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解读对调压器的一般介绍及其选型方法中英文

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2021-03-02 17:37
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2021年3月2日发(作者:生物学家)



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)




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


(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














下< /p>









< p>



=0.38kg/m3(RMG)

< p>


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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