Algas SDI Blendaire B1700 Operation & Maintenance Manual Download Page 12

Page: 12 / 14

Algas-SDI Operations and Maintenance Manual – P/N – 54702

6-13

Maintenance

CAUTION

Turn off the LPG gas inlet valve to the mixer before performing any
maintenance or repairs.

CAUTION

Before performing any work on the blender, follow all safety
procedures for LPG gas; make sure there are no open flames or
electrical sparks, and wear appropriate clothing. Turn off all
electrical power to the mixer.

Summary of Contents for Blendaire B1700

Page 1: ...intenance Manual Innovative liquid vaporizing and gas mixing solutions 151 South Michigan Street Seattle Washington USA 98108 Tel 206 789 5410 Fax 206 789 5414 Web www algas sdi com FILE MANUAL PN 54702 BLENDAIREII REV 11 30 16 doc ...

Page 2: ...contains manual shutoff valve check valve flow conditioner flow meter pressure transmitter and a flow control valve A required air regulator installed upstream sets the pressure into flow control valve The LPG vapor inlet piping contains manual shutoff valve check valve flow conditioner flow meter pressure transmitter and a safety shutoff valve A required LPG vapor regulator upstream sets the mixe...

Page 3: ...ntroduction 1 2 Algas SDI Operations and Maintenance Manual P N 54702 Figure 1 General Layout Figure 2 Component Diagram Compressed Air Inlet LPG Vapor Inlet SNG Outlet 10 6 1 3 7 4 5 8 11 2 6 1 7 5 4 9 ...

Page 4: ...sure Transmitter relays information to the remote control box to prevent low LPG pressure from forcing lean mixtures 7 TEMPERATURE TRANSMITTER The Temperature Transmitter determines if LPG gas vapor is at safe operating temperature The system will shut down if LPG vapor temperature is close to dewpoint The chart at the end of this section has the dewpoints for propane N butane and Isobutane 8 VAPO...

Page 5: ...the system at any time Heat tracing may be required depending upon location LPG content and pressure Mount each BLENDAIRE unit on a concrete pad strong enough to support its weight See equipment drawing Every unit is equipped with Auto Ratio Adjust however a gas quality measuring device suitable for the specific operating conditions is required for activation The total response time including samp...

Page 6: ...d be provided immediately upstream of the first stage regulator 3 Heat tracing must be placed over the vapor supply pipes if the ambient temperature falls within 10 F of the dewpoint of the LPG gas Electric heat tracing is preferred with an appropriate controller All heat tracing must be suitable for the class of hazardous location in which it is to be installed Always consult with the appropriate...

Page 7: ... in mind Various configurations allow inlets and outlet on same side of equipment on the opposite side of the equipment and 90 degrees apart from each other Figure 3 Inlets and Outlet on Same Side Figure 4 Inlets and Outlet on Opposite Sides Compressed Air Inlet LPG Vapor Inlet SNG Outlet Compressed Air Inlet LPG Vapor Inlet SNG Outlet ...

Page 8: ...Installation 3 8 Algas SDI Operations and Maintenance Manual P N 54702 Figure 5 Inlets and Outlet 90 Degrees Apart Compressed Air Inlet LPG Vapor Inlet SNG Outlet ...

Page 9: ...n in the gaseous state at all times The regulators will not operate properly if there is ANY liquid in the system Perform all necessary procedures to eliminate liquid in the system 5 Make adjustments to LPG and AIR regulators as required under flowing conditions Initial regulator settings can be found in the QA and Data Sheets BLENDAIRE MIXING RATIO ADJUSTMENT PROCEDURE Ratio adjustment is conduct...

Page 10: ...ding values To restart the blender after a safety shutdown determine and eliminate the cause of failure and begin the start procedure over 8 During initial startup of mixer into an uncharged line flow rates can be very high Alarms may occur during this charging phase until pressure in the line starts to equal the pressure outlet set point Also during this initial charging nuisance tripping of exce...

Page 11: ...essure upstream of the Air Flow Control Valve 2 Regulated LPG vapor pressure upstream of the Vapor Safety Shutoff Valve 3 Air and LPG Vapor flow rates 4 Calculated gas air mix ratio 5 Wobbe Index or specific gravity from Gas Quality Feedback Device SHUTTING DOWN THE BLENDER 1 Push the STOP button on the HMI panel or local control panel 2 Close the outlet valve 3 If the unit is to be serviced perfo...

Page 12: ...PG gas inlet valve to the mixer before performing any maintenance or repairs CAUTION Before performing any work on the blender follow all safety procedures for LPG gas make sure there are no open flames or electrical sparks and wear appropriate clothing Turn off all electrical power to the mixer ...

Page 13: ...Replace main valve seal Regulators Inspect and clean lines Clean upper body Clean and re build Safety Valve Perform visual inspection verify operation Rebuild actuator Replace main valve seal Pressure Transmitters Re calibrate verify operation Re calibrate verify operation replace as necessary PLC Controller Circuits Perform visual inspection verify operation PLC Controller Safeties Check Perform ...

Page 14: ...r shuts down on low gas pressure First stage gas regulator is set too low or is malfunctioning Increase gas pressure setting or check repair replace first stage gas regulator The pump pressure to the vaporizer is low or pump isn t functioning Check pump operation and incoming lines Vaporizer outlet valve is closed Open the valve Gas inlet shut off valve is closed Open the valve Vaporizer shuts dow...

Search results

Summary of Contents for Blendaire B1700

Reviews:

Related manuals for Blendaire B1700

Brands by name

Popular brands

Algas SDI Blendaire B1700, Operation & Maintenance Manual

Search results

Summary of Contents for Blendaire B1700

Reviews:

Related manuals for Blendaire B1700

Brands by name

Popular brands