A brief introduction to the application of level gauges in the chemical industry

1. Replace manual labor for accurate measurementThe most direct use of the liquid level meter is automatic measurement. The basic data such as liquid level and temperature are directly detected by the probe, and the volume is calculated by combining the volume table stored in the console according to the actual number of points of the carrier. As a station-side measurement tool, the liquid level meter has a stable and accurate measurement function and can obtain more accurate inventory. It brings the following benefits:1. As the liquid level gauge replaces labor, labor intensity is reduced, labor cost is also reduced, and work efficiency is improved.2. The automatic measurement of the liquid level meter can avoid data false and errors caused by human factors. It can be connected with the station-side pipe adding system, and the data can be automatically transmitted to the pipe adding system. At the same time, it can also be measured through the independent network port of the liquid level indicator The data is uploaded directly to the company.2. Safety and environmental protection (leak detection)1. Deepen the application research and development of the leak detection function of the liquid level meterMost of the storage materials in the chemical industry are harmful, and the consequences of leakage are unimaginable. The pollution has a long latency period, which causes serious harm to soil and groundwater pollution, and at the same time, treatment costs are high. With the increasing awareness of environmental protection, the chemical industry has become a key monitoring target for safety and environmental protection. Research on related leakage monitoring methods has been carried out earlier abroad to promote and guide the development of the chemical industry in the direction of health, safety and environmental protection. With the development of the domestic economy and the increase of chemical plants, the probability of leakage in some small factories has increased year by year. The risk of leakage and pollution is a thorny issue that has to be faced.The liquid level meter is easy to operate and has high measurement accuracy. Using this feature to develop the leakage monitoring function of the liquid level meter can solve the problem of leakage monitoring in the chemical industry at this stage. As an efficient, simple and reliable leakage monitoring method, liquid level meter leakage detection will play an important role in the safety management and environmental protection of the chemical industry.In developed countries abroad, the use of liquid level gauges for leak detection has become one of the main methods of safety and environmental management in the chemical industry.2. Leak detection principle of liquid level gaugeWhen there is a leakage point in the carrier, the liquid level in the carrier will change. The level meter system detects the height change of the liquid level in the carrier through the float, and converts it into the volume change through the volume table of the carrier. The volume expansion coefficient of the medium is used to calculate the standard Volume, exclude the influence of temperature changes on the liquid volume, so as to calculate the current leakage rate of the carrier, and compare it with the set leakage test standard to judge the current leakage state of the carrier.Three, smart applicationsDomestic chemical companies will inevitably produce deformation, settlement, tilt and other phenomena during the transportation process, so that there is a certain error between the carrier volume table and the time of delivery. The inaccuracy of the carrier volume meter has always been a problem for chemical companies, especially after the oil company began to adopt the earth tank handover, this problem has become more prominent, because an accurate volume meter is the basis of the level gauge and all measurement management. At present, there are two methods commonly used to calibrate volume meters, namely manual measurement verification by the measurement department, and semi-automatic verification provided by a third-party service company with automatic flow meters and level meters.With reference to foreign experience, the use of liquid level gauges to realize automatic calibration of volume meters will be an important function and trend in the future development of liquid level gauges.


Post time: 21-09-21