CN104132344A - Flameless fuel gas combustion device and method with extremely low nitrogen oxide emission - Google Patents
Flameless fuel gas combustion device and method with extremely low nitrogen oxide emission Download PDFInfo
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Abstract
The invention relates to a flameless fuel gas combustion device and method with the extremely low nitrogen oxide emission. The flameless fuel gas combustion device with extremely low nitrogen oxide emission comprises an L-shaped air spray pipe, a central fuel gas spray pipe, an outer fuel gas spray pipe and a flame holder, wherein one section of the air spray pipe is arranged horizontally, a spray pipe outlet is formed a the tail end of the horizontal section of the air spray pipe, a horizontal branch pipe is arranged at the bent position of the L-shaped pipe, the central fuel gas spray pipe is a straight pipe and stretches into the horizontal section of the air spray pipe after penetrating through the horizontal branch pipe, and an annular gap is reserved between the air spray pipe and the central fuel gas spray pipe, so that an air channel is formed; the central fuel gas spray pipe and the horizontal branch pipe are connected through a sealing connector; the outer fuel gas spray pipe is arranged in a sleeved mode and is connected to the outer side of the horizontal section of the air spray pipe in a sealed mode, a spray pipe inlet is formed in one side of the outer fuel gas spray pipe, and an annular gap is reserved between the outer fuel gas spray pipe and the air spray pipe, so that an outer fuel gas channel is formed; the outer fuel gas spray pipe, the horizontal section of the air spray pipe and the central fuel gas spray pipe are coaxial, the end face of an outlet of the outer fuel gas spray pipe is flush with the end face of the outlet of the air spray pipe, and the flame holder is installed at the outlet end of the central fuel gas spray pipe.
Description
Technical field
The present invention relates to a kind of combustion gas burning device and combustion method, particularly about a kind of combustion gas flameless combustion apparatus and combustion method of utmost point low-nitrogen oxide discharging.
Background technology
Global Issue of Air Pollution is on the rise at present, and acid rain, PM2.5 etc. becomes some metropolitan main Environmental Problems.Nitrogen oxide is one of main arch-criminal of PM2.5 formation, has a strong impact on people's life and health.In China, nitrogen oxide reduces discharging has become important environmental improvement work.Along with the implementation that changes the series of measures such as gas with Industrial Boiler coal of tightening up of discharged nitrous oxides standard, the novel low nitrogen burning technology that research and development are applicable to combustion gas more shows important.The widely used traditional low nitrogen burning technology of current industrial circle mainly comprises fractional combustion and flue gas recirculation, but conventionally also only can reduce by 15%～40% nitrogen oxide.Comparatively speaking, flameless combustion (Flameless Combustion) technology can reduce by 70% discharged nitrous oxides, and ignition temperature is more evenly distributed, combustion stability is good, radiation efficiency is high, is considered as 21 century possesses one of technology of development potentiality most by international burning circle.This technology is applied at metallurgy industry, and corresponding burner design, also progressively improving, has progressively been broken away from necessary use high-temperature thermal storage body preheated air, or needed some restrictive conditions such as catalyst.At present, how further optimizing this technology and improving burner design becomes this technology of popularization to a great problem of other field, significant for the discharged nitrous oxides in further reduction combustion process.
Application number is that 201410019516.0 Chinese patent application has proposed " a kind of direct spray type gas flameless burner ", and the form that it has adopted direct injection is sent combustion gas and air respectively to and in high temperature furnace, realized flameless combustion.Owing to being the mode of non-premix and not adding the parts such as stable flame pan or bluff body, therefore not enough in the traditional combustion flame holding of body of heater heating period, will directly cause the heat time long, efficiency is low.Application number is that 201410020218.3 Chinese patent application have proposed " a kind of diagonal flow type normal temperature flameless burner ", and it adopts the jet pipe of diagonal flow type that fuel is sent in stove, realizes flameless combustion with the high speed oxygen agent of center of orifices in stove.Its body of heater heating process has adopted premix/partly-premixed form, and for the very fast combustion gas of the flame propagation velocities such as hydrogen or pipe gas, this design exists the possibility of tempering, can damage burner and swirl vane.
Generally speaking, there is the problem of three aspects: in the existing burner of designing and developing based on flameless combustion technology: 1, the design of existing flameless burner is mostly non-premixed, laboratory test and existing commercial Application show, its discharged nitrous oxides is generally at 30～50ppm, at " optimum " of not accomplishing flameless combustion technology aspect nitrogen oxide reduction of discharging, also there is room for improvement in distance " zero discharged nitrous oxides ".2, the design of existing flameless burner does not have to consider to meet different combustion gas for the demand of premix/non-premixed combustion mode.In general, for the slower gas of the flame propagation velocities such as natural gas, can adopt premixed, and for the flame propagation velocities such as hydrogen, piped gas gas faster, need to adopt non-premixed to avoid tempering.3, the design of existing flameless burner is inadequate in the consideration meeting aspect burner hearth preheating, or poor combustion stability, or preheating time is long etc.
Summary of the invention
For the problems referred to above, the object of this invention is to provide and a kind ofly for different combustion gas, can realize flameless combustion, and make discharged nitrous oxides under the non-premix flameless combustion of premix state all reach combustion gas flameless combustion apparatus and the combustion method of extremely low-level utmost point low NOx.
For achieving the above object, the present invention is by the following technical solutions: a kind of combustion gas flameless combustion apparatus of utmost point low-nitrogen oxide discharging, it is characterized in that, it comprises: an air lance, described air lance is a L shaped pipe, described L shaped bend pipe wherein one section horizontally disposed, the end of the horizontal segment of described air lance is nozzle exit, in the bending place of described L shaped pipe, is provided with a horizontal branch pipe; One center exhaust gas nozzle, described center exhaust gas nozzle is a straight tube, it leaves annular space to form air duct through the parallel horizontal segment that stretches into described air lance after described horizontal branch pipe between described air lance and described center exhaust gas nozzle; Described center exhaust gas nozzle is connected by a seal nipple with described horizontal branch pipe; One outer exhaust gas nozzle, the outside of the horizontal segment of described air lance is put and be sealedly connected on to described outer gas injection pipe box, a side at described outer exhaust gas nozzle is provided with a jet pipe import, leaves annular space to form outer blast tube between described outer exhaust gas nozzle and described air lance; Horizontal segment and the center exhaust gas nozzle three of described outer exhaust gas nozzle, air lance have coaxial relation, and the end face of the outlet of described outer exhaust gas nozzle and the outlet of described air lance is concordant; Described flame holder is arranged on the port of export of described center exhaust gas nozzle.
Described flame holder adopts stable flame pan, spiral-flow type flame holder or the bluff body flame holder with round nozzle.
The internal diameter of described air lance is 1.1～1.7 times of internal diameter of described center exhaust gas nozzle; The internal diameter of described outer exhaust gas nozzle be shown in 1.02～1.2 times of internal diameter of air lance.
The wall thickness of described air lance is no more than 1.5mm.
Described air lance is that the wall thickness in segment welded structure and its exit is no more than 1.5mm.
A kind of combustion gas flameless combustion method of utmost point low-nitrogen oxide discharging, it comprises the following steps: the relative position that 1) regulates center exhaust gas nozzle and air lance, make the port of export of center exhaust gas nozzle concordant with the air lance port of export, the gas of opening high heating value carries out preheating as assisted gas to body of heater, assisted gas arrives flame holder through center exhaust gas nozzle, and meet with the gas that air lance is carried, in stove, burning forms flame; 2), when body of heater is heated to wall surface temperature higher than assisted gas self-ignition point, the combustion gas in the exhaust gas nozzle of main dispatching centre is for aphlogistic main combustion gas; 3) unclamp seal nipple, Mobility Center exhaust gas nozzle to the port of export of center exhaust gas nozzle is the internal diameter of the air lance of 2～8 times apart from the distance of the air lance port of export backward, again tighten again seal nipple, now through the main combustion gas of center exhaust gas nozzle ejection, meet and mix in air lance with air, by strengthening main combustion gas and air velocity, realize the flameless combustion of utmost point low-nitrogen oxide discharging.
The gas that described air lance is carried is air, or the oxygen of pure oxygen after inert gas dilution, or the mist of air and inert gas; Described main combustion gas is natural gas, or methane, ethane, or methane, the gas of ethane after inert gas dilution.
A kind of combustion gas flameless combustion method of utmost point low-nitrogen oxide discharging, it comprises the following steps: the relative position that 1) regulates center exhaust gas nozzle and air lance, make the port of export of center exhaust gas nozzle concordant with the air lance port of export, the gas of opening high heating value carries out preheating as assisted gas to body of heater, assisted gas arrives flame holder through center exhaust gas nozzle, and meet with the gas that air lance is carried, in stove, burning forms flame; 2) when body of heater is heated to wall surface temperature higher than combustion gas self-ignition point, closing center's exhaust gas nozzle, opens outer exhaust gas nozzle, and combustion gas switches to for aphlogistic main combustion gas; 3) unclamp seal nipple, Mobility Center exhaust gas nozzle to the port of export of center exhaust gas nozzle is the internal diameter of the air lance of 2～8 times apart from the distance of the air lance port of export backward, tighten again seal nipple, now main combustion gas and air meet in burner exit, for the combustion mode of non-premix, by strengthening combustion gas and air velocity, realize the flameless combustion of utmost point low-nitrogen oxide discharging.
The gas that described air lance is carried is air, or the oxygen of pure oxygen after inert gas dilution, or the mist of air and inert gas; Described main combustion gas is piped gas, or hydrogen, blast furnace gas, or hydrogen, the gas of blast furnace gas after inert gas dilution.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to being provided with a center exhaust gas nozzle that can move horizontally with respect to air lance, therefore can the present invention be changed between traditional combustion pattern and premixed combustion mode by the position relationship of adjusting between center exhaust gas nozzle and air lance, and then make the present invention all realize flameless combustion to different combustion gas, and can make the discharged nitrous oxides under the non-premix flameless combustion of premix state all reach extremely low level (5ppm left and right).2, the present invention is provided with a flame holder at the port of export of center exhaust gas nozzle, therefore can improve combustion stability and security.3, the present invention is simple in structure, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 be Fig. 1 along A-A to view;
Fig. 3 is the schematic diagram of the present invention under premixed combustion mode.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, the present invention includes an air lance 1, the outer exhaust gas nozzle 3 of a center exhaust gas nozzle 2, one and a flame holder 4.
Air lance 1 is a L shaped pipe, L shaped pipe wherein one section be arranged horizontally, the end of the horizontal segment of L shaped pipe is nozzle exit, L shaped pipe another section be air intlet; In the bending place of L shaped pipe, be provided with a horizontal branch pipe 11.
Center exhaust gas nozzle 2 is a straight tube, and it leaves annular space to form air duct through the rear parallel horizontal segment that stretches into air lance 1 of horizontal branch pipe 11 between air lance 1 and center exhaust gas nozzle 2.Center exhaust gas nozzle 2 is connected by a seal nipple 5 with horizontal branch pipe 11, and seal nipple 5 has the effect of sealing and fixed center exhaust gas nozzle 2.
Outer exhaust gas nozzle 3 is nested with and is sealedly connected on the outside of the horizontal segment of air lance 1, and a side of exhaust gas nozzle 3 is provided with a jet pipe import outside, leaves annular space to form outer blast tube between outer exhaust gas nozzle 3 and air lance 1.The horizontal segment of outer exhaust gas nozzle 3, air lance 1 and center exhaust gas nozzle 2 threes have coaxial relation, and the outlet of outer exhaust gas nozzle 3 is concordant with the end face of the outlet of air lance 1.
Flame holder 4 is arranged on the port of export of center exhaust gas nozzle 2.
In a preferred embodiment, flame holder 4 adopts with round nozzle 6 stable flame pan (as shown in Figure 2), spiral-flow type flame holder or bluff body flame holder.
In a preferred embodiment, centered by the internal diameter of air lance 1 1.1～1.7 times of the internal diameter of exhaust gas nozzle 2; The internal diameter of outer exhaust gas nozzle 3 is 1.02～1.2 times of internal diameter of air lance 1.
In a preferred embodiment, the wall thickness of air lance 1 is no more than the wall thickness that 1.5mm or air lance 1 realize exit with the form of segmentation welding and is no more than 1.5mm.Wall thickness between outer exhaust gas nozzle 3 and air lance 1 (being the wall thickness in air lance 1 exit) is thinner, is more conducive to realize under non-premixed the flameless combustion of utmost point low-nitrogen oxide discharging.
The present invention in use, for combustion gas of different nature, can adopt diverse ways to realize the flameless combustion of utmost point low-nitrogen oxide discharging in stove, and concrete combustion method is as follows:
One, for the slower combustion gas of the flame propagation velocities such as methane, natural gas:
1) body of heater warm-up phase, as shown in Figure 1, the port of export of center of the present invention exhaust gas nozzle 2 is concordant with air lance 1 port of export, and now the present invention is in traditional combustion pattern.The high gases of calorific value such as preheating assisted gas used is hydrogen, both can accelerate warm, and can reduce the heat dissipation in warm again, assisted gas arrives flame holder 4 through center exhaust gas nozzle 2, and meet with the gas of carrying through air lance 1, in stove, burning forms flame.Wherein, the gas that air lance 1 is carried can be air, or the oxygen of pure oxygen after inert gas (as nitrogen, carbon dioxide or hot flue gas) dilution, or the mist of air and inert gas.
2) when body of heater is heated, wall surface temperature is during higher than combustion gas self-ignition point, and the combustion gas in center exhaust gas nozzle 2 switches to for aphlogistic main combustion gas.Main combustion gas is natural gas, or methane, ethane, or methane, ethane are through the combustion gas of inert gas (as nitrogen, carbon dioxide or hot flue gas) dilution.
3) unclamp seal nipple 5, Mobility Center exhaust gas nozzle 2 is to premixed combustion mode state (as shown in Figure 3), more again tightens seal nipple 5.Now through the main combustion gas of center exhaust gas nozzle 2 ejections, meet and mix in air lance 1 with air, by strengthening main combustion gas and air velocity, realize the flameless combustion of utmost point low-nitrogen oxide discharging.Owing to being the flameless combustion of premix form, now discharged nitrous oxides can be to 5ppm.When Mobility Center exhaust gas nozzle 2, mobile Hou center exhaust gas nozzle 2 is the internal diameter of the air lance 2 of 2～8 times apart from the distance of air lance 1 port of export, contributes to the abundant mixing of combustion gas and air.
Two, for the combustion gas faster of the flame propagation velocities such as hydrogen, piped gas:
1) body of heater warm-up phase, as shown in Figure 1, the port of export of center of the present invention exhaust gas nozzle 2 is concordant with air lance 1 port of export, and now the present invention is in traditional combustion pattern.Preheating assisted gas used adopts the high gases of calorific value such as hydrogen to carry out body of heater preheating, both can accelerate warm, can reduce the heat dissipation in warm again.Assisted gas arrives flame holder 4 through center exhaust gas nozzle 2 and meets with the gas of carrying through air lance 1, and in stove, burning forms flame.Wherein, the gas that air lance 1 is carried can be air, or the oxygen of pure oxygen after inert gas (as nitrogen, carbon dioxide or hot flue gas) dilution, or the mist of air and inert gas.
2) when body of heater is heated, wall surface temperature is during higher than combustion gas self-ignition point, and closing center's exhaust gas nozzle 2, opens outer exhaust gas nozzle 3, and combustion gas switches to for aphlogistic main combustion gas.Main combustion gas is piped gas, or hydrogen, blast furnace gas, or hydrogen, blast furnace gas are through the combustion gas of inert gas (as nitrogen, carbon dioxide, hot flue gas) dilution.
3) unclamp seal nipple 5, Mobility Center exhaust gas nozzle 2 is to premixed combustion mode state (as shown in Figure 3), then tightens seal nipple 5.Now main combustion gas and air meet in burner exit, are the combustion mode of non-premix, realize the flameless combustion of utmost point low-nitrogen oxide discharging by strengthening combustion gas and air velocity.Different from the flameless burner of existing non-premix form, in the present invention, the distance of air and combustion gas is very near, has carried out mixing fast at burner outlet place, comparatively similar with the flameless combustion of premixed, and now discharged nitrous oxides can be down to 5ppm left and right.When Mobility Center exhaust gas nozzle 2, mobile Hou center exhaust gas nozzle 2 is the internal diameter of the air lance 2 of 2～8 times apart from the distance of air lance 1 port of export, contributes to the abundant mixing of combustion gas and air.
Design of the present invention is the principle based on following: through lot of experiments, find, by the design of Optimizing Combustion device, the aphlogistic discharged nitrous oxides of combustion gas can further reduce.Adopt the discharged nitrous oxides of the Flameless gas burner of premixed design to be down to below 5ppm.In the Flameless gas burner of existing non-premixed design, gas outlet and air outlet slit are distant, very near if gas outlet and air outlet slit are separated by, and realize discharged nitrous oxides after flameless combustion and also can be down to 5ppm left and right.
The present invention only describes with above-described embodiment; the structure of each parts, setting position and connection thereof all can change to some extent; on the basis of technical solution of the present invention; all improvement of indivedual parts being carried out according to the principle of the invention and equivalents, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. a combustion gas flameless combustion apparatus for utmost point low-nitrogen oxide discharging, is characterized in that, it comprises:
One air lance, described air lance is a L shaped pipe, described L shaped bend pipe wherein one section horizontally disposed, the end of the horizontal segment of described air lance is nozzle exit, in the bending place of described L shaped pipe, is provided with a horizontal branch pipe;
One center exhaust gas nozzle, described center exhaust gas nozzle is a straight tube, it leaves annular space to form air duct through the parallel horizontal segment that stretches into described air lance after described horizontal branch pipe between described air lance and described center exhaust gas nozzle; Described center exhaust gas nozzle is connected by a seal nipple with described horizontal branch pipe;
One outer exhaust gas nozzle, the outside of the horizontal segment of described air lance is put and be sealedly connected on to described outer gas injection pipe box, a side at described outer exhaust gas nozzle is provided with a jet pipe import, leaves annular space to form outer blast tube between described outer exhaust gas nozzle and described air lance; Horizontal segment and the center exhaust gas nozzle three of described outer exhaust gas nozzle, air lance have coaxial relation, and the end face of the outlet of described outer exhaust gas nozzle and the outlet of described air lance is concordant;
Described flame holder is arranged on the port of export of described center exhaust gas nozzle.
2. the combustion gas flameless combustion apparatus of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 1, is characterized in that, described flame holder adopts stable flame pan, spiral-flow type flame holder or the bluff body flame holder with round nozzle.
3. the combustion gas flameless combustion apparatus of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 1, is characterized in that, the internal diameter of described air lance is 1.1～1.7 times of internal diameter of described center exhaust gas nozzle; The internal diameter of described outer exhaust gas nozzle be shown in 1.02～1.2 times of internal diameter of air lance.
4. the combustion gas flameless combustion apparatus of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 2, is characterized in that, the internal diameter of described air lance is 1.1～1.7 times of internal diameter of described center exhaust gas nozzle; The internal diameter of described outer exhaust gas nozzle be shown in 1.02～1.2 times of internal diameter of air lance.
5. the combustion gas flameless combustion apparatus of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 1 or 2 or 3 or 4, is characterized in that, the wall thickness of described air lance is no more than 1.5mm.
6. the combustion gas flameless combustion apparatus of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described air lance is that the wall thickness in segment welded structure and its exit is no more than 1.5mm.
7. a combustion method for the combustion gas flameless combustion apparatus based on utmost point low-nitrogen oxide discharging as described in any one in claim 1 to 6, it comprises the following steps:
1) regulate the relative position of center exhaust gas nozzle and air lance, make the port of export of center exhaust gas nozzle concordant with the air lance port of export, the gas of opening high heating value carries out preheating as assisted gas to body of heater, assisted gas arrives flame holder through center exhaust gas nozzle, and meet with the gas that air lance is carried, in stove, burning forms flame;
2), when body of heater is heated to wall surface temperature higher than assisted gas self-ignition point, the combustion gas in the exhaust gas nozzle of main dispatching centre is for aphlogistic main combustion gas;
3) unclamp seal nipple, Mobility Center exhaust gas nozzle to the port of export of center exhaust gas nozzle is the internal diameter of the air lance of 2～8 times apart from the distance of the air lance port of export backward, again tighten again seal nipple, now through the main combustion gas of center exhaust gas nozzle ejection, meet and mix in air lance with air, by strengthening main combustion gas and air velocity, realize the flameless combustion of utmost point low-nitrogen oxide discharging.
8. the combustion gas flameless combustion method of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 7, it is characterized in that, the gas that described air lance is carried is air, or the oxygen of pure oxygen after inert gas dilution, or the mist of air and inert gas; Described main combustion gas is natural gas, or methane, ethane, or methane, the gas of ethane after inert gas dilution.
9. a combustion method for the combustion gas flameless combustion apparatus based on utmost point low-nitrogen oxide discharging as described in any one in claim 1 to 6, it comprises the following steps:
1) regulate the relative position of center exhaust gas nozzle and air lance, make the port of export of center exhaust gas nozzle concordant with the air lance port of export, the gas of opening high heating value carries out preheating as assisted gas to body of heater, assisted gas arrives flame holder through center exhaust gas nozzle, and meet with the gas that air lance is carried, in stove, burning forms flame;
2) when body of heater is heated to wall surface temperature higher than combustion gas self-ignition point, closing center's exhaust gas nozzle, opens outer exhaust gas nozzle, and combustion gas switches to for aphlogistic main combustion gas;
3) unclamp seal nipple, Mobility Center exhaust gas nozzle to the port of export of center exhaust gas nozzle is the internal diameter of the air lance of 2～8 times apart from the distance of the air lance port of export backward, tighten again seal nipple, now main combustion gas and air meet in burner exit, for the combustion mode of non-premix, by strengthening combustion gas and air velocity, realize the flameless combustion of utmost point low-nitrogen oxide discharging.
10. the combustion gas flameless combustion method of a kind of utmost point low-nitrogen oxide discharging as claimed in claim 9, it is characterized in that, the gas that described air lance is carried is air, or the oxygen of pure oxygen after inert gas dilution, or the mist of air and inert gas; Described main combustion gas is piped gas, or hydrogen, blast furnace gas, or hydrogen, the gas of blast furnace gas after inert gas dilution.
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| CN201410383613.8A CN104132344B (en) | 2014-08-06 | 2014-08-06 | The combustion gas flameless combustion apparatus of a kind of extremely low discharged nitrous oxides and combustion method |
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| CN201410383613.8A CN104132344B (en) | 2014-08-06 | 2014-08-06 | The combustion gas flameless combustion apparatus of a kind of extremely low discharged nitrous oxides and combustion method |
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| CN104990078A (en) * | 2015-07-20 | 2015-10-21 | 北京大学 | Combustor capable of quickly realizing flameless combustion |
| CN105546535A (en) * | 2016-02-22 | 2016-05-04 | 中国科学院工程热物理研究所 | Nozzle adopting double operating modes, nozzle array and burner |
| CN105737200A (en) * | 2016-03-28 | 2016-07-06 | 中国科学院工程热物理研究所 | Atomizing nozzle, nozzle array and combustor |
| CN105910136A (en) * | 2016-04-18 | 2016-08-31 | 中国科学院工程热物理研究所 | Adjustable nozzle, nozzle array and combustor |
| CN107143845A (en) * | 2017-06-27 | 2017-09-08 | 重庆富燃科技股份有限公司 | A kind of combustion gas or fuel oil and air or pure oxygen premixing combustion apparatus |
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| CN111520717A (en) * | 2020-04-09 | 2020-08-11 | 华侨大学 | Hierarchical low-nitrogen gas burner based on rotational flow |
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| CN104990078A (en) * | 2015-07-20 | 2015-10-21 | 北京大学 | Combustor capable of quickly realizing flameless combustion |
| CN104990078B (en) * | 2015-07-20 | 2017-11-17 | 北京大学 | A kind of burner that can quickly realize flameless combustion |
| CN105546535B (en) * | 2016-02-22 | 2018-03-09 | 中国科学院工程热物理研究所 | A kind of double working modes nozzle, nozzle array and burner |
| CN105546535A (en) * | 2016-02-22 | 2016-05-04 | 中国科学院工程热物理研究所 | Nozzle adopting double operating modes, nozzle array and burner |
| CN105737200A (en) * | 2016-03-28 | 2016-07-06 | 中国科学院工程热物理研究所 | Atomizing nozzle, nozzle array and combustor |
| CN105737200B (en) * | 2016-03-28 | 2019-04-30 | 中国科学院工程热物理研究所 | A kind of atomizer, nozzle array and burner |
| CN105910136A (en) * | 2016-04-18 | 2016-08-31 | 中国科学院工程热物理研究所 | Adjustable nozzle, nozzle array and combustor |
| CN105910136B (en) * | 2016-04-18 | 2018-09-04 | 中国科学院工程热物理研究所 | A kind of adjustable nozzles, nozzle array and burner |
| CN107143845A (en) * | 2017-06-27 | 2017-09-08 | 重庆富燃科技股份有限公司 | A kind of combustion gas or fuel oil and air or pure oxygen premixing combustion apparatus |
| CN110566956A (en) * | 2019-10-14 | 2019-12-13 | 康柏森热能科技(苏州)有限公司 | Combustion device with air inlet mode switching function |
| CN111520717A (en) * | 2020-04-09 | 2020-08-11 | 华侨大学 | Hierarchical low-nitrogen gas burner based on rotational flow |
| CN111520717B (en) * | 2020-04-09 | 2024-06-07 | 华侨大学 | Hierarchical low nitrogen gas burner based on whirl |
| CN117028989A (en) * | 2023-08-10 | 2023-11-10 | 西安交通大学 | Hydrogen micro-mixed combustor based on wet oxygen and combustion method |
| CN117028989B (en) * | 2023-08-10 | 2024-04-09 | 西安交通大学 | Hydrogen micro-mixed combustor based on wet oxygen and combustion method |
| CN117823946A (en) * | 2023-12-29 | 2024-04-05 | 西安交通大学 | Hydrogen-rich or pure hydrogen flexible fuel combustion flame stabilizing spray head and combustor |
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|---|---|
| CN104132344B (en) | 2016-06-29 |
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