CN205742162U - A kind of prefabricated geothermal energy pile tube - Google Patents
A kind of prefabricated geothermal energy pile tube Download PDFInfo
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- CN205742162U CN205742162U CN201620684445.0U CN201620684445U CN205742162U CN 205742162 U CN205742162 U CN 205742162U CN 201620684445 U CN201620684445 U CN 201620684445U CN 205742162 U CN205742162 U CN 205742162U
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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
This utility model belongs to energy-saving building technology field, relates to a kind of prefabricated geothermal energy pile tube, the support that lower rebar rack and upper reinforcement rack are constituted by fixing reinforcement welding on end plate；The boundary of lower rebar rack and upper reinforcement rack is equipped with steel plate torr, PE heat-exchange tube and liquid injection pipe are all fixed by support and are passed cushion cap and be connected with level set distributive pipe, the seam of PE heat-exchange tube and liquid injection pipe and level set distributive pipe is respectively provided with effusion meter and piezometer, tube core conductive fluid it is marked with in the tube core of prefabricated tubular pile, steel plate torr is inoculated with slightly expanded concrete to the tube core that prefabricated tubular pile stake top mark is high, together with slightly expanded concrete is cast in upper reinforcement rack, three borings are reserved respectively as PE heat-exchange tube import in the bottom of steel supporting plate, the outlet of PE heat-exchange tube and liquid injection pipe import, three drill hole are mounted on pillar；Its simple in construction, easy to use, low cost, heat exchange efficiency is high, safe and reliable, environmental friendliness.
Description
Technical field:
This utility model belongs to energy-saving building technology field, relates to the prefabricated geothermal energy pile tube of a kind of new structure.
Background technology:
In recent years, the underground pipe of traditional earth-source hot-pump system, as one of novel energy-conserving technology, is cast in by energy stake
In pile foundation concrete, make energy stake have structural elements and heat exchanger dual-use function concurrently, save boring expense and the underground of great number
Space resources, makes full use of geothermal resource for building refrigeration, heat supply and offer domestic hot-water simultaneously.At present, pile body is utilized
Concrete is as the transmission material of energy, and heat transfer is higher with exchange efficiency, than traditional air conditioner system energy saving 30%～
50%.Although existing energy stake technology achieves certain economic benefit, but still suffers from some problems and not yet have been resolved, its
Structure and construction technology urgently optimize.In the pile-type of the most conventional energy stake, deposited reinforced concrete pile not only site operation work
Skill is numerous and diverse, long in time limit, cost is high, and heat-exchange tube and modulus of elasticity of concrete have larger difference, during pile foundation is on active service, and heat
It is easily generated stress at exchange pore hole to concentrate, affects pile foundation stress；Although pile for prestressed pipe duration, cost relatively armored concrete fills
Note stake is low, but due to the pre-buried heat-exchange tube of pile body, easily produces crack in transportation or during piling.Therefore, exist
On the basis of conventional energy stake form, develop a kind of little to pile foundation stressing influence, that heat transfer efficiency is high, the duration is short, cost is low is new
Type prefabricated geothermal energy stake is significant.
Summary of the invention:
Goal of the invention of the present utility model is the shortcoming overcoming prior art to exist, and seeking design provides a kind of novel knot
The prefabricated tubular pile energy stake of structure, heat-exchange tube can be inserted hole of post core after terminating by prefabricated pile tube piling of remaining silent easily and fast
In, underground shallow layer heat energy passes to tube core conductive fluid by pile body concrete, and conductive fluid carries out energy with heat-exchange tube further
Exchange, it is achieved cooling in summer, the function of heat supply in winter, can substantially simplify working procedure, reduction of erection time, improves heat exchange efficiency, fall
Low construction costs.
To achieve these goals, agent structure of the present utility model includes prefabricated tubular pile, stake end, impervious material, joint
Antiseepage pipe, full weld joint, PE heat-exchange tube, liquid injection pipe, level set distributive pipe, effusion meter, steel plate torr, lower rebar rack, on
Portion's bar frame, cushion cap, slightly expanded concrete, PE heat-exchange tube import, liquid injection pipe import, pillar, tube core conductive fluid, pressure
The outlet of meter, PE heat-exchange tube, fixing reinforcing bar and end plate；Stake end bottom prefabricated tubular pile is closed configuration or is provided with closing pile
Point, the inwall of prefabricated tubular pile is coated with impervious material, it is to avoid the conductive fluid in prefabricated tubular pile tube core is to pile shaft material and inside
The erosion of reinforcing bar；At the pipe pile joint of prefabricated tubular pile, inwall is pasted with the joint antiseepage pipe of a length of 200mm, it is to avoid prefabricated tubular pile
Conductive fluid leakage polluting or on surrounding soil mechanical property and the impact of stake effective heat exchange area underground environment in tube core；In advance
The seam crossing of tubulation stake is provided with full weld joint, and full weld joint uses jacks to seal levelling and full weld；Lower rebar rack and
The combination of upper reinforcement rack constitutes support, and rack surface smears anticorrosive coat and by fixing reinforcement welding on end plate；Bottom
The boundary of bar frame and upper reinforcement rack is equipped with the steel plate torr of circular configuration, and steel plate torr distance prefabricated tubular pile stake top mark is high
2m；Lower rebar rack is made up of the vertical muscle colligation of diameter 6mm, the stirrup of spacing 200mm and four diameter 10mm, for by having
Effect heat exchange distance colligation and fixing PE heat-exchange tube, it is to avoid the arm distance of PE heat-exchange tube is too near produces heat interference；Upper steel
Muscle rack is made up of the vertical muscle colligation of diameter 8mm, the stirrup of spacing 150mm and six roots of sensation diameter 20mm, is used for fixing PE heat exchange
Pipe；Upper reinforcement rack stretch out prefabricated tubular pile top insert cushion cap part as joint bar, joint bar anchorage length is according to prestressing force
The requirement of concrete tubular pile " 10G409 national building standard design atlas " is arranged, and prefabricated tubular pile is connected by joint bar with cushion cap；
PE heat-exchange tube and liquid injection pipe are all fixed by support, and are each passed through cushion cap and are connected with the level set distributive pipe on ground, PE heat
The seam of exchange pipe and liquid injection pipe and level set distributive pipe is respectively provided with effusion meter and piezometer, and PE heat-exchange tube is for through
Heat exchange fluid, in the tube core conductive fluid tube core by liquid injection pipe injection prefabricated tubular pile, the shallow-layer ground that prefabricated tubular pile pile body is transmitted
Heat transfer is carried out between heat energy and PE heat-exchange tube；Steel plate torr is inoculated with the micro-of C35 to the tube core of prefabricated tubular pile stake top elevation range
Expansive concrete, together with slightly expanded concrete is cast in upper reinforcement rack, improves the top load-carrying properties of prefabricated tubular pile, with
Time seal tube core conductive fluid；The bottom of steel supporting plate smear anticorrosive coat and reserved three borings respectively as PE heat-exchange tube import,
The outlet of PE heat-exchange tube and liquid injection pipe import, three drill hole are mounted on pillar, are used for protecting PE heat-exchange tube and liquid injection pipe
From steel plate torr and the extruding of top slightly expanded concrete and infringement, pillar uses the fluid sealant cementation of fissures.
Prefabricated tubular pile described in the utility model is in existing prefabricated tubular pile technology, utilizes high pressure painting technology prefabricated
Pile tube inner-wall spraying impervious material is made, and includes prefabricated reinforced concrete pile tube and steel-pipe pile according to pile shaft material, the most prefabricated
Concrete tubular pile inner-wall spraying has two layer depth permeable crystalline waterproofing materials (DPS)；The inside and outside wall spraying heavy antisepsis ring of steel-pipe pile
Oxygen powdery paints.
Tube core conductive fluid described in the utility model selects water or low-cost heat conduction oils.
The Specific construction process of prefabricated geothermal energy pile tube described in the utility model includes following five steps:
(1) pile tube is prefabricated: adds barrier technology on the basis of existing prefabricated tubular pile technology, utilizes high pressure painting technology to exist
Pile tube inner-wall spraying DPS or heavy corrosion protection epoxy powder coating prepare prefabricated tubular pile, carry out the anti-of prefabricated tubular pile pile lining simultaneously
Ooze, anticorrosive work；
(2) on-the-spot piling: after smooth for site preparation, using total powerstation guide pile standard shaft line, Static pressure pile driver carries out piling,
Glue after clearing up the inwall of prefabricated tubular pile during piling at pipe pile joint in the range of upper and lower pile tube each 100mm height
Pasting a joint antiseepage pipe, pile tube seam crossing jacks seals levelling and full weld；
(3) heat-exchange system is installed: after on-the-spot piling terminates, by the Stake head handling of prefabricated tubular pile to designed elevation, scene is tied up
Prick support, PE heat-exchange tube and liquid injection pipe, and support, PE heat-exchange tube are inserted together with liquid injection pipe the tube core of prefabricated tubular pile
In, and be fixed on end plate by fixing reinforcement welding, before PE heat-exchange tube inserts tube core, check PE heat exchange
The sealing of pipe, the air pressure being passed through 0.9MPa in heat-exchange tube carries out pressure testing, observes Pressure gauge and keeps 30min, with pressure
It is qualified that power is not reduced to；
(4) tube core conductive fluid perfusion: tube core conductive fluid is pumped in tube core, according to effusion meter and the piezometer of the fluid injection mouth of pipe
Control the tube core conductive fluid amount of pouring into, and reserve m% tube core conductive fluid volume expansion space by formula m=Δ e × Δ T × 100, its
The tube core conductive fluid coefficient of expansion that middle Δ e refers in heat exchanging process under different temperatures difference is poor；Δ T refers to that the stake of this energy pipe carries out heat friendship
The temperature difference of tube core conductive fluid when changing；
(5) core is filled out on stake top: with 50 side's speed hourly in the tube core in the range of steel plate torr to prefabricated tubular pile stake top mark height
Degree pours slightly expanded concrete, it is ensured that concrete pouring quality；Stake top is filled out during core PE heat-exchange tube import, PE heat exchange
Pipe outlet and liquid injection pipe import are protected, and blocked, want during filling out core in take refuge construction chip or concrete entrance pipe
Ensure that the air pressure of PE heat-exchange tube does not drops in 15min, complete the construction of novel terrestrial energy pile tube.
This utility model compared with prior art, has the advantage that one is prefabricated tubular pile pile concrete and heat exchange
Pipe separates, and transmits heat by tube core conductive fluid, and heat exchange area is big, avoids the product of concentrated stress during pile body stress deformation
Raw；Two it is PE heat exchanger tube by effective heat exchange distance colligation, is fixed on support, reduce the heat interference between arm, improve and change
The thermal efficiency is high；Three is that working procedure is simple, and heat-exchange tube can after piling terminates quick insertion hole of post in-core, hence it is evident that shorten
Duration；Four is that tube core conductive fluid selects the water or low-cost heat conduction oils being easy to gather materials on the spot, and irrigates heat conduction with liquid injection pipe
Liquid is convenient, easily-controllable, reduces construction costs；Its simple in construction, easy to use, low cost, heat exchange efficiency is high, safe and reliable, environment
Friendly.
Accompanying drawing illustrates:
Fig. 1 is agent structure principle schematic of the present utility model.
Fig. 2 is that schematic diagram is arranged in the boring of steel plate torr described in the utility model.
Fig. 3 is structural representation at pipe pile joint described in the utility model.
Detailed description of the invention:
Below by embodiment and combine accompanying drawing the utility model is described in further detail.
Embodiment:
The agent structure of prefabricated geothermal energy pile tube described in the present embodiment include prefabricated tubular pile 1, stake end 2, impervious material 3,
Joint antiseepage pipe 4, full weld joint 5, PE heat-exchange tube 6, liquid injection pipe 7, level set distributive pipe 8, effusion meter 9, steel plate torr 10, bottom
Bar frame 11, upper reinforcement rack 12, cushion cap 13, slightly expanded concrete 14, PE heat-exchange tube import 15, liquid injection pipe import
16, pillar 17, tube core conductive fluid 18, piezometer 19, PE heat-exchange tube outlet 20, fixing reinforcing bar 21 and end plate 22；Prefabricated pipe
Stake end 2 bottom stake 1 is for closed configuration or is provided with pile tip with closed opening, the inwall of prefabricated tubular pile 1 is coated with impervious material 3, keeps away
Exempt from the conductive fluid in prefabricated tubular pile 1 tube core to pile shaft material and the erosion of internal reinforcing bar；Inwall at the pipe pile joint of prefabricated tubular pile 1
It is pasted with the joint antiseepage pipe 4 of a length of 200mm, it is to avoid the conductive fluid leakage pollution to underground environment in prefabricated tubular pile 1 tube core
Or on surrounding soil mechanical property and the impact of stake effective heat exchange area；The seam crossing of prefabricated tubular pile 1 is provided with full weld joint 5,
Full weld joint 5 uses jacks to seal levelling and full weld；Lower rebar rack 11 and upper reinforcement rack 12 combination constitute support,
Rack surface is smeared anticorrosive coat and is welded on end plate 22 by fixing reinforcing bar 21；Lower rebar rack 11 and upper reinforcement net
The boundary of frame 12 is equipped with the steel plate torr 10 of circular configuration, and steel plate torr 10 is apart from 1 top mark height 2m of prefabricated tubular pile；Lower rebar net
Frame 11 is made up of the vertical muscle colligation of diameter 6mm, the stirrup of spacing 200mm and four diameter 10mm, for by effective heat exchange distance
Colligation and fixing PE heat-exchange tube 6, it is to avoid (arm refers to that 2 to 3 PE heat-exchange tubes insert tube core to the arm of PE heat-exchange tube
Time, if distance the most closely can produce thermal resistance effect, can not be used in figure and mark) distance too near generation heat interference；Upper reinforcement net
Frame 12 is made up of the vertical muscle colligation of diameter 8mm, the stirrup of spacing 150mm and six roots of sensation diameter 20mm, is used for fixing PE heat-exchange tube
6；Upper reinforcement rack 12 stretches out prefabricated tubular pile 1 top and inserts the part of cushion cap 13 as joint bar, and joint bar anchorage length is according in advance
The requirement of prestressed concrete pile tube " 10G409 national building standard design atlas " is arranged, and prefabricated tubular pile 1 and cushion cap 13 are by inserting
Muscle connects；PE heat-exchange tube 6 and liquid injection pipe 7 are all fixed by support, and the level set being each passed through cushion cap 13 and ground divides water
Pipe 8 connects, and the seam of PE heat-exchange tube 6 and liquid injection pipe 7 and level set distributive pipe 8 is respectively provided with effusion meter 9 and piezometer 19,
PE heat-exchange tube 6 is for through heat exchange fluid, and tube core conductive fluid 18 is injected in the tube core of prefabricated tubular pile 1 by liquid injection pipe 7, will be pre-
Heat transfer is carried out between shallow layer geothermal energy and PE heat-exchange tube 6 that tubulation stake 1 pile body transmits；Steel plate torr 10 to prefabricated tubular pile 1
The tube core of top elevation range is inoculated with the slightly expanded concrete 14 of C35, and slightly expanded concrete 14 is cast in upper reinforcement rack 12
Together, improve the top load-carrying properties of prefabricated tubular pile 1, seal tube core conductive fluid 18 simultaneously；Anticorrosion is smeared in the bottom of steel supporting plate 10
Layer and reserved three borings respectively as PE heat-exchange tube import 15, PE heat-exchange tube outlet 20 and liquid injection pipe import 16, three
Drill hole is mounted on pillar 17, is used for protecting PE heat-exchange tube 6 and liquid injection pipe 7 from steel plate torr 10 and top microdilatancy coagulation
The extruding of soil 14 and infringement, pillar 17 uses the fluid sealant cementation of fissures.
Prefabricated tubular pile 1 described in the present embodiment is in existing prefabricated tubular pile technology, utilizes high pressure painting technology prefabricated
Pile tube 1 inner-wall spraying impervious material 3 is made, and includes prefabricated reinforced concrete pile tube and steel-pipe pile according to pile shaft material, the most in advance
Concrete tubular pile inner-wall spraying processed has two layer depth permeable crystalline waterproofing materials (DPS)；The inside and outside wall spraying heavy antisepsis of steel-pipe pile
Epoxide powder coating.
Tube core conductive fluid 18 described in the present embodiment selects water or low-cost heat conduction oils.
The Specific construction process of prefabricated geothermal energy pile tube described in the present embodiment includes following five steps:
(1) pile tube is prefabricated: adds barrier technology on the basis of existing prefabricated tubular pile technology, utilizes high pressure painting technology to exist
Pile tube inner-wall spraying DPS or heavy corrosion protection epoxy powder coating prepare prefabricated tubular pile 1, carry out prefabricated tubular pile 1 pile lining simultaneously
Antiseepage, anticorrosive work；
(2) on-the-spot piling: after smooth for site preparation, using total powerstation guide pile standard shaft line, Static pressure pile driver carries out piling,
Glue after clearing up the inwall of prefabricated tubular pile 1 during piling at pipe pile joint in the range of upper and lower pile tube each 100mm height
Pasting a joint antiseepage pipe 4, pile tube seam crossing jacks seals levelling and full weld；
(3) heat-exchange system is installed: after on-the-spot piling terminates, tied up to designed elevation, scene by the Stake head handling of prefabricated tubular pile 1
Prick support, PE heat-exchange tube 6 and liquid injection pipe 7, and support, PE heat-exchange tube 6 are inserted together with liquid injection pipe 7 prefabricated tubular pile 1
In tube core, and the fixing reinforcing bar 21 passing through upper reinforcement rack 12 top is welded on end plate 22 and is fixed, and hands in PE heat
Changing the sealing checking PE heat-exchange tube 6 before pipe inserts tube core, the air pressure being passed through 0.9MPa in heat-exchange tube is carried out
Pressure testing, observes Pressure gauge and keeps 30min, and it is qualified not reduce to pressure；
(4) tube core conductive fluid perfusion: tube core conductive fluid is pumped in tube core, according to effusion meter and the piezometer of the fluid injection mouth of pipe
Control tube core conductive fluid 14 amount of pouring into, and reserve m% tube core conductive fluid volume expansion space by formula m=Δ e × Δ T × 100,
The tube core conductive fluid coefficient of expansion that wherein Δ e refers in heat exchanging process under different temperatures difference is poor；Δ T refers to that the stake of this energy pipe carries out heat
The temperature difference of tube core conductive fluid during exchange；
(5) core is filled out on stake top: hourly with 50 sides in the tube core in the range of 1 top mark height of steel plate torr 10 to prefabricated tubular pile
Speed pours slightly expanded concrete, it is ensured that concrete pouring quality；Stake top is filled out during core PE heat-exchange tube import 15, PE heat
Exchange pipe outlet 20 and liquid injection pipe import 16 are protected, and blocked, fill out core in take refuge construction chip or concrete entrance pipe
During the air pressure of PE heat-exchange tube 6 to be ensured do not drop in 15min, complete the construction of novel terrestrial energy pile tube.
Claims (3)
1. a prefabricated geothermal energy pile tube, it is characterised in that agent structure includes prefabricated tubular pile, stake end, impervious material, joint
Antiseepage pipe, full weld joint, PE heat-exchange tube, liquid injection pipe, level set distributive pipe, effusion meter, steel plate torr, lower rebar rack, on
Portion's bar frame, cushion cap, slightly expanded concrete, PE heat-exchange tube import, liquid injection pipe import, pillar, tube core conductive fluid, pressure
The outlet of meter, PE heat-exchange tube, fixing reinforcing bar and end plate；Stake end bottom prefabricated tubular pile is closed configuration or is provided with closing pile
Point, the inwall of prefabricated tubular pile is coated with impervious material, and at the pipe pile joint of prefabricated tubular pile, inwall is pasted with a length of 200mm's
Joint antiseepage pipe, the seam crossing of prefabricated tubular pile is provided with full weld joint, lower rebar rack and the combination of upper reinforcement rack and constitutes
Support, support by fixing reinforcement welding on end plate；The boundary of lower rebar rack and upper reinforcement rack is equipped with circle
The steel plate torr of shape structure, steel plate torr distance prefabricated tubular pile stake top mark height 2m；Lower rebar rack is by diameter 6mm, spacing 200mm
The vertical muscle colligation of stirrup and four diameter 10mm is constituted, and upper reinforcement rack is by diameter 8mm, the stirrup of spacing 150mm and the six roots of sensation
The vertical muscle colligation of diameter 20mm is constituted, and upper reinforcement rack stretches out prefabricated tubular pile top and inserts the part of cushion cap as joint bar, in advance
Tubulation stake is connected by joint bar with cushion cap；PE heat-exchange tube and liquid injection pipe are all fixed by support, and are each passed through cushion cap and ground
The level set distributive pipe in face connects, the seam of PE heat-exchange tube and liquid injection pipe and level set distributive pipe be respectively provided with effusion meter and
Piezometer, tube core conductive fluid is injected in the tube core of prefabricated tubular pile by liquid injection pipe import, and steel plate torr to prefabricated tubular pile stake top mark is high
The tube core of scope is inoculated with slightly expanded concrete, together with slightly expanded concrete is cast in upper reinforcement rack, and the bottom of steel supporting plate
Smear anticorrosive coat and reserved three borings export and liquid injection pipe import respectively as PE heat-exchange tube import, PE heat-exchange tube, three
Individual drill hole is mounted on pillar.
The most prefabricated geothermal energy pile tube, it is characterised in that described prefabricated tubular pile includes precast reinforced mixed
Solidifying soil pile tube and steel-pipe pile, wherein prefabricated concrete pipe pile inner-wall spraying has two layer depth permeable crystalline waterproofing materials；Steel-pipe pile
Inside and outside wall spraying heavy corrosion protection epoxy powder coating.
The most prefabricated geothermal energy pile tube, it is characterised in that described tube core conductive fluid selects water or heat conduction
Oils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684445.0U CN205742162U (en) | 2016-06-30 | 2016-06-30 | A kind of prefabricated geothermal energy pile tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620684445.0U CN205742162U (en) | 2016-06-30 | 2016-06-30 | A kind of prefabricated geothermal energy pile tube |
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| Publication Number | Publication Date |
|---|---|
| CN205742162U true CN205742162U (en) | 2016-11-30 |
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ID=57379521
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| CN201620684445.0U Active CN205742162U (en) | 2016-06-30 | 2016-06-30 | A kind of prefabricated geothermal energy pile tube |
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| CN (1) | CN205742162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595837A (en) * | 2018-12-07 | 2019-04-09 | 湖南达道新能源开发有限公司 | Utilize the heat exchange device and application method of production string conduction underground heat energy |
| CN110118445A (en) * | 2019-04-18 | 2019-08-13 | 东南大学 | A kind of semi open model forced convection heat transfer energy pile tubular pole system |
-
2016
- 2016-06-30 CN CN201620684445.0U patent/CN205742162U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595837A (en) * | 2018-12-07 | 2019-04-09 | 湖南达道新能源开发有限公司 | Utilize the heat exchange device and application method of production string conduction underground heat energy |
| CN109595837B (en) * | 2018-12-07 | 2020-06-23 | 湖南达道新能源开发有限公司 | Heat energy conduction device for conducting underground heat energy by using oil reservoir casing and using method |
| CN110118445A (en) * | 2019-04-18 | 2019-08-13 | 东南大学 | A kind of semi open model forced convection heat transfer energy pile tubular pole system |
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