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The intelligent target type flowmeter must choose the appropriate capacitive force sensor
2012-4-16 14:51:31

是在原有应变片式靶式流量计测量原理的基础上,采用了最新型电容力传感器作为测量和敏感传递元件,同时利用了现代数字智能处理技术而研制的一种新式流量计量仪表。 SBL type intelligent target flowmeter is based on the original strain gauge target flowmeter measurement principle, using the latest capacitive force sensor as a measurement and sensitive transmission element, while using modern digital intelligent processing technology and developed New flow meter. Capacitive force sensor is the key to the high precision and stability of this new product, which is incomparable with the original strain gauge force sensor. It not only has the characteristics of traditional orifice plate, target type, vortex street and other flowmeters without moving parts, but also has a measurement accuracy comparable to that of volumetric flowmeters, plus its unique anti-interference and anti-impurity performance. It can replace the flow measurement problem that can be measured by conventional flow, especially in the difficult flow measurement conditions such as small flow, high viscosity, easy to set and block, high temperature, strong corrosion, and strong vibration. It has good adaptability. Has been widely used in metallurgy, petroleum, chemical, energy, food, environmental protection and other fields of flow measurement.

由测量装置和力转换器俩部分组成。 The target type flowmeter is composed of a measuring device and a force converter. The measuring device is used to convert the force of the fluid on the target surface into a corresponding displacement. There are two main forms of force converters: force-electric (current) transponders and force-air (pneumatic) converters. Target flowmeters are therefore divided into electric target flowmeters and pneumatic target flowmeters. . The selection of the target type flowmeter is the same as that of the float flowmeter. In addition to considering the accuracy, the nature and state of the measured medium, the range should also be taken into consideration. It must be converted into a standard system according to the actual flow range requirements of the measured fluid under working conditions. Range value. The installation of the target type flowmeter should pay attention to the following issues: 1 There should be 8D long straight pipe section before the target, and there should be 5D long straight pipe section after the target. 2 The flow meter is calibrated and adjusted according to the horizontal position, so it is generally installed horizontally, and a bypass pipe is added to adjust and calibrate the zero point of the meter, and it will not affect production when the meter is maintained. If it must be installed on a vertical pipe, pay attention to the flow direction of the fluid from bottom to top; due to the effect of gravity, a zero point drift will occur, so the zero point must be readjusted after installation. 3 During installation, the center of the target must be concentric with the axis of the pipeline.

适用范围: ●适用于各种公称直径:从DN15~DN2000mm至更大; ●适用于高、低温介质:从-40℃~+260℃;更高温度与生产厂商协商; ●适用于低、中、高压力工况:从0~42Mpa(表压); 产品特点: ●具有多种安装方式供选择,如选择在线插入式,安装费用低; ●具有一体化温度、压力补偿,直接输出质量或标方; ●具有可选小信号切除、非线性修正、滤波时间可选择; ●能准确测量各种常温、高温、低温工况下的气体、液体流量; ●灵敏度极高,能测量超小流量,其可测量低流速为0.08m/s; ●无可动部件,使用安全可靠; ●计量准确,精度可达到0.2%; ●测量范围宽,最大测量范围可达20∶1(液体)或10∶1(气体); ●重复性好,一般为0.05~0.08%,测量快速; ●压力损失小,仅为标准孔板的1/2△P左右;●抗干扰,抗杂质能力特强; ●标定方便,可采用干式标定方法,即 Intelligent target type flowmeter application range: ● Applicable to a variety of nominal diameters: from DN15 ~ DN2000mm to larger; ● Applicable to high and low temperature media: from -40 ℃ ~ + 260 ℃; higher temperature is negotiated with the manufacturer; Applicable to low, medium and high pressure working conditions: from 0 to 42Mpa (gauge pressure); Product features: ● With multiple installation methods to choose from, such as online plug-in, low installation costs; ● Integrated temperature and pressure compensation Direct output quality or standard square; ● With optional small signal removal, non-linear correction, and filtering time; ● It can accurately measure the gas and liquid flow under various normal temperature, high temperature and low temperature conditions; ● High sensitivity, Can measure ultra-small flow rate, which can measure low flow rate of 0.08m / s; (Liquid) or 10: 1 (gas); ● Good repeatability, generally 0.05 ~ 0.08%, fast measurement; ● Small pressure loss, only about 1/2 △ P of standard orifice plate; ● Anti-interference, anti-impurity Very strong ability; Easy calibration, dry calibration method can be used, i.e. With weights hanging weight method. One-button operation can complete the calibration; ● The flow resistance range can be changed according to the actual needs; ● Low-power battery on-site display can directly read the displayed value online, and the display can simultaneously read the instantaneous and cumulative flow and percentage bar graph ; Use the latest GPRS wireless remote transmission technology, especially suitable for field measurement; ● Simple and convenient installation, easy maintenance; ● Various output forms, can transmit various parameters remotely; ● Strong vibration resistance, can measure pulsating flow within a certain range ; ● The instrument has a self-checking program, and the failure phenomenon is clear at a glance. The intelligent target type flowmeter is mainly composed of a measuring tube (housing), a new capacitive force sensor (including a blocking element), an integrated display and an output part. According to different media and working conditions, a suitable capacitive force sensor must be selected. Therefore, the user provides accurate measurement objects and parameters. The manufacturer's choice of a suitable capacitive force sensor is the key to the accurate measurement of the product