CN106051746A - Power plant coal-fired boiler system combining oxygen-enriched combustion mode - Google Patents
Power plant coal-fired boiler system combining oxygen-enriched combustion mode Download PDFInfo
- Publication number
- CN106051746A CN106051746A CN201610479573.6A CN201610479573A CN106051746A CN 106051746 A CN106051746 A CN 106051746A CN 201610479573 A CN201610479573 A CN 201610479573A CN 106051746 A CN106051746 A CN 106051746A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- valve
- flue gas
- power plant
- coal
- 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.)
- Granted
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
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- 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
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/07005—Injecting pure oxygen or oxygen enriched air
-
- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/07006—Control of the oxygen supply
-
- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a power plant coal-fired boiler system combining an oxygen-enriched combustion mode. The system comprises an air separation device and a liquid-state oxygen storage device which communicate with an oxygen inlet; a first valve is arranged between a denitration device and an air preheater; the two ends of the air preheater are connected with a heat exchange device in parallel through a second valve and a third valve correspondingly; the third end of a desulfurization device is connected with the first end of a drier through a fifth valve; the second end of the dryer is provided with a first branch pipeline and a second branch pipeline; the first branch pipeline is connected to the desulfurization device through a fourth valve; the second branch pipeline is connected with a recirculation smoke inlet of the heat exchange device; and a carbon dioxide compression device is connected to the third end of the dryer. The above system can efficiently trap carbon dioxide and relieve the greenhouse effect, can also be switched into a conventional air combustion mode when an air separation system breaks down, and guarantees safe and effective running of a boiler.
Description
Technical field
The invention belongs to technical field of power generation, particularly relate to a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently
System.
Background technology
Along with warming of global climate, greenhouse effect the environmental problem caused causes the common concern of international various countries.
Wherein, coal fired power generation is the main source of carbon dioxide, and oxygen-enriched combustion technology can effectively reduce the discharge of carbon dioxide, institute
With, coal-burning boiler is carried out local oxygen-enriched combusting transformation, reclaims carbon dioxide, it is possible to alleviate greenhouse effect.
For oxygen-enriched combusting, scholar has carried out substantial amounts of research and has pointed out: in the case of oxygen-enriched, concentration be 30% oxygen permissible
Obtain the ignition temperature close with air burning mode and identical heat, and without interruption for oxygen of air-seperation system
And the varying duty ability of boiler is the key issue affecting oxygen-enriched combustion technology.But, not for electricity in prior art
The precedent of the oxygen-enriched combusting transformation of factory's coal-burning boiler.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, both
Can efficiently trap carbon dioxide, alleviate greenhouse effect, regular air combustion can be switched to again when air-seperation system breaks down
Burning pattern, it is ensured that the safe and effective operation of boiler.
A kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, including burner hearth, described burner hearth has oxygen intake
And be connected with fuel pulverizing plant, there is in described burner hearth economizer, described economizer is connected with the first end of denitrification apparatus, described de-
Second end of nitre device is connected with the first end of air preheater, and the second end of described air preheater connects the first of cleaner unit
End, the second end of described cleaner unit connects the first end of desulfurizer, and the second end of described desulfurizer is connected to chimney, also wraps
Including the air-separating plant connected with described oxygen intake and liquid oxygen storage device, described denitrification apparatus is pre-with described air
Being provided with the first valve between hot device, the two ends of described air preheater are changed by the second valve and the 3rd valve in parallel respectively
Thermal, the 3rd end of described desulfurizer is connected by the 5th valve the first end of exsiccator, the second of described exsiccator
End has the first lateral and the second lateral, and described first lateral utilizes the 4th valve to be connected to described desulfurization dress
Putting, described second lateral is connected with the flue gas recycled entrance of described heat-exchanger rig, the recirculation cigarette of described heat-exchanger rig
Gas outlet connection has the first flue gas recycled pipeline and the second flue gas recycled pipeline, described first flue gas recycled pipeline to connect
To described oxygen intake, described second flue gas recycled pipeline is connected to described fuel pulverizing plant, and the 3rd end of described exsiccator is even
It is connected to pressurized carbon dioxide compression apparatus, between the second end and the described chimney of described desulfurizer, is provided with the 6th valve.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, the second end of described exsiccator
It is provided with flue gas flow monitoring device and the oxygen content detector that the oxygen content in flue gas is detected.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, arrange at described oxygen intake
Have for controlling the effusion meter that oxygen accounts for the 28% to 32% of mixed gas total amount.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, described liquid oxygen stores dress
Put and Pressure gauge and air relief valve are installed.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, the worksheet of described exsiccator
Face is provided with aluminium lamination.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, described air-separating plant and
It is detachable connection between described liquid oxygen storage device and described oxygen intake.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, described desulfurizer is arranged
Having the lime stone slurry for sulfur dioxide absorption, the flue gas in the first lateral of described exsiccator is used for aoxidizing described stone
Lime stone serosity.
Preferably, in the above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, described exsiccator and described
Flue between two flue gas recycled pipelines is multi-channel parallel pipeline.
The above-mentioned coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the present invention provides, owing to including and described oxygen
The air-separating plant of entrance connection and liquid oxygen storage device, arranged between described denitrification apparatus and described air preheater
Having the first valve, there is heat-exchanger rig at the two ends of described air preheater by the second valve and the 3rd valve in parallel respectively, described
3rd end of desulfurizer is connected by the 5th valve the first end of exsiccator, and the second end of described exsiccator has first point
Branch pipe(tube) and the second lateral, described first lateral utilizes the 4th valve to be connected to described desulfurizer, and described second
Lateral is connected with the flue gas recycled entrance of described heat-exchanger rig, and the flue gas recycled outlet connection of described heat-exchanger rig has
First flue gas recycled pipeline and the second flue gas recycled pipeline, described first flue gas recycled pipeline is connected to described oxygen and enters
Mouthful, described second flue gas recycled pipeline is connected to described fuel pulverizing plant, and the three-terminal link of described exsiccator has carbon dioxide
Compressor, is provided with the 6th valve between the second end and the described chimney of described desulfurizer, when closing the first valve and
Six valves and open the second valve, the 3rd valve, the 4th valve and be capable of oxygen-enriched combusting during five valves, and when unlatching the
Regular air burning is realized when one valve and the 6th valve and closedown the second valve, the 3rd valve, the 4th valve and five valves
Pattern, it is seen that this system can efficiently trap carbon dioxide, alleviates greenhouse effect, can break down at air-seperation system again
Time switch to regular air combustion mode, it is ensured that the safe and effective operation of boiler.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
Fig. 1 provide for the embodiment of the present application the first have the signal of coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently
Figure.
Detailed description of the invention
The core concept of the present invention is to provide a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, Ji Nenggao
Effect trapping carbon dioxide, alleviates greenhouse effect, can switch to again regular air burning mould when air-seperation system breaks down
Formula, it is ensured that the safe and effective operation of boiler.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the present application provide the first have concurrently oxygen-enriched combusting pattern coal-fired boiler in power plant system as it is shown in figure 1,
Fig. 1 provide for the embodiment of the present application the first have the schematic diagram of coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently.This is
System includes that burner hearth 1, described burner hearth 1 have oxygen intake 2 and be connected with fuel pulverizing plant 3, has economizer 4, institute in described burner hearth 1
Stating economizer 4 to be connected with the first end of denitrification apparatus 5, the second end of described denitrification apparatus 5 connects with the first end of air preheater 6
Connecing, the second end of described air preheater 6 connects the first end of cleaner unit 7, and the second end of described cleaner unit 7 connects desulfurizer
First end of 8, the second end of described desulfurizer 8 is connected to chimney 9, also includes that the air connected with described oxygen intake 2 divides
From device 10 and liquid oxygen storage device 11, described liquid oxygen storage device 11 is for becoming for hypoxgia and boiler continuously
Additionally supplement required oxygen during load, between described denitrification apparatus 5 and described air preheater 6, be provided with the first valve 12, institute
The two ends stating air preheater 6 are parallel with heat-exchanger rig 15 by the second valve 13 and the 3rd valve 14 respectively, fill through heat exchange
Putting the flue gas recycled temperature after 15 heat exchange at 250 DEG C～280 DEG C, the 3rd end of described desulfurizer 8 passes through the 5th valve 15
Connecting the first end having exsiccator 16, the second end of described exsiccator 16 has the first lateral 17 and the second lateral
18, described first lateral 17 utilizes the 4th valve 19 to be connected to described desulfurizer 8, described second lateral 18 and institute
The flue gas recycled entrance stating heat-exchanger rig 15 connects, and the flue gas recycled outlet connection of described heat-exchanger rig 15 has first to follow again
Ring flue 20 and the second flue gas recycled pipeline 21, described first flue gas recycled pipeline 20 is connected to described oxygen intake
2, described second flue gas recycled pipeline 21 is connected to described fuel pulverizing plant 3, and the three-terminal link of described exsiccator 16 has dioxy
Change carbon pressure compression apparatus 22, between the second end and the described chimney 9 of described desulfurizer 8, be provided with the 6th valve 23.
When above-mentioned air-separating plant is out of service, carry out regular air burning.Now, the second valve, the 3rd valve,
4th valve and the 5th valve closing, the first valve and the 6th valve are opened, and boiler runs according to regular air combustion system.By
Fuel pulverizing plant 3 provides coal dust to boiler, and flue gas flows through each heating surface, economizer 4, denitrification apparatus 5, air preheater 6 successively, removes
Dirt device 7, desulfurizer 8, finally flow to chimney 9, and row is to high-altitude；
When air-separating plant is properly functioning, carry out is oxygen-enriched combusting.Now, the second valve, the 3rd valve, the 4th
Valve and the 5th valve are opened, the first valve and the 6th valve closing, carry out oxygen-enriched combusting.Outside a whole set of steam generator system
Air-separating plant 10 a large amount of oxygen needed for oxygen-enriched combusting are provided, without interruption at oxygen of liquid oxygen storage device 11
Extra required oxygen is provided during the varying duty of not enough and boiler.Oxygen and the first strand of recirculation cigarette come from heat-exchanger rig 15 stream
Flowing to burner as secondary wind after gas mixing, the second strand of flue gas recycled come from heat exchanger 15 stream carries system as First air
Coal dust in powder device 3 enters burner hearth 1 and burns, and flue gas flows through each heating surface, economizer 4, denitrification apparatus 5, heat-exchanger rig successively
15, cleaner unit 7, desulfurizer 8 and exsiccator 16, is divided into 2 parts the flue gas after exsiccator 16, is partly into desulfurizer
8, for oxidative absorption SO2After lime stone slurry, another part as flue gas recycled enter heat-exchanger rig 15 heat, adding
Flue gas recycled after heat is divided into first strand of flue gas recycled and second strand of flue gas recycled, is respectively intended to and oxygen mix and taking
Band coal dust sends into burner.Oxidative absorption SO2After the flue gas of lime stone slurry flow into again exsiccator 16, this partial fume is entered
Row compression, recovery CO2, and transport as industrial use.
The embodiment of the present application provide above-mentioned the first have the coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently, due to bag
Including the air-separating plant connected with described oxygen intake and liquid oxygen storage device, described denitrification apparatus is pre-with described air
Being provided with the first valve between hot device, the two ends of described air preheater are changed by the second valve and the 3rd valve in parallel respectively
Thermal, the 3rd end of described desulfurizer is connected by the 5th valve the first end of exsiccator, the second of described exsiccator
End has the first lateral and the second lateral, and described first lateral utilizes the 4th valve to be connected to described desulfurization dress
Putting, described second lateral is connected with the flue gas recycled entrance of described heat-exchanger rig, the recirculation cigarette of described heat-exchanger rig
Gas outlet connection has the first flue gas recycled pipeline and the second flue gas recycled pipeline, described first flue gas recycled pipeline to connect
To described oxygen intake, described second flue gas recycled pipeline is connected to described fuel pulverizing plant, and the 3rd end of described exsiccator is even
It is connected to pressurized carbon dioxide compression apparatus, is provided with the 6th valve between the second end and the described chimney of described desulfurizer, works as closedown
It is capable of oxygen-enriched combustion when the first valve and the 6th valve and unlatching the second valve, the 3rd valve, the 4th valve and five valves
Burn, and realize when opening the first valve and the 6th valve and closing the second valve, the 3rd valve, the 4th valve and five valves
Regular air combustion mode, it is seen that this system can efficiently trap carbon dioxide, alleviates greenhouse effect, can separate at air again
Regular air combustion mode is switched to, it is ensured that the safe and effective operation of boiler during system malfunctions.
The second that the embodiment of the present application provides has the coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently, is above-mentioned the
On the basis of a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, also include following technical characteristic:
With continued reference to Fig. 1, the second end of described exsiccator 16 is provided with flue gas flow monitoring device and to the oxygen in flue gas
Content carries out the oxygen content detector 24 detected.The two device is used to control the ratio of flue gas recycled, wherein, is used for
The flue gas ratio of recirculation is depending on the oxygen content in flue gas, it is however generally that, the flue gas of 65% to 85% is used for recirculation, residue
Flue gas be used for oxidative absorption SO2After lime stone slurry.
The embodiment of the present application provide the third have the coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently, be above-mentioned the
On the basis of a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, also include following technical characteristic:
It is provided with at described oxygen intake for controlling the effusion meter that oxygen accounts for the 28% to 32% of mixed gas total amount.This
The oxygen of the ratio of kind is the essential condition of oxygen-enriched combusting, can set this oxygen the most accurately hence with an effusion meter
Ratio.
The 4th kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the embodiment of the present application provides, is above-mentioned the
On the basis of a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, also include following technical characteristic:
On described liquid oxygen storage device, Pressure gauge and air relief valve are installed, are used for ensureing the safety of system.
The 5th kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the embodiment of the present application provides, is above-mentioned the
On the basis of two kinds have the coal-fired boiler in power plant system of oxygen-enriched combusting pattern concurrently, also include following technical characteristic:
The working surface of described exsiccator is provided with aluminium lamination, thus improves the corrosion resistance of exsiccator work surface.
The 6th kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the embodiment of the present application provides, is above-mentioned the
In a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern to the 5th kind concurrently on the basis of any one, also include following technology
Feature:
It is detachable between described air-separating plant and described liquid oxygen storage device and described oxygen intake
Connect.It is to say, set up air-separating plant and liquid oxygen storage device independent of outside a whole set of steam generator system, it is provided that rich
A large amount of oxygen needed for oxygen burning, solve the deficiency without interruption of oxygen and limited in one's ability the asking of varying duty of boiler simultaneously
Topic, and when air-seperation system breaks down, run regular air combustion system.
The 7th kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the embodiment of the present application provides, is above-mentioned the
In a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern to the 5th kind concurrently on the basis of any one, also include following technology
Feature:
Described desulfurizer is provided with the lime stone slurry for sulfur dioxide absorption, the first branch of described exsiccator
Flue gas in pipeline is used for aoxidizing described lime stone slurry.The oxygen in flue gas recycled is utilized to carry out oxidative absorption SO2After stone
Lime stone serosity, this avoid in air nitrogen and enters in flue gas, improves the concentration of carbon dioxide in flue gas, beneficially dioxy
Change the recovery compression of carbon.
The 8th kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently that the embodiment of the present application provides, is above-mentioned the
On the basis of a kind of coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently, also include following technical characteristic:
Flue between described exsiccator and described second flue gas recycled pipeline is multi-channel parallel pipeline.So energy
Gou Shimei road pipeline supplied flue gases amount is equal, improves wall temperature, so can preferably avoid CO in flue gas2With steam at pipe
Corrosion to pipeline when wall temperature is the lowest.
In sum, the above-mentioned coal-fired boiler in power plant system of oxygen-enriched combusting pattern that has concurrently is by conventional power plant coal-burning boiler
Local oxygen-enriched combusting transformation, it is to avoid reconstructing of oxygen-enriched combusting station boiler, save substantial amounts of fund, and air
Segregation apparatus and liquid oxygen storage device, independent of a whole set of steam generator system, when it breaks down, can carry out regular air
Combustion mode, improves the effectiveness of system.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (8)
1. have a coal-fired boiler in power plant system for oxygen-enriched combusting pattern concurrently, including burner hearth, described burner hearth have oxygen intake and
Being connected with fuel pulverizing plant, have economizer in described burner hearth, described economizer is connected with the first end of denitrification apparatus, described denitration
Second end of device is connected with the first end of air preheater, and the second end of described air preheater connects the first of cleaner unit
End, the second end of described cleaner unit connects the first end of desulfurizer, and the second end of described desulfurizer is connected to chimney, and it is special
Levy and be, also include air-separating plant and the liquid oxygen storage device connected with described oxygen intake, described denitrification apparatus
And being provided with the first valve between described air preheater, the two ends of described air preheater are respectively by the second valve and the 3rd
Valve in parallel has heat-exchanger rig, and the 3rd end of described desulfurizer is connected by the 5th valve the first end of exsiccator, described
Second end of exsiccator has the first lateral and the second lateral, and described first lateral utilizes the 4th valve to connect
To described desulfurizer, described second lateral is connected with the flue gas recycled entrance of described heat-exchanger rig, and described heat exchange fills
The flue gas recycled outlet connection put has the first flue gas recycled pipeline and the second flue gas recycled pipeline, described first recirculation
Flue is connected to described oxygen intake, and described second flue gas recycled pipeline is connected to described fuel pulverizing plant, described dry
The three-terminal link of device has pressurized carbon dioxide compression apparatus, is provided with the 6th between the second end and the described chimney of described desulfurizer
Valve.
The coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently the most according to claim 1, it is characterised in that described dry
Second end of dry device is provided with flue gas flow monitoring device and the oxygen content detector detecting the oxygen content in flue gas.
The coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently the most according to claim 1, it is characterised in that described oxygen
Gas porch is provided with for controlling the effusion meter that oxygen accounts for the 28% to 32% of mixed gas total amount.
The coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently the most according to claim 1, it is characterised in that described liquid
Pressure gauge and air relief valve are installed on state oxygen-storing device.
The coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently the most according to claim 2, it is characterised in that described dry
The working surface of dry device is provided with aluminium lamination.
6., according to the coal-fired boiler in power plant system of the oxygen-enriched combusting pattern that has concurrently described in any one of claim 1-5, its feature exists
In, it is detachable connection between described air-separating plant and described liquid oxygen storage device and described oxygen intake.
7., according to the coal-fired boiler in power plant system of the oxygen-enriched combusting pattern that has concurrently described in any one of claim 1-5, its feature exists
In, described desulfurizer is provided with the lime stone slurry for sulfur dioxide absorption, the first lateral of described exsiccator
In flue gas be used for aoxidizing described lime stone slurry.
The coal-fired boiler in power plant system having oxygen-enriched combusting pattern concurrently the most according to claim 1, it is characterised in that described dry
Flue between dry device and described second flue gas recycled pipeline is multi-channel parallel pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479573.6A CN106051746B (en) | 2016-06-23 | 2016-06-23 | A kind of coal-fired boiler in power plant system for having oxygen-enriched combusting pattern concurrently |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479573.6A CN106051746B (en) | 2016-06-23 | 2016-06-23 | A kind of coal-fired boiler in power plant system for having oxygen-enriched combusting pattern concurrently |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106051746A true CN106051746A (en) | 2016-10-26 |
| CN106051746B CN106051746B (en) | 2018-03-23 |
Family
ID=57166562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479573.6A Active CN106051746B (en) | 2016-06-23 | 2016-06-23 | A kind of coal-fired boiler in power plant system for having oxygen-enriched combusting pattern concurrently |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051746B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439876A (en) * | 2016-11-02 | 2017-02-22 | 中国神华能源股份有限公司 | Flue gas treatment device of boiler system and boiler system |
| CN108548173A (en) * | 2018-03-29 | 2018-09-18 | 上海锅炉厂有限公司 | A kind of oxygen-enriched combustion boiler system with dehydration regulating power |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130035641A (en) * | 2011-09-30 | 2013-04-09 | 한국전력공사 | The method for efficiency improvement that utilizing waste heat recovery of air compressors for oxy combustion power plant |
| CN103104910A (en) * | 2013-02-18 | 2013-05-15 | 上海锅炉厂有限公司 | Micro oxygen rich combustion W flame boiler and CO2 emission reduction system |
| CN103234198A (en) * | 2013-04-19 | 2013-08-07 | 上海交通大学 | Superfine coal dust oxygen-enriched combustion technology and system |
| CN103953921A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Oxygen-enriched combustion boiler system and operation method thereof |
| CN104266171A (en) * | 2014-08-28 | 2015-01-07 | 国电龙源节能技术有限公司 | Flue gas waste heat utilization system of thermal power plant |
| CN105042610A (en) * | 2015-07-27 | 2015-11-11 | 四川川锅锅炉有限责任公司 | CFB oxygen-enriched combustion smoke near zero emission power generation system |
| CN105114945A (en) * | 2015-09-29 | 2015-12-02 | 中国神华能源股份有限公司 | Boiler system and flue gas and air system thereof |
-
2016
- 2016-06-23 CN CN201610479573.6A patent/CN106051746B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130035641A (en) * | 2011-09-30 | 2013-04-09 | 한국전력공사 | The method for efficiency improvement that utilizing waste heat recovery of air compressors for oxy combustion power plant |
| CN103104910A (en) * | 2013-02-18 | 2013-05-15 | 上海锅炉厂有限公司 | Micro oxygen rich combustion W flame boiler and CO2 emission reduction system |
| CN103234198A (en) * | 2013-04-19 | 2013-08-07 | 上海交通大学 | Superfine coal dust oxygen-enriched combustion technology and system |
| CN103953921A (en) * | 2014-04-22 | 2014-07-30 | 东方电气集团东方锅炉股份有限公司 | Oxygen-enriched combustion boiler system and operation method thereof |
| CN104266171A (en) * | 2014-08-28 | 2015-01-07 | 国电龙源节能技术有限公司 | Flue gas waste heat utilization system of thermal power plant |
| CN105042610A (en) * | 2015-07-27 | 2015-11-11 | 四川川锅锅炉有限责任公司 | CFB oxygen-enriched combustion smoke near zero emission power generation system |
| CN105114945A (en) * | 2015-09-29 | 2015-12-02 | 中国神华能源股份有限公司 | Boiler system and flue gas and air system thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439876A (en) * | 2016-11-02 | 2017-02-22 | 中国神华能源股份有限公司 | Flue gas treatment device of boiler system and boiler system |
| CN106439876B (en) * | 2016-11-02 | 2019-01-04 | 中国神华能源股份有限公司 | The flue gas processing device and boiler system of boiler system |
| CN108548173A (en) * | 2018-03-29 | 2018-09-18 | 上海锅炉厂有限公司 | A kind of oxygen-enriched combustion boiler system with dehydration regulating power |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106051746B (en) | 2018-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103953921B (en) | Oxygen-enriched combustion boiler system and operation method thereof | |
| CN103697482B (en) | A kind of organic exhaust gas boiler heating power burning processing system and process technique | |
| JPH0526409A (en) | Carbon dioxide recoverying boiler | |
| CN102084184B (en) | Method of controlling combustion in oxygen combustion boiler and apparatus therefor | |
| CN203823745U (en) | Oxygen-enriched combustion boiler system | |
| CN106196134A (en) | A kind of fume afterheat energy-conserving and environment-protective coal dust preparation system | |
| CN204127939U (en) | With the steam generator system of cold flue gas recirculation | |
| CN105241262A (en) | Pure oxygen combustion and carbon dioxide capturing system and process of heating furnace | |
| CN108686505A (en) | A kind of flue gases of cock oven low temperature SCR denitration and waste heat recovery integrated apparatus and technique | |
| CN106123002A (en) | A kind of flue gas MGGH system and method using condensation water heat exchange | |
| CN106051746A (en) | Power plant coal-fired boiler system combining oxygen-enriched combustion mode | |
| CN206234838U (en) | Built-in air preheater and the CO boilers with it | |
| CN205607235U (en) | Hot media water tubular heat exchanger control system | |
| US9429319B2 (en) | Boiler combustion system and operation method therefor | |
| CN204665224U (en) | A kind of Water pipe heating pipe afterheat boiler system be built on sintering machine flue | |
| CN106765035A (en) | Improve SCR temperature of reactor system and device and method | |
| CN206235007U (en) | Incline smoke pipe heating furnace | |
| CN110145754A (en) | It can prevent the boiler flue gas treatment system and method for back-end surfaces low-temperature corrosion | |
| CN205208599U (en) | Residual heat from flue gas system and oxygen boosting burning boiler of oxygen boosting burning boiler | |
| Wu et al. | Technology options for clean coal power generation with CO2 capture | |
| CN207162509U (en) | Improve SCR temperature of reactor system and devices | |
| CN206404566U (en) | Heat accumulating type natural gas boiler energy-saving denitration integral system | |
| CN201028570Y (en) | Multilevel rotating energy conservation dust removing and harmful gas removing vertical boiler | |
| CN205014344U (en) | Boiler system and flue gas air system thereof | |
| CN205560719U (en) | Desulfurization oxygen combustion system that floats |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |