CN101033892B - High temperature heat absorber used in solar tower-type thermal power station - Google Patents
High temperature heat absorber used in solar tower-type thermal power station Download PDFInfo
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- CN101033892B CN101033892B CN200710065553A CN200710065553A CN101033892B CN 101033892 B CN101033892 B CN 101033892B CN 200710065553 A CN200710065553 A CN 200710065553A CN 200710065553 A CN200710065553 A CN 200710065553A CN 101033892 B CN101033892 B CN 101033892B
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- heat
- high temperature
- pipe
- flow channel
- coolant flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
- F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
A high temperature heat sink used in the solar energy tower thermal generating station. It includes hot pipe, the heat-resisting insulating layer, the thermal baffle, the cooling channel and the second predocus mouth. The hot pipe is installed in the heat absorbing hollow and the lower of the cooling channel. The heat absorbing hollow faces to the lens field. Except the mouth, the other sides of the hollow are close which the out surface is covered with the heat-resisting insulating layer. The evaporation zone of the hot pipe is the heat absorbing face of the heat absorber and the cooling zoneis inserted into the liner tube of the cooling channel. The evaporation zone is the free end and the out face is installed with the fin which is the straight fin faced to the incident energy flow. The hot pipe is arrayed crossly and working separately. The cooling channel is the heat exchanger of thick-wall square hollow made by the stainless steel which is installed on the top of the heat absorbing hollow and the rib pole is installed in the inner surface. It can select the hot pipes of different material according to the different outlet temperature. The invention is safe and simple to operate; also it has the wide using temperature and is easy to maintenance.
Description
Technical field
The present invention relates to a kind of high temperature heat absorber used in solar tower-type thermal power station.
Background technology
Utilize and heat generating occasion in the Salar light-gathering elevated temperature heat, the heat dump that uses is distinguished according to working medium and is mainly contained water/steam, conduction oil, fuse salt, air and liquid metal etc. at present.Water/steam heat dump structure is similar to water-cooling wall, superheater and the reheater in the present station boiler, and subcooled water is heated to saturated here or the superheated steam state.High-temperature component is in high temperature, super-pressure state when work, it is very high for the requirement of device security further to improve operational factor, and the suffered creep of heat dump metal material and high temperature oxidation and corrosion are all comparatively serious, and these all make the further raising of heat dump operational factor and system's generating efficiency be very limited; Conduction oil heat dump operating temperature is difficult to above 400 ℃, and the entire system cost is higher, be mainly used at present in the solar groove type optically focused heat generating system, the vacuum seal of solar energy high temperature heat absorption steel pipe is in glass bushing, in order to reduce the convection heat losses, because of the reason of its working medium operating temperature restriction and the restriction of vacuum tube operating temperature, this heat dump is not adapted at tower type solar energy thermal power generation high temperature section place and directly uses; And as U.S. publication US6701711, the molten salt thermal absorber that US5862800 mentions, also be to utilize boiler heat exchange principle, stainless steel tubulation heat dump adopts the molten state salt-mixture as heat-exchange working medium, and strict control all has high requirements heat exchange equipment for the temperature range of corrosion resistance and operation.Fuse salt working medium can only be used in specific range of temperatures, for example sodium nitrate potassium nitrate salt-mixture working medium can only be in 290 ℃ to 565 ℃ scopes steady operation, system's operation the time need prevent that fuse salt from exceeding operating temperature range and solidify or decompose, simultaneously also will control operating temperature and prevent the heat transmission equipment fatigue damage, thereby whole system control is very complicated; Air heat-absorbing device adopts woven wire or ceramic honey comb to make heat-absorbent surface more.As U.S. publication US5483950 air heat-absorbing device, constitute heat-absorbent surface by woven wire, air has air-introduced machine to drive generation heat exchange when flowing through the high-temperature metal silk screen.Such heat dump is too little as the heat-exchange working medium thermal capacitance with air, and the heat dump heat exchange is inhomogeneous, problems such as stability of a system difference, and this technology still is in the experimental study stage at present; The liquid metal heat dump mainly is the sodium metal sink, sodium working medium heat dump (the Solar Energy Vol.41 that adopted as Spain IEA-SSPS, No.3, pp255-265,1988), be similar to fuse salt working medium heat dump and boiler heat exchange principle, this liquid metal heat dump is formed flat heat absorption surface by 5 heat absorption tube sheet units in series, every heat absorption tube sheet unit is by 39 external diameter 14mm, the stainless steel endothermic tube of wall thickness 1mm composes in parallel, liquid metal sodium is as fluid interchange working medium, driven by high temperature resistant pump and flows through heat absorption tube sheet unit successively, absorbs and takes away heat.Because sodium working medium operating temperature range is wider, and thermal conductivity is than the water and air height, so this heat dump maximal work hot-fluid can reach 3MW/m
2, the heat dump thermal efficiency is also very high.But because sodium also exists and solidifies and resolution problem; and sodium working medium runs into materials such as water and air combustion explosion very easily takes place; for the frequent power station of start and stop; control technology comparatively complexity and security of system is poor, and the fault of sodium leakage and electric heating system can make that also the system-down maintenance is frequent.Above-mentioned heat dump is except that there being above the analysis the distinct disadvantage of mentioning, also have very more significant, be that above-mentioned each heat dump working method all is with the forced-convection heat transfer of active cycle mode, for the non-homogeneous unstable state solar radiant energy that incides the heat dump surface behind the optically focused, its thermal response and adaptive capacity are very poor.In tower Photospot solar thermal power station, the energy-flux density difference that is distributed on the difference of heat dump surface can be up to 6 * 10
5W/m
2The thermal stress that the non-homogeneous hot-fluid that heat dump is distributed in its surface influences generation is very big, and heat dump local temperature destruction such as also take place that the part is burnt easily when too high, and this can have a strong impact on the safe and stable operation of heat dump.
Summary of the invention
The objective of the invention is to overcome prior art thermal response ability and poor stability, a series of deficiencies such as control system complexity and the power consumption of working medium circulation power equipment are bigger, characteristics at non-homogeneous incident behind solar energy unstable state variation and the optically focused, good in conjunction with the response of heat pipe passive type, efficient heat transfer, average temperature performance, to advantages such as non-homogeneous unstable state temperature boundary condition adaptive capacity are strong, a kind of solar energy high temperature heat dump that can be operated in 300 ℃～1200 ℃ of temperature ranges is proposed.Be specially adapted to surface heat flow occasion heterogeneous.
This solar energy high temperature heat dump is made of critical pieces such as heat pipe, heat-insulation layer, thermal baffle, coolant flow channel, bushing pipe, fin and secondary condensation mouths.Heat dump is a cavity type, and heat pipe is installed in the heat-absorbing chamber, is positioned at the coolant flow channel bottom.The heat-absorbing chamber opening direction is towards Jing Chang, and all the other each surfaces are sealed.The heat-absorbing chamber enclosed, outer surface is equipped with heat-resisting heat-insulation layer.The heat pipe evaporator section outer surface is equipped with fin, and fin is the straight wing towards incident energy stream.Heat pipe evaporator section outer surface and fin surface are coated with high temperature resistant solar selectively absorbing coating.Heat pipe evaporator section is a free end, can be with freely stretched by thermal change.Heat pipe condenser section upwards inserts in the bushing pipe.Bushing pipe is arranged in the coolant flow channel.Heat pipe fork row is arranged, and works alone between each heat pipe.The bushing pipe outer surface promptly is equipped with fin towards the inner side of coolant flow channel, to strengthen with the heat exchange between the working fluid in the coolant flow channel.Coolant flow channel is a directional bearing heat interchanger, is a thick-walled vessel equipment.Coolant flow channel is installed in the heat-absorbing chamber top, is positioned at the top of whole heat dump.The coolant flow channel inner surface is equipped with the rib post, to strengthen with its inner working fluid heat exchange.The coolant flow channel outer surface is equipped with heat-resisting heat-insulation layer.Between coolant flow channel bottom outer surface and the heat-absorbing chamber top thermal baffle is housed.
The solar energy of unstable state and non-homogeneous incident enters heat-absorbing chamber behind the optically focused, and directly projection or repeatedly reflection back arrival heat pipe evaporator section outer surface are fully absorbed heat through high temperature resistant coating for selective absorption, with the working media in the heat transferred heat pipe.The active heat dump of prior art can be by the rotating speed of manual or electronic control power-equipment such as pump or fan, or regulates the flow of working fluid by the by-passing valve aperture, changes to adapt to unstable state hot-fluid heterogeneous.On the one hand, this part power-equipment itself requires the expenditure of energy; On the other hand, because the incident hot-fluid changes at random and changes frequently, this active cycle control mode can't respond the variation of projectile energy timely, causes the heat dump outlet parameter to be difficult to stablize.Exist in addition because of power-equipment fault or test signal misalignment and cause the hidden danger that heat dump burns.In addition, the heat dump of prior art is had relatively high expectations to power-equipment when operation, as being example with the molten salt thermal absorber, fluid working substance circulation time in the heat dump needs the high-temperature fusion salt pump to drive, and temperature that this link is often worked and operating pressure are very high, stronger corrosivity is arranged again, so very high to the material and the performance requirement of high-temperature fusion salt pump, corresponding power-equipment investment is also very high.And the heat exchange characteristic of this link of the present invention is: the working media in the heat pipe absorbs the heat that imports from the heat pipe evaporator section outside wall surface, and on the inboard vapour-liquid interface of heat pipe, evaporate, further utilize the latent heat heat absorption, steam flows to condensation segment from evaporator section, and condensation heat on the vapour-liquid interface in condensation segment, with heat transferred coolant flow channel and be placed in the coolant flow channel internal lining pipe, and then with heat transferred cooling fluid working medium.This heat transfer process is owing to relating to phase transformation, so exchange capability of heat ratio heat dump in the past is stronger.And in this process, do not need the extra power device drives, and promptly saved energy consumption, also strengthened the security of operation.After heat is delivered to bushing pipe in coolant flow channel and the coolant flow channel, the rib post that is installed in the coolant flow channel inner surface plays the double action of streaming post and heat exchange rib, can strengthen the heat exchange of high-temperature wall surface and cooling fluid, the fin of installing on bushing pipe simultaneously also can be strengthened with the flow working medium heat exchange in the coolant flow channel.
In addition, the heat dump of prior art is owing to be that heat exchanger is a monolithic construction, and any one damage and fault all can cause whole heat dump out of service even scrap.And in the present invention, being independent heat exchange between each heat pipe, the destruction of single heat pipe can not cause a whole heat absorption heat exchange course of work to stop, and two kinds of heat exchanging fluids can not take place mix mutually, need not system's parking maintenance immediately yet.And heat pipe evaporator section can eliminate the structure thermal (temperature difference) stress that heat dump starts and cloud layer intermittently brings by freely expanding with heat and contract with cold, thereby the present invention can have the higher functional reliability and the thermal efficiency by all kinds of pipe type solar energy high temperature heat absorbers more in the past.
Consider the operating temperature of solar tower-type thermal power station, hydraulic fluid in the heat pipe of solar energy high temperature heat dump of the present invention is the low material of saturated vapour pressure preferably, liquid metal (sodium, potassium, lithium, Na-K alloy for example, caesium etc.), the thermophysical property of these metals is more stable, fusing point is lower, and boiling point is higher.For example the fusing point of lithium is 179 ℃, 1317 ℃ of the boiling points of lithium.When working under hot conditions like this, heat pipe bears high temperature and does not bear the pipe inner high voltage, and the reliability of equipment is higher.In same heat dump inside, again can be different with heat transfer intensity and the heat pipe of different parameters and working medium select to be installed at different parts light stream intensity, have better flexibility and economy.Working medium in the coolant flow channel can be pressure-bearing air, conduction oil, fuse salt, artesian water/steam etc.Compare with the single-phase heat exchange of working medium in the heat dump in the past, solar energy high temperature heat dump of the present invention has been owing to adopted the heat pipe phase-change heat-exchange, and exchange capability of heat is eager to excel than heat dump in the past, can be operated in 300 ℃ to the 1200 ℃ high temperature ranges.
The present invention utilizes heat pipe as efficient " heat transfer-heat exchange " device, utilizes the passive heat starting characteristic of heat pipe to adapt to heat transfer process under the non-homogeneous hot-fluid boundary condition automatically.The evaporator section of heat pipe is as the heat absorption surface of heat dump, and condensation segment is as the heat delivery surface of heat dump.The outlet temperatures different according to heat dump need, and can select the heat pipe of different working medium.Owing to have These characteristics,, be specially adapted to the solar thermal utilization occasion so solar energy high temperature heat dump of the present invention can have higher operating temperature and operational reliability than tubular type heat dump in the past.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 solar energy high temperature heat dump of the present invention front view;
Fig. 2 solar energy high temperature heat dump of the present invention side view;
Fig. 3 solar energy high temperature heat dump of the present invention vertical view;
Heat pipe and bushing pipe connected mode schematic diagram in Fig. 4 solar energy high temperature heat dump of the present invention.
Among the figure: 1 heat pipe, 2 heat-resisting heat-insulation layers, 3 thermal baffles, 4 coolant flow channels inlet, 5 coolant flow channels, 6 bushing pipes, the outlet of 7 coolant flow channels, 8 fins, 9 secondary condensation mouths, 10 rib posts, 11 fins.
The specific embodiment
Fig. 1 is a specific embodiment of the invention solar energy high temperature heat dump front view.This heat dump overall structure is a cavity type.Heat pipe 1 is installed in the heat-absorbing chamber, is positioned at coolant flow channel 5 bottoms.Heat-absorbing chamber is except that opening, and all the other each faces all are equipped with heat-resisting heat-insulation layer, to reduce the heat loss of heat dump.Heat pipe 1 condensation segment inserts in the bushing pipe 6 of coolant flow channel 5.Bushing pipe 6 outer surfaces promptly are equipped with fin 8 towards the inner side of coolant flow channel, to strengthen with the heat exchange between the working fluid in the coolant flow channel 5.Heat pipe 1 evaporator section outer surface is equipped with fin 11, and fin 11 is the straight wing towards incident energy stream.Heat pipe 1 evaporator section outer surface and fin 11 surfaces are coated with high temperature resistant solar selectively absorbing coating, and absorption is assembled the solar radiation of coming and converted thereof into heat energy from the heliostat field.Heat pipe 1 evaporator section is a free end, can freely expand with heat and contract with cold to eliminate the structure thermal (temperature difference) stress.Coolant flow channel 5 is a stainless steel pressure-bearing type heavy wall side chamber heat exchanger.Coolant flow channel 5 is installed in the heat-absorbing chamber top.Heat-resisting heat-insulation layer 2 and thermal baffle 3 can be made by high temperature resistant porous media material, or adopt the reflective insulation construction of multilayer screen all-metal.The reflective attemperator of multilayer screen all-metal promptly is arranged side by side by the multilayer stainless sheet steel and forms the multilayer insulation board, and high temperature resistant interval insulant is arranged between every layer of corrosion resistant plate, and the gap vacuumizes between the stainless steel insulation board, can subdue radiation and convection heat losses significantly.Between coolant flow channel 5 bottom outer surfaces and the heat-absorbing chamber top thermal baffle 3 is housed, high temperature resistant heat insulation baffle plate 3 can play the effect of heat pipe 1 adiabatic section and coolant flow channel 5 insulations.Coolant flow channel 5 inner surfaces are equipped with rib post 10, strengthen heat exchange with cooling fluid by increasing flow disturbance and increasing heat transfer sheet area double route.
Fig. 2 is a specific embodiment of the invention solar energy high temperature heat dump side view.The heat dump opening surface is equipped with secondary condensation mouth 9 to the mirror field direction.The reflecting surface of secondary condensation mouth 9 and heat dump cavity hatch normal direction are in an acute angle.The sunshine that more reflects back from Jing Chang can be reflexed to the heat dump inside cavity once more, thereby increase the energy that heat dump receives, and can be more evenly distributed so that incide the solar energy on inside cavity heat absorption surface.Coolant flow channel inlet 4 is close to coolant flow channel 5 outer surfaces and is arranged that the benefit of doing like this is effectively to utilize coolant flow channel 5 dispersed heats to come the preheating cooling fluid, and reduces the heat transfer temperature difference of heat dump and outside air, thereby reduces the heat loss of heat dump.
Fig. 3 specific embodiment of the invention solar energy high temperature heat dump vertical view.Secondary condensation mouth 9 effectively receives the solar energy that more reflects back from the heliostat field, reflects it to heat absorption surface in the heat dump chamber.Fluid heat-exchange working medium in the coolant flow channel 5 flows to inlet 4 through cooling, divides a plurality of branch roads to enter in the coolant flow channel 5, thereby makes the fluid that enters in the coolant flow channel 5 be more evenly distributed.The fin 8 that bushing pipe 6 outer surfaces are installed can be a ring rib as shown in the figure, also can be the fin of other shape enhanced heat exchanges such as straight wing, spiral ribs.Heat pipe [1] fork row is arranged, and can effectively eliminate the adverse effect of the trailing vortex district heat exchanging that forms when the hydrodynamic form cylinder flows.
Figure 4 shows that in the specific embodiment of the invention solar energy high temperature heat dump that bushing pipe 6 connected modes in heat pipe 1 condensation segment and condenser 5 are the schematic diagram when being threaded.The screw thread contact-making surface is in order to increase the heat exchange area of heat pipe 1 and condenser 5.Fin 8 is equipped with on bushing pipe 6 surfaces, can be ring wing, straight wing, spiral wing etc., in order to the heat exchange effect of enforcing condensation side and fluid.For avoiding metal to produce bonding when the high temperature, preferably do ceramic treatment at the screw thread contact surface.
Claims (6)
1. a high temperature heat absorber used in solar tower-type thermal power station is characterized in that heat dump is a cavity type, comprises heat pipe [1], heat-resisting heat-insulation layer [2], thermal baffle [3], coolant flow channel [5] and secondary condensation mouth [9]; The condensation segment of heat pipe [1] inserts in the interior bushing pipe [6] of coolant flow channel [5], and the evaporator section of heat pipe [1] is a free end, and the evaporator section outer surface is equipped with fin [11], and the fin of evaporator section outer surface [11] is the straight wing towards incident energy stream; Heat pipe [1] fork row is arranged, and works alone between each heat pipe; The evaporator section of heat pipe [1] is exposed in the heat-absorbing chamber; Heat-absorbing chamber is positioned at coolant flow channel [5] below, and the heat-absorbing chamber opening direction receives sunshine towards Jing Chang, except that opening, and all the other each side-closed of heat-absorbing chamber, each side outer surface all is equipped with heat-resisting heat-insulation layer [2]; The evaporator section of heat pipe [1] is the heat-absorbent surface of heat dump; Coolant flow channel [5] is a stainless steel pressure-bearing type heavy wall side chamber heat exchanger, and rib post [10] is equipped with on the bottom inside surface of coolant flow channel [5]; Thermal baffle [3] is housed between coolant flow channel [5] bottom outer surface and the heat-absorbing chamber top, and thermal baffle [3] opposite heat tube [1] adiabatic section and coolant flow channel [5] play insulation effect.
2. according to the described a kind of high temperature heat absorber used in solar tower-type thermal power station of claim 1, it is characterized in that the evaporator section outer surface of heat pipe [1] and fin [11] surface of evaporator section outer surface all are coated with high temperature resistant solar selectively absorbing coating.
3. according to the described a kind of high temperature heat absorber used in solar tower-type thermal power station of claim 1, it is characterized in that fin [8] being housed with enhanced heat exchange at bushing pipe [6] outer surface, the fin of bushing pipe outer surface [8] is a kind of in ring wing, straight wing, the spiral wing form; The material of the fin of bushing pipe outer surface [8] is metal or porous ceramics.
4. according to claim 1 or 3 described a kind of high temperature heat absorber used in solar tower-type thermal power station, it is characterized in that heat pipe [1] condensation segment and bushing pipe [6] inner surface adopt ring type filling or engage thread to be connected; When adopting engage thread to connect, do ceramic treatment at the screw thread contact surface.
5. according to the described a kind of high temperature heat absorber used in solar tower-type thermal power station of claim 1, it is characterized in that heat-resisting heat-insulation layer [2] and thermal baffle [3] adopt Inorganic Non-metallic Materials or high temperature resistant porous media material to make.
6. according to the described a kind of high temperature heat absorber used in solar tower-type thermal power station of claim 1, it is characterized in that the reflecting surface of secondary condensation mouth [9] and heat dump cavity hatch normal direction are in an acute angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200710065553A CN101033892B (en) | 2007-04-16 | 2007-04-16 | High temperature heat absorber used in solar tower-type thermal power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710065553A CN101033892B (en) | 2007-04-16 | 2007-04-16 | High temperature heat absorber used in solar tower-type thermal power station |
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| Publication Number | Publication Date |
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| CN101033892A CN101033892A (en) | 2007-09-12 |
| CN101033892B true CN101033892B (en) | 2010-05-19 |
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| CN200710065553A Expired - Fee Related CN101033892B (en) | 2007-04-16 | 2007-04-16 | High temperature heat absorber used in solar tower-type thermal power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102486342A (en) * | 2010-12-06 | 2012-06-06 | 杭州三花研究院有限公司 | Solar receiver, disc type solar device and tower type solar device |
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| CN101298944B (en) * | 2008-03-21 | 2010-12-22 | 中国科学院电工研究所 | Passive molten salt thermal absorber |
| CN101881519B (en) * | 2010-07-22 | 2012-05-30 | 王恒月 | All-weather heat-tube vacuum collector |
| CN102278828B (en) * | 2011-05-27 | 2013-02-20 | 中国科学院电工研究所 | High-temperature air and molten salt composite heat absorber |
| CN103017366B (en) * | 2012-12-13 | 2014-06-11 | 东南大学 | Partitioned solar high-temperature heat pipe central receiver |
| CN103017367B (en) * | 2013-01-16 | 2015-11-18 | 南京工业大学 | With the tower type solar composite plate wing hot plate type heat dump of Novel support structure |
| CN105571364B (en) * | 2016-02-02 | 2018-12-18 | 东莞市丰瑞德温控技术有限公司 | A kind of heat exchanger |
| CN106595075A (en) * | 2016-11-11 | 2017-04-26 | 李渊 | Small-sized tower-type Stirling energy-storage photo-thermal electric power generation system |
| CN108954870B (en) * | 2018-04-26 | 2020-05-19 | 福建工程学院 | Solar high-temperature energy storage and heat exchange heat absorber |
| CN110375442A (en) * | 2019-06-06 | 2019-10-25 | 东南大学 | A kind of high temperature solar cavate heat pipe central receiver |
| CN110220177B (en) * | 2019-06-26 | 2024-01-30 | 东方电气集团东方锅炉股份有限公司 | Water side system of solar photo-thermal power generation molten salt steam generation system and operation method |
| CN111076266B (en) * | 2019-12-31 | 2024-04-16 | 西南交通大学 | Multifunctional heat pipe type photovoltaic photo-thermal hot water heating system and heating method |
| CN113446882A (en) * | 2021-06-24 | 2021-09-28 | 中国科学院广州能源研究所 | Heat storage type efficient compact heat exchanger |
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| DE8533467U1 (en) * | 1985-11-28 | 1989-04-06 | Grotjan, Hartmut, Dipl.-Ing., 2200 Elmshorn, De | |
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| CN101033892A (en) | 2007-09-12 |
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