CN205878163U - High -power low NOx burner - Google Patents
High -power low NOx burner Download PDFInfo
- Publication number
- CN205878163U CN205878163U CN201620882675.8U CN201620882675U CN205878163U CN 205878163 U CN205878163 U CN 205878163U CN 201620882675 U CN201620882675 U CN 201620882675U CN 205878163 U CN205878163 U CN 205878163U
- Authority
- CN
- China
- Prior art keywords
- center
- air channel
- section
- spiral case
- power low
- 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
Abstract
The utility model discloses a high -power low NOx burner, including spiral case, peripheral wind channel, central wind channel, co -combustion section, peripheral fuel gas jetting device and central fuel gas jetting device, the spiral case is used for being connected with the air outlet of fan to form swirlling air stream, the spiral case peripheral wind channel with the co -combustion section communicates in proper order, forms peripheral cavity, the center wind channel is located in the peripheral cavity, just the one end in center wind channel is connected the inner chamber of spiral case, the other end extends the co -combustion section, peripheral fuel gas jetting device is located in the peripheral wind channel, and the orientation the gas is sprayed to the co -combustion section, the center fuel gas jetting device set up center wind channel, and orientation the gas is sprayed to the co -combustion section. It is relatively poor that above -mentioned high -power low NOx burner can solve present deep or light type combustor mixture effect, leads to the lower and wind channel of combustion efficiency to set up the higher problem of the unreasonable use cost who leads to.
Description
Technical field
This utility model relates to burner design field, particularly relates to a kind of high-power low NO.
Background technology
Burner, is the equipment for fuel with air mixed combustion in certain proportion.The efficiency of combustion of burner, manufacture
Cost, equipment volume, use cost are the important indicators of its function admirable.Dividing according to combustion system, burner can be by many
Type.Bias combustion type burner is then one therein, and the dense-dilute burner combustion technology that bias combustion type burner uses is one
Planting the combustion technology that can reduce NOx, this technology is different with air stoichiometry by whole combustion process is artificially divided into combustion gas
In some stages, complete stage by stage so that the burning of combustion gas crosses light and three regions of after-flame in combustion gas overrich, combustion gas respectively, from
And reach combustion process suppresses the purpose that harmful NOx generates.
At work, combustion gas is poor from the mixed effect of air or cannot meet different work for current shade type burner
Reasonable coordination under condition, and then cause the burning of fuel not fully, cause efficiency of combustion relatively low.Meanwhile, due to air channel
Arranging unreasonable, the pressure itself loss of current shade type burner is relatively big, and person can cause the power of blower fan to increase, Jin Erhui
Increase and produce and use cost.
Utility model content
The shade type burner mixed effect that the technical problems to be solved in the utility model is current is poor, causes burning effect
Rate is relatively low and air channel arranges the problem that the unreasonable use cost caused is higher.
In order to solve above-mentioned technical problem, the technical scheme that this utility model provides is:
A kind of high-power low NO, including spiral case, periphery air channel, air channel, center, mixed combustion section, periphery gas injection
Injection device and center fuel gas ejecting device；Wherein:
Described spiral case is for being connected with the air outlet of blower fan, to form rotational flow air stream；
Described spiral case, described periphery air channel and described mixed combustion section are sequentially communicated, and form peripheral cavity；
Air channel, described center is positioned at described peripheral cavity body, and the one end in air channel, described center connects the interior of described spiral case
Chamber, the other end extends described mixed combustion section；
Described periphery fuel gas ejecting device is positioned at described periphery air channel, and sprays combustion gas towards described mixed combustion section；
Described center fuel gas ejecting device is arranged in air channel, described center, and towards the injection combustion of described mixed combustion section
Gas.
Further, in above-mentioned high-power low NO, air channel, described center includes the first reducing section and first isometrical
Section；Described first reducing section is positioned at described spiral case, and one end and described first that described first reducing section cross-sectional area is less
Isometrical section of connection, described first isometrical section extends to described mixed combustion section from described spiral case.
Further, in above-mentioned high-power low NO, described first reducing section with described first isometrical section coaxial point
Cloth, and all coaxially arranged with described peripheral cavity.
Further, in above-mentioned high-power low NO, described center fuel gas ejecting device include center Gas Pipe, in
Heart gas spray head and center spigot；Described center Gas Pipe is coaxially arranged with air channel, described center, described center gas spray head
It is arranged on the end of described center Gas Pipe；Described center spigot is fixed on described center Gas Pipe for fixing described center
One end of gas spray head.
Further, in above-mentioned high-power low NO, described periphery fuel gas ejecting device includes:
It is fixed on the fuel chamber outside described periphery air channel；With,
One end connects with described fuel chamber, and the other end introduces described periphery air channel, and to the ejection combustion of described mixed combustion section
Multiple arms of gas.
Further, in above-mentioned high-power low NO, multiple described arms are along the axis with described peripheral cavity
Parallel direction extends.
Further, in above-mentioned high-power low NO, multiple described arms are provided with shower nozzle, and described shower nozzle is paired
Distribution, multipair described shower nozzle at least includes first pair of shower nozzle and second pair of shower nozzle, and described first pair of shower nozzle is porous nozzle, described
Second pair of shower nozzle is single hole shower nozzle, the direction jet towards the axis being parallel to described peripheral cavity of described single hole shower nozzle.
Further, in above-mentioned high-power low NO, described periphery air channel includes the second reducing section and second isometrical
Section；The inner space of the bigger one end of described second reducing section cross-sectional area and described spiral case, one end of described second isometrical section
One end less with described second reducing section cross-sectional area is docked, and the other end is connected with described mixed combustion section.
Further, in above-mentioned high-power low NO, being provided with air door in described spiral case, described air door is arranged on institute
State the position that spiral case is connected mutually with described periphery air channel, for controlling the air capacity flowing in described periphery air channel.
Further, in above-mentioned high-power low NO, described air door realizes driving by drive mechanism, described transmission
Mechanism is positioned at described spiral case.
The beneficial effects of the utility model are:
In the high-power low NO that this utility model provides, the rotational flow air stream of formation is divided into two strands by spiral case, and
Respectively enteing in air channel, center and periphery air channel, periphery fuel gas ejecting device and center fuel gas ejecting device can be to air mixture sections
Interior injection combustion gas, this jet flow gas combustion mixes with rotational flow air and has preferable mixed effect, can improve efficiency of combustion.Same with this
Time, the high-power low NO that this utility model provides uses inside and outside sheathed air channel, center and periphery air channel air feed simultaneously,
Central passage is provided with center fuel gas ejecting device simultaneously, in periphery air channel, is provided with periphery fuel gas ejecting device, above-mentioned
Classification air feed and classification supply the mode of combustion gas to have preferable accommodative facility, and then can preferably regulate bias combustion burning
Device combustion gas under different operating modes and the proportioning of air, provide and deliver from forming oxygen deprivation region and oxygen-rich area by classification simultaneously, lean
The nitrogen oxides that oxygen-rich area generates can be carried out also, reaching preferable combustion efficiency by the reactant in oxygen district.
Being experimentally confirmed, the high-power low NO that this utility model provides i.e. can reach relatively without pipe cyclone
Good mixing and combustion efficiency, it is possible to then can reduce the pressure itself loss of shade type burner without pipe cyclone, also will not
The power causing the blower fan connected with spiral case increases, and then also will not increase production and use cost.
Accompanying drawing explanation
The structural representation of the high-power low NO that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the rearview of Fig. 1；
Fig. 3 is the right view of Fig. 1；
Fig. 4 is the left view of Fig. 1；
Fig. 5 is the schematic internal view under visual angle shown in Fig. 4；
The internal structure schematic diagram of the high-power low NO that Fig. 6 provides for this utility model embodiment.
Detailed description of the invention
The utility model discloses a kind of high-power low NO, those skilled in the art can use for reference present disclosure,
It is suitably modified technological parameter to realize.It is important to note that those skilled in the art are come by all similar replacements and change
Saying and be apparent from, they are considered as being included in this utility model, and related personnel substantially can be without departing from this practicality
On the basis of novel content, spirit and scope, content described herein it is modified or suitably changes and combine, realize and answer
Use this utility model technology.
In this utility model, unless otherwise stated, Science and Technology noun used herein has this area
The implication that technical staff is generally understood that.
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with being embodied as
The utility model is described in further detail for example.
Refer to Fig. 1-6, this utility model embodiment provides a kind of high-power low NO, and this burner includes spiral case
1, periphery air channel 2, air channel, center 3, mixed combustion section 4, periphery fuel gas ejecting device 5 and center fuel gas ejecting device 6.
Spiral case 1 is the air intake part of high-power low NO, generally connects with the air outlet of blower fan, empty to form eddy flow
Air-flow.Concrete, the air outlet of blower fan extends with the tangential direction of spiral case 1.
Mixed combustion section 4 is the position mixing with air for combustion gas and burning, spiral case 1, periphery air channel 2 and mixed combustion section
4 are sequentially communicated, to form the peripheral cavity of high-power low NO.
In the peripherally located cavity in air channel, center 3, the one end in air channel, center 3 connects the inner chamber of spiral case 1, and the other end extends mixing
Burning zone 4, the air in spiral case 1 can enter air channel, center 3, it is achieved from the middle part air feed of peripheral cavity.
Periphery air channel 2 is outer with air channel, center 3 interior sheathed, and periphery air channel 2 is also and the inner space of spiral case 1, for outside
Enclosing air feed, air channel, center 3 is at centre air feed.After in the inner chamber of rotational flow air stream entrance spiral case 1, it is partly into
Periphery air channel 2, another part enters in air channel, center 3.Refer to Fig. 3 and 6, air channel, center 3 can be by fixing bar 7 and periphery
The inwall in air channel 2 is fixing to be connected.
Periphery fuel gas ejecting device 5 is positioned at periphery air channel 2, and sprays combustion gas towards mixed combustion section 4.Center gas injection
In the centrally disposed air channel of injection device 63, and spray combustion gas towards mixed combustion section 4.
In the high-power low NO that this utility model embodiment provides, the rotational flow air stream of formation is divided into by spiral case 1
Two strands, and respectively enter in air channel, center 3 and periphery air channel 2, periphery fuel gas ejecting device 5 and center fuel gas ejecting device 6 energy
Spraying combustion gas in air mixture section 4, this jet flow gas combustion mixes with rotational flow air and has preferable mixed effect, can improve combustion
Burn efficiency.Meanwhile, the high-power low NO that the present embodiment provides uses inside and outside sheathed air channel, center 3 and periphery wind
Road 2 air feed simultaneously, is provided with center fuel gas ejecting device 6 in central passage 3 simultaneously, is provided with periphery combustion in periphery air channel 2
Gas spraying device 5, above-mentioned classification air feed and classification have preferable accommodative facility for the mode of combustion gas, and then can preferably adjust
The combustion gas under different operating modes of the joint bias combustion burner and the proportioning of air, provided and delivered from forming oxygen-depleted zone by classification simultaneously
Territory and oxygen-rich area, the nitrogen oxides that oxygen-rich area generates can be carried out also, reaching effect of preferably burning by the reactant in oxygen-depleted zone
Really.
Being experimentally confirmed, the high-power low NO that the present embodiment provides i.e. can reach without pipe cyclone preferably
Mixing and combustion efficiency, it is possible to then can reduce without pipe cyclone shade type burner pressure itself loss, also will not lead
Cause the power increase of the blower fan connected with spiral case 1, and then also will not increase production and use cost.
The high-power low NO that the present embodiment provides can by air channel, center 3 and periphery air channel 2 implement combustion gas and
The regulation of air, it is achieved bigger regulation ratio, and then enable to high-power low NO and be in more operating point, meet
More operating mode, adapts to the load change drastically of the equipment such as boiler.
Refer to Fig. 1,2 and 6, in the present embodiment, air channel, center 3 includes the first reducing section 31 and first isometrical section 32.The
One reducing section 31 is positioned at spiral case 1, and one end that the first reducing section 31 cross-sectional area is less connects for isometrical with first section 32, and first etc.
Footpath section 32 extends to mixed combustion section 4 from spiral case 1.In such cases, after air enters air channel, center 3, the first reducing section 31 can rise
To the effect accelerated, and then rotational flow air stream can be made preferably to keep, and then be preferably that follow-up mixing is implemented to prepare.Specifically
, the first reducing section 31 is coaxially distributed for isometrical with first section 32, and coaxially arranged with peripheral cavity, reaches preferable center air feed
Effect.
Referring again to Fig. 6, center fuel gas ejecting device 6 can include center Gas Pipe 61, center gas spray head 62 and
Center spigot 63, center Gas Pipe 61 is coaxially arranged with air channel, center 3, the centrally disposed Gas Pipe 61 of center gas spray head 62
End.Center spigot 63 is fixed on center Gas Pipe 61 one end for fixed center gas spray head 62.Center spigot
The effect of 63 is that the air maintaining entrance center Gas Pipe 61 is in eddy flow state, is not result in that high-power low NO produces
The raw bigger pressure loss, therefore, generally speaking, not only can preferably play immixture, will not improve the merit of blower fan simultaneously
Rate, also will not increase production and the use cost of high-power low NO.
Refer to Fig. 6, in the high-power low NO that the present embodiment provides, center fuel gas ejecting device 6 can include
Center Gas Pipe 61, center gas spray head 62 and center spigot 63, three is coaxially arranged.Center Gas Pipe 61 and air channel, center
3 is coaxially arranged, the end of the centrally disposed Gas Pipe of center gas spray head 62 61.Center spigot 63 is fixed on center Gas Pipe
61 for one end of fixed center gas spray head 62.The effect of center spigot 63 is only played maintenance air stream and is in eddy flow
State, and center spigot 63 is positioned at the inside in air channel, center 3, therefore for whole high-power low NO,
The power of blower fan will not be increased.
Referring again to Fig. 6, periphery fuel gas ejecting device 5 can include fuel chamber 51 and multiple arm 52.Fuel chamber 51
Being fixed on the outside in periphery air channel 2, one end of multiple arms 52 connects with fuel chamber 51, and the other end introduces periphery air channel 2, is used for
Combustion gas is sprayed to mixed combustion section 4.Multiple arms 52 multiple spot jet in mixed combustion section 4, can improve mixed effect.Preferably
, above-mentioned multiple arms 52 are uniformly distributed along the outside of center Gas Pipe 61.The jet segment of multiple arms 52 can arrange spray
Head.Multiple arms 52 can extend each along the direction parallel with the axis of peripheral cavity.
Refer to Fig. 3, multiple arms 52 are provided with shower nozzle, and shower nozzle can be distributed in pairs.Multipair shower nozzle at least includes
A pair shower nozzle and second pair of shower nozzle.First pair of shower nozzle is porous nozzle, and second pair of shower nozzle is single hole shower nozzle, single hole shower nozzle towards
It is parallel to the axis direction jet of peripheral cavity.
Refer to Fig. 1,2 and 6, periphery air channel 2 can include the second reducing section 21 and second isometrical section 22；Second reducing section
The inner space of the bigger one end of 21 cross-sectional areas and spiral case 1, one end of second isometrical section 22 and the second reducing section 21 cross section
Long-pending less one end docking, the other end is connected with mixed combustion section 4.As a same reason, the second reducing section 21 can accelerate air flowing,
The most preferably keep eddy flow state.
In order to preferably be adjusted into the air capacity in periphery air channel 2, in spiral case 1, air door 11 can be provided with.Air door 11
It is arranged on the position that spiral case 1 is connected with periphery air channel 2 phase, for controlling the air capacity flowing in periphery air channel 2.Concrete, this
In embodiment, air door 11 realizes driving by drive mechanism, and drive mechanism is positioned at spiral case 1.Drive mechanism is arranged on spiral case 1
In, artificial damage can be reduced, the injury to operator can also be avoided simultaneously.
The structure of the high-power low NO that the present embodiment provides can be divided into multiple assembly to removably connect, it is simple to portion
The replacing of part and maintenance, reduce the artificial and machine cost installed.The peripheral components of high-power low NO can arrange many
Individual installation position, it is simple to high-power low NO adapts to different outside installation environments.High-power low NO can be arranged
Observation port and installing hole, it is simple to observe working condition and connection.
The high temperature position of the high-power low NO that the present embodiment provides, such as mixed combustion district, resistance to height can be used
Adiabator is made, and mixed combustion district can use screw thread or pin to be attached with other parts, it is simple to dismounting and change, Jin Erneng
Reduce the replacement cost of parts.
The high-power low NO that the present embodiment provides can be at periphery air channel 2 and air channel, center 3 regulating gas simultaneously
With air capacity, and then so that deep or light zone position i.e. ratio changes, and then the generation of nitrogen oxides can be reduced.
It should be noted that in the application, high-power low NO can reduce the generation of nitrogen oxides in combustion process,
Therefore can reach the effect of low nitrogen, the discharge of nitrogen oxides can reach 60mg/m3(@3%O2).The burner of high-power finger
Power is more than 5.6MW.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (10)
1. a high-power low NO, it is characterised in that include spiral case, periphery air channel, air channel, center, mixed combustion section,
Periphery fuel gas ejecting device and center fuel gas ejecting device；Wherein:
Described spiral case is for being connected with the air outlet of blower fan, to form rotational flow air stream；
Described spiral case, described periphery air channel and described mixed combustion section are sequentially communicated, and form peripheral cavity；
Air channel, described center is positioned at described peripheral cavity body, and the one end in air channel, described center connects the inner chamber of described spiral case, separately
One end extends described mixed combustion section；
Described periphery fuel gas ejecting device is positioned at described periphery air channel, and sprays combustion gas towards described mixed combustion section；
Described center fuel gas ejecting device is arranged in air channel, described center, and sprays combustion gas towards described mixed combustion section.
High-power low NO the most as claimed in claim 1, it is characterised in that air channel, described center includes the first reducing section
Isometrical with first section；Described first reducing section is positioned at described spiral case, and one end that described first reducing section cross-sectional area is less
Connecting with described first isometrical section, described first isometrical section extends to described mixed combustion section from described spiral case.
High-power low NO the most as claimed in claim 2, it is characterised in that described first reducing section and described first etc.
Footpath section is coaxially distributed, and all coaxially arranged with described peripheral cavity.
High-power low NO the most as claimed in claim 2, it is characterised in that during described center fuel gas ejecting device includes
Heart Gas Pipe, center gas spray head and center spigot；Described center Gas Pipe is coaxially arranged with air channel, described center, described in
Heart gas spray head is arranged on the end of described center Gas Pipe；Described center spigot is fixed on described center Gas Pipe for solid
One end of fixed described center gas spray head.
High-power low NO the most as claimed in claim 1, it is characterised in that described periphery fuel gas ejecting device includes:
It is fixed on the fuel chamber outside described periphery air channel；With,
One end connects with described fuel chamber, and the other end introduces described periphery air channel, and to the ejection combustion gas of described mixed combustion section
Multiple arms.
High-power low NO the most as claimed in claim 5, it is characterised in that multiple described arms along with described periphery
The direction that the axis of cavity is parallel extends.
High-power low NO the most as claimed in claim 6, it is characterised in that multiple described arms are provided with shower nozzle,
Described shower nozzle is distributed in pairs, and multipair described shower nozzle at least includes that first pair of shower nozzle and second pair of shower nozzle, described first pair of shower nozzle are
Porous nozzle, described second pair of shower nozzle is single hole shower nozzle, described single hole shower nozzle towards the axis being parallel to described peripheral cavity
Direction jet.
High-power low NO the most as claimed in claim 1, it is characterised in that described periphery air channel includes the second reducing section
Isometrical with second section；The inner space of the bigger one end of described second reducing section cross-sectional area and described spiral case, described second etc.
One end less with described second reducing section cross-sectional area, one end of footpath section is docked, and the other end is connected with described mixed combustion section.
High-power low NO the most as claimed in claim 8, it is characterised in that be provided with air door in described spiral case, described
Air door is arranged on the position that described spiral case is connected mutually with described periphery air channel, for controlling the air flowing in described periphery air channel
Amount.
High-power low NO the most as claimed in claim 9, it is characterised in that described air door is realized by drive mechanism
Driving, described drive mechanism is positioned at described spiral case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620882675.8U CN205878163U (en) | 2016-08-15 | 2016-08-15 | High -power low NOx burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620882675.8U CN205878163U (en) | 2016-08-15 | 2016-08-15 | High -power low NOx burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878163U true CN205878163U (en) | 2017-01-11 |
Family
ID=57703178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620882675.8U Active CN205878163U (en) | 2016-08-15 | 2016-08-15 | High -power low NOx burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205878163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196055A (en) * | 2016-08-15 | 2016-12-07 | 罗诺克兹（北京）能源设备技术有限公司 | A kind of high-power low NO |
-
2016
- 2016-08-15 CN CN201620882675.8U patent/CN205878163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196055A (en) * | 2016-08-15 | 2016-12-07 | 罗诺克兹（北京）能源设备技术有限公司 | A kind of high-power low NO |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106016362B (en) | A kind of soft combustion chamber of gas turbine and its control method | |
| EP2940389A1 (en) | Combustor burner arrangement | |
| CN106016364A (en) | Unit two-cyclone premixed combustion nozzle for dry-type low-pollution combustion chamber of gas turbine | |
| CN101435585A (en) | Gas turbine combined type fuel evaporating and atomizing combustion apparatus | |
| CN205878158U (en) | Vane type gas air premixing device | |
| CN206001524U (en) | A kind of combustor radial direction two-stage swirl nozzle | |
| CN107806647A (en) | A kind of premix of gas-turbine combustion chamber nozzle on duty | |
| CN205825112U (en) | A kind of two points of swirl-flow premixed burner noz(zle)s of gas turbine dry low pollution combustor unit | |
| CN205878163U (en) | High -power low NOx burner | |
| CN104456625B (en) | The air intake structure of gas turbine fuel nozzles | |
| CN106196055A (en) | A kind of high-power low NO | |
| CN107990353B (en) | The jet nozzle of the soft combustion chamber of gas turbine | |
| CN203478250U (en) | Novel fire cover for burner | |
| CN204756933U (en) | Gas spray gun that combustor multitube is adjustable | |
| CN204227463U (en) | Gas-turbine combustion chamber axial admission nozzle | |
| CN204901832U (en) | Nozzle that axial is sprayed | |
| CN204084467U (en) | The swirl nozzle that the axial two-stage direction of gas-turbine combustion chamber is contrary | |
| CN212029500U (en) | Combustion device and water jacket heating furnace | |
| CN204313313U (en) | Gas-turbine combustion chamber nozzle | |
| CN106678871A (en) | Radial two-stage rotational flow spray nozzle of combustion chamber | |
| CN104132330A (en) | Method for maintaining wind speed by adjusting cross-sectional area of nozzle | |
| CN205878162U (en) | From mixing low NOx burner in advance | |
| CN204438188U (en) | Gas-turbine combustion chamber nozzle | |
| CN207688125U (en) | A kind of Pottery Tunnel Calcining Kiln high-speed fuel gas burner | |
| CN209763077U (en) | oil-gas dual-purpose low-nitrogen burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |