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| موضوع: كتاب Pneumatic Handbook - 8th Edition الخميس 04 يوليو 2013, 10:46 am | |
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أخواني في الله أحضرت لكم كتاب Pneumatic Handbook 8th Ed Anthony Barber
و المحتوى كما يلي :
Table of Contents Sect. 1 Basic Principles Sect. 2 The Compressor Sect. 3 Energy and Efficiency Sect. 4 Compressed Air Transmission and Treatment Sect. 5 Applications Sect. 6 Valves and Sensors Sect. 7 Actuators Sect. 8 Seals Sect. 9 Applied Pneumatics Sect. 10 Vacuum and Low Pressure Sect. 11 Engineering Data Advertisers Buyers Guide Editorial Index SECTION 1 Basic Principles NOMENCLATURE AND UNITS TERMS AND DEFINITIONS PROPERTIES OF AIR AND GASES GAS LAWS AND THERMODYNAMICSNOMENCLATURE AND UNITS Nomenclature Unless otherwise specified in the text, the following symbols are used consistently throughout this book: A = cross sectional area (m 2) Cp = specific heat at constant pressure (J/kg K) c~ = specific heat at constant volume (J/kg K) C = flow coefficient for orifices and nozzles = discharge coefficient corrected for velocity of flow = Cd (1-~ 4) Cd = discharge coefficient for orifices D = internal diameter of pipe (m) d = internal diameter of pipe (mm) f - Darcy-Weisbach friction factor g = gravitational constant (9.81 m/s 2) K = coefficient of heat transmission W/(m 2 K) k = thermal conductivity W/(m K) L = length of pipe (m) M = mass(kg) N~ = Nusselt number = Q1/kA0 m see text N = rotational speed (r/min) n = rotational speed (r/s) P = absolute pressure (N/m 2) P" = gauge pressure (N/m 2 ) p = absolute pressure (bar) p " Pr = Q _ - q = Ro = gauge pressure (bar) Prandtl number = (Cpg)/k m see text heat (J) flow rate (m3/s) universal gas constant = 8.314 J/(K mol) = 8314 J/(K kmol)4 THE PNEUMATIC HANDBOOK R = individual gas constant (J/kg K) = Ro/M where M = molecular weight of the gas Re = Reynolds number = pvl/lx ~ see text S = stroke length (m) t = time (s) T = absolute temperature (K) = temperature in °C + 273 V = volume (m 3) V~ = specific volume (m 3/kg) V = velocity (m/s) w = mass of gas (kg) W = work done (kW) Z = compressibility factor Greek letters 13 = ratio of small to large diameter in orifices and pipes 3, = ratio of specific heats = cp/c~ A = signifies an increment in a unit e = absolute roughness of pipes (mm) v = kinematic viscosity (m2/s) Ix = dynamic viscosity (Pa s) p = fluid density (kg/m 3) t~ = relative humidity 11 = efficiency rla = isentropic (adiabatic) efficiency rlv = volumetric efficiency V = ratio of air consumed to air delivered by compressor Subscripts for diameters and areas defines smaller 2 defines larger Subscripts for fluid flow, pressures, temperatures and volumes 0 defines base or reservoir conditions defines initial, inlet or upstream 2 defines final, outlet or downstream Other subscripts are defined as they occur Note on units SI units are used consistently throughout this handbook. Certain conventions within the SI structure are used generally throughout the European compressed air industry. These are as follows:NOMENCLATURE AND UNITS 5 Compressor capacity: Specific power consumption: Pressure: Length: Mass: Torque: Rotational speed: Moisture content: the traditional unit for compressor capacity is m3/min, which most manufacturers prefer to quote. Litre/s (l/s) is however the recommended unit (1 Us = 0.06 m3/min). kW h/m 3 or J/l. bar is preferred usage for air pressure, although Pascal is theoretically better (1 bar = 10SPa). MPa is also found. metre for dimensions greater than 1 metre, millimetre for dimensions less than 1 metre. kilogram or tonne. Newton metre (N m). rev/min is widely used although rev/s is the preferred unit. kg/m 3 or g/m 3 Conversion factors For the convenience of those readers more familiar with Imperial units, the following conversion factors may be used. The values quoted are adequate for most engineering purposes, ie accurate to at least 3 significant figures: Acceleration 1 ft/s2 = 0.305 m/s 2 Area 1 ft2 = 0.093 m 2 Density 1 lb/ft 3 = 16.02 kg/m 3 Energy, work, heat 1 ft lbf = 1.356 J 1 Btu = 1055.06 J Entropy 1 Btu/°F = 1899 J/K Force 1 lbf = 4.448 N 1 tonf = 9.964 kN Length 1 in = 0.0254 m 1 ft = 0.3048 m Mass 1 lb = 0.4536 kg 1 ton = 1.016 tonne Moment of inertia 1 lb ft2 = 0.04214 kg m 2 Power 1 hp = 0.746 kW Pressure 1 lbf/in 2 = 0.06895 bar = 6895 Pa Specific capacity 1 (ft3/min)/hp = 0.03797 (m3/min)/kW Specific energy 1 Btu/ft 3 = 0.01035 kWh/m 3 Temperature 1 °F = 9/5 °C + 32 Torque 1 lbf ft = 1.356 N m6 THE PNEUMATIC HANDBOOK Velocity Volume V o l u m e flow Viscosity (dynamic) Viscosity (kinematic) 1 ft/s = 0.305 m/s 1 f t 3 = 0.0283 m 3 1 fta/s = 0.0283 m3/s 1 lb s/ft 2 = 47.88 Pa s (n.b. 1 centipoise = 10.3 Pa s) 1 ft2/s = 0.0929 m2/s (n.b. 1 centistoke = 10~ m2/s)TERMS AND DEFINITIONS Terms and definitions used in the Compressor Industry (see also BS 1571 and BS 5791): Adiabatic compression Aftercooling Clearance volume Compressibility factor Compression ratio Compressor Compressor, booster Compressor, displacement Compressor, dynamic Compressor, multistage Compressor capacity One in which the compression takes place with no heat transfer across its enclosure. (See isentropic.) Removal of heat from the air after compression is completed. The volume remaining inside a compression space at the end of the compression stroke. Ratio of the actual volume of a compressed gas to its volume calculated in accordance with the ideal gas laws. Ratio between discharge and final pressure. A machine which draws in air or gas at one pressure and delivers it at a higher pressure. In which the inlet gas has already been compressed. In which the pressure rise is achieved by allowing successive volumes of air to be inspired and exhausted from an enclosed space by displacement of a moving member, eg piston, screw and sliding vane. In which the pressure rise is achieved by converting kinetic energy into pressure energy in its passage through the machine, eg radial and axial fixed vane. In which the increase in pressure takes place in two or more stages. The volumetric flow rate of the gas as compressed and delivered, referred to the conditions of temperature and pressure at the inlet. For air this is referred to as Free8 THE PNEUMATICHANDBOOK Condensate Displacement Efficiency, adiabatic Efficiency, isothermal Efficiency, volumetric Filter Free air Free Air Delivered Ideal compression lntercooling Isentropic process Isothermal process Packaged compressor Polytropic process Pressure ratio Pressure regulator Air Delivered (FAD). When referred to standard conditions, 1.013 bar and 15°C, this is known as standard capacity. BS 5791 suggests that this expression should be replaced by "volume rate of flow". Liquid formed by condensation of water vapour. Actual volume swept by the first (or only) stage of a displacement compressor. Ratio of the adiabatic power consumption to the shaft input power. Ratio of the isothermal power to the shaft input power. The ratio of the compressor capacity to its displacement. A device for removing contaminants from a fluid. Atmospheric condition at the inlet point of a compressor. See above under Compressor capacity. Conditions appertaining to the isentropic compression of an ideal gas. The cooling of compressed air (or gas) between compression stages. A thermodynamic process which takes place at constant entropy. (AQ/T - constant.) A reversible adiabatic process is also isentropic, so the two terms are often used interchangeably in compressor technology. Isentropic is the preferred usage when describing a compression cycle. A thermodynamic process which takes place at constant temperature. Isothermal compression is not realisable in practice, since it would have to take place very slowly. However it is theoretically the most efficient and is therefore used as the basis of comparison. A complete powered compressor unit ready to operate. Compression or expansion of a gas where the relationship PV" = constant applies. Ratio between absolute discharge pressure and absolute inlet pressure. A valve or similar device for reducing line pressure to a lower (constant) pressure.TERMS AND DEFINITIONS 9 Pulsation damper Relative clearance volume Relative humidity Separator Specific capacity Specific energy Stage pressure ratio Surge limit Temperature, absolute Temperature, ambient Temperature, inlet Temperature, discharge Temperature, total Vacuum Vacuum pump A chamber designed to eliminate pulsations present in air flow. Ratio of clearance volume to volume swept by a compressing element. Ratio of water vapour actually present in air to the saturated water vapour content, at a given temperature and pressure. A device for removing liquids (eg water and oil) from compressed air. Compressor capacity per unit of input power. Input power per unit of compressor capacity. Compression ratio for any particular stage in a multistage compressor. The flow limit below which operation of a dynamic compressor becomes unstable. Temperature above absolute zero in Kelvin. Temperature of the environment. Total temperature at the standard inlet point of the compressor. Total temperature at the standard discharge point of the compressor. Temperature at the stagnation point of an airstream. Difference between atmospheric and a lower system pressure. A machine for generating a pressure below atmospheric. EDITORIAL INDEX absolute temperature, definition 9 acceptance tests 81---4 activated carbon filters 177, 189 actuators 475--88 adiabatic compression, definition 7 adiabatic efficiency, definition 8 aerating 413 aftercoolers 102, 121--2 aftercooling, definition 7 air atmospheric 13 breathable 399 breathing filtration 183--92 composition 11 compressed 15, 134, 165,396--7, 399~ 403 distribution 217--28, 279 compression 23--5 consumption cylinders 533 motors 352 paint sprayers 371,374 tools 299, 304--5, 325 contaminants 166, 168---70, 186--9, 193 demand 227 dry 201--3 flushing 323, 334, 338---9,403 heating 216 isentropic exponent 22 leakage 65 mass flow 453 moisture content 12, 13, 171, 201, 212--15,277 properties 11~19 quality 166, 167 sound in 18, 19 springs 488 standards table 167 sterile 193--200 air bellows 488 air blast coolers 128 air blowers 44, 47, 59---60, 388, 581---93 air bubble techniques 413m14 air chucks 485--7 air cylinders 289--90 air driven ejectors 573---4, 576---80 air dryers 201--16 air films 405--12 air filters 165, 170---1, 193--200 air flow adiabatic 437 damping 437,439, 448 laminar 456 measurement 437--54 meters 446---54 pulsations 444, 450 smoothing 437, 439 straightener 452 sub-critical 437 swirl 440 air gauging air supply 417 control 420 control orifice 417 digital display 420 electronic 420 examples 417-- 19 with flow indicators 419 mechanical contact 419 multiple jet 418 with pressure gauge 419 principles 415--17 signal conditioning 418 single jet 418646 THE PNEUMATIC HANDBOOK temperature effects 417 air lift pumps 394----6 air line filters 177--9 air motor hoists 353---4 air motors applications 353--8 brake 350---1 characteristics 341,344, 351 control 350 diaphragm 347 gear boxes 350---1 gear type 349--50 governor 343 impulse turbine 349 manufacture 345 performance 341-----4 piston 346--9 power 342, 343,352 Roots 349 speed 342, 346, 348 torque 343,348, 349 turbine 349 vane 344---6, 357 air receivers corrosion 112 design 108, 111D 12 ends 109D11 flat 112 hemispherical 112 inspection 111 intermediate system 107 legislation 106--8 major system 107 materials 108 minor system 107 openings 111 safety 279 standards 108 storage capacity 104--6 wall thickness 109 air skates 408~10 air springs damping 385 forces 379 formulae 378 hydro pneumatic 379 installation 384--5 rolling diaphragms 385 stiffness 385 air tools 287--98 air velocities, fans 584 airplugs 418 airscrews, fan blowers 583 altitude compressor performance 62 motor performance 63 Amagat's law 22 ambient temperature, definition 9 Amonton's law 21 amplifiers pneumatic 459 turbulence 547 angle of repose 391 apertures, conductance 565 atmosphere properties 18 standard 261 Avogadro's law 21--2 axial flow fans 589 noise 587m8 back-streaming, diffusion pumps 571 backing pumps 566 backward-curved blades 590---1 band cylinders 479m80 bearings air films 405---7, 410 cooling 411 cylinders 494 flat air 407 journal 410 liquid hydrodynamic 410 precision surfaces 406 thrust 405, 410 bellows 380-----4,488 Bendix drive 356~7 bifurcated co-axial fan 589 biodegradable lubricants 230 blades, fans 583, 587--8,589, 590---2 blank-off pressure, vacuum pumps 569 blenders 396---7 blowers low pressure 44 positive-displacement 583 regenerative 592--3 Roots 44, 47, 388, 581--3 performance 59--60 turbo 388 booster compressor, definition 7 borosilicate filters 194 Bourdon, Eugene 262 Bourdon tube pressure gauge 262~3,442, 443 Boyle's law 21 breakers 319--22, 324 legislation 361~2EDITORIAL INDEX 647 noise 360 breathing air filtration apparatus 190---1 contaminants 185----6 hopcalites 187--8 legislation 183 low pressure 184 packaged systems 189 standards 184, 190---1 cable cylinders 479 CAGI-Pneurop Code 363 carbon dioxide filtration 188 carbon monoxide filtration 186---7 catalysis 187 centrifugal fans noise 587--8 regenerative blowers 592--3 Charles's law 21 chillers 208 chipping hammers 315--17, 368 vibration 368 circuit analysis Boolean algebra 547 Cascade techniques 547 complex circuits 546--7 cylinder control 544, 546 cylinder cycling 541--2 cylinder reciprocation 542--3 cylinder return 540---1 cylinder speed 539---40 cylinders double-acting 538--9 single-acting 537~8 Grafcet functions 547 Karnaugh-Veitch maps 547 logic circuits 546---50 basic 547--50 moving part 547 logic functions 547--8 logic symbols 548 remote control 539 safety 544---6 speed control 543---4 clearance volume, reciprocating compressors 56 clearance volume, definition 7 closed loop system 149--54 closed-circuit cooling 99~100 coarse vacuum, applications 576---80 coating (industrial), vacuums 576 commissioning 279~86 hydraulic test 279 pressure testing 279 safety 280 compressed air advantages 134 applications 165 blending 396m7 distribution branch 221--2 dead end 217 design 218--21 freezing 223 geometry 221 installation 222 layout 221 leakage 222, 223--7 mains 217 mains fall 22 lm3 maximum flow 219--20, 225,226 moisture 221 outdoor 223 pipeline 217--18 power loss 224 ring 217 safety 279 sizing 218--21 filtration 165--82 marine applications 399---403 mixing 396--7 transmission 134 uses 134 water condensation 15 compressibility effects 15--19 factor 15--16 definition 7 compression adiabatic, definition 7 curve 32 cycle 54 ideal, definition 8 isentropic 24 isothermal 23--4, 32 multi-stage 53 polytropic 23, 24m5, 53 ratio definition 7 ejectors 573 vacuum pumps 563 compressors acceptance tests corrected capacity 83 corrected power 83 preliminary 81648 THE PNEUMATIC HANDBOOK preparations 81 report 81~2 standards table 83 axial flow 32, 51 booster, definition 7 capacity, definition 7--8 centrifugal 51 cooling 122~3 classification 29m51 control 91--102 crank arrangements, table 69 definition 7 delivery pipe 67~8 tuned 70 diaphragm performance 41m2 properties 41--2 types of 40---1 discharge pipe 71, 72 displacement, definition 7 dynamic 47--50 dynamic, definition 7 efficiency table 54 energy recovery 68, 69 fires 119 flow rate 445 forces 70 foundations 68m73 flexible mountings 70 heat recovery 68, 69 installation centralised 65 configuration 71 decentralised 65 intake 65, 66---7 location 66 numbers of 65 rotary 72~3 two-stage 72 intake 66---7 liquid ring 44--5 lubrication 113m20 maintenance 292--5 mobile 75--80 multistage, definition 7 noise reduction 66, 75, 79, 85--90, 360, 445 packaged 71--3 definition 8 performance 31, 53---63 pipes, resonance 87 positive displacement 57--62 protection 99~102 reciprocating 32m5, 56--7, 68--70, 113-- 17, 122----3,293-----4 rotary 33---40, 57---9, 72~3, 94---7, 118-- 19, 152, 179, 294---5 rotary tooth 45---7 selection 29--51 ambient conditions 31 cooling 31 costs 32 demand 29 maintenance.31 noise 31 vibration 31 silencers 86---7 absorptive 87 interstage 89 venturi 87 sliding vane 33, 42--5, 57~8, 59, 117m 18, 346 specific speed 61 surge 51 turbocompressors 47--50, 60---2, 119 water-cooled 68 concrete breakers s e e breakers condensate definition 8 emulsion 237 separators 236 treatment 229--37 filtration 236 oil/water separators 233--7 settling 235 condensate treatment 229--38 condensation rate 15 condensers 570 conductance, vacuum pumps 564---5, 566 contaminants air 166, 168--70, 186---9, 193 bacteria 193 carbon dioxide 188 carbon monoxide 186---7 inducted 168--70 nitrogen oxide 189 nitrous oxide 189 odours 189 oil 186 disposal 229 continuous flow pumps 565 contractors tools 319--30 control auto-idling 97 compressors 9 1 ~ 102 continuous 91EDITORIAL INDEX 649 cylinder speed 539---40 cylinders 500, 544, 546 discontinuous 91 humidity 172 intake throttling 94 motors 95--9 multi-compressor 97m8 multi-pressure 95 on-off cycling 92 operating speed 543-----4 pressure regulator 92 pulse-width modulation 97 reciprocating cylinder 541 remote 539 reverse flow 93----4 robotics 557 rotary compressors 94 slide valve 94--5 speed 432--5 stop-start 105---6 suction valve unloading 93 temperature 100 three step unloading 93 time delay 543---4 valves 423m36 conveying factor 393 conveying tools 387--98 coolers 102, 121--8, 206, 208 cooling 121--8, 155----62,575 cooling towers 100, 159---60 copper pipes 240---1 corrosion, cylinders 491 cups, suction 576--80 cushioning 505--9 cylinder hoists 353 cylinders air consumption 533 air pressure 533 automatic cycling 541--2 automatic return 540---1 band 479 bearings 494 buckling 504 cable 479 characteristics 532 clamps 502 compact 498--9 composite 499m500 construction 489m502 control 500 corrosion 491 cushioning 505--9 hydraulic 507~9 damping 506 diameter 503 diaphragm 477--8 double-acting 424, 481,486, 490, 491,497, 538--9 dual control 544 ends 492m3 fittings 495 flow analysis 529--35 friction 503 guide rods 497 heavy duty 490 installation 509--10 light duty 490 long-stroke 478 magnetic 479 materials ends 492--3 mounts 492 pistons 492, 493----4 tube 491 mounting 489, 495--6 multi-position 499--500 non-lubricated 494---5 non-rotating rod 496---8 performance 503wl 0, 532 pistons 34, 492--4, 497, 525,532---4 position sensors 500---2 pressure limitations 535 reciprocation 542--3 rings 494 rodless 478--81,509, 554 rods 496, 504---5 seals 506, 513 selection 503--10 short-stroke477--8, 486, 498--9 single-acting 490, 537--8 special 499--500 speed control 539---40 speeds 507 standards 489 strength 503-----4 tandem 509 testing 509--10 three-position 499--500 thrust 532 tie rod 493 tube material 491--2 washers 505--6 wear 491 Dalton's law 21 Darcy formula 136, 140650 THE PNEUMATIC HANDBOOK Darcy friction factor 136 determination 138---40 pipes 142 Darcy-Weisbach formula 136 depression, vacuum pumps 563 design fans 584---7, 589 vacuum pumps 563,566--7 dewpoint 13, 166, 207, 213 diaphragm cooling 122--3 diaphragm cylinders 477--8 diaphragm pressure gauge 265--6, 442 diatomic gases, work of depression 564 diffusion pumps 570---1 discharge legislation 229 oil/water separators 233--7 regulation 229 standards 230 user responsibilities 230--1 discharge temperature, definition 9 displacement, definition 8 double acting cylinders 424, 481,486, 490, 491,497, 538--9 down-the-hole hammer 336---7 drains automatic 233 ball float trap 232 condensate 231,234 filters 232 freezing 233 timers 233----4 dredging 394 drills air-leg 331--2 control 312 dust 339 features 322---4 hand held 331 hydraulic 333 lead 327 operation 327 performance 328--30 precision 312 pusher leg 331--2 rig mounted 333--5 stoper 332--3 stress waves 329--30 underground 334m5 underwater 401 dryers 20 l m 16 absorption 215-- 16 adsorption 208--9 deliquescent 215 efficiency 212 filters 204 heat regenerated 211 heatless 209--12 membrane 216 non-deliquescent 216 rotary 214 salt 215 sorption system 208 types 202 drying 203-----4,205,575 ducted fans 588 dust collectors 339 dynamic compressor, definition 7 efficiency adiabatic 8, 25 fans 584, 588 filters 167--8, 174, 177 isentropic 25, 54 isothermal 8, 25 losses 54 reciprocating compressors 56---7 volumetric 8, 55, 56----7, 93 effluent s e e discharge ejectors 572---4 electric motors 341 electronic pressure gauges 264---5 energy balance 131--2 compressed air as 133-----4 dispersal 131--4 generation 131----4 kinetic 132 output 132--3 savings 159 Energy Saver Pack 159 entropy 23 equipment air supply 222 hydraulic 134 percussive 153 pneumatic 132, 134 pressure requirements 218 safety 134 exhaust hoses 402 exhausters, air blowers 581 fail-safe coolers 127--8 fans axial flow 587--9 bifurcated co-axial 589EDITORIAL INDEX 651 concepts and definitions 583-----4 design 584--7, 589 ducted 588 hub ratios 589 legislation 585,587, 588 noise 587--8, 590---2 performance characteristics 584---7 power 584, 585 pressure 584 pressure coefficients 585 propeller type 588---9 radial flow 590--2 straight-radial blades 590---2 two-staging 589 filters activated carbon 177, 189 air 165, 170---1 air line 177~9 borosilicate 194 check list 179--80 coalescing 173----4, 176 conveying 392 definition 8 drains 232 drying 203----4 efficiency 194 filter regulator 259 gas 193~200 grades 175 hollow fibre 195 housings 195 legislation 180--- 1 life 179 lubricator 259 maintenance 290 membrane cartridge 194 microfibres 194 oil 174---6 pre-filters 172~3, 195 selection 179, 195 steam 197m8 sterilization 193~200 testing 179 two stage 174 filtration 165~81 activated carbon 177 carbon dioxide 188 carbon monoxide 186---7 catalysis 187 compressed air 165--82 efficiency 167~8, 174, 177 hydrocarbons 177 legislation 180----1 nitrogen oxide 189 nitrous oxide 189 odours 189 oil 174---6, 177, 186 packaged systems 189 solids 177 systems 178 validation 198m200 flow adiabatic 135 compressible, formula 136m7 discharge coefficient 145 isentropic 135 isothermal 135 formula 136 losses 148 nozzles 144---8 orifice 144---8 subcritical 145~6 ventilation 156---7 flow analysis 529~35 circuit analysis 529 cylinder performance 532 piston velocity 532----4 pressure limitations 535 speed control 534---5 valves data 529~32 flow curves 531 flow control 432 fluid jet pumps 571~3 Fluid Power Centre (FPC) 149m50 forced draft cooling 122~3 forward-curved blades, fans 590---1 free air, definition 8 freezing 100 friction factor s e e Darcy friction factor Fuller-Kinyon pump 389 gas constant 12, 13, 17 laws 21--5 gas ballast 569~70 gas filters 193~200 gas springs 378 gases compressible flow 135~6 flow 135---48 physical data 17 properties llm19 table 17 gauges air 415m20652 THE PNEUMATIC HANDBOOK pressure 165, 176, 261~8,442---6 strain 299 grease 117 grinders 307---9 legislation 364 vibrations 368 grippers 485m7 guide vanes, fans 588,589 Hagen-Poiseuille's law 138 Hand Arm Vibration Syndrome 363 health and safety, legislation 106, 285 heat see also energy balance 157 recovery 155---61 release 156 waste 133 heat exchangers 121~8,208 helical screw blower 583 hoists 353---4 hollow fibre filters 195 hopcalites, CO removal 187~8 hub ratio, fans 589 hydraulic motors 341 hydrocarbons, filtration 177 ice formation 172 ideal compression, definition 8 impact wrenches 312 impellers see fans impregnation, vacuum 576 impulse tools 313~14 inclined plane actuators 484 industrial tools 307~17 injection cooling 123 inlet temperature, definition 9 installation air springs 384---5 compressed air distributors 222 compressors 65---74 cylinders 509~10 fans 588 O-ring seals 521 relief valves 257m9 intercooling 8, 123 interstage cooling 121 ion plating 576 isentropic compression 24 isentropic exponent 22 isentropic index 55 isentropic process, definition 8 isothermal compression 23---4 isothermal efficiency, definition 8 isothermal process, definition 8 leakage Roots blower 582 vacuum pumps 563,566 legislation breakers 361--2 breathing air 183 discharge 229 fans 585, 587, 588 filtration 180---1 grinders 364 lubrication 229 noise 77m8, 85, 359, 36 lm2 safety 106, 285 liquid column pressure gauges 261~2 logarithmic mean temperature difference (LMTD) 124 logic circuits 546--50 long pipes, conductance 564 long-stroke cylinders 478 low vacuum, applications 576--80 lubricants bio-degradable 230 safety 120 synthetic 119~20 lubrication bearing slides 510 compressors 113~20 cylinders 494--5 detergent 229 draining 229 drip oilers 115~16 filter regulator and lubricator 259 flood 115 force feed 115, 118 grease 117 guide table 116 legislation 229 maintenance 287, 292 mist 513, 515 oil cooler 119 oil separator 119 reciprocating compressors 113, 114---17 regulation 229 rotary compressors 118ml 9 seals 513m15, 523 siphon wick oilers 117 splash 114---15 synthetic lubricants 119~20 systems 114 tools 269~78, 345, 348, 349EDITORIAL INDEX 653 trunnions 510 turbocompressors 119 vane compressors 117ml 8 Mach number 144 magnetic cylinders 479 maintenance 287--95 accessories 290--2 air cylinders 289--90 air tools 287m98 appliances 289 compressors 292~5 filters 290 lubrication 287, 292 pipes 291 records 288 responsibility 288 safety 28 l, 283--4 seals 290 system 287--96 manometers 267, 442, 445,446 marine applications corrosion 400 drill string compensator 400---1 exhaust hose 402 general use 399---.-400 prospecting 400 regulation 399 tools 401~3 mass spectrometers 267 McLeod pressure gauge 267 measurement air flow alternatives 445--6 calculation 442--3,445 delivery side 439---40 electronic pickup 450 equipment 442 high pressure nozzles 444---5 instruments 442 intake 440 magnetic pickup 450 mass flow 453 methods 437 nozzles 437--9, 444 orifice 437, 444 perforated plate 439--40 pipelines 440 pitot tube 446 pressure effects 453 receiver 439, 441 standards 441~2 temperature effects 453 tests 443 venturi tube and nozzle 444 mercury-diffusion pumps 571 meters air flow combination 449 cone 447 coriolis effect 446, 452m3 float 447 hot wire anemometer 446 multi-blade 449m51 pelton wheel 450--1 spring-loaded 448 turbine 446, 449 variable area 446, 447--9 vortex shedding 446, 45 lm2 mining equipment 33 lm9 mobile compressors canopy 76 capacity 77 chassis 76 cooling 76, 128 features 76 intake 76 pressure 77 safety 282--3 van mounted 80 moisture load control 213 measurement 212--15 relative humidity 9 separators 161 Mono pump 389 motors see also air motors electric 341 . hydraulic 341 variable speed 98~9 mufflers 319 multi-action actuators 556 multistage compressor, definition 7 multistage cooling 121 nitrogen oxide filtration 189 nitrous oxide filtration 189 noise breakers 360 casings 88---9 compressor 360 delivery passages 89 fans 587--8,590--2 gear box 90 general 90654 THE PNEUMATIC HANDBOOK inlet ducts 87--8 intake 86---7 legislation 77--8, 85, 359, 36 lm2 levels 359 measurement 363 mobile 77, 79--80 motors 89--90 mountings 89 mufflers 361,402 packaged units 90 pneumatic equipment 359m70 radial flow fans 590--2 reduction 85--90, 360---1 sources 86, 361 standards 86, 362 tests 361--2 tools 359--70 valves 88, 89 nozzles equations 144--8 high pressure 444---5 selection 440---1 sizing 438, 445 Nusselt number 126---7 nutrunners 310 O-rings combinations 523 dynamic conditions 520 groove sizes 519 installation 521 non-circular 522 non-toroidal 522---3 oil, filtration 174---6, 177, 186 oil cooler 119 oil separator 119 oil-diffusion pumps 571 orifices 144---8 packaged compressors, definition 8, 71~3 packaging, vacuum 576 paint sprayers air consumption 37 l, 374 characteristics 372 cold 375 electrostatic spraying 374 high pressure 374, 375 hot 375 low pressure 371,375 paint feed 376 safety 374 Panhandle formula 138 paving breakers 319--22, 324, 360, 361--2 perforated plate 439---40 pipes ABS copolymer 239---40 aluminium tube 242--3, 251 bleeding 249 bundy tube 242 conductance 564 copper 240---1 fittings 239m51 ABS copolymer 241 American style 245 brass 247 compression 245--8 equivalent lengths table 141--2 nylon 244 polymide 247 pressure drop 140---3 push-in 247--8 Q Type 245 quick-release couplings 248--50 self-sealing 249--50 Universal 245 flexible hoses 143---4 flow calculations 135---48 friction losses 142, 143---4 hose couplings 245 hose whip 249, 251 long 564 maintenance 291 materials 239--51 nylon spring coils 244 nylon tubes 243---4 PVC hoses 245 roughness table 140 rubber hoses 245 screw fittings 143 standards 239 steel 239 terylene braided PVC hoses 245 thin-walled steel 241B2 Pirani pressure gauge 267 pistons labyrinth seal 34 materials 492 rods 34, 493---4 seals 525 skirt 34 velocity 532---4 pneumatic conveying tools air-activated 391 blow-tank 390 combination vacuum/pressure systems 390 cyclone 392EDITORIAL INDEX 655 feed pump 389 high pressure systems 390 hopper 388 low pressure systems 388--9 medium pressure systems 389 pipelines 387 power 392---4 pulse phase systems 390, 391 rotary feeder 388 separation 391--2 types 387 vacuum systems 387~8 venturi pick-up 388 pneumatic elevator 388 pneumatic equipment, noise 359~70 pneumatic springs 377--85 Pneurop tests 78, 84, 309, 367 Poiseuille's law 138 Poisson's law 22 pollution 229--38 see also noise polytropic compression 23, 24---5 polytropic index 55 polytropic process, definition 8 positive-displacement blowers 583 power fans 584 hydraulic 132 isentropic 151 output 132--3 pneumatic 132 Roots blower 582--3 power coefficient, fans 585 Prandtl number 126~7 pressure amplifier 550 atmospheric 441 critical 16, 17 drop, bends and fittings 140--3 fans 584 gauge pressure 267 inlet 56 partial 13, 21 pseudo-critical 16 ratio, definition 8 reduced 16 regulating valves 253~60 saturation 13, 14 sensors 99 testing 279 pressure coefficients, fans 585 pressure gauges Bourdon 262B3, 442, 443 calibration 443 construction 262---4 diaphragm 265---6, 442 electronic 264---5 isolator valves 266 liquid columns 261--2 manometers 267,442, 445,446 mass spectrometer 267 McLoed 267 Pirani 267 surge protection 263 thermionic 267 vacuum 266---7 pressure ratio, definition 8 pressure regulator, definition 8 PROFIBUS 557 propeller type fans 588--9 proximity sensors 455--62 pulsation damper, definition 9 pumps air blowers 581--93 air driven ejectors 573---4, 576---80 backing 566 condensation 570 conveying 389 diffusion 570--1 fluid jet 571B2 mono 389 oil-diffusion 571 reciprocating 565----6 rotary plunger vacuum 566 rotary vane vacuum 566 steam jet 572~3 vacuum 563~74 vapour booster 57 lm2 water 394---6 quarrying equipment 331~9 rack and pinion actuators 483--4 radial flow fans 590m2 radiators 155~9 ratio, stage pressure 56 Raynaud's Disease of Occupational Origin 363 reciprocating compressors 35, 122~3 clearance volume 56B7 configuration of 32 cooling 122--3 disadvantages 33 foundations for 68--70 industrial service 33 lubrication 113, 114--- 17656 THE PNEUMATIC HANDBOOK maintenance 293 multi-stage 32 oil-free 34 performance 55--7 trouble-shooting 294 volumetric efficiency 56 reciprocating pumps 565---6 refrigerated condensers 570 regenerative blowers 592--3 regenerative coolers 208 regulating valves 253~9 regulations s e e legislation relative clearance volume, definition 9 relative humidity, definition 9 resistance coefficient 142 Reynolds number 126---7, 136, 444 determination 137~8 road breakers 319~22, 324, 360, 36 lm2 robotics assembly 554 available modules 551~2 base rotate units 551,553 control systems 557 fieldbus systems 557--8 gantry units 554---5 grippers 552---3 linear units 551,553 multi-motion actuators 556 Pneubus 557 positioning unit 554 PROFIBUS 557 safety 559 semi-robotic devices 558---9 two-wire cable 557~8 wrist rotate units 552--3 rodless cylinders 478~81 Roots blowers 44, 47, 59---60, 388, 58 lm3 rotary actuators 481---4 rotary compressors compression cycle 36 control 94, 95--7 filtration 179 gearing 39 helical screw 35~7 industrial service 36 installation 72~3 lubrication 118ml 9 maintenance 295 manufacture 37 multi-pressure 95 oil system 40 oil-flooded 37---40 oil-free 37--40 performance 57---9 power 37, 59 principles of 37 rotor design 39---40 trouble-shooting 294 unloading 95---7 rotary plunger vacuum pumps 566 rotary tooth compressors 45--7 rotary vane vacuum pumps 566 safety checks 289 circuit design 544---6 commissioning 280 general guidelines 279m80 inspections 282 interlock 546 legislation 106, 285 maintenance 281,283--4, 289 mobile compressors 282--3 operation 281 paint sprayers 374 pressure limitations 535 publications 285--6 regulations 285 robotics 559 running 281 tools 284---5 valves 253---4 sanders 307--9 scalers 316, 317 screwdrivers 310---11 seals 513~25 classification 514 design principles 517 friction 378 housing 524---5 lubrication 513~15, 523 maintenance 290 materials 513, 515--16 O-rings 513, 517m23 permeability 515 pistons 525 square 523 standards 513, 518 U-rings 523----4 wiper 513, 524 sensors back pressure 456---7 ball roller 457~8 bleed 457--9 capacitive 460 cat's whisker 458EDITORIAL INDEX 657 conical jet 457 cylinder position 5 0 ( 0 2 fibre-optic 461 fluidic 459 inductive 460 magnetic 500 photoelectric 460---1 pneumatic amplifier 459 proximity fluidic 459 non-pneumatic 460---1 nozzles 456 principles 455 three jet types 456 universal 461 separator, definition 9 shell-and-tube coolers 123m5 shock absorbers 507---9 single-stage coolers 206 sliding compressor vane efficiency 59 lubrication 117--18 oil-flooded 43 oil-free 43 performance 57~8, 59 principles of 42~3 rings 43--4 rotational frequency 43 types 43 sliding doors 503 sound attenuation 18, 19 power 362 velocity 19, 144 water vapour 19 specific capacity, definition 9 specific energy, definition 9 specific speed, fan performance 586--7 speed control 432~5 stage pressure ratio, definition 9 standard atmosphere, properties 18 standards compressors 83 cylinders 489 discharge 230 noise 86, 362 pipes 239 tools 364 valves 463 vibration 364 steam ejector pumps 572~3 sterilization filters 193m200 Stoper drills 332---3 straight-radial blades, fans 590---2 stress waves 328u30 submergence 395----6 suction cups 576---80 surge, tank 435 surge limit, definition 9 symbols 467, 527 system maintenance 287---96 tachometer 442 temperature absolute, definition 9 ambient, definition 9 critical 16, 17 discharge, definition 9 inlet 56 definition 9 pseudo-critical 16 reduced 16 sensors 99 total, definition 9 thermionic pressure gauge 267 thermodynamics 2 l m5 laws 22---3 tools air consumption 299, 304---5, 325 air lift pumps 394----6 air motor hoists 353---4 air springs 377m85 Bendix drive 356~7 blenders 396--7 breakers 319~22, 324, 360, 361~2 chipping hammers 315~17, 368 classification 299u306 table 300---3 contractors 319~30 control 335,354, 381 conveying 387~98 cylinder hoists 353 down-the-hole 336~7 drills 312, 322---4, 327~30, 331--9, 401, 535 dust collectors 339 efficiency 306 energy output 299 exhaust hose 402 flexible bellows 380----4 grinders 307~9, 364, 368 grinding theory 309 health 363 hoists 353--4 impact wrenches 312 impulse tools 313~14658 THE PNEUMATIC HANDBOOK industrial 307ml 7 lubrication 269--78, 345, 348, 349 mining 331~9 mixers 396---7 motors 341~58 mufflers 319 noise 359~70 nutrunners 310 paint sprayers 371~6 percussive 299, 315 air consumption 325 performance 324--6 performance 299~306 quarry 33 lm9 reamers 312 rifle bar 327m8 rotary 299, 307 rotation systems 326--7 safety 307 sanders 307~9 scalers 316, 317 screwdrivers 310--11 standards 364 starters 355~8 electric 357, 358 stoper drills 332~3 tappers 312 testing 361~2, 366, 4"48 torque 299, 327~8 underwater 401~3 vibration 363m9 winches 353, 354--5 wrenches 3 1 2 ~ 13, 314 ton" (unit) 563, 575 total temperature, definition 9 transducer air/electronic 420 displacement-pressure 416 Turbo blowers 388 turbocompressors control 61 efficiency curves 50 lubrication 119 performance 60~2 principles of 47 shaft speeds 50 types 47 working range 50 turoidal seals s e e O-rings twin rotor vacuum pumps 566 two level system characteristics 150 efficiency 149, 151 experiments 152m3 principles of 149 theory 150---2 two-stage coolers 206 two-stage filters 174 two-staging fans 589 U-rings 253--4 underwater tools 40 lm3 vacuum augmenters 572m3 coating 576 definition 9 pressure 563 pumps capacity 565m7 definition 9 design and selection 564---70 types and characteristics 568 units 563 techniques 575~80 vacuum packaging 576 vacuum pressure gauge 266---7 valves air-actuated 469~70 automation 430 back pressure regulator 253 ball 428,429~30 characteristics 529~32 check 91, 431~2 Coanda effect 547 compressors, reciprocating 34---5 configurations 463----6 construction 463m73 control 423~36, 468,470, 500 diaphragm relief 254---5 directional control 423~5 disc 428 discharge 117 drain 229~37 elastomer bonded spools 426 excess flow 250 exhaust 432 flow control 432 flow curves 531 flow data 529~32 four-way 538 gauge isolator 266 glandless 471 hot gas by-pass 207 impulse solenoid 472~3 inflation 381EDITORIAL INDEX 659 interlock 427 isolating 71,222 manifold mountings 466 material 425 miniature 466 mounting 431 moving part logic 547 multi-bank 426 needle 100, 436, 506 noise 88, 89 non-return 431--2 O-rings 426, 429 operation 467--73 pedal 467 pilot 255,543 pneumatic 423 poppet 254---5,259,428 port tappings 463 position 542--3 pressure 91, 96, 253, 254---9, 448,535 quick exhaust 432 quick release 540 reed 501--2 regulating 253--9 relief 257--9 rotary 426---7 safety 71, 91,253---4, 259 safety lock-up 254 seals 425---6, 513 seated 423,428--9 semi-rotary 427 sequence 254 shut-off 429 shuttle 431 sizes 463 sliding spool 423,425--6 solenoid 470----3 pilot 471--2 poppet 470 speed control 432---3 spool 350 standard symbols 430---1,467 standards 463 suction 94 three-position 469 three-way 537, 539 time delay 436 unloader 97 variable orifice 423 vane actuators 481--2 vane compressors 117--18 vapour booster pumps 571--2 vapour pressure 12 variable speed motors 98---9 venturi ejector 580 venturi tube 444 vibration grinders 368 isolation 378,383,384---5 reduction 377 Vibration Syndrome 363 Vibration White Fingers 363 volume coefficients, fans 584 volumetric efficiency 8,582 water condensation 229 consumption 101 cooling 122--3, 411 flushing 323, 334, 338--9, 403 heating 158 jet pumps 572m3 losses 160 oil/water separators 233--7 pumping 394---6 sources 155 vapour 14, 171--2 water cooling, condensers 570 water pressure, saturation 14 water-cooled compressors 68 Weymouth formula 138 winches 353,354---5 work of depression, vacuum pumps 564 wrenches 312-- 13, 314
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