CN101173828A - Circulating geothermal heat exchange type underground energy accumulation liquid warehouse - Google Patents
Circulating geothermal heat exchange type underground energy accumulation liquid warehouse Download PDFInfo
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- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention relates to a circulated geothermal exchange type underground energy accumulation liquid pool, comprising one or more underground liquid pools constructed underground in non-excavation mode, heating medium, a plurality of buried heat exchange tubes and a plurality of circulated delivery tubes, wherein, the heating medium in the underground liquid pools can store the cold energy or heat energy in nature, including the geothermal energy; the buried heat exchange tubes are connected among the underground liquid pools or between the upper liquid layer and the lower liquid layer of the underground liquid pools, the circulation delivery tubes are arranged in the channels between the underground liquid pools and the ground surface. With the structure, the invention has the advantages that the storable energy is increased due to large temperature difference between the ground surface and the heating medium stored underground; compared with the method of using rivers as the cold and hot water sources, the thermal pollution and harmful effect to the ecological environment are avoided; compared with the method of using the buried U-shaped tube soil heat exchange unit as the cold and hot sources, the detrimental influence of a large quantity of contact heat transfer due to the near ground surface soil is avoided; the floor area of ground surface is greatly reduced, the heat exchange speed is greatly accelerated, the heat exchange efficiency is improved and the extensive popularization and application is suitable.
Description
Technical field
The invention belongs to environmental protection and energy saving technology and field of renewable energy resource utilization, especially relate to a kind of circularly geoheat exchanging underground energy-accumulating liquid reservoir technology.
Background of invention
Earth surface water source and soil are huge solar thermal collectors, have collected 47% solar energy, utilize human every year more than 500 times of energy.Earth-source hot-pump system is a kind of underground shallow-layer regenerative resource of utilizing, the efficient circulation heat-exchange system that comprises underground water, soil or surface water etc., by import a spot of high-grade energy to heat pump, obtain of the transfer output of a large amount of low temperature potential energies to the high temperature potential energy.
The principal mode that adopts in the existing heat pump techniques is air source heat pump, water resource heat pump or earth source heat pump, wherein, earth surface water source such as rivers water source or deep-well water source are the main heat exchange sources of water resource heat pump, when using the rivers water source, because of need heating winter Congjiang river source a large amount of draw heats in bottom or needs refrigeration summer Congjiang river source the bottom give off heat in a large number, can cause cold and hot pollution and harmful effect to water ecosystem.When using the deep-well water source, the deep well reinjection water resource heat pump is owing to recharge than the water intaking difficulty to underground, in addition, also has underground water source, be subjected to the restriction of local hydrogeologic condition bigger when using underground water source, the variation of underground hydrogeologic condition is very big to the influence of systematic function, and system is difficult to duplicate on a large scale production.Water source heat pump technology in utilizing underground water and earth surface water source, because of the cost problem that has groundwater recharge and surface water is influenced by environmental temperature and heat exchange to the problems such as influence of water ecological setting, make its application be subjected to certain restriction.
Soil buried tube type soil source heat pump system is a kind of mode of earth-source hot-pump system, realizes the heat exchange of heat-carrying agent and ground by burying the soil heat exchange device underground, does not have harmful effects such as cold and hot pollution.Bury the front end coupling unit that ground heat exchange tubular type circularly geoheat exchanging underground energy-accumulating liquid reservoir can be used as soil buried tube type heat pump, usually be divided into: horizontal coiled pipe, perpendicularly buried pipe and spiral coil, wherein, the most effective soil pipe laying method to set up is that the mode of utilizing excavation pipe laying or every phase vertically to bury a underground U-shaped pipe across a certain distance underground is provided with the soil pipe laying, these technology are used in a large number in the various countries, North America, being proved can be with the energy supply problem such as building air conditioning and hot water of solving (referring to " Energy saving mechanism of earth source heat pump ", solar energy journal vol.25, No.1), wherein, the mode of level excavation pipe laying such as " the thin solum ground temperature water resource heat pump " that Chinese patent ZL200420015826.7 is announced, cost increases severely owing to need carry out a large amount of earthworks, seldom use, the helix tube pipe laying also needs to excavate pipe laying, and the heat exchange effect is not as good as U-shaped pipe perpendicularly buried pipe; The mode of non-excavation pipe laying only depends on U-shaped pipeclay earth pipe laying to carry out heat exchange, to the requirement of the material of soil heat exchange device and geologic structure than higher, therefore efficient is not high enough, system generally is applicable to the inhabitation class single building that area is smaller, in heavy construction, use difficulty relatively, and the earth drilling degree of depth of perpendicularly buried pipe is big, construction period is long, the cost height, normally descending the borehole engineering expense is to account for 50% of whole engineering, when particularly in the city, using, because of building and communal facility dense distribution make very inconvenience of construction, and because urban land costs an arm and a leg, carry out above-mentioned engineer operation construction soil pipe laying and except the influence greatly that is subjected to the surface structures spacing, also taken surface area in large quantities, and, U-shaped pipeclay earth heater also is subjected to the adverse effect of a large amount of transmission of heat by contacts of near surface formation soil section, and the application under many occasions all is restricted.
In sum, because prior art also exists above-mentioned many disadvantages and uses restriction, in order to solve the large-scale promotion application problem that regenerative resources such as utilizing the earth heat accumulation provides building air conditioning and hot water energy supply and produces the required cold and hot energy of low level better, also need to consider the restriction of prior art is comprehensively broken through from new angle.
Summary of the invention
The object of the present invention is to provide that a kind of to bury ground heat exchanger tube technology heat exchange property than existing soil more stable, floor space is little, operating expenses is low, short construction period, and be suitable in the big-and-middle-sized earth source heat pump energy conservation project in city construction and use, can adopt non-digging mode to build circularly geoheat exchanging underground energy-accumulating liquid reservoir with large-scale promotion application.
The present invention is achieved by the following technical solutions: adopt a kind of circularly geoheat exchanging underground energy-accumulating liquid reservoir, it is characterized in that, by one or above be built in underground underground liquid storehouse, heat-carrying agent, bury ground heat exchanger tube, circulation transfer pipeline etc. and form through non-digging mode, assemble in the heat-carrying agent in the underground liquid storehouse and store nature cold or the heat that comprises geothermal energy, bury the ground heat exchanger tube and be connected between the underground liquid storehouse or between the upper and lower liquid layer in underground liquid storehouse, the conveyance conduit of circulation transfer pipeline is arranged in the duct between underground liquid storehouse and ground.Described heat-carrying agent comprises the fluid liquid that contains solid-state ergastic substances in liquid or the liquid or the combination of liquid and solid, and wherein, liquid comprises water, emulsion, aqueous solution or compound solution.Described heat-carrying agent also can comprise and contains the nano-fluid that suspension sub-micro level particle comprises nano particle.Can lay on the pipe laying in solid parietal layer inner surface of the mortar in described underground liquid storehouse or underground liquid storehouse or the interior tube-surface of push pipe in the antiseep isolated protective layer of heat-carrying agent or the underground liquid storehouse fexible film liner liquid storing bag can be set, perhaps underground liquid can be provided with the liner liquid storage pipe in the storehouse.Described underground liquid storehouse of building through non-excavation method is through the underground liquid storehouse of explosive forming and the solid wall method building of mortar or through the underground liquid storehouse of non-excavation horizontally-guided probing pipe laying or push bench process building, and it is the degree of depth apart from first reservoir bed below the face of land that the best in described underground liquid storehouse is provided with the degree of depth.But the described ground heat exchanger tube that buries is bend pipe or semihard pipe or the hard tube of burying underground in underground straight line probing through non-excavation horizontally-guided probing pipe laying method, but or bend pipe or the semihard pipe buried underground in underground brake forming probing through non-excavation horizontally-guided probing pipe laying method, the described adjacent scope of A at interval of burying underground of burying the ground heat exchanger tube is at 1.5 to 6 meters.Described material of burying the ground heat exchanger tube can adopt metal or high molecule plastic or glass fibre or the combination of above-mentioned material made, the surface of burying the ground heat exchanger tube can have fin or the wing line that strengthens heat exchange, and the filler of preserving moisture that absorbs water can be set between described fin.Also have delivery pump in the circulation transfer pipeline in the described duct that is arranged between underground liquid storehouse and ground, the hot and cold amount that stores in the heat-carrying agent in the underground liquid storehouse directly or indirectly is connected in the ground based terminal operative installations through the circulation transfer pipeline and carries out cycle heat exchange.
Advantage of the present invention is: owing to adopted underground energy-accumulating liquid reservoir and the circularly geoheat exchanging underground energy-accumulating liquid reservoir that buries ground heat exchanger tube combination, making underground heat exchange that the degree of depth is set strengthens, the heat-carrying agent of underground storage and the temperature difference on the face of land are big, energy stored is also big, compare as the method at cold and hot water source with utilizing rivers, avoided thermal pollution and harmful effect that ecological environment is caused; Again owing to adopt non-digging mode to carry out the deep layer construction, burying the ground heat exchanger tube is connected between the underground liquid storehouse or between the upper and lower liquid layer in underground liquid storehouse, operating expenses and cycle reduce, compare with existing U-shaped pipeclay earth pipe laying technology, construction infection area or floor space reduce, be adapted in the big-and-middle-sized earth source heat pump energy conservation project in city construction and use, can exempt excavation construction, be suitable for large-scale promotion application the adverse effect that earth construction and environment cause; Also since the conveyance conduit of circulation transfer pipeline be arranged in the duct between underground liquid storehouse and ground, avoided being subjected in the U-shaped like pipeclay earth heater adverse effect of a large amount of transmission of heat by contacts of near surface formation soil section, system's heat exchange efficiency and stability all are greatly improved.
Reaching under identical system's soil heat exchange ability, the method that adopts circularly geoheat exchanging underground energy-accumulating liquid reservoir of the present invention and build underground liquid storehouse is buried U type pipe underground and is compared as earth source heat pump with existing, is applied in the following useful result that compared in the above big-and-middle-sized engineering of power output 50KWH:
(1) can save the floor space on the face of land more than 10 times;
(2) operating cost reduces more than 30%;
(3) adopt explosive forming and mortar wall-fixing method or non-excavation horizontally-guided probing pipe laying or push pipe method to build the construction in underground liquid storehouse, can shorten more than 60% than the U type pipeclay earth boring pipe laying construction period, construction cost reduces more than 30%;
(4) underground liquid storehouse is communicated with the Ground Application terminal installation through burying the ground heat exchanging pipe, because stored energy capacitance is big, make circularly geoheat exchanging underground energy-accumulating liquid reservoir link to each other or when being separated certain distance with the Ground Application terminal, be not subjected to the adverse effect of a large amount of transmission of heat by contact losses of near surface formation soil section, supporting mode adaptability is strong and easy to use;
When (5) carrying out the large-scale promotion replication application, system's delivery efficiency is stable, the influence that not just changed by underground rock-soil layer water content, and can be suitable for construction under overwhelming majority area and the hydrologic condition.
The invention will be further described to reach description of drawings by the following examples.
Description of drawings
Fig. 1 is the structural representation that the present invention adopts an embodiment of circularly geoheat exchanging underground energy-accumulating liquid reservoir of explosive forming and mortar Gu Bi construction;
Fig. 2 is that underground energy-accumulating liquid reservoir adopts helical disk cast curve to be communicated with the structural representation that buries the ground heat exchanger tube in the embodiment of the invention;
Fig. 3 is the underground energy-accumulating liquid reservoir of building with explosive forming and mortar Gu Bi, the embodiment plane connection diagram of burying ground heat exchanger tube and connecting pipe;
Fig. 4 is the structural representation with another embodiment of underground energy-accumulating liquid reservoir of non-excavation horizontally-guided probing pipe laying or push pipe construction.
The specific embodiment:
One of embodiment: press Fig. 1 to shown in Figure 3, circularly geoheat exchanging underground energy-accumulating liquid reservoir of the present invention is by one or above be built in underground underground liquid storehouse 1 through non-digging mode, bury ground heat exchanger tube 2, heat-carrying agent 3, circulation transfer pipeline 4, manhole 5, port lid 6, the soakaway trench 7 of preserving moisture, energy-accumulating water tank 8, liner solution bag 13 compositions such as grade, wherein, underground liquid storehouse 1 comprises demarcation strip 111, circulation transfer pipeline 4 can be divided into initial cycle transfer pipeline and secondary cycles transfer pipeline, comprises decontamination apparatus 411 among the former, temperature sensor 412, flow control valve 413, flowmeter 414, conveyance conduit 415, delivery pump 416, heat exchange unit 417.
Circularly geoheat exchanging underground energy-accumulating liquid reservoir comprises one or above underground liquid storehouse, can adopt the underground fixed-wall liquid storehouse through explosive forming.Bury the ground heat exchanger tube be connected between the upper and lower liquid layer in underground liquid storehouse or be meant between the underground liquid storehouse by be provided with between the upper and lower part that is included in shown in Figure 2 in same underground liquid the storehouse outside helical curve bury heat exchanger tube bury underground and be connected, or Fig. 1 buries the ground heat exchanger tube and buries underground and be connected with the straight line that is provided with between more than one underground liquid storehouse shown in Figure 3, wherein, individually descend separating to reduce the heat exchange convection current of levels through the demarcation strip with holes shown in Fig. 2 111 between water layer up and down of liquid storehouse.
Burying the ground heat exchanger tube is arranged near the water supply and the backwater mouth of pipe of underground energy-accumulating liquid reservoir, hot and cold fluid flow tube is the part of circulation transfer pipeline, the heat-carrying agent hot and cold fluid flow tube through feeding underground energy-accumulating liquid reservoir bottom or top respectively flows into the circulation transfer pipeline, forms the circulation conveying loop of single elementary underground heat heat exchange as shown in Figure 1.
Elementary underground heat heat exchange closed circuit comprises: bury ground heat exchanger tube, underground energy-accumulating liquid reservoir, heat-carrying agent, initial cycle transfer pipeline, circulating pump, heat exchange unit or its coupling end etc., also can connect energy-accumulating water tank 8 in the elementary underground heat heat exchange closed circuit; Secondary heat exchange closed circuit comprises: another coupling end of heat exchange unit, circulating pump, heat-carrying agent, secondary cycles transfer pipeline etc., cycle heat exchange be by the circulation of the elementary underground heat heat exchange in the elementary underground heat heat exchange closed circuit and with elementary underground heat heat exchange closed circuit mutually these two circulations of cycle heat exchange in the secondary heat exchange closed circuit of coupling realize, wherein, the heat exchange unit in above-mentioned two heat exchange closed circuits.
The described ground heat exchanger tube that buries can adopt metal tube or the plastic tube or the combination of above-mentioned material, its surface can have fin or strengthen the wing line of heat exchange, the filler of preserving moisture that absorbs water can be set between fin, the surface of metal tube can be through preservative treatments such as metallochemistry plating or metal surface plastic-coateds, in addition, also can adopt the screwed pipe etc. of macromolecular material such as polyethylene from high pressure process.
Burying the ground heat exchanger tube is the hard tube of burying underground in underground straight line probing through non-excavation horizontally-guided probing pipe laying method, but or can be through the bend pipe or the semihard pipe of crooked pipe laying moulding, the described ground heat exchanger tube that buries adopts non-digging mode such as horizontal drilling pipe mode to bury underground, the method of passing through excavation or explosive forming in the construction earlier forms underground energy-accumulating liquid reservoir, then, utilize the space of underground energy-accumulating liquid reservoir that small-sized non-excavation horizontally-guided pipe laying rig is set, finish the non-excavation pipe laying construction of burying the ground heat exchanger tube, the scope of burying its adjacent spaces A between the ground heat exchanger tube is at 1.5 to 6 meters, best adjacent spaces A is 3 to 4 meters, specifically according to soil constitution and underground humidity controlled condition decision, usually bury underground down under the humidity conditions of layer, be spaced apart 3 meters as selecting, can obtain heat exchange efficiency preferably.
Be built in underground energy-accumulating liquid reservoir through above-mentioned non-excavation method, can be interconnected and the circularly geoheat exchanging underground energy-accumulating liquid reservoir group of the same water system that is combined into through burying the ground heat exchanger tube between its underground liquid storehouse.It is apart from about the depth H of first reservoir bed below the G of the face of land that the best of underground energy-accumulating liquid reservoir is provided with the degree of depth, to obtain the comparatively ideal heat exchange humidity of ground heat exchange layer, in addition, bury in heat exchanger tube outer wall brill ground, the ground hole filler 14 of preserving moisture that absorbs water can be set, when first reservoir bed is dark, can be in burying the heat exchanger tube heat exchange zone of influence, ground can ram and press or the drilling pipe setting soakaway trench 7 of preserving moisture by certain spacing distance, regularly pouring water from ground is used to keep burying the heat transfer humidity that the ground heat exchanger tube is provided with heat exchange influence area on the degree of depth, is beneficial to improve the underground heat heat exchange efficiency of circularly geoheat exchanging underground energy-accumulating liquid reservoir.
A plurality of underground energy-accumulating liquid reservoirs have been provided referring to shown in Figure 3, bury between ground heat exchanger tube and the connecting pipe a plane connection diagram, usually, the most suitable its top or the bottom end vicinity of being separately positioned on of the water supply of underground energy-accumulating liquid reservoir and the backwater mouth of pipe, bury the ground heat exchanger tube except near the water supply of each underground energy-accumulating liquid reservoir and the backwater mouth of pipe, being provided with, also can be horizontally disposed with the heat exchange connection between the adjacent underground energy-accumulating liquid reservoir and bury the ground heat exchanger tube, a plurality of underground energy-accumulating liquid reservoirs can be formed the matrix of underground energy-accumulating liquid reservoir and arrange, owing to adopted the underground fixed-wall reservoir of explosive forming, its mutual heat exchange connection is buried the ground heat exchanger tube volume space that construction just can utilize underground energy-accumulating liquid reservoir is set, through being set, small-sized non-digging drill creeps into and push pipe or the construction of trombone slide realization pipe laying, and, the heat exchange of drawing from underground energy-accumulating liquid reservoir is communicated with buries creeping into pipe laying of heat exchanger tube of ground and can adopt rectilinear tubes to be communicated with, or the curve of curve pipe such as circular arc type or helical disk cast (Φ) connection (referring to Fig. 2), the latter can make the heat exchange capacity of soil heat exchange device increase greatly.Again referring to Fig. 3: underground energy-accumulating liquid reservoir can be connected with closed circuit after the ground conveyance conduit is done to be connected in series and connect or mixes connection earlier again.
Underground heat heat exchange closed circuit can be arranged in the underground installation room, to exempt the harmful effect to the device insulation such as building occupation of land and ground environment temperature, noise that produces when helping sound insulation by soil horizon etc. and the work of heat preservation and insulation shielding circulating pump and the heat exchange efficiency that improves heat-exchanger rig are compared with the existing underground water circularly geoheat exchanging underground energy-accumulating liquid reservoir that is arranged on ground and can be reduced the heat exchange efficiency loss to greatest extent.Circulating pump can adopt immersible pump or suction pump, when adopting immersible pump, helps reducing work noise and friction heat radiation most, helps prolonging the working life of pump and the reliability of device.Heat exchange unit comprises one or above heat exchange unit.Heat exchange unit can comprise heat exchanger, radiator, evaporimeter, condenser and heat pump, heat exchange unit can be fin or cooler such as cooling fan coil or the liquid-liquid of heat exchanger such as board-like or plate-fin or the liquid-gas heat exchanger that radiator such as heating are used, and it is selected for use according to heat-carrying agent and is used as thermal source or low-temperature receiver is decided.
The conveyance conduit 415 of circulation transfer pipeline 4 is arranged in the duct between underground liquid storehouse and ground, adopt when directly connecting, cold that stores in the heat-carrying agent in the underground liquid storehouse or the heat delivery pump 416 in circulation transfer pipeline circulation transfer pipeline is directly connected in the ground based terminal operative installations such as fan coil carries out cycle heat exchange, adopt when connecting indirectly, cold that stores in the heat-carrying agent in the underground liquid storehouse or heat are connected in the ground based terminal operative installations indirectly and carry out cycle heat exchange behind delivery pump and heat exchange unit such as heat exchanger or heat pump etc.
Described underground heat heat exchange closed circuit can be open type underground heat heat exchange closed circuit, can have the energy-accumulating water tank that stores the face of land energy in its underground heat heat exchange closed circuit.Referring to shown in Figure 1, when the elementary underground heat heat exchange closed circuit between underground energy-accumulating liquid reservoir and closed circuit adopts the underground heat heat exchange closed circuit of open type, can have the energy-accumulating water tank 8 that stores the face of land energy in the elementary underground heat heat exchange circulation closed circuit, after heat-carrying agent in the underground energy-accumulating liquid reservoir stores up the energy-accumulating water tank 8 of open type through suction pump, can the gravity effect next time stream carry out heat exchange circulation, maybe can heat-carrying agent be recharged by booster pump is set.When adopting the enclosed heat-exchanging loop between underground energy-accumulating liquid reservoir and closed circuit, can have air bleeding valve and energy storage canister in its closed circuit.
Assemble in the heat-carrying agent and store nature cold or the heat that comprises geothermal energy, described heat-carrying agent is the energy storage heat-carrying agent, comprise the fluid liquid that contains solid-state ergastic substances in liquid or the liquid or the combination of liquid and solid, wherein, liquid comprises the solution of water, emulsion, aqueous solution such as methanol aqueous solution or compound solution such as hydrated salt sodium hydrogen phosphate, solid-state ergastic substances comprises the phase-change thermal storage microcapsules, and solid can be surface treated expanded graphite phase-change material etc.Heat-carrying agent also can comprise and contains the nano-fluid that suspension sub-micro level particle comprises nano particle; as contain the fluid of suspension metal nanoparticle; in addition; metal nanoparticle can form the carboxylate protective layer of chemisorbed through processing such as carboxylates in nanoparticle surface; and it is suspended in the heat-carrying agent, to increase thermal conductance and rate of heat transfer significantly.The circulation delivery pump can adopt suction pump; when heat-carrying agent is when containing solid-state phase changes energy storage material fluid liquid and nano-fluid in liquid or the liquid; suction pump can adopt peristaltic pump, so just can not destroy wherein solid-state phase changes energy storage material and the outer field chemisorbed protective layer of nano particle.
The heat-carrying agent that is made for thermal source or low-temperature receiver in the described underground heat heat exchange closed circuit can be used as the thermal source of level eventually or low-temperature receiver or as secondary thermal source or low-temperature receiver, and further promoting with this is that the energy source of high position is made for whole stage arrangement use.Under the heating pattern, condenser switches connection underground energy-accumulating liquid reservoir cycle heat exchange loop through heat exchanger when evaporimeter and refrigeration, can heat compensation through solar thermal collector after switching under the heating pattern, therefore, also can have heating water tank in the underground heat heat exchange closed circuit.The liquid stream that is made for thermal source or low-temperature receiver in the underground heat heat exchange closed circuit can be used as the thermal source of level eventually or low-temperature receiver or as secondary thermal source or low-temperature receiver.
Under the heating pattern, the heat exchange of its heat-carrying agent circulation is that the upper aqueous layer from the underground energy-accumulating liquid reservoir upper end transfers to ground G through heated fluid stream pipe or circulating line, flows back to identical or different bottom, underground energy-accumulating liquid reservoir lower end after the heat exchange unit heat exchange on ground; Under the refrigeration mode, the heat exchange of its heat-carrying agent circulation is that the lower aqueous layer from the underground energy-accumulating liquid reservoir lower end transfers to ground G through cold fluid flow tube or circulating line, after the heat exchange unit on ground swaps out cold, flow back to the top of identical or different underground energy-accumulating liquid reservoir, constantly send underground regenerative resource.
The drug delivery hole that is provided with when keeping explosive forming between underground liquid storehouse and ground, for the ease of maintenance maintenance turnover in the future, this hole can be arranged to the about 660 millimeters manhole of diameter 5 through reaming, because of hot and cold fluid flow tube is arranged in this manhole, the floor outlet place is provided with blind bore lid 6, therefore, avoid adopting U type pipeclay earth to bury in the ground mode adverse effect with topsoil section transmission of heat by contact, can be suitable for large-scale promotion application.
Can adopt circularly geoheat exchanging underground energy-accumulating liquid reservoir except adopting one or above circularly geoheat exchanging underground energy-accumulating liquid reservoir through explosive forming, also lay with creeping into push pipe mode pipe laying as shown in Figure 4 through non-excavation level, be suitable for building diameter greater than the closed tube cavity volume formula circularly geoheat exchanging underground energy-accumulating liquid reservoir more than 600 millimeters, the caliber of closed tube cavity volume formula circularly geoheat exchanging underground energy-accumulating liquid reservoir also can be provided with the about 660 millimeters manhole of diameter and be made in the future maintenance maintenance turnover on underground liquid storehouse when increasing, described closed tube cavity volume is a metal tube, or plastic tube, or fiberglass pipe, or above-mentioned combination, or reinforced concrete prefabricated pipe, metal tube is when adopting steel pipe, and its surfaces externally and internally all can be handled through the surface anticorrosion erosion resisting coating.
Be through the underground liquid storehouse of explosive forming and mortar wall-fixing method building or through the underground liquid storehouse (referring to shown in Figure 4) of non-excavation horizontally-guided probing pipe laying or push pipe method building through the underground liquid storehouse that non-excavation method is built.The isolated protective layer that can lay the protection heat-carrying agent and hold concurrently antiseep on the solid parietal layer inner surface of the mortar in underground liquid storehouse or the interior tube-surface of the pipe laying in underground liquid storehouse or push pipe lays storage things such as can protecting heat-carrying agent or water source to the surface of the solid parietal layer of mortar and avoids the harmful effect that harmful substance is overflowed in the mortar.The surface-coated isolated protective layer that can adopt comprises the porcelain facing polyamine fat lacquer of oil resistant, water-fast non-toxic water acrylic paint or water-repellent paint or the like isolated protective layer.For the effusion that prevents harmful substance in the inner-wall material of underground liquid storehouse better and the leakage of heat-carrying agent, flexible film lining liquid storing bag can be set in the described underground liquid storehouse, as the film lining solution bag that adopts flexible material such as rubber and plastic to make, the interior shape in its size and shape and underground liquid storehouse matches, lay and change by manhole, in order to hold the heat-carrying agent that pours into, the liner liquid storage pipe can be set as inner sleeve in the perhaps underground liquid storehouse.When heat-carrying agent is gone in storage, can be according to different face of land resources, for example utilize heat-carrying agent that the ground anti-season uses in advance after natural environment temperature temperature adjustment in season in the energy storage input underground energy-accumulating liquid reservoir, for example, can send for refrigeration after electric-controlled switch valve K switches summer in the bottom water intaking from underground energy-accumulating liquid reservoir, the hot water in a large amount of summer of deposit can recharge when the upper aqueous layer of sending into underground energy-accumulating liquid reservoir is made for anti-season and utilize in the face of land energy energy-accumulating water tank 7 of its open type, opposite during winter, the hot water that can extract the underground energy-accumulating liquid reservoir upper strata is made for the heating thermal source, the frozen water in a large amount of winter of deposit in its face of land energy energy-accumulating water tank 7 recharged utilize when the bottom water layer of sending into underground energy-accumulating liquid reservoir is made for anti-season, for the more efficient use underground energy-accumulating liquid reservoir stores cold and hot resource, also can adopt the sub-liquid of a plurality of underground energy-accumulatings storehouse to carry out cold and hot classification and isolate storage, so, farthest anti-season is utilized the seasonal natural energy source resource in the face of land.
A plurality of circularly geoheat exchanging underground energy-accumulating liquid reservoirs that above-mentioned non-excavation method is built are through burying circularly geoheat exchanging underground energy-accumulating liquid reservoir or the underground storage multi-reservoir that can form same water system after the ground heat exchanger tube is interconnected.
The circularly geoheat exchanging underground energy-accumulating liquid reservoir or the underground cavity pocket storehouse of adopting the inventive method to build are suitable for large-scale promotion application; simultaneously after being equipped with the processing of various different pipe laying materials and intensity and isolated protective layer; also can be suitable for use as the circularly geoheat exchanging underground energy-accumulating liquid reservoir of various large and medium-sized scales, underground water storage storehouse, oil cellar, underground waterproof warehouse or storage vault, ammunition depot or the like, and the underground waterproof that can be used for highly polluted material is equally buried processing etc.
Claims (10)
1. circularly geoheat exchanging underground energy-accumulating liquid reservoir, it is characterized in that, by one or above be built in underground underground liquid storehouse, heat-carrying agent, bury ground heat exchanger tube, circulation transfer pipeline etc. and form through non-digging mode, assemble in the heat-carrying agent in the underground liquid storehouse and store nature cold or the heat that comprises geothermal energy, bury the ground heat exchanger tube and be connected between the underground liquid storehouse or between the upper and lower liquid layer in underground liquid storehouse, the conveyance conduit of circulation transfer pipeline is arranged in the duct between underground liquid storehouse and ground.
2. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1, it is characterized in that, described heat-carrying agent comprises the fluid liquid that contains solid-state ergastic substances in liquid or the liquid or the combination of liquid and solid, wherein, liquid comprises water, emulsion, aqueous solution or compound solution.
3. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1 is characterized in that, described heat-carrying agent also can comprise and contains the nano-fluid that suspension sub-micro level particle comprises nano particle.
4. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1; it is characterized in that; can lay on the pipe laying in solid parietal layer inner surface of the mortar in described underground liquid storehouse or underground liquid storehouse or the interior tube-surface of push pipe in the antiseep isolated protective layer of heat-carrying agent or the underground liquid storehouse fexible film liner liquid storing bag can be set, perhaps underground liquid can be provided with the liner liquid storage pipe in the storehouse.
5. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1, it is characterized in that, described underground liquid storehouse of building through non-excavation method is through the underground liquid storehouse of explosive forming and the solid wall method building of mortar or drills the underground liquid storehouse of pipe laying or push bench process building through non-excavation horizontally-guided
6. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 5 is characterized in that, it is the degree of depth apart from first reservoir bed below the face of land that the best in described underground liquid storehouse is provided with the degree of depth.
7. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1, it is characterized in that, but the described ground heat exchanger tube that buries is bend pipe or semihard pipe or the hard tube of burying underground in underground straight line probing through non-excavation horizontally-guided probing pipe laying method, but or drill the pipe laying method through non-excavation horizontally-guided and drill bend pipe or the semihard pipe of burying underground in underground brake forming
8. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 7 is characterized in that, the described adjacent scope of interval A of burying underground of ground heat exchanger tube of burying is at 1.5 to 6 meters.
9. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1, it is characterized in that, described material of burying the ground heat exchanger tube can adopt metal or high molecule plastic or glass fibre or the combination of above-mentioned material made, the surface of burying the ground heat exchanger tube can have fin or the wing line that strengthens heat exchange, and the filler of preserving moisture that absorbs water can be set between described fin.
10. circularly geoheat exchanging underground energy-accumulating liquid reservoir according to claim 1, it is characterized in that, also have delivery pump in the circulation transfer pipeline in the described duct that is arranged between underground liquid storehouse and ground, the hot and cold amount that stores in the heat-carrying agent in the underground liquid storehouse directly or indirectly is connected in the ground based terminal operative installations through the circulation transfer pipeline and carries out cycle heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101430375A CN101173828A (en) | 2006-10-30 | 2006-10-30 | Circulating geothermal heat exchange type underground energy accumulation liquid warehouse |
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| CNA2006101430375A CN101173828A (en) | 2006-10-30 | 2006-10-30 | Circulating geothermal heat exchange type underground energy accumulation liquid warehouse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847748B (en) * | 2005-03-28 | 2010-12-08 | 潘戈 | Geoheat circulating and exchanging underground energy storing liquid reservoir |
| CN102418917A (en) * | 2011-12-08 | 2012-04-18 | 江苏太阳宝新能源有限公司 | Solar photo-thermal power generation energy storage tank and steam generator optimized structure |
| CN108731300A (en) * | 2017-04-24 | 2018-11-02 | 苏州唫道鼎保温科技有限公司 | A kind of building comprehensive energy feed system |
-
2006
- 2006-10-30 CN CNA2006101430375A patent/CN101173828A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847748B (en) * | 2005-03-28 | 2010-12-08 | 潘戈 | Geoheat circulating and exchanging underground energy storing liquid reservoir |
| CN102418917A (en) * | 2011-12-08 | 2012-04-18 | 江苏太阳宝新能源有限公司 | Solar photo-thermal power generation energy storage tank and steam generator optimized structure |
| CN108731300A (en) * | 2017-04-24 | 2018-11-02 | 苏州唫道鼎保温科技有限公司 | A kind of building comprehensive energy feed system |
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