行业组件数据 · 2026

管程隔板

Tube sheet partitions that separate fluid passes in shell-and-tube heat exchangers for optimized thermal performance.

技术定义与适配语境
典型 管程隔板 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Pass partitions are structural components installed within tube sheets or headers of shell-and-tube heat exchangers to create multiple fluid passes. They direct the tube-side fluid through specific tube bundle sections in a predetermined sequence, controlling flow path length and velocity to achieve desired heat transfer coefficients and temperature profiles. These partitions are precision-engineered to withstand thermal expansion, pressure differentials, and corrosive environments while maintaining leak-tight seals between adjacent passes.

组件规格

定义
Pass partitions are structural components installed within tube sheets or headers of shell-and-tube heat exchangers to create multiple fluid passes. They direct the tube-side fluid through specific tube bundle sections in a predetermined sequence, controlling flow path length and velocity to achieve desired heat transfer coefficients and temperature profiles. These partitions are precision-engineered to withstand thermal expansion, pressure differentials, and corrosive environments while maintaining leak-tight seals between adjacent passes.
工作原理
Pass partitions function by physically dividing the tube-side header into compartments, forcing the working fluid to traverse the tube bundle multiple times before exiting. This multi-pass arrangement increases fluid velocity and residence time, enhancing convective heat transfer coefficients. The partitions create serial flow paths that optimize logarithmic mean temperature difference (LMTD) and prevent fluid bypassing, ensuring uniform thermal loading across the heat exchanger surface.
材料
Carbon steel (ASTM A516 Gr.70)stainless steel (316L304L)duplex stainless steel (2205)nickel alloys (Inconel 625Monel 400)titanium (Grade 2)copper-nickel (90/1070/30) with corrosion allowances per NACE MR0175 for sour service.
Thickness
12-50 mm
Leakage Rate
<0.01% of flow rate per TEMA RCB-4.151
Surface Finish
Ra 3.2 μm max
Pressure Rating
Up to 3000 psi (207 bar)
Temperature Range
-50°C to 400°C
Flatness Tolerance
±0.5 mm/m
标准
ISO 16812DIN 28184ASME BPVC Section VIIITEMA Class R

行业分类与别名

管程隔板 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

Inadequate thermal expansion accommodation->Partition buckling or weld cracking->Implement expansion joints, use flexible designs, and calculate thermal stresses per ASME Section VIII Div.2
Crevice corrosion in stagnant zones->Leakage between passes->Specify corrosion-resistant alloys, ensure complete drainage, and apply protective coatings per NACE SP0169
High-velocity fluid impingement->Erosion at partition edges->Install wear plates, radius all edges, and maintain velocities below 3 m/s for liquids, 30 m/s for vapors

工业生态与工程逻辑

0
Thermal stress cracking due to differential expansion
1
Corrosion at partition-to-tube sheet welds
2
Flow-induced vibration damage
3
Gasket failure causing cross-pass contamination
4
Erosion at high-velocity turnarounds

合规与检测

tolerance
Dimensional tolerances per ASME Y14.5, flatness within 0.8 mm over entire surface, perpendicularity within 0.5° to tube sheet face
test method
Hydrostatic testing at 1.5x design pressure per ASME BPVC Section VIII, dye penetrant examination of all welds, ultrasonic thickness verification

制造该组件的工厂

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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 primary function of pass partitions in heat exchangers?

Pass partitions create multiple tube-side fluid passes to increase velocity and improve heat transfer efficiency by optimizing flow path length and temperature differentials.

How do pass partitions affect maintenance accessibility?

Properly designed partitions allow for tube bundle removal and cleaning while maintaining structural integrity; removable partitions are available for high-fouling applications.

What materials are suitable for corrosive service conditions?

Duplex stainless steels, nickel alloys, and titanium offer excellent corrosion resistance in chloride, acidic, or high-temperature environments per ASTM and NACE standards.

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CNFX Industrial Component Index · 机械和设备制造

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URN:CNFX:ME:UNIT:PASS_PARTITIONS