CN202065995U - Boiler with flue gas afterheat recycling device - Google Patents
Boiler with flue gas afterheat recycling device Download PDFInfo
- Publication number
- CN202065995U CN202065995U CN2011200979254U CN201120097925U CN202065995U CN 202065995 U CN202065995 U CN 202065995U CN 2011200979254 U CN2011200979254 U CN 2011200979254U CN 201120097925 U CN201120097925 U CN 201120097925U CN 202065995 U CN202065995 U CN 202065995U
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- CN
- China
- Prior art keywords
- flue gas
- boiler
- cooling heat
- water cooling
- water
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a boiler with a flue gas afterheat recycling device. Three water cooling heat exchangers (2) are communicated through a flue gas pipe. The flue gas pipe is provided with a bent pipe (6) which is used for turning the flue gas pipe. Water outlets of three water cooling heat exchangers (2) are respectively communicated with a header tank. A water inlet of a water pump (4) is communicated with the header tank. A water outlet of the water pump is communicated with a steam bag of the boiler (1). A flue gas inlet of a first water cooling heat exchanger in the three water cooling heat exchangers (2) is communicated with a flue outlet of the boiler (1). A flue gas outlet of a third water cooling heat exchanger is communicated with a bag type dust removing device (5). The boiler with the flue gas afterheat recycling device has the following advantages: effectively improving utilization rate of energy, and saving fuel. The flue dust in the flue gas is discharged into atmosphere after dust remove by the bag type dust removing device and facilitates environment protection.
Description
Technical field
The utility model relates to field of boilers, is specifically related to a kind of boiler that is provided with flue gas waste heat recovery apparatus.
Background technology
At present, when boiler design was made, in order to prevent heated surface at the end of boiler corrosion and stifled ash, the standard state exhaust gas temperature generally was not less than 180 ℃, reaches as high as 250 ℃, and the high-temperature flue gas discharging not only causes a large amount of heat wastes, and the while is contaminated environment also.
The utility model content
The purpose of this utility model not only causes a large amount of heat wastes at present boiler high temperature fume emission exactly, and the while is the deficiency of contaminated environment also, and a kind of boiler that is provided with flue gas waste heat recovery apparatus is provided.
This practicality comprises boiler, it also has flue gas waste heat recovery apparatus, flue gas waste heat recovery apparatus is by three water cooling heat exchangers, header tank, water pump and exhaust dust device with bag constitute, three water cooling heat exchangers communicate by fume pipe, on fume pipe, be provided with and be used to elbow that fume pipe is turned to, the delivery port of three water cooling heat exchangers communicates with header tank respectively, the water inlet of water pump communicates with header tank, delivery port communicates with the drum of boiler, the gas approach of first water cooling heat exchanger in three water cooling heat exchangers communicates with the flue outlet of boiler, and the exhanst gas outlet of the 3rd water cooling heat exchanger communicates with exhaust dust device with bag.
The utility model has the advantages that: owing on boiler, added flue gas waste heat recovery apparatus, after the high-temperature flue gas of boiler emission enters three heat exchangers, heat is wherein absorbed by the heat exchanger inner cold water, makes cold water become hot water, with pump hot water is drawn in the boiler-steam dome to be used again.Improved rate of energy effectively, fuel saving.Flue dust in the flue gas enters atmosphere after the exhaust dust device with bag dedusting, the favorable environment protection.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1, the utility model comprises boiler 1, it also has flue gas waste heat recovery apparatus, flue gas waste heat recovery apparatus is by three water cooling heat exchangers 2, header tank 3, water pump 4 and exhaust dust device with bag 5 constitute, three water cooling heat exchangers 2 communicate by fume pipe, (be used to make flue gas in flue, to turn to being provided with the elbow that is used to fume pipe is turned on the fume pipe, reduce the flow velocity of flue gas, favourable heat exchange) 6, the delivery port of three water cooling heat exchangers 2 communicates with header tank respectively, the water inlet of water pump 4 communicates with header tank, delivery port communicates with the drum (drum) of boiler 1, the gas approach of first water cooling heat exchanger in three water cooling heat exchangers 2 communicates with the flue outlet of boiler 1, and the exhanst gas outlet of the 3rd water cooling heat exchanger communicates with exhaust dust device with bag 5.
Claims (1)
1. boiler that is provided with flue gas waste heat recovery apparatus, comprise boiler (1), it is characterized in that it also has flue gas waste heat recovery apparatus, flue gas waste heat recovery apparatus is by three water cooling heat exchangers (2), header tank (3), water pump (4) and exhaust dust device with bag (5) constitute, three water cooling heat exchangers (2) communicate by fume pipe, on fume pipe, be provided with and be used to elbow (6) that fume pipe is turned to, the delivery port of three water cooling heat exchangers (2) communicates with header tank respectively, the water inlet of water pump (4) communicates with header tank, delivery port communicates with the drum of boiler (1), the gas approach of first water cooling heat exchanger in three water cooling heat exchangers (2) communicates with the flue outlet of boiler (1), and the exhanst gas outlet of the 3rd water cooling heat exchanger communicates with exhaust dust device with bag (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200979254U CN202065995U (en) | 2011-04-07 | 2011-04-07 | Boiler with flue gas afterheat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200979254U CN202065995U (en) | 2011-04-07 | 2011-04-07 | Boiler with flue gas afterheat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065995U true CN202065995U (en) | 2011-12-07 |
Family
ID=45059857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200979254U Expired - Fee Related CN202065995U (en) | 2011-04-07 | 2011-04-07 | Boiler with flue gas afterheat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818359A (en) * | 2012-08-30 | 2012-12-12 | 辽宁中昊新技术有限公司 | Plate type coupling low-temperature flue gas waste heat recovery device for heating raw water |
| CN108980813A (en) * | 2017-06-02 | 2018-12-11 | 寰慧科技集团有限公司 | A kind of flue gas waste heat recovery apparatus |
-
2011
- 2011-04-07 CN CN2011200979254U patent/CN202065995U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818359A (en) * | 2012-08-30 | 2012-12-12 | 辽宁中昊新技术有限公司 | Plate type coupling low-temperature flue gas waste heat recovery device for heating raw water |
| CN108980813A (en) * | 2017-06-02 | 2018-12-11 | 寰慧科技集团有限公司 | A kind of flue gas waste heat recovery apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20180407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |