1、BRITISH STANDARD BS 1553-2: 1950 Graphical symbols for power generating plant Graphical symbols for general engineering UDC 620.4:003.62BS1553-2:1950 This British Standard, havingbeen approved by theMechanical Industry Standards Committee and endorsed by the Chairman oftheEngineering Divisional Coun
2、cil, was published under the authority of the General Council on 21September1950 BSI 03-1999 ISBN 0 580 32492 3 Co-operating organizations The Mechanical Industry Standards Committee, under whose supervision this British Standard was prepared consists of representatives from the following Government
3、 departments, and scientific and industrial organizations: Admiralty* Air Ministry* Associated Offices Technical Committee Association of Consulting Engineers Incorporated British Chemical Plant Manufacturers Association British Compressed Air Society British Electrical and Allied Manufacturers Asso
4、ciation* British Engineers Association* British Internal-combustion Engine Manufacturers Association* British Iron and Steel Federation British Railways Crown Agents for the Colonies Department of Scientific and Industrial Research Engineering Equipment Users Association Institute of Marine Engineer
5、s* Institute of Petroleum Institution of Civil Engineers* Institution of Gas Engineers* Institution of Heating and Ventilating Engineers Institution of Mechanical Engineers* Institution of Mechanical Engineers (Automobile Division) Institution of Production Engineers Locomotive Manufacturers Associa
6、tion Machine Tool Trades Association Ministry of Fuel and Power Ministry of Labour and National Service Ministry of Supply Ministry of Transport Ministry of Works* Office of the High Commissioner for India War Office* The Government departments and scientific and industrial organizations marked with
7、 an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this standard: Association of Technical Institutes British Coal Utilisation Research Association British Electrical and Allied Industries Research Association Gen
8、eral Post Office Institute of Fuel Institution of Chemical Engineers Institution of Electrical Engineers Institution of Engineers and Shipbuilders in Scotland Institution of Mining and Metallurgy Institution of Structural Engineers Institution of Water Engineers North East Coast Institution of Engin
9、eers and Shipbuilders Society of Chemical Industry Amendments issued since publication Amd. No. Date CommentsBS 1553-2:1950 BSI 03-1998 i Contents Page Co-operating organizations Inside front cover Foreword ii Section 11. Steam plant Group 11A. Steam generators 1 Group 11B. Prime movers 1 Group 11C.
10、 Condensers 2 Group 11D. Heat exchangers 2 Group 11E. Pumps, ejectors and fans 2 Group 11F. Tanks and de-aerators 3 Group 11G. Miscellaneous 4 Section 12. Reciprocating Internal-combustion engines 6 Section 13. Gas turbines 7 British Standards on allied subjects 7 Typical diagram of steam power gene
11、rating plant 8 Typical diagram of Diesel engine driving air-compressor 9 Typical diagram of Diesel engine used as a gas generator for a power gas turbine 10 Typical diagram of gas-turbine cycle 11 Alphabetical index of symbols 12BS1553-2:1950 ii BSI 03-1999 Foreword In order to keep abreast of progr
12、ess in the industries concerned, BritishStandards are subject to periodical review. Suggestions for improvements will be recorded and in due course brought to the notice of the committees charged with the revision of the standards to which they refer. A complete list of British Standards, numbering
13、over 9,000, fully indexed and with a note of the contents of each, will be found in the BSI Catalogue which may be purchased from BSI Sales Department. The Catalogue may be consulted in many public libraries and similar institutions. It has long been felt that, except in the electrical engineering f
14、ield, there has been a lack of uniformity in the method adopted for the preparation of schematic diagrams of engineering plant generally and that there is need for standardized symbols by which particular items of the plant can conveniently be identified, applying equally to different branches of en
15、gineering. To meet this need, the preparation of a series of British Standards for graphical symbols for general engineering has been undertaken. This Part, which provides graphical symbols for Power Generating Plant, forms Part 2 of this series. Part 1, published separately, deals with graphical sy
16、mbols for Pipes, Valves and Fittings. Part 3 deals with Compressing plant. For other relevant British Standards, see list on page 7. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Co
17、mpliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 12 and a back cover. This standard has been updated (see copyright date) and may have had amendments i
18、ncorporated. This will be indicated in the amendment table on theinside front cover.BS 1553-2:1950 BSI 03-1999 1 Section 11. Steam plant Group 11A. Steam generators Group 11B. Prime movers 11A1 Boiler, general symbol. 11A2 Superheater, Flue-gas re-heater or Economizer. Additional connections may be
19、shown as required for air, flue gas, etc. 11B1 Steam turbine, general symbol or single-flow turbine cylinder. 11B2 Double-flow steam-turbine cylinder. NOTEMulti-cylinder turbines may be shown by combinations of these symbols. Example: Three-cylinder turbine with double-flow exhaust cylinder. In such
20、 cases as mixed-flow, pass-out, or bled-steam turbines, additional connections may be shown on the turbine cylinder. 11B3 Reciprocating steam engine, general symbol. Number of cylinders may be shown by a figure within the symbol. 11B4 Reciprocating steam-engine cylinder. NOTEAny number of these symb
21、ols may be combined to show a complete engine. Example: Four-cylinder triple-expansion engine.BS1553-2:1950 2 BSI 03-1999 Group 11C. Condensers Group 11D. Heat exchangers Group 11E. Pumps, ejectors and fans 11C1 Surface condenser unit. 11C2 Surface condenser unit, divided on water side. 11C3 Jet con
22、denser unit. 11D1 Live-steam re-heater. 11D2 Feed-water heater, de-superheater, attemperator or water cooler, surface type. 11D3 Air pre-heater. 11E1 Pump, general symbol. 11E2 Pump, positive-displacement.BS 1553-2:1950 BSI 03-1999 3 Group 11F. Tanks and de-aerators 11E3 Air ejector, steam-jet or th
23、ermo-compressor type. 11E4 Forced-draught fan. 11E5 Induced-draught fan. NOTEThe use of reference letters other than those given in 11E2, 11E4, and11E5 is not recommended, because it is not usually important to specify the type of pump or fan on a diagram. 11F1 Open tank. Connections may be shown as
24、 required. 11F2 Closed tank, vacuum type. 11F3 Closed tank, pressure type. 11F4 Closed tank, steam-sealing type. 11F5 De-aerator. 11F6 De-aerator with storage tank and vent condenser.BS1553-2:1950 4 BSI 03-1999 Group 11G. Miscellaneous 11G1 Shaft extension or mechanical coupling between machines. Ex
25、ample: Turbine-driven pump 11G2 Gearing, general symbol. 11G3 Clutch, general symbol. 11G4 Flash box. 11G5 Air cooler. 11G6 Oil cooler or oil heater. 11G7 Steam receiver. 11G8 Steam separator. 11G9 De-superheater or attemperator, spray type.BS 1553-2:1950 BSI 03-1999 5 11G10 Evaporator. 11G11 Feed-w
26、ater heater, contact type. 11G12 Cooling tower. 11G13 Open-ended screen. 11G14 Centrifugal clarifier. 11G15 Centrifugal separator with heavy and light fraction discharges. 11G16 Centrifugal separator, as 11G15 with wash-water connection. Symbols 11G14 to 11G16 may be used in conjunction with other s
27、ymbols as required. Example: A.C. motor-driven centrifugal oil separator with positive wash-water inlet and discharge pumps. 11GI7 Heat load, e.g., Process plant.BS1553-2:1950 6 BSI 03-1999 Section 12. Reciprocating internal-combustion engines The top three connections of this symbol represent fuel
28、inlet, air inlet and exhaust. The centre two connections represent jacket-cooling medium inlet and outlet (where fitted). The bottom two connections represent lubricating-oil inlet and outlet (where fitted). Particulars of the engine may be shown by means of symbols from the following lists, inset i
29、n the appropriate portion of the general symbol. NOTESymbols for ancillary equipment should be taken from appropriate items in other parts of this standard. 12A1 Reciprocating internal-combustion engine, general symbol. in the top rectangle: Cycle: Two-stroke 2S Four-stroke 4S In the centre rectangl
30、e: Cylinder arrangement: In line L Vee V Radial R “H” type H Opposed O Number of cylinders: Shown by a figure. Method of ignition: Compression ignition CI Spark ignition SI In the bottom rectangle: Action: Single-acting SA Double-acting DA Example: Four-stroke, V-type, 12-cylinder, compression-ignit
31、ion single-acting internal-combustion engine.BS 1553-2:1950 BSI 03-1999 7 Section 13. Gas turbines NOTESymbols for ancillary equipment should be taken from appropriate items in other parts of this standard. British standards on allied subjects BS 1553, Graphical symbols in general engineering. BS 15
32、53-1, Pipes and valves. BS 1553-3, Compressing plant. BS 1553-4, Heating and ventilating plant. BS 974, Symbols for use in diagrams of chemical plant. BS 1646, Graphical symbols for instrumentation. BS 308, Engineering drawing-office practice. BS 1192, Architectural and building drawing-office pract
33、ice. For letter symbols and abbreviations, reference should be made to: BS 1991, Letter symbols, signs and abbreviations Part 1: General. 13A1 Gas turbine general symbol or single-flow turbine cylinder. 13A2 Double-flow gas-turbine cylinder. 13A3 Compressor, general symbol. 13A4 Combustion chamber,
34、general symbol.BS 1553-2:1950 8 BSI 03-1999 Typical diagram of steam power generating plantBS 1553-2:1950 BSI 03-1999 9 Typical diagram showing A 4-S V-12 SA diesel engine driving an air compressor, and some ancillary equipment directly associated with the engine NOTENumbered labels are inserted to
35、give ready reference to the position of the symbol in the standard and are not intended to appear in a normal diagram. No. 3A5 appears in Part 1 of this standard.BS1553-2:1950 10 BSI 03-1999 Typical diagram showing A 4-S V-12 SA diesel engine used as a gas generator for a power gasturbine ancillary
36、equipment is omitted NOTENumbered labels are inserted to give ready reference to thc position of the symbol in the standard and are not intended to appear in a normal diagram.BS 1553-2:1950 BSI 03-1999 11 Typical diagram of gas turbine cycle NOTENumbered labels are inserted to give ready reference t
37、o the position of the symbol in the standard and are not intended to appear in a normal diagram.BS1553-2:1950 12 BSI 03-1999 Index of symbols (The references are to the item numbers in the tables.) Air cooler, 11G5 Air ejector, 11E3 Air pre-heater, 11D3 Attemperator, spray type, 11G9 Attemperator, s
38、urface type, 11D2 Boiler, 11A1 Box, flash, 11G4 Centrifugal clarifier, 11G14 Centrifugal separator, 11G15 and 11G16 Chamber, combustion, 13A4 Closed tank, pressure type, 11F3 Closed tank, steam-sealing type. 11F4 Closed tank, vacuum type, 11F2 Clutch, 11G3 Combustion chamber, 13A4 Compressor, 13A3 C
39、ondenser, jet, 11C3 Condenser, surface, 11C2 Cooler, air, 11G5 Cooler, oil, 11G6 Cooler, water, 11D2 Cooling tower, 11G12 Coupling, mechanical, 11G1 Cylinder, double-flow gas-turbine, 13A2 Cylinder, reciprocating steam-engine, 11B4 Cylinder, single-flow gas turbine, 13A1 Cylinder, single-flow turbin
40、e, 11B1 De-aerator, 11F5 and 11F6 De-superheater, spray type, 11G9 De-superheater, surface type, 11D2 Double-flow steam turbine cylinder, 11B2 Economizer, 11A2 Engine, reciprocating, internal combustion, 12A1 Engine, reciprocating, steam, 11B3 Evaporator, 11G10 Fan, forced-draught, 11EA Fan, induced
41、-draught, 11E5 Feed-water heater, contact type 11G11 Feed-water heater, surface type, 11D2 Flash box, 11G4 Flue-gas re-heater, 11A2 Forced-draught fan, 11E4 Gas turbine, 13A1 Gas turbine cylinder, single-flow, 13A1 Gas turbine cylinder, double-flow, 13A2 Gearing, 11G2 Heat load, 11GI7 Heater, feed-w
42、ater, contact type 11G11 Heater, feed-water, surface type 11D2 Heater, oil, 11G6 Induced-draught fan, 11E5 Internal-combustion engine, reciprocating, 12A1 Jet condenser, 11C3 Live-steam re-heater, 11D1 Load, heat, 11G17 Mechanical coupling, 11G1 Multi-cylinder turbine, 11B2 Oil cooler, 11G6 Oil heat
43、er, 11G6 Open-ended screen, 11G13 Open tank, 11F1 Positive-displacement pump, 11E2 Pre-heater, 11D3 Pressure-type closed tank, 11F3 Pump, 11E1 Pump, positive-displacement, 11E2 Reciprocating internal combustion engine, 12A1 Reciprocating steam engine, 11B3 Reciprocating steam engine, cylinder, 11B4
44、Receiver, steam, 11G7 Re-heater, flue-gas, 11A2 Re-heater, live-steam, 11D1 Screen, open-ended, 11G13 Separator, centrifugal, 11G15 and 11G16 Separator, steam, 11G8 Shaft extension, 11G1 Single-flow steam-turbine cylinder, 11B1 Steam engine, reciprocating, 11B3 Steam-jet type air ejector, 11E3 Steam
45、 receiver, 11G7 Steam-sealing closed tank, 11F4 Steam separator, 11G7 Steam turbine, 11B1 Steam-turbine cylinder, double-flow, 11B2 Steam-turbine cylinder, single-flow, 11B1 Superheater, 11A2 Surface condenser, 11C1 and 11C2 Tank, closed, 11F2-11F4 Tank, open, 11F1 Thermo-compressor type air ejector
46、, 11E3 Tower, cooling, 11G12 Turbine, gas, 13A1 Turbine, steam 11B1 Turbine steam, multi-cylinder, 11B2 Vacuum-type closed tank, 11F2 Water cooler, 11D213 blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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