CN206131499U - Do circulation of hot dry rock (EGS) individual well and adopt heat facility - Google Patents
Do circulation of hot dry rock (EGS) individual well and adopt heat facility Download PDFInfo
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- CN206131499U CN206131499U CN201620696778.5U CN201620696778U CN206131499U CN 206131499 U CN206131499 U CN 206131499U CN 201620696778 U CN201620696778 U CN 201620696778U CN 206131499 U CN206131499 U CN 206131499U
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- heat
- pipe
- working medium
- hot dry
- dry rock
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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 utility model relates to a do circulation of hot dry rock (EGS) individual well and adopt heat facility, this technique consisting of: A. A set of derivation system includes contact tube (16, 18), heat -insulating material (15, 17), B. A set of heat transfer system seals ware (9), working medium filter (10, 11), heat absorption pipe (12, 13), heat storage materials (14) including technique pipe (8), seat, C. A set of filling pipe system includes working medium appearance chamber (5), injection device (6), ascending pipe (7), D. A set of discharge system includes heat exchanger (1), working medium softening installation (2), discharge pipe (3), eduction gear (4), four systems of group and the butt joint of ground heat utilization equipment form inclosed circulation system, and the heat energy that will do expeditiously among the hot dry rock thermal reservoir is derived, apply to electricity generation, heating (refrigeration), have realized the social value of low carbon environmental protection. The utility model relates to a brand -new technique of utilizing the geothermal energy.
Description
Technical field
This utility model belongs to hot dry rock (EGS) technology, more particularly, to hot dry rock（EGS）Standing column well heat-collecting device.
Background technology
In January, 2013, National Energy Board, the Ministry of Finance, Ministry of Land and Resources, house and town and country construction portion issue jointly《With regard to
The instruction for promoting geothermal energy development to utilize》, it is desirable to " geothermal energy technology progress is carried forward vigorously, geothermal energy development is actively cultivated
Using market, according to advanced technology, environmental friendliness, economically viable general requirement, promote rationally having for geothermal energy resource comprehensively
Effect is utilized ".
In June, 2014, General Affairs Department of National Energy Board, general office of Ministry of Land and Resources send《Open with regard to tissue establishment geothermal energy
Send out the notice using planning》, it is desirable to " recent geothermal energy development is heated with shallow layer ground-temperature energy using planning for various places（Refrigeration）, middle depth
Based on the heating of layer geothermal energy and comprehensive utilization, geother-mal power generation can be developed in the area for possessing high-temperature geothermal resource.In development at a specified future date
Warm geothermal power generation and hot dry rock generate electricity, and improve underground heat level of comprehensive utilization ".
Conventional geothermal well, mainly directly takes out geothermal water from well and heats to building.This technology is simple, practical,
Development cost is low, so far also in widely using.Have the disadvantage it is this kind of directly take, direct-furnish, the mode of in line utilization heat energy, cause greatly
Groundwater resources and geothermal energy waste, can also cause Detect Urban Geologic Hazards.Although someone advocates to adopt light irrigation deeply to safeguard
Application of the technique in city heat supply, but a bite producing well need to beat 2-3 mouth inverted wells, increased the cost of heating enterprise.
Meanwhile, inverted well is difficult to realize recharge truly, in addition recharge high cost because of geological problem, therefore, it is most of at present
For heat unit, avoiding recharge, illegal operation.
It is building heating using thermal technology, has been in fashion in the world 30 years.After upper world's nineties incoming China,
Once there is the impetus advanced by leaps and bounds.Achievement achieved with the second in the world in 2010, highest annual rate of growth is up to more than 40%.With
After begin to decline, current annual rate of growth only has 27%.Trace it to its cause, be primarily present problems with：1 ground source heat device heat exchanging holes are applied
Work needs larger space, the big region of site coverage cannot large area implement, it is difficult to large-scale development.2 shallow layer ground-temperature energies,
Temperature is low, water consumption is more, consumption electric power is big.3 water source thermals are there are certain requirements to water quality, the water yield, water temperature, using shallow-layer ground
Warm water, its water quality inferiority, the water yield are little, water temperature is low, and thermal is difficult to run well.4 recharges are difficult, waste serious.
The content of the invention
The purpose of this utility model is to provide a kind of lower cost, energy-efficient, and heat utilization rate is high, and low-carbon environment-friendly is extracted
Using the hot dry rock of geothermal energy（EGS）Standing column well heat-collecting device.
For achieving the above object, this utility model takes technical scheme below：Step 1：According to heating area, underground heat ladder
Degree, flatly, hole diameter and well depth are calculated according to calorific requirement and geothermic gradient and are determined two footpath straight wells of certain depth of constructing.
Step 2：In the built-in vertical guiding system of two footpath straight wells, delivery line is installed（16、18）, the outer filling heat insulator of delivery line
（15、17）, the consumption of the length and adiabator of delivery line calculated with geothermic gradient according to the confession requirement of geothermal energy and determined.
Step 3：Working medium is injected into delivery line（Calculate for demand meter according to heat）, Temperature of Working situation of change is observed, calculates single
Heating efficiency in the time of position, and measurement result is contrasted with calorific requirement, determining Fracturing Project, technical parameter is according to geologic data meter
Calculate.
Step 4：Heat-exchange system is set up in delivery line, endothermic tube is installed（12、13）, technology pipe（8）, working medium filter
（10、11）, outside pipe string, fill heat-storing material（14）, technology pipe（8）It is interior that setting device is installed（9）, working medium filter（10、11）
And endothermic tube（12、13）Actual size according to the confession demand meter of geothermal energy calculate determine.
Step 5：Injected system is set up in delivery line, injection device is installed（6）, ascending pipe（7）, top and working medium cavity volume
（5）Connection, bottom are connect with the pipe series winding of endothermic system.
Step 6：Discharge system is set up in delivery line, discharge pipe is installed（3）, discharger（4）, top connection heat exchange
Device（1）, working medium softening plant（2）, the ability to work of discharger and heat exchanger calculates according to the confession demand meter of geothermal energy and determines.
Step 7：The inner loop working medium of heat exchange needed for disposable injection into delivery line, injection rate is according to calorific requirement meter
Calculate and determine.
Due to taking above technical scheme, which has advantages below to this utility model：1 utilizes new multiple well water storage, only
Individual well can be saved and take up an area space more than 50%.2 location of well flexibly, is not limited by region and place, easy popularization.3 is green
Environmental protection, without waste gas, waste liquid, waste sludge discharge.4 water quality, the water yield, water temperature are guaranteed, beneficial to thermal normal work.5 water intaking sides
Just, city tap-water, poor-quality water are available after transforming.6 aqueous medium iterative cycles are utilized, and can protect saving urban groundwater
Resource.7 water sources are stable, water temperature is adjustable, heat utilization rate is high, energy-efficient.8 without inflammable, explosive device, using safety.9
System long service life.Underground and ground tubing, corrosion-resistant, high temperature resistant, high pressure resistant, service life was up to more than 70 years.10 wells
Footpath is relatively small, and Jing cementing operations, and cement consolidation, underground without motion equipment do not result in stratum and collapse, do not interfere with ground
Building and urban facilities safety.11 well construction technology maturations, low cost, efficiency high.Leave unused on present society 2000m- in a large number
4000m oil-well rigs and outstanding wellbore construction troop, construction equipment and personnel are easy to tissue, and high-quality OCTG overstocks in a large number,
Price declines increasingly.12 heating systems are easy to control, easy to operate, easy care, manageability, and occupancy manpower is few, later maintenance expense
It is low.
Description of the drawings
Fig. 1 is structural representation of the present utility model
In figure（1）Heat exchanger,（2）Working medium softening plant,（3）Discharge pipe,（4）Discharger,（5）Working medium cavity volume,（6）
Injection device,（7）Ascending pipe,（8）Technology pipe,（9）Setting device,（10th, 11) working medium filter, (12,13) endothermic tube, (14)
Heat-storing material,（15、17）Adiabator,（16th, 18) delivery line.
Specific embodiment
1st, according to early stage geologic prospect, the suitable hot dry rock heat reservori position of selection, selected well location, foundation calorific requirement,
Thermal gradient, two footpath straight well of construction certain depth is flatly.
2nd, heat reservori position is directed at, delivery line is installed（16、18）Pipe string, in the outer filling heat insulator of pipe string（15、17）Build
Into guiding system.
3rd, some working medium are injected in delivery line（Calculate for demand meter according to heat）, observation Temperature of Working change, calculating hot dry rock
Heating load in the well section unit interval, and by measurement result and calorific requirement contrast in the unit interval, determine Fracturing Project, technical parameter
Calculate according to geologic data.
4th, endothermic tube is installed（12、13）, working medium filter（10、11）, technology pipe（8）, outside pipe string, fill heat-storing material
（14）To design well depth position.In technology pipe（8）It is middle that setting device is installed（9）.
5th, injection device is installed（6）, ascending pipe（7）, pipe lower end additional seat envelope device（9）, ascending pipe（7）Upper end and ground heat energy
Using equipment and working medium cavity volume（5）Docking.
6th, discharger is installed（4）, discharge pipe（3）, with heat exchanger（1）With working medium softening plant（2）Docking.
7th, the cycle fluid in delivery line required for disposable injected system.
8th, start discharger（4）, discharge system is started working, by heat exchanger（1）Working medium is in heat energy utilization equipment
Middle circulation, is back to working medium cavity volume（5）, heat-exchange system is injected by injection device.In the heat-exchange system with hot dry rock heat reservori in
Heat energy carry out energy exchange, being again introduced into guiding system after absorbing enough heat energy carries out next circulation.
Application example of the present utility model：Hot dry rock heats
Zhengzhou City Henan Province residential quarter hot dry rock heating project.Total 40000 ㎡ of heating area of this project.
Double footpath straight wells a bites, technical characterstic：By guiding system, heat-exchange system, injected system, discharge are set up in wellhole
Hot dry rock heat energy is derived by system.Each system collectively forms a closed blood circulation.
Benefit calculation：（1）Compare with coal-burning boiler, alternate standard uses coal：113.67 tons/ten thousand square metres/Heating Season
（2）Reduce CO2 emissions：283.71 tons/ten thousand square metres/Heating Season
（3）Reduce SO2 emissions：2.71 tons/ten thousand square metres/Heating Season
It is useless using this techniques save occupation of land space, saving water resource, reduces cost, heat utilization rate height, environmental protection, nothing
Gas, waste liquid, waste sludge discharge, social benefit are notable.
Claims (3)
1. hot dry rock（EGS）Standing column well heat-collecting device, it is characterised in that：Two footpath straight wells of construction certain depth are flatly, internal
Being provided with mono- group of guiding system of a. includes delivery line（16、18）, adiabator（15、17）；B. one group of heat-exchange system includes technology pipe
（8）, setting device（9）, working medium filter（10、11）, endothermic tube（12、13）, heat-storing material（14）；C. one group of injected system bag
Include working medium cavity volume（5）, injection device（6）, ascending pipe（7）；D. one group of discharge system includes heat exchanger（1）, working medium soften dress
Put（2）, discharge pipe（3）, discharger（4）.
2. the hot dry rock described in claim 1（EGS）Standing column well heat-collecting device, it is characterised in that：The hole diameter of two footpath straight wells and
Well depth, calculates according to calorific requirement and geothermic gradient and determines.
3. the hot dry rock described in claim 1 or 2（EGS）Standing column well heat-collecting device, it is characterised in that：Guiding system is by deriving
Pipe（16、18）Outer filling heat insulator（15、17）Composition；Endothermic tube in heat-exchange system（12、13）With technology pipe（8）, working medium filter
Clear device（10、11）It is connected, outside pipe, fills heat-storing material（14）, technology pipe（8）It is interior that setting device is installed（9）；Injected system by
Working medium cavity volume（5）, injection device（6）, ascending pipe（7）Connection composition, its top is connected with ground heat energy utilization equipment, bottom and
Heat-exchange system is connected, and the length of ascending pipe is determined according to heat exchange ratio calculation；Discharge system is by discharge pipe（3）With heat exchanger
（1）, working medium softening plant（2）Connection composition, the heat exchanger of discharge system（1）It is connected with ground heat energy utilization equipment, heat is handed over
Parallel operation（1）Heat-exchange capacity according to calorific requirement calculate determine；Four big systems constitute closed-cycle system, and internal injection is a certain amount of
Working medium, injection rate according to heat for demand meter calculate determine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696778.5U CN206131499U (en) | 2016-07-05 | 2016-07-05 | Do circulation of hot dry rock (EGS) individual well and adopt heat facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696778.5U CN206131499U (en) | 2016-07-05 | 2016-07-05 | Do circulation of hot dry rock (EGS) individual well and adopt heat facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206131499U true CN206131499U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620696778.5U Expired - Fee Related CN206131499U (en) | 2016-07-05 | 2016-07-05 | Do circulation of hot dry rock (EGS) individual well and adopt heat facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288673A (en) * | 2019-05-14 | 2020-06-16 | 陕西四季春清洁热源股份有限公司 | Interference-free geothermal energy gathering equipment |
-
2016
- 2016-07-05 CN CN201620696778.5U patent/CN206131499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288673A (en) * | 2019-05-14 | 2020-06-16 | 陕西四季春清洁热源股份有限公司 | Interference-free geothermal energy gathering equipment |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20210705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |