一种缸体式燃气表的设计探讨

Design of Rigid Cylinder Gas Meter

电能、自来水和燃气已经成为支撑居民生活的重要能源保障,针对这三种能源的计量仪表是智能电表、水表和燃气表。随着电子技术和互联网技术的发展,目前智能电表和水表基本已经完成了新的计量方式的改型设计,它们的精度和适应性都有较大提升。而燃气表的计量方式还基本沿袭着传统的膜式燃气表的计量方式,仅仅在字轮部分增加了传感器进行采样。这种设计思路虽然简便,但众所周知,膜式燃气表基础计量是需要依靠橡胶皮膜的作为测量介质的,而橡胶皮膜的物理性质受环境影响较大,且随着日常的使用会产生不可逆的老化,因此膜式燃气表的计量误差和适应性均很难得到提升。因此,研究结合了电子控制部分和硬质缸体来取代橡胶皮膜作为计量介质的新式燃气表,有望改善原有膜式燃气表计量方式的不足,计量精度和适应性都可实现大幅提升。

Electricity, water and gas has become the most important energy guarantee in daily life, and the corresponding metering devices are smart meter, water meter and gas meter. With the development of electronic technology and internet-based life, smart meter and water meter has basically completed the transformation of new metering way, which get big promotion in accuracy and adaption. Meanwhile gas meter still use the traditional way of diaphragm gas meter, with additional sensor sampling of character wheel. Simple as the method is, it is well-known that basic metering of diaphragm gas meter depends on rubber diaphragm as metering medium. The physical property of rubber diaphragm is affected greatly by environment, and will deteriorate with daily use, so it is hard to get a promotion in metering error and adaption of diaphragm gas meter. Therefore, research of electronic control part and rigid cylinder to replace the rubber diaphragm as metering medium will improve the disadvantage of traditional diaphragm gas meter, and promote the metering accuracy and adaption greatly.