CN104314074B - With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger - Google Patents
With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger Download PDFInfo
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- CN104314074B CN104314074B CN201410572810.4A CN201410572810A CN104314074B CN 104314074 B CN104314074 B CN 104314074B CN 201410572810 A CN201410572810 A CN 201410572810A CN 104314074 B CN104314074 B CN 104314074B
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- double helix
- tubular exchanger
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- helix tubular
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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- Mechanical Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger; comprise double helix tubular exchanger, reinforcing cage, supporting elbow, metal coating sleeve, concrete, heat exchanger fluid import, heat exchanger fluid outlet and exchange media; double helix tubular exchanger is banded with inside described reinforcing cage; exchange media is provided with in double helix tubular exchanger; and lay along pile tube total length, described reinforcing cage and double helix tubular exchanger are all cast in concrete the tube wall forming prefabricated reinforced concrete pile tube.The present invention to carry out in the process of tube pile construction colligation double helix tubular exchanger inside reinforcing cage in factory, after concreting completes, double helix tubular exchanger is coated in concrete tube wall, pile tube is as the carrier of double helix tubular exchanger, in pile driving process, double helix tubular exchanger is sunk in sub-surface, pile foundation construction can be realized and earth source heat pump preexisting hole buries the construction integrated object of tubular exchanger underground.
Description
Technical field
The present invention relates to and a kind ofly bury pile foundation construction and earth source heat pump preexisting hole underground tubular exchanger construction integrated technology, be specifically related to the prefabricated reinforced concrete pre stressed empty piped piles with earth source heat pump double helix tubular exchanger in a kind of tube wall.
Background technology
Current known prefabricated reinforced concrete pile for prestressed pipe refers to the prestressed high-strength concrete pile (code name PHC), prestressed concrete pipe pile (code name PC), the thin tubular piles produced by prestressed concrete (code name PTC) that are made by pre-tensioning system technique in factory.The aspect such as size, mechanical property, detailing requiments, design, production, construction, examination of different prefabricated reinforced concrete pile tubes all should meet the requirement of the countries such as " prestressed concrete pipe pile " (atlas 03SG409), " technical code for building pile foundation " (JGJ94-2008), " Code for design of building " (GB5007-2011), " Code for design of concrete structures " (GB5010-2010) and industry related specifications.
The energy and environmental problem have caused world's extensive concern, and geothermal energy progressively substitutes traditional energy because its environmental friendliness characteristic passes through ground source heat pump technology in building and heating and refrigeration.Under earth's surface, the geothermal energy temperature of certain depth remains unchanged throughout the year, summer lower than outside temperature winter higher than outside temperature, earth source heat pump summer by exchange media by the transfer of heat that produces in building in soil, winter by exchange media by the transfer of heat in soil to indoor thus reach the object (Xia Caichu of refrigeration and heating, Cao Shiding, Wang Wei. the concept of energy underground construction, application and foregroud prospect [J]. the underground space and engineering journal, 2009-6,5 (3): 419-424), its operating principle as shown in Figure 1.
Present stage, the pipe laying mode of earth source heat pump was mainly divided into horizontal coiled pipe and perpendicularly buried pipe, and horizontal coiled pipe buried depth is more shallow, easy construction, but it is comparatively large to take up room, and it is poor that system affects larger fluctuation of service heat transfer effect by surface temperature; Though perpendicularly buried pipe overcome horizontal coiled pipe a part of shortcoming because of its boring costly, construction complicated (more than rush, Pan Linyou, Liu Songyu etc. the mechanism of action of interchange of heat stake and application [J] thereof. rock mechanics, 2009-4,30 (4): 933-948) also endure to the fullest extent always and denounce, become the major obstacles in ground source heat pump technology road for development.
Pile foundation is the base form that building is comparatively commonly used, its diameter from 0.5m to 2.0m not etc., reach even hundred meters, tens of rice, if can using the carrier of building pile foundation as earth source heat pump tubular exchanger, just pile foundation construction and earth source heat pump preexisting hole can be made to bury the construction integrated of tubular exchanger underground, thus save the complicated construction process that earth source heat pump tubular exchanger is buried in boring underground, reduce earth source heat pump construction period and initial investment.Domestic and international existing integrated construction is mostly based on castinplace pile, need pile foundation construction on-the-spot by the tubular exchanger colligation of various shape on the reinforcing cage of castinplace pile, difficulty of construction is larger, accuracy is difficult to ensure especially, and tubular exchanger easy squeeze and destroy when concrete perfusion, also may hinder transferring of grouting pipe, thus affect efficiency of construction.In addition domestic existing open invention is called " prestressing force concrete pipe pile for low-temperature geothermal energy conversion ", and its application number is (200610016544.2) publication number is (1800510).It is actually the tubular exchanger of transferring various shape after prefabricated tubular pile construction in pile tube pipe orifice, filling backfilling material between pile tube hole wall and heat exchanger, only the construction technology of pile tube avoids the problem such as necking down, collapse hole of holing and occurring, do not bury the problem of tubular exchanger complicated construction technique underground from solving in fact to hole, heat exchange efficiency is also by the impact of backfilling material heat conductivility in addition.
Summary of the invention
The object of the invention is to change present stage ground source heat pump technology boring costly, the unfavorable present situation that the construction of castinplace pile tubular exchanger is complicated, promote promoting the use of of ground source heat pump technology, a kind of prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger is provided, bury pile foundation construction and earth source heat pump preexisting hole underground tubular exchanger construction integrated, pile foundation has the function of carrying out ground hot-cast socket on the basis of tradition carrying effect.
The technical solution used in the present invention is: a kind of prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger, and this pile tube is arranged in soil layer, and exchange pipeline by earth's surface, earth source heat pump unit is connected with building;
The described prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger comprises double helix tubular exchanger, reinforcing cage, supporting elbow, metal coating sleeve, concrete, heat exchanger fluid import, heat exchanger fluid outlet and exchange media, double helix tubular exchanger is banded with inside described reinforcing cage, exchange media is provided with in double helix tubular exchanger, and lay along pile tube total length, described reinforcing cage and double helix tubular exchanger are all cast in concrete the tube wall forming prefabricated reinforced concrete pile tube, double helix tubular exchanger top is respectively equipped with heat exchanger fluid import and heat exchanger fluid outlet, heat exchanger fluid import and heat exchanger fluid outlet by supporting elbow apart from 0.5m place, stake top from pile tube lateral bend to pile tube tube wall, metal protection protector cylinder is provided with outside described supporting elbow, 0.1m at the bottom of the stake of double helix tubulose exchanger base distance.
As preferably, described double helix tubular exchanger is high density polyethylene (HDPE) (HDPE) material, and caliber is determined according to pile tube wall thickness.
As preferably, needing segmentation to produce when the stake of prefabricated reinforced concrete Pipe pile design is long, construction time, the described prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger is divided into epimere stake, stage casing stake and hypomere stake;
Double helix tubular exchanger in described epimere stake is apart from 0.5m place at the bottom of stake vertically downward;
Double helix tubular exchanger in the stake of described stage casing at distance 0.5m place, stake top vertically upward, and metal coating sleeve is laid in this segment length, metal coating sleeve is concordant with stake top, double helix tubular exchanger top is lower than metal coating sleeve, and with double helix tubular exchanger in epimere stake vertically downward part heat melt and be connected, in the stake of stage casing, 0.5m place is vertically downward at the bottom of distance stake for double helix tubular exchanger;
Double helix tubular exchanger in described hypomere stake at distance 0.5m place, stake top vertically upward; and metal coating sleeve is laid in this segment length; metal coating sleeve is concordant with stake top; double helix tubular exchanger top lower than metal coating sleeve, and with double helix tubular exchanger in epimere stake vertically downward part heat melt and be connected.
The aspect such as design, production, construction, examination of the prefabricated reinforced concrete pile tube that the present invention adopts all should meet the requirement of the countries such as " prestressed concrete pipe pile " (atlas 03SG409), " technical code for building pile foundation " (JGJ94-2008), " Code for design of building " (GB5007-2011), " Code for design of concrete structures " (GB5010-2010) and industry related specifications.
The double helix spacing of double helix tubular exchanger in pile tube can be regulated according to the needs of actual heating load, double helix tubular exchanger is coated in concrete, underground is sunk to pile tube by various construction method, double helix tubular exchanger exchanges pipeline with earth's surface, water pump is connected, filling exchange media in pipeline, form the closed cycle system of ground-source heat pump ground thermal energy exchange, reach the object of geothermal energy conversion.
Beneficial effect of the present invention: prefabricated reinforced concrete pile tube, as the carrier of double helix tubular exchanger, the basis playing traditional carrying effect can be carried out the conversion of geothermal energy.Lay double helix tubular exchanger in the pipe wall, the equivalent efficacy that tubular exchanger is buried in boring underground can be played, but save correlative charges and the time of drilling construction, and the temperature effect that interchange of heat produces is within the working range of steel concrete, the load-carrying properties of pile foundation are affected within controlled range.
The double helix tubular exchanger laid in pile tube of the present invention is all arranged on reinforcing cage in factory, compare at castinplace pile pile foundation job site colligation double helix tubular exchanger, construction quality and precision more can be guaranteed, double helix tubular exchanger is fixing in the pipe wall, pile tube can normal construction, only adopt when pile extension the heat mode of melting to connect the heat exchanger exit of adjacent two pile cutofves simultaneously, effectively can improve efficiency of construction, reduce the duration.
The technology of the present invention belongs to closed earth source heat pump exchange system, water pollutions and water resource waste problem that a large amount of groundwater abstraction of open system causes can be solved, secondly bury pile foundation construction and earth source heat pump preexisting hole underground tubular exchanger construction integrated, solve closed earth-source hot-pump system boring pipe laying and to construct the problems such as complicated expense height.Prefabricated reinforced concrete pile tube is applied comparatively extensive at home, if this technology can be promoted the use of, will promote the development of ground source heat pump technology further, and the country comparatively short to the such energy of China, its economic benefit and environmental benefit are self-evident.
Accompanying drawing explanation
Fig. 1 is earth source heat pump schematic diagram of the present invention;
Fig. 2 is the prefabricated reinforced concrete pile tube constructional drawing with earth source heat pump double helix tubular exchanger;
Fig. 3 is the prefabricated reinforced concrete pile tube sectional view with earth source heat pump double helix tubular exchanger;
Fig. 4 is the supporting elbow configuration figure of double helix tubular exchanger;
Fig. 5 is the prefabricated reinforced concrete pile tube epimere stake constructional drawing with earth source heat pump double helix tubular exchanger;
Fig. 6 is the prefabricated reinforced concrete pile tube stage casing stake constructional drawing with earth source heat pump double helix tubular exchanger;
Fig. 7 is the prefabricated reinforced concrete pile tube hypomere stake constructional drawing with earth source heat pump double helix tubular exchanger.
In figure: 1. with the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger; 2. double helix tubular exchanger, 3. soil layer, 4. earth's surface exchanges pipeline; 5. earth source heat pump unit; 6. building, 7. reinforcing cage, 8. supporting elbow; 9 metal coating sleeves; 10. concrete, 11. heat exchanger fluid imports, 12. heat exchanger fluid outlets.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In FIG, heat in soil layer 3 takes out with the exchange media in the double helix tubular exchanger 2 in the prefabricated reinforced concrete pile tube 1 of earth source heat pump double helix tubular exchanger by being filled in by winter, is supplied to building 6 heating through earth's surface exchange pipeline 4 and earth source heat pump unit 5; Waste heat in building 6 takes out by summer, is exchanged pipeline 4, earth source heat pump unit 5 and is filled in be discharged in soil layer 3 with the exchange media in the double helix tubular exchanger in the prefabricated reinforced concrete pile tube 1 of earth source heat pump double helix tubular exchanger go by earth's surface.
Fig. 2,3,4 is depicted as the whole prefabricated reinforced concrete pile tube 1 with earth source heat pump double helix tubular exchanger of reinforcing cage 7; in prefabrication process inside reinforcing cage 7 the earth source heat pump double helix tubular exchanger 2 of colligation HDPE material; caliber is determined according to pile tube wall thickness; double helix tubular exchanger 2 is laid along stake total length substantially; double helix tubular exchanger 2 by supporting elbow 8 apart from 0.5m place, stake top from stake lateral bend to tube wall; knee arranges corresponding bending metals protection sleeve 9,0.1m at the bottom of distance stake bottom double helix tubular exchanger 2.Concrete 10 has been built rear double helix tubulose heat exchange 2 and has been fixed in pile body, double helix tubular exchanger 2 sinks to soil layer 3 with pile tube 1, exchange media flows into from double helix tubular exchanger 2 heat exchanger fluid import 11 and flows out from double helix tubular exchanger 2 heat exchanger fluid outlet 12, realizes the exchange heat of exchange media and reinforcing cage 7, concrete 10, soil layer 3.
Figure 5 shows that the epimere of the prefabricated reinforced concrete pile tube 1 with earth source heat pump double helix tubular exchanger, in prefabrication process inside reinforcing cage 7 the earth source heat pump double helix tubular exchanger 2 of colligation HDPE material, caliber is determined according to pile tube wall thickness, double helix tubular exchanger 2 is laid along pile cutoff total length substantially, heat exchanger by supporting elbow 8 apart from 0.5m place, stake top from stake lateral bend to tube wall, knee arranges corresponding bending metals protection sleeve 9, double helix tubular exchanger 2 exports 0.5m place vertically downward under distance, melt technology with double helix tubular exchanger 2 outlet vertically upward in the stake of stage casing by heat to be connected.
Figure 6 shows that the stage casing of the prefabricated reinforced concrete pile tube 1 with earth source heat pump double helix tubular exchanger, in prefabrication process inside reinforcing cage the earth source heat pump double helix tubular exchanger 2 of colligation HDPE material, caliber is determined according to pile tube wall thickness, double helix tubular exchanger 2 is laid along pile cutoff total length completely, double helix tubular exchanger 2 at distance upper outlet 0.5m place vertically upward, and metal coating sleeve 9 is laid in this segment length, metal coating sleeve 9 is concordant with stake top, double helix tubular exchanger 2 exports a little less than metal coating sleeve 9, melt technology by heat to be connected with double helix tubular exchanger 2 outlet vertically downward in epimere stake.In the stake of stage casing, double helix tubular exchanger 2 exports 0.5m place vertically downward under distance, melts technology be connected with double helix tubular exchanger 2 outlet vertically upward in hypomere stake by heat.
Figure 7 shows that the hypomere of the prefabricated reinforced concrete pile tube 1 with earth source heat pump double helix tubular exchanger, in prefabrication process inside reinforcing cage the earth source heat pump double helix tubular exchanger 2 of colligation HDPE material, caliber is determined according to pile tube wall thickness, double helix tubular exchanger 2 is apart from 0.1m at the bottom of stake, double helix tubular exchanger at distance upper outlet 0.5m place vertically upward, and metal coating sleeve 9 is laid in this segment length, metal coating sleeve 9 is concordant with stake top, double helix tubulose heat exchanger exit is a little less than metal coating sleeve, melt technology by heat to be connected with double helix tubular exchanger 2 outlet vertically downward in epimere stake.Exchange media flows into from double helix tubular exchanger 2 fluid inlet 11 and flows out from double helix tubular exchanger 2 fluid issuing 12, realizes the exchange heat of exchange media and reinforcing cage 7, concrete 10, soil layer 3.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (1)
1. with a prefabricated reinforced concrete pile tube for earth source heat pump double helix tubular exchanger, it is characterized in that: this pile tube is arranged in soil layer, and exchange pipeline by earth's surface, earth source heat pump unit is connected with building;
The described prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger comprises double helix tubular exchanger, reinforcing cage, supporting elbow, metal coating sleeve, concrete, heat exchanger fluid import, heat exchanger fluid outlet and exchange media, double helix tubular exchanger is banded with inside described reinforcing cage, exchange media is provided with in double helix tubular exchanger, and lay along pile tube total length, described reinforcing cage and double helix tubular exchanger are all cast in concrete the tube wall forming prefabricated reinforced concrete pile tube, double helix tubular exchanger top is respectively equipped with heat exchanger fluid import and heat exchanger fluid outlet, heat exchanger fluid import and heat exchanger fluid outlet by supporting elbow apart from 0.5m place, stake top from pile tube lateral bend to pile tube tube wall, metal protection protector cylinder is provided with outside described supporting elbow, 0.1m at the bottom of the stake of double helix tubulose exchanger base distance,
Described double helix tubular exchanger is high density polyethylene (HDPE) material;
The stake of prefabricated reinforced concrete Pipe pile design is long, and the described prefabricated reinforced concrete pile tube with earth source heat pump double helix tubular exchanger is divided into epimere stake, stage casing stake and hypomere stake;
Double helix tubular exchanger in described epimere stake is apart from 0.5m place at the bottom of stake vertically downward;
Double helix tubular exchanger in the stake of described stage casing at distance 0.5m place, stake top vertically upward, and metal coating sleeve is laid in this segment length, metal coating sleeve is concordant with stake top, double helix tubular exchanger top is lower than metal coating sleeve, and with double helix tubular exchanger in epimere stake vertically downward part heat melt and be connected, in the stake of stage casing, 0.5m place is vertically downward at the bottom of distance stake for double helix tubular exchanger;
Double helix tubular exchanger in described hypomere stake at distance 0.5m place, stake top vertically upward; and metal coating sleeve is laid in this segment length; metal coating sleeve is concordant with stake top; double helix tubular exchanger top lower than metal coating sleeve, and with double helix tubular exchanger in epimere stake vertically downward part heat melt and be connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410572810.4A CN104314074B (en) | 2014-10-23 | 2014-10-23 | With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger |
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| CN201410572810.4A CN104314074B (en) | 2014-10-23 | 2014-10-23 | With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger |
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| CN104314074A CN104314074A (en) | 2015-01-28 |
| CN104314074B true CN104314074B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105698582B (en) * | 2016-01-28 | 2017-10-10 | 中国人民解放军后勤工程学院 | Improve the preset energy ball geothermal heat exchanger of heat transfer efficiency |
| CN114623293B (en) * | 2022-04-07 | 2023-11-03 | 安庆市悦发管业有限公司 | High-strength HDPE winding pipe with spiral torsion structure |
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| JP2005273235A (en) * | 2004-03-24 | 2005-10-06 | Fujishima Kensetsu:Kk | Building using underground heat |
| CN101408359A (en) * | 2008-11-28 | 2009-04-15 | 山东建筑大学 | Pile imbedded helix tube type ground source heat pump system and heat transferring model of terrestrial heat exchanger thereof |
| CN201250401Y (en) * | 2008-09-04 | 2009-06-03 | 宁波市海申环保能源技术开发有限公司 | Embedded pipe in a pile of a geothermal heat pump |
| CN202792689U (en) * | 2012-06-06 | 2013-03-13 | 孙斌 | Pipe pile annulus wall embedded type spiral pipe ground source heat pump buried pipe system |
| CN203256730U (en) * | 2013-02-19 | 2013-10-30 | 河海大学 | Prefabricated energy pile device for embedding heat transmission pipe |
| CN203533977U (en) * | 2013-08-21 | 2014-04-09 | 浙江陆特能源科技有限公司 | Pile foundation buried pipe heat exchange mechanism of ground source side of ground-source heat pump system |
| CN204112317U (en) * | 2014-10-23 | 2015-01-21 | 南京工业大学 | With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger |
-
2014
- 2014-10-23 CN CN201410572810.4A patent/CN104314074B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005273235A (en) * | 2004-03-24 | 2005-10-06 | Fujishima Kensetsu:Kk | Building using underground heat |
| CN201250401Y (en) * | 2008-09-04 | 2009-06-03 | 宁波市海申环保能源技术开发有限公司 | Embedded pipe in a pile of a geothermal heat pump |
| CN101408359A (en) * | 2008-11-28 | 2009-04-15 | 山东建筑大学 | Pile imbedded helix tube type ground source heat pump system and heat transferring model of terrestrial heat exchanger thereof |
| CN202792689U (en) * | 2012-06-06 | 2013-03-13 | 孙斌 | Pipe pile annulus wall embedded type spiral pipe ground source heat pump buried pipe system |
| CN203256730U (en) * | 2013-02-19 | 2013-10-30 | 河海大学 | Prefabricated energy pile device for embedding heat transmission pipe |
| CN203533977U (en) * | 2013-08-21 | 2014-04-09 | 浙江陆特能源科技有限公司 | Pile foundation buried pipe heat exchange mechanism of ground source side of ground-source heat pump system |
| CN204112317U (en) * | 2014-10-23 | 2015-01-21 | 南京工业大学 | With the prefabricated reinforced concrete pile tube of earth source heat pump double helix tubular exchanger |
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