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WO2022037358A1 - 热管与地热采集装置 - Google Patents

热管与地热采集装置 Download PDF

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Publication number
WO2022037358A1
WO2022037358A1 PCT/CN2021/108088 CN2021108088W WO2022037358A1 WO 2022037358 A1 WO2022037358 A1 WO 2022037358A1 CN 2021108088 W CN2021108088 W CN 2021108088W WO 2022037358 A1 WO2022037358 A1 WO 2022037358A1
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WO
WIPO (PCT)
Prior art keywords
heat
heat transfer
transfer member
cavity
pipe
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.)
Ceased
Application number
PCT/CN2021/108088
Other languages
English (en)
French (fr)
Inventor
朱永刚
黎永耀
杨辉著
吕传文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Institute of Technology Shenzhen
Original Assignee
Harbin Institute of Technology Shenzhen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Institute of Technology Shenzhen filed Critical Harbin Institute of Technology Shenzhen
Priority to EP21857453.1A priority Critical patent/EP4086558A4/en
Priority to US17/801,116 priority patent/US12259190B2/en
Publication of WO2022037358A1 publication Critical patent/WO2022037358A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/17—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/40—Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • 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

Definitions

  • the invention relates to the field of geothermal collection, in particular to a heat pipe and a geothermal collection device.
  • the heat pipe belongs to a heat transfer element, which can transfer heat by the phase change of the working medium in the pipe, so as to quickly transfer the heat of the heat source to the remote end.
  • the heat pipe unit is usually formed by splicing multiple heat pipes, and the adjacent heat pipes are connected by sealing plugs.
  • the heat transfer resistance at the joint of the heat pipes is relatively high, the heat is difficult to transfer effectively, and the length of the heat pipes is relatively long. The problem of heat transfer failure is easy to occur for a long time.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a heat pipe, which can reduce the heat transfer resistance at the joint of the heat pipe and improve the heat transfer efficiency.
  • the present invention also provides a geothermal collection device using the above heat pipe.
  • the present invention provides a heat pipe, including:
  • a closure having a passage
  • the first pipe body has an opening at one end, and the other end is closed by the closure member, and has a first cavity inside for accommodating the heat transfer medium;
  • a first heat transfer member connected to the closure member, located on one side of the closure member, and the first heat transfer member has a cavity inside;
  • a second heat transfer member connected to the closure member, is located on the other side of the closure member, the second heat transfer member has a cavity inside, and can communicate with the first heat transfer member through the channel
  • the inner cavity communicates with the first heat transfer member to define a second cavity for accommodating a heat transfer medium, and the second cavity is separated from the first cavity.
  • the heat pipe is provided with a first heat transfer member and a second heat transfer member.
  • adjacent heat pipes may be formed by the first heat transfer member and the second heat transfer member.
  • the inter-stage heat pipe conducts heat transfer, the thermal resistance of the inter-stage heat pipe is low, and the inter-stage heat pipe can extend into the first cavity to make full contact with the steam, which helps to improve the heat exchange efficiency.
  • the head end of the first pipe body is closed by the closure member, the first heat transfer member is located on the upper side of the closure member, and the second heat transfer member is located on the upper side of the closure member. underside;
  • It also includes a flow guide, one end of the flow guide is connected to the second heat transfer member, and the other end extends downward and is connected to the inner wall of the first pipe body.
  • It also includes a second pipe body, the second pipe body is located inside the first pipe body, and there is a gap between the second pipe body and the first pipe body.
  • the surfaces of the first heat transfer member and the second heat transfer member are both provided with liquid absorbent cores.
  • the surface of the first pipe body is provided with a liquid absorbing core.
  • the present invention provides a heat pipe, including:
  • a first tube body both ends of which are closed by the closure member, and a first cavity for accommodating the heat transfer working medium inside;
  • first heat transfer member connected to one of the closure members and located in the first cavity, the first heat transfer member has a cavity inside;
  • the second heat transfer member is connected to the other closure member and located in the first cavity, and the second heat transfer member has a cavity inside.
  • the present invention provides a geothermal collection device, including:
  • a geothermal collection part comprising a plurality of the heat pipes, and one end of the heat pipe with the opening is connected to an end of the adjacent heat pipe with the closure;
  • the heat exchange part includes a heat exchanger, and the heat exchanger is used for transferring the heat collected by the geothermal collecting part.
  • geothermal collection device according to other embodiments of the present invention.
  • It also includes a heat transfer part, along the heat transfer direction, the tail end of the heat transfer part is connected with the head end of the geothermal collecting part, and the head end of the heat transfer part is connected with the heat exchange part.
  • geothermal collection device according to other embodiments of the present invention.
  • the heat transfer part includes a plurality of the heat pipes, and one end of the heat pipe with the opening is connected to an end of the adjacent heat pipe with the closing member.
  • geothermal collection device according to other embodiments of the present invention.
  • Both ends of the heat pipe are provided with flanges, and the adjacent heat pipes are fitted through the flanges and connected by threaded fasteners;
  • a connecting sleeve is also included, and the adjacent ends of the adjacent heat pipes are respectively inserted into the two ends of the connecting sleeve.
  • the present invention provides a geothermal collection device, including:
  • the geothermal collection part includes a plurality of the heat pipes, the heat pipes having the first heat transfer member are connected to one end of the adjacent heat pipe having the second heat transfer member, so that the first heat transfer member is connected to the end of the second heat transfer member.
  • the second heat transfer members adjacent to the heat pipes jointly define a second cavity for accommodating a heat transfer medium, and the second cavity is separated from the first cavity;
  • the heat exchange part includes a heat exchanger, and the heat exchanger is used for transferring the heat collected by the geothermal collecting part.
  • FIG. 1 is a cross-sectional view of a heat pipe in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a heat pipe unit formed by the heat pipe in FIG. 1;
  • FIG. 3 is a cross-sectional view of a heat pipe in another embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of an interstage heat pipe with a wick in another embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of the connection of two first pipes in an embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a heat pipe in another embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of a heat pipe unit formed by the heat pipe in FIG. 6;
  • FIG. 8 is a cross-sectional view of the geothermal collection device in the working state in the embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of a geothermal collecting device in a working state in another embodiment of the present invention.
  • a feature in the description of the embodiments of the present invention, if a feature is referred to as “set”, “fixed”, “connected”, “installed” on another feature, it can be directly set, fixed, or connected on another feature, It can also be indirectly disposed, fixed, connected, mounted on another feature.
  • “plurality” if it is involved, it means more than two. If it refers to "first” and “second”, it should be understood to be used to distinguish technical features, but not to indicate or imply relative importance, or to imply indicate the number of indicated technical features or to imply indicate the indicated The sequence of technical features.
  • the heat pipes are connected by sealing plugs, and the heat in the lower heat pipe needs to be transferred to the upper heat pipe through the sealing plug.
  • the heat pipe unit is long (usually, the geothermal resource is located in a deep part of the earth's crust, and the heat pipe unit may be several kilometers long), and the problem of heat transfer failure is prone to occur.
  • the present invention provides a heat pipe.
  • an interstage heat pipe can be formed when the heat pipes are connected in series, and the heat transfer can be performed by replacing the sealing plug with the interstage heat pipe. It can effectively reduce thermal resistance, increase heat exchange area and reduce heat loss.
  • a heat pipe 100 includes a first pipe body 110 , a sealing member 120 , a first heat transfer member 130 and a second heat transfer member 140 .
  • One end of the first tube body 110 has an opening 111 , the other end is closed by a closure member 120 , and the inside of the first tube body 110 has a first cavity 112 for accommodating a heat transfer medium.
  • the closure member 120 has a channel 121 so as to realize the communication between the inside and outside of the first pipe body 110 .
  • the first heat transfer member 130 and the second heat transfer member 140 are both connected to the closure member 120 and located on opposite sides of the closure member 120 respectively.
  • Both the first heat transfer member 130 and the second heat transfer member 140 have cavities inside, and the cavities of the two are communicated through the channel 121 on the closure member 120 , so that the first heat transfer member 130 and the second heat transfer member 140 are connected.
  • the second cavity 113 for accommodating the heat transfer medium can be jointly defined, and the second cavity 113 and the first cavity 112 are separated from each other.
  • the first pipe body 110 in this embodiment is a cylindrical pipe and is made of a material capable of conducting heat, including but not limited to metals such as copper, aluminum, steel, and stainless steel, polymethyl methacrylate (PMMA), polymethyl methacrylate (PMMA), Non-metallic materials such as carbonate (PC), polyethylene (PE), polyethylene terephthalate (PET), glass, laminated composite materials such as aluminum-plastic film, composite film of plastic and metal foil, ceramics Matrix composites, resin-based composites and other doped composites.
  • metals such as copper, aluminum, steel, and stainless steel
  • PMMA polymethyl methacrylate
  • PMMA polymethyl methacrylate
  • PMMA Non-metallic materials
  • PC carbonate
  • PE polyethylene
  • PET polyethylene terephthalate
  • laminated composite materials such as aluminum-plastic film, composite film of plastic and metal foil, ceramics Matrix composites, resin-based composites and other doped composites.
  • the head end of the first pipe body 110 is used as the head end of the first pipe body 110
  • the lower end is used as the tail end of the first pipe body 110
  • the direction from bottom to top is the heat transfer direction.
  • the heat pipe located at the upper side is called the upper-level heat pipe
  • the heat pipe located at the lower side is called the lower-level heat pipe (hereinafter referred to as "head end", “tail end”, “heat transfer direction” ", "upper level” and “lower level” have the same meanings)
  • one end of the first pipe body 110 (for example, the rear end in FIG. 1 ) has an opening 111, and the head end is closed by a closing member 120, so, referring to FIG.
  • the closure member 120 of the lower heat pipe 100 can close the opening 111 of the upper heat pipe 100, so that the first cavity 112 of the upper heat pipe 100 is in a closed state, which is convenient for the first cavity
  • a vacuum environment is formed within the body 112 to accelerate the phase transition of the working fluid.
  • the first pipe body 110 may also have an opening 111 at the head end, and the tail end is closed by a closure member 120 .
  • the closure member 120 is used to close the end of the first pipe body 110 .
  • the closure member 120 is an end plate and is connected to the first pipe body 110 by welding or the like.
  • the closure member 120 has a channel 121, and the channel 121 may be a structure such as a through hole.
  • the first heat transfer member 130 and the second heat transfer member 140 may be cylindrical tubes, respectively located on opposite sides of the closure member 120 . Taking the example shown in FIG. At the head end, the first heat transfer member 130 is located on the upper side of the closure member 120 , that is, protrudes from the outside of the first tube body 110 . The second heat transfer member 140 is located at the lower side of the closing member 120 , that is, inside the first pipe body 110 .
  • the arrows in the figure indicate the direction of heat transfer.
  • the first heat transfer member 130 of the lower heat pipe is located in the first cavity 112 of the upper heat pipe 100.
  • the heat pipe 100 The working medium in the first cavity 112 is heated and evaporated, and the formed steam rises to the head end of the heat pipe 100, and exchanges heat with the second heat transfer member 140, and the heat is transferred from the steam to the working medium in the second cavity 113.
  • the working medium in the second cavity 113 is heated and evaporated, the steam in the second cavity 113 rises to the first heat transfer member 130, heat exchange occurs again, and the heat is transferred from the steam in the second cavity 113 to the upper-level heat pipe
  • the working medium in the first cavity 112 of the heat pipe 100 and the working medium in the first cavity 112 of the upper heat pipe 100 are heated and evaporated, and the heat is transferred to the next heat pipe 100 according to the
  • the steam in the first cavity 112 of the lower heat pipe 100 is condensed after heat transfer, and then flows back to the bottom of the lower heat pipe 100 .
  • the steam in the second cavity 113 is condensed after heat transfer, and then flows back to the bottom of the second heat transfer member 140 to realize cyclic transfer.
  • the first heat transfer member 130 and the second heat transfer member 140 are made of a material capable of conducting heat, for example, the same material as the first tube body 110 .
  • the working medium includes, but is not limited to, deionized water, acetone, methanol, heptane, ethanol, methanol, ammonia, carbon dioxide, etc., and different working fluids and different charging mediums can be used in the heat pipe 100 at different positions.
  • the liquid rate is set according to the actual design requirements, such as between 5% and 50%.
  • the heat pipe 100 is provided with a first heat transfer member 130 and a second heat transfer member 140.
  • a heat pipe unit formed by connecting a plurality of heat pipes 100 adjacent heat pipes 100 may pass through the first heat transfer member 130 and the heat transfer member 140.
  • the inter-stage heat pipe formed by the second heat transfer member 140 conducts heat transfer.
  • the inter-stage heat pipe has low thermal resistance and can extend into the first cavity 112 to fully contact the steam, which helps to improve heat exchange efficiency.
  • the head end of the first pipe body 110 is closed by the closure member 120, and the first heat transfer member 130 is located on the upper side of the closure member 120, that is, on the first Outside a tube body 110 , the second heat transfer member 140 is located on the lower side of the closing member 120 , that is, outside the first tube body 110 .
  • the first heat transfer member 130 , the second heat transfer member 140 and the closure member 120 can be connected as a whole, so that the first heat transfer member 130 and the second heat transfer member 140 form an integral interstage heat pipe, ensuring the second cavity 113 sealing performance.
  • the heat pipe further includes a flow guide member 150 , one end of the flow guide member 150 is connected to the second heat transfer member 140 , and the other end extends downward and is connected to the inner wall of the first pipe body 110 .
  • the drainage member 150 may be a rod-shaped structure, and the liquid working medium is attached to the surface of the drainage member 150 and flows downward under the action of gravity.
  • the flow guide member 150 may also include unillustrated collecting discs and suction pipes, wherein the collecting discs are arranged along the circumferential direction of the second heat transfer member 140 (may only cover a part of the circumference of the second heat transfer member 140, such as 1/4 of the circumference, In order to avoid hindering the rise of the steam), and generally protrude along the radial direction of the second heat transfer member 140 .
  • the confluence disc can be recessed downward to form a cavity for accumulating the liquid working medium.
  • the flow guiding member 150 is not limited to the above structure, and any structure capable of guiding the liquid working medium on the second heat transfer member 140 downward to the tube wall can be used.
  • the second heat transfer member 140 may be provided with multiple flow guiding members 150 along the heat transfer direction, and may also be provided with multiple flow guiding members 150 in the circumferential direction, so as to further prevent the liquid working medium from falling directly.
  • the heat pipe 100 further includes a second pipe body 160 , the second pipe body 160 is located inside the first pipe body 110 , and the second pipe body 160 and the first pipe body 110 are located between the second pipe body 160 . There are gaps in between.
  • the second pipe body 160 may be a cylindrical pipe and is coaxial with the first pipe body 110 .
  • the outer diameter of the second tube body 160 is smaller than the inner diameter of the first tube body 110.
  • a gap can be formed between the second tube body 160 and the first tube body 110.
  • the second tube body 160 divides the first cavity 112 into a steam channel and a liquid channel, the hot steam can rise through the middle steam channel, and the liquid working medium can be in the liquid channel between the second tube body 160 and the first tube body 110 flow to avoid the backflow of the liquid working medium affecting the rise of the steam.
  • the surfaces of the first heat transfer member 130 and the second heat transfer member 140 are provided with liquid-absorbing wicks 170 , and the thickness of the liquid-absorbing wicks 170 is generally 0.01 to 0.01 of the pipe diameter. 0.25 times.
  • the inner and outer surfaces of the first heat transfer member 130 and the inner and outer surfaces of the second heat transfer member 140 are provided with liquid absorbing cores 170.
  • the liquid absorbing cores 170 can guide the flow of the liquid working medium, and can also increase the heat exchange area and increase the heat transfer efficiency.
  • the wick 170 can be a hierarchical structure attached to the surface of the heat transfer member, such as metal foam, wire mesh, sintered powder, etc., or a groove structure directly formed on the surface of the heat transfer member, and the cross-sectional shape of the groove can be a circle. Arc, triangle, rectangle, trapezoid, etc. It can be understood that the absorbent core 170 can also be a combination of a grooved structure and a hierarchical structure.
  • the surface of the first pipe body 110 is provided with a liquid absorbing wick 170 , thereby increasing the collecting capacity of the heat pipe 100 .
  • fasteners such as bolts may be used to connect the two heat pipes 100 .
  • the heat pipes 100 With through holes.
  • the heat pipes 100 can be fixed by connecting the two flanges 180 with bolts.
  • a sealing member such as a sealing ring can also be provided between the flanges 180 to achieve the sealing of the first cavity 112 .
  • the two heat pipes 100 can be connected by a connecting sleeve 200.
  • the first and last ends of the heat pipe 100 are provided with external threads
  • the inner wall of the connecting sleeve 200 is provided with internal threads.
  • the connection sleeve 200 and the heat pipe 100 can also be directly fixed by welding.
  • the first pipe body 110 is provided with a vacuuming hole and a liquid injection hole, and the vacuuming hole is used for connecting with a vacuuming device to form a vacuum environment inside the first pipe body 110 .
  • the liquid injection hole is used to connect with the liquid injection device, so as to inject the working medium into the first cavity 112 .
  • a single heat pipe 100 includes a plurality of interstage heat pipes, and the plurality of interstage heat pipes are parallel and arranged along the axial direction of the first pipe body 110 . It can be understood that the multiple interstage heat pipes can also be replaced by a single interstage heat pipe with a large diameter.
  • the heat pipe 100 includes a first pipe body 110 , a sealing member 120 , a first heat transfer member 130 and a second heat transfer member 140 . Both ends of the first tube body 110 are closed by closures, and the inside of the first tube body 110 has a first cavity 112 for accommodating a heat transfer medium.
  • the first heat transfer member 130 is connected to one of the closing members 120 and is located in the first cavity 112, and the first heat transfer member 130 has a cavity inside.
  • the second heat transfer member 140 is connected to the other one of the closing members 120, and is located in the first cavity 112, and the second heat transfer member 140 has a cavity inside.
  • the first heat transfer member 130 is connected to the closure member 120 at the head end of the first tube body 110 , and the closure member 120 at the head end has a channel communicating with the cavity in the first heat transfer member 130 .
  • the second heat transfer member 140 is connected to the closure member 120 at the rear end of the first tube body 110 .
  • the channels all correspond to each other. 7 , when two heat pipes 100 are connected end-to-end, the closure member 120 at the end of the upper heat pipe 100 fits with the closure member 120 at the head end of the lower heat pipe 100, and is fixed by the flange and the threaded connection.
  • the second heat transfer member 140 of the upper-stage heat pipe 100 is butted with the first heat-transfer member 130 of the lower-stage heat pipe 100, and the cavities of the two are connected through the passage on the sealing member 120, so that the second heat transfer member 140 of the upper-stage heat pipe 100 and The first heat transfer members 130 of the lower heat pipes 100 together form the inter-stage heat pipes, thereby defining the second cavity 113 .
  • the purpose of connecting the upper and lower heat pipes 100 to the upper and lower heat pipes 100 can also be achieved.
  • a geothermal collection device is also disclosed.
  • the geothermal collection device includes a geothermal collection part 300 and a heat exchange part 400
  • the geothermal collection part 300 includes a plurality of the above-mentioned heat pipes 100 .
  • the heat pipes 100 are connected in the manner shown in FIG. 2 , that is, the end of the upper heat pipe 100 with the opening 111 is connected with the end of the lower heat pipe 100 with the closure 120, so as to realize the transfer of heat from bottom to top .
  • the heat exchange part 400 is used to transfer the heat collected by the geothermal collection part 300 to other equipment through a heat transfer medium.
  • the surface of the heat pipe 100 constituting the geothermal collecting part 300 is provided with a liquid absorbing core 170 for enhancing the heat exchange capacity.
  • the heat exchange part 400 is located on the ground, and includes a casing 410 and a heat exchange pipe 420, the casing 410 is in communication with the first cavity 112 of the uppermost heat pipe 100, and the heat exchange pipe 420 is located in the casing 410, which can In direct contact with the steam in the first cavity 112 , heat is transferred from the steam to the heat transfer medium of the heat exchange pipe 420 .
  • the heat exchange pipe 420 is wound on the outside of the casing 410 , and the heat of the steam is first transferred to the casing 410 , and then transferred to the heat exchange pipe 420 through the casing 410 .
  • the surface of the casing 410 is provided with a liquid absorbing wick 170 .
  • heat exchange part 400 may also adopt other known heat exchange structures, such as shell and tube heat exchangers and plate heat exchangers.
  • the geothermal collection device further includes a heat transfer part 500, and the rear end of the heat transfer part 500 is connected to the head end of the geothermal collection part 300 along the heat transfer direction, The head end of the heat part 500 is connected to the heat exchange part 400 for heat transfer in the non-heat source area.
  • the heat transfer part 500 includes a plurality of the above-mentioned heat pipes 100 .
  • the heat pipes 100 may adopt the heat pipes of the embodiments shown in FIG. 1 to FIG. 5 , and the heat pipes 100 are connected in the manner shown in FIG. 2 . That is, the end of the upper-stage heat pipe 100 with the opening 111 is connected to the end of the lower-stage heat pipe 100 with the closing member 120, so as to realize the transfer of heat from bottom to top.
  • the surface of the heat pipe 100 constituting the geothermal collecting part 300 may be provided with a liquid absorbing wick 170 or a smooth surface.
  • the heat pipe 100 at the bottom has a start-up device 600 , and along the wall of the heat pipe 100 a plurality of temperature and The pressure sensor, the temperature and pressure sensor can detect the temperature and air pressure in the tube.
  • the working medium can be heated by the starting device 600.
  • the starting device 600 can be used to heat the working medium. It is a heating device such as an electric heating rod.
  • the geothermal collection device includes a geothermal collection part 300 and a heat exchange part 400
  • the geothermal collection part 300 includes a plurality of the above-mentioned heat pipes 100
  • the heat pipes 100 may adopt the heat pipes of the embodiment shown in FIG. 6 .
  • the connection is performed in the manner shown in FIG. 7 , that is, the tail end of the upper heat pipe 100 with the second heat transfer member 140 is connected to the head end of the lower heat pipe 100 with the first heat transfer member 130 , so as to transfer heat from bottom to top.
  • the heat exchange part 400 is used to transfer the heat collected by the geothermal collection part 300 to other equipment through a heat transfer medium.

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种热管与地热采集装置，热管（100）包括封闭件（120）、第一管体（110）、第一传热件（130）与第二传热件（140），封闭件（120）具有通道（121）；第一管体（110）的一端具有开口（111），另一端通过封闭件（120）封闭，内部具有用于容纳传热工质的第一腔体（112）；第一传热件（130）与封闭件（120）连接，位于封闭件（120）的一侧，内部具有空腔；第二传热件（140）与封闭件（120）连接，位于封闭件（120）的另一侧，内部具有空腔，且能够通过通道（121）与第一传热件（130）内的空腔连通，以与第一传热件（130）共同限定出用于容纳传热工质的第二腔体（113），第二腔体（113）与第一腔体（112）分隔。相邻热管（100）之间可以通过第一传热件（130）与第二传热件（140）形成的级间热管进行传热，级间热管的热阻较低，且能够伸入至第一腔体（112）而与蒸汽充分接触，有助于提升换热效率高。

Description

热管与地热采集装置 技术领域
本发明涉及地热采集领域，尤其是涉及热管与地热采集装置。
背景技术
地热资源作为一种绿色低碳、可循环利用的清洁能源，在治污降霾、改变能源消耗结构、改善生态文明的作用日益凸显。热管属于一种传热元件，能够利用管内工质的相变传热，从而将发热源的热量迅速传递到远端。相关技术中，热管单元通常由多根热管拼接而成，相邻热管采用密封堵头连接，然而，此种方式中热管连接处的传热热阻较高，热量难以有效的传递，热管长度较长时容易发生传热失效的问题。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种热管，能够降低热管连接处的传热热阻，提升传热效率。
本发明还提出了一种应用上述热管的地热采集装置。
第一方面，本发明提供了热管，包括：
封闭件，具有通道；
第一管体，一端具有开口，另一端通过所述封闭件封闭，内部具有用于容纳传热工质的第一腔体；
第一传热件，与所述封闭件连接，位于所述封闭件的一侧，所述第一传热件的内部具有空腔；
第二传热件，与所述封闭件连接，位于所述封闭件的另一侧，所述第二传热件的内部具有空腔，且能够通过所述通道与所述第一传热件内的所述空腔连通，以与所述第一传热件共同限定出用于容纳传热工质的第二腔体，所述第二腔体与所述第一腔体分隔。
本发明的热管至少具有如下有益效果：
本发明中，热管设置有第一传热件与第二传热件，在多根热管连接形 成的热管单元中，相邻热管之间可以通过第一传热件与第二传热件形成的级间热管进行传热，级间热管的热阻较低，且能够伸入至第一腔体而与蒸汽充分接触，有助于提升换热效率高。
根据本发明的另一些实施例的热管，
沿热量传递方向，所述第一管体的首端通过所述封闭件封闭，所述第一传热件位于所述封闭件的上侧，所述第二传热件位于所述封闭件的下侧；
还包括引流件，所述引流件的一端与所述第二传热件连接，另一端向下延伸并与所述第一管体的内壁连接。
根据本发明的另一些实施例的热管，
还包括第二管体，所述第二管体位于所述第一管体的内侧，所述第二管体与所述第一管体之间具有间隙。
根据本发明的另一些实施例的热管，
所述第一传热件与所述第二传热件的表面均设有吸液芯。
根据本发明的另一些实施例的热管，
所述第一管体的表面设有吸液芯。
第二方面，本发明提供了热管，包括：
封闭件；
第一管体，两端均通过所述封闭件封闭，内部具有用于容纳传热工质的第一腔体；
第一传热件，与其中一个所述封闭件连接，且位于所述第一腔体内，所述第一传热件的内部具有空腔；
第二传热件，与另一个所述封闭件连接，且位于所述第一腔体内，所述第二传热件的内部具有空腔。
第三方面，本发明提供了地热采集装置，包括：
地热采集部，包括多个所述热管，所述热管具有所述开口的一端与相邻所述热管具有所述封闭件的一端连接；
换热部，包括换热器，所述换热器用于传递由所述地热采集部采集的热量。
根据本发明的另一些实施例的地热采集装置，
还包括传热部，沿热量传递方向，所述传热部的尾端与所述地热采集部的首端连接，所述传热部的首端与所述换热部连接。
根据本发明的另一些实施例的地热采集装置，
所述传热部包括多个所述的热管，所述热管具有所述开口的一端与相邻所述热管具有所述封闭件的一端连接。
根据本发明的另一些实施例的地热采集装置，
所述热管的两端均设有法兰，相邻所述热管通过所述法兰贴合，并通过螺纹紧固件连接；
或者，还包括连接套，相邻所述热管的相邻端分别插接在所述连接套的两端。
第四方面，本发明提供了地热采集装置，包括：
地热采集部，包括多个所述热管，所述热管具有所述第一传热件与相邻所述热管具有所述第二传热件的一端连接，以使所述第一传热件与相邻所述热管的所述第二传热件共同限定出用于容纳传热工质的第二腔体，所述第二腔体与所述第一腔体分隔；
换热部，包括换热器，所述换热器用于传递由所述地热采集部采集的热量。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明实施例中热管的剖视图；
图2是通过图1中热管形成热管单元的剖视图；
图3为本发明另一实施例中热管的剖视图；
图4是本发明另一实施例中具有吸液芯的级间热管的剖视图；
图5是本发明实施例中两个第一管体连接的剖视图；
图6是本发明另一实施例中热管的剖视图；
图7是通过图6中热管形成热管单元的剖视图；
图8是本发明实施例中地热采集装置处于工作状态的剖视图；
图9是本发明另一实施例中地热采集装置处于工作状态的剖视图。
具体实施方式
以下将结合实施例对本发明的构思及产生的技术效果进行清楚、完整地描述，以充分地理解本发明的目的、特征和效果。显然，所描述的实施例只是本发明的一部分实施例，而不是全部实施例，基于本发明的实施例，本领域的技术人员在不付出创造性劳动的前提下所获得的其他实施例，均属于本发明保护的范围。
在本发明实施例的描述中，如果涉及到方位描述，例如“上”、“下”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明实施例的描述中，如果某一特征被称为“设置”、“固定”、“连接”、“安装”在另一个特征，它可以直接设置、固定、连接在另一个特征上，也可以间接地设置、固定、连接、安装在另一个特征上。在本发明实施例的描述中，如果涉及到“多个”，其含义是两个以上。如果涉及到“第一”、“第二”，应当理解为用于区分技术特征，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
相关技术中，热管之间通过密封堵头进行连接，下级热管中的热量需要通过密封堵头传递至上级热管，密封堵头热阻较大，且换热面积较小，导致热量在传递过程中会出现大量的损失，当热管单元长度较长时(通常而言，地热资源位于地壳较深的位置，热管单元可能长度数公里)，容易出现传热失效的问题。
基于此，本发明提供了一种热管，通过在热管上设置第一传热件与第二传热件，可以在热管串联时形成级间热管，通过级间热管代替密封堵头进行传热，能够有效的降低热阻，增大换热面积，减少热损。
以下结合附图1至图5说明本发明实施例的热管。
参照图1，在本发明的一些实施例中，热管100包括第一管体110、 封闭件120、第一传热件130与第二传热件140。第一管体110的一端具有开口111，另一端通过封闭件120封闭，第一管体110的内部具有用于容纳传热工质的第一腔体112。封闭件120上具有通道121，从而能够实现第一管体110内外的连通。第一传热件130与第二传热件140均与封闭件120连接，且分别位于封闭件120的相对两侧。第一传热件130与第二传热件140的内部均具有空腔，二者的空腔通过封闭件120上的通道121连通，从而使得第一传热件130与第二传热件140能够共同限定出用于容纳传热工质的第二腔体113，且第二腔体113与第一腔体112相互分隔。
具体的，本实施例的第一管体110为圆柱管，且由能够导热的材料制成，包含但不限于铜、铝、钢材及不锈钢等金属，聚甲基丙烯酸甲酯(PMMA)、聚碳酸酯(PC)、聚乙烯(PE)、聚对苯二甲酸乙二醇酯(PET)、玻璃等非金属材料，铝塑膜、塑料与金属箔的复合薄膜等层叠类的复合材料，陶瓷基复合材料、树脂基复合材料等掺杂类复合材料。基于热管的实际使用场景，将图1中的上端作为第一管体110的首端，下端作为第一管体110的尾端，从下往上的方向为热量传递方向。此外，在相连的两段热管100中，相对位于上方的热管称之为上级热管，相对位于下方的热管称之为下级热管(下文记载的“首端”、“尾端”、“热量传递方向”、“上级”与“下级”的含义与此相同)，第一管体110的一端(例如图1的尾端)具有开口111，首端通过封闭件120进行封闭，如此，参照图2，当两根热管100按照首尾相连的方式连接时，下级热管100的封闭件120能够封闭上级热管100的开口111，从而使得上级热管100的第一腔体112处于封闭状态，进而便于在第一腔体112内形成真空环境以加速工质的相变。
能够理解的是，也可以是第一管体110的首端具有开口111，尾端通过封闭件120进行封闭。
封闭件120用于封闭第一管体110的端部，本实施例中，封闭件120为端板，通过焊接等方式与第一管体110连接。封闭件120上具有通道121，通道121可以是通孔等结构。
第一传热件130与第二传热件140可以是圆柱状的管体，分别位于封闭件120的相对两侧，以图1所示为例，当封闭件120位于第一管体110的首端时，第一传热件130位于封闭件120的上侧，即伸出于第一管体 110的外部。第二传热件140位于封闭件120的下侧，即位于第一管体110的内部。
参照图2，图中箭头表示热量传递方向。当两根热管100按照首尾相连的方式连接时，下级热管的第一传热件130位于上级热管100的第一腔体112，当下级热管100采集地热或者接受更下级热管的热量后，热管100的第一腔体112内的工质受热蒸发，形成的蒸汽上升至热管100的首端，与第二传热件140发生热量交换，热量从蒸汽传递至第二腔体113内的工质，使得第二腔体113内的工质受热蒸发，第二腔体113内的蒸汽上升至第一传热件130内，再次发生热量交换，热量从第二腔体113内的蒸汽传递至上级热管100的第一腔体112内的工质，上级热管100的第一腔体112内的工质受热蒸发，按照上述流程将热量传递更上次的热管100。另一方面，下级热管100的第一腔体112内的蒸汽在热量传递后发生冷凝，然后回流至下级热管100的底部。第二腔体113内的蒸汽在热量传递后发生冷凝，然后回流至第二传热件140的底部，实现循环传递。
本实施例中，第一传热件130与第二传热件140采用能够导热的材料制成，例如采用与第一管体110相同的材料。
本实施例中，工质包括但不限于去离子水、丙酮、甲醇、庚烷、乙醇、甲醇、氨和二氧化碳等，工质在不同位置的热管100内可采用不同的工质和不同的充液率，根据实际设计需求设定，如在5％至50％之间。
本实施例中，热管100设置有第一传热件130与第二传热件140，在多根热管100连接形成的热管单元中，相邻热管100之间可以通过第一传热件130与第二传热件140形成的级间热管进行传热，级间热管的热阻较低，且能够伸入至第一腔体112而与蒸汽充分接触，有助于提升换热效率高。
参照图1，在本发明的一些具体实施例中，沿热量传递方向，第一管体110的首端通过封闭件120封闭，第一传热件130位于封闭件120的上侧，即位于第一管体110的外部，第二传热件140位于封闭件120的下侧，即位于第一管体110的外部。第一传热件130、第二传热件140与封闭件120可以连接为一体，从而第一传热件130、第二传热件140形成整体式的级间热管，保证第二腔体113的密封性能。
在本发明的一些具体实施例中，热管还包括引流件150，引流件150的一端与第二传热件140连接，另一端向下延伸并与第一管体110的内壁连接。当下级热管100的第一腔体112内的蒸汽换热后，会在第二传热件140的表面发生冷凝，冷凝后的工质可以通过引流件150引导至的第一管体110的内壁后再进行回流，避免工质从第二传热件140上直接下落而增加蒸汽上升的阻力。
引流件150可以是杆状结构，液态的工质附着于引流件150的表面，并在重力的作用下向下流动。引流件150也可以包括未示出的汇流盘与引流管，其中汇流盘沿第二传热件140的周向设置(可以仅覆盖第二传热件140的部分圆周，例如1/4圆周，以避免对蒸汽的上升造成阻碍)，且大致沿第二传热件140的径向伸出。汇流盘可以向下凹陷，以形成蓄积液态工质的腔体，引流管的一端与汇流盘的腔体连通，另一端通向第一管体110的内壁，如此，液态的工质可以先汇集在汇流盘内，然后再通过引流管导向第一管体110的内壁。能够理解的是，引流件150不局限于上述结构，任何能够将第二传热件140上的液态工质向下引流至管壁的结构均可以采用。
能够理解的是，第二传热件140上可以沿热量传递方向设置多个引流件150，也可以沿周向设置多个引流件150，从而进一步避免液态工质直接下落。
参照图3，在本发明的一些具体实施例中，热管100还包括第二管体160，第二管体160位于第一管体110的内侧，第二管体160与第一管体110之间具有间隙。
本实施例中，第二管体160可以是圆柱管，且与第一管体110同轴。第二管体160的外径小于第一管体110的内径，当第二管体160安装在第一管体110内时，第二管体160与第一管体110可以形成间隙，如此，第二管体160将第一腔体112分隔为蒸汽通道与液体通道，热蒸汽可以通过中间的蒸汽通道上升，液态工质可以在第二管体160与第一管体110件的液体通道内流动，避免液态工质的回流影响蒸汽的上升。
参照图4，在本发明的一些具体实施例中，第一传热件130与第二传热件140的表面均设有吸液芯170，吸液芯170的厚度一般是管径的0.01 至0.25倍。具体的，第一传热件130的内外表面，以及第二传热件140内外表面均具有吸液芯170，吸液芯170能够引导液态工质流动，同时也能够增大换热面积，增加换热效率。吸液芯170可以是附着于传热件表面的层级结构，例如泡沫金属、金属丝网、烧结粉末等，也可以直接成型在传热件表面的沟槽结构，沟槽的截面形状可以是圆弧形、三角形、矩形、梯形等。能够理解的是，吸液芯170也可以是沟槽结构与层级结构的组合。
在本发明的一些具体实施例中，当热管100用于采集地热时，第一管体110的表面设有吸液芯170，从而增加热管100的采集能力。
参照图1，在本发明的一些具体实施例中，两根热管100之间可以采用螺栓等紧固件进行连接，具体的，热管100的首尾两端均设有法兰180，法兰180上设有通孔。当两根热管100完成对接后，通过螺栓连接两处法兰180即可实现热管100之间的固定。能够理解的是，还可以在法兰180之间设置密封圈等密封件，以实现第一腔体112的密封。
参照图5，为便于理解，图中仅示出了热管100的第一管体110。在本发明的一些具体实施例中，两根热管100之间可以采用连接套200进行连接，具体的，热管100的首尾两端均设有外螺纹，连接套200的内壁设有内螺纹。当两根热管100的相邻端部分别旋入连接套200即可实现固定。能够理解的是，连接套200与热管100之间也可以直接通过焊接固定。
在本发明的一些具体实施例中，第一管体110上设有抽真空孔与注液孔，抽真空孔用于与抽真空设备连接，以在第一管体110的内部形成真空环境。注液孔用于与注液设备连接，以向第一腔体112内注入工质。
参照图1，在本发明的一些具体实施例中，单根热管100包括多根级间热管，多根级间热管平行，且沿第一管体110的轴向设置。能够理解的是，多根级间热管也可以由大管径的单根级间热管替代。
参照图6，本发明其他一些实施例中，热管100第一管体110、封闭件120、第一传热件130与第二传热件140。第一管体110的两端军通过封闭件进行封闭，第一管体110的内部具有用于容纳传热工质的第一腔体112。第一传热件130与其中一个封闭件120连接,且位于第一腔体112内，第一传热件130的内部具有空腔。第二传热件140与其中另一个封闭件120连接,且位于第一腔体112内，第二传热件140的内部具有空腔。
本实施例中，第一传热件130与第一管体110首端的封闭件120连接，首端的封闭件120上具有连通第一传热件130内空腔的通道。相应的，第二传热件140与第一管体110尾端的封闭件120连接，尾端的封闭件120上具有连通第二传热件140内空腔的通道，且两端封闭件120上的通道均相互对应。参照图7，当两根热管100按照首尾相连的方式连接时，上级热管100尾端的封闭件120与下级热管100首端的封闭件120贴合，并通过法兰与螺纹连接件进行固定。上级热管100的第二传热件140与下级热管100的第一传热件130对接，二者的空腔通过封闭件120上的通道连通，从而使得上级热管100的第二传热件140与下级热管100的第一传热件130共同组成级间热管，从而限定出第二腔体113，如此，同样可以实现级间热管分别连接上下两级热管100的目的。
参照图8，图中换热部400内的箭头表示传热介质的流向。本发明其他一些实施例中，还公开有地热采集装置，地热采集装置包括地热采集部300与换热部400，地热采集部300包括多个上述热管100，热管100可以采用图1至图5所示实施例的热管，热管100之间采用图2所示的方式进行连接，即上级热管100具有开口111的一端与下级热管100具有封闭件120的一端连接，从而实现热量从下往上的传递。换热部400用于将地热采集部300采集的热量通过传热介质传递至其他设备。
本实施例中，构成地热采集部300的热管100的表面设有吸液芯170，用于增强换热能力。
本实施例中，换热部400位于地面，包括壳体410与换热管道420，壳体410与最上级的热管100的第一腔体112连通，换热管道420位于壳体410内，能够与第一腔体112内的蒸汽直接接触，从而使热量从蒸汽传递至换热管道420的传热介质。
参照图9，在本发明的一些具体实施例中，换热管道420卷绕在壳体410的外侧，蒸汽的热量首先传递至壳体410，然后通过壳体410传递至换热管道420。为了增加换热面积，壳体410的表面设置有吸液芯170。
能够理解的是，换热部400也可以采用公知的其他的换热结构，例如管壳式换热器和板式换热器等。
参照图8、图9，在本发明的一些具体实施例中，地热采集装置还包 括传热部500，沿热量传递方向，传热部500的尾端与地热采集部300的首端连接，传热部500的首端与换热部400连接，用于热量在非热源区域的传递。
在本发明的一些具体实施例中，传热部500包括多个上述热管100，热管100可以采用图1至图5所示实施例的热管，热管100之间采用图2所示的方式进行连接，即上级热管100具有开口111的一端与下级热管100具有封闭件120的一端连接，从而实现热量从下往上的传递。构成地热采集部300的热管100的表面可以设置吸液芯170，也可以是光面。
参照图8，在本发明的一些具体实施例中，在构成地热采集部300的多个热管100中，位于最底部的热管100上具有启动装置600，并且沿热管100管壁布置多个温度和压力传感器，温度和压力传感器可以对管内的温度与气压进行检测，当出现工质过冷而难以沸腾的状态时，可以通过启动装置600对工质进行加热，本实施例中，启动装置600可以是电加热棒等加热装置。
本发明其他一些实施例中，地热采集装置包括地热采集部300与换热部400，地热采集部300包括多个上述热管100，热管100可以采用图6所示实施例的热管，热管100之间采用图7所示的方式进行连接，即上级热管100具有第二传热件140的尾端与下级热管100具有第一传热件130的首端连接，从而实现热量从下往上的传递。换热部400用于将地热采集部300采集的热量通过传热介质传递至其他设备。
上面结合附图对本发明实施例作了详细说明，但是本发明不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。此外，在不冲突的情况下，本发明的实施例及实施例中的特征可以相互组合。

Claims (11)

  1. 热管，其特征在于，包括：
    封闭件，具有通道；
    第一管体，一端具有开口，另一端通过所述封闭件封闭，内部具有用于容纳传热工质的第一腔体；
    第一传热件，与所述封闭件连接，位于所述封闭件的一侧，所述第一传热件的内部具有空腔；
    第二传热件，与所述封闭件连接，位于所述封闭件的另一侧，所述第二传热件的内部具有空腔，且能够通过所述通道与所述第一传热件内的所述空腔连通，以与所述第一传热件共同限定出用于容纳传热工质的第二腔体，所述第二腔体与所述第一腔体分隔。
  2. 根据权利要求1所述的热管，其特征在于，沿热量传递方向，所述第一管体的首端通过所述封闭件封闭，所述第一传热件位于所述封闭件的上侧，所述第二传热件位于所述封闭件的下侧；
    还包括引流件，所述引流件的一端与所述第二传热件连接，另一端向下延伸并与所述第一管体的内壁连接。
  3. 根据权利要求1所述的热管，其特征在于，还包括第二管体，所述第二管体位于所述第一管体的内侧，所述第二管体与所述第一管体之间具有间隙。
  4. 根据权利要求1所述的热管，其特征在于，所述第一传热件与所述第二传热件的表面均设有吸液芯。
  5. 根据权利要求1所述的热管，其特征在于，所述第一管体的表面设有吸液芯。
  6. 热管，其特征在于，包括：
    封闭件；
    第一管体，两端均通过所述封闭件封闭，内部具有用于容纳传热工质的第一腔体；
    第一传热件，与其中一个所述封闭件连接，且位于所述第一腔体内，所述第一传热件的内部具有空腔；
    第二传热件，与另一个所述封闭件连接，且位于所述第一腔体内，所 述第二传热件的内部具有空腔。
  7. 地热采集装置，其特征在于，包括：
    地热采集部，包括多个如权利要求1至5中任一项所述的热管，所述热管具有所述开口的一端与相邻所述热管具有所述封闭件的一端连接；
    换热部，包括换热器，所述换热器用于传递由所述地热采集部采集的热量。
  8. 根据权利要求7所述的地热采集装置，其特征在于，还包括传热部，沿热量传递方向，所述传热部的尾端与所述地热采集部的首端连接，所述传热部的首端与所述换热部连接。
  9. 根据权利要求8所述的地热采集装置，其特征在于，所述传热部包括多个所述热管，所述热管具有所述开口的一端与相邻所述热管具有所述封闭件的一端连接。
  10. 根据权利要求7所述的地热采集装置，其特征在于，所述热管的两端均设有法兰，相邻所述热管通过所述法兰贴合，并通过螺纹紧固件连接；
    或者，还包括连接套，相邻所述热管的相邻端分别插接在所述连接套的两端。
  11. 地热采集装置，其特征在于，包括：
    地热采集部，包括多个如权利要求6所述的热管，所述热管具有所述第一传热件与相邻所述热管具有所述第二传热件的一端连接，以使所述第一传热件与相邻所述热管的所述第二传热件共同限定出用于容纳传热工质的第二腔体，所述第二腔体与所述第一腔体分隔；
    换热部，包括换热器，所述换热器用于传递由所述地热采集部采集的热量。
PCT/CN2021/108088 2020-08-18 2021-07-23 热管与地热采集装置 Ceased WO2022037358A1 (zh)

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