Analysis of the Advantages and Disadvantages of Thermal Gas Mass flowmeters: The choice for precise gas measurement

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.

Thermal gas mass flowmeter adopts the principle of thermal diffusion, and thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions.

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 most important thing is that the range ratio of this flowmeter is very wide, which greatly meets the measurement needs of the owner.

The thermal mass flowmeter is an device for measuring gas flow by using the principle of thermal diffusion. The sensor consists of two reference thermal resistors (RTDS). One is the speed sensor RH, and the other is the temperature sensor RMG, which measures the temperature change of the gas. When the two RTDS are placed in the measured gas, one sensor RH is heated and the other sensor RMG is used to sense the measured gas temperature. As the gas flow rate increases, the airflow carries away more heat, and the temperature of the sensor RH drops.

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

Biogas, as a renewable and clean energy source, is widely used in power generation, heating, chemical engineering and other fields. However, biogas has a complex composition (containing CH₄, CO₂, H₂S, water vapor, etc.) and is characterized by corrosiveness, high humidity and large pressure fluctuations, which poses higher requirements for flow measurement. How to choose the right biogas flowmeter? The following five key factors will be analyzed for you!

The origin of the thermal gas mass flowmeter is from the hot wire anemometer. The temperature of the platinum heating wire has a proportional relationship with the change in the flow rate of the fluid: the faster the flow rate, the more heat is taken away.

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 flowmeter can be used to measure any gas that does not contain condensed liquid in various shapes and materials (such as round pipe, square pipe, rectangular pipe, etc., diameter from 8mm-10000mm or larger, all kinds of metal, plastic, cement material), it does not need temperature and pressure compensation, directly measure the mass flow of fluid.

Thermal gas mass flowmeter is based on the principle of thermal diffusion design and production of the product is widely used in steel plants, coking plants, petroleum, chemical, thermal, medical, thermal power plants, environmental protection and other industries.

In the field of industrial gas flow measurement, thermal gas mass flowmeters have become the preferred equipment for scenarios such as natural gas, compressed air, and flue gas monitoring, thanks to their advantages of high precision, low pressure loss, and direct measurement of mass flow. This article will analyze the core value of thermal gas mass flowmeters from three aspects: principle, advantages and typical applications.

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:

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.

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:

Thermal gas mass flowmeter based on the principle of thermal diffusion, using constant temperature difference method designed, is a gas measurement instrument.

Thermal mass flowmeters are known for their ability to provide accurate and reliable measurements of fluid flow rates, regardless of changes in pressure and temperature. This resilience to pressure and temperature variations is due to the operating principle of thermal mass flowmeters and their design features. Here’s why thermal mass flowmeters are not significantly affected by changes in pressure and temperature:

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:

I believe that friends who understand the thermal gas mass flowmeter know that it can measure a lot of gas flow, why this flowmeter can achieve such a wide range of applications?

In fields such as industrial process control, HVAC systems, compressed air monitoring, and environmental emission detection, the precise measurement of air flow is of vital importance. Thermal gas mass flowmeters, with their unique working principle and excellent performance, have become the ideal choice for air flow measurement. The following is an analysis of its five core advantages:

The correct use of gas flowmeters is the key to ensure accurate and reliable measurement results. The following is the correct use of gas flowmeters:

With the development of new energy technology, natural gas is more and more widely used in many new energy industries, and the thermal gas mass flowmeter has become a suitable instrument for measuring high pressure gas measurement. Below we analyze from the perspective of product performance and installation cost, why the thermal gas mass flowmeter can become a suitable low degree meter in high pressure natural gas measurement.

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

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

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.

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.

The thermal gas mass flowmeter uses the principle of thermal diffusion, and its working principle determines the change of the measured medium gas with the temperature and pressure, which affects the data change of the measured results.

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.

In practical applications, thermal mass flowmeters require careful attention to various factors to ensure accurate and reliable measurement of fluid flow rates. Here are some key considerations for the practical application of thermal mass flowmeters:

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:

In the industrial field, companies need to use natural gas, hydrogen and other gas in many process production, sometimes also need oxygen, nitrogen, argon and other made of gas, this part of the gas cost needs to be controlled and monitored, and the selection of monitoring instruments need to consider various issues: