CS69内螺纹疏水阀

CS69内螺纹疏水阀是一种利用热动力学原理工作的蒸汽疏水阀。其阀体两端采用内螺纹连接，结构极其紧凑，是蒸汽系统中用于自动、有效地排除凝结水、空气及其他不凝性气体，并同时阻止蒸汽泄漏的关键装置。该型号疏水阀以其体积小、耐水击、排空气性能好和背压率高等特点，广泛应用于中小负荷的蒸汽加热设备和蒸汽管网中。

CS69内螺纹疏水阀工作原理（热动力学原理）

阀内有一个独有的活动部件——碟片。

1. 启动/排空气阶段： 设备启动时，冷空气和凝结水流入阀内，压力顶开碟片，大量冷凝水被迅速排出。

2. 排放凝结水阶段： 当热凝结水接近蒸汽温度流经碟片下方时，部分闪蒸为二次蒸汽。这股高速流动的蒸汽在碟片下方产生一个低压区，同时蒸汽进入碟片上方空腔，由于上腔蒸汽面积大于下腔，形成向下的压力差，使碟片迅速关闭。

3. CS69内螺纹疏水阀关闭/密封阶段： 碟片关闭后，上方空腔的蒸汽逐渐冷却凝结，压力下降。当下方凝结水压力再次顶开碟片时，新的循环开始。

CS69内螺纹疏水阀主要特点

1. CS69内螺纹疏水阀结构简单，坚固耐用： 只有一个活动部件（碟片），抗水击和腐蚀性能强，使用寿命长。

2. CS69内螺纹疏水阀体积小巧： 内螺纹连接和紧凑的设计使其非常适合空间狭窄的安装点。

3. 抗冻性： 当阀体为不锈钢材质时，具有一定的抗冻能力。

4. CS69内螺纹疏水阀可在线维护： 多数设计带有内置滤网，且内部组件（碟片、阀座）可作为一个整体组件方便地取出检查和更换，无需将阀体从管道上拆下。

5. 适用于高压： 能胜任中高压蒸汽系统。

CS69内螺纹疏水阀应用领域

· 蒸汽主管线： 作为主管线疏水点。

· 热交换器、伴热管线。

· 蒸汽滚筒、分汽缸。

· 其他需要快速排除大量冷凝水的设备。

Product Overview of CS69 Internal Threaded Steam Trap

Product Introduction

The CS69 Internal Threaded Steam Trap is a thermodynamic steam trap that operates on the thermodynamic principle.With internal threaded connections at both ends  an extremely compact structure, it is a crucial device in steam systems designed to automatically  efficiently discharge condensate, air,  other non-condensable gases while preventing live steam loss. Known for its small size, resistance to water hammer, good air venting capability,  high backpressure tolerance, this model is widely used in steam heating equipment  steam pipelines with small to medium loads.

Working Principle (Thermodynamic)

It contains a single moving part– a disc.

1. Start-up / Air Venting Phase: During start-up, cold air  condensate enter the trap, pushing the disc open  allowing large quantities of condensate to be discharged rapidly.

2. Condensate Discharge Phase: When hot condensate near steam temperature flows under the disc, some of it flashes into secondary steam. This high-velocity steam creates a low-pressure area beneath the disc. Simultaneously, steam enters the chamber above the disc. Because the surface area on top of the disc is larger than below, a resultant downward force snaps the disc shut.

3. Closing / Sealing Phase: After the disc closes, the steam in the upper chamber gradually condenses  cools, causing the pressure to drop. When the condensate pressure below again exceeds the pressure above, the disc opens,  a new cycle begins.

Main Features

1. Simple  Robust Construction: With only one moving part (the disc), it offers strong resistance to water hammer  corrosion, ensuring a long service life.

2. Compact Size: The internal threaded connections  compact design make it ideal for installations  space is limited.

3. Freeze Resistance: When the body is made of stainless steel, it exhibits good freeze resistance.

4. In-Line Maintenance: Most designs include a built-in strainer,  the internal assembly (disc  seat) can be easily removed as a cartridge for inspection  replacement without disconnecting the trap body  the pipeline.

5. Suitable for High Pressure: Capable of functioning effectively in medium  high-pressure steam systems.

Application Fields

· Steam Mains: As drainage points for main steam lines.

· Heat Exchangers, Tracer Lines.

· Steam Drums, Steam Headers.

· Other equipment requiring rapid removal of large volumes of condensate.

核心术语中英对照：

· CS69内螺纹疏水阀：CS69 Internal Threaded Steam Trap

· 疏水阀：Steam Trap

· 热动力学原理：Thermodynamic Principle

· 内螺纹连接：Internal Threaded Connection

· 凝结水：Condensate

· 不凝性气体：Non-condensable Gases

· 碟片：Disc

· 闪蒸蒸汽：Flash Steam

· 水击：Water Hammer

· 背压率：Backpressure Tolerance

· 在线维护：In-Line Maintenance

· 内置滤网：Built-in Strainer