Hi, this is little housekeeper, control in the recent small housekeeper attracts mass flowmeter plate, can't help but share with you, this is brought about by the problems when they use the mass flowmeter, the measurements are not allowed to be what we need to be screening, kangkang together,
1, vibration on the influence of the mass flowmeter accuracy, processing methods: avoid vibration interference, if can't avoid, isolation measures should be taken to make the flow meter and the vibration source isolation,
2, the electromagnetic interference on the influence of the mass flowmeter accuracy, processing methods: mass flowmeter installation should be far away from the large transformer, motor produce larger magnetic devices, such as
3, the pressure change on the accuracy of mass flowmeter, the influence of processing method: for ShuZhuan pressure change is big and the custody transfer of oil, in the downstream of the flow meter installed pressure transmitter, real-time pressure compensation, in the form of software
4, oil gas is contained in the impact on the accuracy of mass flowmeter, processing methods: a. to improve the working conditions of oil, which contains bubbles evenly distributed as far as possible, to achieve the requirement of the normal flow meter, computation; B. mass flowmeter, installed upstream gets to minimize the gas-liquid mixing phenomenon; C. in strict accordance with the mass flowmeter installation specification: measuring the oil medium flow pipe down installed
5, the influence of temperature change on the accuracy of mass flowmeter, the processing methods: a. the influence of temperature on the flow meter measuring tube metal elastic can be solved by setting temperature correction coefficient; B. the temperature effect on the stability of the zero point, in practical applications, the need to operating temperature conditions, to the zero mass flowmeter, make to minimize the impact,
6, install the stress on the influence of the mass flowmeter accuracy, processing methods: a. flowmeter installation should strictly comply with the installation specification, b. after the installation of the flow meter, with the hand operator or the transducer interface call out "zero" menu and record producer zero default, zero after the observation of the zero value again, before and after the two values to ensure an order of magnitude, if the differences between the two values, then install the stress is too big, should be reinstalled,
7, oil density and viscosity influence on accuracy of mass flowmeter, processing methods: flowmeter should be used in the measurement of the single or the density difference of oil, the handover for bulk quantity of oil mass flowmeter must use online real flow calibration, and provide on-line densimeter,
8, pipe damage or corrosion of mass flowmeter measurement accuracy, the influence of processing method: a. flowmeter front-end corresponding filter installation, to prevent foreign matter to enter; B. the use of special material flow meter,