CN102374526A - Low volatile coal water slurry combustion device - Google Patents
Low volatile coal water slurry combustion device Download PDFInfo
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- CN102374526A CN102374526A CN2010102579129A CN201010257912A CN102374526A CN 102374526 A CN102374526 A CN 102374526A CN 2010102579129 A CN2010102579129 A CN 2010102579129A CN 201010257912 A CN201010257912 A CN 201010257912A CN 102374526 A CN102374526 A CN 102374526A
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- mixing chamber
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Abstract
The invention relates to a low volatile coal water slurry combustion device. The device mainly comprises a loop-shaped combustion chamber 1, an ejector 5, a combustion head 6 and the like. When combustion air provided by main air flow 4 enters an ejector mixing chamber at high speed from an ejector nozzle, the high temperature fuel gas is sucked in a combustion head mixing chamber, wherein the high temperature fuel gas flows in the ejector mixing chamber from a high temperature reflow fuel gas pipeline; the high temperature fuel gas in the combustion head mixing chamber enters a primary combustion chamber by ejecting with a primary swirler, such that the temperature of the air flow is increased. A fuel oil combustion system of the combustion head starts to ignite, and a nozzle injects oil to burn. When the air flow temperature inside the whole combustion chamber reaches (exceeds) the temperature for coal water slurry evaporation, firing and burning, a coal water slurry lance is started to inject the coal water slurry fuel to the primary combustion chamber. When the coal water slurry fuel burns stably, the work of the fuel system is stopped, and the coal water slurry continuously burns.
Description
Technical field
The present invention relates to a kind of burner that is used for water-coal-slurry, relate in particular to a kind of coal-water fluid burner of low-volatile.
Background technology
Water-coal-slurry is a kind of novel coal-based fuel slurry, but replacing oil combustion, have low pollute, efficient, energy-conservation, outstanding advantage that operating cost is low.The water coal slurry replacing oil combustion technology last century the eighties just bring into use domestic some large-scale water-coal-slurry production plants that also formed.The height of water-coal-slurry fugitive constituent is the key factor that can spray burning stable, when fugitive constituent is lower than 30%, during spray burning, does not have enough fugitive constituents in time to burn, and is difficult to keep burning institute's calorific requirement and temperature, has formed not flame.Because it still is many that fugitive constituent is lower than 30% coal,, need to solve the technical problem of the water-coal-slurry smooth combustion of low-volatile for solving its combustion stablized problem.
Summary of the invention
The coal-water fluid burner of a kind of low-volatile that the objective of the invention is to design in order to solve the problems of the technologies described above.
The technical problem that (1) will solve
Fugitive constituent is lower than 30% the water-coal-slurry relatively difficulty of smooth combustion of catching fire, and takes off fire, flame-out easily.
(2) technical scheme
In order to solve the problems of the technologies described above, the present invention adopts a kind of coal-water fluid burner of low-volatile, and realizes through following technical scheme:
A kind of low-volatile coal-water fluid burner of the present invention is formed by burning head, injector, go back to type combustion chamber etc.Wherein burning head comprises one-level cyclone, one-level combustion chamber, second cyclone, fuel nozzle (igniting), water-coal-slurry spray gun, nozzle fixed support and burns a mixing chamber; Injector comprises high temperature reflux Gas Pipe, injector mixing chamber, injector nozzle of air supply; Going back to the type combustion chamber is a kind of general time type industrial furnace structure, and set inside has flame retardant coating, thermal insulation layer, heat-insulation layer etc.
The injector nozzle of air supply is a kind of convergence type structure, and its inlet end directly is connected with high pressure positive blower interface or high pressure draught pipe outlet, and its nozzle row gas port is installed in the center of injector mixing chamber, and on same axis; The high temperature reflux gas pipeline is installed in a lateral location of injector mixing chamber.
Burn a back that is mounted in the injector mixing chamber; The nozzle fixed support is installed on the one-level cyclone; The one-level cyclone has the one-level combustion chamber, and second cyclone is installed in the exit of one-level combustion chamber, and one-level combustion chamber and second cyclone all are fixed on and burn on the mixing chamber; Wherein water-coal-slurry spray gun and fuel nozzle (igniting) device all is fixed on the nozzle fixed support; Nozzle fixed support, one-level cyclone, second cyclone, one-level combustion chamber and injector mixing chamber and are installed in the back of injector mixing chamber on same axis.
The injector nozzle of air supply is by high pressure positive blower or high pressure draught pipeline primary air to be provided; The combustion air that provides when primary air gets into the injector mixing chamber at a high speed through injector nozzle; In mixing chamber, form the low-pressure air current center, be drawn into the high-temperature fuel gas that from the high temperature reflux gas pipeline, flows into mixing chamber and burn a mixing chamber, in a burning mixing chamber after two bursts of air blending; In one-level cyclone injection gets into the one-level combustion chamber, gas flow temperature is raise.The oil burning system that burns head begins igniting, nozzle oil jetting combustion; The burning indoor air flow is further heated; After gas flow temperature in whole combustion chamber reaches the evaporation of (exceeding) water-coal-slurry, ablaze temperature, start the water-coal-slurry spray gun to one-level combustion chamber injection water coal slurry fuel, after coal water slurry fuel reaches smooth combustion; Fuel system quits work, and water-coal-slurry burns away.In the work of one-level combustion chamber, second cyclone directly replenishes air to the reverse flow type combustor and carries out burning, heating.
Take technique scheme, make the present invention have following advantage and effect:
1) used device structure is simple, safeguards easy to usely, and reliability is high, long service life, and cost performance is high.
2) water-coal-slurry of water-coal-slurry lance ejection through one-level cyclone atomizing back and high-temperature fuel gas high efficient mixed, realizes that quick evaporate to dryness fire burns at compressed air, realizes that the reliable and stable of low-volatile water-coal-slurry is burnt.
Description of drawings
Fig. 1 is the structural representation of the coal-water fluid burner of low-volatile.
Fig. 2 is for burning the structural representation of head and injector
1-returns type combustion chamber 2-high-temperature fuel gas and discharges 3-high temperature reflux combustion gas 4-primary air
5-injector 6-burns a 7-high temperature reflux Gas Pipe 8-injector mixing chamber
9-injector nozzle of air supply 10-water-coal-slurry spray gun 11-nozzle fixed support
12-fuel nozzle (igniting) device 13-one-level cyclone 14-one-level combustion chamber
15-burns a mixing chamber 16-second cyclone
The specific embodiment
By illustrated in figures 1 and 2, the coal-water fluid burner of a kind of low-volatile of the present invention is mainly by returning type combustion chamber 1, injector 5, burning 6 etc. and form.Wherein burn 6 and comprise one-level cyclone 13, one-level combustion chamber 14, second cyclone 16, fuel nozzle (igniting) device 12, water-coal-slurry spray gun 10, nozzle fixed support 11 and a burning mixing chamber 15; Injector 5 comprises high temperature reflux Gas Pipe 7, injector mixing chamber 8, injector nozzle of air supply 9; Going back to type combustion chamber 1 is a kind of general time type industrial furnace structure.
Described injector nozzle of air supply 9 is a kind of convergence type structures, and its inlet end directly is connected with high pressure positive blower interface or high pressure draught pipe outlet, and its nozzle row gas port is installed in the center of injector mixing chamber 8, and on same axis; Injector mixing chamber 8 is cylindrical cavities, and high temperature reflux Gas Pipe 7 is installed on the lateral wall position of injector mixing chamber 8.
Described burning 6 is installed in the rear portion of injector mixing chamber 8; Wherein water-coal-slurry spray gun 10 and fuel nozzle (igniting) device 12 all is fixed on the nozzle fixed support 11, and the spout of nozzle fixed support 11 and injector nozzle of air supply 9 and is installed in the rear of spout on same axis; One-level cyclone 13 has one-level combustion chamber 14, be fixed on to burn on the mixing chamber 15, and with burn 15 a same axle center; One-level combustion chamber 14 is the frustum of a cone cavitys of diffusion backward, and second cyclone 16 is mounted in the exit of burning a mixing chamber 15 and one-level combustion chamber 14; Burning a mixing chamber 15 also is the frustum of a cone of diffusion backward, forms a ring-like cavity with one-level combustion chamber 14.
Described injector 5 is by high pressure positive blower or high pressure draught pipeline primary air 4 to be provided; The combustion air that provides when primary air 4 gets into injector mixing chamber 8 through injector nozzle of air supply 9 high velocity jet; In injector mixing chamber 8, form the low-pressure air current center, the high temperature reflux combustion gas 3 that will from high temperature reflux Gas Pipe 7, flow into injector mixing chamber 8 is drawn into burns a mixing chamber 15.After two bursts of Gas Mixing in Cross flow, gas flow temperature is raise rapidly; One air-flow directly gets into one-level cyclone 13 by injector nozzle of air supply 9 injection air-flows; In one-level combustion chamber 14, fuel nozzle (igniting) device 12 that burns head begins igniting, oil jetting combustion, and air-flow is further heated.Another strand air-flow gets into back type combustion chamber 1 further additional air by a burning mixing chamber 15 through second cyclone 16 and burns in time type combustion chamber 1; After making one-level combustion chamber 14 and returning the ignition temperature that gas flow temperature reaches the evaporation of (exceeding) water-coal-slurry in the type combustion chamber 1, burn, begin to start the water-coal-slurry spray gun to one-level combustion chamber injection water coal slurry fuel.After coal water slurry fuel reached normal combustion, fuel system quit work, and water-coal-slurry burns away.
Described time a kind of general time type industrial furnace structure is adopted in type combustion chamber 1;, furnace temperature begins product in the stove is heated after meeting the requirements of temperature; In the elevated temperature heat air-flow that flows out stove, a part of high temperature reflux combustion gas 3 is inhaled in the injector mixing chamber 8, the heating combustion air; Another part high-temperature fuel gas exhaust 2 is discharged into atmosphere.
Claims (3)
1. the coal-water fluid burner of a kind of low-volatile of the present invention is characterized in that: coal-water fluid burner is mainly by returning type combustion chamber (1), injector (5), burning head (6) etc. and form; Wherein burning head (6) comprises one-level cyclone (13), one-level combustion chamber (14), second cyclone (16), fuel nozzle (igniting) device (12), water-coal-slurry spray gun (10), nozzle fixed support (11) and burns a mixing chamber (15); Injector (5) comprises high temperature reflux Gas Pipe (7), injector mixing chamber (8), injector nozzle of air supply (9).
2. the coal-water fluid burner of a kind of low-volatile according to claim 1; It is characterized in that: injector nozzle of air supply (9) is a kind of convergence type structure; Its inlet end directly is connected with high pressure positive blower interface or high pressure draught pipe outlet; Its nozzle row gas port is installed in the center of injector mixing chamber (8), and on same axis; Injector mixing chamber (8) is a cylindrical cavity, and high temperature reflux Gas Pipe (7) is installed on the lateral wall position of injector mixing chamber (8).
3. the coal-water fluid burner of a kind of low-volatile according to claim 1 is characterized in that: burn the rear portion that head (6) is installed in injector mixing chamber (8); Wherein water-coal-slurry spray gun (10) and fuel nozzle (igniting) device (12) all is fixed on the nozzle fixed support (11), and the spout of nozzle fixed support (11) and injector nozzle of air supply (9) and is installed in the rear of spout on same axis; One-level cyclone (13) has one-level combustion chamber (14), be fixed on to burn on the mixing chamber (15), and with burn head (15) same axle center; One-level combustion chamber (14) is a frustum of a cone cavity of diffusion backward, and second cyclone (16) is mounted in the exit of burning a mixing chamber (15) and one-level combustion chamber (14); Burning a mixing chamber (15) also is the frustum of a cone of diffusion backward, forms a ring-like cavity with one-level combustion chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102579129A CN102374526A (en) | 2010-08-20 | 2010-08-20 | Low volatile coal water slurry combustion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102579129A CN102374526A (en) | 2010-08-20 | 2010-08-20 | Low volatile coal water slurry combustion device |
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| CN102374526A true CN102374526A (en) | 2012-03-14 |
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| CN2010102579129A Pending CN102374526A (en) | 2010-08-20 | 2010-08-20 | Low volatile coal water slurry combustion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878554A (en) * | 2012-10-12 | 2013-01-16 | 浙江大学 | Combustor special for coal water slurry combustion type cracking furnace |
| CN108253411A (en) * | 2018-03-23 | 2018-07-06 | 河北科技大学 | Biomass gasification fired boiler with induction apparatus |
| CN111457361A (en) * | 2019-10-30 | 2020-07-28 | 国家电投集团黄河上游水电开发有限责任公司 | Carbon dust collecting powder combustion device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100050A (en) * | 1985-04-01 | 1986-06-10 | 清华大学 | A kind of intensified synclastic fluid flame stabilization and burner thereof |
| CN87100090A (en) * | 1986-01-08 | 1987-07-29 | 株式会社日立制作所 | The method and apparatus of burning coal-water mixed fuel |
| CN2692502Y (en) * | 2003-12-02 | 2005-04-13 | 上海酒店设备工程成套股份有限公司 | Winding shaped combustion chamber |
| CN101476726A (en) * | 2009-01-14 | 2009-07-08 | 河北工业大学 | High-temperature low-oxygen combustor |
| CN101556039A (en) * | 2009-05-14 | 2009-10-14 | 西安建筑科技大学 | Oxygen-enriched burner |
| CN201547782U (en) * | 2009-10-23 | 2010-08-11 | 洛阳瑞昌石油化工设备有限公司 | Reforming box-type furnace side combustion high-temperature pre-heated forced-draft burner |
| CN201819204U (en) * | 2010-08-20 | 2011-05-04 | 贵州航空发动机研究所 | Low-volatile coal water slurry (CWS) combustion device |
-
2010
- 2010-08-20 CN CN2010102579129A patent/CN102374526A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100050A (en) * | 1985-04-01 | 1986-06-10 | 清华大学 | A kind of intensified synclastic fluid flame stabilization and burner thereof |
| CN87100090A (en) * | 1986-01-08 | 1987-07-29 | 株式会社日立制作所 | The method and apparatus of burning coal-water mixed fuel |
| CN2692502Y (en) * | 2003-12-02 | 2005-04-13 | 上海酒店设备工程成套股份有限公司 | Winding shaped combustion chamber |
| CN101476726A (en) * | 2009-01-14 | 2009-07-08 | 河北工业大学 | High-temperature low-oxygen combustor |
| CN101556039A (en) * | 2009-05-14 | 2009-10-14 | 西安建筑科技大学 | Oxygen-enriched burner |
| CN201547782U (en) * | 2009-10-23 | 2010-08-11 | 洛阳瑞昌石油化工设备有限公司 | Reforming box-type furnace side combustion high-temperature pre-heated forced-draft burner |
| CN201819204U (en) * | 2010-08-20 | 2011-05-04 | 贵州航空发动机研究所 | Low-volatile coal water slurry (CWS) combustion device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878554A (en) * | 2012-10-12 | 2013-01-16 | 浙江大学 | Combustor special for coal water slurry combustion type cracking furnace |
| CN102878554B (en) * | 2012-10-12 | 2015-02-25 | 浙江大学 | Combustor special for coal water slurry combustion type cracking furnace |
| CN108253411A (en) * | 2018-03-23 | 2018-07-06 | 河北科技大学 | Biomass gasification fired boiler with induction apparatus |
| CN111457361A (en) * | 2019-10-30 | 2020-07-28 | 国家电投集团黄河上游水电开发有限责任公司 | Carbon dust collecting powder combustion device |
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Application publication date: 20120314 |