CN107218602A - A kind of low heat value/low-pressure gas burner - Google Patents
A kind of low heat value/low-pressure gas burner Download PDFInfo
- Publication number
- CN107218602A CN107218602A CN201710590248.1A CN201710590248A CN107218602A CN 107218602 A CN107218602 A CN 107218602A CN 201710590248 A CN201710590248 A CN 201710590248A CN 107218602 A CN107218602 A CN 107218602A
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- Prior art keywords
- gas
- air
- low
- tube
- blast
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- 239000007789 gas Substances 0.000 claims abstract description 75
- 239000000567 combustion gas Substances 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000002737 fuel gas Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 19
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000009841 combustion method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 27
- 238000002156 mixing Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000002440 industrial waste Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression 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
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
-
- 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
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14002—Special features of gas burners of premix or non premix types, specially adapted for the combustion of low heating value [LHV] gas
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A kind of low heat value/low-pressure gas burner of the present invention, solves boiler, the heating furnace reduction NOx emission technical problem of the industrial tail gas of lower heat of combustion/low supply gas pressure, belongs to industrial gas burner field of combustion technology.It is characterized in that；Central air hose, First air passage, blast tube, secondary air channel, tertiary air passage, sequentially coaxially set from inside to outside, First air through First air passage is Whirl deposite tank, the leading section of blast tube is equipped with multiple interior gas nozzles inwardly sprayed and multiple outer gas nozzles outwards sprayed, what it is through secondary air channel is direct current wind, it is Whirl deposite tank through tertiary air passage tertiary air, the gas quantity that interior gas nozzle sprays is that the air quantity sprayed in the 5~35% of total gas quantity, First air passage is the 1%~15% of total blast volume.The present invention is simple in construction, coupled fractional combustion and bias combustion method, and burning is complete, flame stabilization, low NOx drainage, it is adaptable to the burner of various low heat values/low-pressure combustion gas.
Description
Technical field
The present invention relates to a kind of low heat value/low-pressure gas burner, more particularly to lower heat of combustion/low supply gas pressure
Industrial tail gas, the boiler of waste gas, the burner of heating furnace, belong to industrial gas burner field of combustion technology.
Background technology
At home under the overall situation of energy-saving and emission-reduction, China increases the management to environmental problem, air pollution emission
Limit value it is also increasingly strict, and the field of limit row has been not solely restricted to north heating, Industrial Boiler and station boiler, is even more
Before the boiler that the requirement of reduction NOx emission targeted by burning industrial waste gas, industrial by-product gas etc..And these industrial waste gases are general
All exist that supply gas pressure is low, calorific value is low, fuel containing fuel type the features such as, burning, which is existed, needs ever-burning flame surely to fire, after-flame is difficult,
The problems such as NOx concentration of emission is high.The low nitrogen burning control method of industrial waste gas, different from technology very ripe high heating value
Nitrogen in gas burner, fuel is easy to be combined generation NOx, i.e. fuel type NOx production with oxygen at a lower temperature, also
It is raw, cause the NOx emission concentration of industrial waste gas high.The domestic reduction NOx emission technical research for this kind of burner is less, state
Also it is rarely reported on border.
The content of the invention
The purpose of the present invention is that there is provided a kind of low heat value/low supply gas pressure combustion gas for defect present in prior art
Low-NOx combustor, further reduces the NOx of boiler/heating furnace of industrial tail gas/waste gas of lower heat of combustion/low supply gas pressure
Discharge.
In order to reach object defined above, the technical scheme of use is：A kind of low heat value/low-pressure gas burner, including in
Heart airduct, blast tube, air duct, aditus laryngis, cyclone and gas nozzle, it is characterised in that；The central air hose, combustion gas are led to
Road inner tube, blast tube outer tube, outer tube, aditus laryngis are cylindrical, sequentially coaxially set from inside to outside；The central air hose and institute
It is First air passage to state between blast tube inner tube, and its leading section is fixedly connected with First air cyclone；In the blast tube
It is blast tube between pipe and the blast tube outer tube, the front end face of the blast tube is equipped with multiple interior gas nozzles and many
Individual outer gas nozzle, the interior gas nozzle is uniformly configured along the blast tube inner tube loop wire, and fuel gas injection direction is with
The angular direction of axis inward slant α/2 injection, the outer gas nozzle is uniformly configured along the blast tube outer tube loop wire, gas injection
Penetrate direction outwards, with the angular divergence of the outward-dipping β in axis/2；It is secondary between the blast tube outer tube and the outer tube
Wind passage；It is tertiary air passage, the tertiary air Channel front end portion and tertiary air eddy flow between the outer tube and the aditus laryngis
Device is fixedly connected.
The outer gas nozzle 12 is placed in the outside of the interior gas nozzle 13, and multigroup outer gas injection is coaxially disposed on demand
Mouth, same group of outer gas nozzle is isometrical to be set, and the outer gas nozzle radius of difference group is unequal, along the blast tube outer tube
Loop wire is uniformly configured, and fuel gas injection direction is outside.
The α is：0 ° of 150 ° of ＜ α ＜, the β angles are：30 ° of 170 ° of ＜ β ＜.
The gas quantity that the interior gas nozzle sprays is to spray in the 5~35% of total gas quantity, described First air passage
Air quantity is the 1%~15% of total blast volume.
The beneficial effects of the invention are as follows：A kind of low heat value/low-pressure gas burner of the present invention, has coupled fractional combustion
With the low nitrogen burning method of bias combustion：Heart district domain improves the intensity of dense burning, i.e. center anoxic in the burner, forms
Extremely strong reduction atmosphere, reduces NOx generation；And non-complete combustion of fuel, produces a large amount of reducing substanceses, such as CO, HCN
Deng suppression fuel type NOx generation.Using staged-combustion method, it is well mixed air and fuel, flame is stablized relatively, subtracts
The generation in area of few localized hyperthermia, and then reduce thermal NO x generation.The setting of tertiary air cyclone, enhances peripheral air
With the mixing of peripheral fuel, make uncombusted full combustion of fuel.
The present invention has simple in construction, combustion flame stabilization, is not required to what ever-burning flame, low NOx drainage, fuel can burn completely
Excellent properties.It is adapted to the burner using various low heat values/low-pressure combustion gas.
Brief description of the drawings
Fig. 1 is the low NOx of the industrial combustion gas of the present invention longitudinal cross section structure diagram of burner；
Fig. 2 is Fig. 1 A to structural representation；
Fig. 3 is burner front end face partial enlargement structural representation（Two groups of outer gas nozzles, gas nozzle in one group）.
In figure, 1-centre wind；2-First air passage；3-blast tube；4-secondary air channel；5-tertiary air passage；
6-central air hose；7-blast tube inner tube；8-blast tube outer tube；9-outer tube；10-aditus laryngis；11-tertiary air eddy flow
Device；12/12 '-outer gas nozzle；13-interior gas nozzle；14-First air cyclone.
Embodiment
Below in conjunction with brief description of the drawings, the invention will be further described with embodiment, and its purpose is to make art technology
Personnel are understood that and implemented the present invention, are not intended to limit the invention.It should be appreciated that protection scope of the present invention will with right
Book is asked to be defined, every similar structure or equivalent substitute using to the present invention all should be included in protection scope of the present invention.Below with
Combustion gas direction of advance is the relation that front, pause mark represent sum.
Fig. 1 is the longitudinal cross section structure diagram of low heat value of the present invention/low-pressure combustion gas low-NOx combustor；Fig. 2 is Fig. 1 A
To structural representation.Shown in Fig. 1 and Fig. 2, a kind of low heat value/low-pressure gas burner of the invention, including centre wind
Pipe 6, blast tube 3, air duct, aditus laryngis 10, cyclone and gas nozzle, it is characterised in that；The central air hose 6, combustion gas
Multi-pass providing inner 7, blast tube outer tube 8, outer tube 9, aditus laryngis 10 are cylindrical, sequentially coaxially set from inside to outside；The center
It is First air passage 2 between airduct 6 and the blast tube inner tube 7, First air Channel front end portion consolidates with First air cyclone 14
Surely connect；It is blast tube 3 between the blast tube inner tube 7 and blast tube outer tube 8, the leading section of blast tube 3 is equipped with
Multiple inside interior gas nozzles 13 and multiple outside outer gas nozzles 12, are uniformly configured along loop line；The blast tube
It is secondary air channel 4 between outer tube 8 and the outer tube 9.It is logical for tertiary air between the outside of outer tube 9 and the aditus laryngis 10
Road 5, its leading section is fixedly connected with tertiary air cyclone 11, and the tertiary air through tertiary air passage 5 is Whirl deposite tank.
Combustion gas to central axis tilt alpha/2 jiao to spray in the interior gas nozzle 13,0 ° of 150 ° of ＜ α ＜, the combustion of ejection
Tolerance is the 5~35% of total gas quantity.
As shown in Figure 1, the combustion air in the First air passage 2, passes through First air eddy flow in blast tube inner tube 7
After disk 14, flowed out, with the combustion gas that is sprayed by the interior gas nozzle 13 before different directions, carried out pair in the form of rotary wind
Punching, mixing and burning.Because gas quantity is relatively more at this, First air only accounts for the 1~15% of total air, and combustion gas carries out incomplete
Burning, i.e. anoxycausis, so foring stronger reduction atmosphere, suppress fuel type NOx generation, and non-complete combustion of fuel
Reducing substances CO, HCN of formation etc., it is reducible to have generated NOx, reduce NOx generation；Further, since First air herein
Flow velocity it is relatively low, so negative relative can be formed, attract the smoke backflow of periphery to arrive burning under this reproducibility atmosphere, so as to reduce
NOx emission.
The outer gas nozzle 12 is placed in the outside of the interior gas nozzle 13, and multigroup outer gas injection can be coaxially disposed on demand
Mouth, same group of outer gas nozzle is isometrical to be set, and the outer gas nozzle radius of difference group is unequal, and two groups are set as shown in Figure 3
Outer gas nozzle 12 and 12 '.The combustion gas direction that the outer gas nozzle 12 sprays is in β/2 jiao with central axis, and combustion gas is with difference
Direction outwards dissipates injection, 30 ° of 170 ° of ＜ β ＜.Secondary Air through secondary air channel 4 is direct current wind, accounts for the 5~35% of total blast volume,
Outer gas nozzle 12 sprays combustion gas outwardly, and a small amount of Secondary Air 4 with direct current is tentatively mixed, and mixing intensity is smaller, reaches
Root anaerobic condition, produces reduced form atmosphere, it is suppressed that NOx generation.
Combustion air in tertiary air passage 5 after tertiary air cyclone 11, in the form of Whirl deposite tank flow out, with it is described to
The combustion gas that outer gas nozzle 13 sprays is liquidated before different directions, mixing and burning.The setting of three Whirl deposite tanks, is enhanced
The mixing of peripheral air and peripheral fuel, makes uncombusted full combustion of fuel.
Because tertiary air 5 is relatively plentiful, the 50~94% of total blast volume are accounted for, cooling effect is also played while combustion-supporting, are formed
Light burning, reduces flame temperature.The setting of three Whirl deposite tanks, enhances the mixing of peripheral air and fuel, so as to ensure
Full combustion of fuel, solves the problem of low calorie fuels is fire retardant most.In addition, according to the size of size of burner hearth, can adjust secondary
Ratio between wind 4 and tertiary air 5, that is, change the intensity of direct current wind and Whirl deposite tank, so as to adjust the length of burner flame
And diameter.
The present invention is directed to thermal NO x, using staged-combustion method, fuel and air is all divided into before three-level, passed through
Different passages, is delivered in burner specific position.Gas nozzles 13 are at different angles in center fuel is internally more
Spray inwardly, remaining fuel is sprayed outwardly in different directions by multiple outer gas nozzles 12.First air 2 central area with
Cyclonic form is conveyed, and Secondary Air 4 is with direct current wind transmission ＆ distribution outside fuel gun, and tertiary air 5 is outside direct current wind with Whirl deposite tank form transmission ＆ distribution.
Flame can so stablized relatively, makes air and fuel well mixed, the generation in area of localized hyperthermia is reduced, and then reduce heating power type
NOx generation；For fuel type NOx, fuel type NOx is reduced in the method for bias combustion, i.e., in dense combustion zone（Oxygen-depleted zone）,
The flame kernel region that mainly center fuel and First air 2 are mixed configures more fuel and anoxic, and severe depletion of oxygen, this
Sample just can produce substantial amounts of reducing atmosphere and material, such as CO, HCN etc., and these reducing substanceses can suppress fuel type NOx's
The NOx generated is produced and reduced, and then reduces NOx generation.Outer gas nozzle 12 sprays combustion gas outwardly, with lacking for direct current
The Secondary Air 4 of amount is tentatively mixed, and mixing intensity is smaller, to reach root anaerobic condition, produces reduced form atmosphere, further
Inhibit NOx generation.
Claims (3)
1. a kind of low heat value/low-pressure gas burner, including central air hose, blast tube, air duct, aditus laryngis, cyclone
And gas nozzle, it is characterised in that；The central air hose, blast tube inner tube, blast tube outer tube, outer tube, aditus laryngis are in circle
Tubular, is sequentially coaxially set from inside to outside；It is First air passage between the central air hose and the blast tube inner tube, before it
End is fixedly connected with First air cyclone；It is blast tube between the blast tube inner tube and the blast tube outer tube,
The front end face of the blast tube is equipped with multiple interior gas nozzles and outer gas nozzle, and the interior gas nozzle is logical along the combustion gas
Road inner tube loop wire is uniformly configured, and fuel gas injection direction with the angular direction of axis inward slant α/2 to spray, the outer gas nozzle
Uniformly configured along the blast tube outer tube loop wire, fuel gas injection direction outwards, with the angular divergence of the outward-dipping β in axis/2；
It is secondary air channel between the blast tube outer tube and the outer tube；It is tertiary air between the outer tube and the aditus laryngis
Passage, the tertiary air Channel front end portion is fixedly connected with tertiary air cyclone.
2. a kind of low heat value/low-pressure gas burner according to claim 1, it is characterised in that：The α is：0 ° of ＜ α ＜
150 °, the β angles are：30 ° of 170 ° of ＜ β ＜.
3. a kind of low heat value/low-pressure gas burner according to claim 1, it is characterised in that：The interior gas nozzle
The gas quantity of ejection is the 5~35% of total gas quantity, and the air quantity sprayed in described First air passage is the 1%~15% of total blast volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590248.1A CN107218602A (en) | 2017-07-19 | 2017-07-19 | A kind of low heat value/low-pressure gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710590248.1A CN107218602A (en) | 2017-07-19 | 2017-07-19 | A kind of low heat value/low-pressure gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218602A true CN107218602A (en) | 2017-09-29 |
Family
ID=59953200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710590248.1A Pending CN107218602A (en) | 2017-07-19 | 2017-07-19 | A kind of low heat value/low-pressure gas burner |
Country Status (1)
| Country | Link |
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| CN (1) | CN107218602A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224420A (en) * | 2018-03-05 | 2018-06-29 | 上海华之邦科技股份有限公司 | A kind of gas fired-boiler Secondary Air coupled mode low NOx combustion system |
| CN108397772A (en) * | 2018-05-07 | 2018-08-14 | 上海全颉环境设备有限公司 | A kind of combustion head |
| CN109882841A (en) * | 2019-03-04 | 2019-06-14 | 中国科学院过程工程研究所 | A kind of decoupling gas burner |
| CN110848667A (en) * | 2019-09-25 | 2020-02-28 | 西安交通大学 | Low-calorific-value nitrogen-containing gas combustion system and method |
| CN112128753A (en) * | 2020-09-27 | 2020-12-25 | 四川泷涛环境工程有限公司 | Low heat value gas burner |
| CN112762448A (en) * | 2021-02-01 | 2021-05-07 | 西安交通大学 | Low NO of coupling grading cyclone dispersion combustion technologyxGas burner |
| CN112963831A (en) * | 2021-03-31 | 2021-06-15 | 宜兴曜源科技发展有限公司 | Compound nozzle of submergence formula top-blown furnace |
| TWI742313B (en) * | 2017-12-19 | 2021-10-11 | 日商中外爐工業股份有限公司 | burner |
| CN115013973A (en) * | 2022-06-02 | 2022-09-06 | 西安交通大学 | Full premix water-cooling gas boiler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832550A (en) * | 2010-06-18 | 2010-09-15 | 上海交通大学 | Swirl pulverized-coal burner based on multi-level pulverized-coal concentration |
| CN102003710A (en) * | 2010-12-10 | 2011-04-06 | 上海诺特飞博燃烧设备有限公司 | Low emission high-power staged-combustion gas burner and gas collocation method thereof |
| WO2012163107A1 (en) * | 2011-05-27 | 2012-12-06 | 上海锅炉厂有限公司 | Dense-phase swirl pulverized coal burner |
| CN104180368A (en) * | 2014-08-26 | 2014-12-03 | 山西蓝天环保设备有限公司 | Medium-and-low temperature hot fume powder feeding type coal powder combustion device and combustion process thereof |
| CN105465786A (en) * | 2015-12-08 | 2016-04-06 | 上海华之邦科技股份有限公司 | Low-NOx combustor suitable for various low-heat-value/low-pressure fuel gases |
| CN205592955U (en) * | 2016-05-06 | 2016-09-21 | 北京佳德昌科技有限责任公司 | Tertiary air distribution's gas recirculation low NOx burner |
| CN206112921U (en) * | 2016-05-06 | 2017-04-19 | 北京佳德昌科技有限责任公司 | Multistage air distribution's low NOx burner |
| CN207019063U (en) * | 2017-07-19 | 2018-02-16 | 上海华之邦科技股份有限公司 | A kind of low heat value/low-pressure gas burner |
-
2017
- 2017-07-19 CN CN201710590248.1A patent/CN107218602A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832550A (en) * | 2010-06-18 | 2010-09-15 | 上海交通大学 | Swirl pulverized-coal burner based on multi-level pulverized-coal concentration |
| CN102003710A (en) * | 2010-12-10 | 2011-04-06 | 上海诺特飞博燃烧设备有限公司 | Low emission high-power staged-combustion gas burner and gas collocation method thereof |
| WO2012163107A1 (en) * | 2011-05-27 | 2012-12-06 | 上海锅炉厂有限公司 | Dense-phase swirl pulverized coal burner |
| CN104180368A (en) * | 2014-08-26 | 2014-12-03 | 山西蓝天环保设备有限公司 | Medium-and-low temperature hot fume powder feeding type coal powder combustion device and combustion process thereof |
| CN105465786A (en) * | 2015-12-08 | 2016-04-06 | 上海华之邦科技股份有限公司 | Low-NOx combustor suitable for various low-heat-value/low-pressure fuel gases |
| CN205592955U (en) * | 2016-05-06 | 2016-09-21 | 北京佳德昌科技有限责任公司 | Tertiary air distribution's gas recirculation low NOx burner |
| CN206112921U (en) * | 2016-05-06 | 2017-04-19 | 北京佳德昌科技有限责任公司 | Multistage air distribution's low NOx burner |
| CN207019063U (en) * | 2017-07-19 | 2018-02-16 | 上海华之邦科技股份有限公司 | A kind of low heat value/low-pressure gas burner |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI742313B (en) * | 2017-12-19 | 2021-10-11 | 日商中外爐工業股份有限公司 | burner |
| CN108224420A (en) * | 2018-03-05 | 2018-06-29 | 上海华之邦科技股份有限公司 | A kind of gas fired-boiler Secondary Air coupled mode low NOx combustion system |
| CN108224420B (en) * | 2018-03-05 | 2024-04-26 | 上海博士高环保科技有限公司 | Secondary air coupling type low NOx combustion system of gas boiler |
| CN108397772A (en) * | 2018-05-07 | 2018-08-14 | 上海全颉环境设备有限公司 | A kind of combustion head |
| CN108397772B (en) * | 2018-05-07 | 2024-05-14 | 上海全颉环境设备有限公司 | Combustion head |
| CN109882841A (en) * | 2019-03-04 | 2019-06-14 | 中国科学院过程工程研究所 | A kind of decoupling gas burner |
| CN110848667B (en) * | 2019-09-25 | 2021-05-28 | 西安交通大学 | Low-calorific-value nitrogen-containing gas combustion system and method |
| CN110848667A (en) * | 2019-09-25 | 2020-02-28 | 西安交通大学 | Low-calorific-value nitrogen-containing gas combustion system and method |
| CN112128753B (en) * | 2020-09-27 | 2023-08-29 | 四川泷涛环境工程有限公司 | Low heat value gas burner |
| CN112128753A (en) * | 2020-09-27 | 2020-12-25 | 四川泷涛环境工程有限公司 | Low heat value gas burner |
| CN112762448A (en) * | 2021-02-01 | 2021-05-07 | 西安交通大学 | Low NO of coupling grading cyclone dispersion combustion technologyxGas burner |
| CN112963831A (en) * | 2021-03-31 | 2021-06-15 | 宜兴曜源科技发展有限公司 | Compound nozzle of submergence formula top-blown furnace |
| CN115013973A (en) * | 2022-06-02 | 2022-09-06 | 西安交通大学 | Full premix water-cooling gas boiler |
| CN115013973B (en) * | 2022-06-02 | 2023-10-24 | 西安交通大学 | Full premix water-cooling gas boiler |
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