CN102305111A - Air liquefaction power generation device - Google Patents
Air liquefaction power generation device Download PDFInfo
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- CN102305111A CN102305111A CN201110271454A CN201110271454A CN102305111A CN 102305111 A CN102305111 A CN 102305111A CN 201110271454 A CN201110271454 A CN 201110271454A CN 201110271454 A CN201110271454 A CN 201110271454A CN 102305111 A CN102305111 A CN 102305111A
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Abstract
The invention discloses a new energy air liquefaction power generation device. The new energy air liquefaction power generation device comprises an air liquefaction device and a power generation device; in the air liquefaction device, air is pressurized, and then releases heat, is cooled, condensed and liquefied in a condenser, and enters a fractionation system; in the power generation device, a booster pump, a heat exchanger, the condenser, an expansion generator set, a throttling valve and the fraction system are sequentially connected; and in the power generation device, the fractionation system, the heat exchanger, a compressor, and the throttling valve are also sequentially connected. The power generation device can output cold to air of the air liquefaction device and adsorbs heat of air of the air liquefaction device to heat a liquid working medium into high-pressure supercritical fluid, the high-pressure supercritical fluid is subjected to expansion throttling work doing so as to generate power and is subjected to temperature and pressure reduction so as to obtain cold; thus, air liquefaction does not consume electricity and the power generation device can absorb heat of air and converts the heat into electrical energy, and the generated electric power is used by the new energy air liquefaction power generation device and also is transmitted to a power grid.
Description
Technical field
The present invention relates to a kind of generation of electricity by new energy device, especially a kind of air liquefaction electricity generating device.
Background technique
At present, known air energy power-generating device adopts in the heat pump enriched air By, the low temperature solar thermal energy in the water adopts the Rankine cycle system generating again.Wherein heat pump mainly comprises compressor, condenser, flow controller, vaporizer; The Rankine cycle power generation system mainly comprises condenser, recycle pump, vaporizer, expansion motor, generator.This heat pump type air can electricity generating device not only operation of heat pump need consumed energy, and the condenser of Rankine cycle power generation system also wants consumption of calorie, its complex structure, have a narrow range of temperature, energy density is low, especially low, the no net work of the thermal efficiency export, no use value.In addition, present known air liquefying apparatus adopts behind the compression normal temperature air expansion refrigeration to make the part air liquefaction carry out rectifying to reach the purpose of components such as oxygen in the separation of air, nitrogen, argon usually again.Main flow process be air compression-precooling-master cold-expansion-rectifying-re-heat; The different processes process is variant slightly; But its basic principle all be rely on the energy of consumed cabin air compressor compress normal temperature air again expansion acting decrease temperature and pressure obtain cold so that the part air liquefaction, the general energy consumption of existing air liquefying apparatus is high.
Summary of the invention
In order to overcome not only operation of heat pump need consumed energy of existing air energy power-generating device; And the condenser of Rankine cycle power generation system is also wanted consumption of calorie; Complex structure; Have a narrow range of temperature; Energy density is low; Especially the thermal efficiency is low; No net work output; No use value not enough and also for overcome energy that existing air liquefying apparatus relies on the consumed cabin air compressor compress normal temperature air again expansion acting decrease temperature and pressure obtain cold so that the high deficiency of part air liquefaction energy consumption; The present invention provides a kind of air liquefaction electricity generating device; The electricity generating device of this air liquefaction electricity generating device can be exported cold and give the air in the air liquefying apparatus; Absorb the heat energy of the air in the air liquefying apparatus simultaneously; The heating liquid refrigerant becomes high-pressure supercritical fluid; High-pressure supercritical fluid obtains cold through expansion acting while decrease temperature and pressure, and it is high to reach the electricity generating device thermoelectrical efficiency that makes the air liquefaction electricity generating device; Transformation of energy density is high; The specific power investment is low; Cost is low and make air liquefying apparatus obtain the purpose that cold reduces significantly the air liquefaction system energy consumption simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: this air liquefaction electricity generating device comprises air liquefying apparatus and electricity generating device two-part.First portion's air liquefying apparatus; Mainly comprise air compressor, condenser, fractionating system etc.; Also comprise pipeline, annex and the detection and the control gear that are connected in the system; The main technique flow process is gone the liquefaction of condenser heat release cooling partial condensation for get into compressor pressurizes and purification through filtered air after; Get into fractionating system again; Can obtain the liquid state and the gas products of the pure oxygen, purity nitrogen, straight argon etc. of ratio as required, unnecessary component is then discharged after the re-heat, also can directly discharge.The second portion electricity generating device; Mainly comprise suction booster; Heat exchanger; The expansion power generation unit; Throttle valve; Fractionating system; Compressor etc.; Generator and expansion motor are connected to form the expansion power generation unit; Electricity generating device is the condenser of common air liquefaction plant also; Fractionating system; Between electricity generating device and the air liquefying apparatus condenser is arranged; It also comprises the pipeline that is connected in the system; Annex and detection and control gear; Suction booster in the electricity generating device; Heat exchanger; Condenser; The expansion power generation unit; Heat exchanger; Throttle valve; Fractionating system connects successively; Fractionating system in the electricity generating device; Heat exchanger; Compressor; Heat exchanger; Throttle valve connects successively; The compressor inlet of electricity generating device connects heat exchanger; Outlet connects heat exchanger; The main technique flow process is that the liquid refrigerant in the fractionating system gets into heat exchanger by suction booster pressurization back; The condenser output cold that gets into air liquefying apparatus again makes air setting liquefaction to air; Absorb the heat of air simultaneously; Make working medium become high-pressure supercritical fluid; It is gaseous working medium that high-pressure supercritical fluid gets into expansion power generation unit expansion acting generating decrease temperature and pressure again; Gaseous working medium is crossed through heat exchanger and coldly behind the throttle valve throttling refrigeration, is got back to fractionating system again, forms work cycle; Gas working medium in the fractionating system get into the defeated enfleurage heat of heat exchanger by compressor pressurizes after again through heat exchanger heat release cooling after get back to fractionating system behind the throttle valve throttling refrigeration, form work cycle.Cycle fluid can be nitrogen or air.Suction booster can adopt diaphragm pump.The expansion power generation set main shaft can be connected with the suction booster main shaft.The expansion power generation set main shaft can be connected with compressor main shaft.This air liquefaction electricity generating device starts electricity usage storage battery or grid power, and generation power is uploaded electrical network except that personal.
The invention has the beneficial effects as follows; The electricity generating device of this air liquefaction electricity generating device can be exported the air that cold is given air liquefying apparatus; The heat energy heating working medium that absorbs air simultaneously becomes high-pressure supercritical fluid; High-pressure supercritical fluid through expansion acting generating simultaneously decrease temperature and pressure obtain cold, make the electricity generating device thermoelectrical efficiency of air liquefaction electricity generating device high, transformation of energy density is high, the specific power investment is low, cost is low and make air liquefying apparatus obtain cold simultaneously to reduce significantly the air liquefaction system energy consumption.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the workflow schematic representation of preferred embodiment of the present invention.
1. expansion power generation units among the figure, 2. heat exchanger, 3. throttle valve, 4. suction booster, 5. fractionating system, 6. throttle valve, 7. compressor, 8. condenser, 9. compressor.
Embodiment
In the embodiment shown in fig. 1, this air liquefaction electricity generating device comprises air liquefying apparatus and electricity generating device two-part.First portion's air liquefying apparatus; Mainly comprise compressor (9), condenser (8), fractionating system (5) etc.; Also comprise pipeline, annex and the detection and the control gear that are connected in the system; The main technique flow process is that air entering compressor (9) pressurization gets into condenser (8) heat release cooling condensation liquefaction again, and the air of liquefied air or partial liquefaction gets into fractionating system (5).The second portion electricity generating device; Mainly comprise suction booster (4); Heat exchanger (2); Expansion power generation unit (1); Throttle valve (3); Fractionating system (5); Compressor (7); Throttle valve (6) etc.; Generator and expansion motor are connected to form expansion power generation unit (1); Electricity generating device is the condenser of common air liquefaction plant (8) also; Fractionating system (5); It also comprises the pipeline that is connected in the system; Annex and detection and control gear; Suction booster in the electricity generating device (4); Heat exchanger (2); Condenser (8); Expansion power generation unit (1); Heat exchanger (2); Throttle valve (3); Fractionating system (5) connects successively; Fractionating system in the electricity generating device (5); Heat exchanger (2); Compressor (7); Heat exchanger (2); Throttle valve (6) connects successively; The main technique flow process is that the liquid refrigerant in the fractionating system (5) gets into heat exchanger (2) by suction booster (4) pressurization back; Condenser (8) the output cold that gets into air liquefying apparatus again makes air setting liquefaction to air; Absorb the heat of air simultaneously; Make working medium become high-pressure supercritical fluid; It is gaseous working medium that high-pressure supercritical fluid gets into expansion power generation unit (1) expansion acting generating decrease temperature and pressure again; Gaseous working medium is crossed through heat exchanger (2) and coldly behind throttle valve (3) throttling refrigeration, is got back to fractionating system (5) again, forms work cycle; Gas working medium in the fractionating system (5) get into the defeated enfleurage heat of heat exchanger (2) by compressor (7) pressurization after again through heat exchanger (2) heat release cooling after get back to fractionating system (5) behind throttle valve (6) throttling refrigeration, form work cycle.Cycle fluid is a nitrogen.Suction booster (4) adopts diaphragm pump.Expansion power generation unit (1) main shaft is connected with suction booster (4) main shaft.Expansion power generation unit (1) main shaft is connected with compressor (7) main shaft, and expansion power generation unit (1) main shaft is connected with compressor (9) main shaft.
Claims (7)
1. an air liquefaction electricity generating device comprises air liquefying apparatus and electricity generating device two-part; First portion's air liquefying apparatus mainly comprises compressor, condenser, fractionating system etc.; And the pipeline that is connected in the system, annex and detection and control gear; The second portion electricity generating device mainly comprises suction booster, heat exchanger, expansion power generation unit, throttle valve, fractionating system, compressor etc.; And the pipeline that is connected in the system, annex and detection and control gear, it is characterized in that: between electricity generating device and the air liquefying apparatus condenser is arranged.
2. air liquefaction electricity generating device according to claim 1 is characterized in that: suction booster, heat exchanger, condenser, expansion power generation unit, heat exchanger, throttle valve, fractionating system connect successively in the electricity generating device of this air liquefaction electricity generating device.
3. air liquefaction electricity generating device according to claim 1 is characterized in that: fractionating system, heat exchanger, compressor, heat exchanger, throttle valve connect successively in the electricity generating device of this air liquefaction electricity generating device.
4. air liquefaction electricity generating device according to claim 1 is characterized in that: the compressor inlet of the electricity generating device of this air liquefaction electricity generating device connects heat exchanger, and outlet connects heat exchanger.
5. air liquefaction electricity generating device according to claim 1 is characterized in that: the suction booster of the electricity generating device of this air liquefaction electricity generating device adopts diaphragm pump.
6. air liquefaction electricity generating device according to claim 1 is characterized in that: the cycle fluid of the electricity generating device of this air liquefaction electricity generating device is a nitrogen.
7. air liquefaction electricity generating device according to claim 1 is characterized in that: the expansion power generation set main shaft of the electricity generating device of this air liquefaction electricity generating device is connected with the suction booster main shaft, and the expansion power generation set main shaft is connected with compressor main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110271454A CN102305111A (en) | 2011-09-14 | 2011-09-14 | Air liquefaction power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110271454A CN102305111A (en) | 2011-09-14 | 2011-09-14 | Air liquefaction power generation device |
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| CN102305111A true CN102305111A (en) | 2012-01-04 |
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| CN201110271454A Pending CN102305111A (en) | 2011-09-14 | 2011-09-14 | Air liquefaction power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286496A (en) * | 2017-01-09 | 2018-07-17 | 华北电力大学（保定） | A kind of energy storing and electricity generating integral system using wind energy liquefied air and solar energy heating |
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2011
- 2011-09-14 CN CN201110271454A patent/CN102305111A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286496A (en) * | 2017-01-09 | 2018-07-17 | 华北电力大学（保定） | A kind of energy storing and electricity generating integral system using wind energy liquefied air and solar energy heating |
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Application publication date: 20120104 |