行业组件数据 · 2026

给水入口

Feedwater inlet is a critical component in steam drum systems that introduces treated water into the steam drum for steam generation.

技术定义与适配语境
典型 给水入口 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 feedwater inlet is a specialized piping connection or nozzle assembly designed to introduce preheated, treated feedwater into the steam drum of a boiler system. This component ensures controlled water entry to maintain proper water level, prevent thermal shock, and facilitate efficient steam separation. It typically incorporates features like internal distribution headers, diffusers, or spargers to distribute water evenly and minimize turbulence within the drum.

组件规格

定义
The feedwater inlet is a specialized piping connection or nozzle assembly designed to introduce preheated, treated feedwater into the steam drum of a boiler system. This component ensures controlled water entry to maintain proper water level, prevent thermal shock, and facilitate efficient steam separation. It typically incorporates features like internal distribution headers, diffusers, or spargers to distribute water evenly and minimize turbulence within the drum.
工作原理
The feedwater inlet operates by receiving pressurized, treated water from the economizer or feedwater pumps and introducing it into the steam drum through a controlled entry point. The design ensures the incoming water mixes with the existing water inventory with minimal disturbance to the steam-water interface, maintaining thermal equilibrium and preventing rapid temperature changes that could cause thermal stress. Advanced designs may include thermal sleeves or diffusers to further reduce thermal gradients.
材料
Carbon steel (ASTM A106 Gr.BASTM A516 Gr.70)stainless steel (ASTM A312 TP304/316)alloy steels (ASTM A335 P11/P22) with corrosion-resistant coatings or cladding for high-temperature/pressure applications.
Size Range
1" to 12" NB (25 to 300 mm)
Connection Type
Flanged (ANSI B16.5), welded (socket weld or butt weld)
Pressure Rating
150-2500 psi (10-172 bar)
Design Standards
ASME Boiler and Pressure Vessel Code, Section I
Temperature Range
Up to 650°F (343°C)
标准
ISO 9330-1DIN 2448ASME B31.1

行业分类与别名

给水入口 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 between feedwater and drum temperatures->Crack formation at weld joints or nozzle neck->Use thermal sleeves, proper material selection, and controlled heating/cooling rates
High-velocity feedwater flow->Erosion of internal surfaces leading to wall thinning->Implement flow diffusers, maintain proper water treatment, and regular thickness monitoring

工业生态与工程逻辑

0
Thermal fatigue from temperature cycling
1
Erosion-corrosion at high flow velocities
2
Water hammer during rapid valve operations
3
Improper installation causing leaks or stress concentrations

合规与检测

tolerance
Dimensional tolerances per ASME B16.25: ±1/64" for bore alignment, ±1° for angular alignment
test method
Hydrostatic testing at 1.5x design pressure, radiographic examination (RT) of welds, ultrasonic testing (UT) for material integrity

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 feedwater inlet in a steam drum?

The primary function is to introduce treated, preheated water into the steam drum while minimizing thermal shock and maintaining stable water level for efficient steam generation.

How does feedwater inlet design prevent thermal stress?

Through features like thermal sleeves, diffusers, or spargers that distribute water gradually and mix it with existing drum water to reduce temperature differentials.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 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。

请求制造能力信息: 给水入口

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 给水入口?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
结果缓冲区
下一个组件
绝缘/屏蔽组件
URN:CNFX:ME:UNIT:FEEDWATER_INLET