Talking about the factors that affect the unqualified verification of the elbow flowmeter
2024-02-20 16:06:27
Bend pipe flowmeters and the like generally need to be tested before use, but some flowmeters have no way to pass the test during the verification process. Why? What is the reason for the failure of the bend tube flowmeter verification? Today, Xiaobian will simply talk to you.
First, the protection and maintenance of the elbow flowmeter is not professional and timely. One of the main influencing factors of the flowmeter failure is that the on-site personnel have not received professional training. The flowmeter principle and structure are not understood, resulting in the usual protection and maintenance operations not being in place, causing the flowmeter sensor to accumulate attachments due to the adhesion layer. There is a significant difference in conductivity and dielectric conductivity, which makes the appearance not working properly.
In this case, it is usually calibrated after the sensor is removed by the erasing electromagnetic flowmeter. If the operator is familiar with the characteristics of the media and the construction of the elbow flowmeter, professional protection can ensure that the flowmeter remains in normal operation.
Second, the quality of a small number of elbow flowmeters is poor. This is due to the uneven production of the flowmeter. The flow meter verification process usually finds doubts in this regard. Some companies produce excellent quality products, and they continue to use the multi-year verification and are still qualified and can be used normally. However, the technical strength of a small number of flowmeter production companies is thin, although it can produce qualified products, the same pre-qualification in the application of the pre-qualification, but the goods are not durable, resulting in the flowmeter after a period of use for verification failure.
Third, the operator's sense of responsibility is poor. The on-site handling personnel failed to timely maintain and protect the flowmeter according to the skill request, or failed to complete the disassembly device according to reasonable steps.
For example, the flow meter of the quality of the finished oil is in doubt during the verification process. After disassembling the flowmeter, it is found that the sensor's "Y" type distributor has two stones in the inlet position. After the stone is removed, the flowmeter is again checked to pass. Some operators know that the metering of the flowmeter is not accurate, but it is not repaired or adjusted. Some operators have a weak sense of responsibility, which directly affects the pass rate of the flow meter.
Fourth, the operating environment of the elbow flowmeter is poor. In some cases, the selection of the flowmeter is not suitable for the on-site working conditions, and is also constrained by the process flow and other factors, so that the time of the flowmeter device is not completely satisfied with the specification of the skill device.
For example, the measurement value of the running process of a flowmeter has a significant deviation from the measured value of the tank gauge. The orientation of the device showing the results of the sensor is close to that of the pump room. The vibration of the two pumps is severe and the stability of the sensor operation is affected. After transferring the sensor to the position away from the vibration source, the results of the recovery are normal. In addition, there are many debris in the working environment, especially the presence of sand or corrosive debris, which will increase the corrosion and wear of the bearing and the rotor, making the flowmeter more and more errors.
Http://news.chinawj.com.cn
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
First, the protection and maintenance of the elbow flowmeter is not professional and timely. One of the main influencing factors of the flowmeter failure is that the on-site personnel have not received professional training. The flowmeter principle and structure are not understood, resulting in the usual protection and maintenance operations not being in place, causing the flowmeter sensor to accumulate attachments due to the adhesion layer. There is a significant difference in conductivity and dielectric conductivity, which makes the appearance not working properly.
In this case, it is usually calibrated after the sensor is removed by the erasing electromagnetic flowmeter. If the operator is familiar with the characteristics of the media and the construction of the elbow flowmeter, professional protection can ensure that the flowmeter remains in normal operation.
Second, the quality of a small number of elbow flowmeters is poor. This is due to the uneven production of the flowmeter. The flow meter verification process usually finds doubts in this regard. Some companies produce excellent quality products, and they continue to use the multi-year verification and are still qualified and can be used normally. However, the technical strength of a small number of flowmeter production companies is thin, although it can produce qualified products, the same pre-qualification in the application of the pre-qualification, but the goods are not durable, resulting in the flowmeter after a period of use for verification failure.
Third, the operator's sense of responsibility is poor. The on-site handling personnel failed to timely maintain and protect the flowmeter according to the skill request, or failed to complete the disassembly device according to reasonable steps.
For example, the flow meter of the quality of the finished oil is in doubt during the verification process. After disassembling the flowmeter, it is found that the sensor's "Y" type distributor has two stones in the inlet position. After the stone is removed, the flowmeter is again checked to pass. Some operators know that the metering of the flowmeter is not accurate, but it is not repaired or adjusted. Some operators have a weak sense of responsibility, which directly affects the pass rate of the flow meter.
Fourth, the operating environment of the elbow flowmeter is poor. In some cases, the selection of the flowmeter is not suitable for the on-site working conditions, and is also constrained by the process flow and other factors, so that the time of the flowmeter device is not completely satisfied with the specification of the skill device.
For example, the measurement value of the running process of a flowmeter has a significant deviation from the measured value of the tank gauge. The orientation of the device showing the results of the sensor is close to that of the pump room. The vibration of the two pumps is severe and the stability of the sensor operation is affected. After transferring the sensor to the position away from the vibration source, the results of the recovery are normal. In addition, there are many debris in the working environment, especially the presence of sand or corrosive debris, which will increase the corrosion and wear of the bearing and the rotor, making the flowmeter more and more errors.
Http://news.chinawj.com.cn
Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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