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The thermal gas mass flow meter is designed based on the principle of thermal diffusion, which uses the constant temperature difference method to accurately measure the gas. The utility model has the advantages of small volume, high digitization degree, convenient installation and accurate measurement.
Ø The real mass flow meter does not require temperature and pressure compensation for gas flow measurement, and the measurement is convenient and accurate. A mass flow rate of the gas or a standard volume flow can be obtained.
Ø Wide range ratio, can measure gas flow rate up to 120Nm / s down to 0.1Nm / s, can be used for gas leak detection.
Ø The seismic performance is good and the service life is long. The sensor has no moving parts and pressure sensing parts and is immune to the influence of vibration on the measurement accuracy.
Ø Easy to install and maintain. Non-stop production installation and maintenance can be achieved where field conditions permit. (requires special customization)
Ø Digital design. The overall digital circuit measurement, accurate measurement and convenient maintenance.
Ø RS-485 communication enables factory automation and integration.
Ø Oxygen, nitrogen, hydrogen, chlorine and multi-component gas measurements.
Ø blast furnace gas, coke oven gas measurement.
Ø Gas flow measurement of natural gas, liquefied gas, flare gas, etc.
Ø Primary and secondary air flow measurements of blast furnaces in the power plant.
Ø Flow measurement of downhole ventilation or exhaust system in Yanzhou Mine.
Performance | Technical Parameters | |
Structure type | Plug-in | Pipeline |
Measuring medium | Common steady-state gases (unstable media such as acetylene and boron trichloride are not measurable) | |
Pipe diameter range | DN65～4000mm | DN15～2000mm |
Flow rate range | 0.1～120Nm/s | |
Accuracy | ±1～2.5% | |
Operating temperature | sensor：-40～+330℃ converter：-20～+45℃ | |
Working pressure | Medium pressure≤4.0MPa(≥4.0MPa Agreement supply) | Medium pressure≤1.6MPa(≥4.0MPa Agreement supply) |
Power supply | (DC 24V )>=12W | |
Responding speed | 1s | |
Output signal | 4-20mA(1500V Optical isolation，Maximum load500ohm）、RS-485(1500V Optical isolation） | |
Call the police | 1-2 normally open contacts | |
Type of supply | Integrated structure | |
Pipe material | Carbon steel, stainless steel, plastic, etc. | |
Live display | Four-line LCD display | |
Display content | Mass flow rate, standard volume flow rate, cumulative flow rate, standard flow rate, etc. | |
Protection level | IP65、IP67、IP68 | |
Sensor material | stainless steel | Stainless steel, carbon steel |
The thermal gas mass flow meter is designed based on the principle of thermal diffusion, which uses the constant temperature difference method to accurately measure the gas. The utility model has the advantages of small volume, high digitization degree, convenient installation and accurate measurement.
Ø The real mass flow meter does not require temperature and pressure compensation for gas flow measurement, and the measurement is convenient and accurate. A mass flow rate of the gas or a standard volume flow can be obtained.
Ø Wide range ratio, can measure gas flow rate up to 120Nm / s down to 0.1Nm / s, can be used for gas leak detection.
Ø The seismic performance is good and the service life is long. The sensor has no moving parts and pressure sensing parts and is immune to the influence of vibration on the measurement accuracy.
Ø Easy to install and maintain. Non-stop production installation and maintenance can be achieved where field conditions permit. (requires special customization)
Ø Digital design. The overall digital circuit measurement, accurate measurement and convenient maintenance.
Ø RS-485 communication enables factory automation and integration.
Ø Oxygen, nitrogen, hydrogen, chlorine and multi-component gas measurements.
Ø blast furnace gas, coke oven gas measurement.
Ø Gas flow measurement of natural gas, liquefied gas, flare gas, etc.
Ø Primary and secondary air flow measurements of blast furnaces in the power plant.
Ø Flow measurement of downhole ventilation or exhaust system in Yanzhou Mine.
Performance | Technical Parameters | |
Structure type | Plug-in | Pipeline |
Measuring medium | Common steady-state gases (unstable media such as acetylene and boron trichloride are not measurable) | |
Pipe diameter range | DN65～4000mm | DN15～2000mm |
Flow rate range | 0.1～120Nm/s | |
Accuracy | ±1～2.5% | |
Operating temperature | sensor：-40～+330℃ converter：-20～+45℃ | |
Working pressure | Medium pressure≤4.0MPa(≥4.0MPa Agreement supply) | Medium pressure≤1.6MPa(≥4.0MPa Agreement supply) |
Power supply | (DC 24V )>=12W | |
Responding speed | 1s | |
Output signal | 4-20mA(1500V Optical isolation，Maximum load500ohm）、RS-485(1500V Optical isolation） | |
Call the police | 1-2 normally open contacts | |
Type of supply | Integrated structure | |
Pipe material | Carbon steel, stainless steel, plastic, etc. | |
Live display | Four-line LCD display | |
Display content | Mass flow rate, standard volume flow rate, cumulative flow rate, standard flow rate, etc. | |
Protection level | IP65、IP67、IP68 | |
Sensor material | stainless steel | Stainless steel, carbon steel |
