WO2024055199A1 - 地热发电系统 - Google Patents

地热发电系统 Download PDF

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Publication number
WO2024055199A1
WO2024055199A1 PCT/CN2022/118723 CN2022118723W WO2024055199A1 WO 2024055199 A1 WO2024055199 A1 WO 2024055199A1 CN 2022118723 W CN2022118723 W CN 2022118723W WO 2024055199 A1 WO2024055199 A1 WO 2024055199A1
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Prior art keywords
temperature
power generation
generation system
heat
cover
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PCT/CN2022/118723
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English (en)
French (fr)
Inventor
张至澔
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J Lida Enterprise Co Ltd
World Treasure Green Energy Co Ltd
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J Lida Enterprise Co Ltd
World Treasure Green Energy Co Ltd
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Priority to PCT/CN2022/118723 priority Critical patent/WO2024055199A1/zh
Priority to CN202280099955.XA priority patent/CN119856384A/zh
Priority to TW111143060A priority patent/TWI816601B/zh
Publication of WO2024055199A1 publication Critical patent/WO2024055199A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G4/00—Devices for producing mechanical power from geothermal energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • 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
    • 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 present invention relates to the technical field of a power generation system, in particular to the technical field of a geothermal power generation system.
  • Hot spring power generation is also a form of geothermal power generation.
  • the outlet temperature of hot springs reaches above 85°C to have sufficient power generation efficiency.
  • the heat contained in the hot springs vaporizes the refrigerant and drives the generator to generate electricity.
  • the hot spring heat exchange method uses two parallel pipelines at the same time, namely hot spring water and refrigerant.
  • the hot spring water transfers heat energy to the refrigerant pipeline through heat conduction, causing the refrigerant to evaporate and drive the generator.
  • the main purpose of the present invention is to provide a geothermal power generation system that does not require refrigerant.
  • One embodiment includes:
  • a heat collecting cover includes a cover body and a cover opening.
  • the cover body includes a thermal conductive layer, a thermoelectric conversion layer, and a heat dissipation layer in order from the inside to the outside.
  • the cover opening can face a geothermal well. ;
  • a temperature measuring device capable of measuring the heat collection temperature of one of the thermal conductive layers
  • a control circuit controls the distance of the heat collecting cover from the geothermal well through the lifting device according to the heat collecting temperature. If the heat collecting temperature is higher than a set temperature range, the heat collecting cover is controlled to move away from the geothermal well.
  • the geothermal well wherein, if the heat collection temperature is lower than the set temperature interval, the heat collection cover is controlled to be close to the geothermal well, and wherein, if the heat collection temperature is between the set temperature interval, the heat collection cover is controlled to be close to the geothermal well. The cover does not move.
  • the main purpose of the present invention is to provide a geothermal power generation system that does not require refrigerant.
  • One embodiment includes:
  • a heat collecting cover includes a cover body and a cover opening.
  • the cover body includes a thermal conductive layer, a thermoelectric conversion layer, and a heat dissipation layer in order from the inside to the outside.
  • the cover opening can face a geothermal well. ;
  • a temperature measuring device capable of measuring the heat collection temperature of one of the thermal conductive layers
  • An exhaust valve including an exhaust port, can be provided in the geothermal well
  • a control circuit controls the exhaust volume of the geothermal well through the exhaust valve according to the heat collection temperature. If the heat collection temperature is higher than a set temperature range, the exhaust valve is controlled to reduce the exhaust volume. air port, wherein, if the heat collection temperature is lower than the set temperature interval, the exhaust valve is controlled to expand the exhaust port, wherein, if the heat collection temperature is within the set temperature interval, the exhaust valve is controlled The valve does not operate.
  • Figure 1 is an embodiment of the present invention, a cross-sectional view of a heat collecting cover
  • Figure 2 is a schematic diagram of a geothermal power generation system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a geothermal power generation system according to another embodiment of the present invention.
  • thermoelectric conversion layer 112 thermoelectric conversion layer
  • FIG. 1 is a cross-sectional view of a heat collecting cover 1 , including a cover body 11 and a cover opening 12 .
  • the cover 11 includes a thermal conductive layer 111, a thermoelectric conversion layer 112, and a heat dissipation layer 113 in order from the inside to the outside.
  • the thermal conductive layer 111 can be a copper layer, an aluminum layer, or a zinc layer.
  • the thermoelectric conversion layer 112 can be a plurality of thermoelectric chips laid to convert thermal energy into electrical energy.
  • the heat dissipation layer 113 can be a plurality of heat dissipation fins. Made of sheets.
  • the cover opening 12 can face the heat source, such as a geothermal well, and collect the hot gas emitted by the geothermal well through the cover opening 12.
  • the thermal conductive layer 111 conducts the thermal energy of the hot gas to the thermoelectric conversion layer 112, and the thermoelectric conversion layer 112 converts the thermal energy into electrical energy. .
  • the heat dissipation layer 113 can help the thermoelectric conversion layer 112 accelerate heat dissipation.
  • a geothermal power generation system includes a heat collecting cover 1, a geothermal well 2, a lifting device 3, a temperature measurement device, a control circuit, and a power storage device.
  • the cover opening 12 of the heat collecting cover 1 faces the geothermal well 2, collects the hot gas discharged from the geothermal well 2, generates electricity from the hot gas, and then transmits the electricity to the power storage device for storage.
  • the temperature measurement device may be a non-contact temperature measurement device, such as an infrared thermometer, or a contact temperature measurement device, such as a temperature sensing chip, which can measure the temperature of the thermal conductive layer 111 when the heat collecting cover 1 collects hot air. Collection temperature.
  • a non-contact temperature measurement device such as an infrared thermometer
  • a contact temperature measurement device such as a temperature sensing chip
  • the control circuit can control the distance between the heat collecting cover 1 and the geothermal well 2 through the electric lifting device 3 .
  • a temperature range is preset. When the heat collection temperature is higher than the set temperature range, the lifting device 3 moves the heat collecting cover 1 away from the geothermal well 2; when the heat collection temperature is lower than the set temperature range, the lifting device 3 moves the heat collecting cover 1 away from the geothermal well 2. The heat cover 1 is close to the geothermal well 2; when the heat collection temperature is within the set temperature range, the lifting device 3 stops the heat collection cover 1 from moving.
  • the power storage device may be a rechargeable battery or a supercapacitor.
  • a geothermal power generation system includes a heat collecting cover 1, a geothermal well 2, an exhaust valve 4, a temperature measurement device, a control circuit, and a power storage device.
  • the cover opening 12 of the heat collecting cover 1 faces the geothermal well 2, collects the hot gas emitted by the geothermal well 2, generates electricity from the hot gas, and then transmits the electric power to the power storage device for storage.
  • the exhaust valve 4 is provided in the geothermal well 2 .
  • the exhaust valve 4 has an exhaust port 5, and the size of the exhaust port 5 determines the exhaust volume of the geothermal well 2.
  • the control circuit can control the exhaust volume of the geothermal well 2 through the electric exhaust valve 4 provided in the geothermal well 2 .
  • a temperature range is preset. When the heat collection temperature is higher than the set temperature range, the exhaust valve 4 narrows the exhaust port 5; when the heat collection temperature is lower than the set temperature range, the exhaust valve 4 expands the exhaust port. 5; When the heat collection temperature is within the set temperature range, the exhaust valve 4 makes the exhaust port 5 inactive.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Control Of Eletrric Generators (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

本发明主要揭示一种地热发电系统，包括：一集热罩，包括一罩体，及一罩口，其中，该罩体由内向外依序包括一导热层，一热电转换层，及一散热层，其中，该罩口可朝向一地热井；一测温装置，可测量该导热层之一集热温度；一升降装置；一控制电路，根据该集热温度，透过该升降装置控制该集热罩离该地热井之一距离，其中，如果该集热温度高于一设定温度区间，则控制该集热罩远离该地热井，其中，如果该集热温度低于一设定温度区间，则控制该集热罩靠近该地热井，其中，如果该集热温度介于一设定温度区间，则控制该集热罩不动作。

Description

地热发电系统 技术领域
本发明系关于一种发电系统的技术领域，尤指一种关于地热发电系统的技术领域。
背景技术
目前地热发电，是利用地底下的热能加热地下水，使其转换为蒸气，再推动发电机产生电力，而温泉发电也是地热发电的一种形式。通常温泉的出口温度达到85℃以上才有足够的发电效益，藉由温泉中含有的热度，将冷媒汽化进而推动发电机发电。温泉热交换的方式是同时利用两条平行的管路，分别为温泉水及冷媒，温泉水经由热传导将热能传递到冷媒管线，使冷媒蒸发并推动发电机。
发明内容
本发明之主要目的在于提供一种不需要冷媒的地热发电系统，于一实施例包括：
一集热罩，包括一罩体，及一罩口，其中，该罩体由内向外依序包括一导热层，一热电转换层，及一散热层，其中，该罩口可朝向一地热井；
一测温装置，可测量该导热层之一集热温度；
一升降装置；
一控制电路，根据该集热温度，透过该升降装置控制该集热罩离该地热井之一距离，其中，如果该集热温度高于一设定温度区间，则控制该集热罩远离该地热井，其中，如果该集热温度低于该设定温度区间，则控制该集热罩靠近该地热井，其中，如果该集热温度介于该设定温度区间，则控制该集热罩不动作。
本发明之主要目的在于提供一种不需要冷媒的地热发电系统，于一实施例包括：
一集热罩，包括一罩体，及一罩口，其中，该罩体由内向外依序包括一导热层，一热电转换层，及一散热层，其中，该罩口可朝向一地热井；
一测温装置，可测量该导热层之一集热温度；
一排气阀，包括一排气口，可设置于该地热井；
一控制电路，根据该集热温度，透过该排气阀控制该地热井之一排气量，其中，如果该集热温度高于一设定温度区间，则控制该排气阀缩小该排气口，其中，如果该集热温度低于该设定温度区间，则控制该排气阀扩张该排气口，其中，如果该集热温度介于该设定温度区 间，则控制该排气阀不动作。
附图说明
图1为本发明之一实施例，集热罩之剖面图；
图2为本发明之一实施例，地热发电系统之示意图；
图3为本发明知另一实施例，地热发电系统之示意图。
图例说明：
<本发明>
1集热罩
2地热井
3升降装置
4排气阀
5排气口
11罩体
12罩口
111导热层
112热电转换层
113散热层
具体实施方式
于一实施例，参考图1，一种集热罩1的剖面图，包括罩体11，罩口12。罩体11由内至外依序包括导热层111，热电转换层112，散热层113。于一实施例，导热层111可为铜层、铝层，或是锌层，热电转换层112可为多个热电芯片铺设而成，将热能转换成电能，散热层113可为多个散热鳍片铺设而成。罩口12可以正对着热源，例如地热井，透过罩口12收集由地热井散发之热气，导热层111将热气之热能传导至热电转换层112，热电转换层112再将热能转换成电能。散热层113能帮助热电转换层112加速散热。
于一实施例，参考图2，一种地热发电系统，包括集热罩1，地热井2，升降装置3，测温装置，控制电路，及储电装置。集热罩1的罩口12正对着地热井2，收集由地热井2排出之热气，然后由热气产生电力，再将电力传送至储电装置来储存。
于一实施例，测温装置可能为非接触式测温装置，例如红外线测温仪，或是接触式测温装置，例如感温芯片，可以测量集热罩1收集热气时，导热层111的集热温度。
于一实施例，控制电路可以透过电动式的升降装置3，控制集热罩1和地热井2之间的距离。例如预先设定一温度区间，集热温度高于设定的温度区间时，升降装置3让集热罩1远离地热井2；集热温度低于设定的温度区间时，升降装置3让集热罩1靠近地热井2；集热温度介于设定的温度区间时，升降装置3让集热罩1不动作。
于一实施例，储电装置可能为充电电池，或是超级电容。
于一实施例，参考图3，一种地热发电系统，包括集热罩1，地热井2，排气阀4，测温装置，控制电路，及储电装置。集热罩1的罩口12正对着地热井2，收集由地热井2散发之热气，然后由热气产生电力，再将电力传送至储电装置来储存。排气阀4设置在地热井2。排气阀4有个排气口5，排气口5的大小决定地热井2的排气量。
于一实施例，控制电路可以透过设置在地热井2的电动式的排气阀4，控制地热井2的排气量。例如预先设定一温度区间，集热温度高于设定的温度区间时，排气阀4缩小排气口5；集热温度低于设定的温度区间时，排气阀4扩张排气口5；集热温度介于设定的温度区间时，排气阀4让排气口5不动作。

Claims (14)

  1. 一种地热发电系统，包括：
    一集热罩，包括一罩体，及一罩口，其中，该罩体由内向外依序包括一导热层，一热电转换层，及一散热层，其中，该罩口可朝向一地热井；
    一测温装置，可测量该导热层之一集热温度；
    一升降装置；
    一控制电路，根据该集热温度，透过该升降装置控制该集热罩离该地热井之一距离，其中，如果该集热温度高于一设定温度区间，则控制该集热罩远离该地热井，其中，如果该集热温度低于该设定温度区间，则控制该集热罩靠近该地热井，其中，如果该集热温度介于该设定温度区间，则控制该集热罩不动作。
  2. 如权利要求1所述之地热发电系统，其中该导热层，包括一铜层。
  3. 如权利要求1所述之地热发电系统，其中该导热层，包括一铝层。
  4. 如权利要求1所述之地热发电系统，其中该导热层，包括一锌层。
  5. 如权利要求1所述之地热发电系统，其中该热电转换层包括多个热电芯片。
  6. 如权利要求1所述之地热发电系统，其中该散热层包括多个散热鳍片。
  7. 如权利要求1所述之地热发电系统，其中该测温装置包括一红外线测温仪。
  8. 如权利要求1所述之地热发电系统，其中该测温装置包括一感温芯片。
  9. 一种地热发电系统，包括：
    一集热罩，包括一罩体，及一罩口，其中，该罩体由内向外依序包括一导热层，一热电转换层，及一散热层，其中，该罩口可朝向一地热井；
    一测温装置，可测量该导热层之一集热温度；
    一排气阀，包括一排气口，可设置于该地热井；
    一控制电路，根据该集热温度，透过该排气阀控制该地热井之一排气量，其中，如果该集热温度高于一设定温度区间，则控制该排气阀缩小该排气口，其中，如果该集热温度低于该设定温度区间，则控制该排气阀扩张该排气口，其中，如果该集热温度介于该设定温度区间，则控制该排气阀不动作。
  10. 如权利要求9所述之地热发电系统，其中该导热层，包括一铜层。
  11. 如权利要求9所述之地热发电系统，其中该热电转换层包括多个热电芯片。
  12. 如权利要求9所述之地热发电系统，其中该散热层包括多个散热鳍片。
  13. 如权利要求9所述之地热发电系统，其中该测温装置包括一红外线测温仪。
  14. 如权利要求9所述之地热发电系统，其中该测温装置包括一感温芯片。
PCT/CN2022/118723 2022-09-14 2022-09-14 地热发电系统 Ceased WO2024055199A1 (zh)

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PCT/CN2022/118723 WO2024055199A1 (zh) 2022-09-14 2022-09-14 地热发电系统
CN202280099955.XA CN119856384A (zh) 2022-09-14 2022-09-14 地热发电系统
TW111143060A TWI816601B (zh) 2022-09-14 2022-11-10 地熱發電系統

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KR20170052119A (ko) * 2015-11-03 2017-05-12 주식회사 남도 지열을 이용한 냉온수 공급장치
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CN108953080A (zh) * 2018-07-10 2018-12-07 肇庆市高新区晓靖科技有限公司 一种小型地热发电系统
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