CN105674770A - Shell and tube heat exchanger for exchanging heat of fused salts with different temperatures - Google Patents
Shell and tube heat exchanger for exchanging heat of fused salts with different temperatures Download PDFInfo
- Publication number
- CN105674770A CN105674770A CN201610207993.9A CN201610207993A CN105674770A CN 105674770 A CN105674770 A CN 105674770A CN 201610207993 A CN201610207993 A CN 201610207993A CN 105674770 A CN105674770 A CN 105674770A
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- CN
- China
- Prior art keywords
- tube
- shell
- heat exchanger
- salt
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a shell and tube heat exchanger for exchanging heat of fused salt with different temperatures. The shell and tube heat exchanger is used for exchanging heat between cold salt and hot salt and at least comprises a shell, a first tube plate and a second tube plate which are respectively mounted at both ends in the shell, and a heat exchange tube fixed between the first tube plate and the second tube plate, wherein the heat exchange tube comprises a straight tube and a spiral tube communicated with the straight tube. The shell and tube heat exchanger further comprises a hot salt inlet, a hot salt outlet, a cold salt outlet and a cold salt inlet formed in the bottom of the shell, which are formed in the top of the shell. According to the shell and tube heat exchanger, one end of the heat exchange tube is provided with the spiral tube, so that the problem of thermal expansion of the heat exchange tube due to high temperature of fused salt can be avoided, so as to prevent movement of the tube plates due to expansion pressure and prolong the service life of the shell and tube heat exchanger; and furthermore, due to the arrangement of the spiral tube, the heat exchange area can be enlarged, and thus the heat exchange effect can be greatly enhanced.
Description
Technical field
The present invention relates to the field of heat exchangers of fused salt, particularly relate to the shell-and-tube heat exchanger of a kind of fused salt heat exchanging for different temperatures.
Background technology
Current photo-thermal power generation field with the solar power station of heat storage function with fused salt for heat-storage medium, by converging sunlight fused salt heat extractor, temperature of molten salt is made to increase, fused salt is imported storage heat in heat storage can again, by heat exchanger, the heat in fused salt is converted to the heat of Rankine cycle working medium, being generally adopted the water working medium as Rankine cycle, aqueous water absorbs heat in heat exchanger and becomes the generating of superheated steam pushing turbine. fused salt moves at heat exchanger and intermediate heat transfer pipe flow thereof, more of paramount importance is exactly prevent temperature of molten salt too low, there is frozen block, for binary salt sodium nitrate potassium nitrate, its fusing point is 207 DEG C, it is completely melt temperature 238 DEG C, when fused salt arises that solid crystals lower than 238 DEG C, reduce viscosity lower than 300 DEG C with temperature to sharply increase, so, the fused salt of lower temperature needs to carry out heating up to avoid blocking in the recycling of solar power system, but the fused salt of different temperatures flows inside and outside the heat exchanger tube of heat exchanger, the fused salt of higher temperature can be exchanged heat pipe and cause bigger thermal expansion effects, shorten the service life of heat exchanger, if adding expansion joint to eliminate the impact of thermal expansion, owing to fused salt has corrosivity, the damage expansion joint that high-temperature fused salt can be exceedingly fast, affect the service life of heat exchanger on the contrary.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the shell-and-tube heat exchanger of a kind of fused salt heat exchanging for different temperatures, block pipeline and because temperature of molten salt height exchange heat pipe causes the problem of thermal expansion for solving fused salt in prior art, improve the service life of shell-and-tube heat exchanger.
For achieving the above object and other relevant purposes, the present invention provides the shell-and-tube heat exchanger of a kind of fused salt heat exchanging for different temperatures, and for the heat exchange between cold salt and hot salt, described shell-and-tube heat exchanger at least includes:
Shell, at least includes first end socket at top, bottom and two ends, the second end socket;
First tube sheet and the second tube sheet, be separately mounted to the two ends in described shell;
Heat exchanger tube, is fixed between described first tube sheet and the second tube sheet, and described heat exchanger tube includes straight tube and the serpentine pipe connected with described straight tube;
Hot salt import, is arranged on the cover top portion between described first tube sheet and the first end socket;
Hot salt exports, and is arranged on the cover top portion between described second tube sheet and the second end socket;
Cold salt import, is arranged on the outer casing bottom between the first tube sheet and the second tube sheet;
Cold salt exports, and is arranged on the cover top portion between the first tube sheet and the second tube sheet.
Being used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, be further fixed on deflection plate in described shell, described deflection plate is provided with perforate, the described perforate of traverse of described heat exchanger tube.
Be used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, described deflection plate includes ring baffle plate and/or disk and doughnut baffles.
Be used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, the material of described shell is Kazakhstan N alloy.
It is used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, includes heat-insulation layer and cold salt passage layer from described shell successively to interior.
Be used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, the material of described heat-insulation layer is silicon dioxide or aluminium silicate wool; The material of described cold salt passage layer is Kazakhstan N alloy.
Be used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, the material of described heat exchanger tube is Kazakhstan N alloy.
It is used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, described straight tube and the outer tube wall of serpentine pipe are equipped with independent rack.
Be used for the scheme of a kind of optimization of the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures as the present invention, described independent rack is each attached to support on mould bases, and what support mould bases is connected with mould bases base
As it has been described above, the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures of the present invention, have the advantages that
1, by the setting of serpentine pipe, solve the problem causing thermal expansion of hot salt pair heat exchange pipeline, improve the service life of shell-and-tube heat exchanger;
2, improve the temperature of cold salt, it is to avoid each pipeline of fused salt blocking solar power system, it is ensured that fused salt circulation in solar power system is smooth, it is to avoid the work of each pipeline of dredging solar power system, improve work efficiency;
3, the sensible heat of hot salt is utilized, it is to avoid outside resources inputs, environmental protection and energy saving, it is achieved that making full use of of the energy;
4, heat-insulation layer is set, it is to avoid environment and cold salt carry out changing exchange, decrease sensible heat loss, improve sensible heat utilization rate.
Accompanying drawing explanation
Fig. 1 is the present invention structural representation for the shell-and-tube heat exchanger of the fused salt heat exchanging of different temperatures.
Element numbers explanation
1 shell
11 tops
Bottom 12
13 first end sockets
14 second end sockets
2 first tube sheets
3 second tube sheets
41 straight tubes
42 serpentine pipes
5 hot salt imports
6 hot salt outlets
7 cold salt imports
8 cold salt outlets
91 ring baffle plates
92 disk and doughnut baffles
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily. The present invention can also be carried out by additionally different detailed description of the invention or apply, and the every details in this specification based on different viewpoints and application, can also carry out various modification or change under the spirit without departing from the present invention.
Refer to accompanying drawing.It should be noted that, the diagram provided in the present embodiment only illustrates the basic conception of the present invention in a schematic way, then assembly that in graphic, only display is relevant with the present invention but not component count when implementing according to reality, shape and size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
As shown in Figure 1, the present invention provides the shell-and-tube heat exchanger of a kind of fused salt heat exchanging for different temperatures, and described shell-and-tube heat exchanger at least includes: shell the 1, first tube sheet the 2, second tube sheet 3, heat exchanger tube, hot salt import 5, hot salt outlet 6, cold salt import 7 and cold salt outlet 8.
Described shell 1 includes first end socket 13 and second end socket 14 at cover top portion 11, outer casing bottom 12 and two ends.
The material of described shell 1 is preferably Kazakhstan N alloy. Owing to common material is had corrosivity by fused salt, and Kazakhstan N alloy has good corrosion resistance, therefore adopts Kazakhstan N alloy, it is possible to improve the service life of shell 1.
From described shell 1 to interior, also include heat-insulation layer (diagram) and hollow cold salt passage layer (diagram) successively. The material of described heat-insulation layer is silicon dioxide or aluminium silicate wool; Described cold salt passage layer is for the flowing of cold salt, and material is Kazakhstan N alloy. This cold salt passage layer has good corrosion resistance, improves service life. By arranging heat-insulation layer in the outside of cold salt passage layer, it is possible to reduce the heat exchange of cold salt and extraneous air, it is to avoid sensible heat is wasted, simultaneously compared to conventional vacuum layer, its cost is more cheap, is also easier to realize, and practicality is higher.
Described first tube sheet 2 and the second tube sheet 3 are separately mounted to the two ends in described shell 1, and wherein, the first tube sheet 2 is near the first end socket 13, and the second tube sheet 3 is near the second end socket 14. As it is shown in figure 1, described be arranged on shell 1 in parallel with the second tube sheet 3 of first tube sheet 2, and vertical with the top 11 of described shell 1 and bottom 12.
Described heat exchanger tube is fixed between described first tube sheet 2 and the second tube sheet 3. Specifically, one end of described heat exchanger tube is fixed on the first tube sheet 2, the other end is fixed on the second tube sheet 3.
Described heat exchanger tube includes straight tube 41 and the serpentine pipe 42 connected with described straight tube 41. It should be noted that straight tube 41 can be integrally fixed on the first tube sheet 2, serpentine pipe 42 is fixed on the second tube sheet 3; Can also being that straight tube 41 is fixed on the second tube sheet 3, serpentine pipe 42 be fixed on the first tube sheet 2, and fixed form does not limit at this.
The material of described heat exchanger tube is Kazakhstan N alloy. Owing to common material is had corrosivity by fused salt, and Kazakhstan N alloy has good corrosion resistance, therefore adopts Kazakhstan N alloy, it is possible to improve the service life of heat exchanger tube.
By one end of heat exchanger tube is set to serpentine pipe 42, it is possible to avoid exchanging heat pipe because of temperature of molten salt height and cause the problem of thermal expansion, and then prevent tube sheet from causing movement due to the bulbs of pressure, improve the service life of shell-and-tube heat exchanger; Meanwhile, the serpentine pipe 42 by arranging, it is possible to increase heat exchange area, thus increasing substantially heat transfer effect, utilization of energy is comparatively abundant, create comparatively positive effect in field of heat exchange.
It addition, as it is shown in figure 1, be further fixed on deflection plate in described shell 1, described deflection plate is provided with perforate (diagram), the described perforate of traverse of described heat exchanger tube. The shape of described perforate is consistent with the cross sectional shape of heat exchanger tube pipeline. On the one hand, can exchanging heat pipe play a supporting role by arranging described deflection plate, on the other hand, fused salt can also be played certain barrier effect by described deflection plate, improves the heat transfer effect of heat exchanger tube further.
As preferred scheme, described deflection plate includes ring baffle plate 91 and/or disk and doughnut baffles 92.In the present embodiment, described deflection plate includes ring baffle plate 91 and disk and doughnut baffles 92. Described ring baffle plate 91 and disk and doughnut baffles 92 can be spaced, and equidistant between adjacent ring baffle plate 91 and disk and doughnut baffles 92.
Described hot salt import 5 is arranged in the cover top portion 11 between described first tube sheet 2 and the first end socket 13; Hot salt outlet 6 is arranged in the cover top portion 11 between described second tube sheet 3 and the second end socket 14; Cold salt import 7 is arranged on the outer casing bottom 12 between the first tube sheet 2 and the second tube sheet 3; Cold salt outlet 8 is arranged on the cover top portion 11 between the first tube sheet 2 and the second tube sheet 3.
The principle of heat exchanger heat exchange is approximately as: the fused salt hot salt higher by absorbing solar energy formation temperature, and this hot salt enters from described hot salt import 5, enters back into heat exchanger tube and carries out heat exchange, and heat exchange is subsequently formed the hot salt that temperature is relatively low, exports 6 out from described hot salt. The relatively low cold salt of temperature then enters from the cold salt import 7 of outer casing bottom, through supercool salt passage layer, carries out heat exchange with the hot salt in heat exchanger tube, exports 8 out from the cold salt of cover top portion after heat exchange, becomes the cold salt that temperature is higher. The present invention adopts cold salt and the mode heat exchange of hot salt adverse current, greatly make use of the sensible heat of hot salt, it is ensured that cold salt is back to the solar absorption place heat absorption in cold salt exit smoothly, and the cold salt after heat absorption becomes hot salt can be circulated utilization.
As preferred scheme, described straight tube 41 and the outer tube wall of serpentine pipe 42 are equipped with independent rack (diagram), and independent rack is used for ensureing the distance that heat exchanger tube is mutual, extruding of will not subsiding. Described independent rack is each attached to support mould bases
On (diagram), what support mould bases is connected with mould bases base (diagram).
In sum, the present invention provides the shell-and-tube heat exchanger of a kind of fused salt heat exchanging for different temperatures, for the heat exchange between cold salt and hot salt, described shell-and-tube heat exchanger at least includes: shell, first tube sheet at the two ends being separately mounted in described shell and the second tube sheet, the heat exchanger tube that is fixed between described first tube sheet and the second tube sheet, and described heat exchanger tube includes straight tube and the serpentine pipe connected with described straight tube; Also have and be arranged on the hot salt import of described cover top portion, the outlet of hot salt, the outlet of cold salt and be arranged on the cold salt import of outer casing bottom. The present invention is by being set to serpentine pipe by one end of heat exchanger tube, it is possible to avoids exchanging heat pipe because of temperature of molten salt height and causes the problem of thermal expansion, and then prevent tube sheet from causing movement due to the bulbs of pressure, improves the service life of shell-and-tube heat exchanger; It addition, by the serpentine pipe arranged, it is also possible to increase heat exchange area, thus increasing substantially heat transfer effect.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention. Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art. Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (9)
1. for a shell-and-tube heat exchanger for the fused salt heat exchanging of different temperatures, for the heat exchange between cold salt and hot salt, it is characterised in that described shell-and-tube heat exchanger at least includes:
Shell, at least includes first end socket at top, bottom and two ends, the second end socket;
First tube sheet and the second tube sheet, be separately mounted to the two ends in described shell;
Heat exchanger tube, is fixed between described first tube sheet and the second tube sheet, and described heat exchanger tube includes straight tube and the serpentine pipe connected with described straight tube;
Hot salt import, is arranged on the cover top portion between described first tube sheet and the first end socket;
Hot salt exports, and is arranged on the cover top portion between described second tube sheet and the second end socket;
Cold salt import, is arranged on the outer casing bottom between the first tube sheet and the second tube sheet;
Cold salt exports, and is arranged on the cover top portion between the first tube sheet and the second tube sheet.
2. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 1, it is characterised in that: being further fixed on deflection plate in described shell, described deflection plate is provided with perforate, the described perforate of traverse of described heat exchanger tube.
3. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 2, it is characterised in that: described deflection plate includes ring baffle plate and/or disk and doughnut baffles.
4. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 1, it is characterised in that: the material of described shell is Kazakhstan N alloy.
5. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 1, it is characterised in that: include heat-insulation layer and cold salt passage layer from described shell successively to interior.
6. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 5, it is characterised in that: the material of described heat-insulation layer is silicon dioxide or aluminium silicate wool; The material of described cold salt passage layer is Kazakhstan N alloy.
7. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 1, it is characterised in that: the material of described heat exchanger tube is Kazakhstan N alloy.
8. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 1, it is characterised in that: described straight tube and the outer tube wall of serpentine pipe are equipped with independent rack.
9. the shell-and-tube heat exchanger of the fused salt heat exchanging for different temperatures according to claim 8, it is characterised in that: described independent rack is each attached to support on mould bases, and what support mould bases is connected with mould bases base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207993.9A CN105674770A (en) | 2016-04-05 | 2016-04-05 | Shell and tube heat exchanger for exchanging heat of fused salts with different temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207993.9A CN105674770A (en) | 2016-04-05 | 2016-04-05 | Shell and tube heat exchanger for exchanging heat of fused salts with different temperatures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105674770A true CN105674770A (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610207993.9A Pending CN105674770A (en) | 2016-04-05 | 2016-04-05 | Shell and tube heat exchanger for exchanging heat of fused salts with different temperatures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674770A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733754A (en) * | 2019-02-14 | 2019-05-10 | 浙江中控太阳能技术有限公司 | A kind of connection structure into salt pipe and fused salt storage tank for fused salt storage tank |
| CN110059386A (en) * | 2019-04-10 | 2019-07-26 | 西安交通大学 | A kind of verification calculation method of shell-and-tube heat exchanger outlet parameter |
| CN110425630A (en) * | 2019-08-07 | 2019-11-08 | 临沂智慧新能源科技有限公司 | A kind of mobile accumulation of heat vehicle of the big temperature difference and its supply control method for heat |
| CN110822746A (en) * | 2019-12-04 | 2020-02-21 | 北京工业大学 | Fused salt jet heat exchanger based on solar energy spotlight |
| CN111595181A (en) * | 2020-06-24 | 2020-08-28 | 江苏联储能源科技有限公司 | High-temperature air molten salt heat exchanger |
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| CN203534286U (en) * | 2013-09-26 | 2014-04-09 | 上海锅炉厂有限公司 | Fixed tube-sheet exchanger with temperature control function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733754A (en) * | 2019-02-14 | 2019-05-10 | 浙江中控太阳能技术有限公司 | A kind of connection structure into salt pipe and fused salt storage tank for fused salt storage tank |
| CN110059386A (en) * | 2019-04-10 | 2019-07-26 | 西安交通大学 | A kind of verification calculation method of shell-and-tube heat exchanger outlet parameter |
| CN110059386B (en) * | 2019-04-10 | 2020-10-23 | 西安交通大学 | Calibration calculation method for outlet parameters of shell-and-tube heat exchanger |
| CN110425630A (en) * | 2019-08-07 | 2019-11-08 | 临沂智慧新能源科技有限公司 | A kind of mobile accumulation of heat vehicle of the big temperature difference and its supply control method for heat |
| CN110425630B (en) * | 2019-08-07 | 2021-06-01 | 临沂智慧新能源科技有限公司 | Large-temperature-difference mobile heat storage vehicle and heat supply control method thereof |
| CN110822746A (en) * | 2019-12-04 | 2020-02-21 | 北京工业大学 | Fused salt jet heat exchanger based on solar energy spotlight |
| CN110822746B (en) * | 2019-12-04 | 2024-06-04 | 北京工业大学 | Fused salt jet heat exchanger based on solar condensation |
| CN111595181A (en) * | 2020-06-24 | 2020-08-28 | 江苏联储能源科技有限公司 | High-temperature air molten salt heat exchanger |
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