First of all, in order to ensure the accuracy of data and achieve better measuring result, before installing some items we need to pay attention to make the installation of the flowmeter better,
1. The meter can be installed in the interior also can be installed in the outdoor, outdoor installation should pay attention to protection, prevent climate environment on flowmeter table body corrosion,
2. The level of vortex street flowmeter, vertical installation, vertical fluid when installation should be from the bottom up, in order to achieve the best measurement results,
3. The meter should avoid installed in a magnetic field is large, strong radiation, the space is lesser, maintenance is not convenient, reduce interference,
4. When the measured medium contains more impurities, should add a filter, to prevent the long time running, impurities floating on the sensor, affect the normal work flow meter,
5. Flowmeter installation location should avoid strong vibration, in the 2 d flow meters place as needed and fixtures,
6. Avoid install valve before flowmeter, if the process need, can be installed after the flowmeter,
Before 7. When the meter is equipped with the valve, as far as possible to reduce the number of valve, the pressure is too large, when the velocity is too large, the instantaneous impact can make internal sensors, irreversible damage to the triangular prism,
8 meter need enough straight pipe before and after, generally for the top 10 d, 8 d, after
9. Avoid install the meter raised very long horizontal pipeline, aerial pipelines is longer, in under the action of gravity, flange joint deformation of the flow meter, prone to become discouraged, leakage fault,
Next is our key, the installation of vortex flowmeters,
(1) the vortex street flowmeter is: to the general requirements of straight pipe before and after the first 20 D, 5 D after connected to process piping diameter (D), the general design of valve on the downstream side of the flowmeter,
(2) when the flow meter installed in the compressor, blower, the export of plunger pump, the upstream side of the meter need to install the valve, this kind of situation, to ensure the measurement accuracy of flowmeter, in addition to the length of straight pipe upstream of not less than 20 d, best can in upstream side with current limiting or buffer device, as shown in figure 1:
