CN109059318A - A kind of fountain packed bed heat reservoir and its operation method - Google Patents
A kind of fountain packed bed heat reservoir and its operation method Download PDFInfo
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- CN109059318A CN109059318A CN201811023046.XA CN201811023046A CN109059318A CN 109059318 A CN109059318 A CN 109059318A CN 201811023046 A CN201811023046 A CN 201811023046A CN 109059318 A CN109059318 A CN 109059318A
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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
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/007—Systems for reclaiming waste heat including regenerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of fountain packed bed heat reservoir and its operation methods, the field of thermal energy storage for high temperature.This system is mainly made of components such as fountain packed bed regenerative apparatus, fluid reservoir, heat exchanger, heat source feed end, heat source user terminal, condenser, liquid collecting tanks.The system is in the heat accumulation stage, and by liquid heat transfer medium, the thermal energy storage that heat source feed end is provided is in the solid heat storage medium in packed bed；With the hot stage, the thermal energy in solid material is released and to generate electricity or heat.Fountain packed bed heat reservoir and operation method of the invention has many advantages, such as heat storage efficiency height, heat quality height, Applicable temperature field width, at low cost, safe operation, especially suitable in high temperature solar energy thermal-power-generating and industrial high temperature field of waste heat utilization, it simultaneously can also be with extensive physics energy storage, if compressed-air energy-storage system carries out the complementation of using energy source step, the utilization efficiency of the energy is improved.
Description
Technical field
The present invention relates to a kind of heat reservoir more particularly to a kind of fountain packed bed heat reservoir and its operation method,
Field of thermal energy storage for high temperature.The system is provided heat source feed end by liquid heat transfer medium in the heat accumulation stage
Thermal energy storage is in the solid heat storage medium in packed bed；With the hot stage, the thermal energy in solid material is released and is used together
To generate electricity or heat.Fountain packed bed heat reservoir and operation method of the invention is high with heat storage efficiency, heat quality is high,
The advantages that Applicable temperature field width, at low cost, safe operation, especially suitable for high temperature solar energy thermal-power-generating and industrial high temperature waste heat
It utilizes etc. in other high temperature accumulation of heat fields, while can also be with extensive physics energy storage, such as compressed-air energy-storage system carries out
Using energy source step is complementary, improves the utilization efficiency of the energy.
Background technique
In face of energy crisis, the cleanings such as water energy, wind energy, biomass energy, solar energy are being actively developed in countries in the world can be again
The research work of the raw energy.The high CO of production process energy consumption of solar panel in solar photovoltaic technology2Discharge amount is big, power generation effect
Low rate is the bottleneck problem for restricting technology development.And solar energy thermal-power-generating is that another in addition to photovoltaic power generation technology has very
The solar energy generation technology for the potentiality that develop on a large scale, it is also the renewable energy power generation skill of the most economic competitiveness in addition to wind-powered electricity generation
The solar radiant energy being collected into is changed into superheated steam through heat exchanger by art, solar thermal collector, with traditional power cycle
It produces electricl energy, there is the advantages of technology maturation, cost of electricity-generating is low and is easy with fossil fuel formation hybrid power system.But
A series of problems, such as unstability caused by as the discontinuity round the clock of solar energy and as cloudy overcast and rainy, to solar energy
The steady output of heat generating system electric power produces very big influence.Therefore regenerative apparatus is set in solar heat power generation system
It is one of most efficient method.
Solar heat-preservation can be divided into sensible heat accumulation of heat, latent-heat storage and chemical heat accumulation according to the difference of heat accumulation mechanism.Obviously it stores
Thermal technology one kind the most mature in three of the above technology, but to obtain more economy, controllability and efficient storage
Hot mode also faces great number of issues, influence regenerative apparatus factor mainly have it is following: 1) unit volume or unit mass
The energy storage density of heat-storing material；2) heat-exchange capacity between heat transfer medium and heat storage medium；3) chemical property of heat-storing material；
4) number and invertibity of storage system circulation；5) compatibility between heat-conducting fluid and heat exchanger or heat storage medium；6) heat dissipation damage
It loses.And the developing direction of solar heat-preservation system is low cost, high efficiency and long-time accumulation of heat.But existing heat-storage technology is each
Aspect Shortcomings: fuse salt heat accumulation corrosivity is strong, easily solidifies；Superheated steam heat accumulation pressure is high, and required fluid reservoir cost is too high；
Conduction oil heat accumulation cost is too high.
Summary of the invention
For the disadvantages mentioned above and deficiency of the prior art, the invention proposes a kind of fountain packed bed heat reservoir and its
Operation method, with the heat-exchange capacity between heat transfer medium and heat storage medium is strong, at low cost, high-efficient, safety coefficient is high
Advantage is very suitable to the high temperatures heat reservoir such as solar heat power generation system and industrial high temperature UTILIZATION OF VESIDUAL HEAT IN.Spray of the invention
Leaching formula packed bed heat reservoir is mainly by fountain packed bed regenerative apparatus, fluid reservoir, heat exchanger, pump, heat source feed end, heat source
The components such as user terminal, voltage-stabilizing system, condenser, liquid collecting tank composition.Be it is a kind of by energy such as electric energy, thermal energy, heat chemistrys opposite
It is stored in by way of directly or indirectly exchanging heat in the form of thermal energy in the packed bed in heat reservoir when sufficient, when needed
Wait again release thermal energy is converted to electric energy or thermal energy directly to the heat reservoir of user.The system is led in the heat accumulation stage
Liquid heat transfer medium is crossed, the thermal energy storage that heat source feed end is provided is in the solid heat storage medium in packed bed；With hot rank
Section, the thermal energy in solid material is released and to generate electricity or heat.Fountain packed bed heat reservoir tool of the invention
There are heat storage efficiency height, heat quality height, Applicable temperature field width, at low cost, safe operation, too especially suitable for high temperature
In positive energy heat power generation and industrial high temperature field of waste heat utilization, while can also be with extensive physics energy storage, such as compressed-air energy storage
System carries out the complementation of using energy source step, improves the utilization efficiency of the energy.
The present invention is that technical solution used by solving its technical problem is:
A kind of fountain packed bed heat reservoir, including fountain packed bed regenerative apparatus, low-temperature liquid storage tank, high temperature liquid storage
Tank, heat exchanger, heat source feed end, heat source user terminal, condenser and liquid collecting tank, which is characterized in that
The entrance of the heat source feed end is equipped with the first control valve, and exit is equipped with the second control valve,
The outlet of the heat source feed end is connected to by a main line with the hot side import of the heat exchanger, the main line
It is equipped with third control valve door,
The hot side outlet of the heat exchanger is connected to the first liquid-inlet of the low-temperature liquid storage tank, the heat exchanger it is cold
Side is connected to the heat source user terminal,
The inlet communication of the liquid outlet of the low-temperature liquid storage tank and the heat source feed end,
The outlet of the heat source feed end also passes through at the top of bypass conduit and the fountain packed bed regenerative apparatus
Inlet connection,
The leakage fluid dram classification two-way of the fountain packed bed regenerative apparatus bottom, all the way through one the 8th control valve and institute
The second liquid inlet communication of low-temperature liquid storage tank is stated, another way connects through the import of one the 7th control valve and the high temperature fluid reservoir
It is logical,
Inlet at the top of the fountain packed bed regenerative apparatus and it is equipped with control valve at the leakage fluid dram of bottom,
The outlet of the high temperature fluid reservoir is connected to the hot side import of the heat exchanger, and on connecting pipeline between the two
Equipped with the 6th control valve,
It is additionally provided with a gas vent at the top of the low-temperature liquid storage tank, the gas vent is successively through one first relief valve, cold
With the inlet communication of the liquid collecting tank after the hot side of condenser, the liquid collecting tank is equipped with the second relief valve, when the low temperature liquid storage
After pressure rise to setting pressure in tank and/or liquid collecting tank, each relief valve is automatically turned on,
Exporting for the heat source feed end is additionally provided with a connecting pipe road between the outlet of the low-temperature liquid storage tank, and
The connecting pipeline is equipped with the tenth control valve.
Preferably, the heat source feed end is solar energy heat collector, power plant's high-temperature flue gas or steel mill high-temperature flue gas etc.
The device or system of liquid heat transfer medium can be heated.
Preferably, the liquid outlet of the low-temperature liquid storage tank is equipped with a cryogenic pump；The exit of the high temperature fluid reservoir
Equipped with a high-temperature pump.
Preferably, the quantity of the fountain packed bed regenerative apparatus is two or more, and arrangement mode is simultaneously
Connection, series connection or both combination.
Preferably, the fountain packed bed regenerative apparatus includes a closed tank, is equipped with spray in the closed tank
The top of the packed bed is arranged in head and packed bed, the spray head, and the packed bed is equipped with solid-state heat-storing material, described
The import of spray head is connected to the inlet of the fountain packed bed regenerative apparatus, and the spray head is feed liquor to be atomized into
Fine drop or several tiny fluid columns, and spray onto the solid-state heat-storing material on the packed bed, make feed liquor and solid-state accumulation of heat
Material carries out heat exchange, and the thermal energy storage in feed liquor is released into solid-state heat-storing material or by the heat that solid-state heat-storing material stores
It is put into feed liquor, to complete accumulation of heat or heat release.
Preferably, it is just being arranged in the packed bed equipped with several layers or staggered cell channel, the solid-state stores
Hot material is arranged in each cell channel.
Preferably, the top of the closed tank also passes through a connecting pipe Lu Yuyi pressure stabilizing and filter element is connected to, and
The connecting pipeline is equipped with the 4th control valve.
Preferably, several temperature and pressure-detecting device are additionally provided in the closed tank.
Preferably, the fountain packed bed heat reservoir further includes a regenerator, the liquid discharge of the low-temperature liquid storage tank
Inlet communication mouthful behind the cold side of the regenerator with the heat source feed end, the gas vent at the top of the low-temperature liquid storage tank
The successively inlet communication after the first relief valve, the hot side of regenerator, the hot side of condenser with the liquid collecting tank.
Further, the present invention also provides the operation methods of above-mentioned fountain packed bed heat reservoir:
When the system is in heat accumulation mode, when the system is in heat accumulation mode, first control valve is opened
Door, the second control valve, third control valve door, the 8th control valve, the first relief valve, close remaining control valve, described low
Cryogenic liquid heat transfer medium in warm fluid reservoir squeezes into the heat source feed end, and the heat source feed end, which conducts heat low temperature liquid, to be situated between
After matter is heated to be high-temp liquid heat transfer medium, a part flows into the heat exchanger to heat source user terminal heat supply, separately by main line
A part flows into the fountain packed bed regenerative apparatus by bypass line, and carries out with the solid-state heat storage medium in packed bed
Heat is transmitted to after solid-state heat storage medium and is changed into cryogenic liquid heat transfer medium by heat exchange, and cryogenic liquid heat transfer medium is by filling out
The leakage fluid dram outflow for filling a bottom enters the low-temperature liquid storage tank, and the fluid temperature at the leakage fluid dram of packed bed lower end reaches setting
When value, it is considered as the completion of heat accumulation process, closes two control valves of the fountain packed bed regenerative apparatus upper and lower ends.
Further, when the system is in heat release mode, close first control valve, the second control valve,
Third control valve door, the 8th control valve open the 6th control valve, the 7th control valve, the tenth control valve, described
Low temperature liquid heat transfer medium in low-temperature liquid storage tank is flowed into the fountain through the connecting pipeline where the tenth control valve and fills out
It fills in a regenerative apparatus, and heat exchange occurs with solid heat storage medium therein and is changed into high-temperature liquid state heat transfer medium, Zhi Houliu
Enter into the high temperature fluid reservoir, and be further transported in heat exchanger and transfer heat to heat source user terminal, works as packed bed
After heat-transfer medium temperature at the leakage fluid dram of lower end reaches setting value, it is considered as the completion of heat release process, closes the fountain packed bed
The control valve of regenerative apparatus upper and lower ends, and simultaneously close off each control valve being connected with heat energy output end.
Further, when the system does not work, all control valves are all in opening state, inside whole system
Pressure drain to atmospheric pressure.
The present invention also provides the fountain packed bed heat reservoirs of another structure type.Fountain packed bed storage
Hot systems, including heat source feed end, fountain packed bed regenerative apparatus, heat exchanger, steam generator, condenser, the first low temperature
Fluid reservoir, the second low-temperature liquid storage tank, liquid collecting tank, pressure stabilizing and filter element, heat source user terminal, which is characterized in that
The first control valve is arranged in the entrance of the heat source feed end, and the second control valve is arranged in exit,
The outlet of the heat source feed end is divided into two-way, stores up after the hot side of the heat exchanger with first low temperature all the way
The liquid-inlet of flow container is connected to, another way after the hot side of the steam generator with the liquid of first low-temperature liquid storage tank into
Mouth connection, and the connecting pipeline between the hot side outlet of the steam generator and the liquid-inlet of first low-temperature liquid storage tank
It is equipped with the tenth control valve, the cold side of the steam generator is connected to the heat source user terminal,
The inlet communication of the liquid outlet of first low-temperature liquid storage tank and the heat source feed end, the first low temperature storage
Be additionally provided with a gas vent at the top of flow container, the gas vent successively through a relief valve, condenser hot side after with the liquid collecting
The inlet communication of tank also is provided with relief valve on the liquid collecting tank,
Third control valve door is arranged in the cold side outlet of the heat exchanger, is equipped with the 7th control valve, institute at cold side import
The cold side outlet port for stating heat exchanger is connected to the inlet at the top of the fountain packed bed regenerative apparatus, the fountain packed bed
The second liquid inlet communication of the leakage fluid dram of regenerative apparatus bottom and second low-temperature liquid storage tank, the fountain packed bed store
Control valve is provided at the inlet and leakage fluid dram of thermal, the liquid outlet of second low-temperature liquid storage tank is divided into two-way,
It is connected to all the way with the cold side import of the heat exchanger, another way is filled through one the 6th control valve and the fountain packed bed accumulation of heat
The inlet connection set,
Inlet communication of the leakage fluid dram of the fountain packed bed regenerative apparatus also with the high temperature fluid reservoir, and the height
The entrance of warm fluid reservoir is equipped with the 8th control valve, and the outlet of the high temperature fluid reservoir is divided into two-way, all the way through one the 4th control
Valve processed is connected to the inlet of the fountain packed bed regenerative apparatus, and another way is through one the 5th control valve and the steam
The hot side import of generator is connected to.
Preferably, the fountain packed bed heat reservoir further includes a regenerator, the liquid of first low-temperature liquid storage tank
Body exports inlet communication behind the cold side of the regenerator with the heat source feed end, at the top of first low-temperature liquid storage tank
The gas vent successively inlet communication after relief valve, the hot side of regenerator, the hot side of condenser with the liquid collecting tank.
Preferably, the heat source user terminal be a steam generating system, the steam generating system include steam engine,
Condenser, liquid collecting tank, and the cold side of the steam engine, condenser, liquid collecting tank, steam generator is sequentially communicated, and forms one
Steam-electric power circulation.
Further, a circulating pump is arranged in the exit of the liquid collecting tank.
Preferably, one first cryogenic pump, the second low temperature storage is arranged in the liquid outlet of first low-temperature liquid storage tank
One second cryogenic pump is arranged in the liquid outlet of flow container, and a high-temperature pump is arranged in the exit of the high temperature fluid reservoir.
Preferably, also by one with valvular connecting pipeline and a pressure stabilizing at the top of the fountain packed bed regenerative apparatus
And filter element connection.
Preferably, the fountain packed bed regenerative apparatus includes a closed tank, is equipped with spray in the closed tank
The top of the packed bed is arranged in head and packed bed, the spray head, and the packed bed is equipped with solid-state heat-storing material, described
The import of spray head is connected to the inlet at the top of the fountain packed bed regenerative apparatus.
Further, the present invention also provides the operation methods of above-mentioned fountain packed bed heat reservoir, which is characterized in that
At the heat accumulation stage, the first control valve, the second control valve, third control valve door, the 7th control valve, the tenth control are opened
Valve closes remaining each control valve；Liquid heat transfer medium in first low-temperature liquid storage tank enters heat source feed end, by liquid
State heat transfer medium is heated to be high-temperature heat-transfer medium, in heat source feed end thermal energy abundance, described in high-temperature heat-transfer medium flows into all the way
The hot side of steam generator after the heat source user terminal heat release to returning in first low-temperature liquid storage tank, described in another way enters
It is returned after the hot side heat release of heat exchanger in first low-temperature liquid storage tank；At the same time, the liquid in second low-temperature liquid storage tank
State heat transfer medium enters the cold side endothermic transition of the heat exchanger and fills to enter the fountain after high-temperature liquid state heat transfer medium
Bed regenerative apparatus, and heat exchange is carried out with the solid-state heat storage medium in packed bed, change after heat is transmitted to solid-state heat storage medium
For low temperature liquid heat transfer medium, second low-temperature liquid storage tank is back to by the leakage fluid dram of packed bed bottom later, works as drain
When liquid heat transfer medium temperature at mouthful reaches setting value, it is considered as the completion of heat accumulation process, closing is connected with packed bed upper and lower ends
Two control valves connect.
Further, the liquid heat transfer medium temperature in heat-accumulating process, inside the fountain packed bed heat reservoir
When degree increases, internal system pressure is also with raising, when pressure is higher than setting value, is carried out by the relief valve being arranged in system
Row pressure, the high-temperature gas of discharge successively through the hot side of the regenerator, the condenser cold side heat release after enter the liquid collecting
In tank.
Further, after the pressure in the liquid collecting tank reaches setting pressure, the relief valve of the liquid collecting tank upper end is certainly
It is dynamic to open, the extra gas of tank interior is drained into environment.
Preferably, the fountain packed bed heat reservoir closes first control valve, second in the heat release stage
Control valve, third control valve door, the 7th control valve, the tenth control valve open the 6th control valve, the 8th control valve
Door, the 5th control valve, the low temperature liquid heat transfer medium in second fluid reservoir are passed into the fountain packed bed accumulation of heat
In device, heat exchange occurs with the solid heat storage medium on packed bed, is changed into height after the heat absorption heating of low temperature liquid heat transfer medium
Warm liquid heat transfer medium is flowed into the high temperature fluid reservoir later, enters steam generation under the action of the high-temperature pump
The hot side of device transfers heat to the working medium in steam generating system；At the fountain packed bed regenerative apparatus leakage fluid dram
After liquid heat transfer medium temperature reaches setting value, it is considered as the completion of heat release process, closes and fountain packed bed regenerative apparatus later
Two control valves of upper and lower ends, and simultaneously close off the piping connection valve of packed bed and heat energy output end.
Further, when the heat reservoir does not work, it is ensured that valve on the energy-storage system internal pipeline is all in opening
Logical state, and the relief valve of fluid reservoir upper end is opened, the pressure inside whole system is drained to atmospheric pressure.
The present invention also provides the fountain packed bed heat reservoirs of the third structure type.The fountain packed bed heat accumulation
System, including the storage of industrial high temperature furnace, chimney, fountain packed bed regenerative apparatus, heat exchanger, steam generator, condenser, low temperature
Flow container, high temperature fluid reservoir, liquid collecting tank, pressure stabilizing and filter element, heat source user terminal, which is characterized in that
The waste heat exhanst gas outlet of the industrial high temperature furnace is passed through the chimney after the hot side of the heat exchanger,
The cold side outlet of the heat exchanger is equipped with third control valve door, is equipped with the 7th control valve at cold side import,
The cold side outlet port of the heat exchanger after the hot side of the steam generator with the first liquid of the low-temperature liquid storage tank
Body inlet communication, the cold side of the steam generator are connected to the heat source user terminal,
The hot side inlet position of the steam generator is equipped with the 5th control valve, is equipped with the 9th control valve at hot side outlet
Door, and the connecting pipeline between five control valve of third control valve Men Yu is equipped with the 4th control valve,
The liquid outlet of the low-temperature liquid storage tank is divided into two-way, is connected to all the way with the cold side import of the heat exchanger, another
The 6th control valve of Lu Jingyi is connected to the inlet of the fountain packed bed regenerative apparatus, the fountain packed bed accumulation of heat
The 11st control valve is set at the inlet of device,
The top of the fountain packed bed regenerative apparatus also pass through one with valvular connecting pipeline and the pressure stabilizing and
Filter element connection；The leakage fluid dram of the fountain packed bed regenerative apparatus bottom is divided into two-way, all the way through 1 the 12nd control
The second liquid inlet communication of valve and the low-temperature liquid storage tank, another way through one the 8th control valve and the high temperature fluid reservoir into
Mouth connection, the outlet of the high temperature fluid reservoir are connected to the hot side import of the steam generator, the top of the low-temperature liquid storage tank
Portion is additionally provided with a gas vent, the gas vent successively through a relief valve, condenser hot side after connect with the import of liquid collecting tank
It is logical, relief valve also is provided on liquid collecting tank.
Preferably, the fountain packed bed heat reservoir further includes a regenerator, the liquid discharge of the low-temperature liquid storage tank
The another way of mouth connects through the inlet of the 6th control valve, the cold side of the regenerator and the fountain packed bed regenerative apparatus
It is logical, the gas vent at the top of the low-temperature liquid storage tank successively after relief valve, the hot side of regenerator, the hot side of condenser with collection
The inlet communication of flow container.
Preferably, the smoke-exhaust pipeline of the industrial high temperature furnace is equipped with aspiration pump.
Preferably, the heat source user terminal be a steam generating system, the steam generating system include steam engine,
Condenser, liquid collecting tank, and the cold side of the steam engine, condenser, liquid collecting tank, steam generator is sequentially communicated, and forms one
Steam-electric power circulation, the steam engine drive generator work.
Further, a circulating pump is arranged in the exit of the liquid collecting tank.
Preferably, a cryogenic pump, the exit of the high temperature fluid reservoir is arranged in the liquid outlet of the low-temperature liquid storage tank
One high-temperature pump is set.
Preferably, the fountain packed bed regenerative apparatus includes a closed tank, is equipped with spray in the closed tank
The top of the packed bed is arranged in head and packed bed, the spray head, and the packed bed is equipped with solid-state heat-storing material, described
The import of spray head is connected to the inlet at the top of the fountain packed bed regenerative apparatus.
The present invention also provides the operation methods of the fountain packed bed heat reservoir of the third structure type, when described
Fountain packed bed heat reservoir opens the 7th control valve, third control valve door, the 11st control at the heat accumulation stage
The 12nd control valve of valve, the 4th control valve, the 5th control valve, the 9th control valve, in the low-temperature liquid storage tank
Liquid heat transfer medium is heated to be high-temperature heat-transfer medium behind the cold side of the heat exchanger, is divided into two-way later, all the way directly into
Enter into the steam generator, to the heat source user terminal heat supply；Another way enters the fountain packed bed regenerative apparatus,
And heat exchange is carried out with the solid-state heat storage medium in packed bed, heat is transmitted to after solid-state heat storage medium through packed bed bottom
Leakage fluid dram flows out to the low-temperature liquid storage tank, when heat-transfer fluid temperature reaches setting value when the outlet of packed bed lower end, is considered as heat accumulation
Process is completed, and two valves being connected with packed bed upper and lower ends are closed.
Further, in heat-accumulating process, when the liquid heat transfer fluid temperature inside heat reservoir increases, internal system
Pressure is also with raising, after pressure is higher than setting value, carries out row pressure, discharge by the pressure relief pipe on the low-temperature liquid storage tank
High-temperature gas by regenerator, into condenser it is cooling after flow into the liquid collecting tank and be collected.
Further, after the pressure in liquid collecting tank reaches setting pressure, the relief valve on the liquid collecting tank is automatically turned on,
The extra gas of tank interior is drained into environment.
Preferably, the fountain packed bed heat reservoir closes the third control valve door, the 7th in the heat release stage
Control valve, the 4th control valve, the 12nd control valve open the 6th control valve, the 8th control valve, the 5th control valve
Door, the 9th control valve, while guaranteeing that the aperture of the gas regulation valve on voltage-stabilizing system main line is in setting pressure.Institute
The low temperature liquid heat-transfer fluid in low-temperature liquid storage tank is stated to be flowed into after regenerator in fountain packed bed regenerative apparatus, and with
Heat exchange occurs for solid heat storage medium therein, is changed into high-temperature liquid state heat transfer after the heat absorption heating of low temperature liquid heat transfer medium and is situated between
Matter is flowed into later in high temperature fluid reservoir, is entered under the action of high-temperature pump and is transferred heat to heat source in steam generator
User terminal.
Further, after the heat-transfer fluid temperature in fountain packed bed regenerative apparatus lower end exit reaches setting value,
It is considered as the completion of heat release process, closes the valve of packed bed upper and lower ends, and simultaneously closes off the pipeline of packed bed and heat energy output end
Connecting valve.
Further, when the heat reservoir does not work, it is ensured that valve on the energy-storage system internal pipeline is all in opening
Logical state, and the relief valve of fluid reservoir upper end is opened, the pressure inside whole system is drained to atmospheric pressure.
Fountain packed bed heat reservoir of the invention and operation method are a kind of by energy such as electric energy, thermal energy, heat chemistrys
It is stored in by way of directly or indirectly exchanging heat in the packed bed in heat reservoir in the form of thermal energy when relatively sufficient,
Again releasing thermal energy when needing is converted to electric energy or thermal energy directly to the heat reservoir of user.Its working principle:
In heat source feed end thermal energy abundance, use fluid liquid for heat transfer medium, the liquid heat transfer in low-temperature liquid storage tank
Medium passes through heat source feed end, and heat-transfer fluid is heated to set temperature, is supplied to heat source user terminal all the way, and another way enters spray
Leaching formula packed bed heat-storing device carries out heat exchange with solid heat storage medium therein, the energy transmission that heat-transfer fluid carries is given
Heat storage medium simultaneously stores, and the heat-transfer fluid after temperature reduces flows out from packed bed bottom and flows into low-temperature liquid storage tank.
When needing heat, the low temperature heat transfer fluid in low-temperature liquid storage tank is provided to fountain packed bed heat-storing device
In, heat exchange is carried out with the high-temp solid heat storage medium inside packed bed, thermal energy is taken out of to and flowed into supreme temperature fluid reservoir, is passed through
High-temperature pump, which exports, gives heat source user terminal.
During accumulation of heat and heat release, it will be arranged by the pressure relief device being arranged in system when pressure is higher than setting
Pressure, the high-temperature gas of discharge can pass through or not by regenerator, flow into accumulator tank after cooling down into condenser and be collected.
In fountain packed bed heat reservoir of the invention, regenerative apparatus is pressure-bearing thermal-insulating type packed bed；Packed bed is interior
Heat preserving type/or external thermal insulation formula；Packed bed tank body can be the connection/of non-detachable welding or detachable flanged joint.Spray head
It is detachable/or fixed with the connection type at the top of packed bed.
Pressure release circuit in fountain packed bed heat reservoir of the invention, purpose is for buffering internal pressure in heat reservoir
Pressure rise caused by power pressure stabilizing volume expansion due to caused by expanding with heat and contract with cold.
In fountain packed bed heat reservoir of the invention, the liquid collecting tank includes at least one temperature-detecting device, extremely
Few a pressure-detecting device, at least one safety valve, at least one pouring orifice, at least one sewage draining exit.
In fountain packed bed heat reservoir of the invention, the regenerator is plank frame/or plate-fin structure/or pipe
The combination of the one or two of shell type structure/or sped structure or more；The regenerator side is high pressure gas and liquid
The mixture of heat transfer medium, side are the high pressure low temperature liquid heat transfer medium of reflux after the completion of heat-accumulating process/or heat release process；Its
Heat exchange mode can be fair current/or adverse current/or both all include mixed flow.
In fountain packed bed heat reservoir of the invention, the condenser is plank frame/or plate-fin structure/or pipe
The combination of the one or two of shell type structure/or sped structure or more；The regenerator side is high pressure gas and liquid
The mixture of heat transfer medium, side are cryogen or gas；Its heat exchange mode can be fair current/or adverse current/or both all wrap
The mixed flow included.
In fountain packed bed heat reservoir of the invention, the heat exchanger/steam generator is plank frame/or plate wing
The combination of formula structure/or the one or two of tube shell type structure/or sped structure or more；Its heat exchange mode of the heat exchanger
Can be fair current/or adverse current/or both all include mixed flow.
Preferably, the heat source accommodation device can be with solar energy heat collector/or power plant's high-temperature flue gas/or steel mill high temperature
Flue gas etc. can heat the device or system of liquid heat transfer medium.
In fountain packed bed heat reservoir of the invention, the pressure such as the packed bed regenerative apparatus, fluid reservoir, liquid collecting tank
For container under interior heat-retaining condition, the material of pressure vessel inner casing is that the metal materials or ceramics etc. such as stainless steel, aluminium, titanium are heat-resisting resistance to
The nonmetallic materials of corrosion, pressure vessel enclosure material is metal material, such as stainless steel, carbon steel, aluminium alloy or inorganic non-metallic
Material such as one of ceramics, high temperature concrete or at least two combination, fills thermal insulation material between inner casing and shell；It is described
Under outer heat-retaining condition, pressure vessel enclosure material is metal material, such as stainless for packed bed regenerative apparatus, fluid reservoir, liquid collecting tank
Steel, carbon steel, aluminium alloy or inorganic non-metallic material such as one of ceramics, high temperature concrete or at least two combination.
In fountain packed bed heat reservoir of the invention, regenerator, condenser and liquid collecting tank in the system
Shell is the metal material of high pressure resistant corrosion-and high-temp-resistant, such as such as stainless steel, carbon steel, aluminium alloy or inorganic non-metallic material
Ceramics, one of high temperature concrete or at least two combination.
In fountain packed bed heat reservoir of the invention, the pressure stabilizing gas in the heat reservoir is air, nitrogen, helium
Gas, argon gas etc. it is one of or at least two mixing.Liquid heat transfer medium is conduction oil, water, methanol, ethyl alcohol, liquid gold
One of or at least two mixing such as belong to；The solid heat storage medium be graininess or cellular, be rock, ore,
Slag, concrete, refractory brick, Ceramic Balls, metal, phase-change material of encapsulation etc. it is one of or at least two mixture.
In fountain packed bed heat reservoir of the invention, fountain packed bed regenerative apparatus, fluid reservoir, liquid collecting tank are all
Cylindrical body or the corrosion resistant sealed pressure vessel of sphere, high-temperature-resistant high-pressure-resistant.
Compared with the existing technology, fountain packed bed heat reservoir and operation method of the invention, the heat for high temperature
It can field of storage.The system is being filled the thermal energy storage that heat source feed end provides by liquid heat transfer medium in the heat accumulation stage
In solid heat storage medium in bed；With the hot stage, the thermal energy in solid material is released and to generate electricity or heat.This
The fountain packed bed heat reservoir of invention and operation method have heat storage efficiency height, heat quality height, Applicable temperature field width, at
The advantages that this is low, safe operation, especially suitable in high temperature solar energy thermal-power-generating and industrial high temperature field of waste heat utilization, simultaneously
The complementation of using energy source step can also be carried out with extensive physics energy storage, such as compressed-air energy-storage system, improve the utilization of the energy
Efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 3.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
Embodiment 1:
Fig. 1 is the structural schematic diagram of fountain packed bed heat reservoir embodiment 1 of the invention, wherein solar energy heating
The heat-transfer fluid and fountain packed bed heat-storing device of device are direct contact heat transfers.As shown in Figure 1, fountain of the invention is filled out
A heat reservoir is filled, mainly includes solar thermal collector 101, two parallel inside holding type fountain packed bed regenerative apparatus
105, heat exchanger 107, regenerator 110, condenser 111, low-temperature liquid storage tank 103, high temperature fluid reservoir 104, high-temperature pump 106, low temperature
Pump 102, liquid collecting tank 112, voltage-stabilizing system and filter 109, resident's heating network 108.
The outlet of solar thermal collector 101 is connected to by a main line with the hot side import of heat exchanger 107, heat exchanger 107
Hot side outlet be connected to the first liquid-inlet of low-temperature liquid storage tank 103, the cold side of heat exchanger 107 is connected to resident's heating network
108.The liquid outlet of low-temperature liquid storage tank 103 successively through cryogenic pump 102, regenerator 110 cold side after with solar thermal collector 101
Inlet communication, the outlet of solar thermal collector 101 also passes through bypass conduit and each fountain packed bed regenerative apparatus 105
The inlet at top is connected to, and the leakage fluid dram of each 105 bottom of fountain packed bed regenerative apparatus is stored up through a confluence pipeline and low temperature
The second liquid inlet communication of flow container 103, and second liquid entrance be equipped with control valve 8, confluence pipeline also with high temperature liquid storage
The inlet communication of tank 104, and the entrance of high temperature fluid reservoir 104 is equipped with control valve 7, the outlet of high temperature fluid reservoir 104 is through height
Temperature pump 106 is connected to the hot side import of heat exchanger 107, and the exit of high-temperature pump 106 is equipped with control valve 6.Low-temperature liquid storage tank
103 tops are additionally provided with a gas vent, and gas outlet is equipped with control valve 9, heat of the gas vent successively through regenerator 110
Side, condenser 111 hot side after inlet communication with liquid collecting tank 112.The outlet of solar thermal collector 101 and cryogenic pump 102
Be additionally provided with a connecting pipe road between outlet, connecting pipeline is equipped with control valve 10, the entrance of solar thermal collector 101 and
Exit is equipped with control valve 1,2.
In above system, fountain packed bed heat-storing device 105 includes a closed tank, is equipped with spray in the closed tank
Head and packed bed are drenched, the top of the closed tank is arranged in the spray head, and the filling is arranged in the lower section of the spray head
Bed, the packed bed is interior to be equipped with several layers cell channel, and the solid-state heat-storing material is arranged in each cell channel.
The import of the spray head is connected to the inlet of the fountain packed bed regenerative apparatus 105, and the spray head is to will be into
Liquid mist is melted into fine drop or several tiny fluid columns, and sprays onto the solid-state heat-storing material on the packed bed, make feed liquor with
Solid-state heat-storing material carries out heat exchange, and the thermal energy storage in feed liquor is stored into solid-state heat-storing material or by solid-state heat-storing material
Heat be discharged into feed liquor, to complete accumulation of heat or heat release.
The main operational principle of fountain packed bed heat-storing device 105 is: by the spray head being placed at the top of packed bed
Liquid heat transfer medium in system is atomized into fine drop or several tiny fluid columns, then with packed bed internal element lattice channel
Interior solid heat storage material carries out heat exchange, and the thermal energy storage in liquid heat transfer medium is got up or stores solid-state heat-storing material
Heat release, to complete the accumulation of heat/of the fountain packed bed heat reservoir or the major function of heat release.In advance, will
Solid heat storage material is packed into inside the fountain packed bed with cell channel, and is sealed.Closing system discharge valve, benefit
Degassing processing is carried out to fountain packed bed heat reservoir with stable-pressure device, the air of internal system is drained.Liquid is passed again
Thermal medium is injected into heat reservoir by the pouring orifice of fluid reservoir, and injection rate is to close exhaust valve after setting value.Adjust pressure stabilizing system
Gas flow regulating valve door in system carries out heat reservoir to be forced into setting operating pressure.Reach setting in system pressure
After pressure, it is ensured that the valve that system is connected with atmosphere is in close state, and the valve on other all internal system pipelines is all located
In opening state.
Fountain packed bed heat reservoir of the invention, including two kinds of operating modes of heat accumulation and heat release.
At the heat accumulation stage, valve 1,2,3,8,9 is opened, uses fluid liquid for heat transfer medium, it will by cryogenic pump 102
Liquid heat transfer medium in low-temperature liquid storage tank 103 is driven into solar heat collector 101, and heat-transfer fluid is heated to set temperature,
When heat source feed end thermal energy abundance, i.e., meet high temperature heat transfer fluid flow directly into heat exchanger 107 to resident's heating pipe network supply
While, from bypass line enter fountain packed bed heat-storing device 105, be heated after liquid heat transfer medium pass through packed bed
Liquid heat transfer medium is atomized or branches to several water columns by the spray equipment on top, and with the solid-state heat storage medium in packed bed
Heat exchange is carried out, the high-grade thermal energy of liquid heat transfer medium is converted to the thermal energy of solid-state heat storage medium to store, it will be hot
It measures the low temperature liquid heat transfer medium after being transmitted to heat storage medium to flow out by the leakage fluid dram of 105 bottom of packed bed, when packed bed lower end
When outlet heat-transfer fluid temperature reaches setting value, it is considered as the completion of heat accumulation process, closes two to be connected with packed bed upper and lower ends
A valve.In the process, due to the liquid heat transfer medium of internal system and pressure stabilizing gas can due to the raising of temperature itself
Volume can be expanded, the pressure of system can be stepped up.After pressure rise to setting pressure, fluid reservoir 103 and liquid collecting
Relief valve between tank 112 on pipeline automatically turns on, and high temperature and high pressure gas is stored in collection by regenerator 110, condenser 111
In flow container 112, after the pressure in liquid collecting tank 112 reaches setting pressure, the relief valve of 112 upper end of liquid collecting tank is automatically turned on, will
The extra gas of tank interior drains into environment.
During heat release, closing valve 1,2,3,8, opening valve 10,7,6, while guaranteeing on voltage-stabilizing system main line
Gas regulation valve aperture be in setting pressure on.Low temperature liquid heat-transfer fluid in fluid reservoir 103 passes through cryogenic pump 102
It is flowed into packed bed 105, by end entrance on packed bed and by being evenly distributed on solid heat storage in packed bed after spray head
Above medium, and it is flowed into each unit lattice channel and heat exchange occurs with heat storage medium, solid heat storage medium temperature declines at this time,
Liquid heat transfer fluid temperature increases, and the high-grade thermal energy of solid heat storage material is converted into the high-grade thermal energy of liquid heat transfer fluid,
Heat-transfer fluid brings out the high temperature heat being stored in inside heat storage medium and is flowed into high temperature fluid reservoir 104, passes through high-temperature pump
It enters in heat exchanger 107 and is transferred heat in resident's heating pipe network under the action of 106.When 105 lower end exit of packed bed
Heat-transfer fluid temperature reach setting value after, be considered as the completion of heat release process, close be connected with packed bed upper and lower ends two
Valve, and simultaneously close off the piping connection valve of packed bed and heat energy output end.During heat release, inside heat reservoir
When liquid heat transfer fluid temperature increases, internal system pressure is also with raising, when pressure will be by setting higher than setting in system
The pressure relief device set carries out row pressure, and the high-temperature gas of discharge flows into liquid collecting after cooling down into condenser 111 by regenerator 110
Tank is collected 112.
When the heat reservoir does not work, it is ensured that the valve on the energy-storage system internal pipeline all in opening state, and
The relief valve for opening fluid reservoir upper end, the pressure inside whole system is drained to atmospheric pressure.
Embodiment 2:
As shown in Fig. 2, being fountain packed bed heat reservoir embodiment 2 of the invention, this system mainly includes solar energy
Heat collector 201, fountain packed bed regenerative apparatus 207, heat exchanger 206, steam generator 208, regenerator 216, condenser
217, the first low-temperature liquid storage tank 203, the second low-temperature liquid storage tank 204, high temperature fluid reservoir 215, high-temperature pump 214, cryogenic pump 202,
205, liquid collecting tank 218, pressure stabilizing and filter element 219, steam generating system.Wherein solar thermal collection system and fountain packed bed
Regenerative apparatus is indirect type heat exchange, and centre carries out hot transmitting by heat exchanger 206.The knot of fountain packed bed heat-storing device 207
Structure and its working principle are identical as the fountain packed bed heat-storing device of embodiment 1.
The first control valve 21 is arranged in the entrance of solar thermal collector 201, and the second control valve 22 is arranged in exit；Too
The outlet of positive energy heat collector 201 is divided into two-way, all the way the liquid after the hot side of heat exchanger 206 with the first low-temperature liquid storage tank 203
Inlet communication, another way are connected to after the hot side of steam generator 208 with the liquid-inlet of the first low-temperature liquid storage tank 203, and are steamed
The hot side outlet pipeline of vapour generator 208 is equipped with the tenth control valve 30；The one steam-electric power system of cold side of steam generator 208
System connection, steam generating system includes steam engine 209, condenser 211, liquid collecting tank 212, and steam engine 209, condensation
Device 211, liquid collecting tank 212, steam generator 208 cold side be sequentially communicated, formed a steam-electric power circulation；Liquid collecting tank 212 goes out
One circulating pump 213 is set at mouthful；The liquid outlet of first low-temperature liquid storage tank 203 behind the cold side of regenerator 216 with solar energy collection
One first cryogenic pump 202 is arranged in the liquid outlet of the inlet communication of hot device 201, the first low-temperature liquid storage tank 203.Low-temperature liquid storage tank
203 tops are additionally provided with a gas vent, and gas vent is successively through a relief valve, the hot side of regenerator 216, the warm of condenser 217
With the inlet communication of liquid collecting tank 218 behind side, relief valve also is provided on liquid collecting tank 218；The cold side outlet setting the of heat exchanger 206
Three control valves 23, the 7th control valve 27 is equipped at cold side import, and the cold side outlet port and fountain packed bed of heat exchanger 206 store
The inlet connection at 207 top of thermal, the leakage fluid dram and the second low-temperature liquid storage tank of 207 bottom of fountain packed bed regenerative apparatus
204 second liquid inlet communication is provided with control at the inlet and leakage fluid dram of fountain packed bed regenerative apparatus 207
The liquid outlet of valve, the second low-temperature liquid storage tank 204 is divided into two-way, is connected to all the way with the cold side import of heat exchanger 206, another way warp
One the 6th control valve 26 is connected to the inlet of fountain packed bed regenerative apparatus 207, the liquid of the second low-temperature liquid storage tank 204
One second cryogenic pump 205, the connection that 207 top of fountain packed bed regenerative apparatus also has valve 11 by one is arranged in exit
Pipeline is connected to a pressure stabilizing and filter element 219；The leakage fluid dram of fountain packed bed regenerative apparatus 207 also with high temperature fluid reservoir
215 inlet communication, and the entrance of high temperature fluid reservoir 215 is equipped with the 8th control valve 28, the outlet point of high temperature fluid reservoir 215
For two-way, it is connected to all the way through one the 4th control valve 24 with the inlet of fountain packed bed regenerative apparatus 207, another way is through one
5th control valve 25 is connected to the hot side import of steam generator 208, and a high-temperature pump is arranged in the exit of high temperature fluid reservoir 215
214。
Fountain packed bed heat reservoir opens the first control valve 21, the second control valve 22, the at the heat accumulation stage
Three control valves 23, the 7th control valve 27, the 8th control valve 28, the tenth control valve 30 use fluid liquid for heat transfer
Medium says that in the first low-temperature liquid storage tank 203 liquid heat transfer medium is driven into solar heat collector 201 by the first cryogenic pump 202,
Heat-transfer fluid is heated to set temperature, in heat source feed end thermal energy abundance, i.e., is flowed directly into meeting high temperature heat transfer fluid
While steam generator 208 is to the system requirements of steam-electric power, enter heat exchanger 206 all the way, with fountain packed bed heat accumulation
Device exchanges heat, and the liquid heat transfer medium in first low-temperature liquid storage tank 203 is squeezed into heat exchange by the first cryogenic pump 202 at this time
After device 206 is heated to set temperature, liquid heat transfer fluid by the spray head on packed bed top, by liquid heat transfer medium atomization or
Several water columns are branched to, and carry out heat exchange with the solid-state heat storage medium in packed bed, by the high-grade heat of liquid heat transfer medium
The thermal energy of solid-state heat storage medium can be converted to store, the low temperature liquid heat transfer medium after heat to be transmitted to heat storage medium leads to
The leakage fluid dram for crossing packed bed bottom flows out to the second low-temperature liquid storage tank 104, and when the outlet of packed bed lower end, heat-transfer fluid temperature reaches
When setting value, it is considered as the completion of heat accumulation process, closes two control valves being connected with packed bed upper and lower ends.
In heat-accumulating process, when liquid heat transfer fluid temperature inside heat reservoir increases, internal system pressure also with
Raising, row pressure will be carried out by the relief valve being arranged in system when pressure is higher than setting, the high-temperature gas of discharge passes through back
Hot device 216 flows into liquid collecting tank 218 after cooling down into condenser 2171 and is collected, when the pressure in liquid collecting tank reaches setting pressure
After power, the relief valve of liquid collecting tank upper end is automatically turned on, and the extra gas of tank interior is drained into environment.
Fountain packed bed heat reservoir closes the first control valve 21, the second control valve 22, the in the heat release stage
Three control valves 23, the 7th control valve 27, the tenth control valve 30, open the 6th control valve 26, the 8th control valve 28,
5th control valve 25, while guaranteeing that the aperture of the gas regulation valve on voltage-stabilizing system main line is in setting pressure.The
Low temperature liquid heat-transfer fluid in two fluid reservoirs 204 is flowed into fountain packed bed regenerative apparatus 207 by the second cryogenic pump 205
It is interior, heat exchange occurs with the heat storage medium on packed bed, solid heat storage medium temperature declines at this time, liquid heat transfer fluid temperature liter
Height, the high-grade thermal energy of solid heat storage material are converted into the high-grade thermal energy of liquid heat transfer fluid, and heat-transfer fluid handle is stored in storage
High temperature heat inside thermal medium, which is brought out, to be flowed into high temperature fluid reservoir 215, by entering steaming under the action of high-temperature pump 214
The working medium in steam generating system is transferred heat in vapour generator 208, and steam engine 209 is driven to generate electricity.Work as spray
After the heat-transfer fluid temperature in 207 lower end exit of formula packed bed regenerative apparatus reaches setting value, it is considered as the completion of heat release process, closes
With two control valves of fountain packed bed regenerative apparatus upper and lower ends, and the pipeline of packed bed and heat energy output end is simultaneously closed off
Connecting valve.
When the heat reservoir does not work, it is ensured that the valve on the energy-storage system internal pipeline all in opening state, and
The relief valve for opening fluid reservoir upper end, the pressure inside whole system is drained to atmospheric pressure.
Embodiment 3:
As shown in figure 3, being fountain packed bed heat reservoir embodiment 3 of the invention, this system mainly includes industrial high
Warm furnace 301, aspiration pump 303, fountain packed bed regenerative apparatus 307, heat exchanger 306, steam generator 308, returns at chimney 302
Hot device 316, condenser 317, low-temperature liquid storage tank 304, high temperature fluid reservoir 315, high-temperature pump 314, cryogenic pump 305, liquid collecting tank 318,
Pressure stabilizing and filter element 319, steam generating system 308.Wherein industrial high temperature furnace waste heat flue gas system and fountain packed bed store
Thermal is indirect type heat exchange, and centre carries out hot transmitting by heat exchanger 306.The structure of fountain packed bed heat-storing device 307
And its working principle is identical as the fountain packed bed heat-storing device of embodiment 1,2.
The waste heat exhanst gas outlet of industrial high temperature furnace 301 is passed through chimney 302, industrial high temperature furnace after the hot side of heat exchanger 306
301 smoke-exhaust pipeline is equipped with aspiration pump 303.The cold side outlet of heat exchanger 306 is equipped with third control valve door 33, cold side import
Place be equipped with the 7th control valve 37, the cold side outlet port of heat exchanger 306 after the hot side of steam generator 308 with low-temperature liquid storage tank
304 the first liquid-inlet connection, the cold side of steam generator 308 are connected to a steam generating system, steam generating system packet
Include steam engine 309, condenser 311, liquid collecting tank 312, and steam engine 309, condenser 311, liquid collecting tank 312, steam
The cold side of generator 308 is sequentially communicated, and forms steam-electric power circulation, and steam engine 309 drives generator work, and will be electric
Power is delivered to power grid 310.A circulating pump 313 is arranged in the exit of liquid collecting tank 312.
The hot side inlet position of steam generator 308 is equipped with the 5th control valve 35, is equipped with the 9th control valve at hot side outlet
Door 39, and the connecting pipeline between third control valve door 33 and the 5th control valve 35 is equipped with the 4th control valve 34, low temperature
The liquid outlet of fluid reservoir 304 is divided into two-way, is connected to all the way with the cold side import of heat exchanger 306, and another way is through one the 6th control
Valve 36, regenerator 316 cold side be connected to the inlet of fountain packed bed regenerative apparatus 307, the liquid of low-temperature liquid storage tank 304
A cryogenic pump 305 is arranged in body exit.The top of fountain packed bed regenerative apparatus 307 also passes through a connection for having valve 40
Pipeline is connected to a pressure stabilizing and filter element 319；The leakage fluid dram of 307 bottom of fountain packed bed regenerative apparatus is divided into two-way, and one
The second liquid inlet communication of Lu Jingyi the 12nd control valve 42 and low-temperature liquid storage tank 304, another way is through one the 8th control valve 38
Outlet with the inlet communication of high temperature fluid reservoir 315, high temperature fluid reservoir 315 is connected to the hot side import of steam generator 308, high
A high-temperature pump 314 is arranged in the exit of warm fluid reservoir 315.The top of low-temperature liquid storage tank 304 is additionally provided with a gas vent, and gas goes out
The mouth successively inlet communication after a relief valve, the hot side of regenerator 316, the hot side of condenser 317 with liquid collecting tank 318, liquid collecting
Relief valve also is provided on tank 318.
The fountain packed bed heat reservoir of the present embodiment opens valve 37,33,41,34,35,39 at the heat accumulation stage,
It uses fluid liquid for heat transfer medium, the liquid heat transfer medium in low-temperature liquid storage tank 304 is driven by heat exchange by cryogenic pump 305
After device 306 is heated to set temperature, it is divided into two-way, is entered directly into steam generator 308 all the way, steam-electric power system is heated
Working medium driving steam engine 309 in system generates electricity；Another way passes through the spray on 307 top of fountain packed bed regenerative apparatus
Liquid heat transfer medium is atomized or is branched to several water columns, and carries out heat exchange with the solid-state heat storage medium in packed bed by head, will
The high-grade thermal energy of liquid heat transfer medium is converted to the thermal energy of solid-state heat storage medium to store, and heat is transmitted to heat storage medium
Low temperature liquid heat transfer medium afterwards flows out to low-temperature liquid storage tank 304 by the leakage fluid dram of packed bed bottom, brings out when under packed bed
When oral instructions hot fluid temperature reaches setting value, it is considered as the completion of heat accumulation process, closes two to be connected with packed bed upper and lower ends
Valve.In heat-accumulating process, when the liquid heat transfer fluid temperature inside heat reservoir increases, internal system pressure is also with liter
Height carries out row pressure by the pressure relief pipe on low-temperature liquid storage tank 304, the high-temperature gas of discharge is logical after pressure is higher than setting value
Regenerator 316 is crossed, liquid collecting tank 318 is flowed into after cooling down into condenser 317 and is collected.When the pressure in liquid collecting tank 318 reaches
After setting pressure, the relief valve of 318 upper end of liquid collecting tank is automatically turned on, and the extra gas of tank interior is drained into environment.
In the heat release stage, valve 33,37,34,42 is closed, opens valve 36,38,35,39, while guaranteeing voltage-stabilizing system
The aperture of gas regulation valve on main line is in setting pressure.Low temperature liquid heat-transfer fluid in low-temperature liquid storage tank 304
It is flowed into after regenerator 316 in fountain packed bed regenerative apparatus 307 by cryogenic pump 305, by uniform after spray head
It is distributed in packed bed above solid heat storage medium, and heat exchange occurs with solid heat storage medium, at this time solid heat storage medium temperature
Degree decline, liquid heat transfer fluid temperature increase, and the high-grade thermal energy of solid heat storage material is converted into the Gao Pin of liquid heat transfer fluid
Position thermal energy, heat-transfer fluid brings out the high temperature heat being stored in inside heat storage medium and is flowed into high temperature fluid reservoir 315, in height
The working medium transferred heat in steam generating system in steam generator 308 is entered under the action of temperature pump 314, and drives steaming
Vapour engine 309 generates electricity.After the heat-transfer fluid temperature in 307 lower end exit of packed bed reaches setting value, it is considered as heat release process
It completes, closes two valves being connected with packed bed upper and lower ends, and simultaneously close off the pipeline of packed bed and heat energy output end
Connecting valve.
When the heat reservoir does not work, it is ensured that the valve on the energy-storage system internal pipeline all in opening state, and
The relief valve for opening fluid reservoir upper end, the pressure inside whole system is drained to atmospheric pressure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of fountain packed bed heat reservoir, including fountain packed bed regenerative apparatus, low-temperature liquid storage tank, high temperature liquid storage
Tank, heat exchanger, heat source feed end, heat source user terminal, condenser and liquid collecting tank, which is characterized in that
The entrance of the heat source feed end is equipped with the first control valve, and exit is equipped with the second control valve,
The outlet of the heat source feed end is connected to by a main line with the hot side import of the heat exchanger, is set on the main line
There is third control valve door,
The hot side outlet of the heat exchanger is connected to the first liquid-inlet of the low-temperature liquid storage tank, and the cold side of the heat exchanger connects
Lead to the heat source user terminal,
The inlet communication of the liquid outlet of the low-temperature liquid storage tank and the heat source feed end,
The outlet of the heat source feed end also passes through the feed liquor at the top of bypass conduit and the fountain packed bed regenerative apparatus
Mouth connection,
The leakage fluid dram of the fountain packed bed regenerative apparatus bottom is classified two-way, all the way through one the 8th control valve with it is described low
The second liquid inlet communication of warm fluid reservoir, inlet communication of the another way through one the 7th control valve and the high temperature fluid reservoir,
Inlet at the top of the fountain packed bed regenerative apparatus and it is equipped with control valve at the leakage fluid dram of bottom,
The outlet of the high temperature fluid reservoir is connected to the hot side import of the heat exchanger, and connecting pipeline between the two is equipped with
6th control valve,
It is additionally provided with a gas vent at the top of the low-temperature liquid storage tank, the gas vent is successively through one first relief valve, condenser
Hot side after inlet communication with the liquid collecting tank, the liquid collecting tank is equipped with the second relief valve, when the low-temperature liquid storage tank and/
Or after the pressure rise in liquid collecting tank to setting pressure, each relief valve is automatically turned on,
It is additionally provided with a connecting pipe road between the outlet and the outlet of the low-temperature liquid storage tank of the heat source feed end, and in the company
Siphunculus road is equipped with the tenth control valve.
2. the fountain packed bed heat reservoir according to the claims, which is characterized in that the heat source feed end is
Solar energy heat collector, power plant's high-temperature flue gas or steel mill high-temperature flue gas etc. can heat the device or system of liquid heat transfer medium.
3. the fountain packed bed heat reservoir according to the claims, which is characterized in that the low-temperature liquid storage tank
Liquid outlet is equipped with a cryogenic pump；The exit of the high temperature fluid reservoir is equipped with a high-temperature pump.
4. the fountain packed bed heat reservoir according to the claims, which is characterized in that the fountain packed bed
The quantity of regenerative apparatus be it is two or more, arrangement mode is in parallel, series connection or both combination.
5. fountain packed bed heat reservoir according to any one of claims 1 to 4, which is characterized in that the fountain
Packed bed regenerative apparatus includes a closed tank, and spray head and packed bed, the spray head setting are equipped in the closed tank
At the top of the packed bed, the packed bed is equipped with solid-state heat-storing material, the import of the spray head and the fountain
The inlet of packed bed regenerative apparatus is connected to, the spray head feed liquor is atomized into fine drop or several tiny fluid columns,
And spray onto the solid-state heat-storing material on the packed bed, so that feed liquor and solid-state heat-storing material is carried out heat exchange, it will be in feed liquor
Thermal energy storage be discharged into feed liquor into solid-state heat-storing material or by the heat that solid-state heat-storing material stores, to complete accumulation of heat
Or heat release.
6. fountain packed bed heat reservoir according to claim 5, which is characterized in that be equipped in the packed bed several
The positive arrangement of layer or staggered cell channel, the solid-state heat-storing material are arranged in each cell channel.
7. fountain packed bed heat reservoir according to claim 5, which is characterized in that the top of the closed tank is also
It is connected to by a connecting pipe Lu Yuyi pressure stabilizing and filter element, and is equipped with the 4th control valve on the connecting pipeline.
8. fountain packed bed heat reservoir according to claim 1, which is characterized in that be additionally provided in the closed tank
Several temperature and pressure-detecting device.
9. fountain packed bed heat reservoir according to claim 1, which is characterized in that the fountain packed bed heat accumulation
System further includes a regenerator, and the liquid outlet of the low-temperature liquid storage tank is supplied behind the cold side of the regenerator with the heat source
The inlet communication at end, the gas vent at the top of the low-temperature liquid storage tank is successively through the first relief valve, the hot side of regenerator, condenser
Hot side after inlet communication with the liquid collecting tank.
10. a kind of operation method of the described in any item fountain packed bed heat reservoirs of claim 1 to 9, which is characterized in that
The fountain packed bed heat reservoir includes two kinds of operating modes of heat accumulation and heat release.
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