風力發電預計將持續快速成長。隨著成本的下降，陸域風電變得越來越受歡迎。近岸的離岸風電獲得大量的投資，因為渦輪機的尺寸可能非常大，並且可以產生更多的電力。而浮動式離岸風電是一種基於石油工業浮動平台的新技術，有可能在更遠的海上建造更大的風電場。
風力發電密封系統解決方案
風力渦輪機的密封件需要提供低摩擦、長壽命、零洩漏和易於安裝的特性，其中關鍵要求是最大程度地延長維護間隔時間。特瑞堡密封系統有助於液壓系統的有效運行，我們的產品能夠承受陸域和海域設施的嚴酷考驗。密封件經過廠內設計和測試，可承受 250 bar / 3,625 psi 壓力和低至 -40 °C / -40 °F 的溫度下的連續短行程運行。
Large diameter rotary seals are needed to effectively seal the main bearing and yaw bearing.
- A split TRJ radial oil seal maintains effective lubrication of the bearing and is supplied with pins for onsite installation.
- The unique, spliced V-Ring® RME is suitable for large applications and is joined onsite after installation. Typically needed in four to six meter diameters, this seal can be manufactured in even larger sizes. An optional metal clamping band can be supplied to support positioning of the V-Ring® on the shaft.Typically, a standard hydraulic cylinder, the lock cylinder locks the rotor and blades in position for maintenance operations. Seals commonly used are:
- Zurcon® U-Cup RU9 rod seal
- Zurcon® Wynseal piston seal
- Orkot® Slydring® prevents metal to metal contact in the cylinder
- Zurcon® Scraper DA22 protects the cylinder by preventing ingress of dirt and debris
Pitch control systems consist of a series of cylinders and control valves, which pitch the rotor to ensure the optimal angle against the wind. These systems can operate as electrical or hydraulic systems. Electric systems require a stable power grid and battery backup.
In hydraulic pitch control systems, quality, reliability and service life are critical. Pitch cylinders operate at a high frequency using short strokes. A typical sealing solution consists of:
- Zurcon® U-Cup RU9 rod seal
- Zurcon® Wynseal piston seal
- Orkot® Slydring® prevents metal to metal contact in the cylinder
- Zurcon® Scraper DA22 protects the cylinder by preventing ingress of dirt and debris
Hydraulic brakes perform different functions on wind turbines. The main brake, often featuring a hydraulic disc brake, assists in bring the rotors to a standstill. The yaw or azimuth brake keeps the nacelle positioned against the wind. These hydraulic powered brakes are equipped with plunger cylinders to hold the tower in position.
Hydraulic brake systems typically use Zurcon® U-Cup RU9. Larger systems incorporate Orkot® Slydring® wear rings and a metal scrapers to protect hardware.
Accumulators, typically piston accumulators, are an important safety feature in wind turbines. They help turn the blade away from the wind in an emergency and also maintain pressure in hydraulic systems when the pump is off, reducing power consumption.
Sealing system for typical accumulator:
Blade bearings sit between the hub and the three wing blades. They are exposed to the environment and offshore and desert climates can cause premature seal failure. Our experts support with seal specification to match the operating environment. Typically used seals include:
- V-Ring® rotary shaft seals
- Large diameter X-Seal to accommodate extreme conditions
- Custom molded X or double V designs provide increased flexibility against eccentricity
At the sandwich mount, between the top of the tower and the turbine, anti-fretting pads facilitate smooth turning of the rotors. Orkot® pads prevent metal-to-metal contact and reduce wear and damage to the surfaces.
Orkot® bearings in floating wind mooring systems protect against metal-to-metal contact and prevent wear on chain stoppers and line handling equipment. Our robust Orkot® material has low friction properties and is virtually maintenance free.
Large diameter rotary seals are needed to effectively seal the main bearing and yaw bearing.
- A split TRJ radial oil seal maintains effective lubrication of the bearing and is supplied with pins for onsite installation.
- The unique, spliced V-Ring® RME is suitable for large applications and is joined onsite after installation. Typically needed in four to six meter diameters, this seal can be manufactured in even larger sizes. An optional metal clamping band can be supplied to support positioning of the V-Ring® on the shaft.