Online analyzer for water in crude oil

Abstract

The invention discloses an online analyzer for water in crude oil, and the analyzer comprises a casing, a mounting plate, window covers, glass covers, pressing rings, pillars, a panel, a circuit board, a water-containing probe assembly and a connecting terminal, wherein the mounting plate is vertically fixed in the casing, the casing is provided with openings at both end ends of the mounting plate, the window covers are screwed into the openings, the inner rings of the window covers are fastened with the glass covers, the window covers are fixed with the pressing rings at the inner sides of the glass covers, the pillars are fixed at four corners of the inner side of the mounting plate, the panel is fixed at the ends of the pillars, and the panel is fixed with circuit board by screws. In the online analyzer for water in crude oil, the threads by which the casing is connected to the explosion-proof filling letter, the wire plug, the connecting sleeve and the window covers are all explosion-proof threads, the effective number of meshing is more than 5 buckles, and the effective meshing length is greater than 8mm. The adaption of the explosion-proof threads at the joints can ensure thestability of the overall connection and effectively play an explosion-proof effect.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to an online crude oil moisture analyzer. Background technique [0002] The current on-line measurement of water content in crude oil is a problem that restricts the measurement of oilfield production teams. It brings certain difficulties to further refine the management assessment indicators and strict cost management, which affects the enthusiasm of oil production teams to participate in cost control. [0003] At present, the detection of water content in crude oil exported from oil transfer stations mainly uses manual testing and manual testing with density meters, which cannot realize real-time testing, and its data cannot be used as the basis for production teams. [0004] Now the online real-time water content monitoring instrument generally adopts the electrical measurement method, because the dielectric constant of oil and water is significantly different (oil is...

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Problems solved by technology

[0005] However, there is a stability problem in the electric measurement instrument, because the frequency band of the oscillation source used by the instrument is generally microwave. In terms of the resolution of the instrument, the higher the frequency, the better, but the microwave transmitter is an analog component. Considering the stability The problem is generally only a few hundred megabytes at most, but after field application, interference factors such as frequency drift still directly affect the data accuracy of the instrument. From the installation and use of related instruments at home and abroad, the data accuracy is still OK after installation and calibration Satisfying the production application, after a period of application, the data will drift. Although the oil products in each area are different, to improve the performance of the instrument, the microwave frequency needs to be increased, but the frequency stability of the microwave oscillator is a bottleneck that plagues this type of instrument

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