CN114408585A - Gas-solid uniform distribution device for conveying pipeline - Google Patents
Gas-solid uniform distribution device for conveying pipeline Download PDFInfo
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- CN114408585A CN114408585A CN202210080541.4A CN202210080541A CN114408585A CN 114408585 A CN114408585 A CN 114408585A CN 202210080541 A CN202210080541 A CN 202210080541A CN 114408585 A CN114408585 A CN 114408585A
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- pipeline
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- uniform distribution
- conveying
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- 239000007787 solid Substances 0.000 title claims abstract description 57
- 238000009827 uniform distribution Methods 0.000 title claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 37
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 abstract description 7
- 230000000452 restraining effect Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/526—Adaptations of pipes or tubes with means for special treatment to facilitate transport
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
- B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
- B65G53/4616—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning parallel to flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
Abstract
The invention discloses a gas-solid uniform distribution device for a conveying pipeline, which comprises: a straight bobbin, a rotation-inhibiting blade group and at least two deflection-correcting blade groups; the device is used for being arranged at the outlet end of the bent pipeline and receiving and conveying solid particles driven by airflow; after solid particles flow to the straight cylindrical pipe along with air from the bent pipeline, the rotation degree of airflow formed by the bent pipeline is reduced through the rotation restraining blade group, and then the deflection distribution degree of the solid particles in the pipeline is reduced through the plurality of deflection correcting blade groups. The structure has low use cost, low implementation or modification difficulty and obvious effect. Through the combined action of the rotation restraining blade group and the plurality of deflection correcting blade groups, the deflection problem of solid particles caused by bending the conveying pipeline is solved, the problem of uneven distribution of the solid particles in the pipeline caused by long-distance pipeline conveying and pipeline bending is effectively solved, and the subsequent engineering process is facilitated.
Description
Technical Field
The invention relates to the field of industrial manufacturing production. In particular to a gas-solid uniform distribution device for a conveying pipeline.
Background
The two-phase flow taking gas as a carrier and solid particles as a carried object is widely applied in industrial production, and is commonly used in fluidized beds, drying processes, large-scale power station pulverized coal burners and the like. The gas and solid particle transportation mainly relates to the heat and mass transfer and chemical reaction between gas and solid particles, wherein the uniform distribution characteristic of the solid particles in a gas carrier is an important performance of the gas and solid transportation process. However, in the actual production process, the solid particles are inevitably deflected by gravity and centrifugal force due to long-distance transportation of the pipeline, bending of the pipeline and the like, so that the solid particles are unevenly distributed in the pipeline, and the downstream physical and chemical processes are adversely affected.
By taking the example of the coal burner of the coal-fired boiler of the power station, the primary air pipeline carrying coal dust particles is bent, so that the coal dust is greatly deviated to the outer side of the bent pipe after passing through the bent pipe, and when the outer side position is exactly consistent with the rotating direction of the inscribed circle flame of the tangent circle boiler, the large amount of coal dust deviated to the outer side is greatly washed away to the water-cooled wall, so that the coking and slagging degree of the water-cooled wall is aggravated, and the safe and economic operation of the boiler is not facilitated.
Therefore, how to provide an adjusting device for improving the deflection and maldistribution phenomenon of solid particles during the conveying process is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a gas-solid uniform distribution device for a conveying pipeline, which can improve the phenomena of deflection and uneven distribution of solid particles in the conveying process.
In order to achieve the above object, the present invention provides a gas-solid uniform distribution device for a conveying pipeline, comprising: the device is used for being arranged at an outlet of a bent pipeline and conveying solid particles in the bent pipeline, and is characterized by comprising a straight cylinder, wherein a rotation inhibiting blade group and at least two deflection correcting blade groups are sequentially arranged in the straight cylinder along the axial direction of the straight cylinder;
the rotation restraining blade group is used for reducing the rotation degree of the airflow in the bent pipeline;
the deflection correcting blade group is used for enabling solid particles to be evenly distributed in the conveying process.
Optionally, the rotation-inhibiting vane assembly comprises: the blade plates extend along the axial direction of the straight cylindrical pipe, and all the blade plates are crossed with the central axis of the straight cylindrical pipe;
and any two adjacent blade plates are arranged at an angle to ensure that the blade plates are uniformly arranged along the circumferential direction of the straight cylindrical pipe.
Optionally, the number of the vane plates is set to 3-24; and the length of any blade plate in the tangent direction of the straight cylindrical pipe is set to be 0.2-1.0 time of the pipe diameter of the straight cylindrical pipe.
Optionally, the deflection correcting blade set comprises: the fan-shaped blades are evenly distributed along the circumferential direction, and intervals are arranged between any two adjacent fan-shaped blades.
Alternatively, the fan blades each converge in the direction of conveyance of the solid particles.
Optionally, for any two adjacent sets of skew correcting blades: wherein one group of fan-shaped blades is arranged at intervals corresponding to the other group of fan-shaped blades.
Alternatively, the number of fan-shaped blades of a single deflection correcting blade group is set to 6-24.
Optionally, the skew-straightening vane assembly is secured inside the straight barrel by a leeward rib.
Compared with the prior art, the invention is provided with a straight bobbin, a rotation inhibiting blade group and at least two deflection correcting blade groups; the device is used for being arranged at the outlet end of the bent pipeline and receiving and conveying solid particles driven by airflow; after solid particles flow to the straight cylindrical pipe along with air from the bent pipeline, the rotation degree of airflow formed by the bent pipeline is reduced through the rotation restraining blade group, and then the deflection distribution degree of the solid particles in the pipeline is reduced through the plurality of deflection correcting blade groups. The structure has low use cost, low implementation or modification difficulty and obvious effect. The combined action of the preposed rotation restraining blade group and the plurality of deflection correcting blade groups effectively improves the problems of uneven distribution of solid particles in the pipeline caused by long-distance pipeline conveying and pipeline bending action. Compared with the prior art, the deflection problem of the solid particles caused by bending the conveying pipeline is improved, and the solid particles are further uniformly distributed, so that the subsequent engineering procedures are facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a gas-solid uniform distribution device for a conveying pipeline according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a rotation-inhibiting blade assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a rotation-inhibiting vane pack provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural view of a deflection correcting blade assembly according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a deflection correcting blade assembly provided by an embodiment of the present invention;
fig. 6 is an assembly view of the gas-solid uniform distribution device for the conveying pipeline provided by the embodiment of the invention.
Wherein:
1-straight bobbin, 2-rotation restraining blade group, 3-deflection correcting blade group, 4-blade plate and 5-fan-shaped blade.
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.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to the attached fig. 1 of the specification, fig. 1 is a schematic structural diagram of a gas-solid uniform distribution device of a conveying pipeline provided by an embodiment of the invention, and the gas-solid uniform distribution device comprises: a straight bobbin 1, a rotation-inhibiting blade group 2 and at least two skew-correcting blade groups 3. The device is used for being arranged at the outlet end of the bent pipeline and receiving and conveying solid particles driven by airflow; after solid particles flow to the straight cylindrical pipe 1 along with air from the bent pipeline, the degree of rotation of airflow formed by the bent pipeline is reduced through the preposed rotation inhibiting blade group 2, and then the degree of inclined distribution of the solid particles in the pipeline is reduced through the plurality of inclined correcting blade groups 3.
Conveying pipeline gas-solid evenly distributed device installs in the exit of the pipeline of buckling or the pipeline entrance that needs solid particle evenly distributed process in gaseous, and flange joint or welding are selected for use according to withstand voltage temperature tolerance to the mounting means, can select for use and not only be limited to selecting for use pressure-bearing pipeline or leak protection process pipeline and adopt this device of welding installation, and the great pipeline of transport load change can adopt this device of flange joint to, not only be limited to above-mentioned these mounting means, can change according to actual conditions, and this paper no longer expandes the repeated description.
The invention has low use cost, low implementation or modification difficulty and obvious effect. The problem of uneven distribution of solid particles in the pipeline caused by long-distance pipeline transportation and pipeline bending action is effectively solved through the combined action of the preposed rotation restraining blade group 2 and the plurality of deflection correcting blade groups 3. Compared with the prior art, the deflection problem of the solid particles caused by bending the conveying pipeline is improved, and the solid particles are further uniformly distributed, so that the subsequent engineering procedures are facilitated.
Further, referring to fig. 2 and fig. 3 of the specification, fig. 2 is a schematic structural diagram of a rotation suppression blade assembly provided in an embodiment of the present invention, and fig. 3 is a cross-sectional view of the rotation suppression blade assembly provided in the embodiment of the present invention, including: above-mentioned rotatory blade group 2 that restraines includes along the several lamina plates 4 of straight 1 axial extensions of bobbin, and the axis collineation of the middle part crossing of whole lamina plates 4 and straight bobbin 1, and be provided with certain angle between two adjacent lamina plates 4 wantonly to ensure that lamina plates 4 are whole along circumference evenly distributed, thereby make the rotatory air current of process all receive the restriction of certain degree, weaken its rotation inertia, finally reach the rotatory effect of solid particle.
Further, the optimal number range of the blade plates 4 obtained by the rotation inhibiting blade group 2 is limited within 3-24 sheets through research and experiments; and the length of any blade plate 4 along the tangential direction of the straight bobbin 1 is set to be 0.2-1.0 time of the pipe diameter of the straight bobbin 1. Within the range, the best effect is achieved, and the rotation degree of the airflow formed by bending the pipeline is reduced.
Further, referring to fig. 4 and fig. 5 in the specification, fig. 4 is a schematic structural diagram of a deflection correcting blade set according to an embodiment of the present invention, and fig. 5 is a cross-sectional view of the deflection correcting blade set according to the embodiment of the present invention, including: the deflection correcting blade group 3 is composed of the same circle of fan-shaped blades 5 which are separated by a certain distance, the distance included angle between the fan-shaped blades 5 is consistent with the angle alpha occupied by the single fan-shaped blade 5 in the circumference, and the fan-shaped blades 5 in the same group are contracted to a certain degree along the solid particle size conveying direction to play a role in guiding and centralizing.
Further, the number of the skew correcting blade groups 3 arranged in the pipeline conveying direction is not less than 2, and the installation direction of two adjacent front and back skew correcting blade groups 3 needs to be rotated by alpha degrees along the axial direction.
Further, through research and experiments, the optimal number range of the fan-shaped blades 5 obtained by the deflection correcting blade group 3 is limited within 6-24 pieces, and the optimal action effect is achieved by setting the optimal number range, so that the uniform dispersion effect of the solid particles is optimal.
Further, the skew correcting blade group 2 can be selected from the straight cylindrical pipe 1 and is not limited to the selection of the leeward side rib plate for fixation.
As shown in fig. 6, fig. 6 is an assembly view of a gas-solid uniform distribution device for a conveying pipeline according to an embodiment of the present invention, which includes: the following is an example of a 1000MW utility boiler primary air pulverized coal conveying pipeline. The primary air pulverized coal conveying pipeline in the embodiment is a multi-direction bent pipeline (the embodiment takes forward and downward bent pipelines as examples). Due to the centrifugal action of the multiple bent pipes in multiple directions before the device is installed, on one hand, pulverized coal and air flow form rotary flow in a pipeline, on the other hand, the pulverized coal is deflected to the outer side of the bent pipe elbow in the pipeline, and further the subsequent burnout characteristic and the contamination and slagging characteristic of the pulverized coal entering a boiler hearth are influenced. Appropriate devices are needed to distribute the pulverized coal uniformly in the pipeline after passing through the elbow.
The device in the embodiment is composed of a straight cylindrical pipe 1, a rotation inhibiting blade group 2, a front deflection correcting blade group 3, a rear deflection correcting blade group 3 and blade fixing reinforcing ribs. The installation mode of the device in the original pipeline adopts welding or flange connection, and the installation position is the outlet of the bent pipe. According to the structural optimization verification, the device adopts the following configuration scheme, so that the effect of uniformly distributing the pulverized coal particles is better. The number of the blade plates 4 arranged in the circumferential direction is 6, and the length of the blade plates 4 in the pipeline direction is 0.5 times of the pipe diameter of the pipeline. The front and rear deflection correcting blade groups 3 are composed of the same circle of fan-shaped blades 5 with a certain distance, and the distance included angle between the fan-shaped blades 5 is consistent with the angle alpha of the single fan-shaped blade 5 in the circumference, which is 20 degrees. The installation directions of the front and the rear groups of fan-shaped blades 5 rotate by 20 degrees along the axial direction, and the skew correction blade group 3 is fixed in the pipeline by a leeward side rib plate. The number of the fan-shaped blades 5 of the same circle of the deflection correcting blade group 3 is 9.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The gas-solid uniform distribution device of the conveying pipeline provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A gas-solid uniform distribution device of a conveying pipeline is used for being arranged at an outlet of a bent pipeline and conveying solid particles in the bent pipeline and is characterized by comprising a straight bobbin (1), wherein a rotation inhibiting blade group (2) and at least two deflection correcting blade groups (3) are sequentially arranged in the straight bobbin (1) along the axial direction of the straight bobbin;
the rotation inhibiting blade group (2) is used for reducing the rotation degree of the airflow in the bent pipeline;
the deflection correcting blade group (3) is used for enabling the solid particles to be evenly distributed in the conveying process.
2. Gas-solid uniform distribution device for transfer lines according to claim 1, characterized in that said rotation-inhibiting vane group (2) comprises: a plurality of blade plates (4) axially extending along the straight bobbin (1), and all the blade plates (4) are crossed with the central axis of the straight bobbin (1);
and any two adjacent blade plates (4) are arranged at an angle to ensure that the blade plates (4) are uniformly arranged along the circumferential direction of the straight bobbin (1).
3. The gas-solid uniform distribution device of the conveying pipeline as claimed in claim 2, wherein the number of the blade plates (4) is 3-24; and the length of any blade plate (4) in the tangential direction of the straight bobbin (1) is set to be 0.2-1.0 time of the pipe diameter of the straight bobbin (1).
4. A gas-solid uniform distribution device for conveying pipeline according to claim 3, characterized in that said deflection correcting blade set (3) comprises: the fan-shaped blades (5) are evenly distributed along the circumferential direction, and intervals are arranged between any two adjacent fan-shaped blades (5).
5. The gas-solid uniform distribution device of conveying pipeline according to claim 4, characterized in that the fan-shaped blades (5) are all contracted along the conveying direction of the solid particles.
6. Gas-solid uniform distribution device of conveying pipeline according to claim 5, characterized in that for any two adjacent deflection correcting blade sets (3): wherein one group of the fan-shaped blades (5) is arranged corresponding to the interval of the other group of the fan-shaped blades (5).
7. The gas-solid uniform distribution device of the conveying pipeline according to claim 6, characterized in that the number of the fan-shaped blades (5) of the single deflection correcting blade group (3) is set to be 6-24.
8. The gas-solid uniform distribution device of the conveying pipeline according to any one of claims 1 to 7, wherein the deflection correcting blade group (3) is fixed inside the straight bobbin (1) through a leeward side rib plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080541.4A CN114408585A (en) | 2022-01-24 | 2022-01-24 | Gas-solid uniform distribution device for conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080541.4A CN114408585A (en) | 2022-01-24 | 2022-01-24 | Gas-solid uniform distribution device for conveying pipeline |
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|---|---|
| CN114408585A true CN114408585A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210080541.4A Pending CN114408585A (en) | 2022-01-24 | 2022-01-24 | Gas-solid uniform distribution device for conveying pipeline |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197509A (en) * | 1990-06-06 | 1993-03-30 | Cheng Dah Y | Laminar flow elbow system and method |
| CN1598403A (en) * | 2004-09-10 | 2005-03-23 | 清华大学 | Circularly shirl coal powder burn device with various concentration coal powder pipe |
| CN201772451U (en) * | 2010-09-14 | 2011-03-23 | 深圳东方锅炉控制有限公司 | Coal dust burner with whirlwind auxiliary oil |
| CN103302031A (en) * | 2013-06-18 | 2013-09-18 | 华电电力科学研究院 | Dynamic pulverized coal separator adopting curved blades |
| CN203476813U (en) * | 2013-09-26 | 2014-03-12 | 沈阳透平机械股份有限公司 | Elbow diversion device of centrifugal compressor inlet pipeline |
| CN204026721U (en) * | 2014-07-03 | 2014-12-17 | 烟台龙源电力技术股份有限公司 | Coal dust classifier and pulverized-coal fired boiler |
| CN204901752U (en) * | 2015-08-18 | 2015-12-23 | 烟台龙源电力技术股份有限公司 | Coal burner |
| CN107091390A (en) * | 2016-02-18 | 2017-08-25 | 北京福田康明斯发动机有限公司 | Bend pipe structure, pipeline and straight tube structure |
| US20170246642A1 (en) * | 2016-02-29 | 2017-08-31 | General Electric Technology Gmbh | System, method and apparatus for controlling the flow distribution of solid particles |
| CN206861519U (en) * | 2017-07-05 | 2018-01-09 | 葫芦岛市华能工业陶瓷有限公司 | Double adjustable high precision pulverized coal distributors of adjustable guiding device are carried in inlet elbow |
| 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 |
| CN109230549A (en) * | 2018-10-11 | 2019-01-18 | 中国矿业大学 | A kind of compound pneumatic conveying eddy flow bend pipe |
| CN110270189A (en) * | 2019-07-17 | 2019-09-24 | 西华大学 | A kind of guide-vane high pressure cyclone separator |
| CN113669723A (en) * | 2021-08-18 | 2021-11-19 | 哈尔滨锅炉厂有限责任公司 | Powder homogenizing device for eliminating powder deviation effect of coal powder pipeline elbow |
-
2022
- 2022-01-24 CN CN202210080541.4A patent/CN114408585A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197509A (en) * | 1990-06-06 | 1993-03-30 | Cheng Dah Y | Laminar flow elbow system and method |
| CN1598403A (en) * | 2004-09-10 | 2005-03-23 | 清华大学 | Circularly shirl coal powder burn device with various concentration coal powder pipe |
| CN201772451U (en) * | 2010-09-14 | 2011-03-23 | 深圳东方锅炉控制有限公司 | Coal dust burner with whirlwind auxiliary oil |
| CN103302031A (en) * | 2013-06-18 | 2013-09-18 | 华电电力科学研究院 | Dynamic pulverized coal separator adopting curved blades |
| CN203476813U (en) * | 2013-09-26 | 2014-03-12 | 沈阳透平机械股份有限公司 | Elbow diversion device of centrifugal compressor inlet pipeline |
| CN204026721U (en) * | 2014-07-03 | 2014-12-17 | 烟台龙源电力技术股份有限公司 | Coal dust classifier and pulverized-coal fired boiler |
| CN204901752U (en) * | 2015-08-18 | 2015-12-23 | 烟台龙源电力技术股份有限公司 | Coal burner |
| CN107091390A (en) * | 2016-02-18 | 2017-08-25 | 北京福田康明斯发动机有限公司 | Bend pipe structure, pipeline and straight tube structure |
| US20170246642A1 (en) * | 2016-02-29 | 2017-08-31 | General Electric Technology Gmbh | System, method and apparatus for controlling the flow distribution of solid particles |
| CN206861519U (en) * | 2017-07-05 | 2018-01-09 | 葫芦岛市华能工业陶瓷有限公司 | Double adjustable high precision pulverized coal distributors of adjustable guiding device are carried in inlet elbow |
| 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 |
| CN109230549A (en) * | 2018-10-11 | 2019-01-18 | 中国矿业大学 | A kind of compound pneumatic conveying eddy flow bend pipe |
| CN110270189A (en) * | 2019-07-17 | 2019-09-24 | 西华大学 | A kind of guide-vane high pressure cyclone separator |
| CN113669723A (en) * | 2021-08-18 | 2021-11-19 | 哈尔滨锅炉厂有限责任公司 | Powder homogenizing device for eliminating powder deviation effect of coal powder pipeline elbow |
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