『Electromagnetic flowmeter symbol』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. What are the standard symbols for flow meters in PID diagrams?
In P&ID (Piping and Instrument Diagram), different types of flow meters have their own unique standard symbols, and common ones are as follows:
Sakura liquid, labeled with instrument tag number on the side, measures the flow rate of conductive liquid based on Faraday electromagnetic induction principle
4 Vortex flowmeter: The standard symbol is a circle with a vortex pattern, and the instrument tag number is marked on the side. The flow rate is calculated by detecting the vortex frequency generated by the fluid flowing through the blocking fluid.
2. What are the representation methods of various types of flow meters in PID process diagrams?
The common representation methods of flow meters in P&ID (Process Piping and Instrument Diagram) mainly use exclusive graphic symbols to match the instrument tag area. The specific descriptions of the four types of mainstream flow meters are as follows:
Orifice flowmeter symbol: Represent the orifice plate with a rectangular shape, connect the pipeline lines at both ends of the rectangle, and label the corresponding instrument tag number on the side. Working logic: It belongs to a throttling flowmeter. When the fluid passes through the orifice plate, a pressure difference will be generated. By measuring the pressure difference, the flow rate value can be converted.2. Turbine flowmeter symbol: represented by a circular symbol with blades, with corresponding instrument tag numbers marked on the side. Working logic: The fluid impacts the turbine blades to rotate, and the turbine speed is proportional to the fluid flow rate. Flow data can be obtained by detecting the spee
_600x400.jpg)
4. Vortex flowmeter symbol: represented by a symbol with the vortex Tucson basis, with the corresponding instrument tag number marked on the side. Working logic: When a fluid flows through a vortex generator, periodic vortices are generated, and the vortex frequency is related to the fluid flow rate. By detecting the vortex frequency, the flow rate can be calculated.
3. In the process flow diagram with control points, the symbol representing the electromagnetic flowmeter
In the process flow diagram with control points (P&ID), the standard symbol for the electromagnetic flowmeter consists of "graphic+letter code" and must comply with specifications such as GB/T 2625-2008.
. 1. The graphic symbols that make up an electromagnetic flowmeter usually include three core parts: • Measuring element: The main body is a circular symbol with a horizontal line in the middle, representing the electrode in the principle of electromagnetic induction; • Connection line: Connect the measuring element to the pipeline system through a straight or broken line, indicating its installation position in the process; • Instrument Circle: Some design units may add a circular or square dashed box around the symbol to indicate the instrument number and parameters; • Cumulative function FT: If it also has flow accumulation functio
Hot Blog
Related AD
