Top Banner
INDIAN RAILWAY AIR BRAKE SYSTEM Syed Khaja Hussain Instructor/Rn/DTT!/"TL By Syed Khaja Hussain B#Tech#$ M#B#A # Instructor/Runnin DTT!/"TL/S!R
27

8 IRAB Brake System

Nov 01, 2015

Download

Documents

irab brake system
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript

IRAB

INDIAN RAILWAY AIR BRAKE SYSTEMSyed Khaja Hussain Instructor/Rng/DTTC/GTLBy Syed Khaja Hussain B.Tech., M.B.A.Instructor/RunningDTTC/GTL/SCRBrake SystemTypes of Brake System28 LV128LAV1KNORRIRABCCBFormation BrakeLoco BrakeAIRVacuumFormation BrakeLoco BrakeAIRVacuumFormation BrakeLoco BrakeAIRBoth Air & Vacuum(Dual)Formation BrakeLoco BrakeAIRAIRSyed Khaja Hussain Instructor/Rng/DTTC/GTLBrake SystemTypes of Brake System in Locomotives28 LV128LAV1KNORRIRABCCBSA9 QUICK REALASENON MODIFIEDMODIFIED

28 VBPROPOTIONAL VALVEC3W DISTRIBUTER VALVEFOOT PEDALYDM4WDS6WDS4BZDM3WDM2AWDP1WDG3AWDM3AWDM3DWDG4WDP4Syed Khaja Hussain Instructor/Rng/DTTC/GTL VALVES USED & THEIR FUNCTIONSLDESCRIPTION PURPOSE1A9. Automatic ValveBrake application for Loco as well as formations2SA 9 Ind. Brake Valve Brake Application for Loco alone 3MU 2BM.U. Operation.4F 1 SelectorM. U. Operation5 AddlC2ValveFeeding B. P. Pressure to formation624 A. Double Check This will allow only one Valve operation at a time.7C3W. Distributor ValveProportionate Brake application during A9 application. 8C2. Relay Valve ForLocomotiveBrake9Pressure SwitchLocowillbebroughttoidleduringA9emergencyapplication10D1. Emergency ValveForEmergencybrakeapplicationSyed Khaja Hussain Instructor/Rng/DTTC/GTL4 VALVES USED & THEIR FUNCTIONSLDESCRIPTION PURPOSE11D1. Pilot air valveTo release Loco brake 12Pressure Limiting ValvePilot air to C 2. Relay is Limiting to 1.8 kg / Cm2 13M. R. Safety Valve (Main Reservoir)When M. R. Pressure goes beyond 10.5 kg This Valve will function 14Duplex Check Valve Set at 5 kg / Cm 2It will not allow MR equalising pipe Air to return back to MR 15F2/C2NFeed ValveTo maintain Feed pipe Pr at 6 kg / Cm 2Syed Khaja Hussain Instructor/Rng/DTTC/GTL5

C2 RELAY VALVE

MU-2B valve

F-1 Selector Valve

SA-9 Ind brake valveA9-Automatic Brake Valve24 A. Double Check Syed Khaja Hussain Instructor/Rng/DTTC/GTL

D-1 Emergency Brake Valve-

C2 RELAY VALVE

Syed Khaja Hussain Instructor/Rng/DTTC/GTLLOCO BRAKE CYLINDERC3W DISTRIBUTOR VALVE

Syed Khaja Hussain Instructor/Rng/DTTC/GTL

AIR FLOW INDICATOR WHITE NEEDLE (REFERENCE)RED NEEDLE (REGESTER)BP (GREEN) PIPE FP (WHITE) PIPEAIR FLOW MEASURING VALVE

Syed Khaja Hussain Instructor/Rng/DTTC/GTLSA9 CUT OUTCOCK IN CONTROL STANDA9 CUT OUT COCK IN CONTROL STANDMR SAFETY VALVE

PRESSURE SWITCHF2 FEED VALVE

Application by SA-9LEADSA-9 Release(Non-Working Control Stand)3020BRAKE SYSTEM COC(MR-2 COC)SA9 COCSA-9 (Working Control Stand)3020220MU2BDCV231C-2 RELAY VALVE Bogie Isolation COC-2Bogie Isolation COC-1Brake CylinderBC Gauge

MR-23.5 KG/CM2 3.5 KG/CM2 3.5 KG/CM2 Loco Brake Application By SA-9SA9 COCDCVTRAILBrake CylinderM R 2 8 to 10 KG/CM2 Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLAPPLY-SA9From C3W DV

Releasing SA-9LEAD30203020220MU2BDCV231C-2 Brake Cylinder

MR-20 KG/CM2 0 KG/CM2 0 KG/CM2 M R 2SA-9 (Working Control Stand)SA-9 (Non-Working Control Stand)DCVSA9 COCSA9 COCBC GaugeBogie Isolation COC-2Bogie Isolation COC-1BRAKE SYSTEM COC (MR-2 COC)

Brake CylinderDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLExhaust PortExh -PortFrom C3W DVTRAIL11A-9 kept in Release LEADA-9 Release (Non-Working Control Stand) 305BRAKE SYSTEM COC(MR-2 COC)A9 COC OpenA-9 (Working Control Stand)305313MU2B231Addl. C-2 RELAY VALVE BP Gauge5 KG/CM2 5 KG/CM2 5 KG/CM2 Brake Pipe Charging in IRABA9 COCCloseTRAILM R 2 8 to 10 KG/CM2 BP PIPE LINE MR2Air Flow Measuring ValveAirflowIndicatorChoke 5.5 MMWhen SP1/SP2 Pressed --- Quick Charging of BP Pressure takes placeR619.5 MMRun/Rel.Magnet ValveExExDrops out 2.8 Kg/cm2Picks up at 4.0 Kg/cm211P C SDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLExhaut PortVCD Magnet ValveVCD COC OPEN3/4 OR 1 BP COCOpenPCS COC OpenP 2Closes below 4.4 Kg/cm2Opens above 4.7 Kg/cm2P 1Closes below 4.5 Kg/cm2Opens above 4.8 Kg/cm2EXA-9 kept in APPLICATION LEADA-9 (Non-Working Control Stand)305BRAKE SYSTEM COC(MR-2 COC)A9 COC OpenA-9 (Working Control Stand)305313MU2B231Addl. C-2 RELAY VALVE BP Gauge5 KG/CM2 GRADUATED APPLICATION in IRABA9 COCCloseTRAILM R 2 8 to 10 KG/CM2 BP PIPE LINE MR2Airflow Measuring ValveAirflowIndicatorChoke 5.5 MMR6Exhaust PortEx11EXDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLEXVCD COC OPENVCD Magnet Valve3/4 OR 1 BP COCOpen19.5 MMRun/Rel.Magnet ValveDrops out 2.8 Kg/cm2Picks up at 4.0 Kg/cm2P C SPCS COC OpenP 2Closes below 4.4 Kg/cm2Opens above 4.7 Kg/cm2P 1Closes below 4.5 Kg/cm2Opens above 4.8 Kg/cm2

Conjunction Loco Brakes ApplicationDCV231C-2 Bogie Isolation Coc-2Bogie Isolation Coc-1Brake Cylinder

MR-21.8 KG/CM2 1.8 KG/CM2 From SA-9MR-2BP Destroy1.8 Kg/CM2BKIVF-1 Selector MR-2C-3 W DVProp by BP dropIsolation Cock OpenQRVMR-2BCDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTL416MR -2 BP Pipe Line ConnectionLimiting ValveIsolation HandleFoot Pedal Not PressedEXHFrom C3W DVReleasing of Conjunction loco brakes( By BP charging)DCVFrom SA-9MR-2BP 5 Kg / cm2Limiting ValveBKIVF-1 SelectorMR-2C-3W DVDCV2MR-2

31C2 Relay ValveBogie Isolation Coc-2Bogie IsolationCoc-1Brake CylinderMR-0 KG/CM2 0 KG/CM2 Prop. release by BPBCIsolating handleQRVMR-2

Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLBP Pipe Line ConnectionIsolation Cock OpenEXHEXH PortMR -2 1.8 Kg/Cm2416EXH PortBrake CylinderFoot Pedal Not PressedReleasing of Conjunction Loco Brakes( by Foot Pedal)MR-2Limiting ValveBKIVF-1 SelectorMR-2C-3W DVDCVFrom SA-9DCV2MR-2

231C-2 Relay Valve Bogie Isolation Coc-2Bogie Isolation Coc-1Brake CylinderMR0 KG/CM2 0 KG/CM2 By PVEFIsolating handleReleaserMR-2BC

MR -2 Isolation Cock OpenBP Pipe Line ConnectionWhen Foot Pedal PressedEXHEXH PortBrake CylinderDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLReleasing of Conjunction loco brakes( By QRV)DCVFrom SA-9MR-2Limiting ValveBKIVF-1 SelectorMR-2C-3W DVDCV2MR-2

31C2 Relay ValveBogie Isolation Coc-2Bogie IsolationCoc-1Brake CylinderMR-0 KG/CM2 0 KG/CM2 Prop. release by BPBCIsolating handleQRVMR-2

Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLBP Pipe Line ConnectionIsolation Cock OpenEXHEXH PortMR -2 1.8 Kg/Cm2416EXH PortBrake CylinderFoot Pedal Not PressedLoco Brake application in MU/Idle/Dead16430X

143014From C3W DVFrom C3W DVSA-9SA-9DCVDCVMU2B(Trail)MU2B (Lead)F-1 (Lead)F-1 (Trail)C-2C-2BC EQ123123MR2MR24MR2LEADING LOCOTRAILING LOCOWhen MR EQ Pipe & BC EQ Pipe are coupledM R 1M R 2M R 2M R 1MREQTo Brake SystemTo Brake SystemwDTTC GTLwDTTC GTL220EXHEXH1620Syed Khaja Hussain Instructor/Rng/DTTC/GTL18Loco Brake application in MU/Idle/Dead through A916430X

1430162014From C3W DVFrom C3W DVSA-9SA-9DCVDCVMU2B(Trail)MU2B (Lead)F-1 (Lead)F-1 (Trail)C-2C-2BC EQ123123MR2MR24MR2LEADING LOCOTRAILING LOCOWhen MR EQ Pipe & BC EQ Pipe are coupledM R 1M R 2M R 2M R 1MREQTo Brake SystemTo Brake SystemwDTTC GTLwDTTC GTL220B PMR2MR2EXHEXHSyed Khaja Hussain Instructor/Rng/DTTC/GTL19Loco Brake Application In Dead Loco When MR EQ & BC EQ Pipes are not coupled only B.P connected MR-1MR-216 4

C2 Relay Valve123DCVBKIVL V C3W DVBP ( Dead Loco )BP ( Live loco)MU2B (Lead)MR GaugeFrom SA9BCDead1. The BP pressure of Live loco is charged to dead loco, the same BP pressure goes to C3W DV Through Isolation COC of dead loco2. Further this pressure goes to MR-2through C3W distributor valve 3. Then from MR2 Air Pressure goes to port No.1 of C2 relay valve. 4. As such MR pressure ( 5 Kg/Cm2) is available at C-2 Relay Valve of dead loco. 5. When BP pressure reduces , C3W D.V. of dead loco get unbalanced and connect MR2 pressure via C3W to F1 Selector port no. 4 to 16 to D C V6. So, pilot air pressure from MR2 goes to port no. 2 of C-2 relay valve (1.8 Kg / Cm2) as per the setting of Limiting Valve. Where it operates C-2 relay valve for application.7. And MR2 pressure waiting at port No. 1 enters in brake cylinder to apply Loco brakes in dead loco. ( Max 1.8Kg/Cm2)Isolation COCF1 (Auto Lead) 1.8 Kg/CM2 EXH5 Kg/CM2MR25 Kg/CM2

NRVSyed Khaja Hussain Instructor/Rng/DTTC/GTL20MR Safety valveMain Reservoir 1Main Reservoir 2Check valveJ FilterJ FilterControl reservoir, auxiliaries etc. To Brake system Feed valve6 Kg/cm2Duplex check valve5 Kg/cm2To MR Equalizing pipeFEED PIPE ( 6 Kg/cm2)FEED PIPE CHARGINGMain Reservoir 1 Brake system COCD24BFeed Valve COCDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTL21 WORKING PRINCIPLE OF TWIN PIPE AIR BRAKE SYSTEMDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLPARTS OF TWIN PIPE SYSTEMQRVDust Collector FPIsolation COC FPFeed PipeControl Res. BrakePipeDistributor ValveDust Collector BPIsolation COC BPNRVEXBrake CylinderBrake CylinderAux. Res.Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLFP & AR Charged to 6kg/cm2BP & CR Charged to 5kg/cm2BC is ConnectedTo Exhaust BC in Released ConditionCHARGINGQRVDCICFPCR BPDVDCICNRVEXBCBCAux.Res.6 kg/cm2Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLBP is Reduced in Steps to Apply Brake & CR is DisconnectedAPPLICATIONAR is Connected to BC & BC Pressure Reaches 3.8kg/cm2 & Brakes are AppliedRECHARGEBP Recharged to 5kg/cm2CR is connected to BP & AR is disconnectedFrom BCBC connected To exaust BC pressure comes to zero & Brakes are releasedQRVDCICFPCR BPDVDCICNRVEXBCBCARDeveloped By Syed Khaja Hussain Instructor/Rng/DTTC/GTLQRVDCICFPCR BPDVDCICNRVEXBCBCARMANUAL RELEASEBC connected to exaust BC pressure comes to zero & brakes are releasedQrv is pulled & CR pressureComes to zero Developed By Syed Khaja Hussain Instructor/Rng/DTTC/GTLSyed Khaja Hussain Instructor/Rng/DTTC/GTLThank You