CN112344326A - Flame adjustable burner for combustion of hydrogen, oxygen and fuel - Google Patents
Flame adjustable burner for combustion of hydrogen, oxygen and fuel Download PDFInfo
- Publication number
- CN112344326A CN112344326A CN202011231156.2A CN202011231156A CN112344326A CN 112344326 A CN112344326 A CN 112344326A CN 202011231156 A CN202011231156 A CN 202011231156A CN 112344326 A CN112344326 A CN 112344326A
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- Prior art keywords
- combustion
- oxyhydrogen
- fuel
- cyclone
- nozzle
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- 239000000446 fuel Substances 0.000 title claims abstract description 110
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 70
- 239000001301 oxygen Substances 0.000 title description 5
- 229910052760 oxygen Inorganic materials 0.000 title description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title description 4
- 239000001257 hydrogen Substances 0.000 title description 4
- 229910052739 hydrogen Inorganic materials 0.000 title description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title 1
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000004449 solid propellant Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 62
- 230000008859 change Effects 0.000 abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000006229 carbon black Substances 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
- F23D11/383—Nozzles; Cleaning devices therefor with swirl means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D17/00—Burners for combustion conjointly or alternatively of gaseous or liquid or pulverulent fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a flame adjustable burner for combustion of oxyhydrogen and fuel, which comprises: the device comprises a oxyhydrogen and fuel mixing and spraying device, a rotary airflow adjusting structure and a combustion nozzle; the rotary airflow adjusting structure comprises an air inlet shell, and a cyclone, a rotary adjuster and an adjuster which are connected in sequence, wherein the cyclone and the rotary adjuster are arranged in the air inlet shell; the combustion nozzle is arranged at the air outlet of the air inlet shell; the cyclone, the rotation adjusting device and the combustion nozzle are communicated to form an air outlet channel; the oxyhydrogen gas and fuel mixing and spraying device is arranged in the air outlet channel. The flame adjustable burner for oxyhydrogen and fuel combined combustion can change the swirl strength at the outlet of combustion air and achieve the change between the length of combustion flame under the condition of constant combustion power. The catalytic property of oxyhydrogen is utilized to improve the ignition performance of the fuel, improve the burnout rate, reduce carbon black in the flue gas and reduce the pollution of combustion to the environment.
Description
Technical Field
The invention relates to the technical field of industrial heating burners, in particular to a flame adjustable burner for combustion of oxyhydrogen and fuel.
Background
Industrial heating burners use liquid fuels: diesel, heavy oil, etc., or gaseous fuel: natural gas, liquefied gas and the like are common, and the oxidant is generally air directly. The flame shape of the burner mainly depends on the mixing flow state of air and fuel, and the volume flow rate of the air is far larger than that of the fuel in the fuel with high heat value due to the relation of oxygen content of the air, so that the air flow state also mainly determines the flame shape. In industrial heating, the flame shape of a burner can be adjusted at any time under the condition of constant heating power under the requirements of the shape of a furnace body and a heating process, so that the production requirement is met. The prior art also adopts an adjustable method to adjust the airflow form, and the requirements are often not met due to the limitation of the structure of the burner.
Disclosure of Invention
The invention mainly solves the technical problem of providing a flame adjustable burner for combustion of oxyhydrogen and fuel, which can change the swirl strength at a combustion air outlet and achieve the change of the length of combustion flame under the condition of constant combustion power. The catalytic property of oxyhydrogen is utilized to improve the ignition performance of the fuel, improve the burnout rate, reduce carbon black in the flue gas and reduce the pollution of combustion to the environment.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a flame adjustable nozzle that oxyhydrogen and fuel combine burning, includes: the device comprises a oxyhydrogen and fuel mixing and spraying device, a rotary airflow adjusting structure and a combustion nozzle; the rotary airflow adjusting structure comprises an air inlet shell, and a cyclone, a rotary adjuster and an adjuster which are connected in sequence, wherein the cyclone and the rotary adjuster are arranged in the air inlet shell; the combustion nozzle is arranged at the air outlet of the air inlet shell; the cyclone, the rotation adjusting device and the combustion nozzle are communicated to form an air outlet channel; the oxyhydrogen gas and fuel mixing and spraying device is arranged in the air outlet channel.
In a preferred embodiment of the present invention, the fuel to be burned in combination with oxyhydrogen gas is a liquid fuel, and may be designed as a gaseous fuel, a solid fuel, or a mixture of multiple fuels.
In a preferred embodiment of the invention, the combustion nozzle is flared.
In a preferred embodiment of the present invention, the rotary air flow adjustment structure is adjusted by an adjuster to have two positions: a combustion air tangential entry location and a combustion air radial entry location.
In a preferred embodiment of the invention, the rotary air flow regulating structure is positioned at the tangential entering position of combustion air, and radial diffusion air flow is formed at the combustion nozzle, so that short flame and flat flame are formed.
In a preferred embodiment of the invention, the rotating gas flow regulating structure is located at the radial inlet position of combustion air, and the axial gas flow is formed at the combustion nozzle to form a torch-shaped long flame.
In a preferred embodiment of the present invention, the air inlet housing comprises an internal cavity, an air inlet and an air outlet; the air duct is positioned at the air outlet; the rotation adjusting device and the cyclone are positioned in the inner cavity, the rotation adjusting device comprises a rear sleeve and a rotation adjusting pipe, the rear sleeve is installed at the tail end of the inner cavity, the rotation adjusting pipe comprises a groove-opening section and a sealing section, and the groove-opening section of the rotation adjusting pipe is connected with the rear sleeve in a sleeved mode; one end of the cyclone is connected with the sealing section of the coil adjusting pipe, and the other end of the cyclone is connected with the air duct;
the regulator is connected with the adjusting coil pipe, and the adjusting coil pipe moves back and forth between the rear sleeve pipe and the air guide pipe; when the coil adjusting pipe is positioned at the rear end, the cyclone is communicated with the air duct to form a cyclone channel; when the adjusting coil pipe is positioned at the front end, the adjusting coil pipe is communicated with the air duct to form a direct wind channel.
In a preferred embodiment of the invention, the cyclone comprises a cyclone front cover, a cyclone rear cover and blades, the blades are arranged between the cyclone front cover and the cyclone rear cover, the sealing section of the rotation adjusting pipe is connected with the cyclone rear cover, and the air duct is connected with the cyclone front cover.
In a preferred embodiment of the present invention, the adjuster includes an adjusting structure and a connecting rod, the adjusting structure is installed outside the air intake casing, one end of the connecting rod is connected with the adjusting structure, and the other end of the connecting rod is connected with the adjusting coil.
In a preferred embodiment of the invention, the oxyhydrogen gas and fuel mixing and spraying device comprises a central oxyhydrogen gas nozzle, an atomized fuel nozzle and an outer oxyhydrogen gas nozzle, wherein the central oxyhydrogen gas nozzle, the atomized fuel nozzle and the outer oxyhydrogen gas nozzle are integrated in a concentric sleeve mode.
The invention has the beneficial effects that: the flame adjustable burner for oxyhydrogen and fuel combined combustion can change the swirl strength at the outlet of combustion air, achieves the change between the length of combustion flame under the condition of constant combustion power, and is simple to operate. The catalytic property of oxyhydrogen is utilized to improve the ignition performance of the fuel, improve the burnout rate, reduce carbon black in the flue gas and reduce the pollution of combustion to the environment.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of a flame adjustable burner for combustion of oxyhydrogen gas and fuel according to the present invention;
FIG. 2 is a schematic view of the rotary air flow regulating structure in a tangential combustion air entry position;
FIG. 3 is a schematic view of the rotary air flow regulating structure in a tangential combustion air entry position;
FIG. 4 is a schematic perspective view of a preferred embodiment of the oxyhydrogen gas and fuel mixture injection apparatus according to the present invention;
FIG. 5 is a view showing an internal structure of the oxyhydrogen gas-fuel mixture injection apparatus shown in FIG. 4;
FIG. 6 is a detail drawing of the internal structure of FIG. 5;
FIG. 7 is a schematic perspective view of a preferred embodiment of a rotary air flow adjustment structure of the present invention;
FIG. 8 is a sectional view of the internal structure of the first state of the rotating airflow adjustment structure shown in FIG. 7;
FIG. 9 is a sectional view A-A of FIG. 8;
FIG. 10 is a sectional view of the internal structure of the second state of the rotating airflow adjustment structure shown in FIG. 7;
FIG. 11 is a cross-sectional view B-B of FIG. 10;
FIG. 12 is a schematic view of the mounting structure of the regulator of FIG. 7;
fig. 13 is a sectional view of the internal structure in the first state of another preferred embodiment of the rotary airflow regulating structure of the present invention.
The parts in the drawings are numbered as follows:
100-oxyhydrogen gas and fuel mixed ejection device, 110-oxyhydrogen gas nozzle at the center, 111-center oxyhydrogen gas interface, 112-center oxyhydrogen gas channel, 113-center oxyhydrogen gas spray hole, 120-atomized fuel nozzle, 121-fuel interface, 122-compressed air interface, 123-fuel channel, 124-atomized gas channel, 125-fuel spray hole, 126-atomized gas spray hole, 127-atomized gas seal groove, 128-emulsified mixing chamber, 129-emulsified mixed solution spray hole, 130-movable adjusting device, 131-seal ring, 132-pressing sleeve, 133-left and right threaded joint, 134-guide rod, 140-oxyhydrogen gas nozzle at the outer side, 141-outer oxyhydrogen gas interface, 142-outer oxyhydrogen gas channel, 142-fuel nozzle at the center, oxygen gas nozzle at the outer side, oxygen gas nozzle at the center, oxygen gas nozzle at, 143-outer hydrogen-oxygen jet hole; 200-rotary airflow adjusting structure, 210-air duct, 220-cyclone front cover, 230-blade, 240-cyclone rear cover, 250-adjusting spiral pipe, 260-connecting rod, 270-air inlet casing, 280-rear sleeve, 290-adjusting structure, 291-outer spiral pipe, 292-inner spiral pipe and 293-handle; 300-combustion nozzle.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1-13, it should be noted that the drawings provided in this embodiment illustrate the basic concept of the present invention, and the components related to the present invention are drawn according to the number, shape and size of the components in practical implementation. The embodiment of the invention comprises the following steps:
as shown in fig. 1, a flame adjustable burner for combustion of oxyhydrogen gas and fuel comprises: oxyhydrogen gas and fuel mixture injection device 100, rotating airflow regulating structure 200, and combustion nozzle 300. The oxyhydrogen and fuel mixing and spraying device 100 is installed in the center of the burner, and the rotary airflow adjusting structure 200 is positioned on the concentric outer side of the oxyhydrogen and fuel mixing and spraying device 100 and is concentrically connected with the combustion nozzle 300 positioned at the front end. The combustion nozzle 300 has a function of stabilizing flame, and the combustion nozzle 300 is shaped like a bell mouth in the embodiment.
As shown in connection with fig. 2 and 3, the rotary airflow adjustment structure 200 is adjusted to have two positions by an adjuster: a combustion air tangential entry location and a combustion air radial entry location. As shown in fig. 2, the rotating airflow regulating structure 200 is located at the tangential entry position of the combustion air, and radial diffusion airflow is formed at the combustion nozzle 300, so that short flame is formed and flat flame is formed. As shown in FIG. 3, the rotating flow conditioning structure 200 is located at the combustion air radial entry location and the combustion ports 300 create an axial flow of air that creates a torch shaped long flame. The fuel which is combined with the oxyhydrogen gas for combustion is liquid fuel, can also be designed to be gas fuel, can also be designed to be powdery solid fuel, and can also be designed to be mixed with a plurality of fuels for use; convenient replacement and strong adaptability. The oxyhydrogen gas and fuel mixing and spraying device 100 improves the ignition performance of the fuel by utilizing the catalytic property of the oxyhydrogen gas, improves the burnout rate, reduces carbon black in the flue gas, and reduces the pollution of the combustion to the environment.
Referring to fig. 4, 5 and 6, the oxyhydrogen/fuel mixing and spraying device 100 for the adjustable flame burner in which oxyhydrogen and fuel are combusted in combination according to the present invention includes: a center position oxyhydrogen gas nozzle 110, an atomized fuel nozzle 120, a mobile adjusting device 130, and an outer position oxyhydrogen gas nozzle 140; the oxyhydrogen nozzle 110 at the center, the atomized fuel nozzle 120 and the oxyhydrogen nozzle at the outer side are integrated in a concentric sleeve manner. The center oxyhydrogen nozzle 110 in the embodiment is disposed at the coaxial center of the oxyhydrogen and fuel mixing and spraying device, and penetrates through the atomized fuel nozzle 120. The movement adjusting means 130 can move the hydrogen-oxygen gas nozzle 110 and the compressed air atomized fuel nozzle 120 in the center back and forth by rotating the left and right screw joints 131.
The oxyhydrogen nozzle 110 at the central position includes a central oxyhydrogen gas port 111, a central oxyhydrogen gas channel 112, and a central oxyhydrogen gas nozzle hole 113, the central oxyhydrogen gas port 111, the central oxyhydrogen gas channel 112, and the central oxyhydrogen gas nozzle hole 113 form a closed channel, the central oxyhydrogen gas channel 112 passes through the fuel nozzle 120 for atomizing compressed air, and the central oxyhydrogen gas nozzle hole 113 sprays oxyhydrogen gas, in this embodiment, the central oxyhydrogen gas nozzle hole 113 is made as a single hole.
In the embodiment shown, the atomized fuel nozzle 120 is a compressed air atomized fuel nozzle 120, and includes a fuel port 121, a fuel channel 123, a fuel nozzle 125, a compressed air port 122, a compressed air channel 124, a compressed air nozzle 126, an atomized air seal groove 127, an emulsion mixing chamber 128, and an emulsion mixture nozzle 129. The fuel interface 121, the fuel channel 123 and the fuel nozzle 125 form a fuel channel, and the fuel nozzle 125 is communicated with the emulsification mixing chamber 128. The compressed air interface 122, the compressed air passage 124 and the compressed air nozzle 126 form a compressed air passage, and the compressed air nozzle 126 is communicated with the emulsification mixing chamber 128. The specific process is as follows: fuel enters the emulsification mixing chamber 128 through the fuel interface 121, the fuel channel 123 and the fuel nozzle 125; meanwhile, compressed air enters the emulsifying and mixing chamber 128 through a compressed air interface 122, a compressed air channel 124 and a compressed air nozzle 126, and a seal labyrinth is formed by an atomizing air seal groove 127 at the front end of the compressed air channel. The fuel and the compressed air form an emulsified mixture in the emulsified mixture chamber 128 and are finally ejected through the emulsified mixture ejection hole 129. Alternatively, the emulsified mixed liquid injection hole 129 is formed as a coaxial divergent angle-halved hole. In the embodiment, the atomized fuel nozzle 120 with the internal mixing atomization spraying structure is shown, and the atomized fuel nozzle 120 may also adopt an external mixing atomization spraying structure, which is simpler and is not illustrated. Likewise, the atomized fuel nozzles 120 may be compressed air atomized fuel nozzles or steam atomized fuel nozzles.
The oxyhydrogen nozzle 140 at the outer position comprises an outer oxyhydrogen gas port 141, an outer oxyhydrogen gas channel 142 and outer oxyhydrogen gas nozzles 143, the outer oxyhydrogen gas port 141 and the outer oxyhydrogen gas channel 142 form a closed channel, and the oxyhydrogen gas is ejected through the outer oxyhydrogen gas nozzles 143. Alternatively, the outer hydrogen and oxygen injection holes 143 are formed as coaxial convergent angle equal holes and form a coaxial crossing angle with the emulsion mixture injection hole 129.
Referring to fig. 4, the oxyhydrogen gas and fuel mixing and spraying device of the present embodiment is a cylindrical structure as a whole, the nozzle (central oxyhydrogen gas nozzle 113) of the oxyhydrogen gas nozzle at the central position, the nozzle (outer oxyhydrogen gas nozzle 143) of the oxyhydrogen gas nozzle at the outer position, and the nozzle (emulsion mixture nozzle 129) of the atomized fuel nozzle are located at the front end, and the rear end is provided with a central oxyhydrogen gas port 111, a fuel port 121, a compressed air port 122, and an outer oxyhydrogen gas port 141, in the present embodiment, the central oxyhydrogen gas port 111 is located at the rear end face, and the fuel port 121, the compressed air port 122, and the outer oxyhydrogen gas port 141 are located in the lateral face in sequence. The movement adjusting device 3 is located between the compressed air port 122 and the outside oxyhydrogen gas port 141.
As shown in fig. 5 and 6, the movement adjusting device 130 includes a sealing ring 131, a pressing sleeve 132, left and right screw joints 133, and a guide rod 134. The clamping sleeve 132 is fitted over the atomized fuel nozzle 120. The sealing ring 131 is matched and sealed with the oxyhydrogen nozzle 140 and the compression sleeve 132 at the outer position, one end of the left and right screw joints 133 is connected with the compression sleeve 132, the other end of the left and right screw joints 133 is connected with the atomized fuel nozzle 120, one end of the guide rod 134 is connected with the atomized fuel nozzle 120, and the other end of the guide rod 134 is connected with the oxyhydrogen nozzle 140 at the outer position. Turning the left and right threaded connectors 133 during adjustment may retract or extend the distance between the compressed air atomized fuel nozzle 120 and the outer positioned oxyhydrogen nozzle 140.
The oxyhydrogen gas and fuel mixing and spraying device can ensure that the oxyhydrogen gas and fuels such as fuel, heavy oil and the like are mixed and sprayed in a grading way and then mixed with external combustion air to form a burner, and has the advantages of convenient installation, simple structure and safe and reliable combustion. By the method, the ignition performance of fuels such as fuel, heavy oil and the like can be improved by utilizing the characteristics of oxyhydrogen gas, and the burnout rate is improved. The fuel with high heat value and low price, such as fuel, heavy oil and the like, is fully utilized, the fuel cost is saved, the water vapor generated after the hydrogen and oxygen gas is combusted can catalyze carbon particles, the carbon black in the flue gas can be reduced, the pollutant emission is reduced, and the environmental protection pressure is reduced.
Referring to fig. 7-13, the rotary airflow adjusting structure 200 of the flame adjustable burner for combustion of oxyhydrogen and fuel according to the present invention includes: air duct 210, cyclone, accent spiral ware, air inlet casing 270 and regulator.
The air inlet housing 270 includes an inner cavity, an air inlet and an air outlet, in this embodiment, the air inlet housing 270 is L-shaped, the air inlet is located at one end of the L-shaped, and the air outlet is located at the other end of the L-shaped.
The air duct 210 is located at the air outlet. The air outlet is the front end of the air inlet housing 270. The air duct 210 is an air outlet pipe and is connected with the cyclone front cover 220, and the direct current wind or the rotary wind formed by the rotary air flow adjusting structure is finally sprayed into the furnace through the air duct 210.
The cyclone is located in the internal cavity of the air inlet housing 270 and is connected with the air duct 210. The cyclone of this embodiment includes a cyclone front cover 220, a vane 230 and a cyclone rear cover 240, and the vane 230 is installed between the cyclone front cover 220 and the cyclone rear cover 240. As an example, the blades 230 are single bodies, 6 blades are uniformly distributed and installed in a forward direction, and the airflow is guided by the blades 230 to form a right-handed rotating wind. The cyclone back cover 240 has an inner diameter that is consistent with the inner contour of the vane 230 and is movably fitted with the outer diameter of the sealing section of the tuning coil 250.
Transfer the spiral ware to be located in the internal cavity, transfer the one end of spiral ware with the cyclone is connected, the other end with the rear end of air inlet casing 270 is connected. The rotation adjuster comprises a rotation adjusting pipe 250 and a rear sleeve 280, wherein the rear sleeve 280 is installed at the rear end of the inner cavity, and the tail end of the rear sleeve 280 is closed. The coil adjusting pipe 250 comprises a slotted section and a sealing section, and the slotted section of the coil adjusting pipe 250 is sleeved and connected with the rear sleeve 280; further preferably, the rear sleeve 280 is movably fitted to the inner diameter or the outer diameter of the slotted section of the tuning coil 250. The sealing section of the adjusting coil pipe 250 is connected with the cyclone rear cover 240, and the air duct 210 is connected with the cyclone front cover 220. As an example, the sealing section of the turning pipe 250 is a smooth pipe, and the grooved section of the turning pipe 250 is a pipe with 6 uniformly distributed grooves on the surface. As an example, the slotted equivalent cross-section of the slotted section of the tuning coil 250 is identical to the equivalent cross-section formed by the blades 230, and is shaped as a long slot. The adjuster adjusts the adjusting coil 250 to move back and forth between the rear sleeve 280 and the air duct 210, and in order to limit the displacement distance of the adjusting coil 250, the outer wall of the adjusting coil 250 in this embodiment has a convex structure and is located at the connection between the sealing section and the slotted section of the adjusting coil 250. As shown in fig. 4, when the tuning coil 250 is located at the front end, the protruding structure contacts the cyclone rear cover 240, and restricts the tuning coil 250 from moving forward.
The adjuster is connected with the adjusting coil 250, and the adjuster adjusts the forward and backward movement of the adjusting coil 250 between the rear sleeve 280 and the airway tube 210. Illustratively, the adjuster includes an adjustment structure 290 and a connecting rod 260. The adjusting structure 290 is located at the outer side 7 of the air intake casing and is connected with one end of the connecting rod 260. The other end of the connecting rod 260 is connected with the adjusting coil 250. As an example, in order to facilitate the connection with the connection rod 260, the outer wall of the tuning coil 250 has a protruding ear-shaped connection structure, and the connection rod 260 is connected with the ear-shaped connection structure, which is located at the connection position of the sealing section and the slotted section of the tuning coil 250.
Referring to fig. 12, the adjusting structure 290 is a screw rotation-to-linear pulling type, and is connected to the connecting rod 260 at the outer side of the air inlet housing 270. Specifically, the adjusting structure 290 includes an outer spiral pipe 291 and an inner spiral pipe 292, the front end of the outer spiral pipe 291 is fixed to the outside of the air intake casing 270, the front end of the inner spiral pipe 292 is connected to the rear end of the outer spiral pipe 291 through threads, the connecting rod 260 is sleeved on the outer spiral pipe 291 and the inner spiral pipe 292, the front end of the connecting rod 260 is connected to the adjusting spiral pipe 250, and the rear end of the connecting rod 260 is connected to the rear end of the inner spiral pipe 292. For the convenience of adjustment, the inner spiral tube 292 has a handle 293 at its rear end.
The action of the adjustment mechanism 290 shown in this embodiment is as follows: the connecting rod 260 can be driven to move forwards or backwards by rotating the handle 293 outside the adjusting structure 290, so that the adjusting coil 250 is linked to move forwards and backwards, and the airflow can be converted between the air inlet groove formed by the tangential blades and the straight groove at the rear end of the adjusting coil.
The action process of the rotary airflow adjusting structure in the embodiment is as follows: as shown in fig. 8 and 9, when the turning pipe 250 is located at the rear end, the cyclone is communicated with the air duct 210 to form a cyclone passage. Specifically, when the tuning coil 250 is located at the rear end, the slotted section of the tuning coil 250 is located at the rear sleeve 280, the straight slot of the slotted section is closed by the rear sleeve 280, and the air inlet slot formed by the tangential blades of the cyclone is opened. Thus, the airflow enters from the air inlet of the air inlet housing 270, flows through the air inlet grooves formed by the tangential blades of the cyclone, and finally is discharged from the air duct 210. Referring to fig. 10 and 11, when the coil adjusting pipe is located at the front end, the coil adjusting pipe is communicated with the air duct to form a direct wind channel. Specifically, when the tuning coil 250 is located at the front end, the grooved section of the tuning coil 250 exits the rear sleeve 280, the straight groove of the grooved section is opened, and the sealing section of the tuning coil 250 is located inside the cyclone, so that the air inlet groove formed by the tangential blades of the cyclone is closed. Thus, the air flow enters from the air inlet of the air inlet housing 270, flows through the straight groove of the grooved section of the turning pipe 250, enters the sealing section of the turning pipe 250, and finally is discharged from the air duct 210.
As shown in connection with fig. 13: the airflow rotational flow strength S formed by all the airflow at the tangential blades is greater than 1.3, and when a flared pipe is adopted at the outlet at the front end of the air duct 3, flat airflow can be formed.
In summary, it is shown that: the rotary airflow adjusting structure enables airflow in the air inlet shell to obtain stepless conversion from 100% direct current air to 100% rotary air at the outlet at the front end of the air guide pipe on the premise of not changing the air volume by the forward and backward movement of the adjusting coil pipe, and can obtain a required flame form in burner flame length adjustment. In addition, when the direct current wind and the rotating wind continuously change, the air flow in the furnace is disturbed, so that the fuel can be fully combusted, the heat utilization rate is improved, the uniformity of the furnace temperature is improved, and the heating quality is improved.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the product of the present invention is used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value. The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides an adjustable nozzle of flame that oxyhydrogen and fuel combine burning which characterized in that includes: the device comprises a oxyhydrogen and fuel mixing and spraying device, a rotary airflow adjusting structure and a combustion nozzle;
the rotary airflow adjusting structure comprises an air inlet shell, and a cyclone, a rotary adjuster and an adjuster which are connected in sequence, wherein the cyclone and the rotary adjuster are arranged in the air inlet shell;
the combustion nozzle is arranged at the air outlet of the air inlet shell; the cyclone, the rotation adjusting device and the combustion nozzle are communicated to form an air outlet channel;
the oxyhydrogen gas and fuel mixing and spraying device is arranged in the air outlet channel.
2. The adjustable flame burner of claim 1, wherein the fuel to be combusted in combination with oxyhydrogen gas is liquid fuel, gas fuel, solid fuel or a mixture of multiple fuels.
3. The adjustable flame burner for combustion of oxyhydrogen gas and fuel according to claim 1, wherein the combustion nozzle is in the shape of a bell mouth.
4. A flame adjustable burner for combined combustion of oxyhydrogen and fuel according to claim 1, wherein the rotary gas flow adjusting structure is adjusted by an adjuster to have two positions: a combustion air tangential entry location and a combustion air radial entry location.
5. The adjustable flame burner for combustion of oxyhydrogen and fuel according to claim 4, wherein the rotating airflow adjusting structure is located at the tangential entry position of combustion air, and radial diffusion airflow is formed at the combustion nozzle to form short flame and still flat flame.
6. The adjustable flame burner for combustion of oxyhydrogen gas and fuel according to claim 4, wherein the rotary airflow adjusting structure is located at the radial inlet position of combustion air, and the axial airflow is formed at the combustion nozzle to form a torch-shaped long flame.
7. The adjustable flame burner for combustion of oxyhydrogen and fuel according to claim 1, wherein the air intake housing comprises an internal cavity, an air intake and an air outlet; the air duct is positioned at the air outlet; the rotation adjusting device and the cyclone are positioned in the inner cavity, the rotation adjusting device comprises a rear sleeve and a rotation adjusting pipe, the rear sleeve is installed at the tail end of the inner cavity, the rotation adjusting pipe comprises a groove-opening section and a sealing section, and the groove-opening section of the rotation adjusting pipe is connected with the rear sleeve in a sleeved mode; one end of the cyclone is connected with the sealing section of the coil adjusting pipe, and the other end of the cyclone is connected with the air duct;
the regulator is connected with the adjusting coil pipe, and the adjusting coil pipe moves back and forth between the rear sleeve pipe and the air guide pipe; when the coil adjusting pipe is positioned at the rear end, the cyclone is communicated with the air duct to form a cyclone channel; when the adjusting coil pipe is positioned at the front end, the adjusting coil pipe is communicated with the air duct to form a direct wind channel.
8. The adjustable flame burner for combined combustion of oxyhydrogen and fuel according to claim 7, wherein the cyclone comprises a cyclone front cover, a cyclone rear cover and blades, the blades are installed between the cyclone front cover and the cyclone rear cover, the sealing section of the adjustable coil pipe is connected with the cyclone rear cover, and the air duct is connected with the cyclone front cover.
9. The adjustable flame burner for combined combustion of oxyhydrogen and fuel according to claim 7, wherein the regulator comprises a regulating structure and a connecting rod, the regulating structure is installed outside the air inlet casing, one end of the connecting rod is connected with the regulating structure, and the other end is connected with the regulating coil.
10. The adjustable flame burner with combined combustion of oxyhydrogen and fuel as claimed in claim 1, wherein the oxyhydrogen and fuel mixing and spraying device comprises a central oxyhydrogen nozzle, an atomized fuel nozzle and an outer oxyhydrogen nozzle, and the central oxyhydrogen nozzle, the atomized fuel nozzle and the outer oxyhydrogen nozzle are integrated in a concentric sleeve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020111099139 | 2020-10-16 | ||
| CN202011109913 | 2020-10-16 |
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| CN112344326A true CN112344326A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011231156.2A Pending CN112344326A (en) | 2020-10-16 | 2020-11-06 | Flame adjustable burner for combustion of hydrogen, oxygen and fuel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091061A (en) * | 2021-05-06 | 2021-07-09 | 北京神科博斯热能工程技术有限公司 | High-efficient industry low NOx burner |
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| AU7672001A (en) * | 2000-08-04 | 2002-02-18 | Mitsubishi Hitachi Power Systems, Ltd. | Solid fuel burner and combustion method using solid fuel burner |
| CN103277795A (en) * | 2013-05-27 | 2013-09-04 | 中国科学院广州能源研究所 | Gas burner capable of adjusting gas to be self-recycling |
| CN108916875A (en) * | 2018-09-12 | 2018-11-30 | 南京博纳能源环保科技有限公司 | A kind of low nitrogen combustion combustor |
| CN214468603U (en) * | 2020-10-16 | 2021-10-22 | 上海甘吉环保科技有限公司 | Flame adjustable burner for combustion of hydrogen, oxygen and fuel |
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2020
- 2020-11-06 CN CN202011231156.2A patent/CN112344326A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU7672001A (en) * | 2000-08-04 | 2002-02-18 | Mitsubishi Hitachi Power Systems, Ltd. | Solid fuel burner and combustion method using solid fuel burner |
| CN103277795A (en) * | 2013-05-27 | 2013-09-04 | 中国科学院广州能源研究所 | Gas burner capable of adjusting gas to be self-recycling |
| CN108916875A (en) * | 2018-09-12 | 2018-11-30 | 南京博纳能源环保科技有限公司 | A kind of low nitrogen combustion combustor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113091061A (en) * | 2021-05-06 | 2021-07-09 | 北京神科博斯热能工程技术有限公司 | High-efficient industry low NOx burner |
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