CN1451932A - Geothermal heat exchanger - Google Patents
Geothermal heat exchanger Download PDFInfo
- Publication number
- CN1451932A CN1451932A CN03120734A CN03120734A CN1451932A CN 1451932 A CN1451932 A CN 1451932A CN 03120734 A CN03120734 A CN 03120734A CN 03120734 A CN03120734 A CN 03120734A CN 1451932 A CN1451932 A CN 1451932A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- thermal medium
- heat
- underground
- geothermal
- Prior art date
- 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.)
- Pending
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
- F24T2010/56—Control arrangements
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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)
- Road Paving Structures (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
Provided is a geothermal heat exchange apparatus capable of efficiently collecting geothermal power. A heat exchanger 1 for collecting geothermal power by heat exchange is vertically laid underground. The geothermal power collected by the heat exchanger 1 is transferred to a radiating pipe 2 through a circulating path 3 and is emitted from the radiating pipe 2 for snow melting or the like. In this apparatus, the circulating path 3 is provided with two heating medium circulating pumps 4 one of which is a backup, an expansion tank 5 for absorbing a volume change of the heating medium, and a pressure detector 6 for detecting a pressure lower limit due to leakage of the heating medium or the like and stopping the circulating pumps 4.
Description
Technical field
The present invention is in snow melt, air-conditioning, hot-water supply, warm water swimming pool, plant culture, or the aspects such as raising of animal can utilize the Geothermal heat exchanger of underground heat.
Background technology
Be to utilize to draw underground water (warm water) in the past, consider snow melt, air-conditioning, hot-water supply, warm water swimming pool, plant culture, or the utilization of the aspects such as raising of animal, can cause that ground sink, and does not now almost utilize this technology to implement but draw underground water in large quantities.
What consider in recent years is by at the underground heat exchanger that is used to gather underground heat of burying underground, undertaken by the transmission of thermal medium among this heat exchanger and underground heat between heat exchange, the device that utilizes the heat energy gathered like this to carry out aspect operations such as snow melt.
Summary of the invention
Yet this device in past exists the place that needs improvement, promptly can not make full use of the present situation of the underground heat that can collect.
The present invention is based on to address the above problem and be starting point, is problem so that the Geothermal heat exchanger of can high efficiency gathering underground heat to be provided.
Solve the method for this problem
Describe referring to figs. 1 through Fig. 3.Influence Geothermal heat exchanger of the present invention, be vertically to be embedded in underground the heat exchanger 1 that is used to gather underground heat, the underground heat that the heat exchanger of recording and narrating previously 1 is gathered is delivered to heat release pipe 2 by peripheral passage 3, and be released the Geothermal heat exchanger that carries out work such as snow melt at heat release pipe 2 places, and on the peripheral passage of recording and narrating in front 3, be provided with one be two thermal medium circulating pumps 4 of preparation and the volume of thermal medium changes when absorbing heat energy expansion drum 5, also be provided with and when thermal medium is leaked, can detect the low pressure limit value and make the circulating pump 4 out-of-work pressure detectors of recording and narrating previously 6.
The specific embodiment
Influence the example of Geothermal heat exchanger of the present invention, as depicted in figs. 1 and 2.This device is to insert interior pipe 1b with concentric circles in the outer tube 1a of bottom lock, the gap path 1c that forms between this outer tube 1a and the interior pipe 1b, vertically be embedded in underground the concentric double tubing heat exchanger 1 that forms like this, top from inner core begins to send into thermal medium (non freezing solution) then, thermal medium upset when arriving the bottom of pipe enters gap path 1c, and in uphill process, gather underground heat, subsequently the underground heat that collects is delivered to the heat release pipe 2 that is layed in road surface below by peripheral passage 3, and be released at heat release pipe 2 places and melt accumulated snow.
The device of Gou Chenging like this, be furtherly on peripheral passage 3, be provided with one be two thermal medium circulating pumps 4 of preparation and the volume of thermal medium changes when absorbing heat energy expansion drum 5, also be provided with and when thermal medium is leaked, can detect the low pressure limit value and make the circulating pump 4 out-of-work pressure detectors of recording and narrating previously 6.
Heat exchanger 1 in this example is the degree of depth that will be embedded in underground 50～100m with plural form, more avoids heat each other to disturb, the minimum each other 5m at interval that wants.In addition, the outer tube 1a of diameter 90mm makes with the hard polyethylene material, and the interior pipe 1b of diameter 56mm makes with identical hard polyethylene material, and thermal medium is sent into the speed of 20～25 liters of per minutes.
Thermal medium peripheral passage 3 is provided with incoming road 3a and loop 3b, is provided with thermal medium circulating pump 4 at incoming road 3a.This thermal medium circulating pump 4 be corresponding by 4～6 heat exchangers 1 constitute, two circulating pumps establishing of row side by side, wherein one as standby.Because have one standby, so when the thermal medium circulating pump 4 of Shi Yonging breaks down at ordinary times, can be by starting spare circulating pump, to guarantee the continuous running of this device.
On this thermal medium peripheral passage 3, be provided with flowmeter 7, extraction valve 8, air bleeding valve 9, pressure gauge 10, expansion drum 5 and pressure detector 6.Flowmeter 7 is meters of the thermal medium flow of instrumentation circulation, pressure gauge 10 is meters of instrumentation thermal medium peripheral passage 3 internal pressures, expansion drum 5 is volumes that thermal medium changes when being accompanied by variations in temperature absorption heat energy in thermal medium peripheral passage 3, pressure detector 6 is to be used for finishing under the situation that takes place to damage in thermal medium peripheral passage 3, the pressure that detects thermal medium sends signal when reaching lower limit, and makes thermal medium circulating pump 4 this task that quits work.
Explanation about this Geothermal heat exchanger effect.At first start thermal medium circulating pump 4, thermal medium is by the incoming road 3a of thermal medium peripheral passage 3, supply to the upper end of the interior pipe 1b of heat exchanger 1, this thermal medium is managed the lower end of 1b in entering after, gap path 1c is invaded in counter-rotating, transmit upward like this, by this gap path 1c the time, carry out heat exchange, gather underground heat.
In the thermal medium that heat exchanger 1 is gathered underground heat, the loop 3b by thermal medium peripheral passage 3 is sent to collector 11, and begins to be assigned to each heat release pipe 2 from this, and then discharges underground heat from each heat release pipe 2, comes accumulated snow on the melting road surface with this.
When causing the volume of thermal medium to change owing to variations in temperature therebetween, this volume-variation is absorbed by expansion drum 5, to guarantee that thermal medium circulates smoothly.And when thermal medium generation leakage made pressure reach lower limit, sending warning signal quit work thermal medium circulating pump 4, prevents the further leakage of thermal medium with this.
Also have heat release pipe 2 not merely to be confined on the article of concentric double tubular type operable as shown in Figure 3 U font article.Like this, in the central authorities of tube body 1d dividing wall 1e is set, liquid media is sent into from the path of a side, and the path from opposite side is discharged from again.
Circulating pump 4 can also start by device of solar generating and internal combustion engine TRT except that using general source power supply in addition.Device of solar generating as shown in Figure 4, solar panel 12 absorbs sunshines, battery 15 in the accumulator box 13 is charged when needs charge by control substrate 14, by rectifier 16 electric weight of necessity is supplied to circulating pump 4 again.
The effect of invention
Be provided with two hot media circulation pumps 4, wherein one based on geothermal heat exchanger 1 of the present invention As for subsequent use, when the hot media circulation pump 4 that uses at ordinary times breaks down, can realize this dress Put non-stop continuous operation. So can guarantee the work such as efficient that underground heat is gathered and snow melt Effect.
Again because be provided with expansion tank 5, when the volume of hot media changes with temperature, can Absorb the variation of this volume, therefore can when guaranteeing the smooth circulation as usual of hot media, have The collection underground heat of effect. And be provided with pressure detector 6, in the occasion of hot media generation leakage, When pressure reaches lower limit value, send warning signal and make hot media circulation pump 4 stop work, Prevent the further leakage of hot media with this, and guarantee effectively to gather underground heat.
Be more preferably the present invention and can avoid sinking of ground to the utilization of underground heat, and at the bottom of ground The underground heat of containing down is unlimited the existence, since harmless, so can be in snow melt, air-conditioning, confession Answer hot water, warm water swimming pool, plant cultivation, or the aspects such as raising of animal are used, Also do not bring out simultaneously the generation of the problems such as atmosphere pollution.
Description of drawings
Fig. 1 is the pie graph of expression example.
Fig. 2 is the heat exchanger part that is illustrated in Fig. 1 example, (a) is the front sectional layer, (b) is the plane sectional layer.
Fig. 3 is the heat exchanger part that is illustrated in other the example of the present invention, (a) is the front sectional layer, (b) is the plane sectional layer.
Fig. 4 is based on the circulating pump of apparatus of the present invention at the flow chart that starts device of solar generating.
Symbol description
1 heat exchanger
The 1a outer tube
Pipe in the 1b
1c gap path
The 1d tube body
The 1e dividing wall
2 heat release pipes
3 peripheral passages
3b loop, 3a outlet 4 thermal medium circulating pumps, 5 expansion drums, 6 pressure detectors, 7 flowmeters, 8 extraction valves, 9 air bleeding valves, 10 pressure gauges, 11 collectors, 12 solar panels, 13 accumulator boxs, 14 control substrates, 15 batteries, 16 rectifiers
Claims (1)
1. Geothermal heat exchanger, it is characterized in that, inner loop there is thermal medium, the heat exchanger (1) that is used to gather underground heat vertically is embedded in underground, the heat exchanger of recording and narrating previously (1) is that the underground heat of in Geothermal heat exchanger heat exchanger (1) being gathered is delivered to heat release pipe (2) by peripheral passage (3), and locate to be released at heat release pipe (2) and carry out snow melt etc., and on the peripheral passage of recording and narrating in front (3), be provided with one be two thermal medium circulating pumps (4) of preparation and the volume of thermal medium changes when absorbing heat energy expansion drum (5), also be provided with and when thermal medium is leaked, can detect the low pressure limit value and make the out-of-work pressure detector of recording and narrating previously of circulating pump (4) (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002109879 | 2002-04-12 | ||
| JP2002109879A JP2003302107A (en) | 2002-04-12 | 2002-04-12 | Geothermal heat exchange apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1451932A true CN1451932A (en) | 2003-10-29 |
Family
ID=29243210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03120734A Pending CN1451932A (en) | 2002-04-12 | 2003-03-18 | Geothermal heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003302107A (en) |
| CN (1) | CN1451932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2398977A1 (en) * | 2011-01-31 | 2013-03-25 | Sapje, S.L. | System of autonomous geothermal transfer between subsuelos. (Machine-translation by Google Translate, not legally binding) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT519580B1 (en) * | 2017-06-26 | 2018-08-15 | Jansen Ag | pressure gauge |
| KR102189532B1 (en) * | 2020-07-29 | 2020-12-14 | (주)이너지테크놀러지스 | Geothermal supply system capable of preventing leakage of geothermal heat fluid |
-
2002
- 2002-04-12 JP JP2002109879A patent/JP2003302107A/en active Pending
-
2003
- 2003-03-18 CN CN03120734A patent/CN1451932A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2398977A1 (en) * | 2011-01-31 | 2013-03-25 | Sapje, S.L. | System of autonomous geothermal transfer between subsuelos. (Machine-translation by Google Translate, not legally binding) |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003302107A (en) | 2003-10-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |