CN102399593B - Burner used for gasifier - Google Patents
Burner used for gasifier Download PDFInfo
- Publication number
- CN102399593B CN102399593B CN201110309944.3A CN201110309944A CN102399593B CN 102399593 B CN102399593 B CN 102399593B CN 201110309944 A CN201110309944 A CN 201110309944A CN 102399593 B CN102399593 B CN 102399593B
- Authority
- CN
- China
- Prior art keywords
- burner
- vaporized chemical
- nozzle
- vapourizing furnace
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
Belonging to the field of gasification equipment, the invention discloses a burner used for a gasifier. The burner comprises: a cooling water jacket or a cooling water coil disposed on a front housing of the burner, a burner front face jacket positioned at the top of the burner, and at least one fuel channel and a gasifying agent channel that is coaxial and directly sleeved with the fuel channel. The burner is characterized in that: at least one cooling pipe is arranged inside the gasifying agent channel, and a coolant inlet of the cooling pipe is located outside the gasifying agent channel, and a coolant outlet of the cooling pipe is positioned inside the gasifying agent channel, the cooling pipe introduces a coolant into the gasifying agent channel from the outside, and the coolant is directly sprayed to the burner head for cooling and finally ejected from an air nozzle. The burner of the invention can effectively prevent high temperature heat radiation and a thermal current from causing high temperature burning loss to the burner head, realize stable burner operation and have effectively extended service life.
Description
Technical field
The invention belongs to gasification installation field ， Te Do and relate to vapourizing furnace field.
Background technology
In air flow bed technique, spray raw material and enter equipment that vapourizing furnace burns burner.Although this equipment is very little with respect to vapourizing furnace, but the importance of this equipment is not second to vapourizing furnace itself, on technological layer, can mention in the same breath with vapourizing furnace, its characteristic directly has influence on the stability of gasifier operation, so the research of burner is subject to extensive attention both domestic and external.
The structure design of burner and burner life-span are closely related, are one of technology of most critical in gasification technology.Therefore, the optimization design of its structure is the gordian technique that extends the burner life-span.
On the other hand, burner is the indispensable equipment of vapourizing furnace, and in operational process, needs regular maintenance or replacing, and the price comparison of burner is expensive, and the price of the external long lifetime burner of introducing is 3 times of domestic common burner price.So burner is larger to the economic influence of gasifier operation.If the work-ing life of burner is more than 1 year, so between twice system maintenance stops without changing or maintenance burner, can realize that vapourizing furnace is stable, long period and oepration at full load, do not need to arrange in addition standby boiler yet.This is basic demand and expectation in industry, significant for vapourizing furnace.
For guaranteeing long-period stable operation and the economic benefit operational energy efficiency of burner, definite says, one should, more than 1 year, be preferably 5～10 years without the maintenance/operation cycle.In practical work, in the Coal Chemical Industry in 20th century, the burner that vapourizing furnace gasifying process is used, is domesticly difficult to reach this index, and the life-span of most of burner, about 1～3 month, can reach about 6 months individually preferably.Although many successful experiences have been summed up aspect maintenance by enterprise, but still fail to break through this boundary.
The enterprise having at present from main vapourizing furnace technology substantially all researches and develops the structure of burner and manufacture method as core technology.
The reason of burner broken is many-sided, mainly contain furnace high-temperature to burner nozzle and burner before the high temperature of face chuck damage and the wearing and tearing of burner nozzle.
Vapourizing furnace is from starting to the whole process of operation, blowing out: during combustion preheater when the hot stage of 600～1000 ℃, gasification reaction the hot stage of 1700 ℃ and while stopping since the high temperature decline stage of 1700 ℃ of high temperature, this three phases all can cause high temperature to damage to burner.
Burner main material is austenitic stainless steel.At present burner nozzle material the most wear-resisting available material has cobalt base alloy and sintering metal etc., but this class material exists in the poor and high temperature of High Temperature Thermal Shock Resistance and easily produces the problems such as oxidation.Therefore, the material of burner nozzle is generally all selected the nickel alloy steel of resistance to high thermal stress at present.
For frayed serious coal water slurry burner, because nickel alloy steel Abrasive Resistance of Stubble-cleaning is than the low several times of the high-abrasive materials such as cobalt base alloy and sintering metal, therefore, coal water slurry burner is used the high temperature material of nickel alloy steel class, is unfavorable for improving its life-span.Solve the wear problem of coal water slurry burner, first need to resolve the baking problem of high temperature to burner nozzle, resolve the cooling down problem to burner nozzle, then could consider to use non-refractory but very wear-resisting material.
For dry pulverized coal burner, owing to cannot observing the impaired process of burner nozzle, therefore, people cannot understand any major cause for burner nozzle damage in high temperature scaling loss and wearing and tearing in for a long time.But by a part of inner-cooled burner of introducing in recent years, created the situation analysis in 1 year above work-ing life, because the feature of inner-cooled burner is heat radiation than very fast and evenly, burner is easy burn-out not, and the life-span is elongated, and the damage that has proved burner is to burn out prior to grinding away.
Therefore, the high temperature that solves the front face chuck of burner nozzle and burner damages problem, has also just become to extend a main aspect in burner life-span.
For addressing the above problem:
Applicant, Dutch Shell Internationale Research Maatschappij B.V, has announced two kinds of burners (being burner) of number of patent application 20010193981.6 and number of patent application 200710193983.5.
Applicant, East China University of Science, has announced number of patent application 200420114032.6, and name is called a kind of preparing synthetic gas burning nozzle by coal powder partial oxidation.
Applicant, space flight Wanyuan, Beijing coal chemical industry engineering company limited, has announced number of patent application 200810246579.4, and name is called a kind of combined nozzle burner.
A common ground of above-mentioned existing patented technology is: the shell that stretches into vapourizing furnace part at burner is partly set to cooling water coil or cooling water jecket, and before burner top is provided with burner face chuck.Utilize water coolant circulation in face chuck before cooling water coil or cooling water jecket and burner, reach the object that burner is cooled, and extend the burner life-span.
Its weak point is:
The position such as face chuck still occurs to be damaged by high temperature and the accident of burner nozzle serious wear often before burner nozzle and burner, and therefore, the life-span of burner is generally 3～6 months, and best situation also can only approach 1 year.
Applicant, Industrial Technology Research Institute, has announced number of patent application 200610172773.3, and name is called; The patent of invention of gasification system burner and vapor feed method thereof.
Its structure is: comprise the inner tube that transmits fuel and elementary gas, be used for transmitting the intervalve of secondary gas with this inner tube neighboring concentric arrangement, and be used for carrying the water coolant outer tube of water coolant with this intervalve neighboring concentric arrangement.At burner outlet front end, be provided with water coolant mist pipe; be connected with this water coolant outer tube; be used for after water coolant atomization, sending in vapourizing furnace; the outlet front end temperature of protecting thus burner can be not too high and be damaged; omit the required steam feed generation device of general gasification system simultaneously, reach energy-conservation and object that simplify the operation.
Its shortcoming is: because one deck water coolant outer tube and the water coolant mist pipe that is connected with this water coolant outer tube have been set up in the neighboring of the intervalve at burner (that is: burner) (that is: vaporized chemical pipe), and diameter and the volume of burner have been increased, and the complicacy of nozzle structure, improved manufacturing cost.In addition the more important thing is, the atomized water ejecting from water coolant mist pipe is positioned on the neighboring of reducing pipe of periphery intervalve and its front end, can not be directly injected to the head of the inner tube (being fuel channel) of burner (being burner), therefore, at burner, to burner oil in vapourizing furnace, do not enter gasification reaction during the stage, inner tube and its head end lip position will inevitably be subject in vapourizing furnace driving warm the high temperature heat radiation of 600～1000 ℃ and the baking of hot gas flow in burner hearth, and while stopping in burner hearth temperature by 1700 ℃ of left and right, start high temperature heat radiation in decline process and the baking of hot gas flow, thereby make inner tube and its head end lip form the gradient temperature difference, germinating crackle expansion form stress crack and heat fatigue cracking etc. and cause high temperature scaling loss, the outlet front end of burner is damaged.
Through inventor herein, repeatedly analyze and study and find in above-mentioned various existing patented technologies, the major cause that burner is damaged by high temperature and the weak point of existence are that above-mentioned all kinds of patents technology does not all directly arrange cooling water jecket at the shower nozzle position of burner fuel channel front end, other device for cooling is not set yet, and cause burner nozzle heat radiation bad, easily by high temperature scaling loss, thereby the burner life-span is caused serious harm.Its concrete damage is mainly caused by following 3 aspects:
(1) when gasification reaction: because burner nozzle is exposed in the high temperature heat radiation and hot gas flow environment of 1700 ℃ of left and right in stove, its cooling can only rely on two aspects of A, B after fuel nozzle feeds intake to carry out;
A, at the fuel channel of fuel nozzle, to spray in stove, throw in fuel process, utilize the low temperature of fuel and the vaporized chemical of vaporized chemical passage output that the heat of high temperature at burner nozzle and its end face lip position is removed, play the cooling effect to burner nozzle.
B, due to fuel nozzle to the fuel density of furnace injection up to 350～400kg/m
3therefore, in burner nozzle exit, formed a coal dust jet layer, this coal dust jet layer is strong has blocked and has intercepted high temperature heat radiation and the high bake of hot gas flow to burner nozzle at 1700 ℃, hearth combustion center, thereby reduced the temperature at burner nozzle position, prevented that burner nozzle is by overheated high temperature scaling loss.
But, in gasification reaction process, because of oxygen amount, coal amount, carbonic acid gas, the variation of steam, and the pressure reduction of vapourizing furnace, the pressure change of seam and oxygen line and fluctuation etc., make in stove in gasification reaction process temperature and pressure all in ground fluctuated unsteady state or ultrahigh-temperature state, when before burner nozzle and burner, face chuck forms high temperature creep condition, owing on the burner nozzle of burner fuel channel front end, cooling water jecket not being set, other refrigerating unit is not set yet, and face chuck produces heat fatigue cracking and high temperature ablation occurs before very easily causing burner nozzle and burner.
For this reason, the solution of prior art is mainly to put forth effort on to adjust flame kernel apart from the distance of fuel nozzle end face, to reduce the temperature of fuel nozzle end face, extends its work-ing life.But owing to being subject to space constraint in burner hearth, can not reach desirable cooling-down effect.Therefore, its fundamental solution still should be found other more directly and more reliable cooling protection way.
(2) in vapourizing furnace driving preheating with in parking these two stages of cooling: because fuel nozzle is not thrown in fuel, and the shower nozzle position that makes fuel nozzle does not exist while feeding intake fuel to the formed A of burner nozzle, during two of B aspect cooling protection, burner nozzle and its end face lip position will inevitably be subject in vapourizing furnace driving warm the high temperature heat radiation of 600～1000 ℃ and the baking of hot gas flow in burner hearth, and while stopping in burner hearth temperature by 1700 ℃ of left and right, start high temperature heat radiation in decline process and the baking of hot gas flow, and make burner nozzle and its end face lip form the gradient temperature difference, germinating crackle expansion form stress crack and heat fatigue cracking etc. burner nozzle and its end face lip position are caused to high temperature scaling loss.
Although the high temperature scaling loss occurring in two stages of above-mentioned driving and parking, can disposablely not damage burner nozzle and its end face lip position completely, can cause certain influence to its life-span.The operation of vapourizing furnace and the operation of the station boiler part that is very different particularly: vapourizing furnace is in the cycle of operation of its plan (the plan cycle of operation is generally 1 year), for various reasons, inevitably have driving repeatedly, the parking of several times, this repeatedly repeatedly start-stop car burner nozzle is caused to the accumulation results of multiple high temp infringement, will inevitably grievous injury burner nozzle and life-span of its end face lip.Even, cause burner nozzle to be burned.
For this reason, most vapourizing furnaces, as Texaco stove is arranged on same position by preheating burner and fuel nozzle, after preheating completes, are replaced by fuel nozzle by preheating burner, to prevent that fuel nozzle is subject to high temperature and damages in combustion preheater process.
Its weak point is: dismounting and change the process of burner, has increased complicacy, the danger of vapourizing furnace operation working procedure, and operator's labour intensity, and increased the required operating time of vapourizing furnace startup procedure because of the different burners of disassembling, assembling and replacing.
(3), the structure of some vapourizing furnaces is igniter burner, preheating burner and fuel nozzle to be arranged on simultaneously to the different positions of vapourizing furnace, or igniter burner and preheating burner and fuel nozzle are combined and are formed combined type burner.
Now, the burner nozzle of fuel nozzle is subject to the baking of 600～1000 ℃ of preheating high temperature of pre-heating stage when vapourizing furnace is driven, and the burner nozzle of fuel nozzle while being subject to the baking of high temperature of furnace high-temperature decline stage 1700 ℃ of left and right when stopping, cooling protection major measure to burner nozzle is: all must carry out oxygen in nitrogen purging exchange system or coal gas when preventing from blasting to burner while utilizing fuel nozzle on vapourizing furnace to prepare to feed intake and when vapourizing furnace stops, the transmission of heat by convection mode that relies on nitrogen that the hot gas flow at burner nozzle position is removed is lowered the temperature.
But when not possessing fuel nozzle and feed intake due to nitrogen, in burner nozzle exit, formed that coal dust fluid layer can block and reduce the high bake that hearth combustion center high temperature heat radiation forms burner nozzle to fuel, and can only be to utilize the transmission of heat by convection mode that nitrogen is removed the hot gas flow at burner nozzle position to lower the temperature, therefore, its cooling-down effect is poor, burner nozzle and lip thereof still can be subjected to 600～1000 ℃ of high temperature heat radiations of pre-heating stage to a great extent, and 1700 ℃ of high bakes that left and right high temperature heat radiation forms burner nozzle while stopping, thereby affect the burner nozzle life-span.Therefore to the fundamental solution of burner nozzle cooling, be, to seek other way of lowering the temperature more comprehensively and more reliably equally.
Summary of the invention
For solving the shortcoming and defect part existing in above-mentioned burner patented technology, the object of this invention is to provide a kind of water coolant by appropriate water coolant or after being atomized and be ejected into burner nozzle position, form turbulent flow water ring, directly be coated on the burner nozzle position that is subject to vapourizing furnace high temperature heat radiation and the baking of high temperature hot gas stream, and be sprayed onto the front face chuck of burner position simultaneously, by water coolant, by high-temperature gasification, taken away the evaporation and heat-exchange of amount of heat and the burner of convective heat exchange on burner nozzle.
1700 ℃ of hot stages while making 1000～1200 ℃ of hot stages when vapourizing furnace combustion preheater of face chuck before burner nozzle and burner, gasification reaction and while stopping since high temperature decline stage of 1700 ℃, in three phases, all can or directly be cooled in different high temperature section simultaneously, thereby the high temperature damage that in solution prior art, burner nozzle position is subject to because not having water coolant directly to cool, and the front face chuck of burner is easily by the problem of high temperature scaling loss.To avoid dew point corrosion and high temperature creep creation of condition, effectively prevent the high temperature scaling loss that before furnace high-temperature thermal radiation and hot gas flow are to burner nozzle and burner, face chuck causes, make the steady running of burner energy, extend its work-ing life.
The object of the invention realizes by following technical proposals:
A kind of burner for vapourizing furnace, comprise: at least one fuel channel and vaporized chemical passage coaxial with this fuel channel and that be directly set in together, when described vaporized chemical channel sleeve is contained in outside fuel channel, on the spray material port of fuel channel exit end, be fixedly connected with burner nozzle, or when described vaporized chemical channel sleeve is contained in fuel channel, on the tuyere of vaporized chemical channel outlet, be fixedly connected with burner nozzle, it is characterized in that: in described vaporized chemical passage, be also provided with at least one cooling tube, the coolant inlet of this cooling tube is positioned at outside vaporized chemical passage, the refrigerant delivery port of cooling tube is positioned at vaporized chemical passage, cooling tube introduces from outside that refrigerant is cold to be entered in vaporized chemical passage and be ejected into burner nozzle position, finally by tuyere, sprayed.
As optimization: described cooling tube is the ring pipe with spray orifice.
As optimization: described cooling tube is straight tube.
As optimization: described cooling tube is spiral element.
The cooling tube of above-mentioned 3 kinds of different structures, respectively has following different advantage, can select according to the specific requirement of vapourizing furnace:
1, ring pipe: its advantage is can fuel channel or vaporized chemical passage and burner nozzle be carried out cooling simultaneously in course of injection.
2, straight tube: its advantage is simple in structure, is convenient to make and install.
3, spiral tube: its advantage is that the refrigerant ejecting is eddy flow shape, is conducive to refrigerant burner nozzle is formed to coated state.
As optimization: described cooling tube refrigerant delivery port is nozzle arrangements.
As optimization: be provided with cooling tube on vaporized chemical passage, the coolant inlet of this cooling tube is positioned at outside vaporized chemical passage, and delivery port is positioned on vaporized chemical passage housing, and is communicated with in vaporized chemical passage.
As optimization: the outside of described vaporized chemical passage or the outer setting of fuel channel have cooling water jecket or cooling water coil.
As optimization: described burner top is provided with face chuck before burner.
As optimization: described refrigerant is water.
Working process is: the hot stage of 600～1000 ℃ when vapourizing furnace combustion preheater, during gasification reaction the hot stage of 1700 ℃ and while stopping since high temperature decline stage of 1700 ℃, can in these three operation phase, all use or use cooling water jecket or the cooling water coil on burner at different hot stages, and when before burner, the recirculated cooling water in face chuck is lowered the temperature to burner, cooling tube is introduced refrigerant and is entered while being ejected into burner nozzle position when the tube wall of vaporized chemical passage being lowered the temperature in vaporized chemical passage from outside, the conical inboard wall that refrigerant is vaporized agent channel outlet position stops formation turbulent flow ring, and be coated on burner nozzle position, and be sprayed onto face chuck position before burner, directly face chuck position before burner nozzle position and burner is lowered the temperature, finally by tuyere ejection, enter in burner hearth and changed into water vapor by furnace high-temperature.
Also can be to vaporized chemical passage input vaporized chemical in input refrigerant, make refrigerant and vaporized chemical mixing jetting to the burner nozzle position of burner fuel channel front end, the conical inboard wall that is vaporized agent channel outlet position stops, and be coated on behind burner nozzle position, be sprayed onto again the front face chuck of burner position, finally spurt in burner hearth and changed into water vapor by furnace high-temperature.
In said process, the agent that is cooled of burner nozzle position under hot environment is coated, cryogen boil-off heat absorption, take away the transmission of heat by convection that the mode of this vaporization heat absorption of amount of heat produces with refrigerant and mathematical models and combine, reach face chuck before burner nozzle and burner is carried out to the directly object of cooling, strengthened the cooling-down effect to burner, thereby avoided burner nozzle to be subject to high temperature, damage, and the front face chuck of burner is easily by the problem of high temperature scaling loss.Make the temperature of the front face chuck of burner nozzle and burner all remain on required OK range, avoid dew point corrosion and high temperature creep creation of condition, effectively prevent the high temperature scaling loss that before furnace high-temperature thermal radiation and hot gas flow are to burner nozzle and burner, face chuck causes, make the steady running of burner energy, extend burner work-ing life.
Because refrigerant injection goes out after burner, can not trickle to inboard wall of burner hearth, but be ejected into the space in burner hearth, by furnace high-temperature, be converted into water vapor.Therefore, can not cause damage to water wall dross layer in stove or burner hearth refractory materials.The water vapor producing both can be as the required vaporized chemical of gasification reaction in burner hearth, also can be before vapourizing furnace feeds intake or after stopping, carry out in nitrogen purging displacement burner and with the nitrogen being blown into, discharge burner hearth when the oxygen in stove or coal gas, can not cause any harm to gasification reaction, can not have any impact to installing rear operation yet.
Beneficial effect of the present invention: the present invention has set up cooling tube in the vaporized chemical passage of burner; by cooling tube by refrigerant injection to burner nozzle position be sprayed onto face chuck position before burner; form the cool-down method that vaporization heat exchange and transmission of heat by convection combine; the high temperature of having avoided in prior art the cooling protection because of burner nozzle no-cooling-water to be subject to damages, and before burner face chuck easily by the problem of high temperature scaling loss.And tool has the following advantages:
1, 600～1000 ℃ of high temperature preheating stages when vapourizing furnace combustion preheater and while stopping since the decline stage of 1700 ℃ of high temperature: the present invention by cooling tube by refrigerant injection to burner nozzle position be sprayed onto burner before face chuck, the cool-down method of heat exchange and convective heat exchange of vaporizing is used with Bian in prior art carries out nitrogen purging before vapourizing furnace feeds intake or while stopping, in displacement burner and stove, oxygen or coal gas are when preventing from blasting, the single transmission of heat by convection cool-down method that relies on nitrogen that burner nozzle position is removed with the hot gas flow of face chuck before burner is compared, there is cooling-down effect and cooling rate better faster.Thereby the temperature that can better make burner nozzle position remains on required suitable temp scope, thereby solved the high temperature decline stage when combustion preheater stage of vapourizing furnace and vapourizing furnace stop of face chuck before existing burner nozzle and burner because of problems such as the high temperature oxidation that toasted by furnace high-temperature thermal radiation and hot gas flow to produce and overtemperature ablations, make the steady running of burner energy, extend burner work-ing life.
2, in 1700 ℃ of hot stages when gasification reaction: by cooling tube, by refrigerant injection, the cooling-down effect that produces of face chuck and burner combine to the cooling-down effect that fuel produces during spray throwing fuel in stove to burner nozzle position and before being sprayed onto burner, and the dual cooling forming, strengthened the effect that cools to face chuck position before burner nozzle and burner, and solved the gasification reaction of prior art after burner feeds intake in the stage, because of oxygen amount, coal amount, carbonic acid gas, the variation of steam and the pressure reduction of vapourizing furnace, the pressure change of seam and oxygen line and fluctuation etc. all cause furnace high-temperature and air pressure to the burner nozzle partial gradient temperature difference in unsteady state fluctuated, the material of face chuck germinating crackle expand to stress crack and heat fatigue cracking that high temperature creep causes before the material at the burner nozzle position causing and burner, and the generation of the problem such as high temperature oxidation and overtemperature ablation.Thereby can more effectively extend burner work-ing life.
3, in the operational process of vapourizing furnace, owing to having adopted, by cooling tube, refrigerant injection is arrived to the cool-down method of burner nozzle, and strengthen and the perfect cooling-down effect to burner nozzle, for adopt cobalt base alloy and sintering metal etc. at present abrasive wear resistance best material replace the nickel-bass alloy material using now and created condition.Thereby can increase substantially the wear resistance of burner nozzle, for the further raising in burner life-span is given security.
4, in the operational process of vapourizing furnace owing to setting up and the perfect heat sink to burner nozzle, igniter burner, preheating burner and fuel nozzle can be arranged on vapourizing furnace simultaneously.Solved existing vapourizing furnace needs different burners to carry out complicated operation that dismounting and replacing cause, dangerous large and operator's the problems such as labour intensity height in driving, gasification reaction and parking three phases, and because the different burners of dismounting have increased, open, the problems such as operating time of docking process, improved the operational efficiency of vapourizing furnace.
5, the cooling device that this patent is set up burner nozzle, simple in structure, only need in the vaporized chemical passage of prior art burner, install cooling tube additional or on the housing of vaporized chemical passage, install the cooling tube with vaporized chemical channel connection additional.And cost is low, both can be used for newly-designed burner, also can be used for the transformation of the old gasifier nozzle of part.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3;
Fig. 4 is the structural representation of the embodiment of the present invention 4;
Face chuck before 1 burner wherein, 2 cooling water coils, 3 vaporized chemical passages, 4 fuel channels, 5 cooling tubes, 6 fuel input apertures, 7 vaporized chemical input apertures, the tuyere of 8 vaporized chemical passages, 9 burner nozzles, 10 cooling water jeckets, 11 nozzles.
Embodiment
Following non-limiting examples is used for illustrating the present invention.
embodiment mono-
See Fig. 1: a kind of burner for vapourizing furnace.This burner comprises that fuel channel 4 and vaporized chemical passage 3 are coaxial and be directly sleeved on the inside of vaporized chemical passage 3, the input terminus of fuel channel 4 is fuel input aperture 6, the exit end of fuel channel 4 is fixedly connected with burner nozzle 9, the input terminus of vaporized chemical passage 3 is vaporized chemical input aperture 7, and the exit end of vaporized chemical passage 3 is that the outer setting of tuyere 8, vaporized chemical passage 3 has cooling water jecket 10 or cooling water coil 2.The present embodiment is the outer setting cooling water coil 2 at vaporized chemical passage 3, face chuck 1 before burner top is provided with burner.
Before burner, there is a through hole at the center of face chuck 1, and burner nozzle 9 and the lip thereof of the tuyere 8 of burner vaporized chemical passage 3 front ends and burner fuel channel 4 front ends is outside exposed, becomes burner vaporized chemical and fuel to the porthole of furnace injection.
On vaporized chemical passage 3, be provided with cooling tube 5, the refrigerant delivery port on this cooling tube 5 is the ring pipe with atomizing spray hole, and is sleeved on the cylindrical of fuel channel 4.The coolant inlet of cooling tube 5 is positioned at the outside of vaporized chemical passage 3 and is connected with plenum system.
At the cooling water coil 2 by burner, and when before burner, the recirculated cooling water in face chuck 1 is lowered the temperature to burner, by the temperature-control device in vapourizing furnace Controlling System, when the Continued that continues when appropriate water coolant is ejected into burner fuel channel 4 to its cooling after by annular cooling conduit 5 atomizations with spout hole is ejected into the burner nozzle 9 of its front end forward, the conical wall that water coolant is vaporized on agent passage 3 front end tuyeres 8 stops, after forming turbulent flow water ring and be coated on 9 pairs of burner nozzles and directly lowering the temperature, be sprayed onto again before burner face chuck 1 position to it to direct cooling, finally spurt in burner hearth and changed into water vapor by furnace high-temperature.
Or the water coolant of cooling tube 5 inputs mixes with the vaporized chemical of inputting from vaporized chemical input aperture 7, the conical wall that is vaporized the tuyere 8 of agent passage 3 stops, and be coated on burner nozzle 9, be ejected into again the front face chuck 1 of burner, finally spurt in burner hearth and changed into by furnace high-temperature the vaporized chemical that contains water vapor.
In said process, water coolant and vaporized chemical passage, and be exposed to the burner nozzle 9 in 1000～1700 ℃ of hot environments in vapourizing furnace and directly contact with face chuck 1 before burner, and form vaporize heat exchange and convective heat exchange, reach the object cooling.Make more stable the remaining in required OK range of temperature of vaporized chemical passage and burner nozzle 9.To avoid dew point corrosion and high temperature creep creation of condition, effectively prevent the high temperature scaling loss that before furnace high-temperature thermal radiation and hot gas flow are to burner nozzle 9 and burner, face chuck 1 causes.Make the steady running of burner energy, extend its work-ing life.
Due to water coolant eject burner nozzle 9 and be sprayed at burner before after face chuck 1, can not trickle to inboard wall of burner hearth, but be ejected into the space in burner hearth, by furnace high-temperature, be converted into water vapor, therefore, can not cause damage to water wall dross layer in stove or burner hearth refractory materials.Required vaporized chemical when the gasifying gas producing both can be retained in burner hearth as combustion reactions, also can be before vapourizing furnace feeds intake or after stopping, when carrying out the interior oxygen of nitrogen purging displacement burner and stove or coal gas, with the nitrogen being blown into, discharge burner hearth, can not cause any harm to gasification reaction, can not have any impact to installing rear operation yet.
embodiment bis-
See Fig. 2: the outer setting of vaporized chemical passage 3 has cooling water jecket 10.Cooling tube 5 is to be connected in parallel by least two straight tubes, is arranged in vaporized chemical passage 3, and wherein, the coolant inlet of cooling tube 5 is positioned at vaporized chemical passage 3 outsides, and the structure of refrigerant delivery port is nozzle 11, and is positioned at vaporized chemical passage 3.When the water coolant by after nozzle 11 atomizations is ejected into burner nozzle 9 position of burner fuel channel 4 and its front end, the conical inboard wall that is vaporized the tuyere 8 of agent passage 3 stops, and formation turbulent flow water ring, be coated on burner nozzle 9 positions, and be sprayed onto the front face chuck of burner 1 position, finally spurt in burner hearth and changed into water vapor by furnace high-temperature.All the other are identical with embodiment mono-.
embodiment tri-
See Fig. 3: the outer setting of vaporized chemical passage 3 has cooling water jecket 10.Cooling tube 5 is spiral elements, is wrapped on fuel channel 4 outer circle walls.The water coolant input aperture of volution cooling tube 5 is positioned at vaporized chemical passage 3 outsides, the structure of refrigerant delivery port is nozzle 11 and is positioned at vaporized chemical passage 3, when the water coolant after being atomized is ejected into burner nozzle 9 position of burner fuel channel 4 front ends, the conical inboard wall that is vaporized the tuyere 8 of agent passage 3 stops, and formation turbulent flow water ring, be coated on burner nozzle position, and be sprayed onto the front face chuck of burner position, finally spurt in burner hearth and changed into water vapor by furnace high-temperature.All the other are identical with embodiment mono-.
embodiment tetra-
See Fig. 4: fuel channel 4 be sleeved on vaporized chemical passage 3 outside, in the outer setting of fuel channel 4, have cooling water coil 2.On the vaporized chemical input aperture 7 of vaporized chemical passage 3, be provided with the cooling tube 5 being connected with vaporized chemical passage 3, this cooling tube 5 also can also connect a cooling tube (also can not connecting as shown in this embodiment) in vaporized chemical passage 3 again in addition.On the tuyere 8 of vaporized chemical passage, be welded with burner nozzle 9, water coolant is entered to vaporized chemical passage 3 by cooling tube 5 and be ejected into after the burner nozzle 9 of vaporized chemical passage 3 front ends, splash, to the front face chuck of burner 1 position, is finally spurted in burner hearth by stove again.
Or the vaporized chemical of the water coolant of inputting from cooling tube 5 and input vaporized chemical passage 3 mixes, after while being ejected into the burner nozzle 9 of vaporized chemical passage 3 front ends, splash, to the front face chuck 1 of burner, is finally spurted in burner hearth and is changed into by furnace high-temperature the vaporized chemical that contains water vapor again.All the other are identical with embodiment mono-.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the burner for vapourizing furnace, comprise: at least one fuel channel and vaporized chemical passage coaxial with this fuel channel and that be directly set in together, when described vaporized chemical channel sleeve is contained in outside fuel channel, on the spray material port of fuel channel exit end, be fixedly connected with burner nozzle, or when described vaporized chemical channel sleeve is contained in fuel channel, on the tuyere of vaporized chemical channel outlet, be fixedly connected with burner nozzle, it is characterized in that: in described vaporized chemical passage, be also provided with at least one cooling tube, the coolant inlet of this cooling tube is positioned at outside vaporized chemical passage, the refrigerant delivery port of cooling tube is positioned at vaporized chemical passage, cooling tube is introduced refrigerant and is entered in vaporized chemical passage and be ejected into burner nozzle position from outside, finally by tuyere, sprayed.
2. a kind of burner for vapourizing furnace according to claim 1, is characterized in that: described cooling tube is the ring pipe with spray orifice.
3. a kind of burner for vapourizing furnace according to claim 1, is characterized in that: described cooling tube is straight tube.
4. a kind of burner for vapourizing furnace according to claim 1, is characterized in that: described cooling tube is spiral element.
5. according to a kind of burner for vapourizing furnace described in claim 1,3 or 4, it is characterized in that: the refrigerant delivery port of described cooling tube is nozzle arrangements.
6. a kind of burner for vapourizing furnace according to claim 1, it is characterized in that: on vaporized chemical passage, be provided with cooling tube, the coolant inlet of this cooling tube is positioned at outside vaporized chemical passage, and delivery port is positioned on vaporized chemical passage housing and is communicated with vaporized chemical passage.
7. the burner for vapourizing furnace as described in arbitrary claim in claim 1,2,3,4 or 6, is characterized in that: the outside of described vaporized chemical passage or the outer setting of fuel channel have cooling water jecket or cooling water coil.
8. the burner for vapourizing furnace as described in arbitrary claim in claim 1,2,3,4 or 6, is characterized in that: described burner top is provided with the front face chuck of burner.
9. the burner for vapourizing furnace according to claim 1, is characterized in that: described refrigerant is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309944.3A CN102399593B (en) | 2011-10-13 | 2011-10-13 | Burner used for gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110309944.3A CN102399593B (en) | 2011-10-13 | 2011-10-13 | Burner used for gasifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102399593A CN102399593A (en) | 2012-04-04 |
| CN102399593B true CN102399593B (en) | 2014-04-02 |
Family
ID=45882255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110309944.3A Active CN102399593B (en) | 2011-10-13 | 2011-10-13 | Burner used for gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102399593B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9080768B2 (en) * | 2012-11-08 | 2015-07-14 | General Electric Company | Gasifier preheater fuel system and methods of assembling same |
| CN102977926B (en) * | 2012-11-28 | 2014-04-16 | 华东理工大学 | Hot oxygen nozzle and application thereof in gasification furnace |
| US20160195268A1 (en) * | 2013-07-25 | 2016-07-07 | Liang Yu | Burner nozzle |
| CN104019460B (en) * | 2014-06-20 | 2016-08-24 | 航天长征化学工程股份有限公司 | A kind of water wall gasifier dross method and apparatus |
| CN104214775A (en) * | 2014-09-12 | 2014-12-17 | 青岛润鑫伟业科贸有限公司 | Steam atomization type coal water slurry furnace |
| CN104593087A (en) * | 2015-01-12 | 2015-05-06 | 南京师范大学 | Three-channel cross-jet gasification nozzle device and gasification method |
| CN105950220A (en) * | 2016-06-28 | 2016-09-21 | 上海齐耀热能工程有限公司 | Adjustable integrated gasification startup burner |
| CN107654998B (en) * | 2016-07-25 | 2019-11-08 | 神华集团有限责任公司 | Burner and gasification furnace |
| CN107091080A (en) * | 2017-06-23 | 2017-08-25 | 新疆国利衡清洁能源科技有限公司 | Nozzle with a nozzle body |
| CN109694751A (en) * | 2017-10-20 | 2019-04-30 | 中国石油化工股份有限公司 | A kind of method of high temperature nozzle and reduction high temperature nozzle corrosion strength |
| CN109810729B (en) * | 2019-03-01 | 2019-10-15 | 中国东方电气集团有限公司 | A kind of integrated water/oil/coke/coal slurry process burner with air film protection |
| CN110577846B (en) * | 2019-09-12 | 2021-02-05 | 杨建平 | Combustion system and burner |
| CN113510016B (en) * | 2021-08-23 | 2024-08-13 | 新疆八一钢铁股份有限公司 | Refractory spraying device for gasification furnace of European smelting furnace |
| CN115121392B (en) * | 2022-07-27 | 2024-03-26 | 惠州市鼎泰欣科技有限公司 | Pulverized coal nozzle of blast furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443228A (en) * | 1982-06-29 | 1984-04-17 | Texaco Inc. | Partial oxidation burner |
| CN1125163A (en) * | 1995-09-07 | 1996-06-26 | 华东理工大学 | Three-way channel combined water coal slurry gasification nozzle with cyclone |
| CN2248187Y (en) * | 1994-06-15 | 1997-02-26 | 中国石油化工总公司 | Double-channel involute combined nozzle |
| CN202265552U (en) * | 2011-10-13 | 2012-06-06 | 东方电气集团东方锅炉股份有限公司 | Burner for gasification furnace |
-
2011
- 2011-10-13 CN CN201110309944.3A patent/CN102399593B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443228A (en) * | 1982-06-29 | 1984-04-17 | Texaco Inc. | Partial oxidation burner |
| CN2248187Y (en) * | 1994-06-15 | 1997-02-26 | 中国石油化工总公司 | Double-channel involute combined nozzle |
| CN1125163A (en) * | 1995-09-07 | 1996-06-26 | 华东理工大学 | Three-way channel combined water coal slurry gasification nozzle with cyclone |
| CN202265552U (en) * | 2011-10-13 | 2012-06-06 | 东方电气集团东方锅炉股份有限公司 | Burner for gasification furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102399593A (en) | 2012-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102399593B (en) | Burner used for gasifier | |
| CN101446413B (en) | Combined type multi-injector burner | |
| CN101858595B (en) | Combustor and method for modifying the same | |
| US9593851B2 (en) | Combustor and method of supplying fuel to the combustor | |
| CN102944027B (en) | Gas combustion chamber for Stirling engine | |
| CN102031152B (en) | Process nozzle and system for gasifying water coal slurry and application thereof | |
| CN103822207B (en) | Variable pressure and variable working condition oil burner | |
| CN102844622B (en) | A kind of Multi-fuel combustion system | |
| CN201327020Y (en) | Combined multi-nozzle burner | |
| CN101392920B (en) | Fire-boosting device for gas furnace | |
| CN104312634B (en) | A kind of combined type Hot oxygen nozzle and its application | |
| CN102575853A (en) | A method of operating a multi-fuel combustion system | |
| CN104807044B (en) | A kind of liquefaction combustion chamber with swirl vane for outlet | |
| CN101975398B (en) | Anti-backfire gas combustor | |
| CN205825114U (en) | There is the cannular combustion chamber of the gas turbine of self-cooling function | |
| CN104373935A (en) | Powdered coal combustor for entrained-flow bed gasification furnace | |
| CN202265552U (en) | Burner for gasification furnace | |
| EP0745428B1 (en) | Flame spraying burner | |
| CN104583677B (en) | Fuel injection system in the catalytic heater and reactor of operating liquid fuel catalytic combustion | |
| CA1051659A (en) | Liquid-fuel atomization and injection device | |
| CN107654998B (en) | Burner and gasification furnace | |
| KR100893266B1 (en) | An oxygen preheating burner supplying two-staged cooling oxygen | |
| CN201964407U (en) | Spray nozzle of burning spray gun | |
| TWI845763B (en) | High-temperature oxygen generator and high-temperature oxygen generation method | |
| SU1758340A1 (en) | Combined multifuel burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |