CN207922603U - Particle heat sink and its heat collector - Google Patents
Particle heat sink and its heat collector Download PDFInfo
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- CN207922603U CN207922603U CN201820087443.2U CN201820087443U CN207922603U CN 207922603 U CN207922603 U CN 207922603U CN 201820087443 U CN201820087443 U CN 201820087443U CN 207922603 U CN207922603 U CN 207922603U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model belongs to heat absorption and heat-storage technology field, specifically provides a kind of particle heat sink and its heat collector for photo-thermal power generation.The utility model aims to solve the problem that the relatively low and not exclusively controllable problem of the endothermic temperature of existing heat sink.For this purpose, the particle heat sink of the utility model can convert solar energy into thermal energy storage by absorbing grains, and the particle heat sink includes the feeder, pharoid and accumulator to communicate with each other；Wherein, the feeder is for launching absorbing grains to be heated；The pharoid can heat absorbing grains to be heated using solar radiation；The accumulator is used to store the absorbing grains after heating.Further, in the technology preferred embodiment of the utility model, the particle heat sink further includes pan feeding gate valve, rate of discharge controller, blanking mixer, column plate particle flow field regulation structure, temperature detector and temperature feedback arrangement, light inlet and light barrier etc..
Description
Technical field
The utility model belongs to heat absorption and heat-storage technology field, specifically provides a kind of particle heat absorption dress for photo-thermal power generation
It sets.
Background technology
With science and technology be constantly progressive and the continuous consumption of earth resource, people start to be keen to study it is various can
The utilization method of regenerated resources.It is estimated that the solar radiant energy for reaching earth surface every year is 5.57*1018MJ is equivalent to 1.9*
1014Ton standard coal, the 1.56*10 of about global primary energy total quantity consumed4Times.China's top can receive too every year
Positive radiation energy is about the 1% of global solar radiant energy, is 680 times of the current year total energy consumption in China.In consideration of it, solar energy conduct
Most abundant neutral carbon regenerative resource on the earth is all the research emphasis of renewable energy utilization technology all the time.Currently,
Solar power generation includes mainly solar energy power generating and solar light-heat power-generation, wherein there are many for solar energy power generating
Disadvantage；For example, photovoltaic battery panel can cause environmental pollution in the fabrication process, electric energy storage is difficult and is difficult to peak regulation, meanwhile,
Photovoltaic battery panel can be only generated direct current etc..In comparison, the solar light-heat power-generation then more environmentally friendly, energy storage with production process
More convenient, the advantages that being more widely applied, therefore, solar light-heat power-generation, have become global new energy development in recent years
Newly emerging force, and also shown huge development potentiality in following energy development road.
Specifically, solar light-heat power-generation refers to converting the solar energy of collection to thermal energy and the technology for generating electricity.
During photo-thermal power generation, particle can be used as the heat-absorbing medium of heat sink.Further, using particle as heat absorption
The heat-absorbing medium of device has following advantage：The first, the solid particle in heat sink can directly receive solar radiant energy, and
And convert the solar radiant energy received to thermal energy storage, to be omitted completely intermediate heat transfer process, and then effectively improve heat
Efficiency；The second, solid particle has good high temperature resistance, for when solid particle is bauxite ceramsite sand, bauxite
Ceramsite sand can be resistant to 1500 DEG C of high temperature, such high temperature resistance considerably beyond nitric acid fuse salt 600 DEG C of heat-resisting upper limits,
And according to the principle of Carnot cycle it is found that the temperature of high temperature heat source is higher, then the efficiency of system is also higher；Third, solid
Grain can not only be directly as heat-absorbing medium, while can also be directly as heat-storage medium, so that solid particle can be straight
It connects in the heat absorption heat accumulation module for being coupled to solar-thermal generating system, to effectively avoid secondary heat exchange, and then dramatically improves
The thermal efficiency of system, simplifies system heat exchange process；4th, the solid particle with high temperature is used not only for generating electricity, together
When, it is alternatively arranged as that high temperature heat source applies to chemical reforming technique or other need the technology of high temperature heat source, has wide range of applications；
5th, the problem of solid particle be easy to cause partial high pressure there is no localized hyperthermia possessed by fluid so that the safety of system
Performance obtains the raising of high degree.
Currently, relatively common particle heat sink type has curtain-type particle heat absorber, hinders streaming particle in the world
Heat dump, centrifugal pellet heat dump, fluidized bed type particle heat absorber etc., wherein more to the research of curtain-type particle heat absorber
Extensively, structure and principle are also more classical, and still, curtain-type particle heat absorber is directly solid to the tenesmus formed due to gravity
Body particle stream is heated, and the particle fluid layer formed in this way is not fine and close enough, meanwhile, the flow velocity of solid particle is very fast and not exclusively may be used
Control.Therefore, curtain-type particle heat absorber has high requirement to the intensity of solar radiation, when the intensity of solar radiation is not achieved
When predetermined value, predetermined temperature heat absorption is also just not achieved in the one way heating of solid particle.
Correspondingly, this field needs a kind of new solve the above problems for the particle heat sink of photo-thermal power generation.
Utility model content
In order to solve the above problem in the prior art, the endothermic temperature in order to solve existing heat sink is relatively low and not
Fully controllable problem, the utility model provide a kind of particle heat sink for photo-thermal power generation, the particle heat absorption dress
The heating of absorbing grains can be realized in simple structure by setting, and easily controllable endothermic temperature, turn solar energy to realize
Turn to the thermal energy storage of high temperature level.The particle heat sink of the utility model includes the feeder to communicate with each other, radiant heating
Device and accumulator；Wherein, the feeder is for launching absorbing grains to be heated；The pharoid can utilize the sun
Absorbing grains to be heated are heated in light radiation；The accumulator is used to store the absorbing grains after heating.
In the optimal technical scheme of the utility model, the feeder is used to launch absorbing grains to be heated, and
The feeder has the function of of short duration storage to absorbing grains, so that absorbing grains can orderly be entered by the feeder
The pharoid；Meanwhile solar radiation can expose on the pharoid, to flowing through the radiant heating
The absorbing grains of device are effectively heated, and then convert solar energy into the thermal energy being stored in absorbing grains；Further, institute
Stating accumulator can store through the absorbing grains after heat by solar radiation, to carry out heat supply as heat source needed for subsequent power generation.
The radiant heating face with pre-determined tilt angle is provided on the pharoid；Absorbing grains can be described
By heat by solar radiation on radiant heating face, and slide into the accumulator.
It in the present invention, can be according to the angle of inclination in radiant heating face described in actual use demand sets itself；
On the one hand, absorbing grains can be realized by inclined radiant heating face and be flowed so that the particle heat sink is without setting
The flowing that absorbing grains can be realized in the case of setting driver, to save production cost and manufacturing cost in high degree
Simultaneously, additionally it is possible to effectively improve the high temperature resistance of the particle heat sink；It on the other hand, can also be by adjusting the spoke
The angle of inclination for penetrating heating surface effectively adjusts particle flow layer thickness and absorbing grains in the delay in the radiant heating face
Between, so that can be carried out from the absorbing grains put into the feeder by solar radiation on the radiant heating face
Fully heating.
In the optimal technical scheme of the utility model, the particle heat sink further include setting the feeder with
Pan feeding gate valve between the pharoid；The pan feeding gate valve can be matched with inclined radiant heating face, and control is logical
Cross the thickness and grain flux of the absorbing grains fluid layer that the feeder is flow on the pharoid.
Because being provided with pan feeding gate valve, can be changed from described in feeder entrance by adjusting the pan feeding gate valve
The thickness of the absorbing grains layer in radiant heating face, so as to the particle heat sink can according to the solar radiation of varying strength come
The thickness for effectively adjusting absorbing grains layer, so that the suction after being heated by solar radiation on the radiant heating face
Hot particle temperature is more uniform.In other words, it can suitably increase the thickness of absorbing grains layer when solar radiation is stronger, and sun spoke
The thickness of absorbing grains layer can be suitably reduced when penetrating weaker.
In the optimal technical scheme of the utility model, the particle heat sink further includes being arranged in the radiant heating
Rate of discharge controller between device and the accumulator；The rate of discharge controller passes through the radiant heating for controlling
Absorbing grains after device heating flow into the flow when accumulator.
The rate of discharge controller includes pneumatic control valve, wind turbine and flow regulator, wherein pneumatic control valve
Air inlet is connected with flow regulator, and flow regulator is connected with wind turbine.In the particle heat sink of the utility model, institute
It states the absorbing grains after pharoid heating and falls under gravity into pneumatic control valve, pneumatic control valve can make air
For the fluidized gas of absorbing grains, so that the particle heat sink can be pneumatic effectively to control by controlling flow regulator
The fluidisation degree of absorbing grains in regulating valve, to which effectively control passes through the heat absorption in pneumatic control valve inflow storing surge tank
The flow of particle, so that the particle heat sink can exist according to the solar radiation of varying strength effectively to adjust absorbing grains
Flow velocity and flow on the radiant heating face, so that absorbing grains can remain preset heating temperature.At this point, institute
Stating pan feeding gate valve only has opening and closing two states, and under closed state, absorbing grains will not enter radiation from feeder and add
Hot device, under open state, pan feeding gate valve, which passes through, controls opening size, controls the thickness of absorbing grains layer.At this point, the radiation adds
The angle of inclination in hot face only has the function of controlling absorbing grains layer thickness.
In the optimal technical scheme of the utility model, the particle heat sink further includes being arranged in the radiant heating
Blanking mixer between device and the rate of discharge controller；The blanking mixer is for making the absorbing grains after heating fill
Divide mixing.
The blanking mixer can be funnel type, referred to as blanking funnel, and for collecting absorbing grains, the radiation adds
Absorbing grains on hot device flow under the influence of gravity into the blanking funnel, due to being funnel that outlet at bottom gradually narrows
Type is easy to carry out absorbing grains using the outlet of blanking funnel whole so when absorbing grains are flowed out from the bottom of blanking funnel
Stream and the flow for reducing absorbing grains.Meanwhile absorbing grains and the contact area of air are also effectively reduced, thermal losses is reduced, from
And ensure the temperature of absorbing grains.
During absorbing grains are flowed from feeder to accumulator, flow path constitutes the mainstream of absorbing grains
Road, and when the absorbing grains in sprue flow through radiant heating face, the journey of raying in the tangential direction of flow direction
Degree is not fully identical, therefore, will occur temperature gradient in the tangential direction.In the optimal technical scheme of the utility model
In, the particle heat sink further includes the particle flow field regulation structure being arranged in the blanking internal mixer；The particle
Flow field regulation structure is used to adjust flow field velocity distribution of the particle on the radiant heating face.It in sprue, will flow through institute
The part for stating radiant heating face is divided into several branch flow passages, and by particle flow field regulation structure to absorbing heat described in every branch flow passage
The flow velocity of particle is independently controlled, and is adjusted in real time with the different incident radiation distribution situations of correspondence.
In the optimal technical scheme of the utility model, the particle flow field regulation structure include drainage plate, bumper post and
Branch flow passage flow control portion；The drainage plate is made of multigroup plate-shaped member, and the plate-shaped member corresponds to going out for particle flow field
Mouth is arranged to form multiple branch flow passages；The position that angle is mutually formed in two pieces of plate-shaped members is arranged in the bumper post；Institute
It is movable member to state at least partly plate-shaped member of drainage plate and/or the bumper post, and activity is by the branch flow passage flow control
Portion processed is adjusted.
Drainage plate includes multigroup drainage plate being set in the blanking mixer in corresponding sprue, by multigroup plate-like portion
Part is constituted, and several branch flow passages are formed for draining the absorbing grains.The drainage plate can effectively guide the stream of absorbing grains
To, exit flow velocity is the branch flow passage flow velocity, therefore can by drainage plate for absorbing grains on pharoid
VELOCITY DISTRIBUTION effectively adjusted, to effectively improve the uniform of each absorbing grains temperature on radiant heating panel horizontal direction
Property.
Further, in this optimal technical scheme of the utility model, at least one set of drainage plate includes being used for institute
The branch flow passage entrance of absorbing grains inflow, the branch flow passage outlet of outflow are stated, the cross-sectional area of the branch flow passage entrance is more than described
Branch flow passage exports, and forms funnel shaped drainage channel.The set-up mode of the cross-sectional area of the gradual change type be intended to absorbing grains into
Row rectification and the flow for reducing absorbing grains, while absorbing grains and the contact area of air are effectively reduced, thermal losses is reduced, from
And ensure the temperature of absorbing grains.Therefore, which should be understood as the summation of all entrances or exit cross-sectional area.This
Outside, any by transformation geometry relationship, change entrance or exit cross-sectional area, to reduce the implementation of absorbing grains falling speed
Mode should be understood as including being within the protection scope of the utility model.
In the present invention, the component part as particle flow field regulation structure, particle heat sink can also carry
Bumper post, the falling speed for slowing down the absorbing grains, the bumper post are set to the position that plate-shaped member forms mutually angle
It sets, i.e., is arranged close to branch flow passage exit, but still there are certain interval between drainage plate, interstitial site is logical for absorbing grains
It crosses.
In the present invention, main the adjusting by the sectional dimension in branch flow passage exit of adjusting of branch flow passage flow
To complete.The adjusting of the outlet size mainly passes through the change of geometric position between drainage plate or between drainage plate and bumper post
Change and realize, therefore, plate-shaped member or bumper post should be movable in the utility model, so as to pass through branch flow passage flow
Control unit controls its specific action, to realize that independently formed for every group of plate-shaped member or plate-shaped member and bumper post are common
The adjustment of the outlet size of formation.For example, can adjust makes same group with the size of subtended angle or translation between group plate-shaped member
Two boards shape component it is adjacent to each other, for the gap being collectively formed by plate-shaped member and bumper post, drainage plate can also be translated
Or bumper post, both make closer or far from method change gap size, technical staff can also change according to actual demand and grasp
Make method, is not limited to mode listed above.
In the optimal technical scheme of the utility model, it is adjacent it is described buffering intercolumniation the plate-shaped member be it is continuous,
It should not be provided with opening between two adjacent groups plate-shaped member, to prevent absorbing grains from therefrom sliding.Meanwhile continuous plate to prop up
It can be realized for adjacent two branch flow passage flows by the rotation process for single continuous plate in runner flow control portion
Regulation and control.
In the optimal technical scheme of the utility model, the drainage plate in particle flow field regulation device can also be set to
Multigroup plate-shaped member of multilevel hierarchy, the drainage plate includes at least first order plate-shaped member and second level plate-shaped member,
Particle in multigroup first order plate-shaped member can flow into the second level plate-shaped member.In several first order plate-shaped members
Particle second level plate-shaped member can be flowed into directly or after converging, the setting of the multilevel hierarchy will facilitate flow field regulation device to adopt
The accuracy controlling for grain flux is realized with adjustment drainage plate angle or the mode for translating drainage plate.
In the optimal technical scheme of the utility model, the particle heat sink further includes multigroup branch flow passage temperature detection
Device；The branch flow passage temperature detector is for detecting the temperature of absorbing grains in corresponding branch flow passage and passing measuring temperature data
Branch flow passage flow control portion is passed, branch flow passage flow control portion controls corresponding branch according to the real time temperature of absorbing grains
The flow of runner.
In the optimal technical scheme of the utility model, the particle heat sink further includes that temperature detector and temperature are anti-
Present device；The temperature detector is used to detect the temperature of specific position, it is preferable that detects the blanking funnel and the storage
Expect the temperature of the absorbing grains of surge tank, and measurement data is passed in the temperature feedback arrangement, the temperature feedback
Device controls the rate of discharge controller according to the real time temperature of absorbing grains.
In the optimal technical scheme of the utility model, the particle heat sink can according to the temperature detector and
Temperature feedback arrangement effectively adjusts the rate of discharge controller so that the particle heat sink can according to absorbing grains into
Temperature when entering the accumulator effectively adjusts flow velocity of the absorbing grains on the pharoid, so as to absorbing grains energy
It is enough to fully absorb solar radiation on the radiant heating face, to further effectively ensure particle heat absorption described in simultaneously stability contorting
The endothermic temperature of device.In other words, can suitably increase export grain flux when solar radiation is stronger, to increase absorbing grains
Flow velocity on the pharoid, and when solar radiation is weaker, can suitably reduce outlet grain flux, be inhaled to reduce
Flow velocity of the hot particle on the pharoid.
The utility model additionally provides a kind of heat collector based on the above-mentioned particle heat sink for photo-thermal power generation, described
Heat collector further includes light inlet, and the light inlet is used to foucusing solar radiation being transmitted through the pharoid.Preferably, also
Including light barrier, the light barrier is reduced for making foucusing solar radiation expose to the radiation inclined plate to the full extent
The ratio that foucusing solar radiation is escaped by multiple reflections by light inlet.The light inlet and light barrier are used to guide
Foucusing solar radiation enters particle heat sink.
In the utility model optimal technical scheme, the particle heat sink can make foucusing solar radiation with by up to
Lower or horizontal direction is entered by light inlet inside heat collector, and according to the incident direction of foucusing solar radiation and hot spot point
Cloth, by the geometry and the position that adjust the light barrier inside particle heat sink so that foucusing solar radiation is utmostly
On expose on the radiation inclined plate, and reduce foucusing solar radiation by multiple reflections to the ratio escaped by light inlet
Example, to improve the heat absorption efficiency of particle heat sink.
The utility model additionally provides a kind of heat collector with preconditioning function, including with temperature feedback system and
Particle heat sink, light inlet, radiometer and the pre-conditioned module of rate of discharge controller, the light inlet will be for that will focus too
For positive radiation transmission to the pharoid, the radiometer measures radiation intensity suffered by the pharoid in real time, described
Pre-conditioned module can control the rate of discharge controller according to the measurement result of the radiometer.Due to pre-conditioner modules pair
In absorbing grains temperature of the adjustment based on radiation intensity rather than exit of flow, and the change transitions radiated are final particle temperature
The variation of degree usually requires certain time, therefore, the regulation and control of anticipation property should be belonged to for the adjustment of rate of discharge, therefore are referred to as presetting
Control module.The regulation and control of the anticipation module and temperature feedback arrangement for the regulation and control of rate of discharge controller can be simultaneously,
The either selectivity of superposition, in actual mechanical process, irradiation situation and each spot temperature number in real time can be considered
According to situation, specific control methods are obtained.
It will be appreciated to those of skill in the art that in short, in the present invention, the utility model is used for photo-thermal
The particle heat sink of power generation can convert solar energy into thermal energy storage by absorbing grains；Specifically, the particle
Heat sink includes the feeder, pharoid and accumulator to communicate with each other；Wherein, the feeder is to be heated for launching
Absorbing grains；The radiant heating face with pre-determined tilt angle is provided on the pharoid, since the radiation adds
Hot face has pre-determined tilt angle, and therefore, technical staff can be existed by setting different angles of inclination to adjust absorbing grains
Particle flow layer thickness on the radiant heating face；The discharger is used to store the absorbing grains after heating.
In addition, the particle heat sink of the utility model can also include being arranged in the particle flow field of blanking internal mixer
Adjustment structure, the particle flow field regulation structure include drainage plate and bumper post, and drainage plate is correspondingly arranged at the blanking mixer
In interior corresponding sprue, several branch flow passages are formed for draining the absorbing grains.Bumper post is set to the outlet of each branch flow passage
Place, the falling speed for slowing down absorbing grains.There are certain intervals between drainage plate for it, and interstitial site is for absorbing grains
Pass through, is exported as branch flow passage.Therefore it can pass through between the adjusting drainage plate or relative position of drainage plate and bumper post pass
System, to realize that the VELOCITY DISTRIBUTION to absorbing grains on pharoid is effectively adjusted, to effectively improve radiant heating
The uniformity of each absorbing grains temperature on plate horizontal direction.
Description of the drawings
Fig. 1 be the utility model a preferred embodiment in be used for down the particle heat sink of light collecting photo-thermal power generation
Overall structure diagram；
Fig. 2 be the utility model another preferred embodiment in particle heat sink for horizontal light collecting photo-thermal power generation
Overall structure diagram；
Fig. 3 is the schematic elevation view of the blanking funnel of particle heat sink in Fig. 1 embodiments；
Fig. 4 is the schematic cross-sectional view of the blanking funnel of particle heat sink in Fig. 1 embodiments；
Fig. 5 is that on 2 28th, 2017 intensities of illumination of Hangzhou YuQuan school area, ZheJiang University thermal energy institute attic change with time
Curve.
Description of the drawings：1, pan feeding surge tank；2, pan feeding gate valve；3, inclined plate is radiated；4, blanking funnel；5, pneumatic control valve；
6, storing surge tank；7, light inlet；8, wind turbine；9, light barrier；10, temperature detector；11, temperature feedback arrangement；12, flow tune
Regulating device；41, drainage plate；42, bumper post.
Specific implementation mode
Preferred embodiments of the present invention are described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining the technical principle of the utility model, it is not intended that limit the protection of the utility model
Range.Those skilled in the art can as needed adjust it, to adapt to specific application scenario.For example, although
Each component part of particle heat sink described in the specification for photo-thermal power generation all has scheduled shape and structure,
But these component parts are obviously also configured to other shapes and structure, as long as the component part can complete it is pre-
Determine function.The change of this component part shape and structure without departing from the utility model basic principle, therefore all will
It falls within the scope of protection of the utility model.
It should be noted that in the description of the preferred embodiment of the utility model, term "upper", "lower", " left side ",
The direction of the instructions such as " right side ", "front", "rear", "vertical", "horizontal", "inner", "outside" or the term of position relationship are to be based on attached drawing
Shown in direction or position relationship, this is intended merely to facilitate description, rather than indicates or imply described device or component part
It must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection ", " cooperation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be
It is detachably connected, or is integrally connected；It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside component part.To those skilled in the art, above-mentioned term can be understood in this practicality as the case may be
Concrete meaning in novel.
Based on proposed in background technology most commonly seen heat dump is mostly curtain-type particle heat absorber in the world at present, but
It is that curtain-type particle heat absorber is all directly to be heated to the tenesmus solid particle stream formed due to gravity, is formed in this way
Particle fluid layer is not fine and close enough.Meanwhile the flow velocity of solid particle is too fast and not exclusively controllable, and therefore, curtain-type particle heat absorber pair
The intensity of solar radiation has high requirement, when predetermined value is not achieved in the intensity of solar radiation, the one way liter of solid particle
Predetermined temperature is also just not achieved in temperature, is difficult to well be ensured so as to cause the heat absorption efficiency of system.In order to solve the prior art
In the above problem, the utility model provides a kind of particle heat sink for photo-thermal power generation, the particle heat sink
Thermal energy storage can be converted solar energy by absorbing grains；Specifically, the particle heat sink includes connecting each other
Logical feeder, pharoid and accumulator；Wherein, the feeder is for launching absorbing grains to be heated；The spoke
The radiant heating face with pre-determined tilt angle that is provided with is penetrated on heater, and technical staff can be by setting different inclinations angle
It spends to adjust slip velocity of the absorbing grains on the radiant heating face, so as to the absorbing grains put into from the feeder
Solar radiation can be fully absorbed on the radiant heating face, then be slid again into the accumulator, to high degree
Improve the protection of the endothermic temperature of the particle heat sink in ground.
Embodiment 1
Present embodiments provide it is a kind of for light collecting particle heat collector under photo-thermal power generation, referring initially to Fig. 1 to this reality
The structure and endothermic process for applying the heat collector of example are described in detail.As shown in Figure 1, the particle heat collector includes particle heat absorption
Device and beam condensing unit, wherein particle heat sink include pan feeding surge tank 1 (feeder), radiation inclined plate 3 (pharoid)
With storing surge tank 6 (accumulator)；Specifically, absorbing grains enter the particle heat sink by pan feeding surge tank 1, together
When, pan feeding surge tank 1 also has the function of of short duration storage absorbing grains so that a large amount of absorbing grains can be launched simultaneously to
In pan feeding surge tank 1, to effectively avoid the problem that absorbing grains need the moment to launch.In addition, the bottom surface of pan feeding surge tank 1 is set
It is equipped with certain angle of inclination, and the angle of inclination is more than the angle of repose of absorbing grains, so as to the heat absorption in pan feeding surge tank 1
Particle can be slid under the effect of gravity on radiation inclined plate 3, to effectively save driver, save installation cost.It needs
It is bright, although the feeder described in this preferred embodiment is pan feeding surge tank 1, but it is also possible to according to actual use need
Sets itself feeder is sought, as long as absorbing grains can be flowed by the feeder in the particle heat sink.
Pre-determined tilt angle is provided between radiation inclined plate 3 and horizontal plane, and technical staff can refer to absorbing grains
The pre-determined tilt angle of angle of repose sets itself radiation inclined plate 3；The pre-determined tilt angle is typically set at the angle of repose than absorbing grains
It is 3-4 ° big so that absorbing grains can slowly flow under the action of gravity and frictional force on radiation inclined plate 3, while by the sun
Radiation directly heats；In addition, radiation inclined plate 3 can also absorb solar radiation and be converted into itself thermal energy, then again by these heat
Absorbing grains can be passed to；Preferably, radiation inclined plate 3 is made of carborundum plate, corundum plate or mullite plate.
It is understood that the utility model is arranged to have pre-determined tilt angle with horizontal plane by that will radiate inclined plate 3：One
Aspect, absorbing grains can realize flowing by radiating inclined plate 3 so that the particle heat sink is without being arranged driver
In the case of the flowings of absorbing grains can be realized, so as to while high degree saves production cost and manufacturing cost, moreover it is possible to
Enough effectively improve the high temperature resistance of the particle heat sink；On the other hand, the inclination of inclined plate 3 can also be radiated by adjusting
Angle effectively to adjust absorbing grains by radiating slip velocity when inclined plate 3, to which effectively control absorbing grains are through overshoot
Time used in inclined plate 3, so that can fully stop on radiation inclined plate 3 from the absorbing grains put into pan feeding surge tank 1
It stays, while solar radiation is fully converted into thermal energy and is stored, then slide again slow to the storing for storing absorbing grains
It rushes in tank 6, to ensure that absorbing grains are different according to solar radiation situation, can also be absorbed into enough solar radiations to reach pre-
Fixed temperature, and the thermal energy of absorbing grains storage is effectively preserved in storing surge tank 6, to dramatically ensure
The endothermic temperature of the particle heat sink.
It should be noted that in this preferred embodiment, which uses inclined plate structure, but the utility model is not
It is limited to the structure, technical staff can select the radiant heating face structure with suitable geometry according to actual needs, such as
Waveform, ladder-like, notch board, protrusive board etc. are passed through as long as the radiant heating face can be realized with controlled rate carrying absorbing grains
The function of area of irradiation.
Although the pharoid described in this preferred embodiment is radiation inclined plate 3, technical staff can also basis
Actual use demand sets itself pharoid, and radiation of the setting with angle of inclination adds on the pharoid
Hot face, as long as absorbing grains can convert solar energy into itself thermal energy storage on the pharoid.In addition, this
Utility model is by using radiation inclined plate 3 so that the flow velocity of absorbing grains is effectively controlled, so that by radiating inclined plate 3
Absorbing grains rheology obtain it is finer and close, to effectively improve absorptivity of the absorbing grains to solar radiation.
In technical solution provided in this embodiment, particle heat sink further includes that setting is oblique with radiation in pan feeding surge tank 1
Pan feeding gate valve 2 between plate 3 is rate of discharge since heat sink has rate of discharge controller, total flow controller
Controller, the pan feeding gate valve 2 then only have the function of controlling absorbing grains layer thickness.The pan feeding gate valve 2, which has, to be opened and closes
Closing two states, under closed state, absorbing grains will not enter radiation inclined plate 3 from pan feeding surge tank 1, under open state, pan feeding
Gate valve controls the thickness of absorbing grains layer by controlling opening size.Pan feeding gate valve 2 launches heat absorption by the way of orifice jet
Particle makes particle temperature be more uniformly distributed to keep stratum granulosum thinner.
In other more excellent embodiments of the utility model, in the case where no rate of discharge is adjusted, pan feeding gate valve 2
The aperture of inlet can be adjusted by way of moving up and down, and spoke is flowed by pan feeding surge tank 1 to effectively adjust
The thickness and flow for penetrating the absorbing grains layer on inclined plate 3, so that the particle heat sink can be according to the sun of varying strength
Radiation effectively to adjust the thickness of absorbing grains layer, so that after being heated by solar radiation on radiation inclined plate 3
Absorbing grains can remain preset heating temperature, and then effectively stablize the endothermic temperature of the particle heat sink.
It should be noted that, although the pan feeding gate valve described in this preferred embodiment is pan feeding gate valve 2, still, technology people
Member can also be buffered as long as the pan feeding gate valve can be controlled by pan feeding according to actual use demand sets itself pan feeding gate valve
Tank 1 flow to the thickness and flow of the absorbing grains on radiation inclined plate 3.
Particle heat sink provided in this embodiment further includes the blanking funnel being connected with radiation inclined plate 3 and its column of inside
Plate particle flow field regulation structure 4 is (if the blanking funnel hereinafter mentioned without specified otherwise, refers both to blanking funnel and its interior
The column plate particle flow field regulation structure in portion).Preferably, the absorbing grains after being heated on radiation inclined plate 3 can be in gravity
Under the action of flow into blanking funnel 4 in, and in blanking funnel 4 carry out adequately mixing heat absorption so that absorbing grains
Temperature more uniformly, and then effectively can avoid the problem that being easy that there are localized hyperthermias in the particle heat sink.Meanwhile
Blanking funnel 4 only has that there are one shrinkages to export, therefore final gas-solid mixed flow region can be effectively reduced, to effectively reduce
The contact area of absorbing grains and fluidisation, to effectively reduce fluidized gas caused by heat loss, reduce thermal losses.
The structure of blanking funnel in the present embodiment 4 is described in detail in conjunction with Fig. 3 and Fig. 4；Wherein, Fig. 3 the present embodiment
The schematic elevation view of the blanking funnel of middle particle heat sink, Fig. 4 are the blanking funnels of the particle heat sink of the present embodiment
Schematic cross-sectional view.As shown in figure 3, the particle flow field regulation structure being arranged in blanking funnel 4 is column harden structure, including four groups parallel
The drainage plate 41 and bumper post 42 of setting.Wherein, every group of column harden structure includes two pieces of drainage plates 41 and a bumper post 42.Its
In, two pieces of 41 discrete settings of drainage plate, whole is in funnel shaped, and the upper end is absorbing grains inlet, is had larger transversal
Area facilitates absorbing grains to enter；Lower end is absorbing grains exit, and centre is provided with bumper post 42, and the cooperation of drainage plate 41 is slow
The flow of absorbing grains can effectively be reduced by rushing column 42, while effectively guide the flow direction of absorbing grains；Because drainage plate 41 is gentle
It rushes column 42 and is in downstream, gap is smaller, only allows limited absorbing grains to pass through in certain time so that absorbing grains are going out
Mouthful place have controllable outflow flow, due to flow into flow out flow it is equal, the column harden structure equally can to absorbing grains from
The flow that radiation inclined plate 3 flows into end entrance on drainage plate 41 is adjusted.It therefore, can be by spoke if according to the difference in final position
The absorbing grains flow path penetrated on inclined plate 3 is divided into four branch flow passages, and sprue is made of four branch flow passages, every branch flow passage
In the absorbing grains corresponding other column harden structure of respective sets fallen into blanking funnel 4 respectively, according to above-mentioned analysis it is found that every
The flow of branch flow passage can pass through column harden structure independent control.The uninterrupted directly determines absorbing grains in radiation inclined plate again
Transverse flow speed distribution on 3, to realize the control for absorbing grains transverse temperature field.
It should be noted that branch flow passage described in the utility model can be by radiant heating face additional slide
Dynamic rail road, makes absorbing grains be slided in strict accordance with orbit track, specific obtained from, image branch flow passage；Also may be used
To be the abstract tributary that is limited according to absorbing grains mass motion track as described in the present embodiment in flow field
Road.
In order to effectively improve the uniformity for the absorbing grains temperature for radiating 3 end each point of inclined plate, further effectively to keep away
Exempt to be easy the presence of localized hyperthermia in the particle heat sink, 3 different transverse direction positions of corresponding radiation inclined plate in blanking funnel 4
Multiple temperature monitoring points are equipped with, the branch flow passage flow control portion for being located at backstage can be according to the temperature of these temperature monitoring point Real-time Feedbacks
Situation is spent, judges whether the temperature radiated on inclined plate 3 is uniform, and it is gentle to send the drainage plate 41 that instruction changes in blanking funnel 4
The relative position for rushing column 42 effectively adjusts VELOCITY DISTRIBUTION of the absorbing grains on radiation inclined plate 3.For example, working as institute
It is high to state 3 intermediate radiation intensity of pharoid, it is when both sides radiation intensity is low, then intermediate drainage plate 41 is remote with bumper post 42
It is close from, the drainage plate 41 on both sides and bumper post 42, so that 3 intermediate absorbing grains flow of pharoid is improved and both sides heat absorption
Grain flow-reduction；When 3 intermediate radiation intensity of the pharoid is low, when both sides radiation intensity is high, then by intermediate drainage plate
41 close, intermediate with bumper post 42 drainage plates 41 and bumper post 42 are separate, and 3 intermediate absorbing grains flow of pharoid is made to drop
Low and both sides absorbing grains flow improves.As shown in figure 3, in the present embodiment, drainage plate 41 and bumper post 42 are movable member,
Wherein bumper post 42 can move up and down, can moving up and down between realization by bumper post 42 if drainage plate 41 is motionless
The change of gap size.And three pieces of intermediate inverted V-shaped drainage plates 41 can be rotated along vertex, and when it is rotated clockwise, the left side
The flow of the flow-reduction of branch flow passage, the right branch flow passage increases；It is set using multilevel hierarchy by drainage plate 41 in this present embodiment
It sets, upper layer is first order drainage plate, and lower layer is second level drainage plate, wherein the heat absorption in the first order drainage plate of the right and left
Particle is flowed into respective in the second level drainage plate of the right and left.Therefore, if by four branch flow passages of the first order from left to right according to
It is secondary to be named as the first branch flow passage to the 4th branch flow passage, since heat sink provided in this embodiment can pass through flow regulator 12
Adjust the total flow in flow field, the flow proportional of intermediate inverted V-shaped plate adjustment left and right, to realize that the first branch flow passage adds the second tributary
The flow in road and accurate adjustable.Further, third branch flow passage adds the flow of the 4th branch flow passage and accurate adjustable；And due to first
Branch flow passage can pass through the V that falls on both sides with flow proportional, the third branch flow passage of the second branch flow passage with the flow proportional of the 4th branch flow passage
Shape plate is adjusted, and therefore, by the setting of the multilevel hierarchy, can be realized for all branch flow passage flows by the rotation of drainage plate
Accurately control.
It is understood that above-mentioned control method can also realize that technical staff can be with root by the translation of drainage plate
Control method is voluntarily selected according to actual conditions, as long as by drainage plate 41 each other or between drainage plate 41 and bumper post 42
Flow control is realized in the variation of geometrical relationship.
In addition, those skilled in the art are also understood that, although the blanking mixer described in this preferred embodiment
For blanking funnel 4, still, technical staff can also be according to actual use demand sets itself blanking mixer, as long as described fall
Material mixer enables to the absorbing grains after heating to be sufficiently mixed and be adjusted to the distribution of particle flow field velocity.
Referring next to Fig. 1, particle heat sink provided in this embodiment further includes that setting is buffered in blanking funnel 4 and storing
Flow controller between tank 6, the flow controller specifically include pneumatic control valve 5, wind turbine 8 and flow regulator 12,
In, the air inlet of pneumatic control valve 5 is connected with flow regulator 12, and flow regulator 12 is connected with wind turbine 8, passes through blanking
The absorbing grains that funnel 4 carries out after rectification are fallen under gravity into pneumatic control valve 5.The particle heat absorption dress of the utility model
Setting can be using air as the fluidized gas of absorbing grains, so that the particle heat sink can be by controlling flow regulator
12 effectively control the fluidisation degree of the absorbing grains in pneumatic control valve 5, to which effectively control is flowed by pneumatic control valve 5
The flow of absorbing grains in storing surge tank 6.Preferably, wind distributing mesh, and institute are provided at the air inlet of pneumatic control valve 5
High temperature resistant silk screen of the wind distributing mesh by aperture less than minimum absorbing grains grain size is stated to be made；It is further preferred that by pneumatic control valve 5
Outlet lower edge height be arranged to it is identical as the height of the absorbing grains on the downside of the outlet of pneumatic control valve 5, so as in wind
The fluidized gas that machine 8 generates can blow out absorbing grains from the exit of pneumatic control valve 5 when being in incipient fluidization wind speed, to
Effectively reduce the loss of fluidized gas heat.
It will be appreciated to those of skill in the art that although the rate of discharge controller described in this preferred embodiment includes
Pneumatic control valve 5, wind turbine 8 and flow regulator 12, still, technical staff obviously can also be according to actual product demands voluntarily
Selected rate of discharge controller, if the particle heat sink can by adjust the rate of discharge controller change from
The flow for radiating the absorbing grains that inclined plate 3 flows into storing surge tank 6, so that the particle heat sink can be according to not
The flow for effectively to adjust absorbing grains with the solar radiation of intensity, so that absorbing grains can remain predetermined heat
Temperature, and then effectively stablize the endothermic temperature of the particle heat sink.
Above-mentioned in the optimal technical scheme of the particle heat sink of photo-thermal power generation, the particle heat sink also to wrap
Include temperature detector 10 and temperature feedback arrangement 11；The temperature detector 10 is used to detect the temperature of specific position, it is preferable that
The temperature of blanking funnel 4 and the absorbing grains in storing surge tank 6 is detected, and measurement data is passed into temperature feedback dress
In setting 11, temperature feedback arrangement 11 controls the flow regulator according to the real time temperature of absorbing grains, to control fluidisation
Throughput, to control absorbing grains flow, to effectively adjust flow velocity of the absorbing grains on radiation inclined plate 3, to absorb heat
Particle can fully absorb solar radiation on radiation inclined plate 3, to further effectively stablize the suction of the particle heat sink
Hot temperature.It is understood that technical staff can be located at blanking funnel 4 according to actual use demand sets itself absorbing grains
And the temperature of storing surge tank 6, when absorbing grains temperature is higher than predetermined temperature, the particle heat sink can pass through control
Flow regulator 12 processed increases the flow of absorbing grains, when used when to reduce absorbing grains through overshoot inclined plate 3
Between, and then effectively reduce the temperature of the absorbing grains flowed out by pneumatic control valve 5；Meanwhile when absorbing grains temperature is less than pre-
When constant temperature is spent, the particle heat sink can reduce the flow of absorbing grains by controlling flow regulator 12, to
Time used when increasing absorbing grains through overshoot inclined plate 3, and then effectively improve the heat absorption flowed out by pneumatic control valve 5
The temperature of grain.
In addition, temperature detector 10 is not limited to single test point in blanking funnel 4 in the present embodiment.Due to this implementation
Flow field is adjusted using column harden structure in example, needs the outlet temperature to every branch flow passage to be detected, and feed back to
The control module of column harden structure.Therefore, in the present embodiment temperature detector 10 is both provided in the exit of every group of column harden structure
Test point, or temperature detector 10 is separately provided.
Adjusting method in the present embodiment has certain delay due to being completely dependent on temperature feedback.In this practicality
In other novel preferred embodiments, which can also have radiometer and pre-conditioned module, and user can be according to reality
When radiation intensity situation, before temperature changes, to heat dump working condition carry out pre-conditioned.For example, sending out
When existing sheet cloud sector shielded from sunlight, the radiation intensity that a period of time is measured with radiometer is weaker, should be at once according to radiation intensity
Reduction amplitude, pre-conditioned is carried out to air mass flow using pneumatic control valve 5, for example air mass flow is reduced into half or so, so
Afterwards further according to the temperature conditions in blanking funnel, follow-up accuracy controlling is carried out to air mass flow, until absorbing grains are leaked in blanking
Temperature in bucket meets design temperature requirement.
Heat collector provided in this embodiment for photo-thermal power generation includes heat sink and beam condensing unit, wherein optically focused fills
It sets including light inlet 7 and light barrier 9, in the present embodiment, foucusing solar radiation can be from top to bottom to be entered by light inlet 7
Inside heat collector.In other more excellent embodiments of the utility model, as shown in Fig. 2, foucusing solar radiation can also be with water
Square into heat collector.Preferably, light inlet 7 includes high temperature lens, and the high temperature lens are arranged with inverted conical
Entrance aperture, the high temperature lens have high temperature resistant, the high characteristic of transmissivity, and then dramatically ensure particle heat absorption
The heat absorption efficiency safe and stable operation of device；Meanwhile the particle heat sink described in this preferred embodiment will be also by will be described
Light inlet is arranged to the incidence range that inverted conical effectively increases solar radiation, to further increase the incidence of solar radiation
Amount.
It should be noted that technical staff can be according to the structure of the condition of incidence sets itself light inlet 7 of solar radiation
And position, as long as foucusing solar radiation can enter heat collector inside, such as dish-style two by light inlet 7 at a certain angle
The foucusing solar radiation that the either tower horizontal optically focused of secondary reflection of the foucusing solar radiation that optically focused is formed under secondary reflection is formed.
In the present embodiment, light barrier 9 can be distributed according to the incident direction and hot spot of foucusing solar radiation, by adjusting certainly
The geometry of body and position so that foucusing solar radiation exposes on the radiation inclined plate 3 and reduces focusing to the full extent
The ratio that solar radiation is escaped by multiple reflections by light inlet 7, to improve the heat absorption efficiency of particle heat sink.
Such as the light barrier inside the particle heat sink in the horizontal concentration applications of tower secondary reflection is set.
Heat collector provided in this embodiment further includes the insulation cover being arranged around heat collector.The insulation cover is by high temperature resistant silicon
Sour aluminium ceramic fiber blanket is made.When work, the enclosure interior of heat collector is in the condition of high temperature, and therefore, it is necessary in high-temperature part
Insulation cover is set around component to effectively reduce scattering and disappearing for heat, to further decrease heat loss, ensures the suction of heat collector
Hot temperature and efficiency.It will be appreciated to those of skill in the art that although the insulation cover described in this preferred embodiment is by resistance to height
Warm alumina-silicate ceramic fibre blanket is made, and still, technical staff obviously can also voluntarily select other tools according to actual use demand
There are the material and structure of insulation effect.
Finally, those skilled in the art are also understood that, used in the particle heat sink of the utility model
Absorbing grains should select high high temperature resistant, absorptivity, circularity height, specific heat capacity height, good economy performance and the solid being easily obtained
Grain；Meanwhile technical staff can also adulterate the material that can be carried out chemical energy storage or carry out phase-change accumulation energy in absorbing grains,
To further increase the energy storage effect of absorbing grains.Preferably, the suction used in the particle heat sink of the utility model
Hot particle is size in 30 mesh to the bauxite ceramsite sand between 40 mesh.
Embodiment 2
Fig. 5 on 2 28th, 2017 intraday intensities of illumination of Hangzhou YuQuan school area, ZheJiang University thermal energy institute attic at any time
Between change curve, the heat collector in the utility model embodiment 1 is placed under the light environment, is with a working cycles
Example, briefly describes the working method of heat collector provided by the utility model.
Holding stage：
In morning 0:00 to morning 8：In 00 period, condition without sunshine, particle heat sink is out of service, to improve
Insulating efficiency reduces heat loss of the heat collector at night, needs on the basis of original insulation cover used in the daytime, additionally to add
At least one layer of insulation cover.
Warm-up phase：
After morning sunrise, such as the morning 8 in this working cycles：00 to 9:In 00 period, heat collector surface just starts to connect
The radiation of some strength is received, one side radiation intensity rises to set temperature insufficient for absorbing grains at this time；On the other hand
Device self-temperature is relatively low, can also take away heat from absorbing grains during the work time, further hinders absorbing grains temperature
Rising.Therefore, before entering normal operating conditions, it is necessary to be preheated to heat sink.
Present embodiment discloses a kind of pre-heating means of particle heat sink provided by the utility model, and concrete operations are such as
Under：The hot particle in part that the previous day is reserved in storing surge tank 6 is directly transported to pan feeding surge tank 1, in pan feeding gate valve 2
Under control, so that hot particle is slowly flowed through radiation inclined plate 3, be finally deposited in blanking funnel 4；Meanwhile removing the guarantor of additional
Temperature cover opens the insulation cover at masking light inlet 7, light is allowed to enter heat collector, using hot particle and radiant light simultaneously to inhaling
It is preheated inside thermal.
Working stage：
When the radiation intensity that heat collector receives is higher, detecting the temperature in blanking funnel 4 by temperature detector 10 is
It is no to reach set temperature, judge whether heat sink can enter normal operating conditions.At this point, wind turbine 8 is opened, with temperature feelings
Condition adjusts flow regulator 12, and the temperature in blanking funnel is made to remain set temperature.
The absorbing grains flow for entering storing surge tank 6 by 4 tail portion of blanking funnel is regulated and controled by flow regulator 12, and by
The different lateral positions of radiation inclined plate 3 enter the absorbing grains flow of blanking funnel 4 then by the flow field tune of setting in blanking funnel 4
Section structure is adjusted.After opening flow field regulation function, it is somebody's turn to do the board-like flow field regulation of column that be made of bumper post 42 and drainage plate 41
Structure can adjust each tributary according to the temperature data that the temperature monitoring point of 3 different lateral position settings of corresponding radiation inclined plate obtains
The velocity flow profile of road absorbing grains.The function is commonly available to the extremely uneven situation of illumination condition, as portion has obstacle
There is reflected light hot spot to be radiated at the situation on radiation inclined plate in object or the cloud layer partial occlusion sun or ambient enviroment, user can be with
The function is selectively unlocked or closed according to specific operating mode.
In the utility model other preferred embodiments, heat sink also has the function of pre-conditioned, which uses
It is mutated environment in some coped in actual condition.Such as the case where large stretch of cloud sector shielded from sunlight, will cause on radiation inclined plate 3 by spoke
The unexpected reduction for penetrating intensity, is now in that the absorbing grains of raying position eventually enter into blanking funnel to it, temperature reduces quilt
It detects that there is still a need for the suitable regular hours, if not reducing its flow velocity as early as possible, improves its raying time, the lag that temperature is adjusted
The particle temperature that property will make it be unable to reach setting.Therefore, the operating mode more complicated in some cloudy weathers or weather condition, makes
User needs to open the pre-conditioned function, improves the temperature stability of absorbing grains.
The length needs of working time are adjusted according to the light conditions at geographic location, season and exact date
It is whole, such as the morning 9 in the present embodiment:00 to afternoon 17:00, radiation intensity is eligible, can work normally.
Return to holding stage：
Afternoon 17:00 to evening 0:In 00 period, when radiation intensity is relatively low, particle heat sink has been difficult to normally transport
Row, reach set temperature requirement absorbing grains flow it is extremely low when, heat collector, and jacketed additional insulation cover can be closed, with
Reduce heat loss.
Absorbing grains after the particle heat sink heat absorption heating of the utility model, thermal energy can be used for generating electricity, but simultaneously
It is not limited to this.Stored thermal energy, can utilize in all fields after its heating of absorbing heat.
So far, it has been combined attached drawing and describes the technical solution of the utility model, still, those skilled in the art are easy reason
Solution, the scope of protection of the utility model are expressly not limited to these specific implementation modes.Without departing from the utility model
Under the premise of principle, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these change or
Technical solution after replacement is fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of particle heat sink, the particle heat sink can convert radiation energy to thermal energy storage by absorbing grains
It deposits, which is characterized in that including the feeder, pharoid and accumulator to communicate with each other；
Wherein, the feeder is for launching absorbing grains to be heated；
The radiant heating face with pre-determined tilt angle is provided on the pharoid, absorbing grains can be in the radiation
By heat by solar radiation on heating surface, and slid under the effect of gravity into the accumulator；
The accumulator is used to store the absorbing grains after heating.
2. particle heat sink according to claim 1, which is characterized in that the particle heat sink further includes that setting exists
Pan feeding gate valve between the feeder and the pharoid；
The pan feeding gate valve be used to control flow to by the feeder thickness of the absorbing grains on the pharoid with
Flow.
3. particle heat sink according to claim 1, which is characterized in that the particle heat sink further includes that setting exists
Rate of discharge controller between the pharoid and the accumulator；
The absorbing grains that the rate of discharge controller is used to control after being heated by the pharoid flow into the storing
Flow when device.
4. particle heat sink according to claim 3, which is characterized in that the particle heat sink further includes that setting exists
Blanking mixer between the pharoid and the rate of discharge controller；
The blanking mixer is for making the absorbing grains after heating be sufficiently mixed.
5. particle heat sink according to claim 3 or 4, which is characterized in that the particle heat sink further includes temperature
Spend detector and temperature feedback arrangement；
The temperature detector is used to detect the temperature of specific position and measurement data is passed to the temperature feedback arrangement
In, temperature feedback arrangement controls the rate of discharge controller according to the real time temperature of absorbing grains.
6. particle heat sink according to claim 1, which is characterized in that further include absorbing grains flow field regulation structure,
The path for exporting to the accumulator entrance from the feeder by the absorbing grains defines the mainstream of the absorbing grains
Road；The sprue is divided into two or more branch flow passages when passing through the pharoid, inhaled described in every branch flow passage
The flow velocity of hot particle can be by the particle flow field regulation structure independent control.
7. particle heat sink according to claim 6, which is characterized in that the absorbing grains flow field regulation structure includes
Drainage plate, bumper post and branch flow passage flow control portion；
The drainage plate is made of multigroup plate-shaped member, and the outlet that the plate-shaped member corresponds to absorbing grains flow field is arranged with shape
At multiple branch flow passages；
The position that angle is mutually formed in two pieces of plate-shaped members is arranged in the bumper post；
At least partly plate-shaped member and/or the bumper post of the drainage plate are movable member, and activity is by the branch flow passage
Flow control portion is adjusted.
8. particle heat sink according to claim 7, which is characterized in that the plate-like portion of the adjacent buffering intercolumniation
Part is continuous, and multigroup plate-shaped member of the drainage plate includes at least first order plate-shaped member and second level plate-like portion
Part, the absorbing grains in multigroup first order plate-shaped member can flow into the second level plate-shaped member.
9. a kind of heat collector, which is characterized in that there is the heat collector particle described in any item of the claim 1 to 8 such as to inhale
Thermal.
10. a kind of heat collector, which is characterized in that include particle heat sink as described in any one of claim 3-5, enter light
Mouth, radiometer and pre-conditioned module, the light inlet are used to foucusing solar radiation being transmitted through the pharoid, the spoke
It penetrates meter and measures radiation intensity suffered by the pharoid in real time, the pre-conditioned module can be according to the measurement of the radiometer
Rate of discharge controller described in output control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087443.2U CN207922603U (en) | 2018-01-19 | 2018-01-19 | Particle heat sink and its heat collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820087443.2U CN207922603U (en) | 2018-01-19 | 2018-01-19 | Particle heat sink and its heat collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057119A (en) * | 2018-01-19 | 2019-07-26 | 浙江大学 | Particle heat sink and its heat collector |
| CN113390190A (en) * | 2021-07-14 | 2021-09-14 | 吉林建筑大学 | Secondary reflection type particle heat absorber |
-
2018
- 2018-01-19 CN CN201820087443.2U patent/CN207922603U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057119A (en) * | 2018-01-19 | 2019-07-26 | 浙江大学 | Particle heat sink and its heat collector |
| CN110057119B (en) * | 2018-01-19 | 2023-11-24 | 浙江大学 | Particle heat absorber and heat collector thereof |
| CN113390190A (en) * | 2021-07-14 | 2021-09-14 | 吉林建筑大学 | Secondary reflection type particle heat absorber |
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