CN112239679A - Combined gasifier burner - Google Patents
Combined gasifier burner Download PDFInfo
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- CN112239679A CN112239679A CN202011280553.9A CN202011280553A CN112239679A CN 112239679 A CN112239679 A CN 112239679A CN 202011280553 A CN202011280553 A CN 202011280553A CN 112239679 A CN112239679 A CN 112239679A
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- burner
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- fire detection
- gasification furnace
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
Abstract
The invention discloses a combined type gasifier burner, which comprises a burner base, wherein the burner base is vertically arranged at the top of a gasifier, an ignition start-up burner is arranged on the burner base, at least two pulverized coal burners are arranged on the outer side of the ignition start-up burner, and the pulverized coal burners are uniformly distributed on the same virtual circle, so that the complex operation process of switching the ignition start-up burners when the gasifier is started up is omitted. On the one hand, the coal feeding amount of the gasification furnace can be increased, the problem that the coal feeding amount of the gasification furnace is small when a single burner is arranged is solved, the defect of low productivity is overcome, on the other hand, a plurality of nozzles are arranged to spray pulverized coal and oxygen more uniformly into the gasification furnace, the temperature deviation in the hearth of the gasification furnace is favorably eliminated, accurate basis is provided for judging the temperature in the gasification furnace, the influence on process operation is reduced, the influence on the capacity of the gasification device caused by frequent starting and stopping is reduced, the economic loss of an enterprise is reduced, the economic benefit is improved, and meanwhile, the temperature rising and pressure rising speed and the accuracy of remote operation during normal operation of the gasification furnace.
Description
Technical Field
The invention relates to the technical field of gasifier burners, in particular to a combined gasifier burner.
Background
The gasification furnace of a chemical plant is the primary equipment for preparing coal-fired coal into gas mixture required by a chemical process. The working principle of the device is that coal powder or coal slurry and oxygen (steam is required to be added to dry coal powder) are combusted in a gasification furnace to carry out oxidation and reduction gasification reactions, and carbon in coal is oxidized and reduced into raw material gas through incomplete combustion. At high temperature, the ash content in the coal is changed into liquid slag and discharged out of the gasification furnace.
The gasification furnace can not be opened when in start-up or normal operation, and the burners comprise an ignition start-up burner and a pulverized coal burner according to functional purposes; the ignition start-up burner is used for boosting the pressure and raising the temperature of the gasification furnace in the start-up stage of the gasification furnace, and the pulverized coal burner is used for feeding pulverized coal and oxygen required by gasification reaction into the gasification furnace, so that required heat is provided for the gasification reaction, and the uniform distribution of a flow field and a temperature field of the whole combustion chamber is ensured. The gasifier nozzle among the prior art all installs alone, and the burner that will ignite to start working is packed into the top of gasifier in the gasifier stage of starting a car, and the inside of gasifier is heated up and is risen the pressure through the ignition gas of burning, and when the temperature and the pressure in the gasifier all satisfy and drop into buggy and carry out normal gasification reaction, need to change the nozzle operation, get out the burner that starts working of igniting promptly, installs the fine coal nozzle again.
This has the problems that: 1. the nozzle switching needs to be manually operated on a production site, the switching time is half an hour to 1 hour under general conditions, and long time is needed; 2. in the process of feeding pulverized coal and oxygen into the pulverized coal burner which is inverted by the gasification furnace, the pulverized coal and the oxygen can only be fed into the middle position of the inlet of the gasification furnace, and the pulverized coal and the oxygen can only be combusted at the middle position, so that the temperature of the middle position of the upper part of the hearth of the gasification furnace is highest, the temperature near the inner wall is lower, the temperature of the inner wall of the gasification furnace can only be detected by a monitoring chamber as the judgment basis of process operation, certain temperature deviation exists, particularly when the process fluctuates, the real temperature in the gasification furnace can not be accurately judged, the process operation is influenced, and even the yield is seriously influenced; 3. the temperature difference between the middle part and the inner wall of the gasification furnace causes the gasification furnace to have slower temperature rise and pressure rise speeds.
Disclosure of Invention
Aiming at the technical problem, the invention provides the combined gasifier burner, which omits the operation of switching the burners and ensures that the temperature of the inner wall of the gasifier is consistent with that of the middle part of the gasifier.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a modular gasifier nozzle, includes the nozzle base, is provided with the ignition nozzle of opening a job on the nozzle base, and the outside of the ignition nozzle of opening a job is provided with two at least fine coal nozzles, and each fine coal nozzle evenly distributed is on same virtual circle, and the centre of a circle of virtual circle is located the geometric centre of the ignition nozzle of opening a job.
Compared with the prior art, the invention has the following advantages: the burner base is vertically installed at the top of the gasification furnace, the ignition start-up burner is arranged on the burner base, at least two pulverized coal burners are arranged on the outer side of the ignition start-up burner, each pulverized coal burner is uniformly distributed on the same virtual circle, and the circle center of the virtual circle is located on the geometric center of the ignition start-up burner. The ignition start-up burner and each pulverized coal burner are arranged on the burner base at the same time, so that the complex operation process of switching the ignition start-up burners when the gasification furnace is started is omitted. The pulverized coal burners are uniformly distributed on the same virtual circle of the burner base, so that on one hand, the coal feeding amount of the gasification furnace can be increased, the defects of small coal feeding amount and low capacity of the gasification furnace when a single burner is arranged are overcome, on the other hand, the multi-nozzle arrangement can more uniformly spray pulverized coal and oxygen into the gasification furnace, the pulverized coal and the oxygen can be atomized, mixed and combusted better, meanwhile, the temperature of the center and the inner wall of the gasification furnace chamber tends to be consistent, so that the temperature deviation in the gasification furnace chamber is eliminated, an accurate basis is provided for judging the temperature in the gasification furnace, the influence on the process operation is reduced, the long-period, safe and stable operation of the gasification furnace is ensured, the influence on the capacity of a gasification device caused by frequent start and stop is reduced or avoided, the economic loss of an enterprise is reduced, the economic benefit is improved, and the speed of temperature rise and pressure rise and the accuracy of remote operation are improved when the gasification furnace is normally operated.
The method is further optimized as follows: the number of the pulverized coal burners is 3.
By adopting the technical scheme, the 3 pulverized coal burners can equally divide the virtual circle where the burner base is located into 3 equal parts, so that the average combustion is realized in the virtual circle, the temperature in any space of the gasification furnace is consistent with the hearth of the gasification furnace, and the temperature deviation is eliminated.
More preferably: the ignition start-up burner comprises a fire detection channel and an ignition gun, the fire detection channel penetrates through the whole ignition start-up burner, the ignition gun is adjacent and parallel to the fire detection channel, a flame detection device is arranged at the tail of the fire detection channel, and the flame monitoring device monitors that flame is conveyed to a computer of a central control room after being processed. The flame detection channel is used for transmitting a flame video and a flame detection signal to a computer when the ignition start-up burner is ignited, and the flame detection signal is an ultraviolet signal and an infrared signal of the flame.
By adopting the technical scheme, the ignition condition and the flame video signal of the ignition start-up burner are transmitted to the computer of the monitoring room through the fire detection channel in the start-up stage of the gasification furnace, and the most direct and accurate judgment basis is provided for knowing and judging the temperature rise and the pressure rise of the gasification furnace in the gas start-up stage.
More preferably: the burning torch sets up at the right-hand member of ignition passageway, and the burning torch is connected with the dismantlement of ignition passageway. The tail end of the ignition gun is provided with a high-energy igniter, the high-energy igniter is electrically connected with the ignition gun, the high-energy igniter is connected with a power supply, the computer is controlled to control the high-energy igniter to ignite, the spark of the ignition gun ignites the gas needed in the start-up stage, wherein a channel between the ignition gun and the fire detection channel is used for introducing the gas needed in the start-up stage, and the ignition gun is used for igniting the gas.
By adopting the technical scheme, the fuel gas is sent into the ignition channel through the ignition gun and finally reaches the outlet of the high-energy igniter, and the igniter is controlled to ignite the fuel gas through remote control operation on the computer, so that the gasification furnace is ignited, heated and pressurized. The high-energy igniter has good high-temperature and high-pressure resistance, strong anti-pollution capability and is not easy to block or fail to ignite due to pollution.
More preferably: the fire detection channel is provided with any one of optical fiber fire detection, ultraviolet fire detection and infrared fire detection, and the fire detection channel can also be provided with a video camera.
By adopting the technical scheme, the optical fiber fire detection channel transmits the flame video and the flame information through optical fiber fire detection, ultraviolet fire detection and infrared fire detection, avoids signal attenuation caused by long-distance transmission and bending deformation, and has the characteristics of high temperature resistance, strong light transmittance and high stability.
The method is further optimized as follows: the high energy point firearm head outside is provided with support piece, is provided with a plurality of ventholes, a plurality of gas spinning disk on the support piece, and a plurality of ventholes evenly distributed are on support piece's surface, and a plurality of gas spinning disk set up in the support piece outside with the heliciform.
Adopt above-mentioned technical scheme, the gas spinning disk is exported the gas with the form of spiral, takes place the tempering and burns out the ignition nozzle of opening a job when preventing to ignite to start a job stage gas burning.
The method is further optimized as follows: the ignition start-up burner is internally provided with a cooler which comprises a plurality of water jackets, and the plurality of water jackets are coaxially sleeved on the central axis of the ignition start-up burner.
By adopting the technical scheme, the inner part of the ignition start-up burner is cooled through the plurality of coaxial water jackets in the cooler, the ignition start-up burner is protected, and the service life of the ignition start-up burner is prolonged.
The method is further optimized as follows: and each water jacket is internally provided with a curve cooling pipe which is used for reducing the temperature inside the ignition start-up burner.
By adopting the technical scheme, the internal temperature of the ignition start-up burner is reduced, stress deformation caused by thermal stress generated when the temperature is too high is directly avoided, the heat exchange area of the curve cooling pipe is large, and the cooling efficiency is improved.
The method is further optimized as follows: the working load range of the ignition start-up burner is 50-120%.
By adopting the technical scheme, after the start-up stage of the gasification furnace is finished, the ignition start-up burner can be under 50% of working load by reducing the air inflow of the ignition gun, so that the continuous operation of the ignition start-up burner is ensured. When the gasification furnace is in a starting stage, the air inflow of the ignition gun is increased to enable the ignition starting burner to be at 120% of working load, and the heating and pressure increasing rate of the gasification furnace is improved. The working load range is large, so that the ignition start-up burner has better applicability.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic view of the end of the high energy igniter of this embodiment;
FIG. 3 is a schematic diagram of a high energy igniter of this embodiment;
FIG. 4 is a schematic sectional view of the ignition start burner in the present embodiment;
FIG. 5 is a schematic sectional view of a pulverized coal burner according to the present embodiment;
FIG. 6 is a schematic diagram of the control of the high energy igniter in this embodiment;
fig. 7 is a schematic structural view of a base installed in cooperation with the burner of the integrated gasification furnace in this embodiment.
Reference numerals: 1-a burner base; 2-pulverized coal burner; 2A-pulverized coal burner butt joint; 21-oxygen steam line; 22-pulverized coal nitrogen pipeline; 23-inner layer cooling water outlet pipe; 24-inner layer cooling water inlet pipe; 25-outer layer cooling water inlet pipe; 26-outer layer cooling water outlet pipe; 27-a counterflange; 3-igniting and starting up the burner; 3A-butting ignition start-up burners; 30-gas swirl plates; 31-an ignition gun; 32-high energy igniter; 320-a support; 33-cooling water inlet pipe; 34-a cooling water outlet pipe; 35-an oxygen line; 36-pulverized coal pipeline; 37-fire detection channel; 38-an ignition channel; 39-water jacket; 4-a computer; 5-a controller; 6-gasifier inlet joint.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 to 7, wherein the terms of orientation such as up, down, left, right, etc. used in the present application are consistent with the terms of orientation of each figure in the drawings, and all the terms of orientation are used only for the purpose of clarifying the structure of the present application, but not for the purpose of limiting the specific position of the actual product.
The utility model provides a modular gasifier nozzle, as shown in figure 1, includes nozzle base 1, is provided with the ignition on nozzle base 1 and opens the worker nozzle 3, and the outside of the nozzle 3 that opens the worker of igniteing is provided with at least three fine coal nozzle 2, and each fine coal nozzle 2 evenly distributed is on same virtual circle, and the centre of a circle of virtual circle is located the geometric centre of the nozzle 3 that opens the worker of igniteing. The burner base 1 is connected with the inlet of the gasification furnace through a bolt, and the ignition start burner 3 and each pulverized coal burner 2 are introduced into the inlet of the gasification furnace. The gasification furnace is ignited and dried by the ignition start-up burner 3, and pure oxygen and pulverized coal are combusted by the pulverized coal burners 2 to raise the temperature and pressure of the gasification furnace. The number of the pulverized coal burners is 3. The 3 pulverized coal burners can equally divide the virtual circle where the burner base is located into 3 equal parts, so that average combustion is realized in the virtual circle, the temperature in any space of the gasification furnace is consistent with the hearth of the gasification furnace, and temperature deviation is eliminated.
As shown in fig. 7, the burner comprises a gasifier inlet joint 6, and the upper surface of the gasifier inlet joint 6 is connected with the burner base 1 through bolts. Referring to fig. 1 and 7, the pulverized coal burner 1 is connected to the pulverized coal burner butt joint 1A, the ignition start-up burner 3 is connected to the ignition start-up burner butt joint 3A, and finally the combined gasifier burner is installed on the top of the gasifier.
The ignition start-up burner 3 and each pulverized coal burner 2 are arranged on the burner base 1 at the same time, so that the operation procedure of switching burners is omitted. Each 2 evenly distributed of fine coal nozzle are on nozzle base 1 for fine coal and oxygen can be by even sending into, so send into the fine coal and the oxygen of each fine coal nozzle 2 and spray in the gasifier evenly, and burn simultaneously, make the temperature in the gasifier improve with the same speed, also be exactly the temperature unanimous with the inner wall in the middle of the gasifier, the temperature deviation has been eliminated, especially when the technology is undulant unusually, for the temperature in the judgement gasifier provides accurate foundation, reduce the influence to the technology operation, ensure gasifier safe and steady operation, reduce or avoid the influence to the output, reduce the economic loss of enterprise. During normal production, the heating and pressure increasing speed and the remote operation accuracy of the gasifier during normal operation are improved.
Specifically, the ignition start-up burner 3 in this embodiment includes a fire detection channel 37 and an ignition gun 31, as shown in fig. 4 and fig. 2, the fire detection channel 37 penetrates through the entire ignition start-up burner 3, the ignition gun 31 is adjacent to and parallel to the fire detection channel 37, a flame detection device is arranged at the tail of the fire detection channel 37, and the flame monitored by the flame detection device is conveyed to a computer in a central control room after being processed. Here, it should be noted that the flame detection device is a conventional detection device in the art, and is obtained by purchasing a product with a standard specification, and only needs to be installed at the tail of the fire detection channel 37, so that a detailed description of the structure thereof is not needed. The fire detection channel 37 is used for transmitting a flame video and a fire detection signal to the computer when the ignition start-up burner 3 is ignited, wherein the fire detection signal is an ultraviolet signal and an infrared signal of the flame. The fire detection channel 37 is connected to the computer 4 of the monitoring room. The fire detection channel 37 is used for transmitting a flame video of the ignition start-up burner 3 during ignition to the computer 4, so that the ignition condition of the ignition start-up burner 3 and the flame video signal are transmitted to the computer 4 of the monitoring room through the fire detection channel 37 in the start-up stage of the gasification furnace, and the most direct and accurate judgment basis is provided for knowing and judging the temperature rise and the pressure rise of the gasification furnace in the gas start-up stage. Be provided with cooling water inlet pipe 33, cooling water outlet pipe, oxygen pipeline 35 and fine coal pipeline 36 on the outer wall of ignition start-up nozzle 3 respectively, cooling water gets into ignition start-up nozzle 3 from cooling water inlet pipe 33, flows out from the cooling water outlet after ignition start-up nozzle 3 absorbs the heat, will ignite and take away the heat in the start-up nozzle 3, reaches the purpose that reduces ignition start-up nozzle 3 temperature. Preferably, the cooling water inlet pipe 33 and the cooling water outlet pipe in the application are symmetrically distributed on the outer wall of the ignition start burner 3, but the specific positions of the cooling water inlet pipe 33 and the cooling water outlet pipe are not limited by the application, and the cooling water inlet pipe and the cooling water outlet pipe can be designed and installed at will according to the actual needs of the equipment field, and the influence on the working performance of the ignition start burner 3 is not influenced. The oxygen pipeline 35 is used for introducing pure oxygen required by the gasifier, the pulverized coal pipeline 36 is used for introducing pulverized coal, and the pulverized coal and the pure oxygen are combusted at the head (namely the left end) of the ignition start-up burner 3.
Specifically, the cooler is arranged inside the ignition start-up burner 3 in this embodiment, as shown in fig. 4, the cooler includes a plurality of water jackets 39, the plurality of water jackets 39 are coaxially sleeved on the central axis of the ignition start-up burner 3, the inside of the ignition start-up burner 3 is cooled through the plurality of coaxial water jackets 39 in the cooler, the ignition start-up burner 3 is protected, and the service life of the ignition start-up burner 3 is prolonged.
Specifically, all be provided with the curve cooling tube in every water jacket 39 in this embodiment, the curve cooling tube is used for reducing the inside temperature of the nozzle 3 that starts to operate of igniteing, reaches and reduces the inside temperature of the nozzle 3 that starts to operate of igniteing, and the thermal stress that directly produces when avoiding the high temperature and arouse stress deformation, and the heat transfer area of curve cooling tube is big moreover, has improved cooling efficiency.
Specifically, in the present embodiment, the ignition gun 31 is disposed at the right end of the ignition path 38, and as shown in fig. 4, the ignition gun 31 is detachably connected to the ignition path 38. The tail end of the ignition gun 31 is provided with a high-energy igniter 32, the high-energy igniter 32 is electrically connected with the ignition gun 31, specifically, the high-energy igniter 32 is connected with the ignition gun 31 through a cable, so that the high-energy igniter 32 is finally connected with a power supply, the computer is controlled to control the high-energy igniter to ignite, the spark of the ignition gun 31 ignites the gas required in the start-up stage, wherein a channel between the ignition gun 31 and the fire detection channel 37 is used for introducing the gas required in the start-up stage, and the ignition gun 31 is used for igniting the gas.
As shown in fig. 2, the outer wall of the ignition gun 31 is provided with a plurality of gas swirling sheets 30, and each gas swirling sheet 30 is welded to the outer wall of the ignition gun 31 in a spiral manner. As shown in fig. 4 and 6, the ignition gun 31 is detachably connected to the ignition passage 38. The high-energy igniter 32 is arranged at the left end of the ignition channel 38, the high-energy igniter 32 is connected with the computer 4, as shown in fig. 5, specifically, the high-energy igniter 32 is externally connected with the controller 5, the input end of the controller 5 is connected to the output end of the computer 4 of the monitoring room, and the computer 4 is used for controlling the high-energy igniter 32 to ignite the fuel gas required in the start-up stage. The ignition gun 31 is used for introducing gas required in the start-up stage, the high-energy igniter 32 is used for igniting the gas, the gas is sent into the ignition channel 38 through the ignition gun 31 and finally reaches the outlet of the high-energy igniter 32, the igniter is controlled to ignite the gas through remote control operation on the computer 4, automatic ignition and temperature rise and pressure rise of the gasification furnace are achieved, the high-energy igniter 32 has good high-temperature and high-pressure resistance, the anti-pollution capacity is strong, and the situation that blockage or ignition failure is caused due to pollution is not prone to occurring. The automatic ignition process specifically comprises the following steps: the controller 5 is arranged outside the ignition start burner 2, the computer 4 is clicked and ignited through manual operation, the computer 4 outputs an ignition control command and transmits the ignition control command to the controller 5, the controller 5 obtains the ignition control command, the controller 5 converts AC220V alternating current input into the ignition control command into 2500 direct current, the voltage is applied to the high-energy igniter 32 through a high-voltage cable, the high-energy igniter 32 punctures gas in a head cavity under the action of high voltage electricity, the volume of the gas is rapidly expanded in a short time, high-temperature plasma is ejected outwards, and the high-temperature plasma ignites the gas introduced into the gasifier, so that automatic ignition is realized.
The high-energy igniter 32 has good high-temperature and high-pressure resistance, is high in anti-pollution capacity, and is not easy to block or fail to ignite due to pollution. It should be noted that, during ignition, nitrogen and liquefied petroleum gas are introduced into the ignition gun 31, the high-energy igniter 32 ignites the liquefied petroleum gas doped with nitrogen, the nitrogen is added to prevent the liquefied petroleum gas from self-igniting in the ignition channel 38, and the common liquefied petroleum gas is diesel oil which has the characteristic of low price. When the gasifier enters a furnace baking stage after ignition is finished (the stage is a heating and boosting stage before the normal operation of the gasifier, and process preparation work is done for subsequent normal operation), pure oxygen is introduced from the oxygen pipeline 35, pulverized coal is introduced from the pulverized coal pipeline 36, and finally combustion is performed at the left end of the ignition and start-up burner 3 (namely the head of the ignition and start-up burner 3), so that the aim of heating and boosting the gasifier is fulfilled.
Specifically, the 32 head outsides of high-energy point firearm are provided with support piece 320 in this embodiment, as shown in fig. 2 and fig. 4, be provided with a plurality of ventholes, a plurality of gas spinning disk 30 on support piece 320, a plurality of ventholes evenly distributed are on support piece's surface, and a plurality of gas spinning disk 30 set up in the support piece outside with the heliciform, and gas spinning disk 30 exports the gas with the form of spiral, takes place the tempering when preventing to ignite to start stage gas combustion and burns out the nozzle 3 that starts a job of igniting. As shown in fig. 2 and 3, a plurality of ventholes evenly distributed are on the surface of high energy point firearm 32 head, a plurality of gas spinning disks use the geometric center of high energy point firearm 32 to be the heliciform and set up inside high energy point firearm 32 as the centre of a circle, after the ignition, the gas sends out flame, flame is the heliciform blowout, can not take place that partial flame is not direct blowout takes place the tempering and burns out the head of high energy point firearm 32, this structure has constituted porous whirl jet structure, effectively stop the tempering in normal operating range, ensure the safety of the 3 heads of the nozzle of starting operation of igniting. As shown in fig. 2, 3 and 4, the high-energy igniter 32 is parallel to the fire detection channel 37 and is closely arranged on the outer wall of the fire detection channel 37, the length of the head of the high-energy igniter 32 is 200mm, the stainless steel pipe with the diameter of 13mm is added with a ceramic lining structure, the rest body is a stainless steel wire with the diameter of 5mm, and the high-energy igniter 32 is separated from the fire detection channel 37 by a layer of insulator coated outside the stainless steel wire.
Specifically, in this embodiment, the workload range of the ignition start-up burner 3 is 50% to 120%, please refer to fig. 4, after the start-up stage of the gasifier is finished, the ignition start-up burner 3 can be at 50% of the workload by reducing the air input into the ignition gun 31, so as to ensure that the ignition start-up burner 3 continuously operates. When the gasification furnace is in a starting stage, the ignition starting burner 3 is under 120% of working load by increasing the air inflow into the ignition gun 31, so that the temperature rise and pressure rise rate of the gasification furnace is increased. The working load range is large, so that the ignition start-up burner 3 has better applicability.
Specifically, fire detection channel 37 installation optic fibre fire in this embodiment is examined, is examined in the ultraviolet fire, infrared fire and is examined any one, and the video camera still can be installed to the fire detection channel. As shown in fig. 4, the optical fiber fire detection channel 37 transmits flame video and flame information through optical fiber fire detection, ultraviolet fire detection and infrared fire detection, avoids signal attenuation caused by long-distance transmission and bending deformation, and has the characteristics of high temperature resistance, strong light transmittance and high stability. Experimental and practical experience proves that: the ultraviolet intensity of the optical fiber fire detection is 4 times higher than that of the original fire detection, so that the optical fiber fire detection has the characteristics of high temperature resistance, strong light transmittance and high stability. The inner diameter of the optical fiber fire detection channel is 22mm, an optical fiber is arranged in the optical fiber fire detection channel 37, and the optical fiber is arranged from the tail of the optical fiber fire detection channel 37 to the head of the optical fiber fire detection channel (namely the left end of the optical fiber fire detection channel) by 5-10 mm. The optical fiber is divided into two parts at the tail part (namely the right end of the optical fiber fire detection channel), one part is used for transmitting flame video signals, the other part is used for transmitting flame ultraviolet signals, the video signals and the flame ultraviolet signals are transmitted to a computer 4 of a monitoring room, and the video signals and the flame ultraviolet signals are displayed on a display screen in two circular points and flame intensity numerical values after conversion.
The optical fiber of the fire detection channel 37 mainly collects visible optical fiber, which is extravehicular optical fiber during combustion in the gasifier, and infrared optical fiber may be added to satisfy various structures in the fire detection channel 37, such as an ultra-long fire detection channel 37, a curved fire detection channel 37, and the like.
As shown in fig. 5, the pulverized coal burner 2 includes an oxygen steam pipe 21, a pulverized coal nitrogen pipe 22, a plurality of water jackets 39 and a docking flange 27, the docking flange 27 is sleeved on the outer wall of the pulverized coal burner 2, the docking flange 27 is used for being connected with the burner base 1, the pulverized coal burner 2 is installed on the burner base 1, and then the installation on the inlet of the gasification furnace is finally realized through the burner base 1. The oxygen steam pipeline 21 and the pulverized coal nitrogen pipeline 22 are independent from each other, a water jacket 39 is clamped between the oxygen steam pipeline 21 and the pulverized coal nitrogen pipeline 22, and the water jacket 39 is clamped between the pulverized coal water jacket 39 and the inner wall of the pulverized coal burner 2. Water jacket 39 separates oxygen steam conduit 21 and fine coal nitrogen gas pipeline 22, separates fine coal nitrogen gas pipeline 22 and 2 inner walls of fine coal nozzle moreover, is the inside mutually independent structure of formation of fine coal nozzle 2, realizes can dismantling alone, makes things convenient for maintenance. The water jacket 39 here is identical in structure and function to the water jacket 39 of the ignition burner 3. Still be provided with inlayer cooling water inlet tube 24 on pulverized coal burner 2's the outer wall respectively, inlayer cooling water outlet pipe 23, outer cooling water inlet tube 25 and outer cooling water department water pipe 26, it is preferred, inlayer cooling water inlet tube 24 in this application, inlayer cooling water outlet pipe 23 symmetric distribution is on pulverized coal burner 2's outer wall, outer cooling water inlet tube 25 and outer cooling water department water pipe 26 symmetric distribution are on pulverized coal burner 2's outer wall, in fact, do not advance inner cooling water inlet tube 24, inlayer cooling water outlet pipe 23, outer cooling water inlet tube 25 and outer cooling water department water pipe 26 specifically set up the position and prescribe a limit to, as long as satisfy actual technology demand and accord with the field installation requirement can. The cooling water gets into fine coal nozzle 2 from inlayer cooling water inlet tube 24, outer cooling water inlet tube 25 respectively with lower temperature, and after the inside oxygen, the fine coal with the high temperature of nozzle carry out the heat exchange, the inside temperature of nozzle reduces, and the cooling water temperature rises and then flows out from inlayer cooling water outlet pipe, outer cooling water department water pipe 26 respectively, reaches the purpose that reduces fine coal nozzle 2 temperature. In normal production, the temperature of the pulverized coal burner 2 is reduced, so that the important functions of prolonging the service life of the pulverized coal burner 2 and reducing the production cost are achieved.
The head of the pulverized coal burner 2 is also poured with a layer of refractory material, so that the effect of effectively protecting the head of the pulverized coal burner is achieved. The service life of the pulverized coal burner 2 is prolonged.
In summary, the ignition start-up burner 3 and each pulverized coal burner 2 are arranged on the burner base 1 at the same time, so that the operation procedure of switching burners is omitted. The pulverized coal burners 2 are uniformly distributed on the same virtual circle of the burner base 1, so that pulverized coal and oxygen fed into the pulverized coal burners 2 are uniformly sprayed into the gasification furnace and are combusted simultaneously, the temperature of the middle and the inner wall of the gasification furnace is consistent, temperature deviation is eliminated, especially when the process fluctuates abnormally, accurate basis is provided for judging the temperature in the gasification furnace, the influence on process operation is reduced, the gasification furnace is ensured to run safely and stably, the influence on yield is reduced or avoided, and the economic loss of enterprises is reduced. During normal production, the heating and pressure increasing speed and the remote operation accuracy of the gasifier during normal operation are improved, the technical problems in the prior art are effectively solved, and the operation and operation stability of the gasifier is obviously improved.
The present embodiment is only for explaining the invention, and it is not limited to the invention, and those skilled in the art can make modifications to the embodiment as necessary without inventive contribution after reading the present specification, but all of them are protected by the patent law within the scope of the present invention.
Claims (9)
1. The utility model provides a modular gasifier nozzle which characterized in that: including the nozzle base, be provided with the nozzle of opening a job of igniteing on the nozzle base, the outside of the nozzle of opening a job of igniteing is provided with two at least fine coal nozzles, each fine coal nozzle evenly distributed is on same virtual circle, the centre of a circle of virtual circle is located the geometric centre of the nozzle of opening a job of igniteing is last.
2. The combined gasifier burner of claim 1, wherein: the number of the pulverized coal burners is 3.
3. The combined gasifier burner of claim 1, wherein: the ignition start-up burner comprises a fire detection channel and an ignition gun, wherein the fire detection channel penetrates through the whole ignition start-up burner, the ignition gun is adjacent to and parallel to the fire detection channel, a flame detection device is arranged at the tail part of the fire detection channel, and the flame monitoring device monitors that flame is processed and then is conveyed to a computer of a central control room; the flame detection channel is used for transmitting a flame video and a flame detection signal to the computer when the ignition start-up burner is ignited, and the flame detection signal is an ultraviolet signal and an infrared signal of the flame.
4. The combined gasifier burner of claim 3, wherein: the ignition gun is arranged at the right end of the ignition channel and is detachably connected with the ignition channel; the tail end of the ignition gun is provided with a high-energy igniter, the high-energy igniter is electrically connected with the ignition gun, the high-energy igniter is connected with a power supply, the computer is controlled to control the high-energy igniter to ignite, the sparks of the ignition gun ignite the gas required in the start-up stage, a channel between the ignition gun and the fire detection channel is used for introducing the gas required in the start-up stage, and the ignition gun is used for igniting the gas.
5. The combined gasifier burner of claim 2, wherein: the fire detection channel is provided with any one of optical fiber fire detection, ultraviolet fire detection and infrared fire detection, and the fire detection channel can also be provided with a video camera.
6. The combined gasifier burner of claim 2, wherein: the high-energy igniter is characterized in that a supporting piece is arranged on the outer side of the head of the high-energy igniter, a plurality of air outlet holes and a plurality of gas swirl plates are arranged on the supporting piece, the air outlet holes are evenly distributed on the surface of the supporting piece, and the gas swirl plates are arranged on the outer side of the supporting piece in a spiral manner.
7. The combined gasifier burner of claim 2, wherein: the ignition start-up burner is internally provided with a cooler, the cooler comprises a plurality of water jackets, and the water jackets are coaxially sleeved on the central axis of the ignition start-up burner.
8. The combined gasifier burner of claim 6, wherein: and each water jacket is internally provided with a curve cooling pipe which is used for reducing the temperature inside the ignition start-up burner.
9. The combined gasifier burner of claim 1, wherein: the working load range of the ignition start-up burner is 50-120%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280553.9A CN112239679A (en) | 2020-11-16 | 2020-11-16 | Combined gasifier burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280553.9A CN112239679A (en) | 2020-11-16 | 2020-11-16 | Combined gasifier burner |
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| Publication Number | Publication Date |
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| CN112239679A true CN112239679A (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011280553.9A Pending CN112239679A (en) | 2020-11-16 | 2020-11-16 | Combined gasifier burner |
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| CN (1) | CN112239679A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154393A (en) * | 2021-04-07 | 2021-07-23 | 北京航化节能环保技术有限公司 | Integrated gun for start-up burner, use method and industrial furnace |
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2020
- 2020-11-16 CN CN202011280553.9A patent/CN112239679A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154393A (en) * | 2021-04-07 | 2021-07-23 | 北京航化节能环保技术有限公司 | Integrated gun for start-up burner, use method and industrial furnace |
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