Online method for measuring oil density in oil containing sewage and device thereof

A technology for oily sewage and concentration, which is applied in the field of measurement to achieve the effects of convenient use, low cost and stable measurement

Inactive Publication Date: 2005-10-26
XI AN JIAOTONG UNIV
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Problems solved by technology

However, these two measuring instruments are not on-line testing instruments, and sam

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  • Online method for measuring oil density in oil containing sewage and device thereof

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Embodiment Construction

[0015] According to the above technical solution, the device of the method for online measurement of oily sewage concentration in this embodiment includes a vertical measuring section 1. The fluid inlet and fluid outlet of the measuring section 1 are provided with ultrasonic oscillators 10 and 11 respectively. There are three pairs of white sapphire windows 2, 3, 4 that can transmit light on the outer tube wall. The three pairs of white sapphire windows are set at an angle of 120 degrees each other. The three pairs of white sapphire windows are correspondingly equipped with three sets of photoelectric converters 5, 6, 7, which are white Sapphire window 2 corresponds to photoelectric converter 5, White Sapphire window 3 corresponds to photoelectric converter 6, White Sapphire window 4 corresponds to photoelectric converter 7, photoelectric converters 5, 6, and 7 are all connected to a signal receiving and amplifier 8 through signal reception It is connected to an amplifier 8 and an...

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Abstract

The invention discloses the online measuring the oil concentration of the sewage and its equipment. The method adopts the ultrasonic emulsification oil-water mixture and uses the optical nephelo method to test the oil concentration. The equipment comprises the measuring section vertically put on the sewage pipeline, the ultrasonic oscillator set at the input and the output ends of the measuring section; three pairs of white gem windows transmitting beams set at the outside pipe wall, and the windows arrange in 120 Deg angle mutually; three groups of photoelectric converters are set corresponding to the windows; connect the industrial controller with a displayer through the signal receiver and the amplifier. When the sewage flows through the test section, the ultrasonic oscillator emulsificates the sewage and mixes it evenly; the testing beam is the violet beam with fixed wavelength; the photoelectric converter converses the optical signal into the electric signal and the optical nephelometer calculates the oil concentration of the sewage.

Description

Technical field [0001] The invention belongs to the technical field of measurement, and further relates to a method and a device for online measurement of oil concentration in oily sewage. Background technique [0002] In the petroleum and chemical industry, a large amount of oily sewage needs to be treated, and online detection of the oil concentration of the sewage before treatment and the oil concentration of the purified water after treatment is required. At present, there is no method and device capable of continuously measuring the oil concentration of sewage online at home and abroad. Most of the existing detection methods at home and abroad are the extraction of oil with solvents such as carbon tetrachloride, and then the infrared attenuation measurement method, which cannot be measured online. According to the currently used sewage oil analysis and detection instruments in oilfields, chemical and other industrial sectors at home and abroad, there ...

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Application Information

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IPC IPC(8): G01N21/33
Inventor 周宗强黄远刘磊曾亚勤王亚平周芳德许国兵徐信强
Owner XI AN JIAOTONG UNIV
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