CN206361779U - Geothermal power generation heat supply step utilization system based on condenser recuperation of heat - Google Patents
Geothermal power generation heat supply step utilization system based on condenser recuperation of heat Download PDFInfo
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- CN206361779U CN206361779U CN201621321136.3U CN201621321136U CN206361779U CN 206361779 U CN206361779 U CN 206361779U CN 201621321136 U CN201621321136 U CN 201621321136U CN 206361779 U CN206361779 U CN 206361779U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
Abstract
The utility model discloses a kind of geothermal power generation heat supply step utilization system based on condenser recuperation of heat, including：Middle low-temperature electricity-generating unit, condenser, cooling tower, first order plate type heat exchanger, second level plate type heat exchanger, source pump, the first user side heating circulation water branch pipe, second user side heating circulation water branch pipe, the 3rd user side heating circulation water branch pipe；Middle low-temperature electricity-generating unit is connected to the water inlet of condenser first；Condenser, first order plate type heat exchanger, second level plate type heat exchanger are sequentially connected；The water inlet of cooling tower is connected with the delivery port of condenser the 3rd, and the delivery port of cooling tower is connected with the water inlet of condenser the 3rd.The geothermal power generation heat supply step utilization system can be realized and high-grade electric energy is produced on the premise of heat capacity is not influenceed, so as to improve the purpose of geothermal energy resources utilization ratio by circulation geothermal fluid.
Description
Technical field
The utility model is related to geothermal resource of hydrothermal type application field, more particularly, to a kind of geothermal power generation-heat supply ladder
Level utilization system.
Background technology
In geothermal resource of hydrothermal type application field, geothermal energy resources are a kind of reproducible clean energy resourcies, with clean environment firendly,
Widely used, stability is good, reusable edible the features such as, be a kind of real and competitive new energy.Although China
Thermal resource enriches, widely distributed, but lacks reasonable, efficient geothermal energy resources Land use systems at present.
Inventor has found that a large amount of geothermal heating systems single using (90-150 DEG C) progress of the middle temperature geothermal energy resources of hot water type are warm
Degree demand is relatively low (about 50 DEG C), is said from thermodynamics, heat quality causes waste over the ground；On the other hand, merely carry out
Generating is difficult to make full use of geothermal energy resources, there is the waste of geothermal energy heat.Rational cascade utilization geothermal energy, can be carried
Highland utilization efficiency of heat energy.But at present geothermal resource of hydrothermal type is generated electricity and heat supply cascade utilization design, still not
Making full use of for energy can be considered, therefore, it is necessary to develop a kind of geothermal power generation-heat supply step utilization system.
The information for being disclosed in the utility model background section is merely intended to deepen to general background of the present utility model
The understanding of technology, and be not construed as recognizing or imply the information structure in any form by those skilled in the art public affairs
The prior art known.
Utility model content
For rational cascade utilization geothermal energy, improve the utilization ratio of geothermal energy, it is necessary to develop a kind of geothermal power generation-
Heat supply step utilization system.
The utility model provides a kind of geothermal power generation based on condenser recuperation of heat-heat supply step utilization system,
Including：Middle low-temperature electricity-generating unit, condenser, first order plate type heat exchanger, second level plate type heat exchanger, source pump, first are used
Family side heating circulation water branch pipe, second user side heating circulation water branch pipe, the 3rd user side heating circulation water branch pipe；
The middle low-temperature electricity-generating unit is connected to the water inlet of condenser first；
The condenser, first order plate type heat exchanger, second level plate type heat exchanger are sequentially connected；
The first user side heating circulation water branch pipe is connected with the condenser；
The second user side heating circulation water branch pipe is connected with the first order plate type heat exchanger；
The 3rd user side heating circulation water branch pipe is connected with the condenser side of the source pump；
The second level plate type heat exchanger is connected with the vaporizer side of the source pump.
Further, middle low-temperature electricity-generating unit is connected to the water inlet of condenser first, and the high-temperature part of geothermal fluid is passed through
Cross the fluid after low-temperature electricity-generating unit is generated electricity to be transported in condenser, to carry out heating recuperation of heat.
Further, condenser, first order plate type heat exchanger, second level plate type heat exchanger, which are sequentially connected, refers to condenser
One delivery port is connected with the water inlet of first order plate type heat exchanger first, the delivery port of first order plate type heat exchanger first and the second step
The water inlet of formula heat exchanger first is connected, and the geothermal fluid for geothermal power generation-heat supply step utilization system provides flow channel.
Further, the first user side heating circulation water branch pipe is connected with condenser refers to the first user side heating circulation water
Branch pipe water inlet pipe is connected with the delivery port of condenser second, and the first user side heating circulation water branch pipe outlet pipe enters with condenser second
The mouth of a river is connected, and completes the first order circulation heating passage of step heat supply.
Further, heating circulation water branch pipe in second user side is connected with first order plate type heat exchanger refers to second user side
Heating circulation water branch pipe water inlet pipe is connected with the second delivery port of first order plate type heat exchanger, second user side heating circulation water branch
Pipe outlet pipe is connected with the second water inlet of first order plate type heat exchanger, completes the second level circulation heating passage of step heat supply.
Further, the 3rd user side heating circulation water branch pipe and the connection of the condenser side of source pump refer to the 3rd user
Side heating circulation water branch pipe water inlet pipe is connected with the condenser side delivery port of the source pump, the 3rd user side heating circulation water
Branch pipe outlet pipe is connected with the condenser side water inlet of the source pump, and the third level circulation heating for completing step heat supply leads to
Road.
Further, second level plate type heat exchanger and the connection of the vaporizer side of source pump refer to second level plate type heat exchanger
Second water inlet is connected with the delivery port of the vaporizer side of the source pump, the delivery port of second level plate type heat exchanger second and institute
The water inlet connection of the vaporizer side of source pump is stated, is completed between second level plate type heat exchanger and the vaporizer side of source pump
Heat exchange.
Further, geothermal power generation-heat supply step utilization system includes hydrocyclone, and hydrocyclone is installed on
Between producing well and middle low-temperature electricity-generating unit, for carrying out desanding to geothermal fluid.
Further, also have between second level plate type heat exchanger and the vaporizer side of source pump and water circulating pump is set, use
Heat in conveying geothermal fluid.
Further, the geothermal power generation-heat supply step utilization system also include cooling tower, the water inlet of cooling tower with
The delivery port of condenser the 3rd is connected, and the delivery port of cooling tower is connected with the water inlet of condenser the 3rd, used for cooling tower in non-heating
In season, it is responsible for cooling down condenser by the recirculated cooling water of cooling tower.
Further, the geothermal power generation-heat supply step utilization system also includes：Inverted well, for will be through described cold
But the geothermal tail water after tower cooler is by the inverted well recharge to underground, the delivery port of second level plate type heat exchanger first and inverted well
Connection.
Producing well is used to supply geothermal fluid medium.
Geothermal power generation of the present utility model-heat supply step utilization system can be realized by circulation geothermal fluid
Do not influence to produce high-grade electric energy on the premise of heat capacity, so as to improve the purpose of geothermal energy resources utilization ratio.
Geothermal power generation of the present utility model-heat supply step utilization system has other characteristics and advantage, and these are special
Property and advantage will be apparent from the accompanying drawing that is incorporated herein and subsequent specific embodiment, or will be incorporated herein
In accompanying drawing and subsequent specific embodiment in stated in detail, these the drawings and specific embodiments are provided commonly for explaining this reality
With new certain principles.
Brief description of the drawings
It is of the present utility model above-mentioned by the way that the utility model exemplary embodiment is described in more detail with reference to accompanying drawing
And other purposes, feature and advantage will be apparent, wherein, in the utility model exemplary embodiment, identical
Reference number typically represents same parts.
Fig. 1 shows geothermal power generation of the present utility model-heat supply step utilization system figure.
Drawing reference numeral explanation：
1-producing well；2-hydrocyclone；3-middle low-temperature electricity-generating unit；4-condenser；5-cooling tower；6-the first
Level plate type heat exchanger；7-second level plate type heat exchanger；8-source pump；9-inverted well；
The water inlet of 11-condenser first, the delivery port of 12-condenser first；The water inlet of 13-condenser second, 14-solidifying
The delivery port of vapour device second；The water inlet of 15-condenser the 3rd, the delivery port of 16-condenser the 3rd；
The water inlet of 21-first order plate type heat exchanger first, the delivery port of 22-first order plate type heat exchanger first；23-the
The water inlet of one-level plate type heat exchanger second, the delivery port of 24-first order plate type heat exchanger second；
The water inlet of 31-second level plate type heat exchanger first, the delivery port of 32-second level plate type heat exchanger first；33-the
Two grades of water inlets of plate type heat exchanger second, the delivery port of 34-second level plate type heat exchanger second；
The user side heating circulation water branch pipes of a1-first；A2-second user side heating circulation water branch pipe；A3-the 3rd is used
Family side heating circulation water branch pipe；
The user side heating circulation water branch pipe water inlet pipes of a11-first, the user side heating circulation water branch pipe water outlets of a12-first
Pipe；A21-second user side heating circulation water branch pipe water inlet pipe, a22-second user side heating circulation water branch pipe outlet pipe；
The user side heating circulation water branch pipe water inlet pipes of a31-the 3rd, the user side heating circulation water branch pipe outlet pipes of a32-the 3rd；
The utility model is described in more detail with reference to the accompanying drawings and detailed description, it is of the present utility model
Protection domain is not limited to following embodiments.
Embodiment
The utility model is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing of the present utility model preferred
Embodiment, however, it is to be appreciated that may be realized in various forms the utility model without that should be limited by embodiments set forth here
System.On the contrary, these embodiments are provided so that the utility model is more thorough and complete, and can will be of the present utility model
Scope intactly conveys to those skilled in the art.
The utility model provides a kind of geothermal power generation-heat supply step utilization system, including：Middle cryogenerator
Group, condenser, first order plate type heat exchanger, second level plate type heat exchanger, source pump, the first user side heating circulation water branch pipe
A1, second user side heating circulation water branch pipe a2, the 3rd user side heating circulation water branch pipe a3；
Condenser, first order plate type heat exchanger, second level plate type heat exchanger are sequentially connected；
First user side heating circulation water branch pipe a1 is connected with condenser；
Second user side heating circulation water branch pipe a2 is connected with first order plate type heat exchanger；
3rd user side heating circulation water branch pipe a3 and the condenser side of source pump are connected；
Second level plate type heat exchanger and the vaporizer side of source pump are connected.
Middle low-temperature electricity-generating unit 3 is connected to the first water inlet of condenser 11, low during the high-temperature part of geothermal fluid is passed through
Fluid after warm generating set is generated electricity is transported in condenser, to carry out heating recuperation of heat.
Condenser 4, first order plate type heat exchanger 6, second level plate type heat exchanger 7, which are sequentially connected, refers to the water outlet of condenser first
Mouth 12 is connected with the first water inlet of first order plate type heat exchanger 21, first order plate type heat exchanger the first delivery port 22 and the second step
The first water inlet of formula heat exchanger 31 is connected, and for the geothermal fluid of geothermal power generation-heat supply step utilization system, to provide flowing logical
Road.
First user side heating circulation water branch pipe a1 is connected with condenser 4 refers to that the first user side heating circulation water branch pipe enters
Water pipe a11 is connected with the second delivery port of condenser 14, the first user side heating circulation water branch pipe outlet pipe a12 and condenser second
Water inlet 13 is connected, and completes the first order circulation heating passage of step heat supply.
Second user side heating circulation water branch pipe a2 is connected with first order plate type heat exchanger refers to that the heating of second user side is followed
Ring water branch pipe water inlet pipe a21 is connected with the second delivery port 24 of first order plate type heat exchanger, second user side heating circulation water branch
Pipe outlet pipe a22 is connected with the second water inlet 23 of first order plate type heat exchanger, completes the second level circulation heating of step heat supply
Passage.
3rd user side heating circulation water branch pipe a3 and the connection of the condenser side of source pump refer to the 3rd user side heating
Recirculated water branch pipe water inlet pipe a31 is connected with the condenser side delivery port of the source pump, the 3rd user side heating circulation water branch
Pipe outlet pipe a32 is connected with the condenser side water inlet of the source pump, and the third level circulation heating for completing step heat supply leads to
Road.
Second level plate type heat exchanger 7 is connected with the vaporizer side of source pump 8 refers to that second level plate type heat exchanger second enters
The mouth of a river 33 is connected with the delivery port of the vaporizer side of the source pump, the second delivery port of second level plate type heat exchanger 34 with it is described
The water inlet connection of the vaporizer side of source pump, is completed between second level plate type heat exchanger and the vaporizer side of source pump
Heat exchange.
Preferably, geothermal power generation-heat supply step utilization system includes hydrocyclone 2, and hydrocyclone 2 is installed on
Between producing well 1 and middle low-temperature electricity-generating unit 3, for carrying out desanding to geothermal fluid.
Preferably, also have between second level plate type heat exchanger 7 and the vaporizer side of source pump 8 and water circulating pump is set, use
Heat in conveying geothermal fluid.
Preferably, the geothermal power generation-heat supply step utilization system also include cooling tower 5, the water inlet of cooling tower 5 with
The delivery port 16 of condenser the 3rd is connected, and the delivery port of cooling tower is connected with the water inlet 15 of condenser the 3rd, used for cooling tower in non-
Warm season, is responsible for cooling down condenser by the recirculated cooling water of cooling tower.
Preferably, the geothermal power generation-heat supply step utilization system also include inverted well 9, for by geothermal tail water by
The inverted well recharge to underground, the first delivery port of second level plate type heat exchanger 32 is connected with inverted well.
Preferably, vaccum-pumping equipment is configured at the position of condenser 4.
Producing well 1 is used to supply geothermal fluid medium.
Preferably, middle low-temperature electricity-generating unit 3 can use full flow type screw expander generating set.
Preferably, when GEOTHERMAL WATER air content is higher, air-water separator is configured with behind hydrocyclone 2.
Geothermal power generation of the present utility model-heat supply step utilization system can be realized by circulation geothermal fluid
Do not influence to produce high-grade electric energy on the premise of heat capacity, so as to improve the purpose of geothermal energy resources utilization ratio.
Embodiment 1
Fig. 1 shows geothermal power generation of the present utility model-heat supply step utilization system figure, as illustrated, producing well 1
For supplying geothermal fluid, geothermal fluid is the middle temperature GEOTHERMAL WATER of hot water type in this embodiment；Hydrocyclone 2 is installed on production
Between well 1 and middle low-temperature electricity-generating unit 3, for carrying out desanding to geothermal fluid；Middle low-temperature electricity-generating unit 3 is connected to condenser
One water inlet 11, for the middle temperature GEOTHERMAL WATER of hot water type after generating to be transported into condenser 4；For cooling down condenser 4
Cooling tower 5 is connected with condenser, and the water inlet of cooling tower 5 is connected with the delivery port 16 of condenser the 3rd, the delivery port of cooling tower with
The water inlet 15 of condenser the 3rd is connected；Condenser 4 is connected with first order plate type heat exchanger 6, the first delivery port of condenser 12 and
The first water inlet of one-level plate type heat exchanger 21 is connected, and first order plate type heat exchanger 6 is connected with second level plate type heat exchanger 7, and first
The first delivery port of level plate type heat exchanger 22 is connected with the first water inlet of second level plate type heat exchanger 31, is geothermal power generation-heat supply ladder
The geothermal fluid of level utilization system provides flow channel；Second level plate type heat exchanger 7 and the vaporizer side of source pump 8 connect
Connect, the second water inlet of second level plate type heat exchanger 33 is connected with the delivery port of the vaporizer side of the source pump, the second step
The second delivery port of formula heat exchanger 34 is connected with the water inlet of the vaporizer side of the source pump, completes second level plate type heat exchanger
Heat exchange between the vaporizer side of source pump；Second level plate type heat exchanger 7 is also connected with inverted well 9, by hydro-thermal
The middle temperature underground heat Water Sproading of type, the first delivery port of second level plate type heat exchanger 32 is connected with inverted well 9.
First user side heating circulation water branch pipe a1 is connected with condenser 4, to complete the first order circulation heating of user side,
First user side heating circulation water branch pipe water inlet pipe a11 is connected with the second delivery port of condenser 14, the first user side heating circulation
Water branch pipe outlet pipe a12 is connected with the second water inlet of condenser 13；Second user side heating circulation water branch pipe a2 and the first step
Formula heat exchanger is connected, to complete user side second level circulation heating, second user side heating circulation water branch pipe water inlet pipe a21 and the
Second delivery port 24 of one-level plate type heat exchanger is connected, second user side heating circulation water branch pipe outlet pipe a22 and the first step
Second water inlet 23 of formula heat exchanger is connected；3rd user side heating circulation water branch pipe a3 and the condenser side of source pump connect
Connect, to complete user side third level circulation heating, the 3rd user side heating circulation water branch pipe water inlet pipe a31 and the source pump
The connection of condenser side delivery port, the condenser of the 3rd user side heating circulation water branch pipe outlet pipe a32 and the source pump
Side water inlet connection.
The course of work of geothermal power generation-heat supply step utilization system is：The middle temperature GEOTHERMAL WATER of hot water type passes through producing well 1
After being evacuated to ground through immersible pump, first pass around hydrocyclone 2 and desanding is carried out to the middle temperature GEOTHERMAL WATER of hot water type, then by after desanding
The middle temperature GEOTHERMAL WATER of hot water type be transported to middle low-temperature electricity-generating unit 3, with using the middle temperature GEOTHERMAL WATER of hot water type high-temperature part carry out
Geothermal power generation, the middle temperature GEOTHERMAL WATER of hot water type expansion work in middle low-temperature electricity-generating unit 3.Low-temperature electricity-generating unit 3 is sent out in process
After electricity, geothermal fluid enters cooling to be subjected after condenser 4 with the state of steam-water mixing.For the geothermal power generation-heat supply step
Utilization system, in non-warm season, is responsible for cooling down condenser 4, underground heat after cooling by the recirculated cooling water of cooling tower 5
Tail water is by the recharge of inverted well 9 to underground.In warm season, condensing is responsible for by the heating cyclic softening water by user side part of heating
The cooling of device 4, and the part sensible heat for the middle temperature GEOTHERMAL WATER of latent heat and hot water type for reclaiming exhaust steam by condenser 4, exhaust steam is in condensing
All liquefied in device, the middle temperature GEOTHERMAL WATER of hot water type enters after first order plate type heat exchanger 6 and the heat exchange of another part heating circulation water,
Exchanged heat, then further utilized by the fluid heat after the heat exchanging of source pump 8 into second level plate type heat exchanger 7, finally
The recharge of the geothermal fluid after recycling is completed by inverted well 9.
Geothermal power generation of the present utility model-heat supply step utilization system can be realized by circulation geothermal fluid
Do not influence to produce high-grade electric energy on the premise of heat capacity, so as to improve the purpose of geothermal energy resources utilization ratio.
It will be understood by those skilled in the art that above to the purpose of the description of embodiments of the invention only for exemplarily saying
The beneficial effect of bright embodiment of the present utility model, is not intended to embodiment of the present utility model being limited to given any
Example.
Claims (10)
1. a kind of geothermal power generation based on condenser recuperation of heat-heat supply step utilization system, it is characterised in that including：In
Low-temperature electricity-generating unit, condenser, first order plate type heat exchanger, second level plate type heat exchanger, source pump, the first user side heating
Recirculated water branch pipe (a1), second user side heating circulation water branch pipe (a2), the 3rd user side heating circulation water branch pipe (a3)；
The middle low-temperature electricity-generating unit is connected to the water inlet of condenser first (11)；
The condenser, first order plate type heat exchanger, second level plate type heat exchanger are sequentially connected；
The first user side heating circulation water branch pipe (a1) is connected with the condenser；
The second user side heating circulation water branch pipe (a2) is connected with the first order plate type heat exchanger；
The 3rd user side heating circulation water branch pipe (a3) is connected with the condenser side of the source pump；
The second level plate type heat exchanger is connected with the vaporizer side of the source pump.
2. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that
The delivery port of condenser first (12) is connected with the water inlet of first order plate type heat exchanger first (21)；First order plate type heat exchanger
First delivery port (22) is connected with the water inlet of second level plate type heat exchanger first (31).
3. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that the first user side
Heating circulation water branch pipe water inlet pipe (a11) is connected with the delivery port of condenser second (14), the first user side heating circulation water branch pipe
Outlet pipe (a12) is connected with the water inlet of condenser second (13).
4. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that second user side
Heating circulation water branch pipe water inlet pipe (a21) is connected with the second delivery port (24) of first order plate type heat exchanger, and second user side is adopted
Warm recirculated water branch pipe outlet pipe (a22) is connected with the second water inlet (23) of first order plate type heat exchanger.
5. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that the 3rd user side
Heating circulation water branch pipe water inlet pipe (a31) is connected with the condenser side delivery port of the source pump, and the 3rd user side heating is followed
Ring water branch pipe outlet pipe (a32) is connected with the condenser side water inlet of the source pump.
6. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that the second level is board-like
The water inlet of heat exchanger second (33) is connected with the delivery port of the vaporizer side of the source pump, second level plate type heat exchanger second
Delivery port (34) is connected with the water inlet of the vaporizer side of the source pump.
7. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that further comprise
Hydrocyclone；
The hydrocyclone is installed between producing well and the middle low-temperature electricity-generating unit, for being carried out to the geothermal fluid
Desanding.
8. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that the second level
Water circulating pump is set between plate type heat exchanger and the vaporizer side of the source pump.
9. geothermal power generation according to claim 1-heat supply step utilization system, it is characterised in that further comprise
Cooling tower, in non-warm season, being responsible for cooling down condenser by the recirculated cooling water of cooling tower；
The water inlet of the cooling tower is connected with the delivery port (16) of condenser the 3rd, the delivery port of the cooling tower and condenser the
Three water inlets (15) are connected.
10. geothermal power generation according to claim 9-heat supply step utilization system, it is characterised in that also including recharge
Well；
The delivery port of second level plate type heat exchanger first (32) is connected with the inverted well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321136.3U CN206361779U (en) | 2016-12-02 | 2016-12-02 | Geothermal power generation heat supply step utilization system based on condenser recuperation of heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321136.3U CN206361779U (en) | 2016-12-02 | 2016-12-02 | Geothermal power generation heat supply step utilization system based on condenser recuperation of heat |
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| Publication Number | Publication Date |
|---|---|
| CN206361779U true CN206361779U (en) | 2017-07-28 |
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ID=59371869
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621321136.3U Active CN206361779U (en) | 2016-12-02 | 2016-12-02 | Geothermal power generation heat supply step utilization system based on condenser recuperation of heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761961A (en) * | 2019-11-20 | 2020-02-07 | 北京王川景观设计有限公司 | Exploitation and utilization system and exploitation and utilization method for geothermal energy of dry hot rock |
-
2016
- 2016-12-02 CN CN201621321136.3U patent/CN206361779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761961A (en) * | 2019-11-20 | 2020-02-07 | 北京王川景观设计有限公司 | Exploitation and utilization system and exploitation and utilization method for geothermal energy of dry hot rock |
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