当前位置:首页  >  产品展示  >  疏水阀  >  热静力型疏水阀  >  膜合式疏水阀 膜合式疏水阀
膜盒式疏水阀-SM6

产品介绍:

    膜盒式蒸汽疏水阀的主要动作元件是金属膜盒,内充一种气化温度比水的饱和温度低的液体。装置刚启动时,管道出现低温冷凝水,膜盒内的液体处于冷凝状态,阀门处于开启位置。当冷凝水温度渐渐升高,膜盒内充液开始蒸发,膜盒内压力上升,膜片带动阀芯向关闭方向移动,在冷凝水达到饱和温度之前,疏水阀完全关闭。膜盒随蒸汽温度变化控制阀门开关,起到阻汽排水作用。有开阀温度低于饱和温度15℃和30℃两种膜盒供选择。
    膜盒式蒸汽疏水阀(蒸汽压力平衡式)工作时阀前存有高温凝结水,无蒸汽泄漏,节能效果显著。
    膜盒式在现如今蒸汽管线中是代替低压(压力在PN25以下)热动力(圆盘式)疏水阀或(压力在PN16以下)双金属片式疏水阀的理想替代品。
Bellows Trap
The main acting unit of bellows,which is filled with a ytpe of liquid with gasification temperature lower than water's saturation temperature.When the device just starts,there appears condensate with low temperature in conduits and the liquid in the bellows is in the condensed state.The trap is turned on.When the temperature of condensate water gradually goes up,the liquid in the bellows begins to vaporize and the pressure within it increases.Consequently,the film drives the valve core to move towards the closing direction.Before the condensate water reaches its saturation temperature,the trap is completely shut down.The bellows controls the opening and closing of valves in accordance with steam temperature changes so as to resist steam and discharge water.Available are two alternative bellows with opening temperature 15℃ or 30℃ lower than saturation temperature.

There is high temperature condensate in front of the Bellows Trap (steam pressure balance type) when it works, and there is no steam leakage, so the energy saving effect is significant.

Bellows trap,among all existing steam pipes,are presently the ideal substitute of low-pressure (with pressure below PN25)hot motive (disc)traps or bimetallic elements traps (with pressure below PN16).

优点:
1、动作速度快,零泄漏。
2、结构简单,维护方便。
3、部件全部采用合金处理的不锈钢,耐磨,耐气蚀,使用寿命长。
4、排空能力强,排水迅速,安装方式随意。
5、可以实现多个膜盒组合,适用于大的排量场合。
6、具有良好的排空气性能,不怕冻,零泄漏,背压率达到75%。
1.Quick acting speed and zero leakage.
2.Simple structure and convenient maintenance.
3.All components made of alloy-treated stainless steel,resistant to wearing,gas corrosion,long durability.
4.Good emptying capability with quick discharge and easy installation.
5.Capable of combination of multiple bellows,suitable for large discharge.
6.Good air discharge capability,with coldness resistance,zero leakage and backpressure of 75%.


膜盒式疏水阀/BELLOWS TRAP

    


技术参数/Technique parameter

壳体压力等级

Shell

pressure

grade

负荷泄漏率

Load

leakage

使用介质

Used

medium

允许背压率

Permitted

 backpressure

rate

节能效果

Energy

saving

effect

 

最大工作压差

Maximum

operating

pressure

differential

1.6、2.5MPA

0%

蒸汽、凝结水

Steam、

Condensate

 water

75%

优秀

Excellence

1.6MPA

 

最小过冷度

Minimum

 subcooled

temperature

排水方式

Drainage

method

最高允许温度

Maximum

 allowable

 temperature

排空气装置

Air

 exhaust

system

抗冻性

Freezing

resistance

抗水击

Resis

0℃

间接方式

Indirect way

350℃

自动  

Automatic

优秀 

Excellence

适应

 Adaption


主要零件材料/The materials of primary accessories

零部件名称

Part and component name

材质Material

阀体、阀盖

Valve body、Valve cover

锻钢、不锈钢

Forged steel、Stainless steel

膜盒

Bellows

哈氏合金

Hastelloy alloy

阀座

Valve seat

STL合金

STL Alloy

过滤网

Filtrating screen

不锈钢

Stainless steel



外形尺寸和重量/Prime out-form dimensions and weigh

产品型号

Product

model

口径(DN)

Calibre

L法兰

Flange

L螺纹/

焊接

Thread/

welding

H1

H2

W

重量(kg)

weight

使用压力

范围(MPa)

Pressure

 Change

 range

公称压力

(MPa)

Nominal

pressure

SM16

SM46

15~20

25

150

160

100

110

58

20

68

1.9

2.5

3.9

5

0.1-1.6

2.5

SM46

32~40

50

220

230

150

160

68

68

90

5

13

0.1-1.6

2.5

SM46

65~100

310

-

120

95

150

24

0.1-1.6

2.5




注解
1、选型时请提供工作压力、工作压差、凝结水发生量、工作温度、连接方式及标准。
2、凝结水负荷的安全系数一般为2~3倍。
3、正确安装、定期保养清除阀内污物,保证疏水阀正常工作和延长使用寿命。
Note
1.Please provide operating pressure and operating pressure difference,generating quantity of condensate water,operating temperature,connecting mode and standards in selecting product models.
2.The load of condensate Water's safety coefficient reaches 2 to 3 times in general.
3.Please make sure the drain valve is installed properly,maintained regularly,cleaned up and operates under the normal condition,so as to extend its service life.

在线客服

点击这里给我发消息 点击这里给我发消息 点击这里给我发消息
分享