What are the factors to be taken into account when choosing the gas flow meter?
There are many types of gas flow meters that can adapt to a variety of different environments, so what aspects of gas flow timing should we consider? Below we will introduce the knowledge of gas flow meter purchase for you.
1. Process installation:
Although the instrument does not have too many special requirements for the process installation and use environment, any kind of flow measurement instrument has such a common feature. That is, as far as possible to avoid vibration and high temperature environment with the flow state interference elements (such as compressors, separators, pressure regulator, small head and manifold, elbow, etc.), keep the instrument front and rear straight pipe wall smooth and straight, keep the measured medium as clean single-phase fluid.
2, must be calibrated before use:
On the one hand, considering that there are still some difficulties in the field verification of such instruments at present. In addition, if the intention of purchase is to prepare to use this instrument in more important measurement occasions, such as large flow of trade measurement or measurement disputes more prominent measurement points, and the use of the site does not have the flow online calibration conditions, then in this case, only by the purchase of a paper provided by the manufacturer of the factory certificate can easily determine the full performance of the table qualified. That’s a little premature. Therefore, in order to maintain the reliability and accuracy of the measurement results of the instrument in the future work process, it is necessary to send it to the department with the verification ability and qualification in this area for a system verification within the full flow range before the formal installation.
3. Attach importance to instrument selection:
In the case that the type of instrument has been selected, then the selection of the instrument specification and its supporting components is crucial. In a word, choose well to use well. Therefore, two basic principles should be grasped in the selection process; That is, first, to maintain the accuracy of use, and second, to maintain production safety. To do this, it is necessary to implement three selection parameters, namely, the recent and long-term larger, smaller and commonly used instantaneous flow, the design pressure of the measured medium, and the working pressure.
