Five core advantages of thermal gas mass flowmeters in measuring air

With the widespread use of thermal gas mass flowmeters, many customers do not know much about this flowmeter, today Aister explains the advantages of thermal gas mass flowmeters:

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:

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.

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 thermal gas mass flowmeter is an instrument that uses the principle of heat conduction to measure flow. The instrument adopts constant temperature difference method for gas mass flow sensor part consists of two reference platinum resistance temperature sensors. Using a bridge loop, one sensor measures the flow temperature and the other maintains a constant temperature difference above the fluid temperature, allowing flow measurement under high temperature and high pressure conditions.

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.

How to improve the accuracy of thermal gas mass flow meter?

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

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:

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.

Thermal gas mass flow meter is used to measure and control the gas mass flow meter, different from other gas flow meters, do not need to carry out pressure and temperature correction, directly measure the gas mass flow.

When applying a thermal mass flowmeter, several key points need to be considered to ensure accurate and reliable measurement. Here are some important factors to pay attention to:

Direct measurement of gas mass, without temperature, pressure compensation of gas flow measurement instrument, it represents the development trend of gas flow measurement. The thermal mass flowmeter sensor part is composed of two reference platinum resistance temperature sensors, using a bridge loop, one sensor measures the fluid temperature, and the other sensor is a heating element, maintaining a constant temperature difference higher than the fluid temperature, that is, when the gas flows through the heating element, the heat is taken away, and the heat is proportional to the flow rate of the gas and the density of the gas. To maintain a fixed temperature difference between the two temperature sensors requires the circuit to provide more power to the heating element, and the amount of output power in the circuit is related to the mass of the fluid, thus measuring the flow rate.

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

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 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. It has the advantages of small size, high digitization, easy installation, accurate measurement and so on. Thermal gas flowmeter technical advantages:

In fields such as industrial production, energy management, and environmental monitoring, the measurement of gas flow directly affects process control, energy consumption optimization, and safe operation. Traditional mechanical flowmeters are often limited by factors such as pressure and temperature changes when measuring gas flow, resulting in insufficient accuracy. The thermal gas mass flowmeter, with its unique working principle and technical advantages, is becoming the new industry standard for gas flow 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 thermal gas flowmeter adopts the principle of thermal diffusion, and the thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions. Typical sensing elements of thermal gas mass flowmeters include two thermal resistors (PT100), one is a speed sensor and one is a temperature sensor that automatically compensates for changes in gas 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:

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.

What are the advantages and precautions of the thermal gas mass flow meter?

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.

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:

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

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.

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.

What are the technical advantages of thermal gas mass flowmeters?

A gas flowmeter is an instrument used to measure the flow of gas. Its working principle is based on fluid dynamics, acoustics or mechanical principles, and it determines the flow rate of gas by detecting its flow characteristics in the pipeline. The flowmeters used for measuring gas can be classified into differential pressure flowmeters, turbine flowmeters, vortex flowmeters and mass flowmeters based on different measurement principles. Today, we mainly discuss the key points of using these commonly used gas flowmeters

Three parts instrumentation, seven parts installation. The correct selection of the installation point and the proper installation of the thermal gas mass flowmeter are both very important steps. If there is a mistake in the installation process, it may not only affect the measurement accuracy but also shorten the service life of the flowmeter or even damage it. 

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