CN1840984A - Buried reflux casing type circulating geothermal heat exchanger and use thereof - Google Patents
Buried reflux casing type circulating geothermal heat exchanger and use thereof Download PDFInfo
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- CN1840984A CN1840984A CN 200510024685 CN200510024685A CN1840984A CN 1840984 A CN1840984 A CN 1840984A CN 200510024685 CN200510024685 CN 200510024685 CN 200510024685 A CN200510024685 A CN 200510024685A CN 1840984 A CN1840984 A CN 1840984A
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- pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses an underground reflux tube circulating geothermal energy exchanging device, which comprises the following parts: underground pipe, heat exchanging unit, circulating pump, heat-loading dielectric and circulating loop, wherein the underground pipe is underground reflux housing pipe of inner pipe in the outer pipe; the geothermal energy exchanging circulating loop provides heat or cold source for dielectric, which forms underground circulation loop through reflux pipe bottom, interlayer of inner and outer pipe or underground circulation.
Description
Technical field
The invention belongs to air conditioner energy saving and field of renewable energy resource utilization, especially relate to a kind of buried reflux casing type circulating geothermal heat exchanger technology and purposes of soil buried tube type.
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 that a kind of underground shallow-layer ground that utilizes can, but comprise underground water, the not only heat supply of earth or surface water etc. but also the high-effective building energy-saving air-conditioning system that can freeze, by importing a spot of high-grade electric energy, can realize of the transfer of low temperature potential energy to the high temperature potential energy, wherein, water resource heat pump is to have utilized earth surface or shallow-layer water source as Cooling and Heat Source, carries out the heating air-conditioner system of power conversion, deservedly becomes a kind of form of regenerative resource.Water source heat pump technology utilizes in the middle of the process of 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 heat pump is another mode of earth-source hot-pump system, realizes the heat exchange of heat-carrying agent and rock earth by burying the soil heat exchange device underground, and as in the heat supplying process in the winter time, heat-carrying agent takes heat to indoor by system from underground collection heat again; System's antikinesis when freeze summer promptly from the indoor heat of taking away, is delivered to heat in the underground ground by system again.Therefore, soil buried tube type heat pump has kept groundwater heat pump to utilize the advantage of the earth as Cooling and Heat Source, do not need simultaneously groundwater abstraction as the medium that conducts heat again, it is a kind of sustainable development building energy conservation new technology with great development future, underground pipe formula circulating geothermal heat exchanger can be used as a front end coupling unit of soil buried tube type heat pump, usually, be divided into by burying ground heat exchanger pipe laying mode: horizontal coiled pipe, perpendicularly buried pipe and spiral coil, this earth-source hot-pump system to the requirement of the material of soil heat exchange device and geologic structure than higher, wherein, the horizontal coiled pipe floor space is bigger, need excavation, therefore pipe laying depth is shallow, is subjected to face of land temperature, factor affecting such as solar radiation are bigger, and the stability of a system is low; Perpendicularly buried pipe is subjected to ground surface environment temperature effect little, but pipe laying is dark, hole drill pick expense and associated materials expense increased accordingly when employing was vertically mounted on high pressure-bearing vinyon perpendicularly buried pipe among vertical shaft or the sleeve pipe with the U-shaped tubulose, the spiral coil floor space is little, invest less relatively, but need excavation, the heat exchange effect is between between the above two, not as perpendicularly buried pipe, because the investment of soil buried tube type heat pump wants high than other earth source heat pump mode, so this system generally is only applicable to the smaller inhabitation class single building of area, in heavy construction, use difficulty relatively.
Summary of the invention
The object of the present invention is to provide a kind of buried reflux casing type circulating geothermal heat exchanger that is used for air conditioner energy saving, make it faster, simpler and easy than existing U type pipe perpendicularly buried pipe technology construction, requirement to material and construction geology structure decreases, operating expenses will reduce than prior art with cost, use accommodation and function ratio prior art to enlarge, simultaneously, circulating geothermal heat exchanger can not tie up too much land area.
The present invention is achieved by the following technical solutions, adopt a kind of buried reflux casing type circulating geothermal heat exchanger, form underground heat heat exchange closed circuit by underground pipe, heat exchange unit, circulating pump, heat-carrying agent, circulation line etc., it is characterized in that, described underground pipe be in the outer tube fixing have interior pipe bury ground backflow sleeve pipe, the heat-carrying agent that is made for thermal source or low-temperature receiver in the underground heat heat exchange closed circuit through the interior pipe of underground pipe or inner and outer pipes interlayer flow into from ground bury ground backflow sleeve bottom after, be back to ground through inner and outer pipes interlayer or interior pipe again and form underground reflux cycle.The fixing of interior pipe in outer tube of described underground pipe is through holding frame or through the fixing of the clamping circular ring plate of band liquid opening etc.Described underground pipe can adopt through the antiseptic metal tube of metallochemistry plating or surface metal plastic-coated and make.Described heat-carrying agent comprises and contains solid-state phase changes energy storage material fluid liquid in liquid and the liquid.But the liquid water of described heat-carrying agent or mineral solution or emulsion.Described underground pipe is single or many, but the latter's layout line style or matrix type etc., and its best adjacent spaces is 4 to 6 meters.Described underground pipe outer wall bores in the ground hole can be provided with the filler of preserving moisture that absorbs water, and between underground pipe the soakaway trench of preserving moisture can be set.Can have heating water tank and energy-accumulating water tank in the described underground heat heat exchange closed circuit.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.
Utilize a purposes of above-mentioned buried reflux casing type circulating geothermal heat exchanger, it is characterized in that the pile of double as surface structures in the perpendicular soil that can be arranged on when putting within the ground construction area of the underground pipe of described buried reflux casing type circulating geothermal heat exchanger.
Advantage of the present invention is: since adopt underground pipe be in the outer tube fixing have interior pipe bury the backflow sleeve pipe, make it to be adapted to pass through the less single tube of diameter and vertically creep into or ram the rapid construction that modes such as pressing pipe laying is buried the ground heat exchanger, thereby, can exempt and excavate pipe laying, construction volume reduces, and compare with corresponding U type pipe perpendicularly buried pipe prior art, the pipe laying construction all has bigger reduction to the material of soil heat exchange device and the requirement of construction geology structure, the also corresponding reduction of operating expenses and associated materials expense, and the engineering accommodation of circulating geothermal heat exchanger obtains enlarging.In addition, can be arranged on the auxiliary pile that the surface structures area is interior or double as is built when putting but adopt underground pipe to erect, thereby can reduce the building pile foundation cost, the big-and-middle-sized circulating geothermal heat exchanger of exempting considerable part simultaneously was because of tying up the application restriction of multiple footprint.
Description of drawings
Fig. 1 is the underground heat heat exchange closed circuit connection diagram of one embodiment of the present of invention;
Fig. 2 is that the inner and outer pipe that buries backflow sleeve pipe in ground in the embodiment of the invention is provided with structural representation;
Fig. 3 is the inner and outer pipe that buries ground backflow sleeve pipe in the embodiment of the invention and join the structural representation that header is connected;
Fig. 4 is the top plan view of Fig. 2;
Fig. 5 be Fig. 3 top plan view;
Burial place and interconnective schematic diagram when Fig. 6 is the double auxiliary pile of doing building of the reflux casing type underground pipe of the embodiment of the invention.
The specific embodiment:
By shown in Figure 1, one of buried reflux casing type circulating geothermal heat exchanger embodiment of the present invention is made up of underground pipe 1, heat exchange unit 2, circulating pump 3, circulation line 4, preserve moisture soakaway trench 5 and heat-carrying agent etc.Wherein, underground pipe adopts in as shown in Figure 2 its outer tube burying of interior pipe arranged backflow sleeve pipe of fixing, its structure comprises interior pipe 111, outer tube 112, fixing-holding rack 113 and the vertex of a cone 114 that is welded to connect with outer tube, in addition, also interconnect between underground pipe, comprise decontamination apparatus 411, flow control valve 412, temperature sensor 413, flowmeter 414 and accumulator 415 etc. in the circulation line 4 through connection header 115.Underground pipe, heat exchange unit, circulating pump, circulation line etc. are formed the underground heat heat exchange closed circuit of enclosed.
By shown in Figure 3, the Guan Yulian header is welded to connect in can adopting between underground pipe and connection header, outer tube can be with connection header split manufacturing after be welded to connect or the integrally manufactured threeway end that becomes as shown in the figure, be threaded or interconnect through tube connector again between the threeway end of each underground pipe through quick-release coupling and tube connector formation.The heat-carrying agent that is made for thermal source or low-temperature receiver in the underground heat heat exchange closed circuit through the interior pipe of underground pipe or inner and outer pipes interlayer flow into from ground bury ground backflow sleeve bottom after, be back to ground through inner and outer pipes interlayer or interior pipe again and form underground reflux cycle; The fixing of interior pipe in outer tube of underground pipe be through holding frame or through the fixing of the clamping circular ring plate of band heat-carrying agent liquid opening etc., as: the holding frame of the axle hung type that fixing-holding rack is shown in Figure 4 or the axle sleeve type clamping circular ring plate of band heat-carrying agent liquid shown in Figure 5 stream annular flow through hole or utilize the tube wall of pipes such as connection remittance or other holding structures that the end wall of pipe carries out clamping.Underground pipe can be arranged to perpendicular put Guan Jing and squeeze into the underground square type underground pipe matrix of forming by many, and underground pipe can adopt through the antiseptic metal tube of metallochemistry plating or surface metal plastic-coated and make.
Heat-carrying agent comprises and contains solid-state phase changes energy storage material fluid liquid in liquid and the liquid.But the liquid water of described heat-carrying agent or mineral solution or emulsion.Underground pipe also can be single except many, when adopting many underground pipes referring to Fig. 1 and Fig. 6, between its each underground pipe on the ground connection can be serial connection or form packet concatenation after again and the mixing that connects connect, in addition also can be and connect, its bury underground distribution can according to the factors such as ground shape of building arbitrarily combination design.
When adopting many underground pipes to connect, it arranges line style or matrix type (referring to Fig. 6) etc., and its best adjacent spaces A is 4 to 6 meters.The underground pipe outer wall bores in the ground hole can be provided with the filler of preserving moisture that absorbs water, between underground pipe the soakaway trench 5 of preserving moisture can be set, connect through its connecting pipe 511 and to be made for after drawing from taking over mouthful to the regular water filling in the soil heat exchange zone of influence, and through the soil moisture monitoring with maintenance good heat transfer humidity.Also can be in elementary underground heat heat exchange closed circuit and the secondary heat-exchanging loop that is connected another coupling end of heat exchange unit with the boiler and the energy-accumulating water tank that add supplementary energies such as solar energy, so that heat-carrying agent that will be after heat exchange is further through heating water tank heat temperature raising or energy storage, use for its terminal installation, in addition, also can be in the certain hour section, the heat that will carry out behind the cycle heat exchange stores with energy-accumulating water tank, for using in another time period, plays the regulating action of peak load shifting.
As shown in Figure 1, heat exchange unit has adopted the condenser or the evaporimeter of air-conditioning unit, heat exchange unit also 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 heat-carrying agent 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, and further promoting with this is that the energy source of high position is made for whole stage arrangement use.
Underground pipe is perpendicular puts heat exchange best results when burying underground, but also can adopt tilting creep into or ram to press bury underground, for example: contain difficultly when creeping into or ramming the hard rock soil layer of pressing construction when running into the depth of burying, can partly or entirely select to adopt the tilting processing of burying underground.The heat exchange closed circuit can also be the closed circuit of open type except the closed circuit of enclosed, in the pipeline in closed cycle loop with or without pressure.
Another embodiment of buried reflux casing type circulating geothermal heat exchanger of the present invention is: utilize the underground pipe of reflux casing type circulating geothermal heat exchanger to constitute another purposes of building pile or auxiliary pile, by shown in Figure 6, building lot 6 comprises the pile foundation 611 and the wall base 612, when perpendicular the putting of employing reflux casing type underground pipe, it can be arranged in the soil in the surface structures area, to make full use of the soil space below the ground, underground pipe after installing and ground watered be integral, make it to become building pile or auxiliary building pile, expose the part of ground basal plane and do connection remittance connection, B point as shown in Figure 6 is for connecting the outlet end of underground pipe in the circulating geothermal heat exchanger, the C point is the liquid feeding end of underground pipe, the reflux casing type underground pipe also can doublely be done the auxiliary pile of building at this, thereby, this its buries the ground using method can exempt the application restriction of occupying too much land area in quite a few big-and-middle-sized air conditioner energy saving engineering because of circulating geothermal heat exchanger, helps making full use of valuable soil construction area.
Claims (10)
1. buried reflux casing type circulating geothermal heat exchanger, form underground heat heat exchange closed circuit by underground pipe, heat exchange unit, circulating pump, heat-carrying agent, circulation line etc., it is characterized in that, described underground pipe be in the outer tube fixing have interior pipe bury ground backflow sleeve pipe, the heat-carrying agent that is made for thermal source or low-temperature receiver in the underground heat heat exchange closed circuit through the interior pipe of underground pipe or inner and outer pipes interlayer flow into from ground bury ground backflow sleeve bottom after, be back to ground through inner and outer pipes interlayer or interior pipe again and form underground reflux cycle.
2. buried reflux casing type circulating geothermal heat exchanger according to claim 1 is characterized in that, the fixing of interior pipe in outer tube of described underground pipe is through holding frame or through the fixing of the clamping circular ring plate of band liquid opening etc.
3. buried reflux casing type circulating geothermal heat exchanger according to claim 1 is characterized in that, described underground pipe can adopt through the antiseptic metal tube of metallochemistry plating or surface metal plastic-coated and make.
4. buried reflux casing type circulating geothermal heat exchanger according to claim 1 is characterized in that, described heat-carrying agent comprises and contains solid-state phase changes energy storage material fluid liquid in liquid and the liquid.
5. according to claim 1 or 4 described buried reflux casing type circulating geothermal heat exchangers, it is characterized in that, but the liquid water of described heat-carrying agent or mineral solution or emulsion.
6. according to any described buried reflux casing type circulating geothermal heat exchanger in the claim 1 to 3, it is characterized in that, described underground pipe is single or many, but the latter's layout line style or matrix type etc., and its best adjacent spaces is 4 to 6 meters.
7. according to any described buried reflux casing type circulating geothermal heat exchanger in claim 1 or 4, it is characterized in that described underground pipe outer wall bores in the ground hole can be provided with the filler of preserving moisture that absorbs water, and between underground pipe the soakaway trench of preserving moisture can be set.
8. buried reflux casing type circulating geothermal heat exchanger according to claim 1 is characterized in that, can have heating water tank and energy-accumulating water tank in the described underground heat heat exchange closed circuit.
9. according to claim 1 or 4 described buried reflux casing type circulating geothermal heat exchangers, it is characterized in that 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.
10. utilize a purposes of above-mentioned buried reflux casing type circulating geothermal heat exchanger, it is characterized in that the pile of double as surface structures in the perpendicular soil that can be arranged on when putting within the ground construction area of the underground pipe of described buried reflux casing type circulating geothermal heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024685 CN1840984A (en) | 2005-03-28 | 2005-03-28 | Buried reflux casing type circulating geothermal heat exchanger and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510024685 CN1840984A (en) | 2005-03-28 | 2005-03-28 | Buried reflux casing type circulating geothermal heat exchanger and use thereof |
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| CN1840984A true CN1840984A (en) | 2006-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510024685 Pending CN1840984A (en) | 2005-03-28 | 2005-03-28 | Buried reflux casing type circulating geothermal heat exchanger and use thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453571A (en) * | 2013-08-09 | 2013-12-18 | 西安交通大学 | Closed circulation heating system |
| CN104587802A (en) * | 2015-01-08 | 2015-05-06 | 青岛科技大学 | Vertical sleeve structure and absorption tower adopting vertical sleeve structure |
| CN108302669A (en) * | 2017-10-30 | 2018-07-20 | 四川联衡能源发展有限公司 | A kind of buried casing type heat exchanging device based on air dielectric |
| CN108458508A (en) * | 2018-05-09 | 2018-08-28 | 杭州众来新能源科技有限公司 | Spiral ground pile formula air-soil heat exchange energy-storage tube and heat accumulation type heat exchanger tube, cold-storage type heat exchanger tube |
| CN112524828A (en) * | 2020-12-07 | 2021-03-19 | 河北建筑工程学院 | Buried pipe heat exchanger with topology optimization structure |
| CN113654253A (en) * | 2021-07-30 | 2021-11-16 | 郭谊民 | Double-layer sleeve heat exchange device for geothermal well |
| CN114164009A (en) * | 2021-12-06 | 2022-03-11 | 江苏中天能源设备有限公司 | Coke oven riser waste heat recovery device and control method thereof |
-
2005
- 2005-03-28 CN CN 200510024685 patent/CN1840984A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453571A (en) * | 2013-08-09 | 2013-12-18 | 西安交通大学 | Closed circulation heating system |
| CN103453571B (en) * | 2013-08-09 | 2015-10-28 | 西安交通大学 | A kind of closed circulation heating system |
| CN104587802A (en) * | 2015-01-08 | 2015-05-06 | 青岛科技大学 | Vertical sleeve structure and absorption tower adopting vertical sleeve structure |
| CN104587802B (en) * | 2015-01-08 | 2016-12-07 | 青岛科技大学 | Vertical pipes structure and use the absorption tower of this vertical pipes structure |
| CN108302669A (en) * | 2017-10-30 | 2018-07-20 | 四川联衡能源发展有限公司 | A kind of buried casing type heat exchanging device based on air dielectric |
| CN108458508A (en) * | 2018-05-09 | 2018-08-28 | 杭州众来新能源科技有限公司 | Spiral ground pile formula air-soil heat exchange energy-storage tube and heat accumulation type heat exchanger tube, cold-storage type heat exchanger tube |
| CN112524828A (en) * | 2020-12-07 | 2021-03-19 | 河北建筑工程学院 | Buried pipe heat exchanger with topology optimization structure |
| CN113654253A (en) * | 2021-07-30 | 2021-11-16 | 郭谊民 | Double-layer sleeve heat exchange device for geothermal well |
| CN113654253B (en) * | 2021-07-30 | 2024-01-23 | 中兵占一新能源科技集团有限公司 | Double-layer sleeve heat exchange device for geothermal well |
| CN114164009A (en) * | 2021-12-06 | 2022-03-11 | 江苏中天能源设备有限公司 | Coke oven riser waste heat recovery device and control method thereof |
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Application publication date: 20061004 |