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Energy storage hydraulic control system with reliable energy monitoring
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Energy storage high-flow hydraulic forming system
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High-precision digital servo synchronous actuation system
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Energy storage high-flow electro-hydraulic servo test system
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Energy storage, large flow compensation and balance hydraulic control system
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Energy storage hydraulic control system with reliable energy monitoring
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Hydraulic Control System for Ultra-Large-Scale Accumulative Extrusion Forming of High-Temperature Alloys
Published Time:
2024-12-30 16:16
Category:
Solution
Energy-Storage High-Flow Liquid-Controlled Forming System
Pressurized energy storage power system
High-temperature alloy ultra-large energy storage extrusion molding hydraulic control system
Large‑scale steel extrusion presses require immense metal‑forming forces. The SCHWERLL ultra‑large piston accumulator system is the optimal solution, enabling higher‑capacity extrusion pressures while significantly reducing installed power, effectively minimizing the footprint, and delivering a more compact, energy‑efficient design.
The process advantages of a hydraulically controlled system that uses an SCHWERLL piston accumulator as its primary power source include: 1. Using standard oil pumps, the system only accounts for accumulator charging and other process requirements that necessitate pump control—such as vertical perforation—and features a reduced overall number of components. Moreover, it accommodates standard‑specification pumps at an affordable price, and the accompanying high‑power motors with soft‑start functionality are available in limited quantities. The volumes of the fuel tank, cooling system, and return oil filter are all relatively small. 2. Large-scale extrusion presses for steel and titanium tubes generally employ a piston‑accumulator system as the primary power source for the extrusion process. On extruders equipped with electric oil pumps, the extrusion energy is increasingly derived primarily from accumulator systems. 3. In extruders, employing dynamic accumulator drive can achieve 400… Maximum valve stem speed in mm/s (the actual speed shall be determined based on the accumulator’s volume) 4. The accumulator system features low operating costs, including electricity consumption, in the later stages of operation. 5. The cleanliness requirements for hydraulic fluids are lower when using standard hydraulic pumps compared to those for electronic pumps paired with high‑precision proportional servo valves, which is more conducive to subsequent operations. 6. Extruders equipped with accumulator systems represent a well‑proven, engineering‑validated, and highly cost‑effective solution. When pump‑controlled, the process is characterized by: 1. Oil pumps typically require electronically controlled oil pumps with closed-loop pressure, flow, and power regulation; for example, consider extrusion. 3s 600L Taking the oil‑drain requirement as an example, with a flow rate of 12,000 LPM, even considering only extrusion, the pump would still need to deliver 24. Taiwan 500LPM Electronic oil pump, with matching motor (for high-power applications) 24 Taiwan) + accompanying soft-start control cabinet 24 Set + large-capacity oil tank + high‑power cooling and return‑oil filtration; both the system and installed power are exceptionally substantial. 2. Meanwhile, the system cleanliness requirement is: 6 Level; high requirements for control difficulty and precision 3. The installed volume is enormous. 4. Once the equipment is put into operation, its energy consumption is substantial.
Leveraging its cutting-edge technology for ultra‑large piston accumulators—featuring high‑precision cylinder‑bore machining with exceptionally low residual stress—and robust raw‑material quality‑control processes, SCHWERLL has, in recent years, supplied super‑large steel extrusion presses with high‑capacity, 35 MPa‑rated, hydraulically controlled accumulator systems. Its products have been integrated into equipment from leading manufacturers such as Danieli, while also equipping steel extrusion presses from Panzhihua Special Steel, Changbao Co., Ltd., Jiuli Co., Ltd., Longda Co., Ltd., Tongze, Jiangsu Jinhe, and others, delivering high‑quality, reliable, and stable performance.
In the field of large extrusion presses, SCHWERLL has, in recent years, become the industry’s leading supplier of super‑piston accumulator systems for such equipment, backed by a wealth of proven applications.
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What are the causes of severe pressure drop and shortened service life in bladder-type accumulators?
What are the causes of severe pressure drop and short service life in bladder-type accumulators? The structure of a bladder-type accumulator is quite simple, consisting mainly of an oil chamber surrounding the bladder and a gas chamber equipped with a gas‑tight seal. During operation, the hydraulic fluid must be connected to the hydraulic circuit; when the system pressure rises, the fluid flows into the accumulator, compressing the gas until the pressure in the system pipeline stabilizes.
How can we reduce failures when an accumulator malfunctions?
If an accumulator malfunctions, its performance will be directly affected, potentially leading to abnormal pressures and system failure. Therefore, it should receive close attention during routine operation, and appropriate measures must be implemented to mitigate risks. So, how can we minimize failures when an accumulator malfunctions? The following sections address this issue.
Accumulators are intriguing components in hydraulic systems, analogous to capacitors in electrical circuits or springs in mechanical systems. As critical energy‑storage elements, they serve a variety of sophisticated functions, including hybrid‑power applications, shock absorption, pressure stabilization (and sometimes flow‑rate regulation), and the rapid release of stored energy to simulate impacts.
Is a bladder-type accumulator suitable for use in series with gas cylinders or cylinder banks?
1. Bladders typically have a shorter service life than piston‑type accumulators, and their quality varies significantly among different manufacturers. 2. Many factors can shorten a bladder’s lifespan and lead to rupture, including variations in the bladder’s intrinsic quality and durability; improper handling during assembly (e.g., failure to pre‑fill with fluid for lubrication); incorrect procedures during pre‑charging (e.g., insufficiently slow inflation); errors in calculating the pre‑charge pressure; oil‑port flow velocities approaching or exceeding 7 m/s; single‑stroke reciprocation times of 10 seconds or less when used for energy storage; collisions between the bladder and check valves during operation; large temperature fluctuations (including significant seasonal differences); prolonged lateral vibration; fluid‑induced corrosion; and inertial impacts from minute solid contaminants in the working medium, among others.
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