CN103075906A - High-pressure heat-storing/or cold-storing device - Google Patents
High-pressure heat-storing/or cold-storing device Download PDFInfo
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- CN103075906A CN103075906A CN2013100424678A CN201310042467A CN103075906A CN 103075906 A CN103075906 A CN 103075906A CN 2013100424678 A CN2013100424678 A CN 2013100424678A CN 201310042467 A CN201310042467 A CN 201310042467A CN 103075906 A CN103075906 A CN 103075906A
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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
-
- 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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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a high-pressure heat-storing/or cold-storing device, which belongs to the field of high/low-temperature thermal energy storage. The high-pressure heat-storing/or cold-storing device is characterized in that an outer shell is used for bearing a high pressure; a cooling/heating liquid layer, a heat-preserving layer, a thin wall inner shell and an internal solid heat/cold storing medium are arranged in sequence from outside to inside; a solid material is taken as a heat/cold storing medium; and a high-pressure heat transfer medium flows through the surface of the heat/cold storing medium and undergoes heat exchange. The heat-storing/or cold-storing device disclosed by the invention has the advantages of high bearing pressure, low manufacturing cost, high efficiency, high thermal energy grade and the like, and is particularly suitable for heat-storing/or cold-storing occasions with large heat/cold storing and releasing temperature differences and frequent heat/cold storing and releasing.
Description
Technical field
The present invention relates to high/low warm energy storage art, is that a kind of solid storage hot/cold medium that utilizes stores the high/low warm device that can and discharge when needed.
Background technology
A kind of high pressure heat accumulation/accumulator disclosed by the invention is put the UTILIZATION OF VESIDUAL HEAT IN that can be applicable to industrial process, and solar energy/wind energy heat energy stores, power peak regulation thermmal storage, advanced compressed-air energy-storage system etc.
Heat accumulation/refrigeration technique be effectively solve hot/cold can supply and demand between on the time and space unmatched contradiction, improve the effective means of energy utilization rate.Its mesohigh heat accumulation/refrigeration technique is mainly used in the heat accumulation under the condition of high voltage and/or stores up coldly, is industrial exhaust heat utilization, solar energy/wind energy heat energy utilization, power peak regulation thermmal storage, the key technology of advanced air energy-storage system etc.
At present, high/low temperature heat insulating construction commonly used has the thermal insulation of accumulation, vacuum-powders insulation, vacuum multilayer to pile up thermal insulation and malleation is piled up thermal insulation etc., adopt the insulated storage tank of these heat insulating constructions and storage tank all to adopt heat-insulation layer to be arranged on the scheme of pressure-bearing tank skin outside, and resistance to compression is lower usually.If adopting this type of heat insulating construction to make high pressure heat accumulation/accumulator puts, then need the pressure vessel of heavy wall as ladle bowl, the tank skin thermal capacitance also will significantly increase simultaneously, so that in the process of storage hot/cold, need a large amount of hot/colds can cool off tank skin, this part hot/cold can but be difficult to reclaim, and heat accumulation/cold efficiency is significantly reduced.In addition, these storage tanks usually only store as high/low temperature fluid media (medium) and use, and do not fill solid dielectric and are used for the storage hot/cold.
Summary of the invention
The invention provides a kind of shell and bear high pressure, be followed successively by from outside to inside cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inner solid storage hot/cold medium, utilize solid material as storage hot/cold medium, the high pressure heat transfer medium flows through the high pressure heat accumulation/accumulator that stores up the hot/cold dielectric surface and heat exchange occurs to be put.With existing interior pressure-bearing, the high pressure storage tank of outer insulation is compared, and has the advantages that heat accumulation/the storage cold efficiency is high.
Technical solution of the present invention is:
A kind of high pressure heat accumulation/accumulator is put, it is characterized in that, described high pressure heat accumulation/accumulator is put and is comprised successively from outside to inside the inner solid heat-storage medium of filling of heavy wall shell, cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inner casing, establishes the inner casing bracing or strutting arrangement between the inside and outside shell; The wall thickness of described inner casing is less than 1/2 of shell; Described heat-insulation layer is the insulation material that porosity is high, thermal conductivity factor is low, is provided with pressure communication means between heat-insulation layer and the inner casing, so that described heat-insulation layer communicates with the inner casing internal pressure, the heavy wall shell is to bear high interior pressure vessel of pressing; Described cooling/heating liquid layer is the inner sandwich that contains a plurality of passages, pass into the cooling/heating liquid that circulates in each passage, make the case pres-sure inner surface of container all can be subject to cooling/heating, fluid pressure and inner casing internal pressure in the cooling/heating liquid layer are consistent; Fluid heat transfer medium contacts with the solid heat-storage medium, and on solid heat-storage medium surface heat exchange occurs.
Described high pressure heat accumulation/accumulator is put, it is characterized in that, described high pressure heat accumulation/accumulator is put and is comprised at least one top fed mouth, at least one bottom discharging mouth, at least one top heat transfer medium mouth of pipe, at least one bottom heat transfer medium mouth of pipe, at least one cooling/heating liquid top mouth of pipe and a cooling/heating liquid bottom mouth of pipe.
Described cooling/heating liquid layer inside has cooling/heating liquid constantly to flow, and makes skin temperature constant, to guarantee the intensity of pressure vessel.Described cooling/heating liquid layer is the structures such as interlayer that contain a plurality of passages, guarantees that the case pres-sure inner surface of container all can be subject to cooling/heating.
Described cooling/heating liquid is wherein a kind of or at least two kinds the mixture of water, ethanol, ethylene glycol, propyl alcohol, and circulating by liquid pump of described cooling/heating liquid drives, and its pressure and heat accumulation/accumulator are put internal pressure and be consistent.
Described high pressure heat accumulation/accumulator top set section's charging aperture and the top heat transfer medium mouth of pipe can be same opening, and described high pressure heat accumulation/accumulator bottom set section's discharge gate and the bottom heat transfer medium mouth of pipe can be same opening.
The thin-walled inner shell materials that described high pressure heat accumulation/accumulator is put is for such as the metal material of steel, aluminium, titanium etc., and the heavy wall sheathing material is such as the metal material of steel, aluminium, titanium etc. or such as the nonmetallic materials of fiberglass, prestressed concrete etc.
Described high pressure heat accumulation/accumulator is put modes such as adopting pipeline and is connected inner casing inside and heat preservation sandwich layer, makes it pressure balance.
Described heat transfer medium is wherein a kind of or at least two kinds the mixture such as the air, nitrogen, oxygen, helium, hydrogen, methane, water vapour of liquid, gaseous state or above-critical state.
Described solid heat-storage medium is graininess or porous material, is rock, ore, and slag, concrete, refractory brick, Ceramic Balls, metal, the phase-change material of encapsulation etc. be a kind of or at least two kinds mixture wherein.
Described heat-insulation layer is the insulation material that porosity is high, thermal conductivity factor is low, such as one or more the mixture wherein such as rock wool, pearlife, glass mat.
Described pressure communication means is to be arranged on the perforate on the inner casing wall or an end is communicated with heat-insulation layer, the other end is communicated with inner casing connecting pipe, so that described heat-insulation layer communicates with the inner casing internal pressure, makes it pressure balance.Preferably, described logical pressure pipeline one end is communicated with the top heat transfer medium mouth of pipe, the other end passes the heavy wall shell and the cooling/heating liquid layer after be communicated with heat-insulation layer.
The supporting way of described inner casing bracing or strutting arrangement be annular support, multi-point support etc. wherein one or more, backing material can be for stable performance, thermal conductivity factor is low, compression strength is higher such as metal materials such as steel, titaniums or such as nonmetallic materials such as fiberglass, resins.
Preferably, described solid storage hot/cold medium is that volumetric heat capacity is high, with low cost, thermomechanical property stable, heat transfer medium is absorbed the material that permeability is low, porosity is low, specific area is high.
Preferably, described high pressure heat accumulation/accumulator is put a plurality of thermal insulation layers from top to bottom is set, and this thermal insulation layer allows heat transfer medium freely to pass through, and described thermal insulation layer can reduce the axial thermal conductivity of internal solids storage hot/cold medium and heat-transfer fluid.
Preferably, between the wall shell that described high pressure heat accumulation/accumulator is put and the heat-insulation layer certain thickness space is set, the pressure transmission speed of heat preservation sandwich layer inside can be improved in described space.
Preferably, described high pressure heat accumulation/accumulator is put, and inside can arrange one or more heat-exchanger rigs with supplemental heat/cold, and heat-exchanger rig can be one or more mixing of helical bundle, plain tube tube bank, finned tube tube bank or coil pipe tube bank.
Preferably, described high pressure heat accumulation/accumulator is put, and heat transfer medium import and/or outlet can arrange one or more spoilers so that heat-transfer fluid evenly flows into, and spoiler can be one or both mixing such as porous plate, flow-stopping plate.
Use flow process as the high pressure heat-storing device is:
In advance, close the heat-storage medium outlet of bottom, the charging aperture of solid heat-storage medium by the top is filled in the high pressure heat-storing device inner casing, to predetermined altitude.Start the liquid pump of cooling fluid, make cooling fluid in flowing coating of cooling liquid in certain flow velocity current downflow.
During heat accumulation, the HTHP heat transfer medium is entered by the heat transfer medium mouth of pipe at high pressure heat-storing device top.Behind the spoiler through the top mouth of pipe, heat transfer medium is evenly downward, by the space between the solid heat-storage medium, through solid heat-storage medium surface and with it heat exchange, high temperature heat is passed to solid dielectric; Heat-transfer fluid is cooled simultaneously, is discharged by the heat transfer medium mouth of pipe of high pressure heat-storing device bottom.When the discharge temperature of heat transfer medium reaches a certain design temperature, think that heat energy has stored up full, close entering of heat transfer medium, finish heat accumulation.In the heat accumulation process, packed bed internal temperature field forms top-down thermal stratification.
If the high pressure heat-storing device has stored certain heat, during the beginning holding stage, the heat transfer medium mouth of pipe of closing high pressure heat-storing device top and bottom.
During heat release, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe of high pressure heat-storing device bottom.Behind the spoiler through the bottom mouth of pipe, heat transfer medium evenly makes progress, and by the space between the solid heat-storage medium, through solid heat-storage medium surface and with it heat exchange, absorbs the heat energy in the solid heat-storage medium; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe at high pressure heat-storing device top.When the discharge temperature of heat transfer medium is down to a certain design temperature, think that heat energy discharges complete, finish heat release.In the heat release process, the axial stratification of packed bed internal temperature field is constantly upwards passed.
The use flow process of putting as the high pressure accumulator is:
In advance, close the cold storage material outlet of bottom, the charging aperture of solid cold storage material by the top is filled into the high pressure accumulator puts in the inner casing, to predetermined altitude.Start the liquid pump of heating fluid, make heating fluid the heating liquid layer in certain flow velocity current downflow.
Store up when cold, the cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe of high pressure accumulator bottom set section.Behind the spoiler through the bottom mouth of pipe, heat transfer medium evenly upwards flows, and by the space between the solid cold storage material, through solid cold storage material surface and with it heat exchange, cryogenic cold energy is passed to solid dielectric; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe of high pressure accumulator top set section.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, finish storage cold.Store up in the cold process, store up in the cold process, packed bed internal temperature field forms top-down thermal stratification.
If the high pressure accumulator is put and is stored certain cold, during the beginning holding stage, the heat transfer medium mouth of pipe of closing high pressure accumulator top set section and bottom.
Release when cold, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe of high pressure accumulator top set section.Behind the spoiler through the top mouth of pipe, heat transfer medium evenly flows downward, and by the space between the solid cold storage material, through solid cold storage material surface and with it heat exchange, absorbs the cryogenic cold energy of solid cold storage material; Heat-transfer fluid temperature reduces, and is discharged by the heat transfer medium mouth of pipe of high pressure accumulator bottom set section.When the discharge temperature of heat transfer medium rises to a certain design temperature, think that cold energy has discharged complete, finish to release cold.Release in the cold process, the axial stratification of packed bed internal temperature field is constantly passed downwards.
Heat accumulation/accumulator of the present invention is put has that the pressure of bearing is high, cost is low, efficient is high, heat energy grade advantages of higher, be specially adapted to store up release that the hot/cold temperature difference is large, heat accumulation is released more frequently in storage and/or store up cold occasion.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2;
Fig. 3 is the structural representation of the embodiment of the invention 3.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Embodiment 1
As shown in Figure 1, for high pressure heat accumulation/accumulator of the present invention is put embodiment 1, among this embodiment, top fed mouth and the top heat transfer medium mouth of pipe are same opening, and bottom discharging mouth and the bottom heat transfer medium mouth of pipe are same opening.Wherein, comprise base 1, the heat transfer medium mouth of pipe 2 bottom the bottom discharging mouth is held concurrently, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, heavy wall shell 5, cooling/heating liquid layer 6, heat-insulation layer 7, thin-walled inner casing 8, solid storage hot/cold medium 9, top porous flow-stopping plate 10, the top fed mouth top heat transfer medium mouth of pipe 11 of holding concurrently, logical pressure pipeline 12, the top cooling/heating liquid mouth of pipe 13, the bottom coohng/heating fluid mouth of pipe 14.Logical pressure pipeline 12 1 ends are communicated with the top heat transfer medium mouth of pipe 11, the other end passes heavy wall shell 5 and cooling/heating liquid layer 6 is communicated with heat-insulation layer 7 afterwards.The wall thickness of inner casing 8 is less than 1/2 of shell 5; Heat-insulation layer 7 is the insulation material that porosity is high, thermal conductivity factor is low, be provided with pressure communication means between heat-insulation layer 7 and the inner casing 8, so that the logical pressure pipeline 12 between described heat-insulation layer and the inner casing is so that the two internal pressure communicates, heavy wall shell 5 is for bearing the pressure vessel of pressing in high; Cooling/heating liquid layer 6 is the inner sandwich that contains a plurality of passages, pass into the cooling/heating liquid that circulates in each passage, make the case pres-sure inner surface of container all can be subject to cooling/heating, circulating by liquid pump of described cooling/heating liquid drives, so that fluid pressure and inner casing internal pressure in the cooling/heating liquid layer 6 are consistent; Fluid heat transfer medium contacts with the solid heat-storage medium, and on solid heat-storage medium surface heat exchange occurs.High pressure heat accumulation/cool storage container of the present invention can bear the high pressure of 1MPa ~ 40Mpa.
In advance, close the discharge gate 2 of bottom, solid is stored up the charging aperture 11 of hot/cold medium 9 by the top be filled into during high pressure heat accumulation/accumulator puts, to predetermined altitude.Start the liquid pump of cooling fluid, make cooling fluid enter cooling/heating liquid layer 6 through bottom coohng/heating fluid mouth of pipe 14, conduct heat complete rear by 13 outflows of the top cooling/heating liquid mouth of pipe.
During heat accumulation, the HTHP heat transfer medium is entered by the top heat transfer medium mouth of pipe 11.Behind top porous flow-stopping plate 10, heat transfer medium is evenly downward, and high temperature heat is passed to solid heat-storage medium 9; Heat-transfer fluid is cooled simultaneously, discharges through the heat transfer medium mouth of pipe 2 of high pressure heat-storing device bottom.When the discharge temperature of heat transfer medium reaches a certain design temperature, think that heat energy has stored up full, close entering of heat transfer medium, finish heat accumulation.
During heat release, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 of high pressure heat-storing device bottom.Behind bottom porous flow-stopping plate 3, heat transfer medium evenly makes progress, and absorbs the heat of solid heat-storage medium 9; Heat-transfer fluid temperature raises, and discharges through the heat transfer medium mouth of pipe 11 at high pressure heat-storing device top.When the discharge temperature of heat transfer medium is down to a certain design temperature, think that heat energy has discharged complete, finish heat release.
Put Chu Lengshi as the high pressure accumulator, the cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 of high pressure accumulator bottom set section.Behind bottom porous flow-stopping plate 3, heat transfer medium evenly upwards flows, and cryogenic cold energy is passed to solid heat-storage medium 9; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe 11 of high pressure accumulator top set section.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, finish storage cold.
Release when cold, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 11 of high pressure accumulator top set section.Behind the spoiler 9 through the top mouth of pipe, heat transfer medium evenly flows downward, and absorbs the cryogenic cold energy of solid cold storage material 9; Heat-transfer fluid temperature reduces, and is discharged by the heat transfer medium mouth of pipe 2 of high pressure accumulator bottom set section.When the discharge temperature of heat transfer medium rises to a certain design temperature, think that the high pressure accumulator is put and discharge completely, finish to release cold.
As shown in Figure 2, for high pressure heat accumulation/accumulator of the present invention is put embodiment 2, top fed mouth and the top heat transfer medium mouth of pipe are different openings among this embodiment, and bottom discharging mouth and the bottom heat transfer medium mouth of pipe are different openings.Wherein, comprise base 1, the bottom heat transfer medium mouth of pipe 2, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, heavy wall shell 5, cooling/heating liquid layer 6, heat-insulation layer 7, thin-walled inner casing 8, solid storage hot/cold medium 9, top porous flow-stopping plate 10, the top heat transfer medium mouth of pipe 11, logical pressure pipeline 12, top fed mouth 15, the top cooling/heating liquid mouth of pipe 13, bottom coohng/heating fluid the mouth of pipe 14, bottom discharging mouth 16.Logical pressure pipeline 12 1 ends are communicated with the top heat transfer medium mouth of pipe 11, the other end passes heavy wall shell 5 and cooling/heating liquid layer 6 is communicated with heat-insulation layer 7 afterwards.
In advance, close the discharge gate 2 of bottom, solid is stored up the charging aperture 11 of hot/cold medium 9 by the top be filled into during high pressure heat accumulation/accumulator puts, to predetermined altitude.Start the liquid pump of cooling fluid, make cooling fluid enter cooling/heating liquid layer 6 through bottom coohng/heating fluid mouth of pipe 14, conduct heat complete rear by 13 outflows of the top cooling/heating liquid mouth of pipe.
During as high pressure heat-storing device heat accumulation, the HTHP heat transfer medium is entered by the top heat transfer medium mouth of pipe 11.Behind top porous flow-stopping plate 10, heat transfer medium is evenly downward, and high temperature heat is passed to solid heat-storage medium 9; Heat-transfer fluid is cooled simultaneously, is discharged by the heat transfer medium mouth of pipe 3 of high pressure heat-storing device bottom.When the discharge temperature of heat transfer medium reaches a certain design temperature, think that heat energy has stored up full, close entering of heat transfer medium, finish heat accumulation.
During heat release, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 of high pressure heat-storing device bottom.Behind bottom porous flow-stopping plate 3, heat transfer medium evenly makes progress, and absorbs the heat of solid heat-storage medium 9; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe 11 at high pressure heat-storing device top.When the discharge temperature of heat transfer medium is down to a certain design temperature, think that heat energy has discharged complete, finish heat release.
Put Chu Lengshi as the high pressure accumulator, the cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 of high pressure accumulator bottom set section.Behind bottom porous flow-stopping plate 3, heat transfer medium evenly upwards flows, and cryogenic cold energy is passed to solid cold storage material 9; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe 11 of high pressure accumulator top set section.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, finish storage cold.
Release when cold, the high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 11 of high pressure accumulator top set section.Behind the spoiler 10 through the top mouth of pipe, heat transfer medium evenly flows downward, and absorbs the cryogenic cold energy of solid cold storage material 9; Heat-transfer fluid temperature reduces, and is discharged by the heat transfer medium mouth of pipe 2 of high pressure accumulator bottom set section.When the discharge temperature of heat transfer medium rises to a certain design temperature, think that cold energy has discharged complete, finish to release cold.
As shown in Figure 3, put embodiment 3 for high pressure heat accumulation/accumulator of the present invention, be the improvement of example 1, among this embodiment, high pressure heat accumulation/accumulator is put inner in the vertical direction and is arranged heat exchanger tube/tube bank.In links such as storage, release and insulations, the high/low temperature heat-transfer fluid of different pressures can pass through heat exchanger tube/tube bank, is interior reservoir hot/cold medium supplemental heat/cold.
Wherein, comprise base 1, the heat transfer medium mouth of pipe 2 bottom the bottom discharging mouth is held concurrently, bottom coohng/heating fluid the mouth of pipe 14, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, heavy wall shell 5, cooling/heating liquid layer 6, heat-insulation layer 7; thin-walled inner casing 8, solid storage hot/cold medium 9, top porous flow-stopping plate 10; the top fed mouth top heat transfer medium mouth of pipe 11 of holding concurrently, logical pressure pipeline 12, the heat exchanger tube/tube bank top mouth of pipe 19; the top cooling/heating liquid mouth of pipe 13, heat exchanger tube/tube bank 18, the mouth of pipe 17 bottom heat exchanger tube/tube bank.Logical pressure pipeline 12 1 ends are communicated with the top heat transfer medium mouth of pipe 11, the other end passes heavy wall shell 5 and cooling/heating liquid layer 6 is communicated with heat-insulation layer 7 afterwards.
The storage hot/cold process that high pressure heat accumulation/accumulator is put is identical with example 1.
When needs during for high pressure heat-storing device interior reservoir thermal medium additional heat, extra heat-transfer fluid enters heat exchanger tube/tube bank 18 inside through heat exchanger tube/tube bank top mouth of pipe 19, by heat exchanger tube/tube bank wall with thermal energy transfer to internal solids heat-storage medium 9, after temperature reduces through the heat exchanger tube/tube bank bottom mouth of pipe 17 outflows.
When needs are put the additional cold of inner cold storage material for the high pressure accumulator, extra heat-transfer fluid enters heat exchanger tube/tube bank 18 inside through heat exchanger tube/tube bank bottom mouth of pipe 17, by heat exchanger tube/tube bank wall cold energy is passed to internal solids heat-storage medium 9, flow out through heat exchanger tube/tube bank top mouth of pipe 19 after temperature raises.
Above specific embodiment to invention is described in detail, but it is as example, and the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that this invention is carried out and substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (10)
1. a high pressure heat accumulation/accumulator is put, it is characterized in that, described high pressure heat accumulation/accumulator is put and is comprised successively from outside to inside the inner solid heat-storage medium of filling of heavy wall shell, cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inner casing, establishes the inner casing bracing or strutting arrangement between the inside and outside shell; The wall thickness of described inner casing is less than 1/2 of shell; Described heat-insulation layer is the insulation material that porosity is high, thermal conductivity factor is low, is provided with pressure communication means between heat-insulation layer and the inner casing, so that described heat-insulation layer communicates with the inner casing internal pressure, the heavy wall shell is to bear high interior pressure vessel of pressing; Described cooling/heating liquid layer is the inner sandwich that contains a plurality of passages, pass into the cooling/heating liquid that circulates in each passage, make the case pres-sure inner surface of container all can be subject to cooling/heating, fluid pressure and inner casing internal pressure in the cooling/heating liquid layer are consistent; Fluid heat transfer medium contacts with the solid heat-storage medium, and on solid heat-storage medium surface heat exchange occurs.
2. a kind of high pressure heat accumulation/accumulator according to claim 1 is put, it is characterized in that, described high pressure heat accumulation/accumulator is put and is comprised at least one top fed mouth, at least one bottom discharging mouth, at least one top heat transfer medium mouth of pipe, at least one bottom heat transfer medium mouth of pipe, at least one cooling/heating liquid top mouth of pipe and a cooling/heating liquid bottom mouth of pipe.
3. a kind of high pressure heat accumulation/accumulator according to claim 2 is put, it is characterized in that, described high pressure heat accumulation/accumulator top set section's charging aperture and the top heat transfer medium mouth of pipe can be same opening, and described high pressure heat accumulation/accumulator bottom set section's discharge gate and the bottom heat transfer medium mouth of pipe can be same opening.
4. put to 3 each described a kind of high pressure heat accumulation/accumulators according to claim 1, it is characterized in that, described cooling/heating liquid is the mixture of a kind of of water, ethanol, ethylene glycol, propyl alcohol or at least two kinds, circulating by liquid pump of described cooling/heating liquid drives, and its pressure and inner casing internal pressure are consistent.
5. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, the material that described high pressure heat accumulation/accumulator is put the thin-walled inner casing is the metal material such as steel, aluminium, titanium etc., and the heavy wall sheathing material is such as the metal material of steel, aluminium, titanium etc. or the nonmetallic materials of fiberglass, prestressed concrete etc.
6. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, described fluid heat transfer medium is air, nitrogen, oxygen, helium, hydrogen, methane, water vapour a kind of or at least two kinds the mixture wherein of liquid, gaseous state or above-critical state.
7. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, described solid heat-storage medium is granular material or porous material, is rock, ore, slag, concrete, refractory brick, heat-storing sphere, metal, the phase-change material of encapsulation etc. be a kind of or at least two kinds mixture wherein.
8. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, described heat-insulation layer is the insulation material that porosity is high, thermal conductivity factor is low, such as one or more the mixture wherein such as rock wool, pearlife, glass mat.
9. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, described pressure communication means is the logical pressure pipeline that perforate or an end are communicated with heat-insulation layer, the other end is communicated with inner casing that is arranged on the inner casing wall, so that described heat-insulation layer communicates with the inner casing internal pressure, make it pressure balance; Preferably, described logical pressure pipeline one end is communicated with the top heat transfer medium mouth of pipe, the other end passes the heavy wall shell and the cooling/heating liquid layer after be communicated with heat-insulation layer.
10. put according to the described a kind of high pressure heat accumulation/accumulator of above-mentioned each claim, it is characterized in that, the supporting way of described inner casing bracing or strutting arrangement be annular support, multi-point support etc. wherein one or more, backing material can be stable performance, and thermal conductivity factor is low, compression strength is higher such as metal materials such as steel, titaniums or such as nonmetallic materials such as fiberglass, resins.
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| CN104654868B (en) * | 2013-11-17 | 2018-06-19 | 成都奥能普科技有限公司 | Solid grain block heat accumulating type Poly-generation unit and locomotive |
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| CN108088294A (en) * | 2016-11-23 | 2018-05-29 | 西门子公司 | Heat exchange system with cooling device and the method that heat is exchanged by using the heat exchange system |
| CN107878948A (en) * | 2017-12-15 | 2018-04-06 | 重庆方盛净化设备有限公司 | Tank wall is provided with the electric heater unit of vertical lattice heat-insulation layer |
| CN109883240A (en) * | 2019-03-25 | 2019-06-14 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of high-temperature cooler circular cross-section shell structure and its design method |
| CN111141056A (en) * | 2019-12-24 | 2020-05-12 | 中国科学院工程热物理研究所 | Heat pump energy storage system based on indirect cold storage and heat storage |
| CN112325693A (en) * | 2020-11-23 | 2021-02-05 | 王龑飞 | Heat exchange device for pesticide production and working method thereof |
| CN113295031A (en) * | 2021-05-27 | 2021-08-24 | 中国科学院理化技术研究所 | Solid-liquid combined cold and heat accumulator and energy storage system |
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