CN102162636A - High-temperature heat storage and evaporation integrated device - Google Patents
High-temperature heat storage and evaporation integrated device Download PDFInfo
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- CN102162636A CN102162636A CN2011100894655A CN201110089465A CN102162636A CN 102162636 A CN102162636 A CN 102162636A CN 2011100894655 A CN2011100894655 A CN 2011100894655A CN 201110089465 A CN201110089465 A CN 201110089465A CN 102162636 A CN102162636 A CN 102162636A
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- 238000001704 evaporation Methods 0.000 title claims abstract description 169
- 230000008020 evaporation Effects 0.000 title claims abstract description 167
- 238000005338 heat storage Methods 0.000 title claims abstract description 108
- 238000010438 heat treatment Methods 0.000 claims abstract description 76
- 238000012546 transfer Methods 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000009413 insulation Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 5
- 239000013529 heat transfer fluid Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 description 88
- 150000003839 salts Chemical class 0.000 description 29
- 239000000463 material Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000012782 phase change material Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000004927 fusion Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000208966 Polygala Species 0.000 description 1
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- 238000010835 comparative analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- 238000013517 stratification Methods 0.000 description 1
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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
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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
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
一种高温储热蒸发一体化装置，包括储热块(5)、储液槽(7)、保温层(4)、加热管(8)、蒸发管(9)。保温层(4)紧贴储液槽(7)外壁；储热块(5)置于储液槽(7)内部；储热块(5)规则地等间距分布有多个通孔；加热管(8)与蒸发管(9)间隔穿过储热块(5)上的通孔。加热管(8)与蒸发管(9)为光管或强化换热管；储液槽(7)容器内部填充高温传热工质。
A high-temperature heat storage and evaporation integrated device, comprising a heat storage block (5), a liquid storage tank (7), an insulation layer (4), a heating pipe (8), and an evaporation pipe (9). The thermal insulation layer (4) is close to the outer wall of the liquid storage tank (7); the heat storage block (5) is placed inside the liquid storage tank (7); the heat storage block (5) has a plurality of through holes regularly distributed at equal intervals; the heating tube (8) pass through the through hole on the heat storage block (5) at intervals with the evaporation tube (9). The heating tube (8) and the evaporating tube (9) are bare tubes or enhanced heat exchange tubes; the container of the liquid storage tank (7) is filled with a high-temperature heat-transfer working fluid.
Description
Technical field
The present invention relates to a kind of heat accumulation evaporation integral device.
Background technology
Owing to can realize continual and steady supply of electric power by heat accumulation, the light-focusing type solar generating is being known as the renewable energy power generation technology that has potentiality by countries in the world now.Heat accumulation mode and heat accumulating performance and cost count for much for construction of solar energy thermal-power-generating station and operating cost.The heat accumulating that is used for solar heat power generation system need possess following characteristics: high energy storage density; Heat accumulating and heat exchanger fluid should have good exchange heat performance; Heat accumulating should possess good stable; Between heat accumulating and the system equipment good chemical compatibility should be arranged; Heat accumulation heat release circulation should be reversible; High cost performance.Current heat accumulation mode mainly contains latent heat heat accumulation, sensible heat heat accumulation and three kinds of modes of chemical energy heat accumulation.Latent heat is meant under the condition that temperature remains unchanged, material from some phase transition process that changes another phase mutually into suck or liberated heat, the latent heat heat accumulation is exactly to utilize material to absorb during the phase co-conversion between solid phase, liquid phase, gas phase or the latent heat of emitting is realized depositing of heat energy, this process is reversible, can be two-way repeatedly repeat this technology current research and being widely used.Latent heat heat accumulating commonly used has water, various hydrated salt, salt-mixture etc.Quantity of heat storage is huge, but the heat accumulation temperature is limited by the kind of heat accumulating and rerum natura.Sensible heat is meant after this heat adds or removes, can causes the material variation of temperature, and not undergo phase transition.The sensible heat heat accumulation is the simplest and mature technique, and sensible heat heat accumulating commonly used has water, fuse salt, conduction oil, concrete, cobble etc.The amount of heat accumulation desired substance is bigger.The energy that chemical energy is discharged when being object generation chemical reaction, the chemical energy heat accumulation is all bigger than the heat flow density of sensible heat and latent heat heat accumulation, but technical sophistication does not still have commercial Application at present.Heat reservoir type and the characteristics having used in the solar energy thermal-power-generating station or reported in the document patent are as follows: the hot system of two tank storages of (1) " high temperature salt cellar+low temperature salt cellar ".Document 1 (Ulf Hermann, Bruce Kelly, Henry Price.Two-tank molten salt storage for parabolic trough solar power plants, Energy, 2004, (29): 883-893) reported of the application of the two hot systems of tank storage of fuse salt at the trough type solar power generation station.Fuse salt is as heat transfer, the integrated working medium of heat accumulation.Fuse salt has stronger corrosivity, but compares conduction oil, and the fuse salt heat accumulation has advantage cheaply.And according to the difference of fuse salt kind, the operating temperature range of heat reservoir can be at 200 ℃-560 ℃, the operating temperature upper limit is higher, help improving the running parameter of steam-electric power unit, and then realize higher generating efficiency, but this scheme need be made two fuse salt heat storage cans, and the fuse salt use amount is also very big.(2) the hot system of mesolimnion fuse salt list tank storage.Document 2 (Robert J.Copeland, Lakewood, Colo., US patent (No.4523629)) reported a kind of mesolimnion list tank storage thermic devices of utilizing fuse salt liquid phase sensible heat heat accumulation, be characterized in the fusion salt cellar, being provided with baffle plate, the cold salt that suppresses in the fusion salt cellar mixes with hot salt, promotes the section thermal stratification up and down of fusion salt cellar.Document 3 (left polygala root, Yang Xiaoxi, fourth Zhan, fourth is quiet, Jianping YANG, Chinese invention patent (ZL200710028077.X)) reported high temperature mesolimnion mixing heat-storing device in a kind of fuse salt, the phase-change material of packing in the fusion salt cellar relies on sensible heat transfer and phase-change heat-exchange to carry out heat accumulation.With hot system of two tank storages and the hot systematic comparison of fuse salt list tank storage, can further reduce the heat accumulation cost.(3) the hot system of " sandstone+conduction oil " single tank storage.Document 4 (M.Castro, J.L.Presa, J.D í az, J.Peire, A.F.Baker, S.E.Faas, L.G.Radosevich, A.C.Skinrood.C.R.S.receiver and storage systems evaluation (J), Solar Energy, 1991,47 (3): 197-207) reported the design feature of the hot system of " sandstone+conduction oil " single tank storage, the problem that pollute at heat exchange, conduction oil, also there is the needs solution in aspect such as difficult startups of low temperature.(4) concrete heat accumulation module.Document 6 (Ulf Herrmann, David Wearney.Survey of thermal energy storage for parabolic trough power plants (J), Journal of solar energy engineering, 2002,124:145-152) by the cost of electricity-generating of several heat accumulatings of comparative analysis, it is best to draw concrete heat accumulation modularity price ratio.Chinese patent ZL200610112004.4 has proposed a kind of concrete high temperature reservoir and heat-storing method of utilizing, use gravity assisted heat pipe to solve corrosion and frozen problem, but metal tube is different with the concrete expansion rate, expand with heat and contract with cold and can cause crackle to xoncrete structure, the thermal contact resistance between metal tube and the concrete is also bigger.There is the cost height in the heat accumulation mode of reporting in the above in addition document, and a difficult problem that can not cold-starting.In addition, when said apparatus is used, also need to be equipped with an evaporimeter in solar heat power generation system, just can be embodied as Turbo-generator Set provides running required steam.On the mode of heat accumulation and steam generation, all can not further significantly reduce cost, improve system effectiveness and stability.
Summary of the invention
The purpose of this invention is to provide a kind of high-temperature heat-storage evaporation integral device that can be applicable to solar heat power generation system, it have simple in structure, safe and reliable, heat exchange efficiency is high and be easy to the characteristics of cold-starting.
High-temperature heat-storage evaporation integral device of the present invention is made up of parts such as heat accumulation piece, reservoir, heat-insulation layer, heating tube, evaporation tubes.Heat-insulation layer is close to the reservoir outer wall; The heat accumulation piece places reservoir inside; Be distributed with a plurality of horizontally disposed through holes on the heat accumulation piece regularly; The alternate layout of heating tube and evaporation tube is respectively passed through hole horizontally disposed on the heat accumulation piece, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube and evaporation tube can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.Reservoir internal tank filled high-temperature heat-transfer working medium.
When high-temperature heat-storage evaporation integral device heat accumulation temperature of the present invention is in 400 ℃; the inner high temperature heat transfer working medium of filling of reservoir is conduction oil; the interior conduction oil of reservoir this moment needs inert gas shielding; reservoir is a bearing structure, and the heat-transfer working medium that flows in the heating tube is conduction oil or fuse salt.When high-temperature heat-storage evaporation integral device heat accumulation temperature of the present invention was in 600 ℃, the inner high temperature heat transfer working medium of filling of reservoir was mixed melting salt, and this moment, reservoir was a nonbearing structure.The heat-transfer working medium that flows in the heating tube is a mixed melting salt; Flowing heat transfer working medium in the evaporation tube is steam; The heat accumulation block of material is cobble, pottery or concrete, and the inner high temperature heat transfer working medium of filling of the material of heat accumulation piece and reservoir has excellent compatibility; Be reserved with the space between the through hole of regular distribution and heating tube and the evaporation tube on the heat accumulation piece, be convenient to on-the-spot the installation, can guarantee that also heat accumulation piece, heating tube and evaporation tube do not interfere each other and cause structural deterioration when expanding with heat and contract with cold.
High-temperature heat-storage evaporation integral device fills when hot, and the high temperature heat transfer fluid enters heating tube from the heating tube inlet, and flows out from the heating tube outlet after inner high temperature heat transfer working medium of filling of reservoir and the abundant heat exchange of heat accumulation piece.Heat is stored in the high temperature heat transfer working medium of heat accumulation piece and reservoir inside.
During the heat release of high-temperature heat-storage evaporation integral device, saturation water or Low Temperature Steam enter evaporation tube from the evaporation tube inlet, after the inner high temperature heat transfer working medium and the abundant heat exchange of heat accumulation piece of filling of reservoir, are heated to be high-temperature steam, flow out from the evaporation tube outlet.
High-temperature heat-storage evaporation integral device is in trial run for the first time; or cause long-term shutdown because of reasons such as maintenances of equipment; when starting under the low situation of heat accumulation deblocking temperature; if the heat-transfer working medium that flows in the heating tube is a conduction oil; because solar energy thermal-power-generating station DOWTHEM-A conduction oil commonly used can solidify below 12 ℃; so hot water below 100 ℃ or the Low Temperature Steam more than 100 ℃ enter evaporation tube from the evaporation tube inlet; the inner high temperature heat transfer working medium of filling of heating reservoir; and then heating heat accumulation piece and insertion heating tube wherein, flow out from the evaporation tube outlet after the heat exchange.The conduction oil that solidifies in the heating tube is heated to be liquid state, can flow circuit.When high-temperature heat-storage evaporation integral device is applied in the fuse salt solar energy thermal-power-generating station, the heating tube transfer working medium in heat of high-temperature heat-storage evaporation integral device is a fuse salt, solar energy thermal-power-generating station mixed nitrate fused salt commonly used is being solid-state below 220 ℃, so the high-temperature steam more than 290 ℃ enters evaporation tube from the evaporation tube inlet, inner high temperature heat transfer working medium, heat accumulation piece and the heating tube of filling of heating reservoir flows out from the evaporation tube outlet after the heat exchange.The fuse salt that solidifies in the heating tube is heated molten for liquid, the beginning flow circuit.
Advantage of the present invention can be mixed the phase-change material of good seal being to adopt the material of the concrete of cobble, resistant to elevated temperatures pottery, corrosion-and high-temp-resistant as the heat accumulation piece, and it is big to make full use of the above-mentioned material heat storage capacity, the characteristics of with low cost and elevated temperature heat stable performance; The heat accumulation piece is placed liquid reserve tank, make full use of the gap of reserving between high temperature heat transfer working medium filling heating tube, evaporation tube and the heat accumulation piece through hole in the liquid reserve tank.Can utilize on the one hand high temperature heat transfer working medium to reduce thermal contact resistance between heat exchanger tube and the heat accumulation piece, enhancing heat exchange; Also can avoid heat exchanger tube to contact the structural failure that tension expands with heat and contract with cold and brings on the other hand with the heat accumulation piece.So this high-temperature heat-storage evaporation integral device has better heat transfer characteristic and reliability, be better than solid heat-storing device in the past.In addition, the heating tube and the evaporation tube of high-temperature heat-storage evaporation integral device of the present invention all place the heat accumulation piece, high-temperature heat-storage evaporation integral device is when cold-starting, can utilize hot water or steam to pass through evaporation tube, preheating heat accumulation piece, it is stifled to solve high temperature heat transfer working medium freezing at low temperatures, and this function also is better than solid heat-storing device in the past.In addition, high-temperature heat-storage evaporation integral apparatus structure compactness of the present invention also can be according to the demand of heat accumulation temperature and steam (vapor) outlet parameter, and by changing the series, parallel mode, flexible combination is used, and the heat energy in the heat accumulation piece is made full use of according to the temperature step.Owing to have These characteristics, so high-temperature heat-storage evaporation integral device of the present invention has higher heat exchange efficiency than heat-storing device in the past, better economy and operational reliability are specially adapted to the solar energy thermal-power-generating occasion in heat accumulation evaporation more than 400 ℃.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 high-temperature heat-storage evaporation integral device rectangular structure stereogram;
Fig. 2 high-temperature heat-storage evaporation integral device cylindrical structure stereogram;
Fig. 3 high-temperature heat-storage evaporation integral device vertical view;
Fig. 4 high-temperature heat-storage evaporation integral device positive view;
Fig. 5 high-temperature heat-storage evaporation integral device rectangular structure left side cutaway view;
Fig. 6 high-temperature heat-storage evaporation integral device cylindrical structure left side cutaway view;
The cuboid heat accumulation piece of Fig. 7 high-temperature heat-storage evaporation integral device and heat exchanger tube connected mode schematic diagram;
The cylinder heat accumulation piece of Fig. 8 high-temperature heat-storage evaporation integral device and heat exchanger tube connected mode schematic diagram;
The heating tube schematic diagram of Fig. 9 high-temperature heat-storage evaporation integral device;
The evaporation tube schematic diagram of Figure 10 high-temperature heat-storage evaporation integral device;
The cuboid heat accumulation piece schematic diagram of Figure 11 high-temperature heat-storage evaporation integral device;
The cylinder heat accumulation piece schematic diagram of Figure 12 high-temperature heat-storage evaporation integral device;
Figure 13 high-temperature heat-storage evaporation integral device is formed the system applies schematic diagram;
Among the figure: 1 heating tube inlet, 2 evaporation tubes inlet, the outlet of 3 evaporation tubes, 4 heat-insulation layers, 5 heat accumulation pieces, the outlet of 6 heating tubes, 7 liquid reserve tanks, 8 heating tubes, 9 evaporation tubes, 10 valve A, 11 valve B, 12 valve C, 13 valve D, 14 valve E, 15 valve F, 16 valve G, 17 valve H, 18 valve I, 19 valve J, 20 valve K, 21 valve L, 22 valve M, 23 valve N, 24 valve O, 25 valve P, 26 high-temperature heat-storage evaporation integral device Q, 27 high-temperature heat-storage evaporation integral device R, 28 high-temperature heat-storage evaporation integral device S.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, high-temperature heat-storage evaporation integral device profile is a rectangular structure.High-temperature heat-storage evaporation integral device outermost is a heat-insulation layer 4.Heating tube inlet 1, heating tube outlet 6, evaporation tube inlet 2, the reservoir 7 and heat-insulation layer 4 outsides are stretched out in evaporation tube outlet 3.When high-temperature heat-storage evaporation integral device uses for the first time; when perhaps shutting down the back startup owing to reasons such as maintenance experience is long-term; hot water or Low Temperature Steam flow into from evaporation tube inlet 2, flow out from evaporation tube outlet 3, finish the preheating to high-temperature heat-storage evaporation integral device.When high-temperature heat-storage evaporation integral device fills when hot, high temperature heat transfer working medium flows into from heating tube inlet 1, flows out from heating tube outlet 6, finishes the storage process of heat.During the evaporation heat release, hot water or Low Temperature Steam flow into from evaporation tube inlet 2, and after heat exchange, heated high-temperature steam flows out from evaporation tube outlet 3.
As shown in Figure 2, high-temperature heat-storage evaporation integral device profile is a cylindrical structure.High-temperature heat-storage evaporation integral device outermost is a heat-insulation layer 4.Heating tube inlet 1, heating tube outlet 6, evaporation tube inlet 2, the reservoir 7 and heat-insulation layer 4 outsides are stretched out in evaporation tube outlet 3.When high-temperature heat-storage evaporation integral device uses for the first time; when perhaps shutting down the back startup owing to reasons such as maintenance experience is long-term; hot water or Low Temperature Steam flow into from evaporation tube inlet 2, flow out from evaporation tube outlet 3, finish the preheating to high-temperature heat-storage evaporation integral device.When high-temperature heat-storage evaporation integral device fills when hot, high temperature heat transfer working medium flows into from heating tube inlet 1, flows out from heating tube outlet 6, finishes the storage process of heat.During the evaporation heat release, hot water or Low Temperature Steam flow into from evaporation tube inlet 2, and after heat exchange, heated high-temperature steam flows out from evaporation tube outlet 3.
As shown in Figure 3 and Figure 4, high-temperature heat-storage evaporation integral device is made up of heat accumulation piece 5, reservoir 7, heat-insulation layer 4, heating tube 8, evaporation tube 9.Heating tube inlet 1, heating tube outlet 6, evaporation tube inlet 2, the reservoir 7 and heat-insulation layer 4 outsides are stretched out in evaporation tube outlet 3.The material of reservoir 7 can be a metal, also can be nonmetal.Heat-insulation layer 4 is close to the outer wall of reservoir 7; Heat accumulation piece 5 places reservoir 7 inside; Equidistantly be distributed with the through hole of a plurality of levels on the heat accumulation piece 5 regularly; Heating tube 8 and evaporation tube 9 alternate layouts are respectively passed through hole horizontally disposed on the heat accumulation piece 5, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube 8 and evaporation tube 9 can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.Reservoir 7 internal tank filled high-temperature heat-transfer working mediums.When high-temperature heat-storage evaporation integral device uses for the first time; when perhaps shutting down the back startup owing to reasons such as maintenance experience is long-term; hot water or Low Temperature Steam flow into from evaporation tube inlet 2, flow out from evaporation tube outlet 3, finish the preheating to high-temperature heat-storage evaporation integral device.When high-temperature heat-storage evaporation integral device fills when hot, high temperature heat transfer working medium flows into from heating tube inlet 1, flows out from heating tube outlet 6, with high temperature heat transfer working medium and the 5 abundant heat exchange of heat accumulation piece in the reservoir 7, finishes the storage process of heat.Evaporation is during heat release, and hot water or Low Temperature Steam flow into from evaporation tube inlet 2, through with reservoir 7 in high temperature heat transfer working medium and the 5 abundant heat exchange of heat accumulation piece after, hot water or Low Temperature Steam are heated to be high-temperature steam and export 3 outflows from evaporation tube.
As shown in Figure 5, profile is that the high-temperature heat-storage evaporation integral device cross sectional shape of rectangular structure is a rectangle, and heat-insulation layer 4 is close to the outer wall of reservoir 7; Heat accumulation piece 5 places reservoir 7 inside; Equidistantly be distributed with the through hole of a plurality of levels on the heat accumulation piece 5 regularly; Heating tube 8 and evaporation tube 9 alternate layouts are respectively passed through hole horizontally disposed on the heat accumulation piece 5, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube 8 and evaporation tube 9 can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.Reservoir 7 internal tank filled high-temperature heat-transfer working mediums.
As shown in Figure 6, profile is that the high-temperature heat-storage evaporation integral device cross sectional shape of cylindrical structure is circle, and heat-insulation layer 4 is close to the outer wall of reservoir 7; Heat accumulation piece 5 places reservoir 7 inside; Equidistantly be distributed with a plurality of horizontally disposed through holes on the heat accumulation piece 5 regularly; Heating tube 8 and evaporation tube 9 alternate layouts are respectively passed through hole horizontally disposed on the heat accumulation piece 5, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube 8 and evaporation tube 9 can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.Reservoir 7 internal tank filled high-temperature heat-transfer working mediums.
As shown in Figure 7, the high-temperature heat-storage evaporation integral device inside of rectangular structure includes a plurality of heat accumulation pieces 5, and heat accumulation piece 5 is rectangular structure.Equidistantly be distributed with a plurality of horizontally disposed through holes on the heat accumulation piece 5 regularly.Heating tube 8 and evaporation tube 9 alternate layouts are respectively passed through hole horizontally disposed on the heat accumulation piece 5, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube 8 and evaporation tube 9 can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.The material of heat accumulation piece 5 can adopt the concrete of cobble, resistant to elevated temperatures pottery, corrosion-and high-temp-resistant, can mix the phase-change material of good seal in the heat accumulation piece 5.
As shown in Figure 8, the high-temperature heat-storage evaporation integral device inside of cylindrical structure includes a plurality of heat accumulation pieces 5, and heat accumulation piece 5 is cylindrical structure.Equidistantly be distributed with a plurality of horizontally disposed through holes on the heat accumulation piece 5 regularly.Heating tube 8 and evaporation tube 9 alternate layouts are respectively passed through hole horizontally disposed on the heat accumulation piece 5, and every heating tube is close with distance between the adjacent evaporation tube or equate.Heating tube 8 and evaporation tube 9 can be light pipes, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.The material of heat accumulation piece 5 can adopt the concrete of cobble, resistant to elevated temperatures pottery, corrosion-and high-temp-resistant, can mix phase-change material in the heat accumulation piece 5.
As shown in Figure 9, the heating tube 8 of high-temperature heat-storage evaporation integral device inside can be a light pipe, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.
As shown in figure 10, the evaporation tube 9 of high-temperature heat-storage evaporation integral device inside can be a light pipe, also can be bellows, variable cross-section elliptical tube, screwed pipe, install the thermoexcell of fin additional.
As shown in figure 11, the heat accumulation piece 5 of the high-temperature heat-storage evaporation integral device inside of rectangular structure is rectangular structure.Equidistantly be distributed with a plurality of horizontally disposed through holes on the heat accumulation piece 5 regularly, through hole 29 is reserved for heating tube, and through hole 30 is reserved the alternate layout in two class holes for evaporation tube.The material of heat accumulation piece 5 can adopt the concrete of cobble, resistant to elevated temperatures pottery, corrosion-and high-temp-resistant, can mix the phase-change material of good seal in the heat accumulation piece 5.
As shown in figure 12, the heat accumulation piece 5 of the high-temperature heat-storage evaporation integral device inside of cylindrical structure is cylindrical structure.Equidistantly be distributed with a plurality of through holes on the heat accumulation piece 5 regularly, through hole 29 is reserved for heating tube, and through hole 30 is reserved the alternate layout in two class holes for evaporation tube.The material of heat accumulation piece 5 can adopt the concrete of cobble, resistant to elevated temperatures pottery, corrosion-and high-temp-resistant, can mix the phase-change material of good seal in the heat accumulation piece 5.
Figure 13 is made of the schematic diagram of the concrete using method of multi-module system 3 high-temperature heat-storage evaporation integral devices.Valve A10, valve B11, valve C12, valve D13, valve E14, valve F15, valve G16, valve H17 are the valve of control heating pipe line break-make.Valve I18, valve J19, valve K20, valve L21, valve M22, valve N23, valve O24, valve P25 are the valve of control evaporation pipeline break-make.High-temperature heat-storage evaporation integral device Q26, high-temperature heat-storage evaporation integral device R27, high-temperature heat-storage evaporation integral device S28 are three high-temperature heat-storage evaporation integral devices that structure is identical.By changing valve opening and closed condition, can realize following multiple heat and the heat release pattern of filling:
1) high-temperature heat-storage evaporation integral device fills the exothermic heat pattern separately.When providing energy stored more after a little while, can fill heat to single high-temperature heat-storage evaporation integral device.Can open valve A10, valve B11, valve G16, valve F15 closes other valves of heating pipe line.High temperature heat transfer working medium can flow into high-temperature heat-storage evaporation integral device R27 through valve A10, valve B11, and heat exchange is after valve G16, valve F15 outflow.R27 is heated to predetermined temperature when high-temperature heat-storage evaporation integral device, finish the heat accumulation process after, open valve A10, valve C12, valve H17, valve F15, close other valves of heating pipe line, can separately high-temperature heat-storage evaporation integral device Q26 be heated to predetermined temperature.Same, open valve A10, valve D13, valve E14, valve F15 closes other valves of heating pipe line, can separately high-temperature heat-storage evaporation integral device S28 be heated to predetermined temperature.
Quantity of steam is less when using, evaporation institute energy requirement is less, when high-temperature heat-storage evaporation integral device need provide steam to carry out heat release separately, open valve I18, valve N23, valve J19, valve M22 closes other valves that evaporate pipeline, and Low Temperature Steam can be through valve I18, valve N23, flow into high-temperature heat-storage evaporation integral device R27, heat exchange is after valve J19, valve M22 outflow.When the heat accumulation among the high-temperature heat-storage evaporation integral device R27 is reduced to steam can not be provided to setup parameter the time, open valve I18, valve O24, valve L21, valve M22, close other valves of evaporation pipeline, can use high-temperature heat-storage evaporation integral device Q26 that Low Temperature Steam is heated to setup parameter separately.Same, open valve I18, valve P25, valve K20, valve M22 closes other valves that evaporate pipeline, can use high-temperature heat-storage evaporation integral device S28 that Low Temperature Steam is heated to setup parameter separately.
2) high-temperature heat-storage evaporation integral device fills the exothermic heat pattern simultaneously.In the time can providing energy stored abundant, can fill heat simultaneously to a plurality of high-temperature heat-storage evaporation integral devices in the system.Open the valve A10 on the heating pipe line simultaneously, valve B11, valve C12, valve D13, valve E14, valve F15, valve G16, valve H17, high-temperature heat-storage evaporation integral device Q26, high-temperature heat-storage evaporation integral device R27, high-temperature heat-storage evaporation integral device S28 is in state in parallel mutually, high temperature heat transfer working medium can be simultaneously with high-temperature heat-storage evaporation integral device Q26, high-temperature heat-storage evaporation integral device R27, and high-temperature heat-storage evaporation integral device S28 is heated to design temperature.
Quantity of steam is bigger when using, evaporation institute energy requirement is more, when needing a plurality of high-temperature heat-storage evaporation integral devices to work heating steam simultaneously, opens the valve I18 on the evaporation pipeline simultaneously, valve J19, valve K20, valve L21, valve M22, valve N23, valve O24, valve P25, Low Temperature Steam is heated to setup parameter simultaneously by high-temperature heat-storage evaporation integral device Q26, high-temperature heat-storage evaporation integral device R27, high-temperature heat-storage evaporation integral device.
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