HG/T 20519.31-1992 Equipment and machine legends in piping and instrumentation flow diagrams HG/T20519.31-1992 Standard download decompression password: www.bzxz.net

Equipment and machine legends in pipeline and instrument flow charts
HG 20519. 31-92
Equipment and machine legends in pipeline and instrument flow chartsHG20519.31-92
1. These regulations apply to the drawing of pipeline and instrument flow charts in chemical process design and construction drawings. 2. The size and proportion of each legend can be adjusted within a certain range when drawing. Generally, in the same engineering project, the size and proportion of the same type of equipment should have a fixed value or a specified range. When drawing, each legend should be vivid, clear, and accurately expressed; the drawing should be clear and beautiful, and the relative size of each legend should be appropriate. Pay attention to the coordination of size and proportion between the main body of the equipment (machine) and its auxiliary equipment or internal and external accessories. 3. Each legend is allowed to have a change in orientation when drawing. Each legend is also allowed to be combined or superimposed. 4. The legends of equipment (machines) not included in this regulation can be solved by the following methods. (1) According to the specific type, shape and internal and external features of the equipment and machine, a new legend shall be prepared with reference to this regulation. (2) Refer to or select the legend regulations of other relevant professions (3) When necessary, it shall be represented by a rectangular frame (or square frame), and the equipment position number and name shall be indicated in the frame. (4) The accessories that must be represented by the equipment and machine itself. For example, discharge holes, liquid collection bags, manholes, dirty expansion joints, etc. can be attached to the corresponding legends with some simple and clear graphic symbols. 5. The width of the graphic line is 0.25mm or 0.3mm. See the example figure.
Category code
Packed tower
Downcomer
Valve tower plate
Grid plate
Plate tower
Spray tower
Liquid receiving tray
Bubble tower plate
Ascent pipe
Category! Code
Ruiqiu Tower
Distributor, Sprinkler
Padding Defoaming Layer
Fixed Bed Reactor
Reaction Tag (with Stirring, Jacket)
Shell and Tube Reactor
Sieve Plate Tower Plate
(Wire Mesh》Defoaming Layer
Fluidized Bed Reactor
Category! Code
Box Furnace
Heat Exchanger (Tube Figure)
Tube heat exchanger
Shell-and-tube heat exchanger
Circular furnace
Cylinder guard
Fixed tube plate shell and tube heat exchanger
Floating head shell and tube heat exchanger
Kettle heat exchanger
Category code
Plate heat exchanger
Fin tube heat exchanger
Spray mystery cooler
Shell and tube (thin film) evaporator| |tt||Air supply air cooler
Spiral plate heat exchanger
Snake tube (coil type) heat exchanger
Scraped film evaporator
Exhaust air cooler
Fin-tube heat exchanger with fan
Category [Code]
Screw pump
Submersible pump
Blower
Centrifugal compressor
Two-stage reciprocating compressor Machine (L type)
Water ring vacuum pump
Reciprocating pump
Jet pump
(Horizontal)
Rotary pump gear pump
Diaphragm pump
Vortex pump
Rotary compressor
Reciprocating compressor
Four-stage reciprocating compressor
(Vertical)
Category
Conical top tank||tt| |Dome cone bottom container
Dry gas holder
Peng type container
Packing defoamer
(underground/semi-underground)
Tow, bottle, pit
Butterfly head container
Mixed gas holder
Horizontal container
Wire mesh defoamer
Pre-degassing tank
Flat top container
Cyclone separator
Class Other codeswwW.bzxz.Net
Thin-type electrostatic precipitator
Fixed bed filter
Vortex preventer
Heating or cooling components
Wet electrostatic precipitator
Filter with filter cartridge
Inserted tube type vortex preventer
Agitator
Impact plate
Category code
Hand chain hoist (with trolley)
Electric hoist
|Rotary crane
Cantilever crane
Belt conveyor
Single beam crane (manual)
Single beam crane (electric)
Hook bridge crane
Scraper conveyor
Category code
Bucket elevator
Belt quantitative feeder
Filter press
Perforated shell centrifuge
Screw Press
Trolley
Floor scale
Drum filter
Centrifuge without hole
Extruder
Electric motor
Kneading machine
Internal combustion engine, gas engine
Centrifugal expander, turbine
Steam turbine
Mixer
Other power machines
Piston expander
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