Crude oil pipeline anti-blocking device based on single-chip microcomputer control

Abstract

The invention discloses a crude oil pipeline anti-blocking device based on single-chip microcomputer control, and belongs to the field of pipeline descaling. The device comprises an electromagnetic anti-scaling instrument, a liquid inlet pipe, a liquid discharge pipe, a sampling pipe, a liquid quality detection module and a return pipe, the electromagnetic anti-scaling instrument is provided withan MCU controller, a power amplification module and a load coil. A dsPIC30F4012 single chip microcomputer is adopted as the MCU controller; a first switch assembly is arranged on the sampling pipe, asecond switch valve is arranged on the portion, between the position connected with the output end of the return pipe and the position connected with the output end of the sampling pipe, of the liquidinlet pipe, a third switch assembly is arranged on the return pipe, and the output end of the liquid quality detection module is connected with an I/O port of the MCU. According to the invention, thePWM signals of different levels of wavebands can be selected according to different to-be-processed liquids, automatic matching of output level wavebands of the PWM signals output by the dsPIC30F4012single-chip microcomputer can be realized, only one standard value needs to be set, errors are not easy to occur, and the application is convenient.

Description

technical field [0001] The invention relates to the field of pipeline descaling, in particular to an anti-blocking device for crude oil pipelines controlled by a single-chip microcomputer. Background technique [0002] When the oil field is exploited, the wax is separated and precipitated from the oil, and the continuous deposition of the wax will lead to blockage of the oil-producing layers, oil wells and oil pipelines, resulting in a decrease in production, and even shutdown of production, which will bring great trouble to production. Waxing in oil wells is one of the outstanding problems that affect the high and stable production of oil wells. Seeking reasonable methods to solve the problems encountered in oil and gas production has become an urgent problem in oilfield exploitation. [0003] With the continuous development of electromagnetic induction heating technology, it has been found that electromagnetic fields can change the microstructure of many molecules, so wax ...

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Problems solved by technology

However, when it is applied, it is necessary to set two threshold values ​​for the color sensor (the number of threshold values ​​is only one less than the number of levels of the PWM signal band), and it is also necessary to pre-enter the concentration range of calcium and magnesium ions in the water and the appropriate one-to-one correspondence with them. The level band PWM signal database used is cumbersome for the analysis of the detection data, and the application is more inconvenient; at the same time, it is difficult to distinguish the color corresponding to the limit value, and errors are prone to occur. If the bands of the PWM signal are divided into more levels, it is necessary to Adding a limit value will make the analysis and comparison of the detection data more cumbersome, and the color close to the limit value will be more difficult to distinguish, and the possibility of errors will also increase

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