WO2016201948A1 - 棒束临界热流密度试验装置 - Google Patents

棒束临界热流密度试验装置 Download PDF

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Publication number
WO2016201948A1
WO2016201948A1 PCT/CN2015/100302 CN2015100302W WO2016201948A1 WO 2016201948 A1 WO2016201948 A1 WO 2016201948A1 CN 2015100302 W CN2015100302 W CN 2015100302W WO 2016201948 A1 WO2016201948 A1 WO 2016201948A1
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WIPO (PCT)
Prior art keywords
bundle
heating rod
outlet
inlet
heat flux
Prior art date
Application number
PCT/CN2015/100302
Other languages
English (en)
French (fr)
Inventor
卢冬华
文青龙
李嘉明
张戈
杨智翔
Original Assignee
中广核研究院有限公司
中国广核集团有限公司
中国广核电力股份有限公司
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Application filed by 中广核研究院有限公司, 中国广核集团有限公司, 中国广核电力股份有限公司 filed Critical 中广核研究院有限公司
Publication of WO2016201948A1 publication Critical patent/WO2016201948A1/zh

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • 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 present invention relates to the field of nuclear reactor test research, and more particularly to a bundle beam critical heat flux test apparatus.
  • the heating rod bundle in the related art is tested for installation, and is inserted into the pressure-bearing shell from the top, and the heating rod bundle is usually connected to the power source through the exposed portion of the tip, and the other end of the heating rod bundle is located inside the pressure-bearing shell. It is connected to the power supply by connecting to the housing of the test device or to other conductors.
  • the inner and outer peers increase the complexity of the external power connection of the test device and increase the installation difficulty.
  • the technical problem to be solved by the present invention is to provide an improved rod bundle critical heat flux density testing device.
  • the technical solution adopted by the present invention to solve the technical problem is: constructing a bundle beam critical heat flux density testing device, comprising a pressure bearing shell, a flow channel, a heating rod bundle, and a heating rod bundle fixedly mounted with an electrically conductive mounting plate
  • the two ends of the pressure-bearing shell are respectively provided with an outlet and an inlet that communicate with the inner cavity for the experimental medium to enter and exit;
  • the flow channel is axially disposed in the pressure-bearing shell, and The two ends are respectively connected to the outlet and the inlet;
  • the mounting plate is detachably matched with an end surface of the pressure receiving shell corresponding to the end of the outlet, so that the heating rod on the mounting board a bundle is inserted into the flow channel,
  • the mounting plate is electrically connected to the heating rod bundle and insulated from the pressure bearing shell.
  • the mounting plate comprises a nickel plate.
  • an end surface of the pressure receiving shell corresponding to one end of the outlet is provided with an insulating flange for insulating and isolating the mounting board.
  • a gap is left between the outer wall surface of the flow channel and the inner wall surface of the pressure receiving shell.
  • the mounting plate is provided with a plurality of mounting positions for mounting the heating rod bundle
  • the plurality of mounting positions are located within a range of the mounting plate and the flow channel facing the area, and the plurality of mounting positions are offset inward from the inner ring outer shape boundary of the flow path.
  • the pressure bearing shell comprises an end wall formed on an end surface of the pressure receiving shell corresponding to the end where the inlet is located, and the end wall is provided with the number and the number of the mounting positions A plurality of through holes corresponding to the arrangement manner for the heating rod bundle to pass through.
  • the plurality of mounting positions and the plurality of through holes are arranged in a square matrix; or
  • the plurality of mounting positions and the plurality of through holes each include 25, and are respectively arranged in a 5 ⁇ 5-square matrix arrangement.
  • the cross section of the flow channel is a square, so that the plurality of heating rod bundles are evenly arranged in a square matrix, and the outer ring of the flow channel is provided with an isolation ring, and the isolation ring is
  • the pressure bearing shell is fitted on an inner wall surface between the outlet and the inlet to form an outer ring of the flow channel and the inner wall surface of the pressure bearing shell between the outlet and the inlet Channel partition.
  • the pressure bearing shell comprises a middle pipe section located at a middle portion and an inlet pipe section and an outlet pipe section respectively detachably mounted at both ends of the middle pipe section;
  • the outlet is disposed on the outlet pipe section, and the inlet is disposed on the inlet pipe section, and the end wall is formed on the outlet pipe section or detachably mounted on the outlet pipe section.
  • the outlet is disposed on a sidewall of the outlet duct
  • the inlet is disposed on a sidewall of the inlet duct.
  • the rod bundle critical heat flux density testing device embodying the present invention has the following beneficial effects:
  • the mounting plate of the present invention is insulated from the pressure bearing shell, and the mounting plate can be electrically connected to the heating rod bundle after the heating rod bundle is installed.
  • the connection between the mounting plate and the power supply simplifies the installation of the heating rod bundle, and also ensures the insulation effect between the main part of the test device and the power supply.
  • the mounting plate and the heating rod bundle are installed to form an integral integrated module, and the heating rod bundle can be replaced and hoisted without moving the inlet and outlet of the testing device.
  • FIG. 1 is a schematic axial cross-sectional view showing a bundle of a heating rod bundle installed in a bundle bundle critical heat flux density test apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the structure of a cross-sectional position of the pressure bearing shell, the flow passage and the heating rod bundle of FIG. 1.
  • a bundle bundle critical heat flux test apparatus in a preferred embodiment of the present invention includes a pressure bearing shell 10, a flow passage 20, a heating rod bundle 30, and a heating rod bundle 30 fixedly mounted to be electrically conductive.
  • Mounting plate 40
  • Both ends of the pressure-bearing shell 10 are respectively provided with an outlet A and an inlet B which are in communication with the inner cavity for the experimental medium to enter and exit.
  • the pressure-bearing shell 10 is usually vertically arranged, and the outlet A is located at the upper end, the inlet B is at the lower end.
  • the experimental work is usually deionized water, which is injected into the pressure-bearing casing 10 from the lower inlet B.
  • the flow channel 20 is disposed in the pressure bearing shell 10 in the axial direction, and the two ends are respectively connected with the outlet A and the inlet B, and the outer ring of the flow channel 20 is provided with the isolation ring 21, the isolation ring 21 and the bearing
  • the pressure shell 10 is fitted on the inner wall surface between the outlet A and the inlet B to partition the outer ring of the flow passage 20 and the passage formed by the inner wall surface of the pressure receiving shell 10 between the outlet A and the inlet B, so that the inlet B, the flow Road 20 and outlet A are connected in sequence.
  • the experimental medium injected into the pressure bearing shell 10 from the inlet B enters the flow passage 20 from the lower end port of the flow passage 20 and flows out from the outlet A with continuous injection.
  • a gap is left between the outer wall surface of the flow path 20 and the inner wall surface of the pressure receiving casing 10, which can serve to keep the heating rod bundle 30 in the flow path 20 and the flow path 20 warm, thereby improving thermal efficiency.
  • the cross section of the flow path 20 may be various shapes such as a circle, a square, and a hexagon, and the heating rod bundle 30 may be worn.
  • the mounting plate 40 is detachably separable with the end face of the pressure bearing shell 10 corresponding to the end where the outlet A is located.
  • the mounting plate 40 is electrically connected to the heating rod bundle 30 and insulated from the pressure bearing shell 10 to prevent the mounting plate 40 and the pressure receiving layer.
  • the shell 10 is electrically shorted.
  • the mounting plate 40 may be a member formed of a conductive metal such as a nickel plate.
  • One end of the heating rod bundle 30 may be detachably connected to the mounting plate 40, or the heating rod bundle 30 and the mounting plate 40 may be integrated to realize a power supply. Turn on.
  • a conductive line corresponding to the mounting position may also be disposed on the mounting plate 40, and after the heating rod bundle 30 is mounted, it is connected to the power source through a conductive line.
  • an insulating flange 11 for insulating and isolating the mounting plate 40 is provided at the end of the pressure receiving casing 10 corresponding to the outlet A-end.
  • an insulating gasket or the like may be provided between the mounting plate 40 and the pressure receiving casing 10.
  • the mounting plate 40 is provided with a plurality of mounting positions for mounting the heating rod bundle 30, and the mounting position may be a mounting hole or a mounting joint for mounting the heating rod bundle 30.
  • the mounting plate 40 and the heating rod bundle 30 can be integrally hoisted to facilitate the installation of the heating rod bundle 30 into or out of the flow path 20.
  • each mounting position is located within a region of the mounting plate 40 facing the flow path 20, and the mounting position is offset inward from the inner ring outer shape boundary of the flow path 20, after the heating rod bundle 30 is installed, The heated heating rod bundle 30 is inserted into the flow passage 20 and prevents the heating rod bundle 30 from interfering with or colliding with the flow passage 20.
  • the mounting plate 40 is electrically connected to the power source, and the heating rod bundle 30 is turned on to supply the heating rod bundle 30.
  • the arrangement of the heating rod bundles 30 can be installed according to the actual application, such as a square matrix arrangement, and the mounting positions on the mounting plate 40 include a plurality of mounting positions arranged in a square matrix.
  • the cross section of the flow path 20 is preferably square, corresponding to the square matrix arrangement shape of the plurality of heating rod bundles 30, so that the sub-channels of the experimental working medium between the heating rod bundles 30 are uniform.
  • the mounting position in order to simulate the flow heat transfer in the real fuel group, can be designed as a 5 ⁇ 5 square matrix arrangement, and a total of 25 heating rod bundles 30 can be installed, adjacent to each other.
  • the sub-channels of the experimental working medium are formed between the heating rod bundles 30, which is closer to the real environment.
  • the heating rod bundles 30 with different radial power distributions can be arranged. For example, 16 of the outer ring are used to install the low-power heating rod bundle 30, and 9 of the outer ring enclosures are used for installing high-power.
  • the bundle 30 is heated.
  • the pressure bearing shell 10 includes a middle tube section 12 at the middle portion and an inlet tube section 13 and an outlet tube section 14 respectively detachably mounted at the ends of the middle tube section 12, preferably, insulated Flange 11 Placed on the outlet pipe section 14.
  • the outlet A is disposed on the side wall of the outlet pipe section 14
  • the inlet B is disposed on the side wall of the inlet pipe section 13
  • the outlet A and the inlet B are disposed on the side wall to facilitate the axial direction of the heating rod bundle 30 at a high temperature. Release of thermal expansion.
  • the middle pipe section 12 of a suitable length can be selected according to the length of the heating bar bundle 30 to meet the testing requirements of the heating rod bundle 30 of different lengths.
  • the inlet pipe section 13 includes an end wall 131 formed on the end of the intermediate pipe section 12, and in other embodiments, the end wall 131 may also be a cover that is detachably mounted on the inlet pipe section 13.
  • the end wall 131 may also be formed on the end surface of the pressure bearing shell 10 corresponding to the end where the inlet B is located.
  • the end wall 131 is provided with a plurality of through holes 132 corresponding to a plurality of mounting positions and corresponding in number and arrangement for the heating rod bundle 30 to pass through.
  • the heating rod bundle 30 passing through the flow passage 20 can be connected to the power source after the through hole 13 2 is pierced, and is directly connected to the power source, so that the pressure receiving shell 10 can be prevented from being connected to the power source, thereby reducing the safety hazard.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种棒束临界热流密度试验装置，包括承压壳（10）、流道（20）、加热棒束（30）以及供加热棒束（30）固定安装可导电的安装板（40）。承压壳（10）的两端分别设有与内腔连通以供实验工质进出的出口（A）和入口（B）。流道（20）沿轴向设置在承压壳（10）内，且两端侧分别与出口（A）和入口（B）连通。安装板（40）可分离地与出口（A）所在端对应的承压壳（10）的端面配合，以使安装板（40）上的加热棒束（30）穿设到流道（20）内。安装板（40）与加热棒束（30）电性连接，并与承压壳（10）之间绝缘。安装板（40）与承压壳（10）之间绝缘，在安装加热棒束（30）后安装板（40）可与加热棒束（30）电性连接，通过安装板（40）与电源连接，简化了加热棒束（30）的安装，还能保证试验装置主体部分与电源的绝缘效果。

Description

棒束临界热流密度试验装置
技术领域
[0001] 本发明涉及核反应堆试验研究领域， 更具体地说， 涉及一种棒束临界热流密度 试验装置。
背景技术
[0002] 相关技术中的加热棒束在安装进行测试吋采用从顶部插入到承压壳内， 加热棒 束通常是通过顶端露出部分与电源连接， 加热棒束位于承压壳内的另一端则是 通过与试验装置的壳体或与其他导体连接后引出再与电源连接。
[0003] 以上安装和连接方式通常需要对加热棒束支撑定位， 且每一加热棒束都要单独 拆装， 导致加热棒束的安装和更换不方便， 连接也不稳定， 花费了较多的吋间 ， 降低了测试效率。
[0004] 另外， 内外侧同吋通电增加了试验装置外接电源连接的复杂性， 增加了安装难 度。
技术问题
[0005] 本发明要解决的技术问题在于， 提供一种改进的棒束临界热流密度试验装置。
问题的解决方案
技术解决方案
[0006] 本发明解决其技术问题所采用的技术方案是： 构造一种棒束临界热流密度试验 装置， 包括承压壳、 流道、 加热棒束以及供加热棒束固定安装可导电的安装板
[0007] 所述承压壳的两端侧分别设有与内腔连通以供实验工质进出的出口和入口； [0008] 所述流道沿轴向设置在所述承压壳内， 且两端分别与所述出口和入口连通； [0009] 所述安装板可分离地与所述出口所在端对应的所述承压壳的端面配合， 以使所 述安装板上的所述加热棒束穿设到所述流道内，
[0010] 所述安装板与所述加热棒束电性连接， 并与所述承压壳之间绝缘。
[0011] 优选地， 所述安装板包括镍板。 [0012] 优选地， 所述出口一端对应的所述承压壳的端面设有用于对所述安装板绝缘隔 离的绝缘法兰。
[0013] 优选地， 所述流道的外壁面和所述承压壳的内壁面之间留有间隙。
[0014] 优选地， 所述安装板上设有供所述加热棒束安装的若干安装位；
[0015] 所述若干安装位位于所述安装板与所述流道正对的区域范围内， 且所述若干安 装位向内偏离所述流道的内圈外形边界。
[0016] 优选地， 所述承压壳包括形成于与所述入口所在端对应的所述承压壳的端面上 的端壁， 所述端壁上设有与所述若干安装位相对且数量和排布方式对应的若干 通孔， 以供所述加热棒束穿过。
[0017] 优选地， 所述若干安装位和所述若干通孔均呈方形矩阵式排布； 或，
[0018] 所述若干安装位和所述若干通孔均包括 25个， 且分别呈 5X5式方形矩阵式排布
[0019] 优选地， 所述流道的横断面为正方形， 以供所述若干加热棒束呈方形矩阵式均 匀排布， 在所述流道的外圈套设有隔离圈， 所述隔离圈与所述承压壳位于所述 出口和所述入口之间的内壁面配合， 以将所述流道的外圈和所述承压壳位于所 述出口和所述入口之间的内壁面形成的通道隔断。
[0020] 优选地， 所述承压壳包括位于中部的中管段和分别可拆卸安装于所述中管段两 端的入口管段、 出口管段；
[0021] 所述出口设置在所述出口管段上， 所述入口设置在所述入口管段上， 所述端壁 形成于所述出口管段上或可拆卸地安装在所述出口管段上。
[0022] 优选地， 所述出口设置在所述出口管道的侧壁上， 所述入口设置在所述入口管 段的侧壁上。
发明的有益效果
有益效果
[0023] 实施本发明的棒束临界热流密度试验装置， 具有以下有益效果： 本发明中的安 装板与承压壳之间绝缘， 在安装加热棒束后安装板可与加热棒束电性连接， 通 过安装板与电源连接， 简化了加热棒束的安装， 还能保证试验装置主体部分与 电源的绝缘效果。 [0024] 同吋， 安装板和加热棒束安装后形成一个整体集成模块， 可以在不移动试验装 置进出口的情况下， 对加热棒束进行更换吊装。
对附图的简要说明
附图说明
[0025] 下面将结合附图及实施例对本发明作进一步说明， 附图中：
[0026] 图 1是本发明实施例中的棒束临界热流密度试验装置安装加热棒束吋的轴向剖 面示意图；
[0027] 图 2是图 1的承压壳、 流道及加热棒束的断面位置结构示意图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0028] 为了对本发明的技术特征、 目的和效果有更加清楚的理解， 现对照附图详细说 明本发明的具体实施方式。
[0029] 如图 1所示， 本发明一个优选实施例中的棒束临界热流密度试验装置包括承压 壳 10、 流道 20、 加热棒束 30、 以及供加热棒束 30固定安装可导电的的安装板 40
[0030] 承压壳 10的两端侧分别设有与内腔连通以供实验工质进出的出口 A和入口 B， 在测试吋， 承压壳 10通常竖直设置， 出口 A位于上端， 入口 B位于下端。 实验工 质通常为去离子水， 由下端的入口 B注入到承压壳 10内。
[0031] 进一步地， 流道 20沿轴向设置在承压壳 10内， 且两端分别与出口 A和入口 B连 通， 在流道 20的外圈套设有隔离圈 21， 隔离圈 21与承压壳 10位于出口 A和入口 B 之间的内壁面配合， 以将流道 20的外圈和承压壳 10位于出口 A和入口 B之间的内 壁面形成的通道隔断， 使入口 B、 流道 20、 出口 A依次连通。 由入口 B注入承压 壳 10的实验工质由流道 20的下端端口进入流道 20内， 并随着持续的注入由出口 A 流出。
[0032] 优选地， 流道 20的外壁面和承压壳 10的内壁面之间留有间隙， 可以起到对流道 20和流道 20内的加热棒束 30保温的作用， 提高热效率。 流道 20的横断面可为圆 形、 方形、 六边形等各种形状， 能供加热棒束 30穿设即可。
[0033] 在一些实施例中， 安装板 40可分离地和出口 A所在端对应的承压壳 10的端面配 合， 以使安装板 40上的加热棒束 30穿设到流道 20内， 安装板 40与加热棒束 30电 性连接， 并与承压壳 10之间绝缘， 防止安装板 40和承压壳 10间导电短路。 安装 板 40可为镍板等可导电金属形成的部件， 加热棒束 30的一端可与安装板 40可拆 卸的连接， 也可将加热棒束 30与安装板 40做成一体， 实现与电源的导通。 安装 板 40上也可设置与安装位对应的导电线路， 在加热棒束 30安装后， 通过导电线 路与电源连接。
[0034] 为了防止安装板 40和承压壳 10间导电短路， 在出口 A—端对应的承压壳 10的端 面设有用于对安装板 40绝缘隔离的绝缘法兰 11。 在其他实施例中， 也可在安装 板 40和承压壳 10间设置绝缘垫圈等。
[0035] 优选地， 安装板 40上设有多个供加热棒束 30安装的安装位， 安装位可为供加热 棒束 30安装的安装孔或安装接头等。
[0036] 在加热棒束 30安装到安装板 40后， 可实现安装板 40和加热棒束 30的整体吊装， 方便加热棒束 30安装到流道 20内或从流道 20吊出。
[0037] 结合图 2所示， 各安装位位于安装板 40与流道 20正对的区域范围内， 且安装位 向内偏离流道 20的内圈外形边界， 在加热棒束 30安装后， 方便加热棒束 30穿设 到流道 20内， 并避免加热棒束 30与流道 20产生干涉或碰撞。
[0038] 在加热棒束 30装入流道 20后， 让安装板 40与电源电性连接， 加热棒束 30接通电 源， 即可对加热棒束 30进行加热。 加热棒束 30的排布方式可根据实际的应用来 安装， 如方形矩阵式排布， 则安装板 40上的安装位包括呈方形矩阵式排布的多 个安装位。 此吋， 流道 20的横断面优选地为正方形， 以和若干加热棒束 30的方 形矩阵式排布形状对应， 使各加热棒束 30间的实验工质的子通道均匀。
[0039] 如图 2所示， 为了模拟真实的燃料组内的流动传热情况， 安装位可设计成 5X5的 方形矩阵式排布方式， 共可安装 25根加热棒束 30， 在相邻的加热棒束 30之间形 成实验工质的子通道， 更接近真实的环境。 可根据工程实际需要， 排布不同径 向功率分布的加热棒束 30， 如外圈的 16个用来安装低功率的加热棒束 30， 被外 圈围设的 9个用来安装高功率的加热棒束 30。
[0040] 在如图 1所示， 在一些实施例中， 承压壳 10包括位于中部的中管段 12和分别可 拆卸安装于中管段 12两端的入口管段 13、 出口管段 14， 优选地， 绝缘法兰 11设 置在出口管段 14上。 优选地， 出口 A设置在出口管段 14的侧壁上， 入口 B设置在 入口管段 13的侧壁上， 出口 A和入口 B设置在侧壁上有利于加热棒束 30在高温情 况下的轴向热膨胀的释放。
[0041] 由于中管段 12的可拆卸， 可根据加热棒束 30的长度， 可选择合适长度的中管段 12进行安装， 满足不同长度加热棒束 30的测试需求。
[0042] 入口管段 13包括形成于远离中管段 12—端上的端壁 131， 在其他实施例中， 端 壁 131也可为可拆卸地安装在入口管段 13上的盖体。 当承压壳 10为一体结构吋， 端壁 131也可形成于与入口 B所在端对应的承压壳 10的端面上。
[0043] 在一些实施例中， 端壁 131上设有与若干安装位相对且数量和排布方式对应的 若干通孔 132， 以供加热棒束 30穿过。 穿设流道 20的加热棒束 30可在穿设通孔 13 2后与电源连接， 直接和电源接通， 可避免由承压壳 10与电源接通， 降低了安全 隐患。
[0044] 在进行棒束临界热流密度实验， 实验工质流经流道 20吋被接通电源后的加热棒 束 30加热， 随着热流密度的升高， 加热棒束 30壁面会发生临界热流密度现象， 实现临界热流密度试验实验。
[0045] 可以理解地， 上述各技术特征可以任意组合使用而不受限制。
[0046] 以上所述仅为本发明的实施例， 并非因此限制本发明的专利范围， 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换， 或直接或间接运用在 其他相关的技术领域， 均同理包括在本发明的专利保护范围内。

Claims

权利要求书
[权利要求 1] 一种棒束临界热流密度试验装置， 其特征在于， 包括承压壳 （10) 、
流道 （20) 、 加热棒束 （30) 、 以及供所述加热棒束 （30) 固定安装 可导电的安装板 （40) ；
所述承压壳 （10) 的两端侧分别设有与内腔连通以供实验工质进出的 出口 （A) 和入口 （B) ；
所述流道 （20) 沿轴向设置在所述承压壳 （10) 内， 且两端分别与所 述出口 （A) 和入口 （B) 连通；
所述安装板 （40) 可分离地与所述出口 （A) 所在端对应的所述承压 壳 （10) 的端面配合， 以使所述安装板 （40) 上的所述加热棒束 （30 ) 穿设到所述流道 （20) 内；
所述安装板 （40) 与所述加热棒束 （30) 电性连接， 并与所述承压壳 (10) 之间绝缘。
[权利要求 2] 根据权利要求 1所述的棒束临界热流密度试验装置， 其特征在于， 所 述安装板 （40) 包括镍板。
[权利要求 3] 根据权利要求 1所述的棒束临界热流密度试验装置， 其特征在于， 所 述出口 （A) —端对应的所述承压壳 （10) 的端面设有用于对所述安 装板 （40) 绝缘隔离的绝缘法兰 （11) 。
[权利要求 4] 根据权利要求 1所述的棒束临界热流密度试验装置， 其特征在于， 所 述流道 （20) 的外壁面和所述承压壳 （10) 的内壁面之间留有间隙。
[权利要求 5] 根据权利要求 1至 4任一项所述的棒束临界热流密度试验装置， 其特征 在于， 所述安装板 （40) 上设有供所述加热棒束 （30) 安装的若干安 装位；
所述若干安装位位于所述安装板 （40) 与所述流道 （20) 正对的区域 范围内， 且所述若干安装位向内偏离所述流道 （20) 的内圈外形边界
[权利要求 6] 根据权利要求 5所述的棒束临界热流密度试验装置， 其特征在于， 所 述承压壳 （10) 包括形成于与所述入口 （B) 所在端对应的所述承压 壳 （10) 的端面上的端壁 （131) ， 所述端壁 （131) 上设有与所述若 干安装位相对且数量和排布方式对应的若干通孔 （132) ， 以供所述 加热棒束 (30) 穿过。
根据权利要求 6所述的棒束临界热流密度试验装置， 其特征在于， 所 述若干安装位和所述若干通孔 （132) 均呈方形矩阵式排布； 或， 所述若干安装位和所述若干通孔 （132) 均包括 25个， 且分别呈 5X5 式方形矩阵式排布。
根据权利要求 6所述的棒束临界热流密度试验装置， 其特征在于， 所 述流道 （20) 的横断面为正方形， 以供所述若干加热棒束 （30) 呈方 形矩阵式均匀排布， 在所述流道 （20) 的外圈套设有隔离圈 （21) ， 所述隔离圈 （21) 与所述承压壳 （10) 位于所述出口 （A) 和所述入 口 （B) 之间的内壁面配合， 以将所述流道 （20) 的外圈和所述承压 壳 （10) 位于所述出口 （A) 和所述入口 （B) 之间的内壁面形成的 通道隔断。
根据权利要求 5所述的棒束临界热流密度试验装置， 其特征在于， 所 述承压壳 （10) 包括位于中部的中管段 （12) 和分别可拆卸安装于所 述中管段 （12) 两端的入口管段 （13) 、 出口管段 （14) ； 所述出口 （A) 设置在所述出口管段 （14) 上， 所述入口 （B) 设置 在所述入口管段 （13) 上， 所述端壁 （131) 形成于所述出口管段 （1
4) 上或可拆卸地安装在所述出口管段 （14) 上。
根据权利要求 9所述的棒束临界热流密度试验装置， 其特征在于， 所 述出口 （A) 设置在所述出口 （A) 管道的侧壁上， 所述入口 （B) 设置在所述入口管段 （13) 的侧壁上。
PCT/CN2015/100302 2015-06-16 2015-12-31 棒束临界热流密度试验装置 WO2016201948A1 (zh)

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