CN115419820A - Low-carbon liquefied natural gas underground storage system capable of heating and generating power - Google Patents

Low-carbon liquefied natural gas underground storage system capable of heating and generating power Download PDF

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Publication number
CN115419820A
CN115419820A CN202211063914.3A CN202211063914A CN115419820A CN 115419820 A CN115419820 A CN 115419820A CN 202211063914 A CN202211063914 A CN 202211063914A CN 115419820 A CN115419820 A CN 115419820A
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China
Prior art keywords
geothermal
storage tank
heat insulation
buried
buried pipe
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Pending
Application number
CN202211063914.3A
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Chinese (zh)
Inventor
肖飞
陈子明
余红发
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Priority to CN202211063914.3A priority Critical patent/CN115419820A/en
Publication of CN115419820A publication Critical patent/CN115419820A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/06—Closures, e.g. cap, breakable member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/005—Underground or underwater containers or vessels
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0375—Thermal insulations by gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0678—Concrete
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0323—Heat exchange with the fluid by heating using another fluid in a closed loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0142—Applications for fluid transport or storage placed underground
    • F17C2270/0144—Type of cavity
    • F17C2270/0147—Type of cavity by burying vessels
    • 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a low-carbon liquefied natural gas underground storage system capable of heating and generating electricity, belongs to the technical field of natural gas storage, and aims to solve the problem that cold energy is wasted in the existing storage system; the geothermal energy storage system comprises a storage tank, a geothermal buried pipe, a heat insulation layer, a temperature difference power generation module, a geothermal exploitation well and a heat insulation central pipe, wherein the main body part of the storage tank is buried in the ground, and the top part of the storage tank is exposed out of the ground; geothermal buried pipes are buried at the outer periphery of the side wall of the storage tank and below the bottom wall; the heat insulation layer is positioned around or at the bottom of the storage tank and positioned between the geothermal buried pipe and the storage tank; the temperature difference power generation module is used for recovering cold energy and is arranged between the heat insulation layer and the geothermal buried pipe; the geothermal buried pipe is arranged in the geothermal exploitation well and is positioned at one side of the storage tank; the heat insulation central pipe is arranged in the geothermal exploitation well and is communicated with the geothermal buried pipe on the periphery outside the side wall of the storage tank; the invention utilizes thermosiphon to realize the self-circulation of working medium, the extraction of geothermal energy and the heating of geothermal energy to form a closed loop.

Description

Low-carbon liquefied natural gas underground storage system capable of heating and generating power
Technical Field
The invention relates to the technical field of natural gas storage, in particular to a low-carbon liquefied natural gas underground storage system capable of heating and generating power.
Background
In areas where earthquakes are frequent or where energy safety levels are demanding, large underground storage tanks are often built to store the liquefied natural gas. However, the temperature of liquefied natural gas at atmospheric pressure is-162 ℃, and storage thereof causes a decrease in the temperature of the surrounding formation and even freezing, thereby compromising the stability of the storage tank. Therefore, it is desirable to install heaters around and at the bottom of the tank to avoid the formation temperature from dropping below zero degrees.
The existing heaters require additional energy consumption, generally converting electrical energy into thermal energy. Meanwhile, despite the existence of the thermal insulation layer, due to the existence of a great temperature difference, heat in the surrounding formation or heat generated by the heater is absorbed by the liquefied natural gas to cause partial vaporization of the liquid, and this process undoubtedly results in the waste of cold energy (energy stored in the cryogenic liquid).
Disclosure of Invention
The invention aims to solve the problem that the existing storage system wastes cold energy (energy stored in cryogenic liquid).
In order to solve the technical problems, the invention provides the following technical scheme:
a low carbon liquefied natural gas underground storage system that can be heated and generate power by geothermal heat, comprising:
the storage tank is partially buried in the ground, and the top of the storage tank is exposed out of the ground;
the geothermal buried pipe is buried at the outer periphery of the side wall and below the bottom wall of the storage tank;
a thermal insulation layer; the heat insulation layer is positioned around or at the bottom of the storage tank and positioned between the geothermal buried pipe and the storage tank;
the thermoelectric generation module is used for recovering cold energy and provided with a heat absorption surface and a heat dissipation surface, the thermoelectric generation module is arranged between the heat insulation layer and the geothermal buried pipe, the heat absorption surface is close to the geothermal buried pipe, and the heat dissipation surface is close to the heat insulation layer;
the geothermal exploitation well is positioned on one side of the storage tank, and is internally provided with the geothermal buried pipe;
and the heat insulation central pipe is arranged in the geothermal exploitation well and is communicated with the geothermal buried pipe on the periphery outside the side wall of the storage tank.
Preferably, the embodiment of the present application further discloses: the storage tank is provided with a pouring cover, the bottom of the pouring cover is provided with a suspended ceiling, and the bottom of the suspended ceiling is provided with a glass heat insulation layer; the internal surface of the lateral wall of storage jar is provided with the stainless steel membrane, the stainless steel membrane deviates from the one side of lateral wall is provided with the lateral wall insulating layer.
Preferably, the embodiment of the present application further discloses: the geothermal buried pipe is a spiral geothermal buried pipe with multiple branches arranged side by side.
Preferably, the embodiment of the present application further discloses: the heat insulation layer is air.
Compared with the prior art, the invention has the beneficial effects that:
1. the self-circulation of the working medium, the extraction of geothermal energy and the heating of geothermal heat are realized by utilizing thermosiphon to form a closed loop;
2. a temperature difference power generation module is arranged at a specific position between the geothermal buried pipe and the storage tank, so that cold energy can be recovered;
3. the temperature difference power generation module can supply power for other electronic components of the system;
4. the application does not need to introduce extra energy to heat the storage tank and does not need to introduce a moving component.
Drawings
FIG. 1 is a schematic structural diagram of a low-carbon liquefied natural gas underground storage system capable of heating and generating power according to an embodiment of the invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a geothermal buried pipe and an insulated central pipe according to an embodiment of the present invention.
Description of reference numerals:
in the figure: 1. storing the tank; 11. pouring a cover; 111. a suspended ceiling; 112. a glass thermal insulation layer; 12. a side wall; 121. a stainless steel film; 122. a side wall thermal insulation layer; 13. a bottom wall; 2. burying the pipe in the geothermal way; 3. a thermal insulation layer; 4. a thermoelectric generation module; 5. cutting off the wall; 6. a heat-insulating central tube; 7. and (3) ground.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example (b):
as shown in fig. 1 to 3, a low carbon liquefied natural gas underground storage system that can be heated and generate power by geothermal heat, includes: the system comprises a storage tank 1, a geothermal buried pipe 2, a heat insulation layer 3, a temperature difference power generation module 4, a geothermal exploitation well and a heat insulation central pipe 6, wherein the main body part of the storage tank 1 is buried in the ground 7, and the top part of the storage tank is exposed out of the ground; the geothermal buried pipe 2 is buried outside and around the side wall 12 and below the bottom wall 13 of the storage tank 1; the heat insulation layer 3 is positioned around or at the bottom of the storage tank 1 and is positioned between the geothermal buried pipe 2 and the storage tank 1; the thermoelectric generation module 4 is used for recovering cold energy, the thermoelectric generation module 4 is provided with a heat absorption surface and a heat dissipation surface, the thermoelectric generation module 4 is installed between the heat insulation layer 3 and the geothermal embedded pipe 2, the heat absorption surface is close to the geothermal embedded pipe 2, and the heat dissipation surface is close to the heat insulation layer 3; the geothermal buried pipe 2 is arranged in the geothermal exploitation well and is positioned at one side of the storage tank 1; the heat insulation central pipe 6 is arranged in the geothermal exploitation well and is communicated with the geothermal buried pipe 2 around the outer side wall 12 of the storage tank 1.
Specifically speaking:
the side walls 12 of the tank 1 are embodied as being made of reinforced concrete.
Further, the storage tank 1 is provided with a pouring cover 11, the bottom of the pouring cover 11 is provided with a suspended ceiling 111, and the bottom of the suspended ceiling 111 is provided with a glass heat insulation layer 112; the inner surface of the side wall 12 of the storage tank 1 is provided with a stainless steel film 121, and one surface of the stainless steel film 121, which is far away from the side wall 12, is provided with a side wall heat insulation layer 122.
Specifically speaking:
the potting cover 11 is embodied as being made of reinforced concrete.
Further, the geothermal buried pipe 2 is a side-by-side, multi-branch and spiral geothermal buried pipe 2.
Further, the heat insulation layer 3 is air.
Further, a cut-off wall 5 is arranged between the geothermal buried pipe 2 at the periphery outside the side wall 12 and the storage tank 1.
The using method comprises the following steps: injecting an ammonia water mixture into the geothermal buried pipe 2 in the well, (the concentration of ammonia is determined according to the geological and temperature distribution characteristics of the geothermal well and the thermodynamic characteristics of the storage tank);
after terrestrial heat is extracted, the working medium is subjected to phase change to generate gas, the gas goes upwards along the heat-insulating central pipe 6 in the well and enters the terrestrial heat embedded pipe 2 on the side around the storage tank 1, one path of high-temperature fluid goes downwards to enter the geothermal heat embedded pipe 2 at the bottom of the well, the density of the fluid after temperature reduction is increased to drive the high-temperature fluid to flow back to the embedded pipe in the terrestrial heat well, and a new round of heating and gasification cycle is started.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (4)

1. A low carbon liquefied natural gas underground storage system that can be heated and generate power by geothermal heat, comprising:
the storage tank is partially buried in the ground, and the top of the storage tank is exposed out of the ground;
the geothermal buried pipe is buried at the outer periphery of the side wall of the storage tank and below the bottom wall;
the heat insulation layer is positioned around or at the bottom of the storage tank and positioned between the geothermal embedded pipe and the storage tank;
the thermoelectric power generation module is used for recovering cold energy and is provided with a heat absorption surface and a heat dissipation surface, the thermoelectric power generation module is arranged between the heat insulation layer and the geothermal buried pipe, the heat absorption surface is close to the geothermal buried pipe, and the heat dissipation surface is close to the heat insulation layer;
the geothermal exploitation well is positioned on one side of the storage tank, and the geothermal exploitation well is internally provided with the geothermal buried pipe;
and the heat insulation central pipe is arranged in the geothermal exploitation well and is communicated with the geothermal buried pipe on the periphery outside the side wall of the storage tank.
2. The underground low-carbon liquefied natural gas storage system capable of being heated and generating power by geothermal energy according to claim 1, wherein: the storage tank is provided with a pouring cover, the bottom of the pouring cover is provided with a suspended ceiling, and the bottom of the suspended ceiling is provided with a glass heat insulation layer; the internal surface of the lateral wall of storage jar is provided with the stainless steel membrane, the stainless steel membrane deviates from the one side of lateral wall is provided with the lateral wall insulating layer.
3. The underground storage system for low-carbon liquefied natural gas capable of being heated and generating power by geothermal heating according to claim 1 or 2, wherein: the geothermal buried pipe is a spiral geothermal buried pipe with multiple branches arranged side by side.
4. The underground low-carbon liquefied natural gas storage system capable of being heated and generating power by geothermal energy according to claim 1, wherein: the heat insulation layer is air.
CN202211063914.3A 2022-09-01 2022-09-01 Low-carbon liquefied natural gas underground storage system capable of heating and generating power Pending CN115419820A (en)

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CN106223312A (en) * 2016-07-18 2016-12-14 河海大学 A kind of novel steel tube energy stake improving shallow layer geothermal energy utilization ratio and preparation method thereof
CN109519697A (en) * 2019-01-07 2019-03-26 中海石油气电集团有限责任公司 A kind of underground LNG storage tank and its method of construction
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CN209893671U (en) * 2018-12-21 2020-01-03 宜昌华腾管道工程有限公司 High-efficient geothermal utilization system based on closed loop heat medium pipe
CN214333087U (en) * 2020-12-08 2021-10-01 西安联创分布式可再生能源研究院有限公司 Heat pipe type middle-deep geothermal heat development device with self-circulation function
CN216202461U (en) * 2021-10-11 2022-04-05 梅州中燃城市燃气发展有限公司 Cooling and pressure stabilizing device of natural gas storage tank
CN114962979A (en) * 2022-05-30 2022-08-30 中海石油气电集团有限责任公司 Underground gas storage suitable for low-temperature energy

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101499746A (en) * 2008-10-28 2009-08-05 无锡明惠通科技有限公司 Plate type semiconductor thermo-electric generation apparatus
CN101832673A (en) * 2010-01-27 2010-09-15 龚智勇 Method and device for conducting and recycling subterranean heat with production casings
CN204042414U (en) * 2014-07-25 2014-12-24 中国石油天然气集团公司 A kind of 16 × 10 4m 3concrete holds formula storage tank entirely
CN105805539A (en) * 2014-12-31 2016-07-27 张家港中集圣达因低温装备有限公司 LNG full-capacity tank
CN106223312A (en) * 2016-07-18 2016-12-14 河海大学 A kind of novel steel tube energy stake improving shallow layer geothermal energy utilization ratio and preparation method thereof
CN109556305A (en) * 2018-12-21 2019-04-02 宜昌华腾管道工程有限公司 A kind of efficient terrestrial heat utilization system based on closed circuit heat medium pipe and utilize method
CN209893671U (en) * 2018-12-21 2020-01-03 宜昌华腾管道工程有限公司 High-efficient geothermal utilization system based on closed loop heat medium pipe
CN109519697A (en) * 2019-01-07 2019-03-26 中海石油气电集团有限责任公司 A kind of underground LNG storage tank and its method of construction
CN214333087U (en) * 2020-12-08 2021-10-01 西安联创分布式可再生能源研究院有限公司 Heat pipe type middle-deep geothermal heat development device with self-circulation function
CN216202461U (en) * 2021-10-11 2022-04-05 梅州中燃城市燃气发展有限公司 Cooling and pressure stabilizing device of natural gas storage tank
CN114962979A (en) * 2022-05-30 2022-08-30 中海石油气电集团有限责任公司 Underground gas storage suitable for low-temperature energy

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