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热动力式疏水阀-SC312

产品介绍:

    装置刚启动时,首先在较低的压力下空气和冷凝水流过疏水阀,通过入口孔托起阀片,再由出口孔排出,当压力、温度上升后,内压上升,推动凝结水量增多,而增大流速,这时阀片下的静压降低,使阀片下落,蒸汽从出口孔中间由四周流向阀片和阀盖之间的间隙,进入压力室,将阀片压在密封环上,关闭阀门。当压力室的蒸汽温度降低,开始冷凝,使压力室内的压力降低,进口压力托起阀片,疏水阀开启进行排水。
Disc Trap
When starting the device,firstly,the air and condensed water will flow across steam trap under rather low pressure,and lift valve plate through the entrance hole,and then discharge from the exit hole.After the pressure and temperature rise,the inner pressure will also rise,and cause increased amount of condensed water and increased flow rate,at the moment, the static pressure of valve plate declines which causes the drop of valve plate,and then,the steam flows from all directions via the exit hole into the gap between the valve plate and the valve cover.After steam enters the pressure chamber,it shuts down the valve by pressing valve plate onto the sealing ring.When the steam temperature inside the pressure chamber begins descending and the steam begins to congeal,the pressure declines in the pressure chamber,and the inlet pressure lifets the valve plate,and then the steam trap opens and discharge water.
优点:
1、结构简单,容易安装和维修,抗水击,排空性能优越。
2、抗水击,对压力突然变化没有影响。
3、可用于过热蒸汽系统。
4、可以使用高压高温的蒸汽管线。
Merits
1.Simple structure,easy installation and maintenance and water hammer resistant.
2.Water hammer resistant and on effect from abrupt change of pressure.
3.Adoptable for overheat steam system.
4.Adoptable for high-pressure and high-temperature steam pipes.

热动力式疏水阀/THERMO-DYNAMIC 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

壳体材质

Shell material

允许背压率

Permitted

 backpressure

rate

1.6~4.0MPA

0.3%

蒸汽、凝结水

Steam、

Condensate

water

锻钢、不锈钢、

合金钢

Forged steel、

Stainless steel、

Alloy steel

75%

最大工作压差

Maximum

 operating

pressure

 differential

使用过热蒸汽

Use

 Superheated

 steam

最高允许温度

Maximum

Allowable

 temperature

抗水击

Resis

压力变化范围

Pressure

 change

range

4.0MPA

优秀

Excellence

420℃~550℃

适应 Adaption

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、合金钢

Forged steel、Stainless steel、Alloy steel

阀片

 Valve plate

高铬不锈钢

High chrome stainless steel

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

SC312

15-20

25

-

90

95

68

55

70

2.5

0.1-2.5

4.0

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.

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