CN109847459A - A kind of heat chemistry heat reservoir and method using fluid mapper process - Google Patents
A kind of heat chemistry heat reservoir and method using fluid mapper process Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 239000000376 reactant Substances 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000009825 accumulation Methods 0.000 claims abstract description 32
- 238000005243 fluidization Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 69
- 238000009423 ventilation Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 24
- 239000007787 solid Substances 0.000 claims description 18
- 150000003839 salts Chemical class 0.000 claims description 16
- 239000012495 reaction gas Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000002309 gasification Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000008247 solid mixture Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 abstract description 3
- 239000012808 vapor phase Substances 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 229910001853 inorganic hydroxide Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 1
- -1 carbonate compound Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a kind of heat chemistry heat reservoirs and method using fluid mapper process, utilize the method for vapor-phase reactant or heated gaseous mediums fluidisation solid-phase reactant, make thermal chemical reaction during reactant fluidizes, the phenomenon that both reactant can also being avoided to be sintered with enhancing mass and heat transfer in this way, to improve the cycle life of heat chemistry heat reservoir；In addition, heat accumulation process and exothermic process designed by the present invention share fluidized-bed reactor, cyclone separator, reactant hopper and generate the equipment such as silo, it can play the role of reducing cost, improve economy.
Description
Technical field
The invention belongs to energy storage fields, and in particular to a kind of heat chemistry heat reservoir and method using fluid mapper process.
Background technique
Has the characteristics that cleanliness without any pollution and inexhaustible by renewable energy, in recent years renewable energy
Specific gravity in China's energy system increasingly increases, at the same the acquisition of renewable energy in time, spatially and in intensity
It is also more significant that there are serious unbalanced problems.Energy storage can effectively solve energy supply and demand in time, space and intensity
Mismatch problem has the development of support China's renewable energy far-reaching significant.The mode of energy storage is varied, at present
Heat storage is a kind of energy storage mode that is most widely used, cheap and most easily realizing.Traditional heat accumulation mode has sensible heat storage
Technology and latent heat of phase change storing technology, for the storage density of both technologies generally in 100~200kJ/kg, heat storage capacity is lower not
Conducive to scale application.Heat chemistry heat accumulation is high with storage density, heat accumulation energy loss is small, can long term storage, exothermic process temperature
The advantages that degree fluctuation is small, obtained extensive concern in recent years.Heat chemistry heat accumulation utilizes reversible thermal chemical reaction, passes through thermal energy
Energy storage and release are carried out with mutually converting for chemical energy.Heat chemistry adsorbs the storage density of heat-storage technology up to 2000kJ/
Kg or more, energy storage density are about 10~20 times of traditional sensible heat storing technology and latent heat of phase change storing technology.
There are more than 70 kinds of thermal chemical reaction systems at present, typical heat chemistry energy storage system has inorganic hydroxide thermal decomposition,
Mainly Ca (OH)2/CaO+H2O、Mg(OH)2/MgO+H2O, carbonate compound decompose, ammonium salt thermal decomposition, organic matter hydrogenation and
Dehydrogenation reaction etc..With Ca (OH)2/CaO+H2For O, when heat accumulation, solid-state Ca (OH)2It is heated occur dehydration generate CaO and
H2The converting heat of absorption is product CaO and H by O2Chemical energy in O.When heat release, by the H of gas2O importing has the anti-of CaO
It answers in device, CaO and H2O reaction generates Ca (OH)2, while releasing heat.But such thermal chemical reaction system is scarce there are one
Point, i.e. inorganic hydroxide system are easy to appear the phenomenon that reactant sintering, poor so as to cause bed heating conduction in reactor
And reaction speed slows down, this seriously constrains the popularization and application of heat chemistry energy-storage system.
In consideration of it, making heat accumulation the present invention provides a kind of heat chemistry energy-storage system and method using fluid mapper process and putting
Solid and gas in thermal process are in the state of fluidisation, and the mass-and heat-transfer between intensified response object avoids the occurrence of reactant burning
The phenomenon that knot, to improve the cycle life of heat chemistry heat reservoir.
Summary of the invention
The reactant Sintering Problem that it is an object of the invention to solve easily to occur in Conventional thermal thermal energy storage process, provides one
Kind makes heat using the method for gas phase reaction Logistics solid-phase reactant using the heat chemistry heat reservoir and method of fluid mapper process
Chemical reaction is during reactant fluidizes, thus enhancing mass and heat transfer and the phenomenon that avoiding reactant from being sintered.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of heat chemistry heat reservoir using fluid mapper process, including fluidized-bed reactor 1, fluidized-bed reactor 1 it is outer
The heating surface 2 that shell and inner casing surround, the reaction cavity in 1 inner casing of fluidized-bed reactor, with 1 reaction cavity bottom of fluidized-bed reactor
The reactant hopper 4 of portion's connection, the cyclone separator 6 being connected to 1 reaction cavity top of fluidized-bed reactor, with cyclone separator
The generation silo 7 of 6 bottoms connection passes through the afterheat heat exchanger 9 being connected at the top of flue gas pipeline 10 and cyclone separator 6, setting
Ventilation terminal 5 in 1 bottom of fluidized-bed reactor, 9 entrance of afterheat heat exchanger are connected to air；
It further include drum 11 when heat release, 11 feed-water intake of drum is connected to water supply, and 11 feedwater outlet of drum passes through down-comer
3 are connected to 2 bottom of heating surface of fluidized-bed reactors 1, are connected to 11 steam inlet of drum at the top of the heating surface 2 of fluidized-bed reactor 1,
11 steam (vapor) outlet of drum is connected to external supply line all the way, and another way is connected to 5 bottom of ventilation terminal by reaction gas pipeline 12 and enters
Mouthful；9 hot air outlet of afterheat heat exchanger is connected to 5 bottom inlet of ventilation terminal by air pipe line 8；
When heat accumulation process uses steam-heated mode, steam (vapor) outlet is connected to the heating surface 2 of fluidized-bed reactor 1 all the way
Overhead vapor entrance, 2 bottom steam outlet Low Temperature Steam heater 13 of heating surface, another way steam (vapor) outlet are connected to high temperature and steam
Vapour heater 14,9 hot air outlet of afterheat heat exchanger is sequentially communicated Low Temperature Steam heater 13 by air pipe line 8 and high temperature steams
1 reaction cavity of fluidized-bed reactor is connected to by ventilation terminal 5 again after vapour heater 14；
It further include molten salt heater 15,9 hot-air of afterheat heat exchanger goes out when heat accumulation process is by the way of fused salt heating
Mouth is connected to after molten salt heater 15 by air pipe line 8 and is connected to 1 reaction cavity of fluidized-bed reactor by ventilation terminal 5 again；
When heat accumulation process is by the way of air heating, hot air outlet is anti-by the connection fluidized bed of ventilation terminal 5 all the way
1 reaction cavity of device is answered, another way hot air outlet is connected to the 2 top hot air inlet of heating surface of fluidized-bed reactor 1, fluidized bed
2 bottom air exit of heating surface of reactor 1 passes through ventilation terminal 5 again and is connected to 1 reaction cavity of fluidized-bed reactor.
The heat accumulation process, reactant are thermally decomposed in fluidized-bed reactor 1, and the solid particle of generation is by whirlwind point
It is collected from device 6, into generation silo 7；The gas of generation and the mixture of heating air draw from 6 top of cyclone separator
Out, into the treatment process of next step.
The water supply of 11 feed-water intake of drum connection first passes through the preheating for generating material or the flue gas through Cyclone outlet
It is mixed heat after enter back into drum 11.
The working method of the heat chemistry heat reservoir using fluid mapper process, it is anti-in reactant hopper 4 when heat release
Answer composition granule that 1 bottom of fluidized-bed reactor is added；Air enters ventilation terminal after the heating of afterheat heat exchanger 9, through air pipe line 8
5；The reacted gas piping 12 of reaction gas enters ventilation terminal 5；Reaction gas enters after mixing in ventilation terminal 5 with heating air
Fluidized-bed reactor 1 makes solid reaction composition granule in fluidized state, heat gas, reaction gas and reacts the mixing between solid
Sufficiently with heat transfer, and exothermic reaction occurs in fluidized-bed reactor 1；Gas-solid mixing after being reacted in fluidized-bed reactor 1
Object enters cyclone separator 6, and solid product is separated by cyclone separator 6 into generation silo 7, cyclone separator 6
Not sufficiently reactive solid reactant is sent into fluidized-bed reactor 1 and is recycled；Gas by 6 top of cyclone separator from
It opens, enters in afterheat heat exchanger 9 through flue gas pipeline 10 and heat is released to air, the gas after heat release enters subsequent deduster
Facility；
When heat release, water supply enters drum 11, along down-comer 3 enter fluidized-bed reactor 1 heating surface 2, water by
Receive the heat of reactant reaction release in hot face 2 and evaporate gasification, the steam water interface come out from heating surface 2 enters drum
11, steam is drawn from the top of drum 11, and a part of steam goes to participate in practical application, the reacted gas piping of another part steam
12 enter ventilation terminal 5, participate in reacting subsequently into fluidized-bed reactor 1；
When heat accumulation process uses steam-heated mode, steam a part of heating enters fluidized-bed reactor 1
In heating surface 2, conducted heat by heated towards reactant, from heating surface 2 come out after heat medium enter Low Temperature Steam heater
Air is heated in 13；Another part enters high-temperature steam heater 14 and heats air；Air initially enters 9 interior suction of afterheat heat exchanger
Then heat sequentially enters heating of absorbing heat in Low Temperature Steam heater 13 and high-temperature steam heater 14, it is anti-to finally enter fluidized bed
It answers and is fluidized in device 1 and heat solid reactant；
When heat accumulation process is by the way of fused salt heating, air initially enters to absorb heat in afterheat heat exchanger 9, enters back into molten
It absorbs heat and heats up in salt heater 15, finally enter in fluidized-bed reactor 1 and play fluidisation and heat effect；
When heat accumulation process is by the way of air heating, heating air directly passes through ventilation terminal 5 into fluidized-bed reaction
Device 1；Or the heating surface 2 for dividing one to enter fluidized-bed reactor 1, hot-fluid is passed to by the radiation heat transfer of heating surface by reaction
Object, out after air pass through again ventilation terminal 5 enter fluidized-bed reactor 1.
The invention has the following advantages: a kind of heat chemistry heat reservoir and method using fluid mapper process, utilizes gas
The method of phase reaction object and heated gaseous mediums fluidisation solid-phase reactant sends out thermal chemical reaction during reactant fluidisation
The phenomenon that giving birth to, both reactant can also being avoided to be sintered with enhancing mass and heat transfer in this way, to improve heat chemistry heat accumulation system
The cycle life of system.In addition, heat accumulation process and exothermic process designed by the present invention share fluidized-bed reactor, cyclonic separation
The equipment such as device, reactant hopper and generation silo can play the role of reducing cost, improve economy.
Detailed description of the invention
Fig. 1 is the heat chemistry heat reservoir schematic diagram of exothermic process.
Fig. 2 is the heat chemistry heat reservoir schematic diagram that heat accumulation process uses steam heating method.
Fig. 3 is the heat chemistry heat reservoir schematic diagram that heat accumulation process uses fused salt heating method.
Fig. 4 is the heat chemistry heat reservoir schematic diagram that heat accumulation process uses air heating method.
Wherein, 1 it is fluidized-bed reactor, 2 be heating surface, 3 be down-comer, 4 be reactant hopper, 5 be ventilation terminal, 6 is
Cyclone separator, 7 be generate silo, 8 be air pipe line, 9 be afterheat heat exchanger, 10 be flue gas pipeline, 11 be drum, 12 be
Reaction gas pipeline, 13 be Low Temperature Steam heater, 14 be high-temperature steam heater, 15 be molten salt heater.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of heat chemistry heat reservoir and method using fluid mapper process described in the present embodiment, heat accumulation and
Reactant in exothermic process is in fluidized state.Fluidized-bed reactor 1, reactant are provided in this function system to realize
Hopper 4, cyclone separator 6 and generation silo 7.
When heat release, 1 bottom of fluidized-bed reactor is added in the reaction composition granule in reactant hopper 4；Air exchanges heat through waste heat
After device 9 heats, ventilation terminal 5 is entered by air pipe line 8；The reacted gas piping 12 of reaction gas enters ventilation terminal 5.Reaction gas
Body mixes laggard fluidized bed reactor 1 with heating air in ventilation terminal 5, makes solid reaction composition granule in fluidized state, adds
It hot gas, reaction gas and reacts mixing between solid and heat transfer sufficiently, and exothermic reaction occurs in fluidized-bed reactor 1.
Gas-solid mixture after reacting in fluidized-bed reactor 1 enters cyclone separator 6, and solid product is divided by cyclone separator 6
From getting off to enter to generate silo 7, not sufficiently reactive solid reactant can also be sent into fluidized-bed reactor by cyclone separator 6
It is recycled in 1；Gas is left by 6 top of cyclone separator, enters in afterheat heat exchanger 9 through flue gas pipeline 10 and heat is discharged
To air, the gas after heat release enters the facilities such as subsequent deduster.
Reaction vapor is generated by water evaporation.Water supply enters drum 11, along down-comer 3 enter fluidized-bed reactor 1 by
Hot face 2, water receive the heat of reactant reaction release in heating surface 2 and evaporate gasification, the steam-water mixing come out from heating surface 2
Object enters drum 11, and steam is drawn from the top of drum 11, and a part of steam goes to participate in practical application, and another part steam is through anti-
It answers gas piping 12 to enter ventilation terminal 5, participates in reacting subsequently into fluidized-bed reactor 1.
As shown in Fig. 2, a kind of heat chemistry heat reservoir and method using fluid mapper process, heat accumulation described in the present embodiment
Process uses steam-heated mode.Steam a part of heating enters in the heating surface 2 of fluidized-bed reactor 1, by by
Heat is conducted heat towards reactant, from heating surface 2 come out after heat medium enter in Low Temperature Steam heater 13 and heat air；It is another
Part enters high-temperature steam heater 14 and heats air.Air initially enters heat absorption in afterheat heat exchanger 9, then sequentially enters low
It absorbs heat and heats up in warm steam heater 13 and high-temperature steam heater 14, finally enter and fluidize and heat in fluidized-bed reactor 1
Solid reactant.
As shown in figure 3, a kind of heat chemistry heat reservoir and method using fluid mapper process, heat accumulation described in the present embodiment
Process is by the way of fused salt heating.Air initially enters to absorb heat in afterheat heat exchanger 9, enters back into molten salt heater 15 and absorbs heat
Heating, finally enters in fluidized-bed reactor 1 and plays fluidisation and heat effect.
As shown in figure 4, a kind of heat chemistry heat reservoir and method using fluid mapper process, heat accumulation described in the present embodiment
Process is by the way of air heating.Heating air directly can enter fluidized-bed reactor 1 by ventilation terminal 5；One can also be divided
Hot-fluid is passed to by the radiation heat transfer of heating surface by reactant into heating surface 2, out after air pass through again ventilation terminal 5 into
Fluidized bed reactor 1.
As shown in Figure 2, Figure 3 and Figure 4, reactant is thermally decomposed in fluidized-bed reactor 1, and the solid particle of generation is revolved
Wind separator 6 is collected, into generation silo 7；The gas of generation and the mixture of heating air are from cyclone separator
Portion is drawn, into the treatment process of next step.
As the preferred embodiment of the present invention, the water supply of 11 feed-water intake of drum connection, which can first pass through, generates the pre- of material
Heat enters back into drum 11 after the mixed heat of the flue gas of Cyclone outlet.
Specific work process of the invention are as follows:
In order to clearly demonstrate specific work process of the invention, system is hereafter thermally decomposed with typical inorganic hydroxide
For, it may be assumed that
When heat release, the reactant in reactant hopper 4 is CaO, and CaO is added in fluidized-bed reactor 1, reaction gas
H2O and fluidizing agent air enter in fluidized-bed reactor 1 from ventilation terminal 5 to be played the role of fluidizing CaO particle, at the same time H2O
It is adequately mixed and is reacted in fluid mapper process with CaO, generated Ca (OH)2, and release heat.The Ca (OH) of generation2Particle
It is separated in cyclone separator 6, into generation silo 7.Remaining gas is drawn from the top of cyclone separator 6,
Through waste heat recycling by entrance next step treatment process.The heat of reaction release is fluidized the device of working medium in a reactor heating surface 2
It absorbs, therefore water becomes steam water interface, subsequently into drum 11, the steam a part separated draws application, another portion
It is allocated as being passed through in fluidized-bed reactor 1 for reaction gas.The air for playing fluidization, initially enters afterheat heat exchanger 9 and absorbs heat
Fluidized-bed reactor 1 is entered back into after amount.
When heat accumulation, the Ca (OH) of the reactant in reactant hopper 72, Ca (OH)2Particle is flowed in fluidized-bed reactor 1
Change and decomposed after heating and generate CaO particle and vapor, realizes conversion of the heat to chemical energy.The CaO particle of generation is revolving
It is separated in wind separator 6, into generation silo 7.Remaining gas enters back into down after entering afterheat heat exchanger heat release
One procedure.Heat accumulation process can use different heat mediums, such as vapor, fused salt, hot-air, no matter which kind of side be used
Formula enters fluidized-bed reactor fluidisation and heating Ca (OH)2The gas of particle must be air or other inert gases, fused salt and
Vapor can only transfer heat to reaction composition granule by indirect mode.
Claims (4)
1. a kind of heat chemistry heat reservoir using fluid mapper process, it is characterised in that；Including fluidized-bed reactor (1), fluidized bed
The heating surface (2) that the shell of reactor (1) and inner casing surround, the reaction cavity in fluidized-bed reactor (1) inner casing, with fluidized bed
The reactant hopper (4) of reactor (1) reaction cavity bottom connection, is connected to fluidized-bed reactor (1) reaction cavity top
Cyclone separator (6), the generation silo (7) being connected to cyclone separator (6) bottom pass through flue gas pipeline (10) and whirlwind point
From the afterheat heat exchanger (9) being connected at the top of device (6), the ventilation terminal (5) in fluidized-bed reactor (1) bottom, waste heat heat exchange are set
Device (9) entrance is connected to air；
It further include drum (11) when heat release, drum (11) feed-water intake is connected to water supply, and drum (11) feedwater outlet passes through decline
Heating surface (2) bottom of (3) connection fluidized-bed reactor (1) is managed, is connected to vapour at the top of the heating surface (2) of fluidized-bed reactor (1)
(11) steam inlet is wrapped, drum (11) steam (vapor) outlet is connected to external supply line all the way, and another way passes through reaction gas pipeline
(12) it is connected to ventilation terminal (5) bottom inlet；Afterheat heat exchanger (9) hot air outlet passes through air pipe line (8) connection ventilation terminal (5)
Bottom inlet；
When heat accumulation process uses steam-heated mode, steam (vapor) outlet is connected to the heating surface (2) of fluidized-bed reactor (1) all the way
Overhead vapor entrance, heating surface (2) bottom steam outlet Low Temperature Steam heater (13), the connection of another way steam (vapor) outlet are high
Warm steam heater (14), afterheat heat exchanger (9) hot air outlet are sequentially communicated Low Temperature Steam heater by air pipe line (8)
(13) be connected to fluidized-bed reactor (1) reaction cavity by ventilation terminal (5) again after high-temperature steam heater (14)；
It further include molten salt heater (15), afterheat heat exchanger (9) hot-air goes out when heat accumulation process is by the way of fused salt heating
Mouth is by being connected to fluidized-bed reactor (1) reaction chamber by ventilation terminal (5) again after air pipe line (8) connection molten salt heater (15)
Body；
When heat accumulation process is by the way of air heating, hot air outlet is connected to fluidized-bed reaction by ventilation terminal (5) all the way
Device (1) reaction cavity, another way hot air outlet are connected to hot air inlet at the top of the heating surface (2) of fluidized-bed reactor (1), stream
Heating surface (2) bottom air exit of fluidized bed reactor (1) passes through ventilation terminal (5) connection fluidized-bed reactor (1) reaction chamber again
Body.
2. the heat chemistry heat reservoir according to claim 1 using fluid mapper process, it is characterised in that；The heat accumulation mistake
Journey, reactant are thermally decomposed in fluidized-bed reactor (1), and the solid particle of generation is collected by cyclone separator (6), into
Enter to generate silo (7)；The gas of generation and the mixture of heating air are drawn from cyclone separator (6) top, and entrance is next
The treatment process of step.
3. the heat chemistry heat reservoir according to claim 1 using fluid mapper process, it is characterised in that；Drum (11) water supply
The water supply of entrance connection first passes through the preheating for generating material or enters back into drum after the mixed heat of the flue gas of Cyclone outlet
(11)。
4. the working method of the described in any item heat chemistry heat reservoirs using fluid mapper process of claims 1 to 3, feature exist
In: when heat release, fluidized-bed reactor (1) bottom is added in the reaction composition granule in reactant hopper (4)；Air is through afterheat heat exchanger
(9) after heating, enter ventilation terminal (5) by air pipe line (8)；The reacted gas piping of reaction gas (12) enters ventilation terminal
(5)；Reaction gas mixes laggard fluidized bed reactor (1) in ventilation terminal (5) with heating air, makes solid reaction composition granule
In fluidized state, heat gas, reaction gas and mixing between solid and heat transfer are reacted sufficiently, and in fluidized-bed reactor (1)
Interior generation exothermic reaction；Gas-solid mixture in fluidized-bed reactor (1) after reaction enters cyclone separator (6), and solid is raw
It is separated by cyclone separator (6) into silo (7) are generated at object, cyclone separator (6) is by not sufficiently reactive solid
Reactant is sent into fluidized-bed reactor (1) and is recycled；Gas is left by cyclone separator (6) top, through flue gas pipeline
(10) enter in afterheat heat exchanger (9) and heat is released to air, the gas after heat release enters subsequent deduster facility；
In exothermic process, when reaction gas is vapor, water supply enters drum (11), enters fluidized bed along down-comer (3)
The heating surface (2) of reactor (1), water receive the heat of reactant reaction release in the heating surface (2) and evaporate gasification, from being heated
The steam water interface that face (2) comes out enters drum (11), and steam is drawn from the top of drum (11), and a part of steam goes to participate in real
Border application, the reacted gas piping of another part steam (12) enter ventilation terminal (5), join subsequently into fluidized-bed reactor (1)
With react；
When heat accumulation process use steam-heated mode when, steam a part of heating enter fluidized-bed reactor (1) by
It in hot face (2), is conducted heat by heated towards reactant, the heat medium after coming out from heating surface (2) enters Low Temperature Steam heating
Air is heated in device (13)；Another part enters high-temperature steam heater (14) heating air；Air initially enters waste heat heat exchange
Heat absorption in device (9) then sequentially enters heat absorption heating in Low Temperature Steam heater (13) and high-temperature steam heater (14), finally
It is fluidized in into fluidized-bed reactor (1) and heats solid reactant；
When heat accumulation process is by the way of fused salt heating, air initially enters heat absorption in afterheat heat exchanger (9), enters back into fused salt
Heat absorption heating in heater (15), finally enters in fluidized-bed reactor (1) and plays fluidisation and heat effect；
When heat accumulation process is by the way of air heating, heating air directly passes through ventilation terminal (5) into fluidized-bed reactor
(1)；Or the heating surface (2) for dividing one to enter fluidized-bed reactor (1), hot-fluid is passed to instead by the radiation heat transfer of heating surface
Answer object, out after air pass through ventilation terminal (5) again into fluidized-bed reactor (1).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253920A (en) * | 2022-05-17 | 2022-11-01 | 浙江可胜技术股份有限公司 | Salt system is melted to fused salt |
| CN115869864A (en) * | 2022-12-27 | 2023-03-31 | 兰州理工大学 | Production system and method of anhydrous aluminum fluoride |
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| CN115869864A (en) * | 2022-12-27 | 2023-03-31 | 兰州理工大学 | Production system and method of anhydrous aluminum fluoride |
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