CN111425855A - Flame burner and combustion test system thereof - Google Patents
Flame burner and combustion test system thereof Download PDFInfo
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- CN111425855A CN111425855A CN202010068235.XA CN202010068235A CN111425855A CN 111425855 A CN111425855 A CN 111425855A CN 202010068235 A CN202010068235 A CN 202010068235A CN 111425855 A CN111425855 A CN 111425855A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 86
- 238000012360 testing method Methods 0.000 title claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims abstract description 22
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 55
- 238000002156 mixing Methods 0.000 claims description 17
- 239000000112 cooling gas Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000003595 mist Substances 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000011160 research Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 4
- 238000007706 flame test Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- 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
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the technical field of burners, and discloses a flame burner and a combustion test system thereof, which comprise a shell, an air inlet pipe, a combustion pipe and a ventilation assembly, wherein the air inlet pipe is arranged on the shell along the vertical direction, the top end of the air inlet pipe is provided with a first air inlet, the bottom end of the air inlet pipe is connected with the combustion pipe, the ventilation assembly is arranged between the air inlet pipe and the combustion pipe, the ventilation assembly is provided with a plurality of gaps for gas to uniformly pass through, and the combustion pipe is made of transparent materials. Utilize the intake pipe lets in the mist from the top down, the subassembly of ventilating plays the effect of blockking to the mist for the mist dispersion is and pass through a plurality of the clearance, the combustion tube obtains stable even air current, makes the flame of burning stay in the combustion tube, is convenient for utilize optical equipment to pass through the mechanism of combustion tube in to flame burning process is studied.
Description
Technical Field
The invention relates to the technical field of combustors, in particular to a flame combustor and a combustion test system thereof.
Background
With the development of laser and CCD technology in recent years, optical technology becomes an important means for studying flame combustion process and combustion mechanism because it can perform non-contact measurement and diagnosis of combustion phenomenon, combustion intermediate product and pollutant discharged by combustion.
The existing laminar premixed flame-related burners are upward-propagating, i.e. the mixture is input from the bottom of the burner, and the design of burning from the top cannot observe other phenomena, such as a globular flame phenomenon, which may occur in the downward-propagating laminar premixed flame. The gas flow and the stability in the combustor cannot meet the requirement of accurate control in China, so that the flame is difficult to be stable under the same working condition, the repeatability is poor, and the experimental measurement is very unfavorable.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to ensure the stability of the flame combustion process and enable optical tests.
In order to solve the technical problem, the invention provides a flame burner, which comprises a shell, an air inlet pipe, a combustion pipe and a ventilation assembly, wherein the air inlet pipe is arranged on the shell along the vertical direction, the top end of the air inlet pipe is provided with a first air inlet, the bottom end of the air inlet pipe is connected with the combustion pipe, the ventilation assembly is arranged between the air inlet pipe and the combustion pipe, the ventilation assembly is provided with a plurality of gaps for air to uniformly pass through, and the combustion pipe is made of a transparent material.
Preferably, the casing includes a top plate, a bottom plate, and a side plate, the side plate is disposed between the top plate and the bottom plate, so that the top plate, the bottom plate, and the side plate enclose a cavity for accommodating the intake pipe, the top plate is provided with a first mounting hole for mounting the intake pipe, and the bottom plate is provided with a second mounting hole for mounting the intake pipe or the combustion pipe.
Preferably, the side plate is provided with a second air inlet leading to the cavity, a sealing element is arranged between the first mounting hole and the air inlet pipe, and an air outlet groove used for communicating the cavity with outside air is arranged between the second mounting hole and the air inlet pipe or between the second mounting hole and the combustion pipe.
Preferably, the ventilation assembly comprises a metal net, a metal ball and a porous plate which are sequentially overlapped.
Preferably, the portable electronic device further comprises a fixing plate and a connecting plate, wherein the fixing plate is located below the shell, one end of the connecting plate is connected with the shell, and the other end of the connecting plate is connected with the fixing plate.
Preferably, the air inlet pipe is abutted with the ventilation assembly, the ventilation assembly is abutted with the combustion pipe, the combustion pipe is abutted with the fixing plate, the fixing plate is provided with a vent hole leading to the combustion pipe, and a gasket is arranged between the air inlet pipe and the ventilation assembly and/or between the ventilation assembly and the combustion pipe and/or between the combustion pipe and the fixing plate.
As the preferred scheme, still include adjusting screw and elastic component, adjusting screw along vertical direction with casing threaded connection, the intake pipe is equipped with the confession adjusting screw passes the hole site, the one end of elastic component with the intake pipe is connected, the other end of elastic component with adjusting screw is connected.
The invention also provides a flame combustion testing system, which comprises a gas mixing chamber, a compressed gas pipeline, at least one combustible gas pipeline and the flame burner as claimed in any one of claims 1 to 7, wherein the compressed gas pipeline and the combustible gas pipeline are respectively connected with an inlet of the gas mixing chamber, and an outlet of the gas mixing chamber is connected with a first gas inlet of the flame burner.
Preferably, the gas burner further comprises a cooling gas pipeline, and the cooling gas pipeline is connected with the second gas inlet of the flame burner.
Preferably, a flame retardant device is arranged between the gas mixing chamber and the flame burner.
Compared with the prior art, the flame burner provided by the invention has the beneficial effects that:
according to the invention, the air inlet pipe is used for introducing the mixed gas from top to bottom, the ventilation assembly has a blocking effect on the mixed gas, so that the mixed gas is dispersed and uniformly introduced into the combustion pipe through the gaps for carrying out combustion flame test, the combustion pipe obtains stable and uniform airflow, the combustion flame is retained in the combustion pipe, the mechanism of the flame in the combustion process is conveniently researched through the combustion pipe by using an optical device, the device has the advantages of good stability, strong repeatability, convenience in control and the like, the combustion flames under different working conditions can be obtained, and the research on the combustion mechanism in scientific research is conveniently carried out.
Drawings
FIG. 1 is a schematic sectional view of a flame burner according to a preferred embodiment of the present invention.
Fig. 2 is a schematic perspective view of a flame burner according to a preferred embodiment of the present invention.
FIG. 3 is a schematic view showing the overall structure of a flame testing system according to a preferred embodiment of the present invention.
In the figure: 1. a housing; 2. an air inlet pipe; 3. a combustion tube; 4. a vent assembly; 5. a first air inlet; 6. a cavity; 7. a second air inlet; 8. a seal member; 9. an air outlet groove; 10. a fixing plate; 11. a connecting plate; 12. a vent hole; 13. a gasket; 14. adjusting the screw rod; 15. an elastic member; 16. a gas mixing chamber; 17. a compressed gas line; 18. a combustible gas pipeline; 19. a cooling gas line; 20. a three-way interface; 21. a flame arrester; 22. a manual valve; 23. a flow controller; 24. a one-way valve; 25. a throttle valve.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in a broad sense, and for example, the terms "connected," "connected," and "fixed" may be fixed, detachable, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 2, a preferred embodiment of the present invention provides a flame burner, which includes a housing 1, an air inlet pipe 2, a combustion pipe 3, and an air vent assembly 4, wherein the air inlet pipe 2 is disposed on the housing 1 along a vertical direction, a first air inlet 5 is disposed at a top end of the air inlet pipe 2, a bottom end of the air inlet pipe 2 is connected to the combustion pipe 3, the air vent assembly 4 is disposed between the air inlet pipe 2 and the combustion pipe 3, the air vent assembly 4 is provided with a plurality of gaps through which air can uniformly pass, and the combustion pipe 3 is made of a transparent material.
Flame burner based on above-mentioned technical characteristics utilizes intake pipe 2 lets in the mist from the top down, subassembly 4 of ventilating plays the effect of blockking to the mist for the mist dispersion is a plurality of the clearance evenly accesss to the combustion tube 3 carries out the burning flame test, combustion tube 3 obtains stable even air current, makes the flame of burning stay in combustion tube 3 is convenient for utilize optical equipment to pass through combustion tube 3 studies the mechanism in the flame combustion process, has advantages such as stable good, repeatability is strong, the control of being convenient for, can obtain the burning flame under the different operating modes, conveniently carries out the research to the burning mechanism in the scientific research teaching.
In this embodiment, casing 1 includes roof, bottom plate and curb plate, the curb plate is located the roof with between the bottom plate, so that the roof the bottom plate with the curb plate encloses to become to be used for the holding intake pipe 2's cavity 6, the roof is equipped with the installation intake pipe 2's first mounting hole, the bottom plate installation intake pipe 2 or the second mounting hole of burner 3 makes intake pipe 2 passes through first mounting hole with vertical direction setting is realized to the second mounting hole, and the mist of being convenient for lets in from top to bottom.
Further, the curb plate is equipped with and accesss to second air inlet 7 in the cavity 6, first mounting hole with be equipped with sealing member 8 between the intake pipe 2, the second mounting hole with intake pipe 2 or be equipped with between the combustion tube 3 and be used for the intercommunication cavity 6 and outside air's air outlet groove 9, second air inlet 7 is used for past let in cooling gas in the cavity 6, air outlet groove 9 guide cooling gas laminate in the outer wall of combustion tube 3 flows out, realizes doing combustion tube 3 cools off the temperature, improves life, sealing member 8 is the sealing washer, avoids cooling gas to follow first mounting hole department is revealed. The second air inlets 7 are formed in the left side and the right side of the side plates, enter the left side and the right side of the cavity 6 and flow out from the lower portion, and the cooling effect is better.
In this embodiment, the ventilation assembly 4 includes metal mesh, metal ball and perforated plate that superpose in proper order, metal mesh and the perforated plate will the metal ball is cliied, forms three layer construction for form between each metal ball and supply the clearance that the mist passed through, realize the effect of stable air current jointly.
In this embodiment, the combustion tube 3 is a quartz glass tube, which is high temperature resistant and has good transparency, and the air inlet tube 2 is a copper tube.
In this embodiment, still include fixed plate 10 and connecting plate 11, fixed plate 10 is located casing 1's below, combustion tube 3 is located casing 1 with between the fixed plate 10, the one end of connecting plate 11 with casing 1's curb plate is connected, the other end of connecting plate 11 with fixed plate 10 is connected, realizes will casing 1 is maked somebody's hair to do the installation, is convenient for right the burning flame of combustion tube 3 carries out the record research, avoids causing too much sight to block.
Further, the air inlet pipe 2 is abutted with the ventilation assembly 4, the ventilation assembly 4 is abutted with the combustion pipe 3, the combustion pipe 3 is abutted with the fixing plate 10, the fixing plate 10 is provided with a vent hole 12 leading to the combustion pipe 3, and a gasket 13 is arranged between the air inlet pipe 2 and the ventilation assembly 4 and/or between the ventilation assembly 4 and the combustion pipe 3 and/or between the combustion pipe 3 and the fixing plate 10, so that the mixed gas is prevented from leaking out from the connection position among the air inlet pipe 2, the ventilation assembly 4 and the combustion pipe 3.
Specifically, the air inlet pipe structure further comprises an adjusting screw 14 and an elastic part 15, the adjusting screw 14 is in threaded connection with a top plate of the shell 1 along the vertical direction, the air inlet pipe 2 is provided with a hole for the adjusting screw 14 to penetrate through, one end of the elastic part 15 is connected with the air inlet pipe 2, the other end of the elastic part 15 is connected with the adjusting screw 14, the adjusting screw 14 is screwed, so that the air inlet pipe 2, the ventilation assembly 4 and the combustion pipe 3 sequentially press the fixing plate 10 and are pressed on the gasket 13 to achieve the effect of pressing and preventing air leakage, the elastic part 15 is a spring, pressing force can be conveniently adjusted, and damage caused by overlarge adjusting force is avoided.
As shown in fig. 3, the present invention further provides a flame combustion testing system, which includes a gas mixing chamber 16, a compressed gas pipeline 17, at least one combustible gas pipeline 18, and the flame burner, wherein the compressed gas pipeline 17 and the combustible gas pipeline 18 are respectively connected to an inlet of the gas mixing chamber 16, and an outlet of the gas mixing chamber 16 is connected to the first gas inlet 5 of the flame burner.
Based on the flame combustion test system of above-mentioned technical characteristics, utilize gas mixing cabin 16 realizes carrying out intensive mixing to multiple gas, delivers to flame burner carries out the combustion test, can realize the accurate control to combustible gas and air to can replace combustible gas, form different gas mixture's combustion flame, can obtain the combustion flame under the different operating modes, have characteristics such as commonality strong.
In this embodiment, the gas burner further includes a cooling gas pipeline 19, the cooling gas pipeline 19 is connected to the second gas inlet 7 of the flame burner, and the cooling gas pipeline 19 is divided into two paths, i.e., a left path and a right path, through a three-way connector 20, so as to cool the gas inlet pipe 2 and the combustion pipe 3.
In this embodiment, a flame arrester 21 is disposed between the gas mixing chamber 16 and the flame burner to prevent the combustion flame from propagating back through the conduit into the gas mixing chamber 16.
Wherein the compressed gas line 17 provides compressed air using a compressed air tank, and the combustible gas line 18 provides fuel gas (e.g., CH) through a combustible gas tank4-methane, H2Hydrogen and the like), the compressed gas pipeline 17 and the combustible gas pipeline 18 are respectively provided with a manual valve 22, a flow controller 23 and a one-way valve 24, and the three gases are fully mixed in the gas mixing cabin 16 by adjusting the proportion of the gas contents through the manual valve 22 and the flow controller 23; the cooling gas line 19 may use compressed air as cooling gas, and a manual valve 22 and a throttle valve 25 are disposed in the cooling gas line 19 to regulate the cooling gas.
To sum up, the embodiment of the invention provides a flame burner and a combustion test system thereof, which are laminar premixed flame test systems used for early-stage experimental debugging of optical experiments, such as spherical flame phenomenon, can provide stable, good-repeatability and conveniently-controlled laminar premixed flames by accurately controlling the proportion of fuel and air, obtain laminar premixed flames with downward propagation directions under different working conditions, explore the possible combustion phenomenon and mechanism in the combustion process, facilitate research on combustion mechanism in scientific research and teaching, perfect further research and development on combustion flames, and make up for the defects of the prior art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The flame burner is characterized by comprising a shell, an air inlet pipe, a combustion pipe and an air ventilation assembly, wherein the air inlet pipe is arranged on the shell along the vertical direction, a first air inlet is formed in the top end of the air inlet pipe, the bottom end of the air inlet pipe is connected with the combustion pipe, the air ventilation assembly is arranged between the air inlet pipe and the combustion pipe, a plurality of gaps for air to uniformly pass through are formed in the air ventilation assembly, and the combustion pipe is made of a transparent material.
2. The flame burner of claim 1, wherein the housing includes a top plate, a bottom plate, and a side plate disposed between the top plate and the bottom plate such that the top plate, the bottom plate, and the side plate enclose a cavity for receiving the air inlet pipe, the top plate having a first mounting hole for mounting the air inlet pipe, the bottom plate having a second mounting hole for mounting the air inlet pipe or the burner tube.
3. The flame burner of claim 2, wherein the side plate is provided with a second air inlet opening into the cavity, a seal is provided between the first mounting hole and the air inlet pipe, and an air outlet groove for communicating the cavity with outside air is provided between the second mounting hole and the air inlet pipe or the combustion pipe.
4. The flame burner of claim 1, wherein the vent assembly includes a metal mesh, a metal ball, and a perforated plate stacked in sequence.
5. The flame burner of claim 1, further comprising a fixing plate located below the housing, and a connecting plate having one end connected to the housing and the other end connected to the fixing plate.
6. The flame burner of claim 5, wherein the inlet tube abuts the breather assembly, the breather assembly abuts the combustion tube, the combustion tube abuts the stationary plate, the stationary plate is provided with a vent to the combustion tube, and a gasket is disposed between the inlet tube and the breather assembly and/or between the breather assembly and the combustion tube and/or between the combustion tube and the stationary plate.
7. The flame burner of claim 5, further comprising an adjusting screw threaded to the housing in a vertical direction, wherein the air inlet pipe is provided with a hole through which the adjusting screw passes, and an elastic member having one end connected to the air inlet pipe and the other end connected to the adjusting screw.
8. Flame combustion testing system, comprising a gas mixing chamber, a compressed gas line, at least one combustible gas line and a flame burner according to any of claims 1 to 7, the compressed gas line and the combustible gas line being connected to an inlet of the gas mixing chamber, respectively, and an outlet of the gas mixing chamber being connected to a first gas inlet of the flame burner.
9. The flame combustion testing system of claim 8, further comprising a cooling gas line coupled to the second gas inlet of the flame burner.
10. The flame combustion testing system of claim 8, wherein a flame arrestor is disposed between the gas mixing chamber and the flame burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068235.XA CN111425855A (en) | 2020-01-19 | 2020-01-19 | Flame burner and combustion test system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068235.XA CN111425855A (en) | 2020-01-19 | 2020-01-19 | Flame burner and combustion test system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111425855A true CN111425855A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068235.XA Pending CN111425855A (en) | 2020-01-19 | 2020-01-19 | Flame burner and combustion test system thereof |
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| CN (1) | CN111425855A (en) |
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| CN106402861A (en) * | 2016-11-11 | 2017-02-15 | 江苏弗雷姆环境科技有限公司 | Industrial gas ultralow-nitrogen energy-saving spiral combustion head and combustor |
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| CN211781066U (en) * | 2020-01-19 | 2020-10-27 | 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) | Flame burner and combustion test system thereof |
-
2020
- 2020-01-19 CN CN202010068235.XA patent/CN111425855A/en active Pending
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|---|---|---|---|---|
| GB190605714A (en) * | 1906-03-09 | 1907-03-09 | Proskauer & Co G M B H | Improvements in Downwardly Burning Gas Light Incandescent Lamps with Preheated Air. |
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