CN113237043A - Device for transforming thermal power station by utilizing fused salt energy storage - Google Patents
Device for transforming thermal power station by utilizing fused salt energy storage Download PDFInfo
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- CN113237043A CN113237043A CN202110541132.5A CN202110541132A CN113237043A CN 113237043 A CN113237043 A CN 113237043A CN 202110541132 A CN202110541132 A CN 202110541132A CN 113237043 A CN113237043 A CN 113237043A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/028—Steam generation using heat accumulators
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- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
- F28F13/125—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation by stirring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
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- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
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- 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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
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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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- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to a device for reforming a thermal power station by utilizing molten salt energy storage, which comprises an installation bottom plate, a low-temperature molten salt tank, a heating furnace body, a high-temperature molten salt tank and a steam generator, wherein the low-temperature molten salt tank, the high-temperature molten salt tank and the steam generator are all installed on the installation bottom plate, an installation frame is fixedly installed on the upper surface of the installation bottom plate, the heating furnace body is installed on the installation frame, a first conveying mechanism is arranged between the low-temperature molten salt tank and the heating furnace body, a second conveying mechanism is arranged between the heating furnace body and the high-temperature molten salt tank, the first conveying mechanism and the second conveying mechanism have the same structure, the environmental problem caused by coal burning of the traditional thermal power station is fundamentally solved, the carbon emission is reduced, the problem of overlarge steam conveying distance in the heating of a newly-built remote thermal power station can also be solved, and the investment cost is saved, meanwhile, off-peak electric energy can be effectively utilized, and reasonable utilization of energy is realized.
Description
Technical Field
The invention belongs to the technical field of molten salt, and relates to a device for transforming a thermal power station by utilizing molten salt energy storage.
Background
A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy.
The coal-fired environmental problem that has improved the carbon discharge capacity of traditional thermal power station, arouses is unfavorable for the protection of environment, and steam transport distance is too big problem in the heating of newly-built remote thermal power station, and investment cost is too high, can't effectively utilize simultaneously the millet electric energy, realizes energy rational utilization.
Disclosure of Invention
In view of the above, the present invention aims to provide an apparatus for transforming a thermal power plant by using molten salt energy storage.
In order to achieve the purpose, the invention provides the following technical scheme:
the device for transforming the thermal power station by utilizing the molten salt energy storage comprises an installation bottom plate, a low-temperature molten salt tank, a heating furnace body, a high-temperature molten salt tank and a steam generator, wherein the low-temperature molten salt tank, the high-temperature molten salt tank and the steam generator are all installed on the installation bottom plate, an installation frame is fixedly installed on the upper surface of the installation bottom plate, the heating furnace body is installed on the installation frame, a first conveying mechanism is arranged between the low-temperature molten salt tank and the heating furnace body, a second conveying mechanism is arranged between the heating furnace body and the high-temperature molten salt tank, the first conveying mechanism and the second conveying mechanism are identical in structure, an outlet of the high-temperature molten salt tank is connected with an inlet of the steam generator, the heating furnace body comprises a stirring mechanism, a heating barrel and a scraper plate, the heating barrel is installed on the installation frame, and the stirring mechanism is installed in the heating barrel, the scraper blade is installed at the lower end of the stirring mechanism.
By adopting the technical scheme, the low-temperature molten salt tank conveniently conveys molten salt to the heating furnace body through the first conveying mechanism for heating, the molten salt after heating is conveyed to the high-temperature molten salt tank through the second conveying mechanism for storage when the power consumption is low, the high-temperature molten salt tank is connected with the steam generator when the power consumption is high, saturated steam is generated in the steam generator and is output to a turbine for power generation, the stirring mechanism is arranged to be favorable for uniformly stirring the molten salt in the heating barrel, the efficiency of heating the molten salt is improved, the scraper blade is arranged to be favorable for scraping the molten salt at the bottom of the heating barrel, the residue is reduced, the heating efficiency is improved, the environmental problem caused by coal burning of the traditional thermal power station is fundamentally solved, the carbon emission is reduced, the problem that the steam conveying distance is too large in the heating of a newly-built remote thermal power station can be solved, the investment cost is saved, and simultaneously the low-valley electric energy can be effectively utilized, and reasonable energy utilization is realized.
Preferably, the first conveying mechanism comprises a feed pump and a feed delivery pipe, a feed inlet of the feed pump is connected with a discharge outlet of the low-temperature molten salt tank, one end of the feed delivery pipe is installed on the discharge outlet of the feed delivery pump, and the other end of the feed delivery pipe is installed on the heating furnace body.
Through adopting above-mentioned technical scheme, the conveying pump is connected with the conveying pipeline, is convenient for carry the fused salt in the low temperature fused salt jar heating furnace body in the efficiency of carrying is improved.
The preferred, rabbling mechanism includes pivot, stirring rake and servo motor, the lower extreme of pivot is passed through the bearing and is rotated and install on the heating furnace body, stirring rake fixed mounting in the pivot, servo motor installs on the mounting bracket, servo motor's output pass through the shaft coupling with the pivot transmission is connected.
Through adopting above-mentioned technical scheme, servo motor's output passes through the stirring rake rotation of installation in the shaft coupling drive pivot, and the convenience is carried out even stirring to this internal fused salt of heating furnace, improves the efficiency of heating.
Preferably, a guide groove is formed in the inner wall of the heating barrel, a support frame is installed in the guide groove, and the support frame is in transmission connection with the rotating shaft through a bearing.
Through adopting above-mentioned technical scheme, the guide way that is equipped with makes things convenient for the installation of support frame, is favorable to improving the pivoted stability of pivot through the support frame.
Preferably, a plurality of flow holes are arranged on the upper surface of the stirring paddle and are distributed at equal intervals.
Through adopting above-mentioned technical scheme, the circulation that is equipped with a plurality of circulation holes on the upper surface of stirring rake is favorable to improving the fused salt.
Preferably, a temperature sensor is mounted on the outer side surface of the heating barrel.
Through adopting above-mentioned technical scheme, the molten salt temperature of heating in the heating bucket is conveniently monitored to the temperature sensor that is equipped with.
Preferably, the installation bottom plate is provided with a molten salt preheater, and the molten salt preheater is respectively connected with the steam generator and the low-temperature molten salt tank through pipelines.
Through adopting above-mentioned technical scheme, the fused salt pre-heater that is equipped with is favorable to reducing the fused salt temperature of circulation in the steam generator, carries in the low temperature fused salt jar, conveniently recycles once more.
The invention has the beneficial effects that:
firstly, in the device for transforming the thermal power station by utilizing the molten salt energy storage, a low-temperature molten salt tank conveniently conveys the molten salt into a heating furnace body through a first conveying mechanism for heating, the heated molten salt is conveyed to a high-temperature molten salt tank through a second conveying mechanism for storage when the power consumption is low, and the high-temperature molten salt tank is connected with a steam generator and generates saturated steam in the steam generator to be output to a turbine for power generation when the power consumption is high;
second, this utilize fused salt energy storage to carry out among the device that thermal power plant transformed, the rabbling mechanism that is equipped with is favorable to carrying out the stirring to the fused salt in the heating barrel, improve the efficiency that the fused salt heated, the scraper blade that is equipped with is favorable to scraping the fused salt of heating barrel bottom totally, reduce remaining, improve heating efficiency, fundamentally solves the fire coal environmental problem that arouses of traditional thermal power plant, reduce the carbon discharge capacity, also can solve newly-built too big problem of steam transport distance in the heating of remote thermal power plant, and the investment cost is saved, simultaneously can effectively utilize the low ebb electric energy, realize energy rational utilization.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a schematic view of a partial structure of the present invention;
fig. 4 is a partial structural cross-sectional view of the present invention.
Reference numerals: 1. mounting a bottom plate; 2. a mounting frame; 3. a low temperature molten salt tank; 4. a heating furnace body; 5. a high temperature molten salt tank; 6. a steam generator; 7. a first conveying mechanism; 71. a delivery pump; 72. a delivery pipe; 8. a second conveying mechanism; 9. a stirring mechanism; 91. a rotating shaft; 92. a stirring paddle; 93. a servo motor; 10. a heating barrel; 11. a squeegee; 12. a guide groove; 13. a support frame; 14. a flow-through hole; 15. a temperature sensor; 16. a molten salt preheater.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-4, the device for reforming a thermal power station by using molten salt energy storage comprises a mounting base plate 1, a low-temperature molten salt tank 3, a heating furnace body 4, a high-temperature molten salt tank 5 and a steam generator 6, wherein the low-temperature molten salt tank 3, the high-temperature molten salt tank 5 and the steam generator 6 are all mounted on the mounting base plate 1, a mounting frame 2 is fixedly mounted on the upper surface of the mounting base plate 1, the heating furnace body 4 is mounted on the mounting frame 2, a first conveying mechanism 7 is arranged between the low-temperature molten salt tank 3 and the heating furnace body 4, a second conveying mechanism 8 is arranged between the heating furnace body 4 and the high-temperature molten salt tank 5, the first conveying mechanism 7 and the second conveying mechanism 8 have the same structure, the outlet of the high-temperature molten salt tank 5 is connected with the inlet of the steam generator 6, the heating furnace body 4 comprises a stirring mechanism 9, a heating barrel 10 and a scraper 11, the heating barrel 10 is mounted on the mounting frame 2, the stirring mechanism 9 is installed in the heating barrel 10, and the scraper 11 is installed at the lower end of the stirring mechanism 9.
Referring to fig. 2, the first conveying mechanism 7 includes a material delivery pump 71 and a material delivery pipe 72, a material inlet of the material delivery pump 71 is connected to a material outlet of the low-temperature molten salt tank 3, one end of the material delivery pipe 72 is installed at the material outlet of the material delivery pump 71, the other end of the material delivery pipe 72 is installed on the heating furnace body 4, and the material delivery pump 71 is connected to the material delivery pipe 72, so as to convey the molten salt in the low-temperature molten salt tank 3 into the heating furnace body 4 and improve conveying efficiency.
Referring to fig. 4, the stirring mechanism 9 includes a rotating shaft 91, a stirring paddle 92 and a servo motor 93, the lower end of the rotating shaft 91 is installed on the heating furnace body 4 through the bearing rotation, the stirring paddle 92 is fixedly installed on the rotating shaft 91, the servo motor 93 is installed on the installation frame 2, the output end of the servo motor 93 is connected with the rotating shaft 91 through the shaft coupling in a transmission manner, the output end of the servo motor 93 drives the stirring paddle 92 installed on the rotating shaft 91 through the shaft coupling to rotate, the molten salt in the heating furnace body 4 is conveniently and uniformly stirred, and the heating efficiency is improved.
Referring to fig. 3, a guide groove 12 is formed in an inner wall of the heating barrel 10, a support frame 13 is installed in the guide groove 12, the support frame 13 is in transmission connection with the rotating shaft 91 through a bearing, the guide groove 12 is formed to facilitate installation of the support frame 13, and improvement of stability of rotation of the rotating shaft 91 is facilitated through the support frame 13.
Referring to fig. 4, a plurality of flow holes 14 are provided on the upper surface of the paddle 92, and the plurality of flow holes 14 provided on the upper surface of the paddle 92 are advantageous for improving the flow of the molten salt.
Referring to fig. 3, a temperature sensor 15 is installed on an outer side surface of the heating tub 10, and the temperature sensor 15 is provided to facilitate monitoring of the temperature of the molten salt heated in the heating tub 10.
Referring to fig. 2, install fused salt pre-heater 16 on mounting plate 1, fused salt pre-heater 16 is connected with steam generator 6 and low temperature molten salt jar 3 respectively through the pipeline, and fused salt pre-heater 16 that is equipped with is favorable to reducing the fused salt temperature of circulation in the steam generator 6, carries low temperature molten salt jar 3 in, conveniently carries cyclic utilization once more.
The use principle and the advantages are as follows:
when the device for transforming the thermal power station by utilizing the molten salt energy storage is used, the low-temperature molten salt tank 3 is connected with the conveying pipe 72 through the conveying pump 71, so that the molten salt in the low-temperature molten salt tank 3 can be conveyed into the heating furnace body 4 to improve the conveying efficiency, the molten salt heated in the low-peak power consumption state is conveyed to the high-temperature molten salt tank 5 through the second conveying mechanism 8 to be stored, the high-temperature molten salt tank 5 is connected with the steam generator 6 in the high-peak power consumption state, saturated steam is generated in the steam generator 6 and is output to the turbine for power generation, the output end of the servo motor 93 arranged in the heating furnace body 4 drives the stirring paddle 92 arranged on the rotating shaft 91 to rotate through the coupler, so that the molten salt in the heating furnace body 4 can be uniformly stirred conveniently, the heating efficiency is improved, the device fundamentally solves the environmental problem caused by the coal of the traditional thermal power station, and reduces the carbon discharge capacity, the problem that the steam conveying distance is too large in heating of a newly-built remote thermal power station can be solved, the investment cost is saved, simultaneously, off-peak electric energy can be effectively utilized, and reasonable utilization of energy is realized.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (7)
1. Utilize fused salt energy storage to carry out device that thermal power plant was reformed transform, including mounting plate (1), low temperature fused salt jar (3), heating furnace body (4), high temperature fused salt jar (5) and steam generator (6), its characterized in that: the low-temperature molten salt tank (3), the high-temperature molten salt tank (5) and the steam generator (6) are all installed on an installation base plate (1), a mounting frame (2) is fixedly installed on the upper surface of the installation base plate (1), the heating furnace body (4) is installed on the mounting frame (2), a first conveying mechanism (7) is arranged between the low-temperature molten salt tank (3) and the heating furnace body (4), a second conveying mechanism (8) is arranged between the heating furnace body (4) and the high-temperature molten salt tank (5), the first conveying mechanism (7) is identical to the second conveying mechanism (8) in structure, an outlet of the high-temperature molten salt tank (5) is connected with an inlet of the steam generator (6), and the heating furnace body (4) comprises a stirring mechanism (9), a heating barrel (10) and a scraper (11), install heating bucket (10) on mounting bracket (2), rabbling mechanism (9) are installed in heating bucket (10), scraper blade (11) are installed the lower extreme of rabbling mechanism (9).
2. The device for thermal power plant transformation by using molten salt energy storage according to claim 1, is characterized in that: first conveying mechanism (7) are including conveying pump (71) and conveying pipeline (72), the feed inlet of conveying pump (71) with the discharge gate of low temperature molten salt jar (3) is connected, the one end of conveying pipeline (72) is installed on the discharge gate of conveying pump (71), the other end of conveying pipeline (72) is installed on heating furnace body (4).
3. The device for thermal power plant transformation by using molten salt energy storage according to claim 1, is characterized in that: rabbling mechanism (9) are including pivot (91), stirring rake (92) and servo motor (93), the lower extreme of pivot (91) passes through the bearing and rotates to be installed on heating furnace body (4), stirring rake (92) fixed mounting be in on pivot (91), servo motor (93) are installed on mounting bracket (2), the output of servo motor (93) pass through the shaft coupling with pivot (91) transmission is connected.
4. The device for thermal power plant transformation by using molten salt energy storage according to claim 3, characterized in that: be provided with guide way (12) on the inner wall of heating bucket (10), install support frame (13) in guide way (12), support frame (13) pass through the bearing with pivot (91) transmission is connected.
5. The device for thermal power plant transformation by using molten salt energy storage according to claim 4, is characterized in that: the upper surface of the stirring paddle (92) is provided with a plurality of flow holes (14) which are distributed at equal intervals.
6. The device for thermal power plant transformation by using molten salt energy storage according to claim 1, is characterized in that: and a temperature sensor (15) is arranged on the outer side surface of the heating barrel (10).
7. The device for thermal power plant transformation by using molten salt energy storage according to claim 1, is characterized in that: the installation bottom plate (1) is provided with a molten salt preheater (16), and the molten salt preheater (16) is respectively connected with the steam generator (6) and the low-temperature molten salt tank (3) through pipelines.
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| CN202110541132.5A CN113237043A (en) | 2021-05-18 | 2021-05-18 | Device for transforming thermal power station by utilizing fused salt energy storage |
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| CN202110541132.5A CN113237043A (en) | 2021-05-18 | 2021-05-18 | Device for transforming thermal power station by utilizing fused salt energy storage |
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