Wedge flow meterIt is a new type of throttling differential pressure flow measurement instrument that can perform high-precision flow measurement in fluid conditions with high viscosity and low Reynolds number (Reynolds number>500 can be used); It has the advantage and irreplaceable role in flow measurement with low flow rate, small flow rate, and large pipe diameter. Therefore, how to install the wedge flowmeter correctly and quickly? What are the precautions?

　　

1. Generally, wedge-shaped flow is equipped with front and rear measuring tubes, which can be installed and used horizontally or vertically. When the sensor is installed on a vertical pipeline, the fluid should flow from top to bottom. When measuring liquids, attention should be paid to ensuring that the differential pressure transmitter can flip over to eliminate bubbles, in order to avoid zero drift of the instrument;

　　

2. The upstream and downstream sides of the sensor should be equipped with straight pipe sections, and the inner wall of the pipeline should be smooth, clean, and free of attachments;

　　

3. When installed horizontally, the wedge differential pressure element should be at a 90 degree angle to the centerline of the pipeline. For vertical installation, due to the slight static pressure effect between the pressure points, it is necessary to pay attention to the zero adjustment of the differential pressure transmitter.

　　

　　Precautions for installation of wedge flowmeter:

　　

1. Installation should ensure smooth and direct fluid flow. It is advisable to avoid installing flow meters near regulating valves and semi open valves as much as possible.

　　

2. Newly installed or repaired pipelines should be cleaned before operation to flush out rust, scale residue, and sludge inside the pipes.

　　

3. The installation location should be chosen in a place with low vibration and impact, or vibration reduction measures should be taken.

　　

4. When installing the flowmeter, the inner diameter of the sealing gasket must be larger than the inner diameter of the pipeline to prevent interference with the pipeline fluid.

　　

5. For vertical installation, due to slight static thermal effects, it is necessary to pay attention to transmitter zeroing.

　　

The wedge flowmeter has a simple and reliable structure, no movable or vulnerable parts, good wear resistance, and high operating accuracy. The basic error of the flow coefficient of the calibrated flowmeter is within ± 0.5%. In addition, the detection method of wedge-shaped flowmeter+double flange transmitter eliminates the laying of pressure pipes, thereby saving the laying of heat tracing sources and the consumption of heat tracing steam. The pressure interface of the flowmeter can be insulated as a whole with the body and process pipeline, ensuring the anti freezing measures of the wedge-shaped flowmeter in winter through the heat source of the fluid itself, saving the steam energy consumption and condensate discharge of the device, and improving the overall energy consumption of the device.