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解读对调压器的一般介绍及其选型方法中英文
General introduction of voltage
regulator and its selection method
一、
一般介绍
General introduction
调压器的主要特性参数
The
main characteristic parameters of regulator
适用对象:
Applicable
objects:
介质:
Medium:
设计温度:
Design temperature:
环境温度:
Ambient
temperature:
规格(公称尺寸)
:
Specification ( nominal):
阀口尺寸:
The valve
size:
全开能力、流量系数:
Full capacity, flow coefficient:
承压能力(公称压力)
:
Bearing capacity (nominal pressure ):
出口压力范围、设定值:
Outlet pressure range, the setting
value:
启动差压:
Start pressure:
调压精度:
The
accuracy of the regulator:
关闭精度:
1
/
/
Close the accuracy:
m
、超压切断范围、低压切断范围、设定值:
M, super pressure cutting range, low
cutting range, setting value:
n
、放散压力。
N, releasing pressure.
类型及其特性
The types
and characteristics of
按作用原理分:
直接作用式(大皮膜
)
、间接作用式(指挥器,伺服式)
;
According
to
the
principle
of
action:
direct
action
(
in
the
film
),
indirect
effect
(
command, servo type );
调压对象:后压式、前压式;
Pressure: pressure, pressure after the
object before;
按流动方向分:曲流式、轴流式;
According to the flow direction:
meander type, axial flow type;
按阀口密封分:软
密式(无泄漏)
、硬密式(微泄漏)
;
According to valve sealing points: the
soft sealing type ( no leakage ), hard sealing
type ( leakage);
按阀口形式分:单阀口、
双阀口;盘形、锥形、塞形、孔口形;阀式、膜式(平、
套形)等(阀门特性不同)
p>
;
According to the
valve port forms : single valve, dual valve port;
disc, conical, plug,
hole
shape;
valve
type,
film
type
(
flat,
shape
),
(
the
valve
characteristics
of
different );
按
调压器功能分:
普通式、
两极、
监控式
、
一体切断式、
内置放散式、
电控
p>
(动)
式、组合式等。
According to the voltage regulator
functions : ordinary type, bipolar, monitoring,
one
off, a built-in discharge type,
control ( dynamic ) type, combination type etc..
国内常用的进口调压器制造厂家及产品特点
The commonly used imported regulator
manufacturer and product characteristics
ELSTER
(德、美、英)
:轴流、径向流、中低压、地
下;
ELSTER ( Germany and the
United States, Britain ): axial, radial flow, low
pressure,
2
/
/
underground; <
/p>
TARTARINI
(意)
:轴流、高中
低、多功能、地下、站;
TARTARINI (
Italy ): axial flow, high and low,
multifunctional, underground, station;
RMG
(德、英)
:轴流、高中低、多功能、地下、站、多指挥
器、皮膜型式、阀
口材料;
RMG
(
German,
English
):
axial
flow,
high
and
low,
multifunctional,
underground,
stations,
director, film type, valve material;
FI
ORENTINI
(意)
:高中低、多功能、地下、站;
FIORENTINI ( Italy ): high
low, multifunctional, underground, station;
FISHER
(美)
:高中低、多功能、站(地下)
。
FISHER (US ):
high low, multifunctional, station ( underground
).
二、调压器的工作能力的估算
Estimation of the regulator operation
ability
最大工作能力定义:
对于规定的介质,
在设计的进出口压力下,
调压器的阀口完
全打
开时的工作能力。
Defines the maximum
capacity: provisions of the media, in the design
of the import
and export pressure,
pressure regulator valve is fully open working
ability.
可用流量系数(
KG
)来衡量调压器工作能力的大小:
Available
flow coefficient ( KG ) to measure the regulator
operation ability:
KG
(
C2
)
的
物
理
含
义
是
:
在
标
准
状
态
下<
/p>
,
介
质
为
天
然
气
(
密
度
=0.38kg/m3(RMG)
、
0.78kg/m3(ELSTE)
、
0.72kg/m3(TARTARINI)
)
,进口压力为
1bar
(相对)
,出
口压力为常压,调压器的最大工作能力。
KG ( C2 )
physical meaning is: in the standard state, medium
is natural gas ( density
=0.38kg/m3
(
RMG
),
0.78kg/m3
(
ELSTE
),
0.72kg/m3
(
TARTARINI
)
),
1bar
(
relative
)
inlet
pressure,
outlet
pressure
is
atmospheric
pressure,
the
maximum
working capacity
regulator.
流量计算公式
Calculation formula of the flow
理论上计算方法大家已经了解,但
是,使用比较麻烦,因此,大家都使用简
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