Shaft Alignment

Types of Shaft Alignment:

•  Laser Alignment
•  Dial Gauge Alignment
•  Scale Alignment

How alignment is carried out

Shims are placed in the output shaft after checking axial float. The shaft is firmly fixed. Intermediate shaft is then assembled. Backlash is checked and kept at 0.3 mm. It is adjusted by adding or removing shims. Finally the same is done for the impact shaft as well.

 

5 Leak Paths in a Mechanical Seal

5 Leak Paths in a Mechanical Seal

4 O-Rings + 1 Sealing between faces

•       Stuffing Box and Gland

•       Gland and Mating Ring

•       Rotating Part(Seal Ring) & Sleeve

•       Between Faces

•       Shaft & Sleeve

Seal Selection Parameters

The Following are the Seal Selection Parameters:

•       Media

•       Specific Gravity

–      Balanced Seal > 10 Kg

–      Unbalanced Seal < 10 Kg

•       Viscosity at Pumping Temp

•       Boiling Point and Freezing Point

•       State of Media

–      Clear / Dirty

–      Abrassive or Non Abbrasive

–      % of slurry (2-3%: Single Spring; Upto 10%: Bellows, >10%: back to back or single seal with plan 32)

–      Size of particles

–      Toxicity

–      Hazardous

–      Crystallizing (NaOH, CO3, Sea Water)

–      Any other chemical property

Classification of Compressors

TYPICAL POWER SAVINGS THROUGH PRESSURE REDUCTION

TYPICAL SPECIFIC POWER CONSUMPTION OF RECIPROCATING COMPRESSORS (BASED ON MOTOR INPUT)

TYPICAL COOLING WATER REQUIREMENTS FOR COMPRESSORS

HOW THE POWER CONSUMPTION OF A TYPICAL RECIPROCATING COMPRESSOR VARIES AT VARIOUS LOADS

GENERAL SELECTION CRITERIA FOR COMPRESSORS

How a Scroll Compressor looks like

Sankey Diagram for Compressed Air System

EFFECT OF INTAKE AIR TEMPERATURE ON POWER CONSUMPTION IN A COMPRESSOR

How to differentiate between Fans, Blowers & Compressors

EFFECT OF ALTITUDE ON VOLUMETRIC EFFICIENCY OF A COMPRESSOR

EFFECT OF INTAKE AIR TEMPERATURE ON POWER CONSUMPTION IN A COMPRESSOR

EFFECT OF PRESSURE DROP ACROSS AIR INLET FILTER ON POWER CONSUMPTION IN A COMPRESSOR

How an Inlet Guide Vanes looks like?

EFFECT OF INTER-STAGE COOLING ON SPECIFIC POWER CONSUMPTION OF A RECIPROCATING COMPRESSOR

Compressor Chart

Jet Engine Parts Diagram - Turbojet, Turboprop, Turbofan