CN107990574A - The construction method and interior pipe laying heat exchange pilework of a kind of interior pipe laying heat exchange stake - Google Patents
The construction method and interior pipe laying heat exchange pilework of a kind of interior pipe laying heat exchange stake Download PDFInfo
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- CN107990574A CN107990574A CN201711069993.8A CN201711069993A CN107990574A CN 107990574 A CN107990574 A CN 107990574A CN 201711069993 A CN201711069993 A CN 201711069993A CN 107990574 A CN107990574 A CN 107990574A
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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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Abstract
Construction method and interior pipe laying heat exchange pilework the invention discloses a kind of interior pipe laying heat exchange stake, method is included based on existing pile foundation core detection hole, heat-transfer pipe and backfill slurries, core detection bore dia is 100 ~ 150mm, and pipe laying form can be in core detection hole：The first closed U-shaped circulation loop；Concentric circles inside and outside second, inner tube is outlet pipe, outer tube is water inlet pipe；Or between the third two core detection holes, circulation loop is formed by the pipeline for being embedded in an end.Advantages of the present invention and effect are：Using the core detection hole of existing pile foundation, heat-transfer pipe is buried in core detection hole, to form energy stake.Construction is not disturbed or influences pile foundation normal construction, and scheme is simple and operating expenses is low.
Description
Technical field
The present invention relates to energy piles technical field of ground source heat pump, more particularly to a kind of construction party of interior pipe laying heat exchange stake
Method.
Background technology
Earth source heat pump is using underground, the metastable characteristic of underground water temperature, by being embedded in around building
Pipe-line system, too small amount of high-order electric energy input is led to using heat pump principle, realizes that Lowlevel thermal energy is shifted with building to high level heat
Build a kind of technology that thing completes heat exchange.Energy stake（Also known as heat exchange stake, energy pile）It is mutually to tie pile foundation with earth source heat pump
Close, can both carry upper building structure, while the energy is provided for space using shallow layer ground-temperature energy, overcome conventional vertical
Of a relatively high etc. the deficiency of the pipe laying ground-source heat pump system drilling construction expense that drills, reduces the occupation of land face of ground-source heat pump system
Product, improve underground space utilization rate.
Before making the present invention, the Chinese invention patent " heat transfer of the geothermal heat exchanger of pile imbedded helix tube type ground source heat pump system
Method "（The patent No.：ZL200810159583.7）, disclose a kind of bound on the borehole filling pile cage of reinforcement of building basis and bury
If helix tube type heat-transfer pipe, earth source heat pump heat-transfer pipe is buried sets the technical solution being carried out at the same time with building pile basis.The skill
Art scheme heat-transfer pipe of constructing at the same time is buried and cast-in-situ bored pile, and earth source heat pump is constructed and is incorporated in routine building pile foundation construction
Together, eliminate special drilling and bury heat-transfer pipe, reduce the initial outlay of ground-source heat pump system, improve construction efficiency,
It is and easy for construction convenient.Chinese invention patent " construction method of pipe laying in a kind of earth source heat pump filling pile cage of reinforcement "（The patent No.：
ZL201310302155.6）A kind of construction method of pipe laying in earth source heat pump filling pile cage of reinforcement is disclosed, is substituted using steel pipe
Heat-transfer pipe is embedded in steel pipe, is bound so as to solve heat-transfer pipe with steel reinforcement cage as filling pile cage of reinforcement main reinforcement by solid reinforcing bar
Interfering with each other, easily causing the problems such as reinforcement corrosion and influence pile foundation total bearing capacity caused by embedded.These methods are
During pile foundation construction, heat-transfer pipe is sunk into underground together in company with steel reinforcement cage, then casting concrete；The binding of heat-transfer pipe, one
Determine to influence in degree or disturb pile foundation construction.
Bore extracting core process, is current pile foundation（Especially major diameter Bored Pile of Bridge）Common pile foundation construction quality testing side
One of method.By the total length coring on pile body, interception core sample is made test block and is observed discriminating, strength test etc., to detect stake
Base construction quality.Bore extracting core process is half damage detection method, hole can be left in pile foundation after taking out core sample.For this《Core drilling method
Detect concrete strength technical specification》（CECS03-2011）In the 5.0.9 articles regulation：One is improved using than former design grade
Strength grade and the concrete for mixing appropriate swelling agent, layering are inserted in hole and plug and pound closely knit, surface with tamper and smooth out.
The content of the invention
The present invention passes through base for the problems such as heat-transfer pipe may interfere with pile foundation construction is buried during conventional filling pile construction
In existing large-section in-situ concrete pile core detection hole, heat-transfer pipe, again recharge concrete material are first buried in hole, forms energy piles shape
The heat exchange stake of formula.
A kind of construction method of interior pipe laying heat exchange stake, by based on existing large-section in-situ concrete pile core detection hole, in institute
State and heat-transfer pipe, again recharge concrete material are first buried in large-section in-situ concrete pile core detection hole, form the heat friendship of energy piles form
Change stake；
Specifically include following technical step：
A kind of construction method of interior pipe laying heat exchange stake, by based on existing large-section in-situ concrete pile core detection hole, described big
Heat-transfer pipe, again recharge concrete material are first buried in diameter bored concrete pile core detection hole, forms the heat exchange stake of energy piles form；
Specifically include following technical step：
S1, according to the position in existing core detection hole, number and diameter situation, determine heat-transfer pipe model, the circulation of heat-transfer pipe pipe laying
Circuit and backfill slurries type parameter；The heat-transfer pipe pipe laying circulation loop includes following three kinds of forms：
The first, closed U-shaped circulation loop；
Secondth, inside and outside circular sleeve circulation loop with one heart, inner tube is outlet pipe, outer tube is water inlet pipe；
The third, between two core detection holes, circulation loop is formed by the pipeline for being embedded in an end；
S2, according to heat-transfer pipe circulation loop form, make heat-transfer pipe circulation loop connection mode；
When heat-transfer pipe pipe laying form is closed U-shaped circulation loop, two heat-transfer pipes are connected using elbow；
When heat-transfer pipe pipe laying form is inside and outside circular sleeve circulation loop with one heart, interval lattice is set between outer tube and inner tube；
When heat-transfer pipe pipe laying form is between two core detection holes, and the pipeline by being embedded in an end forms circulation loop,
Before bored concrete pile is poured, shift to an earlier date pre-buried setting pipe passage at the 0.3m ~ 0.5m positions of stake end；
S3, according to designed heat-transfer pipe pipe laying form, heat-transfer pipe circulation loop is arranged in core detection hole；
After S4, embedded completion heat-transfer pipe circulation loop, backfill slurries are filled in core detection hole；
S5, carry out water flowing test to heat-transfer pipe circulation loop, to detect its leakproofness；Complete single to be based on existing core detection hole
Pipe laying construction；
S6, repeat step S2 ~ step S5, carry out other pipe laying constructions based on existing core detection hole；
S7, collect heat-transfer pipe and link together, and is connected with water circulating pump, completes based in existing bored concrete pile core detection hole
The integral construction of the heat exchange stake of embedded heat-transfer pipe.
The backfill slurries are cement mortar and swelling agent, and cement grade is compared with cement mark used in existed concrete bridge bored concrete pile
Number high level-one.
The heat-transfer pipe is managed for PE.
Select heat-transfer pipe pipe laying form for closed U-shaped circulation loop when, heat transfer is by sequentially connected three parts group
Into being respectively：Import pipeline section, bending connector and outlet pipe section, wherein, import pipeline section is vertical from bored concrete pile pile foundation coring bore edges
Into outlet pipe section is drawn straight up along stake bottom surface, and import pipeline section is with outlet pipe section in coring hole underrun bending connector
Connection, the input end of import pipeline section and the port of export of outlet pipe section are respectively connected to heat pump；
Select heat-transfer pipe pipe laying form for inside and outside concentric circles barrel forms when, inner and outer tubes are inserted into pile foundation coring hole at the same time,
Inner tube is inserted into coring bottom hole portion, and outer tube is inserted into coring hole middle and upper part, the exterior annular chamber conduct formed between outer tube and inner tube
Intake tunnel, inner tube do hollow processing as exhalant canal, inner tube lower end, so as to water circulation, the input end of intake tunnel with
The port of export of exhalant canal is respectively connected to heat pump；
When selecting heat-transfer pipe pipe laying form between two core detection holes, circulation loop is formed by the pipeline for being embedded in an end
When, it is necessary in advance before bored concrete pile is poured, pre-buried pipeline is being set at the 0.3 ~ 0.5m positions of bored concrete pile end, in coring
Pre-buried pipeline is got through so as to form U-shaped circulation loop, then heat transfer is arranged in U-shaped circulation loop, the import of heat transfer
End is respectively connected to heat pump with the port of export.
The present invention also further discloses a kind of interior pipe laying heat exchange pilework, based on existing core detection hole, including
Three kinds of forms below：
The first, closed U-shaped circulation loop, be specifically：Heat transfer is made of sequentially connected three parts, is respectively：Into
Mouth pipeline section, bending connector and outlet pipe section, wherein, import pipeline section is from bored concrete pile pile foundation coring bore edges vertically into outlet
Section is drawn straight up along stake bottom surface, and import pipeline section is connected with outlet pipe section in coring hole underrun bending connector, inlet tube
The input end of section and the port of export of outlet pipe section are respectively connected to heat pump；
Secondth, inside and outside circular sleeve circulation loop with one heart, inner tube is outlet pipe, outer tube is water inlet pipe, is specifically：Inner tube and outer
Pipe is inserted into pile foundation coring hole at the same time, and inner tube is inserted into coring bottom hole portion, and outer tube is inserted into coring hole middle and upper part, between outer tube and inner tube
The exterior annular chamber of formation is as intake tunnel, and inner tube does hollow processing as exhalant canal, inner tube lower end, so that current follow
Ring, the input end of intake tunnel and the port of export of exhalant canal are respectively connected to heat pump；
The third, between two core detection hole, circulation loop is formed by the pipeline for being embedded in an end, is specifically：
In advance before bored concrete pile is poured, pre-buried pipeline is being set at the 0.3 ~ 0.5m positions of bored concrete pile end, is being beaten in coring
Lead to pre-buried pipeline so as to form U-shaped circulation loop, then heat transfer is arranged in U-shaped circulation loop, the input end of heat transfer
Heat pump is respectively connected to the port of export.
The inside and outside circular sleeve with one heart is managed for PE, integral by lattice connection customization between inner and outer tubes.
In the inside and outside circular sleeve circulation loop with one heart, the lattice between inner and outer tubes is axial along inner and outer tubes
4 ~ 6 layers are set, spacing distance is 4m ~ 5m between every layer.
Compared with traditional heat exchange pile construction technology, technical solution of the present invention has the following advantages that：
（1）Make full use of existing core detection hole, bury heat-transfer pipe and form heat-exchange power stake, heat-transfer pipe it is embedded simple, just
It is prompt.
（2）Construction occur after core detection, do not disturb or influence pile foundation normal construction, scheme simply and operating expenses
It is low.
Brief description of the drawings
Fig. 1 present invention existing core detection hole cross-sectional view；
Schematic diagram when heat transfer form is closed U-shaped circulation loop is buried in Fig. 2 core detection holes of the present invention；
Fig. 3 is the signal buried in core detection hole of the present invention when heat transfer form is inside and outside circular sleeve circulation loop with one heart
Figure；
Fig. 4 is that heat transfer form is buried in core detection hole of the present invention is between two core detection holes, by being embedded in stake
The pipeline at end forms schematic diagram during circulation loop；
Heat transfer is buried in Fig. 5 core detection holes of the present invention and connects cross-sectional view for concentric circular sleeve inner and outer pipe.
Wherein, 1 is existing bored concrete pile, and 2 be core detection hole, and 3 be heat pump, and 4 be U-shaped heat-transfer pipe, and 5 be connector, and 6 be heat conduction
Liquid, 7 be concentric circular sleeve inner tube, and 8 be concentric circular sleeve outer tube；9 be the pre-buried pipeline in stake end；10 be lattice.
Embodiment
With reference to the accompanying drawings and detailed description, the technical solution and construction method for patent that the present invention is furture elucidated.
As shown in Fig. 2 ~ 4, a kind of heat exchange stake based on pipe laying in existing core detection hole, in Fig. 2 ~ Fig. 4, coring inspection
2 a diameter of 100 ~ 150mm of gaging hole, heat-transfer pipe are managed for PE, 20 ~ 32mm of internal diameter, 3 ~ 4mm of thickness；Pipe laying arrangement form can be：
1）Closed U-shaped circulation loop；
2）Inside and outside concentric circles, inside and outside concentric circles are connected by lattice 10, and concentric circular sleeve inner tube 7 is outlet pipe, with one heart
Circular sleeve outer tube 8 is water inlet pipe；
Or 3）Between two core detection holes, circulation loop is formed by the pipeline 9 for being embedded in an end.
As shown in Fig. 2, when the heat transfer is closed U-shaped circulation loop, heat transfer is by sequentially connected three
It is grouped into：Import pipeline section, bending connector 5, outlet pipe section；Import pipeline section from grout pile pile foundation coring bore edges vertically into,
Outlet pipe section is drawn straight up along stake bottom surface, and import pipeline section is connected with outlet pipe section in coring hole underrun bending connector；
The input end of import pipeline section and the port of export of outlet pipe section are respectively connected to heat pump 3；
Preferably, bending connector is integrally formed U-shaped heat-transfer pipe 4 with import pipeline section and outlet pipe section part.
As shown in figure 3, when the heat transfer is inside and outside concentric circles, heat transfer point inner tube outer tube is inserted at the same time to be taken
Core bore bottom, outer shroud is as water inlet pipe, and inner circle does hollow processing as outlet pipe, inner tube lower end, so as to water circulation, inlet tube
The input end of section and the port of export of outlet pipe section are respectively connected to heat pump 3.Concentric circular sleeve inner tube 7 passes through lattice 10 with outer tube 8
Customization is integral in advance for connection.
As shown in figure 4, the heat transfer is formed between two core detection holes by the pipeline 9 for being embedded in an end
Circulation loop.Need in advance before bored concrete pile 1 is poured, pipe passage is being set apart from stake end 0.3 ~ 0.5m positions.In coring
When get through pre-buried pipeline 9 so as to forming U-shaped circulation loop, then arrange heat transfer, the input end and outlet pipe section of import pipeline section
The port of export be respectively connected to heat pump 3.
A kind of construction method of interior pipe laying heat exchange stake is as follows：First according to design requirement, heat-transfer pipe circulation loop is made；
When pipe laying form is 1）During closed U-shaped circulation loop, two heat-transfer pipes are connected using elbow, heat transfer bore for 20 ~
32mm, wall thickness are 3 ~ 4mm, and the present embodiment internal diameter is 25mm, wall thickness 3mm；
When pipe laying form is inside and outside concentric circles, concentric 8 internal diameter of circular sleeve outer tube is 25 ~ 32mm, concentric circular sleeve inner tube 7
Internal diameter is 20 ~ 25mm, and wall thickness is 3 ~ 4mm, and concentric 8 internal diameter of circular sleeve outer tube of the present embodiment is 32mm, in concentric circular sleeve inner tube 7
Footpath is 20mm, wall thickness 4mm.Between outer tube and inner tube, set interval lattice, lattice set 4 ~ 6 layers, 4 ~ 5m of spacing, every layer 2 ~ 4
A the present embodiment lattice set 4 layers, spacing 5m, every layer of 4 guarantee outer tube and inner tube arranged concentric；
When pipe laying form is between two core detection holes, and the pipeline by being embedded in an end forms circulation loop, exist in advance
Before pouring bored concrete pile, pipe passage is being set apart from stake end 0.3 ~ 0.5m positions.Heat transfer bore is 20 ~ 32mm, wall thickness 3
~ 4mm, the present embodiment internal diameter are preferably 32mm, and wall thickness is preferably 4mm.The length of tube that conducts heat is determined according to stake is long, is 20 ~ 30m, this
Long embodiment stake is preferably 20m.
Secondly, according to designed pipe laying arrangement form, heat-transfer pipe circulation loop is arranged in core detection hole.It is embedded
After completing heat-transfer pipe circulation loop, backfill slurries are filled in core detection hole.
Slurries are backfilled, are cement mortar and swelling agent, cement grade is high compared with cement grade used in existed concrete bridge bored concrete pile
Level-one.Then, to heat-transfer pipe circulation loop, water flowing test is carried out, to detect its leakproofness；Complete single based on the inspection of existing coring
The pipe laying construction of gaging hole.
Finally, other pipe laying constructions based on existing core detection hole are carried out, and heat-transfer pipe is collected and is linked together, and
It is connected with water circulating pump；Complete based on the integral construction that heat-transfer pipe is buried in existing bored concrete pile core detection hole.
Claims (7)
1. a kind of construction method of interior pipe laying heat exchange stake, it is characterised in that by being examined based on existing large-section in-situ concrete pile coring
Gaging hole, first buries heat-transfer pipe, again recharge concrete material in the large-section in-situ concrete pile core detection hole, forms energy piles shape
The heat exchange stake of formula；
Specifically include following technical step：
S1, according to the position in existing core detection hole, number and diameter situation, determine heat-transfer pipe model, the circulation of heat-transfer pipe pipe laying
Circuit and backfill slurries type parameter；The heat-transfer pipe pipe laying circulation loop includes following three kinds of forms：
The first, closed U-shaped circulation loop；
Secondth, inside and outside circular sleeve circulation loop with one heart, inner tube is outlet pipe, outer tube is water inlet pipe；
The third, between two core detection holes, circulation loop is formed by the pipeline for being embedded in an end；
S2, according to heat-transfer pipe circulation loop form, make heat-transfer pipe circulation loop connection mode；
When heat-transfer pipe pipe laying form is closed U-shaped circulation loop, two heat-transfer pipes are connected using elbow；
When heat-transfer pipe pipe laying form is inside and outside circular sleeve circulation loop with one heart, interval lattice is set between outer tube and inner tube；
When heat-transfer pipe pipe laying form is between two core detection holes, and the pipeline by being embedded in an end forms circulation loop,
Before bored concrete pile is poured, shift to an earlier date pre-buried setting pipe passage at the 0.3m ~ 0.5m positions of stake end；
S3, according to designed heat-transfer pipe pipe laying form, heat-transfer pipe circulation loop is arranged in core detection hole；
After S4, embedded completion heat-transfer pipe circulation loop, backfill slurries are filled in core detection hole；
S5, carry out water flowing test to heat-transfer pipe circulation loop, to detect its leakproofness；Complete single to be based on existing core detection hole
Pipe laying construction；
S6, repeat step S2 ~ step S5, carry out other pipe laying constructions based on existing core detection hole；
S7, collect heat-transfer pipe and link together, and is connected with water circulating pump, completes based in existing bored concrete pile core detection hole
The integral construction of the heat exchange stake of embedded heat-transfer pipe.
A kind of 2. construction method of interior pipe laying heat exchange stake according to claim 1, it is characterised in that：The backfill slurry
Liquid is cement mortar and swelling agent, and cement grade is compared with the high level-one of cement grade used in existed concrete bridge bored concrete pile.
A kind of 3. construction method of interior pipe laying heat exchange stake according to claim 1, it is characterised in that：The heat-transfer pipe
Managed for PE.
A kind of 4. construction method of interior pipe laying heat exchange stake according to claim 1, it is characterised in that：Selection heat-transfer pipe buries
When form of tubes is closed U-shaped circulation loop, heat transfer is made of sequentially connected three parts, is respectively：It is import pipeline section, curved
Shape connector and outlet pipe section, wherein, import pipeline section is from bored concrete pile pile foundation coring bore edges vertically into, outlet pipe section along stake bottom surface
Draw straight up, import pipeline section is connected with outlet pipe section in coring hole underrun bending connector, the input end of import pipeline section
Heat pump is respectively connected to the port of export of outlet pipe section；
Select heat-transfer pipe pipe laying form for inside and outside concentric circles barrel forms when, inner and outer tubes are inserted into pile foundation coring hole at the same time,
Inner tube is inserted into coring bottom hole portion, and outer tube is inserted into coring hole middle and upper part, the exterior annular chamber conduct formed between outer tube and inner tube
Intake tunnel, inner tube do hollow processing as exhalant canal, inner tube lower end, so as to water circulation, the input end of intake tunnel with
The port of export of exhalant canal is respectively connected to heat pump；
When selecting heat-transfer pipe pipe laying form between two core detection holes, circulation loop is formed by the pipeline for being embedded in an end
When, it is necessary in advance before bored concrete pile is poured, pre-buried pipeline is being set at the 0.3 ~ 0.5m positions of bored concrete pile end, in coring
Pre-buried pipeline is got through so as to form U-shaped circulation loop, then heat transfer is arranged in U-shaped circulation loop, the import of heat transfer
End is respectively connected to heat pump with the port of export.
5. a kind of interior pipe laying heat exchange pilework, it is characterised in that based on existing core detection hole, including following three kinds of forms：
The first, closed U-shaped circulation loop, be specifically：Heat transfer is made of sequentially connected three parts, is respectively：Into
Mouth pipeline section, bending connector and outlet pipe section, wherein, import pipeline section is from bored concrete pile pile foundation coring bore edges vertically into outlet
Section is drawn straight up along stake bottom surface, and import pipeline section is connected with outlet pipe section in coring hole underrun bending connector, inlet tube
The input end of section and the port of export of outlet pipe section are respectively connected to heat pump；
Secondth, inside and outside circular sleeve circulation loop with one heart, inner tube is outlet pipe, outer tube is water inlet pipe, is specifically：Inner tube and outer
Pipe is inserted into pile foundation coring hole at the same time, and inner tube is inserted into coring bottom hole portion, and outer tube is inserted into coring hole middle and upper part, between outer tube and inner tube
The exterior annular chamber of formation is as intake tunnel, and inner tube does hollow processing as exhalant canal, inner tube lower end, so that current follow
Ring, the input end of intake tunnel and the port of export of exhalant canal are respectively connected to heat pump；
The third, between two core detection hole, circulation loop is formed by the pipeline for being embedded in an end, is specifically：
In advance before bored concrete pile is poured, pre-buried pipeline is being set at the 0.3 ~ 0.5m positions of bored concrete pile end, is being beaten in coring
Lead to pre-buried pipeline so as to form U-shaped circulation loop, then heat transfer is arranged in U-shaped circulation loop, the input end of heat transfer
Heat pump is respectively connected to the port of export.
6. interior pipe laying heat exchange pilework according to claim 5, it is characterised in that：The inside and outside concentric circular sleeve
Managed for PE, it is integral by lattice connection customization between inner and outer tubes.
7. interior pipe laying heat exchange pilework according to claim 6, it is characterised in that：The inside and outside concentric circular sleeve
In circulation loop, the lattice between inner and outer tubes axially sets 4 ~ 6 layers along inner and outer tubes, and spacing distance is 4m between every layer
~5m。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069993.8A CN107990574A (en) | 2017-11-03 | 2017-11-03 | The construction method and interior pipe laying heat exchange pilework of a kind of interior pipe laying heat exchange stake |
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|---|---|---|---|
| CN201711069993.8A CN107990574A (en) | 2017-11-03 | 2017-11-03 | The construction method and interior pipe laying heat exchange pilework of a kind of interior pipe laying heat exchange stake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108533044A (en) * | 2018-07-04 | 2018-09-14 | 肖昭然 | A kind of energy horizontal warehouse system |
| CN108894212A (en) * | 2018-08-16 | 2018-11-27 | 南京航空航天大学 | A kind of cast-in-place pile type energy stake of novel belt energy storage device |
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| CN108894212A (en) * | 2018-08-16 | 2018-11-27 | 南京航空航天大学 | A kind of cast-in-place pile type energy stake of novel belt energy storage device |
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Application publication date: 20180504 |
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