CN203626908U - Flue gas waste heat power generating device of low-temperature organic Rankine cycling industrial boiler - Google Patents
Flue gas waste heat power generating device of low-temperature organic Rankine cycling industrial boiler Download PDFInfo
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- CN203626908U CN203626908U CN201320574369.4U CN201320574369U CN203626908U CN 203626908 U CN203626908 U CN 203626908U CN 201320574369 U CN201320574369 U CN 201320574369U CN 203626908 U CN203626908 U CN 203626908U
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Abstract
The utility model provides a flue gas waste heat power generating device of a low-temperature organic Rankine cycling industrial boiler. The flue gas waste heat power generating device comprises a waste heat collection device, a pressure adjusting valve, a heat-work power conversion machine, a condenser, a working medium storage tank and a working medium pump which are sequentially connected to form a ring, the waste heat collection device comprises an air bag, a preheater, an evaporator and a superheater, an inlet of the preheater is connected with the working medium pump while an outlet of the same is connected with the air bag, both an inlet and an outlet of the evaporator are connected with the air bag, and an inlet of the superheater is connected with the air bag while an outlet of the same is connected with the pressure adjusting valve. Recycling temperature of the flue gas waste heat power generating device of the industrial boiler can be lowered substantially, low-temperature flue gas waste heat at 40-200 DEG C can be effectively recycled, and sensible heat and latent heat in flue gas discharged by the industrial boiler are fully utilized for power generation, so that energy resources can be saved, energy resource utilization rate can be increased, haze air can be improved, and energy conservation and emission reduction can be effectively realized.
Description
Technical field
The utility model belongs to industrial afterheat power generation field, particularly a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device.
Background technique
Industrial boiler is the boiler for industrial production and heating, can be divided into three kinds of fire coal, fuel oil and gas fired boilers.The BTHE of general industry boiler only has 57%, and its temperature of exhaust fume is probably between 150 ℃～204 ℃, and industrial boiler stack gases waste heat accounts for the nearly 20% of boiler heat source, causes a large amount of waste heats not to be fully utilized.Owing to being low temperature exhaust heat below 150 ℃, domestic cogeneration technology cannot be recycled this low-temperature heat source at present, causes a large amount of energy wastes.For example, the consumption of the coal of domestic station boiler is 1,500,000,000 tons, and the consumption of all the other industrial boilers is 6.5 hundred million tons, 21.5 hundred million tons of the consumption of coal total amounts of Chinese industrial boiler in 2011.If we can reclaim the smoke discharging residual heat energy of this electric power of 20% and industrial boiler, that just can save 4.3 hundred million tons of standard coals, and energy-conservation latent space is huge.
In the end of the year 2011, national active boiler quantity is 620,000.Whole nation industry coal-boiler uses Air Pollution Control not extensive, conventionally only has the simple mechanism of removing particulate matter.Huge energy consumption and the energy consumption structure take coal as master are China's atmospheric pollution for a long time and the main reason that produces haze.China's SO2 emissions 90%, nitrogen oxide emission 67%, 70% and mercury emission of smoke discharge amount 40% all come from fire coal.Approximately 9,000 ten thousand tons, approximately 1,000 ten thousand tons of the coal fire discharged sulfur dioxide of industrial boiler, approximately 2,000,000 tons of oxynitrides, approximately 1,000,000 tons, dust, waste residue beyond China's generating in 2010 are the second largest coal-smoke pollution sources that is only second to coal-fired electric generation furnace.Particularly coal-burned industrial boiler tops the list with high energy consumption, poor efficiency, high pollution.If can make full use of industrial boiler stack gases waste heat, for improve utilization rate of coal, reduce coal-fired use amount, reduce pollutant discharge amount of great advantage.
Model utility content
Model utility object: the purpose of this utility model is to provide a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device, can be used for utilizing industrial boiler stack gases low temperature exhaust heat.
Technological scheme: a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device that the utility model provides, comprises the surplus heat collection device, pressure regulator valve, hot merit power-converting machinery, condenser, working medium holding vessel and the working medium pump that are in turn connected into ring; Described surplus heat collection device comprises gas bag, preheater, vaporizer and superheater, and preheater import is connected with working medium pump, outlet is connected with gas bag, and evaporator is all connected with gas bag with outlet, and superheater import is connected with gas bag, outlet is connected with pressure regulator valve.
As improvement, the evaporating temperature of described vaporizer is 30 ℃-100 ℃.
Improve as another kind, also comprise generator, described generator is connected with hot merit power-converting machinery.
Improve as another kind, described hot merit power-converting machinery is steam turbine or decompressor.
As further improvement, described decompressor is scroll expansion machine, screw type decompressor, centrifugal decompressor or piston expansion engine.
Improve as another kind, described condenser is water-cooled condenser or air-cooled condenser.
Improve as another kind, described low form organic Rankine circulation cement plant device for generating power by waste heat adopt critical temperature below 100 ℃, the single or mixed working fluid of boiling point below-40 ℃ be as cycle fluid.
As further improvement, described working medium is selected from one or both in propane and carbon dioxide.
Beneficial effect: the low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device that the utility model provides can significantly reduce the recovered temperature of industrial boiler flue gas waste heat power generation device, can effectively reclaim the low-temperature flue gas waste heat of 40 ℃-200 ℃, make full use of sensible heat and latent heat generating in the flue gas of industrial boiler discharge, thereby can energy saving, improve energy utilization rate, improve haze air, effectively realize energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device, is shown in Fig. 1, comprises generator 7 and is in turn connected into surplus heat collection device 1, pressure regulator valve 2, hot merit power-converting machinery 3, condenser 4, working medium holding vessel 5, the working medium pump 6 of ring; Surplus heat collection device 1 comprises gas bag 11, preheater 12, vaporizer 13, superheater 14, preheater 12 imports are connected with working medium pump 6, outlet is connected with gas bag 11, vaporizer 13 imports are all connected with gas bag 11 with outlet, and superheater 14 imports are connected with gas bag 11 tops, outlet is connected with pressure regulator valve 2; Generator 7 is connected with hot merit power-converting machinery 3.
In the utility model, the evaporating temperature of vaporizer 13 is controlled at the low-temperature region between 30-100 ℃ by the Choice and design of working medium.
Described hot merit switch machine 4 is steam turbine; Alternatively, also can select the hot merit switch machine of any appropriate; Preferably, can select steam turbine or decompressor, wherein, decompressor includes but not limited to scroll expansion machine, screw type decompressor, centrifugal decompressor and piston expansion engine.
Working principle of the present utility model is:
Industrial boiler flue gas passes in heat recovery boiler 8, the preheater 12 of surplus heat collection device 1, vaporizer 13, superheater 14 are arranged in heat recovery boiler 8, working medium pump 6 is transported to working medium heating in surplus heat collection device 1 and becomes the steam that pressure is higher from liquid container 5, waste heat in flue gas is heated to working substance steam subcritical or supercritical state continuously, steam enters the 3 expansion actings of hot merit power-converting machinery by pressure regulator valve 2, drive generator 7 to generate electricity, the working medium of exhaust steam enters condenser 4, after condensation, get back to liquid tank 5, complete once circulation.
Above-mentioned low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device be can be applicable to the circulating generation under different temperatures and environmental conditions.
Application example one, evaporator evaporation temperature is 100 ℃, and condenser condenses temperature is 30 ℃, adopts propane as cycle fluid, and condenser 4 adopts water-cooled condenser, the results are shown in Table 1.
Table 1 low form organic Rankine circulation (LTORC) and the both at home and abroad comparison of low-temperature cogeneration
The definition of heat recovery rate: (waste heat supply temperature-generating operation temperature)/(waste heat supply temperature-ambient temperature), namely waste heat can be used for the ratio of the part of generating.
As seen from the above table:
(1), as long as heat source temperature reaches more than 100 ℃, can utilize the generating of the utility model equipment.
(2) reclaim 150 ℃ of residual heat from boiler fume, the utility model can reach 42% heat recovery rate, but low-temperature cogeneration both domestic and external all can not utilize such thermal source.
Application example two, evaporator evaporation temperature is 60 ℃, and condenser condenses temperature is 30 ℃, and the mixture of employing propane and carbon dioxide is as cycle fluid as cycle fluid, and condenser 4 adopts air-cooled condenser, the results are shown in Table 2.
Table 2 low form organic Rankine circulation (LTORC) and the both at home and abroad comparison of low-temperature cogeneration
As seen from the above table:
(1), as long as heat source temperature reaches more than 60 ℃, can utilize the generating of the utility model equipment.
(2) reclaim 100 ℃ of waste heats, the utility model can reach 57% heat recovery rate, but low-temperature cogeneration both domestic and external all can not utilize such thermal source.
(3) reclaim 150 ℃ of waste heats, the utility model can reach 75% heat recovery rate, but low-temperature cogeneration both domestic and external is general equal can not utilize such thermal source.
Application example three, evaporator evaporation temperature is 30 ℃, and condenser condenses temperature is 0 ℃, adopts carbon dioxide as cycle fluid, and condenser 4 adopts air-cooled condenser, is suitable for northern cold area.The results are shown in Table 3.
Table 3 low form organic Rankine circulation (LTORC) and the both at home and abroad comparison of low-temperature cogeneration
As seen from the above table:
(1), as long as heat source temperature reaches more than 30 ℃, can utilize the generating of the utility model equipment.
(2) reclaim 60 ℃ of waste heats, the utility model can reach 50% heat recovery rate, but low-temperature cogeneration both domestic and external all can not utilize such thermal source.
(3) reclaim 100 ℃ of waste heats, the utility model can reach 70% heat recovery rate, but low-temperature cogeneration both domestic and external is general equal can not utilize such thermal source.
(4) reclaim the waste heat of 150 ℃, the utility model can reach 80% heat recovery rate, but low-temperature cogeneration both domestic and external is general equal can not effectively utilize such thermal source.
Disclosed is above only specific embodiment of the utility model, and temperature range in addition, can design working medium according to the height of the temperature of waste heat and ambient temperature, adjusts the ratio of each component, to reach the highest hot merit conversion efficiency and heat recovery rate.In example, adopt the comparison of working medium and advise that applicable waste heat supply temperature is as table 4.
Table 4 low form organic Rankine follows the characteristic of working medium
Disclosed is above only specific embodiment of the utility model; but the utility model is not limited thereto; in addition; the utility model can also other modes be realized; do not departing under the prerequisite of the design of the utility model model utility and model utility spirit, any apparent change and replacement are all within protection domain of the present utility model.
Claims (8)
1. a low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device, is characterized in that: comprise the surplus heat collection device (1), pressure regulator valve (2), hot merit power-converting machinery (3), condenser (4), working medium holding vessel (5) and the working medium pump (6) that are in turn connected into ring; Described surplus heat collection device (1) comprises gas bag (11), preheater (12), vaporizer (13) and superheater (14), preheater (12) import is connected with working medium pump (6), outlet is connected with gas bag (11), vaporizer (13) import is all connected with gas bag (11) with outlet, and superheater (14) import is connected with gas bag (11), outlet is connected with pressure regulator valve (3).
2. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 1, is characterized in that: the evaporating temperature of described vaporizer (13) is 30 ℃-100 ℃.
3. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 1, is characterized in that: also comprise generator (7), described generator (7) is connected with hot merit power-converting machinery (3).
4. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 1, is characterized in that: described hot merit power-converting machinery (3) is steam turbine or decompressor.
5. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 4, is characterized in that: described decompressor is scroll expansion machine, screw type decompressor, centrifugal decompressor or piston expansion engine.
6. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 1, is characterized in that: described condenser (4) is water-cooled condenser or air-cooled condenser.
7. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 1, is characterized in that: described low form organic Rankine circulation cement plant device for generating power by waste heat adopt critical temperature below 100 ℃, the single or mixed working fluid of boiling point below-40 ℃ be as cycle fluid.
8. a kind of low form organic Rankine cycle industrial residual heat from boiler fume electricity generating device according to claim 7, is characterized in that: described working medium is selected from the one in propane and carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574369.4U CN203626908U (en) | 2013-09-16 | 2013-09-16 | Flue gas waste heat power generating device of low-temperature organic Rankine cycling industrial boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320574369.4U CN203626908U (en) | 2013-09-16 | 2013-09-16 | Flue gas waste heat power generating device of low-temperature organic Rankine cycling industrial boiler |
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| CN203626908U true CN203626908U (en) | 2014-06-04 |
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| CN201320574369.4U Expired - Fee Related CN203626908U (en) | 2013-09-16 | 2013-09-16 | Flue gas waste heat power generating device of low-temperature organic Rankine cycling industrial boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564188A (en) * | 2014-12-29 | 2015-04-29 | 南京凯盛开能环保能源有限公司 | Full-automatic control method and full-automatic control system for cement waste heat power generation station |
| CN108302946A (en) * | 2018-01-22 | 2018-07-20 | 中信重工机械股份有限公司 | Flue gas heat recovery device based on Organic Rankine Cycle and control system |
| CN108625915A (en) * | 2018-04-27 | 2018-10-09 | 山西大学 | It is a kind of using boiler blowdown water and flue gas as the organic rankine cycle system of heat source |
| WO2019116104A3 (en) * | 2017-12-13 | 2019-08-15 | Zhejiang Planet Rose New Energy Co.,Ltd. | Geothermal energy system and method of producing power using s |
| US11280323B2 (en) | 2017-12-13 | 2022-03-22 | Kang Zhou | Geothermal energy system and method of producing power using same |
-
2013
- 2013-09-16 CN CN201320574369.4U patent/CN203626908U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564188A (en) * | 2014-12-29 | 2015-04-29 | 南京凯盛开能环保能源有限公司 | Full-automatic control method and full-automatic control system for cement waste heat power generation station |
| CN104564188B (en) * | 2014-12-29 | 2016-01-20 | 南京凯盛开能环保能源有限公司 | A kind of cement afterheat generation station control method for fully automatic and system |
| WO2019116104A3 (en) * | 2017-12-13 | 2019-08-15 | Zhejiang Planet Rose New Energy Co.,Ltd. | Geothermal energy system and method of producing power using s |
| CN111527292A (en) * | 2017-12-13 | 2020-08-11 | 周康 | Geothermal energy system and method for generating electricity using the same |
| US10895248B2 (en) | 2017-12-13 | 2021-01-19 | Kang Zhou | Geothermal energy system and method of producing power using same |
| CN111527292B (en) * | 2017-12-13 | 2021-08-06 | 周康 | Geothermal energy system and method for generating electricity using the same |
| US11280323B2 (en) | 2017-12-13 | 2022-03-22 | Kang Zhou | Geothermal energy system and method of producing power using same |
| CN108302946A (en) * | 2018-01-22 | 2018-07-20 | 中信重工机械股份有限公司 | Flue gas heat recovery device based on Organic Rankine Cycle and control system |
| CN108302946B (en) * | 2018-01-22 | 2020-02-11 | 中信重工机械股份有限公司 | Flue gas waste heat recycling device based on organic Rankine cycle and control system |
| CN108625915A (en) * | 2018-04-27 | 2018-10-09 | 山西大学 | It is a kind of using boiler blowdown water and flue gas as the organic rankine cycle system of heat source |
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| 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: 20140604 Termination date: 20150916 |
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| EXPY | Termination of patent right or utility model |