CN202501780U - Flue gas waste heat recovery device - Google Patents
Flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN202501780U CN202501780U CN2012200789540U CN201220078954U CN202501780U CN 202501780 U CN202501780 U CN 202501780U CN 2012200789540 U CN2012200789540 U CN 2012200789540U CN 201220078954 U CN201220078954 U CN 201220078954U CN 202501780 U CN202501780 U CN 202501780U
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- Prior art keywords
- heat recovery
- waste heat
- flue gas
- rows
- circulating water
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Abstract
The utility model discloses a flue gas waste heat recovery device. The flue gas waste heat recovery device comprises a box, a flue gas inlet and a flue gas outlet are arranged on the radial side surface of the box respectively, a circulating water inlet and a circulating water outlet are arranged on the axial side surface of the box respectively, two tube plates are fixed on the circulating water inlet and the circulating water outlet of the box respectively, and a plurality of rows of waste heat recovery finned tubes are fixed between the two tube plates, wherein two rows of neighboring waste heat recovery finned tubes are in a triangle arrangement. According to the utility model, the arrangement mode of two rows of neighboring waste heat recovery finned tubes is changed into a triangle arrangement without increasing the number of the waste heat recovery finned tubes, so the distance of travel of the flue gas in recovery pipeline wall can be extended to three times of the distance in the normal condition, and the flue gas flow can be formed into a spiral vortex state through the arrangement at the same time so as to cause the heavy impact of thermomolecules, so that thermal radiation is further generated, and the purpose of high-efficient heat recovery is achieved through heat conduction.
Description
Technical field
The utility model relates to the waste heat recovery field, is specifically related to a kind of and the matching used flue gas waste heat recovery apparatus of boiler.
Background technology
At present; In the industrial boiler of China uses; The low running status of the thermal efficiency ubiquity of boiler, heat utilization efficiency is lower, and the waste heat of 30-40% can not obtain good use according to statistics; Particularly the boiler tail flue gas waste heat all is being thrown in the atmosphere in vain, is attaching the SO in the comburant simultaneously
2/ NO
2Etc. multiple pernicious gas, these heat energy and pernicious gas have polluted human living environment, therefore, with the boiler tail flue gas heat recovery, are important engineerings of energy-conserving and environment-protective.
Flue gas waste heat recovery apparatus is a kind of high-temperature gas to the boiler tail flue gas discharging, through cold water cycling hot retracting device.It can be widely used in civil boiler, Industrial Boiler.The flue gas waste heat recovery energy saver mainly is to utilize heat conduction and heat radiation, thermal convection principle recovery boiler tail flue gas heat, thereby reduces flue-gas temperature, reduces SO in the flue gas to reach
2, NO
2With dust and noxious gas emission; Simultaneously the heat energy that reclaims is used for other purposes; Promptly realized the energy-conservation effect that reaches environmental protection again.
At present, the structure of the flue gas waste heat recovery apparatus on the market adopts usually: the import and export of on the collection smoke box, offering smoke entrance and heated medium are provided with plurality of rows radiating tube mutually arranged side by side in the collection smoke box; After flue gas gets into from gas approach; Discharge to the flue gas exhaust mouth through radiating tube, heated medium gets into from the heated medium import, contacts the back with radiating tube and realizes exchange heat; Discharge from the heated medium outlet, to realize the recycling of fume afterheat.
The patent No. 201020507826.4, the utility model patent that name is called " flue gas waste heat recovery apparatus " have been announced a kind of with installing radiating fin on the radiating tube additional, increasing the area of dissipation of heat exchanger tube, thereby improve the heat exchanger effectiveness of radiating tube and heated medium.
The patent No. 20101016718.6; The patent of invention that name is called " a kind of efficient heat conducting tube of recycling the fume afterheat heat-exchanger rig " has been announced and has a kind ofly been conducted heat through vertical coiled pipe; Increased heat exchange area; And increase the disturbance of flue gas and the holdup time in flue, reach the purpose that improves heat exchanger effectiveness.
Though above-mentioned higher, but still there is processed complex, the defective that production cost is higher than common flue gas waste heat recovery apparatus heat exchanger effectiveness.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned prior art, and a kind of simple in structure, flue gas waste heat recovery apparatus that heat recovery efficiency is high is provided.
A kind of flue gas waste heat recovery apparatus; Comprise casing; Be respectively equipped with the flue gas import and export on the casing radial side, be respectively equipped with the recirculated water entery and delivery port on the axial sides, be fixed with tube sheet on the recirculated water entery and delivery port of said casing; Be fixed with plurality of rows waste heat recovery finned tube between two tube sheets, be △ between the adjacent waste heat recovery finned tube of said two rows and arrange.
Said waste heat recovery finned tube adopts aluminium alloy pipe.
Said waste heat recovery finned tube is weldingly fixed between two tube sheets.
The utility model is under the situation that does not increase waste heat recovery finned tube quantity; Change arrangement between the adjacent waste heat recovery finned tube of two rows into △ and arrange, but prolong smoke reaches normal 3 times at the stroke of recovery channel wall, this setting simultaneously can be with flue gas flow, form the spiral vortex state; Thereby make the collision of thermo-molecular height; Further produce heat radiation,, reach high-efficiency thermal and reclaim purpose through the heat conduction.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model.
Fig. 2 is the plan structure sketch map of the utility model.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is further specified.Should be understood that following examples only are used to the utility model is described but not the scope that is used to limit the utility model.
Referring to Fig. 1, a kind of flue gas waste heat recovery apparatus that the utility model provided comprises casing 1; Be respectively equipped with flue gas import and export 2,3 on casing 1 radial side; Be respectively equipped with recirculated water entery and delivery port 4,5 on the axial sides, be fixed with on the recirculated water entery and delivery port 4,5 of said casing 1 and be fixed with plurality of rows waste heat recovery finned tube 7 between tube sheet 6, two tube sheets; Referring to Fig. 2, be △ between the adjacent waste heat recovery finned tube 7 of said two rows and arrange.
Be provided with owing to change arrangement between the adjacent waste heat recovery finned tube of two rows into △, but prolong smoke reaches normal 3 times at the stroke of recovery channel wall, this setting simultaneously can be with flue gas flow, form the spiral vortex state; Thereby make thermo-molecular produce highly collision, further produce heat radiation, reclaim purpose to reach high-efficiency thermal; Spiral vortex forms, and makes to produce highly collision between the thermo-molecular, produces heat radiation; Add that good conductor transmits, the temperature of flue gas afterbody descends, and decomposes once more thereby cause in the flue gas harmful components are returned into the heat radiation chamber again; Then reach environmental protection exhaust emissions effect, realize energy-conserving and environment-protective.The waste heat recovery finned tube can be selected the higher aluminium alloy pipe of heat transfer efficiency for use, is equipped with circulating hot-water pump simultaneously, realizes that recirculated water reclaims heat energy.
Claims (3)
1. flue gas waste heat recovery apparatus; Comprise casing; Be respectively equipped with the flue gas import and export on the casing radial side, be respectively equipped with the recirculated water entery and delivery port on the axial sides, be fixed with tube sheet on the recirculated water entery and delivery port of said casing; Be fixed with plurality of rows waste heat recovery finned tube between two tube sheets, it is characterized in that: be △ between the adjacent waste heat recovery finned tube of said two rows and arrange.
2. flue gas waste heat recovery apparatus as claimed in claim 1 is characterized in that: said waste heat recovery finned tube adopts aluminium alloy pipe.
3. flue gas waste heat recovery apparatus as claimed in claim 1 is characterized in that: said waste heat recovery finned tube is weldingly fixed between two tube sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200789540U CN202501780U (en) | 2012-02-29 | 2012-02-29 | Flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200789540U CN202501780U (en) | 2012-02-29 | 2012-02-29 | Flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501780U true CN202501780U (en) | 2012-10-24 |
Family
ID=47038392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200789540U Expired - Fee Related CN202501780U (en) | 2012-02-29 | 2012-02-29 | Flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538517A (en) * | 2012-02-29 | 2012-07-04 | 邵远金 | Flue gas afterheat recycling device |
-
2012
- 2012-02-29 CN CN2012200789540U patent/CN202501780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538517A (en) * | 2012-02-29 | 2012-07-04 | 邵远金 | Flue gas afterheat recycling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20140229 |