CN109185922A - A kind of coal-burning boiler ignition system - Google Patents
A kind of coal-burning boiler ignition system Download PDFInfo
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- CN109185922A CN109185922A CN201811014109.5A CN201811014109A CN109185922A CN 109185922 A CN109185922 A CN 109185922A CN 201811014109 A CN201811014109 A CN 201811014109A CN 109185922 A CN109185922 A CN 109185922A
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- coal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q13/00—Igniters not otherwise provided for
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention provides a kind of coal-burning boiler ignition system, including torch oil gun, torch oil gun is equipped with fuel inlet port, combustion air input terminal, air input, fuel inlet port is connected to by cartridge with input fuel, combustion air input terminal passes sequentially through combustion tube, warm wind unit is connected to input combustion air, and air input passes through tracheae and input compressed air communication.Using technical solution of the present invention, there is when igniting by being sent into the combustion air of higher temperature, fuel powder is set to be easier to light, and in the moment that fuel powder is lighted, the full combustion under the combustion-supporting effect of high temperature combustion supporting air, it releases compared to the more thermal energy of traditional method of ignition and starting up, to improve fuel efficiency, save fuel, stable operating status is maintained after making boiler startup, and it is easy to operate, make boiler can adapt to meet the demand being adjusted according to daily load difference in frequent start and stop.
Description
Technical field
The invention belongs to generating equipment technical field more particularly to coal-burning boiler ignition systems.
Background technique
Thermal power generation is the thermal energy generated using combustible in burning, is converted into the one of electric energy by generation power device
Kind of generation mode, currently, most thermal power plants generally use fire coal as fuel, still, it is coal-fired be used as fuel due to
Its universal attention that there is insufficient, heavy-polluted problem that is generating after burning of burning to have caused people, in recent years, China's phase
After a series of policies for having formulated improvement thermal power plant pollution problems.Therefore, for thermal power plant, energy saving drop is taken
It is imperative to promote fired coal combustion efficiency for the measure of consumption.Find that generating set starts fortune every time in thermal power plant by investigation
Required fuel is often more when row, with rising steadily for burned coal price, has been unfavorable for the sustainable development in thermal power plant,
Due at present round the clock between generating set load it is different, thermal power plant generating set is had to frequent start and stop, certainly will be increased
Fuel consumption when thermal power generation unit starts, and fuel burning when thermal power generation unit starts is extremely insufficient, to ring
Pollution effect caused by border is also very big.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of coal-burning boiler ignition systems.
The present invention is achieved by the following technical programs.
The present invention provides a kind of coal-burning boiler ignition system, including torch oil gun, and the torch oil gun is inputted equipped with fuel
End, combustion air input terminal, air input, the fuel inlet port are connected to by cartridge with input fuel, the combustion air
Input terminal passes sequentially through combustion tube, warm wind unit is connected to input combustion air, and the air input is pressed by tracheae and input
Contracting air communication.
Temperature when the input combustion air flows to the combustion air input terminal is 150 DEG C or more.
The input fuel is the mixture of coal and oil.
The torch oil gun quantity be it is multiple, be respectively arranged in coal-burning boiler burner hearth surrounding corner.
The total door of purging, purging manually operated door, purging check are connected in turn along compressed air flowing direction on the tracheae
Door, purging regulating valve.
It is also connected to by purge solenoid valve with cartridge between the purging non-return flap and purging regulating valve.
The warm wind unit includes steam air heater, and the steam air heater passes through bypass input pipe respectively and enters with coal pulverizer hot air duct
It is connected at mouthful, is connected to by bypassing efferent duct with coal pulverizer hot air duct exit, is connected to by steam source pipe with auxiliary vapour header.
The steam air heater is also connected to by drain pipe with trench, steam trap respectively.
The input compressed air pressure is 0.5MPa~0.7MPa.
The combustion-supporting wind pressure of input is 0.8kPa~1.0kPa.
The beneficial effects of the present invention are: technical solution of the present invention is used, boiler is lighted a fire from the state of cooling up to full negative
In the overall process of lotus starting operation, is lighted a fire by torch oil gun, there is when igniting the combustion air of higher temperature by being sent into,
The moment for making fuel powder be easier to light, and lighting in fuel powder sufficiently fires under the combustion-supporting effect of high temperature combustion supporting air
It burns, releases compared to traditional more thermal energy of method of ignition and starting up, to improve fuel efficiency, save fuel, and
Under the input of lasting high temperature combustion supporting air, boiler is made to maintain stable operating status after actuation, is with 600MW generating set
Example, using traditional sparking mode, the fuel consumed when igniting starting every time is about 40 tons~50 tons, and uses skill of the invention
After art scheme, the fuel consumed when igniting starting every time is only 8 tons~9 tons, and after igniting starting operation, fuel is more
Sufficiently, compared with prior art, average to save 1.5 tons of fuel per hour, saving fuel effect is significant and easy to operate, makes pot
Furnace can adapt to meet the demand being adjusted according to daily load difference in frequent start and stop.
Detailed description of the invention
Fig. 1 is coal-burning boiler ignition system structural schematic diagram of the present invention；
Fig. 2 is warm wind cellular construction schematic diagram of the present invention.
In figure: 1- torch oil gun, 2- cartridge, 3- combustion tube, 4- warm wind unit, 5- tracheae, 6- oil inlet manually operated door, 7-
Oil inlet solenoid valve, 8- fuel oil feed regulation valve, the total door of 9- combustion air, the total electrically operated gate of 10- combustion air, 11- purge total door, and 12- purges hand
Dynamic door, 13- purge non-return flap, and 14- purges regulating valve, 15- purge solenoid valve, 16- steam air heater, 17- bypass input pipe, 18- mill
Coal machine hot air duct, 19- bypass efferent duct, 20- steam source pipe, the auxiliary vapour header of 21-, 22- drain pipe, 23- bypass air duct quick closing valve
Door, 24- bypass air duct electrically operated gate, and for 25- into the total door of vapour, 26- heats steam electrically operated gate, and 27- heats steam by-pass door.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1 and Figure 2, the present invention provides a kind of coal-burning boiler ignition system, including torch oil gun 1, torch oil gun 1
Equipped with fuel inlet port, combustion air input terminal, air input, fuel inlet port is connected to by cartridge 2 with input fuel, is helped
Combustion wind input terminal passes sequentially through combustion tube 3, warm wind unit 4 is connected to input combustion air, and air input passes through tracheae 5 and input
Compressed air communication.
Using technical solution of the present invention, boiler is lighted a fire from the state of cooling up in the overall process for starting operation at full capacity,
It is lighted a fire by torch oil gun, there is when igniting the combustion air of higher temperature by being sent into, fuel powder is made to be easier to light,
And in the moment that fuel powder is lighted, the full combustion under the combustion-supporting effect of high temperature combustion supporting air is released compared to tradition igniting
The more thermal energy of Starting mode save fuel, and in the input of lasting high temperature combustion supporting air to improve fuel efficiency
Under, so that boiler is maintained stable operating status after actuation, by taking 600MW generating set as an example, using traditional sparking mode, often
The fuel consumed when secondary igniting starting is about 40 tons~50 tons, and after using technical solution of the present invention, igniting starting every time
When the fuel that consumes be only 8 tons~9 tons, and after igniting starting operation, fuel is more abundant, compared with prior art, average
1.5 tons of fuel are saved per hour, saving fuel effect is significant and easy to operate, and can adapt to boiler in frequent start and stop,
Meet the demand being adjusted according to daily load difference.
Further, temperature when input combustion air flows to combustion air input terminal is 150 DEG C or more.Input fuel is coal
With the mixture of oil.1 quantity of torch oil gun be it is multiple, be respectively arranged in coal-burning boiler burner hearth surrounding corner.Using the present invention
Technical solution, according to calculating, every 1 exit of torch oil gun is contributed up to 0.2t~0.3t, and the mixing for meeting coal and oil is fired
Expect clean-burning demand at high temperature under high pressure.
Further, on cartridge 2 along fuel flowing direction be connected in turn oil inlet manually operated door 6, oil inlet solenoid valve 7,
Fuel oil feed regulation valve 8.The total door 9 of combustion air, the total electrically operated gate of combustion air are connected in turn along combustion air flow direction on combustion tube 3
10.On tracheae 5 along compressed air flowing direction be connected in turn the total door 11 of purging, purging manually operated door 12, purging non-return flap 13,
Purge regulating valve 14.It is also connected to by purge solenoid valve 15 with cartridge 2 between purging non-return flap 13 and purging regulating valve 14.It adopts
With technical solution of the present invention, it is convenient to the pressure for inputting combustion air, input compressed air be adjusted, specific kerosene
Operating process when rifle is lighted a fire is as follows:
Step 1: checking whether confirmation torch oil gun meets operating condition；
Step 2: adjusting fuel oil feed regulation valve 8, purging regulating valve 14, make to input compressed air pressure range are as follows: 0.5~
0.7MPa；
Step 3: closing torch oil gun oil inlet solenoid valve 7；
Step 4: closing torch oil gun purge solenoid valve 15；
Step 5: adjusting the total door 9 of combustion air, the total electrically operated gate 10 of combustion air, make to input combustion air pressure limit are as follows: 0.8~
1.0KPa；
Step 6: opening purging manually operated door 12；
Step 7: being switched to " distant place/on the spot " switching switch " on the spot " on torch oil gun on-site control；
Step 8: pressing " burning torch into " button on on-site control, check that indicator light is bright；
Step 9: pressing " ignition operation " button on on-site control, check that indicator light is bright；
Step 10: pressing " oil valve is opened " button on on-site control, check that indicator light is bright；
Step 11: if receiving fire inspection signal in 15 seconds, kindling state is checked, if kindling is in good condition,
" burning torch moves back " button is then pressed on on-site control, exits torch oil gun, operation terminates.
Further, warm wind unit 4 includes steam air heater 16, and steam air heater 16 passes through bypass input pipe 17 and coal pulverizer heat respectively
The connection of 18 inlet of wind air duct is connected to, by steam source pipe 20 by bypassing efferent duct 19 with 18 exit of coal pulverizer hot air duct
It is connected to auxiliary vapour header 21.Steam air heater 16 is also connected to by drain pipe 22 with trench, steam trap respectively.It is dirty caused by burning
Dye object has carried out the discharge of technology, avoids pollution environment.
Further, on bypass input pipe 17 along air current flow direction be disposed with bypass air duct close the door 23 fastly, it is other
Transportation work style road electrically operated gate 24.Bypass air duct, which is disposed with, along air current flow direction on bypass efferent duct 19 closes the door 23 fastly.Vapour source
The heating steam electrically operated gate 26 being connected in series into 25, three, the total door of vapour is disposed on pipe 20 along air current flow direction.Vapour
Heating steam by-pass door 27 is also connected on source capsule 20, the both ends of heating steam by-pass door 27 are connected in parallel in three series connection respectively
The both ends of the heating steam electrically operated gate 26 of connection.Input compressed air pressure is 0.5MPa~0.7MPa.Input combustion-supporting wind pressure
For 0.8kPa~1.0kPa.Using technical solution of the present invention, the high temperature input combustion air used needed for ignition operation is directly taken
With coal pulverizer hot air duct 18, operation is greatly facilitated, ignition system improvement cost is reduced, improves Business Economic Benefit.
Claims (10)
1. a kind of coal-burning boiler ignition system, it is characterised in that: including torch oil gun (1), the torch oil gun (1) is equipped with fuel
Input terminal, combustion air input terminal, air input, the fuel inlet port is connected to by cartridge (2) with input fuel, described
Combustion air input terminal passes sequentially through combustion tube (3), warm wind unit (4) is connected to input combustion air, and the air input passes through
Tracheae (5) and input compressed air communication.
2. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the input combustion air flows to described combustion-supporting
Temperature when wind input terminal is 150 DEG C or more.
3. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the input fuel is the mixing of coal and oil
Object.
4. coal-burning boiler ignition system as described in claim 1, it is characterised in that: torch oil gun (1) quantity be it is multiple,
It is respectively arranged in coal-burning boiler burner hearth surrounding corner.
5. coal-burning boiler ignition system as described in claim 1, it is characterised in that: along compressed air on the tracheae (5)
Flow direction is connected with the total door (11) of purging, purging manually operated door (12), purging non-return flap (13), purging regulating valve (14) in turn.
6. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the purging non-return flap (13) and purging are adjusted
It is also connected to by purge solenoid valve (15) with cartridge (2) between section valve (14).
7. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the warm wind unit (4) includes steam air heater
(16), the steam air heater (16) is connected to coal pulverizer hot air duct (18) inlet, is passed through by bypass input pipe (17) respectively
Bypass efferent duct (19) is connected to coal pulverizer hot air duct (18) exit, is connected by steam source pipe (20) and auxiliary vapour header (21)
It is logical.
8. coal-burning boiler ignition system as claimed in claim 9, it is characterised in that: the steam air heater (16) is also respectively by dredging
Water pipe (22) is connected to trench, steam trap.
9. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the input compressed air pressure is 0.5MPa
~0.7MPa.
10. coal-burning boiler ignition system as described in claim 1, it is characterised in that: the combustion-supporting wind pressure of input is 0.8kPa
~1.0kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014109.5A CN109185922A (en) | 2018-08-31 | 2018-08-31 | A kind of coal-burning boiler ignition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811014109.5A CN109185922A (en) | 2018-08-31 | 2018-08-31 | A kind of coal-burning boiler ignition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185922A true CN109185922A (en) | 2019-01-11 |
Family
ID=64917313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811014109.5A Pending CN109185922A (en) | 2018-08-31 | 2018-08-31 | A kind of coal-burning boiler ignition system |
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| Country | Link |
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| CN (1) | CN109185922A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906366Y (en) * | 2006-04-29 | 2007-05-30 | 段志雄 | Gasification oil-saving small oil gun of boiler |
| CN202692129U (en) * | 2012-07-20 | 2013-01-23 | 甘肃大唐国际连城发电有限责任公司 | Oil gun igniting system for boilers of thermal power plant |
| CN103486580B (en) * | 2013-10-15 | 2015-12-23 | 山东英电节能科技有限公司 | Tiny-oil ignition oxygenation combustion energy conservation system |
| CN107166383A (en) * | 2017-06-29 | 2017-09-15 | 大唐贵州兴仁发电有限公司 | A kind of oxygen-enriched few-oil ignition system of boiler |
-
2018
- 2018-08-31 CN CN201811014109.5A patent/CN109185922A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2906366Y (en) * | 2006-04-29 | 2007-05-30 | 段志雄 | Gasification oil-saving small oil gun of boiler |
| CN202692129U (en) * | 2012-07-20 | 2013-01-23 | 甘肃大唐国际连城发电有限责任公司 | Oil gun igniting system for boilers of thermal power plant |
| CN103486580B (en) * | 2013-10-15 | 2015-12-23 | 山东英电节能科技有限公司 | Tiny-oil ignition oxygenation combustion energy conservation system |
| CN107166383A (en) * | 2017-06-29 | 2017-09-15 | 大唐贵州兴仁发电有限公司 | A kind of oxygen-enriched few-oil ignition system of boiler |
Non-Patent Citations (1)
| Title |
|---|
| 郝剑: "郝剑", 《发电设备》 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |
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| RJ01 | Rejection of invention patent application after publication |