| 摘要 |
The utility model will find an application in industry, where it is necessary to measure the exact concentration of one or more dissolved gases in a fluid, for example in the operation of powerful transformers, current-limiting reactors and the like. The system of devices for measuring and analysis of dissolved gases in a fluid comprises of a measuring device for measuring the concentration of the dissolved gases and an analyzing device for computation and analysis of the measured concentrations. The measuring device includes an evaporation chamber (2), equipped with gas sensors located in the chamber (2) and attached to its upper wall, whereby each gas sensor is connected with the analyzing device. The evaporation chamber (2) has, in its lower end, an input pipe (4), attached to one of the side walls of the evaporation chamber (2) and an output pipe (5), attached to the opposite side wall of the evaporation chamber (2), whereby the input pipe (4) and the output pipe (5) have a common longitudinal axis, and each of the pipes (4, 5) is equipped with a fluid valve (6), whereby in the upper section of one of the side walls of the chamber (2) is positioned a ventilation valve (7), and the gas sensors are metal-oxide gas sensors, which make up a set (3), including a number of sensors equal to the number of the measured gases, whereby for each measured gas, there is a respective metal-oxide gas sensor with a predominant sensitivity to this gas, and at least one of the remaining gas sensors in the set (3) has a lower sensitivity to this gas. The analyzing device (8) is located outside of the measuring device and includes an analog-digital converter (8.1), connected with a digital logic unit (8.2), connected with a communication module (8.3), whereby each metal-oxide gas sensor from the set (3) is connected with the analog-digital converter (8.1). 1 claim, 1 figure |
