CN116772632A - Fused salt energy storage heat exchange multifunctional integrated machine - Google Patents
Fused salt energy storage heat exchange multifunctional integrated machine Download PDFInfo
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- CN116772632A CN116772632A CN202210223363.6A CN202210223363A CN116772632A CN 116772632 A CN116772632 A CN 116772632A CN 202210223363 A CN202210223363 A CN 202210223363A CN 116772632 A CN116772632 A CN 116772632A
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- storage tank
- fused salt
- salt storage
- pipe
- molten salt
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- 150000003839 salts Chemical class 0.000 title claims abstract description 167
- 238000004146 energy storage Methods 0.000 title claims abstract description 32
- 238000003860 storage Methods 0.000 claims abstract description 100
- 239000012530 fluid Substances 0.000 claims abstract description 48
- 238000012546 transfer Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000005253 cladding Methods 0.000 claims abstract 2
- 238000004321 preservation Methods 0.000 claims abstract 2
- 230000007306 turnover Effects 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000002440 industrial waste Substances 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 12
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
-
- 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
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/282—Methods of steam generation characterised by form of heating method in boilers heated electrically with water or steam circulating in tubes or ducts
-
- 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
-
- 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
- F28D2020/0078—Heat exchanger arrangements
Landscapes
- 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a multi-functional all-in-one of fused salt energy storage heat transfer, including the fused salt storage tank, the cladding has the heat preservation on the outer wall of fused salt storage tank, be equipped with the coil pipe that is used for the heat transfer in the fused salt storage tank, the one end of coil pipe is equipped with fluid inlet, the other end of coil pipe is equipped with fluid outlet, the lower part in the fused salt storage tank is equipped with the electric heater that is used for heating fused salt in the fused salt storage tank, the top of fused salt storage tank is equipped with the opening that can let personnel business turn over, the opening part is equipped with sealed lid, sealed covering is equipped with breather, the top of fused salt storage tank is equipped with the relief valve that is used for superpressure to let out, be equipped with the temperature measuring device that is used for measuring fused salt temperature in the fused salt storage tank on the wall of fused salt storage tank, the below of fused salt storage tank is equipped with the support, fused salt storage tank is placed on the support. The purpose of the fused salt energy storage and heat exchange multifunctional integrated machine is to convert electric energy of trough electricity and new energy waste into heat energy to be stored in fused salt, and transfer heat of thermal power surplus steam, industrial high-temperature flue gas and the like to the fused salt to be stored.
Description
Technical Field
The invention relates to a fused salt energy storage and heat exchange multifunctional integrated machine.
Background
The molten salt has the characteristics of high working temperature, stable chemical property, safe and reliable use, long service life, environmental protection and no pollution. Along with the development of photo-thermal power generation, the application of molten salt energy storage is more and more extensive, but, the temperature of molten salt energy storage work is high, the molten salt has certain corrosiveness, freeze blocking easily appears, because current molten salt energy storage and heat transfer are components of a whole that can function independently, must drive the molten salt into heat transfer system through the molten salt pump, energy storage and energy release can only be carried out, this leads to can install a large amount of molten salt valves on the pipeline, in actual operation process, not only the cost is high for molten salt pump and molten salt valve, and is fragile, cause the construction cost of system and use maintenance cost all very high, the wider popularization and application of molten salt energy storage and heat transfer system have been restricted to a certain extent.
Disclosure of Invention
The invention aims to provide the fused salt energy storage and heat exchange multifunctional integrated machine which can be used for carrying out energy storage and heat exchange under the conditions that a fused salt pump is not used and a fused salt valve is not arranged, so that the service life of equipment is obviously prolonged, the construction and maintenance cost is reduced, meanwhile, the electric energy of trough electricity and new energy waste is converted into heat energy to be stored in fused salt, the heat of thermal power surplus steam, industrial high-temperature flue gas and the like can be transferred to the fused salt to be stored, and steam for generating electricity, producing and heating is generated when needed, and the integration of multiple functions is realized.
The invention relates to a fused salt energy storage and heat exchange multifunctional integrated machine, which comprises a fused salt storage tank, wherein an insulating layer is coated on the outer wall of the fused salt storage tank, a coil pipe for heat exchange is arranged in the fused salt storage tank, one end of the coil pipe is provided with a fluid inlet, the other end of the coil pipe is provided with a fluid outlet, the lower part in the fused salt storage tank is provided with an electric heater for heating fused salt in the fused salt storage tank, the top of the fused salt storage tank is provided with an opening for personnel to enter and exit, the opening is provided with a sealing cover, the sealing cover is provided with a ventilation device, the top of the fused salt storage tank is provided with a safety valve for overpressure air leakage, the wall of the fused salt storage tank is provided with a temperature measuring device for measuring the fused salt temperature in the fused salt storage tank, the lower part of the fused salt storage tank is provided with a bracket, and the fused salt storage tank is placed on the bracket.
Preferably, the coiled pipe comprises a plurality of sub-coiled pipes, the sub-coiled pipes are in cylindrical spiral shapes, the sub-coiled pipes are arranged around the center of the molten salt storage tank along the vertical direction, the bottom end of each sub-coiled pipe is respectively provided with a sub-coiled pipe fluid inlet, the sub-coiled pipe fluid inlet of each sub-coiled pipe is respectively communicated with the outlet of the fluid input pipe, the top end of each sub-coiled pipe is provided with a sub-coiled pipe fluid outlet, and the sub-coiled pipe fluid outlet of each sub-coiled pipe is respectively communicated with the inlet of the fluid output pipe.
Preferably, the inlet of the fluid input pipe is communicated with the air outlet of the industrial waste heat gas output pipe, the outlet of the fluid output pipe is communicated with the air inlet of the industrial waste heat gas feedback pipe, the industrial waste heat gas output pipe and the industrial waste heat gas feedback pipe are respectively connected with an electric shutter in series, the outer wall of the coil separating pipe is provided with radiating fins, and the electric heater is an armored electric tracing band.
Preferably, the fluid input pipe and the fluid output pipe are respectively arranged along the vertical direction, the fluid input pipe and the fluid output pipe penetrate out of the molten salt storage tank from the upper part of the molten salt storage tank, and the molten salt storage tank is a cylindrical tank or a spherical tank or a rectangular tank.
Preferably, the support comprises a support plate positioned below the molten salt storage tank, the plate surface of the support plate is positioned in the horizontal direction, the molten salt storage tank is placed on the support plate, the molten salt storage tank is not fixed with the support plate, a circular coaming is fixed on the outer side of the top of the support plate, the diameter of the inner wall circle of the coaming after thermal expansion is larger than or equal to the diameter of the outer wall of the fused salt storage tank when the fused salt storage tank is thermally expanded to the maximum diameter, the diameter of the inner wall circle of the coaming after thermal expansion and the maximum diameter of the thermal expansion of the molten salt storage tank are calculated according to the linear expansion coefficient of a metal material used by the fused salt storage tank, a support frame is arranged below the support plate, the support plate is fixedly connected with the support frame, and a plurality of supporting legs are arranged below the support frame;
each supporting leg comprises a supporting column, a supporting leg base plate is fixed at the top of each supporting column, the plate surface of each supporting leg base plate is positioned in the horizontal direction, the upper surface of each supporting leg base plate is respectively attached to the lower surface of one connecting plate, and each connecting plate is fixedly connected with the bottom of the supporting frame;
each supporting leg backing plate is provided with a bolt hole along the vertical direction, the connecting plate corresponding to the position of each bolt hole is respectively provided with a bolt adjusting hole along the vertical direction, each supporting leg backing plate is respectively connected with the corresponding connecting plate through the bolt passing through the bolt hole in a positioning way, each bolt is provided with a nut in a screwing way, each bolt is respectively sleeved with a large gasket, and the lower surface of the large gasket is attached to the upper surface of the connecting plate;
the aperture of the bolt adjusting hole is 1.5-3 times of the aperture of the corresponding bolt hole, and the outer diameter of the large gasket is 1.5-3 times of the aperture of the bolt adjusting hole.
Preferably, the number of the supporting legs is 3-6.
Preferably, the aperture of the bolt adjusting hole is 1.8-2.5 times of the aperture of the corresponding bolt hole, the outer diameter of the large gasket is 1.8-2.5 times of the aperture of the bolt adjusting hole, and the number of the supporting legs is 4.
Preferably, the aperture of the bolt adjusting hole is 2 times of the aperture of the corresponding bolt hole, and the outer diameter of the large gasket is 2 times of the aperture of the bolt adjusting hole.
Preferably, the bottom of the supporting leg is welded with a bottom plate, and the plate surface of the bottom plate is positioned in the horizontal direction.
Preferably, the support frame comprises two transverse channel steels, the two transverse channel steels are arranged at intervals along the left horizontal direction and the right horizontal direction respectively, two longitudinal channel steels are arranged between the two transverse channel steels, the two longitudinal channel steels are arranged at intervals along the front horizontal direction and the rear horizontal direction respectively, and the two transverse channel steels and the two longitudinal channel steels are connected into a whole through welding.
When the fused salt energy storage and heat exchange multifunctional integrated machine is used, fused salt can be filled into a fused salt storage tank in advance through the opening, then the opening is closed through the sealing cover, and if the interior of the fused salt storage tank is required to be maintained, maintenance personnel can enter the interior of the fused salt storage tank through the opening; when the heat of the industrial waste high-temperature flue gas or steam is required to be transferred to the fused salt for storage, the industrial waste high-temperature flue gas or steam can be conveyed into the coil through a fluid inlet arranged at one end of the coil, and then flows out of the coil from a fluid outlet at the other end of the coil, so that the heat of the industrial waste high-temperature flue gas or steam can be transferred to the fused salt for storage, and the electric energy of the electricity discarded from the trough and the new energy can be converted into heat energy through an electric heater for storage in the fused salt. When heat is needed, the heat transfer medium is led into the coil pipe of the fused salt storage tank, the fused salt heats the heat transfer medium in the coil pipe, and the heat transfer medium takes away the heat through the coil pipe for a user to use. When no heat is input, the electric heater can be used for maintaining the temperature in the molten salt storage tank, so that the molten salt is prevented from solidifying. Therefore, the fused salt energy storage and heat exchange multifunctional integrated machine provided by the invention has the characteristics that energy storage and heat exchange can be carried out under the conditions that a fused salt pump is not used and a fused salt valve is not arranged, the service life of equipment is obviously prolonged, the construction and maintenance cost is reduced, meanwhile, the electric energy of electricity discarded by trough electricity and new energy sources can be converted into heat energy to be stored in fused salt, heat of thermal power surplus steam, industrial high-temperature flue gas and the like can be transferred to the fused salt to be stored, and steam for power generation, production and heating can be generated when needed, so that the integration of multiple functions is realized.
The invention is described in detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a front view of a schematic structure of a molten salt energy storage and heat exchange multifunctional integrated machine of the invention;
FIG. 2 is a top view of the A-A cross-section of FIG. 1;
FIG. 3 is a front view of a bracket portion of the molten salt energy storage and heat exchange multifunctional integrated machine of the present invention;
FIG. 4 is a schematic view of the structure of the B-B cross section of FIG. 3;
FIG. 5 is a schematic view of the structure of the C-C cross section in FIG. 3;
fig. 6 is an enlarged front cross-sectional view of a large gasket portion of the bracket portion of fig. 3.
Detailed Description
As shown in fig. 1 and 2, the multifunctional fused salt energy storage and heat exchange integrated machine comprises a fused salt storage tank 1, wherein an insulating layer 3 is coated on the outer wall of the fused salt storage tank 1, a coil pipe for heat exchange is arranged in the fused salt storage tank 1, one end of the coil pipe is provided with a fluid inlet, the other end of the coil pipe is provided with a fluid outlet, an electric heater 8 for heating fused salt in the fused salt storage tank 1 is arranged at the lower part in the fused salt storage tank 1, the electric heater 8 is used for heating the fused salt, the fused salt can be prevented from condensing, electric energy can be converted into heat energy for heat storage, an opening 10 for personnel to enter and exit is formed in the top of the fused salt storage tank 1, a sealing cover 4 is arranged at the opening 10, a ventilation device 5 is arranged on the sealing cover 4, a safety valve 7 for overpressure air leakage is arranged at the top of the fused salt storage tank 1, and the safety valve 7 is discharged under the condition that the internal pressure is suddenly increased, so that the safety of the fused salt storage tank 1 is ensured; the wall of the molten salt storage tank 1 is provided with a temperature measuring device 6 for measuring the temperature of molten salt in the molten salt storage tank 1, the temperature measuring device is used for detecting the temperature of the molten salt in the molten salt storage tank 1, a bracket 9 is arranged below the molten salt storage tank 1, and the molten salt storage tank 1 is placed on the bracket 9.
As a further improvement of the present invention, the above-mentioned coil pipe 2 includes a plurality of sub-coil pipes 2, the plurality of sub-coil pipes 2 are in a cylindrical spiral shape, the plurality of sub-coil pipes 2 are arranged around the center of the molten salt storage tank 1 along the vertical direction, the bottom end of each sub-coil pipe 2 is respectively provided with a sub-coil pipe fluid inlet, the sub-coil pipe fluid inlet of each sub-coil pipe 2 is respectively communicated with the outlet of the fluid input pipe 10, the top end of each sub-coil pipe 2 is provided with a sub-coil pipe fluid outlet, and the sub-coil pipe fluid outlet of each sub-coil pipe 2 is respectively communicated with the inlet of the fluid output pipe 11.
As a further improvement of the invention, the inlet of the fluid input pipe 10 is communicated with the air outlet of the industrial waste heat gas output pipe, the outlet of the fluid output pipe 11 is communicated with the air inlet of the industrial waste heat gas feedback pipe, the industrial waste heat gas output pipe and the industrial waste heat gas feedback pipe are respectively connected with an electric shutter in series, the outer wall of the sub-coil pipe 2 is provided with radiating fins, and the electric heater 8 is an armored electric tracing band.
As a further improvement of the present invention, the fluid input pipe 10 and the fluid output pipe 11 are respectively arranged along the vertical direction, the fluid input pipe 10 and the fluid output pipe 11 penetrate out of the molten salt storage tank 1 from the upper part of the molten salt storage tank 1, and the molten salt storage tank 1 is a cylindrical tank or a spherical tank or a rectangular tank.
As shown in fig. 3, 4, 5 and 6, as a further improvement of the present invention, the above-mentioned bracket 9 includes a supporting plate 13 located below the molten salt storage tank 1, the plate surface of the supporting plate 13 is located in the horizontal direction, the molten salt storage tank 1 is placed on the supporting plate 13, the molten salt storage tank 1 is not fixed with the supporting plate 13, a circular coaming 14 is fixed on the outer side of the top of the supporting plate 13, the diameter of the inner wall circle of the coaming 14 after thermal expansion is greater than or equal to the diameter of the outer wall of the molten salt storage tank 1 when thermal expansion is carried out to the maximum diameter, the diameter of the inner wall circle of the coaming 14 after thermal expansion and the maximum diameter of the thermal expansion of the molten salt storage tank 1 are calculated according to the linear expansion coefficient of the metal material used by the molten salt storage tank 1, a supporting frame 15 is provided below the supporting plate 13, the supporting plate 13 is fixedly connected with the supporting frame 15, and a plurality of supporting legs 16 are provided below the supporting frame 15;
each supporting leg 16 comprises a supporting column 17, a supporting leg base plate 18 is fixed at the top of each supporting column 17, the plate surface of each supporting leg base plate 18 is positioned in the horizontal direction, the upper surface of each supporting leg base plate 18 is respectively attached to the lower surface of one connecting plate 19, and each connecting plate 19 is respectively fixedly connected with the bottom of the supporting frame 15;
a bolt hole 22 is formed in each supporting leg base plate 18 along the vertical direction, a bolt adjusting hole 23 is formed in each connecting plate 19 corresponding to the position of each bolt hole 22 along the vertical direction, each supporting leg base plate 18 is respectively connected with the corresponding connecting plate 19 through bolts 20 penetrating through the bolt holes 22 in a positioning mode, nuts 18 are screwed on each bolt 20, large washers 21 are respectively sleeved on each bolt 20, and the lower surfaces of the large washers 21 are attached to the upper surfaces of the connecting plates 19;
the aperture of the bolt adjusting hole 23 is 1.5-3 times that of the corresponding bolt hole 22, and the outer diameter of the large washer 21 is 1.5-3 times that of the bolt adjusting hole 23.
As a further development of the invention, the number of the legs 16 is 3-6.
As a further improvement of the invention, the aperture of the bolt adjusting hole 23 is 1.8 times to 2.5 times that of the corresponding bolt hole 22, the outer diameter of the large washer 21 is 1.8 times to 2.5 times that of the bolt adjusting hole 23, and the number of the supporting legs 16 is 4.
As a further improvement of the present invention, the hole diameter of the bolt adjusting hole 23 is 2 times that of the corresponding bolt hole 22, and the outer diameter of the large washer 21 is 2 times that of the bolt adjusting hole 23.
As a further improvement of the present invention, the bottom of the leg 16 is welded with a bottom plate 24, and the plate surface of the bottom plate 24 is located in the horizontal direction.
As a further improvement of the present invention, the supporting frame 15 includes two horizontal channel steels 25, the two horizontal channel steels 25 are respectively arranged at intervals along the left-right horizontal direction, two longitudinal channel steels 26 are arranged between the two horizontal channel steels 25, the two longitudinal channel steels 26 are respectively arranged at intervals along the front-back horizontal direction, and the two horizontal channel steels 25 and the two longitudinal channel steels 26 are connected into a whole by welding.
In the use process of the bracket 9, the molten salt storage tank 1 is subjected to larger temperature change, and the volume change of the molten salt storage tank 1 caused by the temperature change can cause the relative displacement of the molten salt storage tank 1 on the supporting plate 13 along the radial direction, so that the coaming 14 can prevent the molten salt storage tank 1 from sliding off the supporting plate 13 due to the displacement, simultaneously, the connecting plate 19 is respectively provided with the bolt adjusting holes 23 along the vertical direction, the aperture of the bolt adjusting holes 23 is larger than the aperture of the corresponding bolt holes 22, the outer diameter of the large gasket 21 is larger than the aperture of the bolt adjusting holes 23, and the expansion and contraction amount of the supporting frame 15 due to the temperature change can be counteracted and slowed down through the bolt adjusting holes 23 on the connecting plate 19, wherein the outer diameter of the large gasket is larger than the bolt adjusting holes 23 on the connecting plate 19, so as to prevent the nuts 28 from falling off from the openings of the connecting plate 19, and causing connection failure. Therefore, the molten salt storage device with the movable support frame and the support legs has the characteristics of absorbing displacement variables caused by temperature change, avoiding equipment damage caused by local stress generated by the storage tank, avoiding molten salt leakage, causing serious pollution to the environment and forming accidental injury to personnel.
When the fused salt energy storage and heat exchange multifunctional integrated machine is used, fused salt can be filled into the fused salt storage tank 1 in advance by using the opening 10, then the opening 10 is closed by using the sealing cover 4, and if the interior of the fused salt storage tank 1 is required to be maintained, maintenance personnel can enter the interior of the fused salt storage tank 1 through the opening 10; when the heat of the industrial waste high-temperature flue gas or steam is required to be transferred to the fused salt for storage, the industrial waste high-temperature flue gas or steam can be conveyed into the coil through a fluid inlet arranged at one end of the coil, and then flows out of the coil from a fluid outlet at the other end of the coil, so that the heat of the industrial waste high-temperature flue gas or steam can be transferred to the fused salt for storage, electric energy of electricity abandoned by trough electricity and new energy can be converted into heat energy through the electric heater 8 for storage in the fused salt, and the fused salt is filled into the fused salt storage tank 1 in advance by utilizing the opening 10. When heat is needed, the heat transfer medium is introduced into the coil of the molten salt storage tank 1, the molten salt heats the heat transfer medium in the coil, and the heat transfer medium takes away the heat through the coil to be supplied to a user for use. When no heat energy is input, the electric heater 8 can be used for maintaining the temperature in the molten salt storage tank 1 to prevent the molten salt from solidifying. Therefore, the fused salt energy storage and heat exchange multifunctional integrated machine provided by the invention has the characteristics that energy storage and heat exchange can be carried out under the conditions that a fused salt pump is not used and a fused salt valve is not arranged, the service life of equipment is obviously prolonged, the construction and maintenance cost is reduced, meanwhile, the electric energy of electricity discarded by trough electricity and new energy sources can be converted into heat energy to be stored in fused salt, heat of thermal power surplus steam, industrial high-temperature flue gas and the like can be transferred to the fused salt to be stored, and steam for power generation, production and heating can be generated when needed, so that the integration of multiple functions is realized.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (10)
1. Molten salt energy storage heat transfer multifunctional integrated machine, characterized by: including fused salt storage tank (1), the cladding has heat preservation (3) on the outer wall of fused salt storage tank (1), be equipped with the coil pipe that is used for the heat transfer in fused salt storage tank (1), the one end of coil pipe is equipped with fluid inlet, the other end of coil pipe is equipped with fluid outlet, the lower part in fused salt storage tank (1) is equipped with electric heater (8) that are used for heating fused salt in fused salt storage tank (1), the top of fused salt storage tank (1) is equipped with opening (10) that can let personnel business turn over, opening (10) department is equipped with sealed lid (4), be equipped with breather (5) on sealed lid (4), the top of fused salt storage tank (1) is equipped with relief valve (7) that are used for the superpressure to let out, be equipped with on the wall of fused salt storage tank (1) and be used for measuring fused salt temperature's temperature measuring device (6) in fused salt storage tank (1), the below of fused salt storage tank (1) is equipped with support (9), fused salt storage tank (1) are placed on support (9).
2. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 1, wherein: the coiled pipe (2) comprises a plurality of sub-coiled pipes (2), the sub-coiled pipes (2) are in cylindrical spiral lines, the sub-coiled pipes (2) are arranged around the center of the molten salt storage tank (1) along the vertical direction, sub-coiled pipe fluid inlets are respectively arranged at the bottom end of each sub-coiled pipe (2), the sub-coiled pipe fluid inlets of each sub-coiled pipe (2) are respectively communicated with the outlet of the fluid input pipe (10), sub-coiled pipe fluid outlets are arranged at the top end of each sub-coiled pipe (2), and the sub-coiled pipe fluid outlets of each sub-coiled pipe (2) are respectively communicated with the inlet of the fluid output pipe (11).
3. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 2, wherein: the inlet of the fluid input pipe (10) is communicated with the air outlet of the industrial waste heat gas output pipe, the outlet of the fluid output pipe (11) is communicated with the air inlet of the industrial waste heat gas feedback pipe, the industrial waste heat gas output pipe and the industrial waste heat gas feedback pipe are respectively connected with an electric shutter in series, the outer wall of the sub-coil pipe (2) is provided with radiating fins, and the electric heater (8) is an armored electric tracing band.
4. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 3, wherein: the fluid input pipe (10) and the fluid output pipe (11) are respectively arranged along the vertical direction, the fluid input pipe (10) and the fluid output pipe (11) penetrate out of the molten salt storage tank (1) from the upper part of the molten salt storage tank (1), and the molten salt storage tank (1) is a cylindrical tank or a spherical tank or a rectangular tank.
5. The molten salt energy storage and heat exchange multifunctional integrated machine according to any one of claims 1 to 4, wherein: the support (9) comprises a supporting plate (13) positioned below the molten salt storage tank (1), the surface of the supporting plate (13) is positioned in the horizontal direction, the molten salt storage tank (1) is placed on the supporting plate (13), a circular coaming (14) is fixed on the outer side of the top of the supporting plate (13), the diameter of an inner wall circle of the coaming (14) after thermal expansion is larger than or equal to the diameter of an outer wall of the fused salt storage tank (1) when the fused salt storage tank (1) is thermally expanded to the maximum diameter, the diameter of the inner wall circle of the coaming (14) after thermal expansion and the maximum diameter of the fused salt storage tank (1) after thermal expansion are calculated according to the linear expansion coefficient of a metal material used by the fused salt storage tank (1), a supporting frame (15) is arranged below the supporting plate (13), the supporting plate (13) is fixedly connected with the supporting frame (15), and a plurality of supporting legs (16) are arranged below the supporting frame (15);
each supporting leg (16) comprises a supporting column (17), a supporting leg base plate (18) is fixed at the top of each supporting column (17), the plate surface of each supporting leg base plate (18) is positioned in the horizontal direction, the upper surface of each supporting leg base plate (18) is respectively attached to the lower surface of one connecting plate (19), and each connecting plate (19) is respectively fixedly connected with the bottom of the supporting frame (15);
a bolt hole (22) is formed in each supporting leg base plate (18) along the vertical direction, bolt adjusting holes (23) are respectively formed in connecting plates (19) corresponding to the positions of each bolt hole (22) along the vertical direction, each supporting leg base plate (18) is respectively connected with the corresponding connecting plate (19) through bolts (20) penetrating through the bolt holes (22) in a positioning mode, nuts (18) are screwed on each bolt (20), large washers (21) are respectively sleeved on each bolt (20), and the lower surfaces of the large washers (21) are attached to the upper surfaces of the connecting plates (19);
the aperture of the bolt adjusting hole (23) is 1.5-3 times of the aperture of the corresponding bolt hole (22), and the outer diameter of the large gasket (21) is 1.5-3 times of the aperture of the bolt adjusting hole (23).
6. The molten salt energy storage and heat exchange multifunctional integrated machine according to claim 5, wherein the multifunctional integrated machine is characterized in that: the number of the supporting legs (16) is 3-6.
7. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 6, wherein: the aperture of the bolt adjusting hole (23) is 1.8-2.5 times that of the corresponding bolt hole (22), the outer diameter of the large gasket (21) is 1.8-2.5 times that of the bolt adjusting hole (23), and the number of the supporting legs (16) is 4.
8. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 7, wherein: the aperture of the bolt adjusting hole (23) is 2 times that of the corresponding bolt hole (22), and the outer diameter of the large gasket (21) is 2 times that of the bolt adjusting hole (23).
9. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 8, wherein: the bottom of landing leg (16) is welded with bottom plate (24), and the face of bottom plate (24) is located the horizontal direction.
10. The molten salt energy storage and heat exchange multifunctional integrated machine as claimed in claim 9, wherein: the supporting frame (15) comprises two transverse channel steel (25), the two transverse channel steel (25) are arranged at intervals along the left and right horizontal directions respectively, two longitudinal channel steel (26) are arranged between the two transverse channel steel (25), the two longitudinal channel steel (26) are arranged at intervals along the front and rear horizontal directions respectively, and the two transverse channel steel (25) and the two longitudinal channel steel (26) are connected into a whole through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210223363.6A CN116772632A (en) | 2022-03-07 | 2022-03-07 | Fused salt energy storage heat exchange multifunctional integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210223363.6A CN116772632A (en) | 2022-03-07 | 2022-03-07 | Fused salt energy storage heat exchange multifunctional integrated machine |
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| Publication Number | Publication Date |
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| CN116772632A true CN116772632A (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210223363.6A Pending CN116772632A (en) | 2022-03-07 | 2022-03-07 | Fused salt energy storage heat exchange multifunctional integrated machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117208428A (en) * | 2023-11-09 | 2023-12-12 | 蓝星(北京)化工机械有限公司 | Split type double-layer high-temperature molten salt storage tank |
-
2022
- 2022-03-07 CN CN202210223363.6A patent/CN116772632A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117208428A (en) * | 2023-11-09 | 2023-12-12 | 蓝星(北京)化工机械有限公司 | Split type double-layer high-temperature molten salt storage tank |
| CN117208428B (en) * | 2023-11-09 | 2024-03-01 | 蓝星(北京)化工机械有限公司 | Split type double-layer high-temperature molten salt storage tank |
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