Post on 16-Feb-2016
description
Elevators & escalators
April 19th, 2011
Elevators
• Types:1. Pneumatic Vacuum Elevators (PVE)2. Traction elevators3. Hydraulic elevators4. Climbing elevator
• Usage:– Carry people – Fright goods and tools– Left vehicles and aircrafts
Pneumatic Vacuum Elevators (PVE)
• Maximum height = 11 m• Maximum weight = 240 kg• 2 – 3 people• Residential use only.
Traction elevators
• Advantages:1. Fast2. Quiet3. Smooth ride4. High rise application
• Disadvantages:1. machine room required2. Higher cost3. Support structure
Hydraulic elevators• Advantages:
1. High loads2. No machine room3. Dimension optimized4. Low cost
• Disadvantages:1. Slow and noisy2. Hot oil odor3. Poor riding quality4. Environmentally
unsafe
Escalators