Tank car comprehensive measurement system and method capable of judging leakage

Abstract

The invention relates to a tank car comprehensive measurement system and method capable of judging leakage. The system comprises: a basic parameter measurement module which is used for obtaining the temperature information, pressure information, liquid level, density and leakage alarm information of liquid in a tank car; a GPS measurement module used for acquiring tank car positioning information; an attitude sensing module used for acquiring vehicle running state information; a comprehensive parameter processing module used for analyzing and processing the acquired multi-parameter information according to a comprehensive sensor data processing operation mode; and a background server used for displaying the data processed by the comprehensive parameter processing module and judging whether to give an alarm or not according to the liquid leakage alarm information. Therefore, the basic parameter measurement module is introduced while the basic GPS and the attitude sensor are applied, comprehensive parameters of liquid level monitoring can be improved, and key parameter data such as the liquid level, the temperature, the pressure, the density and tank leakage alarm information of dangerous chemical liquid can be measured in a high-precision mode.

Description

[0001] This application is a divisional application of a patent application titled "An Integrated Measurement System for Tank Trucks with Efficient Leakage Judgment". The original application date was July 21, 2016, and the application number is 201610579357.9. technical field [0002] The invention relates to the field of tank car safety monitoring and measurement, in particular to a comprehensive measurement system and method for multi-parameter high-precision measurement. Background technique [0003] Hazardous chemical liquids are liquid products, raw materials or semi-finished products in the chemical industry, such as liquefied petroleum gas, liquid chlorine, liquid vinyl chloride, liquid ethylene, liquid propylene, liquid ammonia, liquid hydrogen, liquid nitrogen, liquid oxygen, hydrogen sulfide, hydrochloric acid, nitric acid , ethanol, methanol, gasoline, diesel, aviation kerosene, etc. These liquids are often toxic, corrosive, flammable and explosive, easy to pollut...

AI Technical Summary

Problems solved by technology

On the one hand, since the differential pressure liquid level measurement module is related to the density of the measured medium when measuring the liquid level, this makes it difficult to measure when measuring impure media (such as diesel oil, different manufacturers have different purity, resulting in different densities) , the density will have a great impact on the accuracy of the liquid level measurement results; on the other hand, since the differential pressure liquid level measurement module is related to the acceleration of gravity g when measuring the liquid level, when the dangerous chemical liquid is in the process of transportation, the geographical location changes Will lead to changes in g, changes in g will cause liquid level measurement errors

In addition, the differential pressure liquid level measurement module cannot measure the density of the measured medium. If you want to measure the density of the medium, you need to use a sensor specially designed to measure the density; the temperature of the dangerous chemical liquid is also an important parameter, and the traditional solution also needs to be used separately. Temperature sensor; tank leakage alarm monitoring is of great significance to the safety of dangerous chemical liquid transportation and storage. Traditional solutions also need to use special sensors for tank leakage alarm monitoring

Therefore, to measure the multi-parameters of mobile tankers used in the measurement of dangerous chemical liquids, the traditional scheme has poor measurement accuracy and a large number of sensors, which will also bring disadvantages such as complicated installation and increased cost. At present, there is no high-precision, simultaneous An integrated measuring device for measuring key parameters such as liquid level, temperature, pressure, density, and tank leakage alarm information of dangerous chemical liquids, and a multi-parameter high-precision comprehensive measuring system and method combined with attitude, GPS and other information

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