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搅拌机，脱水和鼓风机的驱动器

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废水管理使用多种水处理系统

提高性能，降低能源和成本

在水行业中使用交流驱动器正在不断增加。如今，从水生产和分配到污水处理系统和废水处理厂的废水在市政当局和业务的工业方面，驱动器已被广泛用于整个行业。交流驱动器控制着电动机的速度，以各种泵，鼓风机，搅拌机和脱水应用程序来帮助提高性能和价值，同时节省能源和成本。

水管理不必大量消耗能量

通常，水和废水处理过程占市政当局电费的25-40％，相当于全球电力消耗的4％。因此，水和废水设施通常是市政当局的最大电力消费者。

在这个Aarhus水废水处理厂改变游戏的废水管理

通过广泛使用AC驱动器，节能组件和现实生活中的在线工艺控制，结合了基于废水植物消化酯的甲烷的能源生产，现在第一个全尺度设施正在完全中性地进行运行。这是在不添加外部碳的情况下获得的。能量中立性涵盖了从水生产和分配到废水泵送和处理的整个水周期。

废水处理厂

废水处理厂

废水处理厂的最新流行语是“生物炼油厂”和“水资源回收设施”。这些涵盖了废水必须被视为可以从中获得能源和有价值资源的资源的普遍接受。In some of the most advanced cases, energy production has now (even without adding external carbon resources) got to a level where the energy recovered from wastewater treatment process not only covers the plant’s own needs, but also the energy needs for drinking water production and distribution as well as wastewater pumping. In other words, the whole water cycle can be considered energy neutral.

能源中立的前提条件是用于所有旋转设备的交流驱动器的形式的控制手柄，因此完全计算机控制的设施可以适应不断变化的负载。通常，在生物过程中使用了30-60％的能量。AC-DRIVE控制通常可以将能源消耗降低20-40％。通过控制RAS泵的控制对污泥年龄的控制对于限制能源消耗也很重要，也避免“燃烧”碳，这是消化池在产生能源生产的气体所需的。已为其中一些最先进的设施选择了VLT®AquaDrive，在这些设施中，驱动器的效率高，可靠性和易于操作易于选择标准。

有效的废水处理和盈余能源生产

有效的废水处理和盈余能源生产

在废水处理厂中，高能量消耗与能源密集型过程和连续运行周期有关：每年365天24/7。该行业的重点一直在制定新的流程和控制策略，以减少每升处理水消耗的能源。但是，例如，根据对增加营养的需求，增加净能耗的需求，对废水处理质量的提高需求。这更需要基于高级过程控制来减少能源消耗。

打击器或表面曝气器通常消耗废水处理厂中使用的总能量的40-60％。使用Danfoss AC驱动器控制曝气设备可以节省30–50％的能源。

另外，有效控制污泥平衡和用交流驱动器的污泥年龄减少能源消耗。它还增加了消化池的碳量，然后可以产生更多可用于能源生产的气体。

因此，最先进的设施能够将废水清洁到很高的水平，同时产生剩余的能量。这样做的前提是通常是一个完全计算机控制的设施，可以通过在或多或少的所有旋转设备上安装交流驱动器来调节所有参数。

工业水和废水

工业水和废水

许多行业已经实现了干净稳定的供水的重要性，并利用机会在废水处理方面进行了重大成本降低。一些行业甚至朝着零或非常接近零的用水发展。在干净的水面，这需要利用高级水处理技术，例如RO和超滤。VLT®AquaDrive有助于提高过程可靠性并降低运营成本。在废水处理方面，这种趋势类似于市政当局的愿景。废水应被视为可以从中获得能源和其他资源的资源。

从废水处理过程中产生剩余功率

自2010年以来，Marselisborg废水处理厂已将其重点转变为最大程度地减少消耗的能源，以最大化净能量盈余。如今，该设施的电力和热量均具有净生产，可为丹麦第二大市政当局Aarhus提供地区供暖系统。碳足迹已相应地减少了35％。

阅读案例研究

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VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.

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Dedicated functionality that improves flow control and saves energy in industrial pump and fan applications.

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案例故事

AC drives from Danfoss help convert biomass from insulin and enzyme production to energy.

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With its compact and temperature-resistant design, the drive integrates easily into actuators from Schiebel Antriebstechnik GmbH, providing high-precision flow control.

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VLT® AQUA Drive FC 202 with IP66 protection provides fast and accurate control of pump pressure for essential aquaplaning tests.

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By controlling the motor in a pool, VACON® 20 Cold Plate can achieve energy savings of up to 70%.

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VACON® 100 FLOW provides even flow and reduces pressure spikes in the water supply in the west coast of Finland.

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Wastewater treatment plant’s use of AC drives on rotating equipment creates net production of both electricity and heat and reduces its carbon footprint by 35%.

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