行业验证制造数据 · 2026

Tube Bundle

基于 CNFX 目录中多个工厂资料的聚合洞察,Tube Bundle 在 机械和设备制造 行业中通常会围绕 标准工业配置 到 重载生产要求 进行能力评估。

技术定义与核心装配

一个典型的 Tube Bundle 通常集成 管束 与 管板。CNFX 上列出的制造商通常强调 Stainless Steel 结构,以支持稳定的生产应用。

A core assembly of multiple parallel tubes arranged within a heat exchanger, designed to maximize surface area for efficient thermal energy transfer between fluids.

技术定义

The Tube Bundle is the primary heat transfer element within a Heat Transfer Assembly, such as a shell-and-tube heat exchanger. It consists of a collection of tubes, typically held in place by tube sheets and supported by baffles, through which one fluid flows. The other fluid flows around the outside of the tubes within the shell. Its design directly determines the efficiency, capacity, and pressure drop characteristics of the entire assembly.

工作原理

Thermal energy is transferred through the tube walls via conduction. One fluid (the tube-side fluid) flows through the interior of the tubes, while a second fluid (the shell-side fluid) flows over the exterior of the tubes. Heat moves from the hotter fluid to the cooler fluid across the tube material, facilitated by the large surface area provided by the bundle.

主要材料

Stainless Steel Carbon Steel Copper Alloys Titanium

组件 / BOM

管束
为两种流体之间的传热提供主要导热表面
材料: 可变(例如:不锈钢)
管板
牢固固定管束两端,为壳程流体与管程流体之间提供压力边界
材料: 碳钢或合金钢
折流板
支撑管束、保持管间距,并引导壳程流体横向流过管束以增强传热效果并减少振动
材料: 碳钢
拉杆与垫片
沿管束长度方向以正确间距固定挡板组件的装配
材料: 碳钢

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Corrosion under insulation at chloride concentration >25 ppm Stress corrosion cracking initiating at tube-to-tubesheet joints Cathodic protection maintaining potential <-0.85V vs Ag/AgCl, thermal spray aluminum coating 150μm thickness
Fluid velocity exceeding 3 m/s causing erosion-corrosion Wall thinning below minimum thickness of 1.65mm for 19mm OD tubes Hardened Inconel 625 sleeves at inlet regions, flow straighteners maintaining Reynolds number <10,000

工程推理

运行范围
范围
0-25 bar differential pressure, 20-300°C temperature gradient
失效边界
35 bar differential pressure causing tube wall yield stress of 250 MPa, 350°C thermal gradient exceeding material creep limit
Thermal fatigue from cyclic stress exceeding 0.2% yield strength (207 MPa for 316L SS), flow-induced vibration at Strouhal numbers >0.2 causing resonant tube failure
制造语境
Tube Bundle 在 机械和设备制造 中会按材料、工艺窗口和检验要求共同评估。

行业别名与关键词

该产品在 CNFX 数据库中的搜索词、别名和技术称呼。

应用产品 / 所属系统

该产品或部件会出现在以下工业系统、设备或上级产品中。

应用匹配与尺寸矩阵

运行限制
pressure:Up to 100 bar (dependent on tube thickness and arrangement)
flow rate:0.5-5 m/s (tube-side fluid velocity)
temperature:-50°C to 400°C (depending on tube material)
slurry concentration:Up to 30% solids by weight (with erosion-resistant materials)
兼容性
Water/steam systemsOil and gas process fluidsChemical process liquids
不适用:Highly corrosive acids (e.g., concentrated sulfuric acid) without specialized alloy tubes
选型所需数据
  • Required heat transfer duty (kW)
  • Fluid properties (density, viscosity, specific heat)
  • Available pressure drop allowance

可靠性与工程风险分析

失效模式与根因
Corrosion-induced perforation
原因:Chemical attack from process fluids, inadequate material selection for service environment, or improper pH control leading to wall thinning and eventual leakage.
Fouling and scaling
原因:Accumulation of deposits (mineral scales, biological growth, or particulate matter) on tube surfaces, reducing heat transfer efficiency and increasing pressure drop.
维护信号
  • Visible external corrosion or weeping at tube-to-tubesheet joints
  • Abnormal pressure drop increase across the bundle or reduced thermal performance
工程建议
  • Implement regular chemical cleaning programs and water treatment to minimize scaling and fouling
  • Use corrosion-resistant materials (e.g., stainless steel, titanium, or coatings) matched to specific process conditions and conduct periodic thickness testing

合规与制造标准

参考标准
ISO 9001:2015 - Quality management systemsASTM A213/A213M - Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger TubesASME BPVC Section VIII - Rules for Construction of Pressure Vessels
制造精度
  • Tube OD: +/-0.1mm
  • Tube wall thickness: +/-10% of nominal thickness
质量检验
  • Hydrostatic Pressure Test
  • Eddy Current Testing (ECT) for material integrity

生产该产品的制造商

具备该产品生产能力的中国制造商与相关工厂资料。

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。

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常见问题

What materials are commonly used for tube bundles in heat exchangers?

Tube bundles are typically manufactured from stainless steel, carbon steel, copper alloys, or titanium, selected based on factors like corrosion resistance, thermal conductivity, and fluid compatibility.

How does a tube bundle improve heat exchanger efficiency?

A tube bundle maximizes surface area through multiple parallel tubes, facilitating efficient thermal energy transfer between fluids while components like baffles direct flow to enhance heat exchange.

What are the key components of a tube bundle assembly?

Key components include tubes, tube sheets, baffles, and tie rods with spacers, which work together to secure the structure and optimize fluid dynamics for reliable performance.

我可以直接联系工厂吗?

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CNFX Industrial Index v2.6.05 · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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