Background technology
Along with the gradually shortage of Fossil fuel, renewable energy power generation commercially to occupy ratio the most increasing, and
Solar energy resources is that in all regenerative resources, reserves are maximum, and the installed capacity of solar electrical energy generation increases the most year by year.
Each system of tower type solar photo-thermal power station US4407269, US5417052, US7685820,
US6701711、US8365529、US6957536、CN101240947A、CN103485990A、US2008/0000231、
The patent of US20120132193 and CN202754320U describes in detail.Each equipment of indirect air cooling assembly and tower structure are
US3300942, US4148850, US3945106, US5480594 A, US20140373466 patent describes in detail.
Tower sunlight heat power generation station is to be put in place by the energy reflection of sunlight by being arranged in the settled date reflecting mirror on ground
On tower top heat extractor, heat extractor is installed on the tower height top more than 100 meters, is received by solar thermal energy by heat absorption/heat-conducting medium
Collect and be used in electricity generation system.
Existing as it is shown in figure 1, fused salt tower type solar photo-thermal power station is mainly made up of following system: heliostat field,
The double tank heat reservoir of fused salt heat extractor, cold heat, steam generator module, Turbo-generator Set and cooling system.The heat conduction in power station
Medium is nitrate, and composition is 40%KNO3And 60%NaNO3.This salt-mixture about 220 ° of C of melting point, storage in cold heat tank fused salt
Temperature be respectively 290 ° of C and 565 ° of C.When power station is run, heliostat will follow the tracks of the sun by anti-for the sunlight inciding its surface
Be mapped to be positioned at the fused salt heat extractor of tower top, be arranged on heat exchanger steel structure platform the first circulating pump will from cold tank 290 ° of C
Fused salt pump on heat extractor, absorb heliostat field reflection come energy.Fused salt temperature after heat absorption is heated to 565 ° of C,
Power of relying on for support declines pipeline by hot melt salt and returns in hot tank.Storage fused salt in hot tank is pumped into by steam generator module circulating pump
Steam generator module heat exchange, produces high pressure superheated steam and drives Turbo-generator Set to generate electricity, and the fused salt after heat exchange will flow back to
In cold tank, carry out next circulation.
Generally solar energy thermal power station is built in the high Gobi desert of solar energy direct solar radiation value or desert area, these areas
Water resource lacks very much, and therefore the cooling system at solar thermal power generation station is all to use Direct Air-Cooled assembly.The occupation of land of air cooling system
Area is little, it is simple to be arranged on the region, generating island at heliostat field center.
Utility model content
The purpose of this utility model is to provide a kind of efficient reduction fused salt tower type solar photo-thermal power station station service
System, improves the annual electricity generating capacity in power station, reduces cost of electricity-generating.
For achieving the above object, this utility model is by the following technical solutions:
The system of a kind of efficient reduction fused salt tower type solar photo-thermal power station station service, described system includes heliostat
Field, infrared emanation instrument detection components, cold tank, the first circulating pump, fused salt increase in pipeline, fused salt inlet container, fused salt heat extractor,
Thermal protection, fused salt exit vessel, fused salt decline pipeline, hot tank, the second circulating pump, steam generator module, turbine generator assembly,
Indirect air cooling assembly, cold tank fused salt pipeline, heat absorption tower, main control room, change water assembly, described indirect air cooling assembly is arranged at described
Heliostat field center, described infrared emanation instrument detection components is arranged in described heliostat field, and described heat absorption tower is arranged at institute
Stating in indirect air cooling assembly, described fused salt heat extractor is arranged at described heat absorption top of tower, and described fused salt heat extractor two ends are equipped with
Thermal protection, described first circulating pump is connected with described cold tank, and fused salt increase in pipeline and institute are passed through in described fused salt inlet container one end
Stating the first circulating pump to connect, the described fused salt inlet container other end is connected with described fused salt heat extractor one end by pipeline, described
The fused salt heat extractor other end is connected with described fused salt exit vessel one end, and the described fused salt exit vessel other end passes through described fused salt
Declining pipeline to be connected with described hot tank, described hot tank is connected with described steam generator module circulating pump, described steam generator
Assembly circulating pump, indirect air cooling assembly, turbine generator assembly are connected with stating steam generation assembly by pipeline, described steam generation
Assembly is connected with described cold tank by cold tank fused salt pipeline.
Further, described indirect air cooling assembly includes: air cooling tower, heat exchanger, and described heat exchanger is arranged at air cooling tower ring
On the independent platform of Liang Chu, described heat absorption tower is arranged in described air cooling tower.
Further, described indirect air cooling assembly includes: air cooling tower, heat exchanger, and described heat exchanger is arranged at air cooling tower ring
On the independent platform of Liang Chu, described heat absorption tower, cold tank, hot tank and steam generation assembly may be contained within the end in described air cooling tower
Portion.
Further, described air cooling tower includes: concrete towers, steel structure tower, cable wire tower or the tower of other patterns.
Further, described heat absorption tower height degree is higher than described air cooling tower.
Further, described steam generation assembly includes one or more groups preheater, vaporizer, drum, superheater and again
Hot device, described steam generator module circulating pump is connected with described reheater and superheater one end respectively, described reheater and mistake
This end of hot device is all connected with described vaporizer one end, and described reheater and the superheater other end are all with described turbine generator assembly even
Connecing, described drum is connected with described vaporizer and superheater respectively, and described vaporizer two ends are corresponding with described preheater the most respectively
End connect, described turbine generator assembly is connected with the described reheater other end, heat exchanger one end the most respectively, described heat exchanger another
End is connected with described preheater one end, and the described preheater other end is connected with described cold tank by cold tank fused salt pipeline.
Further, described heliostat field is made up of multiple stage heliostat, every heliostat with double-axle rotation by the energy of the sun
Amount reflexes to fused salt heat extractor, and described heliostat field respectively arranges one group of infrared emanation instrument detection components at four direction.
Further, described main control room is connected with each parts by circuit, describedization water assembly and efficiently reduce fused salt
In the system of tower type solar photo-thermal power station station service, any pipeline connects.Described for tower type solar photo-thermal power station
Direct Air-Cooled assembly, uses indirect air cooling assembly to replace, and compared with Direct Air-Cooled assembly, this utility model can be provided with effect fall
Low power station station service, improves the generated energy in power station.Compared with water-cooling system, this utility model can effectively reduce power station cooling and use
Water.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is explained in further detail this utility model.Should be appreciated that specific embodiment described herein is used only for explaining
This utility model, is not used to limit this utility model.
On the contrary, this utility model contain any be defined by the claims do in spirit and scope of the present utility model
Replacement, amendment, equivalent method and scheme.Further, in order to make the public that this utility model to be had a better understanding, the most right
During details of the present utility model describes, detailed describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand this utility model completely.
[embodiment 1] as in Figure 2-4, a kind of efficient reduction fused salt tower type solar photo-thermal power station station service be
System, including: heliostat field 1, infrared emanation instrument detection components 102, cold tank the 2, first circulating pump 3, fused salt increase in pipeline 4, molten
Salt inlet container 5, fused salt heat extractor 6, thermal protection 7, fused salt exit vessel 8, fused salt decline pipeline 9, hot tank the 10, second circulating pump
11, steam generation assembly 12, turbine generator assembly 13, indirect air cooling assembly 14, cold tank fused salt pipeline 15, heat absorption tower 16, master control
Room 17 processed, change water assembly 18.
Described indirect air cooling assembly 14 is arranged at described heliostat field 1 center, described infrared emanation instrument detection components 102
Being arranged in described heliostat field 1, described heat absorption tower 16 is arranged in described indirect air cooling assembly 14, described fused salt heat extractor 6
Being arranged at described heat absorption tower 16 top, described fused salt heat extractor 6 two ends are equipped with thermal protection 7, and described first circulating pump 3 is with described
Cold tank 2 connects, and described fused salt inlet container 5 one end is connected with described first circulating pump 3 by fused salt increase in pipeline 4, described molten
Salt inlet container 5 other end is connected with described fused salt heat extractor 6 one end by pipeline, described fused salt heat extractor 6 other end and institute
Stating fused salt exit vessel 8 one end to connect, described fused salt exit vessel 8 other end declines pipeline 9 and described heat by described fused salt
Tank 10 connects, and described hot tank 10 is connected with described steam generator module circulating pump 11, described steam generator module circulating pump
11, indirect air cooling assembly 14, turbine generator assembly 13 are connected with stating steam generation assembly 12 by pipeline, described steam generation group
Part 12 is connected with described cold tank 2 by cold tank fused salt pipeline 15, and described main control room 17 is connected with each parts, remotely by circuit
Controlling, describedization water assembly 18 and any pipeline of system efficiently reducing fused salt tower type solar photo-thermal power station station service connect
Connect, water is carried out sofening treatment.
Described indirect air cooling assembly 14 includes: air cooling tower 141, heat exchanger (tube bank) 142 and detection control assembly, described
Air cooling tower 141 includes: concrete towers, steel structure tower, cable wire tower or the tower of other patterns, and described heat exchanger 142 is arranged at air cooling
On independent platform at tower 141 ring beam, described indirect air cooling assembly 14 can also be direct-contact type condenser indirect air cooling assembly (sea
Le formula indirect air cooling assembly) and surface be condenser indirect air cooling assembly (Harmon formula indirect air cooling assembly), and other (condensers
It is directly connected in steam turbine aerofluxus).Described heat absorption tower 16 is arranged in described air cooling tower 141, can be arranged concentrically with one heart or not, described
Heat absorption tower 16 height is higher than described air cooling tower 141, and described heat absorption tower 16 can be as the load bearing support post of air cooling tower 141.
Described steam generation assembly 12 includes one or more groups preheater 121, vaporizer 122, drum 123, superheater 124
With reheater 125, described steam generator module circulating pump 11 is connected with described reheater 125 and superheater 124 one end respectively,
Described reheater 125 and this end of superheater 124 are all connected with described vaporizer 122 one end, described reheater 125 and superheater
124 other ends are all connected with described turbine generator assembly 13, described drum 123 respectively with described vaporizer 122 and superheater 124
Connecting, described vaporizer 122 two ends are connected with described preheater 121 corresponding end the most respectively, and described turbine generator assembly 13 also divides
It is not connected with described reheater 125 other end, heat exchanger (tube bank) 142 one end, described heat exchanger (tube bank) 142 other end and institute
Stating preheater 121 one end to connect, described preheater 121 other end is connected with described cold tank 2 by cold tank fused salt pipeline 15.
Described steam generator 122 can be shell-and-tube heat exchanger or axe formula heat exchanger.
Described heliostat field 1 is made up of multiple stage heliostat 101, every heliostat 101 can double-axle rotation by the sun
Energy reflection is to fused salt heat extractor 6, and described heliostat 101, by reflecting mirror, steel structure support, pillar, controller and double-axle rotation
Driving means composition, the double-axle rotation driving means of described heliostat 101 includes reduction box, electric pushrod and hydraulic push rod,
Described heliostat field 1 respectively arranges one group of infrared emanation instrument detection components 102 4 directions (four corners of the world), in heat extractor system
When system startup or variable working condition, monitoring heat extractor surface temperature is in scope of design constantly, it is ensured that the safety of heat absorber system.
First circulating pump 3 and the second circulating pump 11, all uses long-shaft pump, and the steel construction being installed on steam generation assembly 12 is put down
On platform.
Each heliostat of heliostat field 1 is by reflexing to be positioned at high tower 16 tower by the sunlight in per moment around dual-axis rotation
Top heat extractor 6, the first circulating pump 3 by the fused salt in cold tank 2 by increase in pipeline 4 pump to heat extractor inlet tank 5, then melt
The fused salt of salt inlet tank 5 flows through whole fused salt heat extractor 6, and it is 565 ° of C that temperature is heated to design temperature by 290 ° of C, is stored up
It is stored to fused salt exit vessel 8.High-temperature molten salt in fused salt exit vessel 8 is relied on power for support and is flow back into heat by hot melt salt decline pipeline 9
In tank, flow down the gravitional force of high-temperature molten salt to the impact of fused salt in tank in order to reduce from tower top, pipeline 9 end need to declined
Blood pressure lowering nozzle or damping device, and then the safety of protection tank body are installed.High-temperature molten salt in hot tank is followed by steam generator module
Ring pump 11 pump carries out heat exchange to steam generation assembly 12, produces high pressure superheated steam and drives turbine generator assembly 13 to generate electricity;Heat
After exchange, the temperature of fused salt will be flow back in cold tank 2 to 290 ° of C by cold tank fused salt pipeline 15, carry out subsequent cycle.
The described Direct Air-Cooled assembly for tower type solar photo-thermal power station, uses indirect air cooling assembly to replace, and directly
Connecing air cooling assembly to compare, this utility model can be provided with effect and reduces power station station service, improves the generated energy in power station.With water-cooled system
System is compared, and this utility model can effectively reduce power station cooling water.
System, in the case of not changing the body design scheme of system, is rearranged by this embodiment.It is vented to from steam turbine
Traditional water-cooled assembly or Direct Air-Cooled assembly, replace to indirect air cooling assembly 14.Owing to indirect dry cooling tower engaged position is big, for
Reducing the indirect cool tower impact on mirror field efficiency, indirect cool tower 141 is together built in generating island by this utility model with heat absorption tower 16
The heart, heat absorption tower 16 is built in inside air cooling tower 141.Fig. 3 assembly of the present utility model layout drawing (generating island), cold tank 2, hot tank 10,
The assemblies such as steam generation assembly 12, turbine generator assembly 13, main control component 17, change water assembly 18 all will be built at sky with Factory Building
The outside of cold tower 141.Steam generation assembly 12 will be arranged in cold tank 2 and hot tank 10 zone line, determine according to component size
Installation site.Turbine generator assembly 13 near cold assembly 14, will reduce headloss between being disposed adjacent to.
[embodiment two] as seen in figs. 5-6, the present embodiment is essentially identical with above-described embodiment, is not repeating at this, different
Part is, described heat absorption tower 16, cold tank 2, hot tank 10 may be contained within the end in described air cooling tower 141 with steam generation assembly 12
Portion, described fused salt increase in pipeline 4 and described fused salt decline pipeline 9 and be arranged in parallel with described heat absorption tower 16.
The present embodiment hollow cooler restrains 142 verticals below tower or on the steel platform that is arranged horizontally in tower.
Restraining the most sufficiently high, solidifying water can be with automatic hydrophobic.Cold tank 2, hot tank 10 and heat exchanger assembly 12 all will be arranged in air cooling tower 141
Inside.Turbo-generator Set 13 is arranged in outside air cooling tower 141, and is in certain altitude.Turbine generator assembly 13 will be arranged
Between close near cold assembly 14, effectively reduce headloss.The utility model of Fig. 5 and the difference of Fig. 2 resides in reduced sea
Water circulating pump cold between Le formula, i.e. decreases certain station service.
For more reduction station services, the present embodiment uses the air cooling tubes condenser that steam turbine aerofluxus is directly discharged in cooling tower,
Air cooler tube bundle vertical is below tower or on the steel platform that is arranged horizontally in tower.Restraining the most sufficiently high, solidifying water can
With automatic hydrophobic.Air is heated through tube bank, and after air themperature raises, density reduces, and therefore tower is inside and outside due to the density of air
Difference forms pressure reduction, and the air cooler making the air that ambient temperature is low constantly enter in tower carries out heat exchange with steam, makes steam obtain
To condensation, maintain the exhaust back pressure of steam turbine.During it addition, heat absorber system declared working condition is run, heat extractor surface temperature exceedes
600 degrees Celsius, such as same high temperature heat source, the cross-ventilation near heat extractor can be accelerated, be effectively improved the air of indirect cool tower
To flow.From the forgoing descriptions, it can be shown that the cold end of whole power station Steam Power Circulation does not use the high-power power consumptions such as blower fan water pump
Equipment.The cold end of traditional tower fused salt power station steam turbine uses Direct Air-Cooled or water-cooled to mix indirect air cooling with Direct Air-Cooled
Form.Especially Direct Air-Cooled, its blower fan power consumption accounts for the 1% ~ 3% of whole power station.And Direct Air-Cooled mixes with water-cooled air cooling
Pattern, not only needs blower fan and water circulating pump, and needs substantial amounts of cooling water when using water-cooling system, be not suitable for being arranged on
The desert of hydropenia or Gobi desert area.For indirect air cooling, owing to cooling water circulates in systems, water circulating pump electricity consumption Ye Zhan factory
Electricity consumption quite a few.