毕业设计（论文）-离心式渣浆泵结构设计说明书

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1、摘要离心式渣浆泵广泛应用于煤炭、矿山、冶金、电力、水利、交通等部门，主要进行静矿、尾矿、灰渣、泥沙等固体物料的水力输送，但其过流部件的磨损相当严重，其主要破坏形式为过流部件洞穿和变形，过流部件的严重磨损，恶化了泵内流动特性及外特性，缩短了泵的实际使用寿命，使生产效率降低，加大耗能和设备的投资，进而影响生产的发展。因此所设计的渣浆泵中采用多叶片数来减少单个叶片的磨损，适当的增加过流部件的厚度并采用高硬度的耐磨材料来来减小磨损，将叶轮入口的后盖板设计为凸出的、由光滑圆弧组成的轮毂头。采用填料密封来防止高压液体从泵中漏出和防止空

2、气进入泵内并用背叶片来平衡轴向力。本设计详细介绍了渣浆泵的总体结构，工作原理和结构设计。关键词：叶轮背叶片填料密封AbstractTheslurrypumpistheextensiveapplyinginthecoal,mineralmountain,metallurgy,electrical,waterconservancy,transportationandsoon.Itismaintoproceedthewaterpowerofthestaticmineral,tailmineral,ashgrain,sedimen

3、tsolidmaterialtransportation.Butitsveryseriousovertheabrasionthatflowtheparts.Itsmainbreakageformisoverflowthepartspenetratewithtransformation.Overseriousabrasionthatflowtheparts，itisworseningthepumpinsideflowscharacteristicandoutsidecharacteristics,shortingtheact

4、ualservicelifeofthepumpandmakingproductionefficiencylower,enlargingconsumestheinvestmentoftheequipments,andthenaffectingthedevelopmentoftheproduction.Itadoptmanyleaf'snumbertoreducethesingleabrasionofleaf'ssliceforthisdesigningslurrypump,alsoincreasedcombinesovert

5、hethicknessthatflowthepartsthehighdegreeofhardnessinadoptionbearstowhetthematerialtocometoletupthewearandtear,andempressedanentrancecoversplankdesignastobulgeandsmoothhubcaphead.Adoptedthefillerwhichissealedcompletelytopreventthehighpressureliquidtoleakfromthepump

6、withkeepairfromenteringtopumptheinsidecounteracttocarryonthebackleaf'sslicetoequilibriumstalkfacedint.Thisdesignwasdetailedtointroducethetotalconstructionthatslurrypump,theworkprincipledesignswiththeconstruction.Keywords:impellerauxiliaryimpellerthefillerseals目录摘要

7、…………………………………………………………………………ⅠAbstract……………………………………………………………………Ⅱ一般部分第1章概论………………………………………………………………11.1泵的定义及其用途……………………………………………11.2泵的分类………………………………………………………11.2.1叶片式泵………………………………………………11.2.2容积式泵………………………………………………11.2.3特殊类型的泵…………………………………………2第2章泵的结构设计与计算………………………………

8、…………32.1泵基本参数的确定………………………………………………32.1.1泵吸入口和排除口的确定…………………………32.1.2轴径的初步计算……………………………………32.2叶轮的水力设计…………………………………………………52.2.1叶轮的主要参数的选择和计算……………………52.3压水室