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| Installation points of cone flowmeter |
| 2011-8-9 15:11:13 |
Installation points of cone flowmeter
Because the conical flowmeter can change the velocity curve, the flowmeter has less requirements for the upstream and downstream straight pipe sections. Generally, for pipeline flange connection, no straight pipe section is required, and for direct plug-in type, it is required.
流量计 具有流线体边界层效应，是因为其独特的流线椎体节流，使赃物流体不会磨损节流边缘，其β值可以保证长期不变，整个仪表没有可动部件，因此不需要重复标定，具有长期稳定性。 The conical flowmeter has a streamlined boundary layer effect, because its unique streamlined vertebral body throttling prevents the stolen fluid from abrading the throttling edge, and its β value can be guaranteed to remain unchanged for a long time. The entire instrument has no moving parts. Therefore, no recalibration is required, and it has long-term stability.
流量计 是将一锥形节流件悬挂在管道中心处，锥形件阻碍着介质流动，使得重塑流速曲线，在锥形型的下游可以立即形成低压区。 The conical flow meter is a cone-shaped throttle piece suspended at the center of the pipe. The cone-shaped piece hinders the flow of the medium, so that the flow velocity curve is reshaped, and a low-pressure region can be formed immediately downstream of the cone. There is a differential pressure between the positive pressure on the upstream of the pipe and the negative pressure on the downstream after throttling by the throttling member. Take the positive and negative pressure out through the pressure taking port. mouth. By measuring the differential pressure between them, the flow rate in the pipeline can be calculated according to the principle equation. The vertebral body is located in the center of the pipeline, which can optimize the flow velocity curve of the measured medium, so the measurement accuracy is high, and the straight pipe sections upstream and downstream of the instrument have low requirements.