Talking about the maintenance method of sewage flow meter in daily use

Abstract: Talking about and analyzing the maintenance method information of sewage flow meter in daily use is provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. Talking about and analyzing the maintenance method of sewage flow meter in daily use Flow meter is one of the major types of instruments in process automation instruments and devices. It is widely used in metallurgy, electric power, coal, chemical industry, petroleum, transportation, construction, light textile, food, medicine, . More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is a brief introduction to the analysis of the maintenance methods of sewage flowmeters in daily use. Talking about and analyzing the maintenance method of sewage flow meter in daily use Flow meter is one of the major types of instruments in process automation instruments and devices. It is widely used in metallurgy, electric power, coal, chemical industry, petroleum, transportation, construction, light textile, Food, medicine, agriculture, environmental protection and people's daily life and other fields of the national economy are important tools for developing industrial and agricultural production, saving energy, improving product quality, and improving economic efficiency and management level, occupying an important position in the national economy. But users must also pay attention to what aspects need to be paid attention to in daily maintenance? 1: Manual zero adjustment method: refers to the manual zero adjustment of the differential pressure transmitter with a multimeter. This method can be used when the zero point of the differential pressure transmitter has a slight drift. The method is as follows: There is a positive pressure on the differential pressure transmitter. , Negative two signal lines, remove one of them, adjust the multimeter to the 4-20mA DC gear, connect the multimeter in series, the differential pressure transmitter has a zero adjustment screw (the one marked with zero is the zero adjustment button). Clockwise debugging, the current increases, counterclockwise decreases, when the multimeter displays 4mA, it means that the zero point is adjusted at this time. 2: Valve switching sequence during condensation (mainly for steam): During normal operation, the middle valve of the three-valve group is closed, and the valves on both sides are open. If sewage or re-condensation is required, first close the two valves, and then open the middle valve. Finally, open the root blowdown valve for blowdown. If the condensation is complete, you want to close the middle valve, and then slowly open the valves on both sides, so that the system is in normal operation. 3: When the measuring medium is steam, the on-line zero adjustment should be carried out, because the condensing pan may have a little height difference during installation. When the flow rate of the measuring fluid is small, the height difference has a great influence on the flow. (1 cm water column is 100Pa) Maintenance method: 1. The probe of the vortex flowmeter should be cleaned regularly. During the inspection, it was found that the detection holes of individual probes have been blocked by dirt, or even wrapped in plastic cloth, which affects the normal measurement. 2. Since the determination of the K coefficient is very important in the whole process of the vortex street, the accuracy of the K coefficient directly affects the accuracy of the loop, and the replacement of instrument parts and the wear of the process pipeline may all affect the K coefficient. However, Dongfang Chemical Plant lacks the means and ability for calibration, so it can only send out the calibration. Affected by the operation of the process, it takes 5 or 6 days to remove the vortex street from the pipeline and send out the calibration time. K factor. This year, through the transformation of the flow meter room, although the calibration conditions for vortex streets with smaller diameters have been met, they are still powerless for larger diameter vortex streets. In the future, attention should be paid to the on-site calibration method of vortex streets, using standard frequencies and portable ultrasonic waves. Flowmeter, measure the instantaneous flow in the pipeline and the pulse output frequency of the sensor, calculate the K coefficient on site 3, install the probe with a humid environment. It should be dried once regularly, or treated with moisture-proof. Since the probe itself is not treated with moisture, it will affect the operation after being affected by moisture. 4. Regularly check the grounding and shielding to eliminate external interference. Sometimes the indication problem is due to interference. 5. The management of instrument data should be paid enough attention to facilitate future work. Keywords: sewage flowmeter, Fujian sewage flowmeter, Fujian electromagnetic flowmeter, sewage treatment flowmeter, water measuring flowmeter, split electromagnetic flowmeter, large-diameter electromagnetic flowmeter The above is the entire content of this article, you are welcome to inquire our manufacturer Flowmeter selection, quotation, etc. 'A Brief Discussion on the Maintenance Methods of Analysis of Sewage Flow Meters in Daily Use'

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