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.summarizeLumbar wheel flow meter is used for pipeline liquid flow measurement of continuo
2、us or intermittent high-precision measurement instrumentation. It has high accuracy, good reliability, light weight, long life, easy installation etc. It is a typical positive displacement flow meter products.Roots Flow meter mainly by the measurement cavity, sealing the composition of the coupling
3、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
4、, 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
5、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. worksWhen the measured liquid flowing 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
6、fixed on the waist by a pair of drive axle on the gear, there are two waist-round to maintain a continuous 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 me
7、tering chamber. Through the sealing *coupling, deceleration institutions, after slowing down the rotation number passed to the counter, counters that the instantaneous direction of liquid flow and cumulative flow.Counting bodies in the installation of devices that have become with a letter writing d
8、evice Roots Flow meter. And display instruments or computer systems accessories, and can be realized Remote (quantitative, cumulative, instantaneous and other functions) automatic measurement and control. See instructions display instrument classification manual. 3.主要零件材料组合AL EL LL材料零件 铸铁 铸铝 不锈钢 铸钢
9、铸铝 不锈钢 铸铁 铸铁 铸铝 不锈钢壳体 转子 盖板 转子轴 轴承 3. Main parts and materials combinationsAL EL LLMaterialsParts Iron Aluminum Stainless Cast Aluminum Stainless Iron Iron Aluminum Stainlessshell rotor cover Rotor shaftBearing 4.性能和压力损失曲线* 4. Performance and pressure drop curves 5.技术参数 公称压力（MPa）:0.6、1.0、1.6、2.5、4.0
10、 工作温度：（）：-1060 精度等级：0.5、0.2 流量范围：（m 3/h）公称通径 液体粘度3.0150mpa.s液体粘度3.0150mpa.s液体粘度3.0150mpa.s液体粘度3.0150mpa.s15 0.252.5 0.52.5 0.52.5 0.832.520 0.252.5 2.5 0.52.5 0.832.525 0.66 1.26 1.26 2640 1.616 3.216 3.216 5.31650 2.525 525 525 8.32580 660 1260 1260 206080 12100 22100 20100 33.3100100 10100 20100 2
11、0100 33.3100150 40200 40200 100200 66.7200精度等级 0.5 0.2 5. SpecificationsWorking pressure（MPa）：0.6，1.0，1.6，2.5，4.0Temperature（）：-1060*Accuracy grade：0.5，0.2Flow Range（m 3/h）Diameter(mm) Liquid viscosity 3.0150mpa.s Liquid viscosity3.0150mpa.sLiquid viscosity3.0150mpa.sLiquid viscosity3.0150mpa.s15 0.
12、252.5 0.52.5 0.52.5 0.832.520 0.252.5 2.5 0.52.5 0.832.525 0.66 1.26 1.26 2640 1.616 3.216 3.216 5.31650 2.525 525 525 8.32580 660 1260 1260 206080 12100 22100 20100 33.3100100 10100 20100 20100 33.3100150 40200 40200 100200 66.7200Accuracy grade0.5 0.2 6. 外形及安装尺寸 6. Overall and installation dimensi
13、ons（1）铸铁型腰轮流量计外形尺寸(1) Iron-based Roots Flow meter DimensionsModel 型号 L H I B D D1 n-dLL-AL15.06 160 238 52 100*100 G11/4LL-AL20.06 160 238 52 100*100 90 65LL-AL25.06 180 260 68 120*120 G1/LL-AL40.1 240 290 88 170 150 110 4-17.5LL-AL50.1 265 305 97 190 165 125 4-C17.5LL-AL80.1 265 340 122 246 200 160
14、 8-17.5LL-AL80.1 265 470 164 246 200 160 8-18LL-AL100.1 515 425 164 305 220 180 8-18LL-AL150.1 560 550 225 455 285 240 8-22（2）铸钢型腰轮流量计外形尺寸(2) Cast steel wheel flow meter lumbar DimensionModel 型号 L H I B D D1 n-dLL-EL25.3 180 260 68 120*120 G11/4LL-AL40.4 300 290 88 170 150 110 4-18LL-AL50.4 360 315
15、103 276 165 125 4-18LL-AL80.4 360 348 128 254 200 160 4-18LL-AL100.3 540 435 174 330 235 190 4-22*LL-AL150.3 560 552 227 455 300 250 4-26（3）铸铝型腰轮流量计外形尺寸与铸铁型腰轮流量计外形尺寸相同(3) Cast aluminum wheel flow meter lumbar dimension just as (1) 7.腰轮流量计的安装使用 7. Lumbar wheel flow meter installation（1） 流量计前应安装过滤器，两者
16、表体上箭头指向与流动方向一致(1).Flow meter should be installed before the filter, the two arrows pointing in the body on the line with the flow direction（2）当被测液体含有气体时，流量计前应安装气体分离器(2) Recently tested liquid containing gas, flow meter should be installed before the gas separator（3）不论管路是垂直还是水平安装，但流量计的腰轮轴安装成水平位置（即表度盘
17、应与地面垂直） 。(3)Regardless of pipe is installed vertically or horizontally, but the flow meter installed in the waist into a horizontal position axle ( dial the table should be perpendicular to the ground)（4）流量计在正确安装情况下，如果不易看清读数，可把计数器旋转 180 度或 90 度均可。(4) Flow meter installed in the right circumstances,
18、if difficult to see clearly, can be rotated 180 degrees to the counter, or 90 degrees（5）节流阀应安装在流量计进口处，开闭阀装在出口处，使用开闭阀时要缓慢启动，不要突然开阀。(5) Throttle valve should be installed in the meter entrance, opening and closing valve installed in the exit of the use of open-close valve slowly to start, do not sudde
19、nly open valve(6) 严禁使用扫线蒸汽通过流量计Prohibited the use of scan-line steam through the flowmeter（7）在连续使用部门，流量计需加旁通管道In the continuous use sector, need to add bypass pipe flow meter（8）流量计安装前，管道需冲洗，冲洗时采用直管段（替代流量计位置）防止焊渣、杂物等进入流量计Pre-installation flow meter, piping required to wash, rinse used straight pipe s
20、ection (alternative flow meter position) to prevent the welding slag and debris from entering flow meter（9）严禁用水校验铸铁、铸钢材质组成的流量计Check water is strictly prohibited cast iron, cast steel material composition of flow meter （10 ）流量计在使用时流量大小不得超过技术要求。流量计正常工作在最大流量 7080%为优。*When using the flow meter size shou
21、ld not exceed the technical requirements. Flow meter to work at maximum flow rate 70 80% is good 。（11 ）被测液体如果具有化学腐蚀性，需选用不锈钢材质的流量计，如果腐蚀性强，需选用 0Crl8Ni12MO2Ti 材质的流量计。（12 ）流量计的安装方法如右图所示。Flow meter installation method as shown on the right. 8 误差计算及调整Error calculation and adjustment（1） 流量计的基本误差，由各检定流量点的各次
22、测得值分别按下式计算：（容积法）Flow meters basic error, by the test flow point of the various measured values determined by the formulaE=（ Vm-V）/V*100%E-流量计误差（一般指累积误差）取两位有限数字E-meter error (generally refers to the cumulative error) to take a limited number of twoVm-流量计测得值（即显示值）Vm-meter measured value (that is, with
23、 values displayed)V 一经修正后，流量标准装置测得值（实际值）V 1, as amended, the flow standard device measured value (actual value)由基本误差计算公式知，当Vm V 时，流量计基本误差为“+ ”值，表示流量计走快了。Vm V 时，流量计基本误差为“-”值，表示流量计走慢了Knowing from the basic formula for calculating the error, when the Vm V, the flowmeter basic error “+“ value, indicatin
24、g flowmeter gone too fast. Vm 9V 12V Power Supply VL 20V 24V power supply 2. Permissible error Analog: 0.5% FS *Pulse volume: 1 pulse 3. Ambient temperature -25 +50 4. Analog load resistance (client) “400 European 12V Power Supply “800 European 24V power supply 4. Power Supply DC12V +10% 60mA DC24V
25、10% 60mA 5. Explosion Explosion: d BT4 Intrinsically safe: to be certified参数表LL 型腰轮 脉冲当量DN25 0.004425DN40 0.05DN50 0.05DN80 0.25DN80 0.5DN100 0.5DN150 0.5表 1 标准型调节齿轮表 常见故障原因、排除方法故障现象Failure原因 措施 备注*腰轮不转1. 管道中有杂物2. 被测液体含杂物多3. 过滤器损坏，杂物进入表内，腰轮卡死拆洗仪表与管道，修理过滤器，修复腰轮表面轴向密封联轴器漏油密封填料磨损或缺乏密封油拧紧压盖或更换填料、加密封油指针转
26、动不稳或时停时走 指针、螺钉、腰轮等有松动或动件转动不灵活更换轴承、修理变齿处的计量箱壁和齿轮，使转动灵活，保证所需间隙修理后要重新校验误差过大，但最小最大误差之差不超过 1%使用期间超过或检修后间隙等发生变化 重新校验调整对于 0.2 级流量计最大最小误差之差不超过0.17%1）发信块位置不当 重新调整位置左右、 前后移动发信器无信号2）极性接反 重新更改“+”接红线、 “-”接黑线密封部位有渗漏现象 O 型密封圈老化失效更换 O 型密封圈加涂密封脂 Common cause of the malfunction, remove methodFailure Reason Measures N
27、otesRoots can not divert1. There is debris in the pipeline 2. The tested liquid containing more than debris 3.Filter damaged, debris into the table, waist wheel stuck Not turnTake apart and wash instrumentation and piping, repair filters, repair of lumbar wheel surface Not turn*Axial seal leakage co
28、uplingFiller wear and tear or lack of seal oilCover or replace the fill screw pressed, plus seal oilPointer rotation unstable or stop-and-goPointer, screws, waist wheels, moving parts are loose or not flexible rotationReplacement of bearings, repair of varying tooth Department metering box wall and
29、the gears, enabling rotation and flexible to ensure that the required clearanceAfter repair to re-verifyThe error is too large, but the difference between the minimum maximum error of less than 1%After the period of greater than or repair using the changes in clearanceRe-calibration adjustmentFor th
30、e 0.2 meter maximum difference between the minimum error does not exceed 0.17%1) the poor location writing blockTo re-adjust the position so, before and after the moveNo signal of Letter device2) reverse polarityTo re-change the “+“ then the red line “-“ then the black lineThere is leakage sealing p
31、artsAging O-ring failureReplace the O-ring seal grease plus Tu其他1 本仪表出厂前有油检验，请勿用水校，具体按企业标准 Q/JDI.021-2001腰轮流*量计检定规范实施。2 过滤器是单独产品，价另计（本厂可以配套）Other An instrument there is oil in the factory test, do not water the school, specifically according to enterprise standard Q/JDI.021-2001 “Roots Flow meter Calibration Standards“ to implement. Two filters is a separate product, price of the other terms (factory could be supporting
