CN105716462A - Solid heat storage and exchange machine, solid heat storage system and solid heat storage method - Google Patents
Solid heat storage and exchange machine, solid heat storage system and solid heat storage method Download PDFInfo
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- CN105716462A CN105716462A CN201410740068.3A CN201410740068A CN105716462A CN 105716462 A CN105716462 A CN 105716462A CN 201410740068 A CN201410740068 A CN 201410740068A CN 105716462 A CN105716462 A CN 105716462A
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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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Abstract
The invention provides a solid heat storage and exchange machine, a solid heat storage system and a solid heat storage method. The solid heat storage and exchange machine comprises a solid heat storage body (7), at least one heat exchange pipeline (5), a first header (3), a second header (9), a first mouthpiece (1), a second mouthpiece (11), a first connector (2), a second connector (10) and a heat preservation layer (6). The heat exchange pipelines (5) are embedded inside the solid heat storage body (7) at equal intervals in parallel. The solid heat storage system is low in price, easy to operate, safe, stable, and adaptive to not only heat storage and heat exchange of a large solar thermal power station heat storage system, but also heat storage for unstable industrial waste heat recycling, and has great significance in full utilization of renewable energy sources and waste heat.
Description
Technical field
The present invention relates to a kind of solid heat storage exchanger, be specifically related to a kind of solid heat storage exchanger, solid heat reservoir and solid heat-storing method.
Background technology
Along with shortage and people's raising to environmental quality requirement, the regenerative resource, particularly solar energy of conventional energy resource, increasingly it is subject to the favor of people；Meanwhile, a large amount of waste heats that commercial production produces also are the emphasis of comprehensive utilization of energy from now on.
No matter being solar energy or industrial exhaust heat, its maximum deficiency is exactly the unstability of energy supply.Solar energy thermal-power-generating and industrial exhaust heat are combined with heat reservoir, stability and the availability of solar energy and industrial exhaust heat output can be increased.
But, existing heat storage and exchange system, the problems such as the stability with heat energy output is limited, cost is high, structure is complicated and traffic control is dumb, thus limiting the extensive utilization of large-scale solar generating and industrial exhaust heat.
Summary of the invention
For the defect that prior art exists, the present invention provides a kind of solid heat storage exchanger, solid heat reservoir and solid heat-storing method, can effectively solve the problems referred to above.
The technical solution used in the present invention is as follows:
The present invention provides a kind of solid heat storage exchanger, including: solid heat accumulation main body (7), at least one heat exchange pipeline (5), the 1st header (3), the 2nd header (9), the 1st mouthpiece (1), the 2nd mouthpiece (11), the 1st connector (2), the 2nd connector (10) and heat-insulation layer (6)；
Wherein, each described heat exchange pipeline (5) equidistant parallel is embedded in the inside of described solid heat accumulation main body (7)；And, 1st port of each described heat exchange pipeline (5) is respectively positioned on the top of described solid heat accumulation main body (7), and it being sealably coupled to each branch pipe interface of described 1st header (3) respectively, the house steward of described 1st header (3) is connected with described 1st mouthpiece (1) by described 1st connector (2)；2nd port of each described heat exchange pipeline (5) is respectively positioned on the lower section of described solid heat accumulation main body (7), and it being sealably coupled to each branch pipe interface of described 2nd header (9) respectively, the house steward of described 2nd header (9) is connected with described 2nd mouthpiece (11) by described 2nd connector (10).
Described heat-insulation layer (6) is coated on the outside of described solid heat accumulation main body (7).
Preferably, the solid heat accumulating that described solid heat accumulation main body (7) adopts is concrete or phase-change material；And/or described 1st connector (2) and described 2nd connector (10) are flange.
Preferably, described heat exchange pipeline (5) is duct type snake pipe.
Preferably, described duct type snake pipe is light pipe or finned tube.
Preferably, the material of described heat-insulation layer (6) is high temperature aluminium silicate and the composite material of glass fibre formation.
Preferably, also include: the 1st temperature point (4) and the 2nd temperature point (8)；Described 1st temperature point (4) is arranged at the inside of described solid heat accumulation main body (7) and the 1st port of close described heat exchange pipeline (5), is used for measuring the upside temperature of described solid heat accumulation main body (7)；
Described 2nd temperature point (8) is arranged at the inside of described solid heat accumulation main body (7) and the 2nd port of close described heat exchange pipeline (5), is used for measuring the downside temperature of described solid heat accumulation main body (7).
Preferably, described 1st temperature point (4) and described 2nd temperature point (8) are electric thermo-couple temperature measuring point.
The present invention also provides for a kind of solid heat reservoir, including the solid heat storage exchanger that at least two is above-mentioned；Wherein, each described solid heat storage exchanger is for being connected in series mode or parallel.
The present invention also provides for a kind of solid heat-storing method, comprises the following steps:
For single solid heat storage exchanger, if arranging n heat exchange pipeline (5) altogether, then:
Solid heat accumulation main body (7) is filled thermal flow process as follows:
Hot fluid is flowed into the 1st header (3) by the 1st mouthpiece (1), in the 1st header (3), hot fluid is divided into n branch road, it is sent to the 1st port of n heat exchange pipeline (5) respectively, the hot fluid of each branch road serpentine-like complications in respective heat exchange pipeline (5) flow downward, and in flow process, there is heat exchange, make solid heat accumulation main body (7) temperature constantly increase, and hot fluid temperature constantly declines and becomes cold flow body；The cold fluid flow of each branch road enters to the 2nd header (9), in the 2nd header (9), after being converged by the cold flow body of each branch road, is discharged by the 2nd mouthpiece (11)；
Circulation said process, hot fluid is constantly injected into heat exchange pipeline (5), after there is heat exchange with solid heat accumulation main body (7), discharges from heat exchange pipeline (5)；Thus constantly solid heat accumulation main body (7) being filled heat, the heat absorption situation of solid heat accumulation main body (7) is monitored by the 2nd temperature point (8), fill heat when the temperature monitoring solid heat accumulation main body (7) reaches setting value to complete, stop the 1st port heated fluid injection to heat exchange pipeline (5)；
Solid heat accumulation main body (7) heat release flow process is as follows:
Cold flow body is flowed into the 2nd header (9) by the 2nd mouthpiece (11), in the 2nd header (9), cold flow body is divided into n branch road, it is sent to n heat exchange pipeline (5) respectively, the cold flow body of each branch road serpentine-like complications in respective heat exchange pipeline (5) flow up, and in flow process, there is heat exchange, make solid heat accumulation main body (7) temperature constantly decline and heat release, and cooling fluid temperature constantly rises and becomes hot fluid；The hot fluid of each branch road is flowed into the 1st header (3), in the 1st header (3), after being converged by the hot fluid of each branch road, is discharged by the 1st mouthpiece (1)；
Circulation said process, cold flow body is constantly injected into heat exchange pipeline (5), after there is heat exchange with solid heat accumulation main body (7), discharges from heat exchange pipeline (5)；Thus constantly to solid heat accumulation main body (7) heat release, the heat release situation of solid heat accumulation main body (7) is monitored by the 1st temperature point (4), fill heat when the temperature monitoring solid heat accumulation main body (7) reaches setting value to complete, stop injecting cold flow body to heat exchange pipeline (5).
Beneficial effects of the present invention is as follows:
The present invention provides a kind of solid heat storage exchanger, solid heat reservoir and solid heat-storing method, for a kind of cheap, simple to operate, safe and stable solid heat reservoir, it is not only applicable to heat accumulation and the heat exchange of large-sized solar thermo-power station heat reservoir, it is adapted to again the heat storage of unstable industrial afterheat recovery, significant for making full use of of regenerative resource and waste heat.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of solid heat storage exchanger provided by the invention；
Fig. 2 is the side cutaway view of solid heat storage exchanger provided by the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
As depicted in figs. 1 and 2, the present invention provides a kind of solid heat storage exchanger, including: solid heat accumulation main body 7, at least one heat exchange pipeline the 5, the 1st header the 3, the 2nd header the 9, the 1st mouthpiece the 1, the 2nd mouthpiece the 11, the 1st connector the 2, the 2nd connector 10 and heat-insulation layer 6；
Wherein, each heat exchange pipeline 5 equidistant parallel is embedded in the inside of solid heat accumulation main body 7, and with reference to Fig. 2, heat exchange pipeline 5 can adopt arranged in squares form；Further, the 1st port of each heat exchange pipeline 5 is respectively positioned on the top of solid heat accumulation main body 7, and is sealably coupled to each branch pipe interface of the 1st header 3 respectively, in reality, can adopt welding manner, and the house steward of the 1st header 3 is connected with the 1st mouthpiece 1 by the 1st connector 2；2nd port of each heat exchange pipeline 5 is respectively positioned on the lower section of solid heat accumulation main body 7, and is sealably coupled to each branch pipe interface of the 2nd header 9 respectively, in reality, can adopt welding manner, and the house steward of the 2nd header 9 is connected with the 2nd mouthpiece 11 by the 2nd connector 10.
Heat-insulation layer 6 is coated on the outside of solid heat accumulation main body 7, reduces distributing of solid the stored energy of heat accumulation main body, and the material of heat-insulation layer 6 can adopt the composite material that high temperature aluminium silicate and glass fibre are formed, and its thickness is selected flexibly according to cooling requirements.
Wherein, the solid heat accumulating that solid heat accumulation main body 7 adopts is concrete or phase-change material, during making, is directly cast in inside solid heat accumulating by heat exchange pipeline 5, makes to be absent between heat exchange pipeline 5 and solid heat accumulating gap, improves heat exchange efficiency.1st connector the 2 and the 2nd connector 10 is flange.Heat exchange pipeline 5 is duct type snake pipe, for instance, light pipe or finned tube, adopt duct type snake pipe, can be effectively improved in solid heat accumulating the length of heat exchange pipeline, strengthen heat transfer effect.
For realizing automatically controlling solid heat storage exchanger charge and discharge thermal process, it is prevented that occur overheated or spend the service life etc. putting phenomenon and reduce solid heat accumulating, in the present invention, also including: the 1st temperature point the 4 and the 2nd temperature point 8；1st temperature point 4 is arranged at the inside of solid heat accumulation main body 7 and the 1st port of close heat exchange pipeline 5, for measuring the upside temperature of solid heat accumulation main body 7；2nd temperature point 8 is arranged at the inside of solid heat accumulation main body 7 and the 2nd port of close heat exchange pipeline 5, for measuring the downside temperature of solid heat accumulation main body 7.Wherein, the 1st temperature point the 4 and the 2nd temperature point 8 is electric thermo-couple temperature measuring point.
Each above-mentioned solid heat storage exchanger adopts modularized design, can adopt the mode of being connected in series or parallel, thus formation of solid polycomplex heat reservoir, reaches expand heat storage capacity and improve the purpose of heat accumulation maximum temperature.
The present invention also provides for a kind of solid heat-storing method, comprises the following steps:
For single solid heat storage exchanger, if arranging n heat exchange pipeline 5 altogether, then:
Solid heat accumulation main body 7 is filled thermal flow process as follows:
Hot fluid is flowed into the 1st header 3 by the 1st mouthpiece 1, in the 1st header 3, hot fluid is divided into n branch road, it is sent to the 1st port of n heat exchange pipeline 5 respectively, the hot fluid of each branch road serpentine-like complications in respective heat exchange pipeline 5 flow downward, and in flow process, there is heat exchange, make solid heat accumulation main body 7 temperature constantly increase, and hot fluid temperature constantly declines and becomes cold flow body；The cold fluid flow of each branch road enters to the 2nd header 9, in the 2nd header 9, after being converged by the cold flow body of each branch road, is discharged by the 2nd mouthpiece 11；
Circulation said process, hot fluid is constantly injected into heat exchange pipeline 5, after there is heat exchange with solid heat accumulation main body 7, discharges from heat exchange pipeline 5；Thus constantly solid heat accumulation main body 7 being filled heat, being monitored the heat absorption situation of solid heat accumulation main body 7 by the 2nd temperature point 8, filling heat when the temperature monitoring solid heat accumulation main body 7 reaches setting value and complete, stop the 1st port heated fluid injection to heat exchange pipeline 5；
Solid heat accumulation main body 7 heat release flow process is as follows:
Cold flow body is flowed into the 2nd header 9 by the 2nd mouthpiece 11, in the 2nd header 9, cold flow body is divided into n branch road, it is sent to n heat exchange pipeline 5 respectively, the cold flow body of each branch road serpentine-like complications in respective heat exchange pipeline 5 flow up, and in flow process, there is heat exchange, make solid heat accumulation main body 7 temperature constantly decline and heat release, and cooling fluid temperature constantly rises and becomes hot fluid；The hot fluid of each branch road is flowed into the 1st header 3, in the 1st header 3, after being converged by the hot fluid of each branch road, is discharged by the 1st mouthpiece 1；
Circulation said process, cold flow body is constantly injected into heat exchange pipeline 5, after there is heat exchange with solid heat accumulation main body 7, discharges from heat exchange pipeline 5；Thus constantly to solid heat accumulation main body 7 heat release, being monitored the heat release situation of solid heat accumulation main body 7 by the 1st temperature point 4, filling heat when the temperature monitoring solid heat accumulation main body 7 reaches setting value and complete, stop injecting cold flow body to heat exchange pipeline 5.
Solid heat storage exchanger provided by the invention, solid heat reservoir and solid heat-storing method, have the advantage that
(1) agent structure only has solid heat accumulation main body and heat exchange pipeline, and the heat exchanger component used is few, and, said structure forms by industrial conventional material set, has simple in construction and the low advantage of cost；
(2) safe and reliable to operation, with low cost: to consider the control measure of thermal stress on heat exchanger tube designs, meanwhile, solid heat accumulating will not produce corrosion by heat exchanging pipeline, runs safety；
(3) adopting modularized design, it is simple to the system integration, individual module can be connected can also be in parallel, in order to reaches expand heat storage capacity and improve the purpose of heat accumulation maximum temperature.
(4) therefore, for a kind of cheap, simple to operate, safe and stable solid heat reservoir, it is not only applicable to heat accumulation and the heat exchange of large-sized solar thermo-power station heat reservoir, it is adapted to again the heat storage of unstable industrial afterheat recovery, significant for making full use of of regenerative resource and waste heat.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should look protection scope of the present invention.
Claims (9)
1. a solid heat storage exchanger, it is characterized in that, including: solid heat accumulation main body (7), at least one heat exchange pipeline (5), the 1st header (3), the 2nd header (9), the 1st mouthpiece (1), the 2nd mouthpiece (11), the 1st connector (2), the 2nd connector (10) and heat-insulation layer (6)；
Wherein, each described heat exchange pipeline (5) equidistant parallel is embedded in the inside of described solid heat accumulation main body (7)；And, 1st port of each described heat exchange pipeline (5) is respectively positioned on the top of described solid heat accumulation main body (7), and it being sealably coupled to each branch pipe interface of described 1st header (3) respectively, the house steward of described 1st header (3) is connected with described 1st mouthpiece (1) by described 1st connector (2)；2nd port of each described heat exchange pipeline (5) is respectively positioned on the lower section of described solid heat accumulation main body (7), and it being sealably coupled to each branch pipe interface of described 2nd header (9) respectively, the house steward of described 2nd header (9) is connected with described 2nd mouthpiece (11) by described 2nd connector (10).
Described heat-insulation layer (6) is coated on the outside of described solid heat accumulation main body (7).
2. solid heat storage exchanger according to claim 1, it is characterised in that the solid heat accumulating that described solid heat accumulation main body (7) adopts is concrete or phase-change material；And/or described 1st connector (2) and described 2nd connector (10) are flange.
3. solid heat storage exchanger according to claim 1, it is characterised in that described heat exchange pipeline (5) is duct type snake pipe.
4. solid heat storage exchanger according to claim 3, it is characterised in that described duct type snake pipe is light pipe or finned tube.
5. solid heat storage exchanger according to claim 1, it is characterised in that the material of described heat-insulation layer (6) is high temperature aluminium silicate and the composite material of glass fibre formation.
6. solid heat storage exchanger according to claim 1, it is characterised in that also include: the 1st temperature point (4) and the 2nd temperature point (8)；Described 1st temperature point (4) is arranged at the inside of described solid heat accumulation main body (7) and the 1st port of close described heat exchange pipeline (5), is used for measuring the upside temperature of described solid heat accumulation main body (7)；
Described 2nd temperature point (8) is arranged at the inside of described solid heat accumulation main body (7) and the 2nd port of close described heat exchange pipeline (5), is used for measuring the downside temperature of described solid heat accumulation main body (7).
7. solid heat storage exchanger according to claim 6, it is characterised in that described 1st temperature point (4) and described 2nd temperature point (8) are electric thermo-couple temperature measuring point.
8. a solid heat reservoir, it is characterised in that include the solid heat storage exchanger described at least two any one of claim 1-7；Wherein, each described solid heat storage exchanger is for being connected in series mode or parallel.
9. a solid heat-storing method, it is characterised in that comprise the following steps:
For single solid heat storage exchanger, if arranging n heat exchange pipeline (5) altogether, then:
Solid heat accumulation main body (7) is filled thermal flow process as follows:
Hot fluid is flowed into the 1st header (3) by the 1st mouthpiece (1), in the 1st header (3), hot fluid is divided into n branch road, it is sent to the 1st port of n heat exchange pipeline (5) respectively, the hot fluid of each branch road serpentine-like complications in respective heat exchange pipeline (5) flow downward, and in flow process, there is heat exchange, make solid heat accumulation main body (7) temperature constantly increase, and hot fluid temperature constantly declines and becomes cold flow body；The cold fluid flow of each branch road enters to the 2nd header (9), in the 2nd header (9), after being converged by the cold flow body of each branch road, is discharged by the 2nd mouthpiece (11)；
Circulation said process, hot fluid is constantly injected into heat exchange pipeline (5), after there is heat exchange with solid heat accumulation main body (7), discharges from heat exchange pipeline (5)；Thus constantly solid heat accumulation main body (7) being filled heat, the heat absorption situation of solid heat accumulation main body (7) is monitored by the 2nd temperature point (8), fill heat when the temperature monitoring solid heat accumulation main body (7) reaches setting value to complete, stop the 1st port heated fluid injection to heat exchange pipeline (5)；
Solid heat accumulation main body (7) heat release flow process is as follows:
Cold flow body is flowed into the 2nd header (9) by the 2nd mouthpiece (11), in the 2nd header (9), cold flow body is divided into n branch road, it is sent to n heat exchange pipeline (5) respectively, the cold flow body of each branch road serpentine-like complications in respective heat exchange pipeline (5) flow up, and in flow process, there is heat exchange, make solid heat accumulation main body (7) temperature constantly decline and heat release, and cooling fluid temperature constantly rises and becomes hot fluid；The hot fluid of each branch road is flowed into the 1st header (3), in the 1st header (3), after being converged by the hot fluid of each branch road, is discharged by the 1st mouthpiece (1)；
Circulation said process, cold flow body is constantly injected into heat exchange pipeline (5), after there is heat exchange with solid heat accumulation main body (7), discharges from heat exchange pipeline (5)；Thus constantly to solid heat accumulation main body (7) heat release, the heat release situation of solid heat accumulation main body (7) is monitored by the 1st temperature point (4), fill heat when the temperature monitoring solid heat accumulation main body (7) reaches setting value to complete, stop injecting cold flow body to heat exchange pipeline (5).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108469195A (en) * | 2018-01-03 | 2018-08-31 | 北京今日能源科技发展有限公司 | A kind of fin-tube type Latent Heat Storage Exchanger |
| CN108981436A (en) * | 2017-06-02 | 2018-12-11 | 美的集团股份有限公司 | Heat exchanger and water heater |
| CN110186304A (en) * | 2019-06-28 | 2019-08-30 | 思安新能源股份有限公司 | Prefabricated modular solid heat storage device and solid heat reservoir |
| CN115060103A (en) * | 2022-06-22 | 2022-09-16 | 西安热工研究院有限公司 | Coupling heat storage system and operation method |
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