WO2014026559A1 - 一种太阳能储热装置 - Google Patents
一种太阳能储热装置 Download PDFInfo
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- WO2014026559A1 WO2014026559A1 PCT/CN2013/081003 CN2013081003W WO2014026559A1 WO 2014026559 A1 WO2014026559 A1 WO 2014026559A1 CN 2013081003 W CN2013081003 W CN 2013081003W WO 2014026559 A1 WO2014026559 A1 WO 2014026559A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat storage
- heat
- outlet
- channel
- inlet
- Prior art date
Links
- 238000005338 heat storage Methods 0.000 title claims abstract description 394
- 238000012546 transfer Methods 0.000 claims abstract description 69
- 238000003860 storage Methods 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims description 34
- 239000011449 brick Substances 0.000 claims description 31
- 238000009423 ventilation Methods 0.000 claims description 28
- 238000005192 partition Methods 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 11
- 239000011464 hollow brick Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract 1
- 238000004146 energy storage Methods 0.000 description 5
- 239000011232 storage material Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000013028 medium composition Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
- F28F7/02—Blocks traversed by passages for heat-exchange media
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Definitions
- the invention belongs to the field of solar heat storage systems, and in particular relates to a heat storage system for solar power generation.
- solar energy is the most widely distributed and the easiest to obtain.
- solar energy is subject to the influence of regular changes such as geography, day and night and seasons, as well as random factors such as cloudy and cloudy clouds, and energy exhibits instability and discontinuity.
- it is necessary to store solar energy in the heat storage device and release it when the solar energy is insufficient to meet the needs of continuous and stable supply for production and daily use.
- the research methods of solar energy research at home and abroad mainly focus on the selection of heat storage materials and the choice of heat storage methods.
- solid materials have become an ideal choice for heat storage materials due to their stable performance and low cost.
- solid heat storage materials generally have a low thermal conductivity, which is not conducive to heat storage and heat release.
- the heat storage efficiency of the system depends on the optimal design of the heat storage system structure.
- CN102032823A discloses a heat storage system comprising a plurality of flat type heat storage modules, wherein a plurality of heat storage modules are stacked in parallel and insulated from each other.
- the heat storage module has a pipe for the heat exchange fluid to flow, and the space between the pipe and the heat storage module is filled with a solid heat storage medium.
- Each of the heat storage modules has an inlet pipe and an outlet pipe of a heat exchange fluid that communicates with the pipes in the module.
- the inlet and outlet pipes of the heat exchange fluid of all adjacent heat storage modules are connected in series to form a heat storage system arranged in series.
- the heat storage module realizes rapid heat storage and heat release of the solid heat storage medium by arranging a multi-layer distributed and counter-flowing fluid pipeline.
- the temperature distribution between the heat storage modules of the heat storage system is not uniform; the temperature of the first stage heat storage module closest to the inlet pipe It is much higher than the temperature of the first-stage heat storage module closest to the outlet pipe. In this way, the heat storage system reaches a standard heat storage temperature for a long time, and the heat storage system has a low heat storage efficiency.
- the technical problem to be solved by the present invention is that the temperature imbalance between the heat storage units of the existing solar heat storage system leads to a low heat storage efficiency of the heat storage system, thereby providing a high temperature storage efficiency capable of balancing the internal heat storage modules of the heat storage system.
- Solar heat storage system is a high temperature storage efficiency capable of balancing the internal heat storage modules of the heat storage system.
- the present invention provides a solar thermal storage system including: at least one thermal storage reactor; the thermal storage reactor is connected to the main pipeline through an inlet and an outlet; and the thermal storage reactor includes an insulated thermal storage chamber And at least one heat storage unit disposed inside the heat storage chamber, a part of the heat storage unit is connected to the inlet, and a part of the same or another heat storage unit is connected to the outlet; a working medium channel is disposed inside, the hot working medium flows from the main pipeline into the hot working medium passage of the heat storage unit through the inlet, flows through the heat storage pile, and flows back to the main pipeline through the outlet Forming a main heat transfer channel of the thermal medium; the heat storage chamber is further provided with an auxiliary heat transfer channel for balancing heat between the heat storage units, and the high temperature heat storage unit passes the auxiliary heat transfer channel to heat The working heat is transferred to the heat storage unit at a low temperature.
- the heat storage unit is composed of at least one heat storage module; the hot working medium channel is formed on a surface or an inner portion of the heat storage module.
- the heat storage module is formed with at least one main channel and at least one auxiliary channel, and an angle is formed between the main channel and the auxiliary channel.
- the heat storage chamber is provided with at least one row of the heat storage unit corresponding to the inlet and the outlet position, and an end of the heat storage unit remote from the inlet and the outlet and an inner wall of a rear end of the heat storage chamber a main passage gap is disposed between the heat storage unit and the inner wall of the left and right and/or upper and lower ends of the heat storage chamber;
- the hot working medium flows into the main passage of a row of heat storage units that communicate with the inlet through the inlet, and after passing through the gap of the main passage, flows into a row of the heat storage unit that communicates with the outlet. Flowing the main passage to the outlet to form the main heat transfer passage;
- the thermal medium inside the heat storage chamber flows through the auxiliary passage in the auxiliary passage gap to form the auxiliary heat transfer passage.
- a partition separating the auxiliary heat transfer passages is disposed in the auxiliary passage gap, and the auxiliary heat transfer passages are formed on both sides of the partition.
- the heat storage module is formed with at least one layer of the hot working fluid channel disposed in parallel with each other.
- Two heat storage units are disposed in the heat storage chamber corresponding to the inlet and the outlet position, between an end of the heat storage unit remote from the inlet and the outlet and an inner wall of a rear end of the heat storage chamber Providing a main passage gap; an auxiliary passage gap is disposed between adjacent ones of the heat storage units of each row; the hot working medium flows into the row of heat storage units connected to the inlet through the inlet, and passes through the main After the channel gap, a row of the heat storage unit that communicates with the outlet flows to the outlet to form the main heat transfer passage; and a part of the thermal medium that flows out of the heat storage unit of the inlet row passes through the The auxiliary channel gap flows directly into the heat storage unit of the outlet row to form the auxiliary heat transfer channel.
- the wall of the hot working fluid channel is formed with a corrugated groove or a spiral groove.
- the heat storage module includes: a hollow brick having a longitudinal through hole; and a heat dissipation pipe disposed inside the hollow brick through hole, which is horizontally and vertically staggered and connected to each other; and a bulk heat storage medium is disposed between the hollow brick and the heat dissipation pipe .
- the heat storage unit is composed of a plurality of heat storage pipes that are mutually angled and a bulk heat storage medium disposed between the heat storage pipes.
- a heat dissipation hole is disposed on a pipe wall of the heat storage pipe, and an outer portion of the heat storage pipe is wrapped by a high temperature resistant gas permeable material, and a heat storage medium between the heat storage pipes is sand stone.
- the heat storage chamber is provided with a plurality of longitudinally and vertically vertically disposed heat storage pipes corresponding to the inlet and the outlet position, and a bulk heat storage medium disposed between the heat storage pipes, in the heat storage pipe a plurality of stacked ventilation bricks are disposed between the inner wall of the heat storage chamber, and the ventilation bricks are blocks having through holes in a plurality of directions;
- the hot working medium flows into the heat storage pipe communicating with the inlet through the inlet, and the ventilation brick between the end of the heat storage pipe and the inner wall of the rear end of the heat storage chamber is reversed, and flows into the communication.
- a row of the heat storage pipe of the outlet flows to the outlet to form the main heat transfer passage;
- the thermal medium inside the heat storage chamber is circulated between the heat storage duct, the bulk heat storage medium, and the ventilation bricks between the left and right sides and/or the upper and lower ends of the heat storage chamber to form the auxiliary Heat transfer channel.
- the heat storage conduit is provided with a valve near the outlet location.
- the heat storage unit includes at least one row of heat storage modules and a bulk heat storage medium disposed between the heat storage modules, and the surface of the heat storage module is formed with an angle and communicates with each other. Working channel.
- the heat storage chamber is provided with at least one row of the heat storage module corresponding to the inlet and the outlet position, and a bulk heat storage medium disposed between the heat storage modules, wherein the heat storage pipe and the heat storage pipe Between the inner walls of the heat storage chamber, a plurality of stacked ventilation bricks are disposed, and the ventilation bricks are blocks having through holes in a plurality of directions;
- the hot working medium flows into the hot working medium passage in the lateral direction of the heat storage module through the inlet, and the ventilation brick is exchanged between the end of the heat storage pipe and the inner wall of the rear end of the heat storage chamber. Going backward, flowing into the horizontal hot working medium channel in a row of the heat storage module that communicates with the outlet to form the main heat transfer channel;
- the hot working medium inside the heat storage chamber passes through the hot working medium passage in the longitudinal direction of the heat storage module and between the left and right and/or upper and lower inner walls of the heat storage pipe and the heat storage chamber Circulation between ventilation bricks,
- the auxiliary heat transfer passage is formed.
- the main passage gap and/or the auxiliary passage gap are provided with ventilation bricks that are open in at least two directions.
- An auxiliary heat transfer power device is disposed in the auxiliary passage gap, and the enhanced heat transfer power device is a fan or a fan.
- the heat storage stacks are connected in parallel, and a front end of the inlet of the heat storage stack is provided with an on-off valve.
- the solar heat storage system of the present invention adds an auxiliary heat transfer passage in the heat storage chamber of the heat storage stack, which can balance the heat between the heat storage units in the heat storage chamber to make the heat storage unit having the highest heat.
- the heat is transferred to the first-stage heat storage unit with the lowest heat as soon as possible.
- the thermal storage unit of the thermal storage reactor is composed of a plurality of thermal storage modules, which has low production cost and high heat storage efficiency; and the heat storage module has a hole wall formed by a spiral
- the hot working medium channel of the trough or the corrugated trough increases the heat exchange area of the heat storage module, so that the heat exchange efficiency of the heat storage system is higher.
- the heat storage chamber of the heat storage stack of the present invention is provided with a partition partitioning the auxiliary heat transfer passages, and the two sides of the partition plate respectively form independent auxiliary heat transfer passages.
- a forced heat transfer device is arranged on each side, and the independent auxiliary heat transfer channel can better conduct heat, and the temperature between the heat storage units can reach a balanced temperature faster.
- FIG. 1 is a schematic structural view of a solar heat storage system according to Embodiment 1 of the present invention.
- FIG. 2 is a perspective view of the heat storage unit unit in Embodiment 1;
- Figure 3 is a perspective view of the heat storage module of Embodiment 1; 4 is a perspective view of another heat storage module;
- FIG. 5 is a schematic structural view of a solar energy storage system according to Embodiment 4 of the present invention.
- FIG. 6 is a perspective view of the heat storage unit unit in Embodiment 4.
- FIG. 7 is a perspective view of the heat storage module of Embodiment 4.
- FIG. 8 is a schematic structural view of a solar energy storage system according to Embodiment 5 of the present invention.
- FIG. 9 is a schematic structural view of a solar energy storage system according to Embodiment 6 of the present invention.
- FIG 10 is a schematic structural view of a solar energy storage system according to Embodiment 7 of the present invention.
- FIG 11 is a perspective view of another heat storage module of the present invention.
- 1-total pipeline, 2-reservoir, 3-switch valve 21-heat storage unit, 211-heat storage module, 212-therm working channel, 213-main channel, 214-auxiliary channel, 215-heat storage pipe , 216-heat vent, 217-hollow brick, 218- heat pipe, 22-inlet, 23-outlet, 24-heat storage, 25-enhanced heat transfer power unit, 26-main channel clearance, 27-auxiliary channel clearance, 28 - partition, 29-ventilated brick, 271-closed passage, 231-flow valve.
- a solar thermal storage system of the present invention which includes a thermal storage reactor 2; the thermal storage reactor 2 is connected to the main pipeline 1 through an inlet 22 and an outlet 23; the thermal storage reactor 2 includes an adiabatic thermal storage chamber And a heat storage unit 21 disposed in the heat storage chamber 24, in the embodiment, two heat storage units 21 are disposed in the heat storage chamber 24 corresponding to the inlet 22 and the outlet 23, a main passage gap 26 is provided between an end of the heat storage unit 21 remote from the inlet 22 and the outlet 23 and an inner wall of the rear end of the heat storage chamber 24; adjacent to each of the heat storage units 21 of each row An auxiliary passage gap 27 is provided; the hot working medium flows into the row of heat storage units 21 communicating with the inlet 22 through the inlet 22, and passes through the main After the channel gap 26, a row of the heat storage unit 21 communicating with the outlet 23 flows to the outlet 23 to form a main heat transfer passage; a portion of the heat storage unit 21 of the inlet row of the heat storage unit 21 flows out The mass flows directly into the
- the heat storage unit 21 is a rectangular parallelepiped unit in which a plurality of heat storage modules 211 are stacked; wherein, as shown in FIG. 3, the heat storage module 211 is formed with a plurality of layers arranged in parallel with each other.
- the hot working fluid channel 212 is formed with a semi-circular groove as the hot working fluid channel 212 on the upper and lower surfaces of the heat storage module 211. In order to increase the heat exchange area of the heat storage module, a spiral groove is formed in the hole wall of the hot working fluid channel 212.
- An enhanced heat transfer power unit 25 is disposed in the auxiliary passage gap 27 in the direction from the inlet 22 to the outlet 23.
- the enhanced heat transfer power unit 25 in this embodiment is a fan.
- a through hole is formed in the heat storage unit 211 as the hot working medium passage 212.
- the wall of the hot working fluid passage 212 is formed with a corrugated groove.
- the embodiment is basically the same as the structure of the first embodiment, and the difference is that the heat storage unit 21 is composed of a plurality of heat storage pipes 215 which are alternately arranged and communicated with each other, and a bulk storage disposed between the heat storage pipes 215. Heat medium composition.
- a plurality of stacked ventilation bricks 29 are disposed between the main passage gap 26 and the auxiliary passage gap 27, and the ventilation bricks 29 are blocks provided with through holes in four directions.
- the embodiment is basically the same as the structure of the first embodiment, and the difference is that the heat storage unit 21 includes a row of heat storage modules 211 and a bulk heat storage medium disposed on two sides of the heat storage module 211.
- the heat storage medium is sandstone.
- the surface or the inside of the heat storage module 211 is formed with a horizontal and vertical mutual
- the hot working fluid channel 212 is connected.
- a plurality of stacked ventilation bricks 29 are disposed between the main passage gap 26 and the auxiliary passage gap 27, and the ventilation bricks 29 are blocks provided with through holes in four directions.
- the thermal storage system comprising two thermal storage stacks 2 connected in parallel, wherein the thermal storage reactor 2 is connected to the main pipeline 1 through an inlet 22 and an outlet 23
- the front end of the inlet 22 of each of the thermal storage stacks 2 is provided with an on-off valve 3;
- the thermal storage stack 2 includes an adiabatic thermal storage chamber 24 and a heat storage unit 21 disposed inside the thermal storage chamber 24, Two rows of the heat storage unit 21 are disposed in the heat storage chamber 24 corresponding to the inlet 22 and the outlet 23, and the end of the heat storage unit 21 away from the inlet 22 and the outlet 23 is
- a main passage gap 26 is disposed between the inner walls of the rear end of the heat storage chamber 24; an auxiliary passage gap 27 is disposed between the heat storage unit 21 and the inner walls of the left and right ends of the heat storage chamber 24.
- the heat storage unit 21 is a rectangular parallelepiped unit in which a plurality of heat storage modules 211 are stacked; wherein, as shown in FIG. 7 , the heat storage module 2 is formed with a plurality of layers arranged perpendicular to each other. Main channel 213 and the auxiliary channel 214.
- восем ⁇ of the heat storage units 21 are disposed in the heat storage chamber 24 of one of the heat storage stacks 2, and the auxiliary heat transfer channels are separated in the auxiliary passage gaps 27.
- the partition plate 28, the two sides of the partition plate 28 respectively form independent auxiliary heat transfer channels.
- the partition plate 28 is disposed between the four heat storage units 21 proximate the inlet 22 and the outlet 23 and the four heat storage units 21 remote from the inlet 22 and the outlet 23, separated by
- the enhanced heat transfer power device 25 is disposed in each of the auxiliary heat transfer passages on both sides of the plate.
- the enhanced heat transfer power unit 25 is a fan.
- the hot working medium flows into the main passage 212 of a row of heat storage units 21 communicating with the inlet 22 through the inlet 22, passes through the main passage gap 26, and is connected.
- the main passage 212 of the heat storage unit 21 of the row of the outlet 23 flows to the outlet 23, Forming the main heat transfer passage; the thermal medium inside the heat storage chamber 24 on both sides of the partition plate 28 passes through the auxiliary passage 214 in the auxiliary passage gap 27 under the enhanced heat transfer of the fan
- the inner circulation forms the auxiliary heat transfer passage.
- Eight other heat storage units 21 are also disposed in the heat storage chamber 24 of the other heat storage stack 2, and the auxiliary heat transfer passages are disposed in the auxiliary passage gap 27 on the side of the outlet 23 a partitioning partition 28, the partitioning plate 28 is located in the middle of the auxiliary passage gap 27, and has two heat storage units 21 on two sides thereof; the inlet 22 is on the side of the auxiliary passage gap 27 A closed passage 271 is provided which surrounds the two heat storage units 21, the closed passage 271 surrounds the two intermediate heat storage units 21, and the enhanced passage is arranged in the auxiliary passage gap 27 on the inlet side.
- the thermodynamic device 25, the enhanced heat transfer power device 25 is a wind pump.
- the hot working medium flows into the main passage 212 of a row of heat storage units 21 communicating with the inlet 22 through the inlet 22, passes through the main passage gap 26, and is connected.
- the main passage 212 of the heat storage unit 21 of the outlet 23 flows to the outlet 23 to form the main heat transfer passage; the thermal medium inside the heat storage chamber 24 is in the air pump
- the auxiliary heat transfer channel is formed by the auxiliary passage 214 flowing through the auxiliary passage gap 27 under the enhanced heat transfer.
- the thermal storage system includes a thermal storage reactor 2 including an adiabatic thermal storage chamber 24 and a thermal storage chamber 24 disposed therein.
- the two heat storage units 21 in the interior, the heat storage unit 21 of the present embodiment are the same as those in the second embodiment.
- One of the heat storage units 21 communicates with the inlet 22, and the other of the heat storage units 21 communicates with the outlet 23; the interior of the heat storage unit 21 is provided with a thermal medium passage 212, and the thermal medium is provided by The total line 1 flows into the hot working medium passage 212 of the heat storage unit 21 through the inlet 22, flows through the entire heat storage pile, and flows back to the main line 1 through the outlet 23 to form the Main heat transfer channel of hot working fluid;
- the heat storage chamber 24 is further provided with an auxiliary heat transfer channel for balancing the heat between the heat storage units 21, and the high temperature heat storage unit 21 passes the heat of the hot work medium to the low temperature through the auxiliary heat transfer channel.
- the heat storage unit 21 is described.
- a main channel gap 26 is provided between an end of the heat storage unit 21 remote from the inlet 22 and the outlet 23 and an inner wall of the rear end of the heat storage chamber 24; the heat storage unit 21 and the An auxiliary passage gap 27 is provided between the inner walls of the left and right ends of the heat storage chamber 24.
- the enhanced heat transfer power unit 25 is disposed in the auxiliary passage gap 27, and the enhanced heat transfer power unit 25 is a wind pump.
- the hot working medium flows into the main passage 212 of the heat storage unit 21 that communicates with the inlet 22 through the inlet 22, passes through the main passage gap 26, and passes through a row of the storage connected to the outlet 23
- the main passage 212 of the heat unit 21 flows to the outlet 23 to form the main heat transfer passage; the thermal medium inside the heat storage chamber 24 on both sides of the partition plate 28 is strengthened in the air pump
- the auxiliary passage 214 flows through the auxiliary passage 214 through the auxiliary passage 214 to form the auxiliary heat transfer passage.
- FIG 9 is another embodiment of the solar thermal storage system of the present invention, the thermal storage system including a thermal storage reactor 2, wherein the thermal storage reactor 2 is connected to the main pipeline 1 through an inlet 22 and an outlet 23;
- the heat storage stack 2 includes an adiabatic heat storage chamber 24 and a heat storage unit 21 disposed inside the heat storage chamber 24.
- the heat storage unit 21 is composed of a plurality of heat storage pipes 215 which are alternately arranged and communicated with each other, and a bulk heat storage medium disposed between the heat storage pipes 215.
- the heat storage tubes 215 are arranged in a horizontally and vertically arranged manner.
- the heat storage duct 215 is provided with a flow valve 231 at a position close to the outlet 23.
- the heat storage pipe 215 is provided with a plurality of heat dissipation holes 216 on the pipe wall, and the heat storage pipe 215 The outer portion is surrounded by a high temperature resistant gas permeable material, and the heat storage medium between the heat storage pipes 215 is sand.
- the hot working medium flows into the heat storage pipe 215 communicating with the inlet 22 through the inlet 22, and passes through the ventilation brick between the end of the heat storage pipe 215 and the inner wall of the rear end of the heat storage chamber 24. After reversing, flowing into a row of the heat storage tubes 215 flowing into the outlet 23 to the outlet 23 to form the main heat transfer passage;
- the heat medium inside the heat storage chamber 24 flows between the heat storage pipe 215 and the ventilation brick 29 between the heat storage pipe 215 and the inner wall of the left and right ends of the heat storage chamber 24 to form a Said auxiliary heat transfer channel.
- FIG 10 is another embodiment of the solar thermal storage system of the present invention, the thermal storage system including a thermal storage reactor 2, wherein the thermal storage reactor 2 is connected to the main pipeline 1 through an inlet 22 and an outlet 23;
- the heat storage stack 2 includes an adiabatic heat storage chamber 24 and a heat storage unit 21 disposed inside the heat storage chamber 24.
- the heat storage unit 21 includes two rows of heat storage modules 211 and a bulk heat storage medium disposed between the heat storage modules 211.
- the bulk heat storage medium is sandstone.
- the surface or the inside of the heat storage module 211 is formed with the hot working medium passage 212 communicating with the longitudinal direction and the longitudinal direction.
- the hot working fluid flows into the hot working medium passage 212 in the lateral direction of the heat storage module 211 through the inlet 22, and passes between the end of the heat storage pipe 215 and the inner wall of the rear end of the heat storage chamber 24.
- the ventilating bricks 29 are reversed, flow into the hot working medium passages 212 in the horizontal direction of the heat storage module 211 that communicates with the outlets 23 to the outlets 23 to form the main heat transfer passages;
- the hot working medium inside the heat storage chamber 24 passes through the hot working medium passage 212 in the longitudinal direction of the heat storage module 211 and between the heat storage duct 215 and the left and right inner walls of the heat storage chamber 24 Ventilation brick Between 29, the auxiliary heat transfer passage is formed.
- the heat storage unit 21 may include only one large heat storage module 211 for a small solar heat storage system.
- the heat storage module 211 is formed with a plurality of hot working fluid channels 212.
- the heat storage unit of this structure has a high processing cost, but the construction of the heat storage reactor is convenient.
- the heat storage module 211 may also be in the form of a structure as shown in FIG. 11, which includes a hollow brick 217 having a longitudinal through hole, and is disposed inside the through hole of the hollow brick 217, and is horizontally and vertically staggered and connected to each other.
- a bulk heat storage medium is disposed between the hollow brick 217 and the heat dissipation duct 218.
- the inlet 22 and the outlet 23 of the solar thermal storage system may also be disposed at the left and right ends of the thermal storage stack 2, respectively.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201210295692.8A CN103591822B (zh) | 2012-08-17 | 2012-08-17 | 一种太阳能储热*** |
CN201210295692.8 | 2012-08-17 |
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WO2014026559A1 true WO2014026559A1 (zh) | 2014-02-20 |
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PCT/CN2013/081003 WO2014026559A1 (zh) | 2012-08-17 | 2013-08-07 | 一种太阳能储热装置 |
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WO (1) | WO2014026559A1 (zh) |
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WO2021034417A1 (en) * | 2019-08-22 | 2021-02-25 | Westinghouse Electric Company Llc | Energy storage device |
US11248851B2 (en) | 2017-06-21 | 2022-02-15 | Westinghouse Electric Company Llc | Energy storage device |
US11692778B2 (en) | 2017-06-21 | 2023-07-04 | Westinghouse Electric Company Llc | Energy storage device |
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FR3040210B1 (fr) * | 2015-08-20 | 2019-09-06 | Hutchinson | Ensemble modulaire pour stockeur ou batterie |
CN105890193B (zh) * | 2016-06-30 | 2018-10-16 | 赵小峰 | 一种高温蓄热装置的强化换热结构以及具有该结构的高温蓄热装置 |
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CN107246732A (zh) * | 2017-06-14 | 2017-10-13 | 辽宁赛科新能源技术开发有限公司 | 一种固体电蓄热设备 |
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CN103591822A (zh) | 2014-02-19 |
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