CN103075906B - High-pressure heat-storing/or cold-storing device - Google Patents
High-pressure heat-storing/or cold-storing device Download PDFInfo
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- CN103075906B CN103075906B CN201310042467.8A CN201310042467A CN103075906B CN 103075906 B CN103075906 B CN 103075906B CN 201310042467 A CN201310042467 A CN 201310042467A CN 103075906 B CN103075906 B CN 103075906B
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Classifications
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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 temperature field of thermal energy storage, is that a kind of solid that utilizes stores up hot/cold medium storage high/low temperature heat energy and the device discharged when needed.
Background technology
A kind of high pressure heat accumulation/accumulator disclosed by the invention puts 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 effectively to solve between hot/cold energy supply and demand unmatched contradiction in the time and space, improves the effective means of energy utilization rate.Its mesohigh heat accumulation/refrigeration technique is mainly used in the heat accumulation under condition of high voltage and/or stores up cold, is that industrial exhaust heat utilizes, solar energy/wind energy heat energy utilizes, power peak regulation thermmal storage, the key technology of advanced air energy storage systems etc.
At present, conventional high/low temperature heat insulating construction has accumulation thermal insulation, vacuum-powders insulation, vacuum multi-layer accumulation thermal insulation and malleation accumulation adiabatic, adopt the insulated storage tank of these heat insulating constructions and storage tank all to adopt heat-insulation layer to be arranged on scheme outside pressure-bearing tank skin, and resistance to compression is lower usually.Manufacture high pressure heat accumulation/accumulator according to this type of heat insulating construction to put, then need the pressure vessel of heavy wall as ladle bowl, tank skin thermal capacitance also will significantly increase simultaneously, make to need a large amount of hot/colds to cool tank skin in the process of storage hot/cold, this part hot/cold can but be difficult to reclaim, and heat accumulation/cold efficiency can be made significantly to reduce.In addition, these storage tanks usually only store as high/low temperature fluid media (medium) and use, and do not fill solid dielectric for storing up hot/cold.
Summary of the invention
The invention provides a kind of shell and bear high pressure, be followed successively by the solid storage hot/cold medium of cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inside from outside to inside, utilize solid material as storage hot/cold medium, high pressure heat transfer medium flows through storage hot/cold dielectric surface and high pressure heat accumulation/accumulator that heat exchange occurs is put.With existing interior pressure-bearing, the high pressure storage tank of Surgery therapy is compared, and has the advantages that heat accumulation/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 puts the solid heat-storage medium comprising thick-walled outer envelope, cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inner housing inner from outside to inside successively and fill, and establishes inner casing bracing or strutting arrangement between 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 inner casing, and described heat-insulation layer is communicated with inner housing inner pressure, and thick-walled outer envelope is the pressure vessel bearing high interior pressure; Described cooling/heating liquid layer is the inner sandwich containing multiple passage, the cooling/heating liquid circulated is passed in each passage, make case pres-sure inner surface of container all can be subject to cooling/heating, the fluid pressure in cooling/heating liquid layer and inner housing inner pressure are consistent; Fluid heat transfer medium contacts with 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 its top feed mouth, at least one bottom discharging mouth, at least one tip heat transfer medium mouth of pipe, at least one bottom thermal transfer medium mouth of pipe, the mouth of pipe bottom at least one cooling/heating liquid top mouth of pipe and a cooling/heating liquid.
Described cooling/heating liquid layer inside has cooling/heating liquid constantly to flow, and makes skin temperature constant, to ensure the intensity of pressure vessel.Described cooling/heating liquid layer is the structures such as the interlayer containing multiple passage, ensures that case pres-sure inner surface of container all can be subject to cooling/heating.
Described cooling/heating liquid is the mixture of water, ethanol, ethylene glycol, propyl alcohol wherein a kind of or at least two kinds, and described circulating of cooling/heating liquid is driven by liquid pump, and its pressure and heat accumulation/accumulator are put internal pressure and be consistent.
Described high pressure heat accumulation/accumulator top set portion's charging aperture and the tip heat transfer medium mouth of pipe can be same opening, and described high pressure heat accumulation/accumulator bottom set portion's discharge gate and the bottom thermal 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 the metal material as steel, aluminium, titanium etc., and thick-walled outer envelope material is as the metal material of steel, aluminium, titanium etc. or the nonmetallic materials as fiberglass, prestressed concrete etc.
Described high pressure heat accumulation/accumulator is put modes such as adopting pipeline and is connected inner housing inner and heat preservation sandwich layer, makes it pressure balance.
Described heat transfer medium is the wherein a kind of or mixture of at least two kinds such as 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, slag, concrete, refractory brick, Ceramic Balls, metal, and the phase-change material of encapsulation etc. are a kind of or mixture of at least two kinds wherein.
Described heat-insulation layer is the insulation material that porosity is high, thermal conductivity factor is low, as wherein one or more the mixture such as rock wool, pearlife, glass mat.
Described pressure communication means is the perforate be arranged on inner casing wall or the connecting pipe that one end is communicated with heat-insulation layer, the other end is communicated with inner casing, described heat-insulation layer is communicated with inner housing inner pressure, makes it pressure balance.Preferably, described logical pressure pipeline one end is communicated with the tip heat transfer medium mouth of pipe, the other end is communicated with heat-insulation layer with after cooling/heating liquid layer through thick-walled outer envelope.
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, compression strength low for stable performance, thermal conductivity factor higher as the metal material such as steel, titanium or as the nonmetallic materials such as fiberglass, resin.
Preferably, described solid storage hot/cold medium is that volumetric heat capacity is high, with low cost, thermomechanical property is stablized, absorbs to heat transfer medium the material that permeability is low, porosity is low, specific area is high.
Preferably, described high pressure heat accumulation/accumulator is put and is arranged multiple thermal insulation layer from top to bottom, 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, arrange certain thickness space between the wall shell that described high pressure heat accumulation/accumulator is put and heat-insulation layer, 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 rig with supplemental heat/cold, and heat-exchanger rig can be helical bundle, plain tube is restrained, finned tube is restrained or one or more mixing of 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 spoiler and evenly flow into make heat-transfer fluid, and spoiler can be one or both mixing such as porous plate, flow-stopping plate.
Use flow process as high pressure heat-storing device is:
In advance, close the heat-storage medium outlet of bottom, solid heat-storage medium is filled in high pressure heat-storing device inner casing, to predetermined altitude by the charging aperture at top.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, HTHP heat transfer medium is entered by the heat transfer medium mouth of pipe at high pressure heat-storing device top.After the spoiler of the top mouth of pipe, heat transfer medium is evenly downward, by the space between solid heat-storage medium, through the also heat exchange with it of solid heat-storage medium surface, high temperature heat is passed to solid dielectric; Heat-transfer fluid is cooled simultaneously, is discharged by the heat transfer medium mouth of pipe bottom high pressure heat-storing device.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, terminate heat accumulation.In heat accumulation process, packed bed internal temperature field forms top-down thermal stratification.
If high pressure heat-storing device has stored certain heat, when starting holding stage, close the heat transfer medium mouth of pipe of high pressure heat-storing device top and bottom.
During heat release, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe bottom high pressure heat-storing device.After the spoiler of the bottom mouth of pipe, heat transfer medium evenly upwards, by the space between solid heat-storage medium, through the also heat exchange with it of solid heat-storage medium surface, absorbs the heat energy in 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, thinks that heat energy release is complete, terminate heat release.In heat release process, the axial stratification of packed bed internal temperature field is constantly upwards passed.
The use flow process of putting as high pressure accumulator is:
In advance, close the cold storage material outlet of bottom, solid cold storage material is filled into high pressure accumulator by the charging aperture at top and puts in inner casing, to predetermined altitude.Start the liquid pump of heating fluid, make heating fluid in heating liquid layer in certain flow velocity current downflow.
When storing up cold, cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe in high pressure accumulator bottom set portion.After the spoiler of the bottom mouth of pipe, heat transfer medium evenly upwards flows, and by the space between solid cold storage material, through the also heat exchange with it of solid cold storage material surface, cryogenic cold energy is passed to solid dielectric; Heat-transfer fluid temperature raises, and is discharged by the heat transfer medium mouth of pipe in high pressure accumulator top set portion.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, terminate storage cold.Store up in cold process, store up in cold process, packed bed internal temperature field forms top-down thermal stratification.
If high pressure accumulator is put store certain cold, when starting holding stage, close the heat transfer medium mouth of pipe of high pressure accumulator top set portion and bottom.
When releasing cold, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe in high pressure accumulator top set portion.After the spoiler of the top mouth of pipe, heat transfer medium evenly flows downward, and by the space between solid cold storage material, through the also heat exchange with it of solid cold storage material surface, 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 in high pressure accumulator bottom set portion.When the discharge temperature of heat transfer medium rises to a certain design temperature, think that cold energy has discharged complete, end is released cold.Release in cold process, the axial stratification of packed bed internal temperature field is constantly passed downwards.
Heat accumulation/accumulator of the present invention is put to have and is born that pressure is high, cost is low, efficiency is high, heat quality advantages of higher, be specially adapted to store up release that the hot/cold temperature difference is large, storage releases heat accumulation and/or store up cold occasion more frequently.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
Fig. 3 is the structural representation of the embodiment of the present invention 3.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, 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 puts embodiment 1, in this embodiment, its top feed mouth and the tip heat transfer medium mouth of pipe are same opening, and bottom discharging mouth and the bottom thermal transfer medium mouth of pipe are same opening.Wherein, comprise base 1, bottom discharging mouth is held concurrently the bottom thermal transfer medium mouth of pipe 2, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, thick-walled outer envelope 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, its top feed mouth is held concurrently the tip heat transfer medium mouth of pipe 11, logical pressure pipeline 12, the top cooling/heating liquid mouth of pipe 13, bottom coohng/heating fluid mouth of pipe 14.Logical pressure pipeline 12 one end is communicated with the tip heat transfer medium mouth of pipe 11, the other end is communicated with heat-insulation layer 7 through thick-walled outer envelope 5 and cooling/heating liquid layer 6 are rear.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, pressure communication means is provided with between heat-insulation layer 7 and inner casing 8, make described heat-insulation layer and the logical pressure pipeline 12 between inner casing that the two internal pressure is communicated, thick-walled outer envelope 5 is for bearing the pressure vessel of high interior pressure; Cooling/heating liquid layer 6 is the inner sandwich containing multiple passage, the cooling/heating liquid circulated is passed in each passage, make case pres-sure inner surface of container all can be subject to cooling/heating, described circulating of cooling/heating liquid is driven by liquid pump, and the fluid pressure in cooling/heating liquid layer 6 and inner housing inner pressure are consistent; Fluid heat transfer medium contacts with 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 hot/cold medium 9 and be filled into during high pressure heat accumulation/accumulator puts, to predetermined altitude by the charging aperture 11 at top.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, flowed out by the top cooling/heating liquid mouth of pipe 13 after heat transfer.
During heat accumulation, HTHP heat transfer medium is entered by the tip heat transfer medium mouth of pipe 11.After top porous flow-stopping plate 10, heat transfer medium is evenly downward, high temperature heat is passed to solid heat-storage medium 9; Heat-transfer fluid is cooled simultaneously, and the heat transfer medium mouth of pipe 2 bottom high pressure heat-storing device is discharged.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, terminate heat accumulation.
During heat release, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 bottom high pressure heat-storing device.After bottom porous flow-stopping plate 3, heat transfer medium evenly upwards, absorbs the heat of solid heat-storage medium 9; Heat-transfer fluid temperature raises, and the heat transfer medium mouth of pipe 11 through high pressure heat-storing device top is discharged.When the discharge temperature of heat transfer medium is down to a certain design temperature, think that heat energy has discharged complete, terminate heat release.
Put Chu Lengshi as high pressure accumulator, cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 in high pressure accumulator bottom set portion.After 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 in high pressure accumulator top set portion.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, terminate storage cold.
When releasing cold, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 11 in high pressure accumulator top set portion.After the spoiler 9 of 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 in high pressure accumulator bottom set portion.When the discharge temperature of heat transfer medium rises to a certain design temperature, think high pressure accumulator put discharge complete, terminate release cold.
Embodiment 2
As shown in Figure 2, for high pressure heat accumulation/accumulator of the present invention puts embodiment 2, in this embodiment, its top feed mouth and the tip heat transfer medium mouth of pipe are different openings, and bottom discharging mouth and the bottom thermal transfer medium mouth of pipe are different openings.Wherein, comprise base 1, the bottom thermal transfer medium mouth of pipe 2, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, thick-walled outer envelope 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 tip heat transfer medium mouth of pipe 11, logical pressure pipeline 12, its top feed mouth 15, the top cooling/heating liquid mouth of pipe 13, bottom coohng/heating fluid mouth of pipe 14, bottom discharging mouth 16.Logical pressure pipeline 12 one end is communicated with the tip heat transfer medium mouth of pipe 11, the other end is communicated with heat-insulation layer 7 through thick-walled outer envelope 5 and cooling/heating liquid layer 6 are rear.
In advance, close the discharge gate 2 of bottom, solid is stored up hot/cold medium 9 and be filled into during high pressure heat accumulation/accumulator puts, to predetermined altitude by the charging aperture 11 at top.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, flowed out by the top cooling/heating liquid mouth of pipe 13 after heat transfer.
During as high pressure heat-storing device heat accumulation, HTHP heat transfer medium is entered by the tip heat transfer medium mouth of pipe 11.After top porous flow-stopping plate 10, heat transfer medium is evenly downward, 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 bottom high pressure heat-storing device.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, terminate heat accumulation.
During heat release, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 bottom high pressure heat-storing device.After bottom porous flow-stopping plate 3, heat transfer medium evenly upwards, 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, terminate heat release.
Put Chu Lengshi as high pressure accumulator, cryogenic high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 2 in high pressure accumulator bottom set portion.After 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 in high pressure accumulator top set portion.When the discharge temperature of heat-transfer fluid is down to a certain design temperature, think that cold energy has stored complete, terminate storage cold.
When releasing cold, high pressure heat transfer medium is entered by the heat transfer medium mouth of pipe 11 in high pressure accumulator top set portion.After the spoiler 10 of 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 in high pressure accumulator bottom set portion.When the discharge temperature of heat transfer medium rises to a certain design temperature, think that cold energy has discharged complete, end is released cold.
Embodiment 3
As shown in Figure 3, for high pressure heat accumulation/accumulator of the present invention puts embodiment 3, be the improvement of example 1, in 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, bottom discharging mouth is held concurrently the bottom thermal transfer medium mouth of pipe 2, bottom coohng/heating fluid mouth of pipe 14, bottom porous flow-stopping plate 3, inner casing bracing or strutting arrangement 4, thick-walled outer envelope 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; its top feed mouth is held concurrently the tip heat transfer medium mouth of pipe 11, logical pressure pipeline 12, heat exchanger tube/tube bundle 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 one end is communicated with the tip heat transfer medium mouth of pipe 11, the other end is communicated with heat-insulation layer 7 through thick-walled outer envelope 5 and cooling/heating liquid layer 6 are rear.
The storage hot/cold process that high pressure heat accumulation/accumulator is put is identical with example 1.
When needs are 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 bundle top mouth of pipe 19, by heat exchanger tube/tube bank wall, heat energy is passed to internal solids heat-storage medium 9, flow out through heat exchanger tube/tube bank bottom mouth of pipe 17 after temperature reduces.
When needs for high pressure accumulator put inner cold storage material supplement cold time, 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, temperature flows out through heat exchanger tube/tube bundle top mouth of pipe 19 after raising.
Be described in detail the specific embodiment of invention above, but it is as example, 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, equalization conversion done without departing from the spirit and scope of the invention and amendment, all should contain within the scope of the invention.
Claims (11)
1. high pressure heat accumulation/accumulator is put, it is characterized in that, described high pressure heat accumulation/accumulator puts the solid heat-storage medium comprising thick-walled outer envelope, cooling/heating liquid layer, heat-insulation layer, thin-walled inner casing and inner housing inner from outside to inside successively and fill, and establishes inner casing bracing or strutting arrangement between 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 inner casing, and described heat-insulation layer is communicated with inner housing inner pressure, and thick-walled outer envelope is the pressure vessel bearing high interior pressure; Described cooling/heating liquid layer is the inner sandwich containing multiple passage, the cooling/heating liquid circulated is passed in each passage, make case pres-sure inner surface of container all can be subject to cooling/heating, the fluid pressure in cooling/heating liquid layer and inner housing inner pressure are consistent; Fluid heat transfer medium contacts with 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 the mouth of pipe bottom at least one its top feed mouth, at least one bottom discharging mouth, at least one tip heat transfer medium mouth of pipe, at least one bottom thermal transfer medium mouth of pipe, at least one cooling/heating liquid top mouth of pipe and a cooling/heating liquid.
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 portion's charging aperture and the tip heat transfer medium mouth of pipe are same opening, and described high pressure heat accumulation/accumulator bottom set portion's discharge gate and the bottom thermal transfer medium mouth of pipe are same opening.
4. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, it is characterized in that, described cooling/heating liquid is the mixture of a kind of in water, ethanol, ethylene glycol, propyl alcohol or at least two kinds, described circulating of cooling/heating liquid is driven by liquid pump, and its pressure and inner housing inner pressure are consistent.
5. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, and it is characterized in that, the material that described high pressure heat accumulation/accumulator puts thin-walled inner casing is metal material, and thick-walled outer envelope material is metal material or nonmetallic materials.
6. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, it is characterized in that, described fluid heat transfer medium is the mixture of a kind of in the air of liquid, gaseous state or above-critical state, nitrogen, oxygen, helium, hydrogen, methane, water vapour or at least two kinds.
7. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, it is characterized in that, described solid heat-storage medium is granular material or porous material, is the mixture of a kind of in the phase-change material of rock, ore, slag, concrete, refractory brick, heat-storing sphere, metal, encapsulation or at least two kinds.
8. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, and it is characterized in that, described heat-insulation layer is one or more the mixture in rock wool, pearlife, glass mat.
9. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, it is characterized in that, described pressure communication means is the perforate be arranged on inner casing wall or the logical pressure pipeline that one end is communicated with heat-insulation layer, the other end is communicated with inner casing, described heat-insulation layer is communicated with inner housing inner pressure, makes it pressure balance.
10. a kind of high pressure heat accumulation/accumulator according to any one of claims 1 to 3 is put, it is characterized in that, the supporting way of described inner casing bracing or strutting arrangement is that annular supports or multi-point support, the metal material that backing material is stable performance, thermal conductivity factor is low, compression strength is higher or nonmetallic materials.
11. a kind of high pressure heat accumulation/accumulators according to claim 9 are put, and it is characterized in that, described logical pressure pipeline one end is communicated with the tip heat transfer medium mouth of pipe, the other end is communicated with heat-insulation layer with after cooling/heating liquid layer through thick-walled outer envelope.
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| CN103470946B (en) * | 2013-08-29 | 2015-05-27 | 北京宇航系统工程研究所 | High-pressure supercritical helium storage tank |
| 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 |
| NO340371B1 (en) * | 2014-12-19 | 2017-04-10 | Energynest As | HIGH TEMPERATURE THERMAL ENERGY STORAGE, PROCEDURE FOR BUILDING AND PROCEDURE FOR OPERATION OF THIS STOCK |
| CN105066757A (en) * | 2015-08-13 | 2015-11-18 | 北方民族大学 | Air heat accumulating and releasing device of solid particles |
| EP3327398A1 (en) * | 2016-11-23 | 2018-05-30 | Siemens Aktiengesellschaft | Heat exchange system with a cooling device and method for ex-changing heat 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 |
| CN109883240B (en) * | 2019-03-25 | 2019-10-25 | 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 |
| CN112325693B (en) * | 2020-11-23 | 2022-04-22 | 安徽金泰农药化工有限公司 | Heat exchange device for pesticide production and working method thereof |
| CN113295031B (en) * | 2021-05-27 | 2022-12-16 | 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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