Mobile detection device for refueling machine

Abstract

The invention relates to a mobile detection device for a refueling machine. A metal container liner of a standard metal measuring container consists of an upper cone, a lower cone and a cylinder. A fuel delivery pipeline and a metering neck are arranged on the metal standard measuring container. A return air releasing pipe is connected between a refueling port of the fuel delivery pipeline and the metering neck. Another return air releasing pipe is arranged on the metering neck. A three-way switching valve is an inverted Y-shaped three-way valve. A special operating vehicle enters a spot check detection state by switching the inverted Y-shaped three-way valve to the standard metal measuring container. When a refueling gun injects a fuel into the standard metal measuring container through the refueling port, a matched data acquisition box transmits the liquid level and the temperature of the fuel in the standard metal measuring container and the temperature of the refueling port to a computer in real time through an RS232 communication interface, so as to compensate metal measuring container volume changes caused by environmental changes, correct an indicating value for liquid level measurement, convert a measured liquid level result into a volume value, and simultaneously calculate an error of comparison with the refueling machine.

Description

technical field [0001] The invention relates to a fuel dispenser verification device, in particular to a mobile fuel dispenser verification device. Background technique [0002] As an international metropolis, Shanghai's increasing number of vehicles has brought about a sharp increase in the number of gas stations in the urban area. Especially in recent years, as the price of fuel oil continues to rise, unscrupulous merchants at some gas stations often cheat consumers during the refueling process and obtain illegal profits. Therefore, the measurement supervision of gas stations has increasingly become the focus of work of the measurement administrative departments of governments at all levels. In order to maintain social stability and harmony, ensure the normal supply of the refined oil retail market, protect the legitimate rights and interests of consumers, strengthen the technical capabilities of gas station measurement and on-site supervision and random inspection, and e...

AI Technical Summary

Problems solved by technology

In the actual operation process, due to the narrow space and dim light in the compartment, lighting tools must be used to complete data sampling, and it is not easy to quickly judge the test results when collecting evidence on the spot;

[0007] (3) Standard metal gauges can only be designed in the shape of a rectangular parallelepiped due to the constraints of the vehicle structure

During the test, it was found that because the fluid channel is close to a right angle, when the flow rate is slightly larger, a certain resistance is formed to the flow of the fluid, causing the liquid to overflow

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