CN113522550A - Atomizing nozzle for producing coal water slurry - Google Patents
Atomizing nozzle for producing coal water slurry Download PDFInfo
- Publication number
- CN113522550A CN113522550A CN202110922237.5A CN202110922237A CN113522550A CN 113522550 A CN113522550 A CN 113522550A CN 202110922237 A CN202110922237 A CN 202110922237A CN 113522550 A CN113522550 A CN 113522550A
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- Prior art keywords
- nozzle
- flow
- flow guide
- swing
- runner
- Prior art date
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003245 coal Substances 0.000 title abstract description 26
- 239000002002 slurry Substances 0.000 title abstract description 25
- 239000003250 coal slurry Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 239000011449 brick Substances 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000000889 atomisation Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/14—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with oscillating elements; with intermittent operation
- B05B3/16—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with oscillating elements; with intermittent operation driven or controlled by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0466—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the central liquid flow towards the peripheral gas flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0475—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the peripheral gas flow towards the central liquid flow
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The invention relates to the technical field of coal water slurry preparation equipment, and discloses an atomizing nozzle for coal water slurry production. The atomizer for producing the coal water slurry is vertically arranged by the flow guide block and is divided into two blocks which are arranged at intervals, so that the direction of changing the flow direction in each flow channel is consistent, the flow of the oxygen and water-coal slurry in the inner flow channel, the middle flow channel and the outer flow channel firstly strikes the lower part of the flow guide block to drive the inner nozzle, the middle nozzle and the outer nozzle to swing downwards, then the flow upwards strikes the inner wall of each flow channel to drive the inner nozzle, the middle nozzle and the outer nozzle to swing upwards, the swinging force is transmitted through the bracket, so that the inner nozzle, the middle nozzle and the outer nozzle swing at the same frequency to achieve resonance, and the inner nozzle, the middle nozzle and the outer nozzle are driven to rotate in the same frequency, because the up-and-down swing does not generate the offset of the left side and the right side, and because of the resonance, the swing amplitude is the same, the up-and-down offset can not occur when the inner nozzle, the middle nozzle and the outer nozzle swing, and the service life of the refractory brick can not be reduced when the nozzles spray and burn.
Description
Technical Field
The invention relates to the technical field of coal water slurry preparation equipment, in particular to an atomizing nozzle for coal water slurry production.
Background
The water-coal-slurry nozzle is a key device in the water-coal-slurry pressurized gasification technology, the working effect and the service life of the water-coal-slurry nozzle determine the working effect of a gasification furnace, the economic benefit of an enterprise is influenced, the nozzle works in a high-temperature and high-pressure environment, the structure of the water-coal-slurry nozzle is composed of an inner nozzle, a middle nozzle and an outer nozzle which are coaxially sleeved from inside to outside and provided with a streamline front closing end, the water-coal-slurry nozzle is in a three-flow type internal and external mixed atomization mode, an outer flow channel and an inner flow channel convey high-pressure oxygen, a middle flow channel convey high-pressure water-coal-slurry, the oxygen of the inner flow channel is mixed with the water-coal-slurry of the middle flow channel in a semi-premixing mode and then is mixed with outer epoxy at a nozzle to be atomized and combusted, and a cooling water cavity is arranged at the outer head of the nozzle to protect the nozzle.
During the use process, the coaxiality of the water-coal-slurry nozzle is easy to deviate, the formed jet flame can obviously deviate to the direction with narrower annular gap, and erosion and high-temperature radiation are formed on the refractory bricks on the deviated side after long-term operation.
Disclosure of Invention
The invention provides an atomizing nozzle for producing coal water slurry, which has the advantages of no clearance deviation and long service life of refractory bricks, and solves the problems of coaxial deviation of nozzles, deviation of sprayed combustion flame and reduction of service life of refractory bricks.
The invention provides the following technical scheme: the utility model provides a coal slurry production is with atomizer, includes interior nozzle, the coaxial cover in outside of interior nozzle is equipped with well nozzle, the coaxial cover in outside of well nozzle is equipped with outer nozzle, install the support between interior nozzle and the well nozzle, install another support between well nozzle and the outer nozzle, the inner chamber of interior nozzle forms the inner flow way, form well runner between well nozzle and the interior nozzle, form outer runner between well nozzle and the outer nozzle, fixed mounting has the water conservancy diversion piece in interior runner, well runner, the outer runner separately, the water conservancy diversion piece is vertical installation on same vertical line.
Preferably, the flow guide block is divided into two blocks which are arranged at intervals, and the opposite surfaces of the two blocks are curved surfaces.
Preferably, the width of the flow guide block is smaller than the diameter of the corresponding flow channel.
Preferably, a pressurizing block is fixedly mounted on the inner surface of the inner nozzle and positioned on the right side of the flow guide block, a first circulation hole is formed in the inner part of the inner nozzle and matched with the pressurizing block, and a second circulation hole is formed in the upper side and the lower side of the middle nozzle and positioned on the right side of the flow guide block.
The invention has the following beneficial effects:
1. the atomizer for producing the coal water slurry is vertically arranged by the flow guide block and is divided into two flow guide blocks which are arranged at intervals, so that the directions of changing the flow directions in each flow guide block are consistent, the flows of oxygen and the coal water slurry in the inner flow guide block, the middle flow guide block and the outer flow guide block firstly impact the lower part of the flow guide block to drive the inner nozzle, the middle nozzle and the outer nozzle to swing downwards and then upwards flow to impact the inner wall of each flow guide channel to drive the inner nozzle, the middle nozzle and the outer nozzle to swing upwards, the swinging force is transmitted by the bracket, the inner nozzle, the middle nozzle and the outer nozzle swing at the same frequency to achieve resonance, so that the inner nozzle, the middle nozzle and the outer nozzle cannot generate deviation on the left side and the right side in the using process due to the vertical swinging, the swinging amplitude is the same due to the resonance, the swinging of the inner nozzle, the middle nozzle and the outer nozzle cannot generate the upper and lower side deviation, and the service life of refractory bricks cannot be reduced due to the spraying and burning of the nozzles, and because of the swing of the nozzle, the coverage of the sprayed combustion flame is wider, the service life of the refractory brick is further prolonged, the sprayed liquid is easier to disperse under the swing, the flow rate is further increased, and the atomization effect of the nozzle is better.
2. This atomizer is used in coal water slurry production, set up through opening one, and under the cooperation of pressure boost piece, high-pressure oxygen in the interior runner flows through hole one pressure, can extrude from opening one, in getting into the runner, increase the coal water slurry air content in the runner, make its molecular gap increase, collision atomization effect is better during the blowout, and under the water conservancy diversion piece water conservancy diversion is with higher speed, the coal water slurry local pressure boost in the runner, make it get into in the outer runner through opening two, by the interior high-pressure oxygen breakage of outer runner, collide with spun coal water slurry when the blowout, compare in the wind to the fracture of liquid surface tension, the impact of liquid drop is stronger to the broken atomization effect of coal water slurry, the atomization effect of nozzle has further been improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a side sectional structural schematic view of the present invention.
In the figure: 1. an inner nozzle; 2. a middle nozzle; 3. an outer nozzle; 4. a support; 5. an inner flow passage; 6. a middle flow passage; 7. an outer flow passage; 8. a flow guide block; 9. a pressure increasing block; 10. a first circulation hole; 11. and a second circulation hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an atomizer for producing coal water slurry comprises an inner nozzle 1, a middle nozzle 2 coaxially sleeved outside the inner nozzle 1, an outer nozzle 3 coaxially sleeved outside the middle nozzle 2, a support 4 installed between the inner nozzle 1 and the middle nozzle 2, another support 4 installed between the middle nozzle 2 and the outer nozzle 3, an inner flow channel 5 formed in an inner cavity of the inner nozzle 1, a middle flow channel 6 formed between the middle nozzle 2 and the inner nozzle 1, an outer flow channel 7 formed between the middle nozzle 2 and the outer nozzle 3, flow guide blocks 8 fixedly installed in the inner flow channel 5, the middle flow channel 6 and the outer flow channel 7 respectively, the flow guide blocks 8 vertically installed on the same vertical line, the flow guide blocks 8 are divided into two blocks, two opposite surfaces of the flow guide blocks 8 are curved surfaces, so that the flow direction changed in each flow channel is the same, the flow of oxygen-coal slurry in the inner flow channel 5, the middle flow channel 6 and the outer flow channel 7 first impacts the lower part of the flow guide blocks 8, the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 are driven to swing downwards and then flow upwards to impact the inner wall of each flow channel, the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 are driven to swing upwards, the swinging force is transmitted through the support 4, the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 swing at the same frequency, resonance is achieved, the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 cannot deviate from the upper side and the lower side due to the vertical swing in the using process, the service life of the refractory brick cannot be shortened due to the spraying and burning of the nozzles, the coverage range of the spraying and burning flame is wider due to the swinging of the nozzles, the service life of the refractory brick is further prolonged, the sprayed liquid is more easily dispersed under the swinging, the flow rate is further increased, the atomizing effect of the nozzles is better, the width of the flow guide block 8 is smaller than the diameter of the corresponding flow channel, after the high-pressure oxygen and water coal slurry impact the flow guide block 8, the high-pressure oxygen and water coal slurry can flow through the flow guide interval and two sides of the flow guide block 8 at high speed, negative pressure is formed on the back of the flow guide block 8 to influence the high-pressure oxygen and water coal slurry, the flow direction of the high-pressure oxygen and water coal slurry is changed, impact crushing and mixing are formed on the high-pressure oxygen entering from the first flow hole 10 and the water coal slurry entering from the second flow hole 11 at different angles, the high-pressure oxygen and water coal slurry is good in effect of overcoming liquid surface tension and good in mixing and atomizing effect when being conveyed to an outlet, the pressurizing block 9 is fixedly arranged on the inner surface of the inner nozzle 1 and positioned on the right side of the flow guide block 8, the first flow hole 10 is formed in the inner nozzle 1 and matched with the pressurizing block 9, the second flow hole 11 is formed in the upper side and the lower side of the middle nozzle 2 and positioned on the right side of the flow guide block 8, so that the high-pressure oxygen in the inner flow passage 5 can be extruded from the first flow hole 10 and enter the middle flow passage 6 to increase the air content of the water coal slurry in the middle flow passage 6, the molecular gap is increased, the collision atomization effect is better during spraying, under the guiding acceleration of the flow guide block 8, the coal water slurry in the middle flow channel 6 is locally pressurized, enters the outer flow channel 7 through the second circulation hole 11 and is crushed by high-pressure oxygen in the outer flow channel 7, and collides with the sprayed coal water slurry during spraying, compared with the crushing of wind on the surface tension of the liquid, the collision of liquid drops on the coal water slurry is stronger, and the atomization effect of the nozzle is further improved.
The working principle of the nozzle of the invention is as follows:
high-pressure oxygen flows in the inner flow passage 5 and the outer flow passage 7 to be conveyed, high-pressure coal water slurry is conveyed in the middle flow passage 6, in the conveying process, the high-pressure oxygen and the high-pressure coal water slurry vertically towards the top and the bottom in the nozzle can be guided by the corresponding flow guide blocks 8, firstly, the high-pressure coal water slurry impacts the lower blocks of the flow guide blocks 8 to ensure that the nozzle has downward swing amplitude, then, the nozzle upwards impacts the inner surface of the corresponding nozzle along the interval guide of the flow guide blocks 8 to ensure that the nozzle has upward swing amplitude, under the transmission of the support 4, the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 swing and mutually transmit the swing force to achieve the resonance effect of same-frequency swing, gaps among the inner nozzle 1, the middle nozzle 2 and the outer nozzle 3 cannot deviate, the flow rate of the high-pressure oxygen and water coal water slurry is increased when the high-pressure oxygen and water coal water slurry impacts the flow into the flow guide blocks 8, and then, the high-pressure coal water and water coal water slurry needs to be filled on the back of the flow guide blocks 8, the flow direction of partial high-pressure oxygen and water-coal slurry is changed, high-pressure air in the inner runner 5 can enter the middle runner 6 through the first circulation hole 10 under the convergence and pressurization effects of the pressurization block 9 to be mixed with the water-coal slurry, the flow direction of the water-coal slurry on the back surface of the flow guide block 8 in the middle runner 6 is changed, the high-pressure oxygen entering from the first circulation hole 10 is collided and mixed, the water-coal slurry in the middle runner 6 enters the outer runner 7 through the second circulation hole 11 under the accelerated guiding of the flow guide block 8, is crushed and mixed, and is mixed and atomized at an outlet.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a coal slurry production is with atomizer, includes interior nozzle (1), its characterized in that: the outer coaxial cover of interior nozzle (1) is equipped with well nozzle (2), the outer coaxial cover of well nozzle (2) is equipped with outer nozzle (3), install support (4) between interior nozzle (1) and well nozzle (2), install another support (4) between well nozzle (2) and outer nozzle (3), the inner chamber of interior nozzle (1) forms interior runner (5), form well runner (6) between well nozzle (2) and interior nozzle (1), form outer runner (7) between well nozzle (2) and outer nozzle (3), fixed mounting has water conservancy diversion piece (8) in interior runner (5), well runner (6), outer runner (7) separately, water conservancy diversion piece (8) are vertical installation on same vertical line.
2. The atomizer of claim 1, wherein: the flow guide blocks (8) are arranged at intervals, and the opposite surfaces of the two flow guide blocks (8) are curved surfaces.
3. The atomizer of claim 1, wherein: the width of the flow guide block (8) is smaller than the diameter of the corresponding flow channel.
4. The atomizer of claim 1, wherein: the inner surface of the inner nozzle (1) is fixedly provided with a pressurizing block (9) on the right side of the flow guide block (8), the inner part of the inner nozzle (1) is provided with a first circulation hole (10) in a matching manner with the pressurizing block (9), and the upper side and the lower side of the middle nozzle (2) are provided with a second circulation hole (11) on the right side of the flow guide block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922237.5A CN113522550B (en) | 2021-08-12 | 2021-08-12 | Atomizing nozzle for producing coal water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110922237.5A CN113522550B (en) | 2021-08-12 | 2021-08-12 | Atomizing nozzle for producing coal water slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113522550A true CN113522550A (en) | 2021-10-22 |
| CN113522550B CN113522550B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110922237.5A Active CN113522550B (en) | 2021-08-12 | 2021-08-12 | Atomizing nozzle for producing coal water slurry |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0268432A2 (en) * | 1986-11-13 | 1988-05-25 | National Research Council Of Canada | An atomizing nozzle assembly |
| CN202137071U (en) * | 2011-06-30 | 2012-02-08 | 神华集团有限责任公司 | Gasification nozzle |
| CN102492479A (en) * | 2011-12-28 | 2012-06-13 | 上海锅炉厂有限公司 | Three-channel slurry fuel gasification burner |
| CN205035330U (en) * | 2015-10-22 | 2016-02-17 | 中国石油大学(华东) | Take inside and outside multistage gasification nozzle of coal slurry that mixes of three channels of swirler |
| CN212349165U (en) * | 2020-03-20 | 2021-01-15 | 北京国利衡清洁能源科技(集团)有限公司 | Gasifying agent and water mixed atomizing nozzle |
-
2021
- 2021-08-12 CN CN202110922237.5A patent/CN113522550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0268432A2 (en) * | 1986-11-13 | 1988-05-25 | National Research Council Of Canada | An atomizing nozzle assembly |
| CN202137071U (en) * | 2011-06-30 | 2012-02-08 | 神华集团有限责任公司 | Gasification nozzle |
| CN102492479A (en) * | 2011-12-28 | 2012-06-13 | 上海锅炉厂有限公司 | Three-channel slurry fuel gasification burner |
| CN205035330U (en) * | 2015-10-22 | 2016-02-17 | 中国石油大学(华东) | Take inside and outside multistage gasification nozzle of coal slurry that mixes of three channels of swirler |
| CN212349165U (en) * | 2020-03-20 | 2021-01-15 | 北京国利衡清洁能源科技(集团)有限公司 | Gasifying agent and water mixed atomizing nozzle |
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| Publication number | Publication date |
|---|---|
| CN113522550B (en) | 2024-05-31 |
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