CN100494828C - Sea water ground energy heat pump system and method for extracting sea water ground energy - Google Patents
Sea water ground energy heat pump system and method for extracting sea water ground energy Download PDFInfo
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- CN100494828C CN100494828C CNB2007101770225A CN200710177022A CN100494828C CN 100494828 C CN100494828 C CN 100494828C CN B2007101770225 A CNB2007101770225 A CN B2007101770225A CN 200710177022 A CN200710177022 A CN 200710177022A CN 100494828 C CN100494828 C CN 100494828C
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V50/00—Use of heat from natural sources, e.g. from the sea
Abstract
The invention relates to a seawater geothermal energy heat pump system and the method thereof for extracting seawater geothermal energy. The system comprises a geothermal energy collecting device, a closed type thermal transmission loop, a heat pump and an output device which are connected in series in the mode of the coupled heat transfer; wherein, the geothermal energy collecting device comprises a heat-collecting well pipe built in the sand beach where the ocean tide happens and a sealing well lid is arranged at the upper end of the heat-collecting well pipe; a submersible pump arranged in the heat-collecting well pipe is extended out from the well lid so as to be communicated with one end of an energy output coil of a first heat exchanger while the other end of the energy output coil drives the seawater after being put into the heat exchange to flow back to the sea. The method is that the heat-collecting wells and the dams are built in the sand beach zone between the average low tide line of the ocean tide and the utmost upper boundary line that the wave effects can reach. The invention is characterized in that the natural environment-friendly geothermal energy in the seawater is extracted so as to be respectively used for the heating and refrigeration, thus creating the benefits for the human beings. The system has no complicated deep-level underground hydraulic construction, has low cost, low running cost and high efficiency and is safe and reliable.
Description
Technical field
The present invention relates to a kind of generation of the non-combustion heat-geothermal energy resources and utilize technology, is the harvester of design for seawater underground heat specifically, utilizes the method for the sea water ground energy heat pump system with air-conditioning effect and the extraction sea water ground energy of formations such as heat pump, radiator.
Background technology
Utilizing this natural geothermal energy resources of seawater is a problem with great economic benefit for mankind's service.On April 5th, 2004, CN1755294A disclosed the Chinese patent of the inventor " low grade energy extraction system for river and lake ", this system discloses the electricity energy harvester that connects with coupled and heat-exchange successively, the first enclosed heat transfer circuit, heat pump, second enclosed heat transfer circuit and the heat abstractor, between the first and second enclosed heat transfer circuit, be provided with 2 groups of totally 8 control valves, make heat abstractor obtain high temperature heat as required from heat pump condenser, or obtain cold gas from evaporator with heat pump, form a geothermal air conditioning system.Wherein heat pump is to be interconnected successively by evaporimeter, compressor, condenser and expansion valve to constitute, and the coupling of the energy of the evaporimeter and first enclosed heat transfer circuit output coil pipe, the energy input coil pipe coupling of the condenser and the second enclosed heat transfer circuit.
Wherein electricity energy harvester comprises the loop that heat exchanger and water pump that places heat-collection well and heat collector etc. constitute, and heat-collection well is installed in the land; Heat collector comprises siphon pipe, drainpipe and vacuum system.This system can only extract the seawater of low temperature from heat-collection well, and the just essential way that adopts the deep-sea water intaking of the seawater that will extract higher temperature needs building deep-sea Underwater Engineering like this, obviously involves great expense, and operating cost is high again, thereby has limited the development and utilization of sea water ground energy technology.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of thermal efficiency height, safe and reliable, cost is low, operating cost is low sea water ground energy heat pump system.
Another object of the present invention provides a kind of method of extracting sea water ground energy, and the exchange heat at marine stream and sandy beach when utilizing rising tide, ebb tide is extracted underground heat, guarantees the normal operation of ground energy heat pump system effectively.
Sea water ground energy heat pump system of the present invention comprises the earth energy collector, enclosed heat transfer circuit, heat pump and the output device that are serially connected successively; The enclosed heat transfer circuit is connected in series successively by first heat exchanger energy input coil pipe, first circulating pump, B control valve, second heat exchanger energy output coil pipe and A control valve and forms; Output device is connected in series successively by the 3rd heat exchanger energy input coil pipe, I control valve, H control valve, second circulating pump, radiator and G control valve and forms; Import between the link of coil pipe and G control valve at the link of first heat exchanger energy input coil pipe and A control valve and the 3rd heat exchanger energy and connect the C control valve, between the link of the link of second heat exchanger energy output coil pipe and A control valve and radiator and G control valve and connect the D control valve, between the link of the link of B control valve and second heat exchanger energy output coil pipe and the H control valve and second circulating pump and connect the E control valve, between the link of the link of first circulating pump and B control valve and I control valve and H control valve and connect the F control valve, wherein earth energy collector comprises the thermal-arrest well casing of building in the sandy beach that tide takes place, thermal-arrest well casing upper end is provided with sealed well lid, place immersible pump in it to pass well lid by pipeline and be communicated with first heat exchanger energy output coil pipe, one end, energy is exported the seawater backflow sea of the coil pipe other end after with heat exchange.
Sea water ground energy heat pump system of the present invention wherein is provided with gravel layer at heat-collection well infratubal port place.
Sea water ground energy heat pump system of the present invention is wherein at thermal-arrest well casing top surrounding buildings dykes and dams.
The present invention extracts the method for sea water ground energy, comprising the following step:
1) goes up the position that the building earth energy collector is selected in area, sandy beach between the boundary line most what mean low tide line to the wave action of tide can reach;
2) well bore on sand bed, its degree of depth will be positioned on the following sand bed of ebb tide water level, and the graveling layer is filled out in its bottom;
3) scene is constructed or fluid-tight well casing around prefabricated is installed in the wellhole, the well casing upper port is positioned on the rising tide water level, and adds the sealed well lid, and its lower port is stood on the gravel layer;
4) well casing is securely fixed on the sandy beach;
5) immersible pump is installed to the bottom of well casing, and the pipeline that will link to each other with the immersible pump delivery port passes well lid and is installed in ground heat exchanger energy output coil pipe and is communicated with the seawater backflow sea after the heat exchange;
6) adopt heat exchange method, and the heat energy that utilizes heat pump to extract the output of energy output coil pipe uses for the user.
The present invention extracts the method for sea water ground energy, wherein in step 4), at the surrounding buildings dykes and dams of well casing.
The present invention extracts the method for sea water ground energy, and wherein the well casing in step 1)～step 3) building is above the indentation part of bottom, sandy beach lithosphere.
Sea water ground energy heat pump system of the present invention and the method for extracting sea water ground energy are to utilize the heat energy in the seawater after flood tide and heat exchange is carried out at marine stream and sandy beach during ebb tide, promptly the ocean temperature of extracting in the winter time is higher than the sea temperature, the ocean temperature that extract summer is lower than the sea temperature, the design-build sea water ground energy heat pump system, extract this wide natural environmental-protective ground energy resource in the seawater, be respectively applied for and heat and freeze, for the mankind benefit.This system does not have complicated deep-level underground hydraulic worker building, and cost is low, operating cost is low, and the efficient height is safe and reliable.
Description of drawings
Fig. 1 is a sea water ground energy heat pump system structural principle schematic diagram of the present invention.
The specific embodiment
As seen from Figure 1, sea water ground energy heat pump system of the present invention comprises earth energy collector, enclosed heat transfer circuit, heat pump and the output device that is serially connected successively; The enclosed heat transfer circuit comprises that being connected in series connection with pipeline successively by first heat exchanger energy input coil pipe 3, first circulating pump 7, B control valve 6, second heat exchanger energy output coil pipe 5 and A control valve 4 constitutes; Heat pump 1 comprises by second heat exchanger energy input coil pipe 13 (being evaporimeter), compressor 14, the 3rd heat exchanger energy output coil pipe 16 (being condenser) and expansion valve 15 successively with pipeline serial connection connection formation, and energy input coil pipe 13 intercouples with energy output coil pipe 5 and forms second heat exchanger, and energy output coil pipe 16 intercouples with energy input coil pipe 17 and forms the 3rd heat exchanger.Output device comprises that being connected in series connection with pipeline successively by the 3rd heat exchanger energy output coil pipe 17, I control valve 26, H control valve 23, second circulating pump 25, radiator 2 and G control valve 22 constitutes; I control valve 26 is connected between the outlet and H control valve 23 of the 3rd heat exchanger energy output coil pipe 17; Second circulating pump 25 is connected between H control valve 23 and the radiator 2; Import between the link of coil pipe 17 and G control valve 22 at the link of first heat exchanger energy input coil pipe 3 and A control valve 4 and the 3rd heat exchanger energy and connect C control valve 18, between the link of the link of second heat exchanger energy output coil pipe 5 and A control valve 4 and radiator 2 and G control valve 22 and connect D control valve 19, between the link of the link of B control valve 6 and second heat exchanger energy output coil pipe 5 and the H control valve 23 and second circulating pump 25 and connect E control valve 20, between the link of the link of first circulating pump 7 and B control valve 6 and I control valve 26 and H control valve 23 and connect F control valve 21, its position knows that with oneself CN1755294A in the technology " low grade energy extraction system for river and lake " is identical as shown in Figure 1.Energy output coil pipe 8 constitutes first heat exchanger with 3 couplings of energy input coil pipe.Wherein harvester comprises the thermal-arrest well casing 10 of building in the sandy beach that tide takes place, its upper port is positioned on the rising tide water level, and add sealed well lid 24, tube wall stops in the seawater inflow pipe, its lower port is stood on the gravel layer 12, and construct dam body 9 around the top, heat-collection well is securely fixed on the sandy beach.The immersible pump 11 that places heat-collection well passes well lid 24 by pipeline and is communicated with first heat exchanger energy output coil pipe, 8 one ends that are installed in ground sea water ground energy heat pump system, and energy is exported the seawater backflow sea after coil pipe 8 other ends make heat exchange.
Facts have proved that the seawater in the sandy beach is along with flood tide, ebb tide and flowing.Marine stream has heated the sandy beach in the summer sandy beach, has reduced the ocean temperature that entering in the well; Marine stream has absorbed the heat at sandy beach again in the winter sandy beach, has improved the ocean temperature that enters in the well, and tide impels seawater and sandy beach to carry out exchange heat.The present invention utilizes this principle exactly, design building sea water ground energy harvester, enclosed heat transfer circuit, heat pump and and output device, constitute a geothermal air conditioning system that utilizes sea water ground energy, reach the purpose of heat supply or cooling, when needing, by installing some auxiliary equipment additional, can also provide life hot water and drinking water etc. for people.
The operation principle of sea water ground energy heat pump system harvester of the present invention: go up heat-collection well in the sandy beach regional architecture earth energy collector between the boundary line most what mean low tide line to the wave action of tide can reach, the sandy beach is submerged when that is to say this region high tide, and surface in the sandy beach at ebb tide.The bottom of this well is connected with seawater by sandy beach and gravel layer, and the water level in the well is consistent with seawater, promptly at the incoming tide, water level raises in the well, water level reduces during ebb tide, and the seawater that is to say extraction is not directly to take from the sea, but marine stream is carried out seawater after the heat exchange by the sandy beach.Here seawater only is the medium as a kind of heat-obtaining, and exchange heat has been carried out at during by the sandy beach and sandy beach, and entering in the well is rising or the seawater that has reduced temperature.In the winter time, the surface ocean temperature is low, but because the tide is flowing and ebbing, marine stream and sandy beach carry out having absorbed heat after the heat exchange, so enter from the bottom the heat-collection well is the seawater of rising temperature, constantly be extracted into heat exchanger and carry out heat exchange, rise to terminal release, reach the Winter heat supply purpose by heat pump by water pump.In summer, surperficial ocean temperature height, seawater is lowered the temperature by the sandy beach, and the more heat that discharges from heat pump condenser that absorbs makes heat exchanger effectiveness higher, thereby the operating efficiency of heat pump is improved, and reaches the purpose of freezing summer.Seawater returns the sea after by the heat exchanger heat exchange.
The course of work of geothermal air conditioning system is described in " low grade energy extraction system for river and lake " patent of invention: in the winter time, A, B, G, H, I control valve 4,6,22,23,26 open, C, D, E, F control valve 18,19,20,21 close, constantly extract with the sandy beach by immersible pump 11 and to carry out having absorbed after the heat exchange heat, enter the seawater of the rising temperature the heat-collection well from the bottom, energy output coil pipe 8 release heat by first heat exchanger, heat is passed to the energy input coil pipe 13 (being the heat pump evaporimeter) of second heat exchanger through the enclosed heat transfer circuit, discharge by passing to radiator 2 through the output coil pipe 16 (being the heat pump condenser) of the 3rd heat exchanger again after the heat pump lifting, can be to indoor heating.
In summer, the ocean temperature height, after heat exchange was carried out at the tide is flowing and ebbing and sandy beach, temperature reduced, and immersible pump 11 extracts the seawater after the cooling, closes A, B, G, H control valve 4,6,22,23 like this, opens C, D, E, F, I control valve 18,19,20,21,26.First heat exchanger energy input coil pipe 3 absorbs the heat that the 3rd heat exchanger energy output coil pipe 16 (condenser) discharges indirectly by the 3rd heat exchanger energy input coil pipe 17, sends the sea back to for the energy output coil pipe 8 of first heat exchanger its exchange; Under 25 effects of second circulating pump, be sent to radiator 2 to indoor release cold air and export the cryogenic liquid that flows in the coil pipe 5, reach the purpose of refrigeration through E control valve 20 with the second heat exchanger energy of second heat exchanger energy input coil pipe 13 (evaporimeter) coupling.
Because seawater only is about 15 ℃ after reducing by the sandy beach, therefore the most of the time in summer need not to start heat pump, only need open F, H, G, C control valve 21,23,22,18, closes other control valve, start first, second circulating pump, by the direct cooling of first heat exchanger.
Claims (6)
1, a kind of sea water ground energy heat pump system comprises the earth energy collector, enclosed heat transfer circuit, heat pump and the output device that are serially connected successively; Described enclosed heat transfer circuit is connected in series successively by first heat exchanger energy input coil pipe (3), first circulating pump (7), B control valve (6), second heat exchanger energy output coil pipe (5) and A control valve (4) and forms; Described output device is connected in series successively by the 3rd heat exchanger energy input coil pipe (17), I control valve (26), H control valve (23), second circulating pump (25), radiator (2) and G control valve (22) and forms; Between the link that the link and described the 3rd heat exchanger energy of described first heat exchanger energy input coil pipe (3) and A control valve (4) are imported coil pipe (17) and G control valve (22) and connect C control valve (18), between the link of the link of described second heat exchanger energy output coil pipe (5) and A control valve (4) and described radiator (2) and G control valve (22) and connect D control valve (19), between the link of the link of described B control valve (6) and second heat exchanger energy output coil pipe (5) and described H control valve (23) and second circulating pump (25) and connect E control valve (20), between the link of the link of described first circulating pump (7) and B control valve (6) and described I control valve (26) and H control valve (23) and connect F control valve (21), it is characterized in that described earth energy collector comprises the thermal-arrest well casing (10) of building in the sandy beach that tide takes place, described thermal-arrest well casing (10) upper end is provided with sealed well lid (24), place immersible pump (11) in it to pass described well lid (24) by pipeline and be communicated with described first heat exchanger energy output coil pipe (8) one ends, described energy is exported the seawater backflow sea of coil pipe (8) other end after with heat exchange.
2,, it is characterized in that being provided with gravel layer (12) at described thermal-arrest well casing (10) lower port place according to the described sea water ground energy heat pump system of claim 1.
3, according to claim 1 or 2 described sea water ground energy heat pump systems, it is characterized in that at described thermal-arrest well casing (10) top surrounding buildings dykes and dams (9).
4, a kind of method of extracting sea water ground energy is characterized in that comprising the following steps:
1) goes up the position that the building earth energy collector is selected in area, sandy beach between the boundary line most what mean low tide line to the wave action of tide can reach;
2) well bore on sand bed, its degree of depth will be positioned on the following sand bed of ebb tide water level, and the graveling layer is filled out in its bottom;
3) scene is constructed or permeable well casing around prefabricated is installed in the wellhole, the well casing upper port is positioned on the rising tide water level, and adds the sealed well lid, and its lower port is stood on the gravel layer;
4) well casing is securely fixed on the sandy beach;
5) immersible pump is installed to the bottom of well casing, and the pipeline that will link to each other with the immersible pump delivery port passes well lid and is installed in ground first heat exchanger energy output coil pipe and is communicated with the seawater backflow sea after the heat exchange;
6) adopt heat exchange method, and the heat energy that utilizes heat pump to extract the output of energy output coil pipe uses for the user.
5, the method for extraction sea water ground energy according to claim 4 is characterized in that in step 4), at the surrounding buildings dykes and dams of well casing.
6, the method for extraction sea water ground energy according to claim 5 is characterized in that well casing building in step 1)～step 3) is above the indentation part of bottom, sandy beach lithosphere.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101770225A CN100494828C (en) | 2007-11-08 | 2007-11-08 | Sea water ground energy heat pump system and method for extracting sea water ground energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101770225A CN100494828C (en) | 2007-11-08 | 2007-11-08 | Sea water ground energy heat pump system and method for extracting sea water ground energy |
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| CN101158523A CN101158523A (en) | 2008-04-09 |
| CN100494828C true CN100494828C (en) | 2009-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106225320B (en) * | 2016-08-30 | 2019-08-02 | 湖南中大经纬地热开发科技有限公司 | The terrestrial heat utilization system of flood bank adjacent domain |
| CN109595835B (en) * | 2018-12-01 | 2020-05-22 | 湖南达道新能源开发有限公司 | Wellhead device for geothermal energy |
| CN115990572B (en) * | 2023-03-24 | 2023-05-12 | 青州市黄楼永利矿沙机械制造有限公司 | Drilling and jetting siphon sand screening device |
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Effective date of registration: 20201228 Address after: 100093, Beijing, Haidian District apricot Road No. 102 Patentee after: Ruicheng Technology Development Group Ltd. Address before: 100093, Beijing, Haidian District apricot Road No. 102 Patentee before: Xu Shengheng |