Crude oil storage tank oil-water liquid level measurement device and method

Abstract

The invention discloses a crude oil storage tank oil-water liquid level measurement device and method. The device comprises a crude oil storage tank and an oil-water liquid level measurement device body arranged in the crude oil storage tank, wherein the oil-water liquid level measurement device body comprises a light source lighting array and a light-sensitive sensing array which are arranged in a medium in the crude oil storage tank in parallel. The light source lighting array comprises a plurality of serially connected light emitting diodes, the light-sensitive sensing array comprises a plurality of serially connected light dependent resistors, the top of the light source lighting array and the top of the light-sensitive sensing array are connected with a data acquisition module, and the data acquisition module is located at the top of the crude oil storage tank. The difference principle that propagation and absorption of light in different media are different is utilized to acquire light signals absorbed by the media through a light-sensitive sensor, different data of the different media is obtained, gas, oil, water and an oil and water mixed medium are distinguished, and stable, efficient and accurate measurement of the oil-water liquid level of the crude oil storage tank is achieved.

Description

technical field [0001] The invention belongs to the technical field of automatic measurement, and in particular relates to a crude oil storage tank oil-water level measuring device and method, which are mainly used in crude oil storage tank oil-water level measurement. Background technique [0002] There is a very complicated process from oil extraction to separation and refining, to production and consumption, and the extraction alone is a complicated process. The extracted petroleum is a mixture of oil, gas, and water, often accompanied by a small amount of sediment, and it is necessary to adopt a process to remove impurities such as gas, water, and sediment. Generally speaking, it is relatively easy to remove sediment and gas, but removing water is a very complicated process, and oil-water separation technology has emerged as the times require. Oil-water level measurement technology is based on the different physical or chemical properties of oil and water, using a certa...

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Problems solved by technology

The advantage of the electromagnetic wave separation method is that the measurement error is small, and the disadvantage is that the cost is relatively expensive, and the stability is not high, and the program optimization data is required in the later stage

[0009] The above-mentioned oil-water level measurement technology is relatively mature, and the corresponding oil-water level measurement device has also been widely used. However, in the actual measurement process, there are hang-ups, stickiness, great influence of temperature and humidity, large drift, and easy jamming. , instability, and the need to repeatedly discharge and inject liquid during on-site debugging

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