Maintenance knowledge of turbine flowmeter sensors
是一种精密流量测量仪表，与相应的流量积算仪表配套可用于测量液体的流量和总量。 Turbine flowmeter is a precision flow measuring instrument. It can be used to measure the flow and total amount of liquid when it is matched with the corresponding flow totalizing instrument. It is widely used in the measurement and control systems of petroleum, chemical industry, metallurgy, scientific research and other fields. Turbine flow sensors equipped with sanitary joints can be used in the pharmaceutical and food industries. Intelligent integrated turbine flowmeter structure is explosion-proof design, which can display the total flow, instantaneous flow and percentage of full flow. The battery uses a long-lasting lithium battery. The service life of the single-function accumulator battery can reach more than 5 years, and the service life of the multi-function indicator battery can reach more than 12 months. The intelligent integrated meter can display a large number of flow units, including cubic meters, gallons, liters, standard cubic meters, standard liters, etc. You can set fixed pressure and temperature parameters to compensate for gas, and small changes in pressure and temperature In this case, the flowmeter can be used for fixed compensation accumulation.
传感器部分的维护保养要注意以下几点： The maintenance of the turbine flowmeter sensor part should pay attention to the following points:
1. During use, the measured medium should be kept clean and free of impurities such as fibers and particles. 2. When the turbine flow sensor is used, the sensor should be filled with medium slowly before opening the outlet valve (the valve should be installed at the back of the flow meter). It is strictly prohibited that the sensor is impacted by high-speed fluid when it is in a medium-free state. 3. The maintenance period of the turbine flow sensor is generally half a year. When cleaning, please be careful not to damage the parts in the measuring cavity, especially the impeller. Please pay attention to the positional relationship between the guide and the impeller during assembly. 4. When the turbine flow sensor is not in use, the internal medium should be cleaned. After drying, add protective sleeves on both ends of the sensor to prevent dust from entering, and then store it in a dry place. 5. The matched filter should be cleaned regularly, and the internal media should be cleaned when not in use. Like the sensor, add a dust cover and store it in a dry place. 6. Before the sensor is installed, blow the mouthpiece or dial the impeller to make it rotate quickly to observe whether there is display, and then install the sensor when there is a display. If there is no display, you should check the relevant parts and troubleshoot
的装置状况对其丈量精确度的影响是很大，因而在装置的过程中要严厉装置请求去操作，以免形成精确度的误差影响工作质量。 Impact of the condition of the turbine flowmeter device on its measurement accuracy Generally, the condition of the device of the turbine flowmeter has a great impact on its measurement accuracy. Therefore, during the installation process, the device must be severely requested to operate to avoid the formation of accuracy. Errors affect the quality of work.
1. In industrial measurement, the straight pipe length of the upstream 20D and downstream 5D of the turbine flowmeter is usually requested, so as to ensure the completion of accuracy. At the same time, installing a rectifier at the upstream end can eliminate the problems of uneven flow velocity distribution and secondary activities, so that the measurement accuracy can reach the accuracy level of calibration. 2. If necessary, an aerator should be installed upstream of the flowmeter. Regarding liquids that are easily vaporized, a certain back pressure must be guaranteed downstream. This will prevent air or vapor from entering the flowmeter, thus ensuring that the liquid passing through the flowmeter is single-phase. 3. It is best to install a filter in front of the flowmeter. A funnel-type filter can be used to ensure its own cleanliness. It can be obtained by measuring the difference in pressure between the two ends.
The above is the request during the piping of the device, and it also deals with the problems that affect the accuracy of the measurement. I hope to help everyone.