CN220471665U - Flue gas heat recycling device - Google Patents
Flue gas heat recycling device Download PDFInfo
- Publication number
- CN220471665U CN220471665U CN202322132008.0U CN202322132008U CN220471665U CN 220471665 U CN220471665 U CN 220471665U CN 202322132008 U CN202322132008 U CN 202322132008U CN 220471665 U CN220471665 U CN 220471665U
- Authority
- CN
- China
- Prior art keywords
- water tank
- pipe
- flue gas
- heat boiler
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000003546 flue gas Substances 0.000 title claims abstract description 20
- 238000004064 recycling Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 239000002918 waste heat Substances 0.000 claims abstract description 11
- 241000208125 Nicotiana Species 0.000 claims description 6
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims 3
- 239000013049 sediment Substances 0.000 abstract description 7
- 239000002893 slag Substances 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000002244 precipitate Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a flue gas heat recycling device which comprises a waste heat boiler, wherein a main smoke pipe is arranged at the top of the waste heat boiler, a water tank is arranged on one side of the waste heat boiler, a plurality of heating pipes are arranged in the water tank, two ends of each heating pipe penetrate through the side wall of the water tank to be communicated with the main smoke pipe, a cone hopper is arranged at the bottom of the water tank, a slag discharging pipe is arranged at the lower end of the cone hopper, and an ultrasonic generator is fixedly arranged on the inner wall of the water tank. The utility model has reasonable structural design, starts the ultrasonic generator, shakes the sediment just adhered to the outer wall of the heating pipe and the inner wall of the water tank into the cone hopper, opens the second stop valve, discharges the sediment impurity in the cone hopper along the slag discharging pipe, ensures the heat exchange efficiency of hot air in the heating pipe and cold water in the water tank, ensures the full utilization of heat in the tail gas, and improves the utilization rate of energy.
Description
Technical Field
The utility model belongs to the technical field of tail gas utilization, and particularly relates to a flue gas heat recycling device.
Background
In the production process of the coke oven plant, the high-temperature flue gas of the coke oven is transmitted to the waste heat boiler, the generated high-temperature steam continuously heats the water tank, the full utilization of heat in the flue gas is realized, and the flue gas is discharged along a chimney after being treated. After the water in the water tank is heated, calcium ions in the water can form calcium carbonate precipitates, magnesium ions in the water can form magnesium hydroxide precipitates, and the precipitates are gradually attached to the outer wall of the heating pipe and the inner wall of the water tank, so that heat exchange between hot air in the heating pipe and cold water in the water tank is hindered, the heat exchange efficiency is reduced, the full utilization of heat in tail gas is influenced, and the waste of energy sources is caused.
Disclosure of Invention
In order to solve the problems, the utility model provides a flue gas heat recycling device.
The utility model is realized in the following way: the utility model provides a flue gas heat recycling device, includes exhaust-heat boiler, exhaust-heat boiler's top is provided with main tobacco pipe, and the flue gas discharges along main tobacco pipe, exhaust-heat boiler's one side has set gradually a plurality of water tanks, carries out the retaining, the fixed many heating pipes that are provided with side by side in the water tank, the both ends of heating pipe pass the water tank lateral wall and are linked together with main tobacco pipe, and high temperature flue gas in the main tobacco pipe gets into in the heating pipe and carries out the heat exchange with the cold water in the water tank to heat cold water in the water tank, the junction of heating pipe and water tank lateral wall seals the setting, prevents to leak, the water tank upper end is provided with the inlet tube, and cold water flows into in the water tank along the inlet tube, the water tank lower extreme is provided with the outlet pipe, be provided with first stop valve on the outlet pipe, open first stop valve, water in the water tank is discharged along the outlet pipe, the bottom of water tank is provided with the awl fill, the lower extreme of awl fill is provided with the scum pipe, be provided with the sediment pipe on the scum pipe, be provided with the second stop valve on the inner wall of water tank fixedly on the inner wall of ultrasonic generator, interval, start generator, deposit sediment and deposit in the awl pipe is deposited on the water tank along the awl pipe.
Preferably, the heating pipe is arranged in a bending way, so that the residence time of high-temperature flue gas in the heating pipe is prolonged, and the heat exchange is ensured to be fully carried out.
Preferably, a dust removing device is arranged on the main smoke pipe between the waste heat boiler and the water tank, so that dust in the smoke is treated, and the heating pipe is prevented from being blocked.
The beneficial effects of the utility model are as follows: the utility model has reasonable structural design, starts the ultrasonic generator, shakes the sediment just adhered to the outer wall of the heating pipe and the inner wall of the water tank into the cone hopper, opens the second stop valve, discharges the sediment impurity in the cone hopper along the slag discharging pipe, ensures the heat exchange efficiency of hot air in the heating pipe and cold water in the water tank, ensures the full utilization of heat in the tail gas, and improves the utilization rate of energy.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic top view of the structure in the tank;
in the figure: 1. a waste heat boiler; 2. a main smoke tube; 3. a water tank; 4. heating pipes; 5. a water inlet pipe; 6. a water outlet pipe; 7. a first stop valve; 8. a cone bucket; 9. a slag discharge pipe; 10. a second shut-off valve; 11. an ultrasonic generator; 12. dust removal device.
Detailed Description
In order to make the technical solution of the present utility model more clearly understood, the present utility model will be further described with reference to the accompanying drawings.
The flue gas heat recycling device shown in figures 1 and 2 comprises a waste heat boiler 1, a main flue pipe 2 is arranged at the top of the waste heat boiler 1, flue gas is discharged along the main flue pipe 2, a plurality of water tanks 3 are sequentially arranged on one side of the waste heat boiler 1 for water storage, a dust removing device 12 is arranged on the main flue pipe 2 between the waste heat boiler 1 and the water tanks 3 for treating dust in the flue gas to prevent the blockage of a heating pipe 4, a plurality of heating pipes 4 are fixedly arranged in parallel in the water tanks 3, the heating pipes 4 are bent and arranged to prolong the residence time of high-temperature flue gas in the heating pipes 4 and ensure the full progress of heat exchange, the two ends of the heating pipes 4 penetrate through the side walls of the water tanks 3 and are communicated with the main flue pipe 2, the high-temperature flue gas in the main flue pipe 2 enters the heating pipes 4 to exchange heat with cold water in the water tanks 3, thereby heating cold water in the water tank 3, the joint of the heating pipe 4 and the side wall of the water tank 3 is sealed to prevent water leakage, the upper end of the water tank 3 is provided with a water inlet pipe 5, cold water flows into the water tank 3 along the water inlet pipe 5, the lower end of the water tank 3 is provided with a water outlet pipe 6, the water outlet pipe 6 is provided with a first stop valve 7, the first stop valve 7 is opened, water in the water tank 3 is discharged along the water outlet pipe 6 for use, the bottom of the water tank 3 is provided with a cone bucket 8, the lower end of the cone bucket 8 is provided with a slag discharge pipe 9, the slag discharge pipe 9 is provided with a second stop valve 10, the inner wall of the water tank 3 is fixedly provided with an ultrasonic generator 11, the ultrasonic generator 11 is started at intervals, sediment which is just attached to the outer wall of the heating pipe 4 and the inner wall of the water tank 3 is vibrated into the cone bucket 8, the second stop valve 10 is opened, the precipitated impurities in the cone hopper 8 are discharged along the slag discharge pipe 9.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (3)
1. The utility model provides a flue gas heat recovery utilizes device, includes exhaust-heat boiler, exhaust-heat boiler's top is provided with main tobacco pipe, one side of exhaust-heat boiler has set gradually a plurality of water tanks, the fixed many heating pipes that are provided with side by side in the water tank, the both ends of heating pipe pass the water tank lateral wall and are linked together with main tobacco pipe, the junction of heating pipe and water tank lateral wall seals the setting, the water tank upper end is provided with the inlet tube, the water tank lower extreme is provided with the outlet pipe, be provided with first stop valve on the outlet pipe, a serial communication port, the bottom of water tank is provided with the awl and fights, the lower extreme that the awl fights is provided with the scum pipe, be provided with the second stop valve on the scum pipe, fixedly provided with supersonic generator on the inner wall of water tank.
2. A flue gas heat recovery device according to claim 1, wherein the heating pipes are arranged in a curved configuration.
3. The flue gas heat recovery and utilization device according to claim 1, wherein a dust removal device is arranged on the main flue pipe between the waste heat boiler and the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322132008.0U CN220471665U (en) | 2023-08-09 | 2023-08-09 | Flue gas heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322132008.0U CN220471665U (en) | 2023-08-09 | 2023-08-09 | Flue gas heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220471665U true CN220471665U (en) | 2024-02-09 |
Family
ID=89804829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322132008.0U Active CN220471665U (en) | 2023-08-09 | 2023-08-09 | Flue gas heat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220471665U (en) |
-
2023
- 2023-08-09 CN CN202322132008.0U patent/CN220471665U/en active Active
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| GR01 | Patent grant |