我公司是1999年3月份开始投产运行的,截至同年5月份,公用工程脱盐水(纯水)岗位,因3次发生缺水事故,造成中间水泵(塑料离心泵)的机械密封过热烧坏,给生产带来了影响,且同种事故在短时间内频繁发生。为此,我们自制了一个简单的水位自动报警器,主要原理是利用水的浮力及浮筒的自重来达到水位自动报警的目的。装置如图1,主筒采用聚乙烯管(ABS),电源采用3节1.5V电池,电铃采用市售门铃。 My company is in March 1999 began operation, as of May the same year, the public works desalination water (pure water) positions, due to three water shortages, resulting in the middle of the pump (plastic centrifugal pump) mechanical seal overheating burn, Has brought the influence to the production, and the same type of accident happens frequently in a short time. To this end, we made a simple self-alarm water level, the main principle is to use water buoyancy and buoy weight to achieve automatic water level alarm purposes. Device shown in Figure 1, the main tube with polyethylene pipe (ABS), power supply with 3 1.5V batteries, bell with a commercially available doorbell.