Detailed explanation of the location and key points of the installation of the gas flow sensor

Abstract: The detailed information on the location and key points of the installation of the gas flow sensor is provided by the excellent flowmeter and flowmeter manufacturers. Detailed explanation of the installation site, location and key points of the gas flow sensor, I hope the following content can help you understand the gas flow sensor. 1. The place where the gas flow sensor is installed The gas flow sensor should be at a temperature of -20~+60℃ of the gas to be measured. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is a detailed explanation of the location and key points of the installation of the gas flow sensor. Explain in detail the installation site, location and key points of the gas flow sensor. I hope the following content can help you understand the gas flow sensor. 1. The place where the gas flow sensor is installed The gas flow sensor should work under the conditions that the temperature of the gas to be measured is -20~+60 °C and the relative humidity of the environment is not greater than 95%. From the viewpoint of easy maintenance, it should be installed in a place where it is easy to dismantle and replace and avoid piping vibration or piping stress. Considering the protection of the amplifier, it should be avoided as far as possible from the influence of strong thermal radiation and radioactivity. At the same time, the influence of external strong electromagnetic field on the detection coil must be avoided. If it cannot be avoided, a shielding cover should be added to the amplifier of the gas flow sensor, otherwise the interference will seriously affect the normal work of the display instrument. 2. Installation position of the gas flow sensor The gas flow sensor should be installed horizontally, and the arrow indicating the flow direction on the sensor should be consistent with the flow direction of the fluid during installation. 3. Piping points of the gas flow sensor 1. In order to remove the influence of gas eddy current and uneven flow velocity on the measurement, necessary straight sections or rectifiers should be installed at the inlet and outlet of the sensor. Generally, the straight pipe section of the upstream part (inlet) is required to be (15~20)D (D is the nominal diameter of the sensor). The downstream part (the length of the straight pipe section at the outlet is 2 to 5D), and the diameter of the straight pipe and the sensor diameter should be the same. 2. In order to remove impurities in the fluid, ensure the normal operation of the sensor, and improve the life of the sensor, a filter with a mesh number of 40-80 mesh/cm2 should be installed on the pipeline in front of the gas flow sensor. Under normal circumstances, the meshes with large diameters are sparse, and the meshes with small diameters are dense. In order to ensure the normal operation of the gas flow sensor, the mesh of the filter should also be selected according to the actual use. 3. When welding the inlet flange of the gas flow sensor, care must be taken that there is no protruding part in the pipe. When connecting the inlet flanges, the outer peripheries of the two flanges should be completely matched, and the gasket should not be exposed in the pipe. Eccentric reducers will cause uneven distribution of flow velocity, so they cannot be used. 4. In order to ensure the need for maintenance under the working diameter, a cut-off valve (stop valve) should be installed on the front and rear pipelines of the gas flow sensor, and a bypass pipeline should be installed at the same time. The flow control valve is to be installed downstream of the sensor. When the sensor is used, the load stop valve installed upstream must be fully opened to avoid turbulent flow in the upstream part of the fluid. 5. When the flow through the gas flow sensor is too large (exceeds the upper limit of the flow range), the bearing will wear faster due to the high speed. For this reason, the fluid flow can be regulated by means of a flow control valve placed in the downstream section in anticipation of excessive flow. 6. When installing a gas flow sensor on a new pipeline, in order to prevent impurities in the pipeline from entering the sensor, an empty pipe should be used to replace the sensor and run for a period of time to confirm that the impurities have been eliminated before replacing the sensor. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Detailed explanation of the location and key points of the installation of the gas flow sensor'

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