CN212039402U - Bias flow device is prevented to vertical runner flue gas - Google Patents
Bias flow device is prevented to vertical runner flue gas Download PDFInfo
- Publication number
- CN212039402U CN212039402U CN202020495085.6U CN202020495085U CN212039402U CN 212039402 U CN212039402 U CN 212039402U CN 202020495085 U CN202020495085 U CN 202020495085U CN 212039402 U CN212039402 U CN 212039402U
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- China
- Prior art keywords
- flue gas
- heat transfer
- cyclone
- bracing piece
- transfer case
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000003546 flue gas Substances 0.000 title claims abstract description 64
- 238000012546 transfer Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000009991 scouring Methods 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
The utility model relates to a vertical runner flue gas anti-deflection device, including the heat transfer case, the both ends of heat transfer case are provided with first flue gas import and second flue gas import respectively, the even vertical water-cooled wall tube of a plurality of groups of interval in the heat transfer case, seted up a plurality of exhanst gas outlet on the bottom plate of heat transfer case, the top correspondence of exhanst gas outlet is provided with guiding device, the bottom plate below is provided with cyclone system, cyclone system's below is provided with a plurality of ash buckets side by side, the bottom of each ash bucket is provided with the ash discharge valve, the lower extreme of ash discharge valve is connected with the ash discharge pipe; the flow of front flue gas is changed through the flow guide device, so that the front flue gas is uniformly dispersed, the front scouring force of the flue gas on a water-cooled wall is reduced, the flue gas uniformly enters the cyclone separation system from the flue gas outlet, solid particle impurities carried in the flue gas are removed through the cyclone separation system, and the problem of serious bias flow of the flue gas of the vertical flow channel is solved.
Description
Technical Field
The utility model relates to a boiler flue gas processing technology, concretely relates to inclined to one side flow device is prevented to vertical runner flue gas.
Background
With the continuous development of the industry in China, more and more situations and larger scales are provided for producing steam for life heating, process steam or power generation by using a boiler, some steam is produced by burning fossil fuel, and some steam is produced by using the existing industrial waste heat, so that considerable economic benefits are brought to China.
The flue gas bias flow is a common problem of boilers, and the small boiler has compact and simple structure, so that the flue gas bias flow problem of the boiler is not outstanding, and much attention cannot be paid; but as the boiler is larger and larger in size and more complex in structure, the flue gas bias flow problem is more and more prominent. The existing boiler design does not consider the problem of flue gas bias flow, so that the flue gas in the boiler is unevenly distributed, the larger the local flue gas flow is, the stronger the impact effect is, the surface of the heated metal of the pipeline is easy to wear, and the working performance and the service life are reduced; the local flue gas temperature is too high, and main parts of the equipment are easy to bend, deform and even burn, so that the utilization rate of a heating surface is low, the flue gas temperature is high, and the boiler efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bias flow device is prevented to vertical runner flue gas to solve the flue gas phenomenon of bias flow that appears in the boiler stove.
The purpose of the utility model can be realized through the following technical scheme: the utility model provides a device is prevented squinting by vertical runner flue gas, including the heat transfer case, the both ends of heat transfer case are provided with first flue gas import and second flue gas import respectively, the even vertical water-cooled wall pipe of a plurality of groups in heat transfer incasement interval has been provided with a plurality of exhanst gas outlet on the bottom plate of heat transfer case, exhanst gas outlet's top correspondence is provided with guiding device, the bottom plate below is provided with cyclone, cyclone's below is provided with a plurality of ash bucket side by side, the bottom of every ash bucket is provided with the ash discharge valve, the lower extreme of ash discharge valve is connected with the ash discharge pipe.
Among the above-mentioned technical scheme, the guiding device includes that the level sets up the first bracing piece on the heat transfer incasement wall, and the below parallel arrangement of first bracing piece has the second bracing piece, and the upper portion of first bracing piece evenly is provided with the first guide plate of a plurality of, is connected through a plurality of second guide plate between first bracing piece and the second bracing piece, and the sub-unit connection of second bracing piece has the third guide plate.
Among the above-mentioned technical scheme, the symmetry is provided with a plurality of fourth guide plate on first bracing piece and the second bracing piece, and fourth guide plate and the even interval distribution of second guide plate.
Among the above-mentioned technical scheme, second guide plate and third guide plate all are latticed structure, and the fourth guide plate is trapezoidal plate structure.
Among the above-mentioned technical scheme, cyclone separation system includes the cyclone that a plurality of set up side by side, and the air inlet on every cyclone corresponds the intercommunication with the exhanst gas outlet, and cyclone's ash discharge mouth and ash bucket intercommunication.
In the technical scheme, the inner wall of each ash bucket is symmetrically provided with the air cannons.
Compared with the prior art, the beneficial effects of the utility model are that: the heat exchange box is extended along the vertical section to realize capacity expansion design, so that the smoke has sufficient circulation space, the flow of the front smoke is changed through the flow guide device, and the front smoke is uniformly dispersed, so that the front scouring force of the smoke on the water-cooled wall is reduced, the smoke uniformly enters the cyclone separation system from the smoke outlet, and solid particle impurities carried in the smoke are removed through the cyclone separation system, so that the problem of serious bias flow of the smoke in the vertical flow channel is solved.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural view of a vertical flow channel flue gas bias flow preventing device according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of a flow guiding device in a vertical flow channel flue gas anti-deviation device according to an embodiment of the present invention.
Fig. 4 is a partial sectional view taken along line B-B in fig. 3.
Fig. 5 is a partial sectional view taken along line C-C in fig. 3.
The reference numbers shown in the figures denote: 1. a heat exchange box; 2. a water wall tube; 3. a flow guide device; 4. a first flue gas inlet; 5. a base plate; 6. an ash hopper; 7. an ash discharge valve; 8. an ash discharge pipe; 9. a second flue gas inlet; 10. a first baffle; 11. a first support bar; 12. a second baffle; 13. a second support bar; 14. a third baffle; 15. a fourth baffle; 16. a flue gas outlet; 17. a cyclonic separation system; 18. and (4) air cannons.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the structure of the present invention is: a vertical flow channel flue gas bias flow prevention device comprises a heat exchange box 1, a first flue gas inlet 4 and a second flue gas inlet 9 are respectively arranged at two ends of the heat exchange box 1, a plurality of groups of water wall tubes 2 are vertically arranged in the heat exchange box 1 at even intervals, a plurality of flue gas outlets 16 are arranged on a bottom plate 5 of the heat exchange box 1, a flow guide device 3 is correspondingly arranged above the flue gas outlets 16, a cyclone separation system 17 is arranged below the bottom plate 5, a plurality of ash hoppers 6 are arranged below the cyclone separation system 17 side by side, an ash discharge valve 7 is arranged at the bottom of each ash hopper 6, an ash discharge pipe 8 is connected at the lower end of each ash discharge valve 7, the heat exchange box 1 is extended along a vertical section to be subjected to capacity expansion design, so that the flue gas has sufficient circulation space, then the flow of the front flue gas is changed through the flow guide device 3 to be uniformly dispersed, thereby reducing the front scouring force of the flue gas on the water wall, and enabling the flue gas to, solid particle impurities carried in the flue gas are removed through the cyclone separation system 17, so that the problem of serious bias flow of the flue gas in the vertical flow channel is solved.
In the embodiment, the flow guiding device 3 comprises a first supporting rod 11 horizontally arranged on the inner wall of the heat exchange box 1, a second supporting rod 13 is arranged below the first supporting rod 11 in parallel, a plurality of first flow guiding plates 10 are uniformly arranged on the upper part of the first supporting rod 11, the first supporting rod 11 is connected with the second supporting rod 13 through a plurality of second flow guiding plates 12, a third flow guiding plate 14 is connected with the lower part of the second supporting rod 13, the front flue gas flow is changed by the first guide plate 10, the second guide plate 12 and the third guide plate 14 to be uniformly dispersed towards two sides, thereby reducing the front scouring force of the flue gas on the water-cooled wall, solving the problem of flue gas bias flow, leading the flue gas to uniformly scour the water-cooled wall tubes 2 in the heat exchange box 1, being beneficial to protecting the water-cooled wall tubes 2 in the middle area, and meanwhile, the overall heat transfer utilization rate of the water wall tube 2 is improved, and the smoke exhaust temperature of the boiler is reduced, so that the working efficiency of the boiler is improved.
In this embodiment, the first support bar 11 and the second support bar 13 are symmetrically provided with a plurality of fourth air deflectors 15, and the fourth air deflectors 15 and the second air deflectors 12 are uniformly distributed at intervals.
In this embodiment, second guide plate 12 and third guide plate 14 all are latticed structure, and fourth guide plate 15 is the trapezoidal plate structure, meets blockking, the reposition of redundant personnel effect of a plurality of guide plates when the flue gas gets into in heat transfer case 1, makes its toward 1 both sides homodisperse of heat transfer case to reduce the positive scouring force of flue gas to the water-cooling wall, solve the flue gas bias flow problem.
In this embodiment, the cyclone separation system 17 includes a plurality of cyclone separators arranged in parallel, an air inlet on each cyclone separator is correspondingly communicated with the flue gas outlet 16, a dust discharge port of each cyclone separator is communicated with the dust hopper 6, the flue gas is guided to enter a central cylinder of the cyclone separator, solid particle impurities and liquid drops carried in the flue gas are removed, the emission of flue gas dust is reduced, and meanwhile, the problem of serious bias flow of the flue gas in the vertical flow channel is solved.
In the embodiment, the air cannons 18 are symmetrically arranged on the inner wall of each ash bucket 6, and the inner walls of the ash buckets 6 are subjected to soot blowing treatment periodically through the air cannons 18, so that the ash accumulation on the inner walls of the ash buckets 6 is prevented, the flow passage area is reduced, and the problem of blockage of the ash buckets 6 is solved.
The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.
Claims (6)
1. The utility model provides a device that flows partially is prevented to vertical runner flue gas which characterized in that: including heat transfer case (1), the both ends of heat transfer case (1) are provided with first flue gas import (4) and second flue gas import (9) respectively, the even vertical water wall pipe (2) of a plurality of groups of interval in heat transfer case (1), a plurality of exhanst gas outlet (16) have been seted up on bottom plate (5) of heat transfer case (1), the top correspondence of exhanst gas outlet (16) is provided with guiding device (3), bottom plate (5) below is provided with cyclone (17), the below of cyclone (17) is provided with a plurality of ash bucket (6) side by side, every the bottom of ash bucket (6) is provided with unloading valve (7), the lower extreme of unloading valve (7) is connected with ash discharge pipe (8).
2. The vertical flow channel flue gas flow bias preventing device according to claim 1, characterized in that: flow guide device (3) are including first bracing piece (11) of level setting on heat exchange case (1) inner wall, the below parallel arrangement of first bracing piece (11) has second bracing piece (13), the upper portion of first bracing piece (11) evenly is provided with the first guide plate of a plurality of (10), be connected through a plurality of second guide plate (12) between first bracing piece (11) and second bracing piece (13), the sub-unit connection of second bracing piece (13) has third guide plate (14).
3. The vertical flow channel flue gas flow bias preventing device according to claim 2, characterized in that: a plurality of fourth guide plates (15) are symmetrically arranged on the first supporting rod (11) and the second supporting rod (13), and the fourth guide plates (15) and the second guide plates (12) are uniformly distributed at intervals.
4. The vertical flow channel flue gas flow bias preventing device according to claim 3, characterized in that: the second guide plate (12) and the third guide plate (14) are both in a grid structure, and the fourth guide plate (15) is in a trapezoidal plate structure.
5. The vertical flow channel flue gas flow bias preventing device according to claim 1, characterized in that: the cyclone separation system (17) comprises a plurality of cyclone separators arranged in parallel, an air inlet on each cyclone separator is correspondingly communicated with the flue gas outlet (16), and an ash discharge port of each cyclone separator is communicated with the ash hopper (6).
6. The vertical flow channel flue gas flow bias preventing device according to claim 1, characterized in that: air cannons (18) are symmetrically arranged on the inner wall of each ash bucket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495085.6U CN212039402U (en) | 2020-04-08 | 2020-04-08 | Bias flow device is prevented to vertical runner flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020495085.6U CN212039402U (en) | 2020-04-08 | 2020-04-08 | Bias flow device is prevented to vertical runner flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212039402U true CN212039402U (en) | 2020-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020495085.6U Expired - Fee Related CN212039402U (en) | 2020-04-08 | 2020-04-08 | Bias flow device is prevented to vertical runner flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212039402U (en) |
-
2020
- 2020-04-08 CN CN202020495085.6U patent/CN212039402U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |