行业组件数据 · 2026

核心支撑结构

Core Support Structure is a critical load-bearing component in reactor cores that maintains structural integrity under extreme thermal and mechanical stresses.

技术定义与适配语境
典型 核心支撑结构 会按材料、尺寸公差、适配关系和失效风险在 化学制造 中评估。

The Core Support Structure is an engineered assembly designed to securely position and support reactor core components including fuel assemblies, control rods, and instrumentation. It provides precise alignment, distributes mechanical loads, accommodates thermal expansion, and ensures safe operation under high-temperature, high-pressure, and radiation conditions. This structure typically consists of grids, plates, beams, and fastening systems that maintain dimensional stability throughout operational cycles.

组件规格

定义
The Core Support Structure is an engineered assembly designed to securely position and support reactor core components including fuel assemblies, control rods, and instrumentation. It provides precise alignment, distributes mechanical loads, accommodates thermal expansion, and ensures safe operation under high-temperature, high-pressure, and radiation conditions. This structure typically consists of grids, plates, beams, and fastening systems that maintain dimensional stability throughout operational cycles.
工作原理
The Core Support Structure operates on principles of mechanical load distribution, thermal stress management, and vibration damping. It transfers weight and operational forces to the reactor vessel while allowing controlled thermal expansion through engineered gaps and flexible connections. The structure maintains alignment through precision-machined interfaces and resists deformation via optimized cross-sectional geometry and material selection.
材料
High-temperature alloys such as Inconel 718Hastelloy Xor 316L stainless steeloften with neutron-absorbing coatingsminimum yield strength: 550 MPa at 400°Cthermal conductivity: 15-25 W/m·K.
Load Capacity
≥500 kN vertical, ≥200 kN lateral
Surface Finish
Ra ≤ 1.6 μm on mating surfaces
Natural Frequency
>30 Hz to avoid resonance
Radiation Resistance
≥10⁸ Gy total dose
Dimensional Tolerance
±0.1 mm on critical interfaces
Operating Temperature
-50°C to 650°C
标准
ISO 9001ASME BPVC Section IIIRCC-MDIN 25413

行业分类与别名

核心支撑结构 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Cyclic thermal stresses exceeding material endurance limit->Fatigue cracking at weld joints or stress concentration points->Implement finite element analysis during design to optimize geometry, use post-weld heat treatment, apply compressive residual stresses via shot peening
Neutron irradiation altering material microstructure->Reduced fracture toughness and increased brittleness->Select radiation-resistant alloys, incorporate neutron-absorbing shields, establish regular material surveillance programs

工业生态与工程逻辑

0
Stress corrosion cracking
1
Thermal fatigue failure
2
Radiation-induced embrittlement
3
Vibration-induced loosening
4
Creep deformation at elevated temperatures

合规与检测

tolerance
Dimensional tolerances per ASME Y14.5, flatness within 0.05 mm/m, parallelism within 0.1 mm over full length
test method
Ultrasonic testing per ASTM E797, liquid penetrant inspection per ASTM E165, dimensional verification with coordinate measuring machines, load testing to 150% design load

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of a Core Support Structure?

The primary function is to maintain precise positioning and structural integrity of reactor core components while distributing mechanical loads and accommodating thermal expansion under extreme operating conditions.

How often should Core Support Structures be inspected?

Visual and dimensional inspections should occur during every refueling outage (typically 18-24 months), with non-destructive testing (ultrasonic, eddy current) recommended every 5-10 years depending on operating history and material conditions.

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CNFX Industrial Component Index · 化学制造

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URN:CNFX:ME:UNIT:CORE_SUPPORT_STRUCTURE