"Times New Roman"">金属转子流量计- "Times New Roman"">江苏华伟远航自动化仪表有限公司
"Times New Roman"">一、金属转子流量计产品概述
"Times New Roman"">金属管浮子流量计是工业自动化过程控制中常用的一种流量测量仪表,它具有压损小,
mso-hansi-font-family:"Times New Roman"">检测范围大(量程比10:1 "Times New Roman"">),使用方便等特点,它可用来测量液体,气体以及蒸汽的流量,特别适宜低流速小流量的介质流量测量。
H mso-hansi-font-family:"Times New Roman"">W50 "Times New Roman"">系列金属管浮子流量计有就地显示型和智能远传型,带有指针显示,瞬时流量,累积流量,液晶显示,上下限报警输出,累积脉冲输出,标准的二线制4-20mA mso-hansi-font-family:"Times New Roman"">电流输出等多种形式,为用户提供了非常广阔的选择空间。另外该仪表采用高质量的MCU mso-hansi-font-family:"Times New Roman"">微处理系统,保证了流量计在各种应用场所的优良性能。
mso-hansi-font-family:"Times New Roman"">多年来金属管流量计的各种优良性能和可靠性,以及较好的性能价格比广泛受到了石化、钢铁、电力、冶金、轻工等行业的青睐。
"Times New Roman"">二、金属转子流量计结构原理
1 mso-hansi-font-family:"Times New Roman"">、结构
HW50 mso-hansi-font-family:"Times New Roman"">系列金属管浮子流量计主要由三大部分组成
a mso-hansi-font-family:"Times New Roman"">、指示器(智能型指示器,就地指示器)
b mso-hansi-font-family:"Times New Roman"">、浮子
c mso-hansi-font-family:"Times New Roman"">、锥形测量室
2 mso-hansi-font-family:"Times New Roman"">、工作原理
"Times New Roman"">被测介质自下而上经锥形测量管时浮子的上下端产生差压形成上升的力,当浮子所受上升力大于浸在流体中浮子重量,浮子便上升,环隙面积就随之增大,环隙处流体流速立即下降,浮子上下端差压降低,作用于浮子的上升力亦随着减少,直到上升力等于浸在流体中浮子重量时,浮子便稳定在某一高度。浮子位置的高低即对应着被测介质流量的大小。浮子内置磁钢,在浮子随介质上下移动时,磁场随浮子的移动而变化。
a mso-hansi-font-family:"Times New Roman"">、对于就地型,由就地指示器中的旋转磁钢与浮子内磁钢耦合,而发生转动,同时带动指针,通过刻度盘指示出此时的流量大小。
对于智能型,由智能型指示器中的一个固态磁传感器将磁场的变化转化成电信号,经A/D mso-hansi-font-family:"Times New Roman"">变换、微处理器,D/A "Times New Roman"">输出,LCD液晶显示,来显示出流量的大小及累积流量。
"Times New Roman"">三、金属转子流量计主要特点
1. mso-hansi-font-family:"Times New Roman"">适用于小管径和低流速
2. mso-hansi-font-family:"Times New Roman"">工作可靠、维护量小、寿命长
3. mso-hansi-font-family:"Times New Roman"">对于下游直管段要求不高
4. mso-hansi-font-family:"Times New Roman"">有较宽的流量范围度10:1
5. mso-hansi-font-family:"Times New Roman"">就地型指针指示接近于线性
6. mso-hansi-font-family:"Times New Roman"">智能型指示器带有LCD "Times New Roman"">液晶显示,可显示瞬时、累积流量,还可输出脉冲、输出报警
7. mso-hansi-font-family:"Times New Roman"">带有温度补偿
8. mso-hansi-font-family:"Times New Roman"">有就地型、远传型、夹套型、防爆、耐腐等多种形式
"Times New Roman"">四、主要技术参数
1 mso-hansi-font-family:"Times New Roman"">、测量范围:水2.5 "Times New Roman"">~
2 mso-hansi-font-family:"Times New Roman"">、量程比:10:1
3 mso-hansi-font-family:"Times New Roman"">、精度等级:1.0 "Times New Roman"">、1.5、2.5
4 mso-hansi-font-family:"Times New Roman"">、工作压力:DN15 "Times New Roman"">、DN25、DN50 mso-hansi-font-family:"Times New Roman"">为PN4.0MPa "Times New Roman"">最大为10.0MPa "Times New Roman"">、DN80、DN100 mso-hansi-font-family:"Times New Roman"">为PN1.6MPa "Times New Roman"">最大为6.4MPa
5 mso-hansi-font-family:"Times New Roman"">、介质温度:
6 mso-hansi-font-family:"Times New Roman"">、介质粘度:DN15 "Times New Roman"">:η<5mPa·s "Times New Roman"">(F15.1~F15.3 mso-hansi-font-family:"Times New Roman"">)
η<30mPa·s mso-hansi-font-family:"Times New Roman"">(F15.4 "Times New Roman"">~F15.8)
DN25 mso-hansi-font-family:"Times New Roman"">:η<250mPa·s
DN50 mso-hansi-font-family:"Times New Roman"">~DN150 "Times New Roman"">:η<300mPa·s
7 mso-hansi-font-family:"Times New Roman"">、环境温度:液晶型:
mso-hansi-font-family:"Times New Roman"">指针型:
8 mso-hansi-font-family:"Times New Roman"">、连接形式:法兰(执行标准DIN2501 "Times New Roman"">或按用户提供法兰标准制造)
9 mso-hansi-font-family:"Times New Roman"">、仪表高度:
10、电缆接口:M20*1.5
11 mso-hansi-font-family:"Times New Roman"">、供电电源:24VDC "Times New Roman"">二线制4~20mA mso-hansi-font-family:"Times New Roman"">或85 "Times New Roman"">~265VAC 50/60Hz "Times New Roman"">(远传型)
12 mso-hansi-font-family:"Times New Roman"">、报警输出:上限或下限瞬时流量报警 "Times New Roman"">继电器输出(触点容量最大
13 mso-hansi-font-family:"Times New Roman"">、脉冲输出:累积脉冲输出,最小间隔每10 mso-hansi-font-family:"Times New Roman"">秒一个脉冲(交流型)或每50 "Times New Roman"">毫秒一个脉冲。
14 mso-hansi-font-family:"Times New Roman"">、液晶显示:双排液晶显示,显示瞬时流量及累积流量。
15 mso-hansi-font-family:"Times New Roman"">、本安防爆:Exia II CT4
16 mso-hansi-font-family:"Times New Roman"">、测量管材质:316 "Times New Roman"">不锈钢(普通型)或内衬聚四氟乙烯(防腐型)
"Times New Roman"">金属转子流量计产品选型
"Times New Roman"">代号 |
"Times New Roman"">测量管结构 |
|||||||
HW-50 |
"Times New Roman"">下进上出 |
|||||||
HW-51 |
"Times New Roman"">下进上横出 |
|||||||
HW-52 |
"Times New Roman"">下横进上横出 |
|||||||
HW-53R |
"Times New Roman"">右进左出 |
|||||||
HW |
"Times New Roman"">左进右出 |
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">接液材质 |
||||||
R0 |
0Cr18Ni2Mo2Ti |
|||||||
R1 |
1Cr18Ni9Ti |
|||||||
Rp |
PTFE |
|||||||
T1 |
"Times New Roman"">钛合金 |
|||||||
Rl |
|
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">管道口径 |
||||||
DN15 |
15 |
|||||||
DN25 |
25 |
|||||||
DN50 |
50 |
|||||||
DN80 |
80 |
|||||||
DN100 |
100 |
|||||||
DN150 |
150 |
|||||||
DN200 |
200 |
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">附加结构 |
||||||
"Times New Roman"">无 |
|
|||||||
T |
"Times New Roman"">夹套型 |
|||||||
Z |
"Times New Roman"">阻尼型 |
|||||||
G |
"Times New Roman"">高温型 |
|||||||
Y |
"Times New Roman"">高压型 |
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">指示器形式代码组合 |
||||||
M1 |
"Times New Roman"">就地指示器,机械指示瞬时流量 |
|||||||
M2 |
"Times New Roman"">供电型,机械指示瞬时流量,液晶显示瞬时/ "Times New Roman"">累积流量 |
|||||||
M3 |
"Times New Roman"">供电型,无机械指示,液晶显示瞬时/ "Times New Roman"">累积流量 |
|||||||
|
"Times New Roman"">代码 |
"Times New Roman"">供电方式 |
||||||
"Times New Roman"">无 |
"Times New Roman"">只限M1指示器 |
|||||||
A |
220VAC,4 mso-hansi-font-family:"Times New Roman"">-20mA "Times New Roman"">输出 |
|||||||
B |
"Times New Roman"">电池供电,无输出 |
|||||||
C |
24VDC,二线制供电,4 mso-hansi-font-family:"Times New Roman"">-20mA "Times New Roman"">输出 |
|||||||
D |
24VDC,三、四线制供电,4 mso-hansi-font-family:"Times New Roman"">-20mA "Times New Roman"">输出 |
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">防爆标志 |
||||||
l |
"Times New Roman"">本安iaCT5 "Times New Roman"">方型壳体 |
|||||||
d |
"Times New Roman"">隔爆Diibt4 "Times New Roman"">园壳体 |
|||||||
|
"Times New Roman"">代号 |
"Times New Roman"">报警或脉冲输出 |
||||||
"Times New Roman"">无 |
"Times New Roman"">无报警或脉冲输出 |
|||||||
K1 |
"Times New Roman"">上限报警或一路脉冲输出 |
|||||||
K2 |
"Times New Roman"">下限报警或一路脉冲输出 |
|||||||
K3 |
"Times New Roman"">上、下限报警或双路脉冲输出 |
"Times New Roman"">金属转子流量计- "Times New Roman"">江苏华伟远航自动化仪表有限公司