What are the characteristics of the thermal gas flow meter?

Thermal gas mass flowmeter has certain operating procedures and precautions in use, and must pay attention to these points when in use:

Although the thermal gas mass flowmeter has many advantages in this respect, it can not be used for large pipe runoff measurement, pressure loss is relatively large, and the price is more expensive, which limits its measurement application in natural gas long distance pipeline.

Thermal gas mass flowmeter has a wide range of applications in many fields, its high precision, rapid response and stability characteristics make it in a variety of gas flow measurement occasions can play an excellent performance, for the development of various industries to provide more reliable technical support.

Common faults encountered with thermal mass flowmeters can disrupt their accurate measurement capabilities. Here are some typical issues along with potential solutions:

Thermal gas mass flowmeter is the use of fluid flowing through the pipe heated by an external heat source when the temperature field changes, is a high-sensitivity, high-precision gas measurement instrument, in the gas flow measurement conditions, good stability, used for gas process control and gas flow measurement one of the most used instruments.

One of the key advantages of thermal mass flow meters is their quick response time, enabling real-time monitoring and control of gas flow in dynamic processes. Moreover, these meters are known for their low pressure drop, minimizing energy consumption and preserving the efficiency of the overall system. With no moving parts, thermal mass flow meters also offer low maintenance requirements, reducing downtime and operational costs for industries relying on precise gas flow measurements.

Response speed: 1s
Output signal: 4-20mA (Photoelectric isolation, large load 500Ω)、
pulse、RS-485 (photoelectric isolation)、HART agreement
Alarm: 1-2 relay normally open contact、10A/220V/AC、*/30V/DC
Type of supply: Separate structure, integrated structure
Pipe material: Carbon steel, stainless steel, plastic, etc
Field display: Four lines of Chinese liquid crystal display
Display content: Mass flow, standard volume flow, cumulative flow, standard time, cumulative running time, standard flow rate, etc
Protection grade: IP65
Sensor material: Stainless steel Stainless steel, carbon steel

The thermal gas flowmeter has many remarkable characteristics, which make it widely used in the field of gas flow measurement. The following are the main features of thermal gas flowmeters:

The thermal mass flowmeter is a flow meter based on the principle of thermal diffusion. The device uses the constant temperature difference method to measure the gas accurately. It has the advantages of small size, high digitization, easy installation, accurate measurement and so on.

Measuring medium: Various gases (except acetylene gas)
Pipe diameter range: DN10-2000mm
Accuracy Degree: ±1～2.5%
Pipe material: Carbon steel, stainless steel, plastic, etc

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure fluid flow. The instrument uses the constant temperature difference method to measure the gas flow accurately. It has the advantages of small size, high digitization, easy installation and accurate measurement.

At present, oxygen generator in the production process will be affected by external influences, more and more enterprises for fine management, energy consumption, cost accounting and other requirements for the loss of this part of the oxygen measurement.

The thermal gas mass flowmeter is an instrument for measuring fluid flow by using the principle of heat conduction. The instrument uses constant temperature difference method to accurately measure the gas mass flow.

The thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure fluid flow. The instrument uses the constant temperature difference method to measure the gas flow accurately. It has the advantages of small size, high digitization, easy installation and accurate measurement. Today we are mainly to talk about the thermal gas mass flowmeter in the installation process need to pay attention to what are?

The medium of one of the two tubes of the thermal gas mass flowmeter does not flow, and the medium of the other tube flows. By comparing the Coriolis force of two pipes to obtain the flow rate, it is convenient to eliminate the natural vibration of the pipeline, the vibration of the fluid itself and other factors that affect or interfere with the measurement.

The data show that in the flow measurement failure probability, the improper selection of flowmeter accounts for about 70%, and the quality of flowmeter products or other reasons account for 30%, which shows how important the selection of flow measurement is.

Installing and debugging a thermal mass flowmeter correctly in the early stages is crucial to ensure accurate and reliable measurements. Here are some precautions to take during installation and debugging:

Due to the continuous development of thermal gas mass flow meter is based on the principle of thermal diffusion, that is, the use of fluid flow through the heated object, the heated object of the heat dissipation of how much with the fluid flow rate into a certain proportional relationship. Specifically, the flow meter’s sensor has two standard and the RTD, has been used as a heat source, has been used to measure the fluid temperature, the fluid flows through, the heat loss of the heat source and the size of the flow into a non-linear relationship, the thermal gas mass flowmeter can be converted into a measurement of this relationship to measure the flow rate of the signal of the linear output.

The reason why the thermal gas mass flowmeter is so popular is mainly due to its many advantages and wide application scenarios. Here’s a breakdown of why it’s popular:

Choosing the correct installation direction for a thermal gas mass flowmeter is essential for optimal performance and accurate measurement. The installation direction should be determined based on factors such as the flow profile, flow conditions, and manufacturer recommendations. Here are some guidelines to help you choose the appropriate installation direction for a thermal gas mass flowmeter:

When selecting a thermal mass flowmeter, several important factors should be taken into consideration to ensure it meets the requirements of the application and provides accurate and reliable measurements. Here are key points to pay attention to:

Thermal gas mass flowmeter as a gas flowmeter, the application is very wide, today we specifically understand the use of thermal gas mass flowmeter:

Thermal Gas Mass Flow Meter is also divided into flange link Thermal Gas Mass Flow Meter and plug-in link Thermal Gas Mass Flow Meter, The following describes the application scope of the Thermal Gas Mass Flow Meter.

The application of thermal gas mass flow meter in various industries

Thermal mass flowmeters offer several advantages and disadvantages, which are important to consider when selecting a flow measurement solution. Here are some of the key advantages and disadvantages:

1. Principle of thermal gas mass flowmeter

Thermal gas mass flowmeter The thermal distributed flowmeter uses the flow fluid to transfer heat to change the heat conduction distribution effect of measuring the temperature distribution of the tube wall. 2) King’s Law using the heat dissipation (cooling) effect. And because the structure of the detection element extends into the measuring tube, also known as immersion or intrusion type. Some instruments that are inserted from outside the tube into the process tube when in use are called plug-in.

The thermal gas mass flowmeter is an instrument for measuring fluid flow by using the principle of heat conduction. The instrument uses constant temperature difference method to accurately measure the gas mass flow.

Thermal gas mass flowmeters are a type of mass flowmeter specifically designed for measuring the flow rate of gases, while mass flowmeters, in a broader sense, can measure the flow rate of both gases and liquids. Here are some key differences between thermal gas mass flowmeters and other types of mass flowmeters:

Thermal gas mass flowmeter is the use of fluid flowing through the pipe heated by an external heat source when the temperature field changes, is a high-sensitivity, high-precision gas measurement instrument, in the gas flow measurement conditions, good stability, used for gas process control and gas flow measurement one of the most used instruments.

Check Power Supply: Ensure that the flowmeter is receiving power from the power supply source. Verify that the power supply is operational, and check the connections between the flowmeter and the power source. If necessary, measure the voltage at the flowmeter terminals to confirm proper power supply.

At the heart of a thermal mass flow meter is a sensor that heats up a portion of the gas stream while monitoring the temperature difference between the heated and unheated sections. As the gas flows over the heated sensor, it carries away heat, and the temperature difference provides a direct measurement of the mass flow rate. The beauty of this method lies in its ability to provide accurate readings across a wide range of flow rates, from low to high velocities, ensuring versatility and reliability in various industrial settings.

Structural form: plug-in pipelined
Measuring medium: All gases (except acetylene)
Pipe diameter range: Caliber DN32 or higher DN10～DN2000mm
Velocity range: 0.1～120Nm/s
Precision: ±1～2.5%
Operating temperature: Sensor：-40℃～+220℃
convertor：-20℃～+45℃
Working pressure: Medium pressure≤2.5Mpa
Medium pressure≤4.0Mpa
Power supply: DC24V or AC220V≤18W

The thermal gas mass flowmeter is designed based on the principle of thermal diffusion. The meter uses constant temperature difference method to measure the gas accurately. The thermal gas mass flowmeter has the advantages of small volume, high digitization, easy installation and accurate measurement.