CN1049556A

CN1049556A - Solar energy generator with condensed light heat collector

Info

Publication number: CN1049556A
Application number: CN89106297A
Authority: CN
Inventors: 石行
Original assignee: XINKAI UNIVERSAL TRIAL PLANT XICHENG DISTRICT BEIJING
Current assignee: XINKAI UNIVERSAL TRIAL PLANT XICHENG DISTRICT BEIJING
Priority date: 1989-08-12
Filing date: 1989-08-12
Publication date: 1991-02-27

Abstract

The present invention is a kind of by photoelectric tracer controlling and driving motor and decelerator, make the optical axis of the globoidal mirror of optically focused energy collector aim at the sun all the time, so that the solar radiation intensity that unit are received on the solar battery on its focus idol part surface near or reach its maximum application intensity, the electromotive force of its generation is introduced storage battery, through inverter and the solar power generation of automatic switch rear line output and the combined unit of heat supply.Do not need working medium to carry out the multiple conversions of energy, equipment is formed simple, and is in light weight, and it is "dead" not have the no gas of heat, is a kind of more satisfactory electric energy producing method.

Description

Solar energy generator with condensed light heat collector

The present invention relates to a kind of collection use device of solar energy, exactly, relate to a kind of heat supply and combined unit of solar power generation of light focusing heat collecting type.

Solar energy is the never exhausted energy unique on the earth.According to the science estimation, the gross energy of the annual directive earth of the sun is about 1.3 * 10 ²¹Kilocalorie, wherein about 30% is gone back to the cosmic space by atmospheric reflectance, and 23% by Atmospheric Absorption, and all the other are 47%, promptly about 6.1 * 10 years old ²⁰Kilocalorie arrive the land and the ocean surface of the earth, fossil fuel that it is equivalent on the earth to be preserved substantially and 12.5 times of uranium fuel total amount! This is untapped huge energy! Reduce along with the digging day by day of various fossil fuel on the earth, people begin wholeheartedly to seek to tap a new source of energy for a long time, and solar energy is inexhaustible, nexhaustible because of it, just become one of focus of various countries scientist research.In these years, collection, the conversion of solar energy, store, pass on and practical application on obtained many progress.According to the interrelated data introduction, utilize artificial brine pit to collect the solar pond experiment power station that solar radiation can generate electricity and near the Dead Sea of Israel, build up operation, can generate electricity 150 kilowatts.And by more building up in succession and try out in many countries such as the U.S., France, Japan and Italy, Spain etc. in heat collector, heat-transfer system, accumulation of heat and the heat exchange series thermal power generation experiment power station that utilizes solar energy that turbine generating system forms that unifies, maximum power has reached 10,000 kilowatts, but these two kinds of solar power generation modes all are based on adopting the thermo-power station of rankine cycle, and Fig. 1 is the schematic diagram of this power station primary clustering.Equipment investment is huge, and power conversion changes heat energy earlier into by working medium and changes kinetic energy again into, and then generating efficiency is too low.So many scientists continue to study intensively tackling key problem on these two kinds of solar power generations.But, have direct absorption luminous energy and produce the concern that solar cell that electromotive force carries out opto-electronic conversion has attracted increasing scientists and engineers gradually.As far back as the fifties, photoelectric conversion device just is used on the deep space satellite mainly as power supply, in recent years, progressively aspect computer, electronic watch, broadcast receiver, camera and small charger, opens up in civilian and bigger scope again.Because it is meticulous that electrooptical device costs an arm and a leg, makes, seldom aspect civilian power generation equipment, use.Entered since the eighties, manufacturing improvement along with solar cell, the raising of cost reduction and device energy conversion efficiency, again since in the world energy demand rise year by year, and being becoming tight natural deposit day and appreciating of fossil energy, therefore, how more effectively, the problem of utilizing solar energy to generate electricity economically, mention once more on people's the agenda.

The purpose of this invention is to provide a kind of utilize solar energy as the energy efficiently, generating equipment cheaply.

The present invention is the device of a kind of light focusing heat collecting type solar power generation and heat supply, and the automatic tracing collection energy collector of being made up of optically focused energy collector, decelerator, drive motors, photoelectric tracer and the Blast Furnace Top Gas Recovery Turbine Unit (TRT) two parts that directly carry out opto-electronic conversion are constituted.Be characterized in constituting the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of opto-electronic conversion by solar cell idol part, storage battery, inverter and automatic switch.

Be not transformed into function again because the present invention will solar energy be transformed into heat energy, can be subjected to the restriction of Carnot cycle.The present invention only directly produces electric energy by solar radiation, can utilize the diffusion width of cloth of the sun to penetrate, equipment is formed simple, in light weight, do not need working medium, do not have the no gas of heat, "dead", safe in utilization, unit mass just has the output of sizable power, can be used for small-sized or large-scale generating, suitable especially isolated area's short of electricity and have the place of abundant sunlight resource to install and use.Also can be used as field work team, microwave after the device miniaturization does not have the power supply of the illumination or the work electricity consumption of workstation or navigation light, tower etc., and main equipment then can be used for the electrical network power interconnection to the city.

Fig. 1 is the power set schematic diagram that adopts rankine cycle.1 is condenser among the figure, the 2nd, and pump, the 3rd, evaporator (boiler), the 4th, turbine, the 5th, generator.

Fig. 2 is that equipment of the present invention is formed allocation plan.Optically focused energy collector in 6 among the figure, the 7th, decelerator, the 8th, drive huge moving motor, the 9th, photoelectric tracer, the 10th, photocell idol part, the 11st, hold middle pond, the 12nd, inverter, the 13rd, from the merit switch.Because energy density that too can light is low, in order to use effectively, adopt the globoidal glass mirror to make optically focused energy collector 6, solar radiation can be focused on its focus, can make the unit are width of cloth on receiver surface penetrate intensity like this and be increased to ten thousand times of several times to.And the automatic orientation tracking means with photoelectric tracer 9 controlling and driving motors 8 and decelerator 7 are formed can guarantee that the optical axis of the globoidal mirror of optically focused energy collector points to the sun all the time, can also automatically return to best operational position at sunrise in morning later in sunset.The rotating speed of the decelerator here is extremely low, on average per hour rotates about 15 °.So adopt cycloidal reducer or worm reducer, the little life-span of service wear is long.Photocell idol part 10 by the effect that is contained in solar cell 10 on the energy collector focus ' " forms; heat exchanger 10 " with the heat exchanger 10 at its back be the solar energy that is mapped to the photoelectricity idol except that a part converts electric energy to, surplus absorbed conduct by heat exchanger and live and use the hot water supply energy.Improve the conversion efficiency of solar cell and the total energy conversion efficiency of device so on the one hand, approaching or reach the maximum application intensity of solar cell, device temperature then drops in its tolerance band as far as possible.The ratio of performance to price of photocell idol is a practicability key of the present invention, and the product for civilian use #24998 SOLOR CHARGER area that can adopt American market now is that 12 1/2 " * 6 1/2 " its price is

39.95 unit/sheet can be accepted by the user.Along with technological progress, the cost performance of solar battery also will reduce, and helps further improvement of the present invention and applies.Again with the electromotive force of circuit after with transducing to storage battery 11 chargings, at this moment, can directly draw direct current and feed out, also can convert 50HZ to through inverter 12 again, 220V or 60HZ, the industrial-frequency alternating current of 11OV is through automatic switch 13 output power supplies.Automatic switch 13 power overload or outside can cut off the electricity supply automatically under the situation of circuit fault.Overcast and rainy for preventing continuously, in the absence at sunshine, the present invention can't power, the power supply of this device can with city's electrical network power interconnection with regulate supplies and peak electricity consumption.Blast Furnace Top Gas Recovery Turbine Unit (TRT) of the present invention can be installed on the metal framework with automatic tracing collection energy collector, forms an integral device, is convenient to field work team or unattended station and uses.Device such as photoelectric tracer and inverter can adopt solid-state module, to reduce volume and to reduce cost, improves standardization, integrated degree.The natural lighting intensity of considering the sun has different the variation, the effective area of energy collector should be the photocell maximum light harvesting area that allows to accept light intensity 1-2 doubly.When light electric transducer surpasses limit of its permission conversion capacity, will make photoelectric tracer depart from the optical axis position of tracking a little and remain on maximum fair with in the value scope.Revert to optical axis position and when illumination weakens, can automatically follow the tracks of, make device keep its maximum output load.

Claims

1, a kind of solar energy generator with condensed light heat collector, be by the optically focused energy collector, decelerator, the automatic tracing collection energy collector of drive motors, photoelectric tracer composition and Blast Furnace Top Gas Recovery Turbine Unit (TRT) two parts of opto-electronic conversion constitute, and it is characterized in that being made of solar cell idol part, storage battery, inverter and automatic switch the Blast Furnace Top Gas Recovery Turbine Unit (TRT) of opto-electronic conversion.

2, device of solar generating according to claim 1 is characterized in that decelerator B can adopt cycloidal reducer or worm reducer.

3, device of solar generating according to claim 1 is characterized in that solar cell idol part can select product for civilian use #24998 Solor CHAGER produced in USA for use.

4, device of solar generating according to claim 1 is characterized in that solar cell idol part is to constitute compound even part by photocell idol part and heat exchanger, and heat exchanger is a water heater usually.

5, device of solar generating according to claim 1, the collection area that it is characterized in that the optically focused energy collector should be 2 times of transducing design calculated value.