立式单级单吸离心泵.pdf

立式单级单吸离心泵立式单级单吸离心泵P。假设算出的质量的大小为 75g，则应该准备 25g、5g、75g、g、25g、5g 的质量，把上述质量依次加在 7 的位置上，测出各种质量加人后转子的振幅，曲线最低点所示的质量即为应加的平衡质量队。把加在 7 的位置上，依照前述方法重复进行测验。若认为不太满意时，可把质量稍微增减，或稍微改变位置，继续找正，直到振幅最小为止。最后决定的平衡质量加到最理想的位置上，则转子在?端轴瓦固定、A 端轴瓦松开时应保持平衡。测定 S 端平衡位置和平衡质量大小。将 A 端紧固、B 端松开，用上述同样的方法测出平衡质量的位置和大小，设为，产生离心力为 J。但根据理论和实际经验，当支点 A 端一旦松开时，转子平衡即被破坏，在 A 侧重新产生不平衡现象。为了使 A 侧的平衡免遭破坏，必须将质量&分为两个质量 QJl，用代替,将<?y 固定在转子另一侧ISGISG 系列单级单吸立式管道离心泵系列单级单吸立式管道离心泵一、产品概述一、产品概述:ISG 系列单级单吸立式管道离心泵选用优秀水力模型，采用 IS 型离心泵之性能参数，在一般立式泵的基础上进行巧妙组合设计而成。同时根据使用温度、介质等不同在 ISG 型基础上派出适用热水、高温、腐蚀性化工泵、油泵。该系列产品具有高效节能、噪音低、性能可靠等优点。二、产品特点二、产品特点:1、清水泵清水泵为立式结构，进出口口径相同，且位于同一中心线上，同阀门一样安装于管路之中，外形紧凑美观，占地面积小，建筑投入低，如加上防护罩则可置于户外使用。2、清水泵清水泵叶轮直接安装在电机的加长轴上，轴向尺寸短，结构紧凑，泵与电机轴承配置合理，能有效地平衡泵运转产生的径向和轴向负荷，从而保证了泵的运行平稳，振动小、噪音低。3、轴封采用机械密封或机械密封组合，采用进口钛合金密封环、中型耐高温机械密封和采用硬质合金材质，耐磨密封，能有效地延长机械密封的使用寿命。4、安装检修方便，无需拆动管道路系统，只要卸下泵联体座螺母即可抽出全部转子部件。5、可根据使用要求即流量和扬程的需要采用泵的串、并联运行方式。6、可根据管路布置的要求采用泵的竖式和横式安装。三、主要用途三、主要用途:1、ISG 型立式管道泵立式管道泵，供输送清水及物理化学性质类似于清水的其他液体之用，适用于工业和城市给排水、高层建筑增压送水、园林喷灌、消防增压、远距离输送、暖通制冷循环、浴室等冷暖水循环增压及设备配套，使用温度 T80。2、IRG(GRG)型立式热水(高温)循环泵广泛适用于：能源、冶金、化工、纺织、造纸，以及宾馆饭店等锅炉高温热水增压循环输送及城市采用暖系统循环用泵，IRG 型使用温度 T120，珀 GRG 型使用温度 T240。3、IHG 型立式管道化工泵，供输送不含固体颗粒，具有腐蚀性，粘度类似于水的液体，适用于石油、化工、冶金、电力、造纸、食品制药和合成纤维等部门，使用温度为 20+120。4、YG 型立式管道油泵，供输送汽油、煤油、柴油等石油产品，被输送介质温度为-20+120。四、工作条件四、工作条件:1、吸入压力1 0MPa，或泵系统最高工作压力16MPa，即泵吸入口压力+泵扬程16MPa，泵静压试验压力为 25MPa，订货时请注明系统工作压力。泵系统工作压力大于 16MPa 时应在订货时另行提出，以便在制造时泵的过流部分和联接部分采用铸钢材料。2、环境温度40，相对湿度95。3、所输送介质中固体颗粒体积含量不超过体积的 01，粒度02mm。ISGISG 系列立式管道离心泵系列立式管道离心泵故障原因及排除方法故障原因及排除方法:故障现象故障原因排除方法1、水泵不出水a、进出口阀门未打开，进出管路堵塞，流道叶轮堵塞。b、电机运行方向不对，电机缺相转速很慢。c、吸入管漏气。d、泵没灌满液体，泵腔内有空气。e、进口供水不足，吸程过高，底阀漏水。f、管路阻力过大，泵选型不当。a、检查，去除堵塞物。b、调整电机方向，紧固电机接线。c、拧紧各密封面，排除漏气。d、灌满液体并打开排气阀，排尽空气。e、停机，检查、调整（并网自来水管或带吸程使用易出现此现象）。f、减少管路弯道，重新选泵。2、水泵流量不足a、先按1.原因检查。b、管道、泵流道叶轮部分堵塞，水垢陈积，阀门开度不足。c、电压偏低。d、叶轮磨损。a、先按1.排除。b、去除堵塞物，重新调整阀门开度。c、稳压。d、更换叶轮。3、功率过大a、超过额定流量使用。b、吸程过高。c、泵轴承磨损。a、调节流量，关小出口阀门。b、降低。c、更换轴承。4、杂音振动a、管路支撑不稳。b、液体混有气体。c、产生汽蚀。d、轴承损坏。e、电机超载发热运行。a、稳固管路。b、提高吸入压力排气。c、降低真空度。d、更换轴承。e、调整按5。5、电机发热a、流量过大，超载运行。b、碰擦。c、电机轴承损坏。d、电压不足。a、关小出口阀。b、检查排除。c、更换轴承。d、稳压。6、水泵漏水a、机械密封磨损。b、泵体有砂孔或破裂。c、密封面不平整。d、安装螺栓松懈。a、更换。b、焊补或更换。c、修整。d、紧固。ISG 系列立式管道离心泵（性能参数）系列立式管道离心泵（性能参数）型 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