CN204593425U - The dedusting of flue gas efficient electric and fume afterheat utilize combination unit - Google Patents
The dedusting of flue gas efficient electric and fume afterheat utilize combination unit Download PDFInfo
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- CN204593425U CN204593425U CN201520199147.8U CN201520199147U CN204593425U CN 204593425 U CN204593425 U CN 204593425U CN 201520199147 U CN201520199147 U CN 201520199147U CN 204593425 U CN204593425 U CN 204593425U
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- electric cleaner
- flue
- heat exchanger
- water
- air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses the dedusting of a kind of flue gas efficient electric and fume afterheat utilizes combination unit, solve the dust removing effects of taking into account electric cleaner and improve the difficult problem in heat exchanger service life.Comprise flue (7), flue (7) is respectively arranged with one-level electric cleaner (1) and secondary electric cleaner (2), air-water heat exchanger (6) is provided with in flue (7) between one-level electric cleaner (1) and secondary electric cleaner (2), the water inlet of air-water heat exchanger (6) and the delivery port of heat supply network recirculated water are connected together, the delivery port of air-water heat exchanger (6) and the water inlet of heat supply network recirculated water are connected together, the flue (7) in the exit of secondary electric cleaner (2) is in series with three grades of electric cleaners (3) successively, level Four electric cleaner (4) and Pyatyi electric cleaner (5).The utility model degree of depth has reclaimed the waste heat of boiler smoke, reduces the exhaust temperature of flue gas, improves boiler thermal output and security.
Description
Technical field
The present invention relates to a kind of device power plant boiler flue gas being carried out to efficient electric dedusting, particularly a kind of efficient electric dedusting is carried out to power plant boiler flue gas while also carry out the combination unit that fume afterheat effectively utilizes.
Background technology
At present, the exhaust gas temperature scope of coal-fired plant boiler is at 130 DEG C-150 DEG C, and heat energy discharges the waste causing the energy with flue gas.In order to avoid dust is discharged in air with flue gas, electric cleaner generally all will be installed additional on flue in power plant, in order to the heat in recovered flue gas, installs flue gas air-water heat exchanger before electric cleaner or after electric cleaner additional, utilizes after the heat heat exchange in flue gas being reclaimed.In use often there is serious wear in the existing heat exchanger be arranged on before electric cleaner, sometimes also there will be stifled ash, the problem that ubiquity heat exchanger service life is short.And heat exchanger is arranged on after electric cleaner, because the temperature entering into the high-temperature flue gas of electric cleaner is not effectively reduced, the dust removing effects of electric cleaner is not effectively played.
Summary of the invention
The invention provides the dedusting of a kind of flue gas efficient electric and fume afterheat utilizes combination unit, solve the dust removing effects of taking into account electric cleaner and improve the technical barrier in heat exchanger service life.
The present invention solves above technical problem by the following technical programs:
A kind of flue gas efficient electric dedusting and fume afterheat utilize combination unit, comprise flue, flue is respectively arranged with one-level electric cleaner and secondary electric cleaner, air-water heat exchanger is provided with in flue between one-level electric cleaner and secondary electric cleaner, the water inlet of air-water heat exchanger and the delivery port of heat supply network recirculated water are connected together, the delivery port of air-water heat exchanger and the water inlet of heat supply network recirculated water are connected together, and the flue in the exit of secondary electric cleaner is in series with three grades of electric cleaners, level Four electric cleaner and Pyatyi electric cleaner successively.
The inlet temperature of one-level electric cleaner is 130 DEG C, and the outlet temperature of one-level electric cleaner (1) is 95 DEG C, and the heat exchange area of air-water heat exchanger is 62860 square metres.
The degree of depth of the present invention has reclaimed the waste heat of boiler smoke, reduce the exhaust temperature of flue gas, improve boiler thermal output and security, in particular improve the efficiency of dust collection of the second level and later electric cleaner, decrease the wearing and tearing of flue gas air-water heat exchanger and stifled ash, improve flue gas heat-exchange unit service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of flue gas efficient electric dedusting and fume afterheat utilize combination unit, comprise flue 7, flue 7 is respectively arranged with one-level electric cleaner 1 and secondary electric cleaner 2, air-water heat exchanger 6 is provided with in flue 7 between one-level electric cleaner 1 and secondary electric cleaner 2, the water inlet of air-water heat exchanger 6 and the delivery port of heat supply network recirculated water are connected together, the delivery port of air-water heat exchanger 6 and the water inlet of heat supply network recirculated water are connected together, the flue 7 in the exit of secondary electric cleaner 2 is in series with three grades of electric cleaners 3 successively, level Four electric cleaner 4 and Pyatyi electric cleaner 5.
The inlet temperature of one-level electric cleaner 1 is 130 DEG C, and the outlet temperature of one-level electric cleaner 1 is 95 DEG C, and the heat exchange area of air-water heat exchanger 6 is 62860 square metres.
The present invention, when manufacturing or transform the electric cleaner of boiler, can install air-water heat exchanger 6 additional, recycles residual heat from boiler fume, reduces flue-gas temperature, improves boiler thermal output, improves dust collector efficiency, the water consumption of saving desulphurization system.The present invention is not only simple, and has good economic benefit and social benefit.
Claims (2)
1. flue gas efficient electric dedusting and fume afterheat utilize combination unit, comprise flue (7), flue (7) is respectively arranged with one-level electric cleaner (1) and secondary electric cleaner (2), it is characterized in that, air-water heat exchanger (6) is provided with in flue (7) between one-level electric cleaner (1) and secondary electric cleaner (2), the water inlet of air-water heat exchanger (6) and the delivery port of heat supply network recirculated water are connected together, the delivery port of air-water heat exchanger (6) and the water inlet of heat supply network recirculated water are connected together, the flue (7) in the exit of secondary electric cleaner (2) is in series with three grades of electric cleaners (3) successively, level Four electric cleaner (4) and Pyatyi electric cleaner (5).
2. a kind of flue gas efficient electric according to claim 1 dedusting and fume afterheat utilize combination unit, it is characterized in that, the inlet temperature of one-level electric cleaner (1) is 130 DEG C, the outlet temperature of one-level electric cleaner (1) is 95 DEG C, and the heat exchange area of air-water heat exchanger (6) is 62860 square metres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199147.8U CN204593425U (en) | 2015-04-03 | 2015-04-03 | The dedusting of flue gas efficient electric and fume afterheat utilize combination unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199147.8U CN204593425U (en) | 2015-04-03 | 2015-04-03 | The dedusting of flue gas efficient electric and fume afterheat utilize combination unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204593425U true CN204593425U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199147.8U Active CN204593425U (en) | 2015-04-03 | 2015-04-03 | The dedusting of flue gas efficient electric and fume afterheat utilize combination unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204593425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764033A (en) * | 2015-04-03 | 2015-07-08 | 中国能源建设集团山西省电力勘测设计院有限公司 | Combination device with high-efficiency flue-gas electric dust removal and flue-gas waste heat utilization |
-
2015
- 2015-04-03 CN CN201520199147.8U patent/CN204593425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764033A (en) * | 2015-04-03 | 2015-07-08 | 中国能源建设集团山西省电力勘测设计院有限公司 | Combination device with high-efficiency flue-gas electric dust removal and flue-gas waste heat utilization |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |