Flow measurement is an essential part of any industrial or fluid power system. To measure flow, you need a device known as flow meters that can accurately calculate the amount of liquid or gas passing through it in a given time.
There are many different types of flow meters available on the market today. For example, they may range from mechanical to electronic. However, high-pressure electronic meters have gained popularity among engineers and technicians for their accuracy and versatility.
This article will know what high-pressure electronics flow meters are, their features, and how they work in various applications.
What Is a High-Pressure Electronic Flow Meter?
A high-pressure electronic flow meter is a type of electronic flow meter that is specifically designed to measure the flow rate of liquids or gasses at pressures above 100 psi (689 kPa). It uses an electronic sensor to detect and measure fluid velocity as it passes through the meter.
The digital output from the sensor is then processed by an electronic module which allows the flow rate to be measured and displayed.
The meter calculates the amount of fluid passing through it using an impeller attached to a shaft, also known as a rotor. The impeller is located inside a casing with two openings: one where the liquid flows in and another for outflow.
Features of High-Pressure Electronic Flow Meters
Some of the key features of high-pressure electronic flow meters include:
- High accuracy and repeatability
- Non-invasive measurement
- No moving parts that can wear out over time
- It can be in both liquid and gas applications
The Working Principle of High-Pressure Electronic Flow Meters
High-pressure electronic flow meters work by sending a small, precisely calibrated volume of liquid through the meter and measuring how much time it takes to pass. Then they use this data to calculate the amount of fluid that has passed through in one second or minute.
The impeller inside these meters rotates as the fluid passes over the vanes on the impeller. This causes the meter to turn, and a Hall-effect sensor mounted on the meter shaft detects the rate of rotation.
This data is then processed by an electronic module that calculates and displays the flow rate in either gallon per minute (GPM) or liters per minute (lpm).
Applications for High-Pressure Electronic Flow Meters
High-pressure electronic flow meters can be used in a wide range of applications, including:
- Petrochemical plants
- Gas turbine inlet measurement
- Process and plant monitoring
- Aircraft refueling
The benefits of using high-pressure electronic flow meters include:
i) High accuracy and repeatability
ii) Long service life because of no moving parts or wear on the meter face. This also makes them non-invasive, reducing the risk to the system being measured.
iii) The ability to measure liquids in gas lines and gasses in liquid lines. High-pressure electronic devices are not in limits to just one type of fluid.
iv) Use in hostile or hazardous environments where other types of meters may not work
Disadvantages of High-Pressure Electronic Flow Meters
Although high-pressure electronic devices have many advantages, they also have a few disadvantages:
i) The initial cost of the meter may be more than other types of flow meters.
ii) The electronic module can be damaged if the meter is not properly handled or stored. This could require the replacement of the entire meter.
High-pressure electronic flow meters are a reliable and accurate way to measure the flow rate of liquids and gasses at pressures above 100 psi. They have many features that make them ideal for use in a wide range of applications.