CN106594716A - Flue gas and air premixing pipe bundle self-cooling low-nitrogen combustion device and combustion method thereof - Google Patents
Flue gas and air premixing pipe bundle self-cooling low-nitrogen combustion device and combustion method thereof Download PDFInfo
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- CN106594716A CN106594716A CN201611100612.3A CN201611100612A CN106594716A CN 106594716 A CN106594716 A CN 106594716A CN 201611100612 A CN201611100612 A CN 201611100612A CN 106594716 A CN106594716 A CN 106594716A
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- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- 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
- F23C2202/00—Fluegas recirculation
- F23C2202/30—Premixing fluegas with combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2221/00—Pretreatment or prehandling
- F23N2221/12—Recycling exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/04—Gaseous fuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a flue gas and air premixing pipe bundle self-cooling low-nitrogen combustion device and a combustion method thereof. The flue gas and air premixing pipe bundle self-cooling low-nitrogen combustion device comprises a gas pipeline, an air blower and a flue gas and air premixing pipe bundle self-cooling low-nitrogen combustor; a flue gas and air mixing device is connected to an air inlet of the air blower; a flue gas and air mixing pipeline is connected to an air outlet of the air blower; a flue gas and air mixing ejector is connected onto the flue gas and air mixing pipeline; an air sleeve is arranged on the low-nitrogen combustor; a main gas jet pipe is arranged in the air sleeve; a circle of flue gas and air mixing cooling pipe bundle is arranged on the periphery of the main gas jet pipe and directly goes deep into a hearth; a burning torch is arranged on the combustor; a flue gas and air mixing inlet is formed in the air sleeve; the rear end of the main gas jet pipe communicates with a big fire gas pipeline provided with a big fire valve and a small fire gas pipeline provided with a small fire valve; and a flame detector is arranged on the end head of the burning torch. The device is applicable to a gas boiler, has the characteristics of simple structure, reasonable design, flame combustion with low nitrogen at low temperature, capability of automatic cooling, accurate control and the like, and ensures lower nitric oxide emission load of the gas boiler.
Description
Technical field
The present invention relates to gas fired-boiler low-NO_x combustion technology field, more particularly to a kind of self cooling low nitrogen of cigarette wind premix tube bank
Burner and its combustion method.
Background technology
The nitrogen oxides produced in fuel combustion process are mainly NO and a small amount of NO2, and both is referred to as NOx.Combustion gas
In the nitrogen oxides generated during burning, NO accounts for 90%, and remaining is NO2.Nitrogen oxides be to be formed photochemical fog and
One major reason of acid rain.
The conditions such as the growing amount and discharge capacity of NOx and ignition temperature, excess air coefficient are relevant.In various combustion processes
The generation dominant mechanism of NOx has three kinds, is thermal NO x, transient response type NOx and fuel type NOx respectively.Generated according to NOx
Mechanism, affects the factor of NOx generation amount mainly to have flame temperature, combustor section oxygen concentration, combustion product to stop in high-temperature region
Time and the characteristic of fuel, general flame temperature are higher, and the generation of NOx is more, and vice versa.And reduce oxynitride and generate
The approach of amount mainly controls flame temperature, prevents localized hyperthermia.
China's most area is affected by haze is different degrees of in recent years, and all parts of the country are all in improvement mist of making great efforts
Haze.Formally put into effect new on July 1st, 2015 in pot Beijing《Emission standard of air pollutants for boilers》Newly constructed boiler discharges nitrogen oxygen
Compound have to be lower than 30 milligrams/cubic metre.Existing boiler combustion machine version and control mode have air excess system
The problems such as counting big, local flame temperature is high so that discharged nitrous oxides are exceeded, therefore, burner structure reasonable in design, precisely
Control ignition temperature is the key of gas fired-boiler low nitrogen burning.
The content of the invention
For the deficiency that existing gas fired-boiler combustor is present, it is an object of the invention to：A kind of cigarette wind premix barrel is provided
Beam has simple structure, reasonable in design, low nitrogen burning, precisely control from low nitrogen combustion apparatus and its combustion method, the device is cooled down
The features such as processed, it is ensured that the nitrogen oxide emission of gas fired-boiler is extremely low.
In order to achieve the above object, the present invention adopts the following technical scheme that realization：
A kind of cigarette wind premix restrains self cooling but low nitrogen combustion apparatus, it is characterised in that：It is provided with fuel gas pipeline, aerator, cigarette
The self cooling but low NO of wind premix tube bank；Blower inlet is connected with cigarette wind blender, and blower export is connected with the mixed gas of cigarette wind
Pipeline, is connected with the mixed gas injection device of cigarette wind in cigarette wind gas mixing pipe road；The low NO is provided with windband, and main combustion is provided with windband
Gas blowout pipe, the main exhaust gas nozzle are fixedly installed in the middle of windband, are provided with position in its front end periphery through the ring flange of windband rear end
Adjustable spinning disk is put, the mixed air cooling tube bank of a circle cigarette wind, the cigarette wind gas mixing pipe beam around main exhaust gas nozzle, are provided with windband
It is uniformly arranged and fixed and is arranged on the periphery of main exhaust gas nozzle, gas phase is mixed with into the cigarette wind in windband in windband in port thereafter
Logical, its front end is stretched in boiler furnace；The mixed gas import of cigarette wind is provided with windband；Stretch out windband method in the main exhaust gas nozzle rear end
Outside blue disk, connect with big fire fuel gas pipeline and small fire fuel gas pipeline respectively, divide on big fire fuel gas pipeline and small fire fuel gas pipeline
Valve and valve are not provided with；Burning torch is additionally provided with the self cooling but low NO of cigarette wind premix tube bank, burning torch is arranged on cigarette wind
The outside of gas mixing pipe beam；The rear end of the burning torch is also stretched out outside windband ring flange, and burning torch is provided with three interfaces, respectively
Connection spark plug interface, light a fire fuel gas pipeline and the igniting combustion supporting wind pipeline drawn by the cigarette wind mixed gas import in windband, igniting
Valve and valve are respectively equipped with fuel gas pipeline and igniting combustion supporting wind pipeline, burning torch termination is provided with flame detector.
The present invention is further improved and the additional project of enforcement is：
The blower inlet connects cigarette wind blender, and the cigarette wind blender is provided with air intlet and gas approach, empty
Gas import is communicated with air, the smoke backflow pipeline of the flue extraction of gas approach connection boiler, the connection of cigarette wind mixer outlet
Cigarette wind gas mixing pipe road；The smoke regulating valve for adjusting flue gas flow is provided with the smoke backflow pipeline；In the smoke backflow
The minimum point of pipeline and cigarette wind gas mixing pipe road is equipped with drain valve；The mixed gas of extraction cigarette wind is provided with cigarette wind gas mixing pipe road to be back to
Flue, to adjust the mixed gas injection device of cigarette wind initial pressure, the mixed gas injection device is provided with bleed valve；The aerator is provided with
Air blower control cabinet.
The big fire fuel gas pipeline, small fire fuel gas pipeline, igniting fuel gas pipeline are connected with the main combustible pipe road for arranging respectively,
Main combustible pipe road is provided with manual modulation valve, double cut-out electromagnetic valves and gaseous-pressure switch.
The big fire valve, small fire valve, igniting burnt gas valve, double cut-out electromagnetic valves are controllable electromagnetic valve, flue gas
Regulating valve is electric control valve, and the aerator sets frequency-variable controller, the electromagnetic valve, frequency-variable controller, flame sensor difference
On-off control is carried out with the PLC for arranging to be connected, PLC is provided with guidance panel.
Flow transducer and pressure transducer are equipped with the main combustible pipe road and smoke backflow pipeline；Set in burner hearth
There is flame sensor, temperature sensor is provided with flue, the flow transducer, pressure transducer and temperature sensor are respectively
Signal transmission is carried out with the PLC to be connected, data memory module and data analysis module is provided with PLC,
Pressure, flow to each pipeline carries out timing monitoring and data record storage, and is analyzed, when discovery wherein has pipeline or stove
Thorax operation sends alarm signal when abnormal, when burner hearth is without flame, when gaseous-pressure, flue gas pressures are less than setting value, in report
Fuel gas pipeline, cigarette wind gas mixing pipe road and aerator are immediately closed off while alert.
6th, the combustion method of low nitrogen combustion apparatus according to claim 5, is characterized in that comprising the steps：
1) start shooting：Electricity on PLC, guidance panel and air blower control cabinet, arranges combustion gas, the normal pressure of the mixed gas of cigarette wind
Burner operation, in 10-20kPa, on guidance panel is set to igniting operation, it is ensured that smoke regulating valve is closed, is started by value
Aerator runs；
2) fuel gas pipeline and cigarette wind gas mixing pipe road are opened：Regulating gas pressure 10-20kPa, opens and sets on combustion gas main pipeline
The manual modulation valve put, combustion gas are entered in combustion gas main pipeline；Open the smoke regulating valve and aerator on smoke backflow pipe, cigarette
Wind gas mixing pipe road is opened, and the mixed gas of cigarette wind enters windband；
3) starting ignition process：Gas electromagnetic valve of lighting a fire on gas ignition branch road is opened, igniting fuel gas pipeline is passed through combustion gas,
Igniting mixed pneumoelectric magnet valv is opened, burning torch, burning torch operation are lighted in ignition transformer sparking；
4) ignition process success：After burning torch operation, PLC opens small fire gas electromagnetic valve；Combustion gas, mixed gas are entered
Windband and bundled tube combustion head, burning torch light small fire, after Fike detector detects small fire operation, are considered as and light a fire successfully, igniting
Process terminates, and proceeds to step 6)；
5) loss of ignition：In ignition process, Fike detector is not detected by small fire run signal, that is, be considered as loss of ignition；PLC
All electromagnetic valves are closed in controller control, are cut off natural gas supply, and are started alarm equipment alarm；Aerator purging burner hearth 5 minutes,
It is then back to step 3), restart igniting process；
6) it is normal to run：After igniting success, 10-20 minutes are run in small fire gear, big fire combustion is opened by guidance panel
Burner operation is set to big fire gear by pneumoelectric magnet valve, and smoke regulating valve is opened, while opening on the mixed gas injection pipeline of cigarette wind
Bleed valve, burner enters normal operation.
7) parking step：
(1) orderly shutdown：
Flame-out button, PLC control automatic self-closing gas pipeline solenoid are clicked on guidance panel, and is carried out
Stop the operation of aerator after furnace purge operation, realize orderly shutdown；
(2) scram：
When low nitrogen combustion apparatus are in running, gaseous-pressure, cigarette wind initial pressure be below or above setting value or
When point rifle fire extinguishing, main fray-out of flame, gas leakage, PLC control automatic alarm equipment alarm, and it is automatically switched off each electricity
Magnet valve, cuts off fuel gas pipeline, closes aerator, stops burner operation, and is purged, realizes safely scram.
The mechanism of the reduction discharged nitrous oxides of the present invention：The cigarette wind gas mixing pipe arranged in the windband of this low nitrogen combustion apparatus
Around Shu Zhu exhaust gas nozzles, as its front end is longer than main exhaust gas nozzle, and stretch into burner hearth, formed at the combustion head one by
Every the bundled tube combustion head that steel pipe is surrounded, after natural gas is mixed in bundled tube combustion head with cigarette wind gaseous mixture, by steel pipe gap
Place is ejected in stove chamber inner combustion, due to the incorporation of the mixed gas of cigarette wind, reduces the fuel value of combustion gas, so as to reduce the combustion of natural gas
Burn temperature.And gaseous mixture is burnt on tube bank surface, and the low temperature cigarette wind mixed gas being passed through in restraining in addition take away burning
When restrain the heat that surface produces, reduce further in burner hearth the ignition temperature of combustion gas and tube bank surface flame temperature, significantly
The generation of nitrogen oxides is reduced, while cooling protection is carried out to restraining steel pipe.
Compared with boiler combustion device in prior art, the self cooling low nitrogen combustion of cigarette wind premix cigarette wind premix tube bank of the present invention
Burn device and its combustion method has the advantage that：
(1) natural gas that the cigarette wind gaseous mixture in windband is ejected with natural air gun is in the combustion head cavity that tube bank is surrounded
Mixing, then sprays into burner hearth by tube gap and fully burns on tube bank surface, cigarette wind mixed gas drop is passed through in restraining in addition
Temperature, the mixed gas after intensification restrain the heat that surface produces when taking away burning simultaneously into burner hearth, reduce the combustion of natural gas
Temperature and surface flame temperature are burnt, is greatly reduced the generation of nitrogen oxides, is fundamentally controlled the generation of nitrogen oxides, for
Environment protection significance is great.
(2) backflow flue gas improve the quantity of heat convection of boiler into burner hearth.
(3) frequency conversion aerator is arranged near stove tail smoke exhaust pipe, and peripheral hardware cigarette wind blender, reduces fan noise.
(4) simple structure, it is reasonable in design, it is easy to operate, particularly automatically control degree high.
(5) operation of the invention is full intellectualized, is provided with complete control function and warning function, operating safety factor
It is very high, can fully ensure the safety of production run.
Description of the drawings
Overall structure diagram of the accompanying drawing 1 for the present invention.
Structural representation of the accompanying drawing 2 for the low NO of the present invention.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings：
Embodiment：Refering to accompanying drawing 1,2, a kind of cigarette wind premix restrains self cooling but low nitrogen combustion apparatus and its combustion method, if
There are fuel gas pipeline, aerator 2, self cooling but low NO 1 of cigarette wind premix tube bank；Blower inlet is connected with cigarette wind blender 3,
Blower export is connected with cigarette wind gas mixing pipe road 9, is connected with cigarette wind and mixes gas injection device 7 in cigarette wind gas mixing pipe road；The low nitrogen burning
Device is provided with windband 34, and main exhaust gas nozzle 35 is provided with windband, and the main exhaust gas nozzle is fixedly installed through the ring flange of windband rear end
In the middle of windband, the adjustable spinning disk 29 in position is provided with its front end periphery, be provided with a circle in windband around main exhaust gas nozzle
The mixed air cooling tube bank 28 of cigarette wind, the cigarette wind gas mixing pipe beam is uniformly arranged and fixed and is arranged on the periphery of main exhaust gas nozzle, thereafter port
In windband, logical with into the mixed gas phase of cigarette wind in windband, its front end is stretched in 32 burner hearth of boiler；Cigarette wind is provided with windband to mix
Gas import 25；The main exhaust gas nozzle rear end is stretched out outside windband ring flange 27, fires with big fire fuel gas pipeline 12 and small fire respectively
Air pipe 22 is connected, and valve 14 and valve 15 are respectively equipped with big fire fuel gas pipeline and small fire fuel gas pipeline；The premix tube bank of cigarette wind
Burning torch 26 is additionally provided with from cooling low NO, burning torch is arranged on the outside of cigarette wind gas mixing pipe beam；The burning torch
Rear end is also stretched out outside windband ring flange 27, and burning torch is provided with three interfaces, connects spark plug interface 4 respectively, combustion gas of lighting a fire
Pipeline 23 and the igniting combustion supporting wind pipeline 24 drawn by the cigarette wind mixed gas import in windband, igniting fuel gas pipeline and igniting combustion supporting wind
Valve 16 and valve 11 are respectively equipped with pipeline, burning torch termination is provided with flame detector.
The blower inlet connection cigarette wind blender 3, the cigarette wind blender is provided with air intlet and gas approach, empty
Gas import is communicated with air, and the smoke backflow pipeline 10 of the extraction of flue 31 of gas approach connection boiler 32, cigarette wind blender go out
Mouth connection cigarette wind gas mixing pipe road 9；The smoke regulating valve 6 for adjusting flue gas flow is provided with the smoke backflow pipeline；Described
The minimum point of smoke backflow pipeline and cigarette wind gas mixing pipe road is equipped with drain valve 5；Extraction cigarette wind is provided with cigarette wind gas mixing pipe road
Mixed gas is back to flue 31, and to adjust the mixed gas injection device 7 of cigarette wind initial pressure, the mixed gas injection device is provided with bleed valve 8；
The aerator is provided with air blower control cabinet.
The big fire fuel gas pipeline, small fire fuel gas pipeline, igniting fuel gas pipeline are connected with the main combustible pipe road for arranging respectively,
Main combustible pipe road is provided with manual modulation valve 17, double cut-out electromagnetic valves 13 and gaseous-pressure switch 21.The big fire valve, small fire
Valve, igniting burnt gas valve, double cut-out electromagnetic valves are controllable electromagnetic valve, and smoke regulating valve is electric control valve, the air blast
Machine sets frequency-variable controller, and the electromagnetic valve, frequency-variable controller, flame sensor are switched with the PLC for arranging respectively
Control connection, PLC are provided with guidance panel.
Flow transducer and pressure transducer are equipped with the main combustible pipe road and smoke backflow pipeline；Set in burner hearth
There is flame sensor, temperature sensor is provided with flue, the flow transducer, pressure transducer and temperature sensor are respectively
Signal transmission is carried out with the PLC to be connected, data memory module and data analysis module is provided with PLC,
Pressure, flow to each pipeline carries out timing monitoring and data record storage, and is analyzed, when discovery wherein has pipeline or stove
Thorax operation sends alarm signal when abnormal, when burner hearth is without flame, when gaseous-pressure, flue gas pressures are less than setting value, in report
Fuel gas pipeline, cigarette wind gas mixing pipe road and aerator are immediately closed off while alert.
The combustion method of above-mentioned low nitrogen combustion apparatus, using following steps：
1) start shooting：Electricity on PLC, guidance panel and air blower control cabinet, arranges combustion gas, the normal pressure of the mixed gas of cigarette wind
Burner operation, in 10-20kPa, on guidance panel is set to igniting operation, it is ensured that smoke regulating valve is closed, is started by value
Aerator runs；
2) fuel gas pipeline and cigarette wind gas mixing pipe road are opened：Regulating gas pressure 10-20kPa, opens and sets on combustion gas main pipeline
The manual modulation valve put, combustion gas are entered in combustion gas main pipeline；Open the smoke regulating valve and aerator on smoke backflow pipe, cigarette
Wind gas mixing pipe road is opened, and the mixed gas of cigarette wind enters windband；
3) starting ignition process：Gas electromagnetic valve of lighting a fire on gas ignition branch road is opened, igniting fuel gas pipeline is passed through combustion gas,
Igniting mixed pneumoelectric magnet valv is opened, burning torch, burning torch operation are lighted in ignition transformer sparking；
4) ignition process success：After burning torch operation, PLC opens small fire gas electromagnetic valve；Combustion gas, mixed gas are entered
Windband and bundled tube combustion head, burning torch light small fire, after Fike detector detects small fire operation, are considered as and light a fire successfully, igniting
Process terminates, and proceeds to step 6)；
5) loss of ignition：In ignition process, Fike detector is not detected by small fire run signal, that is, be considered as loss of ignition；PLC
All electromagnetic valves are closed in controller control, are cut off natural gas supply, and are started alarm equipment alarm；Aerator purging burner hearth 5 minutes,
It is then back to step 3), restart igniting process；
6) it is normal to run：After igniting success, 10-20 minutes are run in small fire gear, big fire combustion is opened by guidance panel
Burner operation is set to big fire gear by pneumoelectric magnet valve, and smoke regulating valve is opened, while opening on the mixed gas injection pipeline of cigarette wind
Bleed valve, burner enters normal operation.
7) parking step：
(1) orderly shutdown：
Flame-out button, PLC control automatic self-closing gas pipeline solenoid are clicked on guidance panel, and is carried out
Stop the operation of aerator after furnace purge operation, realize orderly shutdown；
(2) scram：
When low nitrogen combustion apparatus are in running, gaseous-pressure, cigarette wind initial pressure be below or above setting value or
When point rifle fire extinguishing, main fray-out of flame, gas leakage, PLC control automatic alarm equipment alarm, and it is automatically switched off each electricity
Magnet valve, cuts off fuel gas pipeline, closes aerator, stops burner operation, and is purged, realizes safely scram.
It should be pointed out that on the premise of without departing from basic structure of the present invention, some improvement and change can also be made, these
The similar technical scheme improved and change also should be regarded as the protection domain of this patent.
Claims (6)
1. a kind of cigarette wind premix restrains self cooling but low nitrogen combustion apparatus, it is characterised in that：It is provided with fuel gas pipeline, aerator (2), cigarette
The self cooling but low NO (1) of wind premix tube bank；Blower inlet is connected with cigarette wind blender (3), and blower export is connected with cigarette
Wind gas mixing pipe road (9)；The low NO is provided with windband (34), and main exhaust gas nozzle (35) is provided with windband, the main gas injection
Ring flange of the pipe through windband rear end, is fixedly installed in the middle of windband, is provided with the adjustable spinning disk in position in its front end periphery
(29) the mixed air cooling of a circle cigarette wind is provided with around main exhaust gas nozzle in windband, and restrains (28), the cigarette wind gas mixing pipe beam is uniformly arranged
Row are fixedly installed on the periphery of main exhaust gas nozzle, and port is in windband, logical with into the mixed gas phase of cigarette wind in windband thereafter, before which
Stretch in boiler (32) burner hearth at end；Mixed gas import (25) of cigarette wind is provided with windband；Stretch out windband in the main exhaust gas nozzle rear end
Outside ring flange (27), connect with big fire fuel gas pipeline (12) and small fire fuel gas pipeline (22) respectively, big fire fuel gas pipeline and little
Valve (14) and valve (15) are respectively equipped with fiery fuel gas pipeline；It is additionally provided with a little on the self cooling but low NO of cigarette wind premix tube bank
Firelock (26), burning torch are arranged on the outside of cigarette wind gas mixing pipe beam；Also stretch out windband ring flange (27) in the rear end of the burning torch
Outside, burning torch are provided with three interfaces, connect spark plug interface (4), igniting fuel gas pipeline (23) and by windband respectively
The igniting combustion supporting wind pipeline (24) that the mixed gas import of cigarette wind is drawn, is respectively equipped with valve on igniting fuel gas pipeline and igniting combustion supporting wind pipeline
Door (16) and valve (11), burning torch termination is provided with flame detector.
2. low nitrogen combustion apparatus according to claim 1, is characterized in that：The cigarette wind mixing of the blower inlet connection
Device is provided with air intlet and gas approach, and air intlet is communicated with air, and the flue (31) of gas approach connection boiler (32) draws
The smoke backflow pipeline (10) for going out；The smoke regulating valve (6) for adjusting flue gas flow is provided with the smoke backflow pipeline；Institute
The minimum point for stating smoke backflow pipeline and cigarette wind gas mixing pipe road is equipped with drain valve (5)；Extraction is provided with cigarette wind gas mixing pipe road
The mixed gas of cigarette wind is back to flue (31), and to adjust the mixed gas injection device (7) of cigarette wind initial pressure, the mixed gas injection device is provided with and draws
Air valve (8)；The aerator is provided with air blower control cabinet.
3. low nitrogen combustion apparatus according to claim 1 and 2, is characterized in that：The big fire fuel gas pipeline, small fire Gas Pipe
Road, igniting fuel gas pipeline are connected with the main combustible pipe road for arranging respectively, and main combustible pipe road is provided with manual modulation valve (17), double cuts
Power-off magnet valve (13) and gaseous-pressure switch (21).
4. low nitrogen combustion apparatus according to claim 3, is characterized in that：The big fire valve, small fire valve, igniting combustion gas
Valve, double cut-out electromagnetic valves are controllable electromagnetic valve, and smoke regulating valve is electric control valve, and the aerator sets VFC
Device, the electromagnetic valve, frequency-variable controller, flame detector carry out on-off control with the PLC for arranging respectively and are connected, PLC
Controller is provided with guidance panel.
5. low nitrogen combustion apparatus according to claim 4, is characterized in that：On the main combustible pipe road and smoke backflow pipeline
It is equipped with flow transducer and pressure transducer；Flame sensor is provided with burner hearth, temperature sensor is provided with flue, the stream
Quantity sensor, pressure transducer and temperature sensor are respectively carried out signal transmission and are connected with the PLC, are controlled in PLC
Device processed is provided with data memory module and data analysis module, and the pressure, flow to each pipeline carries out timing monitoring and data note
Address book stored, and being analyzed, runs the abnormal data for monitoring and arrange parameter not phase when finding wherein to have pipeline or burner hearth
Alarm signal is sent during symbol, it is when burner hearth is without flame, when gaseous-pressure, flue gas pressures are less than setting value, vertical while reporting to the police
Carve and close fuel gas pipeline, cigarette wind gas mixing pipe road.
6. the combustion method of low nitrogen combustion apparatus according to claim 5, is characterized in that comprising the steps：
1) start shooting：Electricity on PLC, guidance panel and air blower control cabinet, arranges combustion gas, the normal pressure value of the mixed gas of cigarette wind,
In 10-20kPa, burner operation is set to into igniting operation on guidance panel, it is ensured that smoke regulating valve is closed, starts drum
Fan operation；
2) fuel gas pipeline and cigarette wind gas mixing pipe road are opened：Regulating gas pressure 10-20kPa, opens what is arranged on combustion gas main pipeline
Manual modulation valve, combustion gas are entered in combustion gas main pipeline；The smoke regulating valve and aerator on smoke backflow pipe is opened, cigarette wind is mixed
Feed channel is opened, and the mixed gas of cigarette wind enters windband；
3) starting ignition process：Gas electromagnetic valve of lighting a fire on gas ignition branch road is opened, igniting fuel gas pipeline is passed through combustion gas, opens
Igniting mixed pneumoelectric magnet valv, ignition transformer sparking light burning torch, burning torch operation；
4) ignition process success：After burning torch operation, PLC opens small fire gas electromagnetic valve；Combustion gas, mixed gas enter windband
With bundled tube combustion head, burning torch lights small fire, after Fike detector detects small fire operation, is considered as and lights a fire successfully, ignition process
Terminate, proceed to step 6)；
5) loss of ignition：In ignition process, Fike detector is not detected by small fire run signal, that is, be considered as loss of ignition；PLC is controlled
All electromagnetic valves are closed in device control, are cut off natural gas supply, and are started alarm equipment alarm；Aerator purging burner hearth 5 minutes, then
3) return to step, restarts igniting process；
6) it is normal to run：After igniting success, 10-20 minutes are run in small fire gear, big fire combustion gas electricity is opened by guidance panel
Burner operation is set to big fire gear by magnet valve, and smoke regulating valve is opened, while opening drawing on the mixed gas injection pipeline of cigarette wind
Air valve, burner enter normal operation.
7) parking step：(1) orderly shutdown：
Flame-out button, PLC control automatic self-closing gas pipeline solenoid are clicked on guidance panel, and carries out burner hearth
Stop the operation of aerator after purging operation, realize orderly shutdown；
(2) scram：
When low nitrogen combustion apparatus are in running, gaseous-pressure, cigarette wind initial pressure are below or above setting value or point rifle
When fire extinguishing, main fray-out of flame, gas leakage, PLC control automatic alarm equipment alarm, and it is automatically switched off each electromagnetism
Valve, cuts off fuel gas pipeline, closes aerator, stops burner operation, and is purged, realizes safely scram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100612.3A CN106594716B (en) | 2016-12-05 | 2016-12-05 | A kind of cigarette wind premix restrains self cooling but low nitrogen combustion apparatus and its combustion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611100612.3A CN106594716B (en) | 2016-12-05 | 2016-12-05 | A kind of cigarette wind premix restrains self cooling but low nitrogen combustion apparatus and its combustion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594716A true CN106594716A (en) | 2017-04-26 |
| CN106594716B CN106594716B (en) | 2018-11-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592647A (en) * | 2018-05-11 | 2018-09-28 | 河南幔利橡树自动化科技技术有限公司 | A kind of carbon baking furnace automatically controlled and its control method |
| CN108913859A (en) * | 2018-07-03 | 2018-11-30 | 苏州中门子工业炉科技有限公司 | The application of DX atmosphere heat treatment furnace and high temperature alloy steel, high-carbon steel heat treatment |
| CN110319441A (en) * | 2019-08-01 | 2019-10-11 | 南阳市中通防爆电机电器有限公司 | A kind of super low NO |
| CN112066407A (en) * | 2020-09-11 | 2020-12-11 | 富士特锅炉(天津)有限公司 | Tangential diffusion coupling flue gas extrinsic cycle multi-element adjustable low-nitrogen combustion equipment |
| CN112128739A (en) * | 2020-09-11 | 2020-12-25 | 富士特锅炉(天津)有限公司 | Tangential rotational flow diffusion coupling flue gas external circulation low-nitrogen combustion equipment |
| CN112611110A (en) * | 2020-12-22 | 2021-04-06 | 中冶南方（武汉）热工有限公司 | Full-automatic high-safety low-nitrogen hot air heating combustion system and operation method thereof |
| CN114055841A (en) * | 2021-12-03 | 2022-02-18 | 上海赛科利汽车模具技术应用有限公司 | High-speed press restarting method and system and high-speed press |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009204285A (en) * | 2008-02-29 | 2009-09-10 | Electric Power Dev Co Ltd | Burner and its operation method |
| CN102721058A (en) * | 2012-06-26 | 2012-10-10 | 上海华之邦能源科技有限公司 | Gas burner with low NOX |
| CN103088178A (en) * | 2013-03-04 | 2013-05-08 | 江苏沙钢集团有限公司 | Blast furnace hot-blast stove flue gas self-circulation combustion method and system |
| CN203052646U (en) * | 2012-11-27 | 2013-07-10 | 东方电气集团东方锅炉股份有限公司 | Combustion system of heavy oil fired boiler |
| CN204268475U (en) * | 2014-11-28 | 2015-04-15 | 桑德环境资源股份有限公司 | Domestic waste incineration gas burner system |
| CN204648216U (en) * | 2015-02-13 | 2015-09-16 | 广东碳中和能源开发有限公司 | A kind of Problem of Biomass Fuel Gas Combustion installment with UTILIZATION OF VESIDUAL HEAT IN |
| CN205174368U (en) * | 2015-10-15 | 2016-04-20 | 陕西宏远燃气设备有限责任公司 | Reborner nozzle with cooling function |
| CN206600792U (en) * | 2017-02-27 | 2017-10-31 | 王立臣 | A kind of self cooling but low nitrogen combustion apparatus of smoke and gas premix tube bank |
-
2016
- 2016-12-05 CN CN201611100612.3A patent/CN106594716B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009204285A (en) * | 2008-02-29 | 2009-09-10 | Electric Power Dev Co Ltd | Burner and its operation method |
| CN102721058A (en) * | 2012-06-26 | 2012-10-10 | 上海华之邦能源科技有限公司 | Gas burner with low NOX |
| CN203052646U (en) * | 2012-11-27 | 2013-07-10 | 东方电气集团东方锅炉股份有限公司 | Combustion system of heavy oil fired boiler |
| CN103088178A (en) * | 2013-03-04 | 2013-05-08 | 江苏沙钢集团有限公司 | Blast furnace hot-blast stove flue gas self-circulation combustion method and system |
| CN204268475U (en) * | 2014-11-28 | 2015-04-15 | 桑德环境资源股份有限公司 | Domestic waste incineration gas burner system |
| CN204648216U (en) * | 2015-02-13 | 2015-09-16 | 广东碳中和能源开发有限公司 | A kind of Problem of Biomass Fuel Gas Combustion installment with UTILIZATION OF VESIDUAL HEAT IN |
| CN205174368U (en) * | 2015-10-15 | 2016-04-20 | 陕西宏远燃气设备有限责任公司 | Reborner nozzle with cooling function |
| CN206600792U (en) * | 2017-02-27 | 2017-10-31 | 王立臣 | A kind of self cooling but low nitrogen combustion apparatus of smoke and gas premix tube bank |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592647A (en) * | 2018-05-11 | 2018-09-28 | 河南幔利橡树自动化科技技术有限公司 | A kind of carbon baking furnace automatically controlled and its control method |
| CN108592647B (en) * | 2018-05-11 | 2023-12-01 | 河南幔利橡树自动化科技技术有限公司 | Automatic control carbon roasting furnace and control method thereof |
| CN108913859A (en) * | 2018-07-03 | 2018-11-30 | 苏州中门子工业炉科技有限公司 | The application of DX atmosphere heat treatment furnace and high temperature alloy steel, high-carbon steel heat treatment |
| CN108913859B (en) * | 2018-07-03 | 2023-11-28 | 苏州中门子工业炉科技有限公司 | DX atmosphere heat treatment furnace and application of high isothermal alloy steel and high carbon steel heat treatment |
| CN110319441A (en) * | 2019-08-01 | 2019-10-11 | 南阳市中通防爆电机电器有限公司 | A kind of super low NO |
| CN112066407A (en) * | 2020-09-11 | 2020-12-11 | 富士特锅炉(天津)有限公司 | Tangential diffusion coupling flue gas extrinsic cycle multi-element adjustable low-nitrogen combustion equipment |
| CN112128739A (en) * | 2020-09-11 | 2020-12-25 | 富士特锅炉(天津)有限公司 | Tangential rotational flow diffusion coupling flue gas external circulation low-nitrogen combustion equipment |
| CN112611110A (en) * | 2020-12-22 | 2021-04-06 | 中冶南方（武汉）热工有限公司 | Full-automatic high-safety low-nitrogen hot air heating combustion system and operation method thereof |
| CN114055841A (en) * | 2021-12-03 | 2022-02-18 | 上海赛科利汽车模具技术应用有限公司 | High-speed press restarting method and system and high-speed press |
| CN114055841B (en) * | 2021-12-03 | 2024-01-19 | 上海赛科利汽车模具技术应用有限公司 | Restarting method and restarting system of high-speed press and high-speed press |
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