| 概述： |
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HLGJ系列金属刮板流量计是一种容积式流量计量仪表。它用于连接或间断地精密测量管道中流过的液体流量，具有计量精密度高、运转平稳、低噪音、无脉动、流量大、使用寿命长和粘度适应性强等特点，广泛用于石油、化工、轻工、交通、商业等部门，特别适用于原油、渣油、成品油、轻烃等工业介质的计量。
HLGJ Series Metal Scraper Flowmeter is a kind of volume flow-metering instrument and can successively or discontinuously and precisely measure the liquid flow passing through the pipe. It has features of high metering precision, stable running, low noise, no pulsation, large flow, long service life and strong adaptability to viscosity. It is widely applied in the fields of petroleum, chemical industry, light industry, transportation, commerce, etc., especially in the metering of industrial media including crude oil, residual oil, product oil, light hydrocarbon, etc.
该流量计可现场指示，字码直接读数，并可输出电脉冲信号，供显示仪表及计算机处理，从而实现管道流量远距离集中控制。
This flowmeter can indicate on site, and the character code can be read directly. Besides, it can output electrical pulse signals for the processing of display instrument and computer, so as to fulfill the long-distance and centralized control of pipe flow. |
| 产品原理特点： |
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金属刮板流量计的计量室由内壳体和安装在内壳体内的转子壳体及金属刮板组成，这些已知容积的空腔作为流量计的计量单元。流量计的转子靠其进、出口处的微小压差推动旋转，并不断地将进口的液体经空腔计量后送到出口，转子将转动次数经密封联轴器及传动系统传递给计数机构，直接指示出流经流量计的液体总量。
带脉冲发信器的刮板流量计，能输出脉冲信号，可用计算机或电子显示仪表处理，示出流经流量计的液体累积流量和瞬时流量，从而实现各种自动化装置的控制。流量计采用双壳体结构。其优点是可以消除由于压差和管道张力等外力引起流量计腔体变形造成的计量不准确，而且方便于流量计的维修和保养。流量计的显示机构采用两套累积计数机构，小字码计数器可示出流量计的总累积计数，大字码计数器可示出某一时间段的累积计数，并可复零。
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| 技术参数： |
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技术参数 Technical parameters
公称压力:? 1.0 1.6、2.5、4.0、6.4MPa
Nominal pressure: 1.0 1.6, 2.5, 4.0 or 6.4MPa
公称通径：25mm～300mm
Nominal diameter: 25mm～300mm
工作温度：-10℃～+80℃（带散热可达+120℃）
Operating temperature：-10℃～+80℃（to eliminate the heat up to +120℃）
环境温度：-10℃～+50℃
Ambient temperature: -10℃～+50℃
准确度：0.5%、0.2%、0.1%
Precision: 0.5%, 0.2%, 0.1%
输出脉冲幅值：8V
Output pulse amplitude: 8V
输出脉冲频率：＜2800Hz
Output pulse frequency: ＜2800Hz
传输距离：1500m
Transmission distance: 1500m
电源电压：DC12V～DC24V
Supply voltage: DC12V～DC24V
防爆等级：dⅡBT4
Explosion-proof class: dⅡBT4
执行标准：Q/WHH06-2005《金属刮板流量计》和JJG667-97《容积式流量计国家计量检定规程》JJG198-94《速度式流量计国家计量检定规程》。
Executive standards:
Q/WHH06-2005 |
Metal Scraper Flowmeter |
JJG667-97 |
Verification Regulation of Volume Flowmeter |
JJG198-94 |
Verification Regulation of Velocity Flowmeter |
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