CN202438306U - Device for pyrolyzing urea by using flue gas waste heat of power plant boiler - Google Patents
Device for pyrolyzing urea by using flue gas waste heat of power plant boiler Download PDFInfo
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- CN202438306U CN202438306U CN2012200306390U CN201220030639U CN202438306U CN 202438306 U CN202438306 U CN 202438306U CN 2012200306390 U CN2012200306390 U CN 2012200306390U CN 201220030639 U CN201220030639 U CN 201220030639U CN 202438306 U CN202438306 U CN 202438306U
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- boiler
- heat exchanger
- urea
- power plant
- urea pyrolysis
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Abstract
The utility model discloses a device for pyrolyzing urea by using flue gas waste heat of a power plant boiler. The device comprises a boiler air preheater, a urea pyrolyzing furnace and a tubular heat exchanger, wherein the tubular heat exchanger is arranged in a boiler flue; the air inlet of the tubular heat exchanger is communicated with the boiler air preheater; and the air outlet of the tubular heat exchanger is communicated with the urea pyrolyzing furnace. The device has the advantages: urea is pyrolyzed by using flue gas waste heat of the power plant boiler, so that a new heat source is not required to be arranged, cost is reduced, and the device is environment-friendly and economical.
Description
Technical field
The utility model relates to a kind of device of urea pyrolysis.
Background technology
The required equipment of urea pyrolysis mainly contains urea pyrolysis oven, urea dissolving tank, solution feed pump, atomizer and ammonia spraying system etc.; The urea pyrolysis need be blown into 600 ° of hot blasts more than the C in the urea pyrolysis oven; The urea liquid generation pyrolytic reaction that makes atomizing in the prior art, adopts fuel Heating or electric heater unit to obtain the above hot blast of 600 ° of C usually; Therefore need to consume a large amount of fuel oil or electric energy, neither environmental protection is also uneconomical.
Summary of the invention
The purpose of the utility model is the defective that overcomes prior art, and a kind of device that utilizes the boiler of power plant fume afterheat to make the urea pyrolysis is provided.
The technical solution of the utility model is: a kind of device that utilizes the boiler of power plant fume afterheat to make the urea pyrolysis; Comprise boiler air preheater, urea pyrolysis oven; It also comprises the pipe heat exchanger that is arranged in the boiler flue; The air inlet of pipe heat exchanger is communicated with said boiler air preheater, and its air outlet is communicated with said urea pyrolysis oven.
Cold wind gets into after the preheating of boiler air preheater and is arranged on the pipe heat exchanger in the boiler flue; And in pipe heat exchanger, carry out heat exchange with boiler smoke; Become temperature at 600 ° of hot blasts more than the C, get into the urea liquid generation pyrolytic reaction that the urea pyrolysis oven makes atomizing then.This device utilizes the boiler of power plant fume afterheat to make the urea pyrolysis, and need not increases new thermal source, has reduced cost, not only environmental protection but also economy.
Said pipe heat exchanger is arranged in the boiler reversal chamber of boiler flue.Flue gas flow rate in the boiler reversal chamber is slower, and its temperature is also relatively stable, and pipe heat exchanger is arranged in the boiler reversal chamber, and heat exchange effect is better.
The advantage of the utility model: this device utilizes the boiler flue waste heat to make the urea pyrolysis, and need not increases new thermal source, has reduced cost, not only environmental protection but also economy.
Description of drawings
Fig. 1 is a kind of structural representation that utilizes the boiler of power plant fume afterheat to make the device of urea pyrolysis of the utility model embodiment;
1, boiler air preheater, 2, the urea pyrolysis oven, 3, boiler flue, 4, pipe heat exchanger, 5, the boiler reversal chamber.
The specific embodiment
Embodiment:
Consult Fig. 1; A kind of device that utilizes the boiler of power plant fume afterheat to make the urea pyrolysis; Comprise boiler air preheater 1, urea pyrolysis oven 2; It also comprises the pipe heat exchanger 4 that is arranged in the boiler flue 3, and the air inlet of pipe heat exchanger 4 is communicated with said boiler air preheater 1, and its air outlet is communicated with said urea pyrolysis oven 2.Said pipe heat exchanger 4 is arranged in the boiler reversal chamber 5 of boiler flue 3.
Cold wind gets into after 1 preheating of boiler air preheater and is arranged on the pipe heat exchanger 4 in the boiler flue 3; And in pipe heat exchanger 4, carry out heat exchange with boiler smoke; Become temperature at 600 ° of hot blasts more than the C, get into the urea liquid generation pyrolytic reaction that urea pyrolysis oven 2 makes atomizing then.
Said pipe heat exchanger 4 is arranged in the boiler reversal chamber 5 of boiler flue 3.Flue gas flow rate in the boiler reversal chamber 5 is slower, and its temperature is also relatively stable, and pipe heat exchanger 4 is arranged in the boiler reversal chamber 5, and heat exchange effect is better.This device utilizes the boiler of power plant fume afterheat to make the urea pyrolysis, and need not increases new thermal source, has reduced cost, not only environmental protection but also economy.
Above-listed detailed description is specifying to one of the utility model possible embodiments; This embodiment is not the claim in order to restriction the utility model; Allly do not break away from the equivalence that the utility model does and implement or change, all should be contained in the claim of this case.
Claims (2)
1. device that utilizes the boiler of power plant fume afterheat to make the urea pyrolysis; Comprise boiler air preheater, urea pyrolysis oven; It is characterized in that; It also comprises the pipe heat exchanger that is arranged in the boiler flue, and the air inlet of pipe heat exchanger is communicated with said boiler air preheater, and its air outlet is communicated with said urea pyrolysis oven.
2. a kind of device that utilizes the boiler of power plant fume afterheat to make the urea pyrolysis according to claim 1 is characterized in that said pipe heat exchanger is arranged in the boiler reversal chamber of boiler flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200306390U CN202438306U (en) | 2012-01-31 | 2012-01-31 | Device for pyrolyzing urea by using flue gas waste heat of power plant boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200306390U CN202438306U (en) | 2012-01-31 | 2012-01-31 | Device for pyrolyzing urea by using flue gas waste heat of power plant boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438306U true CN202438306U (en) | 2012-09-19 |
Family
ID=46819763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200306390U Expired - Fee Related CN202438306U (en) | 2012-01-31 | 2012-01-31 | Device for pyrolyzing urea by using flue gas waste heat of power plant boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723005A (en) * | 2017-10-20 | 2018-02-23 | 南通理工学院 | A kind of ship rubbish from cooking pyrolysis evaporates makeup and put |
-
2012
- 2012-01-31 CN CN2012200306390U patent/CN202438306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723005A (en) * | 2017-10-20 | 2018-02-23 | 南通理工学院 | A kind of ship rubbish from cooking pyrolysis evaporates makeup and put |
| CN107723005B (en) * | 2017-10-20 | 2020-06-23 | 南通理工学院 | Pyrolysis and distillation device for kitchen garbage of ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20190131 |