天信流量计TBQ说明书
天信培训资料

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TBQC型流量计安装注意事项
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CPU卡罗茨流量计结构
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G型罗茨流量计工作原理
• G型气体罗茨流量计是我公司选用技术水平世界领先的美国德莱赛公司生产的流量检 测部件(罗茨表部件)进行组装、配套而成的高精度、高可靠、宽范围度的气体检测或计 量仪表,广泛应用于工业检测与控制城市燃气检测或计量等领域。能满足用户对高精 度、高可靠的检测或计量要求。它是容积式流量计,由两个8字形转子和一个坚固的流 量检测室组成,当被测气体进入入口端,推动转子旋转,每转动一周就有定体积流量 从出口排出,这就是旋转定排量工作原理。转子转动经磁耦合器传递输出转动频率, 实现流量检测或计量的目的。同时,多种不同的结构形式,可满足不同的用户要求。 该产品广泛应用于天然气、城市煤气等各种燃气的计量,能满足用户对高精度、高可 靠的计量要求。
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• 4.插卡过程流量计显示说明(显示屏如下图)
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①待开户状态:“余量”后跟字符“n”表示。 ②运行状态 :“余量后无“n”字符。 ③充值操作完成后,先在余量上显示购量,同时“已购量”显示,然后显示器余量值 为原余量值与购气量的和。 ④采集卡操作完成后,显示屏先分行显示12位“用户号”,6秒切换显示屏,上行显示 10位“累计购气量”,第二行左显示2位“表工作状态”,第二右显示2位“用气类 型”,第三行左显示“密钥版本号”,第三行右显示“密钥索引号”,第四行显示10 位“累计用气量”。 31 ⑤“开阀”、“关阀”显示表示阀门的开/关状态。
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工作原理图 本产品按美国国家标准ANSI/ASC-B109.3和浙江天信仪表有限公司企业标准Q/ZTX 13制造生产。 配置FCM-I型流量补偿仪的流量计为本安防爆型式,经国家级仪器仪表防爆安全监 督检验站(NEPSI)检定认可,符合国家标准GB3836.1-2000、GB3836.4-2000的有 15 关规定。本安防爆等级为ExiaⅡCT4。
天信流量计通信协议及数据解包方法

1.3
智能气体流量计可选用的通信协议见下表 表1 流量计型号名称 TDS 系列智能旋进流量计 TBQZ 系列智能气体涡轮流量计 G 型气体罗茨流量计 B3 气体罗茨流量计 FCM 型流量补偿仪 LUX 系列旋进漩涡气体流量计 CPU 卡工业流量计 采用的通信协议 天信协议 V1.2 天信协议 V1.3, MODBUS/A1 协议 MODBUS/A2 协议 MODBUS/A3 协议 LUX 通信协议 CPU 卡流量计通信协议 V1.0 MODBUS/A4 协议 备注 通信协议版本可通 过流量计表头进行设置 选择,选择方法见流量计 使用说明书
1.4
流量计通信天信协议 V1.2、天信协议 V1.3 中浮点数据解包方法相同,MODBUS 采用 BCD 码和 IEEE754 浮点数格式。当使用天信协议 V1.2 时,流量计采用历史记录方式为启停方式;其它 采用定时时间间隔记录方式。
二、 天信协议 V1.2
2.1 主机向仪表发送数据定义(数据包 20 字节) : 数据项 起始符 数据类型 数据序号 子机号 数据域 校验和 结束符 字节数量 1 1 1 2 12 2 1 字节顺序 1 2 3 4-5 6-17 18-19 20 数据(十六进制) 7C 见表 1 见表 1 ASCII 码,如子机号 02,发送十六进制的 30、32 未定义,可全为 30 未定义,填入 30、30 7D 表2
2.3 举例:设仪表表头的通信地址(默认子机号)为 02 当前显示为:总量 标况 温度 8700 30.93 20.0 工况 压力 30.97 101.19
上传当前参数主机发送的数据: 7C 0D 31 30 32 30 30 30 30 30 30 30 30 30 30 30 30 30 30 7D 主机接受的数据: 7C 30 32 31 30 35 37 3B 3B 3D 30 30 30 30 30 30 30 3E 34 33 3F 38 30 31 30 35 35 30 30 30 30 30 30 37 36 35 32 3F 38 30 30 35 37 3B 3E 39 38 30 30 30 30 30 7D 其中:7C 30 32 31 30 35 37 3B 3B 3D 30 30 ;起始位 ;仪表子机号 ;数据序列 ;瞬时流量,浮点数为 057BBD00,解包后十进制数为 30.935 浮点数解包方法见下面所述。 30 30 30 30 ;累积总量 BCD 码部分
流量计说明书MTK WSL WPHL WIL

福州真兰水表有限公司 福州真兰水表有限公司安装注意事项1.确定流量计的口径,应先了解管道内流量大小,以经常使用流量接近常用流量为宜,不能单纯以管道直径确定流量计的口径大小。
2.新装管道应清除管道内石子、泥砂等杂物后再安装流量计,以防止流量计损坏或发生故障。
3.流量计一般水平安装在回水管上,也可安装在进水管,但必须注意流量计的使用温度不得大 于最大承受温度;外壳上箭头方向必须与水流方向一致,标度盘不得朝下或倾斜,安装点 应避免曝晒、冰冻、污染和水淹,以便拆装流量计和抄表。
4.流量计安装应有旁路,以保证拆装流量计时不停水,流量计上游和下游要安装阀门,使用 时全部打开。
5.为防止流量计信号输出错误,布置的信号线附近应避免电磁场干扰。
对于大口径水平螺翼 式(WPHL)流量计(见简图2),还必须注意以下几点:1) 流量计上游处请安装与流量计公称口径一致的滤水器,滤网要经常取出清洗,滤水器中 积存的杂质应清除干净,以确保流量计计量准确。
2) 流量计上游和下游要安装必要的直管段或其等效的整流器,上游直管段的长度不少于 10D ,下游不少于5D (D 为流量计公称口径),对于由弯管或离心泵所引起的湍流情况, 必须在直管段前加装整流器。
3) 流量计与上、下游直管段要同轴安装,密封垫不得突入管内,以免引起计量失准。
流量计MTKL DN15-32 WPHL DN40-500 WSL DN50-200 WIL DN50-200MTKL 15-32 WPHL40-500 WSL50-200 WIL50-200福州真兰水表有限公司 福州真兰水表有限公司用 途流量计是热量表或其它流量讯号采集系统的主要单元。
用于计量流经管道的流体的 总体积并发出讯号给后续系统。
既可直接在流量计指示装置上读出所通过的流体体积总量,也可在讯号采集的后续系统上读取。
流量计的选择根据管道公称口径和常用流量的使用情况,并参考技术参数来选择流量计的口径。
天信产品升级介绍

0.5级
±0.5%
1.0级
±1.0%
压力 示值 温度 示值 流量 计算
±0.2%(≥20%P*max) ±0.2%FS(<20%Pmax) ±0.35%(≥1/3P*max) ±0.3%FS(<1/3Pmax)
-15 ℃~+65 ℃(近于额定条件) 25 ℃±5 ℃(参比条件)
±0.5℃ 或 ±0.2%
压力规格:0.2MPa
相对误差 (%)
信仪表集团有限公司
★可靠性和安全性提升
——采用了多种可靠性和安全性设计使安全性能得到提高。
●传感器数字化使抗射频干扰性能提高
可能导致 计量不正 常 大功率射频干扰
影响小
●内嵌脉冲群抑制、防雷等保护电路,所有外输接口均与内部CPU系统实
现全电气隔离设计,抗干扰强,可靠性好。
★准确度提高——由于压力传感器、温度传感器数字化,精度提高,从 而使修正仪准确度提高。
型号 准确度等级 最大允许 误 差 重复性 压力示值 温度示值 流量计算 最大允许 误 差 TBQZ 1.5级 ±1.0% (20%Qmax≤Q≤Qmax) ±2.0% (Qmin≤Q<20%Qmax) TBQZⅡ 1.5级 ±1.0% (20%Qmax≤Q≤Qmax) ±2.0% (Qmin≤Q<20%Qmax)
压力示值
25 ℃±5 ℃(参比条件) ±1.0℃ 或 ±0.4%
温度示值
流量计算
最大 误差
±0.1%
注1: Pmax为压力传感器的上限绝对压力。 注2: 流量计算误差包括流量脉冲计数和计算处理的误差。
三、TBQZ型气体涡轮流量计
★结构改进——便于维护、周检;改变表面处理工艺。 ★不同配置——选择配置FCM(默认)或TFC修正仪,功能多样 化,智能化,传感器数字化,可靠性安全性大幅提升。
流量计说明书

一、概述1、简介冲板式散状固体流量计(以下简称冲板流量计)由测量部分(一次表),显示输出部分(二次表)以及连接壳体组成。
它经常与螺旋给料机、叶轮给料机、斗式提升机、传送带等配合使用。
2、测量原则物料下落到检测板上产生水平分力,此水平分力作用于冲板流量计一次表内部的测力传感器使之产生电信号并传送给二次表,由二次表显示并输出与之对应的瞬时流量。
二、主要配置——冲板流量计一次表(含测量本体,传感器,检测板)一台——冲板流量计连接壳体——冲板流量计显示表一台三、技术规格一次表防尘:自身结构防尘耐电压:端子与箱体之间1分钟1000VAC。
绝缘:500VDC,100M 以上。
涂饰:银色。
材质:一次表主体用铝铸件。
传感器:测力传感器适用温度: -10℃—+50℃安全载荷: 150%接线说明: 红15VDC或12VDC+ 黑—;输出绿0~20mVDC+ 白—(颜色以实际发货说明为准)四、操作(一)、安装使用注意事项1、模拟输入与输出信号对电子噪声敏感,请将这些线远离交流电源,并尽量缩短屏蔽电缆的长度,如现场有干扰,请将屏蔽电缆的屏蔽线良好接地。
2、冲板流量计测量的数据受以下三个因素影响:冲击角、检测板水平安装角度和物料自由下落高度。
所以当技术人员协助安装调试后不要轻易改动以上因素。
(二)校准1、初次使用(1)整流壳体和流路对接之后,将冲板流量计安装在整流壳体的基座上,将密封橡胶的法兰和地脚螺栓紧固,进行简单的水平调节。
(2)打开整流壳体门,先将轴插入轴套内,将轴套内的紧固顶丝紧固。
(3)将冲击板通过瓦座穿在轴上,将冲击板调整到合适的角度后(对地角度:60-90度),将冲击板固定在轴上。
(4)将阻尼油注入阻尼器,使阻尼器中充满油且无气泡。
(5)传感器输出红、黑端电源10-15VDC ;绿、白端输入0~20mVDC 。
(6)接线图: (以实际发货为准)传感器供电传感器输出红黑-白-绿现场变送器(7)标定冲板流量计现场校正主要采用实物校正的形式。
流量计仪表操作说明

目录仪表的键盘和前面板-------------------------------------2 仪表功能----------------------------------------------------4 仪表程序----------------------------------------------------4 仪表键盘和中控方式的转换----------------------------6 仪表的启动和停止----------------------------------------7 仪表重量和容积方式的转换----------------------------8 给定量的输入----------------------------------------------8 显示事件信息----------------------------------------------8 服务数据----------------------------------------------------9 标定功能----------------------------------------------------9 调零-----------------------------------------------------14 计数器1或2的复位-------------------------------------13 安装与调整-------------------------------------------------13 维护与保养-------------------------------------------------14 事件信息----------------------------------------------------16(一)仪表的键盘1各按键的作用如下:启动键和停止键。
流量计说明书.pdf_1718715200.0919275

TABLE OF CONTENTS Introduction (4)Specifications (6)Installation (7)Operational Start-Up (9)Troubleshooting (11)Flow Monitor Information (12)Repair Kit Information (13)Statement of Warranty (15)INTRODUCTIONFluid entering the meter passes through the inlet flow straightener which reduces its turbulent flow pattern and improves the fluid’s velocity profile. Fluid then passes through the turbine blades causing it to rotate at a speed proportional to the fluid velocity. As each blade passes through the magnetic field, created at the base of the pickoff transducer, AC voltage (pulse) is generated in the pick-up coil (see Figure 1). These impulses produce an output frequency proportional to the volumetric flow through the meter. The output frequency is used to represent flow rate and/or totalization of fluid passing through the turbine flow meter.FIGURE 1Schematic illustration of electric signalgenerated by rotor movementTURBINE METERThe FTB-1400 Series Turbine Flow Meter is designed to withstand the rigorous demands of the most remote flow measurement applications. The FTB-1400 Series Flow Meter maintains measurement accuracy and mechanical integrity in the corrosive and abrasive fluids commonly found in oil field waterflood project pipelines, in-situ mining operations, offshore facilities and plant locations. Simple to install and service, it can operate in any orientation (horizontal to vertical) as long as the“flow direction” arrow is aligned in the same direction as the actual line flow. For optimum performance, the flow meter should be installed with a minimum of 10 diameters upstream pipe length and 5 diameters downstream pipe length.FIGURE 2Typical cross-section of FTB-1411 throughFTB-1441 turbine flow meterSPECIFICATIONSMATERIALS of CONSTRUCTION: Body : 316 Stainless SteelRotor : CD4MCU Stainless SteelRotor Support and Bearings : 316 Stainless SteelRotor Shaft : Tungsten CarbideOPERATING LIMITATIONS:Temperature: -150 °F to +350 °F (-101 °C to +177 °C) The metershould not be subjected to temperatures above +350° F(177° C), or below -150° F (-101° C) or the freezingpoint of the metered liquid. High temperatures willdamage the magnetic pick-up, while lower temperatureswill limit the rotation of the rotor.Pressure : Maximum pressure ratings as follows:5,000 psi ─ all NPT meters up to 2"2,000 psi ─ 3" male NPT1,500 psi ─ 4" male NPT1,000 psi ─ 6" male NPT800 psi ─ all grooved end metersNote: Consult factory for pressure ratings for flanged meters. Accuracy:± 1.0% of reading Repeatability: ± 0.1%Calibration: Water (NIST Traceable Calibration) Corrosion: All FTB-1400 series turbine meters are constructed ofstainless steel and tungsten carbide. The operator mustensure that the operating fluid is compatible with thesematerials. Incompatible fluids can cause deterioration ofinternal components and cause a reduction in meteraccuracy.Pulsation andVibration: Severe pulsation and mechanical vibration will affectaccuracy and shorten the life of the meterFiltration: If small particles are present in the fluid, it is recommendedthat a strainer be installed upstream of the meter (see Table 1 WARNING: Pressure in excess of allowable rating may cause the housing to burst and cause serious personal injury.FLOW MONITOR:For a complete flow monitor package, Omega offers the FTB-1400 Series Flow Monitors (see Appendix B on page 12 for flow monitor information). These digital signal processing displays utilize the low-level frequency input from the FTB-1400 Series Turbine Meters to calculate flow rate and total. When ordered with an Omega FTB-1400 Series Turbine Meter, the included factory calibration will provide dependable and accurate flow information.REPAIR KIT:The FTB-1400 Series Turbine Meter Repair Kit is designed for easy field service of a damaged flow meter, rather than replacing the entire flow meter (see Appendix B on page 12 for repair kit information).Repair parts are constructed of stainless steel alloy and tungsten carbide and are factory calibrated to ensure accuracy throughout the entire flow range. Each kit is complete and includes the calibrated K-factor which is used to recalibrate the flow monitor or other electronics to provide accurate output data.INSTALLATION INSTRUCTIONSPrior to installation, the flow meter should be checked internally for foreign material and to ensure the turbine rotor spins freely. Fluid lines should also be checked and cleared of all debris.The flow meter must be installed with the flow arrow, etched on the exterior of the meter body, pointing in the direction of fluid flow. Though the meter is designed to function in any position it is recommended, where possible, to install horizontally with the magnetic pick-up facing upward.The liquid being measured should be free of any large particles that may obstruct rotation of the rotor. If particles are present, a mesh strainer should be installed upstream before operation of the flow meter. (See Table 1 on page 8.)TABLE 1 Strainer Mesh Installation DetailsThe preferred plumbing setup is one containing a by-pass line (Figure 3 on page 10) that allows meter inspection and repair without interrupting flow. If a by-pass line is not utilized, it is important that all control valves be located downstream of the flow meter (Figure 4 on page 10).This is true with any restriction in the flow line that may cause the liquid to flash. If necessary, air eliminators should be installed to ensure that the meter is not incorrectly measuring entrained air or gas.PARTNUMBER STRAINER MESH CLEARANCE FILTER SIZE FTB-1411, FTB-142160 × 60 .0092 260 Micron FTB-1412, FTB-142260 × 60 .0092 260 Micron FTB-1413, FTB-142360 × 60 .0092 260 Micron FTB-142460 × 60 .0092 260 Micron FTB-1425 60 × 60 .0092 260 MicronFTB-1431 20 × 20 .0340 .86mm FTB-1441 20 × 20 .0340 .86mmCAUTION: Damage can be caused by striking an empty meter with a high velocity flow stream.It is recommended that a minimum length, equal to ten (10) pipe diameters of straight pipe, be installed on the upstream side and five (5) diameters on the downstream side of the flow meter. Otherwise, meter accuracy may be affected. Piping should be the same size as the meter bore or threaded port size.Do not locate the flow meter or connection cable close to electric motors, transformers, sparking devices, high voltage lines, or place connecting cable in conduit with wires furnishing power for such devices. These devices can induce false signals in the flow meter coil or cable, causing the meter to read inaccurately.If problems arise with the flow meter and monitor, consult Appendix A (Troubleshooting Guide) on page 11. If further problems arise, consult the factory.If the internal components of the turbine flow meter are damaged beyond repair, turbine meter repair kits are available. Information pertaining to the turbine meter repair kits is referenced in Appendix B on page 12.OPERATIONAL START-UPThe following steps should be followed when installing and starting the meter.WARNING: Make sure that fluid flow has been shut off and pressure in the line released before attempting to install the meter in an existing system.1. After meter installation, close the isolation valves and open theby-pass valve. Flow liquid through the by-pass valve for sufficient time to eliminate any air or gas in the flow line.CAUTION: High velocity air or gas may damage the internal components of the meter.2. Open upstream isolating valve slowly to eliminate hydraulic shockwhile charging the meter with the liquid. Open the valve to full3. Open downstream isolating valve to permit meter to operate.4. Close the by-pass valve to a full closed position.5. Adjust the downstream valve to provide the required flow ratethrough the meter. Note: The downstream valve may be used as a control valve.FIGURE 3Meter installation utilizing a by-pass line(Shown with an FTB-1400 Series Flow Monitor)FIGURE 4Meter installation without utilizing a by-pass lineAPPENDIX ATROUBLESHOOTING GUIDE Trouble Possible Cause RemedyMeter indicates higher than actual flow rate -Cavitation-Debris on rotor support-Build up of foreign materialon meter bore-Gas in liquid-Increase back pressure-Clean meter-Clean meter-Install gas eliminatorahead of meterMeter indicates lower than actual flow rate -Debris on rotor-Worn bearing-Viscosity higher than calibrated-Clean meter and add filter-Clean meter and add filter-Recalibrate monitorErratic system indication, meter alone works well (remote monitor application only) Ground loop in shielding Ground shield one placeonly. Look for internalelectronic instrumentground. Reroute cablesaway from electrical noiseIndicator shows flow when shut off Mechanical vibration causesrotor to oscillate without turningIsolate meterNo flow indication. Full or partial open position Fluid shock, full flow into drymeter or impact caused bearingseparation or broken rotor shaftRebuild meter with repairkit and recalibrate monitor.Move to location wheremeter is full on start-up oradd downstream flowcontrol valveErratic indication at low flow, good indication at high flow Rotor has foreign materialwrapped around itClean meter and add filterNo flow indication Faulty pick-up Replace pick-upSystem works perfect, except indicates lower flow over entire range By-pass flow, leak Repair or replace by-passvalves, or faulty solenoidvalvesMeter indicating highflow, upstream pipingat meter smaller thanmeter boreFluid jet impingement on rotor Change pipingOpposite effects of above Viscosity lower than calibrated Change temperature,change fluid or recalibratemeter11APPENDIX BFTB-1400 SERIES FLOW MONITOR Simplified Version• Displays rate and/or total• Large 8 digit by 3/4” display• Front panel programming• NEMA 4X enclosure• Five selectable units of measure• Programs in seven simple stepsPart Number InformationFTB 1400 X DMounting StyleM = Meter MountR =Remote MountS =Swivel Mount Advanced Version• Displays rate and/or total• Large 8 digit by 3/4” display• Front panel programming• NEMA 4X enclosure• Thirteen selectable units of measure• Selection of time intervals for rate measurement• Ten point linearization• Provides additional programming optionsPart Number InformationFTB 1400 X D AMounting StyleM = Meter MountR =Remote MountS =Swivel Mount1213FTB-1400 REPAIR KITFigure 5Typical turbine meter component directoryFlow Meter SizeRepair Kit FitsMeter Part NumberRepair KitPart Number3/8" FTB-1411,FTB-1421 FTB-1400A-RK 1/2" FTB-1412, FTB-1422 FTB-1400B-RK 3/4" FTB-1413, FTB-1423 FTB-1400C-RK 7/8" FTB-1424 FTB-1400D-RK 1" FTB-1425 FTB-1400E-RK 1-1/2" FTB-1431 FTB-1400F-RK 2" LowFTB-1441 FTB-1400F-RK Standard Magnetic Pick-upAll Meter SizesFTB-1400-MPNOTES 141516。
流量计计量差异说明

流量计计量差异说明
上游涡轮流量计(中实华流量计)
型号:TBQZ—80C
工作/公称压力: 1.0—1.6MPa
流量范围:20—400方
准确度: 1.5级
编号:X6075176
生产厂家:浙江天信仪表
下游涡轮流量计(昌乐金天马燃气公司流量计):
型号:TBQZ—100C
工作/公称压力: 1.0—1.6MPa
流量范围:32—650方
准确度: 1.5级
编号:10105144
生产厂家:浙江天信仪表
供气气过程中上游流量计实际运行压力为:0.27MPa(计量压力为0.37MPa),下游流量计实际运行压力为:0.27MPa(计量压力为:0.37MPa),按照上述压力供气过程中,2块流量计的标况基本相同,上下差距不超过30方,一年多来,公司每天实际供气量2.2万方左右,2块流量计总气量差异不超过100方。
5月31号上游流量计提高了运行压力,供气过程中上游流量计实际运行压力为:0.75MPa(计量压力为0.85MPa),下游流量计实际运行压力为:0.27MPa(计量压力为:0.37MPa),按照上述压力供气过程中,上游流量计比下游流量计每小时多计量400—700方不等(上游流量计标况1700方/小时;下游流量计标况1000方/小时),当日下游流量计供气2.2万方,上游流量计计量气量3.2万方,差距太大,请帮助核实流量计是否运行正常,是否超出流量计的计算量程,量程是如何计算出来的,实际总气量依照哪一块表为准。
管线流程示意图:
调压器阀门流量计
调压器
流量计阀门
进口
出口
米管线
二者标况差距400-700方/小时。