Guindastes hidroeléctricos de topo de barragem 

Introdução ao produto

A grua hidroelétrica no topo da barragem é um tipo de guindaste de pórtico, concebido para operações de elevação, deslocação e revisão de sistemas de comportas e barreiras de centrais hidroelétricas, de modo a satisfazer as necessidades de operação e manutenção de ciclo completo de equipamentos hidráulicos. O guindaste hidroelétrico divide-se em dois tipos: unidirecional e bidirecional.

O pórtico unidirecional adota um mecanismo fixo de abertura e fecho em design integrado, com deslocamento direcional ao longo do eixo da barragem, com uma faixa de operação linear de via única, adequado para a operação de comportas de fila única; a configuração do pórtico bidirecional integra um sistema de carro de elevação em arranjo ortogonal, podendo realizar elevação em múltiplas posições a montante e a jusante, cobrindo a operação de comportas de fila dupla e barragens, com capacidade de operação inter-fila, a flexibilidade operacional é melhor.

Estrutura

The hydro power crane mainly comprises gantry structure, traveling mechanism, lifting trolley, hoisting mechanism, electrical control system, and other components. The following are the functional characteristics of each component:

• High stability gantry structure: box beam/truss design, equipped with wind and anti-shaking devices, spanning 30-50m, suitable for dam working platform layout.
• Precise traveling system: dual-track motor drive, equipped with buffer braking device, traveling speed of 15-30m/min, positioning accuracy of ± 10mm.
• Large tonnage lifting system: integrated main/auxiliary lifting mechanism, wire rope winch system, rated lifting capacity of 50-500t, support for synchronous control of double lifting points.
• Intelligent speed control lifting mechanism: frequency conversion motor drive, with overload protection function, speed adjustable (2-14m/min), to meet the needs of conventional and fast gates
• High protection electrical control: PLC control system, IP55 protection level, support for remote monitoring, optional laser positioning, and load monitoring module.

(Structural design in line with GB/T14405 standards, to adapt to high humidity, strong wind）

Hydro Power Crane Specifications

Caraterísticas

• High-strength main beam structure: steel plate/box beam design, equipped with electric drive and gear reduction winch mechanism, stable and reliable structure.
• Intelligent operation system: full motor-driven operation mechanism with frame-type closed operation room, realizing precise control and operation safety.
• Multiple safety protection: the door legs are equipped with a running buffer and a windproof rail clamping device, which can effectively cope with unexpected conditions and bad weather.
• High-efficiency lifting system: Supporting dual modes of vertical lifting of gate groove and rotation of gate hinge, the large-span gate adopts synchronized control of dual lifting points (synchronization accuracy ≤±10mm).
• Hydrodynamic adaptive design: with a hydrodynamic compensation function and load-water pressure linkage control, the gate can be opened and closed stably under the impact of water flow.
• Large lifting capacity: lifting capacity of 50-500t, conventional speed ≤ 4m/min, fast gate 10-14m/min, working level A3-A5, wind resistance level up to 12 standard.

Aplicação

• Gate System Operation and Maintenance: Completing the installation, overhaul, and replacement of various types of gates, such as spillway sluice, water intake sluice, and so on.
• Barrage maintenance: to realize the lifting, shifting, and cleaning operations of the barrage;
• Emergency rescue: quickly open and close gates to regulate water level during flood season.
• Equipment overhauling: to cooperate with the lifting and maintenance of turbines, valves, and other underwater equipment;
• Project expansion: support the installation and debugging of new gates for dam reconstruction and expansion.

Hydro Power Cranes Manufacturer