专项技术分析报告,效果

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1、专项技术分析报告,效果篇一：专项技术分析报告(恒压供水)生活水恒压供水系统的专项技术报告一、问题的提出惠来电厂原生活水供水系统包括4台电机，其中3台为30KW，1台为7.5KW，1台变频器。4台泵的可以在本地和远程控制，采用一拖三的工作方式，起动方式为星-三角起动，使得电路比较复杂化，同时使用一拖三的工作方式不便于设备维修，而且该系统还不能实现远方操作，自动控制效果不好。二、供水系统的要求在设备运行中，由于用水量的变化，使供水压力发生变化，通过压力传感器将压力变化信号传送给可编程控制器，经编程控制器与设定压力比较判断后，调整变速泵转速或水泵运

2、行台数，调整供水流量使供水压力重新回到设定的压力值，满足用水要求。当用水量大，管网压力降低，变频器立即将频率提高，变频泵转速加快，管网中压力随即升高，当一台变频泵达到最高频率时仍无法满足给定压力时，PLC将自动启动另一台变频泵满足要求。organizationsystemandworkingmode,theselectionofanumberofmunicipalstrengtheninggrouptobuildinnovationandstrengthentheorganizationofthebasiclevelorganizations

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