电站水轮机进水阀门液压系统控制设计.doc
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- 电站 水轮机 进水 阀门 液压 系统 控制 设计
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1、摘要液压系统分为液压传动系统和液压控制系统两种类型,本文的研究对象是液压传动系统。液压系统是能实现系统功能的液压回路的总和。液压回路又是能实现某种规定功能的液压元件的组合。液压元件是组成液压系统的基本单元。主要的液压元件有液压泵、执行元件(液压缸、液压马达)、液压控制阀(压力控制阀、流量控制阀、方向控制阀等)、液压辅件(密封圈、滤油器、蓄能器、油箱及其附件、管件、热交换器等)。液压控制阀按照其安装形式的不同又可分为普通阀、叠加阀、插装阀。液压回路是液压元件组成的功能单元。液压回路主要有压力控制回路、流量(速度)控制回路、方向控制回路、安全回路、定位回路、同步回路、顺序动作回路等。以上分类只是粗
2、略分类,限于篇幅,详细分类此处不一一列出。液压系统设计就是根据机械师提出的主机的动作循环要求、静、动态性能及液压系统工作环境等方面的要求,进行系统的工况分析,确定主要参数(包括系统压力、系统流量、液压执行元件类型及主要参数等),选择合理的液压回路和液压元件,设计工作的最终形式是液压系统原理图和各种技术文件。AbstractHydraulic system is divided into hydraulic transmission system and the two types of the hydraulic control system, this paper conducted the
3、 research on hydraulic drive system. The hydraulic system is the sum of the hydraulic circuit to realize the system function. Hydraulic circuit and to achieve a certain regulation function of the combination of hydraulic components. The basic unit of the hydraulic element is composed of hydraulic sy
4、stem. Main hydraulic components of hydraulic pump and actuators (hydraulic cylinder, hydraulic motors, hydraulic control valves, pressure control valve, flow control valve, direction control valves, etc.), auxiliary hydraulic parts (seal, oil filter, accumulator, oil tank and its accessories, pipe f
5、ittings, heat exchangers, etc.). Hydraulic control valves according to the different forms of installation and can be divided into ordinary valves, stacked valves, cartridge valve. The hydraulic circuit is composed of hydraulic components function unit. Hydraulic circuit mainly include pressure cont
6、rol loop, direction of flow (speed) control circuit, control circuit, safety loop, position loop, speed circuits, sequential circuits, etc. The above classification is just a rough classification, limited to space, detailed classification differ a list here. Hydraulic system is designed according to
7、 the requirements of the mechanics of the host action cycle, static, dynamic performance and meet the requirements of the hydraulic system working environment, analyzed the operation condition of the system, the main parameters (including the system pressure, flow, hydraulic actuators type and the m
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