行业组件数据 · 2026

支撑裙座

A structural support component that transfers loads from a pressure vessel shell to its foundation while accommodating thermal expansion.

技术定义与适配语境
典型 支撑裙座 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。

The Support Skirt is a cylindrical or conical structural attachment welded to the bottom of a pressure vessel shell, designed to provide stable support, distribute vertical and lateral loads to the foundation, and allow for thermal expansion and contraction of the vessel. It typically includes features like anchor bolt rings, gussets, and access openings for inspection and maintenance.

组件规格

定义
The Support Skirt is a cylindrical or conical structural attachment welded to the bottom of a pressure vessel shell, designed to provide stable support, distribute vertical and lateral loads to the foundation, and allow for thermal expansion and contraction of the vessel. It typically includes features like anchor bolt rings, gussets, and access openings for inspection and maintenance.
工作原理
The Support Skirt functions by transferring the weight of the pressure vessel and its contents, along with operational loads (wind, seismic), through its welded connection to the shell, down to the foundation via anchor bolts. It is engineered to withstand compressive, tensile, and bending stresses while accommodating thermal growth through its flexibility and design, preventing stress concentrations in the vessel shell.
材料
Carbon steel (e.g.ASTM A36A516 Gr. 70)low-alloy steel (e.g.ASTM A387 Gr. 11/22)or stainless steel (e.g.ASTM A240 304/316)selected based on temperaturecorrosion resistanceand mechanical requirements. Thickness typically ranges from 10 mm to 50 mm.
Height
500-3000 mm
Diameter
Matches vessel shell OD
Thickness
10-50 mm
Design Pressure
N/A (non-pressure part)
Design Temperature
-50°C to 400°C
Anchor Bolt Circle Diameter
As per foundation design
标准
ISO 28300ASME BPVC Section VIIIDIN 28011

行业分类与别名

支撑裙座 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 weld quality or design->Crack propagation leading to structural failure->Follow ASME welding procedures, conduct NDT inspections
Corrosion from moisture or chemicals->Thinning and loss of structural integrity->Use corrosion-resistant materials, apply protective coatings, ensure drainage
Thermal expansion mismatch->Excessive stress in vessel shell or skirt->Design with flexibility, include expansion joints if needed

工业生态与工程逻辑

0
Weld cracking due to thermal cycling
1
Corrosion at the skirt-to-shell junction
2
Foundation settlement causing misalignment
3
Overstress from seismic or wind loads

合规与检测

tolerance
±2 mm for diameter and height, ±1° for perpendicularity to vessel axis
test method
Visual inspection, ultrasonic testing (UT) of welds, dimensional checks, load testing if required

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 Support Skirt?

To support the pressure vessel, transfer loads to the foundation, and accommodate thermal expansion without stressing the vessel shell.

How is a Support Skirt attached to the pressure vessel?

It is welded to the bottom of the vessel shell, often with a continuous full-penetration weld to ensure structural integrity.

What materials are commonly used for Support Skirts?

Carbon steel like ASTM A516 for general use, or stainless steel for corrosive environments, depending on temperature and service conditions.

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CNFX Industrial Component Index · 机械和设备制造

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URN:CNFX:ME:UNIT:SUPPORT_SKIRT