Method for controlling the moisture of a web in machine direction on a coating machine
    5.
    发明授权
    Method for controlling the moisture of a web in machine direction on a coating machine 失效
    在涂布机上控制幅材在机器方向上的湿度的方法

    公开(公告)号:US06863919B1

    公开(公告)日:2005-03-08

    申请号:US09914657

    申请日:2000-03-02

    摘要: The invention relates to a method by means of which the machine-direction moisture of a web being coated can be controlled in an optimal manner that takes into account moisture content changes along the entire path of the coating and drying process. Advantageously, all the dryers the coater section are controlled in an integrated manner in order to obtain a controlledly processed product which is optimized in regard to energy consumption and product quality. Each process section and unit contributing to the drying of the web is identified by means of a mathematical submodel describing the specific evaporation rate in the respective process section/unit and, by chaining these submodels, a composite model is compiled for the entire process, whereby the composite model makes it possible to manage the drying operation in the process so that the individual units are controlled as a portion of the overall process.

    摘要翻译: 本发明涉及一种方法,通过该方法可以以考虑到涂层和干燥过程的整个路径上的水分含量变化的最佳方式来控制所涂布的幅材的机器方向水分。 有利地,所有的干燥器都可以以整体方式控制涂布机部分,以便获得在能量消耗和产品质量方面优化的受控加工的产品。 通过描述相应处理部分/单元中的特定蒸发速率的数学子模型来识别有助于干燥纸幅的每个处理部分和单元,并且通过链接这些子模型,为整个过程编译一个复合模型,由此 复合模型使得可以在该过程中管理干燥操作,使得各个单元被控制为整个过程的一部分。

    Control method and an adjustment method and a control arrangement and an adjustment arrangement for a fibre web machine
    7.
    发明申请
    Control method and an adjustment method and a control arrangement and an adjustment arrangement for a fibre web machine 审中-公开
    纤维网机的控制方法和调整方法以及控制装置和调整装置

    公开(公告)号:US20060032597A1

    公开(公告)日:2006-02-16

    申请号:US10534305

    申请日:2004-09-09

    IPC分类号: D21F11/00 G06F7/66 D21G1/00

    CPC分类号: D21G9/0045 D21G1/0073

    摘要: The object of the invention is a control and an adjustment method for the fibre web machine. According to the invention—an emitting voice is measured continuously at least from one section of the fibre web machine and frequency bands (df) and/or the combinations of the frequency bands and amplitudes of the same, which correlate state and change of different process values, are separated measuring signals (fm);—the measuring signals are compared with reference signals (fref), which correlate an ideal state or a desired state; and—control signals are generated from deviations of the measuring signals and reference signal (fA), by which control signals the measured process values are returned closer to the ideal state or the desired state.

    摘要翻译: 本发明的目的是一种用于纤维网机的控制和调节方法。 根据本发明,至少从纤维网机器的一个部分和频带(df)和/或其频带和幅度的组合的至少一个部分连续地测量发射语音,其将不同过程的状态和变化相关联 值分别是分离的测量信号(f> m); - 将测量信号与参考信号(f ref ref)进行比较,其将理想状态或期望状态相关联; 控制信号由测量信号和参考信号(f A A N)的偏差产生,通过该信号,测量的过程值返回到理想状态或期望状态。

    Digital Hydraulic Controller
    9.
    发明申请
    Digital Hydraulic Controller 审中-公开
    数字液压控制器

    公开(公告)号:US20120073431A1

    公开(公告)日:2012-03-29

    申请号:US13322800

    申请日:2010-04-13

    IPC分类号: F15B13/04 F15D1/00

    摘要: A digital hydraulic controller has at least two rows of valve elements: one can connect a supply line to a controller output, the other can connect the controller output to an outlet line. The valve elements of each row are connected in parallel and are switchable individually or simultaneously in different combinations with each other and have different flow cross sections. The valve element with the smallest flow cross section is present twice in the row. A system unit has a differential cylinder and a digital hydraulic controller with four rows of valve elements, two of which are, with their common controller output, connected to the one pressure chamber of the differential cylinder, while the other two rows of valve elements are, with their common controller output, connected to the other pressure chamber of the differential cylinder. The differential cylinder can be used as a precisely adjustable linear actuator.

    摘要翻译: 数字液压控制器具有至少两排阀元件:可以将电源线连接到控制器输出,另一个可以将控制器输出连接到出线。 每行的阀元件并联连接,并且可以彼此不同地组合地单独地或同时地切换,并且具有不同的流动横截面。 具有最小流动截面的阀元件在行中存在两次。 系统单元具有差压缸和具有四排阀元件的数字液压控制器,其中两个阀门元件的共同控制器输出连接到差压缸的一个压力室,另外两排阀元件 ,其公共控制器输出,连接到差压气缸的另一个压力室。 差速缸可用作精确调节的线性执行器。