熱式氣體質量流量計是利用流體流過外熱源加熱的管道時產生的溫度場變化來測量流體質量流量，或利用加熱流體時流體溫度上升某一值所需的能量與流體質量之間的關系來測量流體質量流量的一種流量儀表。無須壓力、溫度補償，就能方便地檢測在管道中流動的天然氣、空氣、氫氣、氧氣、氯氣、氮氣、氬氣、氨氣、沼氣、煤氣、煙道氣（除乙炔氣）等氣體的質量流量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
進口熱式氣體質量流量計結構特點 Structural features
1.真正的質量流量計，對氣體流量測量無需溫度和壓力補償，測量方便、準確。可得到氣體的質量流量或者標準體積流量 A true mass flowmeter eliminates the need for temperature and pressure compensation for gas flow measurement, making進口熱式氣體質量流量計2.jpg measurement convenient and accurate. The mass flow rate or standard volume flow rate of the gas can be obtained
2.寬量程比，可測量流速高至100Nm/s低至0.1Nm/s的氣體，可以用于氣體檢漏 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、實用壽命長、傳感器無活動部件和壓力傳感器部件，對測量精度不受震動的影響 Good seismic performance, long practical life, sensor without moving parts and pressure sensor components, and measurement accuracy is not affected by vibration
4.安裝維修簡單方便，在現場條件允許的情況下，可以實現不停產安裝和維護 Installation and maintenance are simple and convenient, and installation and maintenance can be achieved without stopping production if site conditions allow
5.根據現場工藝管道不同，可水平、垂直和不同角度傾斜安裝 According to different on-site process pipelines, it can be installed horizontally, vertically, and obliquely at different angles
6.數字化設計，整體數字化電路測量，測量準確、維修方便 Digital design, overall digital circuit measurement, accurate measurement, convenient maintenance
7.采用RS-485通訊，或HART通訊，可以實現工廠自動化、集成化 Using RS-485 communication or HART communication can achieve factory automation and integration
技術參數 Technical parameter
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測量介質 |
各種氣體 |
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管徑范圍 DN10～2000mm |
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流速范圍 |
0.1～100 Nm/s |
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準確度 ±1～2.5% |
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工作溫度 |
傳感器：0～+220℃轉換器： -20～+45℃ |
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工作壓力 (介質壓力≤1.6MPa插入式),法蘭式高壓4.0MPa以下，特殊壓力可定制 |
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供電電源 |
一體機(DC24V或者AC220V≤18W) 分體式(AC220V≤19W) |
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輸出信號 4-20mA(光電隔離，最大負載500Ω)、脈沖、RS-485(光電隔離) |
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響應速度 |
1s |
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報警 1-2路繼電器常開觸點、10A/220V/AC、5A/30V/DC |
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結構形式 |
插入式和法蘭式 |
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供貨類型 分體結構、 一體化結構 |
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管道材質 |
碳鋼、不銹鋼等 |
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現場顯示 液晶顯示 |
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顯示內容 |
質量流量、標況體積流量、累積流量、標準時間、累積運行時間，標準流速等 |
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防護等級 IP65 |
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傳感器材質 |
不銹鋼(316) |
富林克致力于作為流體控制專家，負責中國地區RETZ產品的營銷管理和服務，從而創造價值的企業，RETZ以“堅持更好的品質”為根本，以“持續實現具有創造性、高品質產品和服務的企業價值，為當今社會的繁榮作出貢獻”為企業理念