文档介绍：1 ■1 概述腰轮流量计是用于对管道中流量进行连续或间歇测量的高精度计量仪表。它具有精度高、可靠性好、重量轻、寿命长、安装使用方便等特点,是容积式流量计的典型特点。腰轮流量计主要由计量腔、密封联轴器和计数器三部分组成。可现场指示累积流量和瞬时流量,配以发信器及流量智能控制仪,可实现远距离测量和控制。广泛用于石油、化工、电力、冶金、交通、食品加工、医药、国防、商业贸易等部门对石油及石油制品、化学溶液等流体的精确测量。■ 1. summarize Lumbar wheel flow meter is used for pipeline liquid flow measurement of continuous or intermittent high-precision measurement instrumentation. It has high accuracy, good reliability, light weight, long life, easy installation etc. It is atypical positive displacement flow meter products. Roots Flow meter mainly by the measurement cavity, sealing position of the coupling and counters. The instructions can be cumulative and instantaneous flow of traffic, coupled with letters intelligent control device and flow meter, can realize remote measurement and control. It widely used in petroleum, chemical, electric power, metallurgy, transportation, food processing, medicine, defense, commerce and trade sectors such as oil and petroleum products, chemical solutions and other fluids accurate measurement. ■ 2. 工作原理当被测液体流经计量室时,在流量计的进出口形成压差,腰轮在此压差的推动下旋转。同时通过固定在腰轮轴上的一对驱动齿轮, 使两个腰轮保持连续旋转。随着腰轮的转动,液体经由计量室被不断排出流量计。每对流过的液体量是计量室容积的四倍,通过密封联轴器、减速机构, 将旋转次数减速后传递到计数器, 计数器即指示液体瞬时流量和累积流量。在计数器机构中安装发信器即成了带发信器的腰轮流量计。与显示仪表或微机系统配套, 可实现远传( 定量、累积、瞬时等功能) 自动化测量和控制。使用说明另见显示仪表分类说明书。■ 2. works When the measured liquid flow ing through the measuring chamber when the pressure in the formation of the import and export meter, waist-round under the impetus of pressure in the second rotation. At the same time fixed on the waist by apair of drive axle on the gear, there are two waist-round to maintain acontinuous rotation. With the waist wheel rotation, the liquid is continuously discharged through the metering chamber flow meter. Convection over the liquid for each volume is four times the volume of metering chamber. Through the sealing coupling, deceleration institutions, after slowing down the rotation number passed to the counter, 2 counters that the instantaneous direction of liquid flow