CN101943143A - Disk solar thermoelectric generator - Google Patents

Disk solar thermoelectric generator Download PDF

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Publication number
CN101943143A
CN101943143A CN 201010281857 CN201010281857A CN101943143A CN 101943143 A CN101943143 A CN 101943143A CN 201010281857 CN201010281857 CN 201010281857 CN 201010281857 A CN201010281857 A CN 201010281857A CN 101943143 A CN101943143 A CN 101943143A
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CN
China
Prior art keywords
heat
control valve
reversing control
cylinder
receiver
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CN 201010281857
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Chinese (zh)
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CN101943143B (en
Inventor
黄德中
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绍兴文理学院
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Publication of CN101943143A publication Critical patent/CN101943143A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Abstract

The invention discloses a disk solar thermoelectric generator which comprises a heliostat system, a condenser, a receiver, a high temperature heat storage tank and a working medium phase change engine, wherein sun is tracked by the heliostat system in real time; sunlight is reflected on the receiver by the condenser; high heat flux radiant energy reflected from the condenser is absorbed by the receiver positioned on a support, is transformed into high temperature heat of working fluid, and is stored in a heat transfer fused-salt medium in the high temperature heat storage tank; the working medium in the working medium phase change engine is heated by the high temperature fused-salt medium to drive the working medium phase change engine to rotate and make the generator generate electricity, and the heat energy is transformed into mechanical energy. The invention has the advantages of low cost, reasonable design, simple structure and high work efficiency, and has the characteristics of no exhaust emission, oil and coal replacement, no environmental pollution and low carbon.

Description

The disc type solar energy thermoelectric generator

Technical field

The present invention relates to a kind of disc type solar energy thermoelectric generator, be used in the occasion of small-sized solar generating.

Background technique

At present, oil, coal reserves are limited, and rise in price is the CO that fuel combustion produces with oil coal 2, SO 2Environment is produced very big harm, danger utmost point human existence.Utilizing solar electrical energy generation, do not have toxic emission, is 21 century energy development direction.Tower type solar cost of electricity-generating height, investment is many, takes up an area of greatly, can not widespread usage.The disc type solar energy thermal power generation, volume is little, and cost is few, good reliability, the generating efficiency height can be widely used in the rural area, small business, individual family has development potentiality and application prospect.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide a kind of disc type solar energy thermoelectric generator, have that cost is low, reasonable in design, an advantage of simple structure, high working efficiency.And do not have toxic emission, can substitute oil, coal, have free from environmental pollution, the characteristics of low-carbon (LC).

For reaching above-mentioned purpose, the present invention adopts following technological scheme,

A kind of disc type solar energy thermoelectric generator comprises the heliostat system, condenser, receiver, high-temperature heat accumulation jar and Working fluid phase changing motor; Heliostat system wherein, condenser and receiver are rack-mount respectively, and receiver links to each other with high-temperature heat accumulation jar, Working fluid phase changing motor respectively by pipeline; The heliostat system realizes the real-time tracking to the sun, condenser reflexes to sunlight on the receiver, the receiver that is positioned on the support absorbs by the next high heat flux radiation energy of condenser reflection, and be translated into the high temperature heat of working fluid and be stored in the heat transfer fused-salt medium in the high-temperature heat accumulation jar, utilize the working medium in the high-temperature molten salt medium heating working medium phase transformation motor again, drive the Working fluid phase changing engine rotation, drive generator for electricity generation, change heat energy into mechanical energy.

Described condenser is made up of the circular parabolic mirror of multiaspect, becomes circle-shaped distribution.

Described condenser is made up of the circular parabolic mirror of 9-12 face, and mirror diameter is 3-5m.

Described Working fluid phase changing motor comprises the cooling tower as low-temperature heat source, the cylinder of the first band piston, the cylinder of the second band piston, first heat exchanger, second heat exchanger, first reversing control valve, second reversing control valve, crank-connecting rod system; Timing gear, cooling waterpump; Wherein the receiver as high temperature heat source is connected with first reversing control valve by pipeline; Cooling tower is connected with second reversing control valve by pipeline; First reversing control valve links to each other with second heat exchanger with first heat exchanger respectively by pipeline, and second reversing control valve also links to each other with second heat exchanger with first heat exchanger respectively by pipeline; First heat exchanger is installed in the cylinder of the first band piston; Second heat exchanger is installed in the cylinder of the second band piston; Transmit by signal between first reversing control valve and second reversing control valve and the crank-connecting rod system; The crank-connecting rod system respectively with first piston, second piston is hinged mutually.

Described first reversing control valve, second reversing control valve are 24 logical reversing control valves, and its signal adopts mechanical cam mechanism or solenoid valve commutation.

The cylinder of the described first band piston, be full of refrigeration agent working medium in the cylinder of the second band piston, with 22 the 4 first logical reversing control valves, the heat-transfer path of second reversing control valve control receiver, cooling tower, make first heat exchanger, the second heat exchanger one after the other is to the cylinder of the first band piston, and the cylinder of the second band piston carries out heat supply and heat release, finishes a work cycle automatically.

Described working medium adopts liquid ammonia.

Be full of refrigeration agent working medium in a kind of a pair of cylinder that utilizes Working fluid phase changing circuit heat engine of the present invention, alternately cylinder is carried out heat supply and heat release with the selector valve of 224 logical mechanical cam controls or the heat exchanger in 2 cylinders of electromagnetic switch control valve control, the machinery of reversing control valve or electromagnetic signal are from the timing gear of connecting rod, last heat supply advance angle of piston arrives top dead center in the cylinder of the first band piston, when the cylinder of the second band piston arrives last heat release advance angle of lower dead center, 2 selector valve actions, receiver is to the cylinder heat supply of the first band piston, and the cylinder of the second band piston is to the cooling tower heat release.When piston moves to lower dead center from top dead center, bent axle rotates 180 degree, 2 selector valves commutations, and receiver is to the cylinder heat supply of the second band piston, and the cylinder of the first band piston is finished a work cycle automatically to the cooling tower heat release.

It is working fluid that fused-salt medium of the present invention adopts carbonite, chloride, fluoride and nitrate, utilize solar heat collector solar thermal energy is changed high temperature heat and to be stored in the heat transfer fused salt high-temperature heat accumulation jar medium, be stored in unnecessary heat in the high-temperature heat accumulation jar daytime, evening or the solar time of not having generating.

The invention has the beneficial effects as follows: the present invention finishes the switching of two cylinder heat supply heat releases automatically with the cold ﹠ heat source heating arrangement of Working fluid phase changing cycle heat engine, and two-way effect has improved efficiency of heat engine, helps improving efficiency of energy utilization; It is low to have cost, the advantage of simple structure, high working efficiency.And do not have toxic emission, can substitute oil, coal, have free from environmental pollution, the characteristics of low-carbon (LC).

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a Working fluid phase changing engine structure schematic diagram of the present invention.

Embodiment

Below in conjunction with the drawings and specific embodiments the present invention is further described in detail, following examples are explanation of the invention but the present invention is not limited to following examples.

As shown in Figure 1, a kind of disc type solar energy thermoelectric generator of present embodiment indication, disc type solar energy thermal power generation acc power is 5-30KW.Comprise heliostat system 1, condenser 2, receiver 3, high-temperature heat accumulation jar 4 and Working fluid phase changing motor 5; Heliostat system 1 wherein, condenser 2 and receiver 3 are installed in respectively on the support 6, and receiver 3 links to each other with high-temperature heat accumulation jar 4, Working fluid phase changing motor 5 respectively by pipeline; The real-time tracking that heliostat system 1 realizes sun A, condenser 2 reflexes to sunlight on the receiver 3, and described condenser 2 is made up of the circular parabolic mirror of 9-12 face, becomes circle-shaped distribution, and mirror diameter is 3-5m.The receiver 3 that is positioned on the support 6 absorbs by the next high heat flux radiation energy of condenser 2 reflections, and be translated into the high temperature heat of working fluid and be stored in the heat transfer fused-salt medium in the high-temperature heat accumulation jar 4, utilize the working medium in the high-temperature molten salt medium heating working medium phase transformation motor 5 again, driving Working fluid phase changing motor 5 rotates, drive generator for electricity generation, change heat energy into mechanical energy.Described Working fluid phase changing motor 5 comprises the cylinder 10 as cylinder 9, the second band pistons of cooling tower 8, the first band pistons of low-temperature heat source, first heat exchanger, 11, the second heat exchangers, 16, the first reversing control valves 12, second reversing control valve 13, crank-connecting rod system 14; Timing gear 16, cooling waterpump 7; Wherein the receiver 3 as high temperature heat source is connected with first reversing control valve 12 by pipeline; Cooling tower 8 is connected with second reversing control valve 13 by pipeline; First reversing control valve 12 links to each other with second heat exchanger 16 with first heat exchanger 11 respectively by pipeline, and second reversing control valve 13 also links to each other with second heat exchanger 16 with first heat exchanger 11 respectively by pipeline; First heat exchanger 11 is installed in the cylinder 9 of the first band piston; Second heat exchanger 16 is installed in the cylinder 10 of the second band piston; Transmit by signal between first reversing control valve 12 and second reversing control valve 13 and the crank-connecting rod system 14; Crank-connecting rod system 14 is hinged mutually with first piston 17, the second pistons 18 respectively.The cylinder 9 of the described first band piston, be full of refrigeration agent working medium in the cylinder 10 of the second band piston, with 22 the 4 first logical reversing control valves 12, the heat-transfer path of second reversing control valve, 13 control receivers 3, cooling tower 8, its signal adopts mechanical cam mechanism or solenoid valve commutation.Make 16 one after the others of first heat exchanger, 11, the second heat exchangers be with the cylinder 10 of pistons to carry out heat supply and heat release, finish a work cycle automatically the cylinder 9, the second of the first band piston.

As shown in Figure 2, Fig. 2 is a Working fluid phase changing cycle engine schematic diagram, the cylinder 3 of the first band piston, be full of refrigeration agent working medium in the cylinder 4 of the second band piston, the working medium that present embodiment adopts is liquid ammonia or other refrigeration agent working medium, just be full of liquid ammonia or the liquid working medium of other refrigeration agent in the cylinder 9 of the first band piston, be full of gaseous ammonia or other refrigeration agent gaseous working medium in the cylinder 10 of the second band piston.With 224 first logical reversing control valves 12,13 controls of second reversing control valve as the receiver 1 of high temperature heat source, as the heat-transfer path of the cooling tower 8 of low-temperature heat source, make first heat exchanger 11,16 one after the others of second heat exchanger are to the cylinder 9 of the first band piston, the cylinder 10 of the second band piston carries out heat supply and heat release, finishes a work cycle automatically.

The motor of present embodiment is finished heat supply stroke and these two processes of heat release stroke, in described heat supply and heat release stroke stroke, first piston 17 in the cylinder 9 of the first band piston arrives last heat supply advance angle of top dead center, when second piston 18 in the cylinder 10 of the second band piston arrives last heat release advance angle of lower dead center, (highs and lows of the piston arrives when top dead center and lower dead center are 14 motions of crank-connecting rod system is determined by timing gear 15 positions); Timing gear 15 obtain the signal on the piston automatically, and be transferred to first reversing control valve 12 and second reversing control valve 13, this moment, the receiver 3 as high temperature heat source passed through the cylinder 9 inner refrigerant heat supplies of first heat exchanger 11 to the first band piston, working medium becomes gaseous state by liquid state after the receiver 3 as high temperature heat source absorbs heat, first piston 17 works done in the cylinder 9 of the volumetric expansion promotion first band piston; To cooling tower 8 heat releases as low-temperature heat source, the working medium volume shrinkage becomes liquid state again by gaseous state to working medium in the cylinder 10 of the second band piston by second heat exchanger 13, second piston, 18 actings in the cylinder 10 of the promotion second band piston.First piston 17 in the cylinder 9 of the first band piston moves to lower dead center from top dead center, second piston 18 in the cylinder 10 of the second band piston is when lower dead center moves to top dead center, bent axle in the crank-connecting rod system 14 rotates 180 degree, timing gear 15 obtain this signal automatically and are transferred to first reversing control valve 12, second reversing control valve 13, cause first reversing control valve 12,13 commutations of second reversing control valve, this moment, the receiver 3 as high temperature heat source passed through cylinder 10 heat supplies of second heat exchanger 16 to the second band piston, and the cylinder 9 of the first band piston passes through first heat exchanger 11 to cooling tower 8 heat releases as low-temperature heat source.Make 16 one after the others of first heat exchanger, 11, the second heat exchangers be with the cylinder 10 of pistons to carry out heat supply and heat release to the cylinder 9, the second of the first band piston; Automatically finish a work cycle.

The cold ﹠ heat source heating arrangement with the Working fluid phase changing cycle heat engine of present embodiment is finished the switching of two cylinder heat supply heat releases automatically, and two-way effect has improved efficiency of heat engine, helps improving efficiency of energy utilization; It is low to have cost, the advantage of simple structure, high working efficiency.

Claims (7)

1. a disc type solar energy thermoelectric generator is characterized in that: comprise heliostat system (1), condenser (2), receiver (3), high-temperature heat accumulation jar (4) and Working fluid phase changing motor (5); Heliostat system (1) wherein, condenser (2) and receiver (3) are installed in respectively on the support (6), and receiver (3) links to each other with high-temperature heat accumulation jar (4), Working fluid phase changing motor (5) respectively by pipeline; Heliostat system (1) realizes the real-time tracking to the sun, condenser (2) reflexes to sunlight on the receiver (3), the receiver (3) that is positioned on the support (6) absorbs by the next high heat flux radiation energy of condenser (2) reflection, and be translated into the high temperature heat of working fluid and be stored in the heat transfer fused-salt medium in the high-temperature heat accumulation jar (4), utilize the working medium in the high-temperature molten salt medium heating working medium phase transformation motor (5) again, driving Working fluid phase changing motor (5) rotates, drive generator for electricity generation, change heat energy into mechanical energy.
2. a kind of disc type solar energy thermoelectric generator as claimed in claim 1 is characterized in that: described condenser (2) is made up of the circular parabolic mirror of multiaspect, becomes circle-shaped distribution.
3. a kind of disc type solar energy thermoelectric generator as claimed in claim 2 is characterized in that: described condenser (2) is made up of the circular parabolic mirror of 9-12 face, and mirror diameter is 3-5m.
4. a kind of disc type solar energy thermoelectric generator as claimed in claim 1, it is characterized in that: described Working fluid phase changing motor (5) comprises the cooling tower (8) as low-temperature heat source, the cylinder (9) of the first band piston, the cylinder (10) of the second band piston, first heat exchanger (11), second heat exchanger (16), first reversing control valve (12), second reversing control valve (13), crank-connecting rod system (14); Timing gear (16), cooling waterpump (7); Wherein the receiver (3) as high temperature heat source is connected with first reversing control valve (12) by pipeline; Cooling tower (8) is connected with second reversing control valve (13) by pipeline; First reversing control valve (12) links to each other with second heat exchanger (16) with first heat exchanger (11) respectively by pipeline, and second reversing control valve (13) also links to each other with second heat exchanger (16) with first heat exchanger (11) respectively by pipeline; First heat exchanger (11) is installed in the cylinder (9) of the first band piston; Second heat exchanger (16) is installed in the cylinder (10) of the second band piston; Transmit by signal between first reversing control valve (12) and second reversing control valve (13) and the crank-connecting rod system (14); Crank-connecting rod system (14) respectively with first piston (17), second piston (18) is hinged mutually.
5. a kind of disc type solar energy thermoelectric generator as claimed in claim 4 is characterized in that: described first reversing control valve (12), second reversing control valve (13) are 24 logical reversing control valves, and its signal adopts mechanical cam mechanism or solenoid valve commutation.
6. a kind of disc type solar energy thermoelectric generator as claimed in claim 4, it is characterized in that: the cylinder (9) of the described first band piston, be full of refrigeration agent working medium in the cylinder (10) of the second band piston, with 224 logical first reversing control valves (12), second reversing control valve (13) control receiver (3), the heat-transfer path of cooling tower (8), make first heat exchanger (11), second heat exchanger (16) one after the other is to the cylinder (9) of the first band piston, the cylinder (10) of the second band piston carries out heat supply and heat release, finishes a work cycle automatically.
7. a kind of disc type solar energy thermoelectric generator as claimed in claim 6 is characterized in that: described working medium adopts liquid ammonia.
CN2010102818577A 2010-09-11 2010-09-11 Disk solar thermoelectric generator CN101943143B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128149A (en) * 2011-02-25 2011-07-20 上海齐耀动力技术有限公司 Phosgene-complementary disc-type sterling solar power generation device
CN103256191A (en) * 2013-05-27 2013-08-21 国电龙源电力技术工程有限责任公司 Dish type solar assisting coal-fired power generation system
CN105626405A (en) * 2016-01-05 2016-06-01 王旭 Manufacturing method for solar disc type system with heat storage device
CN106595077A (en) * 2016-10-31 2017-04-26 中航动力股份有限公司 Combined heat collection and power generation separated type solar-thermal power generation device
CN107061202A (en) * 2017-03-20 2017-08-18 吴联凯 A kind of TRT of utilization solar energy

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102128149A (en) * 2011-02-25 2011-07-20 上海齐耀动力技术有限公司 Phosgene-complementary disc-type sterling solar power generation device
CN103256191A (en) * 2013-05-27 2013-08-21 国电龙源电力技术工程有限责任公司 Dish type solar assisting coal-fired power generation system
CN103256191B (en) * 2013-05-27 2015-11-25 国电龙源电力技术工程有限责任公司 Disc type solar energy assistant coal power generation system
CN105626405A (en) * 2016-01-05 2016-06-01 王旭 Manufacturing method for solar disc type system with heat storage device
CN105626405B (en) * 2016-01-05 2018-10-30 王旭 A kind of preparation method of the solar energy disk system with heat-storing device
CN106595077A (en) * 2016-10-31 2017-04-26 中航动力股份有限公司 Combined heat collection and power generation separated type solar-thermal power generation device
CN107061202A (en) * 2017-03-20 2017-08-18 吴联凯 A kind of TRT of utilization solar energy
CN107061202B (en) * 2017-03-20 2019-02-12 吴联凯 A kind of power generator using solar energy

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