CN207539905U - The low-NOx combustor of ultralow discharged nitrous oxides - Google Patents
The low-NOx combustor of ultralow discharged nitrous oxides Download PDFInfo
- Publication number
- CN207539905U CN207539905U CN201721478226.8U CN201721478226U CN207539905U CN 207539905 U CN207539905 U CN 207539905U CN 201721478226 U CN201721478226 U CN 201721478226U CN 207539905 U CN207539905 U CN 207539905U
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- China
- Prior art keywords
- smoke backflow
- refractory brick
- low
- nozzle
- nitrous oxides
- Prior art date
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- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000000779 smoke Substances 0.000 claims abstract description 67
- 239000011449 brick Substances 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 230000008685 targeting Effects 0.000 claims abstract description 10
- -1 housing Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 29
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 42
- 239000002737 fuel gas Substances 0.000 description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 239000000446 fuel Substances 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000010410 layer Substances 0.000 description 6
- 238000003916 acid precipitation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model is related to a kind of low-NOx combustors of ultralow discharged nitrous oxides.It includes refractory brick, housing, air inlet, venturi nozzle, injection tracheae, smoke backflow pipe, refractory brick includes the steady flame step on top and the hollow cylinder of lower part, steady flame step top inner wall is provided with steady flame plate, the axial arranged of refractory brick has several air guns, air gun opens foraminate air gun nozzle including top, the first smoke backflow hole and the second smoke backflow hole are provided in refractory brick, the side of air gun nozzle is provided with aperture corresponding with the first smoke backflow, the inner end in the first smoke backflow hole is provided with targeting port, second smoke backflow hole is communicated with smoke backflow pipe, air gun and the second smoke backflow hole arranged for interval, several venturi nozzles are axially provided in refractory brick, the bottom of venturi nozzle is provided with the injection gas nozzle being connect with injection tracheae, smoke backflow pipe is connected with venturi nozzle.The utility model flame height is low, compact, and coefficient of excess air is small, the thermal efficiency is high.
Description
Technical field
The utility model is related to a kind of burner more particularly to a kind of low-NOx combustors of ultralow discharged nitrous oxides, belong to
In technical field of combustion equipment.
Background technology
In China Today, nitrogen oxides the pollution of environment is had become one with benefit it is serious the problem of, it is to air
Influence mainly has acid rain, also assists in the floating dust to be formed in air.NOx is the general designation when oxide, and nitrogen oxides is as air
One of important pollutant generates air the mainly NO and NO2 of pollution.The NOx initially generated in fuel combustion process has 90%
NO above, NO easily reacts in an atmosphere with the oxygen in air, generate NO2, therefore in air NOx generally with NO2's
Form exists.Under ultraviolet light, NO2 can be acted on the hydrocarbon in air, generate photochemical fog and ozone；It is raw
Into acid rain and photochemical fog crops and forest large area can be caused withered, acid rain can also corrode building and equipment, photochemical
Learning smog has apparent carcinogenesis, in surface layer ozone can Central nervous cause greatly to injure.
NOx is the general designation of all nitrogen oxides, and it is NO that the NOx initially generated in combustion process, which has more than 90%, but NO exists
It easily reacts in air with the oxygen in air, generates NO2, therefore NOx generally exists in the form of NO2 in air.
2NO+O2→2NO2
There are three types of the formation mechanisms of NO：
1. Quick-type（P-NO）-- during rich hydrocarbon fuel combustion, the N2 and O2 in flame front under high temperature in air are quickly anti-
It should generate；
2. temperature mode（T-NO）-- it is that N2 and O2 in flame front air downstream reacts generation at high temperature：
3. fuel type（F-NO）-- it is converted to NOx during nitride burner in fuel.
N2+O2→2NO
General petroleum chemical enterprise is using being practically free of nitride in fuel gas, and the production quantity of P-NO is usually one smaller than T-NO
Magnitude, therefore P-NO, F-NO can not have to consider, in conclusion the NO overwhelming majority that gas fuel combustion is generated is T-NO.
The gas pollutant of petrochemical plant tubular heater discharge mainly includes sulfide（SO2）And nitrogen oxides
（NOx）.Sulphide staining in flue gas can be solved by Desulphurization of fuels, and the side that the emission problem for solving NOx is most economical
Method is solved by replacing low-NOx combustor, and flame temperature is to influence the most important factor of NOx generations, therefore control
The core concept of NOx is exactly to control flame temperature.Staged air distribution, classification fuel, the interior cycle of flue gas（IFGR）, flue gas outer loop
（EFGR）Low NOx combusting technologies is waited to develop without this thought is not enclosed.
Existing low-NOx combustor, flame height is not big, compact, and flame easily licks boiler tube, coefficient of excess air
Greatly, the thermal efficiency is low.
Invention content
The purpose of this utility model is to overcome above-mentioned deficiency provides a kind of low NOx combustions of ultralow discharged nitrous oxides
Burner.
What the purpose of this utility model was realized in：
A kind of low-NOx combustor of ultralow discharged nitrous oxides, its main feature is that：The ultralow discharged nitrous oxides it is low
NOx combustion device includes refractory brick, housing, gas collecting tube, air inlet, venturi nozzle, injection tracheae, smoke backflow pipe, refractory brick
Top for it is hollow and with step surface steady flame step, lower part is hollow cylinder, and steady flame step top inner wall is provided with several
Semicircular steady flame plate, the axial arranged of refractory brick have several air guns, and air gun annular is evenly distributed with, the bottom of multiple air guns and gas collecting tube
It is connected, air gun includes the air gun nozzle of upper end, and several apertures are provided at the top of air gun nozzle, and the first flue gas is provided in refractory brick and is returned
The sagittal plane of discharge orifice, the first smoke backflow hole and refractory brick is in a certain angle, is opened in the side of air gun nozzle there are one aperture,
This aperture corresponds to the outer end of the first smoke backflow, and the inner end in the first smoke backflow hole is provided with upward targeting port, in refractory brick
It is provided with the second smoke backflow hole, the sagittal plane of the second smoke backflow hole and refractory brick is in a certain angle, the second smoke backflow hole
It is communicated with smoke backflow pipe, air gun and the second smoke backflow hole arranged for interval, several venturi sprays is axially provided in refractory brick
Pipe, the bottom of venturi nozzle are provided with injection gas nozzle, and the lower end of injection gas nozzle is connect with injection tracheae, smoke backflow pipe
Lower end be connected with the lower part of venturi nozzle.
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, steady flame step angle are 75 ° -90 °,
The step number of plies is 1-5 layers, and the height of every layer of step is 50-300mm, and the width of every layer of step is 5--50mm.
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, the first smoke backflow hole and refractory brick
The angle of sagittal plane is 0 ° -30 °, the quantity in the first smoke backflow hole 3-12, the diameter 20- in the first smoke backflow hole
100mm。
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, the second smoke backflow hole and refractory brick
Sagittal plane angle is 60 ° -90 °, and the quantity in the second smoke backflow hole is 3-12, a diameter of 40- in the second smoke backflow hole
100mm。
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, between air gun and the second smoke backflow mouth
Every arrangement.
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, the outlet shape of targeting port are
Rectangle or circle, inside 45 ° of opening angle -45 ° outside.
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, the diameter 10-30mm of steady flame plate, surely
Flame plate quantity is 6-60.
A kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, venturi nozzle are circular layout, literary mound
In the quantity of jet pipe be 3-12.
The radial section of a kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model, housing and refractory brick
For round, rectangle or square.
Compared with prior art, the beneficial effects of the utility model are：
1. a kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model originally employs fuel gas classification, will fire
Material gas blowout is incident upon the multiple regions for being from upstream to downstream, so as to form multiple combustion zones, disperses high-temperature area, significantly optimization combustion
The mixing of material and air, achieving the purpose that, which reduced air, remains coefficient, improves the thermal efficiency.
2. a kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model using flue gas recirculating technique, utilizes
Oxygen deprivation flue gas around refractory brick is sucked combustion zone, participates in burning by the negative pressure that the injection of fuel gas jets generates, oxygen deprivation flue gas
Addition can be with the oxygen content in dilute combustion region, while can effectively reduce flame peak temperature with cooling flame.
3. a kind of low-NOx combustor of ultralow discharged nitrous oxides of the utility model premixes technology using oxygen deprivation, utilizes text
The kinetic energy of lance fuel gas jet brings the oxygen deprivation flue gas in burner hearth into Venturi tube in mound and fuel gas premixes after-combustion, shows
The height for reducing flame write, the 2/3 of only conventional low-NOx combustor.Under the action of steady flame step 1.2, flame diameter
It is obviously reduced, the 4/5 of only conventional low-NOx combustor.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the low-NOx combustor of ultralow discharged nitrous oxides of the utility model.
In figure：
Refractory brick 1,
Steady flame plate 1.1,
Steady flame step 1.2,
Air gun 2,
Air gun nozzle 2.1,
Housing 3,
Gas collecting tube 4,
Air inlet 5,
Venturi nozzle 6,
Injection gas nozzle 7,
Injection tracheae 8,
Smoke backflow pipe 9,
First smoke backflow hole 10,
Second smoke backflow hole 11,
Targeting port 12.
Specific embodiment
Referring to Fig. 1, the utility model is related to a kind of low-NOx combustors of ultralow discharged nitrous oxides, it includes refractory brick
1st, steady flame plate 1.1, steady flame step 1.2, air gun 2, air gun nozzle 2.1, housing 3, gas collecting tube 4, air inlet 5, venturi nozzle 6,
Injection gas nozzle 7, injection tracheae 8, smoke backflow pipe 9, the first smoke backflow hole 10, the second smoke backflow hole 11 and targeting port
12。
Blowing system includes refractory brick 1, housing 3 and air inlet 5, and fuel gas system includes gas collecting tube 4 and air gun 2, flue gas
Recirculating system includes injection tracheae 8, injection gas nozzle 7, smoke backflow pipe 9, venturi nozzle 6.
The top of the refractory brick 1 is steady flame step 1.2 hollow and with step surface, and lower part is hollow cylinder, surely
1.2 top inner wall of flame step is provided with several semicircular steady flame plates 1.1, and the axial arranged of refractory brick 1 has several air guns 2, air gun 2
Annular is uniformly distributed, and air gun 2 includes the air gun nozzle 2.1 of upper end, and the top of air gun nozzle 2.1 is provided with several apertures, is opened in refractory brick 1
There is the first smoke backflow hole 10, the first smoke backflow hole 10 and the sagittal plane of refractory brick 1 are in a certain angle, in air gun nozzle
2.1 side is opened there are one aperture, this aperture corresponds to the outer end in the first smoke backflow hole 10, the inner end in the first smoke backflow hole 10
Upward targeting port 12 is provided with, the second smoke backflow hole 11, the second smoke backflow hole 11 and refractory brick 1 are provided in refractory brick 1
Sagittal plane it is in a certain angle, the second smoke backflow hole is communicated with smoke backflow pipe 9,2 and second smoke backflow of air gun
11 arranged for interval of hole.
The bottom of multiple air guns 2 is connected with gas collecting tube 4, and gas collecting tube 4 is connect by flange with external fuel gas pipeline.
Several venturi nozzles 6 are axially provided in refractory brick 1, the bottom of venturi nozzle 6 is provided with injection gas nozzle
7, the lower end of injection gas nozzle 7 is connect with injection tracheae 8, the lower end of the smoke backflow pipe 9 and the lower part phase of venturi nozzle 6
Even, injection tracheae 8 and venturi nozzle 6 are coaxially arranged.
Wherein, steady 1.2 inclination angle of flame step is 75 ° -90 °, and the step number of plies is 1-5 layers, and the height of every layer of step is 50-
300mm, the width of every layer of step is 5--50mm.
Wherein, the angle in the first smoke backflow hole 10 and refractory brick sagittal plane is 0 ° -30 °, the first smoke backflow hole 10
Quantity 3-12, the diameter 20-100mm in the first smoke backflow hole 10.
Wherein, the second smoke backflow hole 11 and 1 sagittal plane angle of refractory brick are 60 ° -90 °, the second smoke backflow hole 11
Quantity be 3-12, a diameter of 40-100mm in the second smoke backflow hole 11.
Wherein, 2 and second smoke backflow mouth of air gun, 11 arranged for interval.
Wherein, the outlet shape of targeting port 12 be rectangle or circle, inside 45 ° of opening angle -45 ° outside.
Wherein, the diameter 10-30mm of steady flame plate 1.1, steady 1.1 quantity of flame plate are 6-60.
Wherein, venturi nozzle 6 is circular layout, and the quantity of venturi nozzle 6 is 3-12.
Wherein, the radial section of housing 3 and refractory brick 1 is round, rectangle or square.
Operation principle：
Air enters 3 uplink of housing of burner by air inlet 5, by aditus laryngis plate（It is not drawn into Fig. 1）Speed increases afterwards
The speed of about 20-30m/s is added to, all the way fuel gas（65-90%）It is distributed through gas collecting tube 4 to each air gun 2, another way fuel gas
（10-35%）Venturi nozzle 6 is sprayed by injection tracheae 8.
The fuel gas that air gun 2 comes out is divided into two parts：The fuel gas of first part（5-10%）Through 2.1 side of air gun nozzle
Aperture spray into the first smoke backflow hole 10, during injection, negative pressure is generated at 10 outer end of the first smoke backflow hole, by oxygen deprivation flue gas
Bring the first smoke backflow hole 10 into, this part of fuel gas and oxygen deprivation flue gas are after targeting port 12 along on refractory brick internal face
Row, with the air burning of air inlet 5 at steady flame plate 1.1, this is primary flame, plays the role of stable flame root；The
Two part of fuel gas（55%-80%）It is sprayed through the aperture at the top of air gun nozzle 2.1 and along the outside wall surface direction of steady flame step 1.2
Go out, during injection, negative pressure is generated at air gun nozzle 2.1, this part of fuel gas is outer through steady flame step 1.2 with oxygen deprivation flue gas
Wall surface, at 1 top of refractory brick and the air burning of air inlet 5, this is secondary flame.
Under the action of steady flame step 1.2, stable low-pressure vortex area can be formed at the step surface of steady flame step 1.2, fire
The burning that flame can be stablized in this region, forms stable flame rings.Due to the presence in low-pressure vortex area, fuel gas is along steady flame
During 1.2 uplink of step, often by a step surface, flame can all be shunk, and flame becomes tight after several step surfaces
It gathers.
The fuel gas that injection tracheae 8 comes out is sprayed by injection gas nozzle 7 into venturi nozzle 6, during injection, in injection
Negative pressure is formed at gas nozzle 7, this part of fuel gas enters venturi with the oxygen deprivation flue gas through the second smoke backflow pipe 11 and sprays
Pipe 6 finally with the air burning of air inlet 5, forms premixed flame.
The backflow flue gas amount of conventional low-NOx combustor typically constitutes from the 15-20% of total exhaust gas volumn, in the work of venturi nozzle 6
Under, backflow flue gas amount can be caused to increase 20-50% than conventional low-NOx combustor, reach the 18-30% of total exhaust gas volumn, therefore
Flame peak temperature is significantly reduced, and NOx emission concentration can be down to 20mg/Nm3.
Premix fuel energy is burnt faster, and more fuel energies that premix reduce flame height, the primary fire of the utility model
The fuel gas of flame and the fuel gas of premixed flame burn in refractory brick 1, the two summation at most reachable 45%, and secondary flame
Fuel gas burns in 1 outside of refractory brick, and promoting part of fuel gas can be most down to 55%, and such combustion system significantly reduces flame
Height, the 2/3 of only conventional low-NOx combustor.Under the action of steady flame step 1.2, flame diameter is obviously reduced, only often
Advise the 4/5 of low-NOx combustor.
The utility model all arranges fuel at each position that air flow channel exports, therefore can significantly optimize fuel and sky
The mixing of gas, achieving the purpose that, which reduced air, remains coefficient, improves the thermal efficiency.
Claims (9)
1. a kind of low-NOx combustor of ultralow discharged nitrous oxides, it is characterised in that：The ultralow discharged nitrous oxides it is low
NOx combustion device includes refractory brick, housing, gas collecting tube, air inlet, venturi nozzle, injection tracheae, smoke backflow pipe, refractory brick
Top for it is hollow and with step surface steady flame step, lower part is hollow cylinder, and steady flame step top inner wall is provided with several
Semicircular steady flame plate, the axial arranged of refractory brick have several air guns, and air gun annular is evenly distributed with, the bottom of multiple air guns and gas collecting tube
It is connected, air gun includes the air gun nozzle of upper end, and several apertures are provided at the top of air gun nozzle, and the first flue gas is provided in refractory brick and is returned
The sagittal plane of discharge orifice, the first smoke backflow hole and refractory brick is in a certain angle, is opened in the side of air gun nozzle there are one aperture,
This aperture corresponds to the outer end of the first smoke backflow, and the inner end in the first smoke backflow hole is provided with upward targeting port, in refractory brick
It is provided with the second smoke backflow hole, the sagittal plane of the second smoke backflow hole and refractory brick is in a certain angle, the second smoke backflow hole
It is communicated with smoke backflow pipe, air gun and the second smoke backflow hole arranged for interval, several venturi sprays is axially provided in refractory brick
Pipe, the bottom of venturi nozzle are provided with injection gas nozzle, and the lower end of injection gas nozzle is connect with injection tracheae, smoke backflow pipe
Lower end be connected with the lower part of venturi nozzle.
2. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Steady flame platform
Rank inclination angle is 75 ° -90 °, and the step number of plies is 1-5 layers, and the height of every layer of step is 50-300mm, and the width of every layer of step is 5--
50mm。
3. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：First cigarette
Gas return port and the angle of refractory brick sagittal plane are 0 ° -30 °, and the quantity in the first smoke backflow hole 3-12, the first flue gas returns
The diameter 20-100mm of discharge orifice.
4. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Second cigarette
Gas return port and refractory brick sagittal plane angle are 60 ° -90 °, and the quantity in the second smoke backflow hole is 3-12, and the second flue gas returns
A diameter of 40-100mm of discharge orifice.
5. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Air gun with
Second smoke backflow mouth arranged for interval.
6. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Targeting port
Outlet shape for rectangle or circle, inside 45 ° of opening angle -45 ° outside.
7. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Steady flame plate
Diameter 10-30mm, steady flame plate quantity is 6-60.
8. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Venturi
Jet pipe is circular layout, and the quantity of venturi nozzle is 3-12.
9. a kind of low-NOx combustor of ultralow discharged nitrous oxides according to claim 1, it is characterised in that：Housing and
The radial section of refractory brick is round, rectangle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478226.8U CN207539905U (en) | 2017-11-08 | 2017-11-08 | The low-NOx combustor of ultralow discharged nitrous oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478226.8U CN207539905U (en) | 2017-11-08 | 2017-11-08 | The low-NOx combustor of ultralow discharged nitrous oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539905U true CN207539905U (en) | 2018-06-26 |
Family
ID=62612751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721478226.8U Expired - Fee Related CN207539905U (en) | 2017-11-08 | 2017-11-08 | The low-NOx combustor of ultralow discharged nitrous oxides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019751A (en) * | 2017-11-08 | 2018-05-11 | 扬州高立达科技产业有限公司 | The low NO of ultralow discharged nitrous oxidesxBurner |
| CN109631036A (en) * | 2019-01-14 | 2019-04-16 | 唐山亿昌热能科技有限公司 | The combustion method and matched combustion head and burner of a kind of ultralow nitrogen oxides |
-
2017
- 2017-11-08 CN CN201721478226.8U patent/CN207539905U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019751A (en) * | 2017-11-08 | 2018-05-11 | 扬州高立达科技产业有限公司 | The low NO of ultralow discharged nitrous oxidesxBurner |
| CN108019751B (en) * | 2017-11-08 | 2024-05-31 | 江苏焱鑫科技股份有限公司 | Low NO with ultra low nitrogen oxide emissionsxBurner with a burner body |
| CN109631036A (en) * | 2019-01-14 | 2019-04-16 | 唐山亿昌热能科技有限公司 | The combustion method and matched combustion head and burner of a kind of ultralow nitrogen oxides |
| CN109631036B (en) * | 2019-01-14 | 2023-08-25 | 唐山亿昌热能科技有限公司 | Combustion method of ultralow nitrogen oxides, matched combustion head and combustion device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |