Oil-water interface position measuring device

Abstract

Provided is an oil-water interface position measuring device. The oil-water interface position measuring device can measure a liquid level position of mixture liquid, in particular to an oil-water interface position, and the device plays an important role in chemistry and chemical engineering fields. The oil-water interface position measuring device comprises an LED light set, linear array CCD, a separating pipe, a stepping motor and a computer; the separating pipe is composed of a sealing pipe containing the LED light set and a sealing pipe containing the linear array CCD, and the two sealing pipes are fixedly connected with each other through a rigid connecting piece to enable the distance between the LED light set and the linear array CCD to remain unchanged; the stepping motor drives the linear array CCD to move up and down, light intensities of LED lights from different liquid level heights are received through the linear array CCD, and light intensity values received by the linear array CCD are displayed on the computer to determine the oil-water interface position. The measuring device is separated from the liquid by the separating pipe, the heat dissipation volume of components and parts is low, and the oil-water interface position measuring device is applicable to the measurement of flammable and combustible dangerous occasions.

Description

technical field [0001] The invention belongs to the field of industrial measurement, and relates to a mixed liquid interface detection device, in particular to an oil-water interface position measurement device. Background technique [0002] Mixed liquid interface detection, especially oil-water interface detection is widely used, such as petrochemical, chemical and chemical, sewage treatment, etc. At present, the oil-water interface position measuring devices on the market use the difference in density, dielectric constant, and resistance of oil and water to determine the position of the oil-water interface. For example, using the difference in density between oil and water, put a float of appropriate density into the oil tank, and read the position of the float through a stopwatch to get the position of the oil-water interface; using the difference in the refractive index of oil and water, put a special refractive index optical fiber Put the probe into the oil tank to de...

AI Technical Summary

Problems solved by technology

However, the existing oil-water interface measurement methods mainly have the following three problems: first, emulsification inevitably occurs between the oil layer and the water layer, and it is difficult to find a clear oil-water interface; second, the input-type oil-water interface detection instrument will stick to the crude oil The situation that makes the measurement has a large error; the third is that in the flammable and explosive occasions, the measurement methods such as capacitance and electrodes cannot be used

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