Shandong plug-in flowmeter manufacturer

Shandong plug-in flowmeter manufacturerFlow measurement is one of the components of measurement science and technology, which is closely related to the national economy, national defense construction, and scientific research. Doing this job well plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology, especially in today's era of energy crisis and increasing industrial production automation. The position and role of flow meters in the national economy are even more prominent.

The commonly used unit in engineering is m3/h, which can be divided into instantaneous flow rate (Flow Rate) and cumulative flow rate (Total Flow). Instantaneous flow rate refers to the amount of effective cross-section that passes through a closed pipeline or open channel per unit time, and the substances flowing through can be gas, liquid, or solid; Accumulated flow refers to the cumulative amount of fluid flowing through the effective cross-section of a closed pipeline or open channel during a certain time interval (one day, one week, one month, one year). The cumulative flow can also be obtained by integrating the instantaneous flow rate with time, so the instantaneous flow meter and the cumulative flow meter can also be converted into each other.

Shandong plug-in flowmeter manufacturerFlow measurement is widely used in various fields such as industrial and agricultural production, national defense construction, scientific research, foreign trade, and people's daily lives. In the production of the petroleum industry, flow measurement runs through the entire process from oil extraction, transportation, refining and processing to trade and sales. Any link cannot be separated from flow measurement, otherwise the normal production and trade exchanges of the petroleum industry cannot be guaranteed. In the chemical industry, inaccurate flow measurement can cause an imbalance in the distribution ratio of chemical components, which cannot guarantee product quality and can even lead to production safety accidents. In the production of the power industry, the measurement and regulation of the flow rate of liquids, gases, steam and other media play an important role. The accuracy of flow meters not only has great economic significance for ensuring the operation of power plants under parameters, but also has become an important link in ensuring the safe operation of power plants with the development of high temperature, high pressure, and large capacity units. If the instantaneous feedwater flow of a large capacity boiler is interrupted or reduced, it may cause serious dry boiler or pipe burst accidents. This requires flow measurement devices to not only accurately measure, but also to promptly issue alarm signals. In the steel industry production, the flow measurement of circulating water and oxygen (or air) during the steelmaking process is one of the important parameters to ensure product quality. In industries such as light industry, food, and textiles, flow measurement is also indispensable.

The commonly used transducers are external clip on and plug-in. The structure of monaural ultrasonic flowmeter is simple and easy to use, but this flowmeter has poor adaptability to changes in flow distribution. The rapid development of microelectronics and computer technology has promoted the upgrading of instruments, and new types of flowmeters have emerged like mushrooms after rain. So far, it is reported that hundreds of flow meters have been put into the market, and many difficult problems in on-site use are expected to be solved. The development of modern flow measurement technology in China was relatively late, and it was set at the upstream end of the measurement flow channel 6 relative to the holes 11 and 12 to reduce the flow of the measured fluid into the holes 11 and 12; Measurement control component 19 is used to measure the propagation time of ultrasonic waves between ultrasonic transducers 8 and 9; And the calculation component 20 is used to calculate the flow rate based on the signal from the measurement control component 19.

Flow meters should avoid ferromagnetic objects and equipment with strong electromagnetic fields (such as large motors, transformers, etc.) as much as possible to prevent the magnetic field from affecting the working magnetic field and flow signal of the sensor. The flow signal line and excitation line between the sensor spoon converter. However, based on the analysis of damaged components caused by lightning faults, most of the induced high voltage and surge current that caused the fault were introduced from the power supply lines in the control room, and the other two pathways were relatively few. Due to the fact that electromagnetic flow meters have a much higher chance of measuring suspended solids or pollutants compared to other flow meters, the probability of failure caused by the adhesion layer on the inner wall is relatively high. If the conductivity of the adhesion layer is similar to that of the liquid. Common debugging failures are usually caused by improper installation.