CN208547147U - A kind of underground buried tube heat-exchanger rig - Google Patents
A kind of underground buried tube heat-exchanger rig Download PDFInfo
- Publication number
- CN208547147U CN208547147U CN201821042373.5U CN201821042373U CN208547147U CN 208547147 U CN208547147 U CN 208547147U CN 201821042373 U CN201821042373 U CN 201821042373U CN 208547147 U CN208547147 U CN 208547147U
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- CN
- China
- Prior art keywords
- pipe
- foundation pit
- exchanger rig
- inclined boreholes
- tube heat
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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
Abstract
A kind of underground buried tube heat-exchanger rig, including the central manifold being arranged in foundation pit and spiral collector, and the inclined boreholes and one group of perpendicularly buried pipe that pass through the radial laying of the buried multiple groups of foundation pit；One end of the inclined boreholes and perpendicularly buried pipe is connected to central manifold, the other end and spiral header in communication.A kind of underground buried tube heat-exchanger rig of the utility model occupies place and destruction is smaller, construction efficiency is high, at low cost by using assembled foundation pit construction technique；Pipe laying avoids the surface layer soil body using radial layout stracture is tilted, small on underground utilities influence, and influenced by ambient temperature small and bigger closer to deep heat diffusion capabilities, heat transfer effect is more preferable；It uses the embedded intensification of perpendicularly buried pipe and as main heat exchange pipe, can further make full use of underground heat source；Earth's surface certain depth can be used as non-provisional design of foundation pit and take not back-filling way, use after construction as storage cellar or rainwater recycle well etc..
Description
Technical field
The utility model belongs to technical field of ground source heat pump, designs a kind of underground buried tube heat-exchanger rig.
Background technique
Ground-source heat pump system is a kind of technology for carrying out heating refrigeration for building facility using shallow layer geothermal energy.Underground heat exchange
Device is the important composition of ground-source heat pump system, and the height of heat exchange efficiency directly influences the COP of ground-source heat pump system, even
Whether influence can complete actually required heat exchange amount.Common underground heat-exchanger device includes soil source heat pump and underground water
Source heat pump, wherein soil source heat pump often uses pipe laying form take heat, including horizontal pipe laying, Vertical U-type (single U, double U,
Three U) pipe laying, vertical pipes formula pipe laying and oblique pipe laying.Horizontal pipe laying occupied area is larger, and it is unbalanced to exchange heat, and often can only
Heat exchange and hot water for life as single cropping use.Although perpendicularly buried pipe can save laying area, needs are still faced
The problem of extensive surface drilling destroys, the occupancy and destruction for earth's surface are more serious, and are dfficult to apply to underground utilities
Complicated region；Meanwhile hang down underground pipe it is generally existing with heat-exchange working medium flowing distance increase and heat exchange efficiency gradually decreases
The problem of, by taking the cold water after inner tube flows into the outflow heat exchange of hot water outer tube as an example, the highest fluid of temperature always exchanges heat in lowermost end,
Cause the heat exchange of bottom maximum, so bottom end needs the heat exchange radius bigger compared with top, and the radius that exchanges heat needed for top
It is smaller, and if it is considered that heat exchange radius required for bottom just needs further expansion construction site.
Utility model content
The purpose of the utility model is to overcome the defect of the prior art, provide that a kind of construction technology is succinct, ground occupies
With destroy small, heat exchange range is big, Soil Temperature Field utilization rate height, good effect of heat exchange, foundation pit can secondary use underground buried tube
Heat-exchanger rig.
To achieve the above object, the utility model adopts the technical scheme that
A kind of underground buried tube heat-exchanger rig including the central manifold 4 being arranged in foundation pit 3 and spiral collector 5, and passes through
The inclined boreholes 6 and one group of perpendicularly buried pipe 7 of the buried more radial layings of foundation pit 3, inclined boreholes 6 and vertical
One end of pipe laying 7 is connected to central manifold 4, and the other end is connected to spiral collector 5.
Further, the screw diameter of the spiral collector 5 is less than the diameter of foundation pit 3, and the inner wall along foundation pit 3 is vertically arranged；
The bottom end closure of the spiral collector 5, upper end are equipped with spiral collector inlet/outlet 51.
Further, the central manifold 4 include multiple branch pipes 41 being vertically arranged, the bottom end closure of the branch pipe 41, on
End is connected to central manifold inlet/outlet 42.
Further, the more inclined boreholes 6 are located in multiple vertical planes, and the multiple vertical plane angularly divides circle equally
Week, the distribution of several inclined boreholes 6 or so in each vertical plane are set to spiral collector two sides, several inclined boreholes 6
Hole angle bottom-up angularly increases along the screw pitch of spiral collector 9.
Further, helical lengths are outside from bottom to top etc. along the helix of spiral collector for the more inclined boreholes 6
Diverging arrangement, and its hole angle angularly increases.
Further, the more inclined boreholes 6 divide for multiple groups, according to the lead of the helix of spiral collector, each lead
Several interior inclined boreholes 6 are one group；The hole angle of every group of several inclined boreholes 6 is identical, and drift azimuth is in circumference
It is interior uniformly distributed；The dislocation arrangement of two adjacent groups inclined boreholes；The hole angle of multiple groups inclined boreholes angularly increases from below to up.
Further, the length of the perpendicularly buried pipe 7 and/or diameter are greater than the length and/or diameter of inclined boreholes 6.
Further, the inclined boreholes 6 and perpendicularly buried pipe 7 are list U pipe, double U pipe or three U pipe.
Further, the inclined boreholes 6 and perpendicularly buried pipe 7 are casing, and the heat exchanging fluid flows into simultaneously from the inner tube of casing
It is flowed out from outer tube.
Further, the foundation pit 3 is steel construction assembled foundation pit.
Further, the outside of the central manifold 4 in foundation pit and spiral collector 5 is equipped with heat insulation layer, base after the completion of construction
Hole 3 is backfill structure.
Further, the outside of the central manifold 4 in foundation pit and spiral collector 5 is equipped with heat insulation layer, base after the completion of construction
3 lower parts are cheated as backfill structure, top is equipped with supporting construction and heat insulation layer.
A kind of underground buried tube heat-exchanger rig of the utility model occupies place by using assembled foundation pit construction technique
Smaller with destroying, construction efficiency is high, at low cost；Pipe laying avoids the surface layer soil body, to underground using radial layout stracture is tilted
Pipeline influence is small, and influenced by ambient temperature small and bigger closer to deep heat diffusion capabilities, heat transfer effect is more preferable；By perpendicularly buried pipe
It is embedded to deepen and used as main heat exchange pipe, it can further make full use of underground heat source；Earth's surface certain depth can be used as non-face
When design of foundation pit and take not back-filling way, used after construction as storage cellar or rainwater recycle well etc..
Detailed description of the invention
Fig. 1 is a kind of main view of underground buried tube heat-exchanger rig in embodiment；
Fig. 2 is a kind of top view of underground buried tube heat-exchanger rig in embodiment；
Fig. 3 is a kind of left view of underground buried tube heat-exchanger rig in embodiment.
Description of symbols: the ground 1-, 2- backfill face, 3- foundation pit, 4- central manifold, 41- branch pipe 41,42- central manifold
Inlet/outlet, 5- spiral collector, 51- spiral collector inlet/outlet, 6- inclined boreholes, 7- perpendicularly buried pipe, 71- connecting tube.
Specific embodiment
Below in conjunction with attached drawing 1 to 3, a kind of specific embodiment party of underground buried tube heat-exchanger rig of the utility model is further illustrated
Formula.A kind of underground buried tube heat-exchanger rig of the utility model is not limited to the following description.
Embodiment 1:
The present embodiment provides a kind of specific structure of underground buried tube heat-exchanger rig.
As shown in Figures 1 to 3, a kind of underground buried tube heat-exchanger rig, including the central manifold 4 being arranged in foundation pit 3 and spiral
Collector 5, and by the inclined boreholes 6 and one group of perpendicularly buried pipe 7 of the buried more radial layings of foundation pit 3, it is described
One end of inclined boreholes 6 and perpendicularly buried pipe 7 is connected to central manifold 4, and the other end is connected to spiral collector 5.Preferably, it vertically buries
Pipe 7 can also be connected to by branch pipe 71 with central manifold 4 and/or spiral collector 5.Inflow and outflow collector be set as screw type and
Vertical two kinds of shape reduces the contact area of water inlet collector and water outlet collector, to reduce the purpose is to increase distance between the two
Heat exchange (heat short circuit) between collector；Simultaneously as drilling machine will be placed on foundation pit center in work progress, therefore collector is arranged
In order to constructing around foundation pit walls；The flow direction of inlet/outlet can flexible setting as needed.Fig. 1 and Fig. 2 only illustrate one
Inclined boreholes 6 in group vertical plane are as signal；Fig. 3 only illustrates perpendicularly buried pipe 7 as signal, does not show inclined boreholes 6
Structure.
The central manifold 4 includes multiple branch pipes 41 being vertically arranged, the bottom end closure of the branch pipe 41, upper end and center
Collector inlet/outlet 42 is connected to.Specifically, 2,4 or 6 etc. can be uniformly arranged as needed (due to only illustrating in attached drawing
The inclined shaft of one perpendicular, so show only 2 vertical collector branch pipes 4).The screw diameter of the spiral collector 5 is small
In the diameter of foundation pit 3, the inner wall along foundation pit 3 is vertically arranged；The bottom end closure of the spiral collector 5, upper end are equipped with spiral collector
Inlet/outlet 51.
With the inclined boreholes in each vertical plane for one group, every group of inclined boreholes include more inclined boreholes 6, and described more
The left and right settings and be from bottom to top in angularly increased fan according to the screw pitch of spiral collector 9 in same vertical plane of inclined boreholes 6
Shape distribution.Specifically, for the inclined boreholes of each vertical plane, the pipe laying quantity of every side setting and the spiral of spiral collector 9
Enclose number it is identical, the embedded starting point of multiple inclined boreholes and the position of multiple spirals of spiral collector 9 are corresponding, thus its spacing also with
Screw pitch spacing is consistent；The embedded direction (i.e. the extending direction of pipe laying) of multiple inclined boreholes is distributed in not equal angular sector, to
It is distributed away from foundation pit directional divergence.What is shown as shown in figure 1 is one group of inclined boreholes 6, including two sides are 3 each, totally 6 inclinations are buried
Pipe 6, in the ever-reduced fan-shaped distribution of apex angle from top to bottom in middle vertical plane.Multiple groups inclined boreholes are in isogonism in horizontal plane
Degree distribution, as shown in Fig. 2, only illustrating one group of lateral inclined boreholes 6, can be further added by one group of longitudinal inclination on this basis
Pipe laying 6 forms the shape of " ten " font；Certainly, can also be used 3 groups or more group inclined boreholes 6, can according to heat exchange demand into
Row design.
The embedding manner of the inclined boreholes 6 can be set to a variety of interchangeable equivalent embodiments, for example, first
Kind, along helix (every certain helical length), diverging is arranged outward upwards since the most deep inclined boreholes 6 of buried depth,
Its hole angle angularly increases by well, and more inclined boreholes 6 form radial centered on foundation pit.
As another equivalent embodiments, the more inclined boreholes 6 divide for multiple groups, according to the helix of spiral collector
Lead, several inclined boreholes 6 in each lead are one group；The hole angle of every group of several inclined boreholes 6 is identical, well
Rectangle parallactic angle is uniformly distributed in circumference；The dislocation arrangement of two adjacent groups inclined boreholes；The hole angle of multiple groups inclined boreholes is from below to up etc.
Angle increases.Specifically, being one group (in namely circumferential direction one week by the well (by taking four wells as an example) in each lead along helical laying
Si Koujing), misplace between two groups arrangement, and every group of hole angle is equal, and successively increases every group of hole angle upwards.Specifically,
The second way is bottom-up to be followed successively by well 1,2,3,4,5,6,7,8..., hole angle and hole deviation by taking four wells in every lead as an example
Azimuth is as follows:
Wherein, lead refers to that dynamic point rotates a circle, the height risen vertically；Hole angle refers to what certain in oil-water well was put
Angle between central axes and earth plumb line, in the range of 0 °~180 °, hole angle is used to refer to the gradient of well track；Well
Rectangle parallactic angle refers to direction of the tangent line of borehole axis on horizontal plane.In above-mentioned equivalent embodiments, the first is more suitable
The more situation of inclined shaft number is closed, is more suitable for each circumferential four wells situation second.
As shown in figures 1 and 3, the perpendicularly buried pipe 7 uses the structure of double U pipes, naturally it is also possible to according to the intensive of U pipe
Degree and the set-up mode for taking 4 (distributions of foundation pit inscribed quadrilateral) or 6 (distribution of foundation pit inscribed hexagon).Preferably,
The length and/or diameter of the perpendicularly buried pipe 7 are greater than the length and/or diameter of inclined boreholes 6, so that perpendicularly buried pipe 7 be buried
Deepen and used as main heat exchange pipe, can further utilize underground heat source.
The inclined boreholes 6 and perpendicularly buried pipe 7 can be single U pipe, double U pipe or three U pipe structures, be also possible to casing knot
Structure.When using cannula structure, the heat exchanging fluid is flowed into from the inner tube of casing and is flowed out from outer tube.Since the present embodiment uses
The different oblique pipe laying mode of tilt angle, the distance between two groups of pipe layings increase, two as the distance of distance center increases
Temperature field between group pipe influence each other it is smaller, so heat exchanging fluid is flowed into outer tube outflow from inner tube using sleeve-like manner can be with
Soil Temperature Field is preferably utilized, pipe laying angle is uniformly arranged and pipe laying spacing may make that heat exchange is more sufficiently and balanced.
The foundation pit 3 is steel construction assembled foundation pit.Assembled foundation pit is a kind of construction pit excavation method, is chiefly used in shield
The excavation supporting of structure, push-bench butt shaft etc. works, and the advantage is that easy for construction, save the cost, safe and reliable and can return
Receive reuse etc..Mainly there are precast concrete and steel construction support pattern at present, the present embodiment is using prestressed steel structure circle
For shape, may be implemented while excavate while using prefabricated steel and apply prestressing force carry out supporting, and can foundation pit backfill before
Removal steel plate and recycling and reusing.After the completion of pipe laying sum aggregate pipe construction and connection, in the outside of central manifold 4 and spiral collector 5
Heat insulation layer is set, and foundation pit 3 is backfilled.As a preferred embodiment, only 3 lower part of foundation pit can also be returned
It fills out, supporting construction and heat insulation layer is arranged in top, uses after construction as storage cellar or rainwater recycle well etc..
Embodiment 2:
The present embodiment provides a kind of form of construction work using 1 described device of embodiment, the specific steps are as follows:
1, after carrying out place prospecting and the design of heat-exchange system structure, round prestressed steel structure assembled foundation pit is excavated.
2, removal bottom of foundation ditch part supporting, excavates angling hole using underground drill rig, and inclined boreholes 6 are placed in hole and are infused
Slurry backfill.
3, welding or other pipes are can be used into respectively with 5 connection of central manifold 4 and spiral collector in the both ends of inclined boreholes 6
Road routine connection type.
4, simultaneously removable part branch protects the backfill bottom of foundation ditch part soil body upwards, the construction of progress top inclined hole, more than repetition
The soil body until being backfilled at preset backfill face 2 by step.
5, carry out perpendicularly buried pipe 7 burial and construction, after the completion again by the both ends of perpendicularly buried pipe 7 respectively with central manifold 4 and
5 connection of spiral collector.
6, after central manifold 4 and spiral collector 5 being connected with ground heat pump system, collect centered on predetermined depth under earth's surface
Heat insulation measure is arranged in pipe 4 and spiral collector 5.
7, foundation pit is all backfilled；Or foundation pit remainder is subjected to supporting and heat insulation measure is set, as ground
The underground structures such as lower storage room or Rain water returning well use.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (10)
1. a kind of underground buried tube heat-exchanger rig, it is characterised in that: including the central manifold being arranged in foundation pit and spiral collector, with
And inclined boreholes and one group of perpendicularly buried pipe by the buried more radial layings of foundation pit；The inclined boreholes and hang down
One end of direct-buried pipe is connected to central manifold, the other end and spiral header in communication.
2. underground buried tube heat-exchanger rig according to claim 1, it is characterised in that: the screw diameter of the spiral collector is small
In the diameter of foundation pit, it is vertically arranged along foundation pit inner wall；The bottom end closure of the spiral collector, upper end are equipped with spiral collector entry/exit
The mouth of a river.
3. underground buried tube heat-exchanger rig according to claim 2, it is characterised in that: the central manifold includes multiple vertical
The branch pipe of setting, the bottom end closure of the branch pipe, upper end is connected to central manifold inlet/outlet.
4. underground buried tube heat-exchanger rig according to claim 3, it is characterised in that: the more inclined boreholes are located at multiple
In vertical plane, the multiple vertical plane angularly divides circumference equally, and several inclined boreholes in each vertical plane or so distribution is set
It is placed in spiral collector two sides, the hole angles of several inclined boreholes bottom-up angularly increases along the screw pitch of spiral collector.
5. underground buried tube heat-exchanger rig according to claim 3, it is characterised in that: the more inclined boreholes are along spiral
Helical lengths dissipate arrangement to the helix of collector outward from bottom to top etc., and its hole angle angularly increases.
6. underground buried tube heat-exchanger rig according to claim 3, it is characterised in that: the more inclined boreholes are divided into more
Group, according to the lead of the helix of spiral collector, several inclined boreholes in each lead are one group；Several of every group incline
The hole angle of oblique pipe laying is identical, and drift azimuth is uniformly distributed in circumference；The dislocation arrangement of two adjacent groups inclined boreholes；Multiple groups inclination is buried
The hole angle of pipe angularly increases from below to up.
7. the underground buried tube heat-exchanger rig according to any claim in claim 4 to 6, it is characterised in that: described to hang down
The length and/or diameter of direct-buried pipe are greater than the length and/or diameter of inclined boreholes.
8. underground buried tube heat-exchanger rig according to claim 7, it is characterised in that: the inclined boreholes and perpendicularly buried pipe are
Single U pipe, double U pipe or three U pipe.
9. underground buried tube heat-exchanger rig according to claim 8, it is characterised in that: the inclined boreholes and perpendicularly buried pipe are
Casing, the heat exchanging fluid are flowed into from the inner tube of casing and are flowed out from outer tube.
10. underground buried tube heat-exchanger rig according to claim 8 or claim 9, it is characterised in that: the foundation pit is steel construction assembly
Formula foundation pit；The outside of central manifold and spiral collector in the foundation pit is equipped with heat insulation layer, and foundation pit is back after the completion of construction
Fill out structure；The outside of central manifold and spiral collector in the foundation pit is equipped with heat insulation layer, foundation pit lower part after the completion of construction
To backfill structure, top is equipped with supporting construction and heat insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821042373.5U CN208547147U (en) | 2018-07-03 | 2018-07-03 | A kind of underground buried tube heat-exchanger rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821042373.5U CN208547147U (en) | 2018-07-03 | 2018-07-03 | A kind of underground buried tube heat-exchanger rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208547147U true CN208547147U (en) | 2019-02-26 |
Family
ID=65422367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821042373.5U Expired - Fee Related CN208547147U (en) | 2018-07-03 | 2018-07-03 | A kind of underground buried tube heat-exchanger rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208547147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677053A (en) * | 2020-05-22 | 2020-09-18 | 同济大学 | Cold region tunnel fire pipeline anti-freezing heat preservation system utilizing geothermal energy |
| CN116164166A (en) * | 2023-02-15 | 2023-05-26 | 长江生态环保集团有限公司 | Freezing construction auxiliary equipment and method for grooving buried pipe |
-
2018
- 2018-07-03 CN CN201821042373.5U patent/CN208547147U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677053A (en) * | 2020-05-22 | 2020-09-18 | 同济大学 | Cold region tunnel fire pipeline anti-freezing heat preservation system utilizing geothermal energy |
| CN116164166A (en) * | 2023-02-15 | 2023-05-26 | 长江生态环保集团有限公司 | Freezing construction auxiliary equipment and method for grooving buried pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190226 Termination date: 20200703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |