CN202692019U - Flue gas waste heat recycling system of steam boiler - Google Patents
Flue gas waste heat recycling system of steam boiler Download PDFInfo
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- CN202692019U CN202692019U CN 201220297042 CN201220297042U CN202692019U CN 202692019 U CN202692019 U CN 202692019U CN 201220297042 CN201220297042 CN 201220297042 CN 201220297042 U CN201220297042 U CN 201220297042U CN 202692019 U CN202692019 U CN 202692019U
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- heat exchanger
- steam boiler
- heat
- flue gas
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Abstract
The utility model discloses a flue gas waste heat recycling system of a steam boiler, wherein a coal saver, a deduster and a draught fan of the system are sequentially arranged in a flue gas exhaust channel of the steam boiler. The output end of a softening water tank is connected with the input end of an oxygen remover. The output end of the oxygen remover is connected with the input end of the coal saver, and the output end of the coal saver is connected with a water supplementing end of the steam boiler. A first heat exchanger and a second heat exchanger of the system are respectively arranged in the flue gas exhaust channel of the steam boiler and located between the coal saver and the deduster. Municipal water supply is connected with the input end of a heat exchange medium of the first heat exchanger, the output end of the heat exchange medium of the first heat exchanger is connected with the input end of the softening water tank, the output end of an air blower is connected with the input end of a heat exchange medium of the second heat exchanger, and the output end of the heat exchange medium of the second heat exchanger is connected with the air input end of the steam boiler. The flue gas waste heat recycling system of the steam boiler provided by the utility model is simple in structure, higher in recycling efficiency and is practical, the energy consumption of the steam boiler is effectively reduced, and the devices of the system are convenient to install.
Description
Technical field
The utility model relates to a kind of steam boiler flue gas heat recovery system.
Background technology
Steam boiler is as the visual plant of enterprise, can provide thermal source for industrial production or domestic life, to satisfy the needs of various production links.In the steam boiler During Process of Long-term Operation, steam with certain heat energy outwards is provided by combustion fuel, simultaneously can produce a large amount of high-temperature flue gas and be disposed to atmosphere when steam boiler burns, the high-temperature flue gas discharging not only causes a large amount of thermal waste, and the while is contaminated environment also.Existing flue gas waste heat recovery technology fails to take full advantage of the used heat of these high-temperature flue gas.As these flue gases are processed to lower state, corrosion and the low problem of organic efficiency are arranged again then.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of steam boiler flue gas heat recovery system, and native system is simple in structure, practical, and system equipment is easy for installation, has higher recycling efficient, effectively reduces the energy consumption of steam boiler.
For solving the problems of the technologies described above, the utility model steam boiler flue gas heat recovery system comprises steam boiler, the steam boiler exit flue, economizer, deduster, air-introduced machine, air blast, oxygen-eliminating device and softening water tank, described economizer, deduster and air-introduced machine are located in the described steam boiler exit flue successively, described softening water tank output connects described oxygen-eliminating device input, described oxygen-eliminating device output connects described economizer input, described economizer output connects described steam boiler moisturizing end, native system also comprises First Heat Exchanger and the second heat exchanger, described First Heat Exchanger and the second heat exchanger are located at respectively in the described steam boiler exit flue and between described economizer and deduster, the municipal administration moisturizing connects described First Heat Exchanger heat transferring medium input, described First Heat Exchanger heat transferring medium output connects described softening water tank input, described air blast output connects described the second heat exchanger heat transferring medium input, and described the second heat exchanger heat transferring medium output connects described steam boiler air input.
Further, above-mentioned First Heat Exchanger is finned water water-to-water heat exchanger, and above-mentioned the second heat exchanger is gas-gas heat exchanger.
Because the utility model steam boiler flue gas heat recovery system has adopted technique scheme, it is the economizer of native system, deduster and air-introduced machine are located in the steam boiler exit flue successively, the softening water tank output connects the oxygen-eliminating device input, the oxygen-eliminating device output connects the economizer input, the economizer output connects steam boiler moisturizing end, the First Heat Exchanger of native system and the second heat exchanger are located at respectively in the steam boiler exit flue and between economizer and deduster, the municipal administration moisturizing connects First Heat Exchanger heat transferring medium input, First Heat Exchanger heat transferring medium output connects the softening water tank input, the air blast output connects the second heat exchanger heat transferring medium input, and the second heat exchanger heat transferring medium output connects steam boiler air input.Native system is simple in structure, practical, and system equipment is easy for installation, has higher recycling efficient, effectively reduces the energy consumption of steam boiler.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the principle schematic of the utility model steam boiler flue gas heat recovery system.
The specific embodiment
As shown in Figure 1, the utility model steam boiler flue gas heat recovery system comprises steam boiler 1, steam boiler exit flue 2, economizer 3, deduster 6, air-introduced machine 8, air blast 7, oxygen-eliminating device 4 and softening water tank 5, described economizer 3, deduster 6 and air-introduced machine 8 are located in the described steam boiler exit flue 2 successively, described softening water tank 5 outputs connect described oxygen-eliminating device 4 inputs, described oxygen-eliminating device 4 outputs connect described economizer 3 inputs, described economizer 3 outputs connect described steam boiler 1 moisturizing end, native system also comprises First Heat Exchanger 9 and the second heat exchanger 10, described First Heat Exchanger 9 and the second heat exchanger 10 are located at respectively in the described steam boiler exit flue 2 and between described economizer 3 and deduster 6, the municipal administration moisturizing connects described First Heat Exchanger 9 heat transferring medium inputs, described First Heat Exchanger 9 heat transferring medium outputs connect described softening water tank 5 inputs, described air blast 7 outputs connect described the second heat exchanger 10 heat transferring medium inputs, and described the second heat exchanger 10 heat transferring medium outputs connect described steam boiler 1 air input.
Further, above-mentioned First Heat Exchanger 9 is finned water water-to-water heat exchangers, and above-mentioned the second heat exchanger 10 is gas-gas heat exchangers.
Air blast and the second heat exchanger consist of steam boiler fresh air preheating subsystem in the native system.The new wind of steam boiler enters the second heat exchanger by air blast, and the second heat exchanger absorbs the heat in the steam boiler flue gas, improves new air temperature, sends into steam boiler air compartment or drying fuel to heighten the efficiency of combustion of steam boiler again.
Economizer, First Heat Exchanger, softening water tank and oxygen-eliminating device consist of the pre-thermal sub-system of steam boiler moisturizing, municipal administration moisturizing input First Heat Exchanger also absorbs heat in the high-temperature flue gas, then input softening water tank, behind oxygen-eliminating device, carry out secondary heat exchange by economizer again, provide the steam boiler moisturizing after further improving water temperature, thereby reduced the energy consumption of steam boiler.
Economizer, First Heat Exchanger, the second heat exchanger, deduster and air-introduced machine consist of the fume emission subsystem of steam boiler in the native system, the steam boiler flue gas absorbs heat in the steam boiler discharging flue gas by air-introduced machine via economizer, First Heat Exchanger and the second heat exchanger, flue-gas temperature is effectively reduced, and then enter deduster, enter atmosphere by chimney.Thereby namely effectively utilized the heat energy of flue gas, also avoided the pollution to environment.
Claims (2)
1. steam boiler flue gas heat recovery system, comprise steam boiler, the steam boiler exit flue, economizer, deduster, air-introduced machine, air blast, oxygen-eliminating device and softening water tank, described economizer, deduster and air-introduced machine are located in the described steam boiler exit flue successively, described softening water tank output connects described oxygen-eliminating device input, described oxygen-eliminating device output connects described economizer input, described economizer output connects described steam boiler moisturizing end, it is characterized in that: also comprise First Heat Exchanger and the second heat exchanger, described First Heat Exchanger and the second heat exchanger are located at respectively in the described steam boiler exit flue and between described economizer and deduster, the municipal administration moisturizing connects described First Heat Exchanger heat transferring medium input, described First Heat Exchanger heat transferring medium output connects described softening water tank input, described air blast output connects described the second heat exchanger heat transferring medium input, and described the second heat exchanger heat transferring medium output connects described steam boiler air input.
2. steam boiler flue gas heat recovery according to claim 1 system, it is characterized in that: described First Heat Exchanger is finned water water-to-water heat exchanger, and described the second heat exchanger is gas-gas heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297042 CN202692019U (en) | 2012-06-25 | 2012-06-25 | Flue gas waste heat recycling system of steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297042 CN202692019U (en) | 2012-06-25 | 2012-06-25 | Flue gas waste heat recycling system of steam boiler |
Publications (1)
| Publication Number | Publication Date |
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| CN202692019U true CN202692019U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220297042 Expired - Fee Related CN202692019U (en) | 2012-06-25 | 2012-06-25 | Flue gas waste heat recycling system of steam boiler |
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| CN (1) | CN202692019U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134043A (en) * | 2013-01-29 | 2013-06-05 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN103292309A (en) * | 2013-06-19 | 2013-09-11 | 铁岭众缘环保设备制造有限公司 | Steam boiler composite waste heat recovery device |
| CN105733621A (en) * | 2016-04-19 | 2016-07-06 | 华能国际电力股份有限公司 | Coal pyrolysis poly-generation device coal gas and high-temperature fly ash waste heat utilizing system |
| CN106123314A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of energy-saving type boiler |
-
2012
- 2012-06-25 CN CN 201220297042 patent/CN202692019U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134043A (en) * | 2013-01-29 | 2013-06-05 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN103134043B (en) * | 2013-01-29 | 2015-04-08 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN103292309A (en) * | 2013-06-19 | 2013-09-11 | 铁岭众缘环保设备制造有限公司 | Steam boiler composite waste heat recovery device |
| CN105733621A (en) * | 2016-04-19 | 2016-07-06 | 华能国际电力股份有限公司 | Coal pyrolysis poly-generation device coal gas and high-temperature fly ash waste heat utilizing system |
| CN106123314A (en) * | 2016-08-12 | 2016-11-16 | 无锡欧玛森远洋工程设备有限公司 | A kind of energy-saving type boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI INTEGRITY LOW-CARBON TECHNOLOGY DESIGN CO Free format text: FORMER OWNER: SHANGHAI CHENGXIN JIANYE ENERGY CONSERVATION TECHNOLOGY CO., LTD. Effective date: 20130417 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130417 Address after: 201103 Shanghai City, Minhang District Wuzhong Road No. 618 building 22 floor Wuzhong Patentee after: SHANGHAI YINGTAIGERUI LOW CARBON TECHNOLOGY DESIGN CO., LTD. Address before: 201103 Shanghai City, Minhang District Wuzhong Road No. 618 building 22 floor Wuzhong Patentee before: Shanghai Chengxin Jianye Energy-Saving Technology Co.,Ltd. |
|
| 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: 20130123 Termination date: 20190625 |