Among the various domestic water meters currently used in China, the rotary-type wet water meter has been widely used in China because of its simple structure, stable measurement and low price. However, in the actual use process, the glass of the wet water meter often makes the reading of the watch unclear due to fogging, raw moss, dirt and other reasons, which seriously affects the correct reading of the water consumption of the water meter, making the water company difficult to read the meter. There is no charge, and even disputes and disputes arise from the number of degrees the user uses. Therefore, in addition to the performance parameters of the product to comply with the relevant standards, it is especially important to read the reading of the water meter for a long time.
The wet water meter is made up of water from the pipe network entering the case from the water inlet of the water meter, pushing the impeller to rotate, and the gear wheel of the counting mechanism drives the word wheel to count, thereby achieving the purpose of metering. Because the counter is immersed in water for a long time, the water supply quality of the pipe network and the installation environment are affected, so that the surface of the water dial is fogged, scale, moss and other defects, so that the water meter reading is not clear, which affects the reading of the water meter. For example, in some areas with poor water quality, the water entering the water meter slowly communicates with the water in the counting mechanism as the usage time increases, which affects the counter reading. Over time, the scale is generated, so that the counter can't see the reading. In addition, in the southern part of the climate where the climate is relatively humid and hot, especially in Guangzhou, due to the abundant sunshine, the water meter is installed outdoors and the growth of microorganisms in the water is caused by the influence of high temperature and moisture, so it is easy to cause pollution such as moss on the table reading time. A long, seriously affecting the reading of the water meter reading.
