CN103925738A - Open single-tube vertical borehole ground-coupled heat pump system - Google Patents
Open single-tube vertical borehole ground-coupled heat pump system Download PDFInfo
- Publication number
- CN103925738A CN103925738A CN201310008856.9A CN201310008856A CN103925738A CN 103925738 A CN103925738 A CN 103925738A CN 201310008856 A CN201310008856 A CN 201310008856A CN 103925738 A CN103925738 A CN 103925738A
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- China
- Prior art keywords
- tube
- well
- heat exchange
- pump
- pump system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/17—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an open single-tube vertical borehole ground-coupled heat pump system. By the aid of the characteristic of relative stability of underground rock-soil temperature, water serves as a heat exchange medium. The system comprises a single-tube heat exchange well, a submersible pump, a wellhead device, an ascending tube, a descending tube and a heat pump, wherein the upper portion of the single-tube heat exchange well is provided with a wall protecting tube, the lower portion of the single-tube heat exchange well is provided with a natural well wall, and the submersible pump is arranged on the upper portion or the lower portion of the single-tube heat exchange well. The system has the advantages that the water serving as the medium is led into the deepest position of the well by the aid of the single-tube heat exchange well drilled underground, circulates in the well, efficiently exchanges heat with surrounding soil through the stainless steel wall protecting tube on the upper portion of the well and directly efficiently exchanges heat with the natural well wall on the lower portion of the well, grouting, backfilling and hole sealing are omitted after well completion, drilling expenses and drilling amount can be reduced, and occupied area is saved.
Description
Technical field
The present invention relates to a kind of shallow layer geothermal energy and utilize field, be specifically related to a kind of open type single-tube perpendicularly buried pipe earth-source hot-pump system.
Background technology
Be accompanied by scientific and technical development, the traditional approach that cooling tower adds boiler need to freeze and heat two cover units because of it, and operating cost is high, and environment is had to pollution, is not more and more accepted by people.Earth-source hot-pump system utilizes green regenerative resource---shallow layer geothermal energy, can heat, freeze, domestic hot-water also can be provided, a tractor serves several purposes, one cover system can be replaced three cover systems of original heating boiler, air-conditioning and domestic hot-water's heating, operating cost is low, and pollution-free spendable environmentally friendly, the effective air-conditioning system at present that becomes.
As the one of earth source heat pump, the individual well heat exchange amount of conventional perpendicularly buried pipe earth-source hot-pump system is low, and boring pipe laying quantity is many, and floor space is large, and for rock geology, drilling cost is high.These have all limited the development of conventional perpendicularly buried pipe earth-source hot-pump system, how to strengthen individual well heat exchange amount, and reduce drilling hole number, save floor space and drilling cost, be the major issue that current conventional perpendicularly buried pipe earth-source hot-pump system need to solve.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of open type single-tube perpendicularly buried pipe earth-source hot-pump system.
For achieving the above object, technical scheme of the present invention is as follows: a kind of open type single-tube perpendicularly buried pipe earth-source hot-pump system, utilize the metastable characteristic of underground rock-soil layer temperature, using water as heat transferring medium, comprise single tube heat exchange well, immersible pump, wellhead assembly, ascending tube, down pipe, heat pump, described single tube heat exchange well top is wall protection pipe, and described single tube heat exchange well bottom is the nature borehole wall, and described immersible pump is located at top or the bottom of described single tube heat exchange well.
Preferably, described wall protection pipe be located at geotechnical structure soft, meet easily softening, abundant region, underground crack of water, the described natural borehole wall be located at geotechnical structure firm, meet the region that water does not soften.
Preferably, described ascending tube gos deep into being connected with described immersible pump at the bottom of described single tube heat exchange well, and described down pipe is located at described wellhead assembly place and is connected with described heat pump.
Preferably, described ascending tube is flexible compound insulating tube.
Preferably, described wall protection pipe is corrugated stainless steel tubing.
Preferably, described corrugated stainless steel tubing adopts flange to connect or welds and make.
Adopt the beneficial effect of above technical scheme to be: taking water as medium, by piercing underground single tube heat exchange well, the bosom of water being introduced to well, water circulates in well, passes through stainless steel wall protection pipe on the top of well, carry out high efficient heat exchanging with surrounding soil, in the bottom of well, directly carry out High Efficiency Thermal exchange with the natural borehole wall, Cheng Jinghou is without grouting backfill sealing of hole, can reduce drilling cost and drilling hole number, save floor space.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of open type single-tube of the present invention perpendicularly buried pipe earth-source hot-pump system.
The represented corresponding component title of numeral in figure:
1, single tube heat exchange well 2, ascending tube 3, down pipe 4, immersible pump 5, wellhead assembly 6, heat pump 7, wall protection pipe 8, the natural borehole wall 9, connect easily softening geology 11, the geology that chance water firm in structure does not soften of building load end 10, soft chance water.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
As shown in Figure 1, this system is utilized the metastable characteristic of underground ground temperature,, comprise single tube heat exchange well 1, ascending tube 2, down pipe 3, immersible pump 4, wellhead assembly 5, heat pump 6, wall protection pipe 7, the natural borehole wall 8 and connect building load end 9 as heat transferring medium with water.At easily softening geology 10 places of soft chance water, single tube heat exchange well 1 top is wall protection pipe 7, geology 11 single tube heat exchange well 1 bottoms, place of not softening at chance water firm in structure are the nature borehole wall 8, immersible pump 4 can be laid according to the degree of depth of single tube heat exchange well 1, single tube heat exchange well 1 is more shallow, and immersible pump 4 is placed on the bottom of well; Single tube heat exchange well 1 is darker, immersible pump 4 is placed on the top of well, be connected with immersible pump 4 by the ascending tube 2 that gos deep into shaft bottom again, down pipe 3 is located at described wellhead assembly 5 places and is connected with heat pump 6, ascending tube 2 is flexible compound insulating tube, and the wall protection pipe 7 of single tube heat exchange well 1 is good heat-transfer, axial stiffness, the corrugated stainless steel tubing of radial compliance, stainless steel can be according to concrete hydrogeologic condition decision, and corrugated stainless steel tubing adopts flange to connect or welding is made.
In system running, extract the water source of single tube heat exchange well 1 bottom by immersible pump 4, deliver to heat pump 6 by ascending tube 2, shallow layer geothermal energy is transferred to heat pump 6, water source after heat exchange is got back to the top of single tube heat exchange well 1 by down pipe 3, water circulates in well, high efficient heat exchanging is carried out by stainless steel wall protection pipe 7 and surrounding soil in top at well, in the bottom of well, directly carry out High Efficiency Thermal exchange with the natural borehole wall 8, extracted and deliver to heat pump 6 by immersible pump 4 by ascending tube 2 again, complete heat exchange cyclic process, Cheng Jinghou is without grouting backfill sealing of hole, drilling cost and drilling hole number can be reduced, save floor space.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. an open type single-tube perpendicularly buried pipe earth-source hot-pump system, utilize the metastable characteristic of underground rock-soil layer temperature, using water as heat transferring medium, it is characterized in that, comprise single tube heat exchange well, immersible pump, wellhead assembly, ascending tube, down pipe, heat pump, described single tube heat exchange well top is wall protection pipe, and described single tube heat exchange well bottom is the nature borehole wall, and described immersible pump is located at top or the bottom of described single tube heat exchange well.
2. open type single-tube perpendicularly buried pipe earth-source hot-pump system according to claim 1, it is characterized in that, described wall protection pipe be located at geotechnical structure soft, meet easily softening, abundant region, underground crack of water, the described natural borehole wall be located at geotechnical structure firm, meet the region that water does not soften.
3. open type single-tube perpendicularly buried pipe earth-source hot-pump system according to claim 1, is characterized in that, described ascending tube gos deep into being connected with described immersible pump at the bottom of described single tube heat exchange well, and described down pipe is located at described wellhead assembly place and is connected with described heat pump.
4. open type single-tube perpendicularly buried pipe earth-source hot-pump system according to claim 1, is characterized in that, described ascending tube is flexible compound insulating tube.
5. open type single-tube perpendicularly buried pipe earth-source hot-pump system according to claim 1, is characterized in that, described wall protection pipe is corrugated stainless steel tubing.
6. open type single-tube perpendicularly buried pipe earth-source hot-pump system according to claim 5, is characterized in that, described corrugated stainless steel tubing adopts flange to connect or welding is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008856.9A CN103925738A (en) | 2013-01-10 | 2013-01-10 | Open single-tube vertical borehole ground-coupled heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008856.9A CN103925738A (en) | 2013-01-10 | 2013-01-10 | Open single-tube vertical borehole ground-coupled heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925738A true CN103925738A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310008856.9A Pending CN103925738A (en) | 2013-01-10 | 2013-01-10 | Open single-tube vertical borehole ground-coupled heat pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927271A (en) * | 2016-06-15 | 2016-09-07 | 青岛建设集团有限公司 | Grouting backfilling system and grouting backfilling method for vertical shafts in vertical heat exchangers |
| CN106090422A (en) * | 2016-08-15 | 2016-11-09 | 浙江春晖智能控制股份有限公司 | A kind of geothermal pipe line heating device of pressure regulator valve |
| CN106195432A (en) * | 2016-08-15 | 2016-12-07 | 浙江春晖智能控制股份有限公司 | A kind of pipeline underground heat heat tracing still |
| CN109186112A (en) * | 2018-09-26 | 2019-01-11 | 张雨 | A kind of deep layer hot dry rock, mid-deep strata geothermal source cumulative heat-exchanger rig |
| CN110986393A (en) * | 2019-11-29 | 2020-04-10 | 江西省勘察设计研究院 | Shallow geothermal water deep circulation warming system and method |
| CN111237848A (en) * | 2020-01-16 | 2020-06-05 | 安徽理工大学 | Direct heating device utilizing abandoned mine and construction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0499466A2 (en) * | 1991-02-14 | 1992-08-19 | Harrell, James Elton jr | System for efficiently exchanging heat or cooling ground water in a deep well |
| CN1945164A (en) * | 2006-10-31 | 2007-04-11 | 张延军 | Engineering abandoned water lowering well type water source heat pump pipe well |
| CN203132205U (en) * | 2013-01-10 | 2013-08-14 | 江苏望远节能科技开发有限公司 | Open type single-pipe type vertical buried pipe ground-source heat pump system |
-
2013
- 2013-01-10 CN CN201310008856.9A patent/CN103925738A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0499466A2 (en) * | 1991-02-14 | 1992-08-19 | Harrell, James Elton jr | System for efficiently exchanging heat or cooling ground water in a deep well |
| CN1945164A (en) * | 2006-10-31 | 2007-04-11 | 张延军 | Engineering abandoned water lowering well type water source heat pump pipe well |
| CN203132205U (en) * | 2013-01-10 | 2013-08-14 | 江苏望远节能科技开发有限公司 | Open type single-pipe type vertical buried pipe ground-source heat pump system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927271A (en) * | 2016-06-15 | 2016-09-07 | 青岛建设集团有限公司 | Grouting backfilling system and grouting backfilling method for vertical shafts in vertical heat exchangers |
| CN106090422A (en) * | 2016-08-15 | 2016-11-09 | 浙江春晖智能控制股份有限公司 | A kind of geothermal pipe line heating device of pressure regulator valve |
| CN106195432A (en) * | 2016-08-15 | 2016-12-07 | 浙江春晖智能控制股份有限公司 | A kind of pipeline underground heat heat tracing still |
| CN109186112A (en) * | 2018-09-26 | 2019-01-11 | 张雨 | A kind of deep layer hot dry rock, mid-deep strata geothermal source cumulative heat-exchanger rig |
| CN109186112B (en) * | 2018-09-26 | 2024-02-13 | 泛亚绿能(陕西)能源科技有限公司 | Deep dry-hot rock and medium-deep geothermal source energy-gathering heat exchange device |
| CN110986393A (en) * | 2019-11-29 | 2020-04-10 | 江西省勘察设计研究院 | Shallow geothermal water deep circulation warming system and method |
| CN110986393B (en) * | 2019-11-29 | 2024-02-06 | 江西省勘察设计研究院有限公司 | Shallow geothermal water deep circulation warming system and method |
| CN111237848A (en) * | 2020-01-16 | 2020-06-05 | 安徽理工大学 | Direct heating device utilizing abandoned mine and construction method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |