CN208124339U - Two-stage adjusts gas-particle two-phase fluidic distributor - Google Patents
Two-stage adjusts gas-particle two-phase fluidic distributor Download PDFInfo
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- CN208124339U CN208124339U CN201721800014.7U CN201721800014U CN208124339U CN 208124339 U CN208124339 U CN 208124339U CN 201721800014 U CN201721800014 U CN 201721800014U CN 208124339 U CN208124339 U CN 208124339U
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Abstract
Provided by the utility model is a kind of two-stage adjusting gas-particle two-phase fluidic distributor, and primary structure is sequentially connected and is formed by vortex segmentation fairing, venturi throttling set and gas-solid two-phase partitioning regulating device three parts.Vortex segmentation fairing is connected with main wind powder conveyance conduit, in the blade and the guide ring coaxially arranged with shell of rice font arrangement built in cylindrical housings.The inner wall shape of the venturi throttling set is the arc-shaped hyperbola arranged centered on its cylindrical outer wall axis.The gas-particle two-phase distribution regulating device outlet is connect with branch pipe, and inside cavity is provided with two-stage regulating device：Level-one solid phase regulating device and second level fine regulating device.The distributor is high to the evenly distributed degree of wind powder amount, degree of regulation is high, it can effectively disappear because of the whirl pulsation phenomenon generated except solid phase particles flowing, be widely used in various complicated wind powder conveyance conduits, and have many advantages, such as that small in size, structure is simple, easily operated.
Description
Technical field
The utility model belongs to Dual-Phrase Distribution of Gas olid transportation art, is related to a kind of two-stage adjusting gas-particle two-phase fluidic distributor, should
New structural distributor can evenly distribute the wind powder air-flow in main delivery pipe to downstream peer branch pipe, Dual-Phrase Distribution of Gas olid
One important applied field of distributor is applied in coal-fired boiler in thermal power plant pulverized coal preparation system.
Background technique
Gas-particle two-phase fluidic distributor is to evenly distribute primary wind and powder air-flow to the device of downstream peer branch pipe, some all
Such as thermal power industry, petrochemical industry in mechanical heavy industry industry, there is very the uniformity of primary wind and powder amount distribution
High requirement, safety, high efficiency, economy and the environmental protection that the uniformity of primary wind and powder amount distribution will run upstream device
Property generate large effect.By taking thermal power plant as an example, current large size firepower electrical plant coal-burning boiler mostly uses medium-speed pulverizer straight
Formula pulverized coal preparation system is blown, usually every coal pulverizer needs while being more burner powder supplies, if the wind powder amount point between each burner
With uneven, it will generate that thermal deviation, localized hyperthermia, high temperature corrosion, load be unstable, NO in boiler internalXDischarge amount increase,
The series of negative such as temperature and pressure oscillation influence.Gas-particle two-phase fluidic distributor is in coal-fired boiler in thermal power plant pulverized coal preparation system
Application be referred to as pulverized coal distributor, power industry standard《Thermal power plant coal dust preparation system design standard and calculation method》
（DL/T5154-2002）It is expressly provided in 8th article, certain type of coal powder distribation must be installed in unit pulverized-coal system
Device ensures evenly distributing for the coal dust and air between each primary air piping of burner at the same level, and air quantity difference is not more than ± 8%,
Coal powder distribation deviation is not more than ± 10%.
Currently what domestic use was more is the Dual-Phrase Distribution of Gas olid dispenser technology of following three kinds of forms.The first is grid type
Distributor, the distributor are the dispenser technologies that China uses earliest, and total distribution is inclined in actual application for the distributor
Difference is larger, and deviation range is in ± 25-35% or so.Second is Venturi type distributor, and the distributor is total in practical applications
Reachable ± the 20-40% of deviation is distributed, wind powder amount distribution effects is unstable, need to increase throttleng surface to pursue higher distribution effects
Product, but the biggish pressure loss can be generated while increase orifice size.The third is in coal-fired boiler in thermal power plant powder
The double DUALLY ADJUSTABLE PULVERIZED COALs applied in system, which can distribute wind powder amount deviation control ± 10% or so, but divide
It is poor to wind component distribution effects in the non-uniform situation of orchestration entrance solid concentration measurement, and double DUALLY ADJUSTABLE PULVERIZED COAL sheets
Body structure is complicated, and occupied space is larger, brings inconvenience to manufacture installation, the adjusting intricate operation of device when equipment is run,
It needs the long-term timed patrol of staff and is adjusted according to the actual operation, increase operation and maintenance cost.
To sum up, it is poor to there is wind powder amount distribution effects in traditional gas-particle two-phase fluidic distributor in practical applications, wind powder amount point
Larger with deviation, structure is complicated, and operating cost is high, higher to in-site installation status requirement, and biggish pressure is generated in operational process
The disadvantages of power is lost.Furthermore existing Dual-Phrase Distribution of Gas olid dispenser technology does not consider to eliminate, and solid particle is in primary wind and powder
During flowing in main pipeline, because being influenced by complicated pipeline contour structures, and vortex, eddy flow, pulsation, flow field are generated
Disorder phenomenon, so as to cause the wind powder amount of each branch outlet of distributor big ups and downs the problem of.Therefore, the utility model
Inventor needs to conceive a kind of new technology to improve its problem
Summary of the invention
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of new structural two-stage tune
Solar term fixed double phase flow distributor.The utility model combines the advantages of existing venturi distributor and double adjustable distributors, realizes
The adjustable function of evenly distributing of the multistage of air quantity and powder amount in equipment running process, and have wind powder amount distribution deviation it is small,
Degree of regulation is improved, the dispenser system generation pressure loss is reduced, is eliminated significantly because solid phase particles are in complex pipeline
Vortex, the eddy flow phenomenon of flowing and generation, it is low to the requirement of distributor Inlet dust even concentration, it is widely used in various complexity
The main powder pipeline of primary wind and powder, it is small in size, structure is simple, easily operated the advantages that.
The technical solution of the utility model is：
A kind of two-stage adjusting gas-particle two-phase fluidic distributor, primary structure is by vortex segmentation fairing, venturi throttling dress
It sets and is sequentially connected composition with gas-solid two-phase partitioning regulating device three parts.
Wherein the vortex segmentation fairing is connected with main wind powder pipe road, and outlet is connect with venturi throttling set.
The vortex segmentation fairing shell is cylinder, the built-in whirlpool being made of primary blades, back blades and guide ring of the shell
Stream segmentation rectifier, homepage piece and back blades arrange that guide ring is coaxially arranged with shell in rice font.The primary blades are by two pieces
Rectangular guiding plate square crossing composition, homepage piece placed angle it is parallel with the axial direction that main wind powder pipe road enters orchestration bend pipe or
Vertically.The blocking of solid phase particles in order to prevent, the back blades is by four pieces of disjoint rectangular guiding board groups at back blades is divided equally
It is distributed in the gap of primary blades.
Preferably, the height of the vortex segmentation fairing is equal with the radius R in main wind powder pipe road.
Preferably, the primary blades of the vortex segmentation fairing and back blades are arranged in rice font, guide ring and shell
It is coaxially arranged.
Preferably, the angle between the back blades and primary blades is 45 °.
Preferably, the radius of the guide ring takes the 5/6R of main wind powder pipe road radius.
The venturi throttling set entrance is connected with the outlet of vortex segmentation fairing, and outlet is distributed with gas-particle two-phase
Regulating device bottom transition section main pipe is connected.The venturi throttling set outer wall is cylindrical housings, and the inner wall shape is
The arc-shaped hyperbola being arranged symmetrically centered on outer wall axis.
Preferably, the height of the venturi throttling set is equal with the radius R in main wind powder pipe road.
Preferably, the venturi inner wall hyperbolic shape meets following formula：
36x2-44y2=25R2
Wherein using venturi throttling set casing center as origin, the axis of inner wall is y-axis, by origin text and y-axis
Vertical radial direction is x-axis, and the radius in the main wind powder pipe road is R.
The gas-particle two-phase distributes regulating device main body：The changeover portion main pipe that is sequentially communicated is built-in with level-one solid phase
The gas-particle two-phase of regulating device and second level fine regulating device distributes regulating device and export distributor branch pipe, wherein the changeover portion
Main pipe is connected with the outlet of venturi throttling set, and the export distributor branch pipe quantity is 2.The gas-particle two-phase distribution adjusts dress
The cavity set is built-in with upper layer and lower layer two-stage flow regulator：Lower layer's level-one solid phase regulating device and upper layer second level fine adjustment dress
It sets.The level-one solid phase regulating device is located at position on the lower side in the middle part of cavity, by two pieces of rectangular guiding board groups in deflector
Central cross-section of the heart rotary shaft in the horizontal direction with gas-particle two-phase distribution regulating device cavity is symmetric.The second level is micro-
Regulating device is located at adjuster cavity top center, and the rotary shaft is located at the top of fine regulating device deflector.Institute
The tune of angle can be carried out according to the situation of the practical wind powder amount distribution in scene by stating level-one solid phase regulating device and second level fine regulating device
It is whole.
Preferably, the centre rotational axis of the level-one solid phase regulating device deflector and gas-particle two-phase regulating device shell top
The distance of plate should be greater than 1/2L less than 2/3L, and wherein the height of the shell of gas-particle two-phase distribution regulating device is L.
Preferably, the centre rotational axis of two blocks of rectangular guiding plates of the level-one solid phase regulating device is in the horizontal direction
Spacing is 4/3R, wherein main wind powder pipe road radius is R.
Compared with prior art, the utility model has the following advantages that：
1. realizing, the multistage of air quantity and powder amount in equipment running process is adjustable to be evenly distributed, and wind powder distribution of air flow is inclined
Difference is small；
2. degree of regulation is high, easily operated；
3. reducing the pressure loss due to reducing orifice size compared with Venturi type distributor；
4. eliminating the vortex generated because solid phase particles flow in complex pipeline, eddy flow and pulsation phenomenon significantly, make
The flow for flowing out the Dual-Phrase Distribution of Gas olid of distributor is more stable；
5. low to entrance distributor entrance solid concentration uniformity requirements；
6. it is small in size, structure is simple, it is widely used in various complicated wind powder transport pipelines.
Detailed description of the invention
Fig. 1 be it is described in the utility model, be mounted on two-stage on main wind powder pipe road and adjust gas-particle two-phase fluidic distributor
The perspective view of main view direction, it is shown that the two-stage adjusts gas-particle two-phase fluidic distributor main feature；
Fig. 2 is the structural schematic diagram of vortex segmentation rectifier described in the utility model；
Fig. 3 is the structural schematic diagram of venturi throttling set described in the utility model；
Fig. 4 is the structural schematic diagram that gas-particle two-phase described in the utility model distributes regulating device；
In figure：1. vortex segmentation fairing, 2. venturi throttling sets, 3. gas-particle two-phases distribution regulating device, 4.
Main wind powder pipe road, 5. export distributor branch pipes, 6. vortex segmentation rectifier primary blades, 7. vortex segmentation rectifier back blades,
8. guide ring, 9. vortex segmentation fairing shells, the arc-shaped hyperbola inner wall of 10. venturi throttling sets, 11. literary mounds
In throttling set outer wall, 12. changeover portion main pipes, 13. level-one solid phase regulating devices, 14. level-one solid phase regulating device centers rotation
Shaft, 15. gas-particle two-phase regulating device shells, 16. second level fine regulating devices, 17. second level fine regulating device centre rotational axis.
Specific embodiment
The utility model is described in further detail with example with reference to the accompanying drawing：
Directional terminology described in the utility model such as "upper", "lower", "left", "right", "center", "horizontal", " top "
Etc. positional relationships be orientation based on the figure positional relationship, be merely for convenience of describing the present invention and simplifying the description
Rather than the particular orientation that instruction device or equipment must have, therefore should not be understood as limiting the present invention.
As shown in Figures 1 to 4, two-stage described in the utility model adjusts gas-particle two-phase fluidic distributor, primary structure by
Vortex segmentation fairing 1, venturi throttling set 2 and gas-solid two-phase partitioning regulating device 3, three parts are sequentially connected composition.
Wherein the vortex segmentation fairing 1 is connected with main wind powder pipe road 4, and outlet connects with venturi throttling set 2
It connects.The vortex segmentation fairing shell 9 is cylinder, and shell built in eddy current divides rectifier.The vortex segmentation is whole
Stream device is made of primary blades 6, back blades 7 and guide ring 8, and homepage piece 6 and back blades 7 are arranged in rice font, guide ring 8 and shell
9 is coaxially arranged.The primary blades 6 are made of two pieces of rectangular guiding plate square crossings, 6 placed angle of homepage piece and main wind powder pipe road
4 axial direction is parallel or vertical.The blocking of solid phase particles in order to prevent, the back blades 7 are led by four pieces of disjoint rectangles
Flowing plate composition, the back blades 7 are distributed in the gap of primary blades 6.
Preferably, the height of the vortex segmentation fairing 1 is equal with the radius R in main wind powder pipe road 4.
Preferably, the primary blades 6 of the vortex segmentation fairing and back blades 7 are arranged in rice font, guide ring 8 and shell
Body 9 is coaxially arranged.
Preferably, the angle between the back blades 7 and primary blades 6 is 45 °.
Preferably, the radius of the guide ring 8 takes the 5/6R of main 4 radius of wind powder pipe road.
The entrance of the venturi throttling set 2 is connected with the outlet of vortex segmentation fairing 3, outlet and gas-particle two-phase
3 bottom transition section main pipe 12 of regulating device is distributed to be connected.The venturi throttling set outer wall 11 is cylindrical housings, inner wall 10
Shape be the arc-shaped hyperbola being arranged symmetrically centered on outer wall axis.
Preferably, the height of venturi throttling set 2 is equal with main 4 radius R of wind powder pipe road.
Preferably, the venturi inner wall line hyperbolic shape meets following formula：
36x2-44y2=25R2
Described, using 11 center of shell of venturi throttling set as origin, the axis of circular arc hyperbola inner wall 10 is y-axis,
It is x-axis by the origin text radial direction vertical with y-axis, main 4 radius of wind powder pipe road is R.
The gas-particle two-phase distributes 3 main body of regulating device：The changeover portion main pipe 12 that is sequentially communicated, to be built-in with level-one solid
The gas-particle two-phase of phase regulating device 13 and second level fine regulating device 16 distributes the shell 15 and distributor branch pipe 5 of regulating device,
Described in the outlet of changeover portion main pipe 12 and venturi throttling set 2 be connected.In the gas-particle two-phase distribution regulating device cavity 15
It is equipped with upper layer and lower layer two-stage flow regulator：Lower layer's level-one solid phase regulating device 13 and upper layer second level fine regulating device 16.Its
Described in level-one solid phase regulating device 13 be located at position on the lower side in the middle part of cavity, by two pieces of rectangular guiding board groups at deflector
Central cross-section of the centre rotational axis 14 in the horizontal direction with gas-particle two-phase distribution regulating device cavity is in symmetrical cloth.The second level is micro-
Regulating device 16 is located at adjuster cavity top center, and the rotary shaft 17 is located at the top of fine regulating device 16.Its
The level-one solid phase regulating device 13 and second level fine regulating device 16 can carry out angle according to the situation of the practical wind powder amount distribution in scene
The adjustment of degree reduces the angle of left side solid phase regulating device 13 with horizontal plane when branch pipe 5 concentration of solid particles in left side is higher,
Increase the solid angle to regulating device 13 and horizontal plane in right side simultaneously, on the contrary then solid phase regulating device 13 and horizontal plane on the left of increasing
Angle, while reducing the solid angle to regulating device 13 and horizontal plane in right side, realized with this to the gas-particle two-phase distributor
The wind powder amount of each branch pipe evenly distributes.Finally by control second level fine regulating device 16, to distributor left and right ends branch pipe 5
The evenly distributed degree of wind powder amount carries out further high-precision fine adjustment.
Preferably, the centre rotational axis 14 of 13 deflector of level-one solid phase regulating device and gas-particle two-phase regulating device shell
The distance of 15 top plate of body should be greater than 1/2L less than 2/3L, and wherein the height of the shell 15 of gas-particle two-phase distribution regulating device is L.
Preferably, the centre rotational axis 14 of two blocks of rectangular guiding plates of the level-one solid phase regulating device 13 is in the horizontal direction
On spacing be 4/3R, wherein the radius in main wind powder pipe road 4 be R.
In order to verify the application effect that the two-stage adjusts gas-particle two-phase fluidic distributor, the utility model passes through CFD technology
Gas-particle two-phase fluidic distributor is adjusted to the gas-particle two-phase fluidic distributor and two-stage of no regulating device respectively and has carried out Transient mould
Quasi- comparative experiments, described two experimental programs are all made of identical model setting and same boundary conditions setting, and to distributor
Two branch outlet solid concentrations have carried out dynamic monitoring, test in simulation process every 1 second record, one group of data, a common mode
Flow distribution state of the Dual-Phrase Distribution of Gas olid in ten seconds in distributor is intended.
Two kinds of experimental programs the results are shown in Table 1 to the dynamic monitoring record that the solid concentration of two branch outlets of distributor carries out
With table 2：
Table 1. is supervised without the solid concentration CFD analogue simulation transient state of two branch outlets of regulating device gas-particle two-phase fluidic distributor
Survey record sheet
As shown in table 1, in the solid phase particles of the left side branch outlet of no regulating device gas-particle two-phase fluidic distributor 10 seconds
Mean concentration is 0.866 kg/m3The mean concentration 0.438 being far longer than in solid phase particles 10 seconds of its right side branch outlet
kg/m3.Analog result is shown：The solid phase particles distribution deviation of no regulating device gas-particle two-phase fluidic distributor is larger, to wind powder gas
The performance that stream evenly distributes is poor, and there are biggish waves for the solid phase particles concentration flux of the left and right sides branch outlet of distributor
Dynamic phenomenon.
The reason of causing above-mentioned phenomenon be：Limited by in-site installation position, between main wind powder pipe road and distributor away from
From often farther out, the main wind powder pipe road contour structures so as to cause connection distributor are more complicated, often in a main wind powder pipe
There can be many places elbow structure in road.Pipeline shape knot of the solid particle in main wind powder pipe road in flow process, by complexity
The influence of structure can generate stronger vortex, eddy flow, pulsation, flow field disorder phenomenon, lead to the solid phase particles into distributor entrance
Concentration distribution is uneven, and eddy flow and vortex phenomenon lead to the big ups and downs of the solid phase particles flow of each branch pipe of export distributor.
Furthermore solid phase particles can generate centrifugal force when flowing through the main wind powder pipe road elbow 4 in distributor upstream, under the influence of the centrifugal force, Gu
Phase particle is flowed to the distributor branch pipe 5 close to left side mostly, results in the solid phase particles stream of the distributor branch pipe 5 close to left side
Amount is significantly larger than the flow of the solid phase particles of right side distributor branch pipe 5.
2. two-stage of table adjusts the solid concentration CFD analogue simulation transient state monitoring of two branch outlets of gas-particle two-phase fluidic distributor
Record sheet
As shown in table 2, the two-stage under the conditions of identical simulation flowchart adjusts the left side branch pipe of gas-particle two-phase fluidic distributor
Mean concentration in solid phase particles 10 seconds of outlet is 0.651 kg/m3, in right side solid phase particles 10 seconds of branch outlet
Mean concentration is 0.633 kg/m3.Analog result is shown：Compared with no regulating device gas-particle two-phase fluidic distributor, two-stage tune
Solar term fixed double phase flow distributor can evenly distribute the wind powder amount in main wind powder pipe road, and wind powder distribution deviation is small, distribution
The solid phase particles concentration flux of device branch outlet is more stable.
The working principle of the utility model is：
In order to realize evenly distributing for each 4 apoplexy powder flow of branch pipe of export distributor, two-stage described herein adjusts gas-solid two
Phase partitioning device pass through first vortex segmentation fairing 1 will present in wind powder air-flow vortex, eddy flow be divided into it is several smaller
Vortex, eddy flow, rectified action is played to wind powder air-flow, the flowing of solid phase and gas phase is made to tend towards stability.Furthermore vortex segmentation
The effect of built-in guide ring is to counteract the distribution of partial solid phase particle due to by centrifugal force to the left in fairing 1
The trend that device outlet stool 5 flows.Vortex divides the eddy flow generated when fairing 1 flows Dual-Phrase Distribution of Gas olid, pulsation phenomenon
It significantly inhibits, while counteracting part higher influence of concentration on the left of solid phase particles caused by centrifugal force, it is right
The Flow Field Distribution of Dual-Phrase Distribution of Gas olid plays the role of rectification.
The venturi throttling set 2 increases the method for local resistance by throttle effect, and script concentration is made to be biased to left side
The solid phase particles of wall surface to pipeline center's regional diffusion, further obviate the centrifugal force of the generation of upstream elbow 4 to solid phase again
The influence of particle, solid phase and gas phase are re-mixed in venturi throttling set 2, improve the wind powder distribution of throttle position
Uniformity, improve the controllability that evenly distributes to gas-particle two-phase of gas-particle two-phase distribution regulating device 3.
It is micro- finally by the level-one solid phase regulating device 13 being built in gas-particle two-phase distribution regulating device 3 and second level
Regulating device 16 realizes that equipment adjusts control to the flow trace of gas-particle two-phase respectively, leads to the flow direction of wind powder stream
To.The main function of level-one solid phase regulating device 13 is to carry out overall be evenly distributed with to the gas-particle two-phase flow of export distributor branch pipe 5
It adjusts, the effect of second level fine regulating device 16 is on the basis that level-one solid phase regulating device 13 uniformly adjusts gas-particle two-phase flow
On to Dual-Phrase Distribution of Gas olid carry out fine adjustments, further increase wind powder distribution uniformity.It illustrates：When left side branch pipe 5 is solid
When phase granule density is higher, reduce the angle of left side level-one solid phase regulating device 13 with horizontal plane, while it is solid to increase right side level-one
The angle of phase regulating device 13 and horizontal plane, angle that is on the contrary then increasing solid phase regulating device 13 and horizontal plane on the left of level-one, together
When reduce the angle of right side level-one solid phase regulating device 13 with horizontal plane, realized with this and gas-particle two-phase flow point adjusted to the two-stage
Adjustable the evenly distributing of the wind powder amount of each branch pipe of orchestration.Finally by control second level fine regulating device 16, to left and right ends branch
The evenly distributed degree of the wind powder of pipe 5 carries out further high-precision fine adjustment.The whole of gas-particle two-phase fluidic distributor is adjusted in two-stage
Under stream, throttling and two-stage distribution adjustment effect, primary wind and powder air-flow is divided evenly to downstream peer branch pipe.
One embodiment of the utility model is described in detail above, but the content is only the utility model
The preferred embodiment of creation cannot be identified as limiting the scope of the utility model.It is all according to the utility model Shen
Please range made any simple modification, equivalent variations and remodeling, should all still in the utility model patent covering scope it
It is interior.
Claims (8)
1. a kind of novel two-stage adjusts gas-particle two-phase fluidic distributor, it is characterised in that its primary structure divides rectification dress by vortex
It sets, venturi throttling set and gas-solid two-phase partitioning regulating device three parts are sequentially connected composition；The vortex segmentation rectification dress
Posting port is connected with main wind powder conveyance conduit, and outlet is connect with venturi throttling set；The vortex divides fairing shell
Body is cylinder, and the built-in vortex being made of primary blades, back blades and guide ring of shell divides rectifier, homepage piece and accessory lobes
Piece arranges that guide ring is coaxially arranged with shell in rice font；The primary blades are made of two pieces of rectangular guiding plate square crossings, main
Hinge placed angle and the main wind powder pipe road axial direction for entering orchestration bend pipe are parallel or vertical；The back blades is by four pieces of not phases
The rectangular guiding board group of friendship at；The venturi throttling set entrance is connected with vortex segmentation fairing, outlet and gas-solid
Two-phase partitioning regulating device bottom transition section main pipe is connected；The venturi throttling set outer wall is cylindrical housings, inner wall shape
Shape is the arc-shaped hyperbola being arranged symmetrically centered on outer wall axis；The gas-particle two-phase distributes regulating device main body：
The changeover portion main pipe that is sequentially communicated is built-in with level-one solid phase regulating device and the gas-particle two-phase distribution of second level fine regulating device is adjusted
Device and export distributor branch pipe connected to it, wherein the changeover portion main pipe is connected with the outlet of venturi throttling set, institute
Stating distributor branch pipe quantity is 2；The gas-particle two-phase distribution regulator inside cavity is provided with the adjusting of upper layer and lower layer two-stage flow
Device：Lower layer's level-one solid phase regulating device and upper layer second level fine regulating device；Wherein the level-one solid phase regulating device is located at chamber
Position on the lower side in the middle part of body, by two pieces of rectangular guiding board groups at, the centre rotational axis of the deflector in the horizontal direction with gas-solid two
The central cross-section of phase partitioning adjuster cavity is symmetric；The second level fine regulating device is located at adjuster cavity top center
Position, the rotary shaft are located at the top of fine regulating device deflector；Its described level-one solid phase regulating device and second level fine adjustment
Device can carry out the adjustment of angle according to the situation of the practical wind powder amount distribution in scene.
2. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：The vortex segmentation rectification dress
The height set is equal with the radius R in main wind powder pipe road.
3. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：The vortex segmentation rectification dress
It sets built-in guide ring and its shell is coaxially arranged, the radius of the guide ring is the 5/6R of main wind powder pipe road radius.
4. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：The vortex segmentation rectification dress
The homepage piece and back blades set arrange that the angle between the back blades and primary blades is 45 ° in rice font.
5. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：Venturi coal dust throttling set
Height it is equal with main wind powder pipe road radius R.
6. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：Venturi throttling set it is interior
Wall hyperbolic shape meets following formula：
36x2-44y2=25R2
Wherein using venturi throttling set casing center as origin, inner wall axis is y-axis, by origin radial direction side vertical with y-axis
To for x-axis, the main wind powder pipe road radius is R.
7. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：The level-one solid phase adjusts dress
The centre rotational axis for setting deflector should be greater than 1/2L at a distance from gas-particle two-phase regulating device cover top plate and be less than 2/3L, wherein gas
Gu the height of the shell of two-phase partitioning regulating device is L.
8. two-stage adjusts gas-particle two-phase fluidic distributor according to claim 1, it is characterised in that：The level-one solid phase adjusts dress
The spacing of the centre rotational axis for the two blocks of rectangular guiding plates set in the horizontal direction is 4/3R, wherein main wind powder pipe road radius is R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800014.7U CN208124339U (en) | 2017-12-21 | 2017-12-21 | Two-stage adjusts gas-particle two-phase fluidic distributor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721800014.7U CN208124339U (en) | 2017-12-21 | 2017-12-21 | Two-stage adjusts gas-particle two-phase fluidic distributor |
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| Publication Number | Publication Date |
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| CN208124339U true CN208124339U (en) | 2018-11-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204601A (en) * | 2017-12-21 | 2018-06-26 | 北京博奇电力科技有限公司 | Two-stage adjusts gas-particle two-phase fluidic distributor |
| CN112963853A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Boiler system with flue distributor |
-
2017
- 2017-12-21 CN CN201721800014.7U patent/CN208124339U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204601A (en) * | 2017-12-21 | 2018-06-26 | 北京博奇电力科技有限公司 | Two-stage adjusts gas-particle two-phase fluidic distributor |
| CN112963853A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Boiler system with flue distributor |
| CN112963853B (en) * | 2020-07-30 | 2021-12-21 | 山东大学 | Boiler system with flue distributor |
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