Schwell Energy Storage Technology (Beijing) Co., Ltd.

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High-pressure hydraulically controlled system with a piston accumulator for the inlet valve

Hydraulically Controlled System for a Wave-Compensated Dual-Piston Accumulator

For operations conducted on or beneath the water’s surface, wave‑compensation solutions are required, which can be categorized into active systems, passive systems, and hybrid combinations of both: Active wave compensation: employs secondary‑control hydraulic winches, variable‑frequency electric winches, or hydraulic cylinders. The latter can also be used for passive wave compensation or as part of a hybrid active–passive system. Constant‑tension devices and passive and/or active wave‑compensation systems are installed to counteract relative motion between vessels and fixed structures, such as wellheads or other offshore installations.

2024

Underwater ROV‑Assisted Rapid Intervention Energy Storage System

The auxiliary high-pressure piston accumulator system enables ROV (remotely operated vehicle) intervention systems to meet the regulatory requirement of a minimum shut-down time of 45 seconds at the maximum allowable pressure. As requirements for controlling secondary blowout preventer stacks become increasingly stringent, users can rely on our proven, code‑compliant ROV intervention approach, employing the SCHWERLL auxiliary rapid‑intervention accumulator system.

2024

Accumulator-powered source for the leveling system

Offshore platforms experience oscillations due to wind, waves, and other environmental factors. Similarly, during the installation of offshore wind‑energy systems, ships, and large equipment, external influences, uneven load resistance, or inconsistent mechanical transmission accuracy can all necessitate leveling adjustments. By employing accumulators to buffer, absorb, and release energy, pressure fluctuations can be balanced; further, real‑time servo‑controlled flow‑rate feedback enables highly precise leveling performance.

2024

Longitudinal and Lateral Replenishment Energy-Storage Hydraulic Control System for Ships

During maritime navigation and operations, waves or strong winds can generate longitudinal and transverse impacts, compromising the vessel’s stable course and operational integrity. To ensure dynamic stability, lateral and longitudinal trim‑adjustment systems are typically installed to maintain equilibrium.

2024

High-precision synchronous servo-hydraulic control system for cylinder valves, etc.

When the dimensions and specifications of hydropower intake valves are relatively large, a cylindrical valve can be employed as the inlet valve. Taking a cylindrical valve actuated by six hydraulic cylinders as an example, during normal opening and closing operations, an electro‑hydraulic synchronous control system powered by accumulators is required. Moreover, even in the event of a power outage, the electro‑hydraulic control system must still ensure high‑precision synchronous closure under running‑water conditions. Traditionally, this has been achieved through a mechanical gravity‑chain transmission for synchronized closure; in contrast, the Xiwel servo‑synchronization system utilizes piston accumulators with energy monitoring as its power source and employs specially designed synchronous hydraulic cylinders to enable shutdown under running‑water conditions during a power failure. This approach not only significantly enhances the precision of the synchronized motion but also results in a more compact and streamlined overall system design.

2024

High-speed servo hydraulic cylinder with displacement sensing device

To implement closed-loop control of hydraulic systems—such as flow‑rate regulation—it is essential to accurately measure piston‑rod displacement in real time. In particular, for long‑stroke, high‑speed piston cylinders, it is necessary to use servo‑hydraulic cylinders equipped with precision piston‑rod displacement measurement systems.

2024

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Schwerll Fluid Control (Beijing) Co., Ltd.

Mobile: 0086 18201267391

Email: schwerlltec@schwerll.com.cn

Address: Building 39B, Floor 1, No. 16, Huanke Zhong Road, Tongzhou Park, Zhongguancun Science and Technology Park, Tongzhou District, Beijing

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