CN201953588U - System utilizing fluorocarbon to extract geothermal energy from underground - Google Patents
System utilizing fluorocarbon to extract geothermal energy from underground Download PDFInfo
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- CN201953588U CN201953588U CN2011200051113U CN201120005111U CN201953588U CN 201953588 U CN201953588 U CN 201953588U CN 2011200051113 U CN2011200051113 U CN 2011200051113U CN 201120005111 U CN201120005111 U CN 201120005111U CN 201953588 U CN201953588 U CN 201953588U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
A system utilizing fluorocarbon to extract geothermal energy from underground mainly comprises a circulating heat pipe (1), a heat exchanger (2), a circulating pump (3), a working unit (4), a shell-and-tube condenser (5), a condenser booster pump (6), a cooling tower (7), a cooling tower booster pump (8) and a water supplementing booster pump (9). The system is characterized in that the upper half segment of the circulating heat pipe (1) is placed in a casing of the heat exchanger (2), one end of the circulating pump (3) is connected with the heat exchanger (2), the other end of the circulating pump (3) is connected with the working unit (4), the upper end of a heat portion of the shell-and-tube condenser (5) is connected with the working unit (4), one end of the condenser booster pump (6) is connected with the lower end of the heat portion of the shell-and-tube condenser (5), the other end of the condenser booster pump (6) is connected with the heat exchanger (2), the upper end of a cold portion of the shell-and-tube condenser (5) is connected with the bottom of the cooling tower (7) by the aid of the cooling tower booster pump (8), the lower end of the cold portion of the shell-and-tube condenser (5) is connected with the top of the cooling tower (7), and one end of the water supplementing booster pump (9) is connected with the cooling tower (7), so that design purposes are achieved.
Description
Technical field
The utility model relates to a kind of system that utilizes the underground extraction geothermal power of fluorocarbon, especially a kind of system that is used for utilizing under the heat-obtaining form of not fetching water the underground extraction geothermal power of fluorocarbon.
Background technique
Though people recognize that very early geothermal power belongs to renewable energy sources, be a kind of alternative energy resources of fossil energy, also be catchment, the ore deposit, heat be the novel energy of one, very low always to the Application and Development degree of geothermal energy resources.Along with the continuous exploitation and the exhaustion of fossil energy, and people are to the improving constantly of environmental protection requirement, as a kind of environmental protection, and the energy cheaply, the exploitation and utilization of geotherm resources technology has obtained considerable progress.But the exploitation of geothermal power has its own particularity, at first, the extreme inequality of distribution of resource, in China, be easy to exploitation and costly high-temperature geothermal resource and nearly all concentrated on Zang Nan, the western regions of the Yunnan Province, Chuan Xi, problems such as and the middle low-temperature geothermal resource that distribution is all arranged in each area, the whole nation is because the cost of winning height, and difficulty is big can not get good utilization always; Problems such as secondly, the temperature that middle low-temperature geothermal resource often exists is low, and water-outlet quantity is little, and discharge pressure is little have limited exploitation and have utilized.
Above problem has caused the centering low-temperature geothermal resource directly to exploit utilization, need carry out processes such as flash distillation pressurization, yet the flashing apparatus size is big, easy fouling corrosion when being used to contain the ground pyrogen water of a large amount of mineral substance, and the operating cost height, the thermal efficiency is low.
Summary of the invention
The purpose of this utility model is a kind of addressing the above problem of development, operating cost is low, thermal efficiency height, floor space is little, and working medium is recycling and do not have a system that is used for utilizing under the heat-obtaining form of not fetching water the underground extraction geothermal power of fluorocarbon of any pollutant emission.
The utility model is achieved through the following technical solutions:
The utility model is mainly by circulating heat pipe, heat exchanger, recycle pump, the acting unit, shell-and-tube cooler, the condenser suction booster, cooling tower, cooling tower suction booster and moisturizing suction booster are formed, it is characterized in that: the circulating heat pipe upper semisection is inserted in the heat exchanger shell, form the heat-obtaining duplex matter system, recycle pump one termination is led to heat exchanger, the other end is connected the acting unit, the hot portion of shell-and-tube cooler connects the acting unit in the upper end, the hot subordinate's end of condenser suction booster one termination siphunculus shell tube condenser, the other end is connected heat exchanger, form the acting duplex matter system, the cooling tower bottom is connected by the cooling tower suction booster in cold upper end of shell-and-tube cooler, the cold subordinate's termination of shell-and-tube cooler is led to the cooling tower top, moisturizing suction booster one termination is led to cooling tower, the external water source of the other end, form cooling water recirculation system, wherein, the circulating heat pipe slenderness ratio is bigger, the outside has the flow-disturbing fin, it is inner as cycle fluid that fluorocarbon working medium is added in circulating heat pipe, circulating heat pipe adopts by metals such as the copper of high thermal conductivity and the reaction of discord fluorocarbon or aluminium and makes, be added with liquid fluorocarbon in the heat exchanger, reach purpose of design.
In use, the circulating heat pipe lower semisection is inserted in the geothermal well, lower semisection is a high temperature section, upper semisection is a low-temperature zone, form syphon tube, lower boiling fluorocarbon working medium in the pipe, boiling at high temperature, condensation under the low temperature, thereby form inner convection circulation, and utilize peripheral fin to strengthen hot water peripherally or dry sand rock exchange area to circulating heat pipe, form turbulent perturbation, improve heat exchange efficiency, form the circulation of heat-obtaining working medium, liquid fluorocarbon in heat exchanger with the heat-obtaining duplex matter system in fluorocarbon steam carry out heat exchange, absorb heat of vaporization, become the high pressure steam of heat-carrying, this is the level pressure endothermic process, high pressure steam enters under the recycle pump effect and promotes mechanical component in the acting unit and externally do work, become after pressure reduces and contain the steam that has surplus heat, this is the adiabatic expansion process, contain the steam that has surplus heat enter in the shell-and-tube cooler with cooling water recirculation system in low-temperature cooling water carry out heat exchange, become liquid fluorocarbon, this is the level pressure exothermic process, enter heat exchanger once more after the supercharging of liquid fluorocarbon process condenser suction booster, this is adiabatic pressure process, the level pressure heat absorption, adiabatic expansion, the level pressure heat release, four processes of adiabatic pressurization have constituted an externally steam power Rankine cycle of acting jointly, form the circulation of acting working medium, low-temperature cooling water is through suction booster, have enter behind the certain pressure in the shell-and-tube cooler with the acting duplex matter system in the steam that has surplus heat that contains of fluorocarbon carry out heat exchange, the cooling water after the increasing temperature and pressure enters cooling tower, high-temperature steam discharges, the cooling water of walk-off-loss replenishes from external water source through the moisturizing suction booster, forms cooling water and follows, and reaches purpose of design.
When practical application, the heat-obtaining duplex matter system, the fluorocarbon that uses in the acting duplex matter system is the environmental protection freon refrigerant, working medium can be identical in two circulations, so that liquid feeding is safeguarded, also can use the material of the different trades mark according to the difference of actual conditions, difference according to the trade mark, character has certain difference, but its Main physical state normal temperature is down for colourless, and approximate tasteless gas does not burn, there is not corrosion, toxicity is atomic, the pressurization liquefiable is water white liquid, physical property is suitable, below 200 ℃ with common metal Fails To Respond, chemical stability height, aspect thermodynamic property, thermal diffusivity, thermal conductivity, kinematical viscosity, specific heat capacity at constant pressure is all suitable, hydrogen fluorohydrocarbon (HFC) the class fluorocarbon that thermostability is high, and do not adopt chloro-fluoro-hydrocarbons (CFC), HCFC (HCFC) class etc. has the heavy damage effect to atmospheric ozone layer, and country prohibites the freon refrigerant of use.
The utlity model has following advantage:
1, via enforcement of the present utility model, compare with traditional ground thermal technology of directly getting, adopt the organic Rankine circulation theory add the working medium circulation get underground heat can utilize in low-grade geothermal resources, Complex compact structure, floor space is little, need not be from underground taking-up geothermal water, and only heat is brought out, geothermal water does not participate in the final acting circulation of heat energy, thereby has reduced the fouling and the corrosion of equipment to greatest extent, and very high specific energy and heat exchange efficiency are arranged.
2, via enforcement of the present utility model, a heat-obtaining is not fetched water, and can apply to the geothermal resources exploitation and the utilization of low-temp low-pressure.
3, via enforcement of the present utility model, need not beat recharge well and purchase relevant device, saved cost greatly.
4, via enforcement of the present utility model, thermal efficiency height, the not dirty stifled etching apparatus of working medium, specific power output cost is low.
5, via enforcement of the present utility model, device structure is simple, and floor space is little, and one time cost of investment is low.
6, via enforcement of the present utility model, no any disposal of pollutants in the running, environmental protection.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing, but not as limiting this practicality is new.
Fig. 1 is a theory structure schematic representation of the present utility model.
Fig. 2 is a process flow diagram of the present utility model.
Fig. 3 is the structural representation of the partial sectional view of circulating heat pipe of the present utility model.
In the drawings, 1 circulating heat pipe, 11 flow-disturbing fins, 2 heat exchangers, 3 recycle pumps, 4 acting unit, 5 shell-and-tube coolers, 6 condenser suction boosters, 7 cooling towers, 8 cooling tower suction boosters, 9 moisturizing suction boosters, 10 geothermal wells, Q total amount of heat, Q1 heat-obtaining duplex matter system loses heat, Q2 acting duplex matter system loses heat, Q3 cooling water recirculation system loses heat, W externally do work.
Embodiment
As shown in Figure 1, the utility model is mainly by circulating heat pipe 1, heat exchanger 2, recycle pump 3, acting unit 4, shell-and-tube cooler 5, condenser suction booster 6, cooling tower 7, cooling tower suction booster 8 and moisturizing suction booster 9 are formed, it is characterized in that: circulating heat pipe 1 upper semisection is inserted in heat exchanger 2 shells, form the heat-obtaining duplex matter system, recycle pump 3 one terminations are led to heat exchanger 2, the other end is connected acting unit 4, acting unit 4 is connected in shell-and-tube cooler 5 hot portion upper ends, condenser suction booster 6 one termination siphunculus shell tube condensers 5 hot subordinate's ends, the other end is connected heat exchanger 2, form the acting duplex matter system, cooling tower 7 bottoms are connected by cooling tower suction booster 8 in 5 cold upper ends of shell-and-tube cooler, shell-and-tube cooler 5 cold subordinate's terminations are led to cooling tower 7 tops, moisturizing suction booster 9 one terminations are led to cooling tower 7, the external water source of the other end, form cooling water recirculation system, wherein, circulating heat pipe 1 slenderness ratio is bigger, the outside has flow-disturbing fin 11, it is inner as cycle fluid that fluorocarbon working medium is added in circulating heat pipe 1, circulating heat pipe 1 adopts by metals such as the copper of high thermal conductivity and the reaction of discord fluorocarbon or aluminium and makes, be added with liquid fluorocarbon in the heat exchanger 2, reach purpose of design.
In Fig. 2 and Fig. 3, direction shown in the monolateral arrow is in each circulatory system, the flow direction of working medium.
In Fig. 2 and Fig. 3, the heat-obtaining duplex matter system utilizes flow-disturbing fin 11 to carry out exchange heat in geothermal well 10 with in the well by circulating heat pipe 1, the total amount of heat that exchange obtains is Q, fluorocarbon is in the boiling of being heated of down-hole circulating heat pipe 1 lower semisection temperature higher position, to cocycle, enter at heat exchanger 2, heat is taken away and condensation by the fluorocarbon in the duplex matter system that does work, following ring heat pipe 1 tube wall flows downward once more, constitute the circulation of a sealing, heat-obtaining duplex matter system loses heat Q1.
Fluorocarbon in the acting duplex matter system is walked to enter heat exchanger 2 and is obtained heat, after the volumetric expansion to promoting externally acting W of acting unit 4, walk shell side after pressure reduces and enter be cooled cooling water condensation liquefaction in the water circulation system of shell-and-tube cooler 5, fluorocarbon after the liquefaction enters heat exchanger 2 once more through condenser suction booster 6, acting duplex matter system loses heat Q2.
Cooling water in the cooling water recirculation system is walked tube side through cooling tower suction booster 8 and is entered will do work fluorocarbon waste heat in the duplex matter system of shell-and-tube cooler 5 and take away and expand, after increasing, pressure enters cooling tower 7 coolings, with the outside dissipated heat Q2 of vapor form, enter shell-and-tube cooler 5 through cooling tower suction booster 8 once more, the cooling water of loss replenishes through the moisturizing suction booster, cooling water recirculation system loses heat Q3.
When practical application, when geothermal source was hot dried rock, circulating heat pipe 1 lower semisection did not have flow-disturbing fin 11.
The utility model system architecture is simply compact, and operating cost is low, thermal efficiency height, and floor space is little, and working medium is recycling and do not have any pollutant emission, is widely used in utilizing the system field of the underground extraction geothermal power of fluorocarbon.
Claims (2)
1. system that utilizes the underground extraction geothermal power of fluorocarbon, mainly by circulating heat pipe (1), heat exchanger (2), recycle pump (3), acting unit (4), shell-and-tube cooler (5), condenser suction booster (6), cooling tower (7), cooling tower suction booster (8) and moisturizing suction booster (9) are formed, it is characterized in that: circulating heat pipe (1) upper semisection is inserted in heat exchanger (2) shell, form the heat-obtaining duplex matter system, recycle pump (3) one terminations are led to heat exchanger (1), the other end is connected acting unit (4), the hot portion of shell-and-tube cooler (5) connects acting unit (4) in the upper end, the hot subordinate's end of condenser suction booster (6) one termination siphunculus shell tube condensers (5), the other end is connected heat exchanger (2), form the acting duplex matter system, cooling tower (7) bottom is connected by cooling tower suction booster (8) in cold upper end of shell-and-tube cooler (5), the cold subordinate's termination of shell-and-tube cooler (5) is led to cooling tower (7) top, moisturizing suction booster (9) one terminations are led to cooling tower (7), the external water source of the other end forms cooling water recirculation system.
2. a kind of system that utilizes the underground extraction geothermal power of fluorocarbon according to claim 1 is characterized in that being added with liquid fluorocarbon in the described heat exchanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200051113U CN201953588U (en) | 2011-01-10 | 2011-01-10 | System utilizing fluorocarbon to extract geothermal energy from underground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200051113U CN201953588U (en) | 2011-01-10 | 2011-01-10 | System utilizing fluorocarbon to extract geothermal energy from underground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953588U true CN201953588U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200051113U Expired - Lifetime CN201953588U (en) | 2011-01-10 | 2011-01-10 | System utilizing fluorocarbon to extract geothermal energy from underground |
Country Status (1)
| Country | Link |
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| CN (1) | CN201953588U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359441A (en) * | 2011-09-06 | 2012-02-22 | 徐毅 | System applying medium of low boiling point into low and medium-temperature geothermal well for obtaining heat |
| CN109813001A (en) * | 2019-01-21 | 2019-05-28 | 东营市浩瀚生化科技有限公司 | A kind of hands-free method and geothermal energy extraction element using low temperature geothermal fluid |
| CN110926043A (en) * | 2019-11-27 | 2020-03-27 | 贵州省地质矿产勘查开发局114地质大队 | Novel high-efficient heat transfer of geothermal energy device |
-
2011
- 2011-01-10 CN CN2011200051113U patent/CN201953588U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359441A (en) * | 2011-09-06 | 2012-02-22 | 徐毅 | System applying medium of low boiling point into low and medium-temperature geothermal well for obtaining heat |
| CN109813001A (en) * | 2019-01-21 | 2019-05-28 | 东营市浩瀚生化科技有限公司 | A kind of hands-free method and geothermal energy extraction element using low temperature geothermal fluid |
| CN110926043A (en) * | 2019-11-27 | 2020-03-27 | 贵州省地质矿产勘查开发局114地质大队 | Novel high-efficient heat transfer of geothermal energy device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200313 Granted publication date: 20110831 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |