CN207214049U - A kind of burner - Google Patents
A kind of burner Download PDFInfo
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- CN207214049U CN207214049U CN201721131293.2U CN201721131293U CN207214049U CN 207214049 U CN207214049 U CN 207214049U CN 201721131293 U CN201721131293 U CN 201721131293U CN 207214049 U CN207214049 U CN 207214049U
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- oxygen
- burner
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- outlet
- temperature
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- 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
Abstract
The utility model discloses a kind of burner, belongs to fuel combustion appliance technical field, including：Burner outlet (6), it includes one or more fuel outlets, for being connected to the burner hearth (8) of boiler, one or more fuel is transported in burner hearth (8) and burnt；First air passage (1), First air entrance is provided with its one end side wall, and the other end extends to burner outlet (6) and is formed as First air outlet；Secondary air channel (2), Secondary Air entrance is provided with its one end side wall, and the other end extends to burner outlet (6) and is formed as Secondary Air outlet；Oxygen supply rifle (3), its one end are formed as oxygen intake, and the other end extends to burner outlet (6) and is formed as oxygen outlet, for introducing oxygen into burner hearth (8).The utility model supplies rifle (3) by increasing oxygen, and the oxygen of abundance is provided for fuel, improves the combustion rate of fuel, realizes the oxygen-enriched combusting of pulverized-coal fired boiler.
Description
Technical field
It the utility model is related to fuel combustion appliance technical field, more particularly to a kind of burner.
Background technology
Global warming is right in emission reduction tasks and 13 ENERGY PLANNINGs that Chinese Government promises to undertake with reply climate change
The carbon intensity of the fossil-fired unit of domestic five big Power Groups proposes specific requirement, i.e., to the year two thousand twenty, five big electricity
The average carbon intensity of the fossil-fired unit of power will be in 650kgCO2/ below kWh.Following coal-burning power plant is required for passing through purchase
Tradable green certificates or carbon index are bought to maintain annual generation load amount, or just needs to carry out fuel flexibility transformation, becomes low-carbon
Discharge the thermal power plant of intensity.
The boiler of existing Large-scale fire-electricity unit is largely to use high-efficiency pulverized coal boiler form, in order to solve the above problems,
Prior art has carried out fuel flexibility transformation, but these schemes have following defect in itself：
1. the technical scheme of prior art, due to oxygen supply deficiency, there is that fuel combustion is insufficient, the combustion rate of fuel is low etc.
Problem.
2. the technical scheme of prior art, which generally requires, does large-scale high cost to boiler body and boiler heating surface
Transformation, and transform it is latter as only allow a kind of fuel that burns, such as pulverized-coal fired boiler to be changed to the boiler of fired biomass completely, so
Do the flexibility for not realizing fuel actually.
Utility model content
(1) purpose of utility model
The purpose of this utility model is to provide a kind of burner, applied in large-scale power station pulverized-coal fired boiler, by existing power station
The burner structure of pulverized-coal fired boiler is transformed, on the basis of rebuilding at low cost, it is possible to realizes the richness of Large-scale fire-electricity unit
Oxygen combustion function and fuel flexibility.Rifle, oil gas supply rifle and corresponding multi fuel feeding pipe are supplied by increasing pure oxygen, from
And can realize on the basis of the First air and Secondary Air of traditional coal powder fired boiler burner, realize the confession of oxygen-enriched combusting and multi fuel
Give and burn.The particularly introducing of biogas, hydrogen and pure oxygen, it is possible to achieve the underload of Large-scale fire-electricity unit boiler is steady
Combustion, so as to improve the load range of boiler at low load peak regulation, increases the peak modulation capacity of fired power generating unit, passes through annual participation power network
Depth peak regulation, power plant is set to obtain peak regulation subsidy.Meanwhile the utilization of the high-efficiency cleaning of biomass energy, domestic burning can be avoided
Pollute, increase farmers' income caused by the biomass such as stalk.
(2) technical scheme
To solve the above problems, the utility model provides a kind of burner, including：Burner outlet, it includes one kind
Or pluralities of fuel outlet, for being connected to the burner hearth of boiler, one or more fuel are transported in burner hearth and burnt；One
Secondary wind passage, First air entrance is provided with its one end side wall, the other end extends to the burner outlet and is formed as once
Wind exports；Secondary air channel, Secondary Air entrance is provided with its one end side wall, and the other end extends to the burner outlet and shape
Exported as Secondary Air；Oxygen supplies rifle, and its one end is formed as oxygen intake, and the other end extends to the burner outlet and shape
As oxygen outlet, for introducing oxygen into the burner hearth.
Further, the axis of oxygen supply rifle and the axis of the First air passage form the first angle, and described the
The angular range of one angle is 0 °~30 °.
Further, the oxygen outlet end of the oxygen supply rifle is provided with the first shutoff valve；The oxygen supply rifle
Oxygen outlet end is additionally provided with first pressure sensor, and/or, it is provided with the first temperature at the oxygen outlet of the oxygen supply rifle
Degree probe；The first pressure sensor is used to detect the gas pressure P1 at oxygen outlet end and is sent to controller, the control
Device processed by the gas pressure P1 collected compared with the first preset pressure, when the gas pressure P1 collected is beyond first pre-
If during pressure limit, the controller controls first shutoff valve to close；First temp probe is used to detect oxygen
The temperature T1 in exit is simultaneously sent to the controller, and the controller carries out the temperature T1 collected and the first preset temperature
Compare, when the temperature T1 collected is higher than the first preset temperature, the controller controls first shutoff valve to close；Institute
State and oxygen content testing instrument is provided with burner hearth, for detecting the oxygen content in the burner hearth, the oxygen content testing instrument will detect
To oxygen-containing numerical quantity be sent to the controller, the controller is compared the oxygen-containing numerical quantity collected with default value
Compared with when the oxygen-containing numerical quantity collected is higher than default value, the controller controls first shutoff valve to close；It is described
Second temperature probe is additionally provided with burner hearth, for detecting the flue-gas temperature T2 in the burner hearth, the second temperature probe will
The flue-gas temperature T2 detected is sent to the controller, and the controller is default warm by the flue-gas temperature T2 collected and second
Degree is compared, when the flue-gas temperature T2 collected is higher than the second preset temperature, controller control first cut-off
Valve is closed.
Further, the burner also includes：Oil gas supplies rifle, and its one end is formed as oil gas entrance, and the other end extends to
The burner outlet is simultaneously formed as oil gas vent, and liquid or gaseous fuel are conveyed for timesharing.
Further, the axis of oil gas supply rifle and the axis of the First air passage form the second angle, and described the
The angular range of two angles is 0 °~30 °.
Further, the oil gas vent end of the oil gas supply rifle is provided with the second shutoff valve；The oil gas supply rifle
Oil gas vent end is additionally provided with second pressure sensor, and/or, it is provided with the 3rd temperature at the oil gas vent of the oil gas supply rifle
Degree probe；The second pressure sensor is used to detect the oil-air pressure P2 at oil gas vent end and is sent to controller, the control
Device processed by the oil pressure collected or air pressure P2 compared with the second preset pressure, when the oil pressure or air pressure P2 collected is less than the
During two preset pressures, the controller controls second shutoff valve to close；3rd temp probe is used to detect oil gas
The temperature T3 in exit is simultaneously sent to the controller, and the controller carries out the temperature T3 collected and the 3rd preset temperature
Compare, when the temperature T3 collected is higher than three preset temperatures, the controller controls second shutoff valve to close.
Further, the First air passage, which is located at, is provided with First air in one end side wall on the outside of the furnace wall of the boiler and enters
Mouthful.
Further, the secondary air channel is set in outside the First air port of export of the First air passage.
(3) beneficial effect
Above-mentioned technical proposal of the present utility model has following beneficial technique effect：
The utility model can realize the transformation to existing large coal powder boiler of low cost, by existing generating plant pulverized coal boiler
Burner structure transformed, on the basis of rebuilding at low cost, it is possible to realize the oxygen-enriched combusting work(of Large-scale fire-electricity unit
Energy and fuel flexibility.Rifle, oil gas supply rifle and corresponding multi fuel feeding pipe are supplied by increasing pure oxygen, so as to reality
On the basis of the First air and Secondary Air of present traditional coal powder fired boiler burner, the supply and combustion of oxygen-enriched combusting and multi fuel are realized
Burn.The flexible combination use of rifle, oil gas supply rifle is supplied by oxygen, realizes real fuel flexibility so that coal dust pot
Stove can the neatly pluralities of fuel such as combusting heavy oil, light oil, natural gas, hydrogen, biogas after transformation.It is particularly biological
The introducing of matter gas, hydrogen and pure oxygen, it is possible to achieve the low-load combustion-stabilizing of Large-scale fire-electricity unit boiler, it is low negative so as to improve boiler
The load range of lotus peak regulation, the peak modulation capacity of fired power generating unit is increased, by the annual depth peak regulation for participating in power network, obtain power plant
Peak regulation is subsidized.Meanwhile the utilization of the high-efficiency cleaning of biomass energy, it can avoid dirty caused by the biomass such as domestic crop straw burning
Dye, increases farmers' income.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram that the burner that the utility model embodiment one provides is connected with burner hearth；
Fig. 2 is the burner appearance schematic diagram that the utility model embodiment two provides；
Fig. 3 is the burner outlet end view that the utility model embodiment two provides.
Reference：
1st, First air passage, 1a, the first straight section, 1b, the first cone section, 1c, the second straight section, 1d, the 3rd straight section, 2, Secondary Air
Passage, 2a, the first straight section, 2b, the second straight section, 3, oxygen supply rifle, 4, oil gas supply rifle, 5, fixed mount, 6, burner outlet,
7th, fixed plate, 8, burner hearth.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to embodiment
And referring to the drawings, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid not
Necessarily obscure concept of the present utility model.
Embodiment one
Fig. 1 is the burner and burner hearth attachment structure schematic diagram that the utility model embodiment one provides.
Fig. 1 is refer to, the burner includes：Burner outlet 6, First air passage 1, secondary air channel 2, oxygen supply rifle
3。
Burner outlet 6, it includes one or more fuel outlets, for being connected to the burner hearth 8 of boiler, by a kind of or
Pluralities of fuel, which is transported in burner hearth 8, to be burnt.Formed specifically, burner outlet 6 is collected by one or more fuel outlets,
Form a unified outlet, so as to the interface flexibility of burner hearth 8, burner hearth 8 herein, refer to the stove of large-scale power station pulverized-coal fired boiler
Thorax.
First air passage 1, First air entrance is provided with its one end side wall, and the other end extends to burner outlet 6 and shape
Exported as First air.First air passage 1 is used for the mixture of pulverized coal conveying and air.
Secondary air channel 2, Secondary Air entrance is provided with its one end side wall, and the other end extends to burner outlet 6 and shape
Exported as Secondary Air.Secondary air channel 2 is used for conveying the air of preheating.
Optionally, First air passage 1, which is located in one end side wall on the outside of the furnace wall of boiler, is provided with First air entrance.
Optionally, secondary air channel 2 is set in outside the First air port of export of First air passage 1, and the two of secondary air channel 2
Secondary wind outlet is connected with burner hearth 8.
Specifically, First air passage 1 include being sequentially connected the first straight section 1a, the first cone section 1b, the second straight section 1c and
3rd straight section 1d；First air entrance is set in the first straight section 1a side wall；3rd straight section 1d extends to burner outlet 6 and formed
Exported for First air；The first straight section 1a, the second straight section 1c of First air passage 1 and the 3rd straight section 1d area of section subtract successively
It is small.
Specifically, secondary air channel 2 includes the first straight section 2a and the second straight section 2b being sequentially connected；First straight section 2a side
Secondary Air entrance is set on wall；Second straight section 2b extends to burner outlet 6 and is formed as Secondary Air outlet；Secondary air channel 2
The first straight section 2a area of section be more than the second straight section 2b area of section.
Oxygen supplies rifle 3, and its one end is formed as oxygen intake, and the other end extends to burner outlet 6 and is formed as oxygen
Outlet, for introducing oxygen into burner hearth 8, the oxygen of abundance is provided for fuel, improves the combustion rate of fuel, realizes coal dust
The oxygen-enriched combusting of boiler so that the low load combustion of pulverized-coal fired boiler is more stable.
Optionally, the axis of oxygen supply rifle 3 forms the first angle with the axis of First air passage 1.
Optionally, the angular range of the first angle is 0 °~30 °.
Optionally, the section of oxygen supply rifle 3 includes but is not limited to circle.
Optionally, the diameter of section scope of oxygen supply rifle 3 is 1mm~200mm.
Because the supply and interruption of oxygen need to supply the gas pressure P1 and oxygen supply rifle 3 in rifle 3 according to oxygen
The temperature T1 in exit be controlled, therefore, the oxygen outlet end of oxygen supply rifle 3 is provided with the first shutoff valve；Oxygen
The oxygen outlet end of supply rifle 3 is additionally provided with first pressure sensor, and/or, it is provided with the oxygen outlet of oxygen supply rifle 3
First temp probe.When the gas pressure P1 that the first pressure sensor at the oxygen outlet end of oxygen supply rifle 3 detects exceeds
During the first pre-set pressure range, or the temperature T1 that detects of the first temp probe at the oxygen outlet of oxygen supply rifle 3
During higher than preset temperature, then controller controls the first shutoff valve to close, to control the oxygen content and flue-gas temperature in burner hearth 8
T2。
First pressure sensor is used to detect the gas pressure P1 at oxygen outlet end and is sent to controller, and controller will be adopted
The gas pressure P1 collected is compared with the first preset pressure, when the gas pressure P1 collected exceeds the first preset pressure model
When enclosing, controller controls the first shutoff valve to close.
First temp probe is used to detect the temperature T1 at oxygen outlet and be sent to controller, and controller will collect
Temperature T1 is compared with the first preset temperature, when the temperature T1 collected is higher than the first preset temperature, controller control the
One shutoff valve is closed.
Optionally, the oxygen outlet end of oxygen supply rifle 3 is provided with the first shutoff valve and first pressure sensor, works as oxygen
The gas pressure P1 that the first pressure sensor at the oxygen outlet end of gas supply rifle 3 detects exceeds the first pre-set pressure range
When, then controller controls the first shutoff valve to close.
Optionally, the oxygen outlet end of oxygen supply rifle 3 is provided with the first shutoff valve, and the oxygen of oxygen supply rifle 3 goes out
The first temp probe is provided with mouthful, the temperature T1 that the first temp probe at the oxygen outlet of oxygen supply rifle 3 detects
During higher than the first preset temperature, then controller controls the first shutoff valve to close.
Optionally, the oxygen outlet end of oxygen supply rifle 3 is provided with the first shutoff valve and first pressure sensor, oxygen
Supply and be additionally provided with the first temp probe at the oxygen outlet of rifle 3, when the first pressure at the oxygen outlet end of oxygen supply rifle 3 passes
When the gas pressure P1 that sensor detects exceeds the first pre-set pressure range, or at the oxygen outlet of oxygen supply rifle 3
When the temperature T1 that first temp probe detects is higher than the first preset temperature, then controller controls the first shutoff valve to close.
Further, since the supply and interruption of oxygen also need to be controlled according to the oxygen content in burner hearth 8 and flue-gas temperature T2
System, therefore, be arranged on oxygen supply rifle 3 oxygen outlet end the first shutoff valve will also according to the oxygen content in burner hearth 8 and
Flue-gas temperature T2 is controlled.When the oxygen-containing numerical quantity or calculated value that oxygen content testing instrument detects in burner hearth 8 are higher than default value
When, or when the second temperature probe in burner hearth 8 detects that flue-gas temperature T2 is higher than the second preset temperature, then controller controls
First shutoff valve is closed, to control the oxygen content and flue-gas temperature T2 in burner hearth 8.
Oxygen content testing instrument is provided with burner hearth 8, for detecting the oxygen content in burner hearth 8, oxygen content testing instrument will detect
To oxygen-containing numerical quantity be sent to controller, controller by the oxygen-containing numerical quantity collected compared with default value, when adopting
When the oxygen-containing numerical quantity collected is higher than default value, controller controls the first shutoff valve to close.
Second temperature probe is additionally provided with burner hearth 8, for detecting the flue-gas temperature T2 in burner hearth 8, second temperature probe
The flue-gas temperature T2 detected is sent to controller, controller carries out the flue-gas temperature T2 collected and the second preset temperature
Compare, when the flue-gas temperature T2 collected is higher than the second preset temperature, controller controls the first shutoff valve to close.
The specific control logic of first shutoff valve can suitably be adjusted according to being actually needed.
In the present embodiment, burner also includes fixed mount 5, is arranged in secondary air channel 2, is welded with secondary air channel 2
Together.
Optionally, fixed mount 5 is arranged on the center of secondary air channel 2.
In the present embodiment, burner also includes fixed plate 7, is arranged on the right side of First air passage 1.
Optionally, fixed plate 7 is including but not limited to circular, square.
Specifically, one end that First air passage 1 is formed as First air outlet is fixed by fixed mount 5, First air is provided with
One end of entrance is fixed by fixed plate 7.One end that oxygen intake is formed on oxygen supply rifle 3 is fixed by fixed plate 7, is formed
It is located at the inner side of secondary air channel 2 for one end of oxygen outlet, while positioned at the outside of fixed mount 5.Oxygen supplies rifle 3 in fixed plate 7
On distributing position can be according to being actually needed appropriate adjustment.
Embodiment two
Fig. 2 is the burner appearance schematic diagram that the utility model embodiment two provides.
Fig. 3 is the burner outlet end view that the utility model embodiment two provides.
Fig. 2, Fig. 3 are refer to, the burner of the present embodiment adds oil gas supply rifle 4 on the basis of embodiment one, its
One end is formed as oil gas entrance, and the other end extends to burner outlet 6 and is formed as oil gas vent, for timesharing convey liquid or
Gaseous fuel so that pulverized-coal fired boiler can neatly burn pluralities of fuel after transformation.
Optionally, liquid fuel includes but is not limited to heavy oil, light oil.
Optionally, gaseous fuel includes but is not limited to natural gas, biogas, hydrogen.
Optionally, the axis of oil gas supply rifle 4 forms the second angle with the axis of First air passage 1.
Optionally, the angular range of the second angle is 0 °~30 °.
Optionally, the section of oil gas supply rifle 4 includes but is not limited to circle.
Optionally, the diameter of section scope of oil gas supply rifle 4 is 1mm~200mm.
Due to easily producing tempering when liquid or gas fuel combustion, potential safety hazard be present, therefore, oil gas supply rifle 4
Oil gas vent end is provided with the second shutoff valve；The oil gas vent end of oil gas supply rifle 4 is additionally provided with second pressure sensor,
And/or it is provided with the 3rd temp probe at the oil gas vent of oil gas supply rifle 4.When second pressure sensor detects that oil gas supplies
When being less than preset pressure to the air pressure in rifle 4 or oil pressure P2, or when the temperature T3 that the 3rd temp probe detects is higher than the 3rd
During preset temperature, then controller controls the second shutoff valve to close, and for avoiding the generation of back-fire trouble, improves the peace of equipment
Quan Xing.
Second pressure sensor is used to detect the oil-air pressure P2 at oil gas vent end and is sent to controller, and controller will be adopted
The oil pressure or air pressure P2 collected is compared with the second preset pressure, when the oil pressure or air pressure P2 collected is less than the second default pressure
During power, controller controls the second shutoff valve to close.
3rd temp probe is used to detect the temperature T3 at oil gas vent and be sent to controller, and controller will collect
Temperature T3 is compared with the 3rd preset temperature, when the temperature T3 collected is higher than three preset temperatures, controller control the
Two shutoff valves are closed.
Optionally, the oil gas vent end of oil gas supply rifle 4 is provided with the second shutoff valve and second pressure sensor, when the
Two pressure sensors detect oil pressure in oil gas supply rifle 4 or air pressure P2 when be less than the second preset pressure, then controller control
Second shutoff valve is closed.
Optionally, the oil gas vent end of oil gas supply rifle 4 is provided with the second shutoff valve, and the oil gas of oil gas supply rifle 4 goes out
The 3rd temp probe is provided with mouthful, when the temperature T3 that the 3rd temp probe detects is higher than three preset temperatures, is then controlled
Device controls the second shutoff valve to close.
Optionally, the oil gas vent end of oil gas supply rifle 4 is provided with the second shutoff valve and second pressure sensor, oil gas
Supply and be additionally provided with the 3rd temp probe at the oil gas vent of rifle 4, when second pressure sensor is detected in oil gas supply rifle 4
When oil pressure or air pressure P2 are less than the second preset pressure, or when the temperature T3 that the 3rd temp probe detects is default higher than the 3rd warm
When spending, then controller controls the second shutoff valve to close.
One end that oil gas entrance is formed on oil gas supply rifle 4 is fixed by fixed plate 7, is formed as one end position of oil gas vent
In the inner side of secondary air channel 2, while positioned at the outside of fixed mount 5.Oil gas supplies distributing position of the rifle 4 in fixed plate 7 can basis
It is actually needed appropriate adjustment.
The structure and annexation of the miscellaneous part structure of burner and annexation and embodiment one in the present embodiment
It is identical, it will not be repeated here.
The combination of oxygen supply rifle 3 and oil gas supply rifle 4 in the utility model includes but is not limited to above-mentioned implementation
Mode, oxygen supply rifle 3 and oil gas supply rifle 4 can also otherwise be combined use as needed, large-scale to realize
The supply and burning of the oxygen-enriched combusting and multi fuel of generating plant pulverized coal boiler.Oxygen supply rifle 3 and oil gas supply rifle 4 respectively with it is corresponding
Feeding pipe connection, and be provided with control valve or flowmeter, the supply of oxygen and pluralities of fuel can be interrupted, with reality
Existing amount of oxygen and the increase and decrease for supplying fuel quantity, so as to realize the oxygen-enriched combusting function of coal fired thermal power plant and sufficient fuel-flexible
Property.
The utility model is intended to protect a kind of burner, applied in large-scale power station pulverized-coal fired boiler, being existing large-scale
It is improved on the architecture basics of thermal power station's coal burner, in the First air of traditional coal powder fired boiler burner and the base of Secondary Air
On plinth, rifle, oil gas supply rifle and corresponding service are supplied by increasing oxygen, is realized to existing large coal powder boiler
Rebuilding at low cost so that pulverized-coal fired boiler has an oxygen-enriched combusting function after transformation, while can neatly combusting heavy oil, lightweight
The pluralities of fuels such as oil, natural gas, hydrogen, biogas.The flexible combination use of rifle, oil gas supply rifle is supplied by oxygen, it is real
Show real fuel flexibility, real fuel flexibility described herein, refer to boiler in different periods according to fuel
Supply and price situation, it can neatly adopt different fuel and carry out combustion power generation.Using burner of the present utility model, make
The pulverized-coal fired boiler for obtaining traditional large thermal power plant can have burning other fuel, particularly regenerative resource fuel (biogas
Or hydrogen) function, the carbon intensity of fired power generating unit can be reduced, power plant is enjoyed the online of department's biomass power generation
Electricity price, increase power plant income, can also make power plant enforce the stage in the competing of electricity market in following carbon tax and tradable green certificates
It is on a good wicket in striving, using regenerative resource combustion power generation, not only rate for incorporation into the power network is high for it, and can avoid being imposed height
The carbon tax of volume, if generating power with biomass combustion future can apply for green electric power supply certificate, thermal power plant's future can also be by sale
Green electric power supply certificate obtains extra notable benefits.The particularly introducing of biogas, hydrogen and pure oxygen, it is possible to achieve large-scale
The low-load combustion-stabilizing of thermal power unit boiler, so as to improve the load range of boiler at low load peak regulation, increase the peak regulation of fired power generating unit
Ability, by the annual depth peak regulation for participating in power network, power plant is set to obtain peak regulation subsidy.Meanwhile the high-efficiency cleaning of biomass energy
Utilization, can avoid polluting caused by the biomass such as domestic crop straw burning, increase farmers' income.
The scheme that the utility model is implemented at present is transformed for traditional generating plant pulverized coal boiler, and future can also pin
The transformation of multi fuel burner is carried out to coal dust heating boiler, including a large amount of gas burners that presently, there are are it is also contemplated that enter
The transformation of the row addition multi fuel such as pure oxygen and biogas or fuel lance, these reforming modes belong to the protection model of this patent
Enclose.
It should be appreciated that above-mentioned embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, without forming to limitation of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvements done etc., should be included within the scope of protection of the utility model.In addition,
The appended claims for the utility model are intended to fall into scope and border or this scope and border
Whole in equivalents changes and modifications example.
Claims (8)
- A kind of 1. burner, it is characterised in that including：Burner outlet (6), it includes one or more fuel outlets, for being connected to the burner hearth (8) of boiler, by a kind of or Pluralities of fuel, which is transported in burner hearth (8), to be burnt；First air passage (1), First air entrance is provided with its one end side wall, the other end extends to the burner outlet (6) And be formed as First air outlet；Secondary air channel (2), Secondary Air entrance is provided with its one end side wall, the other end extends to the burner outlet (6) And be formed as Secondary Air outlet；Oxygen supply rifle (3), its one end are formed as oxygen intake, and the other end extends to the burner outlet (6) and is formed as Oxygen outlet, for introducing oxygen into the burner hearth (8).
- 2. burner according to claim 1, it is characterised in thatThe axis of the oxygen supply rifle (3) forms the first angle, first angle with the axis of the First air passage (1) Angular range be 0 °~30 °.
- 3. burner according to claim 1, it is characterised in thatThe oxygen outlet end of the oxygen supply rifle (3) is provided with the first shutoff valve；The oxygen outlet end of the oxygen supply rifle (3) is additionally provided with first pressure sensor, and/or, the oxygen supplies rifle (3) the first temp probe is provided with oxygen outlet；The first pressure sensor is used to detect the gas pressure P1 at oxygen outlet end and is sent to controller, the controller By the gas pressure P1 collected compared with the first preset pressure, when the gas pressure P1 collected is beyond the first default pressure During power scope, the controller controls first shutoff valve to close；First temp probe is used to detect the temperature T1 at oxygen outlet and is sent to the controller, and the controller will The temperature T1 collected is described when the temperature T1 collected is higher than the first preset temperature compared with the first preset temperature Controller controls first shutoff valve to close；Oxygen content testing instrument is provided with the burner hearth (8), for detecting the oxygen content in the burner hearth (8), the oxygen content The oxygen-containing numerical quantity detected is sent to the controller by detector, and the controller is by the oxygen-containing numerical quantity collected and in advance If numerical value is compared, when the oxygen-containing numerical quantity collected is higher than default value, controller control first cut-off Valve is closed；Second temperature probe is additionally provided with the burner hearth (8), it is described for detecting the flue-gas temperature T2 in the burner hearth (8) The flue-gas temperature T2 detected is sent to the controller, the flue-gas temperature that the controller will collect by second temperature probe T2 is compared with the second preset temperature, when the flue-gas temperature T2 collected is higher than the second preset temperature, the controller control First shutoff valve is made to close.
- 4. burner according to claim 1, it is characterised in that also include：Oil gas supply rifle (4), its one end are formed as oil gas entrance, and the other end extends to the burner outlet (6) and is formed as Oil gas vent, liquid or gaseous fuel are conveyed for timesharing.
- 5. burner according to claim 4, it is characterised in thatThe axis of the oil gas supply rifle (4) forms the second angle, second angle with the axis of the First air passage (1) Angular range be 0 °~30 °.
- 6. burner according to claim 4, it is characterised in thatThe oil gas vent end of the oil gas supply rifle (4) is provided with the second shutoff valve；The oil gas vent end of the oil gas supply rifle (4) is additionally provided with second pressure sensor, and/or, the oil gas supplies rifle (4) the 3rd temp probe is provided with oil gas vent；The second pressure sensor is used to detect the oil-air pressure P2 at oil gas vent end and is sent to controller, the controller By the oil pressure collected or air pressure P2 compared with the second preset pressure, when the oil pressure or air pressure P2 collected is pre- less than second If during pressure, the controller controls second shutoff valve to close；3rd temp probe is used to detect the temperature T3 at oil gas vent and is sent to the controller, and the controller will The temperature T3 collected is described when the temperature T3 collected is higher than three preset temperatures compared with the 3rd preset temperature Controller controls second shutoff valve to close.
- 7. according to the burner any one of claim 1-6, it is characterised in thatThe First air passage (1), which is located in one end side wall on the outside of the furnace wall of the boiler, is provided with First air entrance.
- 8. burner according to claim 7, it is characterised in thatThe secondary air channel (2) is set in outside the First air port of export of the First air passage (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131293.2U CN207214049U (en) | 2017-09-05 | 2017-09-05 | A kind of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131293.2U CN207214049U (en) | 2017-09-05 | 2017-09-05 | A kind of burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160050A (en) * | 2019-06-05 | 2019-08-23 | 中国矿业大学 | A kind of biomass gasified gas and coal dust cofiring low NO |
| CN110207106A (en) * | 2019-05-15 | 2019-09-06 | 哈尔滨锅炉厂有限责任公司 | A kind of coal dust oxygen-enriched burner and its system meeting unit depth peak regulation requirement |
-
2017
- 2017-09-05 CN CN201721131293.2U patent/CN207214049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110207106A (en) * | 2019-05-15 | 2019-09-06 | 哈尔滨锅炉厂有限责任公司 | A kind of coal dust oxygen-enriched burner and its system meeting unit depth peak regulation requirement |
| CN110160050A (en) * | 2019-06-05 | 2019-08-23 | 中国矿业大学 | A kind of biomass gasified gas and coal dust cofiring low NO |
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Effective date of registration: 20180723 Address after: 100176 Beijing City Economic and Technological Development Zone, Chuang Chuang thirteen Street 18 building 12, 5 floors 503 rooms. Patentee after: Beijing HEMPEL Electric Power Technology Co., Ltd. Address before: 100176 No. 12 building, 18 Chuang thirteen street, Daxing District economic and Technological Development Zone, Beijing Patentee before: HEMPEL technology development (Beijing) Co., Ltd. |
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