CN105698437B - A kind of U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method - Google Patents
A kind of U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method Download PDFInfo
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- CN105698437B CN105698437B CN201610065735.1A CN201610065735A CN105698437B CN 105698437 B CN105698437 B CN 105698437B CN 201610065735 A CN201610065735 A CN 201610065735A CN 105698437 B CN105698437 B CN 105698437B
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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
The present invention relates to a kind of U-joint, earth source heat pump and earth source heat pump construction method used for geothermal heat pump, the U-joint used for geothermal heat pump includes the connector with U-shaped through hole, and the lower end of the connector is provided with gravity block；The upper port of U-shaped through hole is connected with heat-transfer pipe；The connector is set in cylinder, and the outer wall of the connector is provided with multiple connection pawls in crescent, and the tip inside for connecting pawl is provided with link slot, and the width of link slot is more than the diameter that steel reinforcement cage uses reinforcing bar, is easy to joint to link on the reinforcing bar of steel reinforcement cage；Curved setting on the outside of pawl end is connected, avoids connection pawl from snapping into when mounted on steel reinforcement cage, causes device damage；According to the distribution arrangement of link slot during construction, heat-transfer pipe is rotated, is connected to link slot on the longitudinal reinforcement of steel reinforcement cage, and heat-transfer pipe is moved up, the transverse steel of steel reinforcement cage is touched to connection pawl, heat-transfer pipe and U-joint used for geothermal heat pump can not move.
Description
Technical field
The present invention relates to technical field of ground source heat pump, especially a kind of U-joint used for geothermal heat pump, earth source heat pump and Di Yuan
Heat pump construction method.
Background technology
Earth source heat pump is one of technology of building energy conservation emission reduction of state key popularization and application；It is that one kind utilizes buried under ground
Heat exchange of heat pipe and the earth underground shallow layer（<200m）Geothermal energy resources carry out the device of the cold exchange of heat, realize heat supply in winter, cooling in summer
Double effectses.But due to needing the work such as the embedded heat exchanger of drilling to cause the initial outlay expense phase of earth-source hot-pump system
To higher, so as to limit its popularization and application.Therefore, the technical scheme for seeking to reduce underground pipe drilling construction expense is engineering skill
The direction that art personnel lay siege to, and ground source heat pump technology obtain the necessary condition of wide popularization and application.
Heat-transfer pipe and joint are buried in engineering pile basis, so as to avoid the energy of the extra drilling construction expense of embedded heat-transfer pipe
Amount stake technical scheme is the direction that engineers and technicians make great efforts thinking in recent years；And how to bury heat-transfer pipe and joint in pile foundation
It is the key factor of the technical scheme；Correlative study shows, heat-transfer pipe and joint, Huo Zhe are arranged after the completion of prefabricated pile piling
Sink again after colligation heat-transfer pipe and joint on in-site pouring pile cages in drilling, in the continuous pouring concrete into stake holes,
Need to vibrate pipe inner concrete while extracting wall protection pipe, due to joint material density and the difference of concrete density, often
The vibrate situation that shifts up of the joint with concrete occurs, causes heat-transfer pipe flexural deformation or even ruptures, due to coagulation
Heat-transfer pipe and joint can not be repaired after soil solidification, easily cause equipment install failure, can not utilize geothermal energy resources.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and are easy to fixed in work progress, prevent heat-transfer pipe from deforming
U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method.
In order to solve the above problems, the invention provides a kind of U-joint used for geothermal heat pump, including with U-shaped through hole
Connector, the lower end of the connector are provided with gravity block, are easy to sink joint；The upper port of U-shaped through hole is connected with heat-transfer pipe；Institute
State connector to set in cylinder, the outer wall of the connector is provided with multiple connection pawls in crescent, for by joint and reinforcing bar
Cage mutually links, and prevents joint from being shifted up in work progress.
Further, the tip inside of the connection pawl is provided with link slot, and the width of the link slot, which is more than steel reinforcement cage, to be made
The diameter of reinforcing bar, it is easy to joint to link on the reinforcing bar of steel reinforcement cage；Curved setting on the outside of the connection pawl end, is avoided
Connection pawl is snapped on steel reinforcement cage when mounted, causes device damage.
Further, the connection pawl is 3, is evenly distributed on the outer wall of cylindrical connector, increase connection pawl and steel
The probability that muscle links, is easily installed.
A kind of earth source heat pump, it uses above-mentioned U-joint used for geothermal heat pump to be attached.
The construction method of above-mentioned earth source heat pump comprises the following steps：
（1）Verify plan and set pile foundation and the strata condition of embedded earth source heat pump underground heat-transfer pipe, including in boundary of works area
Clay distribution and mechanical characteristic, soil layer thermal energy storage amount, design energy piles form, energy piles depth and diameter of steel tube, heat transfer
Pipe diameter parameter.
（2）According to design requirement, the steel reinforcement cage being made up of transverse steel and longitudinal reinforcement is made, and be embedded in steel reinforcement cage
PVC plastic honeycomb duct is as interim retaining wall.
（3）The lower end of heat-transfer pipe is connected by the U-joint used for geothermal heat pump with connection pawl, and by heat-transfer pipe and ground
Source heat pump U-joint is along PVC plastic honeycomb duct implanted reinforced bar cage；Carry out the sealing that overall heat-transfer pipe is tested in water flowing.
（4）Using immersed tube method formed drilling or using mud off method formed drilling, under be placed with PVC plastic
Expect the steel reinforcement cage of honeycomb duct to projected depth.
（5）Pour into a mould concrete and complete the construction of bored concrete pile pile body, before vibrated concrete is stirred, by PVC plastic honeycomb duct
Extract to U-joint used for geothermal heat pump and be in outside PVC plastic honeycomb duct bottom port upwards；According to the distribution side of link slot
To, heat-transfer pipe is rotated, is connected to link slot on the longitudinal reinforcement of steel reinforcement cage, then heat-transfer pipe is moved up, connect to pawl is connected
The transverse steel of steel reinforcement cage is contacted, now heat-transfer pipe and U-joint used for geothermal heat pump can not move, and be stirred the coagulation that vibrates
Soil, complete to bury the construction of heat-transfer pipe and U-joint used for geothermal heat pump in filling pile cage of reinforcement.
The technique effect of invention：（1）The U-joint used for geothermal heat pump of the present invention, relative to prior art, in connector
Outer wall is provided with multiple connection pawls, for joint mutually to be linked with steel reinforcement cage, prevents joint from being shifted up in work progress；
（2）3 connection pawls are evenly distributed on the outer wall of cylindrical connector, the probability that increase connection pawl links with reinforcing bar, are easy to pacify
Dress；（3）According to the distribution arrangement of link slot during installation, heat-transfer pipe is slightly rotated, longitudinal steel of steel reinforcement cage is connected to link slot
On muscle, and heat-transfer pipe is slowly moved up, the transverse steel of steel reinforcement cage is touched to pawl is connected, heat-transfer pipe and used for geothermal heat pump
U-joint can not move；（4）Curved setting on the outside of pawl end is connected, avoids connection pawl from snapping into when mounted on steel reinforcement cage, makes
Forming apparatus damages.
Brief description of the drawings
The present invention is described in further detail with reference to Figure of description：
Fig. 1 is the schematic diagram of present invention U-joint used for geothermal heat pump；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the scheme of installation of present invention U-joint used for geothermal heat pump and heat-transfer pipe.
In figure：Connector 1, U-shaped through hole 11, gravity block 2, heat-transfer pipe 3, pawl 4 is connected, link slot 41, is connected outside pawl end
Side 42, drilling 5, longitudinal reinforcement 61, transverse steel 62, PVC plastic honeycomb duct 8, concrete 9.
Embodiment
Embodiment 1 as shown in Figure 1 to Figure 2, the U-joint used for geothermal heat pump of the present embodiment, including with U-shaped through hole 11
Cylindrical connector 1, the lower end of the connector 1 is provided with gravity block 2, is easy to sink joint；The upper port of U-shaped through hole 1 with
Heat-transfer pipe 3 is connected；The outer wall of the connector 1 is evenly distributed with 3 connection pawls 4 in crescent, the tip inside tool of connection pawl 4
Provided with link slot 41,42 cambers are set on the outside of connection pawl end, and the width of link slot 41 uses bar diameter by steel reinforcement cage
2 times, be easy to joint to link on the reinforcing bar of steel reinforcement cage.
As shown in figure 3, comprise the following steps using the earth source heat pump construction method of above-mentioned U-joint used for geothermal heat pump：
（1）Verify plan and set pile foundation and the strata condition of embedded earth source heat pump underground heat-transfer pipe, including in boundary of works area
Clay distribution and mechanical characteristic, soil layer thermal energy storage amount, design energy piles form, energy piles depth and diameter of steel tube, heat transfer
Pipe diameter parameter.
（2）According to design requirement, the steel reinforcement cage being made up of transverse steel 62 and longitudinal reinforcement 61 is made, and in steel reinforcement cage
It is embedded to PVC plastic honeycomb duct 8 and is used as interim retaining wall.
（3）The lower end of heat-transfer pipe 3 is connected by the U-joint used for geothermal heat pump with connection pawl 4, and by heat-transfer pipe 3
With U-joint used for geothermal heat pump along the implanted reinforced bar cage of PVC plastic honeycomb duct 8；Carry out the sealing that overall heat-transfer pipe is tested in water flowing
Property.
（4）Drilling 5 is formed using the method for mud off, under be placed with the steel reinforcement cage of PVC plastic honeycomb duct 8 to designing depth
Degree.
（5）Pour into a mould concrete and complete the construction of bored concrete pile pile body, before vibrated concrete 9 is stirred, by PVC plastic honeycomb duct
8 upward extract to U-joint used for geothermal heat pump are in outside the bottom port of PVC plastic honeycomb duct 8；According to the distribution of link slot 41
Direction, it is slight to rotate heat-transfer pipe 3, when link slot 41 is connected on the longitudinal reinforcement 61 of steel reinforcement cage, then by heat-transfer pipe 3 slowly to
Upper movement, the transverse steel 62 of steel reinforcement cage is touched to connection pawl 4, now heat-transfer pipe 3 and U-joint used for geothermal heat pump can not move
It is dynamic, vibrated concrete 9 is then stirred, completes to bury applying for heat-transfer pipe and U-joint used for geothermal heat pump in filling pile cage of reinforcement
Work.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, it can also be made on the basis of the above description
Its various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
Among the obvious changes or variations that bright spirit is extended out is still in protection scope of the present invention.
Claims (1)
1. a kind of earth source heat pump construction method, it is characterised in that the earth source heat pump includes U-joint, and U-joint includes：With U
Shape through hole（11）Connector（1）, the connector（1）Lower end be provided with gravity block（2）；U-shaped through hole（11）Upper port and biography
Heat pipe（3）It is connected；The connector（1）Outer wall be provided with multiple connection pawls in crescent（4）, the connection pawl（4）End
Inner side is provided with link slot（41）, the link slot（41）Width be more than steel reinforcement cage and use the diameter of reinforcing bar, for by joint
Mutually linked with steel reinforcement cage；
Described construction method comprises the following steps：
（1）Verify plan and set pile foundation and the strata condition of embedded earth source heat pump underground heat-transfer pipe, including soil layer in boundary of works area
Distribution and mechanical characteristic, soil layer thermal energy storage amount, design energy piles form, energy piles depth and diameter of steel tube, heat-transfer pipe are straight
Footpath parameter；
（2）According to design requirement, make by transverse steel（62）And longitudinal reinforcement（61）The steel reinforcement cage of composition, and in steel reinforcement cage
It is embedded to PVC plastic honeycomb duct（8）As interim retaining wall；
（3）By heat-transfer pipe（3）Lower end pass through with connection pawl（4）U-joint used for geothermal heat pump connection, and by heat-transfer pipe
（3）With U-joint used for geothermal heat pump along PVC plastic honeycomb duct（8）In implanted reinforced bar cage；Carry out water flowing and test overall heat-transfer pipe
（3）Sealing；
（4）Drilling is formed using the method for immersed tube（5）Or drilling is formed using the method for mud off（5）, under be placed with PVC
Plastic honeycomb pipe（8）Steel reinforcement cage to projected depth；
（5）Pour into a mould concrete（9）The construction of bored concrete pile pile body is completed, before vibrated concrete is stirred, by PVC plastic honeycomb duct
（8）Extract upwards to U-joint used for geothermal heat pump and be in PVC plastic honeycomb duct（8）Outside bottom port；According to link slot（41）
Distribution arrangement, rotate heat-transfer pipe（3）, to link slot（41）It is connected to the longitudinal reinforcement of steel reinforcement cage（61）On, then by heat-transfer pipe
（3）Move up, to connection pawl（4）Touch the transverse steel of steel reinforcement cage（62）, now heat-transfer pipe（3）With U used for geothermal heat pump
Shape joint can not move, and be stirred vibrated concrete（9）, complete to bury heat-transfer pipe and U used for geothermal heat pump in filling pile cage of reinforcement
The construction of shape joint.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711189945.2A CN107965945B (en) | 2016-01-29 | 2016-01-29 | A kind of earth source heat pump |
| CN201610065735.1A CN105698437B (en) | 2016-01-29 | 2016-01-29 | A kind of U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method |
| CN201711190486.XA CN107917552B (en) | 2016-01-29 | 2016-01-29 | It is easy to the construction method of earth source heat pump that is fixed, preventing heat-transfer pipe from deforming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065735.1A CN105698437B (en) | 2016-01-29 | 2016-01-29 | A kind of U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711190486.XA Division CN107917552B (en) | 2016-01-29 | 2016-01-29 | It is easy to the construction method of earth source heat pump that is fixed, preventing heat-transfer pipe from deforming |
| CN201711189945.2A Division CN107965945B (en) | 2016-01-29 | 2016-01-29 | A kind of earth source heat pump |
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| Publication Number | Publication Date |
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| CN105698437A CN105698437A (en) | 2016-06-22 |
| CN105698437B true CN105698437B (en) | 2017-11-10 |
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| CN201711189945.2A Active CN107965945B (en) | 2016-01-29 | 2016-01-29 | A kind of earth source heat pump |
| CN201711190486.XA Active CN107917552B (en) | 2016-01-29 | 2016-01-29 | It is easy to the construction method of earth source heat pump that is fixed, preventing heat-transfer pipe from deforming |
| CN201610065735.1A Active CN105698437B (en) | 2016-01-29 | 2016-01-29 | A kind of U-joint used for geothermal heat pump, earth source heat pump and earth source heat pump construction method |
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| CN201711189945.2A Active CN107965945B (en) | 2016-01-29 | 2016-01-29 | A kind of earth source heat pump |
| CN201711190486.XA Active CN107917552B (en) | 2016-01-29 | 2016-01-29 | It is easy to the construction method of earth source heat pump that is fixed, preventing heat-transfer pipe from deforming |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107761720B (en) * | 2017-11-14 | 2019-04-30 | 深圳中大经纬地热开发科技有限公司 | The structure and its construction method of earth source heat pump bored concrete pile |
| CN115143653B (en) * | 2022-06-29 | 2024-04-26 | 西南石油大学 | Parallel pipe circulation geothermal heat extraction structure and process scheme |
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- 2016-01-29 CN CN201711189945.2A patent/CN107965945B/en active Active
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- 2016-01-29 CN CN201610065735.1A patent/CN105698437B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107965945A (en) | 2018-04-27 |
| CN107965945B (en) | 2019-08-09 |
| CN107917552A (en) | 2018-04-17 |
| CN107917552B (en) | 2019-07-30 |
| CN105698437A (en) | 2016-06-22 |
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