In the process of daily production and operation, when the orifice flowmeter is abnormal or deviated, the instrument maintenance personnel should promptly rule out whether it is caused by the change of process conditions, and then further rule out whether it is caused by the differential pressure transmitter, the three-valve group or the orifice itself. It can be said that the more attention paid to the maintenance of the flowmeter, the longer its service life can be extended to a certain extent. The following is a detailed introduction to the daily maintenance methods of imported orifice flowmeters by the editor of Ailita Instruments.

　　First, if the measured gas is, then it is necessary to remove the accumulated liquid in the pressure pipe and differential pressure transmitter before using the inlet orifice flowmeter. If it is necessary to measure oil, then the system needs to be drained. water or gas inside, and make sure that the medium fills the pipeline. Before starting the measurement, it is also necessary to check each auxiliary joint, valve and ferrule to see if there is any leakage, especially if there is any drift in the zero point.

　　Second, we all know that in the cold winter, when using the imported orifice flowmeter, for the medium with low freezing point, we need to cooperate with the pressure line insulation and heat tracing work in advance, so as to avoid the inaccurate measurement. Case. Because the weather temperature is low, it is easy to cause the medium to condense at the pressure pipe, which will affect the measurement in serious cases. At the same time, this operation can also ensure that the flowmeter does not have problems.

　　Third, we also need to check regularly whether the design parameters of the imported orifice flowmeter are consistent with the actual parameters, especially whether its measurement range meets its accuracy requirements.

　　In summary, the use of imported orifice plate flowmeters needs to be operated in strict accordance with the relevant requirements in normal times, especially the need for regular maintenance, so as to prolong its service life. If you have any other questions, please feel free to contact our staff.