CN114061351B - Multi-energy complementary mobile heating system and method based on adsorption heat storage - Google Patents
Multi-energy complementary mobile heating system and method based on adsorption heat storage Download PDFInfo
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- CN114061351B CN114061351B CN202111346066.2A CN202111346066A CN114061351B CN 114061351 B CN114061351 B CN 114061351B CN 202111346066 A CN202111346066 A CN 202111346066A CN 114061351 B CN114061351 B CN 114061351B
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- 238000005338 heat storage Methods 0.000 title claims abstract description 46
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- 230000000295 complement effect Effects 0.000 title claims abstract description 22
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003463 adsorbent Substances 0.000 claims description 14
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 3
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- YJPVTCSBVRMESK-UHFFFAOYSA-L strontium bromide Chemical compound [Br-].[Br-].[Sr+2] YJPVTCSBVRMESK-UHFFFAOYSA-L 0.000 claims description 3
- 229940074155 strontium bromide Drugs 0.000 claims description 3
- 229910001625 strontium bromide Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
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- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material 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
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/20—Systems characterised by their energy storage means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/50—Energy storage in industry with an added climate change mitigation effect
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses a multi-energy complementary mobile heating system and a method based on adsorption heat storage, wherein the system comprises an electronic supply system, a heat storage subsystem and a circulating subsystem, wherein a circulating fan, an electric heater, a gas-liquid separator and a reactor in the heat storage subsystem are sequentially connected to form a loop, a first electromagnetic valve is positioned between the gas-liquid separator and a humidifier, and a second electromagnetic valve is positioned between the humidifier and the reactor; the circulation subsystem includes a thermally conductive oil pump, a heat exchanger, a circulating water pump, and a thermal user interface. The solar energy and the charging pile are combined, so that the energy sources of charging in the daytime and at night are complementary, the charging and the heat charging can be synchronously carried out, the heat charging efficiency of the system is greatly improved, the heat charging time is shortened, and the carbon emission is extremely low.
Description
Technical Field
The invention relates to the technical field of clean heat supply, in particular to a multi-energy complementary mobile heat supply system and method based on adsorption heat storage.
Background
The movable heat supply is a novel heat supply mode, and the main principle is that industrial waste heat and waste heat in high energy consumption industries such as building materials, rubber, smelting, electric power, chemical industry, papermaking and the like are stored by heat energy through a heat storage module, then heat is conveyed to a heat user by utilizing a tractor, and heat transfer and supply functions can be realized in the form of hot air, hot water or steam. The heat supply mode breaks through the traditional pipeline transportation mode and is a change of heat conveying technology.
The core technology in mobile heat supply is thermal energy storage technology. The existing heat storage medium for mobile heat supply is mainly hot water, and the principle is that sensible heat is stored through the higher specific heat capacity of water. However, on one hand, the temperature difference of hot water heat storage is smaller, so that the heat storage capacity is small; on the other hand, the source of hot water is still a coal-fired boiler with high energy consumption and high pollution, which is not in line with the national conditions of low carbon and emission reduction. The development of this way of storing heat is therefore limited. The phase-change heat storage technology is a research hot spot in recent years, and the principle is to store heat energy through the heat effect in the phase-change process of substances, so that the phase-change heat storage technology has the advantages of high heat storage density and capability of keeping constant temperature in a phase-change temperature range. However, there are supercooling and phase separation (hydrated salt phase change material), low thermal conductivity (organic phase change material), high heat loss, and the like in practical application processes, and thus, it has not been widely used.
In urban heat supply, as the factories are fewer and half of the factories are far away from heat users, the heat supply cost of the industrial waste heat collected by the mobile heat supply vehicle and transported to the heat utilization area is high, and more carbon emission can be caused by the traditional transportation process, so that the meaning of mobile heat supply is lost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a multi-energy complementary mobile heating system and a method based on adsorption heat storage, wherein the multi-energy complementary mobile heating system based on adsorption heat storage adopts the following technical scheme.
The multi-energy complementary mobile heating system based on adsorption heat storage comprises an electronic supply system, a heat storage subsystem and a circulation subsystem, wherein the electronic supply system respectively provides electric energy and control signals for the heat storage subsystem and the circulation subsystem,
The heat storage subsystem comprises a circulating fan, an electric heater, a humidifier, a gas-liquid separator, a reactor, a first electromagnetic valve and a second electromagnetic valve which are all positioned in the container; the circulating fan, the electric heater, the gas-liquid separator and the reactor are sequentially connected to form a loop, the gas-liquid separator is also connected with the humidifier, the first electromagnetic valve is positioned between the gas-liquid separator and the humidifier, liquid in the gas-liquid separator is controlled to flow back to the humidifier, and the second electromagnetic valve is positioned between the humidifier and the reactor and is used for adjusting the humidity of circulating air; the reactor is also connected with the circulation subsystem;
The circulating subsystem comprises a heat conduction oil pump, a heat exchanger, a circulating water pump and a heat user interface; the heat conduction oil pump is positioned at the front end of the side inlet of the reactor and is connected with the heat exchanger; the heat exchanger is positioned between the reactor and the heat user interface and is used for exchanging heat between heat conducting oil and water; the circulating water pump is positioned at the rear end of the inlet of the heat user interface and is connected with the heat exchanger; the thermal user interface is located on the outside of the container for heat output.
Further, the power supply system comprises a solar panel set, a controller and a storage battery set; the solar panel set is positioned outside the container and connected with the controller and the storage battery set; the controller is positioned in the container, and the storage battery pack is positioned at the bottom of the container; the controller is connected with the storage battery pack, the heat storage subsystem and the circulation subsystem, and the storage battery pack is also connected with the heat storage subsystem and the circulation subsystem.
Further, the storage battery pack is provided with a charging interface at the outer side of the container.
Further, a vertical tube group and a header are arranged in the reactor, each branch of the vertical tube group is collected in an air trunk by the header, and metal fins are arranged on the outer side of the vertical tube group; the vertical tube group comprises a plurality of tubes, wherein air flows in the tubes, and heat conduction oil flows among the tubes.
Further, the vertical tube group of the reactor is internally provided with an adsorbent.
Further, the adsorbent is silica gel, magnesium sulfate, strontium bromide or a mixture of at least any two.
Further, the container is a 20 foot or 40 foot standard cargo container, mounted on a mobile heating vehicle.
The invention also provides a multi-energy complementary mobile heating method utilizing the heating system, which comprises a heating step and a heat releasing step, wherein,
The heat filling step is as follows: opening the electric heater and the circulating fan, and closing the first electromagnetic valve, the second electromagnetic valve, the humidifier, the heat conduction oil pump and the circulating water pump; the low-temperature high-humidity air is heated by the electric heater, enters the gas-liquid separator through the circulating fan, and is subjected to gas-liquid separation to obtain high-temperature dry air; the high-temperature dry air flows through the reactor, the adsorbent in the reactor enables the air to be desorbed and stored with heat, and finally the low-temperature high-humidity air flowing out of the reactor reenters the circulating fan for recirculation; when the temperature of the adsorbent in the reactor exceeds the reaction temperature, the heat charging is completed, and the circulating fan and the electric heater are turned off;
The exothermic steps are as follows: opening a first electromagnetic valve, and closing after all water in the gas-liquid separator flows back to the humidifier; the electric power of the storage battery pack is used for driving, and the circulating fan, the second electromagnetic valve, the humidifier, the heat conduction oil pump and the circulating water pump are started; the circulating fan and the humidifier provide low-temperature high-humidity air to enter the reactor, and an adsorption heat release process occurs after the low-temperature high-humidity air contacts with the adsorbent in the reactor, so that the temperature of the vertical tube group in the reactor is increased; the heat conduction oil pump is utilized to drive the heat conduction oil in the gaps of the vertical pipe groups of the reactor, and the heat of the vertical pipe groups is transferred to the heat conduction oil; and the heat of the heat conduction oil is transmitted to a hot water pipe network of a heat user through the heat exchanger through the heat user interface until the temperature of hot water outlet is lower than the user requirement, and the heat release is finished.
Further, the electric energy stored in the storage battery is from solar energy and a charging pile, specifically, the solar energy is utilized to charge the storage battery in the daytime, and the electricity of the charging pile is utilized to charge the storage battery at night.
The invention has the following beneficial effects:
(1) The solar energy and the charging pile are combined to make the energy sources of charging complementary in the daytime and at night, and the charging and the heat charging can be synchronously carried out, so that the heat charging efficiency of the system is greatly improved, the heat charging time is shortened, the carbon emission is extremely low, and the national carbon neutralization strategic goal is met;
(2) The conversion of heat energy and adsorption release energy is realized through the desorption/adsorption process, the heat loss is low, the long-period heat energy storage is realized, and the energy waste caused by frequent heat filling due to the heat loss is reduced; meanwhile, the heat storage density of the adsorption heat storage is superior to that of the phase change heat storage and the sensible heat storage, the heat storage capacity can be greatly increased under the same container loading quality compared with the traditional movable heat storage mode, and the movable heat supply frequency can be reduced in large-scale emergency heat supply application.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-energy complementary mobile heating system based on adsorption heat storage according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a heating process of the mobile heating system in the embodiment of FIG. 1;
FIG. 3 is a schematic diagram of the exothermic process of the mobile heating system in the embodiment of FIG. 1;
Reference numerals illustrate:
1-solar panel group, 2-container, 3-controller, 4-storage battery group, 5-circulating fan, 6-electric heater, 7-humidifier, 8-gas-liquid separator, 9-reactor, 10-first solenoid valve, 11-second solenoid valve, 12-heat conduction oil pump, 13-heat exchanger, 14-circulating water pump, 15-heat user interface.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Example 1
The embodiment provides a multi-energy complementary mobile heating system based on adsorption heat storage, which comprises an electron supply system, a heat storage subsystem and a circulation subsystem, wherein the electron supply system respectively supplies electric energy and control signals for the heat storage subsystem and the circulation subsystem, the system structure is shown in figure 1,
The heat storage subsystem comprises a circulating fan 5, an electric heater 6, a humidifier 7, a gas-liquid separator 8, a reactor 9, a first electromagnetic valve 10 and a second electromagnetic valve 11, which are all positioned inside the container 2, and the circulating fan 5, the electric heater 6, the gas-liquid separator 8 and the reactor 9 are sequentially connected to form a loop.
The gas-liquid separator 8 is also connected with the humidifier 7, a first electromagnetic valve 10 is positioned between the gas-liquid separator 8 and the humidifier 7 for controlling the liquid in the gas-liquid separator 8 to flow back to the humidifier 7, and a second electromagnetic valve 11 is positioned between the humidifier 7 and the reactor 9 for adjusting the humidity of the circulating air. The reactor 9 is also connected to a circulation subsystem.
The circulation subsystem comprises a thermally conductive oil pump 12, a heat exchanger 13, a circulating water pump 14 and a thermal user interface 15. The heat conduction oil pump 12 is positioned at the front end of the side inlet of the reactor 9 and is connected with the heat exchanger 13; a heat exchanger 13 is located between the reactor 9 and the thermal user interface 15 for heat exchange of the heat transfer oil and water. The circulating water pump 14 is positioned at the rear end of the inlet of the heat user interface 15 and is connected with the heat exchanger 13; a thermal user interface 15 is located on the outside of the container 2 for heat output.
In general, the power supply system includes a solar panel set 1, a controller 3, and a battery set 4; the solar panel set 1 is positioned outside the container 2 and connected with the controller 3 and the storage battery set 4. The controller 3 is located in the container 2 and the battery pack 4 is located at the bottom of the container 2. The controller 3 is connected with the storage battery 4, the heat storage subsystem and the circulation subsystem, and the storage battery 4 is also connected with the heat storage subsystem and the circulation subsystem respectively to supply electric energy to all electric equipment and valves in the whole system, as shown in fig. 1. Typically, the battery pack 4 is provided with a charging interface on the outside of the container 2 for connection with a charging device such as a charging post, solar panel pack 1.
As a preferred embodiment, the controller 3 includes a photovoltaic module and an automatic control module, wherein the photovoltaic module is directly connected with the solar panel set 1, and is used for converting direct current generated by the solar panel set 1 into alternating current, and transmitting the alternating current to the storage battery set 4 through the automatic control module; the automatic control module is connected with all electric equipment of the storage battery, the heat storage subsystem and the circulation subsystem and the electromagnetic valve and is used for controlling the start and stop of the storage battery and the electric equipment, the running mode and the valve control.
The reactor 9 is internally provided with a vertical tube group and a header, the header is used for collecting all branches of the vertical tube group in an air trunk, and the outer side of the vertical tube group is provided with metal fins for increasing the heat exchange performance of the vertical tube group and accelerating the heat exchange rate; the vertical tube group comprises a plurality of tubes, wherein air flows in the tubes, and heat conduction oil flows among the tubes.
Further, the vertical tube group of the reactor 9 contains an adsorbent. The adsorbent is typically silica gel, magnesium sulfate, strontium bromide or a mixture of at least two thereof.
It should be noted that, the container 2 used in this embodiment is a 20-foot or 40-foot standard cargo container, and is mounted on a mobile heating vehicle.
Example 2
The embodiment provides a heat supply method of a multi-energy complementary mobile heat supply system based on adsorption heat storage, which adopts solar energy and a charging pile to complement each other in a multi-energy manner, utilizes solar energy in daytime and utilizes off-peak electricity of the charging pile at night to charge a storage battery in the system, and starts an electric heater 6, and realizes the dehydration heat storage process of an adsorbent by introducing dry hot air into a reactor 9. After heat storage is finished, the mobile heating vehicle is transported to an emergency heating place, wet and cold air is introduced into the reactor, so that the water absorption and heat release processes of the adsorbent are realized, the heat exchanger is utilized to realize emergency heating, and after heat supply is finished, the mobile heating vehicle returns to the charging pile to perform the next heat charging cycle.
Specifically, the multi-energy complementary mobile heat supply method based on adsorption heat storage comprises a heat charging step and a heat releasing step, wherein,
The heating step is shown in fig. 2, and specifically comprises the following steps:
S11, opening the electric heater 6 and the circulating fan 5, and closing the first electromagnetic valve 10, the second electromagnetic valve 11, the humidifier 7, the heat conduction oil pump 12 and the circulating water pump 14;
S12, heating low-temperature high-humidity air by an electric heater 6, enabling the air to enter a gas-liquid separator 7 through a circulating fan 5, and obtaining high-temperature dry air after gas-liquid separation;
s13, enabling high-temperature dry air to flow through the reactor 9, and enabling the air to be desorbed and stored by the adsorbent in the reactor 9;
S14, re-entering the low-temperature high-humidity air flowing out of the reactor 9 into the circulating fan 5 for recirculation;
s15, after the temperature of the adsorbent in the reactor 9 exceeds the reaction temperature, the heat filling is completed, and at the moment, the circulating fan and the electric heater are turned off. The system can then be transferred to a heating site by means of a mobile heating vehicle in preparation for emergency heating.
The exothermic steps are shown in fig. 3, and specifically:
s21, opening the first electromagnetic valve 10, and closing the humidifier 7 after all water in the gas-liquid separator 8 flows back to the humidifier 7;
S22, driving by the electric power of the storage battery pack 4, and starting the circulating fan 5, the second electromagnetic valve 11, the humidifier 7, the heat conduction oil pump 12 and the circulating water pump 14;
S23, providing low-temperature high-humidity air through the circulating fan 5 and the humidifier 7, and enabling the air to enter the reactor 9, and enabling the air to contact with the adsorbent in the reactor to generate an adsorption heat release process, so that the temperature of the vertical pipe group in the reactor is increased;
S24, utilizing the heat conduction oil pump 12 to drive heat conduction oil in a gap of the vertical pipe group of the reactor 9, and transferring heat of the vertical pipe group to the heat conduction oil;
S25, transmitting the heat of the heat conducting oil to a hot water pipe network of a heat user through the heat exchanger 13 until the temperature of hot water outlet is lower than the user requirement, and completing heat release. And then the system can be transferred to the charging pile through the mobile heating vehicle to continuously utilize the charging pile and solar energy for charging.
The application provides a multi-energy complementary mobile heating system and a heating method based on adsorption heat storage, and the method and the way for realizing the technical scheme are numerous, the above is only a preferred embodiment of the application, and it should be pointed out that various modifications and variations of the application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. The multi-energy complementary mobile heating system based on adsorption heat storage is characterized by comprising an electronic supply system, a heat storage subsystem and a circulation subsystem, wherein the electronic supply system respectively provides electric energy and control signals for the heat storage subsystem and the circulation subsystem, and the heat storage subsystem comprises a circulation fan, an electric heater, a humidifier, a gas-liquid separator, a reactor, a first electromagnetic valve and a second electromagnetic valve which are all positioned in a container;
The circulating fan, the electric heater, the gas-liquid separator and the reactor are sequentially connected to form a loop, the gas-liquid separator is also connected with the humidifier, the first electromagnetic valve is positioned between the gas-liquid separator and the humidifier, liquid in the gas-liquid separator is controlled to flow back to the humidifier, and the second electromagnetic valve is positioned between the humidifier and the reactor and is used for adjusting the humidity of circulating air; the reactor is also connected with the circulation subsystem;
The circulating subsystem comprises a heat conduction oil pump, a heat exchanger, a circulating water pump and a heat user interface;
the heat conduction oil pump is positioned at the front end of the side inlet of the reactor and is connected with the heat exchanger; the heat exchanger is positioned between the reactor and the heat user interface and is used for exchanging heat between heat conducting oil and water;
The circulating water pump is positioned at the rear end of the inlet of the heat user interface and is connected with the heat exchanger;
The thermal user interface is positioned on the outer side surface of the container and is used for outputting heat;
The power supply system comprises a solar panel set, a controller and a storage battery set; the solar panel set is positioned outside the container and connected with the controller and the storage battery set; the controller is positioned in the container, and the storage battery pack is positioned at the bottom of the container; the controller is connected with the storage battery pack, the heat storage subsystem and the circulation subsystem, and the storage battery pack is also connected with the heat storage subsystem and the circulation subsystem;
The electric energy stored by the storage battery comes from solar energy and a charging pile, specifically, the storage battery is charged by solar energy in the daytime, and the storage battery is charged by off-peak electricity of the charging pile at night.
2. A multi-energy complementary mobile heating system according to claim 1, wherein the battery pack is provided with a charging interface outside the container.
3. A multi-energy complementary mobile heating system according to claim 1, wherein the reactor is internally provided with a vertical tube group and a header, the header collects each branch of the vertical tube group in an air trunk, and the outer side of the vertical tube group is provided with a metal fin; the vertical tube group comprises a plurality of tubes, wherein air flows in the tubes, and heat conduction oil flows among the tubes.
4. A multi-energy complementary mobile heating system according to claim 3, wherein the vertical tube bank of the reactor contains adsorbent.
5. The multi-energy complementary mobile heating system according to claim 4, wherein the adsorbent is silica gel, magnesium sulfate, strontium bromide, or a mixture of at least any two.
6. A multi-energy complementary mobile heating system according to claim 1, wherein the container is a 20-foot or 40-foot standard cargo container mounted on a mobile heating vehicle.
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