CN104154618B - Soil source heat pump system pipe laying method and soil source heat pump system - Google Patents
Soil source heat pump system pipe laying method and soil source heat pump system Download PDFInfo
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- CN104154618B CN104154618B CN201410425452.4A CN201410425452A CN104154618B CN 104154618 B CN104154618 B CN 104154618B CN 201410425452 A CN201410425452 A CN 201410425452A CN 104154618 B CN104154618 B CN 104154618B
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Abstract
The present invention provides a kind of soil source heat pump system pipe laying method and soil source heat pump system.The soil source heat pump system pipe laying method includes：Pipe laying is erected in pile foundation, the first heat exchanger tube is prefabricated in pile foundation, specifically include：First heat exchanger tube is previously positioned inside the steel reinforcement cage of pile foundation, then to casting concrete in steel reinforcement cage, to form pile foundation；Pipe laying is erected between pile foundation, by between the second heat exchanger tube embedment pile foundation；The first heat exchanger tube is connected with the second heat exchanger tube by level set pipe.Heat exchanger tube can be arranged in building bottom by the soil source heat pump system pipe laying method, effectively using the space of building bottom.
Description
Technical field
The present invention relates to soil source heat pump system, in particular to a kind of soil source heat pump system pipe laying method and soil
Earth source heat pump system.
Background technology
Soil source heat pump system can be divided into horizontal coiled pipe and vertical buried pipe according to the paving mode of its buried pipe heat exchange system.
For vertical buried pipe according to buried tube heat exchanger and building position relationship, the vacant lot pipe laying outside building can be divided into again, built
Build pipe laying in thing foundation bottom pile foundation, and three kinds of arrangements of pipe laying between building foundation bottom pile foundation.
At present, because technology and difficulty of construction are relatively low, outside building vacant lot arrangement Vertical pendulum tiltmeters application most
For universal, but with the quickening of urbanization process, the plot ratio of building is more and more lower, for the city of some building denses, only
The empty underground underground pipe around building is relied on, pipe laying quantity can not meet actual demand, which has limited soil source
The further popularization and application of heat pump.
Building bottom arrangement underground pipe can be effectively supplemented its pipe laying quantity.But arranged vertically between building pile foundation
, it is necessary to drilling well stringing in foundation soil between building pile foundation during pipe laying, its depth is general even up to a hundred as deep as tens meters
The changes of the construction operation to the building lot soil body such as rice, drilling well, backfill, inevitably to building foundation bearing capacity characteristic
Produce influence.And carry out design, construction technique and the conventional soil source heat pump engineering of building bottom arrangement underground pipe
Also there is very big difference.The method of existing vacant lot laying underground pipe can not be used as effectively reference.At present also without reasonable benefit/risk
Can building bottom arrange underground pipe method.
The content of the invention
The present invention is intended to provide a kind of soil source heat pump system pipe laying method and soil source heat pump system, to solve existing skill
Soil source heat pump system in art can not arrange the problem of pipe laying in building bottom safety.
To achieve these goals, according to an aspect of the invention, there is provided a kind of soil source heat pump system pipe laying side
Method, the soil source heat pump system pipe laying method includes：Pipe laying is erected in pile foundation, the first heat exchanger tube is prefabricated in pile foundation, specifically
Including：First heat exchanger tube is previously positioned inside the steel reinforcement cage of pile foundation, then to casting concrete in steel reinforcement cage, to form stake
Base；Pipe laying is erected between pile foundation, by between the second heat exchanger tube embedment pile foundation；The first heat exchanger tube is changed with second by level set pipe
Heat pipe is connected.
Further, the first heat exchanger tube is spiral heat exchange tube, and the second heat exchanger tube is U-shaped heat exchanger tube.
Further, the pipe of the first heat exchanger tube is away from being 100mm.
Further, between pile foundation erect pipe laying, by the second heat exchanger tube imbed pile foundation between the step of include：Between pile foundation
Drilling, the second heat exchanger tube is put into drilling, and drilling is backfilled.
Further, also include before the step of being drilled between pile foundation：Determine the safe distance of the second heat exchanger tube and pile foundation,
This step includes：Judge the type of pile foundation；If pile foundation holds type for end, the second heat exchanger tube is more than or waits with the centre-to-centre spacing S of pile foundation
In the diameter of 2.5 times of pile foundation；If pile foundation is non-extrusion soil filling pile, the second heat exchanger tube is more than or waits with the centre-to-centre spacing S of pile foundation
In the diameter of 3.0 times of pile foundation；If pile foundation is Squeezing Soil Pile, the second heat exchanger tube is more than or equal to 3.5 times with the centre-to-centre spacing S of pile foundation
Pile foundation diameter.
Further, the step of being backfilled to drilling includes：Expected from backfill, the intensity after backfill material solidification is more than
Or equal to former soil strength；Backfill material is inserted in drilling.
According to another aspect of the present invention, there is provided a kind of soil source heat pump, the soil source heat pump system includes：Air-conditioning end
End；Pipe laying portion, pipe laying portion includes prefabricated the first heat exchanger tube being embedded in pile foundation and the second heat exchanger tube between being embedded in pile foundation；Water
Flat concetrated pipe, level set pipe connection the first heat exchanger tube and the second heat exchanger tube；Ground-source heat pump host, ground-source heat pump host is connected to
Between level set pipe and air conditioning terminal.
Further, soil source heat pump system also includes ground source circulating pump and air-conditioning side circulating pump, ground source circulating pump
It is arranged on level set pipe, and between pipe laying portion and ground-source heat pump host, air-conditioning side circulating pump is arranged on level set
Guan Shang, and between ground-source heat pump host and air conditioning terminal.
Further, soil source heat pump system also includes the settlement monitoring portion of monitoring settlement amount of pile foundation, settlement monitoring portion bag
Include：Liquid multi-point leveling device, liquid multi-point leveling device is multiple, and is distributed in each monitoring point correspondingly, communicating pipe connection
Each liquid multi-point leveling device, makes to be connected between any two liquid multi-point leveling device；Displacement transducer, the quantity of displacement transducer
Quantity with liquid multi-point leveling device is consistent, and displacement transducer is arranged on liquid multi-point leveling device correspondingly, and supervises
Survey the liquid level movement of liquid multi-point leveling device；Logging, logging is connected with displacement transducer, collects and process displacement transducer
The liquid level movement of the liquid multi-point leveling device of monitoring, to determine the settling amount of pile foundation.
Further, settlement monitoring portion also includes：Computer monitoring center, computer monitoring center is connected with logging,
The information of logging conveying is collected and processed, and calculates the relative settlement amount between each monitoring point；Wireless transport module, wirelessly
Transport module is connected with computer monitoring center, if the relative settlement amount between each monitoring point of computer monitoring center monitors surpasses
Early warning value is crossed, then wireless transport module alert.
Apply the technical scheme of the present invention, can be pre-buried first in pile foundation by the soil source heat pump system pipe laying method
Heat exchanger tube, effectively using the space in pile foundation, improves pipe laying quantity, so that heat exchange area increases, improves load capacity.Between pile foundation
The second embedded heat exchanger tube is effectively utilized the space between pile foundation, the reasonably optimizing arrangement of heat exchanger tube, is equally changing
Under heat energy power, reduce area occupied, make full use of in construction area institute usefully.First heat exchanger tube is previously positioned at pile foundation
Inside steel reinforcement cage, without being poured in pile foundation after the completion of damage the structure of pile foundation, it is ensured that the structural strength of pile foundation, and then ensure that
The bearing capacity of pile foundation.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the soil source heat pump system of embodiments of the invention；And
Fig. 2 shows the structural representation in the settlement monitoring portion of embodiments of the invention.
Description of reference numerals：1st, soil；2nd, pile foundation；3rd, the first heat exchanger tube；4th, the second heat exchanger tube；5th, source circulating pump；
6th, ground-source heat pump host；7th, air-conditioning side circulating pump；8th, air conditioning terminal；9th, air conditioner user；11st, level set pipe；12nd, displacement sensing
Device；13rd, liquid multi-point leveling device；14th, communicating pipe；15th, logging；16th, computer monitoring center；17th, wireless transport module.
Specific embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
As illustrated in fig. 1 and 2, embodiments in accordance with the present invention, soil source heat pump system pipe laying method is included in pile foundation 2 and erects
Pipe laying, the first heat exchanger tube 3 is prefabricated in pile foundation 2, specifically include；First heat exchanger tube 3 is previously positioned at the steel reinforcement cage of pile foundation 2
Inside, then to casting concrete in steel reinforcement cage, to form pile foundation 2；Pipe laying is erected between pile foundation 2, the second heat exchanger tube 4 is imbedded into stake
Between base 2；First heat exchanger tube 3 is connected with the second heat exchanger tube 4 by level set pipe 11.Buried by the soil source heat pump system
Pipe method can in pile foundation 2 pre-buried first heat exchanger tube 3, effectively using the space in pile foundation 2, pipe laying quantity is improved, so as to change
Hot area increase, improves load capacity.The second heat exchanger tube 4 buried between pile foundation 2 is effectively utilized the space between pile foundation 2, closes
Reason optimizes the arrangement of heat exchanger tube, under same exchange capability of heat, reduces area occupied, makes full use of the institute in construction area
Usefully.First heat exchanger tube 3 is previously positioned inside the steel reinforcement cage of pile foundation 2, without being poured in pile foundation 2 after the completion of damage pile foundation 2
Structure, it is ensured that the structural strength of pile foundation 2, and then ensure that the bearing capacity of pile foundation 2.
It should be noted that the present invention is based on arranging soil source heat pump system, and the soil source in building foundation bottom
Heat pump uses vertical ground heat exchanger.
Preferably, the first heat exchanger tube 3 is spiral heat exchange tube, and the second heat exchanger tube 4 is U-shaped heat exchanger tube.Spiral heat exchange tube
Heat exchange area can effectively be increased.
In the present embodiment, the pipe of the first heat exchanger tube 3 is away from being 100mm.The pipe of spiral heat exchange tube is away from referring to spiral heat exchange tube
The distance between the center line of two neighboring spiral.The pipe of the first heat exchanger tube 3 away from can be selected according to different heat exchange demand,
If desired larger heat exchange area, then, to increase spiral quantity, improve heat exchange area by pipe away from reduction.If desired heat-transfer surface
Product is smaller, then by pipe away from increase, to reduce spiral quantity.
Pipe laying is erected between pile foundation 2, is included the step of the second heat exchanger tube 4 is imbedded between pile foundation 2：Drilled between pile foundation 2,
Second heat exchanger tube 4 is put into drilling, drilling is backfilled.
Also include before the step of being drilled between pile foundation 2：Determine the safe distance of the second heat exchanger tube 4 and pile foundation 2, this step
Including：
Judge the type of pile foundation 2, different safe distances are determined with according to the type of different pile foundations 2, to ensure building
Reliability.
If pile foundation 2 holds type, the second heat exchanger tube 4 and the pile foundations 2 of the centre-to-centre spacing S more than or equal to 2.5 times of pile foundation 2 for end
Diameter.
If pile foundation 2 is non-extrusion soil filling pile, the second heat exchanger tube 4 is more than or equal to 3.0 times with the centre-to-centre spacing S of pile foundation 2
The diameter of pile foundation 2.
If pile foundation 2 is Squeezing Soil Pile, the pile foundations 2 of the centre-to-centre spacing S more than or equal to 3.5 times of the second heat exchanger tube 4 and pile foundation 2
Diameter.
The wellbore construction on the position for determining, production drilling, after being bored into projected depth, U-shaped heat exchanger is positioned over
In well, being drilled with backfilling material, it is closely knit to backfill.
The step of being backfilled to drilling includes：
Expected from backfill, the intensity after backfill material solidification is more than or equal to former soil strength；
Backfill material is inserted in drilling.
Farthest to reduce influence of the embedded heat exchanger tube for ground, backfill of the reply drilling from rational proportion
Material, the intensity after solidifying backfill material is more than or equal to former soil strength, and the intensity after preferably solidifying backfill material is more than original soil
Matter intensity, will not so reduce the bearing capacity of ground.Backfill material refers to following component and weight proportion：
| Sequence number | Title material | Proportioning % | Remarks |
| 1 | Cement | 10~16% | Portland cement, label >=32.5 |
| 2 | Sand | 50~60% | Modulus of fineness 3.7~1.6 |
| 3 | Bentonite | 5~8% | The mesh of fineness 20~60, expansion multiple >=10 |
| 4 | Water | Surplus |
If the low intensity of original place base (undisturbed soil), the intensity for backfilling material also there is no need too high, and cement need not be mixed
Too much；If the intensity of original place base (undisturbed soil) is high, the intensity for backfilling material is also high, higher than original place base undisturbed soil.Typically
The compression modulus Es 0.1-0.2 values of soil layer are 15~30MPa, then the modulus of compressibility value of backfill material is 20~30MPa.
According to another aspect of the present invention, soil source heat pump system includes air conditioning terminal 8, pipe laying portion, level set pipe 11
With ground-source heat pump host 6, between pipe laying portion includes the first heat exchanger tube 3 being embedded in pile foundation 2 and is embedded in pile foundation 2 second exchanges heat
Pipe 4, the first heat exchanger tube 3 can effectively using space in pile foundation 2, and the second heat exchanger tube 4 can effectively utilize 2 spaces of pile foundation, carry
The effective rate of utilization in high building space, solves the problems, such as that original pipe laying mode is taken up an area big.The connection of level set pipe 11 first is changed
The heat exchanger tube 4 of heat pipe 3 and second, ground-source heat pump host 6 is connected between level set pipe 11 and air conditioning terminal 8.
Soil source heat pump system also includes ground source circulating pump 5 and air-conditioning side circulating pump 7, and ground source circulating pump 5 is used as ground
The drive device of source recirculated water, air-conditioning side circulating pump 7 as air-conditioner circulating water drive device.Ground source circulating pump 5 is set
On level set pipe 11, and between pipe laying portion and ground-source heat pump host 6, air-conditioning side circulating pump 7 is arranged on level set
On pipe 11, and between ground-source heat pump host 6 and air conditioning terminal 8.
Exchanged heat using the fluid media (medium) in the second heat exchanger tube 4 and the first heat exchanger tube 3 and soil 1, form a soil for entirety
Earth source heat pump heat exchanging system.With the fluid heat (cold) after ground heat exchange by the lifting of ground-source heat pump host 6, deliver to and build
Build in the air conditioner user 9 in thing, reach the requirement for heating or freezing.
In order to ensure the bearer properties of building pile foundation, soil source heat pump system also includes the heavy of the monitoring settling amount of pile foundation 2
Drop monitoring portion, settlement monitoring portion includes liquid multi-point leveling device 13, displacement transducer 12 and logging 15.
Liquid multi-point leveling device 13 is multiple, and is distributed in each monitoring point correspondingly, communicating pipe 14 connects each liquid
Static level device 13, makes to be connected between any two liquid multi-point leveling device 13.
The quantity of displacement transducer 12 is consistent with the quantity of liquid multi-point leveling device 13, and displacement transducer 12 is corresponded
Be arranged on liquid multi-point leveling device 13, and monitor liquid multi-point leveling device 13 liquid level movement.
Logging 15 is connected with displacement transducer 12, collects and process the liquid multi-point leveling device of the monitoring of displacement transducer 12
13 liquid level movement, to determine the settling amount of pile foundation 2.
For the ease of transmitting and monitoring, settlement monitoring portion also includes computer monitoring center 16 and wireless transport module 17.
Computer monitoring center 16 is connected with logging 15, collects and process the information of the conveying of logging 15, and calculates
Relative settlement amount between each monitoring point.
Wireless transport module 17 is connected with computer monitoring center 16, if each monitoring point of the monitoring of computer monitoring center 16
Between relative settlement amount exceed early warning value, the then alert of wireless transport module 17.
Displacement transducer 12 is electromagnetism displacement transducer, and wireless transport module 17 includes GPRS module.By settlement monitoring
Portion can automatically monitor the settlement of buildings pile, it is ensured that building uses safety.
The course of work in settlement monitoring portion is as follows：
Liquid multi-point leveling device 13 is disposed at each monitoring point of building, each liquid multi-point leveling device 13 is adopted each other
With being connected communicating pipe 14 (be equipped with anti-icing fluid in liquid multi-point leveling device 13 and communicating pipe 14), due to the effect of gravity so that
The liquid level of each liquid multi-point leveling device 13 keeps identical forever, vertical deformation is produced at certain monitoring point of building, then
The liquid level of liquid multi-point leveling device 13 herein can rise or fall, while liquid multi-point leveling device 13 at other each points
Liquid level can also be suffered from this and changed therewith, i.e., liquid level is down or up.All pacify on the top of each liquid multi-point leveling device 13
Equipped with an electromagnetism displacement transducer, the changing value of liquid level can accurately be detected by electromagnetism displacement transducer, and be passed through
One logging 15 being connected with each electromagnetism displacement transducer is transferred to computer monitoring center 16, and computer monitoring center 16
Can at any time be calculated between each monitoring point according to the changing value of the liquid level of the liquid multi-point leveling device 13 of each monitoring point
Relative settlement amount, when relative settlement amount exceedes certain early warning value, computer monitoring center 16 passes through connected GPRS
Module sends information alert using gsm wireless communication network to engineers and technicians.Engineers and technicians can be by other ends
End receives the warning message, for example, received by mobile phone or PC, so as to monitor in real time.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：The present invention is carried
A kind of laying method that soil source heat pump system vertical ground heat exchanger is arranged in building foundation bottom is supplied, will have been buried in pile foundation
Pipe combines one new soil source heat pump pipe laying form of composition with pipe laying between stake.Vertical pendulum tiltmeters are arranged between pile foundation is determined
The method of heat exchanger, heat exchanger tube and different types of pile foundation spacing, disclosure satisfy that the safe handling function of heat exchanger and pile foundation.Carry
Effective pipe laying quantity of soil source heat pump underground pipe high.The foundation deformation states such as energy monitor in real time building foundation's settlement.
The present invention can solve the excessive technology restriction of soil source heat pump heat exchanger tube stringing region floor space, can make full use of
In construction area institute usefully, and can the foundation deformation state such as real-time monitoring settlement of building, that is, save building for preciousness
Land used space is built, the safe application performance of building and heat exchanger tube is can fully ensure that again, may advantageously facilitate soil source heat pump technology
In urban architecture close quarters popularization and application.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of soil source heat pump system pipe laying method, it is characterised in that including：
Pipe laying is erected in pile foundation (2), the first heat exchanger tube (3) is prefabricated in pile foundation (2), specifically include：By the first heat exchanger tube (3)
It is previously positioned inside the steel reinforcement cage of pile foundation (2), then to casting concrete in steel reinforcement cage, to form pile foundation (2)；
Pipe laying is erected between pile foundation (2), by between the second heat exchanger tube (4) embedment pile foundation (2), this step includes：
Determine the safe distance of the second heat exchanger tube (4) and pile foundation (2)；
Drilled between pile foundation (2), the second heat exchanger tube (4) is put into drilling, drilling is backfilled；
Wherein it is determined that the step of safe distance of the second heat exchanger tube (4) and pile foundation (2) includes：
Judge the type of pile foundation (2)；
If pile foundation (2) holds type for end, the second heat exchanger tube (4) is more than or equal to 2.5 times of pile foundation with the centre-to-centre spacing S of pile foundation (2)
(2) diameter；
If pile foundation (2) is non-extrusion soil filling pile, the second heat exchanger tube (4) is more than or equal to 3.0 times with the centre-to-centre spacing S of pile foundation (2)
Pile foundation (2) diameter；
If pile foundation (2) is Squeezing Soil Pile, the second heat exchanger tube (4) is more than or equal to 3.5 times of pile foundation with the centre-to-centre spacing S of pile foundation (2)
(2) diameter；
First heat exchanger tube (3) is connected with second heat exchanger tube (4) by level set pipe (11).
2. soil source heat pump system pipe laying method according to claim 1, it is characterised in that first heat exchanger tube (3)
It is spiral heat exchange tube, second heat exchanger tube (4) is U-shaped heat exchanger tube.
3. soil source heat pump system pipe laying method according to claim 2, it is characterised in that the pipe of the first heat exchanger tube (3)
Away from being 100mm.
4. soil source heat pump system pipe laying method according to claim 1, it is characterised in that the step backfilled to drilling
Suddenly include：
Expected from backfill, the intensity after the backfill material solidification is more than or equal to former soil strength；
The backfill material is inserted in drilling.
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| CN201410425452.4A CN104154618B (en) | 2014-08-26 | 2014-08-26 | Soil source heat pump system pipe laying method and soil source heat pump system |
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| CN107447749B (en) * | 2017-04-28 | 2023-04-07 | 湖北工业大学 | Heat exchange system based on deep buried pipe and energy pile and construction process |
| CN107906643B (en) * | 2017-11-14 | 2020-05-05 | 湖南中大经纬地热开发科技有限公司 | Ground source heat energy integrated system |
| CN109163478A (en) * | 2018-09-04 | 2019-01-08 | 深圳大学 | A kind of phase transformation energy pile, earth source heat pump heat-exchange system and production method |
| CN109083159B (en) * | 2018-09-28 | 2023-07-25 | 浙江工业大学 | Cast-in-situ reinforced concrete horizontal containment energy pile and construction method |
| CN113357839B (en) * | 2021-06-26 | 2022-12-02 | 中化地质矿山总局山东地质勘查院 | Medium-deep buried pipe heat exchange device and heat supply system |
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