Prevention and control device and method for avoiding wrong oil unloading

Abstract

The invention discloses a prevention and control device and method for avoiding wrong oil unloading. The prevention and control device comprises a prevention and control device body, a liquid inlet and a liquid outlet are formed in the two sides of the prevention and control device body, a sealing cover plate is rotationally connected to the upper end face of the prevention and control device body, and a partition plate is arranged in the prevention and control device body. The partition plate divides the interior of the prevention and control device body into a control area and a liquid injection area, a liquid conveying pipe is arranged at the bottom of the prevention and control device body, one end of the liquid conveying pipe communicates with the liquid outlet, a first spring is arranged in the control area, and the other end of the first spring is elastically connected with a constant volume bin. The constant volume bin is elastically connected to the interior of the control area through the first spring, and the lower end face of the constant volume bin is fixedly connected with a control valve plate. The device avoid the situation that filling is difficult if an oil product is not right during oil unloading by sampling a large amount of input oil and driving a control valve to be opened and closed through density.

Description

technical field [0001] The invention relates to the technical field of supervisory devices, in particular to a prevention and control device and method for avoiding wrong oil unloading. Background technique [0002] At present, the oil products of most gas stations in my country are stored in different ground tanks, and the oil discharge ports of various oil products are concentrated in a fixed oil discharge tank. The oil in the tank is the same. When the gas station unloads the oil, the mixed oil caused by the wrong connection of the pipeline is one of the main reasons for the oil quality accidents in the gas station. In order to prevent the occurrence of the oil mixed accident, the industry has thought of many ways. It is common to distinguish the unloading ports of gasoline and diesel with female and male quick connectors respectively, and hoses with different interfaces are used to connect unloading steam and diesel. Moreover, the variety loaded in each warehouse of the ta...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a prevention and control device and method for avoiding wrong oil unloading, so as to solve the problem that the sampling volume of the existing prevention and control device in the above-mentioned background technology is small, and the data used is easily affected by the environment

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