Inclination sensing type storage tank liquid level intelligent detection method and device

Abstract

An inclination sensing type storage tank liquid level intelligent detection method is achieved through an inclination sensing type liquid level meter, an inclination sensor module, a temperature compensation module, an MCU processor module, a collection processing module and a data remote transmission module. A mechanical floating ball pointer is used as a working mechanism of the liquid level meter, an inclination sensing type liquid level meter pointer is used for measuring rotating angles, the processor module collects and processes each electrical signal converted from a pointer inclination, the liquid level and the volume of a storage tank are worked out according to corresponding relation of each angle and one liquid level and through correction of data by a temperature collecting module, and liquid level and volume data are output in a remote transmission mode through electrical signals and digital signals. For a remote storage tank without power supply, the inclination sensing type liquid level meter is provided with a solar panel and a storage battery power supply module, wireless networks such as CDMA or 3G or GPRS are used for remote transmission of data.

Description

technical field [0001] The invention relates to the technical field of detecting the liquid level of an oilfield storage tank, in particular to an intelligent detection method and device for the liquid level of an inclination-sensing storage tank. Background technique [0002] Oilfield production requires a lot of storage tank equipment, such as three-phase oil-water separators, buffer tanks, oil well multifunctional collectors, etc. In oil field production, due to the vast area, many storage tanks are located in remote areas, and there are few on-site operators, production accidents often occur due to low or high liquid levels. Therefore, it is very important for liquid level monitoring of storage tanks. There are many types of liquid level gauges in use today, but there are certain problems in the use of remote closed storage tanks, such as: differential pressure liquid level gauges have poor accuracy due to changes in crude oil density and water content; ultrasonic l...

AI Technical Summary

Problems solved by technology

There are many types of liquid level gauges in use today, but there are certain problems in the use of remote closed storage tanks, such as: differential pressure liquid level gauges have poor accuracy due to changes in crude oil density and water content; ultrasonic liquid level gauges Gauge, radar level gauge, etc. also have large errors or even wrong signals due to problems such as foam and crude oil crust

Storage tanks generally belong to pressure vessel equipment, which need to be filed for national special equipment. After the production and delivery inspection is completed, it is generally not allowed to open again. After skid installation, the distance to the site is relatively long, and the instrument generally cannot be installed directly. It can only be installed after arriving at the site, but this generally requires re-testing the pipe body. When the instrument fails, it is necessary to stop production, remove the pressure, or even clean the entire memory before disassembling the instrument.

Therefore, traditional liquid level instruments are subject to many restrictions in application

The storage tank is generally equipped with a side-mounted mechanical pointer to indicate the liquid level in the storage tank. The pointer and the internal float are a mechanical linkage structure, which is less affected by various factors. The field is generally equipped with an indicator dial, which cannot complete the remote transmission of the liquid level. The pointer refers to the scale on the dial for data reading, and the real-time performance is poor

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