Standard [WITHDRAWN] DIN Flow sheets and diagrams of process plants – Graphical symbols. German title: Fließbilder. A Picture symbols defined by DIN , The following picture symbols are standardised by DIN 28 , part 3. Only the parts of the norm relevant. DIN – DRAFT. Draft Document – Flow diagrams of process units – Definitions. standard by Deutsches Institut Fur Normung E.V.
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Email Address never made public. On the detailed flow-sheets used for design and operation, the equipment is normally drawn in a stylised pictorial form.
FLOW-SHEET PRESENTATION – I
Leave a Reply Cancel reply Enter your comment here To find out more, including how to control cookies, see here: This is available in an English translation from the British Standards Institution. A block diagram is the simplest form of presentation. The various types of flow-sheet are discussed below. The stream flow-rates and compositions can be shown on the diagram adjacent to the stream lines, when only a small amount of information is to be shown, or tabulated separately.
Block diagrams are useful for representing a process in a simplified form in reports and textbooks, but have only a limited use as engineering documents. Only a limited amount of information can be shown in this way, and it is difficult to make neat alterations or to add additional data. As the process flow-sheet is the definitive document on djn process, the presentation must be clear, comprehensive, accurate and complete.
The blocks can be of any shape, but it is usually diin to use a mixture of squares and circles, drawn with a template. You are commenting using your WordPress.
Physical property data, mean values for the stream, such as: The data on the flow-rate of each individual component, on the total stream flow-rate, and the percentage composition, can be shown on the flow-sheet in various ways.
If they are then shown on the flow-sheet, they are available for use by the specialist design groups responsible for the subsequent detailed design.
The essential items must always be shown, the optional items add to the usefulness of the flow-sheet but are not always included.
Fill in your details below or click an icon to log in: The simplest method, suitable for simple processes with few equipment pieces, is to tabulate the data in blocks alongside the process stream lines. Notify me of new comments dib email. Alterations and additions can be easily made.
FLOW-SHEET PRESENTATION – I | Chemical Engineering Projects
In another method each stream line is numbered and the data tabulated at the bottom of the sheet. By continuing to use this website, you agree to their use. Notify me of new posts via email.
You are commenting using your Facebook account. In Europe, the German standards organisation has published a set of guide rules and symbols for flow-sheet presentation, DIN Each block can represent a single piece of equipment or a complete stage in the process. For tender documents or company brochures, actual scale drawings of the equipment are sometimes used, but it is more usual to use a simplified representation.
A Picture symbols defined by DIN
You are commenting using your Twitter account. Nominal operating pressure the required operating pressure. With complex processes, their use is limited to showing the overall process. The amount of information shown on a flow-sheet will depend on the custom and practice of the particular design office. It is best that each group use the same estimates, rather than each decide its own values. Stream temperature, degrees Celsius preferred. This is the method generally used by professional design offices.