CN219300775U - Air blowing waste heat recovery device for boiler - Google Patents
Air blowing waste heat recovery device for boiler Download PDFInfo
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- CN219300775U CN219300775U CN202221393702.7U CN202221393702U CN219300775U CN 219300775 U CN219300775 U CN 219300775U CN 202221393702 U CN202221393702 U CN 202221393702U CN 219300775 U CN219300775 U CN 219300775U
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- waste heat
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Abstract
The utility model discloses a blowing gas waste heat recovery device for a boiler, which relates to the technical field of boiler waste heat recovery and aims to provide a blowing gas waste heat recovery device for a boiler, wherein dust on the outer wall of a pipeline is reduced, the time for forming a dirt layer on the outer wall of a pipeline assembly is prolonged, and the heat transfer effect is improved.
Description
Technical Field
The utility model relates to the technical field of boiler waste heat recovery, in particular to a blowing gas waste heat recovery device for a boiler.
Background
At present, the waste heat utilization potential of industrial enterprises is great, and the waste heat utilization plays an important role in current energy conservation; the recycling of waste heat resources requires technical requirements, technical feasibility, economical rationality and environmental protection; the waste heat of the high-temperature flue gas accounts for about 50% of the total waste heat resources, but the high-temperature waste heat utilization of the middle-small boilers and kilns widely used by the industrial enterprises at present is still weaker.
In the prior art, the pipeline assembly is generally arranged in the air outlet channel, condensed water in the pipeline assembly exchanges heat with blowing air in the air outlet channel, so that the utilization of residual heat of the blowing air is realized, however, the existing air outlet channel is internally provided with a protection device, ash residues are arranged in waste gas, and directly fall on the pipeline assembly to block heat transfer and influence the heat transfer effect.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the blast gas waste heat recovery device for the boiler, which is used for reducing dust on the outer wall of a pipeline, prolonging the time for forming a dirt layer on the outer wall of a pipeline assembly and improving the heat transfer effect.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a waste heat recovery device of blowing gas for boiler, includes the passageway of giving vent to anger, the top of passageway of giving vent to anger has seted up waste gas import, has seted up the waste gas export on the lateral wall of passageway of giving vent to anger, has seted up the ash discharge on the passageway of giving vent to anger, and the inner chamber bottom of passageway of giving vent to anger is installed the ash discharging plate in an inclined way, the lower one side of ash discharging plate is connected with the ash discharge;
the inside of the air outlet channel is provided with a pipeline component through a frame plate, the pipeline component is positioned above the waste gas outlet, the pipeline component comprises a plurality of transverse heating pipes, each transverse heating pipe extends in an S shape, the plurality of transverse heating pipes are connected through an axial pipe, the pipeline component further comprises a water inlet and a steam outlet, and the water inlet is positioned below the steam outlet;
the inner chamber top of the passageway of giving vent to anger detachably installs the multilayer dust screen, the multilayer dust screen is located the top of frame plate.
Preferably, the outer wall of the air outlet channel is provided with a ladder and a manhole, an annular table is arranged inside the air outlet channel, the annular table is arranged along the circumferential direction of the inner wall of the air outlet channel, and the multi-layer dust screen is fixedly installed on the annular table.
Preferably, the outer parts of the transverse heating pipe and the axial pipe are fixedly sleeved with jacket pipes, and pipe bodies in the jacket pipes are welded and sealed into a whole.
Preferably, isolation sleeves are arranged between the transverse heating pipe and the jacket pipe and between the axial pipe and the jacket pipe, the inner wall of the isolation sleeve is welded with the inner sleeve pipe body of the isolation sleeve into a whole, and the outer wall of the isolation sleeve is welded with the outer sleeve pipe body of the isolation sleeve.
Preferably, the outer part of the jacket tube is provided with an anti-corrosion coating.
(III) beneficial effects
Compared with the prior art, the utility model provides a blowing gas waste heat recovery device for a boiler, which has the following beneficial effects:
the multi-layer dust screen is arranged, dust in waste gas can be blocked, dust on the outer wall of the pipeline is reduced, the time for forming a dirt layer on the outer wall of the pipeline assembly is prolonged, and therefore the heat transfer effect of the pipeline assembly during use is improved, and the utilization rate of waste heat is improved.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
FIG. 2 is a schematic cross-sectional view of a transverse heating tube according to the present utility model.
In the figure: 1. an air outlet channel; 2. an exhaust gas inlet; 3. an exhaust gas outlet; 4. an ash discharge opening; 5. an ash discharging plate; 6. A transverse heating tube; 7. an axial tube; 8. a water inlet; 9. a steam outlet; 10. a multi-layer dust screen; 11. a ladder stand; 12. a manhole; 13. an annular table; 14. clamping the sleeve; 15. an isolation sleeve; 16. an anti-corrosion coating; 17. A frame plate.
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. 1-2, a device for recovering waste heat of blowing gas for a boiler comprises an air outlet channel 1, wherein an exhaust gas inlet 2 is formed in the top of the air outlet channel 1, an exhaust gas outlet 3 is formed in the side wall of the air outlet channel 1, an ash discharge port 4 is formed in the air outlet channel 1, an ash discharge plate 5 is obliquely arranged at the bottom of an inner cavity of the air outlet channel 1, and one side of the lower side of the ash discharge plate 5 is connected with the ash discharge port 4;
the inside of the air outlet channel 1 is provided with a pipeline assembly through a frame plate 17, the pipeline assembly is positioned above the waste gas outlet 3, the pipeline assembly comprises a plurality of transverse heating pipes 6, each transverse heating pipe 6 extends in an S shape, the plurality of transverse heating pipes 6 are connected through an axial pipe 7, the pipeline assembly further comprises a water inlet 8 and a steam outlet 9, and the water inlet 8 is positioned below the steam outlet 9;
the top of the inner cavity of the air outlet channel 1 is detachably provided with a plurality of layers of dustproof nets 10, and the dustproof nets 10 are positioned above the frame plates 17.
In this embodiment, the exhaust gas inlet 2 defining the exhaust gas channel 1 is at the top, the exhaust gas outlet 3 is formed on the side wall of the exhaust gas channel 1, and the pipe assembly is above the exhaust gas outlet 3, meanwhile, the pipe assembly is composed of a plurality of transverse heating pipes 6 and axial pipes 7, condensed water flows from bottom to top, and the exhaust gas flows from top to bottom oppositely, so that the contact area between the pipe assembly and the exhaust gas is enlarged, and the utilization rate of the waste heat of the exhaust gas is improved;
in this embodiment, the multi-layer dust screen 10 is provided, which can block dust in the exhaust gas, reduce dust on the outer wall of the pipeline, and prolong the time for forming a dirt layer on the outer wall of the pipeline assembly, so as to improve the heat transfer effect of the pipeline assembly during use and the utilization rate of waste heat;
the multi-layer dust screen 10 and the ventilation pipeline are detachably mounted, generally fixed by bolts, so that the multi-layer dust screen is convenient to detach and replace in the later period;
specifically, the outer wall of the air outlet channel 1 is provided with a ladder 11 and a manhole 12, an annular table 13 is arranged in the air outlet channel 1, the annular table 13 is circumferentially arranged along the inner wall of the air outlet channel 1, and a plurality of layers of dustproof nets 10 are fixedly arranged on the annular table 13;
in the embodiment, the ladder 11 and the manhole 12 are arranged, so that workers can conveniently enter the air outlet channel 1 and stand on the annular table 13 after entering, and the multi-layer dust screen 10 is installed;
further, the outer parts of the transverse heating pipe 6 and the axial pipe 7 are fixedly sleeved with a clamping sleeve 14, and the pipe bodies inside the clamping sleeve 14 are welded and sealed into a whole;
in the embodiment, the jacket pipe 14 is utilized to protect the transverse heating pipe 6, so that the pipe body of the transverse heating pipe 6 is prevented from being directly corroded, condensed water in the transverse heating pipe 6 is prevented from leaking, the intercommunication of water and smoke is prevented, the normal operation of equipment is ensured, and the continuity, reliability and safety of the operation of the equipment are improved;
further, an isolation sleeve 15 is arranged between the transverse heating pipe 6 and the jacket pipe 14 and between the axial pipe 7 and the jacket pipe 14, the inner wall of the isolation sleeve 15 is welded with the inner sleeve body of the isolation sleeve 15 into a whole, and the outer wall of the isolation sleeve 15 is welded with the outer sleeve body of the isolation sleeve 15 into a whole;
in the embodiment, an isolation sleeve 15 is further arranged, so that double protection of the transverse heating pipe 6 is realized, and the isolation effect on gas and water is improved;
further, the outside of the jacket pipe 14 is provided with an anti-corrosion coating 16;
the anti-corrosion coating 16 is provided to protect the jacket pipe 14, thereby prolonging the service life of the jacket pipe 14 and prolonging the service life of the whole device;
working principle: when the exhaust gas enters the air outlet channel 1 from the exhaust gas inlet 2, dust in the exhaust gas is blocked when passing through the multi-layer protective screening, heat is continuously transferred downwards, finally the exhaust gas leaves from the exhaust gas outlet 3, condensed water enters from the water inlet 8, flows along the pipeline assembly and exchanges heat with the exhaust gas, so that steam is generated, and finally the steam leaves from the steam outlet 9.
The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.
Claims (5)
1. The utility model provides a boiler is with blowing gas waste heat recovery device, includes air outlet channel (1), its characterized in that: an exhaust gas inlet (2) is formed in the top of the air outlet channel (1), an exhaust gas outlet (3) is formed in the side wall of the air outlet channel (1), an ash discharge opening (4) is formed in the air outlet channel (1), an ash discharge plate (5) is obliquely arranged at the bottom of an inner cavity of the air outlet channel (1), and one lower side of the ash discharge plate (5) is connected with the ash discharge opening (4);
the inside of the air outlet channel (1) is provided with a pipeline component through a frame plate (17), the pipeline component is positioned above the waste gas outlet (3), the pipeline component comprises a plurality of transverse heating pipes (6), each transverse heating pipe (6) extends in an S shape, the plurality of transverse heating pipes (6) are connected through an axial pipe (7), the pipeline component further comprises a water inlet (8) and a steam outlet (9), and the water inlet (8) is positioned below the steam outlet (9);
the multi-layer dustproof net (10) is detachably arranged at the top of the inner cavity of the air outlet channel (1), and the multi-layer dustproof net (10) is positioned above the frame plate (17).
2. The apparatus for recovering waste heat of blowing gas for a boiler according to claim 1, wherein: the outer wall of the air outlet channel (1) is provided with a crawling ladder (11) and a manhole (12), an annular table (13) is arranged inside the air outlet channel (1), the annular table (13) is circumferentially arranged along the inner wall of the air outlet channel (1), and the multi-layer dust screen (10) is fixedly installed on the annular table (13).
3. The apparatus for recovering waste heat of blowing gas for boiler according to claim 2, wherein: the outer parts of the transverse heating pipe (6) and the axial pipe (7) are fixedly sleeved with a jacket pipe (14), and the pipe bodies inside the jacket pipe (14) are welded and sealed into a whole.
4. A blowing gas waste heat recovery apparatus for a boiler according to claim 3, wherein: and isolation sleeves (15) are arranged between the transverse heating pipe (6) and the jacket pipe (14) and between the axial pipe (7) and the jacket pipe (14), the inner wall of each isolation sleeve (15) is welded with the inner sleeve pipe body of the corresponding isolation sleeve, and the outer wall of each isolation sleeve (15) is welded with the outer sleeve pipe body of the corresponding isolation sleeve.
5. The apparatus for recovering waste heat of blowing gas for a boiler according to claim 4, wherein: an anti-corrosion coating (16) is arranged outside the jacket pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221393702.7U CN219300775U (en) | 2022-06-06 | 2022-06-06 | Air blowing waste heat recovery device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221393702.7U CN219300775U (en) | 2022-06-06 | 2022-06-06 | Air blowing waste heat recovery device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219300775U true CN219300775U (en) | 2023-07-04 |
Family
ID=86987457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221393702.7U Active CN219300775U (en) | 2022-06-06 | 2022-06-06 | Air blowing waste heat recovery device for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219300775U (en) |
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2022
- 2022-06-06 CN CN202221393702.7U patent/CN219300775U/en active Active
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