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  1. 首页
  2. 能源效率 - 解决方案 - 液压单元

液压单元

经济便捷的安置

液压单元包括油箱,排量泵,方向阀,保持阀和执行器等多种装置。它们被布置在逻辑电路中,以通过由一组或多组电动机和液压泵执行的流体位移来实现某一机器的运动和控制。

由于其简单的操作,液压驱动器用于许多不同的应用中,例如压力机,热成型机,卡车自卸车,注塑机和压光机。

值得注意的是,在这种应用中,当不需要运动时,液压泵和电动机在液压流体循环时以额定速度运行,导致电能浪费和不必要的油加热。 另一方面,关闭电动机可能会由于连续启动和油泵机械磨损过大而导致设备烧毁。

用于液压单元的WEG节能解决方案可以根据机器的实际需要来调节电机和泵的转速,根据生产过程特性使流体循环,从而在设备上实现节能(例如,在液压机上更改压制零件,或卡车进行自卸作业时)。

该解决方案的一个很大的优点是对机器系统的低干扰,因为电机没有机械变化,机器可以在维护变频器的情况下使用原始起动器继续运行。

特别是在注塑机应用上,电动机的速度调制是由液压系统发送的原始模拟信号,通过安装在变速驱动器的PLC的独家软件应用程序上进行。 在这种机器中,由于液压系统的要求根据循环阶段(模具的打开和关闭,注射和压缩,冷却和计量)的不同要求,WEG能源效率解决方案几乎可以在任何操作循环中节省成本。

我们的解决方案是改造旧机器的一个很好的选择,因为现代注塑机使用类似的概念; 然而,对新机器的投资要高得多。 值得关注的是,由于市场上可用的注塑机的复杂性和广泛的配置范围,我们建议您联系WEG,如果您对此解决方案感兴趣的话。

优点:

  • 能耗节约最高达60%
  • 安装简易,对生产线和注塑机械影响小;
  • 降低液压使用液体温度,从而降低液压零部件损耗。

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