热式气体质量流量计是利用流体流过外热源加热的管道时产生的温度场变化来测量流体质量流量，或利用加热流体时流体温度上升某一值所需的能量与流体质量之间的关系来测量流体质量流量的一种流量仪表。无须压力、温度补偿，就能方便地检测在管道中流动的天然气、空气、氢气、氧气、氯气、氮气、氩气、氨气、沼气、煤气、烟道气（除乙炔气）等气体的质量流量retz Thermal gas mass flowmeter is a flow instrument that measures fluid mass flow using the temperature field changes generated when a fluid flows through a pipe heated by an external heat source, or uses the relationship between the energy required for the fluid temperature to rise to a certain value when heating the fluid and the fluid mass to measure fluid mass flow. Without pressure and temperature compensation, it is convenient to detect the mass flow of natural gas, air, hydrogen, oxygen, chlorine, nitrogen, argon, ammonia, biogas, coal gas, flue gas (excluding acetylene), and other gases flowing in the pipeline
进口热式气体质量流量计结构特点 Structural features
1.真正的质量流量计，对气体流量测量无需温度和压力补偿，测量方便、准确。可得到气体的质量流量或者标准体积流量 A true mass flowmeter eliminates the need for temperature and pressure compensation for gas flow measurement, making进口热式气体质量流量计2.jpg measurement convenient and accurate. The mass flow rate or standard volume flow rate of the gas can be obtained
2.宽量程比，可测量流速高至100Nm/s低至0.1Nm/s的气体，可以用于气体检漏 Wide range ratio, capable of measuring gases with flow rates as high as 100 Nm/s and as low as 0.1 Nm/s, and can be used for gas leak detection
3.抗震性能好、实用寿命长、传感器无活动部件和压力传感器部件，对测量精度不受震动的影响 Good seismic performance, long practical life, sensor without moving parts and pressure sensor components, and measurement accuracy is not affected by vibration
4.安装维修简单方便，在现场条件允许的情况下，可以实现不停产安装和维护 Installation and maintenance are simple and convenient, and installation and maintenance can be achieved without stopping production if site conditions allow
5.根据现场工艺管道不同，可水平、垂直和不同角度倾斜安装 According to different on-site process pipelines, it can be installed horizontally, vertically, and obliquely at different angles
6.数字化设计，整体数字化电路测量，测量准确、维修方便 Digital design, overall digital circuit measurement, accurate measurement, convenient maintenance
7.采用RS-485通讯，或HART通讯，可以实现工厂自动化、集成化 Using RS-485 communication or HART communication can achieve factory automation and integration
技术参数 Technical parameter
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测量介质 |
各种气体 |
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管径范围 DN10～2000mm |
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流速范围 |
0.1～100 Nm/s |
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准确度 ±1～2.5% |
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工作温度 |
传感器：0～+220℃转换器： -20～+45℃ |
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工作压力 (介质压力≤1.6MPa插入式),法兰式高压4.0MPa以下，特殊压力可定制 |
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供电电源 |
一体机(DC24V或者AC220V≤18W) 分体式(AC220V≤19W) |
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输出信号 4-20mA(光电隔离，最大负载500Ω)、脉冲、RS-485(光电隔离) |
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响应速度 |
1s |
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报警 1-2路继电器常开触点、10A/220V/AC、5A/30V/DC |
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结构形式 |
插入式和法兰式 |
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供货类型 分体结构、 一体化结构 |
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管道材质 |
碳钢、不锈钢等 |
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现场显示 液晶显示 |
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显示内容 |
质量流量、标况体积流量、累积流量、标准时间、累积运行时间，标准流速等 |
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防护等级 IP65 |
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传感器材质 |
不锈钢(316) |
富林克致力于作为流体控制专家，负责中国地区RETZ产品的营销管理和服务，从而创造价值的企业，RETZ以“坚持更好的品质”为根本，以“持续实现具有创造性、高品质产品和服务的企业价值，为当今社会的繁荣作出贡献”为企业理念