【作者】 白志红；

【导师】 熊光煜；

【作者基本信息】 太原理工大学 ， 电机与电器， 2005， 硕士

【摘要】 电磁计量泵作为往复泵的一种,近年来被广泛应用在化工、石油、食品、制药、造纸和塑料等行业,越来越多地受到生产厂家的关注,因此具有很好的研究价值。但是,国内计量泵的研制时间较晚,长期以来,计量泵只是作为国内企业产品的一个种类存在。由于对后续研发重视不够,导致国内该产品的种类和控制模式上滞后于最新的发展趋势。 针对这一情况,本文以美国MILTON ROY公司生产的LMI系列电磁隔膜计量泵为例,提出了一种新型计量泵驱动装置及其控制器的分析和设计方法。该泵采用机械可调的固定冲程的柱塞,使柱塞直接推动膜片工作;采用变频方式调节泵的流量,泵的结构简单,便于维护。 本文对该类电磁计量泵进行了较为全面的研究分析和设计,内容包括:(1)采用磁路分析法和商用ANSOFT电磁场有限元分析软件对电磁驱动机构进行参数计算,并给出其静态磁场分布。(2)采用Maxwell 2D软件包对电磁驱动机构进行静态更多还原

【Abstract】 As a kind of reciprocating pump, Electronic Diaphragmatic Metering Pump (EDMP) has a high research value, owing to much attention paid to it by increasingly many manufactures. It has very wide applications in industries such as chemical, petrochemistry, grocery, pharmacy, plastic and paper making. However, EDMP is only as a kind of products of domestic manufactures. Lack of successional development leads to that our products in kinds and control patterns lag behind the up-to-date development.Aiming at this situation, a new designing method for the drive system of metering pump is proposed in this thesis, based on the EDMP of LMI series produced by MILTON ROY. Adopting pistonpump with fixed stroke adjusted by mechanic equipment, the piston directly drives the diaphragm. The flow capacity of the pump is adjustable in variable frequency mode. With a simple structure, this new type of metering pump is convenient for maintenance and repair.In this thesis, the EDMP is comprehensively developed and designed. The major works in this thesis are summarized as follows:(1)The parameters of the electromagnetic actuator are calculated by the magnetic circuit method and the FEM software ANSOFT. Further, the static magnetic field distribution of the actuator is analyzed.(2)The static characteristic of the electromagnetic actuator is analyzed by the FEM software Maxwell 2D. The spring force is designed on the basis of the static characteristic.(3)The dynamic operating process is simulated and analyzed by Maxwell 2D/Transient software. Besides, the dynamic simulation model is built up under the circumstances of MATLAB/Simulink so that the dynamic characteristics of the pumpmay be simulated.(4)The control circuit of EDMP is designed according to its performance requirements and the dynamic characteristics of the EDMP.更多还原