WO2018072286A1 - 一种地下煤火热能提取温差发电系统 - Google Patents

一种地下煤火热能提取温差发电系统 Download PDF

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Publication number
WO2018072286A1
WO2018072286A1 PCT/CN2016/109811 CN2016109811W WO2018072286A1 WO 2018072286 A1 WO2018072286 A1 WO 2018072286A1 CN 2016109811 W CN2016109811 W CN 2016109811W WO 2018072286 A1 WO2018072286 A1 WO 2018072286A1
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power generation
heat
underground
thermoelectric power
coal
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French (fr)
Inventor
周福宝
苏贺涛
史波波
齐海宁
李金石
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology CUMT
China University of Mining and Technology Beijing CUMTB
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Priority to AU2016409527A priority Critical patent/AU2016409527B1/en
Priority to RU2017140666A priority patent/RU2696601C1/ru
Priority to US15/735,598 priority patent/US20200036303A1/en
Priority to DE112016004759.2T priority patent/DE112016004759T5/de
Publication of WO2018072286A1 publication Critical patent/WO2018072286A1/zh
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    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/32—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
    • H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
    • H10N10/13—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the heat-exchanging means at the junction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

Definitions

  • the invention belongs to the technical field of heat energy recovery in coal field fire area, and specifically relates to a new type of underground coal fire energy extraction temperature difference power generation system.
  • Subsurface fire is a general term for coal field fires and mine fires formed by coal mines due to human factors or spontaneous combustion.
  • underground coal fires 1 lost a lot of coal resources (about 1 billion tons / year globally, and the current world coal consumption of 8 billion tons / year); Threatening mining safety (collapse and burnout areas formed by underground coal fire combustion, seriously affecting the mining process and mining safety of raw coal, causing resource blockage and even causing mine disasters); 3 wasting a lot of energy (the energy generated by underground coal fire combustion is about 1000GW/year, exceeding the world's total nuclear power capacity of 400GW/year); 4 destroying the ecological environment (CO2 generated by underground coal fires accounts for 10% of the world's CO2 emissions per year.
  • a series of related diseases such as heart disease; long-term accumulation of harmful chemicals released into the air, such as heavy metals and sulfides such as mercury and selenium, PM2.5, polluted air, land and water sources).
  • the existing coal fire prevention and control technology mostly uses grouting or liquid nitrogen to extinguish the fire, preventing the spread of coal fire, but can not block the energy accumulation of underground coal fire, and most of them are not cured by the symptoms. effect.
  • the invention extracts the thermal energy of underground coal to generate electricity, not only blocks the spread of coal fire, but also utilizes the energy accumulated by the underground coal fire, completely blocks the conditions for the formation of coal fire, and the economic and environmental benefits are obvious and significant.
  • the object of the present invention is to provide a new type of underground coal fire energy extraction temperature difference power generation system for coal mine underground coal fire coal resource waste, polluting the environment, etc., to realize the recovery and utilization of coal field thermal energy resources in coal field, and solve the environmental pollution problem in the fire area. .
  • the technical solution provided by the present invention is: a new type of underground coal thermal energy extraction temperature difference power generation system, including coal The field fire area, the coal field drilled in the coal field fire area, the underground coal mine borehole is provided with a bottom closed underground heat conduction pipeline, and one end of the underground heat conduction pipeline is located at the other end of the underground heat extraction.
  • thermoelectric power generation chip set for generating electric quantity
  • storage battery for storing the electric quantity and the thermoelectric power generation chip set
  • the present invention has the following beneficial effects: in the present invention, the thermoelectric power generation chip set is directly attached to the heat conductive container, the structure is simple, no unnecessary components are required, and the heat transfer efficiency is high, and the thermoelectric power generation chip set is adopted.
  • the patch type, the outermost layer is a cold-end heat pipe, which increases the contact area between the heat medium, the refrigerant and the thermoelectric power generation chip group, and can efficiently utilize the thermal energy of the underground coal fire; the temperature difference power generation system has a simple process and can well adapt to the coal field fire.
  • the engineering work environment of the district is a cold-end heat pipe, which increases the contact area between the heat medium, the refrigerant and the thermoelectric power generation chip group, and can efficiently utilize the thermal energy of the underground coal fire; the temperature difference power generation system has a simple process and can well adapt to the coal field fire.
  • thermoelectric power generation chip set adopts a patch type, and the outermost layer is a cold-end heat pipe, which increases the contact area between the heat medium, the refrigerant and the thermoelectric power generation chip group, and can efficiently utilize the thermal energy of the underground coal fire;
  • the thermoelectric power generation system is simple in process and can be well adapted to the engineering working environment of the coal field fire zone.
  • the cooling water radiator designed with multi-circuit curved heat sink can increase the cooling water area of the cold water, accelerate heat dissipation and improve power generation efficiency.
  • the number of the underground heat-conducting pipes is at least two and are connected to the heat-conducting container.
  • the coal-field drilling holes are five, and five underground heat-conducting pipes are provided, and the underground heat-conducting pipes include A main heat-conducting pipeline in the middle and four auxiliary heat-conducting pipelines distributed evenly around, there are 5 coalfield drill holes deep into the coalfield fire zone, and 5 underground heat-conducting pipelines can be installed to extract more coal-fire heat energy. It increases the extraction efficiency of coal fire energy and increases the power generation.
  • the main heat conduction pipeline is a long pipeline
  • the auxiliary heat conduction pipeline is a short pipeline.
  • the main heat conduction pipeline can be used for grouting fire extinguishing and sealing of underground coal fire after coal fire heat utilization is completed, and four auxiliary heat conduction.
  • the pipeline can be blocked afterwards, and the five heat-conducting pipelines increase the flow rate of the heat medium, speed up the utilization of underground heat energy, and improve the power generation efficiency.
  • the pressure relief device is an automatic pressure relief device, which comprises a pressure sensor and an automatic pressure relief valve for measuring the heat conduction container, and the automatic pressure relief valve automatically releases pressure when the pressure inside the container is too large.
  • the heat conduction container, the underground heat conduction pipe and the thermoelectric power generation chip group constitute a hot end module
  • the cold end heat pipe, the thermoelectric power generation chip group, the radiator and the pump constitute a cold end module
  • the thermoelectric power generation module The contact area of the heat medium, the refrigerant and the thermoelectric power generation chip group is large, the heat conduction at the hot end is rapid, the cold end temperature is obvious, and the coal fire heat energy extraction efficiency is high.
  • the side wall of the heat-conducting container is a concave or convex structure, and the heat-conducting container has a cross-shaped structure as a whole.
  • the structure increases the contact area between the thermoelectric power generation chip set and the heat-conducting container, and the coal fire heat energy extraction efficiency is high.
  • the pump is a pump capable of adjusting the flow rate.
  • the flow rate of the refrigerant can be adjusted according to the temperature of the heat-conducting container, and the power generation efficiency of the thermoelectric power generation module can be improved.
  • the pipeline in the cooling water radiator has a multi-circuit bending design, which can increase the heat dissipation area of the cold water and accelerate the heat dissipation. High power generation efficiency.
  • thermoelectric power generation chip set is covered in a series and parallel combination on the surface of the heat conductive container.
  • FIG. 1 is a schematic structural view of a novel underground coal fire energy extraction temperature difference power generation system according to the present invention.
  • FIG. 2 is a top plan view of a novel underground coal fire energy extraction temperature difference power generation system of the present invention.
  • thermoelectric power generation chip set of a novel underground coal fire energy extraction temperature difference power generation system according to the present invention.
  • coal field fire area 1, coal field drilling, 3, underground heat conduction pipeline, 3.1, main heat conduction pipeline, 3.2, auxiliary heat conduction pipeline, 4, heat conduction container, 5, pressure relief device, 6 , thermoelectric power generation chip set, 7, battery, 8, cold-end heat pipe, 9, radiator, 10, pump, 11, battery electrode.
  • a new type of underground coal fire energy extraction thermoelectric power generation system includes a coal field fire zone 1, a coalfield borehole 2 disposed in the coalfield fire zone 1, and the coalfield borehole 2 is provided with a bottom closed underground heat conduction.
  • one end of the underground heat-conducting pipeline 3 is located at the other end of the underground heat-collecting heat-conducting container 4, and the heat-conducting container 4 is provided with a pressure-relieving device 5, and a temperature difference generating power generating unit 6 for generating electric quantity.
  • thermoelectric power generation chip group 6 is disposed on the outer side wall of the heat conduction container 4, and the outer side of the temperature difference power generation chip group 6 is provided with a cold end heat pipe 8.
  • the thermoelectric power generation chip group 6 is located between the heat conduction container 4 and the cold end heat pipe 8, and the heat dissipation heat pipe 8 is connected to the heat sink 9 and the pump 10 for heat dissipation.
  • the number of the underground heat-conducting pipes 3 is at least two and are connected to the heat-conducting container 4.
  • the underground heat conduction pipe 3 includes a main heat conduction pipe 3.1 in the middle and four auxiliary heat pipes uniformly distributed around. Road 3.2.
  • the main heat conduction pipeline 3.1 is a long pipeline
  • the auxiliary heat conduction pipeline 3.2 is a short pipeline.
  • the pressure relief device 5 is an automatic pressure relief device including a pressure sensor and an automatic pressure relief valve for measuring the heat transfer container 4.
  • the heat-conducting container 4, the underground heat-conducting pipe 3 and the thermoelectric power generation chip group 6 constitute a hot-end module
  • the cold-end heat pipe 8, the thermoelectric power generation chip group 6, the heat sink 9, and the pump 10 constitute a cold-end module.
  • the side wall of the heat-conducting container 4 is a concave or convex structure, and the heat-conductive container 4 has a cross-shaped structure as a whole.
  • the pump 10 is a pump that can adjust the flow rate.
  • the pipeline in the cooling water radiator 9 has a multi-circuit bending design.
  • thermoelectric power generation chip group 6 is covered in a series and parallel connection on the surface of the heat conduction container 4.
  • the present invention utilizes five coal fields deep into the coal field to install an underground heat-conducting pipeline.
  • the upper part of the underground heat-conducting pipeline is provided with a high-efficiency heat-conducting container, a heat medium is injected into the container, and the heat medium passes through the underground heat pipe.
  • the road deeply absorbs underground coal fire heat, and brings heat to the high-efficiency heat-conducting container through heat convection to heat the heat medium in the container.
  • the hot end of the thermoelectric power generation chip group is heated by the heat medium in the high efficiency heat conduction container.
  • the cold end is cooled by a cold end module composed of a cooling water radiator, a water pump, a cold end heat pipe and a thermoelectric power generation chip set.
  • the electrical energy output by the thermoelectric power generation chip set is stored in the battery.
  • the device of the invention can be arranged in the fire area of the coal field to recover heat.
  • the structure of the system is simple and practical, and is suitable for the engineering working environment, and uses the underground thermal energy of the coal field fire area to generate electricity, thereby avoiding the spread of coal fire and the loss of coal resources. Economic and environmental benefits are significant and significant.

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Abstract

一种地下煤火热能提取温差发电系统，包括煤田火区(1)、煤田钻孔(2)、地下导热管路(3)、导热容器(4)，导热容器(4)上设有泄压装置(5)，还包括温差发电片组(6)和蓄电池(7)，所述的温差发电片组(6)设置在导热容器(4)的外侧壁上，所述的温差发电片组(6)的外侧设有冷端散热管(8)，温差发电片组(6)位于导热容器(4)和冷端散热管(8)之间，所述的冷端散热管(8)上连接设有起散热作用的散热器(9)和泵(10)。

Description

一种新型地下煤火热能提取温差发电系统 技术领域
本发明属于煤田火区热能回收技术领域，具体是指一种新型地下煤火热能提取温差发电系统。
背景技术
地下煤火(Subsurface fire)是煤矿层由于人为因素或自燃形成的煤田火和矿井火的统称。在中国、美国、澳大利亚、印度、印尼等国普遍发生，地下煤火：①损失了大量的煤炭资源(全球约损失10亿吨/年，而当前世界煤炭消费量80亿吨/年)；②威胁采矿安全(地下煤火燃烧形成的塌陷与烧空区，严重影响原煤的开采进程与采矿安全，造成资源的阻滞甚至引发矿难)；③浪费大量能源(地下煤火燃烧的产生的能量约为1000GW/年，超过世界核电总容量400GW/年)；④破坏生态环境(每年地下煤火产生的CO2占世界CO2排放量的10％。煤火严重危及人类健康，造成呼吸系统疾病、皮肤癌、心脏病等一系列相关疾病；向空气中释放的有害化学物质长期积聚，如汞、硒等重金属和硫化物、PM2.5，污染空气、土地和水源)。
煤田火区对环境的影响不容忽视，造成了严重的①大气污染，向大气排放大量热量、有毒有害气体和温室气体；②水源污染，火区燃烧产生酸碱性化合物随着基岩裂隙水在山谷口、陡崖、陡坎处以泉水和矿井水等形式排除地表，或地下水不断运移；③地表植被破坏，火区地表温度急剧上升，破坏土壤原有的物理结构和性质，同时火区地表析出的硫酸盐和硫磺使土壤酸性增加，含硫量增高，植被无法生存；④潜在的地质灾害，浅部煤层和井下浮煤、煤柱等燃烧后形成烧空区，改变了煤层顶板及围岩的平衡状态，导致地面出现大量的燃烧裂隙、塌陷坑等，同时又为煤层燃烧提供了供氧通道，形成了“燃烧—塌陷—燃烧”的恶性循环，另外地表水土保持能力大幅下降，极易引起泥石流、滑坡等地质灾害。
尽管我国在煤火的研究领域已经取得长足的进步，获得了一批原创性的成果，但是在煤火基础理论研究、煤火控制等方面与澳大利亚、美国等发达国家相比，尚有较大的提升空间；另一方面来说，随着煤田火区的动态发展，部分地区的煤田火区规模和范围还在扩大，燃烧面积和规模仍在增加，现有的防灭火理论、技术及装备不能完全适应地下煤火的发展。综上所述，亟需国家在煤火防治方面加强持续投入与布局，实现煤火的高效防治与热能资源的有效利用。现有的煤火防治技术多是利用注浆或注液氮的方式进行灭火，阻止煤火的蔓延，但不能阻断地下煤火的能量积聚，多是治标不治本，起不到很好的效果。本发明将地下煤火热能提取发电，不但阻断了煤火的蔓延，而且将地下煤火积聚的能量加以利用，彻底阻断了煤火形成的条件，而且经济与环境效益明显，意义重大。
发明内容
本发明目的是，对于煤田地下煤火煤炭资源浪费、污染环境等问题，提供一种新型地下煤火热能提取温差发电系统，实现煤田地下煤火热能资源的回收利用，同时解决火区环境污染问题。
为解决上述技术问题，本发明提供的技术方案为：一种新型地下煤火热能提取温差发电系统，包括煤 田火区、设置在煤田火区上的煤田钻孔，所述的煤田钻孔内设有底部封闭的地下导热管路，所述的地下导热管路一端位于地下吸取热量另一端设有相通的导热容器，导热容器上设有泄压装置，还包括用于产生电量的温差发电片组和用于储存电量与温差发电片组连接的蓄电池，所述的温差发电片组设置在导热容器的外侧壁上，所述的温差发电片组的外侧设有冷端散热管，温差发电片组位于导热容器和冷端散热管之间，所述的冷端散热管上连接设有起散热作用的散热器和泵。
本发明与现有技术相比，本发明具有以下有益效果：本发明中温差发电片组是直接贴合在导热容器上，结构简单不需要多余的部件而且传热效率高，温差发电片组采用贴片式，最外层为冷端散热管，增加了热媒、冷媒与温差发电片组的接触面积，能够高效利用地下煤火的热能；温差发电系统工艺简单，能够很好的适应煤田火区的工程作业环境。
设有深入煤田火区的5个煤田钻孔，可以安装5个地下导热管路，可以提取更多的煤火热能，增大了对煤火热能的提取效率，提高了发电量；采用了高效率导热容器来保存热媒，温差发电片组采用贴片式，最外层为冷端散热管，增加了热媒、冷媒与温差发电片组的接触面积，能够高效利用地下煤火的热能；温差发电系统工艺简单，能够很好的适应煤田火区的工程作业环境；采用设计有多回路弯曲散热片的冷却水散热器，可以增大冷水的散热面积，加快散热，提高发电效率。
作为改进，所述地下导热管路的个数至少为两个且均与导热容器连接，所述的煤田钻孔有5个，设有5个地下导热管路，所述的地下导热管路包括一个位于中间的主要导热管路和四个均匀分布在四周的辅助导热管路，有深入煤田火区的5个煤田钻孔，可以安装5个地下导热管路，可以提取更多的煤火热能，增大了对煤火热能的提取效率，提高了发电量。
作为改进，所述的主要导热管路为长管路，辅助导热管路为短管路，主要导热管路可用于煤火热能利用完毕后地下煤火的注浆灭火封堵，四个辅助导热管路事后封堵即可，5个导热管路加大了热媒的流量，加快了地下热能利用速度，提高了发电效率。
作为改进，所述的泄压装置为自动泄压装置，包括用于测量导热容器内的压力传感器和自动泄压阀，当容器内压力过大时自动泄压阀自动泄压。
作为改进，所述的导热容器、地下导热管路和温差发电片组构成热端模块，所述的冷端散热管、温差发电片组、散热器和泵构成冷端模块，此种温差发电模块热媒、冷媒与温差发电片组接触面积大，热端导热迅速，冷端降温明显，煤火热能提取效率高。
作为改进，所述导热容器的侧壁为内凹或外凸结构，导热容器整体呈十字型结构，此种结构增大了温差发电片组与导热容器的接触面积，煤火热能提取效率高。
作为改进，所述的泵为可调节流量大小的泵，在具体使用时可根据导热容器的温度来调节冷媒的流量，提高温差发电模块的发电效率。
作为改进，所述的冷却水散热器中管路为多回路弯曲设计，可以增大冷水的散热面积，加快散热，提 高发电效率。
作为改进，所述的温差发电片组覆盖在导热容器表面串并联结合组成。
附图说明
图1是本发明一种新型地下煤火热能提取温差发电系统的结构示意图。
图2是本发明一种新型地下煤火热能提取温差发电系统的俯视图。
图3是本发明一种新型地下煤火热能提取温差发电系统的温差发电片组的结构示意图。
如图所示：1、煤田火区，2、煤田钻孔，3、地下导热管路，3.1、主要导热管路，3.2、辅助导热管路，4、导热容器，5、泄压装置，6、温差发电片组，7、蓄电池，8、冷端散热管，9、散热器，10、泵，11、蓄电池电极。
具体实施方式
下面结合附图对本发明做进一步的详细说明。
结合附图，一种新型地下煤火热能提取温差发电系统，包括煤田火区1、设置在煤田火区1上的煤田钻孔2，所述的煤田钻孔2内设有底部封闭的地下导热管路3，所述的地下导热管路3一端位于地下吸取热量另一端设有相通的导热容器4，导热容器4上设有泄压装置5，还包括用于产生电量的温差发电片组6和用于储存电量与温差发电片组6连接的蓄电池7，所述的温差发电片组6设置在导热容器4的外侧壁上，所述的温差发电片组6的外侧设有冷端散热管8，温差发电片组6位于导热容器4和冷端散热管8之间，所述的冷端散热管8上连接设有起散热作用的散热器9和泵10。
所述地下导热管路3的个数至少为两个且均与导热容器4连接。
所述的煤田钻孔2有5个，设有5个地下导热管路3，所述的地下导热管路3包括一个位于中间的主要导热管路3.1和四个均匀分布在四周的辅助导热管路3.2。
所述的主要导热管路3.1为长管路，辅助导热管路3.2为短管路。
所述的泄压装置5为自动泄压装置，包括用于测量导热容器4内的压力传感器和自动泄压阀。
所述的导热容器4、地下导热管路3和温差发电片组6构成热端模块，所述的冷端散热管8、温差发电片组6、散热器9和泵10构成冷端模块。
所述导热容器4的侧壁为内凹或外凸结构，导热容器4整体呈十字型结构。
所述的泵10为可调节流量大小的泵。
所述的冷却水散热器9中管路为多回路弯曲设计。
所述的温差发电片组6覆盖在导热容器4表面串并联结合组成。
在具体实施例中，本发明利用深入煤田的5个煤田钻孔安装地下导热管路，地下导热管路的上部设有联通有高效率导热容器，容器内注入热媒，热媒通过地下导热管路深入地下吸收地下煤火热量，通过热对流将热量带到高效率导热容器，使容器内的热媒升温。温差发电片组热端由高效率导热容器中的热媒供热， 冷端则由冷却水散热器、水泵、冷端散热管和温差发电片组构成的冷端模块散热。温差发电片组输出的电能储存在蓄电池中。
本发明的装置可在煤田火区上设置多个用以回收热量，本系统结构简单实用，适用于工程作业环境，利用煤田火区的地下热能进行发电，避免了煤火蔓延和煤炭资源损失，经济与环境效益明显，意义重大。
以上对本发明及其实施方式进行了描述，这种描述没有限制性，附图中所示的也只是本发明的实施方式之一，实际的结构并不局限于此。总而言之如果本领域的普通技术人员受其启示，在不脱离本发明创造宗旨的情况下，不经创造性的设计出与该技术方案相似的结构方式及实施例，均应属于本发明的保护范围。

Claims (10)

  1. 一种新型地下煤火热能提取温差发电系统，包括煤田火区(1)、设置在煤田火区(1)上的煤田钻孔(2)，所述的煤田钻孔(2)内设有底部封闭的地下导热管路(3)，所述的地下导热管路(3)一端位于地下吸取热量另一端设有相通的导热容器(4)，导热容器(4)上设有泄压装置(5)，还包括用于产生电量的温差发电片组(6)和用于储存电量与温差发电片组(6)连接的蓄电池(7)，其特征在于：所述的温差发电片组(6)设置在导热容器(4)的外侧壁上，所述的温差发电片组(6)的外侧设有冷端散热管(8)，温差发电片组(6)位于导热容器(4)和冷端散热管(8)之间，所述的冷端散热管(8)上连接设有起散热作用的散热器(9)和泵(10)。
  2. 根据权利要求1所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述地下导热管路(3)的个数至少为两个且均与导热容器(4)连接。
  3. 根据权利要求2所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的煤田钻孔(2)有5个，设有5个地下导热管路(3)，所述的地下导热管路(3)包括一个位于中间的主要导热管路(3.1)和四个均匀分布在四周的辅助导热管路(3.2)。
  4. 根据权利要求3所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的主要导热管路(3.1)为长管路，辅助导热管路(3.2)为短管路。
  5. 根据权利要求1所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的泄压装置(5)为自动泄压装置，包括用于测量导热容器(4)内的压力传感器和自动泄压阀。
  6. 根据权利要求1所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的导热容器(4)、地下导热管路(3)和温差发电片组(6)构成热端模块，所述的冷端散热管(8)、温差发电片组(6)、散热器(9)和泵(10)构成冷端模块。
  7. 根据权利要求1-6任意一项所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述导热容器(4)的侧壁为内凹或外凸结构，导热容器(4)整体呈十字型结构。
  8. 根据权利要求1-6任意一项所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的泵(10)为可调节流量大小的泵。
  9. 根据权利要求1-6任意一项所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的冷却水散热器(9)中管路为多回路弯曲设计。
  10. 根据权利要求1-6任意一项所述的一种新型地下煤火热能提取温差发电系统，其特征在于：所述的温差发电片组(6)覆盖在导热容器(4)表面串并联结合组成。
PCT/CN2016/109811 2016-10-17 2016-12-14 一种地下煤火热能提取温差发电系统 Ceased WO2018072286A1 (zh)

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