CN103618479B - Based on generating and the energy-storage system of South Pole astronomic station diesel generating set waste heat - Google Patents
Based on generating and the energy-storage system of South Pole astronomic station diesel generating set waste heat Download PDFInfo
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- CN103618479B CN103618479B CN201310699591.1A CN201310699591A CN103618479B CN 103618479 B CN103618479 B CN 103618479B CN 201310699591 A CN201310699591 A CN 201310699591A CN 103618479 B CN103618479 B CN 103618479B
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Abstract
The invention discloses a kind of generating based on South Pole astronomic station diesel generating set waste heat and energy-storage system, diesel generating set has discharge duct and fuel reserve tank, an air heat exchanger is outside equipped with at discharge duct, an evaporative condenser two phase flow self circulation heat exchange device is also connected with between discharge duct and fuel reserve tank, multiple electricity generation module be cascaded is provided with between discharge duct and air heat exchanger, electricity generation module is connected with storage battery by controller, electricity generation module comprises hot junction, cold junction and the generating body be made up of thermo-electric generation material, cold junction contacts with air heat exchanger, hot junction contacts with discharge duct, the evaporation section of evaporative condenser two phase flow self circulation heat exchange device is arranged in discharge duct, the condensation segment of evaporative condenser two phase flow self circulation heat exchange device is arranged in fuel reserve tank.The invention solves tail gas from diesel electric generator and be directly discharged into the thermal loss caused in air, improve capacity usage ratio.
Description
Technical field
The present invention relates to a kind of cogeneration and the energy-storage system that are applied to South Pole astronomic station, especially discard generating and the energy-storage system of waste heat based on observation station generating set.
Background technology
The South Pole is that the earth is not developed so far, unpolluted clean continent, is the desirable Holy Land of carrying out the scientific experiments such as astronomical observation.In order to the automatic astronomic station in the South Pole building China's independent design, manufacture and operational management and maintenance, need to solve many key technologies such as power supply guarantee, the control of generating indoor environment, lay the foundation for carrying out astronomical observation widely in the South Pole.The energy safeguard of astronomic station is provided by generating equipment (as diesel generating set etc.) in the cabin that generates electricity, because Antarctic region latitude is high, the solar radiant energy absorbed is less, therefore, year-round average temperature is generally lower than-50 DEG C, in order to ensure the normal work of generating equipment, in needs maintenance generating cabin, temperature is in the normal range of operation of generating equipment.And general diesel engine generator exhaust temperature is more than 400 DEG C, if exhaust directly enters in air, larger thermal loss will be caused, reduce capacity usage ratio.
Thermoelectric generator a kind ofly utilizes the temperature difference directly by device that thermal energy is electric energy, there is the life-span long, noiseless and the advantages such as various heating sources (as nuclear fuel, used heat) can be utilized, be applicable to the accessory power supply doing spacecraft, submarine cable system, offshore lighthouse, unattended observation station etc., there is larger application potential.
For ensureing the normal operation of diesel generating set, diesel engine inlet oil temperature need maintain within limits, therefore, will carry out preheating to fuel reserve tank.For this reason, the present invention devises a kind of cogeneration for South Pole astronomic station and energy-storage system.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of cogeneration and the energy-storage system that are applied to South Pole astronomic station are provided.
For achieving the above object, the technology used in the present invention solution is:
A kind of generating based on South Pole astronomic station diesel generating set waste heat and energy-storage system, described diesel generating set has discharge duct and fuel reserve tank, it is characterized in that, an air heat exchanger is outside equipped with at described discharge duct, an evaporative condenser two phase flow self circulation heat exchange device is also connected with between described discharge duct and fuel reserve tank, multiple electricity generation module be cascaded is provided with between described discharge duct and air heat exchanger, described electricity generation module is connected with storage battery by controller, described electricity generation module comprises hot junction, cold junction and the generating body be made up of thermo-electric generation material, described hot junction and cold junction are positioned at the two ends of generating body, described cold junction contacts with described air heat exchanger, described hot junction contacts with described discharge duct, the evaporation section of described evaporative condenser two phase flow self circulation heat exchange device is arranged in described discharge duct, the condensation segment of described evaporative condenser two phase flow self circulation heat exchange device is arranged in described fuel reserve tank.The operation principle of described evaporative condenser two phase flow self circulation heat exchange device is: at evaporation section, gas-liquid two-phase fluid heat absorption produces bubble, undergoes rapid expansion and boosting, propelling fluid working medium flows to the pressure imbalance existed between adjacent pipe, make fluid working substance Oscillation Flows between evaporation section and condensation segment, thus realize the transmission of heat.
Emission-control equipment is connected with before described discharge duct import.
The air inlet of described air heat exchanger is cold air, and exhaust directly enters in air, and in described air heat exchanger, air-flow direction is contrary with flow direction of exhaust gases in described discharge duct.
Described thermo-electric generation material is semi-conductor thermoelectric material.
Described semi-conductor thermoelectric material is antimony or copper.
Described controller is output control circuit, the electric current that adjustment temperature-difference power generation module exports and voltage.
Described evaporative condenser two phase flow self circulation heat exchange device comprises evaporation section and condensation segment.Evaporation section is arranged in discharge duct, and condensation segment is arranged in fuel reserve tank, and working solution (as ammonia) is housed in heat-exchanger rig.
When diesel generating set normally runs, diesel generator group exhaust enters described discharge duct, and heat is delivered to the hot junction of described temperature-difference power generation module from exhaust, and the hot-side temperature of described temperature-difference power generation module is raised; Cold air enters described air heat exchanger from the import of described air heat exchanger, in described air heat exchanger, air-flow direction is contrary with flow direction of exhaust gases in described discharge duct, heat is delivered to cold air from the cold junction of described temperature-difference power generation module, and described cold junction temperature is reduced; It is described semiconductor temperature differential generating material between the hot junction of described temperature-difference power generation module and cold junction, according to semiconductor temperature differential generating properties of materials, when its two ends exist the temperature difference, two ends can produce electromotive force, when the temperature difference is larger, electromotive force is comparatively large, and multiple thermo-electric generation material is mutually connected and can be improved power output; Described temperature-difference power generation module is connected with described controller, and described controller is made up of output control circuit, the electric current that the temperature-difference power generation module described in being controlled by output control circuit is exported and voltage; Described controller is connected with described batteries, and the power storage exported by described temperature-difference power generation module is in batteries.The evaporation section of described evaporative condenser two phase flow self circulation heat exchange device is furnished with in described discharge duct, the condensation segment of described evaporative condenser two phase flow self circulation heat exchange device is arranged in described fuel reserve tank, the working solution of described evaporation section is by heating exhaust gas, draw latent heat evaporation, condensation segment described in steam flows to, working solution steam releases latent heat, is condensed into liquid.The steam latent heat discharged that liquefies is delivered in described fuel reserve tank, preheating oil storage.Condensation water turns back to described evaporation section by capillary force effect and to absorb heat evaporation again, heat is delivered to described condensation segment from described evaporation section by the circulation of working solution, by described this intermediary of evaporative condenser two phase flow self circulation heat exchange device, the heat of exhaust just can pass to the oil storage in fuel reserve tank, realizes accumulation of energy process.
Beneficial effect of the present invention:
1, the invention solves tail gas from diesel electric generator and be directly discharged into the thermal loss caused in air, convert heat a part of in tail gas to electric energy by power generation sub-system, be stored in storage battery, achieve heat energy---electric transformation of energy; Utilize a part of heat in tail gas to carry out waste heat to the diesel oil in fuel reserve tank by energy-storage system, improve capacity usage ratio.
2, Antarctic region average temperature of the whole year is lower than-50 DEG C, and diesel exhaust gas temperature is generally more than 400 DEG C, therefore the hot junction of temperature-difference power generation module and cold-end temperature difference large, generated output is large.
Accompanying drawing explanation
Fig. 1 afterheat generating system schematic diagram;
Fig. 2 energy strorage by using residual heat system schematic.
In figure, 1. air heat exchanger outlet; 2. discharge duct import; 3. air heat exchanger; 4. discharge duct; 5. cold junction; 6. generating body; 7. hot junction; 8. evaporative condenser two phase flow self circulation heat exchange device evaporation section; 9. air heat exchanger import; 10. discharge duct outlets; 11. fuel reserve tanks; 12. evaporative condenser two phase flow self circulation heat exchange device condensation segments.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
As shown in Figure 1 to Figure 2, the astronomic station cogeneration of a kind of South Pole and energy-storage system.This system comprises cogeneration subsystem and energy strorage by using residual heat subsystem.Cogeneration subsystem comprises diesel generating set discharge duct 4, air heat exchanger 3, temperature-difference power generation module, controller and batteries, hot junction 7 thermo-contact of diesel generating set discharge duct 4 outer surface and temperature-difference power generation module, cold junction 5 thermo-contact of air heat exchanger 3 outer surface and temperature-difference power generation module, temperature-difference power generation module is connected with controller, and controller is connected with batteries; Waste heat stores subsystem and comprises diesel generating set discharge duct 4 and evaporative condenser two phase flow self circulation heat exchange device.
When diesel generating set runs, diesel generator group exhaust enters discharge duct 4, and heat is delivered to the hot junction 7 of temperature-difference power generation module from exhaust, and the temperature in hot junction 7 is raised; Cold air enters air heat exchanger 3 from the import 9 of air heat exchanger, and heat is delivered to cold air from the cold junction 5 of temperature-difference power generation module, and the temperature of cold junction 5 is reduced; It is generating body 6 that semiconductor temperature differential generating material is made between the hot junction 7 of temperature-difference power generation module and cold junction 5, according to semiconductor temperature differential generating properties of materials, when its two ends exist the temperature difference, two ends can produce electromotive force, when the temperature difference is larger, electromotive force is comparatively large, and multiple thermo-electric generation material is mutually connected and can be improved power output; Temperature-difference power generation module is connected with controller, controller is made up of output control circuit, controlled electric current and the voltage of temperature-difference power generation module output by output control circuit, controller is connected with batteries, and the power storage exported by temperature-difference power generation module is in batteries.
The evaporation section 8 of evaporative condenser two phase flow self circulation heat exchange device is furnished with in discharge duct 4, the condensation segment 12 of evaporative condenser two phase flow self circulation heat exchange device is arranged in fuel reserve tank 11, the working solution of evaporation section is by heating exhaust gas, draw latent heat evaporation, steam flows to condensation segment, working solution steam releases latent heat, is condensed into liquid.The steam latent heat discharged that liquefies is delivered in fuel reserve tank, preheating oil storage.Condensation water turns back to evaporation section by capillary force effect and to absorb heat evaporation again, heat is delivered to condensation segment from evaporation section by the circulation of working solution, by this intermediary of evaporative condenser two phase flow self circulation heat exchange device, the heat of exhaust just can pass to oil storage, realizes accumulation of energy process.
Claims (5)
1. the generating based on South Pole astronomic station diesel generating set waste heat and energy-storage system, described diesel generating set has discharge duct and fuel reserve tank, it is characterized in that, an air heat exchanger is outside equipped with at described discharge duct, an evaporative condenser two phase flow self circulation heat exchange device is also connected with between described discharge duct and fuel reserve tank, multiple electricity generation module be cascaded is provided with between described discharge duct and air heat exchanger, described electricity generation module is connected with storage battery by controller, described electricity generation module comprises hot junction, cold junction and the generating body be made up of thermo-electric generation material, described hot junction and cold junction are positioned at the two ends of generating body, described cold junction contacts with described air heat exchanger, described hot junction contacts with described discharge duct, the evaporation section of described evaporative condenser two phase flow self circulation heat exchange device is arranged in described discharge duct, the condensation segment of described evaporative condenser two phase flow self circulation heat exchange device is arranged in described fuel reserve tank, at described evaporation section, gas-liquid two-phase fluid heat absorption produces bubble, undergoes rapid expansion and boosting, propelling fluid working medium flows to the pressure imbalance existed between adjacent pipe, make fluid working substance Oscillation Flows between evaporation section and condensation segment, thus realize the transmission of heat, the air inlet of described air heat exchanger is cold air, and exhaust directly enters in air, and in described air heat exchanger, air-flow direction is contrary with flow direction of exhaust gases in described discharge duct.
2. generating according to claim 1 and energy-storage system, is characterized in that: be connected with emission-control equipment before described discharge duct import.
3. generating according to claim 1 and energy-storage system, is characterized in that: described thermo-electric generation material is semi-conductor thermoelectric material.
4. generating according to claim 3 and energy-storage system, is characterized in that: described semi-conductor thermoelectric material is antimony or copper.
5. generating according to claim 1 and energy-storage system, is characterized in that: described controller is output control circuit, the electric current that the temperature-difference power generation module described in adjustment exports and voltage.
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| CN201310699591.1A CN103618479B (en) | 2013-12-19 | 2013-12-19 | Based on generating and the energy-storage system of South Pole astronomic station diesel generating set waste heat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104775910B (en) * | 2015-04-28 | 2017-10-31 | 东南大学 | A kind of temperature control device of South Pole power module |
| CN104912634B (en) * | 2015-05-06 | 2016-08-24 | 东南大学 | South Pole generating cabin flue gas ash removal and bootstrap system |
| CN106246420B (en) * | 2016-08-12 | 2018-11-20 | 东南大学 | The oil storage system temperature control device of polar region scientific investigation station generating set |
| CN107171598B (en) * | 2017-07-12 | 2019-05-31 | 东南大学 | A kind of polar region thermo-electric generation system |
| CN108271338B (en) * | 2018-04-02 | 2023-09-05 | 中矿联创新能源集团有限公司 | Cooling waste heat power generation system of data center |
| CN108649838A (en) * | 2018-04-13 | 2018-10-12 | 东南大学 | A kind of lunar soil source temperature difference electricity generation device |
| CN108667347B (en) * | 2018-04-13 | 2020-06-02 | 东南大学 | Energy storage type temperature difference power generation device for lunar base station |
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