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Gas waist flowmeter flow range

[2017-08-15]

The choice of the flow range of the gas waist flowmeter sensor directly affects its degree and service life, and it also determines the choice of the diameter of the flow sensor. The selection of the flow range is generally based on the following criteria: the smaller flow rate should be greater than or equal to the smaller flow rate that the meter can measure, and the larger flow rate should be less than or equal to the larger flow rate that the meter can measure; for occasions where the continuous operation is less than eight hours, the larger flow rate It should be about 1.3 times of the actual larger flow; for uninterrupted work for more than eight hours, the larger flow should be more than 1.4 times the actual larger flow; the smaller flow should be 0.8 times the actual smaller flow. good. The smaller the pressure loss, the smaller the energy consumption of the gas in the flow process, which can save energy, reduce transportation costs, and improve utilization. So when choosing, try to choose a turbine flow sensor with a small pressure loss. In general, a turbine flow sensor using a semi-ellipsoidal front deflector has a smaller pressure loss than a cone-shaped front deflector.

The structure of the gas waist flowmeter is determined by the above three methods: the internal structure is better to use the reverse push-type gas waist flowmeter sensor, because the structure can make the impeller float in a certain flow range, and there is no contact point in the axial direction. , No end surface friction and wear, which can prolong the service life of the bearing; For flow sensors installed in horizontal structure, it can be connected to the pipeline by flange connection, screw connection and clamp connection; For flow sensors installed in vertical structure, only Threaded connection.

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