CN100434896C - Online method for measuring oil density in oil containing sewage and device thereof - Google Patents
Online method for measuring oil density in oil containing sewage and device thereof Download PDFInfo
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- CN100434896C CN100434896C CNB2005100426448A CN200510042644A CN100434896C CN 100434896 C CN100434896 C CN 100434896C CN B2005100426448 A CNB2005100426448 A CN B2005100426448A CN 200510042644 A CN200510042644 A CN 200510042644A CN 100434896 C CN100434896 C CN 100434896C
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Abstract
The present invention discloses a method for measuring the oil-bearing concentration of oily sewage on line and a device thereof. The method measures the oil-bearing concentration by optical nephelometry by using an ultrasonic emulsified oil-water mixture. The device comprises a measuring section vertically put on an oily sewage pipeline. A fluid inlet and a fluid outlet of the measuring section are respectively provided with an ultrasonic oscillator. The outer pipe wall of the measuring section is also respectively provided with three pairs of white stone windows which can be transmitted by light rays along the length of the measuring section. Three pairs of white stone windows are arranged in the relation of 120 DEG angle. The white stone windows are correspondingly provided with three groups of photoelectric converters respectively. The photoelectric converters are connected with an industrial computer with a displayer by a signal reception device and an amplifier. When the oily sewage flows over the measuring section, the ultrasonic oscillator emulsifies the oily sewage to make the oily sewage homogeneously mixed. A measuring beam is violet light with a fixed wave length. Each photoelectric converter converts optical signals transmitting the white stone windows to electric signals, and the oil-bearing concentration of the oily sewage is worked out by the optical nephelometry in the industrial computer.
Description
Technical field
The invention belongs to field of measuring technique, further relate to the method and the device thereof of oil concentration in a kind of on-line measurement oily sewage.
Background technology
Need in oil and the chemical engineering industry a large amount of oily sewages are handled, need and handle that oil concentration carry out online detection in the water purification of back to the sewage with oil concentration before handling, does not still have both at home and abroad at present can on-line continuous measurement sewage with oil concentration method and apparatus.The detection method that has the sixth of the twelve Earthly Branches mostly is greatly with phenixin equal solvent extraction oil both at home and abroad, measures with the infrared ray attenuation measuring technique again, can't accomplish on-line measurement.According at present domestic and international oil field, the applied sewage with oil analysis and detecting instrument instrument of chemical industry and other industrial sector, form is of a great variety, and it is also inconsistent to detect effect, the most importantly still incompetent at present equipment and instrument that is used for online detection.In practice, during the oil content before the oil field was measured, what adopt mostly was 0CM-220 oil analysis instrument, belong to non-dispersion infrared and survey, but measurement result is often on the low side.And the non-dispersion infrared oil content analyzer is too big to the dependence of standard oil, in the just hydrocarbon composition that it influenced-CH3 ,-CH2, also promptly aliphatic hydrocarbon, naphthenic hydrocarbon skeleton structure there is response, the infrared spectrophotometry of JK-951 Infrared Oil Determination Instrument afterwards is to various hydro carbons ratios, even the sample of several sections ratios all has good response.JK-951 type Infrared Oil Determination Instrument (application of Qin Ying sea .JK-951 type oil content analyzer in Wastewater Determination. Chemical Engineer .2001.6) when selecting infrared spectrophotometer to measure, can measure whole content of oil content concentration in the water body rapidly, accurately, and do not need standard oil, thereby can both measure exactly any component.But these two kinds of surveying instruments are not the on-line detector devices, need in the operating process sample is sampled one by one, obtain analysis result.
Summary of the invention
The device that the object of the present invention is to provide a kind of on-line continuous to measure the method for oily sewage and adopt this method to prepare.
To achieve these goals, the present invention takes following technical scheme to be achieved:
A kind of method of on-line measurement oily sewage concentration is characterized in that, adopts the ultrasonic emulsification oil water mixture, measures oil concentration by the optics nephelometry, comprises the following steps:
1) the vertical measuring section of placing on the oily sewage pipeline, fluid inlet and fluid egress point at this measuring section are respectively arranged with ultrasonator, also measuring section length is respectively arranged with the white stone window of three pairs of transmissive light in measuring section outer tube wall upper edge, three pairs of white stone windows are mutually 120 degree angles and arrange, white stone window correspondence respectively is provided with three groups of photoelectric commutators, three groups of photoelectric commutators receive with a signal respectively and are connected with amplifier, are connected with an Industrial Control Computer that has display by amplifier;
2) when oily sewage flows through measuring section, the ultrasonator work on the measuring section with oily sewage emulsification, makes it even mixing, cleans the white stone window simultaneously, makes window keep transparent, is not infected with by greasy dirt and influences penetrability and measuring accuracy;
3) measuring beam is the purple light of a fixed wave length, and three groups of measuring beams carry out transmission at three pairs of white stone windows respectively, avoid the unevenness of measuring media, guarantees the stable of measured value;
4) photoelectric commutator will convert electric signal to through the light signal of white stone window, when oily sewage concentration changes, its electric signal changes thereupon, send on the Industrial Control Computer that has display by signal reception and amplifier, calculate the oil concentration of oily sewage by the optics nephelometry in the Industrial Control Computer.
Realize the device of the method for above-mentioned on-line measurement oily sewage concentration, be included in the vertical measuring section of placing on the oily sewage pipeline, it is characterized in that, fluid inlet and fluid egress point at this measuring section are respectively arranged with ultrasonator, also measuring section length is respectively arranged with the white stone window of three pairs of transmissive light in measuring section outer tube wall upper edge, three pairs of white stone windows are mutually 120 degree angles and arrange, white stone window correspondence respectively is provided with three groups of photoelectric commutators, three groups of photoelectric commutators receive with a signal respectively and are connected with amplifier, are connected with an Industrial Control Computer that has display by amplifier.
The measuring beam of white stone window is the purple light of a fixed wave length.
Method of the present invention and oily sewage measurement mechanism thereof are simple and practical, measurement is stable, cost is low, easy to use, can be widely used in the measurement of oil concentration in the oily sewage in refinery and the petrochemical complex, can also measure the concentration range of oil-containing as required, or adopt the transmittance of varying strength.
Description of drawings
Fig. 1 is a structure principle chart of the present invention.
The present invention is further illustrated below in conjunction with accompanying drawing.
Embodiment
According to technique scheme, the device of the method for the on-line measurement oily sewage concentration in the present embodiment comprises a vertical measuring section 1 of placing, the fluid inlet of measuring section 1 and fluid egress point are provided with ultrasonator 10 respectively, 11, the white stone window 2 that three pairs of transmissive light are arranged on the outer tube wall of measuring section 1,3,4, three pairs of white stone windows are mutually 120 degree angles and are provided with, three pairs of white stone window correspondences are provided with three groups of photoelectric commutators 5,6,7, be white stone window 2 corresponding photoelectric commutators 5, white stone window 3 corresponding photoelectric commutators 6, white stone window 4 corresponding photoelectric commutators 7, photoelectric commutator 5,6,7 all are connected with amplifier 8 with a signal reception, receive by signal to be connected with an Industrial Control Computer 9 that has display with amplifier 8.
In measuring process, when oily sewage flows through measuring section 1 from top to down, the fluid inlet of measuring section 1 and 10,11 work of the ultrasonator on the fluid egress point, with oily sewage emulsification, evenly mix with water, simultaneously the white stone window is played cleaning action, the white stone window is remained transparently be not infected with, do not influence penetrability and measuring accuracy by oil.Measuring beam is the purple light of a fixed wave length, to guarantee the stable of measured value, photoelectric commutator 5,6,7 will be through white stone window 2,3,4, light signal convert electric signal to, when oily sewage concentration changes, electric signal changes thereupon, and the Industrial Control Computer 9 that has display is according to the electric signal that obtains, utilize the optics nephelometry computing formula that is provided with in the Industrial Control Computer 9, calculate the oil concentration in the oily sewage.
The present invention adopts three groups of light respectively three pairs of window transmission, is in order to improve measuring accuracy, to avoid the unevenness of measuring media.
Being arranged on the optics nephelometry computing formula that is provided with in the Industrial Control Computer 9 is:
I
x＝I
o×exp(d)
I in the formula
xBe transmitted intensity, I
oBe former light intensity, d is a turbidity, and turbidity and sewage with oil concentration relationship are demarcated and can be obtained by the laboratory.
Claims (2)
1, the method for oil concentration in a kind of on-line measurement oily sewage is characterized in that, adopts the ultrasonic emulsification oil water mixture, measures oil concentration by the optics nephelometry, comprises the following steps:
1) the vertical measuring section of placing on the oily sewage pipeline, fluid inlet and fluid egress point at this measuring section are respectively arranged with ultrasonator, also measuring section length is respectively arranged with the white stone window of three pairs of transmissive light in measuring section outer tube wall upper edge, three pairs of white stone windows are mutually 120 degree angles and arrange, white stone window correspondence respectively is provided with three groups of photoelectric commutators, three groups of photoelectric commutators receive with a signal respectively and are connected with amplifier, are connected with an Industrial Control Computer that has display by signal reception and amplifier;
2) when oily sewage flows through measuring section, the ultrasonator work on the measuring section with oily sewage emulsification, makes it even mixing, cleans the white stone window simultaneously, makes window keep transparent, is not infected with by greasy dirt and influences penetrability and measuring accuracy;
3) measuring beam is the purple light of a fixed wave length, and three groups of measuring beams carry out transmission at three pairs of white stone windows respectively, avoid the unevenness of measuring media, guarantees the stable of measured value;
4) photoelectric commutator will convert electric signal to through the light signal of white stone window, and when the oil concentration of oily sewage changed, its electric signal changed thereupon; Send on the Industrial Control Computer that has display by signal reception and amplifier, calculate the oil concentration of oily sewage by the optics nephelometry in the Industrial Control Computer.
2. the device of an on-line measurement oily sewage oil concentration, this device is included in the vertical measuring section (1) of placing on the oily sewage pipeline, it is characterized in that, fluid inlet and fluid egress point at this measuring section (1) are respectively arranged with ultrasonator (10,11), also be respectively arranged with the white stone window (2,3,4) of three pairs of transmissive light on the measuring section outer tube wall along measuring section length, the measuring beam of white stone window (2,3,4) is the purple light of a fixed wave length; Three pairs of white stone windows are mutually 120 degree angles and arrange, white stone window correspondence respectively is provided with three groups of photoelectric commutators (5,6,7), three groups of photoelectric commutators receive with a signal respectively and are connected with amplifier (8), are connected with an Industrial Control Computer (9) that has display by amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100426448A CN100434896C (en) | 2005-05-08 | 2005-05-08 | Online method for measuring oil density in oil containing sewage and device thereof |
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| CNB2005100426448A CN100434896C (en) | 2005-05-08 | 2005-05-08 | Online method for measuring oil density in oil containing sewage and device thereof |
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| CN1687746A CN1687746A (en) | 2005-10-26 |
| CN100434896C true CN100434896C (en) | 2008-11-19 |
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| CN102192893B (en) * | 2011-05-26 | 2012-09-05 | 江苏省环境监测中心 | Infrared photometric method for fast detecting oils in water |
| CN102866041B (en) * | 2012-09-11 | 2015-02-25 | 山东斯巴特电力驱动技术有限公司 | Oil-water gas online sampling system |
| CN107404069B (en) * | 2017-09-11 | 2023-04-11 | 广东粤电阳江海上风电有限公司 | Oil discharge monitoring system of offshore transformer substation |
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| CN108051344A (en) * | 2017-11-23 | 2018-05-18 | 浙江工业大学 | The realtime on-line monitoring method of polishing fluid bulky grain in a kind of polishing process |
| CN107817225B (en) * | 2017-12-15 | 2020-07-14 | 深圳市智水小荷技术有限公司 | Method for measuring oil content in water |
| CN109765198A (en) * | 2019-01-10 | 2019-05-17 | 中国海洋石油集团有限公司 | A kind of method and its model of real-time quantitative measurement downhole fluid oil content |
| CN110487733A (en) * | 2019-08-09 | 2019-11-22 | 南通化学环境监测站有限公司 | A kind of measurement surface water, underground water, in seawater petroleum-type measuring method |
| CN113405998A (en) * | 2021-06-29 | 2021-09-17 | 东北石油大学 | Oil field reinjection water oil content on-line measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038797A (en) * | 1996-07-18 | 1998-02-13 | Fuji Electric Co Ltd | Trace oil detector |
| CN2383066Y (en) * | 1999-07-15 | 2000-06-14 | 成都东方微电子技术应用研究所 | Detector for oil/liquid particle pollution |
| CN1303010A (en) * | 2000-01-04 | 2001-07-11 | 本溪钢铁公司机电安装工程公司 | Device and method for detecting oil pollution |
| CN2524239Y (en) * | 2001-08-22 | 2002-12-04 | 王骞 | Liquid turbidity test sensor |
| CN2570777Y (en) * | 2002-10-11 | 2003-09-03 | 武汉理工大学 | Orthogonal optical fibre on-line oil monitor |
-
2005
- 2005-05-08 CN CNB2005100426448A patent/CN100434896C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1038797A (en) * | 1996-07-18 | 1998-02-13 | Fuji Electric Co Ltd | Trace oil detector |
| CN2383066Y (en) * | 1999-07-15 | 2000-06-14 | 成都东方微电子技术应用研究所 | Detector for oil/liquid particle pollution |
| CN1303010A (en) * | 2000-01-04 | 2001-07-11 | 本溪钢铁公司机电安装工程公司 | Device and method for detecting oil pollution |
| CN2524239Y (en) * | 2001-08-22 | 2002-12-04 | 王骞 | Liquid turbidity test sensor |
| CN2570777Y (en) * | 2002-10-11 | 2003-09-03 | 武汉理工大学 | Orthogonal optical fibre on-line oil monitor |
Non-Patent Citations (1)
| Title |
|---|
| 特开平10-38797A 1998.02.13 |
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