CN106225272A - Geothermal energy resources wellhead assembly - Google Patents
Geothermal energy resources wellhead assembly Download PDFInfo
- Publication number
- CN106225272A CN106225272A CN201610776357.8A CN201610776357A CN106225272A CN 106225272 A CN106225272 A CN 106225272A CN 201610776357 A CN201610776357 A CN 201610776357A CN 106225272 A CN106225272 A CN 106225272A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- hot water
- valve
- delivery pipe
- reflux line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Check Valves (AREA)
Abstract
Geothermal energy resources wellhead assembly, including sleeve pipe, hot water delivery pipe road and cooling water reflux line, threaded with the well head of geothermal well in one end of described sleeve pipe, the other end is simultaneously connected with hot water delivery pipe road and cooling water reflux line, described sleeve pipe is provided with effusion meter with the junction in hot water delivery pipe road and cooling water reflux line, described sleeve pipe is provided with flange type sluice valve, described hot water delivery pipe road and cooling water reflux line and is provided with ultrasonic calorimeter, Pressure gauge and several valves.Heat, warm water in geothermal well can be transported in industry application by the present invention, and the underground heat well water that the most also can cool down after using is back in geothermal well, and hot water delivery pipe road and cooling water reflux line all can realize double shield sealing.
Description
Technical field
The present invention relates to geothermal energy resources wellhead assembly, belong to geothermal well technical field.
Background technology
Geothermal well, refers to what the geothermal energy of well depth about 3500 meters or the water temperature thermal water more than 30 DEG C carried out generating electricity
Method and apparatus, underground heat divides high temperature, middle gentle low temperature three class.High 150 DEG C, exist in vapour form, belong to high-temperature geothermal；90℃
～150 DEG C, exist with forms such as the mixture of water and steam, belong to middle temperature underground heat；Higher than 25 DEG C, less than 90 DEG C, with warm water, temperature
The form such as hot water, hot water exists, and belongs to low temperature underground heat.
High-temperature geothermal is suitable for generating, and middle temperature underground heat can generate electricity it can also be used to housing heating, and low temperature underground heat then can be used for washing
Bath, medical treatment, it is also possible to for heating and chamber planting, aquaculture etc..
The water temperature of the geographical position normally hot well of China's East China one band, less than 90 degrees Celsius, is generally used for industrial
On the way.And collection, conveying technology for geothermal well is the most immature, particularly with the wellhead assembly of geothermal well, also the most completely
Ripe device.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention discloses a kind of geothermal energy resources wellhead assembly, its concrete technical scheme is such as
Under:
Geothermal energy resources wellhead assembly, this wellhead assembly is installed on the well head of geothermal well, for being aspirated by the hot water in geothermal well
Coming, the cooling water that the heat energy of this hot water is formed after being utilized is transported in geothermal well by this wellhead assembly, this wellhead assembly bag
Including sleeve pipe, hot water delivery pipe road and cooling water reflux line, threadeds with the well head of geothermal well in one end of described sleeve pipe, another
End is simultaneously connected with hot water delivery pipe road and cooling water reflux line, described sleeve pipe and hot water delivery pipe road and cooling water reflux line
Junction be provided with effusion meter, described sleeve pipe is provided with flange type sluice valve, described hot water delivery pipe road and cooling water return duct
Road is provided with ultrasonic calorimeter, Pressure gauge and several valves.
Ultrasonic flowmeter selected by described effusion meter, and described ultrasonic calorimeter selects Double-sound-track ultrasonic heat meter.
Valve on several described hot water delivery pipe roads includes flange form butterfly valve, swing check valve and flange form ball
The erection sequence of valve, described Pressure gauge and several described valves is: from the connection end of hot water delivery pipe road and effusion meter to heat
The water side in water delivery pipe road is flange form butterfly valve, Pressure gauge, swing check valve and flange type ball valve successively, and described hot water is defeated
Going out the ultrasonic calorimeter on pipeline between Pressure gauge and swing check valve, this Pressure gauge passes through a threeway plug valve
Door is installed with hot water delivery pipe road.
Valve on several described cooling water reflux lines includes flange form butterfly valve and flange type ball valve, described Pressure gauge
With the erection sequence of valve several described it is: from the water inlet end of cooling water reflux line to cooling water reflux line and effusion meter
Connection end be flange type ball valve, Pressure gauge and flange form butterfly valve successively, the ultrasound wave heat on described cooling water reflux line
Epi-position is between Pressure gauge and flange form butterfly valve, and this Pressure gauge is pacified with cooling water reflux line by a three-way cock valve
Dress.
Described cooling water reflux line extends transversely through inflow-rate of water turbine meter, extends through the cooling water reflux line of the effusion meter other end
End be provided with flange form butterfly valve.
Being provided with the perforation of several cables and several suspension ring on described effusion meter, described cable punch inside diameter is φ
25mm, described cable perforation inner peripheral surface is provided with screw thread, and equipped with Gask-O-Seal and blind plugging.
Described sleeve pipe and flange type sluice valve and effusion meter, flange form butterfly valve, swing check valve and flange type ball valve are with right
The hot water delivery pipe road answered or the junction of cooling water reflux line all use Flange joint, described flange connections all to use
SW with outside ring seals.
Described flange form butterfly valve uses hard sealing, and flow resistance coefficient is not more than 0.2, can bidirectional bearing, and be provided with display its
The indicator of butterfly plate position, the surfaces externally and internally of described flange form butterfly valve, all through blasting treatment, all scribbles two-layer epoxy resin enamelled coating,
The gross thickness of two-layer epoxy resin enamelled coating is more than 0.3mm.
The operation principle of the present invention is:
The present invention, heat, warm water in geothermal well are pumped into well head, the entrance of heat, warm water by the immersible pump being arranged in geothermal well
In sleeve pipe, open the flange type sluice valve on sleeve pipe, flange form butterfly valve, swing check valve and the flange on hot water delivery pipe road
Formula ball valve, closes the flange form butterfly valve on cooling water reflux line and flange type ball valve, and heat, warm water enter hot water delivery pipe road,
And then it is transported at commercial Application, effusion meter to be opened and the ultrasound wave heat being arranged on hot water delivery pipe road before conveying
Table, it is simple to heat, the flow of warm water in monitoring pipeline at any time, to the heat in commercial Application and suction geothermal well, the flow of warm water
Reference is provided.Piezometer on hot water delivery pipe road provides hydraulic parameters in pipeline.
After in heat, warm water, heat energy is utilized, heat, warm water become cooling water, close and are positioned at the immersible pump within geothermal well, close
Close flange form butterfly valve, swing check valve and the flange type ball valve on hot water delivery pipe road, open on cooling water reflux line
Flange form butterfly valve and flange type ball valve, be input to cooling water in sleeve pipe, and then is transmitted back in geothermal well.
The perforation of several cables and several suspension ring on effusion meter are deep into the diving within geothermal well for fixing
The cable of pump and connecting line, and the cable of the monitoring device within geothermal well and connecting line.
The invention has the beneficial effects as follows:
1. the present invention, sleeve pipe threadeds with geothermal well import, beneficially the maintenance of later stage geothermal well and pacifying on sleeve pipe
Dress measure；
2. the present invention, selects ultrasonic flowmeter, it is possible to the discharge in detection sleeve pipe in time, and is capable of allowing hot water export
Pipeline and cooling water reflux line are simultaneously connected with the water side at effusion meter, when using different pipeline, it is possible to switch voluntarily；
3. being provided with ultrasonic calorimeter on the present invention, hot water delivery pipe road and cooling water reflux line, it is right to measure in time
Answer the discharge in pipeline, provide reference data to commercial Application；
4. it is provided with Pressure gauge on the present invention, hot water delivery pipe road and cooling water reflux line, and Pressure gauge is with corresponding
It is provided with three-way cock valve between pipeline, it is simple to manometric installation, also allows for from hot water delivery pipe road and cooling water backflow
Pipeline takes out water sample, the various performance parameters of water in the corresponding pipeline of test；
5. the present invention, all of flange connections all uses SW with outside ring to seal, it is achieved fully seals, and can remedy in time
Seal, it is simple to maintenance, reduce cost, reduce the trouble of dismounting；
6. the present invention, hot water delivery pipe road and cooling water reflux line are all at least provided with twice valve, it is achieved double shield is only
Water, when maintenance or use, more secure；
7. the present invention, flange form butterfly valve has the advantages such as anticorrosion, environmental protection, flow resistance coefficient be little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention,
Reference numerals list: 1 sleeve pipe, 2 flange type sluice valve, 3 cooling water reflux lines, 4 ultrasonic calorimeters, 5
Flange type ball valve, 6 swing check valves, 7 three-way cock valves, 8 Pressure gauges, 9 flange form butterfly valves, 10 hot water are defeated
Go out pipeline, 11 suspension ring, 12 cable perforation.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention.It should be understood that following detailed description of the invention is only
For the present invention being described rather than limiting the scope of the present invention.
Fig. 1 is the structural representation of the present invention, visible in conjunction with accompanying drawing, these geothermal energy resources wellhead assembly, and this wellhead assembly is pacified
It is loaded on the well head of geothermal well, for aspirating by the hot water in geothermal well, the cooling that the heat energy of this hot water is formed after being utilized
Water is transported in geothermal well by this wellhead assembly, and this wellhead assembly includes sleeve pipe 1, hot water delivery pipe road 10 and cooling water backflow
Pipeline 3, described one end of sleeve pipe 1 threadeds with the well head of geothermal well, and the other end is simultaneously connected with hot water delivery pipe road 10 and cold
But water reflux line 3, described sleeve pipe 1 is provided with effusion meter with the junction in hot water delivery pipe road 10 and cooling water reflux line 3,
Described sleeve pipe 1 is provided with flange type sluice valve 2, described hot water delivery pipe road 10 and cooling water reflux line 3 and is provided with ultrasound wave
Calorimeter 4, Pressure gauge 8 and several valves.The present invention, when outwards pumping heat, warm water from geothermal well, closes cooling water
Valve on reflux line 3, opens the valve on hot water delivery pipe road 10, and heat in geothermal well, that warm water is transported to hot water is defeated
Go out pipeline 10, and then be transported to industrial use, after the heat pumped in geothermal well, warm water are used cooling, need backflow
Time in geothermal well, close the valve on hot water delivery pipe road 10, open the valve on cooling water reflux line 3, cooling water from
Cooling water reflux line 3 flows in sleeve pipe 1, and then is sent in geothermal well.
Ultrasonic flowmeter selected by described effusion meter, and described ultrasonic calorimeter 4 selects Double-sound-track ultrasonic heat meter 4.
Ultrasonic flowmeter metering is more convenient, economical, accurate.
Valve on several described hot water delivery pipe roads 10 includes flange form butterfly valve 9, swing check valve 6 and flange form
Ball valve 5, the erection sequence of described Pressure gauge 8 and several described valves is: from the connection in hot water delivery pipe road 10 with effusion meter
The water side holding hot water delivery pipe road 10 is flange form butterfly valve 9, Pressure gauge 8, swing check valve 6 and flange type ball valve successively
5, the ultrasonic calorimeter 4 on described hot water delivery pipe road 10 between Pressure gauge 8 and swing check valve 6, this Pressure gauge 8
Installed with hot water delivery pipe road 10 by a three-way cock valve 7.Valve on hot water delivery pipe road 10 can accomplish sealing
Time complete sealing, three-way cock valve 7 is easy to water sampling from hot water delivery pipe road 10.
Valve on several described cooling water reflux lines 3 includes flange form butterfly valve 9 and flange type ball valve 5, described pressure
The erection sequence of power table 8 and several described valves is: from the water inlet end of cooling water reflux line 3 to cooling water reflux line 3
It is flange type ball valve 5, Pressure gauge 8 and flange form butterfly valve 9 successively with the connection end of effusion meter, on described cooling water reflux line 3
Ultrasonic calorimeter 4 between Pressure gauge 8 and flange form butterfly valve 9, this Pressure gauge 8 by a three-way cock valve 7 with
Cooling water reflux line 3 is installed.Cooling water reflux line 3 arranges multiple valve, when re-using hot water delivery pipe road 10, it is achieved complete
Full sealing cools down water reflux line 3 with sealing up, it is ensured that heat, the whole of warm water are carried by delivery pipeline, it is to avoid heat energy wave
Taking, Pressure gauge 8 can monitor the water pressure in cooling water reflux line 3.
Described cooling water reflux line 3 extends transversely through inflow-rate of water turbine meter, extends through the cooling water return duct of the effusion meter other end
The end in road 3 is provided with flange form butterfly valve 9.Elbow is not had, when cooling water return duct between cooling water reflux line 3 and effusion meter
When starting reflux cooling water in road 3, being difficult to turn in effusion meter in time, cooling water is flushed to extend through stream under inertia force effect
In the cooling water reflux line 3 of the gauge other end, then break-in under the turbulence and barrier effect of cooling water, flows in sleeve pipe 1,
The cooling water reflux line 3 extending through the effusion meter other end has the effect of buffering change cooling current direction, it is to avoid cooling water punching
Hit damage effusion meter or sleeve pipe 1, when also alleviating cooling water backflow, cooling water reflux line 3 and the vibration of sleeve pipe 1.
Several cables perforation 12 and several suspension ring 11 it are provided with, in described cable perforation 12 on described effusion meter
Footpath is φ 25mm, and described cable 12 inner peripheral surface of boring a hole are provided with screw thread, and equipped with Gask-O-Seal and blind plugging.It is arranged on
Immersible pump and the cable of the detection equipment of water below geothermal well are connected on ground be connected with power supply, and cable is through electricity
Wire through-hole 12, and be fixed in cable perforation 12 by Gask-O-Seal and blind plugging, prevent at Changes in weather (wind, rain
Deng), cause cable arbitrarily to swing, suspension ring 11 are also used for being fixedly mounted on the detection of immersible pump and water below geothermal well and set
Standby connecting line.
Described sleeve pipe 1 and flange type sluice valve 2 and effusion meter, flange form butterfly valve 9, swing check valve 6 and flange type ball valve 5
Flange joint, described Flange joint is all used with the junction in corresponding hot water delivery pipe road 10 or cooling water reflux line 3
Place all uses SW with outside ring to seal.SW with outside ring seal flexibility is big, can on-call maintenance and make up packing less feelings
Condition.
Described flange form butterfly valve 9 uses hard sealing, and flow resistance coefficient is not more than 0.2, can bidirectional bearing, and be provided with display its
The indicator of butterfly plate position, the surfaces externally and internally of described flange form butterfly valve 9, all through blasting treatment, all scribbles two-layer epoxy resin coating
Layer, the gross thickness of two-layer epoxy resin enamelled coating is more than 0.3mm.Flange form butterfly valve 9 good airproof performance, and little to the flow resistance coefficient of water,
Internal structure is the most perishable.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also includes
The technical scheme being made up of above technical characteristic combination in any.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Entirely can carry out various change and amendment in the range of without departing from this invention technological thought.The technology of this invention
The content that property scope is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. geothermal energy resources wellhead assembly, this wellhead assembly is installed on the well head of geothermal well, for being aspirated by the hot water in geothermal well
Coming up, the cooling water that the heat energy of this hot water is formed after being utilized is transported in geothermal well by this wellhead assembly, it is characterized in that bag
Including sleeve pipe, hot water delivery pipe road and cooling water reflux line, threadeds with the well head of geothermal well in one end of described sleeve pipe, another
End is simultaneously connected with hot water delivery pipe road and cooling water reflux line, described sleeve pipe and hot water delivery pipe road and cooling water reflux line
Junction be provided with effusion meter, described sleeve pipe is provided with flange type sluice valve, described hot water delivery pipe road and cooling water return duct
Road is provided with ultrasonic calorimeter, Pressure gauge and several valves.
Geothermal energy resources wellhead assembly the most according to claim 1, is characterized in that ultrasonic flowmeter selected by described effusion meter,
Described ultrasonic calorimeter selects Double-sound-track ultrasonic heat meter.
Geothermal energy resources wellhead assembly the most according to claim 1, is characterized in that on several described hot water delivery pipe roads
Valve includes the installation of flange form butterfly valve, swing check valve and flange type ball valve, described Pressure gauge and several described valves
Order is: from hot water delivery pipe road and effusion meter connect end to the water side in hot water delivery pipe road be successively flange form butterfly valve,
Pressure gauge, swing check valve and flange type ball valve, the ultrasonic calorimeter on described hot water delivery pipe road be positioned at Pressure gauge and
Between swing check valve, this Pressure gauge is installed with hot water delivery pipe road by a three-way cock valve.
Geothermal energy resources wellhead assembly the most according to claim 3, is characterized in that on several described cooling water reflux lines
Valve include that the erection sequence of flange form butterfly valve and flange type ball valve, described Pressure gauge and several described valves is: from cold
But the water inlet end of water reflux line to the connection end of cooling water reflux line and effusion meter be successively flange type ball valve, Pressure gauge and
Flange form butterfly valve, the ultrasonic calorimeter on described cooling water reflux line between Pressure gauge and flange form butterfly valve, this pressure
Power table is installed with cooling water reflux line by a three-way cock valve.
Geothermal energy resources wellhead assembly the most according to claim 1, is characterized in that described cooling water reflux line extends transversely through
Inflow-rate of water turbine meter, the end of the cooling water reflux line extending through the effusion meter other end is provided with flange form butterfly valve.
Geothermal energy resources wellhead assembly the most according to claim 1, is characterized in that being provided with several electricity on described effusion meter
Wire through-hole and several suspension ring, described cable punch inside diameter is φ 25mm, and described cable perforation inner peripheral surface is provided with
Screw thread, and equipped with Gask-O-Seal and blind plugging.
7., according to the geothermal energy resources wellhead assembly described in claim 4 or 5, it is characterized in that described sleeve pipe and flange type sluice valve and stream
Gauge, flange form butterfly valve, swing check valve and flange type ball valve and corresponding hot water delivery pipe road or cooling water return duct
The junction in road all uses Flange joint, described flange connections all to use SW with outside ring to seal.
Geothermal energy resources wellhead assembly the most according to claim 7, is characterized in that described flange form butterfly valve uses hard sealing, stream
Resistance coefficient is not more than 0.2, can bidirectional bearing, and be provided with the indicator showing its butterfly plate position, described flange form butterfly valve interior
Outer surface, all through blasting treatment, all scribbles two-layer epoxy resin enamelled coating, and the gross thickness of two-layer epoxy resin enamelled coating is more than 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776357.8A CN106225272A (en) | 2016-08-31 | 2016-08-31 | Geothermal energy resources wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776357.8A CN106225272A (en) | 2016-08-31 | 2016-08-31 | Geothermal energy resources wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106225272A true CN106225272A (en) | 2016-12-14 |
Family
ID=58072057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610776357.8A Pending CN106225272A (en) | 2016-08-31 | 2016-08-31 | Geothermal energy resources wellhead assembly |
Country Status (1)
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182832A (en) * | 2007-11-20 | 2008-05-21 | 西安交通大学 | A thermal airflow power generation system with complementary geothermal energy and solar energy |
| CN101349450A (en) * | 2008-06-27 | 2009-01-21 | 赵铭 | Deep layer terrestrial heat renewable energy source winter heating method |
| WO2012019249A2 (en) * | 2010-08-03 | 2012-02-16 | Ignatious Isaakidis | Isaakidis high temperature engineered geothermal systems (egs) |
| CN203053074U (en) * | 2013-01-15 | 2013-07-10 | 郑州大学综合设计研究院 | Closed recharge three-in-one device of deep layer geothermal well and water source heat pump well |
| CN203320611U (en) * | 2013-06-30 | 2013-12-04 | 陕西麦客科技发展有限责任公司 | Well mouth device of water source well |
| CN206037457U (en) * | 2016-08-31 | 2017-03-22 | 盐城市恒通石油机械制造有限公司 | Geothermal energy wellhead assembly |
-
2016
- 2016-08-31 CN CN201610776357.8A patent/CN106225272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182832A (en) * | 2007-11-20 | 2008-05-21 | 西安交通大学 | A thermal airflow power generation system with complementary geothermal energy and solar energy |
| CN101349450A (en) * | 2008-06-27 | 2009-01-21 | 赵铭 | Deep layer terrestrial heat renewable energy source winter heating method |
| WO2012019249A2 (en) * | 2010-08-03 | 2012-02-16 | Ignatious Isaakidis | Isaakidis high temperature engineered geothermal systems (egs) |
| CN203053074U (en) * | 2013-01-15 | 2013-07-10 | 郑州大学综合设计研究院 | Closed recharge three-in-one device of deep layer geothermal well and water source heat pump well |
| CN203320611U (en) * | 2013-06-30 | 2013-12-04 | 陕西麦客科技发展有限责任公司 | Well mouth device of water source well |
| CN206037457U (en) * | 2016-08-31 | 2017-03-22 | 盐城市恒通石油机械制造有限公司 | Geothermal energy wellhead assembly |
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Application publication date: 20161214 |
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