CN108050717A - Heat pipe-type hot dry rock high-efficiency heat exchanger - Google Patents
Heat pipe-type hot dry rock high-efficiency heat exchanger Download PDFInfo
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- CN108050717A CN108050717A CN201711303488.5A CN201711303488A CN108050717A CN 108050717 A CN108050717 A CN 108050717A CN 201711303488 A CN201711303488 A CN 201711303488A CN 108050717 A CN108050717 A CN 108050717A
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- pipe
- heat conducting
- heat
- conducting pipe
- infusion
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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
Abstract
Heat pipe-type hot dry rock high-efficiency heat exchanger belongs to hot dry rock technical field of heat exchange, solves the technical issues of hot dry rock heat-exchange system heat exchange efficiency is low, solution is：Heat conducting pipe of infusing includes wide opening section and slot section, infusion heat conducting pipe top and bottom is disposed as open end, end socket is arranged at wide opening section lower face, diversity water seal head is arranged on the top of slot section, feed pipe and return pipe are arranged on diversity water seal head, feed pipe is connected with infusion heat conducting pipe tube chamber, and return pipe is connected with instlated tubular tube chamber；Wide opening section outer wall lower part is equipped with helical fin, slot section outer wall top is enclosed with insulating layer, infusion heat conducting pipe center portion is provided with instlated tubular, wide opening pars infrasegmentalis is connected with instlated tubular lower part, helical flow path is provided between wide opening section inner wall and heat-insulated pipe outer wall, the tube chamber volume for heat conducting pipe of infusing is 2 ~ 4 times of the tube chamber volume of instlated tubular.Helical fin increases heat exchange area with helical flow path, and insulating layer reduces thermal diffusion with instlated tubular, improves hot dry rock heat-exchange system heat exchange efficiency.
Description
Technical field
The invention belongs to hot dry rock technical field of heat exchange, and in particular to heat pipe-type hot dry rock high-efficiency heat exchanger.
Background technology
Hot dry rock is a kind of clean renewable geothermal energy resources, in past 40 years, the utilization technology of hot dry rock increasingly into
It is ripe, show huge utility value.China's land area vast area and it is located in three macroplate intersections, has good xeothermic
Rock preservation background.To China's land area terrestrial heat flow, different depth thermal conductivity of rocks, rock heat generation and radioactive element collection
On the basis of the Thickness Analysis in middle level, using the method extrapolated according to shallow temperature measuring data to crust deep part, to land area of China not
It is estimated with depth temperature, the hot dry rock of land area of China 3.0~10.0km depths is provided using volumetric method on this basis
Source amount is estimated, the results show that 3.0~10.0km of China mainland depths hot dry rock resource adds up to 2.5 × 1025J, phase
When in 860,000,000,000,000 tons of standard coals, being calculated by 2% Allowable exploitation quantity, be equivalent to the 5200 of the current energy consumption total amount in China
Times, wherein between the .5km of 3 .5 of depth~7, temperature is huge between 150 DEG C to 250 DEG C of hot dry rock reserves, about 6 .3
× 106EJ is calculated by 2% workable reserves, will also be obtained the thermal energy of 126000EJ, be equivalent to China's energy-consuming in 2010
1320 times of total amount, exploitation prospect is huge, and the renewable geothermal energy resources of hot dry rock are exploited there is an urgent need for a kind of equipment.So
And existing hot dry rock heat exchanger system heat exchange efficiency is low, causes the waste of geothermal energy resources.
The content of the invention
In order to overcome the shortcomings of the prior art, it is low to solve hot dry rock heat exchanger system heat exchange efficiency in the prior art
Technical problem, the present invention provide heat pipe-type hot dry rock high-efficiency heat exchanger.
The present invention is achieved by the following technical programs：
Heat pipe-type hot dry rock high-efficiency heat exchanger, it include end socket, infusion heat conducting pipe, instlated tubular, diversity water seal head, feed pipe and
Return pipe, the hot water in the feed pipe are flowed back through external heating body after heat by return pipe, wherein：The infusion heat conducting pipe
It is arranged in the drilling drilled out vertically downward on ground by drilling machine, the top and bottom for heat conducting pipe of infusing is disposed as opening
End, infusion heat conducting pipe lower part tube chamber are arranged to wide opening section, and infusion heat conducting pipe top tube chamber is arranged to slot section, wide opening section and slot
By being connected with tapered transitional pipe segment transition between section, end socket is arranged at the lower face of infusion heat conducting pipe wide opening section；It is defeated
Helical fin is provided on liquid heat conducting pipe wide opening section outer wall, insulating layer is enclosed on heat conducting pipe slot section outer wall of infusing；Infusion is led
The center portion of heat pipe is provided with instlated tubular, and screen casing is provided between end socket below instlated tubular, and screen casing side wall is provided with sieve pore, infusion
The lower part of heat conducting pipe is connected with the lower part of instlated tubular by screen casing, is infused between heat conducting pipe wide opening section inner wall and the outer wall of instlated tubular
Helical flow path is provided with, the tube chamber volume for heat conducting pipe of infusing is 2 ~ 4 times of the tube chamber volume of instlated tubular；The diversity water seal head can
The top of infusion heat conducting pipe is releasably arranged at, the feed pipe and return pipe be arranged on diversity water seal head, feed pipe and is returned
Pump is respectively arranged on water pipe, feed pipe extends to the top of infusion heat conducting pipe tube chamber, and return pipe extends to instlated tubular tube chamber
Top.
Further, the drilling is arranged to drill out the drilling of diameter 300mm vertically downward on ground by drilling machine, described
Infusion heat conducting pipe is arranged to infusion heat conducting pipe more than length 2000m.
Further, the infusion heat conducting pipe includes multistage steel pipe, adjacent steel-pipe welding or threaded connection.
Further, the feed pipe and return pipe are welded or are threaded on diversity water seal head.
Further, the tube chamber volume of the infusion heat conducting pipe wide opening section is the tube chamber volume of infusion heat conducting pipe slot section
2 times.
Compared with prior art the invention has the advantages that：
1）, heat transfer coefficient it is high, infusion heat conducting pipe wide opening section outer wall is equipped with helical fin, and infusion heat conducting pipe wide opening intersegmental part is provided with
Helical flow path by heat transfer, increases heat exchange area, increases heat-exchange time, strengthens exchange capability of heat.
2）, transfer that heat is big, and in the case where gas-gas exchanges heat, instlated tubular is optimal, heat transfer coefficient is 10 times of light pipe,
6 times or more of finned tube.
3）, good heat insulating, the diabatic process in heat pipe, due to being phase transition process, along with working fluid in pipe
Purity is very high, and therefore, the temperature of heat pipe inner vapor is substantially constant temperature.On infusion heat conducting pipe slot section outer wall top, package is protected
Warm layer reduces high-temp liquid and extraneous heat exchange, reduces the thermal losses in transmission process, improve the heat exchange of heat-exchange system
Rate.
4）, it is safe and reliable.Aperture is small（200 millimeters）, depth has no effect to building lot below 2000 meters, ground
Lower movement-less part；Utilize underground high temperature heat source heat supply, lasting stability.
5）, simple structure, without motion part.It is easy to operate convenient for manufacturing, installing, Operation and maintenance, it is easy to clean.
6）, reasonable in economy, maintenance cost is low.Structure is safe and reliable, compact, reliable operation, light-weight, floor space
It is small, it is easy for installation, it is easy to construct, investment reduction.
7）, application conditions it is extensive, be applicable in larger ground pressure, temperature range（Within 500 DEG C）It is handed over various geo-logical terrains heat
It changes, is generally applicable in.It is flexible that the selected comparison of heat exchanger position is installed, is generally restricted from site condition.
Description of the drawings
Fig. 1 is overall structure schematic cross-sectional view of the present invention, and hollow arrow is cryogenic liquid flowing direction in figure, filled arrows
For the high-temp liquid flow direction after heat exchange.
In figure, 1 is end socket, and 2 be helical fin, and 3 be infusion heat conducting pipe, and 4 be helical flow path, and 5 be insulating layer, and 6 be heat-insulated
Pipe, 7 be diversity water seal head, and 8 be return pipe, and 9 be feed pipe, and 10 be screen casing.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Heat pipe-type hot dry rock high-efficiency heat exchanger as shown in Figure 1, it include end socket 1, infusion heat conducting pipe 3, instlated tubular 6,
Diversity water seal head 7, feed pipe 8 and return pipe 9, the hot water in the feed pipe 8 pass through return pipe 9 after external heating body heat
Reflux, wherein：The infusion heat conducting pipe 3 is arranged in the drilling drilled out vertically downward on ground by drilling machine, heat conducting pipe 3 of infusing
Top and bottom be disposed as open end, infusion 3 lower part tube chamber of heat conducting pipe is arranged to wide opening section, 3 upper tube of heat conducting pipe of infusing
Chamber is arranged to slot section, and by being connected with tapered transitional pipe segment transition between wide opening section and slot section, end socket 1 is arranged at defeated
At the lower face of 3 wide opening section of liquid heat conducting pipe；Helical fin 2 is provided on infusion 3 wide opening section outer wall of heat conducting pipe, heat conducting pipe 3 of infusing
Insulating layer 5 is enclosed on slot section outer wall；The center portion of infusion heat conducting pipe 3 is provided with instlated tubular 6, instlated tubular 6 lower section and end socket 1 it
Between be provided with screen casing 10,10 side wall of screen casing is provided with sieve pore, and the lower part of heat conducting pipe 3 of infusing passes through screen casing with the lower part of instlated tubular 6
Connection infuses and helical flow path 4 is provided between 3 wide opening section inner wall of heat conducting pipe and the outer wall of instlated tubular 6, the pipe for heat conducting pipe 3 of infusing
Chamber volume is 2 ~ 4 times of the tube chamber volume of instlated tubular 6；The diversity water seal head 7 is removable installed in the top of infusion heat conducting pipe 3
End, the feed pipe 8 and return pipe 9 are arranged on diversity water seal head 7, and pump is respectively arranged on feed pipe 8 and return pipe 9, are supplied
Water pipe 8 extends to the top of infusion 3 tube chamber of heat conducting pipe, and return pipe 9 extends to the top of 6 tube chamber of instlated tubular.
Further, the drilling is arranged to drill out the drilling of diameter 300mm vertically downward on ground by drilling machine, described
Infusion heat conducting pipe 3 is arranged to infusion heat conducting pipe 3 more than length 2000m.
Further, the infusion heat conducting pipe 3 includes multistage steel pipe, adjacent steel-pipe welding or threaded connection.
Further, the feed pipe 8 and return pipe 9 are welded or are threaded on diversity water seal head 7.
Further, the tube chamber volume of the infusion 3 wide opening section of heat conducting pipe is the tube chamber volume of infusion 3 slot section of heat conducting pipe
2 times.
The use process of the present invention is as follows：
According to the geothermal energy reserve status of detection, drilling well and by present apparatus assembling and setting, water injection test meets requirement.
In use, the high-temp liquid in feed pipe 8 is back to instlated tubular 6 after external heating body heat release by return pipe 9
Tube chamber in, wherein the tube chamber volume of infusion heat conducting pipe 3 is 4 times of tube chamber volume of instlated tubular 6, liquid in 6 tube chamber of instlated tubular
Weight and liquid in infusion 3 tube chamber of heat conducting pipe weight there are weight difference, slow down the flow velocity of low temperature reflux liquid, heat conducting pipe of infusing
The helical flow path 4 set between 3 wide opening section inner walls and the outer wall of instlated tubular 6 equally slows down the flow velocity of low temperature reflux liquid, makes low
The helical fin 2 that warm phegma is set with 3 wide opening section outer wall of infusion heat conducting pipe fully exchanges heat.Low temperature reflux liquid after heat exchange becomes
It carries the high-temperature heat supply water of higher temperature or even is vaporized into high-temperature vapor, high-temperature heat supply water passes through 3 slot of heat conducting pipe of infusing
Section is quickly pumped to external heating body through feed pipe 8 and uses, and so cycles.In this heat transfer process, 3 slot section of heat conducting pipe of infusing
The instlated tubular 6 set in the insulating layer 5 and infusion heat conducting pipe 3 that outer wall top is set can effectively reduce high-temperature heat supply water after heat exchange
Thermal diffusion, avoid causing the loss of temperature during high-temp liquid transmits.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
It is familiar with those skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in should all be contained
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (5)
1. heat pipe-type hot dry rock high-efficiency heat exchanger, it includes end socket（1）, infusion heat conducting pipe（3）, instlated tubular（6）, diversity water seal
Head（7）, feed pipe（8）And return pipe（9）, the feed pipe（8）In hot water through external heating body heat after pass through return pipe
（9）Reflux, it is characterised in that：The infusion heat conducting pipe（3）It is arranged in the drilling drilled out vertically downward on ground by drilling machine,
Infusion heat conducting pipe（3）Top and bottom be disposed as open end, heat conducting pipe of infusing（3）Lower part tube chamber is arranged to wide opening section, defeated
Liquid heat conducting pipe（3）Top tube chamber is arranged to slot section, by with tapered transitional pipe segment transition between wide opening section and slot section
Connection, end socket（1）It is arranged at infusion heat conducting pipe（3）At the lower face of wide opening section；Infusion heat conducting pipe（3）It is set on wide opening section outer wall
There is helical fin（2）, heat conducting pipe of infusing（3）Insulating layer is enclosed on slot section outer wall（5）；Infusion heat conducting pipe（3）Center portion set
It is equipped with instlated tubular（6）, instlated tubular（6）Lower section and end socket（1）Between be provided with screen casing（10）, screen casing（10）Side wall is provided with sieve
Hole, heat conducting pipe of infusing（3）Lower part and instlated tubular（6）Lower part connected by screen casing, infuse heat conducting pipe（3）Wide opening section inner wall with
Instlated tubular（6）Outer wall between be provided with helical flow path（4）, heat conducting pipe of infusing（3）Tube chamber volume be instlated tubular（6）Tube chamber
2 ~ 4 times of volume；The diversity water seal head（7）It is removable installed in infusion heat conducting pipe（3）Top, the feed pipe（8）
And return pipe（9）It is arranged at diversity water seal head（7）On, feed pipe（8）And return pipe（9）On be respectively arranged with pump, feed pipe（8）
Extend to infusion heat conducting pipe（3）The top of tube chamber, return pipe（9）Extend to instlated tubular（6）The top of tube chamber.
2. heat pipe-type hot dry rock high-efficiency heat exchanger according to claim 1, it is characterised in that：The drilling is arranged to logical
It crosses drilling machine and drills out the drilling of diameter 300mm, the infusion heat conducting pipe vertically downward on ground（3）It is arranged to more than length 2000m
Infusion heat conducting pipe（3）.
3. heat pipe-type hot dry rock high-efficiency heat exchanger according to claim 1, it is characterised in that：The infusion heat conducting pipe
（3）Including multistage steel pipe, adjacent steel-pipe welding or threaded connection.
4. heat pipe-type hot dry rock high-efficiency heat exchanger according to claim 1, it is characterised in that：The feed pipe（8）
And return pipe（9）Weld or be threaded in diversity water seal head（7）On.
5. heat pipe-type hot dry rock high-efficiency heat exchanger according to claim 1, it is characterised in that：The infusion heat conducting pipe
（3）The tube chamber volume of wide opening section is infusion heat conducting pipe（3）2 times of the tube chamber volume of slot section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303488.5A CN108050717A (en) | 2017-12-11 | 2017-12-11 | Heat pipe-type hot dry rock high-efficiency heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711303488.5A CN108050717A (en) | 2017-12-11 | 2017-12-11 | Heat pipe-type hot dry rock high-efficiency heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050717A true CN108050717A (en) | 2018-05-18 |
Family
ID=62123993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711303488.5A Pending CN108050717A (en) | 2017-12-11 | 2017-12-11 | Heat pipe-type hot dry rock high-efficiency heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050717A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3018677A1 (en) * | 2009-11-05 | 2011-05-05 | Tai-Her Yang | Vertical fluid heat exchanger installed within natural thermal energy body |
| CN203731726U (en) * | 2013-12-18 | 2014-07-23 | 徐生恒 | Energy storage tank-type earth energy collecting device and air conditioner system with energy storage tank-type earth energy collecting device |
| CN105674608A (en) * | 2016-02-17 | 2016-06-15 | 姚国敏 | Device and method for extracting and utilizing geothermal energy |
| CN205878666U (en) * | 2016-08-16 | 2017-01-11 | 郑州沃德空调有限公司 | Bury stake of formula heat transfer energy |
| CN107131779A (en) * | 2017-07-31 | 2017-09-05 | 安徽新富地能源科技有限公司 | A kind of ground temperature energy heat exchanger and its installation method |
| CN107144035A (en) * | 2017-05-16 | 2017-09-08 | 中国科学院广州能源研究所 | A kind of regulatable loop heat pipe formula underground heat mining system of working medium circulation flow |
| CN207797439U (en) * | 2017-12-11 | 2018-08-31 | 王盛昌 | A kind of heat pipe-type hot dry rock high-efficiency heat exchanger |
-
2017
- 2017-12-11 CN CN201711303488.5A patent/CN108050717A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3018677A1 (en) * | 2009-11-05 | 2011-05-05 | Tai-Her Yang | Vertical fluid heat exchanger installed within natural thermal energy body |
| CN203731726U (en) * | 2013-12-18 | 2014-07-23 | 徐生恒 | Energy storage tank-type earth energy collecting device and air conditioner system with energy storage tank-type earth energy collecting device |
| CN105674608A (en) * | 2016-02-17 | 2016-06-15 | 姚国敏 | Device and method for extracting and utilizing geothermal energy |
| CN205878666U (en) * | 2016-08-16 | 2017-01-11 | 郑州沃德空调有限公司 | Bury stake of formula heat transfer energy |
| CN107144035A (en) * | 2017-05-16 | 2017-09-08 | 中国科学院广州能源研究所 | A kind of regulatable loop heat pipe formula underground heat mining system of working medium circulation flow |
| CN107131779A (en) * | 2017-07-31 | 2017-09-05 | 安徽新富地能源科技有限公司 | A kind of ground temperature energy heat exchanger and its installation method |
| CN207797439U (en) * | 2017-12-11 | 2018-08-31 | 王盛昌 | A kind of heat pipe-type hot dry rock high-efficiency heat exchanger |
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