CN105771819B - Circular response device and its working method in a kind of calcium base thermochemical high temperature fluid bed - Google Patents
Circular response device and its working method in a kind of calcium base thermochemical high temperature fluid bed Download PDFInfo
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- CN105771819B CN105771819B CN201610289990.4A CN201610289990A CN105771819B CN 105771819 B CN105771819 B CN 105771819B CN 201610289990 A CN201610289990 A CN 201610289990A CN 105771819 B CN105771819 B CN 105771819B
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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
Abstract
The present invention relates to circular response device and its working methods in a kind of calcium base thermochemical high temperature fluid bed.Device includes guiding region（Ⅰ）, a resolver（Ⅱ）, exothermic reaction zone（Ⅲ）, second decomposition area（Ⅳ）, vibrator, gravity sensor；Apparatus of the present invention have been sequentially arranged guiding region from top to bottom（Ⅰ）, a resolver（Ⅱ）, second decomposition area（Ⅳ）；Guiding region（Ⅰ）Pass through shell flange and a resolver（Ⅱ）Connection, a resolver（Ⅱ）Pass through entire body flange and second decomposition area（Ⅳ）Connection；Second decomposition area（Ⅳ）It is arranged in a resolver for a cylinder-like structure（Ⅱ）Inside；Vibrator is mounted on a resolver（Ⅱ）On outer wall, gravity sensor is mounted on a resolver（Ⅱ）With second decomposition area（Ⅳ）Between；The present invention has the characteristics that heat exchange efficiency is high, fluidized state is good, can realize intermittent interior cycle without heat waste, can be used for high temperature solar thermal power generation system.
Description
Technical field
The invention belongs to high temperature heat storage arts, more particularly to a kind of to utilize calcium base heat chemistry reversible reaction external heat
Chemical energy can be converted into and be then converted to cycle energy storage device and method in the fluid bed of high-grade thermal energy.
Background technology
It is one of theme of current era to tap a new source of energy.Solar energy is nexhaustible because its storage capacity is very big, to environment
The features such as pollution-free, has attracted the sight of numerous scholars.Primary energy such as coal simultaneously, the storage capacity of oil is very limited, this rush
People have been made to accelerate the paces utilized to solar energy development.In terms of electricity generation system, China is mainly sent out with thermal power generation and waterpower
Based on electricity, solar power system is not perfect.If suitable solar energy storage system can be developed and designed corresponding
Device is applied in high temperature solar heat power generation system, can not only reduce the depletion rate of primary energy, and it is dirty to reduce environment
The discharge capacity of object is contaminated, the efficiency of solar energy utilization is improved, while also there are very high environmentally friendly, energy saving, economic dispatch multiple benefits, to me
The structure optimization of state's future electricity generation system is significant.
Two key technologies are solar energy heating technology and solar energy heat-storage technology in solar heat power generation system.It is existing
More perfect solar energy storage technology mainly has sensible heat energy storage and phase-change accumulation energy, and less, energy storage system is studied in terms of heat chemistry energy storage
System is also remote not perfect.Sensible heat energy storage is to be melting into row storage energy using the specific heat of energy storage material, passes through the change of energy storage material temperature
Change to realize the release or storage of energy.The energy storage efficiency of sensible heat energy storage depends on the temperature difference enthalpy of energy storage material.Phase transformation is stored up
Can the absorption of energy or be released during the change of phase occurs on phase transition temperature or phase transition temperature using phase-change material
Put to realize the storage of energy.The energy storage efficiency of phase-change accumulation energy depends on the enthalpy of phase change of phase-change material.Heat chemistry energy storage is profit
Reversible thermal chemical reaction is carried out to realize the storage of energy with energy storage material.It is anti-that its energy storage efficiency depends primarily on heat chemistry
The reaction enthalpy answered.
Because the reaction enthalpy of thermal chemical reaction is than the enthalpy of phase change of phase-change material and the temperature difference enthalpy of sensible heat energy storage in most of feelings
All big 10 times or more under condition, so the unit mass energy storage density of heat chemistry energy storage is bigger than sensible heat energy storage and phase-change accumulation energy.And
And sensible heat energy storage and phase-change accumulation energy also have energy storage temperature relatively low, energy loss is larger, and energy storage or release efficiency are low, this
So that equipment used needs to prevent energy loss using certain thermal insulation technology.In addition, under normal temperature condition, sensible heat
Material and the energy of phase-change material storage can be lost at any time, be cannot achieve and stored for a long time without heat waste under normal temperature condition.
Because it is big with energy storage density, energy storage efficiency is good for heat chemistry energy storage, and stability is good, can be for a long time without spies such as heat waste preservations
Point has attracted the sight of domestic and foreign scholars.Although the heat chemistry energy storage system studied has more than 70 kinds, ideal heat chemistry
Energy storage system should meet：Good reversibility is reacted, reaction enthalpy is high, no side reaction, the conditions such as raw material is easy to get and price is low.So at present
Ideal heat chemistry energy storage system is simultaneously few.Mainly there is Mg (OH)2/MgO+H2The thermal decomposition of the inorganic hydroxides such as O, NH3's
The energy storage systems such as decomposition, the thermal decomposition of methane-carbon dioxide catalytic reforming, ammonium salt, the hydrogenation of organic matter and dehydrogenation reaction.
System is thermally decomposed for inorganic hydroxide, that most study is Ca (OH) at present2/CaO+H2O systems, but mesh
It is preceding for the system energy storage efficiency, the device that cycle life and reaction system use is still not perfect.There is scholar to find anti-
Answer the material such as expanded graphite for adding some good heat conductivities in device that can improve the heat transfer efficiency of reaction.But due to reaction
With carbon dioxide side reaction occurs for object CaO will lower cycle life significantly.Simultaneously in terms of device, research at present is mainly used and is filled out
A reactor or fixed bed reactors are filled, it is anti-so as to cause reactor heat transfer efficiency difference and reaction system that reactant is easy heat knot
The problems such as answering rate low.
Invention content
Based in place of the above the deficiencies in the prior art, it is an object of the invention to propose in calcium base thermochemical high temperature fluid bed
External heat such as solar energy is stored in reaction medium, passed through again when needing thermal energy by circular response device and its working method
The exothermic reaction of reversible reaction converts chemical energy to high-grade thermal energy, meets the energy storage method of high temperature electricity generation system requirement.
Principle of the present invention：Using calcium base heat chemistry reversible reaction：Ca(OH)2(s)+∆H↔CaO(s)+H2O(g)
Realize mutually converting for external heat such as solar energy and chemical energy.Ca (OH) is heated by the high-temperature hot fluid of solar energy heating2
When solid, Ca (OH)2The endothermic reaction occurs for solid, converts the thermal energy of absorption to chemical energy and is stored in CaO solids and vapor
In；It being passed through in the fluidized-bed reactor equipped with CaO solids when needing thermal energy, then by vapor, exothermic reaction occurs for the two, from
And obtain high-grade thermal energy.The present invention is realized solar energy and is changed using the theory of solar energy-thermal energy-chemical energy-thermal energy conversion
Learn can mutually convert, to solve solar energy because of the time, Regional Distribution is uneven and causes electricity generation system stability difference etc. and asks
Topic.This reaction system constitutes a closed system in the device simultaneously, and CaO solids are stored in cylindrical shell and internal guide cylinder
Between lower part, temporarily separated with packing layer by gravity sensing plate, when needing CaO solids, then pass through gravity sensor will
CaO solid powders, which are put into packing layer, reacts to realize with vapor intermittent interior cycle.In this way so that reaction system is without heat
Damage, and energy storage efficiency, cycle life greatly improve.Method of the present invention is particularly suitable for high temperature solar power generation system
System.
Device of the present invention：Described device mainly include guiding region, a resolver, exothermic reaction zone, secondary point
Xie Qu, vibrator, gravity sensor；Described device has been sequentially arranged guiding region, resolver, a second decomposition from top to bottom
Area；Guiding region is connect by shell flange with a resolver, and a resolver is connect by entire body flange with second decomposition area；
Second decomposition area is that a cylinder-like structure is arranged on the inside of a resolver；Vibrator is mounted on a resolver outer wall, weight
Power inductor is mounted between a resolver and second decomposition area；The guiding region is mainly by exhaust with louver structure
Mouth, end socket, arc deflector composition, exhaust outlet with louver structure are mounted on end socket both sides, arc deflector by flange
It is welded on end socket inside top, is mainly used for the Ca (OH) that guiding is entrained in reaction zone generation2The fluid-mixing of solid flows to one
Secondary resolver；Resolver is mainly by circular shell, the heat exchanger tube with metal fin, with the heat exchange of metal fin
Pipe hot fluid inlet and hot fluid outlet ports and one-way water outlet valve composition, the heat exchanger tube with metal fin are mounted on a resolver
Loop configuration in, with metal fin heat exchanger tube hot fluid inlet and its hot fluid outlet ports be arranged in circular shell lower end two
Side, unidirectional drain valve are arranged in circular shell lower end both sides and less than heat exchanger tube hot fluid inlet and its heat with metal fin
Fluid outlet is mainly used for the Ca (OH) generated to exothermic reaction zone2Once decomposed；The exothermic reaction zone is mainly by leading
Flow cartridge and heat conduction coil pipe composition, guide shell are connect by holder with circular shell, and the heat conduction coil pipe is mounted on inside guide shell,
It is mainly used for providing the space that CaO solids are reacted with vapor, and the thermal energy that the exothermic reaction is discharged is by heating heat conducting disk
Export is used for subsequent high temperature electricity generation system after water to high temperature vapor in pipe.Water conservancy diversion tube stent is consolidated for water conservancy diversion
It is fixed.The second decomposition area is mainly by reactor base, heat conduction coil pipe, heat conduction coil pipe hot fluid inlet and hot fluid outlet ports, wind
Cap, gas distribution grid, breather cheek valve and argon inlet mouth composition, breather cheek valve and high pressure argon gas air inlet are separately positioned on
Reactor base bottom end both sides, blast cap are connect by nut with airflow-distribution board, and airflow-distribution board passes through flange and reactor bottom
Seat connection, heat conduction coil pipe are mounted on the airflow-distribution board upper end in reactor base, heat conduction coil pipe hot fluid inlet and its hot-fluid
Body outlet setting is in reactor base both sides and heat conduction coil pipe hot fluid inlet is less than heat conduction coil pipe hot fluid outlet ports, is mainly used for
To decomposing incomplete Ca (OH) a resolver2The Ca (OH) that solid or exothermic reaction zone are fallen2Solid is decomposed.
Resolver includes circular shell, the heat exchanger tube with metal fin, the heat exchanger tube with metal fin
Hot fluid inlet and its hot fluid outlet ports, unidirectional drain valve；The heat exchanger tube with metal fin is mounted on a resolver
Loop configuration in, with metal fin heat exchanger tube hot fluid inlet and hot fluid outlet ports be arranged in circular shell lower end two
Side, unidirectional drain valve are arranged in circular shell lower end both sides and less than heat exchanger tube hot fluid inlet and its heat with metal fin
Fluid outlet.
Further, the arrangement mode of the metal fin in a resolver on the heat exchanger tube with metal fin is
Two layers of fin is in " people " shape cross-distribution or single layer fin with vertical direction in 45 °~60 ° arrangements；The fin uses stainless steel
Or Ca (OH) can be resisted2One kind in the steel of corrosion.
Further, the exothermic reaction zone includes guide shell and heat conduction coil pipe；The guide shell passes through holder and circle
Shell connects, and the heat conduction coil pipe is mounted on inside guide shell.
Further, second decomposition area includes reactor base, heat conduction coil pipe, heat conduction coil pipe hot fluid inlet and its hot-fluid
Body outlet, blast cap, airflow-distribution board, breather cheek valve and high pressure argon gas air inlet；The breather cheek valve and high pressure argon gas into
Gas port is separately positioned on reactor base bottom end both sides；The blast cap is connect by nut with airflow-distribution board, airflow-distribution board
It is connect with reactor base by flange；The heat conduction coil pipe is mounted on the airflow-distribution board upper end in reactor base；It is described
Heat conduction coil pipe hot fluid inlet and its hot fluid outlet ports setting are less than in reactor base both sides and heat conduction coil pipe hot fluid inlet
Heat conduction coil pipe hot fluid outlet ports.
Further, one or more heat exchangers are distributed in exothermic reaction zone and second decomposition area, and heat exchanger tube is every
A round coil is formed at 0.6~1.2 meter.
Further, have the vibrator in cylindrical shell exterior, for reduce calcium hydroxide be attached to guide shell or
It is attached on the heat exchanger tube with metal fin, to prevent the generation of fouling；There is gravity sensing dress in fluid bed floor installation
It sets, CaO solids can be stored in guide shell by the tablet end of gravity sensing device so just in internal guide cylinder lower end
Between cylindrical tube.
Technological process of the present invention：Exhaust outlet of the device end socket with shutter is connected with gas-liquid separator by pipeline
It connects, the gas-liquid separator gas outlet of argon gas and vapor is connected by the gas-drying apparatus of pipeline and argon gas, and gas-liquid separator goes out
The mouth of a river connect cold fluid feed inlet with phase-change type solar energy heat-storage device by pipeline, and gas-drying apparatus is connected by pipeline and compressor
It connects, argon gas compressor will be stored in by dry argon gas in argon bottle by pumping, and argon bottle is by pumping the argon with reaction unit
Gas air inlet connects；About 120 DEG C~150 DEG C of hot fluid is transported to the phase-change type sun by solar thermal collection system by pipeline
Water formation vapor can be used to heat in accumulator, the vapor of formation is transported by pump in steam buffer tank, and surge tank is logical
Pump is crossed to connect with the breather cheek valve in reaction unit；The superheated steam generated by solar thermal collection system is by pumping transport to mistake
In hot steam surge tank, superheated steam surge tank discharge port passes through the heat exchanger tube heat with metal fin in pipeline and reaction unit
Fluid feed mouth connects, the heat exchanger tube hot fluid discharge port with metal fin in reaction unit and phase-change type solar energy heating system
Heavy oil import of uniting connects.
In view of the craftsmanship of high temperature heat chemistry energy-storage system, the problems such as exploitativeness, safety, the present invention uses Ca
(OH)2/CaO+H2Energy storage system of the O thermal chemical reactions system as the present invention.The thermal chemical reaction system have raw material be easy to get,
Corrosivity is compared with the features such as small, energy storage density is big, invertibity is easily controllable.Under the reaction pressure of 0.1MPa, endothermic reaction Ca
(OH)2(s)+∆H→CaO(s)+H2The reaction temperature of O (g) is 500 DEG C~520 DEG C, can be heated with disk type solar collector
Hot fluid drives；Exothermic reaction CaO (s)+H2O(g)-∆H→Ca(OH)2(s) temperature is up to 550 DEG C~620 DEG C.
Arc flow deflector on the inside of end socket in described device guiding region is mainly used for guiding entrainment Ca2Gas flow one
Secondary resolver.
Exhaust ports design in described device guiding region on end socket has shutter.Its effect is:When carrying out, heat release is anti-
Contain a large amount of Ca (OH) in Ying Hou, vapor and argon gas mixed airflow2Solid, in exclusive segment water vapor process, shutter
Structure, which plays, prevents Ca (OH)2Solid is with the effect outside vapor and argon gas mixed airflow discharger.
The diameter of described device guide shell and cylindrical shell ratio is 0.6~0.8, in this diameter than in range, guide shell
Middle fluid fluidisation is in the best state.
Heat conduction coil pipe in the exothermic reaction zone is mainly used for the high-grade for absorbing CaO solids and vapor reaction is released
Thermal energy generates electricity for heating the water in heat conduction coil pipe to high temperature vapor for electricity generation system.
Its effect of finned heat exchanger tube in resolver is mainly to Ca (OH)2Solid add for the first time
Thermal decomposition, to realize the regeneration of CaO solids.
Metal fin structure its effect is designed on heat exchanger tube is:Increase Ca (OH)2The contact area of solid and heat exchanger tube,
So that Ca (OH)2Solid decomposition is the more efficient of CaO solids and vapor.It is arranged in " people " shape between double layer of metal blade
In 45 °~60 ° arrangements between row or single-layer metal, it can effectively increase the time of contact between fluid and metal fin,
So that heat exchange effect is more preferable.
It is in the purpose that cylindrical exterior installs vibrator：Avoid the grume Ca (OH) generated after exothermic reaction2Solid
It sticks on the inner wall or thermal-collecting tube of device to generate scale formation.
Gravity sensor main function is the CaO solids for storing certain mass, when CaO solids reach certain mass, weight
Power inductor is opened, and CaO solids enter packing layer, to carry out the intermittent cycle of CaO solids.
Heat exchanger tube in second decomposition area is mainly used for decomposing incomplete Ca (OH) to a resolver2Solid carries out the
Second decomposition and the Ca (OH) that exothermic reaction zone is fallen2Solid is decomposed.
The effect of the airflow-distribution board and blast cap of argon gas and vapor is mainly so that inside guide shell in second decomposition area
Fluidized state it is more preferable.
Flow of the present invention include mainly thermal energy with chemical transformation of energy and storage, chemical energy and hot transformation of energy with
Release, two flows are separated by guide shell, are carried out at the same time in time in position.
Chemical energy and hot transformation of energy and release process：CaO solid powders are stored in filling out in device second decomposition area in advance
In the bed of material, 110 DEG C~140 DEG C of the vapor from phase-change type thermal storage device is by pumping the one-way air inlet conveyed in reacted device
Valve enters in reaction unit, at the same the high pressure argon gas in argon bottle by argon inlet mouth in the reacted device of positive displacement pump with
Vapor enters in reaction unit together, and argon gas is distributed with vapor by gas distribution grid, acting in reactor for blast cap
After uniformly, the gas that the two is formed blows afloat the CaO solid powders in packing layer into exothermic reaction zone, the vapor in gas
It is come into full contact with CaO solid powders and CaO (s)+H occurs2O(g)-∆H→Ca(OH)2(s) exothermic reaction, the Gao Pin released
After export is used for after water to high temperature vapor in the heat conduction coil pipe (18) that position thermal energy is mainly used in heating exothermic reaction zone
Supervention electric system uses.And the Ca (OH) that exothermic reaction generates2Solid is entrained in the mixed gas of argon gas and vapor.Into
Guiding region, by the guiding function of the arc deflector on end socket in guiding region, into a resolver.In order to reduce argon gas with
The flow velocity of gas when the mixed airflow of vapor enters loop configuration makes Ca (OH)2Solid is filled with the heat exchanger tube with metal fin
Tap is touched, and in guiding region part, mixed gas need to be discharged by exhaust outlet with louver structure.The portion gas of discharge passes through
After the gas-liquid separator separates of argon gas and vapor, liquid enters phase-change type thermal storage device by pipeline, is steamed for generating new water
Gas.Argon gas is dried by argon gas drier, using argon gas compressor compresses, to be stored in argon bottle, to completion
Learning can be with hot transformation of energy and release process.
Thermal energy is with chemical transformation of energy and storage process：The superheated steam that solar thermal collection system generates passes through pipeline stream
Into in superheated steam surge tank.Then enter the primary decomposition of reactor by the hot fluid inlet of the heat exchanger tube with metal fin
The heat exchanger tube with metal fin in area.By the Ca (OH) for the mixed gas entrainment that argon gas and vapor form2Solid enters
Resolver carries out heat exchange, Ca (OH) with the heat exchanger tube with metal fin2Endothermic reaction Ca occurs for solid sorbent heat
(OH)2(s)+∆H→CaO(s)+H2O (g), by the thermal energy storage of absorption in CaO solids and vapor.With metal fin
Superheated steam in heat exchanger tube is after heat exchange, although temperature declines, still above 100 DEG C.The relatively low temperature steam of gained is logical
The hot fluid outlet ports for crossing the heat exchanger tube with metal fin enter in phase-change type solar energy heat-storage device, are steamed for generating new water
Gas.The CaO solids that decomposition reaction generates are deposited under gravity above gravity sensing plate, again when needing CaO solids
It puts it into packing layer.Reaction unit is discharged by the one-way water outlet valve of cylindrical tube lower part in vapor, passes through pipeline stream
Enter phase-change type thermal storage device as cold fluid for generating vapor.Ca (OH) in guide shell2Solid is fallen under the effect of gravity
In second decomposition area, CaO solids are generated by the heat conduction coil pipe heat resolve in packing layer；It is decomposed in annular region halfway
Ca(OH)2Solid also carries out decomposing for second herein, and the CaO solids of formation are used for subsequent reactions, to complete thermal energy and chemistry
Energy mutually converts and storage process.
The present invention compared with the prior art, has the following advantages that：
1, the method that the present invention uses heat chemistry energy storage has unit mass energy storage compared with phase-change accumulation energy and sensible heat energy storage
The big advantage of density.
2, heat chemistry energy storage of the present invention uses Ca (OH)2/CaO+H2O systems are easy to get with raw material, and cost of material is cheap, and
The smaller advantage of corrosivity in reaction process.
3, the simple easy cleaning of apparatus structure of the present invention can be made by first making to assemble after parts, while this hair
Bright device is easy to operate, can scale application.
4, device of the present invention constitutes a closed system, and reaction raw materials can store in reaction unit, cycle life
It greatly improves.
5, the present invention uses Ca (OH)2/CaO+H2O systems, system for use in carrying are closed system, can greatly reduce raw material and sky
Carbon dioxide exposure in gas and side reaction occurs, heat waste is small.
Description of the drawings
Fig. 1 is the special apparatus structure schematic diagram of the present invention.
Fig. 2 is structure of the invention subregion schematic diagram.
Fig. 3 is guide shell support schematic diagram.
Fig. 4 is heat exchanger tube round coil schematic diagram.
Fig. 5 is present system block diagram.
In attached drawing：1- exhaust outlets with louver structure；2- arc deflectors；3- end sockets；Heat exchange of the 4- with metal fin
Manage the hot fluid outlet ports of (19)；5- water conservancy diversion tube stents；The hot fluid outlet ports of 6- heat conduction coil pipe (20)；7- reactor bases；8- argons
Gas air inlet；9- breather cheek valves；10- gas distribution grids；The hot fluid inlet of 11- heat conduction coil pipe (20)；12- gravity sensings fill
It sets；13- one-way water outlet valves；The hot fluid inlet of heat exchanger tubes (19) of the 14- with metal fin；15- vibrators；16- circular cylindrical shells
Body；17 internal guide cylinders；18- heat conduction coil pipes；The finned heat exchanger tubes of 19-；20- heat conduction coil pipes；21- blast caps.
Specific implementation mode
The implementation of the present invention is described further below in conjunction with attached drawing, but the implementation and protection of the present invention are without being limited thereto.
By taking the present invention in the high temperature solar power system for generating electricity 10MW applied to year as an example, illustrate its device and stream
Journey：
Referring to attached drawing 1, circular response device in a kind of calcium base thermochemical high temperature fluid bed of the present invention：Described device is mainly wrapped
Include guiding region I, one time resolver II, exothermic reaction zone III, second decomposition area IV, vibrator 15, gravity sensor 12；The dress
It sets and has been sequentially arranged guiding region I, one time resolver II, second decomposition area IV from top to bottom；Guiding region I passes through shell flange and one
Secondary resolver II connects, and a resolver II is connect by entire body flange with second decomposition area IV；Second decomposition area IV is a circle
Tubular structure is arranged in II inside of a resolver；Vibrator 15 is mounted on II outer wall of resolver, gravity sensor 12
Between a resolver II and second decomposition area IV；The guiding region I mainly by exhaust outlet 1 with louver structure,
End socket 3, arc deflector 2 form, and exhaust outlet 1 with louver structure is mounted on 3 both sides of end socket, arc deflector by flange
2 are welded on 3 inside top of end socket, are mainly used for the Ca (OH) that guiding is entrained in reaction zone generation2The fluid-mixing of solid flows to
Resolver II；Resolver II is mainly by circular shell 16, the heat exchanger tube 19 with metal fin, with metal
19 hot fluid inlet 14 of heat exchanger tube and hot fluid outlet ports 4 and one-way water outlet valve 13 of fin form, and carry the heat exchange of metal fin
Pipe 19 is mounted in the loop configuration of a resolver II, carries the heat exchanger tube hot fluid inlet 14 and its hot fluid of metal fin
4 setting of outlet is in circular shell lower end both sides, and the setting of unidirectional drain valve 13 is in circular shell lower end both sides and less than with metal
The heat exchanger tube hot fluid inlet 14 and its hot fluid outlet ports 4 of fin are mainly used for the Ca (OH) generated to exothermic reaction zone III2Into
Row is primary to be decomposed；The exothermic reaction zone III is mainly by guide shell 17 and heat conduction coil pipe 18 referring to seeing that attached drawing 4 forms, guide shell 17
It is connect with circular shell 16 by holder 5, the heat conduction coil pipe 18 is mounted on inside guide shell 17, and it is solid to be mainly used for offer CaO
The space that body is reacted with vapor, and the thermal energy that the exothermic reaction is discharged is by heating the water in heat conduction coil pipe 18 to high temperature
Export is used for subsequent high temperature electricity generation system after vapor.Water conservancy diversion tube stent (see attached drawing 3) is used for the fixation of water conservancy diversion.Described two
Secondary resolver IV is mainly by reactor base 7, heat conduction coil pipe 20, heat conduction coil pipe hot fluid inlet 11 and hot fluid outlet ports 6, blast cap
21, gas distribution grid 10, breather cheek valve 9 and argon inlet mouth 8 form, and breather cheek valve 9 and high pressure argon gas air inlet 8 are distinguished
It is arranged in 7 bottom end both sides of reactor base, blast cap 21 is connect by nut with airflow-distribution board 10, and airflow-distribution board 10 passes through method
Orchid connect with reactor base 7, and heat conduction coil pipe 20 is mounted on 10 upper end of airflow-distribution board in reactor base 7, heat conduction coil pipe
Hot fluid inlet 11 and its setting of hot fluid outlet ports 6 are in 7 both sides of reactor base and heat conduction coil pipe hot fluid inlet 11 less than leading
Hot coil hot fluid outlet ports 6 are mainly used for decomposing incomplete Ca (OH) a resolver II2Solid or exothermic reaction zone
III Ca (OH) fallen2Solid is decomposed.
7 meters of the reaction unit whole height, 0.8 meter of end socket height, 3.2 meters of circular shell height, pedestal round platform part
1.5 meters of vertical height, 1.5 meters of pedestal cylindrical portions；2 meters of circular shell diameter, 1.2 meters of draft tube diameter, pedestal drum diameter
1.2 rice；2 central angle of arc deflector of end socket upper end is 45 °；Fin on heat exchanger tube between guide shell and circular shell with
The angle that vertical direction is formed is 45 °, and fin is 0.2 meter wide, and fin uses single-row arrangement mode, 0.2 meter of each column vertical range, ring
The circle arrangement of shape direction one 12, vertical direction 12 arranges totally；The diameter ratio of guide shell 17 and circular shell is 0.6, inside guide shell
Heat exchanger tube a round coil totally 5 circle is formed at 0.6 meter.
Technological process of the present invention is (see attached drawing 5)：The head vent mouth 1 of reaction unit guiding region I and gas-liquid point
It is connected by pipeline from device, gas-liquid separator gas outlet is connect by pipeline with gas-drying apparatus, and gas-liquid separator water outlet is logical
Piping connect cold fluid feed inlet with phase-change type solar energy heat-storage device, and gas-drying apparatus is connect by pipeline with compressor, pressure
Contracting machine will be stored in by dry argon gas in argon bottle by pumping, and argon bottle is anti-with calcium base thermochemical high temperature fluid bed by pumping
The argon inlet mouth 8 of device is answered to connect；150 DEG C of hot fluids are transported to phase-change type solar energy by solar thermal collection system by pipeline
Vapor is formed for heating water in accumulator, the vapor of formation is transported by pump in steam buffer tank, and surge tank passes through
Pump is connect with the breather cheek valve 9 in reaction unit.It is steamed by the heavy oil of solar thermal collection system heating by pumping transport to overheat
In vapour surge tank, heavy oil surge tank discharge port is fed by the heat exchanger tube hot fluid with metal fin in pipeline and reaction unit
Mouth 14 connects, the heat exchanger tube hot fluid discharge port 4 with metal fin in reaction unit and solar thermal collection system heavy oil feed
Mouth connection.
Scheme implements required equipment component material installation parameter and refers to table 1.
Table 1
| Serial number | Title | Specification or parameter |
| 1 | Arc deflector | 45 ° of central angle |
| 2 | End socket | Height 0.8m, wide face diameter 2m, leptoprosopy diameter 1.4m |
| 3 | 1.2 meters of draft tube diameter | Height 3.2m, 1.2 meters of diameter |
| 4 | Cylindrical housings | Diameter 2m, height 3.2m, wall thickness 8mm |
| 5 | Metal fin | 45 ° of inclination angle, piece wide 0.2m, length of a film 0.19m |
| 6 | Pedestal round platform part | Highly 1.5 meters |
| 7 | Pedestal cylindrical portions | Highly 1.5 meters |
| 8 | Heat exchanger tube (19) | ϕ50×3 |
| 9 | Heat conduction coil pipe (20) | Φ70×3.5 |
| 10 | Vibrator | The MC5 or other similar products provided on the market is provided |
| 11 | Gravity sensor | The 103SR provided on the market is provided13A-8 or other similar products |
| 12 | Cylinder connecting flange | DN2000, PN2.5, material 0Cr17Ni12Mo2 |
| 13 | Heat exchanger tube (19) imports and exports connecting flange | DN50, PN2.5 material 0Cr17Ni12Mo2 |
Thermal energy of the present invention and chemical transformation of energy and release process are the reaction unit in such a way that 8 in parallel.Often
Platform reactor is packed into CaO solid powders (4355.316kg) in the packing layer in second decomposition area IV in advance before starting reaction.
130 DEG C of the vapor (1399.923kg/h) from steam buffer tank is by pumping the breather cheek valve conveyed in reacted device
9 enter in reaction unit, while the high pressure argon gas pressure in argon bottle is 0.8MPa, and flow velocity is 3m/s anti-by positive displacement pump warp
The argon inlet mouth 8 in device is answered to enter in reaction unit together with vapor (1399.923kg/h).Argon gas (3m/s) and water
After steam (1399.923kg/h) mixed airflow is by gas distribution grid 10, the acting in reactor and be evenly distributed of blast cap 21,
The air-flow that the two is formed blows afloat the CaO solid powders in packing layer into exothermic reaction zone III.Vapor in gas and CaO
Solid powder comes into full contact with and CaO (s)+H occurs in exothermic reaction zone III2O(g)-∆H→Ca(OH)2(s) exothermic reaction is put
The heat gone out is mainly used for the thermal-collecting tube 18 inside guide shell 17 and passes to cold fluid in thermal-collecting tube, to form high-temperature hot fluid
It is used for 10MW electricity generation systems.And the Ca (OH) that exothermic reaction generates2Solid (4604.1912kg) is entrained in argon gas and water steams
Enter guiding region I in the mixed airflow of gas.By the guiding function of the arc deflector 2 of end socket 3, into a resolver II
In.The flow velocity of gas when mixed airflow in order to reduce argon gas and vapor enters loop configuration, makes Ca (OH)2Solid with gold
The thermal-collecting tube 19 for belonging to fin comes into full contact with, and part mixed airflow is discharged by exhaust outlet 1 with louver structure in guiding region I.
The portion gas of discharge enters phase-change type thermal storage device for generating by argon gas and vapor gas-liquid separator, liquid by pipeline
New vapor.Gas is dried by argon gas drier, using compressor compresses, is stored in argon bottle, to realize argon
Gas recycles.
Thermal energy is with chemical transformation of energy and storage process：510 DEG C of heavy oil that solar thermal collection system generates
(89.072mol/h) is flowed by pipeline in heavy oil surge tank.It is divided into 8 fluid streams, per share heavy oil stream in the outlet of heavy oil surge tank
Body flow is (11.134mol/h), and the heavy oil of sub-thread heavy oil 1.1134mol/h therein flows to reactor filler layer,
The heavy oil of 10.0206mol/h enters reactor second decomposition area IV by the hot fluid inlet 10 of the heat exchanger tube with metal fin.
By the Ca (OH) for the mixed airflow entrainment that argon gas and vapor form2Solid (41437.7208kg/h) enters second decomposition area IV
Carry out heat exchange, Ca (OH)2Endothermic reaction Ca (OH) occurs for solid sorbent heat2(s)+∆H→CaO(s)+H2O (g) will inhale
The thermal energy storage of receipts is in CaO solids and vapor.For superheated steam in heat exchanger tube after heat exchange, steam passes through heat exchanger tube
Hot fluid outlet ports 4 enter in phase-change type solar energy heat-storage device, for generating new vapor.Oil transfer goes back to solar energy heating system
System recycles.The CaO solids (31358.2752kg/h) that decomposition reaction generates are deposited in gravity sensing under gravity
Above plate 12, when needing CaO solids in putting it into packing layer.The unidirectional water outlet that vapor passes through cylindrical tube lower part
Reaction unit is discharged in valve (13), and flowing into phase-change type thermal storage device by pipeline is used as cold fluid for generating vapor.In guide shell
Ca (OH)2Solid (4604.1912kg/h) is fallen in packing layer under the effect of gravity, is added by the heat exchanger tube 20 in packing layer
Thermal decomposition.Halfway Ca (OH) is decomposed a resolver II2Solid also carries out decomposing for second herein, forms CaO solids,
For subsequent reactions.Oil transfer in heat exchanger tube 20 returns solar thermal collection system and recycles, to complete thermal energy and chemistry
Energy mutually converts and storage process.
Case of the present invention case cited by production procedure of the present invention merely for convenience of description, rather than have to the present invention
The limitation of body implementation can do certain variation for affiliated person skilled in art in above-mentioned requirements, this
In can not the case suitable to the present invention enumerate.It is all the present invention spirit and in principle made by change,
Within equivalent replacement etc. should all belong to the scope of protection of the present invention.
Implementation result is analyzed：This system uses heat chemistry energy storage Ca (OH)2/CaO(s)+H2O systems, raw material is cheap, secondary anti-
It should lack, heat waste is small, and unit mass energy storage density is big.The traditional coal that compares electricity generation system can save 12000~17000 tons every year
Coal, cost-effective about 600~8,000,000 yuan.With compared with power tradition thermal power generation system, solar power system of the present invention
It can lack every year to air discharge 8000kg CO2、90kg SO2、50kg NO x , 600kg dust, it can thus be appreciated that using the present invention
Solar power system environmental pollution is smaller than traditional industry, has preferable economic results in society.
Claims (9)
1. circular response device in a kind of calcium base thermochemical high temperature fluid bed, it is characterised in that including guiding region（Ⅰ）, primary decompose
Area（Ⅱ）, exothermic reaction zone（Ⅲ）, second decomposition area（Ⅳ）, vibrator (15), gravity sensor (12), described device is from upper
It is sequentially arranged guiding region under（Ⅰ）, a resolver（Ⅱ）, second decomposition area（Ⅳ）；Guiding region（Ⅰ）By shell flange with
Resolver（Ⅱ）Connection, a resolver（Ⅱ）Pass through entire body flange and second decomposition area（Ⅳ）Connection；Second decomposition area
（Ⅳ）It is arranged in a resolver for a cylinder-like structure（Ⅱ）Downside；Vibrator (15) is mounted on a resolver（Ⅱ）Outer wall
On, gravity sensor (12) is mounted on a resolver（Ⅱ）With second decomposition area（Ⅳ）Between；Guiding region（Ⅰ）It is mainly used for drawing
It leads entrainment of in exothermic reaction zone（Ⅲ）The Ca (OH) of generation2The fluid-mixing of solid flows to a resolver（Ⅱ）；Primary point
Xie Qu（Ⅱ）It is mainly used for the Ca (OH) generated to exothermic reaction2Solid is once decomposed；Exothermic reaction zone（Ⅲ）It is main to use
It is led by the first heat conduction coil pipe (18) in the space that offer CaO solids are reacted with vapor and by the heat that the exothermic reaction generates
Go out, is used for subsequent high temperature electricity generation system；Second decomposition area（Ⅳ）It is mainly used for a resolver（Ⅱ）It decomposes endless
Complete or exothermic reaction zone（Ⅲ）The Ca (OH) fallen2Solid is decomposed.
2. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1, it is characterised in that lead
Flow area（Ⅰ）Including exhaust outlet with louver structure (1), end socket (3), arc deflector (2)；The row with louver structure
Gas port (1) is mounted on end socket (3) both sides by flange, and arc deflector (2) is welded on end socket (3) inside top, the arc
The central angle of deflector is at 45 °~60 °.
3. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1, it is characterised in that institute
State a resolver（Ⅱ）Including cylindrical shell (16), the heat exchanger tube (19) with metal fin, changing with metal fin
Heat pipe hot fluid inlet (14) and its hot fluid outlet ports (4), unidirectional drain valve (13)；The heat exchanger tube with metal fin
(19) it is mounted on a resolver（Ⅱ）Loop configuration in, carry metal fin heat exchanger tube hot fluid inlet (14) and hot-fluid
Body exports (4) setting in cylindrical shell lower end both sides, and unidirectional drain valve (13) setting is in cylindrical shell lower end both sides and low
In heat exchanger tube hot fluid inlet (14) and its hot fluid outlet ports (4) with metal fin.
4. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1 or 3, feature exist
In a resolver（Ⅱ）In with metal fin heat exchanger tube (19) on metal fin arrangement mode be two layers of wing
Piece is in " people " shape cross-distribution or single layer fin with vertical direction in 45 °~60 ° arrangements；The fin uses stainless steel material.
5. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1, it is characterised in that institute
State exothermic reaction zone（Ⅲ）Including guide shell (17) and the first heat conduction coil pipe (18)；The guide shell (17) by holder (5) with
Cylindrical shell (16) connects, and it is internal that the first heat conduction coil pipe (18) is mounted on guide shell (17).
6. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1, it is characterised in that two
Secondary resolver（Ⅳ）Including reactor base (7), the second heat conduction coil pipe (20), heat conduction coil pipe hot fluid inlet (11) and its hot-fluid
Body exports (6), blast cap (21), airflow-distribution board (10), breather cheek valve (9) and high pressure argon gas air inlet (8)；It is described unidirectionally into
Air valve (9) and high pressure argon gas air inlet (8) are separately positioned on reactor base (7) bottom end both sides；The blast cap (21) passes through spiral shell
Mother connect with airflow-distribution board (10), and airflow-distribution board (10) is connect by flange with reactor base (7)；Second heat conduction
Coil pipe (20) is mounted on airflow-distribution board (10) upper end in reactor base (7)；The heat conduction coil pipe hot fluid inlet (11)
And its hot fluid outlet ports (6) setting is in reactor base (7) both sides and heat conduction coil pipe hot fluid inlet (11) is less than heat conduction coil pipe
Hot fluid outlet ports (6).
7. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1 or 5 or 6, feature
It is in exothermic reaction zone（Ⅲ）And second decomposition area（Ⅳ）In one or more heat exchangers are distributed with, and heat exchanger tube is every 0.6
A round coil is formed at~1.2 meters.
8. circular response device in a kind of calcium base thermochemical high temperature fluid bed according to claim 1 or 3, feature exist
In having the vibrator (15) in cylindrical shell (16) exterior, guide shell (17) or attachment are attached to for reducing calcium hydroxide
In the heat exchanger tube with metal fin（19）On, to prevent the generation of fouling；Gravity sensing is installed in reactor base (7)
CaO solids can be stored in by device (12), the tablet end of gravity sensor (12) so just in guide shell (17) lower end
Between guide shell (17) and cylindrical shell (16).
9. the work side of circular response device in a kind of calcium base thermochemical high temperature fluid bed of claim 1 ~ 8 any one of them
Method, it is characterised in that including exoergic process and thermal energy storage process, the exoergic process is：Vapor enters from breather cheek valve (9)
Second decomposition area（Ⅳ）, high pressure argon gas from high pressure argon gas air inlet (8) enter second decomposition area（Ⅳ）, the mixed airflow of the two will
It is filled in second decomposition area in advance（Ⅳ）CaO solids blow afloat after, in exothermic reaction zone（Ⅲ）CaO (s)+H occurs2O(g)-∆H
→Ca(OH)2(s) exothermic reaction, to convert the chemical energy stored in CaO solids and vapor to high-grade thermal energy, institute
The high-grade heat of releasing is used for subsequent power generation system by the export of the first heat conduction coil pipe (18)；The thermal energy storage process is：It is external
Hot fluid is entered by the hot fluid inlet (14) of the heat exchanger tube (19) with metal fin in the heat exchanger tube (19) with metal fin；
The Ca (OH) that exothermic reaction generates2Solid is through guiding region（Ⅰ）Lead into a resolver（Ⅱ）Divide for the first time
Ca (OH) occurs for solution2(s)+∆H→CaO(s)+H2O (g) endothermic reactions, to convert the thermal energy of hot fluid to CaO solids
It is stored with what the chemical energy in vapor was stablized；
External heat enters the second heat conduction coil pipe in secondary response area by the hot fluid inlet (11) of the second heat conduction coil pipe (20)
(20) in；
A resolver（Ⅱ）Undecomposed complete Ca (OH)2Solid and in guiding region（Ⅰ）A resolver is not entered（Ⅱ）'s
Ca(OH)2In second decomposition area（Ⅳ）Second decomposition is carried out, to complete storage and the release process of thermal energy and chemical energy.
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| CN201610289990.4A CN105771819B (en) | 2016-04-30 | 2016-04-30 | Circular response device and its working method in a kind of calcium base thermochemical high temperature fluid bed |
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| TWI583911B (en) * | 2014-08-07 | 2017-05-21 | 立昌先進科技股份有限公司 | Thermal energy storage facility having functions of heat storage and heat release and use of the same |
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