風力

風力

Ultra high pressure at work during wind power installations

Installing turbines for wind power requires ultra high pressure for accurate bolt loads. Turbines are usually installed in remote areas: on mountain tops, in the countryside or out at sea where conditions can be tough. Hence the need for high-performance tools during installation and subsequent maintenance work. With 40 years of experience in producing ultra high pressure couplings and hoses, CEJN has always focused on safety, delivering quality of the highest order for a safe work environment and fast installation.

High performance and safety essential for wind turbine installation

Wind turbine installation is a complex task and, due to the size of the tower, a turbine needs to be erected on site. From the foundation upwards, the various sections of a wind turbine have to be bolted together using bolt tensioning or torque tool equipment. Safety is a high priority and it is extremely important that accurate bolt load is applied. The same safety and precision is needed when maintenance engineers make their regular bolt load checks.

Bolt tensioning and torque tools demand ultra high hydraulic power. As a leading ultra high pressure product supplier, CEJN can support these tools with appropriate products. As a safety-focused company, we can assure our customers that our safe, high-performance products can be relied on at all times. CEJN's ultra high pressure couplings and hoses keep down-time due to high-pressure leakages or broken couplings to a minimum.

Get more information on our ultra high pressure couplings and nipples


Simplify simultaneous connections with series 116 T-connection

Series 116 T-connection has been developed for bolt tensioners and other types of applications that need serial or simultaneous connection. The T-connection means that you can replace the standardized porting block solution with a single component and thereby minimize the risk of leakage. The T-connection is compact and, thanks to a modified seal, the valve in the nipple can handle dynamic load while disconnected without the risk of seal damage. This means that it is safe to have a disconnected nipple at the end of a serial connection and there is no need for extra components, such as plugged couplings.

Another major advantage is that less time and money need be spent on assembly – as all assembly work, including leak testing, is performed by CEJN – the T-connection is ready to use on delivery, straight out of the box. Fewer article numbers and a single supplier result in a simplified ordering procedure and handling of deliveries.

Continue reading on series 116 T-connections


 

Snap-check test point system refills wind power accumulators

Pitch, yaw and brake systems on wind turbines are powered by electric or hydraulic actuation. The turbines’ hydraulic systems use high-pressure, gas-charged hydraulic accumulators, which are typically of the bladder or piston type.

Both piston and bladder accumulators rely on elastomeric seals that have the tendency to wear, making the accumulators susceptible to leaking charge gas into the hydraulic fluid over time. Hence, they require routine inspection and maintenance for recharging and periodic seal replacement.

A CEJN customer sells ultra high pressure products to wind farms and supplies CEJN’s snap-check quick-connect pressure testing system for refilling accumulators during maintenance. The snap-check hose has a working pressure of up to 60 MPa (8,702 psi).

Get more technical information on the snap-check test point system