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[ Focus on Chemical Machinery Equipment Network ] In the 20th century, the rapid growth of the demand for flow measurement in the process industry, energy measurement, and urban public utilities promoted the rapid development of meters.
The rapid development of microelectronics and computer technology* promoted the replacement of meters.
New types of flow meters have sprung up.
The hot spot of Chemical Machinery Equipment Network pays attention to the flowmeter of chemical machinery equipmentThe rapid development of microelectronics and computer technology* promoted the replacement of meters.
New types of flow meters have sprung up.
*, Flow measurement is the scientific basis for the study of material changes, and the law of mass mutual change is the basic law of the development of the connection of things.
With the development of flowmeters today, the measurement objects are no longer limited to pipe liquids in the traditional sense, and flow measurement can be used wherever there is a need to master the quantity change.
With the development of flowmeters today, the measurement objects are no longer limited to pipe liquids in the traditional sense, and flow measurement can be used wherever there is a need to master the quantity change.
my country currently has three detection parameters: flow, pressure, and temperature.
For most fluids, the energy can be calculated by knowing these three parameters.
In other words, these three parameters must be detected in the measurement of energy conversion.
Energy conversion is the basis of all production processes and scientific experiments.
Therefore, flow meters, like pressure and temperature meters , are widely used in human activities.
ThermometersFor most fluids, the energy can be calculated by knowing these three parameters.
In other words, these three parameters must be detected in the measurement of energy conversion.
Energy conversion is the basis of all production processes and scientific experiments.
Therefore, flow meters, like pressure and temperature meters , are widely used in human activities.
Thermal gas mass flow meter is an instrument that uses the principle of thermal diffusion to measure gas flow.
The sensor is composed of two reference thermal resistance (RTD).
One is the speed sensor RH, and the other is the RMG that measures changes in gas temperature.
When the two RTDs are placed in the measured gas, the sensor RH is heated, and the other sensor RMG is used to sense the temperature of the measured gas.
As the gas flow rate increases, the gas flow takes away more heat, and the temperature of the sensor RH decreases.
The sensor is composed of two reference thermal resistance (RTD).
One is the speed sensor RH, and the other is the RMG that measures changes in gas temperature.
When the two RTDs are placed in the measured gas, the sensor RH is heated, and the other sensor RMG is used to sense the temperature of the measured gas.
As the gas flow rate increases, the gas flow takes away more heat, and the temperature of the sensor RH decreases.
According to Jin's thermal effect, heating power P, temperature difference △T (TRH-TRMG) and mass flow Q have a definite mathematical relationship.
P/△T=K1+K2 f(Q)K3 K1, K2, and K3 are constants related to the physical properties of the gas.
P/△T=K1+K2 f(Q)K3 K1, K2, and K3 are constants related to the physical properties of the gas.
The unique temperature difference measurement method of the thermal gas mass flowmeter overcomes the large zero drift caused by the water, oil and impurities in the gas when the thermal gas mass flowmeter adopts the principle of constant temperature difference to measure the gas flow.
Disadvantages.
Disadvantages.
It can also be used to measure the mass flow of wet gas, such as the real-time detection of the air volume (speed) in the mine gas drainage, air supply, and exhaust system.
Thermal gas mass flowmeter is easy to install, easy to maintain, two-way detection, anti-vibration; up to 8 points of flow measurement; output correction multi-point nonlinear curve correction
The thermal gas mass flowmeter has a wide range ratio of 100:1; the flow and temperature are detected at the same time, and the display is switched; the large diameter and small flow measurement can be used for leakage detection;
Thermal gas mass flow meter adopts proprietary technology "double balance structure" sensor; proprietary high humidity, high temperature, medium temperature up to 500 ℃; direct mass flow detection without temperature and pressure compensation.
Flow meters have a wide range of applications.
Do you know the characteristics of thermal mass flow meters?
Flow meters have a wide range of applications.
Do you know the characteristics of thermal mass flow meters?
Original title: Do you know the characteristics of a wide thermal mass flow meter in the field of flow meter application?
