CN219674202U - Flue gas circulating fluidized bed - Google Patents
Flue gas circulating fluidized bed Download PDFInfo
- Publication number
- CN219674202U CN219674202U CN202320538696.8U CN202320538696U CN219674202U CN 219674202 U CN219674202 U CN 219674202U CN 202320538696 U CN202320538696 U CN 202320538696U CN 219674202 U CN219674202 U CN 219674202U
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- Prior art keywords
- combustion
- control shell
- gas
- fluidized bed
- groove
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000003546 flue gas Substances 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 64
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a flue gas circulating fluidized bed, which belongs to the technical field of boilers and comprises a combustion tower, a left circulating control shell and a right circulating control shell, wherein the left circulating control shell and the right circulating control shell are respectively and fixedly arranged on two sides of the combustion tower, a combustion cavity and a discharge cavity are formed in the combustion tower, the discharge cavity is arranged at the top of the combustion cavity, gas-solid separation cavities are formed in the left circulating control shell and the right circulating control shell, a flow guide pipe is arranged between the combustion cavity and the gas-solid separation cavities, a discharge groove is formed between the top of one side of the gas-solid separation cavity and the discharge cavity, a return groove is formed between the bottom of the gas-solid separation cavity and the combustion cavity, and discharge control components are arranged in the left circulating control shell and the right circulating control shell.
Description
Technical Field
The utility model relates to a flue gas circulating fluidized bed, and belongs to the technical field of boilers.
Background
The flue gas circulating fluidized bed is a circulating fluidized bed boiler, and the circulating fluidized bed boiler adopts clean coal combustion technology with highest industrialization degree. The circulating fluidized bed boiler adopts fluidized combustion, the main structure comprises a combustion chamber and a circulating furnace, the basic problems of thermal, mechanics, materialization and the like and the engineering problems of expansion, abrasion, overtemperature and the like are well solved, the circulating fluidized bed boiler becomes an advanced technology for utilizing the energy of the flame-retardant solid fuel, the combustion chamber and the return structure of the common circulating fluidized bed boiler are arranged separately, the occupied consumption is increased, and an air flow pipeline is also needed to be separated for returning the materials to help the return, so that the energy consumption is also increased, and the smoke circulating fluidized bed is needed to help solve the problems.
Disclosure of Invention
The utility model aims to solve the problems and provide a flue gas circulating fluidized bed, which can recycle the unburned and complete combustion particles in a combustion cavity through a left circulating control shell and a right circulating control shell without additionally arranging a cyclone separator, so that the using space of equipment can be greatly saved.
The flue gas circulating fluidized bed comprises a combustion tower, a left circulating control shell and a right circulating control shell, wherein the left circulating control shell and the right circulating control shell are respectively and fixedly arranged on two sides of the combustion tower, a combustion cavity and a discharge cavity are arranged in the combustion tower, the discharge cavity is arranged at the top of the combustion cavity, gas-solid separation cavities are respectively arranged in the left circulating control shell and the right circulating control shell, a flow guide pipe is arranged between the combustion cavity and the gas-solid separation cavities, a discharge groove is arranged between the top of one side of the gas-solid separation cavity and the discharge cavity, a return groove is arranged between the bottom of the gas-solid separation cavity and the combustion cavity, and discharge control components are respectively arranged in the left circulating control shell and the right circulating control shell.
Preferably, for conveniently controlling the emission of flue gas and discharging the collected unburned combustion particles back into the combustion chamber, the emission control assembly comprises a control oil cylinder, an emission control plate, a feed back control plate and a connecting rod, wherein the left side circulation control shell and the right side circulation control shell are internally provided with mounting chambers, and the control oil cylinder is mounted in the mounting chambers.
Preferably, in order to conveniently control the opening and closing of the discharge groove and the return groove, the left side circulation control shell and the right side circulation control shell are respectively provided with a containing groove and a placing groove, the containing groove and the placing groove are respectively communicated with the discharge groove and the return groove, and the discharge control board and the return control board are respectively clamped in the containing groove and the placing groove.
Preferably, for convenience, the discharging control board and the return control board are controlled to move simultaneously, a through hole is formed between the accommodating groove and the accommodating groove, the connecting rod is installed between the discharging control board and the return control board, and the discharging control board is installed at one end of the control oil cylinder.
Preferably, in order to facilitate the input of raw materials and the discharge of flue gas, a feed pipe is arranged on one side of the combustion chamber, and a discharge pipe is arranged on one side of the discharge chamber.
Preferably, in order to facilitate ignition of the combustion particles, an ignition device is mounted on the combustion tower.
Preferably, in order to facilitate forming the fluidized bed, a gas transmission pipeline is arranged at the bottom of the combustion tower, a gas inlet pipe is arranged at one end of the gas transmission pipeline, a gas exhaust head is arranged at the bottom of the combustion chamber, and a connecting pipe is arranged between the gas exhaust head and the gas transmission pipeline.
The beneficial effects of the utility model are as follows:
according to the utility model, the left circulation control shell and the right circulation control shell can recycle the unburned and complete combustion particles in the combustion chamber, and a cyclone separator is not required to be additionally arranged, so that the equipment using space can be greatly saved.
Drawings
FIG. 1 is a front perspective view of the present utility model;
FIG. 2 is a side perspective view of the present utility model;
FIG. 3 is a cross-sectional view of the present utility model;
FIG. 4 is a cross-sectional view of the right side circulation control housing of the present utility model;
in the figure: 1. a combustion tower; 2. a left circulation control case; 3. a right circulation control case; 4. a combustion chamber; 5. a discharge chamber; 6. a gas-solid separation chamber; 7. a flow guiding pipe; 8. a discharge tank; 9. a feed back groove; 10. an emission control assembly; 1001. controlling an oil cylinder; 1002. an emission control board; 1003. a feed back control board; 1004. a connecting rod; 11. a receiving groove; 12. a placement groove; 13. a feed pipe; 14. a discharge pipe; 15. an ignition device; 16. a gas transmission pipeline; 17. an air inlet pipe; 18. an exhaust head; 19. and (5) connecting pipes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a flue gas circulating fluidized bed comprises a combustion tower 1, a left side circulation control shell 2 and a right side circulation control shell 3, wherein the left side circulation control shell 2 and the right side circulation control shell 3 are respectively and fixedly installed on two sides of the combustion tower 1, a combustion chamber 4 and a discharge chamber 5 are arranged in the combustion tower 1, the discharge chamber 5 is arranged at the top of the combustion chamber 4, gas-solid separation chambers 6 are respectively arranged in the left side circulation control shell 2 and the right side circulation control shell 3, a flow guide pipe 7 is installed between the combustion chamber 4 and the gas-solid separation chambers 6, a discharge groove 8 is formed between the top of one side of the gas-solid separation chambers 6 and the discharge chamber 5, a return groove 9 is formed between the bottom of the gas-solid separation chambers 6 and the combustion chamber 4, a feed pipe 13 is installed on one side of the combustion chamber 4, a discharge pipe 14 is installed on one side of the discharge chamber 5, an ignition device 15 is installed on the combustion tower 1, a gas transmission pipeline 16 is arranged at the bottom of the combustion tower 1, an air inlet pipe 17 is installed at one end of the combustion chamber 4, an exhaust head 18 is arranged at the inner bottom of the combustion chamber 4, a connecting pipe 19 is installed between the exhaust head 18 and the left side pipeline 16, a connecting pipe 19 is installed between the left side and the gas transmission chamber 6, a cyclone separator is installed, and the gas-free of the gas circulation control device is not required to be completely separated by the circulating device through the left side and the circulation control shell 3, and the gas-side can not completely use the gas circulation control device, and the large particle can not be completely recycled by the circulating device.
As a technical optimization scheme of the utility model, as shown in fig. 3 and 4, a discharge control assembly 10 is arranged in each of the left circulation control shell 2 and the right circulation control shell 3, the discharge control assembly 10 comprises a control cylinder 1001, a discharge control plate 1002, a return control plate 1003 and a connecting rod 1004, mounting cavities are formed in each of the left circulation control shell 2 and the right circulation control shell 3, the control cylinder 1001 is mounted in the mounting cavities, each of the left circulation control shell 2 and the right circulation control shell 3 is provided with a containing groove 11 and a placement groove 12, the containing groove 11 and the placement groove 12 are respectively communicated with the discharge groove 8 and the return groove 9, the discharge control plate 1002 and the return control plate 1003 are respectively clamped in the containing groove 11 and the placement groove 12, a through hole is formed between the containing groove 11 and the placement groove 12, the connecting rod 1004 is mounted between the discharge control plate 1002 and the return control plate 1003, the discharge control plate 1002 is mounted at one end of the control cylinder 1001, and the discharged and collected unburned combustion particles can be conveniently controlled through the discharge control assembly 10 to discharge back into the combustion cavity 4.
The working principle of the utility model is as follows: when the utility model is used, the air inlet pipe 17 is connected with an external induced draft fan, air flow can be blown into the combustion chamber 4 through the air transmission pipeline 16, the connecting pipe 19 and the exhaust head 18, combustion particles are thrown into the combustion tower 1 through the feeding pipe 13, the combustion particles can generate a fluidized bed under the blowing of bottom air flow, the combustion particles are ignited through the ignition device 15, flue gas can enter the gas-solid separation chamber 6 in the left circulation control shell 2 through the guide pipe 7, flue gas can enter the discharge chamber 5 through the discharge groove 8, unburned combustion particles can fall into the bottom of the gas-solid separation chamber 6 and are blocked in the feed back groove 9 by the feed back control plate 1003, the control cylinder 1001 in the left circulation control shell 2 is started after one end time, the discharge control plate 1002 can be pushed downwards by the control cylinder 1001, meanwhile, the feed back control plate 1003 can be pushed downwards by the connecting rod 1004, the feed back control plate 1003 can be removed from the feed back groove 9, at the moment, the flue gas cannot enter the left circulation control shell 2 due to the fact that the discharge groove 8 is blocked by the left circulation control shell 8, the combustion particles can fall into the right circulation control shell 2 under the action of gravity, and the left circulation control shell 3 is controlled again by the left circulation shell, and the discharge of the flue gas can be controlled again by the left circulation shell 3 when the discharge is needed.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A flue gas circulating fluidized bed, which is characterized in that: including combustion tower (1), left side circulation control shell (2) and right side circulation control shell (3), left side circulation control shell (2) with right side circulation control shell (3) are fixed mounting respectively is in combustion tower (1) both sides, combustion chamber (4) and emission chamber (5) have been seted up in combustion tower (1), emission chamber (5) set up combustion chamber (4) top, left side circulation control shell (2) with gas-solid separation chamber (6) have all been seted up in right side circulation control shell (3), combustion chamber (4) with install honeycomb duct (7) between gas-solid separation chamber (6), gas-solid separation chamber (6) one side top with set up between emission chamber (5) emission groove (8), gas-solid separation chamber (6) bottom with return chute (9) have been seted up between combustion chamber (4), left side circulation control shell (2) with all be provided with emission control subassembly (10) in right side circulation control shell (3).
2. A flue gas circulating fluidized bed according to claim 1, wherein: the emission control assembly (10) comprises a control oil cylinder (1001), an emission control board (1002), a feed back control board (1003) and a connecting rod (1004), wherein the left side circulation control shell (2) and the right side circulation control shell (3) are internally provided with mounting cavities, and the control oil cylinder (1001) is mounted in the mounting cavities.
3. A flue gas circulating fluidized bed according to claim 2, wherein: the left side circulation control shell (2) and the right side circulation control shell (3) are provided with a containing groove (11) and a placing groove (12), the containing groove (11) and the placing groove (12) are respectively communicated with the discharging groove (8) and the return groove (9), and the discharging control board (1002) and the return control board (1003) are respectively clamped in the containing groove (11) and the placing groove (12).
4. A flue gas circulating fluidized bed according to claim 3, wherein: through holes are formed between the accommodating groove (11) and the placing groove (12), the connecting rod (1004) is arranged between the discharge control plate (1002) and the return control plate (1003), and the discharge control plate (1002) is arranged at one end of the control oil cylinder (1001).
5. A flue gas circulating fluidized bed according to claim 1, wherein: a feeding pipe (13) is arranged on one side of the combustion chamber (4), and a discharging pipe (14) is arranged on one side of the discharging chamber (5).
6. A flue gas circulating fluidized bed according to claim 1, wherein: an ignition device (15) is arranged on the combustion tower (1).
7. A flue gas circulating fluidized bed according to claim 1, wherein: the combustion tower is characterized in that a gas transmission pipeline (16) is arranged at the bottom of the combustion tower (1), a gas inlet pipe (17) is arranged at one end of the gas transmission pipeline (16), a gas exhaust head (18) is arranged at the bottom of the combustion cavity (4), and a connecting pipe (19) is arranged between the gas exhaust head (18) and the gas transmission pipeline (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320538696.8U CN219674202U (en) | 2023-03-15 | 2023-03-15 | Flue gas circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320538696.8U CN219674202U (en) | 2023-03-15 | 2023-03-15 | Flue gas circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219674202U true CN219674202U (en) | 2023-09-12 |
Family
ID=87895998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320538696.8U Active CN219674202U (en) | 2023-03-15 | 2023-03-15 | Flue gas circulating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219674202U (en) |
-
2023
- 2023-03-15 CN CN202320538696.8U patent/CN219674202U/en active Active
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