CN115264995B - Distributed multi-combined supply system with heat storage function - Google Patents
Distributed multi-combined supply system with heat storage function Download PDFInfo
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- CN115264995B CN115264995B CN202210718389.8A CN202210718389A CN115264995B CN 115264995 B CN115264995 B CN 115264995B CN 202210718389 A CN202210718389 A CN 202210718389A CN 115264995 B CN115264995 B CN 115264995B
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- molten salt
- heat storage
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- water
- exchange device
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- 238000005338 heat storage Methods 0.000 title claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 198
- 150000003839 salts Chemical class 0.000 claims description 219
- 238000003756 stirring Methods 0.000 claims description 78
- 239000012267 brine Substances 0.000 claims description 35
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 34
- 238000010992 reflux Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
- F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
- F24H7/0433—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
A distributed multi-combined supply system with a heat storage function comprises a heat storage and exchange device, a refrigerating unit, a hot water circulating pump, a cold water circulating pump and a user side; the heat storage and exchange device comprises two water outlet pipelines and one water return pipeline, the first water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the user side, and the hot water output end of the user side is communicated with the water return pipeline of the heat storage and exchange device; the second water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the refrigerating unit, and the hot water output end of the refrigerating unit is communicated with the water return pipeline of the heat storage and exchange device; the hot water circulating pump is arranged on a water return pipeline of the heat storage and exchange device; the cold water output end of the refrigerating unit is communicated with the cold water input end of the user end, and the cold water output end of the user end is communicated with the cold water input end of the refrigerating unit; the cold water circulating pump is arranged on a water conveying pipeline between the cold water output end of the user side and the cold water input end of the refrigerating unit; the invention improves the heat exchange efficiency and the heat exchange effect.
Description
Technical Field
The invention belongs to the technical field of heating and cooling, and particularly relates to a distributed multi-combined supply system with a heat storage function.
Background
In northern areas of China, because of obvious seasonal changes, the users need to be heated in cold winter, and the users need to be cooled in hot summer. At present, the heating mode in northern areas mainly adopts centralized heating and the cooling mode mainly adopts air conditioning for cooling, and along with the rapid development of heating and cooling technologies, a distributed multi-combined supply system is generated, and the heating and cooling requirements can be simultaneously met through the distributed multi-combined supply system. However, the existing distributed multi-combined supply system generally has the problems of low heat exchange efficiency and poor heat exchange effect, and energy waste is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the distributed multi-combined supply system with the heat storage function, which can convert off-peak electric energy into heat energy for storage, and when a user side needs heating or cooling, the stored heat energy can be used for producing hot water in a high-efficiency heat exchange mode, and the hot water is used for heating the user side, or the hot water is used for driving a refrigerating unit to supply cooling to the user side, so that the heat exchange efficiency and the heat exchange effect of the distributed multi-combined supply system are improved, and the waste of energy sources is avoided.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a distributed multi-combined supply system with a heat storage function comprises a heat storage and exchange device, a refrigerating unit, a hot water circulating pump, a cold water circulating pump and a user side; the heat storage and exchange device comprises two water outlet pipelines and one water return pipeline, the first water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the user side, and the hot water output end of the user side is communicated with the water return pipeline of the heat storage and exchange device; the second water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the refrigerating unit, and the hot water output end of the refrigerating unit is communicated with the water return pipeline of the heat storage and exchange device; the hot water circulating pump is arranged on a water return pipeline of the heat storage and exchange device; the cold water output end of the refrigerating unit is communicated with the cold water input end of the user end, and the cold water output end of the user end is communicated with the cold water input end of the refrigerating unit; the cold water circulating pump is arranged on a water conveying pipeline between the cold water output end of the user end and the cold water input end of the refrigerating unit.
A first valve is arranged on a first path of water outlet pipeline of the heat storage and exchange device, and a second valve is arranged on a second path of water outlet pipeline of the heat storage and exchange device; a third valve is arranged on the water delivery pipeline between the cold water output end of the refrigerating unit and the cold water input end of the user end, and a fourth valve is arranged on the water delivery pipeline between the cold water input end of the refrigerating unit and the cold water output end of the user end; a fifth valve is arranged at the hot water output end of the refrigerating unit; a sixth valve is arranged at the hot water output end of the user end; and a seventh valve is arranged on the water return pipeline of the heat storage and exchange device.
The heat storage and exchange device comprises a molten salt tank, a molten salt stirring mechanism, a brine heat exchanger, a molten salt electric heater and a molten salt backflow conveying mechanism; the molten salt stirring mechanism is arranged at the center of the tank body of the molten salt tank; the salt water heat exchanger and the salt water electric heater are both arranged in the tank body of the salt melting tank, and are respectively positioned at two sides of the salt water stirring mechanism; the molten salt reflux conveying mechanism is arranged at the bottom of the molten salt tank body.
A first water outlet joint, a second water outlet joint and a backwater joint are respectively arranged on the tank body of the molten salt tank, and the first water outlet joint, the second water outlet joint and the backwater joint are all hermetically penetrated on the tank body of the molten salt tank; one end of the first water outlet connector is communicated with the brine heat exchanger, and the other end of the first water outlet connector is communicated with a first water outlet pipeline of the heat storage and exchange device; one end of the second water outlet connector is communicated with the brine heat exchanger, and the other end of the second water outlet connector is communicated with a second water outlet pipeline of the heat storage and exchange device; one end of the backwater joint is communicated with the brine heat exchanger, and the other end of the backwater joint is communicated with a backwater pipeline of the heat storage and exchange device.
The molten salt stirring mechanism comprises a stirring motor, a stirring shaft, a rod-shaped stirring blade, a spiral conveying stirring blade, a guiding drainage cylinder, a drainage cylinder supporting rod, a plate-shaped stirring blade and a blade bracket; the stirring motor is vertically and fixedly arranged at the top of the tank body of the molten salt tank, the motor shaft is downward, the top end of the stirring shaft is coaxially and fixedly connected with the motor shaft of the stirring motor, and the bottom end of the stirring shaft is rotationally connected with the bottom of the tank body of the molten salt tank through a bearing seat; the rod-shaped stirring blade is arranged on the upper half section of the shaft body of the stirring shaft; the spiral conveying stirring blade is arranged on the lower half section of the stirring shaft body; the guide drainage cylinder is coaxially sleeved on the outer side of the spiral conveying stirring blade, and the bottom end of the guide drainage cylinder is fixedly connected with the bottom of the tank body of the molten salt tank through a drainage cylinder supporting rod; the platy stirring paddles are arranged on the paddle support and distributed on the outer side of the guiding drainage cylinder, and the paddle support is fixedly connected to the stirring shaft.
The molten salt reflux conveying mechanism comprises a molten salt conveying pump, a molten salt eduction pipe, a molten salt return pipe, a molten salt reflux main pipe, a molten salt reflux branch pipe and a molten salt spray head; the molten salt conveying pump is fixedly arranged at the bottom of the tank body of the molten salt tank; one end of the molten salt eduction tube passes through the molten salt tank body in a sealing way and is positioned below the molten salt electric heater, and the other end of the molten salt eduction tube is communicated with a molten salt inlet of the molten salt conveying pump; one end of the molten salt return pipe passes through the molten salt tank body in a sealing way and is positioned below the brine heat exchanger, and the other end of the molten salt return pipe is communicated with a molten salt outlet of the molten salt conveying pump; the molten salt return main pipe is positioned in a gap between the brine heat exchanger and the molten salt tank body, and the molten salt return pipe is communicated with the molten salt return main pipe; the molten salt reflux branch pipes are vertically and uniformly distributed in a gap between the brine heat exchanger and the molten salt tank body, and are communicated with the molten salt reflux main pipe; the molten salt spray heads are uniformly arranged on the molten salt backflow branch pipes, and the molten salt spray heads face the brine heat exchanger.
A transparent observation window is arranged on the side part of the tank body of the salt melting tank.
The molten salt adding device is characterized in that a molten salt adding port is formed in the top of the molten salt tank body of the molten salt tank, a sealing cover is arranged at the molten salt adding port, and the sealing cover is in threaded fit with the molten salt adding port.
The bottom of the tank body of the molten salt tank is provided with a molten salt discharge port, and an electric control sealing valve is arranged at the molten salt discharge port.
Tank body supporting legs are arranged at the bottom of the tank body of the salt melting tank.
The invention has the beneficial effects that:
the distributed multi-supply system with the heat storage function can convert low-valley electric energy into heat energy for storage, when a user side needs heating or cooling, the stored heat energy can be used for producing hot water in a high-efficiency heat exchange mode, the hot water is used for heating the user side, or the hot water is used for driving a refrigerating unit to cool the user side, so that the heat exchange efficiency and the heat exchange effect of the distributed multi-supply system are improved, and the waste of energy sources is avoided.
Drawings
FIG. 1 is a schematic diagram of a distributed multi-supply system with heat storage function according to the present invention;
fig. 2 is a schematic structural view (view angle one) of the heat storage and exchange device of the present invention;
fig. 3 is a schematic structural diagram of a heat storage and exchange device (view angle two) of the present invention;
FIG. 4 is a cross-sectional view of the heat storage and exchange device of the present invention;
FIG. 5 is a schematic structural view of a molten salt stirring mechanism of the present invention;
FIG. 6 is a schematic structural view of the molten salt reflux transport mechanism of the present invention;
in the figure, a 1-heat storage heat exchange device, a 2-refrigerating unit, a 3-hot water circulating pump, a 4-cold water circulating pump, a 5-user side, a 6-first valve, a 7-second valve, a 8-third valve, a 9-fourth valve, a 10-fifth valve, a 11-sixth valve, a 12-seventh valve, a 13-molten salt tank, a 14-molten salt stirring mechanism, a 15-brine heat exchanger, a 16-molten salt electric heater, a 17-molten salt reflux conveying mechanism, a 18-first water outlet joint, a 19-second water outlet joint, a 20-backwater joint, a 21-stirring motor, a 22-stirring shaft, a 23-rod-shaped stirring blade, a 24-spiral conveying stirring blade, a 25-guiding drainage cylinder, a 26-drainage cylinder supporting rod, a 27-plate-shaped stirring blade, a 28-blade supporting frame, a 29-molten salt conveying pump, a 30-guiding pipe, a 31-molten salt reflux main pipe, a 32-molten salt reflux pipe, a 33-molten salt reflux branch pipe, a 34-molten salt spray nozzle, a 35-transparent window, a 36-adding port, a 37-discharging port and a 38-tank supporting leg.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 6, a distributed multi-combined supply system with a heat storage function comprises a heat storage and exchange device 1, a refrigerating unit 2, a hot water circulating pump 3, a cold water circulating pump 4 and a user side 5; the heat storage and exchange device 1 comprises two water outlet pipelines and one water return pipeline, the first water outlet pipeline of the heat storage and exchange device 1 is communicated with the hot water input end of the user side 5, and the hot water output end of the user side 5 is communicated with the water return pipeline of the heat storage and exchange device 1; the second water outlet pipeline of the heat storage and exchange device 1 is communicated with the hot water input end of the refrigerating unit 2, and the hot water output end of the refrigerating unit 2 is communicated with the water return pipeline of the heat storage and exchange device 1; the hot water circulating pump 3 is arranged on a water return pipeline of the heat storage and exchange device 1; the cold water output end of the refrigerating unit 2 is communicated with the cold water input end of the user end 5, and the cold water output end of the user end 5 is communicated with the cold water input end of the refrigerating unit 2; the cold water circulating pump 4 is arranged on a water conveying pipeline between the cold water output end of the user end 5 and the cold water input end of the refrigerating unit 2.
A first valve 6 is arranged on a first path of water outlet pipeline of the heat storage and exchange device 1, and a second valve 7 is arranged on a second path of water outlet pipeline of the heat storage and exchange device 1; a third valve 8 is arranged on the water delivery pipeline between the cold water output end of the refrigerating unit 2 and the cold water input end of the user end 5, and a fourth valve 9 is arranged on the water delivery pipeline between the cold water input end of the refrigerating unit 2 and the cold water output end of the user end 5; a fifth valve 10 is arranged at the hot water output end of the refrigerating unit 2; a sixth valve 11 is arranged at the hot water output end of the user end 5; a seventh valve 12 is arranged on the water return line of the heat storage and exchange device 1.
The heat storage and exchange device 1 comprises a molten salt tank 13, a molten salt stirring mechanism 14, a brine heat exchanger 15, a molten salt electric heater 16 and a molten salt backflow conveying mechanism 17; the molten salt stirring mechanism 14 is arranged at the center of the inside of the tank body of the molten salt tank 13; the brine heat exchanger 15 and the molten salt electric heater 16 are arranged in the tank body of the molten salt tank 13, and the brine heat exchanger 15 and the molten salt electric heater 16 are respectively positioned at two sides of the molten salt stirring mechanism 14; the molten salt reflux conveying mechanism 17 is arranged at the bottom of the tank body of the molten salt tank 13.
A first water outlet joint 18, a second water outlet joint 19 and a water return joint 20 are respectively arranged on the tank body of the molten salt tank 13, and the first water outlet joint 18, the second water outlet joint 19 and the water return joint 20 are all hermetically penetrated on the tank body of the molten salt tank 13; one end of the first water outlet joint 18 is communicated with the brine heat exchanger 15, and the other end of the first water outlet joint 18 is communicated with a first water outlet pipeline of the heat storage and exchange device 1; one end of the second water outlet joint 19 is communicated with the brine heat exchanger 15, and the other end of the second water outlet joint 19 is communicated with a second water outlet pipeline of the heat storage and exchange device 1; one end of the backwater joint 20 is communicated with the brine heat exchanger 15, and the other end of the backwater joint 20 is communicated with a backwater pipeline of the heat storage heat exchange device 1.
The molten salt stirring mechanism 14 comprises a stirring motor 21, a stirring shaft 22, a rod-shaped stirring blade 23, a spiral conveying stirring blade 24, a guiding drainage cylinder 25, a drainage cylinder supporting rod 26, a plate-shaped stirring blade 27 and a blade bracket 28; the stirring motor 21 is vertically and fixedly arranged at the top of the tank body of the molten salt tank 13, the motor shaft is downward, the top end of the stirring shaft 22 is coaxially and fixedly connected with the motor shaft of the stirring motor 21, and the bottom end of the stirring shaft 22 is rotationally connected with the bottom of the tank body of the molten salt tank 13 through a bearing seat; the rod-shaped stirring blade 23 is arranged on the upper half section of the shaft body of the stirring shaft 22; the screw conveying stirring blade 24 is arranged on the lower half section shaft body of the stirring shaft 22; the guide drainage cylinder 25 is coaxially sleeved outside the spiral conveying stirring blade 24, and the bottom end of the guide drainage cylinder 25 is fixedly connected with the bottom of the tank body of the molten salt tank 13 through a drainage cylinder supporting rod 26; the platy stirring paddles 27 are arranged on a paddle bracket 28 and distributed on the outer side of the guiding drainage cylinder 25, and the paddle bracket 28 is fixedly connected to the stirring shaft 22.
The molten salt reflux conveying mechanism 17 comprises a molten salt conveying pump 29, a molten salt eduction pipe 30, a molten salt return pipe 31, a molten salt reflux main pipe 32, a molten salt reflux branch pipe 33 and a molten salt spray head 34; the molten salt conveying pump 29 is fixedly arranged at the bottom of the tank body of the molten salt tank 13; one end of the molten salt eduction tube 30 passes through the tank body of the molten salt tank 13 in a sealing way and is positioned below the molten salt electric heater 16, and the other end of the molten salt eduction tube 30 is communicated with a molten salt inlet of the molten salt conveying pump 29; one end of the molten salt return pipe 31 passes through the tank body of the molten salt tank 13 in a sealing way and is positioned below the brine heat exchanger 15, and the other end of the molten salt return pipe 31 is communicated with a molten salt outlet of the molten salt conveying pump 29; the molten salt return main pipe 32 is positioned in a gap between the brine heat exchanger 15 and the tank body of the molten salt tank 13, and the molten salt return pipe 31 is communicated with the molten salt return main pipe 32; the molten salt reflux branch pipes 33 are vertically and uniformly distributed in a gap between the brine heat exchanger 15 and the tank body of the molten salt tank 13, and the molten salt reflux branch pipes 33 are communicated with the molten salt reflux main pipe 32; the molten salt spray heads 34 are uniformly arranged on the molten salt reflux branch pipes 33, and the molten salt spray heads 34 face the brine heat exchanger 15.
A transparent observation window 35 is provided on the tank body side portion of the molten salt tank 13.
The top of the tank body of the molten salt tank 13 is provided with a molten salt adding port 36, a sealing cover is arranged at the molten salt adding port 36, and the sealing cover is in threaded fit with the molten salt adding port 36.
A molten salt discharge port 37 is arranged at the bottom of the tank body of the molten salt tank 13, and an electric control sealing valve is arranged at the molten salt discharge port 37.
Tank support legs 38 are provided at the bottom of the molten salt tank 13.
The following describes a one-time use procedure of the present invention with reference to the accompanying drawings:
in the electricity consumption valley period, the electric heater 16 is powered by using the valley electric energy, the molten salt in the molten salt tank 13 is heated by the electric heater 16, and the valley electric energy is converted into the heat energy of the molten salt for storage.
In the process of heating the molten salt in the molten salt tank 13, the molten salt conveying pump 29 is started, the high-temperature molten salt around the molten salt electric heater 16 firstly enters the molten salt eduction tube 30, then flows through the molten salt conveying pump 29 in sequence through the molten salt return tube 31, the molten salt return main tube 32, the molten salt return branch tube 33 and the molten salt spray head 34, finally flows out of the molten salt spray head 34 and is sprayed to the brine heat exchanger 15, so that medium water in the brine heat exchanger 15 is fully subjected to heat exchange with the high-temperature molten salt, and the problem of low heat exchange efficiency caused by unsmooth flow of the molten salt is avoided.
In addition, in order to further improve the molten salt temperature uniformity in the molten salt tank 13, the stirring motor 21 needs to be started, the stirring shaft 22 is driven to rotate, the rod-shaped stirring blades 23, the spiral conveying stirring blades 24, the blade support 28 and the plate-shaped stirring blades 27 are synchronously driven to rotate through the rotating stirring shaft 22, wherein the rod-shaped stirring blades 23 stir the molten salt at the upper half part of the molten salt tank 13, the plate-shaped stirring blades 27 stir the molten salt at the lower half part of the molten salt tank 13, meanwhile, the molten salt at the lower half part of the molten salt tank 13 has the highest temperature due to direct contact with the molten salt electric heater 16, and under the conveying action of the rotating spiral conveying stirring blades 24, the high-temperature molten salt can upwards move through the guiding drainage cylinder 25, and then the molten salt with the lower upper temperature is downwards pushed to form internal circulation flow of the molten salt, and finally the temperature uniformity of the molten salt is ensured through the internal circulation flow action.
When the user side 5 needs to perform heating in winter, the first valve 6, the third valve 8, the fourth valve 9 and the fifth valve 10 are firstly adjusted to be in a closed state, the second valve 7, the sixth valve 11 and the seventh valve 12 are simultaneously adjusted to be in an open state, then the hot water circulating pump 3 is started, after medium water in the brine heat exchanger 15 fully exchanges heat with high-temperature molten salt, generated hot water flows out of the brine heat exchanger 15 under the pumping action of the hot water circulating pump 3 and enters the hot water input end of the user side 5 through the first path of water outlet pipeline of the heat storage heat exchange device 1, and when the heat release of the hot water is completed at the user side 5, the hot water flows out of the hot water output end of the user side 5 and flows back to the brine heat exchanger 15 through the water return pipeline of the heat storage heat exchange device 1 to perform heat exchange again, so reciprocating circulation is performed, and continuous heating of the user side 5 is realized.
When the user side 5 needs to perform cooling in summer, the second valve 7 and the sixth valve 11 are firstly adjusted to be in a closed state, the first valve 6, the third valve 8, the fourth valve 9, the fifth valve 10 and the seventh valve 12 are simultaneously adjusted to be in an open state, then the hot water circulating pump 3 and the cold water circulating pump 4 are started, after medium water in the brine heat exchanger 15 fully exchanges heat with high-temperature molten salt, generated hot water flows out of the brine heat exchanger 15 under the pumping action of the hot water circulating pump 3 and enters the hot water input end of the refrigerating unit 2 through the second path water outlet pipeline of the heat storage heat exchange device 1, so as to drive the refrigerating unit 2 to operate, and hot water after doing work flows out of the hot water output end of the refrigerating unit 2 and flows back into the brine heat exchanger 15 through the water return pipeline of the heat storage heat exchange device 1 to perform heat exchange again, so that the reciprocating circulation is realized, and the hot water for continuously providing functions for the refrigerating unit 2 is realized. In the running process of the refrigerating unit 2, low-temperature cold water flows out of the cold water output end of the refrigerating unit 2 and then directly flows into the cold water input end of the user end 5, after the cold water absorbs heat at the user end 5, the cold water flows out of the cold water output end of the user end 5 and then directly flows back to the cold water input end of the refrigerating unit 2, cooling is realized in the refrigerating unit 2 again, and the reciprocating circulation is realized, so that continuous cooling of the user end 5 is realized.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (7)
1. The utility model provides a distributed allies oneself with confession system with heat-retaining function which characterized in that: the system comprises a heat storage and exchange device, a refrigerating unit, a hot water circulating pump, a cold water circulating pump and a user side; the heat storage and exchange device comprises two water outlet pipelines and one water return pipeline, the first water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the user side, and the hot water output end of the user side is communicated with the water return pipeline of the heat storage and exchange device; the second water outlet pipeline of the heat storage and exchange device is communicated with the hot water input end of the refrigerating unit, and the hot water output end of the refrigerating unit is communicated with the water return pipeline of the heat storage and exchange device; the hot water circulating pump is arranged on a water return pipeline of the heat storage and exchange device; the cold water output end of the refrigerating unit is communicated with the cold water input end of the user end, and the cold water output end of the user end is communicated with the cold water input end of the refrigerating unit; the cold water circulating pump is arranged on a water conveying pipeline between the cold water output end of the user side and the cold water input end of the refrigerating unit;
the heat storage and exchange device comprises a molten salt tank, a molten salt stirring mechanism, a brine heat exchanger, a molten salt electric heater and a molten salt backflow conveying mechanism; the molten salt stirring mechanism is arranged at the center of the tank body of the molten salt tank; the salt water heat exchanger and the salt water electric heater are both arranged in the tank body of the salt melting tank, and are respectively positioned at two sides of the salt water stirring mechanism; the molten salt reflux conveying mechanism is arranged at the bottom of the tank body of the molten salt tank;
the molten salt stirring mechanism comprises a stirring motor, a stirring shaft, a rod-shaped stirring blade, a spiral conveying stirring blade, a guiding drainage cylinder, a drainage cylinder supporting rod, a plate-shaped stirring blade and a blade bracket; the stirring motor is vertically and fixedly arranged at the top of the tank body of the molten salt tank, the motor shaft is downward, the top end of the stirring shaft is coaxially and fixedly connected with the motor shaft of the stirring motor, and the bottom end of the stirring shaft is rotationally connected with the bottom of the tank body of the molten salt tank through a bearing seat; the rod-shaped stirring blade is arranged on the upper half section of the shaft body of the stirring shaft; the spiral conveying stirring blade is arranged on the lower half section of the stirring shaft body; the guide drainage cylinder is coaxially sleeved on the outer side of the spiral conveying stirring blade, and the bottom end of the guide drainage cylinder is fixedly connected with the bottom of the tank body of the molten salt tank through a drainage cylinder supporting rod; the platy stirring paddles are arranged on the paddle support and distributed on the outer side of the guide drainage cylinder, and the paddle support is fixedly connected to the stirring shaft;
the molten salt reflux conveying mechanism comprises a molten salt conveying pump, a molten salt eduction pipe, a molten salt return pipe, a molten salt reflux main pipe, a molten salt reflux branch pipe and a molten salt spray head; the molten salt conveying pump is fixedly arranged at the bottom of the tank body of the molten salt tank; one end of the molten salt eduction tube passes through the molten salt tank body in a sealing way and is positioned below the molten salt electric heater, and the other end of the molten salt eduction tube is communicated with a molten salt inlet of the molten salt conveying pump; one end of the molten salt return pipe passes through the molten salt tank body in a sealing way and is positioned below the brine heat exchanger, and the other end of the molten salt return pipe is communicated with a molten salt outlet of the molten salt conveying pump; the molten salt return main pipe is positioned in a gap between the brine heat exchanger and the molten salt tank body, and the molten salt return pipe is communicated with the molten salt return main pipe; the molten salt reflux branch pipes are vertically and uniformly distributed in a gap between the brine heat exchanger and the molten salt tank body, and are communicated with the molten salt reflux main pipe; the molten salt spray heads are uniformly arranged on the molten salt backflow branch pipes, and the molten salt spray heads face the brine heat exchanger.
2. The distributed multi-supply system with heat storage function according to claim 1, wherein: a first valve is arranged on a first path of water outlet pipeline of the heat storage and exchange device, and a second valve is arranged on a second path of water outlet pipeline of the heat storage and exchange device; a third valve is arranged on the water delivery pipeline between the cold water output end of the refrigerating unit and the cold water input end of the user end, and a fourth valve is arranged on the water delivery pipeline between the cold water input end of the refrigerating unit and the cold water output end of the user end; a fifth valve is arranged at the hot water output end of the refrigerating unit; a sixth valve is arranged at the hot water output end of the user end; and a seventh valve is arranged on the water return pipeline of the heat storage and exchange device.
3. The distributed multi-supply system with heat storage function according to claim 1, wherein: a first water outlet joint, a second water outlet joint and a backwater joint are respectively arranged on the tank body of the molten salt tank, and the first water outlet joint, the second water outlet joint and the backwater joint are all hermetically penetrated on the tank body of the molten salt tank; one end of the first water outlet connector is communicated with the brine heat exchanger, and the other end of the first water outlet connector is communicated with a first water outlet pipeline of the heat storage and exchange device; one end of the second water outlet connector is communicated with the brine heat exchanger, and the other end of the second water outlet connector is communicated with a second water outlet pipeline of the heat storage and exchange device; one end of the backwater joint is communicated with the brine heat exchanger, and the other end of the backwater joint is communicated with a backwater pipeline of the heat storage and exchange device.
4. The distributed multi-supply system with heat storage function according to claim 1, wherein: a transparent observation window is arranged on the side part of the tank body of the salt melting tank.
5. The distributed multi-supply system with heat storage function according to claim 1, wherein: the molten salt adding device is characterized in that a molten salt adding port is formed in the top of the molten salt tank body of the molten salt tank, a sealing cover is arranged at the molten salt adding port, and the sealing cover is in threaded fit with the molten salt adding port.
6. The distributed multi-supply system with heat storage function according to claim 1, wherein: the bottom of the tank body of the molten salt tank is provided with a molten salt discharge port, and an electric control sealing valve is arranged at the molten salt discharge port.
7. The distributed multi-supply system with heat storage function according to claim 1, wherein: tank body supporting legs are arranged at the bottom of the tank body of the salt melting tank.
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| CN204051495U (en) * | 2014-07-07 | 2014-12-31 | 山东润银生物化工股份有限公司 | A kind of stirred tank |
| CN107030917A (en) * | 2016-01-07 | 2017-08-11 | 刘操 | A kind of High Efficiency Thermal for plastic processing industry mixes machine |
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| CN107990771A (en) * | 2018-01-30 | 2018-05-04 | 常州索拉尔熔盐泵阀科技有限公司 | A kind of molten salt energy-storage heat-exchanger rig using multigroup helical runner blender |
| CN211316294U (en) * | 2019-12-27 | 2020-08-21 | 东北大学设计研究院（有限公司） | Distributed energy multi-union system with molten salt heat storage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2355911B1 (en) * | 2010-03-24 | 2012-02-08 | Herlogas, S.A. | OVEN FOR THE FUSION OF INORGÉ? NICAS SALTS. |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204051495U (en) * | 2014-07-07 | 2014-12-31 | 山东润银生物化工股份有限公司 | A kind of stirred tank |
| CN107030917A (en) * | 2016-01-07 | 2017-08-11 | 刘操 | A kind of High Efficiency Thermal for plastic processing industry mixes machine |
| CN207058908U (en) * | 2017-06-12 | 2018-03-02 | 李国斌 | A kind of cement mixing equipment for building |
| CN107990771A (en) * | 2018-01-30 | 2018-05-04 | 常州索拉尔熔盐泵阀科技有限公司 | A kind of molten salt energy-storage heat-exchanger rig using multigroup helical runner blender |
| CN211316294U (en) * | 2019-12-27 | 2020-08-21 | 东北大学设计研究院（有限公司） | Distributed energy multi-union system with molten salt heat storage |
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