Explosion-proof detection control method for combustible liquid level

Abstract

The invention discloses an explosion-proof detection control method for combustible liquid level. The method comprises the following steps that: the change of the combustible liquid level is converted into optical signals through an optical fiber detection probe; the optical signals are transmitted from an optical fiber transmission system to a photoelectric conversion system far away from a detected oil gas compact district, which is used for real-time detection and control of the combustible and explosive liquid levels; electric signals for executing twice are transmitted to an external executing mechanism through the photoelectric conversion system; the external executing mechanism can be directly connected with a valve for control or connected with a computer to realize positioned filling; and when oil level is detected, the system sends speech alarm prompt out. The method can detect and control the condition of the liquid level in real time, and overcome potential safety hazard caused by the direct contact of conventional electronic parts and cables with oils, so that detection and control of the liquid level are safe, reliable and accurate. The photoelectric converter of theinvention is arranged in the compact district far away from the oil gas; due to cable transmission, not only detection speed is improved, but also potential safety hazard of detection caused by the introduction of a tanker by cables is radically avoided.

Description

technical field [0001] The invention relates to the technical field of liquid level detection, in particular to an explosion-proof detection and control method for flammable liquid levels suitable for petrochemical enterprises. Background technique [0002] At present, in the field of liquid level detection in the modern petrochemical industry, inductive technology is generally used to connect electronic components and cables, and the formed circuit is in direct contact with the oil; in the actual use process, the cable is often damaged, resulting in poor sealing Strictly, the occurrence of sparks seriously threatens the safe production of petrochemical enterprises. Contents of the invention [0003] In order to overcome the above-mentioned technical defects, the present invention provides an explosion-proof detection control method for flammable liquid level. It can timely detect and control the status of the liquid level, overcome the potential safety hazards caused by ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the field of liquid level detection in the modern petrochemical industry, inductive technology is generally used to connect electronic components and cables, and the formed circuit is in direct contact with the oil; in the actual use process, the cable is often damaged, resulting in poor sealing Strictly, the occurrence of sparks seriously threatens the safe production of petrochemical enterprises

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