At present, the company's production water consumption is measured by the installation of electromagnetic flowmeters or fixed ultrasonic flowmeters on the spot by local water conservancy bureaus. The company is constantly staring at corporate water to protect the use of public resources and eliminate waste.

  After the fixed electromagnetic flowmeter or fixed ultrasonic flowmeter is installed, the relevant data collectors of the Water Conservancy Bureau only need to read meter data every time, or read data directly from the office by remote data transmission. The daily maintenance can be done well, but after the field instrument is used for a period of time, is accuracy accurate? Whether there is zero drift or other scenes. Most agencies do not know or have relevant expertise.

Recently, the Water Resources Bureau of a certain city in Jiangsu province, from the perspective of improving work efficiency and improving scientific enforcement, has carried out one-on-one inspections on numerous users and enterprises in the area, preventing water resources from being wasted and allowing companies to bear costs that should not be borne. With how much resources are used, how much it will cost, and those who have questions about the relevant testing instruments, do not rely on experience to estimate the data, so that the use units and the water conservancy law enforcement personnel feel very happy.

From the data of the relevant technical personnel on-site feedback, it was measured by a portable ultrasonic flowmeter imported from Germany flexim and compared with the field instrument. Draw conclusions:

1, since 2012 the installation of electromagnetic flowmeters and fixed ultrasonic flowmeter accuracy are high, whether imported or domestically produced, the detection effect is relatively satisfactory. For electromagnetic flowmeters and ultrasonic flowmeters installed in the early years, 80% accuracy is also acceptable. 20% of the instrumental deviations are relatively large, and some readings are too small. This wastes water resources, and some readings are too large. There is a situation where there is more money for the water used by oneself. Relevant personnel of the Water Conservancy Bureau gave prompt corrections or solutions to the problems found, and were well received by the company.

2. Some on-line detection flowmeters have the problem of incorrect parameter settings. For example, the actual pipeline at the site is DN100mm , but the instrument is set to DN80 . Do not underestimate this mistake. This causes the data measured by the instrument to be more accurate than the original. The actual measurement data is nearly 50% smaller . In view of this situation, the relevant staff of the Water Conservancy Bureau stated that in the future installation and setting of instruments and instruments, questions, decisions, and opinions should be eliminated. We must test the data on the ground and use scientific methods to produce scientific results. This is responsible for public resources and is also responsible to the company!