CN208108526U - A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system - Google Patents
A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system Download PDFInfo
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- CN208108526U CN208108526U CN201820202336.XU CN201820202336U CN208108526U CN 208108526 U CN208108526 U CN 208108526U CN 201820202336 U CN201820202336 U CN 201820202336U CN 208108526 U CN208108526 U CN 208108526U
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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 provides a kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system, straight well and directional well including reservoir is arranged in, it is provided with the first wellhead assembly and the second wellhead assembly being separately connected with the straight well and directional well on the ground, first wellhead assembly and the second wellhead assembly pass through the first pipeline and the second pipeline respectively and connect respectively with enclosed switching valve group, the first pipeline successively passes through desanding device and heat exchanger connection terminal temperature difference after enclosed switching valve group, the second pipeline successively passes through heat exchanger and first circulation pump connection terminal temperature difference after enclosed switching valve group, closed cycle processing system is also connected on the second pipeline of enclosed switching valve group rear end.The utility model forms convection heat conduction layer with sandstone heat storage platform closed type hot conduction heat transfer technology, and current deflecting is the systemic circulation of inverted well and producing well, and hot-fluid is directed to the convection current heat transfer of heat reservori and well casing, it is ensured that geothermal energy resources are unattenuated steadily in the long term.
Description
Technical field
The utility model belongs to heat transfer heat transfer technology, and in particular to a kind of sandstone heat storage estrade well enclosed heat transfer heat exchange
System.
Background technique
Guanzhong basin main body settle about 3.3 DEG C/100m of position Xi'an depression Average geothermal gradient, i.e., stratum of invariable temperature with
Under, well depth is every to increase by 100 meters, and ground temperature increases by 3.3 DEG C.
Guanzhong basin hot water type Geothermal Exploitation and Utilization well spacing is generally larger, and recovery well is not less than with same layer inverted well spacing
500m, same layer recovery well and recovery well spacing are greater than 1000m.The setting of well spacing strongly limits mid-deep strata hot water type underground heat
It is mating that development and utilization system is applied to city heat supply.
At this stage, the hot water storage heat type geothermal energy development of mid-deep strata sandstone is insufficient using horizontal more much lower enterprise technology strength
To support geothermal reinjection technology immature, geothermal well random mining is only adopted and is not filled, causes the unsustainable exploitation benefit of geothermal energy resources
With.
Utility model content
In view of this, the main purpose of the utility model is to provide a kind of sandstone heat storage estrade well enclosed heat transfer heat exchange system
System.
The technical solution adopted in the utility model is：
A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system, including
Reservoir, which is arranged in, as recovery well and inverted well has the straight well and directional well for exchanging function, is arranged on the ground
There are the first wellhead assembly and the second wellhead assembly being separately connected with the straight well and directional well, first wellhead assembly and
Two wellhead assemblies pass through the first pipeline and the second pipeline respectively and connect respectively with enclosed switching valve group, the after enclosed switching valve group
One pipeline successively passes through desanding device and heat exchanger connection terminal temperature difference, and the second pipeline successively passes through after enclosed switching valve group
Heat exchanger and first circulation pump connection terminal temperature difference, are also connected with enclosed on the second pipeline of enclosed switching valve group rear end
Circulating treating system.
Further, the enclosed switching valve group includes the connecting line with the first pipeline and the second piping connection, in institute
It states and is provided with third control valve on rear side of connecting line and the first piping connection end, before second pipeline and connecting line
End is provided with the 4th control valve, and the 5th control valve is provided on connecting line.
Further, the closed cycle processing system includes second circulation pump, depassing unit, grade one filter group and two
Grade filter group, the second circulation pump are connect with depassing unit, and the depassing unit is connect with grade one filter group, and described one
Grade filter group is connect with secondary filter group.
Further, first pipeline and the second pipeline are set respectively at nearly first wellhead assembly and the second wellhead assembly
It is equipped with the first control valve and the second control valve.
The utility model has the advantages that：
Producing well and inverted well are estrade well, 5 meters of well head spacing, 450 meters to 800 meters of the thermally conductive interlamellar spacing in underground.Pipeline system
System be provided with closed cycle switch valve group so that two mouthfuls of wells adopt filling exchange, be able to solve geothermal exploitation well spacing at this stage it is excessive,
Space occupied is big, and inconvenience caused by construction site coordination difficulty is big, drilling well is moved reduces project drilling cost simultaneously.
Sandstone heat stores up platform closed type hot and conducts heat transfer technology, forms convection heat conduction layer, current deflecting is inverted well
With the systemic circulation of producing well, hot-fluid is directed to the convection current heat transfer of heat reservori and well casing, it is ensured that geothermal energy resources are steadily in the long term not
Decaying.
Detailed description of the invention
Fig. 1 is the system framework schematic diagram of the utility model；
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing and specific embodiment, in the signal of this utility model
Property embodiment and explanation be used to explain the utility model, but be not intended to limit the scope of the present invention.
Referring to Fig.1, the utility model provides a kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system, including setting
There is in reservoir 100 as recovery well and inverted well the straight well 1 and directional well 2 for exchanging function, be provided on the ground and institute
State the first wellhead assembly 3 and the second wellhead assembly 4 that straight well 1 and directional well 2 are separately connected, first wellhead assembly 3 and
Two wellhead assemblies 4 switch valve group 5 with enclosed respectively by the first pipeline and the second pipeline respectively and connect, on first pipeline
It is provided with the first control valve of the first wellhead assembly 3 of connection and enclosed switching valve group 5, is provided with connection on second pipeline
Second control valve of the second wellhead assembly and enclosed switching valve group 5, the enclosed switching valve group 5 include and the first pipeline and second
The connecting line 52 of piping connection is provided with third control valve on rear side of the connecting line 52 and the first piping connection end
50, the front end of second pipeline and connecting line 52 is provided with the 4th control valve 53, and be arranged on connecting line 52
There is the 5th control valve 51.First pipeline successively passes through desanding device 6 after enclosed switching valve group 5 and heat exchanger 7 connects end
User 9, and second pipeline successively passes through 8 connection terminal temperature difference 9 of heat exchanger 7 and first circulation pump after enclosed switching valve group 5,
Closed cycle processing system 10, the closed cycle processing are also connected on the second pipeline of enclosed switching 5 rear end of valve group
System 10 includes that second circulation pumps 12, depassing unit 13, grade one filter group interconnected (grade one filter 14A, level-one mistake
Filter 14B, grade one filter 14C) and secondary filter group (secondary filter 15A, secondary filter interconnected
15B, secondary filter 15C), the second circulation pump 12 is connect with depassing unit 13, the depassing unit 13 and by-pass filtration
The connection of device group, the grade one filter group are connect with secondary filter group.
When system is run, underground heat straight well and directional well are to adopt filling to exchange well, extract producing well GEOTHERMAL WATER, ground using immersible pump
Hot water is that terminal temperature difference 9 provides heat source by 7 indirect heat exchange of heat exchanger after desanding device 6, the low temperature geothermal water after heat exchange
After the processing of enclosed circulating treating system 10, using nature or pressuring method recharge to inverted well, in closed cycle processing system
10 and second pipeline connecting line on be provided with the 6th control valve.Producing well and inverted well are estrade well, 5 meters of well head spacing,
450 meters to 800 meters of the thermally conductive interlamellar spacing in underground.Two mouthfuls of wells are to adopt filling interchangeabling form, form convection heat conduction layer in water intaking section, really
It is unattenuated steadily in the long term geothermal energy resources have been protected.Pipe-line system is provided with closed cycle and switches valve group, exchanges so that two mouthfuls of wells adopt filling,
Be able to solve at this stage that geothermal exploitation well spacing is excessive, space occupied is big, construction site coordinate difficulty is big, caused by drilling well resettlement
It is inconvenient to reduce project drilling cost simultaneously.
Sandstone heat stores up platform closed type hot and conducts heat transfer technology, forms convection heat conduction layer, current deflecting is inverted well
With the systemic circulation of producing well, hot-fluid is directed to the convection current heat transfer of heat reservori and well casing, it is ensured that geothermal energy resources are steadily in the long term not
Decaying.
The utility model has following social benefit：By taking one group of 3000 meters of deep-well closed type hot conducts heat-exchange system as an example,
Underground heat water yield can reach 100m3/h, about 90 DEG C of temperature, can provide thermic load 6MW or more by indirect heat exchange, can meet 15
Ten thousand m2 cell heating demands truly reach efficient closed cycle heat transfer heat exchange mode.
Technical solution disclosed in the utility model embodiment is described in detail above, it is used herein specifically
Embodiment is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to
Help understands the principle of the utility model embodiment；At the same time, for those skilled in the art, it is real according to the utility model
Example is applied, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be understood
For limitations of the present invention.
Claims (4)
1. a kind of sandstone heat stores up estrade well enclosed heat transfer heat-exchange system, which is characterized in that including
Reservoir, which is arranged in, has the straight well and directional well for exchanging function as recovery well and inverted well, be provided on the ground with
The first wellhead assembly and the second wellhead assembly that the straight well and directional well are separately connected, first wellhead assembly and the second well
Mouth device passes through the first pipeline and the second pipeline respectively and connect respectively with enclosed switching valve group, the first pipe after enclosed switching valve group
Desanding device and heat exchanger connection terminal temperature difference are successively passed through in road, and the second pipeline is successively by heat exchange after enclosed switching valve group
Device and first circulation pump connection terminal temperature difference, are also connected with closed cycle on the second pipeline of enclosed switching valve group rear end
Processing system.
2. sandstone heat according to claim 1 stores up estrade well enclosed heat transfer heat-exchange system, which is characterized in that the enclosed
Switching valve group includes the connecting line with the first pipeline and the second piping connection, in the connecting line and the first piping connection end
Rear side be provided with third control valve, the front end of second pipeline and connecting line is provided with the 4th control valve, Yi Ji
The 5th control valve is provided on connecting line.
3. sandstone heat according to claim 1 stores up estrade well enclosed heat transfer heat-exchange system, which is characterized in that the enclosed
Circulating treating system includes second circulation pump, depassing unit, grade one filter group and secondary filter group, the second circulation pump
It is connect with depassing unit, the depassing unit is connect with grade one filter group, the grade one filter group and secondary filter group
Connection.
4. sandstone heat according to claim 1 stores up estrade well enclosed heat transfer heat-exchange system, which is characterized in that described first
Pipeline and the second pipeline are respectively arranged with the first control valve and the second control at nearly first wellhead assembly and the second wellhead assembly
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202336.XU CN208108526U (en) | 2018-02-06 | 2018-02-06 | A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820202336.XU CN208108526U (en) | 2018-02-06 | 2018-02-06 | A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system |
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| Publication Number | Publication Date |
|---|---|
| CN208108526U true CN208108526U (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820202336.XU Active CN208108526U (en) | 2018-02-06 | 2018-02-06 | A kind of sandstone heat storage estrade well enclosed heat transfer heat-exchange system |
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| CN (1) | CN208108526U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197449A (en) * | 2020-09-08 | 2021-01-08 | 中国地质大学（武汉） | Method and system for relieving permeability reduction of geothermal reservoir |
| CN113091336A (en) * | 2021-04-02 | 2021-07-09 | 中石化绿源地热能(陕西)开发有限公司 | Hydrothermal geothermal exploitation system and method |
-
2018
- 2018-02-06 CN CN201820202336.XU patent/CN208108526U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197449A (en) * | 2020-09-08 | 2021-01-08 | 中国地质大学（武汉） | Method and system for relieving permeability reduction of geothermal reservoir |
| CN113091336A (en) * | 2021-04-02 | 2021-07-09 | 中石化绿源地热能(陕西)开发有限公司 | Hydrothermal geothermal exploitation system and method |
| CN113091336B (en) * | 2021-04-02 | 2024-05-14 | 西安交通大学 | Water-heating geothermal development system and method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 712000 14 Development Building, Development Building, 4 West Zhonghua Road, Xianyang, Shaanxi. Patentee after: Sinopec green source geothermal (Shaanxi) Development Co.,Ltd. Address before: 712000 14 Development Building, Development Building, 4 West Zhonghua Road, Xianyang, Shaanxi. Patentee before: SHAANXI LVYUAN GEOTHERMAL ENERGY DEVELOPMENT Co.,Ltd. |