A Measuring Instrument for Oil-Water Interface Based on Photoelectric Sensing

Abstract

An oil-water interface measuring instrument based on photoelectric sensing, comprising a photoelectric sensor measuring head, a tape measure and a tape measure data reading and display mechanism; Take the display mechanism to record the rotation speed of the tape measure through the encoder, and then calculate and display the value of the tape measure rotation by the single chip computer; a measuring circuit is arranged between the cylindrical shell and the hollow glass tube in the photoelectric sensor measuring head; in the measuring circuit, the light emission There is one light-emitting tube in the light-receiving area, and two receiving tubes in the light-receiving area, forming a photoelectric sensor group; when the sensor group is placed at the oil-water interface, the light will be refracted and scattered, resulting in the light of the two light-receiving tubes will change, thus Determine if there is an interface change. The invention realizes the high-precision detection of the oil-water interface and the automatic reading of the interface distance, and has the characteristics of high measurement accuracy, automatic reading and simple operation compared with the traditional equipment.

Description

technical field [0001] The invention relates to the field of photoelectric sensing, in particular to an oil-water interface measuring instrument based on photoelectric sensing. Background technique [0002] In the ship fuel supply system, oil-water separation is an extremely important link. The change of the oil-water interface in the cabin will seriously affect the energy consumption index and propulsion performance of the marine diesel engine. However, the medium in contact with various detection devices is mostly a mixture of oil and water, which will seriously cause fouling of the external devices of the measuring instrument, making components such as maglev unable to move freely with the interface due to fouling of the conduit, resulting in errors. At the same time, due to the viscosity of crude oil, the oil film formed outside the probes of short-wave, radio-frequency and other interface instruments cannot accurately measure the results. More importantly, these testi...

AI Technical Summary

Problems solved by technology

However, the medium in contact with various detection devices is mostly a mixture of oil and water, which will seriously cause serious fouling of the external devices of the measuring instrument, making components such as maglev unable to move freely with the interface due to fouling of the conduit, resulting in errors

At the same time, due to the viscosity of crude oil, the oil film formed outside the probes of short-wave, radio-frequency and other interface instruments cannot accurately measure the results.

More importantly, these testing equipment are expensive and complicated to replace, and cannot adapt to the shipping industry

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