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一、水表概况目前国内各厂家生产的水表,大部分是湿式的(特别是15—20口径的均为湿式),现有的一些干式水表与本文所介绍的“永磁干式水表”在原理和构造上都有根本的区别。目前这些干式水表在实际应用中,尚有很多需进一步研究解决的技术问题。湿式水表的整个表机由于完全浸入在被测水中,使用的时间长了,会带来下列一些难于解决的问题: 1.水中的杂质逐渐挂在表机中的各个部位,使得表玻璃、表盘、指针等锈蚀,表盘变色,表玻璃摸糊不清,影响水表的质量和美观。 2.维护不方便。水中杂质污垢贴挂在所
First, the water meter Overview At present, the domestic manufacturers of water meters, most of them are wet (especially the 15-20 caliber are wet), some of the existing dry water meter and this article describes the “permanent magnet dry water meter” in There are fundamental differences in principle and structure. At present, there are still many technical problems to be solved in the practical application of these dry water meters. The entire table of the wet type water meter is completely immersed in the water to be measured and has been used for a long time. The following problems are difficult to be solved: 1. The impurities in the water gradually hang up in all parts of the watch, making the watch glass, the dial , Pointer and other corrosion, dial discoloration, table glass blurred, affecting the quality and appearance of the water meter. 2. Maintenance is not convenient. Impurities in the water dirt paste hanging in the