At present, the measurement of production water of enterprises is mostly the on-site installation of electromagnetic flowmeters or fixed ultrasonic flowmeters by local water conservancy bureaus as the measurement eyes, and they always keep an eye on the water used by enterprises to protect the use of public resources and eliminate waste.
After the installation of the fixed electromagnetic flowmeter or the fixed ultrasonic flowmeter, the relevant data collection personnel of the Water Conservancy Bureau only need to read the meter data each time, or read it directly at the office site through remote data transmission. Whether there is zero drift and other on-site occurrences. Most institutions do not know or have the knowledge.
Recently, the water conservancy bureau of a city in Jiangsu Province, from the perspective of improving work efficiency and improving scientific ---, has inspected many user enterprises in the jurisdiction one by one, so as not to let water resources be wasted, and not to let enterprises bear the costs that should not be borne by enterprises, how many resources to use, how much to pay, and if there are doubts about the relevant testing instruments, they do not estimate the data based on experience, so that the user unit and water conservancy ---personnel feel very happy.
Judging from the data fed back from the relevant --- field, it was measured by using a portable ultrasonic flowmeter imported by Fujifilm and compared with the field instrument. Here are the conclusions:
1. Since 2012, the electromagnetic flowmeter and the fixed ultrasonic flowmeter installed have a relatively high ---, whether imported or domestic, and the detection effect is relatively satisfactory. For the electromagnetic flowmeter and ultrasonic flowmeter installed in the early years, 80% of the accuracy is OK, 20% of the meter deviation is large, some readings are small, so that there is a waste of water resources, and some readings are large, so that enterprises have to pay more for their own water resources. The --- of the water conservancy bureau has given timely corrections or solutions to the problems found, which have been unanimously ---。
2. Some online detection flow meters have the problem of incorrect parameter settings, for example: the actual pipeline on site is DN100mm, but the meter is set to DN80, do not underestimate this mistake, which causes the error of the data measured by the meter to be nearly 50% smaller than the original actual measurement data. In response to such a situation, the --- of the Water Conservancy Bureau said that in the future installation and setting of instruments and meters, it is necessary to put an end to asking, cutting and looking. We must test the data on the spot and use scientific methods to get scientific results, which is responsible for public resources and enterprises! The performance of Fujifilm portable flowmeters was highly recognized.
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