Fix Wheel Vertical Gate
A Fix Wheel Vertical Gate is a type of vertical lift gate commonly used in dams, canals, powerhouses, and intake structures to regulate or isolate water flow.
The gate consists of a rectangular steel leaf guided by fixed wheels that move along embedded tracks in the side grooves. The gate operates in a vertical direction and provides reliable sealing and smooth movement even under high water pressure.
Working Principle:
The gate leaf moves vertically between guide tracks embedded in the concrete structure. Fixed wheels (usually rubber or metal-tired) are mounted on the gate to reduce friction between the gate and the guide track, ensuring smooth lifting and lowering. The gate is operated by a hoisting system.
Main Components
- Gate Leaf: Main structural body that retains water pressure.
- Fixed Wheels: Rollers or wheels mounted on the gate for smooth vertical movement.
- Guide Tracks: Embedded steel channels that guide the gate movement.
- Seals: Rubber or neoprene seals provided on sides and bottom for watertight closure.
- Hoisting Arrangement: Hydraulic or electric hoist system for lifting and lowering the gate.
Advantages
- Simple and robust design with minimal moving parts.
- Low operating friction due to fixed wheels.
- Suitable for medium to high-head applications.
- Reliable sealing and long service life.
- Easy operation and maintenance.
Applications
- Dam spillways and intake structures
- Powerhouse draft tubes and penstocks
- Canal head regulators and control structures
- Pump house and outlet works
Design Considerations
- Hydrostatic load on the gate leaf
- Smooth and aligned operation of wheels within guide tracks
- Strength and rigidity of the gate structure
- Safety provisions for operation and maintenance
