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WO2013060340A1 - Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique - Google Patents

Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique Download PDF

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Publication number
WO2013060340A1
WO2013060340A1 PCT/EA2011/000011 EA2011000011W WO2013060340A1 WO 2013060340 A1 WO2013060340 A1 WO 2013060340A1 EA 2011000011 W EA2011000011 W EA 2011000011W WO 2013060340 A1 WO2013060340 A1 WO 2013060340A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
geothermal
electrical energy
working fluid
thermosyphon
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/EA2011/000011
Other languages
English (en)
Russian (ru)
Inventor
Сергей Евгеньевич УГЛОВСКИЙ
Рустем Шафагатович ТАХАУТДИНОВ
Рафинат Саматович ЯРУЛЛИН
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/EA2011/000011 priority Critical patent/WO2013060340A1/fr
Publication of WO2013060340A1 publication Critical patent/WO2013060340A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00—Geothermal collectors
    • F24T10/30—Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
    • 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
    • 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
    • F03G4/074—Safety arrangements
    • 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 power engineering, and, in particular, to power machines that convert geothermal thermal energy through the use of phase transitions and / or limiting states of a low boiling liquid (for example, freon) - a working substance (body), a combined U - shaped heat exchange devices with a variable diameter, a throttling device integrated in the lower part, which is an evaporator and condenser of the working fluid, a gas turbogenerator operating in a closed organic Rankine cycle.
  • a low boiling liquid for example, freon
  • body working substance
  • a throttling device integrated in the lower part which is an evaporator and condenser of the working fluid
  • a gas turbogenerator operating in a closed organic Rankine cycle.
  • Energy is generated by direct selection of thermal energy from the geothermal environment of the well by the working substance located in the heat exchanger passing along the entire length of the well, throttling, evaporation and feeding through a heat-insulated pipeline to the turbogenerator.
  • the steam of the working substance worked out in the turbine through the heat exchange part of a pipeline of a larger diameter goes back into the well and giving up heat in the cold upper part of the well condenses under conditions of increasing static pressure with depth.
  • the condensed working substance enters the part of the heat exchanger with a smaller diameter and continues under gravity to move downward with increasing temperature and pressure.
  • Evaporation in the lower part of the newly expanding heat-exchange pipe is accompanied by further heat removal from the geothermal medium and a heated gaseous working substance is fed through the insulated part of the pipeline to the turbine inlet - the cycle closes.
  • this method allows the device to function like a thermosiphon.
  • EFFECT invention makes it possible to create an economical, environmentally safe and durable power plant, rationally and economically use, including out-of-circulation or mothballed oil and gas wells.
  • the type of conversion depends on the state of the medium (steam or water) and its temperature. Power plants with an indirect type of electricity production are by far the most common. They use hot groundwater (temperatures up to 182 ° C) which is pumped at high pressure into the generating sets on the surface. Mixed production geothermal power plants differ from the two previous types of geothermal power plants in that steam and water never come in direct contact with a turbine / generator.
  • the energy efficiency of such devices is relatively small and inferior in efficiency to methods based on low-temperature boiling liquids, since it requires the use of a device for the transformation of thermal energy (refrigerator or heat pump), including a circulation circuit with an evaporator, jet apparatus, cooler (condenser), throttle or expander installed in it in series, and an additional circulation circuit (communications) containing a pump and a high pressure evaporator and connected to the main circuit from the pump side between the cooler and throttle, and from the high-pressure evaporator to the jet apparatus.
  • a circulation circuit with an evaporator, jet apparatus, cooler (condenser), throttle or expander installed in it in series
  • an additional circulation circuit (communications) containing a pump and a high pressure evaporator and connected to the main circuit from the pump side between the cooler and throttle, and from the high-pressure evaporator to the jet apparatus.
  • a known device for converting thermal energy into mechanical and electrical energy is a heat power plant containing a block of a high potential heat source, a closed loop with an intermediate heat carrier, a power turbine, heat exchangers for heating and cooling the working fluid for converting the energy of the liquid and gas phases into mechanical and electrical energy.
  • a heat power plant containing a block of a high potential heat source, a closed loop with an intermediate heat carrier, a power turbine, heat exchangers for heating and cooling the working fluid for converting the energy of the liquid and gas phases into mechanical and electrical energy.
  • the aim of the invention is the creation of a reliable and efficient power plant for converting geothermal thermal energy oil and gas wells through the use of temperature differences along the length of the wells, when the temperature difference (gradient) of the mediums acts on the working fluid (for example, freon), and the use of its phase transitions to aggregate states from liquid to gaseous phases for environmentally friendly conversion of geothermal energy external preset or atmospheric pressure during the transition of the working substance from the gaseous phase to the liquid, using the thermosiphon effect and setting the turbogenerator in motion to convert into electric current current.
  • grade temperature difference
  • freon the working fluid
  • thermosyphon conversion of geothermal thermal energy of oil and gas wells into electrical energy characterized by using the process of the effect of the temperature difference throughout the length of the wellbore on the working substance (for example, freon), and the use of its transitions in aggregate states from liquid to gaseous phases and vice versa for converting the energy of a geothermal medium into kinetic and internal energy of a working stream in society and later in mechanical and electrical energy in the turbogenerator.
  • the device contains: U - shaped heat exchanger (thermosiphon) from heat-conducting pipes with a varying diameter with a built-in diffuser, a heat-insulated part transporting the heated steam phase of the working substance and a turbogenerator and characterized in that it is both an evaporator and a condenser of the working fluid (substance) in a cycle and is closed hermetic circuit (thermosiphon), has an unchanged amount (mass) of the working substance and is a closed (hermetic) volume, which also differs in the absence of by pumps, valves, compressors and separator heaters and other elements characteristic of power plants operating on the organic Rankine cycle.
  • Figure 1 shows a schematic diagram of a device and method for thermosiphon conversion of geothermal thermal energy of oil and gas wells into electrical energy
  • thermosiphon conversion of geothermal thermal energy of oil and gas wells into electrical energy is realized through the use of phase transitions of the working fluid into gas and back into liquid (for example, freon) in a single closed system consisting of an evaporator, a turbogenerator, a condenser and a throttling device with a closed a constant volume located in an oil or gas well and using, as heat absorption by a geothermal medium, the thermal energy of condensation of the working substance for the part of the well and subsequent heating with compression of the liquid phase, as well as the thermal energy of the geothermal medium for heating and evaporation of the working substance with subsequent transportation of the gaseous heated working fluid to the turbogenerator.
  • thermosiphon device for converting geothermal thermal energy of oil and gas wells into electrical energy.
  • the thermal energy of the geothermal medium of the borehole 8 in the evaporation zone 6 is transferred to the liquid working fluid (low-boiling substance) through a U-shaped pipe - the heat exchanger is throttled in the throttle 5, evaporates, warms up and is fed through the transport zone 8 to the steam supply to the turbogenerator 1 where it performs mechanical work ( activates an electric generator) in the adiabatic expansion zone, after which the spent steam in the upper part of the well moves along condensation zone 3, where it transfers cooling heat of condensation to the geothermal medium and e body (substance) goes into the liquid phase.
  • the liquid working fluid low-boiling substance
  • the working fluid moves in the lower part of the wellbore 9 in the compression and heating zone 4, where the liquid phase is heated from the geothermal medium with a rapid increase in pressure in accordance with the increase in the column of the liquid phase of the working substance. Then the working substance again enters the throttling zone (throttle 5) and the cycle repeats
  • thermosiphon evaporator-condenser
  • turbogenerator allows you to convert the kinetic and internal energy of the working fluid (substance) into mechanical and electrical energy, as well as the practical absence of wear nodes and mechanisms, high speeds, high exponents specific energy capacity, simplicity, low cost, environmental friendliness, reliability, durability, and independent of the conditions on the ground surface, as well as to receive a renewable source of electric power and stable method and apparatus thermosyphon converting geothermal heat energy of oil and gas wells into electric energy.

Landscapes

  • 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)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne le génie énergétique et peut s'utiliser pour convertir l'énergie de la chaleur géothermique en énergie électrique. L'invention vise une plus grande efficacité de conversion de l'énergie en énergie électrique grâce à l'utilisation de la différence de températures sur la longueur du puits de forage géothermique. Pour trouver une solution au problème posé on propose un dispositif et un procédé relatifs à un convertisseur à siphon thermique dont le fonctionnement comprend le réchauffement et le refroidissement de l'énergie de ce fluide en énergie mécanique et électrique dans une turbo-génératrice, le fluide de travail se déplaçant dans un circuit fermé formé par le siphon thermique de canalisation. Le siphon thermique a la forme en U et possède un diamètre variable des canalisations dont la partie basse température se situe dans la partie supérieure du puits et est reliée à la partie d'évaporation se trouvant dans la zone d'un milieu géothermique haute température et relié à la turbo-génératrice produisant du courant électrique.
PCT/EA2011/000011 2011-10-25 2011-10-25 Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique Ceased WO2013060340A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EA2011/000011 WO2013060340A1 (fr) 2011-10-25 2011-10-25 Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EA2011/000011 WO2013060340A1 (fr) 2011-10-25 2011-10-25 Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique

Publications (1)

Publication Number Publication Date
WO2013060340A1 true WO2013060340A1 (fr) 2013-05-02

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PCT/EA2011/000011 Ceased WO2013060340A1 (fr) 2011-10-25 2011-10-25 Procédé de conversion de l'énergie géothermique de puits de forage en énergie électrique

Country Status (1)

Country Link
WO (1) WO2013060340A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175092A1 (fr) 2016-04-04 2017-10-12 Pinto Andre Centrale électrique thermique hydroélectrique sous vide
CN108869207A (zh) * 2018-05-28 2018-11-23 中国石油大学(华东) 轴式换热闭式循环井下热电发电系统及方法
CN112901399A (zh) * 2021-01-21 2021-06-04 浙江理工大学 一种重力场介导的做功装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162991C2 (ru) * 1995-06-07 2001-02-10 Джеймс Шнелл Геотермальная система для выработки электроэнергии
RU2261996C1 (ru) * 2003-12-29 2005-10-10 Сташевский Иван Иванович Тепловая электростанция и.и. сташевского
RU2269728C2 (ru) * 2000-10-20 2006-02-10 Хита Аг Способ и система для обмена земной энергией между земными телами и энергообменником, использующим природную тепловую энергию, прежде всего для получения электрического тока
RU2330219C1 (ru) * 2006-12-27 2008-07-27 Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт (технический университет)" (ГОУВПО "МЭИ(ТУ)") Геотермальная установка энергоснабжения потребителей

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2162991C2 (ru) * 1995-06-07 2001-02-10 Джеймс Шнелл Геотермальная система для выработки электроэнергии
RU2269728C2 (ru) * 2000-10-20 2006-02-10 Хита Аг Способ и система для обмена земной энергией между земными телами и энергообменником, использующим природную тепловую энергию, прежде всего для получения электрического тока
RU2261996C1 (ru) * 2003-12-29 2005-10-10 Сташевский Иван Иванович Тепловая электростанция и.и. сташевского
RU2330219C1 (ru) * 2006-12-27 2008-07-27 Государственное образовательное учреждение высшего профессионального образования "Московский энергетический институт (технический университет)" (ГОУВПО "МЭИ(ТУ)") Геотермальная установка энергоснабжения потребителей

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017175092A1 (fr) 2016-04-04 2017-10-12 Pinto Andre Centrale électrique thermique hydroélectrique sous vide
CN108869207A (zh) * 2018-05-28 2018-11-23 中国石油大学(华东) 轴式换热闭式循环井下热电发电系统及方法
CN112901399A (zh) * 2021-01-21 2021-06-04 浙江理工大学 一种重力场介导的做功装置及方法

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