How to maintain the anti-corrosion gas rotor flowmeter in daily life
Corrosion resistant gas rotor flowmeterBelonging to the current generation of flow meters, also known as screw flow meters. Corrosion resistant gas rotor flowmeter is a precision instrument used for measuring and controlling liquid flow in pipelines. The anti-corrosion gas rotor flowmeter can be used for on-site indication, with direct reading of character codes and the ability to distribute signals. It can output electrical pulse signals and transmit them remotely to secondary instruments or computers, forming an automatic control, automatic detection, and data processing system. Corrosion resistant gas rotor flow meters are suitable for harsh environments and highly corrosive media, with good heat resistance and pressure resistance. Corrosion resistant gas rotor flow meters are widely used in industries such as petroleum, chemical, metallurgical, power, transportation, ships, oil depots, docks, and tank trucks, especially for measuring industrial liquids such as crude oil, refined oil, and light hydrocarbons. So, how to maintain metal rotor flow meters in daily life?
1. The anti-corrosion gas rotor flowmeter belongs to precision equipment, so it must be handled gently during transportation, installation, storage, and use to prevent rough transportation, over stress installation, and disorderly placement on the ground. Make sure to guaranteeCorrosion resistant gas rotor flowmeterThe relative position of the indicator and sensor cannot be changed. Once the relative position changes, it will directly affect the measurement accuracy of the instrument.
2. Corrosion resistant gas rotor flow meters usually do not require maintenance. However, during long-term use, ferromagnetic substances are inevitably adsorbed on the float in the pipeline. If there are too many impurities, the float will get stuck or affect the measurement accuracy. Therefore, the sensor of the flowmeter needs to be cleaned. If a magnetic filter is installed at the inlet of the flowmeter, it should also be cleaned regularly. During cleaning, the anti-corrosion gas rotor flowmeter or filter must be removed from the pipeline.
3. For electric remote transmission and flow meters with alarm limit switches, before use, open the instrument cover and wire them correctly according to the instructions. For alarm type limit switches, users can set the limit alarm position as needed, tighten the screw, and use it after restoration.
When used for gas measurement, it should be ensured that the pipeline pressure is not less than 5 times the instrument pressure loss to ensure stable float operation. Generally, instruments for measuring gases are equipped with gas dampers to minimize float oscillation to the maximum extent possible. To further ensure the stability of the float, a throttle valve or appropriate orifice plate can be installed at the outlet of the corrosion-resistant gas rotor flowmeter.
5. When using a corrosion-resistant gas rotor flowmeter, the valve should be slowly opened and closed to avoid damage to the instrument. If the anti-corrosion gas rotor flowmeter is turned on, due to the lack of pressure in the pipeline or the system not reaching the working pressure for normal instrument use, the control valve must be slowly opened until the system is normal,Corrosion resistant gas rotor flowmeterOnly then can it be used, otherwise it is easy to cause pointer jumping or sudden impact of the float and damage.
When using, if the density of the measured fluid is different from that of water, or the parameters and working conditions of the measured gas are different from those specified by the manufacturer, the reading of the flowmeter should be converted. The conversion method is described in the correction.