纸浆泵系列设计+CAD图纸
时间:2016-12-27 20:34 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：随着造纸工业的快速发展及对造纸工业技术装备引进和技术改造投资的重视，造纸工业装备企业的规模、技术水平、制造能力等都产生了明显变化。而纸浆泵作为一种主要的浆料输送机械，由于其高效、节能、汽蚀性能好、寿命长、浓度高、结构合理等优点，在制浆造纸厂、制糖业、城市排污业等行业中起着重要的作用，并已经被广泛使用。纸浆泵是依靠旋转叶轮对液体的作用把原动机的机械能传递给液体。由于纸浆泵的作用，液体从叶轮进口流向出口的过程中，其速度能和压力能都得到增加，被叶轮排出的液体经过压出室，大部分速度能转换成动能，在叶轮离心力的作用下，沿排出管路输送出去，于是，旋转着的叶轮就连续不断地吸入和排出液体。4820 关键词： 造纸；叶轮；汽蚀 Abstract：With the rapid development of paper industry and the paper industry technical equipment introduction and technical transformation investment attention, had an obvious change paper industry equipment enterprises scale, technology level, production capacity. Pulp pump as a main pulp conveying machinery, due to the advantages of high efficiency, energy saving, good cavitation performance, long life, high concentration, reasonable structure, plays an important role in pulp and paper mill, sugar industry, city sewage disposal industry and other industries, and has been widely used. Pulp pump is to rely on the role of the rotating impeller on the liquid is the prime mover of the mechanical energy transmitted to the liquid. Due to the effect of pulp pump, liquid from the impeller inlet process flow of exports, its speed and pressure are increased, the impeller discharge liquid through the discharge chamber, most speed can be converted into kinetic energy, in the impeller under the action of centrifugal force, so the discharge line to transfer out,, the continuous rotation of the impeller continuous suction and discharge of liquid. KeyWords: Papermaking;impeller;cavitation 目录 1 绪论 1 1.1 选题的背景 1 1.2 国内外研究现状 2 1.3 课题的实际应用和意义 4 2 纸浆泵的工作原理以及主体结构 5 2.1 纸浆泵的工作原理 5 2.2 纸浆泵基本构造 5 3 纸浆泵设计方案认证 7 3.1 主要结构方案分析 7 3.1.1 支撑形式的确定 7 3.1.2 涡室形式的确定 7 3.1.3 纸浆泵安装方式的确定 7 3.2 电动机的选择 7 3.2.1 交流同步电动机 7 3.2.2 直流电动机 8 3.2.3 三相异步电动机 8 3.3 纸浆泵叶轮形式方案认证 9 3.3.1 开式、半开式纸浆泵 9 3.3.2 单、双流道泵 10 3.3.3 旋流式泵 10 3.3.4 螺旋离心式泵 10 3.4 涡室主结构方案认证 10 3.4.1 压出室方案论证 10 3.4.2 吸入室方案论证 11 3.5 纸浆泵其他零部件设计 12 3.5.1 轴套的设计 12 3.5.2 轴封的选择 12 3.5.3 联轴器的比较与选择 13 3.5.4 水封环的设计 14 (责任编辑：qin) |