دانلود رایگان کتاب نقشه خوانی P&ID

Block Flow Diagram BFD

Process and Instrument Symbols

Process Flow Diagram PFD

Process and Instrument Diagram P&ID

Valves

Valves

Ball Valve  شیر توپی

Butterfly Valve  شیر پروانه اي

Globe Valve  شیر ساچمه اي

Gate Valve  شیر دروازه اي

Needle valve  شیر سوزنی

Plug Valve  شیر مجرابند یا سماوري

Diaphragm Valve

Check Valve  شیر یکطرفه

Pumps & Compressors

Pumps &

Compressors

Centrifugal Pumps

پمپهاي گریز از مرکز

Positive Displacement Pumps

پمپهاي جابجایی مثبت

Rotary دورانی

Reciprocating

تناوبی

Pumps

Compressors

Positive Displacement : Rotary

Positive Displacement: Reciprocating

Centrifugal

Centrifugal

Heat Exchangers

Furnace And Boiler

Heat Exchangers

shell and tube heat exchanger

مبدل هاي حرارتی لوله - پوسته

Vessels

Vessels

Cooling Tower

Reactor

Reactor

Tower

Line Symbols

Instrument Symbols

CONTROL LOOP

Set Point

+-

Heat exchanger

Heat exchanger control system

. Sensor/transmitter Also often called the primary and secondary elements.

. Controller The “brain” of the control system.

. Final control element Often a control valve but not always. Other common final control

elements are variable-speed pumps, conveyors, and electric motors.

 

AN ELECTRONIC CONTROL LOOP - CONTROLLING FLOW

Process Flow Diagram