WO2022111428A1 - 一种热管换热器及其安装方法 - Google Patents

一种热管换热器及其安装方法 Download PDF

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WO2022111428A1
WO2022111428A1 PCT/CN2021/132229 CN2021132229W WO2022111428A1 WO 2022111428 A1 WO2022111428 A1 WO 2022111428A1 CN 2021132229 W CN2021132229 W CN 2021132229W WO 2022111428 A1 WO2022111428 A1 WO 2022111428A1
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section
pipe
heat
heat exchanger
spent fuel
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English (en)
French (fr)
Inventor
邢继
李海涛
刘天斌
和丹
王晓和
赵英昆
刘迎
陈科
徐岚
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China Nuclear Power Engineering Co Ltd
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China Nuclear Power Engineering Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the invention relates to the technical field of passive safety equipment in nuclear power plants, in particular to a heat pipe heat exchanger used for passive waste heat extraction in spent fuel pools and an installation method thereof.
  • the heat transfer from the spent fuel pool of the nuclear power plant is realized by pumping the water in the spent fuel pool through the shell-and-tube heat exchanger to transfer the heat to the chilled water system.
  • Heat pipe heat exchangers have the advantages of high heat transfer efficiency, small pressure loss, stable and reliable operation, compact structure and effective isolation of primary and secondary fluids, and have been widely used in many industrial fields.
  • the core component of the heat pipe heat exchanger is the heat pipe.
  • the heat pipe is a typical passive heat exchange element.
  • the heat transfer mainly depends on the vapor and liquid phase of the working medium. /(m ⁇ °C) order, while the thermal conductivity of copper, silver and other materials can only reach the order of 10 2 W/(m ⁇ °C).
  • the purpose of the present invention is to provide a heat pipe heat exchanger that can solve these problems and an installation method thereof, so that the heat pipe heat exchanger can export the waste heat of the spent fuel pool under normal operation and accident conditions of the spent fuel pool.
  • a heat pipe heat exchanger the heat pipe heat exchanger comprises: an evaporation section configured to absorb heat from a spent fuel pool to evaporate a working medium; a collection section, the connection between the collection section and the evaporation section is One end is connected; a connecting pipe, one end of the connecting pipe is connected with the collecting section; and a condensing section, the condensing section is configured to condense the evaporated working medium, one end of the condensing section is connected with the other end of the connecting pipe connected, and the other end of the condensation section is connected to the evaporation section through a return pipe.
  • the return pipe may be connected to the evaporation section through the collection section.
  • the diameter of the connecting pipe may be larger than the diameter of the return pipe.
  • the evaporation section may be mounted on the outer surface of the pool wall of the spent fuel pool.
  • the evaporation section may be integral with the pool wall of the spent fuel pool.
  • the evaporation section may be disposed on a grid within the spent fuel pool.
  • the evaporation section may be integral with the lattice within the spent fuel pool.
  • the evaporation section can be designed with a modular structure.
  • the connecting pipe and the return pipe may be arranged in the same pipe.
  • the exterior of the condensation section may be provided with fins.
  • a porous body may be provided in the return pipe.
  • the collecting section can also be used as a distributor, so that the condensed medium in the return pipe is evenly distributed into each heat pipe through the distributor.
  • a method of installing a heat pipe heat exchanger comprising the steps of: providing an evaporation section to absorb heat from a spent fuel pool; providing a collection section and connecting one end of the evaporation section to the collection section; One end of the connecting pipe is connected to the collecting section; and one end of the condensing section is connected to the other end of the connecting pipe, and the other end of the condensing section is connected to the evaporation section through a return pipe.
  • FIG. 1 is a schematic diagram of the basic operating principle of a heat pipe heat exchanger used for passive waste heat transfer in a spent fuel pool according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view of a heat pipe heat exchanger used for passive waste heat transfer in a spent fuel pool according to an embodiment of the present invention.
  • 1-evaporating section 2-connecting pipe, 3-building, 4-condensing section, 5-return pipe, 6-spent fuel pool, 7-grid, 8-collecting section.
  • the figure schematically shows the basic operation principle of a heat pipe heat exchanger used for passive waste heat transfer in a spent fuel pool;
  • the heat pipe heat exchanger includes a heat exchanger body, and the heat exchanger body includes Evaporation section 1, connecting pipe 2, condensation section 4 and return pipe 5.
  • the evaporation section 1 is arranged in the spent fuel pool 6 .
  • One end of the evaporation section 1 is connected with the connecting pipe 2 .
  • the connecting pipe 2 is connected to one end of the condensation section 4 through the building 3
  • the other end of the condensation section 4 is connected to the other end of the evaporation section 1 through the return pipe 5 .
  • the evaporation section 1 has the function of absorbing heat from the spent fuel pool 6 to evaporate the working medium to generate steam.
  • the vapor generated in the evaporation section 1 is sent to the condensation section 4 through the connecting pipe 2 .
  • the condensation section 4 has the function of condensing the vapor of the working medium.
  • the liquefied working medium is sent to the evaporation section 1 through the return pipe 5 .
  • a medium with high vapor pressure and high latent heat of vaporization may be used as the working medium.
  • ammonia, water, chlorofluorocarbons, alcohols, acetone, etc. can be used as the working medium.
  • the evaporation section 1 absorbs heat in the spent fuel pool to evaporate the working medium in the evaporation section 1 to generate steam, and the produced steam overcomes the pipeline resistance and/or gravity and moves along the connecting pipe 2 to reach the outdoor condensation.
  • Section 4 exchange heat with air and condense, and the condensed medium (such as water and other fluids) flows back to the evaporation section 1 through the return pipe 5 under the action of gravity or capillary force, and circulates the waste heat of the spent fuel pool 6 to the outside of the building.
  • the water in the spent fuel pool 6 meets the system requirements and ensures the safety of the spent fuel pool 6 .
  • FIG. 2 this figure shows an embodiment of the heat pipe heat exchanger for passive waste heat transfer of spent fuel pools of the present invention.
  • the heat pipe heat exchanger includes an evaporation section 1 , a collecting section 8 , a connecting pipe 2 , a condensation section 4 and a return pipe 5 .
  • the evaporation section 1 may be arranged in the spent fuel pool 6 .
  • the evaporation section 1 may also be arranged on the outer surface of the pool wall of the spent fuel pool 6 .
  • One end of the evaporation section 1 is connected to the collecting section 8 .
  • One end of the connecting pipe 2 is connected to the collecting section 8 , so that the medium evaporated in the evaporation section 1 is collected to the connecting pipe 2 through the collecting section 8 during operation.
  • the collecting section 8 by using the collecting section 8, the number and volume of pipelines are reduced, and the integration degree of the system is improved, thereby ensuring that the heat pipe heat exchanger does not interfere with other devices.
  • the connecting pipe 2 is connected to one end of the condensation section 4 through the building 3 , and the other end of the condensation section 4 is connected to the evaporation section 1 through the return pipe 5 .
  • the return line 5 is connected to the plurality of evaporation sections 1 via the collecting section 8 .
  • the heat pipe heat exchanger used for the passive waste heat export of the spent fuel pool absorbs the heat in the spent fuel pool 6 through the evaporation section 1, so that the working medium in the evaporation section 1 is evaporated to generate steam, and the generated steam It is collected into the connecting pipe 2 through the collecting section 8, overcomes the resistance of the pipe and/or gravity, moves along the connecting pipe 2, reaches the outdoor condensation section 4, and then exchanges heat with the air to condense, and the condensed medium acts under the action of gravity or capillary force It passes through the return pipe 5 to the collection section 8, and flows back to the evaporation section 1 through the collection section 8, and circulates in sequence to transfer the waste heat of the spent fuel pool to the atmosphere outside the building, so that the water temperature of the spent fuel pool meets the requirements and ensures that Safety of spent fuel pools.
  • the installation position of the condensation section 4 may be higher than the installation position of the evaporation section 1 .
  • the above-described circulation of the working medium can be achieved by means of gravity.
  • the installation position of the condensation section 4 may not be higher than the installation position of the evaporation section 1; in some embodiments, the condensation section 4 may have many curved parts so that the working medium cannot be circulated by gravity.
  • a porous body (not shown in the figure) extending from the condensation section 4 to the evaporation section 1 along the length direction of the return pipe 5 may be provided in the return pipe 5 .
  • the porous body promotes the condensed (liquefied) working medium in the condensation section 4 to be guided to the evaporation section 1 by the capillary force it generates.
  • the porous body may have a large number of pores (not shown in the figures) that serve as flow channels for the condensed working medium to flow.
  • the collecting section 8 also acts as a distributor, so that the condensed medium (fluid) in the return pipe 5 is evenly distributed to each heat pipe through the collecting section 8 .
  • the medium pressure in the connecting pipe 2 is made lower than the medium pressure in the return pipe 5 , so as to ensure that the medium in the evaporation section 1 can enter the connecting pipe 2 through the collecting section 8 after being evaporated.
  • the diameter of the connecting pipe 2 can be made larger than the diameter of the return pipe 5 .
  • the evaporation section 1 can be installed in a number of different ways. Referring to FIG. 2 , in some embodiments, the evaporation section 1 is installed on the outer surface of the pool wall of the spent fuel pool 6 . This installation method does not occupy space in the spent fuel pool 6 and ensures that the heat pipe heat exchanger does not interact with the spent fuel pool 6 . Various devices in the spent fuel pool 6 interfere, and it is ensured that the natural convection in the spent fuel pool 6 does not have a detrimental effect; This installation method further improves the system integration; in some embodiments, the evaporation section 1 is arranged on the rack 7 in the spent fuel pool 6 . In some embodiments, it is integral with the grid 7 within the spent fuel pool 6 . Setting the grid 7 can also improve the seismic performance of the equipment and further improve the safety. It is also conceivable that these different installations described above can be combined in various suitable ways.
  • each or more of the evaporation sections 1 may be designed in a modular structure.
  • the evaporation section 1 can be designed as a plurality of modular structures, thereby simplifying installation and improving the flexibility of installation of the evaporation section 1 relative to the spent fuel pool 6 .
  • the medium evaporated in the modular evaporation section 1 is collected by the collecting section 8 to the connecting pipe 2 and passed through the building 3 by means of penetrations (not shown in the figures).
  • the connecting pipe 2 and the return pipe 5 are arranged in the same duct.
  • fins are provided outside the condensation section 4.
  • a chimney-shaped outer structure is provided outside the condensing section 4 to form a "chimney effect" at the condensing section 4 to increase the flow rate of the air. It is also conceivable that, in some embodiments, both fins and a chimney-shaped outer structure may be provided outside the condensation section 4 .
  • the heat pipe heat exchanger may be installed according to the following steps, including: providing an evaporation section 1 to absorb heat from the spent fuel pool; providing a collecting section 8 and connecting one end of the evaporation section 1 to the collecting section 8; One end of the connecting pipe 2 is connected to the collecting section 8 ; one end of the condensing section 4 is connected to the other end of the connecting pipe 2 , and the other end of the condensing section 4 is connected to the evaporation section 1 through the return pipe 5 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

本发明提供一种热管换热器及其安装方法，所述热管换热器用于乏燃料水池的非能动余热导出且包括：蒸发段(1)，其构造为从乏燃料水池(6)中吸热以使工作介质蒸发；汇集段(8)，其与蒸发段(1)的一端相连；连接管(2)，连接管(2)的一端与汇集段(8)相连；以及冷凝段(4)，冷凝段(4)构造为使蒸发的工作介质冷凝，冷凝段(4)的一端与连接管(2)的另一端相连，并且冷凝段(4)的另一端通过回流管(5)与蒸发段(1)相连。

Description

一种热管换热器及其安装方法
本申请要求2020年11月27日提交的发明名称为“一种乏燃料水池非能动余热导出热管换热器”、申请号为202011353252.4的中国专利申请的优先权。
技术领域
本发明涉及核电厂非能动安全设备技术领域，具体涉及一种用于乏燃料水池的非能动余热导出的热管换热器及其安装方法。
背景技术
目前核电厂的乏燃料水池的热量导出是靠泵循环乏燃料水池内的水经过管壳式换热器，把热量传给设冷水系统来实现的。2011年日本福岛核事故以后，对核反应堆系统固有安全性能提出更高要求。
热管换热器具有传热效率高、压力损失小、工作稳定可靠、结构紧凑和有效隔离一二次侧流体等优点，在许多工业领域已得到广泛应用。
热管换热器的核心部件是热管，热管是一种典型的非能动换热元件，热管内部主要靠工作介质的汽、液相变传热，导热能力很高，其导热系数能达到10 5W/(m·℃)量级，而铜、银等材料的导热系数只能达到10 2W/(m·℃)量级。
发明内容
存在将目前使用的靠泵循环的强制换热器替换为安全性能更高的换热器的需求。但在将目前的强制换热器替换为用于乏燃料水池的非能动余热导出的热管换热器时面临许多问题。
本发明的目的在于提供一种能够解决这些问题的热管换热器及其安装方法，使得该热管换热器能够在乏燃料水池正常运行和事故 条件下导出乏燃料水池的余热。
为实现上述目的，本发明采用的技术方案如下：
一种热管换热器，所述热管换热器包括：蒸发段，所述蒸发段构造为从乏燃料水池中吸热以使工作介质蒸发；汇集段，所述汇集段与所述蒸发段的一端相连；连接管，所述连接管的一端与所述汇集段相连；以及冷凝段，所述冷凝段构造为使蒸发的工作介质冷凝，所述冷凝段的一端与所述连接管的另一端相连，并且所述冷凝段的另一端通过回流管与所述蒸发段相连。
在一些实施例中，所述回流管可以通过所述汇集段与所述蒸发段相连。
在一些实施例中，所述连接管的直径可以大于所述回流管的直径。
在一些实施例中，所述蒸发段可以安装在乏燃料水池的池壁外表面上。
在一些实施例中，所述蒸发段可以与乏燃料水池的池壁构成一个整体。
在一些实施例中，所述蒸发段可以设置在乏燃料水池内的格架上。
在一些实施例中，所述蒸发段可以与乏燃料水池内的格架构成一个整体。
在一些实施例中，所述蒸发段可以采用模块化结构设计。
在一些实施例中，所述连接管与所述回流管可以布置在同一管道中。
在一些实施例中，所述冷凝段的外部可以设置有翅片。
在一些实施例中，在所述回流管中可以设置有多孔体。
在一些实施例中，所述汇集段还可以用作分配器，使得所述回流管中冷凝后的介质通过分配器均匀地分布到每根热管中。
在一些实施例中，一种热管换热器的安装方法，包括如下步骤：设置蒸发段以从乏燃料水池中吸热；提供汇集段并将所述蒸发段的一端连接至所述汇集段；将连接管的一端连接至所述汇集段；以及 将所述冷凝段的一端连接至所述连接管的另一端，并使所述冷凝段的另一端通过回流管与所述蒸发段相连。
附图说明
图1为本发明的实施例的用于乏燃料水池的非能动余热导出的热管换热器的基本运行原理的示意图。
图2为本发明的一个实施例的用于乏燃料水池的非能动余热导出的热管换热器的立体示意图。
图中：
1-蒸发段，2-连接管，3-建筑物，4-冷凝段，5-回流管，6-乏燃料水池，7-格架，8-汇集段。
具体实施方式
下面结合说明书附图与具体实施方式对本发明做进一步的详细说明。
参见图1所示，该图示意性地示出了用于乏燃料水池的非能动余热导出的热管换热器的基本运行原理；该热管换热器包括换热器本体，换热器本体包括蒸发段1、连接管2、冷凝段4以及回流管5。蒸发段1设置在乏燃料水池6内。蒸发段1的一端与连接管2相连。连接管2穿过建筑物3与冷凝段4的一端相连，冷凝段4的另一端通过回流管5与蒸发段1的另一端相连。蒸发段1具有从乏燃料水池6中吸热以使工作介质蒸发从而产生蒸气的功能。在蒸发段1中产生的蒸气通过连接管2送至冷凝段4。冷凝段4具有使工作介质的蒸气冷凝的功能。液化的工作介质通过回流管5送至蒸发段1。在一些实施例中，可以将蒸气压力高并且蒸发潜热大的介质用作工作介质。例如，可以将氨、水、含氯氟烃、醇、丙酮等用作工作介质。
运行时，通过蒸发段1在乏燃料水池内吸热以使蒸发段1内的工作介质蒸发而产生蒸气，所生产的蒸气克服管道阻力和/或重力沿着连接管2运动，到达室外的冷凝段4，然后与空气换热冷凝，冷凝后的介质(例如水等流体)在重力或者毛细力作用下通过回流管5 流回蒸发段1，依次循环将乏燃料水池6的余热传递到厂房外的大气中，使得乏燃料水池6的水满足系统要求，保证乏燃料水池6的安全。
参见图2，该图示出了本发明的用于乏燃料水池的非能动余热导出的热管换热器的一个实施例。该热管换热器包括蒸发段1、汇集段8、连接管2、冷凝段4以及回流管5。
如图2所示，蒸发段1可以设置在乏燃料水池6内。在一些实施例中，蒸发段1也可以设置在乏燃料水池6的池壁外表面上。蒸发段1的一端与汇集段8相连。连接管2的一端与汇集段8相连，这样，在运行时蒸发段1内蒸发的介质通过汇集段8被汇集到连接管2。在本发明中，通过采用汇集段8减少了管线的数量和体积，提高了系统的集成度，从而确保了热管换热器不与其他装置发生干涉。
连接管2穿过建筑物3与冷凝段4的一端相连，冷凝段4的另一端通过回流管5与蒸发段1相连。回流管5通过汇集段8与多个蒸发段1相连。
本发明中的用于乏燃料水池的非能动余热导出的热管换热器通过蒸发段1吸收乏燃料水池6内的热量，以使蒸发段1内的工作介质蒸发而产生蒸气，所产生的蒸气通过汇集段8被汇集到连接管2，克服管道阻力和/或重力，沿着连接管2运动，到达室外的冷凝段4，然后与空气换热冷凝，冷凝后的介质在重力或者毛细力作用下通过回流管5到达汇集段8，并通过汇集段8而流回到蒸发段1，依次循环从而将乏燃料水池的余热传递到厂房外的大气中，使得乏燃料水池的水温满足要求，保证乏燃料水池的安全。
在一些实施例中，冷凝段4的设置位置可以高于蒸发段1的设置位置。在这种情况下，可以利用重力实现上文中描述的工作介质循环。在一些实施例中，冷凝段4的设置位置可以不高于蒸发段1的设置位置；在一些实施例中，冷凝段4可能存在许多弯曲部分而导致不能利用重力实现工作介质循环。在这种情况下，可以在回流管5中设置有沿着回流管5的长度方向从冷凝段4延伸至蒸发段1的多孔体(图中未示出)。多孔体通过其产生的毛细力而促进冷凝 段4中被冷凝(液化)的工作介质被引导至蒸发段1。在一些实施例中，多孔体可以具有大量孔隙(图中未示出)，这些孔隙用作供冷凝后的工作介质流过的流道。
在一些实施例中，汇集段8也用作分配器，使得回流管5中冷凝后的介质(流体)通过汇集段8均匀地分布到每根热管中。另外，在一些实施例中，使得连接管2中的介质压力小于回流管5中的介质压力，从而确保蒸发段1中的介质蒸发后能够通过汇集段8进入连接管2中。在一些实施例中，可以使连接管2的直径大于回流管5的直径。
蒸发段1具有多种不同的安装方式。参照图2所示，在一些实施例中，蒸发段1安装在乏燃料水池6的池壁外表面上，这种安装方式不占用乏燃料水池6内的空间，确保了热管换热器不与乏燃料水池6中的各种装置发生干涉，并且保证了对乏燃料水池中的自然对流不造成有害影响；在一些实施例中，蒸发段1与乏燃料水池6的池壁构成一个整体，这种安装方式进一步提高了系统集成度；在一些实施例中，蒸发段1设置在乏燃料水池6内的格架7上。在一些实施例中，与乏燃料水池6内的格架7构成一个整体。设置格架7还能够提高设备的抗震性能，进一步提高安全性。还可以想到的是，上述这些不同的安装方式可以以各种合适的方式进行组合。
在一些实施例中，蒸发段1的每一个或多个可以采用模块化结构设计。参见图2，蒸发段1可以设计为多个模块化结构，从而简化安装，并且提高了蒸发段1相对于乏燃料水池6进行安装时的灵活性。
模块化的蒸发段1中蒸发的介质通过汇集段8汇集到连接管2，并通过贯穿件(图中未示出)穿过建筑物3。为了热管换热器穿过建筑物3中的贯穿件，在一些实施例中，连接管2与回流管5布置在同一管道中。通过将连接管2与回流管5布置在同一管道中减少了对建筑物3的贯穿，从而更容易地保证了边界完整性，防止泄漏的发生。
为了提高换热效率以及提高空气流速，在一些实施例中，冷凝 段4外部设置有翅片。在一些实施例中，在冷凝段4外部设置有烟囱形的外部结构，以便在冷凝段4处形成“烟囱效应”，以提高空气的流速。还可以想到的是，在一些实施例中，可以同时在冷凝段4外部设置翅片和烟囱形的外部结构。
在一些实施例中，热管换热器可以按照如下步骤来安装，包括：设置蒸发段1以从乏燃料水池中吸热；提供汇集段8并将蒸发段1的一端连接至汇集段8；将连接管2的一端连接至汇集段8；以及将冷凝段4的一端连接至连接管2的另一端，并将冷凝段4的另一端通过回流管5与蒸发段1相连。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其同等技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (11)

  1. 一种热管换热器，包括：
    蒸发段，所述蒸发段构造为从乏燃料水池中吸热以使工作介质蒸发；
    汇集段，所述汇集段与所述蒸发段的一端相连；
    连接管，所述连接管的一端与所述汇集段相连；以及
    冷凝段，所述冷凝段构造为使蒸发的工作介质冷凝，所述冷凝段的一端与所述连接管的另一端相连，并且所述冷凝段的另一端通过回流管与所述蒸发段相连。
  2. 根据权利要求1所述的热管换热器，其中，所述回流管通过所述汇集段与所述蒸发段相连。
  3. 根据权利要求1或2所述的热管换热器，其中，所述连接管的直径大于所述回流管的直径。
  4. 根据权利要求1至3中任一项所述的热管换热器，其中，所述蒸发段安装在乏燃料水池的池壁外表面上。
  5. 根据权利要求1至4中任一项所述的热管换热器，其中，所述蒸发段与乏燃料水池的池壁构成一个整体。
  6. 根据权利要求1至5中任一项所述的热管换热器，其中，所述蒸发段与乏燃料水池内的格架构成一个整体。
  7. 根据权利要求1至6中任一项所述的热管换热器，其中，所述连接管与所述回流管布置在同一管道中。
  8. 根据权利要求1至7中任一项所述的热管换热器，其中，所 述蒸发段采用模块化结构设计。
  9. 根据权利要求1至8中任一项所述的热管换热器，其中，所述冷凝段的外部设置有翅片。
  10. 根据权利要求1至9中任一项所述的热管换热器，其中，在所述回流管中设置有多孔体。
  11. 一种热管换热器的安装方法，包括如下步骤：
    设置蒸发段以从乏燃料水池中吸热；
    提供汇集段并将所述蒸发段的一端连接至所述汇集段；
    将连接管的一端连接至所述汇集段；以及
    将冷凝段的一端连接至所述连接管的另一端，并使所述冷凝段的另一端通过回流管与所述蒸发段相连。
PCT/CN2021/132229 2020-11-27 2021-11-23 一种热管换热器及其安装方法 Ceased WO2022111428A1 (zh)

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