CN111288443A - Torch premixing combined burner - Google Patents
Torch premixing combined burner Download PDFInfo
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- CN111288443A CN111288443A CN202010229892.8A CN202010229892A CN111288443A CN 111288443 A CN111288443 A CN 111288443A CN 202010229892 A CN202010229892 A CN 202010229892A CN 111288443 A CN111288443 A CN 111288443A
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- 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
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- 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
- F23D14/38—Torches, e.g. for brazing or heating
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- 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
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A flare premix co-burner comprising: the bottom of the mixing cylinder is provided with an air inlet; an external exhaust gas system for providing exhaust gas to the outside of the mixing cylinder; the external steam system is used for providing steam to a gas spraying part of the external exhaust gas and gas system; an internal exhaust gas system for providing exhaust gas to the interior of the mixing barrel; the internal central steam system is used for providing steam to a gas spraying part of the internal exhaust gas and gas system; and the swirling flow steam system is used for providing swirling flow steam to the interior of the mixing barrel. The torch premixing combined burner has the technical characteristics of saving energy, reducing the running cost, reducing the emission of harmful combustion products such as carbon dioxide and oxynitride and the like.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment of chemical devices, and particularly relates to a torch premixing combined burner.
Background
In petrochemical, coal and other chemical devices, a large amount of harmful combustible waste gas is generated in the production process, and the gas is discharged into the atmosphere after being combusted and treated by an open type torch device or a closed type ground torch device; because the existing burners of the open type torch and the closed type ground torch burn incompletely in the burning process, a large amount of black smoke is covered in the burning process, a large amount of carbon dioxide and other harmful gases are generated, and the environment is seriously polluted; the problems of large occupied area, high investment cost, high operation cost and the like are caused by long combustion flame and poor flame rigidity, which cause burning out of the interior of a combustion tower, flame roof fall, steam consumption, small combustor treatment capacity and the like.
Therefore, a new burner is desired, which can effectively solve the above problems.
Disclosure of Invention
The invention aims to provide a torch premixing combined burner which has the characteristics of short burning flame, good rigidity and low investment cost.
In order to achieve the above object, the present invention provides a flare premix co-combustor comprising:
the bottom of the mixing cylinder is provided with an air inlet;
an external exhaust gas system for providing exhaust gas to the exterior of the mixing barrel;
an external steam system for providing steam to a gas emitting location of the external exhaust gas combustion system;
an internal exhaust gas combustion system for providing exhaust gas combustion gas to the interior of the mixing barrel;
an internal central steam system for providing steam to a gas emitting location of the internal exhaust gas combustion system;
a swirling steam system for providing swirling steam to the interior of the mixing barrel.
Preferably, the internal exhaust gas combustion system comprises:
one end of the waste gas and gas pipe penetrates through the side wall of the mixing cylinder body to the inside of the mixing cylinder body, the other end of the waste gas and gas pipe is provided with a waste gas discharge inlet, and the waste gas discharge inlet is communicated with a first waste gas and gas pipeline;
the inner double gas ring pipe is positioned at the inner lower part of the mixing cylinder body and is communicated with one end of the waste gas and gas pipe;
and the internal gas nozzles are uniformly distributed on the internal double-gas ring pipe along the circumferential direction.
Preferably, the external exhaust gas combustion system comprises:
the outer gas ring pipe is sleeved at the top of the mixing cylinder body and communicated with a second exhaust gas pipeline;
the axial direction of the outer gas branch pipes is perpendicular to the axial direction of the mixing barrel, the outer gas branch pipes are uniformly and circumferentially communicated with the outer gas ring pipe, and a plurality of outer premixed gas burners are arranged on each outer gas branch pipe.
Preferably, outside premix gas nozzle includes gas nozzle and premix nozzle shell, premix nozzle shell cover is located on the gas nozzle, the gas nozzle communicate in outer gas branch pipe, premix nozzle shell top is equipped with the mixed gas export, the lateral wall of premix nozzle shell is equipped with a plurality of nozzle side air inlets, and the diapire is equipped with a plurality of nozzle air bottom air inlets.
Preferably, the external steam system comprises:
the external steam ring pipe is sleeved on the mixing cylinder body, an external steam inlet is formed in the external steam ring pipe, and the external steam inlet is communicated with the first steam pipeline;
the axial direction of the external steam branch pipes is arranged along the radial direction of the mixing cylinder body, the external steam branch pipes are uniformly communicated with the external steam ring pipe along the circumferential direction, and each external steam branch pipe is provided with a plurality of external steam spray holes.
Preferably, the internal central steam system comprises:
one end of the steam pipe penetrates through the air inlet to the inner lower part of the mixing cylinder body, the other end of the steam pipe is provided with a steam inlet, and the steam inlet is communicated with a third steam pipeline;
the steam pipe is characterized by comprising an inner trident steam pipe, wherein the inner trident steam pipe is arranged at one end of the steam pipe, a liquid nozzle is arranged at the center of the steam pipe, and a plurality of inner steam spray holes are formed in the temple trident steam pipe.
Preferably, the internal steam system further comprises a liquid high-pressure interface detachably communicated with the liquid nozzle and communicated with the high-pressure liquid pipeline.
Preferably, the cyclonic steam system comprises:
the rotational flow steam ring pipe is sleeved on the lower section of the mixing cylinder body, a rotational flow steam inlet is formed in the bottom of the rotational flow steam ring pipe, and the rotational flow steam inlet is communicated with a second steam pipeline;
the plurality of swirling steam nozzles are uniformly distributed on the swirling steam ring pipe;
a plurality of venturi mixing pipes, every the one end of venturi mixing pipe is passed the lateral wall to inside of mixing barrel, and every the other end of venturi mixing pipe communicate in one whirl steam nozzle.
Preferably, a first included angle is formed between the axial direction of each venturi mixing tube and the axial direction of the mixing cylinder body, and the first included angle is 10-85 degrees; and a second included angle is formed between the axial direction of each Venturi mixing pipe and the horizontal direction and is 10-85 degrees.
Preferably, a swirl plate is arranged between every two adjacent venturi mixing pipes and connected to the inner wall of the mixing cylinder;
the vortex sheet and the axial of mixing the barrel form the third contained angle, the third contained angle is 10 ~ 85, and forms the fourth contained angle with the horizontal direction, the fourth contained angle is 10 ~ 85.
The invention relates to a torch premixing combined burner, which has the beneficial effects that: according to the method, when the discharged waste gas/liquid with different components is treated by combustion, according to the discharged waste gas with different components/different pressures, the discharged waste gas with different components is subjected to combustion treatment by adopting different burners, and steam is controlled for the discharged waste gas with different components through a pipeline; the combustible gas with high heat value is easy to burn and control, and the like, and the gas with low heat value and difficult to control is discharged along with burning; high-pressure exhaust waste gas or steam is adopted, and a large amount of air is sucked into the gas ejected at high speed to participate in combustion; a nozzle of the Venturi mixing pipe is used for injecting a large amount of air into discharged waste gas to accelerate combustion, so that the length of flame is reduced, and the rigidity of the flame is increased; the use of other fuels for mixing and burning during harmful gas burning is reduced; the combustible liquid is atomized and sprayed into the mixing cavity through the nozzle, and atomized combustible liquid drops are instantly ignited at high temperature through high temperature generated during combustion of combustible gas which is easy to control, and are mixed and combusted in a high-temperature area. The method has the technical characteristics of saving energy, reducing the running cost, reducing the emission of harmful combustion products such as carbon dioxide and oxynitride, and the like.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 illustrates a schematic structural view of a flare premix co-combustor of an exemplary embodiment of the present invention;
FIG. 2 illustrates a top view of a flare premix co-combustor of an exemplary embodiment of the present invention;
FIG. 3 shows a schematic structural diagram of a portion of a flare premix combo burner except for an external steam system of an exemplary embodiment of the present invention
FIG. 4 is a top view of a portion of a flare premix combo combustor with the exception of an external steam system of an exemplary embodiment of the present invention;
FIG. 5 illustrates a schematic diagram of the configuration of an external premix gas burner in a flare premix combo burner of an exemplary embodiment of the present invention;
description of reference numerals:
1 liquid high pressure interface, 2 air inlet, 3 whirl steam inlet, 4 whirl steam ring pipe, 5 whirl steam nozzle, 6 venturi mixing tube, 7 exhaust gas inlets, 8 steam inlet, 9 mixing cylinder, 10 outer gas ring pipe, 11 outer gas branch pipe, 12 outer premixed gas burner, 13 outer exhaust gas system, 14 inner double gas ring pipes, 15 inner gas nozzle, 16 liquid nozzle, 17 inner three-fork steam pipe, 18 inner steam jet hole, 19 outer steam system, 20 outer steam ring pipe, 21 outer steam branch pipe, 22 outer steam jet hole, 23 nozzle bottom air inlet, 24 premixed burner shell, 25 nozzle side air inlet, 26 gas nozzle, 27 mixed gas outlet, 28 swirl plate.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In order to solve the problems in the prior art, the invention provides a torch premixing combined burner, which comprises:
the bottom of the mixing cylinder is provided with an air inlet;
an external exhaust gas system for providing exhaust gas to the outside of the mixing cylinder;
the external steam system is used for providing steam to a gas spraying part of the external exhaust gas and gas system;
an internal exhaust gas system for providing exhaust gas to the interior of the mixing barrel;
the internal central steam system is used for providing steam to a gas spraying part of the internal exhaust gas and gas system;
and the swirling flow steam system is used for providing swirling flow steam to the interior of the mixing barrel.
The invention relates to a torch premixing combined burner, which is used for carrying out combustion treatment by adopting different burners according to different components/different pressures of discharged waste gas when the discharged waste gas/liquid with different components is subjected to combustion treatment, and controlling steam on the discharged waste gas with different components through a pipeline; the combustible gas with high heat value is easy to burn and control, and the like, and the gas with low heat value and difficult to control is discharged along with burning; high-pressure exhaust waste gas or steam is adopted, and a large amount of air is sucked into the gas ejected at high speed to participate in combustion; a venturi mixing pipe is adopted to inject a large amount of air into discharged waste gas to accelerate combustion, so that the length of flame is reduced, and the rigidity of the flame is increased; the use of other fuels for mixing and burning during harmful gas burning is reduced; the combustible liquid is atomized and sprayed into the mixing cavity through the nozzle, and atomized combustible liquid drops are instantly ignited at high temperature through high temperature generated during combustion of combustible gas which is easy to control, and are mixed and combusted in a high-temperature area. The method has the technical characteristics of saving energy, reducing the running cost, reducing the emission of harmful combustion products such as carbon dioxide and oxynitride, and the like.
Preferably, the internal exhaust gas combustion system comprises:
one end of the waste gas and gas pipe penetrates through the side wall of the mixing cylinder body to the inside of the mixing cylinder body, the other end of the waste gas and gas pipe is provided with a waste gas discharge inlet, the waste gas discharge inlet is communicated with a first waste gas and gas discharge pipeline, and the first waste gas and gas discharge pipeline is provided with a control valve;
the inner double-gas ring pipe is positioned at the inner lower part of the mixing cylinder body and is communicated with one end of the waste gas and gas pipe;
a plurality of inside gas nozzles, a plurality of inside gas nozzles along the circumference equipartition on interior two gas ring pipes.
The production discharge waste gas, can the gas, get into first discharge waste gas pipeline to get into waste gas pipe and interior two gas ring pipes in proper order through discharging the waste gas entry, spout to mixing the barrel inside via inside gas nozzle, with at the inside burning of mixing the barrel.
Preferably, the height of the inner double gas ring pipe inside the mixing cylinder is not more than half of the height of the mixing cylinder.
Preferably, the external exhaust gas combustion system comprises:
the outer gas ring pipe is sleeved at the top of the mixing cylinder body and communicated with a second exhaust gas pipeline, and the second exhaust gas pipeline is provided with a control valve;
the axial direction of a plurality of outer gas branch pipes is perpendicular to the axial direction of the mixing barrel, the plurality of outer gas branch pipes are uniformly communicated with the outer gas ring pipe along the circumferential direction, and a plurality of outer premixed gas burners are arranged on each outer gas branch pipe.
Combustible gas enters the second exhaust waste gas pipeline, sequentially enters the outer gas ring pipe and the outer gas branch pipe, and is sprayed upwards through the outer premixed gas burner to be combusted above the mixing cylinder.
Preferably, the external premixed gas burner is a premixed gas burner.
Preferably, outside gas nozzle in advance includes gas nozzle and mixes the nozzle shell in advance, mixes the nozzle shell cover in advance and locates on the gas nozzle, and the gas nozzle communicates in outer gas branch pipe, mixes the nozzle shell top in advance and is equipped with mixed gas export, mixes the lateral wall of nozzle shell in advance and is equipped with a plurality of nozzle side air inlets, and the diapire is equipped with a plurality of nozzle bottom air inlets. The external premixed gas burner sucks air through the air inlet on the side surface of the nozzle and the air inlet on the bottom of the nozzle, and the air and the combustible gas are mixed and sprayed out for combustion, so that the combustion is more sufficient.
Preferably, the external steam system comprises:
the external steam ring pipe is sleeved on the mixing cylinder body and is provided with an external steam inlet which is communicated with the first steam pipeline;
the axial direction of the external steam branch pipes is arranged along the radial direction of the mixing cylinder body, the external steam branch pipes are uniformly distributed and communicated with the external steam ring pipe along the circumferential direction, and each external steam branch pipe is provided with a plurality of external steam spray holes;
the steam of the first steam pipeline enters the outer steam ring pipe from the outer steam inlet and is sprayed out from the outer steam spray holes through the plurality of outer steam branch pipes. The external steam inlet is communicated with the first steam pipeline to introduce steam. When steam is sprayed, a large amount of air is sucked to participate in the exhaust gas sprayed by the external premixed gas burner, namely, the combustible gas is combusted, and black smoke is avoided. The steam is sprayed upwards from the external steam spray holes, and the air flows from top to bottom and from the periphery along the steam spraying direction, which is consistent with the upward spraying direction of the combustible gas. The external steam system is used for promoting the exhaust gas of the heavy component containing carbon, namely the combustion of fuel gas, increasing upward steam, improving air quantity and avoiding the generation of black smoke during combustion.
Preferably, the first steam pipeline is provided with a control valve to control the speed of the steam.
Preferably, the air inlet is a conical or cylindrical revolution wall and is fixedly connected with the mixing cylinder by welding.
Preferably, the internal central steam system comprises:
one end of the steam pipe penetrates through the air inlet to the lower part in the mixing cylinder body, the other end of the steam pipe is provided with a steam inlet, and the steam inlet is communicated with a third steam pipeline;
the steam pipe is characterized by comprising an inner three-fork steam pipe, wherein the inner three-fork steam pipe is arranged at one end of the steam pipe, a liquid nozzle is arranged at the center of the inner three-fork steam pipe, and a plurality of inner steam spray holes are formed in the inner three-fork steam pipe.
The third steam pipeline is used for introducing high-pressure steam or discharged high-pressure waste gas, the high-pressure steam or the discharged high-pressure waste gas sequentially enters the steam pipe and the internal three-fork steam pipe through the steam inlet and is sprayed out through the internal steam spray holes, and when the high-pressure steam or the discharged high-pressure waste gas is sprayed out from the internal steam spray holes, a large amount of air is sucked into the air inlet through improving the air circulation pressure to enter the mixing cylinder body to participate in the combustion of combustible gas sprayed out from the internal gas nozzle.
Preferably, the third steam pipeline is provided with a control valve to control the flow rate of the high-pressure steam or the high-pressure exhaust gas and control the amount of the sucked air.
Preferably, the internal central vapor system further includes a liquid high pressure interface in removable communication with the liquid nozzle and in communication with the high pressure liquid conduit. The high-pressure liquid pipeline is used for introducing combustible or non-combustible high-pressure liquid, the high-pressure liquid enters the liquid high-pressure connector and is sprayed out by the liquid nozzle, a large amount of air is sucked from an air inlet at the bottom of the mixing cylinder body and enters the mixing cylinder body, and the high-pressure liquid is ignited by the internal waste gas discharge gas system to promote the combustion of combustible gas; liquid nozzles are known in the art, which spray droplets of combustible or non-combustible liquid upwards by mechanical pressure atomization.
Preferably, the cyclonic steam system comprises:
the rotational flow steam ring pipe is sleeved on the lower section of the mixing cylinder body, a rotational flow steam inlet is formed in the bottom of the rotational flow steam ring pipe, and the rotational flow steam inlet is communicated with the second steam pipeline;
the plurality of swirling steam nozzles are uniformly distributed on the swirling steam ring pipe;
and one end of each venturi mixing pipe penetrates through the side wall of the mixing cylinder body to the inside, and the other end of each venturi mixing pipe is communicated with one swirl steam nozzle.
The venturi mixing tube is prior art, sucks air through the gas flow, and its structure is not described in detail again.
Preferably, a first included angle is formed between the axial direction of each Venturi mixing pipe and the axial direction of the mixing cylinder body, and the first included angle is 10-85 degrees; the axial direction and the horizontal direction of each Venturi mixing pipe form a second included angle which is 10-85 degrees. The steam introduced from the rotational flow steam inlet enters the Venturi mixing pipe through the rotational flow steam nozzle, and after being sprayed out at a high speed, a large amount of air on the side surface is sucked into the mixing cylinder to form rotational flow, so that the air quantity is increased, the combustion is accelerated, the flame length is reduced, and the flame rigidity is increased. And a control valve is arranged on the second steam pipeline to control the rotational flow speed.
Preferably, a rotational flow sheet is arranged between every two adjacent venturi mixing pipes and fixedly connected to the inner wall of the mixing cylinder;
the rotational flow sheet and the axial direction of the mixing cylinder body form a third included angle which is 10-85 degrees, and a fourth included angle which is 10-85 degrees is formed between the rotational flow sheet and the horizontal direction. The swirl plates are used for enhancing the swirl strength of the internal mixed gas.
Example 1
As shown in fig. 1 to 5, the present invention provides a flare premix co-burner, comprising:
the bottom of the mixing cylinder 9 is provided with an air inlet 2;
an external exhaust gas combustion system 13, the external exhaust gas combustion system 13 being configured to provide exhaust gas combustion gas to the outside of the mixing cylinder 9;
an external steam system 19, wherein the external steam system 19 is used for providing steam to a gas spraying position of the external exhaust gas combustion system 13;
an internal exhaust gas system for supplying exhaust gas to the inside of the mixing cylinder 9;
the internal central steam system is used for providing steam to a gas spraying part of the internal exhaust gas and gas system;
and the swirling steam system is used for providing swirling steam to the interior of the mixing barrel 9.
In the present embodiment, the internal exhaust gas combustion system includes:
one end of the waste gas and gas pipe penetrates through the side wall of the mixing cylinder 9 to the inside of the mixing cylinder, the other end of the waste gas and gas pipe is provided with a waste gas discharge inlet 7, the waste gas discharge inlet 7 is communicated with a first waste gas and gas discharge pipeline, and the first waste gas and gas discharge pipeline is provided with a control valve;
the inner double-gas ring pipe 14 is positioned at the inner lower part of the mixing cylinder body 9 and is communicated with one end of the waste gas and gas pipe;
a plurality of inside gas nozzles 15, a plurality of inside gas nozzles 15 along the circumference equipartition on interior two gas ring pipes 14.
The production discharge waste gas, can the gas, get into first discharge waste gas pipeline to get into waste gas pipe and interior double-fuel gas ring pipe 14 in proper order through discharging waste gas entry 7, spout inside to mixing barrel 9 via inside gas nozzle 15, with at the inside burning of mixing barrel 9.
In this embodiment, the inner dual gas collar 14 is no more than one-half the height of the mixing cylinder 9 inside the mixing cylinder 9.
In the present embodiment, the external exhaust gas combustion system 15 includes:
the outer gas ring pipe 10 is sleeved at the top of the mixing cylinder body 9, the outer gas ring pipe 10 is communicated with a second exhaust gas pipeline, and the second exhaust gas pipeline is provided with a control valve;
a plurality of outer gas branch pipes 11, the axial of a plurality of outer gas branch pipes 11 is perpendicular to the axial of mixing barrel 9, a plurality of outer gas branch pipes 11 communicate in outer gas ring pipe 10 along circumference equipartition ground, is equipped with a plurality of outside gas nozzle 12 that mixes in advance on every outer gas branch pipe 11.
Combustible gas enters the second exhaust gas pipeline, sequentially enters the outer gas ring pipe 10 and the outer gas branch pipe 11, and is sprayed upwards through the outer premixed gas burner 12 to be combusted above the mixing cylinder 9.
In the present embodiment, the external premixed gas burner 12 is a premixed gas burner. The external premixed gas burner 12 comprises a gas nozzle 26 and a premixed burner shell 24, the premixed burner shell 24 covers the gas nozzle 26, the gas nozzle 26 is communicated with the outer gas branch pipe 11, a mixed gas outlet 27 is formed in the top of the premixed burner shell 24, a plurality of nozzle side air inlets 25 are formed in the side wall of the premixed burner shell 24, and a plurality of nozzle bottom air inlets 23 are formed in the bottom wall of the premixed burner shell.
In the present embodiment, the external steam system 17 includes:
the external steam ring pipe 20 is sleeved on the mixing cylinder 9, an external steam inlet is formed in the external steam ring pipe 20, and the external steam inlet is communicated with the first steam pipeline;
the plurality of external steam branch pipes 21 are axially arranged along the radial direction of the mixing cylinder 9, the plurality of external steam branch pipes 21 are uniformly communicated with the external steam circular pipe 20 along the circumferential direction, and each external steam branch pipe 21 is provided with a plurality of external steam spray holes 22;
steam from the first steam line enters the outer steam loop 20 through an outer steam inlet and exits through a plurality of outer steam branch pipes 21 through outer steam nozzles 22. The external steam inlet is communicated with the first steam pipeline to introduce steam. When the steam is sprayed out, a large amount of air is sucked to participate in the combustion of the combustible gas sprayed out by the external premixed gas burner 12.
The first steam pipeline is provided with a control valve. The air inlet 2 is a cylindrical revolving wall and is fixedly connected with the mixing cylinder 9 by welding.
In this embodiment, the internal central steam system includes:
one end of the steam pipe penetrates through the air inlet 2 to the inner lower part of the mixing cylinder 9, the other end of the steam pipe is provided with a steam inlet 8, and the steam inlet 8 is communicated with a third steam pipeline;
the steam pipe is characterized in that the inner three-way steam pipe 17 is arranged at one end of the steam pipe, a liquid nozzle 16 is arranged at the center of the inner three-way steam pipe 17, and a plurality of inner steam spray holes 18 are formed in the inner three-way steam pipe 17.
The third steam pipeline is used for introducing high-pressure steam, the high-pressure steam enters the steam pipe and the internal three-fork steam pipe 17 in sequence through the steam inlet 8, is sprayed out through the internal steam spray holes 18 and participates in the combustion of combustible gas sprayed out from the internal gas spray nozzle 15. The third steam pipeline is provided with a control valve.
In this embodiment, the internal central vapor system further includes a liquid high pressure port 1, and the liquid high pressure port 1 is detachably connected to the liquid nozzle 16 and connected to the high pressure liquid pipe. The high-pressure liquid pipeline is used for introducing combustible liquid, the high-pressure liquid enters the liquid high-pressure connector 1 and is sprayed out by the liquid nozzle 16, a large amount of air is sucked from the air inlet 2 at the bottom of the mixing cylinder 9 and enters the mixing cylinder 9, and the high-pressure liquid is ignited by the internal waste gas discharge gas system to promote the combustion of combustible gas.
In this embodiment, the cyclonic steam system comprises:
the rotational flow steam ring pipe 4 is sleeved at the lower section of the mixing cylinder 9, a rotational flow steam inlet 3 is arranged at the bottom of the rotational flow steam ring pipe 4, and the rotational flow steam inlet 3 is communicated with a second steam pipeline;
the plurality of swirling steam nozzles 5 are uniformly distributed on the swirling steam ring pipe 4;
and one end of each venturi mixing pipe 6 penetrates through the side wall of the mixing cylinder 9 to the inside, and the other end of each venturi mixing pipe 6 is communicated with one swirl steam nozzle 5.
In this embodiment, the axial direction of each venturi mixing tube 6 and the axial direction of the mixing cylinder 9 form a first included angle, and the first included angle is 55 °; the axial direction of each venturi mixing tube 6 forms a second angle with the horizontal direction, the second angle being 55 °.
In this embodiment, a swirl plate 28 is disposed between every two adjacent venturi mixing tubes 6, and the swirl plate 28 is fixedly connected to the inner wall of the mixing cylinder 9; the rotational flow sheet 28 and the axial of mixing barrel 9 form a third included angle, the third included angle is 60 degrees, and forms a fourth included angle with the horizontal direction, and the fourth included angle is 60 degrees.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A flare premix co-burner, comprising:
the air inlet (2) is formed in the bottom of the mixing cylinder (9);
an external exhaust gas combustion system (13), the external exhaust gas combustion system (13) being configured to provide exhaust gas combustion to the exterior of the mixing drum (9);
an external steam system (19), said external steam system (19) being adapted to provide steam to a gas jet of said external exhaust gas combustion system (13);
an internal exhaust gas system for providing exhaust gas to the interior of the mixing drum (9);
an internal central steam system for providing steam to a gas emitting location of the internal exhaust gas combustion system;
a swirling steam system for providing swirling steam to the interior of the mixing drum (9).
2. A flare premix combi-burner as in claim 1, wherein the internal discharge exhaust gas combustion system comprises:
one end of the waste gas and gas pipe penetrates through the side wall of the mixing cylinder body (9) to the inside of the mixing cylinder body, the other end of the waste gas and gas pipe is provided with a waste gas discharge inlet (7), and the waste gas discharge inlet (7) is communicated with a first waste gas discharge pipeline;
the inner double gas ring pipe (14) is positioned at the inner lower part of the mixing cylinder body (9), and is communicated with one end of the waste gas and gas pipe;
a plurality of internal gas nozzles (15), said plurality of internal gas nozzles (15) are evenly distributed on said inner double gas ring pipe (14) along the circumferential direction.
3. A flare premix combi-burner as in claim 1 of claim 2, wherein the external discharge exhaust gas combustion system (13) comprises:
the outer gas ring pipe (10) is sleeved at the top of the mixing cylinder body (9), and the outer gas ring pipe (10) is communicated with a second exhaust gas pipeline;
the gas mixing device comprises a plurality of outer gas branch pipes (11), wherein the axial directions of the outer gas branch pipes (11) are perpendicular to the axial direction of a mixing barrel (9), the outer gas branch pipes (11) are uniformly communicated with an outer gas ring pipe (10) along the circumferential direction, and a plurality of outer premixed gas burners (12) are arranged on each outer gas branch pipe (11).
4. A flare premixing joint burner according to claim 1, characterized in that the external premixing gas burner (12) comprises a gas nozzle (26) and a premixing burner housing (24), the premixing burner housing (24) is covered on the gas nozzle (26), the gas nozzle (26) is communicated with the external gas branch pipe (11), a mixed gas outlet (27) is arranged at the top of the premixing burner housing (24), a plurality of nozzle side air inlets (25) are arranged on the side wall of the premixing burner housing (24), and a plurality of nozzle bottom air inlets (23) are arranged on the bottom wall.
5. A torch premix combi-burner according to claim 1, characterized in that the external steam system (19) comprises:
the external steam loop pipe (20), the external steam loop pipe (20) is sleeved on the mixing cylinder body (9), an external steam inlet is arranged on the external steam loop pipe (20), and the external steam inlet is communicated with the first steam pipeline;
the steam mixing device comprises a plurality of external steam branch pipes (21), wherein the axial directions of the external steam branch pipes (21) are arranged along the radial direction of the mixing cylinder body (9), the external steam branch pipes (21) are uniformly communicated with the external steam ring pipe (20) along the circumferential direction, and a plurality of external steam spray holes (22) are formed in each external steam branch pipe (21).
6. The flare premix combi burner of claim 1, wherein the internal central steam system comprises:
one end of the steam pipe penetrates through the air inlet (2) to the inner lower part of the mixing cylinder (9), the other end of the steam pipe is provided with a steam inlet (8), and the steam inlet (8) is communicated with a third steam pipeline;
the steam pipe is characterized by comprising an internal three-fork steam pipe (17), wherein the internal three-fork steam pipe (17) is arranged at one end of the steam pipe, a liquid nozzle (16) is arranged at the center of the internal three-fork steam pipe (17), and a plurality of inner steam spray holes (18) are formed in the internal three-fork steam pipe (17).
7. A torch premix combi-burner according to claim 1, characterized in that the internal steam system further comprises a liquid high pressure interface (1), the liquid high pressure interface (1) being detachably connected to the liquid nozzle (16) and to a high pressure liquid conduit.
8. A flare premix combi-burner as in claim 1 of claim 1, wherein the swirl steam system comprises:
the cyclone steam ring pipe (4) is sleeved on the lower section of the mixing cylinder (9), a cyclone steam inlet (3) is formed in the bottom of the cyclone steam ring pipe (4), and the cyclone steam inlet (3) is communicated with a second steam pipeline;
the plurality of swirling steam nozzles (5), the plurality of swirling steam nozzles (5) are uniformly distributed on the swirling steam ring pipe (4);
a plurality of venturi mixing pipes (6), each venturi mixing pipe (6) one end is passed the lateral wall of mixing barrel (9) to inside, and each venturi mixing pipe (6) the other end communicate in one whirl steam nozzle (5).
9. A flare premix combined burner according to claim 8, characterized in that the axial direction of each venturi mixing tube (6) forms a first angle with the axial direction of the mixing barrel (9), the first angle being 10-85 °; and a second included angle is formed between the axial direction of each Venturi mixing pipe (6) and the horizontal direction and is 10-85 degrees.
10. The flare premix compound burner as in claim 8, wherein a swirl plate (28) is provided between each adjacent two of the venturi mixing pipes (6), and the swirl plates (28) are connected to the inner wall of the mixing cylinder (9);
the rotational flow sheet (28) and the axial direction of the mixing cylinder body (9) form a third included angle which is 10-85 degrees and forms a fourth included angle with the horizontal direction, and the fourth included angle is 10-85 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229892.8A CN111288443A (en) | 2020-03-27 | 2020-03-27 | Torch premixing combined burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229892.8A CN111288443A (en) | 2020-03-27 | 2020-03-27 | Torch premixing combined burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111288443A true CN111288443A (en) | 2020-06-16 |
Family
ID=71027911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010229892.8A Pending CN111288443A (en) | 2020-03-27 | 2020-03-27 | Torch premixing combined burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111288443A (en) |
-
2020
- 2020-03-27 CN CN202010229892.8A patent/CN111288443A/en active Pending
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