行业组件数据 · 2026

管板/集箱

Tube sheets and headers are critical components in tail gas heaters that distribute and collect process fluids through tube bundles for efficient heat transfer.

技术定义与适配语境
典型 管板/集箱 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。

Tube sheets (also called tube plates) are thick, perforated plates that secure and seal the ends of heat exchanger tubes within a shell-and-tube configuration. Headers (or manifolds) are chambers attached to tube sheets that distribute incoming fluid to multiple tubes (inlet header) or collect fluid from tubes (outlet header). In tail gas heaters, these components create the primary heat transfer surface where combustion gases transfer thermal energy to process fluids through tube walls.

组件规格

定义
Tube sheets (also called tube plates) are thick, perforated plates that secure and seal the ends of heat exchanger tubes within a shell-and-tube configuration. Headers (or manifolds) are chambers attached to tube sheets that distribute incoming fluid to multiple tubes (inlet header) or collect fluid from tubes (outlet header). In tail gas heaters, these components create the primary heat transfer surface where combustion gases transfer thermal energy to process fluids through tube walls.
工作原理
Tube sheets provide structural support and pressure boundary between shell-side and tube-side fluids. Headers ensure even fluid distribution across multiple parallel tubes to maximize heat transfer surface area utilization. The working principle involves: 1) Inlet header distributes cold process fluid evenly to all tubes, 2) Tubes conduct heat from hot tail gases to the fluid, 3) Outlet header collects heated fluid from all tubes, 4) Tube sheets maintain tube alignment and prevent fluid mixing between shell and tube sides.
材料
Carbon steel (ASTM A516 Gr.70)stainless steel (304/316L)duplex stainless steel (2205)nickel alloys (Inconel 625)titanium (Grade 2). Material selection depends on temperature (up to 650°C)pressure (up to 150 bar)and corrosion resistance requirements for specific tail gas compositions.
Tube Pattern
Triangular/Square/Rotated
Header Design
Segmental/Radial/Box-type
Tube Pitch Ratio
1.25-1.5 × OD
Temperature Range
-50°C to 650°C
Operating Pressure
10-150 bar
Tube-to-Sheet Joint
Expanded/Welded/Explosive-bonded
Tube Sheet Thickness
25-150 mm
标准
ISO 16812ASME BPVC Section VIIITEMA StandardsDIN 28184

行业分类与别名

管板/集箱 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

Thermal cycling causing differential expansion->Cracking at tube-to-tube sheet joints->Use flexible tube sheet design, proper expansion techniques, and thermal stress analysis
Corrosive tail gas components (H2S, SOx)->Pitting and crevice corrosion in tube sheets->Select corrosion-resistant materials, apply protective coatings, implement corrosion monitoring
Improper fluid distribution in headers->Hot spots and thermal stress concentration->Optimize header design with CFD analysis, install flow distributors, ensure proper fabrication tolerances

工业生态与工程逻辑

0
Stress corrosion cracking
1
Tube-to-tube sheet joint leakage
2
Thermal fatigue cracking
3
Flow-induced vibration
4
Differential thermal expansion
5
Creep at high temperatures

合规与检测

tolerance
Tube hole diameter: ±0.1 mm, Tube sheet flatness: 0.5 mm/m, Header nozzle alignment: ±1.5 mm
test method
Hydrostatic testing (1.5× design pressure), Dye penetrant testing, Ultrasonic testing for thickness and defects, Helium leak testing for tube-to-tube sheet joints

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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 difference between tube sheets and headers?

Tube sheets are structural plates that hold and seal tubes, while headers are distribution/collection chambers that manage fluid flow to/from multiple tubes.

Why are tube sheets typically thicker than other heat exchanger components?

Tube sheets must withstand differential pressure between shell and tube sides, prevent vibration-induced fatigue, and maintain tube alignment under thermal cycling conditions.

How are tube sheets connected to tubes?

Common methods include mechanical expansion (rolling), welding (seal welding or strength welding), or explosive bonding for dissimilar materials.

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CNFX Industrial Component Index · 化学制造

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