CN108444326A - A kind of water body soil coupling heat storage and its application method - Google Patents
A kind of water body soil coupling heat storage and its application method Download PDFInfo
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- CN108444326A CN108444326A CN201810218257.2A CN201810218257A CN108444326A CN 108444326 A CN108444326 A CN 108444326A CN 201810218257 A CN201810218257 A CN 201810218257A CN 108444326 A CN108444326 A CN 108444326A
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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
- F28D20/0052—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using the ground body or aquifers as heat storage medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D20/0043—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material specially adapted for long-term heat storage; Underground tanks; Floating reservoirs; Pools; Ponds
-
- 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
Abstract
The present invention relates to a kind of water body soil to couple heat storage, on the coupling heat storage water level located underground, including accumulation of heat water body and soil source heat storage, soil source heat storage is located at the bottom surrounding of accumulation of heat water body, setting floating insulation cover at the top of accumulation of heat water body, it is provided with heat conduction layer between accumulation of heat water body and soil source heat storage, different inlet and outlet are provided on accumulation of heat water body, soil source heat storage is not used in accumulation of heat exothermic process directly, the accumulation of heat of soil source heat storage and exothermic process are all used as buffering by thermal storage tank, can abundant body soil source accumulation of heat accumulation of heat potentiality, in turn ensure higher storage rate of heat release, pass through the heat exchange of accumulation of heat water body and soil source heat storage simultaneously, it realizes across the season storage of heat and utilizes.The present invention also provides the application methods of above-mentioned coupling heat storage to realize different accumulation of heats, heat supply mode by using different inlet and outlet.
Description
Technical field
The present invention relates to the coupling regenerative apparatus of a kind of regenerative apparatus and its application method more particularly to water body soil and make
Use method.
Background technology
Heat storage technology is the key that the regenerative resources such as solar energy, wind energy efficiently utilize.Heat storage technology is by hair for many years
Exhibition, has formed different fields.The research of heat storage technology is concentrated mainly on artificial water tank in the past（Tank）Accumulation of heat, water body gravel store
Heat, soil thermal storage and underground reservoir accumulation of heat etc..The common artificial short-term heat accumulation of water tank domestic at present（About 2-3 days）Skill
Art is only capable of meeting domestic hot-water's needs, is unable to reach long term storage and the utilization in thermal energy across summer two season of winter, cannot meet building and adopt
Warm widespread demand.Large artificial water tank（Tank）, water body or gravel accumulation of heat there is big volume, high heat capacity, good storage/heat release
The advantages that energy, performance stabilization, non-environmental-pollution, but large artificial water tank（Tank）Heat insulating work builds difficulty, and cost is high.Soil
For hold over system generally use underground pipe by thermal energy storage to underground, the advantages of technology is to be not necessarily to artificial thermal storage equipment,
Cost is relatively low, but system heat transfer rate is low, heat loss is high, and required accumulation of heat volume is big, has an impact to ecological environment around, and over the ground
Matter structure has selectivity, is only applicable to rock and saturated water soil environment.Using the natural aqueous layer in underground as heat storage, tool
There is the advantages of low cost, but harsh to geology environmental requirement, phenomena such as filling in well, corrosion and mould easily occurs in system operation.Great Rong
Plash heat storage technology is to store the sensible heat heat storage technology of thermal energy by promoting the temperature in for example artificial pond of water body, has cost
It is low, storage/rate of heat release is fast, heat loss coefficient is low, can the advantages such as across season thermal energy storage, in combination with solar thermal collector, wind-powered electricity generation, light
The multiple renewable energy sources technology such as electricity, heat pump, cogeneration units, fully raising energy utilization rate and regenerative resource account for
Than realizing the target of clean energy resource district heating, having obtained international attention.Big volume pond heat storage technology is derived from Bei Oudan
Wheat, early in nineteen eighty-three Denmark University of Science and Technology（Technical University of Denmark）First in the world is built
500 cubic metres of thermal storage tanks achieve valuable first-hand practical experience.In recent years, big volume pond heat storage technology is gradually walked
To maturation, the thermal storage tank of 5 big volume, and commercialized running have been built up successively in Denmark, heat storage volume 60,
Between 000-200,000 cubic metres（Fan Jianhua, Junpeng Huang, Ola Lie Andersen, Simon Furbo,
Thermal performance analysis of a solar heating plant, Proceedings of Solar
World Congress, 2017, Abu Dhabi, UAE）.
Above-mentioned big volume thermal storage tank is positioned over underground or semi-underground mostly, the bottom of heat storage, the whole of side or
Person part is directly contacted with soil all in below ground.This have the advantage that can make full use of soil moisture whole year wave
Dynamic smaller characteristic effectively reduces the heat loss of heat storage, but the disadvantage is that underground volume is big, caloric receptivity is big, heat storage
Heat continuously flows to Soil Surrounding by the form of heat transfer from heat storage, and heat storage Soil Surrounding temperature is caused to increase
And certain temperature gradient is formed centered on heat storage.The presence of the temperature gradient pushes heat loss to the quite big model in periphery
Among enclosing interior soil, the waste of the energy is caused.This patent is directed to a kind of water body soil coupling regenerative apparatus and in fact
With method heat storage efficiency is improved to solve above-mentioned technical barrier.
Existing heat storage technology includes：Gravel soil heat storage technology, water body（Pond）Heat storage technology and water body couple gravelly soil
Earth heat storage technology.
Gravel soil heat storage technology：Be using one or more than one kinds of solid porous media as bearing heat-storing material,
Using water, air or other fluids as a kind of heat storage technology of heat transferring medium.Such as patent US4010731（Harrison）It is open
A kind of heat storage being placed in underground, heat-storing material of the filling with certain porosity in heat storage, such as water and gravel.Heat storage
Periphery by being distributed setting macromolecule barrier layer and insulating layer inside outside.Baffle is provided in heat storage to ensure in heat-storing material
Uniform fluid flow reduces heat exchanging corner.Patent WO2007109899（Menova Energy Inc.）It discloses a kind of positioned at building
Underground heat storage body below object, heat storage are made of at least two heat-storing materials, can be used as the basis of building.Heat storage periphery
There is insulating layer.Patent US4466256（MacCracken）Disclose a kind of accumulation of heat scheme of aqueous soil.By waterproof membrane shape
At container in, fill water and soil, and fluid line is set in different height, pass through above-mentioned fluid line and realize thermal store
Fill exothermic operation.Patent WO2014070096（Skanska Sverige AB）Disclose a kind of soil source partition heat storage technology side
Case achievees the purpose that efficiently use thermal energy using the temperature gradient in soil thermal storage body.Patent US20090101303
（Michael Henze）With patent DE19929692（Bernd Scheuermann）Individually disclose a kind of underground water and porous
Medium heat storage technology has at least one porous solid construction material in heat storage, can absorb and long-term keeps moisture content.Patent
US7192218（Peters etc.）A kind of body of groundwater, aquifer heat storage technology are disclosed, isolated wall is set in water body, is passed through
Exothermic operation is filled in flowing realization of the water in heat storage medium gap passage.
Gravel is also used for high-temperature heat-storage.Patent US20130206356（Pedretti）Disclose a kind of high temperature cobble storage
Thermal technology, regenerator temperature are not less than 100 C.The heat-storing materials such as cobble or ceramic material are filled in the heat storage, periphery is by resistance to height
Warm, strain resistant cement wall package.Patent US7891187（Mohr）Disclose a kind of multi-cavity type solid storage for heat power generation
Hot device, the thermal storage device are divided into different cavitys from inside to outside, and the cavity of internal layer fills the chamber of the smaller heat accumulating of grain size, outer layer
The larger heat accumulating of filling grain size in vivo.Patent US9085412（Saskura etc.）And US20150345873（R.J.
Sasakura and D. O. Summers）Disclose the heat-storage technology based on porous heat storage medium.Water body gravel soil accumulation of heat skill
Art belongs to solid-liquid two-phase heat storage technology, and heat storage has self-supporting ability, and heat storage top can be used as building foundation, parking lot etc.
Purposes, but fluid heat transferring is inhibited in porous media, and system heat exchange rate is relatively low, therefore the temperature difference is larger when charge and discharge heat；Together
When to increase heat exchange efficiency, often need to arrange complicated fluid line, baffle etc. in heat storage, increase the cost of system.
Water body accumulation of heat：It is using water as the accumulation of heat/refrigeration technique for most wanting heat accumulation/cold material.It can be subdivided into storage by function and usage
Heat and Cool Storage Technology.Patent US4011736（Harrison）Disclose a kind of ice making located underground, ice storage cold-storage body and by its
Technology for building air conditioning.Patent US4240268（Yuan）Disclose a kind of underground ice making, ice storage storage refrigeration technique, cold-storage body
It is wrapped up by waterproof high polymer material and thermal insulation material on periphery.Patent US4456056（T. J. Sills）Disclose a kind of water body storage
Thermal technology scheme, water realize the purpose of Winter heat supply, cooling in summer by the phase transformation of water ice as heat-storing material.The heat storage
Top have the insulating layer of floating, bottom and side setting waterproof layer and insulating layer.Patent US5201606（Davis etc.）It is open
A kind of heat-storage and cold-storage technology, the thermal store configure one kind and leading ice production apparatus, it is seen that ice imported into the bottom of heat storage, improves and is
System efficiency.
Whether use Insulation, water body accumulation of heat that can be subdivided by water bottom and side：Two classes are kept the temperature without keeping the temperature and having.
It is the heat exchange inhibited between heat storage and soil in the purpose that insulating layer is arranged in accumulation of heat water bottom or side, reaches reduction accumulation of heat
The purpose of body heat damage.Such as patent US20130327317（JR Hendrickson）Disclose a kind of water body accumulation of heat side of band heat preservation
Method and thermal water utilization method, using a kind of inlet temperature decker.Patent CN105841360（Chinese Academy of Sciences electrician studies
Institute）A kind of solar energy medium temperature heating system based on across season water body accumulation of heat is disclosed, heat storage bottom and side are provided with guarantor
Warm layer, but the embodiment that patent does not provide across season water body accumulation of heat.Patent CN106678931（The development of He Pu heating power has
Limit company）It discloses a kind of across season natural water accumulation of heat and electrode boiler is combined the system for carrying out thermal power plant's peak regulation, and give
The case study on implementation of natural accumulation of heat water body is gone out, but heat storage regenerator temperature is relatively low（Not higher than 80 C）, water cannot be given full play to
Accumulation of heat potentiality, reduce utilization rate and heat storage efficiency, and patent does not provide the technology of thermal stratification device, periphery insulating layer
Scheme does not provide the technical clarification that water body and soil are carried out to coupling accumulation of heat yet.
The technology that insulating layer is not provided in the bottom of accumulation of heat water body or side has patent US4031952（Bernard
Contour）With patent CN102374571（Zhang Ming）.The former discloses a kind of bottom and water body heat storage technology of the side without heat preservation
Scheme, the heat storage pool are divide into upper part and lower part by diaphragm, and lower part water body provides steam by nuclear energy or other facilities and heats, upper water
Body is exposed to atmospheric environment, and the periphery of water body is without Insulation.Latter discloses a kind of underground heat storage pond of big volume and its make
With mode, which is made of concrete and steel construction, but patent does not provide coupling Soil Surrounding progress
The technical solution of accumulation of heat and technical clarification.
The advantages of water body heat storage technology is to fill that rate of heat release is big, heat storage medium thermal capacitance is big, but compared with gravel soil accumulation of heat,
Cost is higher.
Water body+gravel soil heat storage technology：Advantage and disadvantage based on water body and gravel soil heat storage technology have many both at home and abroad
The two be combined with each other by patent trial, learns from other's strong points to offset one's weaknesses.Such as patent US4159736（Denis etc.）Disclose three kinds of heat storage technology sides
Case includes using gravel and water as the artificial heat storage technical solution of heat-storage medium, the natural heat storage formed using natural stream channel
Technical solution and using water as the water body heat storage technology scheme of heat-storage medium.Although patent also discloses with gravel and is to be situated between with water
The different heat storage technology schemes of matter, but the skill being coupled to water body and gravel or soil source in one heat storage is not provided
Art scheme.Patent CN102061708（Song Zhenhai）Disclose it is a kind of can be used for low-temperature receiver, heat source, water source and accumulation of energy, storing more work(
It can store, give and hot and cold and high thermal energy storage is done as carrier using ice, water, metal, cobble respectively, realize and energize, supply water or do object
The technical solution of matter deposit.But if the multi-functional cellar for storing things is divided into dried layer, and not only construction cost is high, while low space utilization.This is specially
Profit is not provided using water, cobble as the embodiment of carrier heat accumulation and technical clarification yet.Patent US4361135（Metz）It discloses
A kind of water adds the technical solution of soil source accumulation of heat, which is located at building lower part, by one 7.5-15 cubic metres of water tank
With several horizontally or vertically pipeline compositions being uniformly arranged in water tank Soil Surrounding.Pass through cycle heat exchange medium in above-mentioned pipeline
Realize the heat exchange with soil.Patent US4452227（Lowrey III）Four kinds of technical solutions are disclosed, using below solar pond
Soil carries out accumulation of heat.First, the pipe laying below solar pond, injects water into soil by above-mentioned pipe laying or strong brine reaches
With the purpose of soil heat exchange, three kinds of schemes have been derived according to the difference of fluid media (medium) and pipeline arrangement mode.4th kind of scheme be
Solar pond and lower section soil are placed within fluid-tight membrane layer, by the way that strong brine is injected and extracted in the aqueous soil of lower part
Reach heat exchange purpose.Patent CN104236129（In be full of the Changjiang river world new energy Investment Co., Ltd）It is cold to disclose a kind of bilayer
The dual-purpose salt-free solar pond of heat and cross-season energy storage cold and heat supply system.The salt-free solar pond of bilayer cold, hot two-purpose by upper layer it is salt-free too
The energy storage pond of Yang Chi and lower layer is constituted, and heat exchange operation is carried out to solar pond and energy storage pond by fluid line.Although above-mentioned patent
It all attempts water body and gravel soil source heat storage technology being combined into a heat storage, but not providing effectively will be with water body and gravel
The scheme of stone soil organic coupling.Such as patent US4361135（Metz）Middle water tank and soil source heat storage have respective heat exchange to fill
Set, being lost to the heat in Soil Surrounding from water tank needs through pre-buried fluid line recycling in soil, increase system at
This.Patent US4452227（Lowrey III）And CN104236129（In be full of the Changjiang river world new energy Investment Co., Ltd）All taste
Examination combines solar pond and soil source heat storage, but due to fluid in energy storage pond/solar pond and water body unicom in soil, it may be difficult to
What is avoided causes body of groundwater to flow, thus the implementation result of the technical solution influenced by groundwater state it is very big.If bottom
There are groundwater flows in the soil in portion, inevitably will take away soil high temperature water body, substantially reduce soil thermal storage body
Accumulation of heat effect.Above-mentioned patent does not provide the concrete measure for preventing groundwater flow.Patent WO2011140112（D. M.
Gandy）A kind of soil source heat-exchanger rig and heating refrigeration method are disclosed, filled with heat exchange stream in the geothermal source heat-exchanger rig
Body, which fills heat storage medium, and enhanced heat transfer structure is arranged on the outside of device, is stored with enhanced heat exchange fluid and periphery
The coefficient of heat transfer of hot body.It is additionally provided with the baffle of trepanning in the geothermal source heat-exchanger rig, to disturb heat exchanging fluid, increases heat exchange system
Number.Although the fluid filled in heat-exchanger rig can also store certain heat, its volume is smaller compared with the heat storage medium of periphery,
Its major function is to realize the heat exchange of plug flow.
Invention content
For the above-mentioned prior art the problem of, the present invention provides a kind of big volume pond accumulation of heat and soil thermal storages
The heat storage of organic coupling, the advantage that can have both made full use of thermal storage tank's charge and discharge thermal velocity fast, easy to operation, can also compared with
The soil thermal storage body of large capacity is obtained under low cost simultaneously.This patent additionally provides the application method of the coupling heat storage.
In order to achieve the above objectives, present invention employs following technical solutions：
A kind of water body soil couples heat storage, on the coupling heat storage water level located underground, including accumulation of heat water body and soil source
Heat storage, soil source heat storage are located at the bottom surrounding of accumulation of heat water body, floating insulation cover, accumulation of heat water body are arranged at the top of accumulation of heat water body
It is provided with heat conduction layer between soil source heat storage, water body inlet and outlet are provided on accumulation of heat water body.
The water body inlet and outlet include at least three：It is at least one to be imported and exported positioned at the bottom of accumulation of heat water bottom, at least
One middle part inlet and outlet being located in the middle part of accumulation of heat water body and at least one top inlet and outlet at the top of accumulation of heat water body.
The earth's surface part that soil source heat storage is located on the outside of accumulation of heat water surface is provided with rigid insulating layer.
Heat conduction layer includes at least flexible barrier layers and heat transfer enhancement layer.
Heat transfer enhancement layer is mixed by least one heat transfer reinforcing material and at least one load-bearing material.
Two kinds of accumulation of heat patterns are realized by using different inlet and outlet：Layering accumulation of heat pattern couples accumulation of heat with water body soil source
Temperature reforming mode and two kinds of heat supply modes：Direct heating pattern couples heat storage heat pump heat supply pattern with water body soil.
Layering accumulation of heat pattern is to be heated after taking out accumulation of heat water body by bottom inlet and outlet/middle part inlet and outlet, basis after heating
Water temperature after heating returns to accumulation of heat water body by top inlet and outlet/middle part inlet and outlet.
It by top inlet and outlet/middle part inlet and outlet after the taking-up of accumulation of heat water body is directly user that direct heating pattern, which is by hot water,
Heat supply passes through middle part inlet and outlet/bottom according to water temperature after cooling after cooling and imports and exports return accumulation of heat water body.
Water body and soil source coupling regenerator temperature reforming mode are：Middle part inlet and outlet are separately connected heat pump by pipeline
Evaporation ends and condensation end, a part of water body enter thermo-compression evaporation end after the inlet and outlet outflow of middle part, pass through after heat pump cools down
Bottom inlet and outlet return to accumulation of heat water body, while another part water body enters heat pump condensation end after the inlet and outlet outflow of middle part,
It is imported and exported by top after heat pump and returns to accumulation of heat water body, the water in such accumulation of heat water body realizes the water on top by heat pump
Body is heated to heat supply temperature and carries out heat supply, the cooled depth extraction for realizing low temperature heat energy of water body of lower part and utilization.
Water body soil couples heat storage heat pump heat supply pattern：Water in accumulation of heat water body is passed in and out from top inlet and outlet/middle part
Mouth directly feeds user's use after heat pump after taking out.
The technique effect that the present invention has：
1, soil source heat storage, the accumulation of heat of soil source heat storage and exothermic process is not used directly to be all used as by thermal storage tank slow
Punching, can abundant body soil source accumulation of heat accumulation of heat potentiality, in turn ensure higher storage rate of heat release.
, in summer, solar energy resources are abundant but low with heat demand, and the solar energy of a large amount of surpluses can pass through accumulation of heat water body
It realizes that fast storage, a part of heat of deposit accumulation of heat water body will be further transferred in soil source heat storage, is stored in soil source
The heat stored in hot body, although temperature is relatively low, enormous amount, can in winter thermal energy it is deficient, energy in accumulation of heat water body
When amount is insufficient, by the method for heat transfer, water body is returned to from soil, across the season storage of heat is realized and utilizes.
, by using bottom inlet and outlet, middle part inlet and outlet and top import and export, realize two kinds of accumulation of heat patterns：It is layered accumulation of heat
Pattern couples regenerator temperature reforming mode and two heat supply modes with water body soil source：Direct heating pattern, water body soil coupling
Heat storage heat pump heat supply pattern is closed, has the technical effect that accumulation of heat water body forms thermal stratification, temperature continuously decreases from top to bottom.It stores
Water temperature at the top of hot water is high, and bottom water temperature is low.Heat supply temperature can be improved in the higher water temperature in top, when direct heating, reduces auxiliary
It helps the usage amount of heat source, when indirect heating, thermo-compression evaporation end temperature can be improved, and then improve operation of heat pump efficiency.Accumulation of heat water body
The lower water temperature in bottom, on the one hand can reduce the heat loss of accumulation of heat water bottom, and enhancing is from soil source heat storage to accumulation of heat water body
The heat transfer in direction improves the utilization rate of Soil Surrounding source heat storage, and on the other hand, taking out water body by accumulation of heat water bottom makes
When being heated with solar thermal collector, the photothermal conversion efficiency of solar thermal collector can be improved.
Description of the drawings
The following further describes the present invention with reference to the drawings：
Fig. 1 is the cross-sectional view of regenerative apparatus of the present invention；
Fig. 2 heat exchange schematic diagrames between water body and soil；
Fig. 3 is regenerative apparatus heat supply scheme schematic diagram of the present invention；
Fig. 4 is regenerative apparatus direct heating scheme schematic diagram；
Fig. 5 is regenerative apparatus another kind direct heating scheme schematic diagram；
Fig. 6 is that regenerative apparatus reforms scheme schematic diagram using heat pump into trip temperature；
Fig. 7 is that regenerative apparatus carries out direct heating scheme schematic diagram using heat pump；
Fig. 8 is a kind of optional water body soil coupling accumulation of heat shape
Wherein：
1. flexible barrier layers, 2. top flexible barrier layers, 3. insulating layers, 4. exterior cover sheets, 5. accumulation of heat water bodys, 6. cofferdam, 7.
Soil protection layer, 8. levels of ground water, 9. heat transfer enhancement layers, 10. soil source heat storages, 11. bottoms inlet and outlet, 12. middle part into
Outlet, 13. top inlet and outlet, 14. manholes, 15. anti-water barrier layers, 16. rigidity insulating layers, 17. soil, 18. water resource heat pumps,
18a. water resource heat pumps condensation end, 18b. water resource heat pumps evaporation ends, 19. heat users.
Specific implementation mode
The invention will be further described with specific implementation mode for explanation below in conjunction with the accompanying drawings：
Embodiment 1
This patent proposes that a kind of GWh grade regenerative apparatus of water body and soil source accumulation of heat organic coupling, the regenerative apparatus are located underground
8 top of water level, is made of centrally located accumulation of heat water body 5 and the soil source heat storage 10 positioned at accumulation of heat water body periphery.Accumulation of heat water
Body 5 is medium temperature regenerator body, and top setting floating insulation cover, top floats insulation cover and obstructed from inside to outside including at least top flexibility
Layer 2, insulating layer 3 and exterior cover sheets 4.Soil source heat storage 10 is low-temperature heat accumulating body, and soil source heat storage is located at accumulation of heat water body 5
The rigid insulating layer of earth's surface part setting outside periphery, rigid insulating layer include at least soil cover 7, barrier layer 15 from top to bottom
With insulating layer 16.Heat conduction layer is provided between accumulation of heat water body 5 and soil source heat storage 10, heat conduction layer wraps successively from inside to outside
Include flexible barrier layers 1, protective layer and heat transfer enhancement layer 9.Heat transfer enhancement layer 9 is by least one heat transfer reinforcing material such as mine
Mountain flour and at least one load-bearing material such as soil mix.The pyroconductivity of heat transfer reinforcing material should be high as much as possible, such as
At least 2 times or more of Soil heat conductivity.
Different height is provided at least three inlet and outlet in accumulation of heat water body 5：It is at least one positioned at 5 bottom of accumulation of heat water body
Bottom inlet and outlet 11, bottom inlet and outlet 11 are substantial access to bottom, and one Preferable scheme is that bottom inlet and outlet 11 and accumulation of heat
Distance is not more than 10 cm between 5 bottom of water body；At least one middle part inlet and outlet 12 in the middle part of accumulation of heat water body, one preferably
Scheme be that accumulation of heat water body 5 12 is divided into two by middle part inlet and outlet, the water body volume of above-mentioned 12 top of middle part inlet and outlet and middle part
The water body volume of 12 lower section of inlet and outlet is identical；
At least one is located at the top inlet and outlet 13 at 5 top of accumulation of heat water body, and top inlet and outlet 13 are filled with top flexible barrier layers 2
Tap is close, and one is not more than 20 cm Preferable scheme is that the distance between 13 and top flexible barrier layers 2 are imported and exported in top.
By using bottom inlet and outlet 11, middle part inlet and outlet 12 and top inlet and outlet 13, it can be achieved that two kinds of accumulation of heat patterns：Point
Layer accumulation of heat pattern couples regenerator temperature reforming mode and two heat supply modes with water body soil source：Direct heating pattern, water body
Soil couples heat storage heat pump heat supply pattern.
Another of the device is characterized in not using soil source heat storage 10 directly, the accumulation of heat of soil source heat storage 10 and put
Thermal process is all used as buffering by accumulation of heat water body 5, can abundant body soil source accumulation of heat accumulation of heat potentiality, in turn ensure higher
Store rate of heat release.
The using effect of the device is：When heat resource includes that solar energy, waste heat energy etc. surplus occur, by the heat of surplus
In energy storage to accumulation of heat water body 5, the optional layering accumulation of heat pattern of one kind is that water is imported and exported 11 from accumulation of heat water body 5 by bottom
Middle taking-up, is heated, if heated water temperature is more than specific temperature T1, accumulation of heat water body is returned by top inlet and outlet 13
In 5；If heated water temperature is less than specific temperature T1, returned in accumulation of heat water body 5 by middle part inlet and outlet 12.Another kind can
The layering accumulation of heat scheme of choosing be by water by middle part inlet and outlet 12 in take out, heated, heated hot water by top into
Outlet 13 returns in accumulation of heat water body 5.
Another using effect of the patent is that the heat in accumulation of heat water body 5 is enhanced by flexible barrier layers 1 and heat transfer
Layer 9 is transmitted to soil source heat storage 10 in the form of heat transfer, and certain temperature gradient is formed in soil source heat storage 10.
Because level of ground water 8 is located at the lower section of soil source heat storage 10, groundwater flow is not present in soil source heat storage 10, therefore keep away
Additional heat loss caused by having exempted from interflow subsurface drainage.As shown in Fig. 2, in summer, solar energy resources are abundant but low with heat demand, greatly
Fast storage can be realized by accumulation of heat water body 5 by measuring the solar energy of surplus, and a part of heat of deposit accumulation of heat water body 5 will be further
It is slowly transmitted in soil source heat storage 10, the heat stored in soil source heat storage 10, although temperature is relatively low,
Enormous amount, can in winter thermal energy it is deficient, in accumulation of heat water body 5 when energy deficiency, by the method for heat transfer, returned to from soil
Water body is realized across the season storage of heat and is utilized.
The device can be flexibly switched to different by designing pipeline appropriate as shown in figure 3, by the unlatching of valve
Operational mode：Direct heating pattern, water body soil source coupling regenerator temperature reforming mode, water body soil couple heat storage heat pump
Heat supply mode.
It is described in detail below for three kinds of operational modes：
1, direct heating pattern:
In energy shortage, it is 19 heat supply of heat user to use the heat in accumulation of heat water body 5 first.As shown in figure 4, a kind of optional
Thermal energy extracting method is to take out hot water from accumulation of heat water body 5 by top inlet and outlet 13, heat supply is carried out for heat user 19.Such as
The cooled water temperature of fruit is more than specific temperature T2, and accumulation of heat water body 5 is returned by middle part inlet and outlet 12；
Valve state at this time is：
If cooled water temperature is less than specific temperature T2, accumulation of heat water body 5 is returned by bottom inlet and outlet 11.
Valve state at this time is：
Another optional direct heating scheme is to take out water from heat storage 5 by middle part inlet and outlet 12, is heat user 19
Heat supply is carried out, cooled water returns to accumulation of heat water body 5 by bottom inlet and outlet 11, as shown in Figure 5.
Valve state at this time is：
2, water body and soil source couple regenerator temperature reforming mode：
The volume of soil source heat storage 10 is more than the volume of accumulation of heat water body 5, but the regenerator temperature of soil source heat storage 10 is less than storage
The regenerator temperature of hot water 5, when the heat of accumulation of heat water body 5 is by use, the lower part of accumulation of heat water body 5 and the water at middle part are gradually cold
But to the temperature for being less than soil source heat storage 10.The heat stored in soil source heat storage 10 is passed by heat in thermo-conducting manner
It leads enhancement layer 9 and flexible barrier layers 1 enters accumulation of heat water body 5, improve the water temperature of accumulation of heat water body 5.As the water temperature of accumulation of heat water body 5 connects
Closely or it is less than specific temperature T2, because temperature T2 is less than heating system supplying temperature T1, so cannot be directly to 19 heat supply of heat user.
A kind of optional scheme is reformed into trip temperature to accumulation of heat water body 5 with heat pump 18, as shown in fig. 6, middle part inlet and outlet 12 are led to respectively
The evaporation ends 18b imports for crossing valve V6 connections water resource heat pump 18 pass through valve V8, the import of V3 connection condensation ends 18a.Bottom into
The outlet of the evaporation ends 18b of 11 connection water resource heat pump 18 of outlet, top inlet and outlet 13 pass through valve V9, V4 connections water resource heat pump 18
The outlet of condensation end 18a.Inlet and outlet 12 flow out in accumulation of heat water body 5, in the middle part of the water of lower part process, enter water source heat by valve V6
Pump 18 evaporation ends 18b, accumulation of heat water bodys 5 returned to by bottom inlet and outlet 11 after the cooling of heat pump 18, at the same in accumulation of heat water body 5, on
The water in portion enters heat pump 18 by the condensation end 18a of valve V8, V3 and water resource heat pump 18, passes through valve after the heating of heat pump 18
V4, V9 return to accumulation of heat water body 5 by top inlet and outlet 13.Effect is, in accumulation of heat water body 5, the water of lower part be cooled to lower temperature,
Such as 5-15 C, and in accumulation of heat water body 5, the water on top be heated to higher temperature, such as close to heat supply temperature T1.
Valve state at this time：
3, water body soil couples heat storage heat pump heat supply pattern：
In an advantageous case, it can also be used to directly feed after heat pump promotes the water in accumulation of heat water body into trip temperature and be used with heat
Family, as shown in Figure 7.Accumulation of heat water body 5 through middle part inlet and outlet 12, valve V10, V6 or top inlet and outlet 13, valve V9, V5, V6 with
The evaporation ends 18b imports of water resource heat pump 18 connect.Evaporation ends of the accumulation of heat water body 5 by bottom inlet and outlet 11 and water resource heat pump 18
The outlet of 18b connects.The condensation end of water resource heat pump 18 connects the turnover pipeline of heat user by valve V1, V2 respectively.Accumulation of heat water
Water in body 5 passes through middle part inlet and outlet 12 or top inlet and outlet 13 enter heat pump, after being promoted to heat supply temperature into trip temperature, directly
Supply heat user.Through heat pump water after cooling accumulation of heat water body is returned to by bottom inlet and outlet 11.Middle part inlet and outlet 12 or top into
The temperature that can be imported and exported according to middle part at 12 and top inlet and outlet 13 of choosing of outlet 13 makes advantageous decision, a kind of preferred
Scheme is that inlet and outlet 12 are preferentially chosen in the case where disclosure satisfy that heat demand.
When valve state at this time：
Another scheme is to choose top inlet and outlet 13, and valve state at this time is：
A kind of preferred specific temperature T1 is heating system supplying temperature, such as 65-90 C.A kind of preferred specific temperature T2 is to supply
Hot systems return water temperature, such as 30-50 C.In an advantageous case, when automated system operation controls, specific temperature T1 may be
The measuring temperature at 5 top of accumulation of heat water body, specific temperature T2 are alternatively the measuring temperature at 5 middle part of accumulation of heat water body.
Heat exchanger can be configured as needed in above-mentioned accumulation of heat and heat supply mode, it will be in fluid, heat pump 18 in accumulation of heat water body 5
Fluid, heat user heat transferring medium, mutually isolated between heat source heat transferring medium, the using effect without influencing this patent.
Above-mentioned accumulation of heat water body 5 and soil source heat storage 10 can be rectangular, round or other irregular shapes.It can be examined in synthesis
Consider and build under the factors such as difficulty, cost, preferably accumulation of heat water shape.One preferred accumulation of heat water shape is to be inverted, go to top
Pyramid, as shown in Figure 8.
It will be recognized by those skilled in the art, can be to above-mentioned under the premise of without departing from protection scope of the present invention
Embodiment is carry out various modifications, changes and is combined, and thinks that this modification, variation and combination are the models in originality thought
Within enclosing.
Claims (10)
1. a kind of water body soil couples heat storage, on the coupling heat storage water level located underground, which is characterized in that including accumulation of heat
Water body and soil source heat storage, soil source heat storage are located at the bottom surrounding of accumulation of heat water body, and floating, which is arranged, at the top of accumulation of heat water body protects
Temperature lid, is provided with heat conduction layer between accumulation of heat water body and soil source heat storage, water body inlet and outlet are provided on accumulation of heat water body.
2. a kind of water body soil as described in claim 1 couples heat storage, which is characterized in that the water body inlet and outlet are at least wrapped
Include three：At least one bottom positioned at accumulation of heat water bottom is imported and exported, at least one middle part in the middle part of accumulation of heat water body into
Outlet and at least one top inlet and outlet at the top of accumulation of heat water body.
3. a kind of water body soil as described in claim 1 couples heat storage, which is characterized in that soil source heat storage is located at accumulation of heat
Earth's surface part on the outside of water surface is provided with rigid insulating layer.
4. a kind of water body soil as described in claim 1 couples heat storage, which is characterized in that heat conduction layer includes at least flexibility
Barrier layer and heat transfer enhancement layer.
5. a kind of water body soil as claimed in claim 4 couples heat storage, which is characterized in that heat transfer enhancement layer is by least one
Kind heat transfer reinforcing material and at least one load-bearing material mix.
6. a kind of application method of the water body soil coupling heat storage described in claim 2, which is characterized in that by using difference
Inlet and outlet realize two kinds of accumulation of heat patterns：Layering accumulation of heat pattern couples regenerator temperature reforming mode and two kinds with water body soil source
Heat supply mode：Direct heating pattern couples heat storage heat pump heat supply pattern with water body soil.
7. application method as claimed in claim 6, which is characterized in that layering accumulation of heat pattern is to pass in and out accumulation of heat water body by bottom
Mouth/middle part inlet and outlet heat after taking out, and return and store by top inlet and outlet/middle part inlet and outlet according to the water temperature after heating after heating
Hot water.
8. application method as claimed in claim 6, which is characterized in that direct heating pattern be by hot water by top inlet and outlet/
Middle part inlet and outlet are directly user's heat supply after the taking-up of accumulation of heat water body, are passed in and out by middle part according to water temperature after cooling after cooling
Mouth/bottom inlet and outlet return to accumulation of heat water body.
9. application method as claimed in claim 6, which is characterized in that water body and soil source couple regenerator temperature reforming mode
For：The evaporation ends and condensation end that heat pump is separately connected by pipeline are imported and exported in middle part, and a part of water body is imported and exported from middle part to flow out
After enter thermo-compression evaporation end, imported and exported by bottom after heat pump cools down and return to accumulation of heat water body, while another part water body
Heat pump condensation end is entered after the inlet and outlet outflow of middle part, is imported and exported by top after heat pump and returns to accumulation of heat water body, this
Water in sample accumulation of heat water body realizes that the water body on top is heated to heat supply temperature and carries out heat supply by heat pump, and the water body of lower part is cold
But depth extraction and the utilization of low temperature heat energy are realized.
10. application method as claimed in claim 6, which is characterized in that water body soil couples heat storage heat pump heat supply pattern and is：
Water in accumulation of heat water body directly feeds user after heat pump after being taken out from top inlet and outlet/middle part inlet and outlet and uses.
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| CN112628839A (en) * | 2020-12-18 | 2021-04-09 | 中国人民解放军陆军勤务学院 | Underground engineering condensation heat discharge system and method based on domestic water |
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