CN205090847U - Gravity heat pipe and heat transfer device that exploitation geothermol power was used - Google Patents
Gravity heat pipe and heat transfer device that exploitation geothermol power was used Download PDFInfo
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- CN205090847U CN205090847U CN201520469976.3U CN201520469976U CN205090847U CN 205090847 U CN205090847 U CN 205090847U CN 201520469976 U CN201520469976 U CN 201520469976U CN 205090847 U CN205090847 U CN 205090847U
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Abstract
The utility model provides a gravity heat pipe and heat transfer device that exploitation geothermol power was used, gravity heat pipe include the body, and this body is equipped with evaporation zone and adiabatic segment, its characterized in that still includes the condensate downtake, sets up in this body, and is located this evaporation zone and adiabatic segment. Heat transfer device includes: the gravity heat pipe that above -mentioned exploitation geothermol power was used, the heat exchanger, it is continuous with the body among this gravity heat pipe, the liquid storage pot, it is continuous with the condensate downtake among this heat exchanger and this gravity heat pipe. The utility model provides a gravity heat pipe that exploitation geothermol power was used lies in making the saturated liquid after the condensation can flow in the evaporation zone smoothly through set up the condensation descending branch in gravity heat pipe with conventional gravity heat pipe's crucial difference, combines modes such as flow control valve, nozzle, fin to improve gravity heat pipe heat transfer performance through setting up the liquid storage pot simultaneously.
Description
Technical field
The utility model relates to and utilizes hot pipe technique to exploit underground heat and technical field of waste heat utilization, particularly relates to a kind of gravity assisted heat pipe and the heat-exchanger rig of exploiting underground heat.
Background technology
Heat pipe is a kind of heat exchange element being realized efficient heat transfer by phase-change circulation of working medium flowing.Working medium is in bringing-up section heat absorption vaporization, and release heat to heat release section condensation, under capillary force or Action of Gravity Field, be back to bringing-up section again absorb heat, this process moves in circles, thus heat is delivered to the other end from one end.Heat pipe because of compact conformation, heat-transfer character excellent, and be widely used in the every field such as HVAC building, petrochemical industry, metallurgical machinery, Electronic cooling, productive life without the need to exterior power.In the last few years, along with the enhancing of energy-conserving and environment-protective consciousness, hot pipe technique had day by day wide application prospect in waste heat recovery and new energy technology development.
Heat pipe is mainly divided into standard heat pipe and gravity assisted heat pipe.The two is compared, and gravity assisted heat pipe does not have liquid-sucking core, and simple dependence Action of Gravity Field realizes the heat transfer between Cooling and Heat Source, and thus structure is simple, easily manufactured, with low cost, is widely used in waste heat recovery field.
Along with fossil energy is day by day deficient, increasing environmental pollution, the high-efficiency environment friendly exploitation of geothermal energy resources more and more comes into one's own.If application of weight heat pipe exploitation geothermal energy resources, effectively can alleviate current exploitation pattern to take out-initial cost that filling formula is brought is high, recharge the unfavorable problem such as environmental pollution, formation subsidence caused.
The required gravity assisted heat pipe length of geothermal energy resources exploitation at least tens meters go up km at most, Conventional gravity heat pipe has the following disadvantages in such very long range, one is that the condensate film that flows downward is prevented from backflow because of the effect being subject at a high speed upwards flowing steam shearing force, and there is entrainment limit, limit heat output, two is that heat pipe is long, condensate film is difficult to keep uniform state at tube wall, this just easily causes that dry-out appears in evaporator section part liquid film region and some region liquid film is blocked up, affect heat-transfer effect, three is that the heat transfer property impact of filling quantity on gravity assisted heat pipe is remarkable, but because GEOTHERMAL WATER and gravity assisted heat pipe are heat transfer free convection, heat exchange situation can change along with geothermal energy resources situation and heat exchange situation, therefore the filling quantity be applicable to is change, but because gravity assisted heat pipe is closed, be difficult to revise filling quantity, optimize diabatic process.Four are evaporator sections of gravity assisted heat pipe is that GEOTHERMAL WATER carries out heat transfer free convection with it, compared with phase transformation evaporation and heat-exchange in evaporator section, heat exchange thermal resistance is obviously in GEOTHERMAL WATER side, thus for improving heat-pipe working medium in the heat exchange amount of evaporator section, the feature of unified with nature heat convection fin should be installed additional in heat pipe evaporator section GEOTHERMAL WATER side.Consider exploitation geothermal drilling limited diameter, this just needs in the confined space, strengthen heat pipe and geothermal energy resources heat exchange amount.
Utility model content
Feature and advantage of the present utility model are partly stated in the following description, or can be apparent from this description, or learn by putting into practice the utility model.
For overcoming the problem of prior art, the utility model provides a kind of gravity assisted heat pipe and the heat-exchanger rig of exploiting underground heat, in limited heat pipe diameter range, in the inner evaporator section of gravity assisted heat pipe and adiabatic section, independent condensate liquid descending branch is set, condensate film is made affected by the shearing force of upwards steam, can steady flow, effectively avoid entrainment limit, significantly increase adopting heat pipes for heat transfer amount.
It is as follows that the utility model solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present utility model, provide a kind of gravity assisted heat pipe exploiting underground heat, comprise body, this body is provided with evaporator section and adiabatic section; It is characterized in that, also comprise condensate descending, be arranged in this body, and be positioned at this evaporator section and adiabatic section.
At least one nozzle is equipped with according to an embodiment of the present utility model, this condensate descending being positioned at this evaporator section.
According to an embodiment of the present utility model, this nozzle is arranged on the sidewall of this condensate descending being positioned at this evaporator section.
According to an embodiment of the present utility model, wherein one end of this condensate descending is link, and this link passes the outer wall of this body and stretches out, for connecting fluid reservoir.
According to an embodiment of the present utility model, also comprise flow control valve, be positioned on the link of this condensate descending.
According to an embodiment of the present utility model, also comprise fin, outside the evaporator section being arranged on this body.
According to another aspect of the present utility model, a kind of heat-exchanger rig exploiting underground heat is provided, it is characterized in that, comprising: the gravity assisted heat pipe of above-mentioned arbitrary exploitation underground heat; Heat exchanger, is connected with the body in this gravity assisted heat pipe; Fluid reservoir, is connected with the condensate descending in this heat exchanger and this gravity assisted heat pipe.
By reading description, those of ordinary skill in the art will understand the characteristic sum content of these technical schemes better.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the utility model particularly in conjunction with example, advantage of the present utility model and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation explanation of the present utility model, and do not form restriction of going up in all senses of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of the heat-exchanger rig of the exploitation underground heat of the utility model embodiment.
Detailed description of the invention
As shown in Figure 1, the utility model provides a kind of gravity assisted heat pipe exploiting underground heat, comprises body 10, and body 10 is provided with evaporator section 1 and adiabatic section 2; It is characterized in that, also comprise condensate descending 3, be arranged in body 10, and be positioned at evaporator section 1 and adiabatic section 2, this condensate descending 3 is with upwards working substance steam is discontiguous.Wherein, evaporator section 1 is positioned at the below of adiabatic section 2, and when reality uses, evaporator section 1 is arranged in water table, and adiabatic section 2 is in underground layer, and the body portion of adiabatic section more than 2 then rest on the ground.
In the present embodiment, the condensate descending 3 being positioned at evaporator section 1 is equipped with at least one nozzle 7, this nozzle 7 can be arranged on the sidewall of the condensate descending being positioned at evaporator section, condensed saturated liquid working medium can be enable fully to spray evaporator section liquid film district, reenter evaporator section heat absorption vaporization, complete a diabatic process.Improving heat exchange amount to increase GEOTHERMAL WATER heat exchange area, also comprising fin 8, outside the evaporator section being arranged on body 10, this fin 8 can be arranged to downward-sloping shape.
Wherein one end of condensate descending 3 is link 31, and this link 31 passes the outer wall of body 10 and stretches out, and for connecting fluid reservoir 5, specifically, this link 31 passes from the body portion of body 10 adiabatic section more than 2.In the present embodiment, the link 31 of condensate descending is provided with flow control valve 6, is used for regulating condensate liquid capacity of returns, thus the heat-pipe working medium flow of effectively control and participate in heat exchange, optimize adopting heat pipes for heat transfer characteristic.
Referring again to Fig. 1, the utility model also provides a kind of heat-exchanger rig exploiting underground heat, comprising: the gravity assisted heat pipe of above-mentioned exploitation underground heat; Heat exchanger 4, is connected with the body 10 in gravity assisted heat pipe, and adiabatic section 2 is closed at its position be connected with body 10, is used for condensation working medium to cooling water heat release; Fluid reservoir 5, is connected with the condensate descending 3 in heat exchanger 4 and gravity assisted heat pipe, in order to regulate working medium flow and operating pressure.Preferably, flow control valve 6 is set between condensate descending 3 and fluid reservoir 5, is used for better regulating condensate liquid capacity of returns, thus the heat-pipe working medium flow of effectively control and participate in heat exchange, optimize adopting heat pipes for heat transfer characteristic.
The gravity assisted heat pipe of exploitation underground heat that the utility model provides and the operation principle of heat-exchanger rig and process as follows:
What in gravity assisted heat pipe, liquid working substance contacted with GEOTHERMAL WATER reservoir in underground is divided into working medium liquid film district and liquid pool district with outer fin evaporator section 1, the heat of the liquid working substance absorption GEOTHERMAL WATER in two regions completes vaporescence, working substance steam high velocity stream is behind the adiabatic section 2 from GEOTHERMAL WATER reservoir to ground, enter ground heat exchanger 4 and complete condensation exothermic process to heating water return heat release, steam-condensation enters fluid reservoir 5 and carries out gas-liquid separation further after becoming saturated liquid, to go forward side by side inbound traffics control valve 6, flow to condensate descending 3 under gravity, condensate descending 3 is provided with nozzle 7 at evaporator section, condensed saturated liquid working medium is enable fully to spray evaporator section liquid film district, reenter evaporator section heat absorption vaporization, complete one by heat pipe from GEOTHERMAL WATER heat absorption to the diabatic process of heat supply backwater heat release.
The gravity assisted heat pipe of the exploitation underground heat that the utility model provides and the key difference of conventional articulated gravity heat pipe are to make condensed saturated liquid can flow into evaporator section smoothly by arranging condensation descending branch in gravity assisted heat pipe, improve gravity assisted heat pipe heat transfer property by arranging fluid reservoir in conjunction with modes such as flow control valve, nozzle, fins simultaneously.
The gravity assisted heat pipe of the exploitation underground heat that the utility model provides and heat-exchanger rig can be used for tens meters to up to a hundred meters gravity assisted heat pipe environmental protection, high-efficiency mining terrestrial heat resources ,-the pattern of recharge and exploitation terrestrial heat resources of traditional drawing water to substitute.If in conjunction with the field experiment continued and optimal design, improve device economy, will greatly improve sustainable development, the available protecting groundwater resources of geothermal energy resources exploitation, there is huge economy, environmental protection and social benefit.
Above with reference to the accompanying drawings of preferred embodiment of the present utility model, those skilled in the art do not depart from scope of the present utility model and essence, and multiple flexible program can be had to realize the utility model.For example, to illustrate as the part of an embodiment or the feature that describes can be used for another embodiment to obtain another embodiment.These are only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model that the equivalence change that all utilization the utility model descriptions and accompanying drawing content are done all is contained within interest field of the present utility model.
Claims (7)
1. exploit a gravity assisted heat pipe for underground heat, comprise body, described body is provided with evaporator section and adiabatic section; It is characterized in that, also comprise condensate descending, be arranged in described body, and be positioned at described evaporator section and adiabatic section.
2. exploit the gravity assisted heat pipe of underground heat according to claim 1, it is characterized in that, the described condensate descending being positioned at described evaporator section is equipped with at least one nozzle.
3. exploit the gravity assisted heat pipe of underground heat according to claim 2, it is characterized in that, described nozzle is arranged on the sidewall of the described condensate descending being positioned at described evaporator section.
4. exploit the gravity assisted heat pipe of underground heat according to claim 1, it is characterized in that, wherein one end of described condensate descending is link, and described link passes the outer wall of described body and stretches out, for connecting fluid reservoir.
5. exploit the gravity assisted heat pipe of underground heat according to claim 4, it is characterized in that, also comprise flow control valve, be positioned on the link of described condensate descending.
6. exploit the gravity assisted heat pipe of underground heat according to claim 1, it is characterized in that, also comprise fin, outside the evaporator section being arranged on described body.
7. exploit a heat-exchanger rig for underground heat, it is characterized in that, comprising:
The gravity assisted heat pipe of underground heat is exploited as described in as arbitrary in claim 1 to 6;
Heat exchanger, is connected with the body in described gravity assisted heat pipe;
Fluid reservoir, is connected with the condensate descending in described heat exchanger and described gravity assisted heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520469976.3U CN205090847U (en) | 2015-07-02 | 2015-07-02 | Gravity heat pipe and heat transfer device that exploitation geothermol power was used |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520469976.3U CN205090847U (en) | 2015-07-02 | 2015-07-02 | Gravity heat pipe and heat transfer device that exploitation geothermol power was used |
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| CN205090847U true CN205090847U (en) | 2016-03-16 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705201A (en) * | 2017-03-27 | 2017-05-24 | 天津城建大学 | Underground gravity heat pipe direct heating device |
| CN106839071A (en) * | 2017-03-27 | 2017-06-13 | 天津城建大学 | The buried direct wallboard radiant heating system of gravity assisted heat pipe |
| 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 |
| CN107975953A (en) * | 2017-12-01 | 2018-05-01 | 西安交通大学 | Wing heat exchange structure and stepped utilization method in one kind extraction dry-hot-rock geothermal energy |
| CN108344317A (en) * | 2018-02-08 | 2018-07-31 | 西南石油大学 | A kind of overlength gravity assisted heat pipe geothermal exploitation system assisted using peltier effect |
| CN110030746A (en) * | 2019-04-23 | 2019-07-19 | 中国科学院广州能源研究所 | Staged gravity assisted heat pipe underground heat mining system without hydrops effect |
| WO2022022750A1 (en) * | 2020-09-15 | 2022-02-03 | 中国科学院广州能源研究所 | Heat pump system and method for achieving efficient evaporation using geothermal well |
| CN115790219A (en) * | 2022-11-22 | 2023-03-14 | 山东大学 | Ultra-long gravity heat pipe device for extracting geothermal energy in waste oil-gas well |
-
2015
- 2015-07-02 CN CN201520469976.3U patent/CN205090847U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705201A (en) * | 2017-03-27 | 2017-05-24 | 天津城建大学 | Underground gravity heat pipe direct heating device |
| CN106839071A (en) * | 2017-03-27 | 2017-06-13 | 天津城建大学 | The buried direct wallboard radiant heating system of gravity assisted heat pipe |
| 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 |
| CN107144035B (en) * | 2017-05-16 | 2019-06-28 | 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 |
| CN107975953A (en) * | 2017-12-01 | 2018-05-01 | 西安交通大学 | Wing heat exchange structure and stepped utilization method in one kind extraction dry-hot-rock geothermal energy |
| CN107975953B (en) * | 2017-12-01 | 2023-09-08 | 西安交通大学 | Heat exchange structure for extracting geothermal energy of dry-heated rock and inner fin and cascade utilization method |
| CN108344317A (en) * | 2018-02-08 | 2018-07-31 | 西南石油大学 | A kind of overlength gravity assisted heat pipe geothermal exploitation system assisted using peltier effect |
| CN110030746A (en) * | 2019-04-23 | 2019-07-19 | 中国科学院广州能源研究所 | Staged gravity assisted heat pipe underground heat mining system without hydrops effect |
| US11408646B2 (en) | 2019-04-23 | 2022-08-09 | Guangzhou Institute Of Energy Conversion, Chinese Academy Of Sciences | Ladder-structural gravity-assisted-heat-pipe geothermal energy recovery system without liquid-accumulation effect |
| WO2022022750A1 (en) * | 2020-09-15 | 2022-02-03 | 中国科学院广州能源研究所 | Heat pump system and method for achieving efficient evaporation using geothermal well |
| CN115790219A (en) * | 2022-11-22 | 2023-03-14 | 山东大学 | Ultra-long gravity heat pipe device for extracting geothermal energy in waste oil-gas well |
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