Gas meters are technical devices specifically designed to measure the volume of gas that passes through a gas pipeline over a certain period of time. In other words, these devices are used to account for energy consumption. Gas meters help to efficiently keep records of consumption and provide an opportunity to save significant money. Like any other measuring device, these devices undergo a mandatory examination to determine suitability. The initial calibration of gas meters is carried out at the production outlet, and periodic calibration is carried out in the process of direct operation.
Modern devices, according to their bandwidth, can be divided into three main categories. The first group includes industrial devices used by large enterprises and installed on large gas pipelines. The capacity of such devices is about 40 m / h. The second group includes a variety of models of household appliances. Such gas meters are used, as a rule, in enclosed spaces. For example, in office buildings or apartments. The capacity of devices of this type does not exceed 6 m / h. The third group of devices includes household appliances, mainly used at special gas distribution stations. Utility meters have a fairly high throughput, starting at 10 m / h. Today, such devices are most often installed at gas stations.
However, not only throughput can underlie the separation of gas meters into classes, but also their principle of operation. The most unclaimed at present is the drum gas meter, which is used, as a rule, in research centers and research laboratories. The principle of operation of such a device is very simple. A drum rotating with a gas passing through it drives a specific mechanism that is connected to a counter. The second type is a
vortex counter, which is based on the calculation of the frequency of occurrence of vortex flows around a given streamlined object (using a gas stream).
One of the most common today are the devices of the third type - membrane gas meters. In this case, the main principle of action is the special moving parts that are components of these devices. The gas entering them is divided into certain shares, after which the production and summation of all necessary readings is performed.
And the last, fourth type is a rotary or RVG gas meter, which was developed due to the increase in the variety of gas equipment. The principle of its operation is extremely simple. There are two rotors (or more) inside the device. It depends on the purpose of the device. The gas passing through them transfers certain mechanical vibrations to them, and all data is automatically recorded in memory. This is one of the most versatile and easy-to-use devices of this type.
These or other types of gas meters are used everywhere in the modern world. When purchasing these devices, first of all, one should take into account the volume of energy consumption and the specific needs of this device. It is these indicators that will help to better navigate in the presented variety and choose the appropriate gas consumption metering device.