CN106049507A - Ground source well heat exchanger integrating ground temperature monitoring function and construction method of ground source well heat exchanger - Google Patents
Ground source well heat exchanger integrating ground temperature monitoring function and construction method of ground source well heat exchanger Download PDFInfo
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- CN106049507A CN106049507A CN201610556076.1A CN201610556076A CN106049507A CN 106049507 A CN106049507 A CN 106049507A CN 201610556076 A CN201610556076 A CN 201610556076A CN 106049507 A CN106049507 A CN 106049507A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/12—Back-filling of foundation trenches or ditches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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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 invention discloses a ground source well heat exchanger integrating a ground temperature monitoring function and a construction method of the ground source well heat exchanger. The ground source well heat exchanger comprises a U-shaped head and fixing pipe clamps. Each fixing pipe clamp comprises a supporting ring and fixing clamps evenly arranged on the periphery of the supporting ring. The inner diameter of the fixing clamps is consistent with the outer diameter of the U-shaped pipe heat exchanger. The U-shaped pipe heat exchanger is clamped in the fixing clamps. Ground temperature monitoring pipes are clamped in the supporting rings and are downwards arranged in a ground temperature monitoring device. The ground temperature monitoring pipes and the U-shaped pipe heat exchanger are downwards arranged in a ground source well together, the ground temperature monitoring device is located in the middle of the ground source well, and collected ground temperature data have representativeness. According to the construction method of the ground source well heat exchanger integrating the ground temperature monitoring function, the ground temperature monitoring pipes are reserved for monitoring work during ground source well construction, the construction cost is not increased, various ground temperature monitoring devices can be downwards arranged at any time according to needs before running of a project, during running of the project and after running of the project, and accordingly the ground temperature monitoring work is carried out. The ground source well heat exchanger and the construction method are simple in technology, feasible in technology and high in operability.
Description
Technical field
The present invention relates to shallow layer ground-temperature energy and develop field, the Di Yuanjing of a kind of integrated ground temperature monitoring function changes
Hot device and construction method thereof.
Background technology
Shallow layer ground-temperature energy has sustainable use, takes the advantages such as convenience, energy-efficient, operating cost is low, is important
Localization, renewable free of contamination resource.Develop shallow layer ground-temperature energy to build resource-efficient and environment friendly society,
Improve the existing energy resource structure of China, promote that the realization that national energy-saving reduces discharging strategic objective has great importance.By 2015,
The whole nation utilizes the floor area of building of shallow layer ground-temperature energy to reach 3.92 hundred million square metres, has built up substantial amounts of earth-source hot-pump system, wherein
Again based on buried pipe ground-source heat pump system, and in increasing trend year by year, it is that shallow layer ground-temperature energy develops Main way.
Owing to buried pipe ground-source heat pump system needs continuous cycle heat exchange, original temperature field, chemical fields background certainly will be changed
Value, needs the most deeply to Soil Thermal, wet and salinity transfer influence research, it is therefore necessary to strengthen earth source heat pump and develop
Engineering monitoring works, monitoring heat exchange well and surrounding formation temperature and its Changing Pattern, recovery capability, to instruct engineering utilization,
Prevent poor environment geological problem, ensure engineering operation effect.
Develop engineering construction scientific research currently for shallow layer ground-temperature energy and patent achievement is concentrated mainly on the hot thing of rock-soil layer
Property the aspect such as test, geothermal energy heat exchanger and source pump, Temperature Field monitoring scientific research and patent achievement are concentrated mainly on monitoring
Equipment, monitoring mode and monitoring system aspects, the construction of the most single research engineering or monitoring, work in every independently carries out, and for
Engineering development utilizes ground source well and monitoring integrated utilization research less, and the patent of formation mainly has distribution type fiber-optic Temperature Field to monitor
Device, a kind of shallow earth monitoring sensor string, distributed tandem fine formation temperature measurement and wireless transmission collection system etc..
Monitoring device install time need independent construction drill and under enter after use cement mortar fix immutable, it is impossible to realize equipment more
New regenerate, if more crucially monitoring device breaks down maintenance difficulty more greatly, costly or be difficult to keep in repair, Zhi Nengbao
Useless, cause monitoring system failure to lose efficacy.
Summary of the invention
In order to solve the deficiencies in the prior art, give full play to ground source well effect, reduce ground temperature monitoring cost, the present invention
Propose source, ground well heat exchanger and the construction method thereof of a kind of integrated ground temperature monitoring function.
The present invention adopts the following technical scheme that
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function, including U head and fixing pipe clamp, U head connects water inlet pipe
And return pipe, water inlet pipe and return pipe are connected to become U-tube heat exchanger by U head；
Described fixing pipe clamp includes support ring and is uniformly arranged on the fixing hoop of support ring surrounding, the internal diameter of fixing hoop
Consistent with the external diameter of U-tube heat exchanger, U-tube heat exchanger is connected in fixing hoop, is connected with ground temperature prison in described support ring
Test tube, enters ground temperature monitoring device under ground temperature monitoring pipe is interior；
Described ground temperature monitoring pipe, U-tube heat exchanger enter down in the well of source, ground, and ground temperature monitoring device is positioned in the well of source, ground
Between, the Geothermal data collected is representative.
Preferably, described U head is single U head, and fixing pipe clamp includes support ring and is uniformly arranged on two of support ring surrounding
Fixing hoop, one group of water inlet pipe and return pipe are connected to become single U-tube heat exchanger by single U head.
Preferably, described U head is Double-U-head, and fixing pipe clamp includes support ring and is uniformly arranged on four of support ring surrounding
Fixing hoop, two groups of water inlet pipes and return pipe are connected to become double u-tube heat exchanger by Double-U-head.
Preferably, the specification of described U-tube heat exchanger is φ 25 or φ 32.
Preferably, described ground temperature monitoring pipe is managed for PE, and specification is not less than φ 32.
The construction method of source, the ground well heat exchanger of above-mentioned integrated ground temperature monitoring function comprises the steps:
Step one: make source, ground well heat exchanger, U-tube is connect with U first melt, and carry out tightness test, ground temperature is monitored
Pipe sealed bottom, and carry out tightness test, use fixing pipe clamp that U-tube and ground temperature monitoring pipe are carried out separation before down tube fixed
Position, is stuck in U-tube heat exchanger in fixing hoop, ground temperature is monitored pipe clamp in support ring, it is ensured that U-tube and ground temperature monitoring pipe
Strong fix, it is ensured that down tube puts in place non-displacement；
Step 2: source, ground well construction, is specifying position to hole according to relating to requirement, under ensureing well sky perpendicularity, meeting
Put U-tube heat exchanger and ground temperature monitoring pipe, be suitable to backfill and be as the criterion；
Step 3: lower pipe construction, source, ground well construction complete after down tube immediately, ground temperature monitoring pipe, U-tube heat exchanger are at water-filling
Insert in well under state, carry out down tube with special down tube device during down tube, after down tube reaches desired depth, carry out well head and fix；
Step 4: grouting backfill, backfill is it is ensured that well cementing is closely knit, without cavity, to U-tube and ground temperature after completing to be in the milk
Observation pressure change in 1 hour stablized by monitoring pipe, it is ensured that do not damage tube wall during down tube；
Step 5: under enter temperature measuring equipment, Di Yuanjing heat exchanger run before, run in, run after at any time ground temperature monitor
Enter ground temperature monitoring device under in pipe, make ground temperature monitoring device connect ground temperature monitoring system on the ground.
Further, fixing the spacing between pipe clamp in described step one is 3-5m.
Further, in described step 2 the well depth of source well exceed projected depth 0.5-2m hole at end, the aperture of source, ground well
At unconsolidated formation not less than 150mm, it is less than 1 ° at basement rock not less than 130mm, the perpendicularity of source, ground well.
Further, in described step 3, the length of U-tube is longer than well depth, makes U-tube expose well head 1-2m, and down tube completes
After carry out tube head closure, prevent foreign material enter blocking pipeline.
Further, in described step 4, grouting backfill uses oleo stock naturally to backfill, during backfilling material deficiency, and bedrock formation
Using fine sand blended cement to backfill, fine sand, cement mixing ratio are 1:3；Unconsolidated formation uses clay mixing fine sand to carry out back
Filling out, clay, fine sand mixed proportion are 1:9.
The Advantageous Effects using as above technical scheme to obtain is:
1, heat exchanger and ground temperature monitoring device can be integrated in the well of source, a ground, it is ensured that engineering operation and monitoring are the most not
Interference, once puts into and realizes two kinds of purposes.
2, in the case of not affecting engineering utilization and the operation of monitoring system, the ground temperature monitoring device of fault can be changed,
The renewal upgrading of ground temperature monitoring device can also be realized.
3, ground temperature monitoring device is positioned at the centre of source, ground well, collects more representative Geothermal data, it is to avoid owing to surveying
Temperature system is bordering on ground source well heat exchanger water inlet pipe partially or the data that cause of return pipe are bigger than normal or less than normal.
4, using this method can be that monitoring is reserved and monitored pipeline when source, ground well construction, does not increase and is constructed into
This, as required can be with the monitoring instrument entering number of different types at present before ground source heat pump project runs, in operation, after operation
Carry out ground temperature monitoring.And present invention process is simple, technical feasibility, workable.
Accompanying drawing explanation
Fig. 1 is double-U-shaped Tube Sheet of Heat Exchanger card structure schematic diagram.
Fig. 2 is single U-shaped Tube Sheet of Heat Exchanger card structure schematic diagram.
Fig. 3 is source, the ground well heat exchanger structure schematic diagram of integrated ground temperature monitoring function.
In figure, 1, fixing hoop, 2, support ring, 3, bayonet socket, 4, fixing pipe clamp, 5, ground temperature monitoring pipe, 6, return pipe, 7, enter
Water pipe, 8, U head.
Detailed description of the invention
Detailed description of the invention in conjunction with 1 to 3 couple of present invention of accompanying drawing is described further:
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function, including U 8 and fixing pipe clamp 4, U head connects to be had into water
Pipe and return pipe, water inlet pipe 7 and return pipe 6 are connected to become U-tube heat exchanger by U head；Described fixing pipe clamp includes support ring
Be uniformly arranged on the fixing hoop of support ring surrounding, the internal diameter of fixing hoop is consistent with the external diameter of U-tube heat exchanger, U-tube
Heat exchanger is connected in fixing hoop, is connected with ground temperature monitoring pipe 5, enters ground temperature monitoring under ground temperature monitoring pipe is interior in described support ring
Device；Described ground temperature monitoring pipe, U-tube heat exchanger enter down in the well of source, ground, and ground temperature monitoring device is positioned at the centre of source, ground well,
The Geothermal data collected is representative.
U head is that single U head, one group of water inlet pipe and return pipe are connected to become single U-tube heat exchanger by single U head.Fixing pipe clamp
Including support ring 2 and two fixing hoops being uniformly arranged on support ring surrounding, fixing hoop 1 has bayonet socket 3, such as Fig. 2 institute
Show.
U head is Double-U-head, and two groups of water inlet pipes and return pipe are connected to become double u-tube heat exchanger by Double-U-head.Fixing pipe clamp
Including support ring 2 and four fixing hoops 1 being uniformly arranged on support ring surrounding, fixing hoop has bayonet socket 3, such as Fig. 1 institute
Show.
The specification of U-tube heat exchanger is φ 25 or φ 32.Ground temperature monitoring pipe is managed for PE, and specification is typically no less than φ 32, many
Select φ 32, under convenience, enter ground temperature monitoring device.
Preparation of construction, is conscientiously familiar with design drawing, carries out boring location, confides a technological secret and people, machine, the early-stage preparations work of material
Make.The construction method of source, the ground well heat exchanger of above-mentioned integrated ground temperature monitoring function comprises the steps:
Step one: make source, ground well heat exchanger, water inlet pipe, return pipe are connect composition heat exchanger with U first melt, ground temperature is monitored
Pipe connects with U first melt, and carries out tightness test, and ground temperature is monitored pipe sealed bottom, use before down tube fixing pipe clamp by U-tube with
Ground temperature monitoring pipe is located separately, and is stuck in fixing hoop by U-tube heat exchanger, ground temperature monitors pipe clamp in support ring,
Ensure U-tube and ground temperature monitoring pipe strong fix, it is ensured that down tube puts in place non-displacement.
No matter single U-tube heat exchanger or double u-tube heat exchanger, ground temperature monitoring pipe must with U-tube stable connection,
Guarantee that down tube puts in place non-displacement, in order to avoid causing temperature measurement data to drift about.The specification of U-tube and ground temperature monitoring pipe is the most unified, for side
Just the laying and changing of temperature measuring device, φ 32 is typically selected in ground temperature monitoring mouth of pipe footpath.For preventing the heat transfer shadow that is short-circuited between arm
Ring U-tube heat exchanger effect, cause Monitoring Data distortion, the spacing between fixing pipe clamp is generally 3-5m.
Step 2: source, ground well construction, is specifying position to hole according to relating to requirement, under ensureing well sky perpendicularity, meeting
Put U-tube and ground temperature monitoring pipe, be suitable to backfill and be as the criterion.
Wellbore construction is the basic link of earth-source hot-pump system, is most to have bullet during entirely source heat pump system cost structure divides
The part of property.Wellbore construction should take different construction technologies according to different geological conditions.Hole depth is by technology requirement, super
Crossing projected depth 0.5-2m hole at end, aperture is not less than 130mm at unconsolidated formation not less than 150mm, basement rock, and hole depth error not should be greater than
50mm, perpendicularity is less than 1 °.
Step 3: lower pipe construction, source, ground well construction complete after down tube immediately, ground temperature monitoring pipe, U-tube heat exchanger are at water-filling
Insert in well under state, carry out down tube with special down tube device during down tube, after down tube reaches desired depth, carry out well head and fix.
Down tube speed is wanted uniformly, damages pipeline during preventing down tube, if meeting obstacle and the phenomenon that has some setbacks, and should be timely
Ascertain the reason, down tube could be continued after carrying out process.The length of U-tube should be more slightly longer than hole depth so that it can expose 1-2m,
Down tube carries out tube head closure after completing, prevent foreign material from entering blocking pipeline, carry out alarming sign, prevent artificial destruction.
Step 4: grouting backfill, backfill is it is ensured that well cementing is closely knit, without cavity, after completing grouting, U-tube is stablized 1
Hour observe pressure change, it is ensured that tube wall is not damaged during down tube.
Grouting backfill uses oleo stock naturally to backfill, and during backfilling material deficiency, bedrock formation uses fine sand blended cement to carry out
Backfill, fine sand, cement mixing ratio are 1:3；Unconsolidated formation uses clay mixing fine sand to backfill, clay, fine sand mixed proportion
For 1:9.
Step 5: under enter temperature measuring equipment, in ground temperature monitoring pipe under enter ground temperature monitoring device, ground temperature monitoring device connects ground
On ground temperature monitoring system.
Ground temperature monitoring pipe can enter down the ground temperature monitoring device of the modes such as monobus digital, fiber grating, distribution type fiber-optic,
Reach source, ground well heat exchanger and the integrated target of ground temperature monitoring device, can change in time when ground temperature monitoring device breaks down.
Through somewhere, shallow layer ground-temperature energy research and appraisal project is verified, source, the ground well heat exchanger of integrated ground temperature monitoring function
Construction method be suitable for sedimentary rock, granite, the big rock class of metamorphic rock three.Source, the ground well heat exchanger energy of integrated ground temperature monitoring function
Enter the ground temperature monitoring device of the modes such as monobus digital, fiber grating, distribution type fiber-optic under Gou, can apply and carry on the back at Temperature Field
In the monitoring of scape value, exploitation engineering dynamic monitoring.
Somewhere utilizes this construction method to carry out thermal response test, remains a certain proportion of ground temperature monitoring pipe simultaneously,
Establishing ground temperature monitoring system, the ground temperature monitoring pipe of reservation can become ground temperature monitoring holes with entering monitoring device at present as required,
Drilling operation expense 3-5 ten thousand yuan can be saved in every hole.
The construction method of source, the ground well heat exchanger of integrated ground temperature monitoring function can develop Demonstration Base ground at somewhere ground temperature
Having obtained applications well in pipe laying earth-source hot-pump system, 11 groups 44 borings of constructing altogether, wherein main aperture both participates in as heat exchanging holes
Engineer applied, is also that ground temperature monitoring holes uses, and reserved monitoring pipe can change adjustment monitoring device at any time.
Due to economic and technical reason, substantial amounts of exploitation engineering is not formulated ground temperature monitoring scheme and is carried out ground temperature monitoring work
Make, and after engineering operation by site condition, the factors such as source well pitch requirements limited and cannot be supplemented construction monitoring hole.But adopt
Can be that monitoring is reserved and monitored pipeline when ground source heat pump project ground source well construction by this construction method, not increase construction
Cost, as required can before engineering operation, run in, run after carry out ground with the monitoring instrument entering number of different types at present
Temperature monitoring.
Ground source well and monitoring well are constructed the most respectively, but the construction method of source, the ground well heat exchanger of integrated ground temperature monitoring function
Being to enter independent ground temperature monitoring pipe under synchronization when source, ground well construction, technique is simple, and technical feasibility is workable, and U-tube is made
Supporting that shallow layer ground-temperature energy develops for heat exchanger, ground temperature monitoring pipe is installed protection sleeve pipe as ground temperature monitoring instrument and is supported ground temperature
Monitoring, source, ground well heat exchanger and ground temperature monitoring device independent operating, do not interfere with each other.In the case of funds allow, can open
Sending out utilizing works district and form independent mini measuring system, all independent mini measuring systems are integrated into a platform and can be formed
Regional ground temperature monitoring system.
Certainly, only presently preferred embodiments of the present invention described above, the present invention is not limited to enumerate above-described embodiment, should
When explanation, any those of ordinary skill in the art under the guidance of this specification, made all equivalent substitute, bright
Aobvious variant, within all falling within the essential scope of this specification, ought to be protected by the present invention.
Claims (10)
1. source, a ground well heat exchanger for integrated ground temperature monitoring function, including U head (8) and fixing pipe clamp, U head connects water inlet pipe
And return pipe (6), water inlet pipe (7) and return pipe (6) are connected to become U-tube heat exchanger by U head (8) (7), it is characterised in that
Described fixing pipe clamp includes support ring (2) and is uniformly arranged on the fixing hoop (1) of support ring (2) surrounding, fixing hoop
(1) internal diameter is consistent with the external diameter of U-tube heat exchanger, and U-tube heat exchanger is connected in fixing hoop (1), described support ring (2)
Inside it is connected with ground temperature monitoring pipe (5), under ground temperature monitoring pipe (5) is interior, enters ground temperature monitoring device；
Described ground temperature monitoring pipe (5), U-tube heat exchanger enter down in the well of source, ground, and ground temperature monitoring device is positioned in the well of source, ground
Between, the Geothermal data collected is representative.
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 1, it is characterised in that described U
Head is single U head, and fixing pipe clamp includes support ring (2) and is uniformly arranged on two fixing hoops (1) of support ring (2) surrounding, one
Group water inlet pipe (7) and return pipe (6) are connected to become single U-tube heat exchanger by single U head.
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 1, it is characterised in that described U
Head is Double-U-head, and fixing pipe clamp includes support ring (2) and is uniformly arranged on four fixing hoops (1) of support ring (2) surrounding, two
Group water inlet pipe (7) and return pipe (6) are connected to become double u-tube heat exchanger by Double-U-head.
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 1, it is characterised in that described U
The specification of type heat exchange of heat pipe is φ 25 or φ 32.
Source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 1, it is characterised in that describedly
Temperature monitoring pipe (5) is PE pipe, and specification is not less than φ 32.
6. according to the construction party of source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function described in claim 1 to 5 Arbitrary Term
Method, it is characterised in that described construction method comprises the steps:
Step one: make source, ground well heat exchanger, U-tube is connect with U first melt, and carry out tightness test, ground temperature is monitored at the bottom of pipe
Portion seals, and carries out tightness test, uses fixing pipe clamp that U-tube and ground temperature are monitored pipe and be located separately, by U before down tube
Type heat exchange of heat pipe is stuck in fixing hoop, ground temperature is monitored pipe clamp in support ring, it is ensured that U-tube and ground temperature monitoring pipe are firm fixed
Position, it is ensured that down tube puts in place non-displacement；
Step 2: source, ground well construction, specify position according to relating to requirement boring, with ensure well sky perpendicularity, satisfied transfer U-shaped
Heat exchange of heat pipe and ground temperature monitoring pipe, be suitable to backfill and be as the criterion；
Step 3: lower pipe construction, source, ground well construction complete after down tube immediately, ground temperature monitoring pipe, U-tube heat exchanger are in water-filling state
In lower insertion well, during down tube, carry out down tube with special down tube device, after down tube reaches desired depth, carry out well head and fix；
Step 4: grouting backfill, backfill is it is ensured that well cementing is closely knit, without cavity, after completing grouting monitors U-tube and ground temperature
Observation pressure change in 1 hour stablized by pipe, it is ensured that do not damage tube wall during down tube；
Step 5: under enter temperature measuring equipment, Di Yuanjing heat exchanger run before, run in, run after at any time ground temperature monitoring pipe in
Under enter ground temperature monitoring device, make ground temperature monitoring device connect ground temperature monitoring system on the ground.
The construction method of source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 6, its feature
Being, fixing the spacing between pipe clamp in described step one is 3-5m.
The construction method of source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 6, its feature
Be, in described step 2 the well depth of source well exceed projected depth 0.5-2m hole at end, the aperture of source, ground well is the least at unconsolidated formation
In 150mm, it is less than 1 ° at basement rock not less than 130mm, the perpendicularity of source, ground well.
The construction method of source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 6, its feature
Being, in described step 3, the length of U-tube is longer than well depth, makes U-tube expose well head 1-2m, and down tube carries out tube head envelope after completing
Stifled, prevent foreign material from entering blocking pipeline.
The construction method of source, the ground well heat exchanger of a kind of integrated ground temperature monitoring function the most according to claim 6, its feature
Being, in described step 4, grouting backfill uses oleo stock naturally to backfill, and during backfilling material deficiency, bedrock formation uses fine sand mixing
Cement backfills, and fine sand, cement mixing ratio are 1:3；Unconsolidated formation uses clay mixing fine sand to backfill, clay, fine sand
Mixed proportion is 1:9.
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| CN201610556076.1A CN106049507A (en) | 2016-07-15 | 2016-07-15 | Ground source well heat exchanger integrating ground temperature monitoring function and construction method of ground source well heat exchanger |
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| CN106895926A (en) * | 2017-03-09 | 2017-06-27 | 长江水利委员会长江科学院 | High accuracy geothermal gradient automatic measurement device and method |
| CN108225598A (en) * | 2018-03-12 | 2018-06-29 | 山东亚特尔集团股份有限公司 | U-shaped underground pipe energy converter backfilling material temperature survey stent |
| CN110878564A (en) * | 2019-10-31 | 2020-03-13 | 安徽省路港工程有限责任公司 | Construction method of foundation pile sounding pipe installation structure |
| CN111811165A (en) * | 2020-06-19 | 2020-10-23 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Coal mining closed pit mine geothermal energy buried pipe heat supply and refrigeration system |
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| CN111811165A (en) * | 2020-06-19 | 2020-10-23 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Coal mining closed pit mine geothermal energy buried pipe heat supply and refrigeration system |
| CN111811165B (en) * | 2020-06-19 | 2021-10-19 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Coal mining closed pit mine geothermal energy buried pipe heat supply and refrigeration system |
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Inventor after: Kang Fengxin Inventor after: Wu Xiaohua Inventor after: Zhao Shuquan Inventor after: Chen Hongnian Inventor after: Jia Chen Inventor before: Wu Xiaohua Inventor before: Zhao Shuquan Inventor before: Chen Hongnian Inventor before: Jia Chen |
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Application publication date: 20161026 |