CN203479116U - Spray-type packed bed heat storage device - Google Patents
Spray-type packed bed heat storage device Download PDFInfo
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- CN203479116U CN203479116U CN201320368818.XU CN201320368818U CN203479116U CN 203479116 U CN203479116 U CN 203479116U CN 201320368818 U CN201320368818 U CN 201320368818U CN 203479116 U CN203479116 U CN 203479116U
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
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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
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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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- 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
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- Special Spraying Apparatus (AREA)
Abstract
The utility model discloses a spray-type packed bed heat storage device, which is applied to the field of middle-temperature high-temperature heat energy storage. The novel heat storage device adopts a liquid-state fluid as a heat-transfer medium and a solid material as a heat storage medium, a sprinkler is used for atomizing the liquid heat-transfer medium into tiny liquid drops/diverging into a plurality of liquid columns, the liquid holdup in the packed bed does not exceed 50% of gaps of the packed bed, only a small amount of liquid heat-transfer medium is needed, and the cost can be greatly reduced. The heat storage device is a heat storage structure which adopts an outer shell for pressure bearing, wherein a heat insulation layer is arranged between the outer shell and an inner shell, the inlet of the packed bed is a single or more arrayed sprinklers, and the inside of the shell is fill with the solid material as a heat storage medium. The spray-type packed bed heat storage device disclosed by the utility model has the advantages of being simple in structure, low in cost, long in service life, high in heat storage efficiency, high in heat energy grade, and the like; the heat storage device is particularly suitable for heat energy storages of large-capacity large-temperature-range middle-temperature high-temperature solar power generation systems.
Description
Technical field
The utility model relates to middle high temperature heat storage art, is that a kind of spray equipment that utilizes makes fluid liquid heat transfer medium be atomized into fine droplet or thin fluid column, store with the generation heat exchange of filling bed type solid heat-storage medium/or the regenerative apparatus of release heat.
Background technology
The disclosed fountain packed bed of the utility model regenerative apparatus is mainly applicable to middle high temperature solar heat generating system, and the application of the high-temperature heat accumulation in other such as industrial exhaust heat storage.
In the face of energy crisis, the research work of the Novel clean regenerative resources such as water energy, wind energy, biomass energy, solar energy is being actively developed in countries in the world.The high CO of production process energy consumption of cell panel in solar photovoltaic technology
2discharge capacity is large, and generating efficiency is low is the bottleneck problem of this technical development of restriction.And solar energy thermal-power-generating is the solar energy generation technology of another potentiality that grow a lot except photovoltaic power generation technology, it is also the renewable energy power generation technology of tool economic competitiveness except wind-powered electricity generation, solar thermal collector changes superheated steam the solar radiant energy of collecting into through heat exchanger, by traditional power cycle, produce electric energy, the maturation that possesses skills, low and the easy and fossil fuel of cost of electricity-generating forms the advantage of hybrid power system.But the series of problems such as unstability that cause due to the discontinuity round the clock of solar energy and due to cloudy wet weather, have produced very large impact to the steady output of solar light-heat power-generation systematic electricity.Therefore regenerative apparatus be set in solar heat power generation system be one of effective method.
Solar heat-preservation can be divided into sensible heat accumulation of heat, latent-heat storage and chemical heat accumulation according to the difference of heat accumulation mechanism.Obviously heat storage technology is the most ripe a kind of in above three kinds of technology, but obtain more economy, controllability and high efficiency heat storage type, also face great number of issues, the factor that affects regenerative apparatus mainly contains following: the 1) energy storage density of the heat-storing material of unit volume or unit mass; 2) heat-exchange capacity between heat transfer medium and heat storage medium; 3) chemical property of heat-storing material; 4) number of times and the invertibity of storage system circulation; 5) compatibility between heat-conducting fluid and heat exchanger or heat storage medium; 6) radiation loss.And the developing direction of solar heat-preservation system is low cost, high efficiency and long-time accumulation of heat.But existing heat-storage technology is Shortcomings in every respect: fuse salt heat accumulation corrosivity is strong, easily solidifies; Superheated steam heat accumulation pressure is high, and required storage tank cost is too high; Conduction oil heat accumulation cost is too high.
Summary of the invention
The purpose of this utility model is to provide a kind of fountain packed bed regenerative apparatus, field of thermal energy storage for high temperature, this regenerative apparatus is that a kind of employing fluid liquid is heat transfer medium, solid material is heat storage medium, by spray equipment, liquid heat transfer medium is atomized into fine droplet/or be split into some fluid columns, the liquid holdup in packed bed is no more than 50% of packed bed space, only need a small amount of liquid heat transfer medium, the novel regenerative apparatus significantly reducing costs; Another feature of regenerative apparatus of the present utility model is, adopts shell pressure-bearing, heat-insulation layer between shell and inner casing, in the packed bed entrance spray equipment that is list/a plurality of arrangements, shell, to take up the accumulation of heat structure of solid heat storage medium.That the fountain packed bed regenerative apparatus the utility model proposes has is simple in structure, cost is low, long working life, heat storage efficiency are high, heat energy grade advantages of higher, also there is the advantage that heat-exchange capacity is strong, cost is low, efficiency is high, reliability is high between heat transfer medium and heat storage medium, be applicable to very much the middle high-temperature heat-storage systems such as solar heat power generation system.
Technical solution of the present utility model is:
A fountain packed bed regenerative apparatus, is characterized in that, the solid heat storage Filled Dielectrics bed that described regenerative apparatus comprises the spray equipment at housing packed bed top and is filled in described enclosure interior, is characterized in that,
Described regenerative apparatus also comprises liquid heat-transfer medium import and the spray equipment that is arranged on described case top, the entrance point of described liquid heat-transfer medium import is positioned at outside described housing, the port of export is connected with the spray equipment that is positioned at described housing, described spray equipment comprises liquid heat-transfer medium container cavity, and its bottom arranges at least one mouth spray;
Described housing comprises heavy wall shell, heat-insulation layer, thin-walled inner casing from outside to inside successively, wherein, described heavy wall shell is pressure-containing member, described thin-walled inner casing is attachment of nonpressure parts, described thin-walled inner casing is not communicated with heat-insulation layer, on described thin-walled inner casing and heat-insulation layer, be respectively provided to the few one logical pressure mouthful being communicated with extraneous voltage-stabilizing system by pipeline, the pressure of described extraneous voltage-stabilizing system is at least more than or equal to the pressure in described thin-walled inner casing and in heat-insulation layer.In use, the liquid holdup of liquid heat-transfer medium in described solid heat storage Filled Dielectrics bed is no more than 50% of described solid heat storage Filled Dielectrics bed space to fountain packed bed regenerative apparatus of the present utility model.The liquid holdup of described solid heat storage Filled Dielectrics bed inside refers to heat transfer medium under the liquid condition storage in packed bed space, comprises quiet liquid holdup and dynamic liquid holdup.
In fountain packed bed regenerative apparatus of the present utility model, liquid heat transfer medium passes through spray equipment, to be atomized into fine droplet/or be split into some fluid columns, spray equably to top layer solid heat storage dielectric surface, under Action of Gravity Field, by space between solid heat storage medium, flow to packed bed bottom, in this process with solid heat storage medium generation heat exchange; Packed bed inner casing does not play pressure-bearing effect, and heat-insulation layer is consistent with the pressure of extraneous voltage-stabilizing system by the logical mouth of pressing, and makes shell play pressure-bearing effect; Inner casing and heat-insulation layer, without any communication apparatus, guarantee that the liquid in packed bed can not leak in heat-insulation layer.
Preferably, described spray equipment is placed in described solid heat storage Filled Dielectrics bed upper end.
Preferably, described regenerative apparatus also comprises at least one solid-state heat storage medium charging aperture, at least one liquid heat transfer medium outlet in bottom, at least one solid-state heat storage medium discharge gate.The port of export or the arrival end of the liquid heat transfer medium outlet in described bottom have at least a place that sedimeter is housed.Described extraneous voltage-stabilizing system comprises pressure source and pressure-control valve.
Preferably, between described heavy wall shell and thin-walled inner casing, establish inner casing bracing or strutting arrangement.
Preferably, the wall thickness of described thin-walled inner casing is less than 1/2 of heavy wall shell, and the thickness range of described heat-insulation layer is 10mm-1000mm.
Preferably, described housing comprises interconnective upper cover and body, the upper cover of described device and the connected mode of body be non-detachable welding be connected/or detachable flange connect; Low head is also connected for non-detachable welding with the connected mode of body/or detachable flange connect.
Preferably, described housing also comprises the low head being connected with body, described low head and the connected mode of body be non-detachable welding be connected/or detachable flange connect.
Preferably, described spray equipment, for fixing/or dismountable spray equipment, is placed in described upper cover, or with described upper cover Integral design; For dismountable spray equipment, during use, select according to actual needs installation or removal to fall spray equipment, disassemble after spray equipment, liquid heat-transfer medium is directly sprayed onto on the solid heat storage medium on described solid heat storage Filled Dielectrics bed by described liquid heat-transfer medium import.
Preferably, described spray equipment and liquid heat transfer medium import are one-body molded, or described spray equipment and liquid heat transfer medium import are two interconnective parts.
Preferably, during work, described thin-walled inner casing and heat-insulation layer are communicated with extraneous voltage-stabilizing system by logical pressure mouthful separately, and the pressure of described extraneous voltage-stabilizing system is at least more than or equal to the pressure in described thin-walled inner casing and in heat-insulation layer; During inoperative, described thin-walled inner casing and heat-insulation layer logical presses mouth all to disconnect and being communicated with of extraneous voltage-stabilizing system, and and external environment connect, being consistent with ambient pressure environment in described thin-walled inner casing and heat-insulation layer.
Preferably, described shell is pressure-bearing device, and its pressure-bearing scope is 0.1 to 40.0MPa.
Preferably, the material of described thin-walled inner casing is the metal materials such as stainless steel, aluminium, titanium, or the nonmetallic materials of heat-and corrosion-resistant such as pottery; Described bearing shell material is metal material, and as stainless steel, carbon steel, aluminium alloy, or Inorganic Non-metallic Materials is as the combination of pottery, a kind of in high temperature concrete or at least two kinds.
Preferably, described heat-insulation layer is one or more the mixture in rock wool, pearlife and glass mat.
Preferably, in described solid heat storage Filled Dielectrics bed space, filled media is the voltage stabilizing gas that is pre-charged with and the mixture of liquid state or gaseous heat-transfer medium.
Preferably, described voltage stabilizing gas is the wherein a kind of or mixing of at least two kinds such as air, nitrogen, helium, argon gas, and described liquid heat transfer medium is the wherein a kind of or mixing of at least two kinds such as conduction oil, water, methyl alcohol, ethanol, liquid metal.
Preferably, described spray equipment is orifice-plate type structure, when described spray equipment only arranges single mouth spray, this single mouth spray is positioned at the center of plank frame, when a plurality of mouth spray is set, the plurality of mouth spray is interval homogeneous texture, described in each mouth spray and horizontal plane angle at 30 ° within the scope of 90 °.
Preferably, described mouth spray ejection heat-transfer fluid is shaped as tiny water column/or fine drop/or atomized drop.
Preferably, described spray equipment is orifice-plate type structure, and the material of use is as stainless steel, carbon steel, aluminium alloy, or Inorganic Non-metallic Materials is as the combination of a kind of in pottery, high temperature concrete or at least two kinds.
Preferably, described regenerative apparatus is cylinder or spheroid, and described housing is the pressure vessel of sealing.
Preferably, described solid heat-storage medium is graininess or cellular, is rock, ore, and slag, concrete, refractory brick, Ceramic Balls, metal, the phase-change materials of encapsulation etc. are a kind of or mixture of at least two kinds wherein.
Preferably, import/export described in each on described regenerative apparatus, on logical press mouthful, valve part is all set described in each.
Preferably, the use flow process of fountain packed bed regenerative apparatus of the present utility model is:
In advance, close the liquid heat transfer medium outlet of packed bed regenerative apparatus bottom, remove the upper cover of packed bed regenerative apparatus, solid heat storage Filled Dielectrics is entered in packed bed, to predetermined altitude.Install end socket, with flange seal or welded seal.Packed bed inside logical pressed mouthful simultaneously, logical the pressures mouth in heat-insulation layer communicates with extraneous voltage-stabilizing system, makes the inside of packed bed regenerative apparatus, heat-insulation layer inside all consistent with the pressure in extraneous voltage-stabilizing system.
When the accumulation of heat of fountain packed bed regenerative apparatus, middle high-temperature liquid state heat transfer medium is entered by packed bed regenerative apparatus top entrance, under the effect of pressure differential, pass through spray equipment, make liquid heat transfer medium be atomized into fine droplets/or form some thin fluid columns, spray uniformly to the surface of the solid heat storage medium of top layer.Under Action of Gravity Field, liquid heat transfer medium is by the space between solid heat storage medium, evenly downward, through solid heat storage dielectric surface heat exchange with it, high temperature heat is passed to solid heat storage medium; Liquid heat transfer fluid is cooled, liquid heat transfer medium outlet through packed bed regenerative apparatus bottom is discharged, control the valve opening of the liquid heat transfer fluid flow outlet in packed bed regenerative apparatus bottom simultaneously, make the liquid holdup of liquid heat transfer medium of packed bed inside at below 50% of packed bed space.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that fountain packed bed regenerative apparatus has held full, close entering of liquid heat transfer medium, finish accumulation of heat.
When if fountain packed bed regenerative apparatus has stored certain heat and has started holding stage, the heat-transfer fluid of closing this regenerative apparatus top and bottom enters/or outlet.
During as fountain packed bed regenerative apparatus heat release, low temperature liquid heat transfer medium is entered by packed bed regenerative apparatus top entrance, under the effect of pressure differential, pass through spray equipment, make liquid heat transfer medium be atomized into fine droplets/or form some thin fluid columns, spray uniformly to the surface of the solid heat storage medium of top layer.Under Action of Gravity Field, liquid heat transfer medium passes through the space between solid heat storage medium, uniform flow, and through solid heat storage dielectric surface heat exchange with it, solid heat storage medium is given liquid fluid heat transfer medium by heat convection by the high-grade thermal energy transfer storing; After heat-transfer fluid is heated, by the liquid heat transfer medium outlet of packed bed bottom, discharged.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that the stored heat energy of fountain packed bed regenerative apparatus released.Close entering of liquid heat transfer medium, finish heat release.
That fountain packed bed regenerative apparatus of the present utility model has is simple in structure, cost is low, long working life, heat storage efficiency are high, heat energy grade advantages of higher, and the capacity that is specially adapted to is large, the heat-storing device in the big or middle high temperature solar heat generating system of temperature range.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model embodiment 3.
The specific embodiment
Clearer for the purpose of this utility model, technical scheme and advantage are described, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
Embodiment 1
As shown in Figure 1, be fountain packed bed regenerative apparatus embodiment 1 of the present utility model.The solid heat storage Filled Dielectrics bed 5 that fountain packed bed regenerative apparatus comprises housing and is filled in enclosure interior, also comprise the liquid heat-transfer medium import 1 and the plank frame spray equipment 3 that are arranged on described case top, the entrance point of liquid heat-transfer medium import 1 is positioned at outside described housing, the port of export is connected with the spray equipment 3 that is positioned at described housing, described spray equipment 3 comprises liquid heat-transfer medium container cavity, and its bottom arranges at least one mouth spray 9; Described housing comprises heavy wall shell 10, heat-insulation layer 6, thin-walled inner casing 11 from outside to inside successively, wherein, described heavy wall shell 10 is pressure-containing member, described thin-walled inner casing 11 is attachment of nonpressure parts, described thin-walled inner casing 11 is not communicated with heat-insulation layer 6, on described thin-walled inner casing 11 and heat-insulation layer 6, be respectively provided to the few one logical pressure mouthful being communicated with extraneous voltage-stabilizing system by pipeline, the pressure of described extraneous voltage-stabilizing system is at least more than or equal in described thin-walled inner casing 11 and the pressure in heat-insulation layer 6.Described extraneous voltage-stabilizing system can be various voltage-stabilizing systems common in this area.The liquid holdup of liquid heat-transfer medium 4 in described solid heat storage Filled Dielectrics bed 5 is no more than 50% of described solid heat storage Filled Dielectrics bed space.
In this embodiment, the liquid heat transfer medium import 1 at packed bed top is integral type with plank frame spray equipment 3, has several mouth sprays 9 on plank frame spray equipment, and the angle of its mouth spray and horizontal plane is 90 °; The arrangement mode of mouth spray 9 is arranged for take several concentric circles that dull and stereotyped center is the center of circle, and mouth spray is evenly distributed on concentric circles; And outermost circle with the immediate concentric circles of packed bed inwall on the track that sprays of mouth spray be that spray angle is the atomized drop of 30 ° to 120 °, the track that remaining mouth spray sprays is fluid column, as shown in fig. 1.Wherein, regenerative apparatus also comprises inner casing bracing or strutting arrangement 12, base 7, solid-state heat storage medium discharge gate 14, liquid heat transfer medium outlet 13 and liquid heat transfer medium filter 15.
In advance, close solid heat storage medium discharge gate 14 and the liquid heat transfer medium outlet 13 of packed bed bottom, fill solid heat storage medium 5, and make the top of solid heat storage medium and spray equipment 3 there is certain height.Logical pressure mouth 8 in logical pressure mouth 2 in packed bed heat-insulation layer 6 and packed bed inner casing 11 is connected with extraneous voltage-stabilizing system simultaneously, pressure in extraneous voltage-stabilizing system is more than or equal to the pressure in heat-insulation layer 6 and inner casing 11, guarantees that gas or the liquid in heat-insulation layer 6 and inner casing 11 can not enter in extraneous voltage-stabilizing system.
When the accumulation of heat of fountain packed bed regenerative apparatus, middle high-temperature liquid state heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, pass through spray equipment 3, make liquid heat transfer medium be atomized into fine droplets/or form some thin fluid columns, contact and carry out heat exchange with the top of the solid heat storage medium 5 of packed bed inside uniformly.Under Action of Gravity Field, liquid heat transfer medium is by the space 4 between solid heat storage medium 5, evenly downward simultaneously, through 5 surface the heat exchange with it of solid heat storage medium, high temperature heat is passed to solid heat storage medium 5; Liquid heat transfer medium is cooled, and the filter 15 by packed bed bottom is from exporting 13 discharges, controls the valve opening of packed bed outlet at bottom 13 simultaneously, makes the liquid holdup of liquid heat transfer medium of packed bed inside at below 50% of packed bed space.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that fountain packed bed regenerative apparatus has held full, close entering of liquid heat transfer medium, finish accumulation of heat.
When if fountain packed bed regenerative apparatus has stored certain heat and started holding stage, close heat-transfer fluid import 1 and the outlet 13 of this regenerative apparatus top and bottom.
During as fountain packed bed regenerative apparatus heat release, low temperature liquid heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, pass through spray equipment 3, make liquid heat transfer medium be atomized into fine droplets/or some thin fluid columns, contact and carry out heat exchange with the top of the solid heat storage medium 5 of packed bed inside uniformly.Simultaneously, under Action of Gravity Field, liquid heat transfer medium is by the space 4 between solid heat storage medium, evenly downward, through 5 surface the heat exchange with it of solid heat storage medium, solid heat storage medium 5 by the high-grade thermal energy transfer storing to liquid heat transfer medium; After heat-transfer fluid is heated, and the filter 15 by packed bed bottom is from exporting 13 discharges.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that the stored heat energy of fountain packed bed regenerative apparatus released.Close the import 1 of liquid heat transfer medium, finish heat release.
When needing to discharge or changing packed bed solid heat storage medium, close the import 1 of liquid heat transfer medium, by the outlet 13 of liquid heat transfer medium, discharge after heat transfer medium, open discharge gate 14 solid heat storage medium is discharged.
As shown in Figure 2, for fountain packed bed regenerative apparatus embodiment 2 of the present utility model, in this embodiment, the liquid heat transfer medium import 1 at packed bed top is threaded connection form and is connected with dismounting spraying shower device 3, a mouth spray 9 in slab construction center only in dismounting spraying shower device 3, with the angle of horizontal plane be 90 °, spraying track is that spray angle is the atomized drop of 30 ° to 120 °, as shown in Figure 2.Wherein, comprise and logically in logical pressure in packed bed inner casing 11, inner casing bracing or strutting arrangement 12, packed bed shell 10, the heat-insulation layer between between packed bed inner casing and shell 6, packed bed heat-insulation layer mouthfuls 2, packed bed inner casing press mouthfuls 8, solid heat storage medium 5, base 7, solid-state heat storage medium discharge gate 14, liquid heat transfer medium outlet 13 and liquid heat transfer medium filter 15.
In advance, close solid heat storage medium discharge gate 14 and the liquid heat transfer medium outlet 13 of packed bed bottom, fill solid heat storage medium 5, and make the top of solid heat storage medium and spray equipment 3 there is certain height.Logical pressure mouth 8 in logical pressure mouth 2 in packed bed heat-insulation layer and packed bed inner casing is connected with extraneous voltage-stabilizing system simultaneously, is consistent with the pressure in voltage-stabilizing system.
When the accumulation of heat of fountain packed bed regenerative apparatus, middle high-temperature liquid state heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, by spray equipment 3, make liquid heat transfer medium be atomized into fine droplets, evenly spray solid heat storage medium 5 tops heat exchange with it to packed bed inside.Under Action of Gravity Field, liquid heat transfer medium is by the space 4 between solid heat storage medium 5, evenly downward simultaneously, through 5 surface the heat exchange with it of solid heat storage medium, high temperature heat is passed to solid heat storage medium 5; Liquid heat transfer medium is cooled, and the filter 15 by packed bed bottom is from exporting 13 discharges, controls the valve opening of packed bed outlet at bottom 13 simultaneously, makes the liquid holdup of liquid heat transfer medium of packed bed inside at below 50% of packed bed space.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that fountain packed bed regenerative apparatus has held full, close entering of liquid heat transfer medium, finish accumulation of heat.
When if fountain packed bed regenerative apparatus has stored certain heat and started holding stage, close heat-transfer fluid import 1 and the outlet 13 of this regenerative apparatus top and bottom.
During as fountain packed bed regenerative apparatus heat release, cryogenic heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, by spray equipment 3, make liquid heat transfer medium be atomized into fine droplets, uniformly with the also heat exchange with it of top of the solid heat storage medium 5 of packed bed inside.Simultaneously, under Action of Gravity Field, liquid heat transfer medium is by the space 4 between solid heat storage medium, evenly downward, through 5 surface the heat exchange with it of solid heat storage medium, solid heat storage medium 5 by the high-grade thermal energy transfer storing to liquid heat transfer medium; After heat-transfer fluid is heated, and the filter 15 by packed bed bottom is from exporting 13 discharges.When the discharge temperature of heat transfer medium reaches a certain design temperature, think that the stored heat energy of fountain packed bed regenerative apparatus released.Close the import 1 of liquid heat transfer medium, finish heat release.
When needing to discharge or changing packed bed solid heat storage medium, close the import 1 of liquid heat transfer medium, by the outlet 13 of liquid heat transfer medium, discharge after heat transfer medium, open discharge gate 14 solid heat storage medium is discharged.
As shown in Figure 3, for fountain packed bed regenerative apparatus embodiment 3 of the present utility model, in this embodiment, the liquid heat transfer medium import 1 at packed bed top is threaded connection form and is connected with the plank frame 3 of dismounting spraying shower device, has several mouth sprays 9 in dismounting spraying shower device; Arrangement mode is arranged for take several concentric circles that dull and stereotyped center is the center of circle, and mouth spray is evenly distributed on concentric circles; And the track that the mouth spray at slab construction 3 centers sprays is that spray angle is the atomized drop of 30 ° to 120 °, and the angle of mouth spray and horizontal plane is 90 °, the track that remaining mouth spray sprays is fluid column, the scope of the angle of mouth spray and horizontal plane is 30 ° to 60 °, as shown in Figure 3.Wherein, comprise and logically in logical pressure in flange connecting apparatus 10, packed bed inner casing 12, inner casing bracing or strutting arrangement 13, packed bed shell 11, the heat-insulation layer between between packed bed inner casing and shell 6, packed bed heat-insulation layer mouthfuls 2, packed bed inner casing press mouthfuls 8, solid heat storage medium 5, base 7, solid-state heat storage medium discharge gate 14, liquid heat transfer medium outlet 16 and liquid heat transfer medium filter 15.
In advance, close solid-state heat storage medium discharge gate 14 and the liquid heat transfer medium outlet 16 of packed bed bottom, fill solid heat storage medium 5, and make the top of solid heat storage medium and spray equipment 3 there is certain height.Logical pressure mouth 8 in logical pressure mouth 2 in packed bed heat-insulation layer and packed bed inner casing is connected with extraneous voltage-stabilizing system simultaneously, is consistent with the pressure in extraneous voltage-stabilizing system.
When the accumulation of heat of fountain packed bed regenerative apparatus, middle high-temperature liquid state heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, pass through spray equipment 3, make liquid heat transfer medium be atomized into fine droplets/or form some thin fluid columns, evenly spray to the top layer of the solid heat storage medium 5 of packed bed inside and carry out heat exchange.Under Action of Gravity Field, liquid heat transfer medium is by the space 4 between solid heat storage medium 5, evenly downward simultaneously, through 5 surface the heat exchange with it of solid heat storage medium, high temperature heat is passed to solid heat storage medium 5; Liquid heat transfer medium is cooled, and the filter 15 by packed bed bottom is from exporting 16 discharges, controls the valve opening of packed bed outlet at bottom 16 simultaneously, makes the liquid holdup of liquid heat transfer medium of packed bed inside at below 50% of packed bed space.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that fountain packed bed regenerative apparatus has held full, close entering of liquid heat transfer medium, finish accumulation of heat.
When if fountain packed bed regenerative apparatus has stored certain heat and started holding stage, close heat-transfer fluid import 1 and the outlet 16 of this regenerative apparatus top and bottom.
During as fountain packed bed regenerative apparatus heat release, low temperature liquid heat transfer medium is entered by packed bed top import 1, under the effect of pressure differential, pass through spray equipment 3, make liquid heat transfer medium be atomized into fine droplets/or form some thin fluid columns, contact and carry out heat exchange with the top of the solid heat storage medium 5 of packed bed inside uniformly.Simultaneously, under Action of Gravity Field, liquid heat transfer medium is by the space between solid heat storage medium, evenly downward, through 5 surface the heat exchange with it of solid heat storage medium, solid heat storage medium 5 by the high-grade thermal energy transfer storing to liquid heat transfer medium; After heat-transfer fluid is heated, and the filter 15 by packed bed bottom is from exporting 16 discharges.When the discharge temperature of liquid heat transfer medium reaches a certain design temperature, think that the stored heat energy of fountain packed bed regenerative apparatus released.Close the import 1 of liquid heat transfer medium, finish heat release.
When needing to discharge or changing packed bed solid heat storage medium, close the import 1 of liquid heat transfer medium, by the outlet 16 of liquid heat transfer medium, discharge after heat transfer medium, open discharge gate 14 solid heat storage medium is discharged.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in scope of the present utility model.
Claims (10)
1. a fountain packed bed regenerative apparatus, the solid heat storage Filled Dielectrics bed that described regenerative apparatus comprises housing and is filled in described enclosure interior, is characterized in that,
Described regenerative apparatus also comprises liquid heat-transfer medium import and the spray equipment that is arranged on described case top, the entrance point of described liquid heat-transfer medium import is positioned at outside described housing, the port of export is connected with the spray equipment that is positioned at described housing, described spray equipment comprises liquid heat-transfer medium container cavity, and its bottom arranges at least one mouth spray;
Described housing comprises heavy wall shell, heat-insulation layer, thin-walled inner casing from outside to inside successively, wherein, described heavy wall shell is pressure-containing member, described thin-walled inner casing is attachment of nonpressure parts, described thin-walled inner casing is not communicated with heat-insulation layer, on described thin-walled inner casing and heat-insulation layer, be respectively provided to the few one logical pressure mouthful being communicated with extraneous voltage-stabilizing system by pipeline, the pressure of described extraneous voltage-stabilizing system is at least more than or equal to the pressure in described thin-walled inner casing and in heat-insulation layer.
2. fountain packed bed regenerative apparatus according to claim 1, it is characterized in that, described regenerative apparatus also comprises at least one solid-state heat storage medium charging aperture, at least one liquid heat transfer medium outlet in bottom, at least one solid-state heat storage medium discharge gate, and the port of export or the arrival end of the liquid heat transfer medium outlet in described bottom have at least a place that sedimeter is housed; Described extraneous voltage-stabilizing system comprises pressure source and pressure-control valve.
3. fountain packed bed regenerative apparatus according to claim 1, is characterized in that, between described heavy wall shell and thin-walled inner casing, establishes inner casing bracing or strutting arrangement.
4. fountain packed bed regenerative apparatus according to claim 1, is characterized in that, the wall thickness of described thin-walled inner casing is less than 1/2 of heavy wall shell, and the thickness range of described heat-insulation layer is 10mm-1000mm.
5. fountain packed bed regenerative apparatus according to claim 1, is characterized in that, described housing comprises interconnective upper cover and body, described upper cover and the connected mode of body be non-detachable welding be connected/or detachable flange connect.
6. fountain packed bed regenerative apparatus according to claim 5, is characterized in that, described housing also comprises the low head being connected with body, described low head and the connected mode of body be non-detachable welding be connected/or detachable flange connect.
7. according to the fountain packed bed regenerative apparatus described in claim 5 or 6, it is characterized in that, described spray equipment, for fixing/or dismountable spray equipment, is placed in described upper cover, or with described upper cover Integral design; For dismountable spray equipment, during use, select according to actual needs installation or removal to fall spray equipment, disassemble after spray equipment, liquid heat-transfer medium is directly sprayed onto on the solid heat storage medium on described solid heat storage Filled Dielectrics bed by described liquid heat-transfer medium import.
8. fountain packed bed regenerative apparatus according to claim 7, is characterized in that, described spray equipment and liquid heat transfer medium import are one-body molded, or described spray equipment and liquid heat transfer medium import are two interconnective parts.
9. fountain packed bed regenerative apparatus according to claim 1, it is characterized in that, during work, described thin-walled inner casing and heat-insulation layer are communicated with extraneous voltage-stabilizing system by logical pressure mouthful separately, and the pressure of described extraneous voltage-stabilizing system is at least more than or equal to the pressure in described thin-walled inner casing and in heat-insulation layer; During inoperative, described thin-walled inner casing and heat-insulation layer logical presses mouth all to disconnect and being communicated with of extraneous voltage-stabilizing system, and and external environment connect, being consistent with ambient pressure environment in described thin-walled inner casing and heat-insulation layer.
10. fountain packed bed regenerative apparatus according to claim 1, it is characterized in that, described spray equipment is orifice-plate type structure, when described spray equipment only arranges single mouth spray, this single mouth spray is positioned at the center of plank frame, when a plurality of mouth spray is set, the plurality of mouth spray is interval homogeneous texture, described in each mouth spray and horizontal plane angle at 30 ° within the scope of 90 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320368818.XU CN203479116U (en) | 2013-06-25 | 2013-06-25 | Spray-type packed bed heat storage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320368818.XU CN203479116U (en) | 2013-06-25 | 2013-06-25 | Spray-type packed bed heat storage device |
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| CN203479116U true CN203479116U (en) | 2014-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486135A (en) * | 2015-12-31 | 2016-04-13 | 河南东大高温节能材料有限公司 | Sensible heat-latent heat composite heat storage unit with gas as heat transfer fluid |
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2013
- 2013-06-25 CN CN201320368818.XU patent/CN203479116U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486135A (en) * | 2015-12-31 | 2016-04-13 | 河南东大高温节能材料有限公司 | Sensible heat-latent heat composite heat storage unit with gas as heat transfer fluid |
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