CN102392706A - Transcritical low-temperature air energy generating set - Google Patents
Transcritical low-temperature air energy generating set Download PDFInfo
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- CN102392706A CN102392706A CN 201110279848 CN201110279848A CN102392706A CN 102392706 A CN102392706 A CN 102392706A CN 201110279848 CN201110279848 CN 201110279848 CN 201110279848 A CN201110279848 A CN 201110279848A CN 102392706 A CN102392706 A CN 102392706A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
The invention relates to a transcritical low-temperature air energy generating set for new energy resource. The workflow of the transcritical low-temperature air energy generating set is as follows: after being pressurized by a booster pump, liquid working medium flows to a heat exchanger to output cold, is then turned into high-pressure supercritical fluid by a heat absorber, and expands to do work to generate electricity, part of the working medium is condensed by the heat exchanger, and then flows to the booster pump, and thereby an electricity-generating circulation system is formed; part of the working medium is throttled, expanded, cooled and depressurized to output cold, is then pressurized and cooled, and then flows to a throttle valve, and thereby a condensation circulation system is formed. The transcritical low-temperature air energy generating set also can be used for generating electricity with medium- and low-temperature heat sources such as residual heat, waste heat and terrestrial heat. The transcritical low-temperature air energy generating set condenses the working medium under the critical state, the cold in the system is sufficiently recycled, the power consumption of circulation is minimum, an outside cold source is not needed, the thermoelectric efficiency is high, the energy conversion density is high, the unit power investment is low, the cost is low, and the production of the cold air does not consume electricity. The transcritical low-temperature air energy generating set successfully breaks through the key difficult technology of low-temperature solar thermal power generation in terms of low thermal efficiency.
Description
Technical field
The present invention relates to a kind of generation of electricity by new energy device, especially a kind of stride critical Cryogenic air can electricity generating device.
Background technique
The tellurian energy overwhelming majority all derives from the sun, no matter wind energy, water ability, biological energy source or fossil energy--coal, oil, rock gas, combustible ice.In today of energy growing tension, the new clean generation technology of renewable green comes into one's own day by day.Now, in the new energy, the direct utilization technology-photovoltaic cell of solar energy generation technology such as waterpower, wind-force and solar power generation, minute surface heat build-up generation technology are quite ripe; The hydroelectric power development potentiality are little; And wind-force, sunlight too disperses, and makes that the direct electric power generator floor space of wind-force, sunlight is huge, one-time investment is high.Earth atmosphere every day is all at the energy that repeats to absorb and disperse solar radiation, and absorb in the environment liquid-air of solar heat energy, the solar thermal energy in the water upgrades every day, and is almost inexhaustible.Thereby people's technology of the thermal power generation in stepping up to study the environment liquid-air of new indirect utilization solar energy, in the water all.Wherein low-temperature solar energy heating power generation technology is the new and high technology of potential future.At present, known heat pump type low temperature heat energy electricity 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; Rankine cycle system mainly comprises condenser, recycle pump, vaporizer, expansion power generation unit.This heat pump type low-temperature solar energy heating power generation technology not only operation of heat pump needs consumed energy, and a large amount of heats that condenser consumed of Rankine cycle power generation system can not be used effectively by outflow system.Its investment is high, especially the thermal efficiency is low.
Summary of the invention
In order to overcome high, the low deficiency of the thermal efficiency especially of existing heat pump type low temperature heat energy electricity generating device investment; The present invention provides a kind of critical Cryogenic air ability electricity generating device of striding; This strides critical Cryogenic air can expand working medium by electricity generating device under supercritical state; Condensation under threshold state; Abundant cold in the cyclic utilization system, it is minimum to reach working medium condensation compression power consumption, makes to stride that critical Cryogenic air can electricity generating device need not extraneous low-temperature receiver, thermoelectrical efficiency is high, transformation of energy density is high, the specific power investment is low, cost is low, the purpose of not power consumption of by-product cold air.
The technical solution adopted for the present invention to solve the technical problems is: this strides critical Cryogenic air can mainly comprise heat absorber, expansion power generation unit, heat exchanger, throttle valve, compressor, suction booster by electricity generating device; Expansion motor and generator connect to form the expansion power generation unit; Suction booster, heat exchanger, heat absorber, expansion power generation unit, heat exchanger connect successively; It also comprises pipeline, annex and detection and the control gear that is connected in the system; Working medium is arranged in the closed system, and working medium is nitrogen etc. or mixed working fluid.In the closed circulation power generation system, working medium becomes high-pressure supercritical fluid through the heat energy heating working medium that heat absorber absorbs in low temperature environment fluid-air, in the water, and high-pressure supercritical fluid gets into expansion power generation unit expansion decrease temperature and pressure acting generating then; The outlet of expansion power generation unit is a threshold state working medium, and part working medium is removed suction booster after heat exchanger condensation cooling; Part working medium goes throttle valve or the decompressor of anti-liquid hammer expansion decrease temperature and pressure output cold to become the low-temp low-pressure gaseous working medium through heat exchanger or without heat exchanger; The low-temp low-pressure gaseous working medium is through compressor pressurizes; Again after the heat exchanger cooling; The partial condensation liquid refrigerant can remove suction booster, and all the other working medium are removed throttle valve or the decompressor of anti-liquid hammer circularly cooling, removes heat exchanger output cold after liquid refrigerant pressurizes through suction booster; The heat energy heating working medium that further absorbs in low temperature environment fluid-air, in the water through heat absorber again becomes high-pressure supercritical fluid, forms generating work cycle system.Heat absorber can adopt micro passage tubular type high-performance heat exchanger.Suction booster can adopt multi-stage diaphragm pump.Expansion motor and generator connect to form the expansion power generation unit.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 strides critical Cryogenic air can electricity generating device also can be installed on car and boat and other machinery as direct driving force device or charging unit.This strides critical Cryogenic air can also can be used for low temperature heat resource power generations such as waste heat used heat underground heat by electricity generating device; Can be when being used for low temperature heat resource power generations such as waste heat used heat underground heat with carbon dioxide or mixed working fluid.This strides critical Cryogenic air can electricity generating device by-product cold air.This strides critical Cryogenic air can start electricity usage storage battery or grid power by electricity generating device, and generation power is uploaded electrical network except that personal.
The invention has the beneficial effects as follows; This strides critical Cryogenic air can expand working medium by electricity generating device under supercritical state; Condensation under threshold state; Abundant cold in the cyclic utilization system, it is minimum to reach working medium condensation compression power consumption, makes to stride that critical Cryogenic air can electricity generating device need not extraneous low-temperature receiver, thermoelectrical efficiency is high, transformation of energy density is high, the specific power investment is low, cost is low, the not power consumption of by-product cold air.
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 one of preferred embodiment of the present invention.
Fig. 2 is the workflow schematic representation of another preferred embodiment of the present invention.
1. suction boosters among the figure, 2. heat absorber, 3. expansion power generation unit, 4. heat exchanger, 5. throttle valve, 6. compressor.
Embodiment
In the embodiment shown in fig. 1, this is striden critical Cryogenic air and can mainly comprise heat absorber (2), expansion power generation unit (3), heat exchanger (4), throttle valve (5), compressor (6), suction booster (1) by electricity generating device; Expansion motor and generator connect to form expansion power generation unit (3), and it also comprises pipeline, annex and detection and the control gear that is connected in the system, and working medium is arranged in the closed system, and working medium is nitrogen.In the closed circulation power generation system; Working medium becomes high-pressure supercritical fluid through the heat energy heating working medium that heat absorber (2) absorbs in low temperature environment fluid-air, in the water, and high-pressure supercritical fluid gets into expansion power generation unit (3) expansion decrease temperature and pressure acting generating then; Expansion power generation unit (3) outlet is a threshold state working medium, and part working medium is removed suction booster (1) after heat exchanger (4) condensation cooling; Part working medium goes throttle valve (5) expansion decrease temperature and pressure output cold to become the low-temp low-pressure gaseous working medium; The low-temp low-pressure gaseous working medium pressurizes through compressor (6); After heat exchanger (4) cooling, the partial condensation liquid refrigerant removes suction booster (1) again, and all the other working medium are removed throttle valve (5) circularly cooling; Remove heat exchanger (4) output cold after liquid refrigerant pressurizes through suction booster (1), the heat energy heating working medium that further absorbs in low temperature environment fluid-air, in the water through heat absorber (2) again becomes high-pressure supercritical fluid, forms generating work cycle system.Heat absorber (2) adopts micro passage tubular type high-performance heat exchanger.Suction booster (1) adopts multi-stage diaphragm pump.Expansion power generation unit (3) main shaft is connected with suction booster (1) main shaft.Expansion power generation unit (3) main shaft is connected with compressor (6) main shaft.
In embodiment illustrated in fig. 2, this strides critical Cryogenic air can mainly comprise heat absorber (2), expansion power generation unit (3), heat exchanger (4), throttle valve (5), compressor (6), suction booster (1) by electricity generating device; Expansion motor and generator connect to form expansion power generation unit (3).It also comprises pipeline, annex and detection and the control gear that is connected in the system, and working medium is arranged in the closed system, and working medium is nitrogen etc. or mixed working fluid.In the closed circulation power generation system; Working medium becomes high-pressure supercritical fluid through the heat energy heating working medium that heat absorber (2) absorbs in low temperature environment fluid-air, in the water, and high-pressure supercritical fluid gets into expansion power generation unit (3) expansion decrease temperature and pressure acting generating then; Expansion power generation unit (3) outlet is a threshold state working medium, and part working medium is removed suction booster (1) after heat exchanger (4) condensation cooling; Go throttle valve (5) expansion decrease temperature and pressure output cold to become the low-temp low-pressure gaseous working medium after the precooling of part working medium process heat exchanger (4); The low-temp low-pressure gaseous working medium pressurizes through compressor (6); Again after heat exchanger (4) cooling; The partial condensation liquid refrigerant removes suction booster (1), and all the other working medium are removed throttle valve (5) circularly cooling; Remove heat exchanger (4) output cold after liquid refrigerant pressurizes through suction booster (1), the heat energy heating working medium that further absorbs in low temperature environment fluid-air, in the water through heat absorber (2) again becomes high-pressure supercritical fluid, forms generating work cycle system.Heat absorber (2) adopts micro passage tubular type high-performance heat exchanger.Suction booster (1) adopts multi-stage diaphragm pump.Expansion power generation unit (3) main shaft is connected with suction booster (1) main shaft.Expansion power generation unit (3) main shaft is connected with compressor (6) main shaft.
Claims (6)
1. stride critical Cryogenic air and can mainly comprise heat absorber, expansion power generation unit, heat exchanger, throttle valve, compressor, suction booster by electricity generating device for one kind; It also comprises pipeline, annex and detection and the control gear that is connected in the system, it is characterized in that: suction booster, heat exchanger, heat absorber, expansion power generation unit, heat exchanger connect successively.
2. according to claim 1 stride critical Cryogenic air can electricity generating device, it is characterized in that: this is striden heat absorber that critical Cryogenic air can electricity generating device and adopts micro passage tubular type high-performance heat exchanger.
3. according to claim 1 stride critical Cryogenic air can electricity generating device, it is characterized in that: this is striden suction booster that critical Cryogenic air can electricity generating device and adopts multi-stage diaphragm pump.
4. according to claim 1 stride critical Cryogenic air can electricity generating device, it is characterized in that: this stride critical Cryogenic air can electricity generating device expansion power generation set main shaft with the suction booster main shaft between be connected, the expansion power generation set main shaft is connected with compressor main shaft.
5. according to claim 1 stride critical Cryogenic air can electricity generating device, it is characterized in that: this strides critical Cryogenic air can electricity generating device can be installed on car and boat and other machinery as direct driving force device or charging unit.
6. according to claim 1 stride critical Cryogenic air can electricity generating device, it is characterized in that: this strides critical Cryogenic air can be used for low temperature heat resource power generations such as waste heat used heat underground heat by electricity generating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110279848 CN102392706A (en) | 2011-09-20 | 2011-09-20 | Transcritical low-temperature air energy generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110279848 CN102392706A (en) | 2011-09-20 | 2011-09-20 | Transcritical low-temperature air energy generating set |
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| CN102392706A true CN102392706A (en) | 2012-03-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835766A (en) * | 2014-03-19 | 2014-06-04 | 苟仲武 | Efficient energy-saving power generation method and system |
| CN106574552A (en) * | 2014-02-26 | 2017-04-19 | 派瑞格恩涡轮技术有限公司 | Power generation system and method with partially recuperated flow path |
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2011
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106574552A (en) * | 2014-02-26 | 2017-04-19 | 派瑞格恩涡轮技术有限公司 | Power generation system and method with partially recuperated flow path |
| CN106574552B (en) * | 2014-02-26 | 2018-08-14 | 派瑞格恩涡轮技术有限公司 | Power generation system with partially recycled flow path and method |
| US10385735B2 (en) | 2014-02-26 | 2019-08-20 | Peregrine Turbine Technologies, Llc | Power generation system and method with partially recuperated flow path |
| US11047264B2 (en) | 2014-02-26 | 2021-06-29 | Peregrine Turbine Technologies, Llc | Power generation system and method with partially recuperated flow path |
| CN103835766A (en) * | 2014-03-19 | 2014-06-04 | 苟仲武 | Efficient energy-saving power generation method and system |
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Application publication date: 20120328 |