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What are the basic principles and components of an imported orifice plate flow meter?
Published Time:
2020-09-14 23:04
Source:
An orifice flow meter is a highly accurate flow meter used in many fields. When using an orifice flow meter, it's important to understand its basic components and principles. Today, we will introduce the basic principles and components of an orifice flow meter.
1. Components of an orifice flow meter. An orifice flow meter consists of several systems, including a measurement system composed of pressure tap pipes, a standard orifice plate, a differential pressure transmitter, a three-valve assembly, a controller, and additional devices such as a condenser and an isolator. Standard orifice plates can be classified into three types based on pressure tapping methods: radial tapping, flange tapping, and corner tapping. Based on orifice plate type, there are annular orifice plates, restrictive orifice plates, built-in orifice plates, and standard orifice plates. Standard orifice flow meters have a wide range of applications. The differential pressure measured by the pressure tap pipes on the high and low-pressure sides of the orifice plate is converted into a standard electrical signal by the differential pressure transmitter and then transmitted to the control room and central control room.
2. Basic principle of an orifice flow meter. For a medium filling a pipe, it can pass through the throttling orifice plate in the pipe. When passing through, the flow velocity will locally contract at the orifice plate, increasing the flow velocity and reducing the static pressure, resulting in a pressure difference before and after the orifice plate. This can be understood through the structural principle diagram of the orifice flow meter. The larger the flow rate of the medium, the greater the pressure difference before and after the orifice plate. The flow rate is calculated by measuring the pressure difference.
From the above content, we have understood the basic principles and components of an orifice flow meter. It is composed of multiple systems and parts, each playing a crucial role. If you have any further questions, please consult eletta.
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