CN201705598U - Solar water heating thermoelectricity conversion device - Google Patents

Solar water heating thermoelectricity conversion device Download PDF

Info

Publication number
CN201705598U
CN201705598U CN2010202925131U CN201020292513U CN201705598U CN 201705598 U CN201705598 U CN 201705598U CN 2010202925131 U CN2010202925131 U CN 2010202925131U CN 201020292513 U CN201020292513 U CN 201020292513U CN 201705598 U CN201705598 U CN 201705598U
Authority
CN
China
Prior art keywords
water
outlet
solar
connects
vacuum tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010202925131U
Other languages
Chinese (zh)
Inventor
施德容
张高佐
戴军
郭佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shenghe New Energy Resources Science & Technology Co Ltd
Original Assignee
Shanghai Shenghe New Energy Resources Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Shenghe New Energy Resources Science & Technology Co Ltd filed Critical Shanghai Shenghe New Energy Resources Science & Technology Co Ltd
Priority to CN2010202925131U priority Critical patent/CN201705598U/en
Application granted granted Critical
Publication of CN201705598U publication Critical patent/CN201705598U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • 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
    • Y02E10/44Heat exchange systems
    • 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 utility model discloses a solar water heating thermoelectricity conversion device, which comprises a water storage tank, a heat exchanger, a turbine and a fractionation and condensation unit, wherein the device comprises at least one vacuum tube heat collector connected in series/parallel, the water outlet of the vacuum tube heat collector is connected with the water inlet of the water storage tank, the water outlet of the water storage tank is connected with the hot side inlet of the heat exchanger, the hot side outlet of the heat exchanger is connected with the water inlet of the vacuum tube heat collector via a first circulating water pump, the cold side of the heat exchanger is connected with the turbine and the fractionation and condensation unit via a Kalina circulating secondary loop respectively, and the turbine is connected with a generator via a gearbox. The solar water heating thermoelectricity conversion device provided by the utility model improves the efficiency of photothermal conversion by virtue of the vacuum tube heat collector, thereby reducing the cost of the system.

Description

Solar-powered water heating and heat-electricity converting device
Technical field
The utility model relates to a kind of hot water thermal electrical switching device, relates in particular to a kind of solar-powered water heating and heat-electricity converting device.
Background technique
Solar energy is meant the radiation energy of sunlight.The nuclear reaction by " hydrogen " fusion one-tenth " helium " in that solar interior carries out ceaselessly discharge huge energy, and constantly to the cosmic space radiation energy, this energy is exactly a solar energy.Solar energy is a kind of green, cleaning, the inexhaustible energy.Human just have three kinds substantially to the solar energy utilization: solar energy optical-thermal, photoelectricity and photochemical transformation of energy, and the conversion regime that is used to produce electric power has only the transformation of solar energy optical-thermal and photoelectricity.The form of photoelectric conversion is more single, and the main form of utilizing is a solar cell.The conversion regime of solar energy thermoelectricity and its apparatus are just many.A principle the most common of the thermoelectric conversion of solar energy is exactly to manage to obtain water vapor by the collection of solar energy, by the steam turbine acting, drives generator and produces electric power.
What routine solar light-heat power-generation system used all is the high temperature solar resource.The reason of the main use high temperature heat source of high temperature solar power generation system is that its turbine power generation unit is a conventional Rankine circulation power system, in order to guarantee its heat-economy, just must improve the initial temperature and the pressure of thermodynamic cycle.Solar energy resources is the lower resource of energy density, and this must assemble the energy of low energy densities by special device with regard to causing conventional solar light-heat power-generation, thereby can provide enough heats to add hot water, obtains the water vapor of High Temperature High Pressure.Such as the solar energy tower type generating, slot type generating etc. all need to drop into huge fund and build solar aggregation apparatus.Below just introduce several frequently seen solar light-heat power-generation system.
One, tower type solar power generation system
This system sets up tall and big tower on spacious level land, cat head installs and fixes a receiver and is equivalent to boiler, the heliostat that the disposed about of tower is a large amount of is assembled sunlight and reflexes on the receiver of cat head producing high temperature, and the high-temperature steam pushing turbine that generates in the receiver generates electricity.
Tower type solar energy thermal power generation can be divided into two kinds again by the difference of heating working medium, and a kind of is the heating pure water, another kind of for adding hot brine solution.Fig. 1 is the existing simple thermodynamic system schematic representation of salt tower type solar energy thermal power generation, see also Fig. 1, in salt tower type solar heat utilization power station, thousands of day mirror with solar light focusing to high building top heat absorber 101, heat changes the saline solution in the heat absorber over to, its temperature is elevated to 565 ℃ from 265 ℃, pyrosol is delivered in the hot salt storage 102 then, produce steam by steam generator 103, steam is after the acting of steam turbine 104 turbines, by getting back to 106 li of cold salt storages again after the condenser 105 heat releases cooling, squeeze into once more in the heat absorber 101 after boosting by salt solution pump 107.
Although the starting of tower type thermal generation system early, people also wish by heliostat as much as possible solar energy to be gathered the level of tens megawatts always, but the cost of tower system is high always, and industrialization is difficult, and its basic reason is the design of heliostat system.The reflective surface that it is heliostat that the heliostat of at present typical tower type thermal generation system all has two characteristics one nearly all adopts common sphere or plane, and the 2nd, the traditional elevation angle, azimythal angle formula is all used in the tracking of heliostat.These two design features cause tower type solar optically focused receiver to exist the following problem that is difficult to overcome:
1, the sun presented variation significantly at the hot spot that focuses on the tower within one day, caused the optically focused light intensity to fluctuate widely, and common sphere or planar mirror can't overcome the aberration that produces owing to solar motion.Because the card effect of the sun, the spot size that each reflector forms on central tower is along with the distance of it and central tower increases and linear growth, on the tower the last solar focusing hot spot that forms within one day can with the size of heliostat field from several meters change to tens meters big, so fluctuating widely appears in tower type solar energy thermal power generation station light light intensity.Add the different cosine effects of each heliostat, the photo-thermal conversion efficiency of tower system only is about 60%.Although at present in the design of some tower systems of relatively being particular about, the sphere that different heliostats is begun to adopt different curvature radius to be reducing the size of sun focal beam spot on tower, but the optical design complexity increases greatly and causes manufacture cost also and then to increase substantially.
2, numerous heliostats are set up around central tower, and the foundation of the central tower that floor space is huge must guarantee can not stop light mutually between each heliostat.Distance between each heliostat increases substantially along with the increase of they and central tower distance, thereby the floor space of tower type thermal generation system is index and increases sharply along with the increase of power level.
Because above-mentioned these problems although the tower type thermal generation system can realize 1000 ℃ focusing high temperature, are faced with the excessive problem of unit installed capacity investment always.The initial cost cost of tower system is 3.4 ten thousand~4.8 ten thousand yuan at present, and the cost reduction is very difficult, does not promote so tower system rests on demonstration phase over more than 50 year all the time and comes.
Two, groove type solar power generation system
This system a kind ofly reflexes to solar light focusing on the heat build-up pipe by the flute profile parabolic mirror, water is heated into the clean energy resource utilized device of steam pushing turbine generating by heat carrying agent in managing.The power in flute profile parabolic solar power station is 10~1000MW.Trough type solar power generation is prominent in present all solar energy thermal-power-generating stations.The heat transfer that system's heat collector collects is to the interior heat carrying agent that flows of pipe, heat carrying agent can be water vapour, deep fat or salt solution etc., used reflector is made by poor iron glass, and enough accuracy of manufacturing must be arranged for it so that sunlight reflection effectively under any circumstance.
The reflector that the flute profile parabolic solar collector is adopted is parabolic post.Sunlight reflected focuses on point-blank, the vacuum tube glass heat collector that is placed on the focal line absorbs the solar radiation that is focused, temperature can reach 400 ℃, high temperature heat-carrying matter heats the water generates water vapor in Intermediate Heat Exchanger, self temperature descends, flow back to the solar thermal collector heat absorption by heat-carrying matter recycle pump, constitute thermal source one loop.The water vapor that produces is the turbine acting in steam turbine, drives generator for electricity generation, and exhaust is condensed into water in condenser, after condensate pump and feed water pump boost, returns Intermediate Heat Exchanger again, continues circulation, and this constitutes second loop.
The slot type system has replaced the pipeline of point focusing and focusing along with the cylinder parabolic mirror is followed the tracks of solar motion together with linear focusing, with regard to having solved the not high problem of photo-thermal conversion efficiency that tower system causes owing to focal beam spot is inhomogeneous, photo-thermal conversion efficiency is brought up to about 70% like this.It is the tracking that can't realize under the fixed target that but the slot type system also brings a new problem, causes the system mechanics heaviness.Because the focusing pipeline in the middle of the solar receiver is fixed on the slot type reflector, along with each slot type reflector of reflection all is a big whole minute surface of length and width, windage is very big, the supporting structure that must change or add intensive reflector must cause initial cost cost and hot cost of electricity-generating to increase to increase the wind resistance of slot type system like this.
The receiver of slot type system is long, and heat diffusion area is big, and the solar receiver of slot type system is the very long heat absorption tube of root, although developed many new extinction technology.But its heat radiation comprises that the heat diffusion area that is caused by thermal radiation is bigger than its effective light-receiving area, therefore compares with tower with a type focusing system such as dish formula, and the heat loss of slot type system is bigger.
Three, disc type solar energy power generation system
The parabolic mirror that the disc type solar energy power generation system is made up of mirror more than 2000 is formed.Receiver is guided to 600~2000 ℃ the thermal source of collecting in the Stirling engine on paraboloidal focus, and heat-transfer working medium is heated to about 750 ℃, drives generator at last and generates electricity.The dish reflector is followed the tracks of sun's motion and is moved, and has overcome the loss problem of the big cosine effect of tower system, and photo-thermal conversion efficiency improves greatly, generally up to about 85%.
Dish formula receiver with solar focusing on the focus of the paraboloid of revolution, again because solar concentrator and Stirling engine can be extraordinary in conjunction with producing electric energy, it is that the net efficiency of electric energy can reach 29.4% with solar energy converting, is most effective in all solar electrical energy generations so Stirling circulates in the identical temperature range of operation.The disc type solar energy power generation system is used flexibly, both can make distributed system and power separately, also can generate electricity by way of merging two or more grid systems.
Being compared as follows shown in the table of disc type solar energy power generation system and groove type solar power generation system and tower type solar power generation system:
Tower Slot type The dish formula
Operating temperature (℃) 500-1000 260-400 500-1500
Sun light concentrating times 600-1000 8-80 200-3000
Photo-thermal conversion efficiency (%) 60 70 85
Cost of investment (the hybrid system generating that solar energy and other dyestuffs are formed) (ten thousand yuan/KW) 3,4 2,2 4,7
Cost of investment (using solar electrical energy generation separately) (ten thousand yuan/KW) 4,8 4,4 6,4
By last table as can be known, disc type solar energy generating operating temperature and optically focused are than being maximum, and its photo-thermal conversion efficiency ranks first at the similar system meta up to about 85%.The shortcoming of dish formula system is to involve great expense, and also is to occupy the first place in kind of system.The initial cost cost of dish formula heat generating system is up to 4.7 ten thousand~6.4 ten thousand yuan at present.The optically focused of pipe-dish type system is higher than very to the greatest extent, can reach 2000 ℃ high temperature, but high temperature like this does not need or even has destructive for present hot generation technology.So, the receiver of dish formula system generally is not placed on the focus, but require suitably to be placed in the lower humidity province according to performance index, in fact the advantage of high like this optically focused degree can not be fully played and the thermmal storage difficulty, and hot melt salt heat-storage technology is greatly dangerous and cost is high.
In sum, existing three kinds of solar light-heat power-generation technology all belong to the high temperature solar generation technology, this has just increased the solar thermal collector performance demands greatly, also just certainly will increase the fund input at the solar energy heating apparatus, has increased initial investment.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of solar-powered water heating and heat-electricity converting device, improves the photo-thermal transformation efficiency, reduces system cost.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to provide a kind of solar-powered water heating and heat-electricity converting device, comprise water-storing tank, heat exchanger, turbine engine and condensate fractionation unit, wherein, described device comprises at least one vacuum tube collector of connecting/being connected in parallel, the water outlet of described vacuum tube collector connects the water intake of water-storing tank, the water outlet of described water-storing tank connects the hot side-entrance of heat exchanger, the hot side outlet of described heat exchanger connects the water intake of vacuum tube collector by first circulating water pump, the cold side of described heat exchanger connects turbine engine and condensate fractionation unit respectively by Kalina circulation secondary circuit, and described turbine engine is connected with generator by gearbox.
Above-mentioned solar-powered water heating and heat-electricity converting device, wherein, described vacuum tube collector comprises at least one vacuum tube, described vacuum tube is fixed by the supporting structure of outside, scribble coating for selective absorption on the tube wall in vacuum tube, be provided with level/vertical fin of placing of a slice at least in vacuum tube, the U-shaped pipe that is provided with middle heat transfer medium in the pipe passes fin and is located in the vacuum tube, the two ends of U-shaped pipe are located at outside the vacuum tube, and the end of two adjacent U-shaped pipes interconnects.
Above-mentioned solar-powered water heating and heat-electricity converting device, wherein, described device also comprises thermometric regulator and solar water afterburning heating equipment, the input end of described thermometric regulator is connected with the water outlet of vacuum tube collector, output terminal divides two-way to connect described water-storing tank, wherein, the one tunnel directly connects water-storing tank, and first valve of leading up in addition connects water-storing tank; Described solar water afterburning heating equipment is arranged between described water-storing tank and the described first circulating water delivery side of pump, between solar water afterburning heating equipment and water-storing tank, be connected with second valve, between the solar water afterburning heating equipment and the first circulating water delivery side of pump, be connected with the 3rd valve, the first circulating water delivery side of pump connects the water intake of described vacuum tube collector by mixer, and mixer connects the thermometric regulator by the 4th valve.
Above-mentioned solar-powered water heating and heat-electricity converting device, wherein, described Kalina circulation secondary circuit comprises regenerator, the cold side outlet end of described regenerator connects the import that the back is connected vapor-liquid separator altogether with the cold side outlet end of heat exchanger, the vapor outlet end of described separator and liquid outlet end connect the hot side-entrance end of first throttle valve and regenerator respectively, described first throttle valve connects described turbine engine, what the steam (vapor) outlet end of described turbine engine and the hot side outlet end of regenerator connected altogether that the back is connected condenser treats the condensation side import, the condensation side outlet for the treatment of of described condenser connects second circulating water pump and second throttle valve successively, and described second throttle valve connects the cold side import of heat exchanger and regenerator simultaneously.
Above-mentioned solar-powered water heating and heat-electricity converting device, wherein, described condensate fractionation unit comprises condenser, top in condenser is provided with spraying device, the outlet of the condensation side of described condenser connects cooling tower, and the outlet of described cooling tower connects the condensation side import of condenser successively behind the 3rd circulating water pump and the 3rd throttle valve.
The utility model contrast prior art has following beneficial effect: the solar-powered water heating and heat-electricity converting device that the utility model provides, improve the photo-thermal transformation efficiency by vacuum tube collector, and reduce system cost.In addition, the utility model guarantees that by increasing thermometric regulator and solar water afterburning heating equipment solar-powered water heating and heat-electricity converting device can normally use under various weather conditions.Further, the utility model has increased the exchange heat area of U type pipe and external high temperature environment by increase the mode of fin on the U-shaped pipe, increases the heat that U type intraductal working medium absorbs, and further improves the photo-thermal transformation efficiency, reduces system cost.
Description of drawings
Fig. 1 is the existing simple thermodynamic system schematic representation of salt tower type solar energy thermal power generation;
Fig. 2 is a solar-powered water heating and heat-electricity converting device structural representation of the present utility model;
Fig. 3 A is the structural representation of solar energy vacuum tube heat collector in the solar-powered water heating and heat-electricity converting device of the present utility model;
Fig. 3 B is the local enlarged diagram of single vacuum tube among Fig. 3 A;
Fig. 3 C is the plan view of Fig. 3 B;
Fig. 4 is the connection diagram of the utility model band hot water afterburning heating equipment;
Fig. 5 is the structural representation of the utility model condensation unit;
Fig. 6 is the thermodynamic cycle plotted curve of solar-powered water heating and heat-electricity converting device of the present utility model.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 2 is a solar-powered water heating and heat-electricity converting device structural representation of the present utility model.
See also Fig. 2, the solar-powered water heating and heat-electricity converting device that the utility model provides comprises water-storing tank 2, heat exchanger 3, turbine engine 5 and condensate fractionation unit, wherein, described device comprises at least one vacuum tube collector 1 that is cascaded, the water outlet of described vacuum tube collector 1 connects the water intake of water-storing tank 2, the water outlet of described water-storing tank 2 connects the hot side-entrance of heat exchanger 3, the hot side outlet of described heat exchanger 3 connects the water intake of vacuum tube collector 1 by first circulating water pump 4, the cold side of described heat exchanger 3 connects turbine engine 5 and condensate fractionation unit respectively by Kalina circulation secondary circuit, and described turbine engine 5 is connected with generator 7 by gearbox 6.
Fig. 3 A is the structural representation of solar energy vacuum tube heat collector in the solar-powered water heating and heat-electricity converting device of the present utility model; Fig. 3 B is the local enlarged diagram of single vacuum tube among Fig. 3 A; Fig. 3 C is the plan view of Fig. 3 B.
See also 3A, 3B and 3C, the vacuum tube collector 1 of the solar-powered water heating and heat-electricity converting device that the utility model provides comprises at least one vacuum tube 8, supporting structure 11 by the outside is fixing, scribble coating for selective absorption on the tube wall in vacuum tube 8, its absorptivity α s 〉=95%, its conversion efficiency ε 〉=90%, in vacuum tube 8, be provided with level/vertical multi-disc fin of placing 9, not having the U-shaped pipe 10 of middle heat transfer medium to pass fin 9 in the pipe is located in the vacuum tube 8, the two ends of U-shaped pipe 10 are located at outside the vacuum tube 8, the end of two adjacent U-shaped pipes 10 interconnects, and 12 vacuum tubes 8 just are arranged in series so as shown in Figure 3A.
Kalina circulates in low temperature (≤150 ℃) section, the cycle efficiency height, it is high by 20~50% to circulate than conventional Rankine, therefore, the utility model adopts Kalina circulation secondary circuit as the thermal source circulation loop, as shown in Figure 2, this Kalina circulation secondary circuit comprises regenerator 19, the cold side outlet end of regenerator 19 connects the import that the back is connected vapor-liquid separator 20 altogether with the cold side outlet end of heat exchanger 3, the vapor outlet end of separator 20 and liquid outlet end connect the hot side-entrance end of first throttle valve 21 and regenerator 19 respectively, first throttle valve 21 connects turbine engine 5, what the steam (vapor) outlet end of turbine engine 5 and the hot side outlet end of regenerator 19 connected altogether that the back is connected condenser 22 treats the condensation side import, the condensation side outlet treated of condenser 22 connects the cold side import that second circulating water pump 23 and second throttle valve, 24, the second throttle valve 24 connect heat exchanger 3 and regenerator 19 simultaneously successively.Kalina(card Linne) circulation turbine is characterized in that adopting the ammonia water mixture of degree of thickening is working medium, reaches basic isothermal heat release by control ammonia concentration, increases amount of work.Ka1ina circulation steam discharge is a superheated vapor, thereby does not have condensing steam turbine loss of wet steam and the problem of washing away the erosion blade in the Rankine circulation.Specifically, its cycle fluid adopts ammonia-water mixed working fluid, and the ammoniacal liquor mixed working fluid has following physicochemical characteristic:
(1) unfixed boiling point and condensation point temperature;
(2) thermophysical property can change with the change of ammonia concentration;
(3) under the constant situation of thermal capacity, the temperature of mixture can change;
(4) low-down freezing point temperature;
(5) alkalescent.
Ammoniacal liquor thermal parameter under different pressure, temperature and the concentration situation: the calculating of enthalpy, specific volume and entropy can be based on NIST(American National technical standard research institute) equation of state of the ammonia water mixture formulated.Utilization NIST8.0 computer program calculates.
The utility model utilization be exactly the characteristics that ammonia water mixture has unsettled boiling temperature, can dwindle heat transfer temperature difference with thermal source.On thermal curve as shown in Figure 6, the heat absorption evaporator section, ammonia water mixture does not have the level pressure endothermic process, it can than the pure water of routine Duo the suction a part of heat.At condensating section, in like manner ammoniacal liquor does not have fixing condensation point, and at the heat release condensating section, it just can put a part of heat less.Many heat absorptions, few heat release, efficiency of thermal cycle can obtain raising.
Fig. 4 is the connection diagram of the utility model band hot water afterburning heating equipment.
In order under winter of night and sunlight deficiency or continuous rainy weather situation, to use, the utility model can further increase hot water afterburning heating equipment, see also Fig. 4, the water outlet of vacuum tube collector 1 connects thermometric regulator 12,12 fens two-way of thermometric regulator connect described water-storing tank 2, wherein, one the tunnel directly connects water-storing tank 2, first valve 13 of leading up in addition connects water-storing tank 2, between the outlet of the water-storing tank 2 and first circulating water pump 4, be connected with solar water afterburning heating equipment 15, between solar water afterburning heating equipment 15 and water-storing tank 2, be connected with second valve 16, between the outlet of the solar water afterburning heating equipment 15 and first circulating water pump 4, be connected with the 3rd valve 17, the outlet of first circulating water pump 4 is by the water intake of the described vacuum tube collector 1 of mixer 18 connections, and mixer 18 connects thermometric regulators 12 by the 4th valve 14.
The working procedure in this loop is: under the radiation of sunlight, valve 16 and adjusting valve door 17 are closed, and device 15 is closed, when system normally moves, be heated water, in heat collector, absorb heat successively by the vacuum tube 8 of one group of series connection, be heated to form 95 ℃ hot water, enter water-storing tank 2.Heat collector 1 tube bank quantity is decided according to the design electromotive power output of generator set, and valve 13 is often opened, and valve 14 often is in closed condition.Under the more weak situation of cloudy sunlight, when the water of the vacuum tube collector 1 of flowing through did not reach 95 ℃, valve 14 was opened, after the hot water that does not reach assigned temperature and the cold water mix that loops back, be heated once more in the feeding solar water afterburning heating equipment 15, reach assigned temperature.This process is controlled by the thermometric regulator.The circulation power in thermal source one loop all comes from circulating water pump 4, and circulating water pump 4 provides necessary pressure head to overcome at heat collector 1, heat exchanger 3, valve and ducted crushing.
Under winter of night and sunlight deficiency or continuous rainy weather situation, valve 16 and valve 17 are opened, and heat not enough in the thermal source loop is just provided by solar water afterburning heating equipment 15, thermal source circulation continuation normal operation.
Fig. 5 is the structural representation of the utility model condensation unit.
See also Fig. 5, the utility model condensation unit comprises condenser 22, top in condenser 22 is provided with spray equipment 25, the condensation side outlet of condenser 22 connects cooling tower 26, and the outlet of cooling tower 26 connects the condensation side import of condenser 22 successively behind the 3rd circulating water pump 27 and the 3rd throttle valve 28.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.

Claims (5)

1. solar-powered water heating and heat-electricity converting device, comprise water-storing tank (2), heat exchanger (3), turbine engine (5) and condensate fractionation unit, it is characterized in that, described device comprises at least one vacuum tube collector (1) of connecting/being connected in parallel, the water outlet of described vacuum tube collector (1) connects the water intake of water-storing tank (2), the water outlet of described water-storing tank (2) connects the hot side-entrance of heat exchanger (3), the hot side outlet of described heat exchanger (3) connects the water intake of vacuum tube collector (1) by first circulating water pump (4), the cold side of described heat exchanger (3) connects turbine engine (5) and condensate fractionation unit respectively by Kalina circulation secondary circuit, and described turbine engine (5) is connected with generator (7) by gearbox (6).
2. solar-powered water heating and heat-electricity converting device as claimed in claim 1, it is characterized in that, described vacuum tube collector (1) comprises at least one vacuum tube (8), described vacuum tube (8) is fixing by outside supporting structure (11), scribble coating for selective absorption on the tube wall in vacuum tube (8), in vacuum tube (8), be provided with level/vertical fin of placing of a slice at least (9), the U-shaped pipe (10) that is provided with middle heat transfer medium in the pipe passes fin (9) and is located in the vacuum tube (8), the two ends of U-shaped pipe (10) are located at outside the vacuum tube (8), and the end of adjacent two U-shaped pipes (10) interconnects.
3. solar-powered water heating and heat-electricity converting device as claimed in claim 1, it is characterized in that, described device also comprises thermometric regulator (12) and solar water afterburning heating equipment (15), the input end of described thermometric regulator (12) is connected with the water outlet of vacuum tube collector (1), output terminal divides two-way to connect described water-storing tank (2), wherein, the one tunnel directly connects water-storing tank (2), and first valve (13) of leading up in addition connects water-storing tank (2); Described solar water afterburning heating equipment (15) is arranged between the outlet of described water-storing tank (2) and described first circulating water pump (4), between solar water afterburning heating equipment (15) and water-storing tank (2), be connected with second valve (16), between the outlet of solar water afterburning heating equipment (15) and first circulating water pump (4), be connected with the 3rd valve (17), the outlet of first circulating water pump (4) connects the water intake of described vacuum tube collector (1) by mixer (18), and mixer (18) connects thermometric regulator (12) by the 4th valve (14).
4. solar-powered water heating and heat-electricity converting device as claimed in claim 1, it is characterized in that, described Kalina circulation secondary circuit comprises regenerator (19), the cold side outlet end of described regenerator (19) connects the import that the back is connected vapor-liquid separator (20) altogether with the cold side outlet end of heat exchanger (3), the vapor outlet end of described separator (20) and liquid outlet end connect the hot side-entrance end of first throttle valve (21) and regenerator (19) respectively, described first throttle valve (21) connects described turbine engine (5), what the steam (vapor) outlet end of described turbine engine (5) and the hot side outlet end of regenerator (19) connected altogether that the back is connected condenser (22) treats the condensation side import, the condensation side outlet for the treatment of of described condenser (22) connects second circulating water pump (23) and second throttle valve (24) successively, and described second throttle valve (24) connects the cold side import of heat exchanger (3) and regenerator (19) simultaneously.
5. solar-powered water heating and heat-electricity converting device as claimed in claim 1, it is characterized in that, described condensate fractionation unit comprises condenser (22), top in condenser (22) is provided with spraying device (25), the condensation side outlet of described condenser (22) connects cooling tower (26), and the outlet of described cooling tower (26) is the 3rd circulating water pump (27) and the back condensation side import that connects condenser (22) of the 3rd throttle valve (28) successively.
CN2010202925131U 2010-08-16 2010-08-16 Solar water heating thermoelectricity conversion device Expired - Lifetime CN201705598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202925131U CN201705598U (en) 2010-08-16 2010-08-16 Solar water heating thermoelectricity conversion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202925131U CN201705598U (en) 2010-08-16 2010-08-16 Solar water heating thermoelectricity conversion device

Publications (1)

Publication Number Publication Date
CN201705598U true CN201705598U (en) 2011-01-12

Family

ID=43442754

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202925131U Expired - Lifetime CN201705598U (en) 2010-08-16 2010-08-16 Solar water heating thermoelectricity conversion device

Country Status (1)

Country Link
CN (1) CN201705598U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893327A (en) * 2010-08-16 2010-11-24 上海盛合新能源科技有限公司 Solar-powered water heating and heat-electricity converting device
CN102261644A (en) * 2011-05-30 2011-11-30 苏州市宏达集团有限公司 Solar energy collection system and power plant system embedded device
CN110173902A (en) * 2019-04-30 2019-08-27 云南大学 A kind of cogeneration system of combination vacuum tube and flat-plate solar collector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893327A (en) * 2010-08-16 2010-11-24 上海盛合新能源科技有限公司 Solar-powered water heating and heat-electricity converting device
CN102261644A (en) * 2011-05-30 2011-11-30 苏州市宏达集团有限公司 Solar energy collection system and power plant system embedded device
CN110173902A (en) * 2019-04-30 2019-08-27 云南大学 A kind of cogeneration system of combination vacuum tube and flat-plate solar collector

Similar Documents

Publication Publication Date Title
CN101893327B (en) Solar-powered water heating and heat-electricity converting device
CN101915225B (en) Solar ammonia water thermoelectric conversion system
CN101539123B (en) Groove-tower combined two-stage heat-storage solar-heat power generation system
CN101392736B (en) Solar low-temperature thermal power generation and cold- thermal co-feeding system
KR101172578B1 (en) Solar collector type of condensing solar light
CN106014891B (en) A kind of groove type solar association circulating power generation system
CN101614196B (en) Inner thermal storage solar low-temperature thermal power generation system
CN201259343Y (en) Multi-surface compound wire focusing groove type solar medium and high temperature heat collection and heat storage system
CN102661259B (en) Integrated solar thermal power generation system
CN106225541A (en) The tower solar-thermal generating system of the many heat collectors of single column formula
CN101907075A (en) Multistage coupling heat accumulating type solar heat-power cogeneration system
CN201827032U (en) Solar ammonia water thermoelectric conversion device
CN105065217A (en) Solar thermal power generation system and method applicable to hot and dry regions
CN102635462B (en) Heat storage temperature control device of solar disc-type Sterling engine
CN201705598U (en) Solar water heating thermoelectricity conversion device
CN203348019U (en) System improving complex conversion efficiency of heat and electricity between terrestrial heat energy and solar energy
CN107084102A (en) It is a kind of using carbon dioxide as heat accumulation and do work working medium groove type solar solar-thermal generating system
CN202560494U (en) Integrated solar thermal power generating system
CN203348020U (en) Geothermal power generation system adopting photo-thermal secondary evaporation
CN204961183U (en) Solar thermal power generation system suitable for hot arid area
CN209586603U (en) The tower slot of three pot type fused salt heat accumulations couples solar-thermal generating system
CN103306912A (en) System for improving geothermal energy and solar energy integrated thermoelectric conversion efficiency
CN203308662U (en) Geothermal energy and solar energy combined ammonia water thermoelectric conversion system
CN208578679U (en) A kind of improvement Bretton solar-thermal generating system based on tower heliostat
CN202709496U (en) High-efficiency solar energy thermoelectric cooling combination technology integrated device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20110112

Effective date of abandoning: 20120509