Oil level potential monitoring and interlocking control system

Abstract

The invention discloses an oil level potential monitoring and interlocking control system in the oil product loading and unloading processes, and specifically relates to the field of petrochemical engineering oil product storage and transportation. The oil level potential monitoring and interlocking control system overcomes the defects that static electricity is increased in the loading and unloading processes for finished oil, and safety accidents are easily caused. The oil level potential monitoring and interlocking control system comprises an oil feeding control unit, an oil level potentialtesting unit and an oil feeding control valve, wherein the oil level potential testing unit, an electrostatic grounding detection unit and the oil feeding control valve are all in electric control connection with the oil feeding control unit, the oil feeding control valve is installed on an oil feeding pipeline, and the oil level potential testing unit is installed at the center of the top of a storage tank. The oil level potential testing unit comprises an electric field sensing module, an ultrasonic distance measuring module and a data processing module, corresponding probes point to the liquid level in the storage tank from the top of the storage tank after the electric field sensing module and the ultrasonic distance measuring module are sealed through glue, the electric field sensingmodule and the ultrasonic distance measuring module are integrated and then connected with the data processing module, and the data processing module is connected with the oil feeding control unit.

Description

technical field [0001] The invention relates to the field of storage and transportation of petrochemical oil products, and specifically discloses an oil surface potential monitoring and interlocking control system in the process of loading and unloading oil products. Background technique [0002] During the loading and unloading process of refined oil products, oil products flow through filters, pipelines, etc., which are easily electrified due to oil flow, splashing, and even dangerous electrostatic discharges. The 2006 "General Guidelines for the Prevention of Electrostatic Accidents" and GB 13348-2009 "Static Regulations for the Safety of Liquid Petroleum Products" and other standards stipulate the control of oil flow rate and oil conductivity. However, due to the many factors affecting the static electricity of oil products during the loading process, such as the asynchronous end of fuel ethanol and component oil when ethanol gasoline is loaded, the static electricity of...

AI Technical Summary

Problems solved by technology

However, the current oil level potential detection method, such as the oil level potential test system disclosed by the Chinese patent CN 202848438U with EST202 oil level potential measurement system, is not suitable for on-line monitoring because of the floating ball floating on the oil level, and is difficult to use. Real-time monitoring of oil level for abnormal changes in oil electrification

Based on the dynamic monitoring of oil surface potential and used to control the static electricity in the process of oil loading and unloading, there are no reports on related system equipment

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