Gas Turbine Flow Meter is a new type of smart meter integrated with integrated display and calculation using advanced ultra-low-power single-chip microcomputer technology. The product has the advantages of compact structure, clear and intuitive reading, and high reliability.
How to buy:
How to buy:
First, the accuracy level. Turbine flow sensors generally have higher accuracy levels. In general, the higher the accuracy, the more sensitive the field environment is. From the economic benefits above, do not blindly pursue a high level of accuracy. For large-diameter flow applications, such as the West-East Gas Pipeline project, high-precision sensors must be selected, and for the occasion where the delivery volume is small and metering is required, general turbine flow sensors can be selected.
Second, gas density. The stability of the gas density has a great influence on the measurement accuracy of the turbine flow sensor. For applications where the density is often changed, the flow coefficient needs to be modified in a way that is particularly suitable for low flow areas.
Third, the flow range. The choice of the flow range of the turbine flow sensor directly affects its accuracy and useful life, and it also determines the choice of flow sensor aperture. Select the flow range generally in accordance with the following guidelines: Minimum flow should be greater than or equal to the instrument can measure the minimum flow, the maximum flow should be less than equal to the meter can measure the maximum flow; For uninterrupted work is less than eight hours, the maximum flow should be the actual maximum flow About 1.3 times of the time; For the occasion of uninterrupted work more than eight hours, the maximum flow rate should be more than 1.4 times the actual maximum flow rate; the minimum flow rate should be 0.8 times the actual minimum flow rate is the best.
Fourth, pressure loss. The smaller the pressure loss, the smaller the energy consumption of the gas in the process of flow, which can save energy, reduce transportation costs, and improve utilization. So when choosing, try to choose a turbine flow sensor with low pressure loss. In general, the turbine flow sensor using the semi-ellipsoidal front deflector has less pressure loss than the turbine flow sensor of the cone's front deflector.
Fifth, the structure. The structure is determined by the above three methods: The internal structure is best to use the reverse-pushing turbine flow sensor, because the structure can make the impeller in a floating state in a certain flow range, there is no contact point in the axial direction, no end surface friction and wear, Extend the service life of the bearing; For the flow sensor installed in the horizontal structure, it can be connected to the pipeline by flange connection, screw connection, and clamp connection; for the vertical structure, the flow sensor can only be connected by thread.
The correct choice of gas turbine flow sensor not only relates to the accuracy of gas metering, but also extends the life of the sensor and saves maintenance costs.
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