CN106051747A - Heat accumulation type oxygen-enriched combustion method and device - Google Patents
Heat accumulation type oxygen-enriched combustion method and device Download PDFInfo
- Publication number
- CN106051747A CN106051747A CN201610602787.8A CN201610602787A CN106051747A CN 106051747 A CN106051747 A CN 106051747A CN 201610602787 A CN201610602787 A CN 201610602787A CN 106051747 A CN106051747 A CN 106051747A
- Authority
- CN
- China
- Prior art keywords
- burner
- gas
- combustion
- oxygen
- air
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
- F23C7/06—Disposition of air supply not passing through burner for heating the incoming air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
- F23D2209/30—Purging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
Abstract
The invention relates to the technical field of oxygen-enriched combustion, in particular to a heat accumulation type oxygen-enriched combustion method. The method comprises the steps that firstly, a nozzle serves as a combustion nozzle and is inflated with fuel gas, oxygen and air, the fuel gas, the oxygen and the air are mixed at the position of a nozzle sprayer and combusted in a hearth, meanwhile, another nozzle serves as an exhaust nozzle, a fuel gas guide pipe of the exhaust nozzle is inflated with nitrogen, smoke in the hearth enters a heat accumulation chamber of the exhaust nozzle to exchange heat with a heat accumulator in the heat accumulation chamber, and then the smoke is exhausted out of the exhaust nozzle; secondly, after a commutation cycle, commutation operation is executed, the opposite process of the first step is executed in the two nozzles, the combustion nozzle in the previous commutation cycle becomes the exhaust nozzle, and the exhaust nozzle in the previous commutation cycle becomes the combustion nozzle; and thirdly, the first step and the second step are repeated. The fuel gas guide pipe of the exhaust nozzle is inflated with the nitrogen, high-temperature smoke can be prevented from entering the fuel gas guide pipe, the fuel gas guide pipe is cooled, and therefore the fuel gas guide pipe can be protected against burnout caused by high-temperature smoke. The invention further relates to a heat accumulation type oxygen-enriched combustion device.
Description
Technical field
The present invention relates to oxygen-enriched combustion technology field, particularly relate to a kind of thermal storage type oxygen-enriched combusting method and device thereof.
Background technology
Current domestic and international wide variety of high-new power-saving technology has HTAC and oxygen-enriched combustion technology, wherein
HTAC is that high temperature air burns with combustion gas mixing；Oxygen-enriched combustion technology is combustion gas with combustion-supporting gas at oxygen concentration
More than mixed combustion under the working condition of 21%.But all there is shortcoming, simple heat accumulating type high-temperature air burning in both technology
What technology was pursued is recovery waste heat to greatest extent from flue gas, is embodied in the preheating temperature as far as possible improving combustion-supporting gas,
Reduce exhaust gas temperature the most as far as possible, and exist tight in terms of improving the exhaust smoke level of air-breathing characteristic quality and minimizing unit of fuel
Weight defect；Simple oxygen-enriched combusting major defect is high fume temperature, NOxThe problems such as concentration of emission is big, gas conduct pipe easily blocking.
The patent of publication number CN101280916 discloses a kind of thermal storage type oxygen-enriched combusting method, and it is a heat accumulating type richness
By the one in combustion gas and oxygen or natural gas, liquefied gas, coke-stove gas and diesel oil at the oxygen mix shower nozzle of oxygen burner
It is sufficiently mixed, and sprays into the mixed gas conduit being arranged on regenerator center；The above-mentioned gas being adequately mixed be preheating to
The combustion air of 900～1000 DEG C mixes at burner tip again, and burns.
This patent also discloses a kind of thermal storage type oxygen-enriched combustion apparatus realizing said method, it include point about arrange
Two thermal storage type oxygen-enriched combusting devices, as it is shown in figure 1, each burner includes regenerator 01, the storage being arranged in regenerator 01
Hot body 02 and be positioned in heat storage 02 mixed gas conduit 03, around heat storage 02, be surrounded by thermal insulation layer 04, in regenerator
One end wall of 01 connects burner tip 05, has a through hole and mixed gas conduit at the center of burner tip 05
The pipe end of 03 is connected and has multiple through hole being connected with regenerator 01 along its circumferencial direction；Another of regenerator 01
Individual end wall is connected with an end wall of air chamber 06, air chamber 06 sidewall on it equipped with the pipeline of three-way valve and one its
On be provided with air intake and be connected with the four-way change-over valve of waste gas outlet, another end wall of air chamber 06 and oxygen mix shower nozzle
07 is connected, oxygen mix shower nozzle 07 be respectively provided with thereon equipped with on the gas pipeline 09 of valve 08 and its equipped with valve 010
The end of oxygen channel 011, oxygen mix shower nozzle 07 is coaxially oppositely arranged with mixed gas conduit 03.
Thermal storage type oxygen-enriched combusting method disclosed in above-mentioned patent uses fuel and oxygen or natural gas, liquefied gas, coke-oven coal
One in gas and diesel oil is sufficiently mixed in advance, by be arranged on regenerator center mixed gas conduit spray, and with through store
Combustion air mixed combustion at burner tip of hot cell preheating so that in burner hearth easy generation office at burner tip
Portion's high temperature, thus cause mixed gas conduit scaling loss, shorten its service life.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is to solve existing thermal storage type oxygen-enriched combustion apparatus to be easily generated inside burner hearth
Localized hyperthermia and the problem that causes the easy scaling loss of mixed gas conduit.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of thermal storage type oxygen-enriched combusting method, comprise the steps:
S1: one burner, as burning burner, is passed through combustion gas, oxygen and air in burning burner, and combustion gas, oxygen and air are in burning
Mixing at the burner nozzle of burner, and burn in burner hearth, meanwhile, another burner, as smoke evacuation burner, burns to smoke evacuation
Being passed through nitrogen in the gas conduct pipe of mouth, the flue gas produced that burns in burner hearth enters in the regenerator of smoke evacuation burner, flue gas and accumulation of heat
Heat storage heat exchange in room, the heat of flue gas is absorbed by heat storage, and temperature reduces and forms waste gas, and discharges smoke evacuation burner；S2: warp
Spend a commutation cycle, perform switch operation, two burners carry out the inverse process of step S1, the combustion of previous commutation cycle
Burning burner and become burner of discharging fume, the smoke evacuation burner of previous commutation cycle then becomes burning burner；S3: repeat step S1-step S2.
According to the present invention, in step sl, being passed through combustion gas, oxygen and air in burning burner is: to burning burner
It is passed through combustion gas in gas conduct pipe, and in its regenerator, is passed through the mixed gas of air and oxygen；Mixed gas is through accumulation of heat
Absorbing the heat of the regenerator interior heat storage arranged during room and be preheated, combustion gas and the mixed gas being preheated are at burning burner
Mix at burner nozzle, and burn in burner hearth.
According to the present invention, before performing step S1, perform following steps: S01: to be located on burner hearth open stove burner in logical
Enter combustion gas and combustion air, light and open stove burner, make combustion gas and combustion air mix at the burner nozzle opening stove burner, and
Burner hearth burns；S02: be filled with air and combustion gas in burning burner, stop when the temperature in burner hearth rises to preset temperature
Combustion gas and combustion air it is passed through in opening stove burner.
Present invention also offers a kind of thermal storage type oxygen-enriched combustion apparatus, including: burner hearth；Being located at the burner of burner hearth, burner has
Two, each burner includes regenerator and is located at the regenerator burner nozzle near one end of burner hearth, is provided with accumulation of heat in regenerator
Body and gas conduct pipe, burner nozzle is provided with the first through hole and around the second through hole of the first through hole, one end of gas conduct pipe and the
One through hole connection, the other end of gas conduct pipe and the first fuel gas supply pipeline and the connection of nitrogen service, the second through hole and storage
Hot cell connects；And the air feed conduit that connects away from one end of burner hearth with burner and oxygen feeding pipe road.
According to the present invention, regenerator is provided with the oxidant service communicated therewith, two oxidations away from one end of burner hearth
Agent service is selectively connected with air feed conduit by a four-way change-over valve, and oxygen feeding pipe road is located at air and is supplied
To on pipeline and communicate therewith, four-way change-over valve is also associated with flue.
According to the present invention, burner hearth is additionally provided with and opens stove burner, open stove burner and be provided with the second fuel gas supply pipeline and combustion-supporting
Air feed conduit.
According to the present invention, the second fuel gas supply pipeline and combustion air service are equipped with regulation valve.
According to the present invention, the first fuel gas supply pipeline, oxidant service, air feed conduit, oxygen feeding pipe road
And on nitrogen service, it is equipped with regulation valve.
According to the present invention, the first fuel gas supply pipeline, air feed conduit, oxygen feeding pipe road and nitrogen service
On be equipped with stop valve.
(3) beneficial effect
The technique scheme of the present invention has the advantage that
(1) thermal storage type oxygen-enriched combusting method of the present invention, after the duty of burner is shifted to smoke evacuation by burning, to this burning
It is passed through nitrogen in the gas conduct pipe of mouth, it is carried out nitrogen purging, burn in combustion gas therein all can be blown into burner hearth,
Thus ensure the safety of whole combustion process；When the duty of burner is for smoke evacuation, then continue to be passed through nitrogen wherein, by
This can stop high-temperature flue gas to enter in the gas conduct pipe of smoke evacuation burner, and gas conduct pipe plays the effect of cooling, thus protects
Gas conduct pipe is not by high-temperature flue gas scaling loss.
(2) after the thermal storage type oxygen-enriched combusting method of the present invention, oxygen and air are sufficiently mixed in advance pre-through regenerator again
Heat, is passed through combustion gas in gas conduct pipe, combustion gas mixes at burner nozzle with the oxygen being preheated and air gas mixture, and at stove
Thorax burns, thus can avoid at burner nozzle, producing higher localized hyperthermia inside burner hearth, prevent combustion gas further
Conduit is burnt, and extends its service life.
(3) thermal storage type oxygen-enriched combustion apparatus of the present invention, is provided with the nitrogen service that the gas conduct pipe with burner connects,
After the duty of burner is shifted to smoke evacuation by burning, nitrogen can be passed through in the gas conduct pipe of this burner, it is carried out nitrogen
Purging, to burn in combustion gas therein is all blown into burner hearth, thus ensures the safety of whole combustion process；At burner
Duty for smoke evacuation time, the most sustainable nitrogen that is passed through wherein, thus can stop high-temperature flue gas enter smoke evacuation burner combustion
In airway, and gas conduct pipe is played the effect of cooling, thus protect gas conduct pipe not by high-temperature flue gas scaling loss.
(4) thermal storage type oxygen-enriched combustion apparatus of the present invention, its first fuel gas supply pipeline connects with gas conduct pipe, and air supplies
Connected with regenerator by oxidant service with oxygen feeding pipe road to pipeline, combustion gas can be made to be passed through burning by gas conduct pipe
In mouth shower nozzle, air and oxygen are passed through regenerator preheating by oxidant service, then with combustion gas at burner after being sufficiently mixed
Mix at shower nozzle, and at stove chamber inner combustion.Thus can avoid at burner, producing higher localized hyperthermia inside burner hearth, enter
One step prevents gas conduct pipe to be burnt, and extends its service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the thermal storage type oxygen-enriched combusting device of the thermal storage type oxygen-enriched combustion apparatus in background technology；
Fig. 2 is the structural representation of the thermal storage type oxygen-enriched combustion apparatus of the embodiment of the present invention.
In figure: 01: regenerator；02: heat storage；03: mixed gas conduit；04: thermal insulation layer；05: burner tip；06:
Air chamber；07: oxygen mix shower nozzle；08,010: valve；09: gas pipeline；011: oxygen channel；1: burner hearth；Burn at 21: the first
Mouth；22: the second burners；3,3 ＇: the first fuel gas supply pipeline；4,4 ＇: oxidant service；5: air feed conduit；6: oxygen
Gas service；7,7 ＇: nitrogen service；8: four-way change-over valve；9: flue；10: open stove burner；11: the second combustion gas
Service；12: combustion air service；131,132,133,133 ＇, 134,134 ＇, 135,136,137,137 ＇: regulation
Valve；143,143 ＇, 145,146,147,147 ＇: stop valve.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
One embodiment of the thermal storage type oxygen-enriched combusting method of the present invention, comprises the steps:
S1: one burner, as burning burner, is passed through combustion gas, oxygen and air, combustion gas, oxygen and sky in burning burner
Gas mixes at the burner nozzle of burning burner, and burns in burner hearth；Meanwhile, another burner as smoke evacuation burner,
Being passed through nitrogen in the gas conduct pipe of smoke evacuation burner, the flue gas produced that burns in burner hearth enters in the regenerator of smoke evacuation burner, cigarette
Gas and the heat storage heat exchange in regenerator, the heat of flue gas is absorbed by heat storage, and temperature reduces and forms waste gas, and discharges smoke evacuation burning
Mouth.
S2: through a commutation cycle, performs switch operation, carries out the inverse process of step S1 in two burners, front
The burning burner of one commutation cycle becomes burner of discharging fume, and the smoke evacuation burner of previous commutation cycle then becomes burning burner.
S3: repeat step S1-step S2.
The above-mentioned combustion method of the present embodiment, after the duty of burner is shifted to smoke evacuation by burning, to the combustion of this burner
It is passed through nitrogen in airway, it is carried out nitrogen purging, burn in combustion gas therein all can be blown into burner hearth, thus protect
Demonstrate,prove the safety of whole combustion process；When the duty of burner is for smoke evacuation, then continues to be passed through nitrogen wherein, thus can hinder
Stop in the gas conduct pipe that high-temperature flue gas enters smoke evacuation burner, and gas conduct pipe is played the effect of cooling, thus protect combustion gas to lead
Pipe is not by high-temperature flue gas scaling loss.
Further, in the present embodiment, in described step S1, being passed through combustion gas, oxygen and air in burning burner is:
In the gas conduct pipe of burning burner, it is passed through combustion gas, and in its regenerator, is passed through the mixed gas of air and oxygen；Gaseous mixture
Body is preheated, combustion gas and the mixed gas being preheated at the heat of the heat storage arranged in regenerator absorption regenerator
Mix at the burner nozzle of burning burner, and burn in burner hearth.Thus can avoid inside burner hearth at burner nozzle
Produce higher localized hyperthermia, prevent gas conduct pipe to be burnt further, extend its service life.
Further, in the present embodiment, before performing step S1, following steps are performed:
S01: to be located on burner hearth open stove burner in be passed through combustion gas and combustion air, light and open stove burner, make combustion gas and
Combustion air mixes at the burner nozzle opening stove burner, and burns in burner hearth.
S02: be filled with air and combustion gas in burning burner, stop to opening when the temperature in burner hearth rises to preset temperature
Combustion gas and combustion air it is passed through in stove burner.
Thereby, it is possible to make the temperature in burner hearth be raised to the temperature of technique initialization before two burners are started working, and at stove
Form uniformity of temperature profile in thorax, burn flame completely, thus ensures that the temperature that two burners are started working in rear hearth is divided
Cloth is uniform, prevents localized hyperthermia further, and the combustion gas entering burner hearth is fully burnt, it is achieved the superhigh temperature in burner hearth
Operating mode, improves efficiency of combustion.
In the present embodiment, the air being passed through in burning burner is preferably compressed air.
To sum up, the thermal storage type oxygen-enriched combusting method of the present embodiment, after the duty of burner is shifted to smoke evacuation by burning, to
It is passed through nitrogen in the gas conduct pipe of this burner, it is carried out nitrogen purging, carry out in combustion gas therein all can be blown into burner hearth
Burning, thus ensure the safety of whole combustion process；When the duty of burner is for smoke evacuation, then continue to be passed through nitrogen wherein
Gas, thus can stop high-temperature flue gas to enter in the gas conduct pipe of smoke evacuation burner, and gas conduct pipe plays the effect of cooling, thus
Protection gas conduct pipe is not by high-temperature flue gas scaling loss.
As in figure 2 it is shown, the present embodiment additionally provides a kind of thermal storage type oxygen-enriched combustion apparatus, including: burner hearth 1, burner, first
Fuel gas supply pipeline, nitrogen service, air feed conduit and oxygen feeding pipe road.Wherein, burner is located at burner hearth 1, burner
There are two, for being respectively arranged on first burner 21 and second burner 22 at burner hearth 1 two ends.Each burner includes regenerator and is located at storage
Hot cell, near the burner nozzle of one end of burner hearth 1, is provided with heat storage and gas conduct pipe in regenerator, burner nozzle is provided with first and leads to
Hole and around the second through hole of the first through hole, one end of gas conduct pipe connects with the first through hole, the other end of gas conduct pipe and the
One fuel gas supply pipeline connects with nitrogen service, and the second through hole connects with regenerator.Air feed conduit and oxygen supply
Pipeline all connects away from one end of burner hearth 1 with burner.In the present embodiment, when one in two burners is as burning burner,
Another is then as smoke evacuation burner.Combustion gas and air and oxygen are entered burner hearth 1 by the burner that burns and burn, and the flue gas of generation then can be by
Smoke evacuation burner is discharged, and flue gas is through the regenerator of smoke evacuation burner, and its heat is absorbed by the heat storage in regenerator, when this burning
After the duty of mouth is shifted to burning by smoke evacuation, the heat that heat storage absorbs then can be used for the oxygen being passed through in regenerator and sky
Gas preheats.The gas conduct pipe of the present embodiment uses carbofrax material to make.
The above-mentioned thermal storage type oxygen-enriched combustion apparatus of the present embodiment, is provided with the nitrogen supply pipe that the gas conduct pipe with burner connects
Road, after the duty of burner is shifted to smoke evacuation by burning, can be passed through nitrogen in the gas conduct pipe of this burner, it is carried out nitrogen
Air-blowing is swept, and to burn in combustion gas therein is all blown into burner hearth, thus ensures the safety of whole combustion process；Burning
When the duty of mouth is for smoke evacuation, the most sustainable nitrogen that is passed through wherein, high-temperature flue gas thus can be stoped to enter smoke evacuation burner
In gas conduct pipe, and gas conduct pipe is played the effect of cooling, thus protect gas conduct pipe not by high-temperature flue gas scaling loss.
Further, in this embodiment, regenerator is provided with, away from one end of burner hearth 1, the oxidant service communicated therewith,
Two oxidant services are selectively connected with air feed conduit 5 by a four-way change-over valve 8, oxygen feeding pipe road
6 are located on air feed conduit 5, and, oxygen feeding pipe road 6 connects with air feed conduit 5, and four-way change-over valve 8 also connects
It is connected to flue 9.That is: be connected on four ports of four-way change-over valve 8 air feed conduit 5, flue 9 and
The oxidant service 4 of the first burner 21 connection and oxidant service 4 ＇ that connects with the second burner 22.When first burns
When mouth 21 is burning burner, the second burner 22 is smoke evacuation burner, four-way change-over valve 8 makes oxidant service 4 supply with air
Connect to pipeline 5 and do not connect with flue 9, and oxidant service 4 ＇ connects and air supply pipe with flue 9
Road 5 does not connects；After a commutation cycle, the two exchanges, i.e. scalable four-way change-over valve 8 so that oxidant service
4 ＇ connect with air feed conduit 5 and do not connect with flue 9, and oxidant service 4 connects with flue 9 and sky
Gas service 5 does not connects.In the present embodiment, the exit of flue 9 is provided with air-introduced machine.
Thus, in the thermal storage type oxygen-enriched combustion apparatus of the present embodiment, the first fuel gas supply pipeline connects with gas conduct pipe,
Air feed conduit 5 is connected with regenerator by oxidant service with oxygen feeding pipe road 5, and combustion gas can be made to be led by combustion gas
Pipe is passed through in burner nozzle, and air and oxygen are passed through regenerator preheating by oxidant service, then with combustion after being sufficiently mixed
Gas mixes at burner nozzle, and burns in burner hearth 1.Burner hearth 1 thus can be avoided internal higher in generation at burner
Localized hyperthermia, prevents gas conduct pipe to be burnt further, extends its service life.
Further, in the present embodiment, burner hearth 1 is additionally provided with and opens stove burner 10, open stove burner 10 and be provided with the second combustion gas
Service 11 and combustion air service 12.Open stove burner 10 for starting working at the first burner 21 and the second burner 22
Front elder generation is passed through combustion gas and combustion air in burner hearth, and lights and make it burn in burner hearth 1, makes the temperature in burner hearth be raised to technique
The temperature set.In this embodiment, the second fuel gas supply pipeline 11 is provided with regulation valve 131, on combustion air service 12
It is provided with regulation valve 132, is respectively used to regulation and controls combustion gas and the intake of combustion air.The import department of comburent air duct 12
It is provided with aerator.
Further, in the present embodiment, the first fuel gas supply pipeline, oxidant service, air feed conduit 5, oxygen
Be equipped with regulation valve on gas service 6 and nitrogen service, be respectively used to regulation and control combustion gas, oxidant, air,
Oxygen and the intake of nitrogen, above-mentioned oxidant is the mixed gas of air and oxygen.
Further, in the present embodiment, the first fuel gas supply pipeline, air feed conduit 5, oxygen feeding pipe road 6 and
It is equipped with stop valve on nitrogen service, is respectively used to control the first fuel gas supply pipeline, air feed conduit 5, oxygen confession
To pipeline 6 and the opening and closing of nitrogen service.
The above-mentioned thermal storage type oxygen-enriched combustion apparatus of the present embodiment in use, first starts aerator, opens combustion air
Regulation valve 132 on service 12 and the regulation valve 131 on the second fuel gas supply pipeline 11, to be passed through combustion gas in burner hearth 1
And combustion air, light with electronic igniting controllor and open stove burner 10, regulation regulation valve 132 and regulation valve 131, combustion-supporting to control
Air and the intake of combustion gas.When the temperature in burner hearth 1 rises to preset temperature (800-900 DEG C), open and the first burner 21
Regulation valve 134 on the oxidant service 4 of connection and the tune on oxidant service 4 ＇ that connects with the second burner 22
Joint valve 134 ＇, opens air-introduced machine, opens the stop valve 145 on air feed conduit 5 and regulation valve 135, to be passed through in burner hearth 1
Air, opens the stop valve 143 on the first fuel gas supply pipeline 3 connected with the first burner 21 and regulation valve 133, with to burner hearth
It is passed through combustion gas in 1, when forming uniformity of temperature profile in burner hearth 1, burning completely after flame, closes regulation valve 132 and regulation
Valve 131.The cut-out 146 being then turned on oxygen feeding pipe road 6 and regulation valve 136, four-way change-over valve 8 makes and the first burner 21
The oxidant service 4 of connection connects with air feed conduit 5 and oxygen feeding pipe road 6 and does not connects with flue 9, and
Oxidant service 4 ＇ connected with the second burner 22 connects with flue 9 and air feed conduit 5 and oxygen feeding pipe
Road 6 does not connects, and now the first burner 21 is burning burner, and the second burner 22 is smoke evacuation burner.Combustion gas is by the first gas supply pipe
Road 3 is passed through in the gas conduct pipe of the first burner 21；It is passed through the first burner 21 by oxidant service 4 after air and oxygen mix
Regenerator in, and be preheated to 900-1600 DEG C.The mixed gas of combustion gas and the air being preheated and oxygen is at burner nozzle
Place's mixing, and burn in burner hearth 1, the flue gas of generation then enters the regenerator of the second burner 22 and through the storage with the second burner 22
Oxidant service 4 ＇ and the flue 9 that connects with oxidant service 4 ＇ of hot cell connection are discharged.Now open
Stop valve 147 ＇ on nitrogen service 7 ＇ connected with the second burner 22 and regulation valve 137 ＇, with the combustion to the second burner 22
It is passed through nitrogen in airway, thus stops the flue gas in burner hearth 1 to enter in the gas conduct pipe of the second burner 22.Through a commutation
After cycle (60-180 second), close the stop valve 143 on the first fuel gas supply pipeline 3 connected with the first burner 21, to stop
It is passed through combustion gas to the first burner 21, opens the stop valve 147 on the nitrogen service 7 connected with the first burner 21 and regulation valve
137, to be passed through nitrogen to the first burner 21, close the stop valve 146 on oxygen feeding pipe road 6, to stop to the first burner 21
It is passed through oxygen.After 4 seconds, regulate four-way change-over valve 8 so that oxidant service 4 ＇ and air feed conduit 5 and oxygen supply
Pipeline 6 connects and does not connects with flue 9, and oxidant service 4 connects with flue 9 and air feed conduit 5
And oxygen feeding pipe road 6 does not connects, now the first burner 21 is transformed to burner of discharging fume, and the second burner 22 is transformed to burning and burns
Mouth.After 6 seconds, open the stop valve 146 on oxygen feeding pipe road 6, to be passed through oxygen to the second burner 22, now, air and oxygen
It is passed through in the regenerator of the second burner 22 by mixed gas pipeline 4 ＇ after gas mixing.Close the nitrogen connected with the second burner 22 to supply
To stop valve 147 ＇ on pipeline 7 ＇ and regulation valve 137 ＇, to stop being passed through nitrogen to the second burner 22, open and the second burner
Stop valve 143 ＇ on first fuel gas supply pipeline 3 ＇ of 22 connections and regulation valve 133 ＇, to be passed through combustion gas to the second burner 22.
After another commutation cycle, four-way change-over valve 8 automatic reverse, and perform the operation contrary with above-mentioned steps.By four
Logical reversal valve 8 automatic reverse, may be repeated above-mentioned steps, thus realizes the first burner 21 and duty of the second burner 22
Automatic conversion, and then the heat of the flue gas that burning produces is made full use of, improves heat utilization efficiency.
The air feed conduit 5 of the present embodiment is preferred for being passed through compressed air.
When the thermal storage type oxygen-enriched combusting method of the present embodiment is applied to the thermal storage type oxygen-enriched combustion apparatus of this enforcement, its tool
Body operating procedure is as follows:
S01: start aerator, opens regulation valve 132 and the second fuel gas supply pipeline of on combustion air service 12
Regulation valve 131 on 11, lights with electronic igniting controllor and opens stove burner 10, and regulation regulation valve 132 and regulation valve 131, with control
Combustion air processed and the intake of combustion gas.
S02: when the temperature in burner hearth 1 rises to preset temperature (800-900 DEG C), opens the oxygen connected with the first burner 21
Regulation valve 134 on agent service 4 and regulation valve 134 ＇ on oxidant service 4 ＇ that connects with the second burner, open
Open air-introduced machine, open the stop valve 145 on air feed conduit 5 and regulation valve 135, open first connected with the first burner 21
Stop valve 143 on fuel gas supply pipeline 3 and regulation valve 133, when forming uniformity of temperature profile, burning fire completely in burner hearth 1
After flame, close regulation valve 132 and regulation valve 131.
S1: opening the cut-out 146 on oxygen feeding pipe road 6 and regulation valve 136, four-way change-over valve 8 makes and the first burner
The oxidant service 4 of 21 connections connects with air feed conduit 5 and oxygen feeding pipe road 6 and does not connects with flue 9,
And oxidant service 4 ＇ connected with the second burner 22 then connects with flue 9 and air feed conduit 5 and oxygen supply
Do not connect to pipeline 6, meanwhile, open stop valve 147 ＇ on nitrogen service 7 ＇ connected with the second burner 22 and tune
Joint valve 137 ＇.
S2: through a commutation cycle (60-180 second), performs switch operation, and switch operation specifically includes and operates step as follows
Rapid:
S21: close the stop valve 143 on the first fuel gas supply pipeline 3 connected with the first burner 21, opens and burns with first
Stop valve 147 on the nitrogen service 7 of mouth 21 connection and regulation valve 137, close the stop valve on oxygen feeding pipe road 6
146。
After the S22:4 second, regulate four-way change-over valve 8 so that oxidant service 4 ＇ supplies with air feed conduit 5 and oxygen
Connect to pipeline 6 and do not connect with flue 9, and oxidant service 4 connects and air feed conduit with flue 9
5 and oxygen feeding pipe road 6 do not connect；After 6 seconds, open the stop valve 146 on oxygen feeding pipe road 6.
S23: close stop valve 147 ＇ on nitrogen service 7 ＇ connected with the second burner 22 and regulation valve 137 ＇, open
Open stop valve 143 ＇ on the first fuel gas supply pipeline 3 ＇ connected with the second burner 22 and regulation valve 133 ＇.
S24: after another commutation cycle, four-way change-over valve 8 automatic reverse, and perform and step S21-S23 phase
Anti-operation.
S3: repeated execution of steps S2.
To sum up, the thermal storage type oxygen-enriched combustion apparatus of the present embodiment, it is provided with the nitrogen supply that the gas conduct pipe with burner connects
Pipeline, after the duty of burner is shifted to smoke evacuation by burning, can be passed through nitrogen in the gas conduct pipe of this burner, carry out it
Nitrogen purges, and to burn in combustion gas therein is all blown into burner hearth, thus ensures the safety of whole combustion process；?
When the duty of burner is for smoke evacuation, the most sustainable nitrogen that is passed through wherein, high-temperature flue gas thus can be stoped to enter smoke evacuation burner
Gas conduct pipe in, and gas conduct pipe is played the effect of cooling, thus protects gas conduct pipe not by high-temperature flue gas scaling loss.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a thermal storage type oxygen-enriched combusting method, it is characterised in that comprise the steps:
S1: one burner, as burning burner, is passed through combustion gas, oxygen and air in burning burner, and combustion gas, oxygen and air exist
Mixing at the burner nozzle of burning burner, and burn in burner hearth, meanwhile, another burner is as smoke evacuation burner, to row
Be passed through nitrogen in the gas conduct pipe of cigarette burner, burner hearth burns produce flue gas enter smoke evacuation burner regenerator in, flue gas with
Heat storage heat exchange in regenerator, the heat of flue gas is absorbed by heat storage, and temperature reduces and forms waste gas, and discharges smoke evacuation burner；
S2: through a commutation cycle, performs switch operation, carries out the inverse process of described step S1 in two burners, front
The burning burner of one commutation cycle becomes burner of discharging fume, and the smoke evacuation burner of previous commutation cycle then becomes burning burner；
S3: step S2 described in repeating said steps S1-.
Thermal storage type oxygen-enriched combusting method the most according to claim 1, it is characterised in that in described step S1, described to
Being passed through combustion gas, oxygen and air in burning burner is: be passed through combustion gas in the gas conduct pipe of burning burner, and in its regenerator
It is passed through the mixed gas of air and oxygen；The heat of the heat storage that mixed gas is arranged in absorbing regenerator through regenerator
And be preheated, combustion gas mixes at the burner nozzle of burning burner with the mixed gas being preheated, and burns in burner hearth.
Thermal storage type oxygen-enriched combusting method the most according to claim 1, it is characterised in that perform before performing described step S1
Following steps:
S01: to be located on burner hearth open stove burner in be passed through combustion gas and combustion air, light and open stove burner, make combustion gas and combustion-supporting
Air mixes at the burner nozzle opening stove burner, and burns in burner hearth；
S02: be filled with air and combustion gas in burning burner, stops when the temperature in burner hearth rises to preset temperature to opening stove burning
Combustion gas and combustion air it is passed through in mouth.
4. a thermal storage type oxygen-enriched combustion apparatus, it is characterised in that including: burner hearth；It is located at the burner of described burner hearth, described burner
Having two, each described burner includes regenerator and is located at the described regenerator burner nozzle near one end of described burner hearth, institute
Be provided with heat storage and gas conduct pipe in stating regenerator, described burner nozzle be provided with the first through hole and around described first through hole
Two through holes, one end of described gas conduct pipe connects with described first through hole, and the other end of described gas conduct pipe and the first combustion gas supply
Connecting with nitrogen service to pipeline, described second through hole connects with described regenerator；And with described burner away from described
The air feed conduit of one end connection of burner hearth and oxygen feeding pipe road.
Thermal storage type oxygen-enriched combustion apparatus the most according to claim 4, it is characterised in that described regenerator is away from described burner hearth
One end be provided with the oxidant service communicated therewith, two described oxidant services can by a four-way change-over valve
Selectively connecting with described air feed conduit, described oxygen feeding pipe road is located on described air feed conduit and connects with it
Logical, described four-way change-over valve is also associated with flue.
Thermal storage type oxygen-enriched combustion apparatus the most according to claim 4, it is characterised in that be additionally provided with on described burner hearth and open stove burning
Mouth, described in open stove burner and be provided with the second fuel gas supply pipeline and combustion air service.
Thermal storage type oxygen-enriched combustion apparatus the most according to claim 6, it is characterised in that described second fuel gas supply pipeline and
It is equipped with regulation valve on described combustion air service.
Thermal storage type oxygen-enriched combustion apparatus the most according to claim 5, it is characterised in that described first fuel gas supply pipeline,
On described oxidant service, described air feed conduit, described oxygen feeding pipe road and described nitrogen service all
It is provided with regulation valve.
Thermal storage type oxygen-enriched combustion apparatus the most according to claim 4, it is characterised in that described first fuel gas supply pipeline,
It is equipped with stop valve on described air feed conduit, described oxygen feeding pipe road and described nitrogen service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602787.8A CN106051747A (en) | 2016-07-27 | 2016-07-27 | Heat accumulation type oxygen-enriched combustion method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610602787.8A CN106051747A (en) | 2016-07-27 | 2016-07-27 | Heat accumulation type oxygen-enriched combustion method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051747A true CN106051747A (en) | 2016-10-26 |
Family
ID=57418305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610602787.8A Pending CN106051747A (en) | 2016-07-27 | 2016-07-27 | Heat accumulation type oxygen-enriched combustion method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051747A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795990A (en) * | 2017-11-02 | 2018-03-13 | 昆山恒泰永虹工业炉有限公司 | Three chamber integration heat-storage type burners and its method |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN108330272A (en) * | 2018-01-19 | 2018-07-27 | 山东钢铁集团日照有限公司 | A kind of single Regeneratiue billet reheating furnace using blast furnace gas |
| CN109185881A (en) * | 2018-09-30 | 2019-01-11 | 西安鑫顶天装备智能科技有限公司 | A kind of multisection type oxygen-enriched combustion-supporting burner special |
| CN109282282A (en) * | 2018-08-29 | 2019-01-29 | 东键飞能源科技(上海)有限公司 | A kind of rich oxygen type heat accumulating burner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635576A1 (en) * | 1996-09-02 | 1998-03-05 | Linde Ag | Method and device for switching off a burner |
| CN101280916A (en) * | 2008-05-14 | 2008-10-08 | 天津市赛洋工业炉有限公司 | Thermal storage type oxygen-enriched combusting method and device |
| CN201724217U (en) * | 2010-08-04 | 2011-01-26 | 雷金狮 | Premix burner nozzle with air purging device |
| CN202813374U (en) * | 2012-08-06 | 2013-03-20 | 闻喜县白玉矿业有限公司 | Magnesium reduction furnace combustion system |
| CN104373953A (en) * | 2014-11-14 | 2015-02-25 | 北京神雾环境能源科技集团股份有限公司 | Intelligent combustion system comprising restriction orifice plates |
| CN205119069U (en) * | 2015-10-12 | 2016-03-30 | 宝钢工业炉工程技术有限公司 | Heat accumulation formula oxygen boosting burning radiant tube system |
| CN206055608U (en) * | 2016-07-27 | 2017-03-29 | 北京神雾环境能源科技集团股份有限公司 | A kind of thermal storage type oxygen-enriched combustion apparatus |
-
2016
- 2016-07-27 CN CN201610602787.8A patent/CN106051747A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635576A1 (en) * | 1996-09-02 | 1998-03-05 | Linde Ag | Method and device for switching off a burner |
| CN101280916A (en) * | 2008-05-14 | 2008-10-08 | 天津市赛洋工业炉有限公司 | Thermal storage type oxygen-enriched combusting method and device |
| CN201724217U (en) * | 2010-08-04 | 2011-01-26 | 雷金狮 | Premix burner nozzle with air purging device |
| CN202813374U (en) * | 2012-08-06 | 2013-03-20 | 闻喜县白玉矿业有限公司 | Magnesium reduction furnace combustion system |
| CN104373953A (en) * | 2014-11-14 | 2015-02-25 | 北京神雾环境能源科技集团股份有限公司 | Intelligent combustion system comprising restriction orifice plates |
| CN205119069U (en) * | 2015-10-12 | 2016-03-30 | 宝钢工业炉工程技术有限公司 | Heat accumulation formula oxygen boosting burning radiant tube system |
| CN206055608U (en) * | 2016-07-27 | 2017-03-29 | 北京神雾环境能源科技集团股份有限公司 | A kind of thermal storage type oxygen-enriched combustion apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795990A (en) * | 2017-11-02 | 2018-03-13 | 昆山恒泰永虹工业炉有限公司 | Three chamber integration heat-storage type burners and its method |
| CN108330272A (en) * | 2018-01-19 | 2018-07-27 | 山东钢铁集团日照有限公司 | A kind of single Regeneratiue billet reheating furnace using blast furnace gas |
| CN108131672A (en) * | 2018-02-13 | 2018-06-08 | 项玮 | The low nitrogen nitride flat flame heat-accumulating burner of industrial furnace |
| CN108131672B (en) * | 2018-02-13 | 2024-03-12 | 项玮 | Low-nitride flat flame heat accumulating type burner of industrial furnace |
| CN109282282A (en) * | 2018-08-29 | 2019-01-29 | 东键飞能源科技(上海)有限公司 | A kind of rich oxygen type heat accumulating burner |
| CN109185881A (en) * | 2018-09-30 | 2019-01-11 | 西安鑫顶天装备智能科技有限公司 | A kind of multisection type oxygen-enriched combustion-supporting burner special |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106051747A (en) | Heat accumulation type oxygen-enriched combustion method and device | |
| CN101280916B (en) | Thermal storage type oxygen-enriched combusting method and device | |
| WO2001013042A1 (en) | Device and method for feeding fuel | |
| CN1259522C (en) | Single end heat storage type radiation pipe burner device and its burning method | |
| CN104456568B (en) | Regenerative burner and working method thereof | |
| CN206055608U (en) | A kind of thermal storage type oxygen-enriched combustion apparatus | |
| CN208155050U (en) | A kind of novel high-efficient energy-saving crucible furnace | |
| CN108679604A (en) | A kind of mixed sky/cigarette light-hydrocarbon gas prepares burner | |
| CN2890657Y (en) | Heat storage type pulse burning nozzle | |
| JP2774751B2 (en) | Ultra low calorific value gas combustion device | |
| KR200276859Y1 (en) | Fuel and Air Injectors for Regenerative Burners | |
| CN208457953U (en) | A kind of mixed sky/cigarette light-hydrocarbon gas prepares burner | |
| JP4556041B2 (en) | Gas appliances | |
| JP4863541B2 (en) | Combustion apparatus and combustion method | |
| JPS59167621A (en) | Catalyst burner | |
| CN211694873U (en) | Heat accumulating type radiant tube burner | |
| JP3767414B2 (en) | Operation method of regenerative burner furnace and regenerative burner furnace | |
| CN204962838U (en) | Boiler oxygen boosting burning gas supply system | |
| JP3305506B2 (en) | Thermal storage combustion device | |
| JP4248132B2 (en) | Fuel supply apparatus and fuel supply method | |
| JPH10141611A (en) | Regenerative radiant box combustion burner | |
| CN106439867A (en) | Heat accumulation type catalytic combusting device | |
| KR20010065375A (en) | Three step combustion type burner of an oxide rare combustion type | |
| CN208456681U (en) | One kind being used for Distribution of Natural formula energy source station exhaust-heat boiler flue gas recirculating system | |
| KR100387592B1 (en) | Regenerative burners that suppress the production of nitrogen oxides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Applicant after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Applicant before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |