Views: 0 Author: Site Editor Publish Time: 2023-06-12 Origin: Site
Orifice plate flowmeter, as a widely used instrument for liquid and gas flow measurement, has been widely used in various industries due to its reliable performance and accurate measurement data. Its structure and composition are relatively simple, but each part has its unique role, jointly ensuring the accuracy of measurement.
The orifice plate flowmeter mainly consists of several major components, including sensors, pressure pipes, condensate tanks, three valve groups, and differential pressure transmitters. Among them, the sensor is the core part of the flow meter, responsible for sensing the flow rate of the fluid; The pressure pipe transmits the pressure signal sensed by the sensor to the transmitter; The condensing tank is used to collect and condense the measured fluid; Three valve group is used to control the pressure and fluid flow in and out of the condensate tank; The differential pressure transmitter converts the received pressure signal into an electrical signal for subsequent processing and display. In a few orifice flow meters, temperature transmitters and pressure transmitters are also equipped, which are called those with temperature and pressure compensation.
The usage process of orifice flowmeter is relatively simple, but there are also some details that need to be noted. Firstly, it is necessary to ensure that the installation position is appropriate and away from areas such as pipeline bends, valves, pump stations, etc. that have a significant impact on flow. This is because these positions may affect the normal flow of fluids, thereby affecting the accuracy of measurements. Secondly, clean the installation position to ensure that there are no debris obstructing the normal operation of the device. Sundries may clog pipelines and affect fluid flow. Then, connect the orifice plate flowmeter to the pipeline, paying attention to the tightness and sealing of the connection. Flange connection or welding connection can be used. Tightness and sealing are the key to ensuring fluid leakage and measurement accuracy. In addition, checking whether all sensors and instruments are connected properly is also a necessary step. Finally, open the fluid supply valve to allow the fluid to enter the orifice flowmeter. Start the pressure sensor and electrical signal processing instrument to start flow measurement.
In actual use, users may encounter difficulties in selection and installation. Regarding the selection issue, the working condition requirements can be confirmed based on the three parameters of medium, temperature, and pressure measured on site. By meeting the requirements of these three parameters, the on-site measurement requirements can be easily solved. As for installation issues, the installation of orifice plate flow meters, like other flow meters, also needs to be based on the flow direction of the medium and the reserved space before and after, usually a installation distance of 3D in the front and 5D in the back. Within this range, it can be ensured that the fluid can fully flow through the orifice plate, thereby improving measurement accuracy.
Overall, orifice flowmeter is a flow measurement instrument with a simple structure and convenient use. As long as you follow the correct steps for installation and use, you can ensure the accuracy and reliability of measurements. I hope this article can help you better understand and use orifice flow meters.