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WO2018119545A1 - 一种大气低温源的利用装置 - Google Patents

一种大气低温源的利用装置 Download PDF

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WO2018119545A1
WO2018119545A1 PCT/CN2016/000719 CN2016000719W WO2018119545A1 WO 2018119545 A1 WO2018119545 A1 WO 2018119545A1 CN 2016000719 W CN2016000719 W CN 2016000719W WO 2018119545 A1 WO2018119545 A1 WO 2018119545A1
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heat exchanger
altitude
adiabatic
airflow
low
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French (fr)
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甄永赞
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North China Electric Power University
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North China Electric Power University
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Priority to PCT/CN2016/000719 priority Critical patent/WO2018119545A1/zh
Publication of WO2018119545A1 publication Critical patent/WO2018119545A1/zh
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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
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
    • F03G7/05—Ocean thermal energy conversion, i.e. OTEC
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention belongs to the technical field of power generation, and particularly relates to a device for utilizing an atmospheric low temperature source.
  • the air is heated up to generate a gas stream that can be used to propel the turbine to generate electricity.
  • Solar chimney power generation is one of the simple structures that adapts to lower heat source temperatures. However, the efficiency is low, and the air contains a small amount of particulate pollutants, which reduces the life of the turbine and limits the flow rate of the airflow.
  • the present invention proposes an apparatus for utilizing an atmospheric low temperature source, including a high heat exchanger and a low heat exchanger, and a descending airflow connecting the high heat exchanger and the low heat exchanger together.
  • Adiabatic duct and updraft adiabatic duct the ambient temperature of the lower heat exchanger is higher than the ambient temperature of the high heat exchanger, and the gas in the lower heat exchanger rises along the rising air duct to the high heat exchanger
  • the post-cooling descends along the downdraft adiabatic conduit to the lower heat exchanger, forming a circulating flow stream and propelling the turbine to generate electricity;
  • the unit mass of the gas in the device is insulated in the ascending airflow adiabatic duct.
  • the temperature value dropped after rising the unit height is lower than the temperature value of the unit mass air outside the rising airflow adiabatic duct at the same altitude after the adiabatic rise unit height; thus, energy can be obtained from the environment to push the turbine to work;
  • the temperature difference between the environment where the low heat exchanger is located and the environment where the heat exchanger is located is higher than the altitude of both
  • the difference in atmospheric convection temperature corresponds to the difference
  • the temperature of the unit mass of gas in the device is increased by the adiabatic rise unit temperature in the ascending airflow adiabatic duct, and the temperature per unit mass of the air outside the rising airflow adiabatic duct at the same altitude is The temperature value dropped after the adiabatic rises the unit height; thus, when the internal gas is air, the amount of heat generated per unit of heat can be increased;
  • the installation position of the high heat exchanger is higher than the sea level
  • the atmospheric temperature of the lower heat exchanger corresponding to the altitude is T 0 -0.0065h, wherein T 0 is Sea level atmospheric temperature, in degrees Celsius, h is the altitude value, in meters, where h is a negative value.
  • the elevation of the high heat exchanger is lower than the corresponding top of the atmospheric troposphere at its location.
  • a portion of the lower end of the downdraft adiabatic conduit is lower than the lower heat exchanger.
  • the descending airflow adiabatic duct and the updraft adiabatic duct, and the high-end heat exchanger adopts a balloon filled with any one of hydrogen gas or helium gas or two gas compositions as a filling to realize lift-off and high-altitude fixing.
  • the airflow can be generated without additional power source; the lower end of the downdraft adiabatic duct is lower than the low heat exchanger, which is beneficial to control the direction of the airflow; the low heat exchanger can also be used as the low temperature source.
  • the present invention can increase the amount of heat generation per unit of heat with respect to the circulating medium being air.
  • Figure 1 is a schematic view of a circulating gas flow generating device of the present invention.
  • the apparatus includes a high heat exchanger and a low heat exchanger, and a downflow adiabatic duct and an updraft adiabatic duct connecting the high heat exchanger and the low heat exchanger, low Heat exchange
  • the ambient temperature of the device is higher than the ambient temperature of the heat exchanger at the high point.
  • the gas in the lower heat exchanger rises along the rising airflow adiabatic pipe to the high heat exchanger and then cools down to the lower part along the descending airflow adiabatic conduit.
  • a heat exchanger that forms a circulating flow of gas and drives the turbine to generate electricity;
  • the gas in the device is hydrogen.
  • the air pressure in the lower heat exchanger is the same as the ambient air pressure.
  • the low heat exchanger is located at the tropical sea.
  • the high heat exchanger is located in the atmosphere at 1500 meters above the lower heat exchanger. This absorbs heat from the seawater and creates a circulating airflow that pushes the turbine to do work.
  • the apparatus includes a high heat exchanger and a low heat exchanger, and a downflow adiabatic duct and an updraft adiabatic duct connecting the high heat exchanger and the low heat exchanger, low
  • the ambient temperature of the heat exchanger is higher than the ambient temperature of the high heat exchanger, and the gas in the lower heat exchanger rises along the rising airflow adiabatic conduit to the high heat exchanger and then cools down along the descending airflow adiabatic conduit.
  • a circulating flow of air is formed and the turbine is driven to generate electricity.
  • the gas in the device is helium
  • the helium gas pressure in the lower heat exchanger is the same as the ambient pressure before the circulating gas flow is formed.
  • the low heat exchanger is located in a solar greenhouse on the ground with a temperature of 200 degrees Celsius.
  • the ambient temperature is 18 degrees Celsius.
  • the high heat exchanger is located in the air 100 meters above the heat exchanger. The amount of heat generated per unit of heat can be increased by using air as the circulating medium.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

一种大气低温源的利用装置，属于发电技术领域，包括高处换热器和低处换热器，以及将高处换热器和低处换热器连接在一起的下降气流绝热导管和上升气流绝热导管，低处换热器所处环境温度高于高处换热器所处环境温度，低处换热器内的气体沿着上升气流绝热导管上升到高处换热器后被冷却，接着沿着下降气流绝热导管下降至低处换热器，形成循环流动气流并推动涡轮机进行发电。当低处换热器和高处换热器所处环境温度差不大于两者的海拔高度差所对应的大气对流温差时，装置内单位质量的气体在上升气流绝热导管内绝热上升单位高度后所下降的温度值要小于处于同样海拔高度的上升气流绝热导管外的单位质量的空气在绝热上升单位高度后所下降的温度值。

Description

一种大气低温源的利用装置 技术领域
本发明属于发电技术领域，特别涉及一种大气低温源的利用装置。
背景技术
在对流层中，空气受热上升可以产生气流，利用这种气流可以用于推动涡轮机发电。
根据涡轮机的发电规律，气流速度越高，则发电功率越高，单位功率成本越低。这样，使用高速气流发电，可以降低涡轮机发电系统的成本。
太阳能烟囱发电是其中一种构造简单，适应于较低的热源温度。但效率较低，而且空气含有少量颗粒污染物等，会降低涡轮机的寿命，气流的流速也受到了限制。
发明内容
针对上述技术问题，本发明提出了一种大气低温源的利用装置，包括高处换热器和低处换热器，以及将高处换热器和低处换热器连接在一起的下降气流绝热导管和上升气流绝热导管，低处换热器所处环境温度高于高处换热器所处环境温度，低处换热器内的气体沿着上升气流绝热导管上升到高处换热器后冷却沿着下降气流绝热导管下降至低处换热器，形成循环流动气流并推动涡轮机进行发电；
当低处换热器所处环境与高处换热器所处环境的温度差不大于两者的海拔高度差所对应的大气对流温差时，装置内单位质量的气体在上升气流绝热导管内绝热上升单位高度后所下降的温度值要小于处于同样海拔高度的上升气流绝热导管外的单位质量的空气在绝热上升单位高度后所下降的温度值；这样可以从环境中获得能量，推动涡轮机做功；
当低处换热器所处环境与高处换热器所处环境的温度差大于两者的海拔高 度差所对应的大气对流温差时，装置内单位质量的气体在上升气流绝热导管内绝热上升单位高度后所下降的温度值要大于处于同样海拔高度的上升气流绝热导管外的单位质量的空气在绝热上升单位高度后所下降的温度值；这样，相对内部气体为空气时，可以提高单位热量的发电量；
所述高处换热器的安装位置高于海平面；
如果所述低处换热器的安装位置处于海水中且低处换热器周围不存在大气，此时设低处换热器对应海拔高度的大气温度为T0-0.0065h，其中T0为海平面大气温度，单位为摄氏度，h为海拔高度值，单位为米，此时h为负值。
所述高处换热器的海拔高度低于其所在位置处对应的大气对流层顶部。
所述下降气流绝热导管下端一部分低于低处换热器。
所述下降气流绝热导管、上升气流绝热导管，高处换热器采用以氢气、氦气中任意一种或两种气体组合物为填充物的气球实现升空和高空固定。
本发明的有益效果在于：
利用地球自然条件，不用额外提供动力源就能实现气流循环发电；下降气流绝热导管下端一部分低于低处换热器，有利于控制气流的方向；也可以将低处换热器作为低温源。
存在额外的热源时，相对于循环介质为空气，本发明可以提高单位热量的发电量。
附图说明
图1为本发明的循环气流产生装置示意图。
具体实施方式
下面结合附图，对实施例作详细说明。
实施例1
如附图1所示，该装置包括高处换热器和低处换热器，以及将高处换热器和低处换热器连接在一起的下降气流绝热导管和上升气流绝热导管，低处换热 器所处环境温度高于高处换热器所处环境温度，低处换热器内的气体沿着上升气流绝热导管上升到高处换热器后冷却沿着下降气流绝热导管下降至低处换热器，形成循环流动气流并推动涡轮机进行发电；
本例中，装置中的气体为氢气。形成循环气流前，低处换热器中气压与周围环境气压相同。低处换热器位于热带海面处。高处换热器位于低处换热器上部1500米处的大气中。这样可以从海水中吸收热量，形成循环气流推动涡轮机做功。
实施例2
如附图1所示，该装置包括高处换热器和低处换热器，以及将高处换热器和低处换热器连接在一起的下降气流绝热导管和上升气流绝热导管，低处换热器所处环境温度高于高处换热器所处环境温度，低处换热器内的气体沿着上升气流绝热导管上升到高处换热器后冷却沿着下降气流绝热导管下降至低处换热器，形成循环流动气流并推动涡轮机进行发电。
本例中，装置中的气体为氙气，形成循环气流前，低处换热器中氙气气压与周围环境气压相同。低处换热器位于地面处太阳能温室中，温室中温度为200摄氏度。周围环境温度为18摄氏度。高处换热器位于换热器上方100米处的空气中。相对于循环介质为空气，可以提高单位热量的发电量。
上述实施例仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (4)

  1. 一种大气低温源的利用装置，其特征在于，包括高处换热器和低处换热器，以及将高处换热器和低处换热器连接在一起的下降气流绝热导管和上升气流绝热导管，低处换热器所处环境温度高于高处换热器所处环境温度，低处换热器内的气体沿着上升气流绝热导管上升到高处换热器后冷却沿着下降气流绝热导管下降至低处换热器，形成循环流动气流并推动涡轮机进行发电；
    当低处换热器所处环境与高处换热器所处环境的温度差不大于两者的海拔高度差所对应的对流层大气温差时，装置内单位质量的气体在上升气流绝热导管内绝热上升单位高度后所下降的温度值要小于处于同样海拔高度的上升气流绝热导管外的单位质量的空气在绝热上升单位高度后所下降的温度值；这样可以从环境中获得能量，推动涡轮机做功；
    当低处换热器所处环境与高处换热器所处环境的温度差大于两者的海拔高度差所对应的对流层大气温差时，装置内单位质量的气体在上升气流绝热导管内绝热上升单位高度后所下降的温度值要大于处于同样海拔高度的上升气流绝热导管外的单位质量的空气在绝热上升单位高度后所下降的温度值；这样，相对内部气体为空气时，可以提高单位热量的发电量；
    所述高处换热器的安装位置高于海平面；
    如果所述低处换热器的安装位置处于海水中且低处换热器周围不存在大气，此时设低处换热器对应海拔高度的大气温度为T0-0.0065h，其中T0为海平面大气温度，单位为摄氏度，h为海拔高度值，单位为米，此时h为负值。
  2. 根据权利要求1所述装置，其特征在于，所述高处换热器的海拔高度低于其所在位置处对应的大气对流层顶部。
  3. 根据权利要求1所述装置，其特征在于，所述下降气流绝热导管下端一 部分低于低处换热器。
  4. 根据权利要求1所述装置，其特征在于，所述下降气流绝热导管、上升气流绝热导管、高处换热器采用以氢气、氦气中任意一种或两种气体组合物为填充物的气球实现树立和高空固定。
PCT/CN2016/000719 2016-12-29 2016-12-29 一种大气低温源的利用装置 Ceased WO2018119545A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101415940A (zh) * 2006-03-31 2009-04-22 克劳斯·沃尔特 用于能量转换的方法、装置和系统
CN201461285U (zh) * 2009-07-17 2010-05-12 甄志宾 温差发电装置
CN102102550A (zh) * 2010-02-09 2011-06-22 淄博绿能化工有限公司 一种新型温差发动机装置
CN102758751A (zh) * 2012-06-05 2012-10-31 张世民 温差发电系统
CN103758717A (zh) * 2013-10-25 2014-04-30 姚彦林 一种温差发电方法和系统
CN104314782A (zh) * 2014-07-29 2015-01-28 王娟 一种南北极地区海水大气温差热能动力装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101415940A (zh) * 2006-03-31 2009-04-22 克劳斯·沃尔特 用于能量转换的方法、装置和系统
CN201461285U (zh) * 2009-07-17 2010-05-12 甄志宾 温差发电装置
CN102102550A (zh) * 2010-02-09 2011-06-22 淄博绿能化工有限公司 一种新型温差发动机装置
CN102758751A (zh) * 2012-06-05 2012-10-31 张世民 温差发电系统
CN103758717A (zh) * 2013-10-25 2014-04-30 姚彦林 一种温差发电方法和系统
CN104314782A (zh) * 2014-07-29 2015-01-28 王娟 一种南北极地区海水大气温差热能动力装置

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