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Maintenance of elliptical gear flowmeter

Author: Release date: 2015-03-04 14:03:31 Source: Shanghai Cixi View: 217
Maintenance of elliptical gear flowmeter
1. Before installation and use, the specification, measuring range, working pressure and working humidity of the flowmeter should be verified. When measuring corrosive medium, the material of flowmeter should be paid attention to whether it meets the requirements.
2. When flow meter is installed on continuous production line, bypass pipeline and valve shall be set to facilitate cleaning and maintenance.
3. When installing, the direction of arrow on the flowmeter and filter shell is consistent with the liquid flow direction, and the filter should be installed at the inlet end of the flowmeter.
4. When installing the flowmeter, ensure that the elliptical gear is in the horizontal position and avoid installing on the riser as far as possible.
5. When the flowmeter is installed on the horizontal pipeline, the flowmeter shall be installed on the main pipe line (the bypass pipeline is set under the main pipeline and pipeline), and when the flowmeter is installed on the vertical pipeline, the flowmeter shall be installed on the bypass pipeline to avoid blockage of debris.
6. When the installation position is different, in order to facilitate reading, the meter head can be removed for 90 ° or 180 ° installation.
7. The installation position is convenient for maintenance and repair. If the size of meter is larger than DN50, it should be supported to prevent large vibration.
8. When the measured medium contains gas, a gas separator (degasser) should be installed upstream of the flowmeter.
9. A pressure gauge can be installed at both ends of the flowmeter filter to check the working condition of the flowmeter and the filter.
10. When the flowmeter is started, the bypass valve should be opened first, then the flow metering valve should be opened (pay attention to the steel opening slowly), and then open the outlet valve slowly. When opening the outlet valve, pay close attention to the flow meter's moving speed. When the flow meter works normally, the bypass valve should be opened immediately At the same time, close the outlet and inlet valves of the flowmeter, and conduct the curve inspection.
11. When selecting the flowmeter, the actual flow rate should be within 50% - 80% of the flow range of the flowmeter. The flow rate should not exceed the flow range of the flowmeter.
12. After the newly installed pipeline type maintenance is used, the filter must be opened to remove impurities one day after it is put into operation. In normal use, the filter must be cleaned once every six months for light weight oil and three months for heavy oil, so as to avoid the damage of flowmeter caused by filter blockage or damage.
13. It is forbidden to purge the flowmeter with steam to avoid damage to the flowmeter with elliptical gear rotor.
14. It is not allowed to measure the medium transported in the gas-liquid dual-purpose state. If necessary, a pressure stabilizing device shall be installed in front of the flowmeter to ensure the measurement in the liquid state.

The above is the introduction of Shanghai Cixi on the maintenance of elliptical gear flowmeter, I hope it can help you, if you still have related product problems, you can call the page for consultation! The company provides 24-hour service!

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