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1. WO2020140406 - GEOTHERMAL ENERGY MINING SYSTEM USING STEPPED GRAVITY-ASSISTED HEAT PIPE HAVING NO ACCUMULATED LIQUID EFFECT

Publication Number WO/2020/140406
Publication Date 09.07.2020
International Application No. PCT/CN2019/092660
International Filing Date 25.06.2019
IPC
F24T 10/40 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
40operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
F28D 15/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
15Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls
02in which the medium condenses and evaporates, e.g. heat-pipes
F28D 15/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
15Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls
02in which the medium condenses and evaporates, e.g. heat-pipes
04with tubes having a capillary structure
CPC
F24T 10/40
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
40operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
Y02E 10/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
10Geothermal energy
Applicants
  • 中国科学院广州能源研究所 GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES [CN]/[CN]
Inventors
  • 蒋方明 JIANG, Fangming
  • 黄文博 HUANG, Wenbo
  • 曹文炅 CAO, Wenjiong
  • 王亦伟 WANG, Yiwei
Agents
  • 广州科粤专利商标代理有限公司 GUANGZHOU KEYUE I.P.LAW OFFICE
Priority Data
201910328413.523.04.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) GEOTHERMAL ENERGY MINING SYSTEM USING STEPPED GRAVITY-ASSISTED HEAT PIPE HAVING NO ACCUMULATED LIQUID EFFECT
(FR) SYSTÈME D'EXTRACTION D'ÉNERGIE GÉOTHERMIQUE UTILISANT UN CALODUC ASSISTÉ PAR GRAVITÉ ÉTAGÉ N'AYANT PAS D'EFFET D'ACCUMULATION DE LIQUIDE
(ZH) 无积液效应的阶梯式重力热管地热开采系统
Abstract
(EN)
A geothermal energy mining system using a stepped gravity-assisted heat pipe having no accumulated liquid effect, comprising a gravity-assisted heat pipe (1), a condenser (2), and a liquid storage tank (3); the gravity-assisted heat pipe (1) comprises a liquid return pipe (7), an outer pipe (8), and an inner pipe (9); the liquid return pipe (7) is disposed between the outer pipe (8) and the inner pipe (9) and is connected to the liquid storage tank (3); the space between the outer pipe (8) and the inner pipe (9) has a stepped separation structure; a liquid working medium flows from the liquid storage tank (3) through the liquid return pipe (7) into different levels of separated segments sequentially, absorbs heat from high-temperature rock mass (6) by means of the pipe wall of the outer pipe (8) and gasifies, becomes a gaseous working medium and enters the inner pipe (9) and then flows into the condenser (2), and releases the heat and condenses then flows back into the liquid storage tank (3), thus completing a cycle. Liquid level control pipes (11) are used to limit the liquid level of each separated segment at a certain height.
(FR)
L'invention concerne un système d'extraction d'énergie géothermique utilisant un caloduc assisté par gravité étagé n'ayant pas d'effet d'accumulation de liquide, comprenant un caloduc assisté par gravité (1), un condenseur (2), et un réservoir de stockage de liquide (3); le caloduc assisté par gravité (1) comprend un tuyau de retour de liquide (7), un tuyau externe (8) et un tuyau interne (9); le tuyau de retour de liquide (7) est disposé entre le tuyau externe (8) et le tuyau interne (9) et est relié au réservoir de stockage de liquide (3); l'espace entre le tuyau externe (8) et le tuyau interne (9) a une structure de séparation étagée; un milieu actif liquide s'écoule depuis le réservoir de stockage de liquide (3) à travers le tuyau de retour de liquide (7) en différents niveaux de segments séparés séquentiellement, absorbe la chaleur provenant de la masse rocheuse à haute température (6) au moyen de la paroi de tuyau du tuyau externe (8) et se gazéifie de manière à devenir un milieu actif gazeux, et pénètre dans le tuyau interne (9) puis s'écoule dans le condenseur (2), puis libère la chaleur et se condense ensuite en retour dans le réservoir de stockage de liquide (3), achevant ainsi un cycle. Des tuyaux de commande de niveau de liquide (11) sont utilisés pour limiter le niveau de liquide de chaque segment séparé à une certaine hauteur.
(ZH)
一种无积液效应的阶梯式重力热管地热开采系统,包括重力热管(1)、冷凝器(2)和蓄液箱(3),重力热管(1)包括回液管(7)、外管(8)、内管(9),回液管(7)位于外管(8)与内管(9)的间隙中并与蓄液箱(3)相连,外管(8)与内管(9)的间隙采用阶梯式分隔结构,液态工质通过回液管(7)从蓄液箱(3)中依次流入各级分隔区段,并透过外管(8)管壁从高温岩体(6)中吸热气化,变为气态工质之后再进入内管(9)并流入冷凝器(2),放热冷凝之后重新流入蓄液箱(3)中进行循环,通过液位控制管(11)将每个分隔区段的液位限制在一定高度。
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