Jiangyin flowmeter | How to install and use the flowmeter correctly?

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1. How to use a flowmeter to adjust flow rate

1. A simple flowmeter cannot adjust flow rate because it does not have an actuator.

2、 Automatic flow control can be achieved through three components: flow meter, PID regulator, and regulating valve.

3、 Enter the desired flow rate value and the old value on the PID controller. The PID controller only controls the opening of the regulating valve to adjust the flow rate. The real-time flow signal detected by the flowmeter is fed back to the PID controller through rolling training. The three form a closed-loop control loop to achieve accurate control.

2. How much does a thermal mass flowmeter cost?

3. How to correctly install and use a flowmeter? Choosing the correct installation point and installing the flow meter correctly are both very important steps. If there are errors in the installation process, it can affect the measurement accuracy, and in severe cases, it can affect the service life of the sensor and even damage the flow meter. Considering the convenience of installation and disassembly, a pipeline expansion joint can be installed after the flowmeter. The requirements and characteristics for the installation of flow meters on straight pipe sections should be noted. If a valve is installed near the upstream of the flow meter installation point, constantly opening and closing the valve will have a great impact on the service life of the flow meter and can easily cause permanent damage to the flow meter. During the day, it is recommended to avoid installing the flow meter on a very long pipeline that is empty. Over time, the sagging of the flow meter can easily cause sealing leakage between the flow meter and the flange. If installation is necessary, pipeline fastening devices must be installed at 2D positions upstream and downstream of the flow meter. Requirements for piping: The flowmeter has certain requirements for the upstream and downstream straight pipe sections of the installation point, otherwise it will affect the measurement accuracy. The inner diameter of the upstream and downstream piping of the flowmeter installation point should be the same as the inner diameter of the sensor, and it should meet the requirements of the following formula. In the 0.98DN ≤ D ≤ 1.05DN formula: DN - flowmeter diameter D - inner diameter of piping. The piping should be concentric with the flowmeter, and the coaxial diameter should not exceed 0.05DN. The sealing gasket between the flowmeter and the flange cannot protrude into the pipeline, and its inner diameter can be slightly larger than that of the flowmeter. The requirement for the bypass pipe is to facilitate the maintenance of the flowmeter, and it is best to install a bypass pipe for the flowmeter. In addition, when the fluid in the pipeline that needs to be cleaned or the pipeline where the flowmeter is installed cannot be stopped for maintenance of the flowmeter, it must be installed in the bypass pipe, and the requirements for pipeline vibration of the front and rear straight pipe sections of the flowmeter must be ensured: the flowmeter should be avoided from being installed on pipelines with strong vibration as much as possible. If it is necessary to install it, vibration reduction measures must be taken, and pipeline fastening devices should be installed at 2D upstream and downstream of the flowmeter, and anti vibration pads should be added. Special attention: The vibration at the out

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