section offers combustion gas entering opening in the air inlet section, radiation mixing chamber, the radiation mixing chamber is provided in the mixing section
Section is supplemented through primary air and is connected to combustion gas entering opening, opens up multiple coolings around radiation mixing chamber on the mixing section
The junction of hole, the mixing section and primary air supplement section opens up groove, and the multiple cooling hole is parallel with radiation mixing chamber
It is arranged and is connected to form cooling duct with groove.
The utility model is also characterized by
The primary air supplement section offers multiple primary air holes, the one end and the external world in the multiple primary air hole
Connection, the other end connect with the radiation mixing chamber.
The primary air supplement section uses hexagonal prisms structure.
The primary air hole is at least six, and is separately positioned on each side of the hexagonal prisms structure.
Chamfering is arranged in the two sides of the primary air supplement section.
The combustion gas entering opening includes sequentially connected air inlet, shrinkage hole and spray orifice, and the air inlet is used for and connect combustion
The gas-guide tube of gas source is connected to, and the spray orifice is connected to radiation mixing chamber.
The length of the spray orifice is 1-1.2 times of its aperture.
The utility model additionally provides a kind of burner,
A kind of burner is used to burn including burner body, ejector pipe and one kind as described in above-mentioned any one
The nozzle of device, a kind of mixing section of the nozzle for burner are connect with ejector pipe.
Compared with prior art, the utility model can increase primary air amount, improve primary air ratio, improve nozzle
Air ejection ability, premix ability, reduce the temperature rise of nozzle, to improve the combustion stability of gas-cooker, reduce an oxidation
Carbon emission promotes the thermal efficiency.
Detailed description of the invention
Fig. 1 is a kind of internal structure chart of nozzle for burner；
Fig. 2 is a kind of external structure of nozzle for burner；
Fig. 3 is a kind of overall effect figure of nozzle for burner；
Fig. 4 is a kind of partial enlarged view of the air inlet section of nozzle for burner；
Fig. 5 is a kind of cross-sectional view of the mixing section of nozzle for burner；
Fig. 6 is a kind of usage state diagram of nozzle for burner.
Description of symbols
1: air inlet section, 11: air inlet, 12: shrinkage hole, 13: spray orifice, 2: primary air supplement section, 21: primary air hole,
22: chamfering, 3: mixing section, 31: radiation mixing chamber, 32: cooling hole, 4: groove.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit utility model.
Embodiment 1
The utility model embodiment 1 provides a kind of nozzle for burner, as shown in Figure 1, the nozzle body includes
Sequentially connected air inlet section 1, primary air supplement section 2, mixing section 3.Wherein, air inlet section 1 connects with the gas-guide tube for connecting fuel gas source
It connects, mixing section 3 is connect with the ejector pipe of burner.At work, combustion gas enters nozzle from air inlet section 1 to nozzle, then successively leads to
Primary air supplement section 2 and mixing section 3 are crossed, ejector pipe is entered back into and is transported in burner and burn.
Run through in the air inlet section 1 and offers combustion gas entering opening.Radiation mixing chamber 31, radiation are provided in the mixing section 3
Mixing chamber 31 is connected to through primary air supplement section 2 and with the combustion gas entering opening of air inlet section 1.The mixing section 3 is mixed around radiation
It closes chamber 31 and opens up multiple cooling holes 32, the mixing section 3 and the junction of primary air supplement section 2 open up the ditch with external connection
Slot 4, the multiple cooling hole 32 are arranged in parallel with radiation mixing chamber 31 and are connected to form cooling duct with groove 4.
In the present embodiment, combustion gas enters air inlet section 1 from combustion gas entering opening, and the air outside nozzle supplements section 2 by primary air
Primary air hole 21 enter nozzle, combustion gas and primary air radiate mixing chamber 31 by volume inspiration simultaneously, in radiation mixing chamber 31
In tentatively mix.
Radiation mixing chamber 31 is that straight cylinder hole is composed with bellmouth, and bellmouth is transitional pore.
Multiple cooling holes 32 provided around mixing chamber 31 are radiated, specifically, multiple cooling holes 32 are around radiation mixing chamber
31 straight cylinder hole is uniformly arranged.Cooling hole 32 is communicated with groove 4, and the air outside nozzle is entered through groove 4 and cooling hole 32
Mixing section 3, and be transported in ejector pipe together with the mixed gas of radiation mixing chamber 31.This partial air had both played supplement air
Amount improves the primary air ratio of nozzle, while the flowing of air also functions to the effect of cooling radiation mixing chamber 31, due to cooling
Hole 32 is evenly arranged around radiation mixing chamber 31, forms multiple cooling ducts with groove 4, and the cold air stream for flowing through cooling duct is compeled
The gaseous mixture for coming out radiation mixing chamber 31 can only be flowed along nozzle centre axis, play the role of " guide sleeve ".
In this way, using the above scheme, can timely supplement air capacity, while playing cooling work to radiation mixing chamber 31
With, therefore will not nozzle temperature be increased, so that nozzle is maintained at the function of stablizing injection under low-temperature condition for a long time, increases
Efficiency of combustion.
Preferably, the primary air supplement section 2 offers multiple primary air holes 21, the multiple primary air hole 21
One end be in communication with the outside, the other end connects with the radiation mixing chamber 31.In this way, primary air ratio is improved, so that
It burns more abundant.
Preferably, as shown in Figure 3 and Figure 5, the primary air supplement section 2 uses hexagonal prisms structure.The primary air
Hole 21 is at least six, and is separately positioned on each side of the hexagonal prisms structure.The two sides of the primary air supplement section 2
Chamfering 22 is set.In this way, groove 4 can preferably be arranged between primary air supplement section 2 and mixing section 3.Primary air hole 21
The absorption outside air that each side of hexagonal prisms can be comprehensive is arranged in enter, mixes air preferably with combustion gas.Two sides
Setting chamfering 22 can be reduction air intake resistance, increase air quantity.
In the present embodiment, as shown in figure 4, combustion gas entering opening includes sequentially connected air inlet 11, shrinkage hole 12 and spray orifice 13.
For being connected to gas-guide tube, the spray orifice 13 is connected to the air inlet 11 with radiation mixing chamber 31.The length of the spray orifice 13 is
1-1.2 times of its aperture.
In the present embodiment, air inlet 11 is straight hole, and tail end is the shrinkage hole 12 of a taper, shrinkage hole 12 and 13 nothing of spray orifice
Seam docking, spray orifice 13 are small straight cylinder hole with high accuracy, and the length in straight cylinder hole is 1~1.2 times of its aperture.
In this way, using the above scheme, 13 mouthfuls of spray orifice of exit flow can be stablized.
A kind of application method of nozzle for burner provided in this embodiment are as follows:
As shown in fig. 6, nozzle one end provided by the utility model is connect by screw thread with gas-guide tube, the other end passes through screw thread
It being connect with the ejector pipe of burner, combustion gas enters air inlet section 1, by air inlet 11 to shrinkage hole 12, due to the variation of aisle spare,
Through 13 high speed ejection of spray orifice.The combustion gas of ejection drives primary air from primary sky by generating negative pressure when primary air supplement section 2
Stomata 21 enters, and infiltrates in radiation mixing chamber 31 together with combustion gas and be mutually sufficiently mixed.Mixed gas is mixed from radiation
Chamber 31 also generates negative pressure when being transported to ejector pipe, cooling air is driven to suck through cooling duct.The air sucked from cooling duct
Both supplement air capacity had been played, has improved the primary air ratio of nozzle, while the flowing of air also functions to cooling radiation mixing chamber 31
Effect, due to these holes around radiation mixing chamber be evenly arranged, these cold air streams force radiation mixing chamber come out sky,
Firing gaseous mixture can only flow along ejector pipe central axis without running into injection tube wall, play the role of " guide sleeve ".
Using the above scheme, compared with prior art, the utility model for burner nozzle when in use can and
When supplement air capacity, while cooling effect is played to radiation mixing chamber, therefore will not nozzle temperature be increased, enable nozzle
It is maintained at the function of stablizing injection under low-temperature condition for a long time, increases efficiency of combustion.
Embodiment 2
The utility model embodiment 2 provides a kind of burner, including burner body, ejector pipe and such as 1 institute of embodiment
A kind of nozzle for burner stated, a kind of mixing section of the nozzle for burner are connect with ejector pipe.In this way, adopting
With above scheme, it can reduce since the constant burned for long time of burner passes to the temperature rise that nozzle generates nozzle, make
Nozzle can be maintained at the function of stablizing injection under low-temperature condition, burner normal use for a long time.
The above, the only preferred embodiment of the utility model, are not intended to limit the protection of the utility model
Range.
Claims (8)
1. a kind of nozzle for burner, which is characterized in that the nozzle body includes sequentially connected air inlet section (1), one
Secondary air supplements section (2), mixing section (3)；Combustion gas entering opening is offered in the air inlet section (1), is provided in the mixing section (3)
It radiates mixing chamber (31), the radiation mixing chamber (31) is connected to through primary air supplement section (2) and with combustion gas entering opening, described
It is opened up multiple cooling holes (32) on mixing section (3) around radiation mixing chamber (31), the mixing section (3) and primary air supplement section
(2) junction opens up groove (4), the multiple cooling hole (32) and radiation mixing chamber (31) be arranged in parallel and with groove (4)
Connection forms cooling duct.
2. a kind of nozzle for burner according to claim 1, which is characterized in that the primary air supplements section
(2) multiple primary air holes (21) are offered, one end of the multiple primary air hole (21) is in communication with the outside, the other end and institute
Radiation mixing chamber (31) is stated to connect.
3. a kind of nozzle for burner according to claim 2, which is characterized in that the primary air supplements section
(2) hexagonal prisms structure is used.
4. a kind of nozzle for burner according to claim 3, which is characterized in that the primary air hole (21) is
At least six, and it is separately positioned on each side of the hexagonal prisms structure.
5. a kind of nozzle for burner according to claim 1, which is characterized in that the primary air supplements section
(2) chamfering (22) are arranged in two sides.
6. a kind of nozzle for burner described in -5 any one according to claim 1, which is characterized in that the combustion gas into
Hole includes sequentially connected air inlet (11), shrinkage hole (12) and spray orifice (13), and the air inlet (11) is used for and connect combustion gas
The gas-guide tube in source is connected to, and the spray orifice (13) is connected to radiation mixing chamber (31).
7. a kind of nozzle for burner according to claim 6, which is characterized in that the length of the spray orifice (13) is
1-1.2 times of its aperture.
8. a kind of burner, which is characterized in that including burner body, ejector pipe and such as claim 1-7 any one institute
A kind of nozzle for burner stated, a kind of mixing section of the nozzle for burner are connect with ejector pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578862.2U CN209147095U (en) | 2018-09-26 | 2018-09-26 | Nozzle for combustor and combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578862.2U CN209147095U (en) | 2018-09-26 | 2018-09-26 | Nozzle for combustor and combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209147095U true CN209147095U (en) | 2019-07-23 |
Family
ID=67267243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821578862.2U Active CN209147095U (en) | 2018-09-26 | 2018-09-26 | Nozzle for combustor and combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209147095U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207125A (en) * | 2018-09-26 | 2019-09-06 | 华帝股份有限公司 | Nozzle for combustor and combustor |
| CN110440446A (en) * | 2019-08-09 | 2019-11-12 | 广东万和新电气股份有限公司 | A kind of jet tube assembly |
-
2018
- 2018-09-26 CN CN201821578862.2U patent/CN209147095U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207125A (en) * | 2018-09-26 | 2019-09-06 | 华帝股份有限公司 | Nozzle for combustor and combustor |
| CN110440446A (en) * | 2019-08-09 | 2019-11-12 | 广东万和新电气股份有限公司 | A kind of jet tube assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |