Intelligent gun removal detection device and detection method

Abstract

The invention discloses an intelligent gun disengagement detection device and detection method and belongs to the field of fuel filling equipment. The intelligent gun disengagement detection device comprises a detection body which is provided with a detection hole. An excitation ring and a detection ring are arranged in the position of the detection hole and connected with a control circuit respectively. The intelligent gun disengagement detection device and detection method are mainly used for solving the technical problem that disengagement (or break-off or disengagement of the gun or break-off of any part of a filling pipe) of a filling gun from a car can not be monitored. By means of the detection method with the excitation ring and the detection ring included, whether the gun disengages or not is detected by detecting whether the filling gun can generate pulse current, and it can be effectively detected once the filling gun of the filling equipment disengages (or the gun is pulled apart or disengages or any part of the filling pipe breaks off) from the car, so that the detection precision is greatly improved and filling security is ensured.

Description

technical field [0001] The invention relates to the field of fuel filling, in particular to a device for monitoring the falling off of a filling gun. Background technique [0002] At present, fuel filling equipment such as fuel dispensers, CNG filling machines, and LNG filling machines have been widely used; due to the flammable and explosive characteristics of gasoline, diesel, CNG, and LNG, the The environment is relatively dangerous, so the requirements for filling equipment and filling guns are particularly high. It is commonly used to set a breakaway valve on the filling hose to avoid fuel leakage caused by the vehicle pulling the hose, but the breakaway valve is only It can only be broken when it is subjected to a certain pulling force, so as to play a protective role. If the gun is not pulled off by the force of the break-off valve, or the gun tip falls off from the car due to wear and tear, it cannot play a protective role. Protection methods are very limited. Con...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an intelligent gun removal detection device and detection method for the above-mentioned problems, mainly to solve the problem that the filling gun cannot be disconnected from the car (breaking, taking off the gun, disconnecting any part of the filling pipe). The technical problem of monitoring is to detect whether the filling gun can generate a pulse current by using the detection method of the excitation ring and the detection ring to detect whether the gun is off. As long as the filling gun of the filling equipment is detached from the car Any part of the filling pipe is disconnected) can be effectively detected, thus greatly improving the detection accuracy and ensuring the safety of filling

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