CN200982955Y - Layered crude oil water content analyzer for laboratory - Google Patents

Layered crude oil water content analyzer for laboratory Download PDF

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Publication number
CN200982955Y
CN200982955Y CN 200620167425 CN200620167425U CN200982955Y CN 200982955 Y CN200982955 Y CN 200982955Y CN 200620167425 CN200620167425 CN 200620167425 CN 200620167425 U CN200620167425 U CN 200620167425U CN 200982955 Y CN200982955 Y CN 200982955Y
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CN
China
Prior art keywords
shortwave
crude oil
water content
inner core
urceolus
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Expired - Lifetime
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CN 200620167425
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Chinese (zh)
Inventor
徐常鑫
张京花
罗南体
尚建林
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

A layered crude oil water content analyzer for a laboratory is composed of a base, an outer cylinder, an inner cylinder, a short wave emitting electrode, a calculator and a display, wherein the outer cylinder is a stainless steel cylinder. The outer cylinder is fixed on the base and sealed. The top of the outer cylinder is provided with a central positioning sleeve, and the central hole of the central positioning sleeve is sleeved on the outer wall of the inner cylinder. The inner cylinder has a bottom. The short wave transmitting electrode group is sleeved on the outer wall of the inner cylinder and consists of short wave emitting electrodes and insulating cushion blocks, and one insulating cushion block is arranged between every two short wave emitting electrodes. The number of short-wave emitters is between 10 and 30. Each short wave emitting electrode is connected to the short wave emitting circuit board through a lead. The short wave transmitting circuit board is connected to the calculator and the display through signal lines. The effect is as follows: multiple average water values can be collected in the same sample. The calculator automatically carries out weighted average on the average water content values to obtain a comprehensive average water content value of the crude oil sample, and accurate crude oil water content is obtained.

Description

The layering crude oil water content analyser that is used for the laboratory
Technical field
The utility model relates to a kind of crude oil analytical instrument, particularly a kind of crude oil water containing assay instrument.
Background technology
What at present, the moisture assay of crude oil generally adopted is the way of distillation and centrifuge method.Because to analyze oily water percentage too slow for the way of distillation, inapplicable when chemical examination crude oil water containing in enormous quantities, can only be applied to the moisture crude oil that is lower than below 10% and join on the meticulous bearing analysis.Centrifuge method is the crude oil water containing analytical approach that generally adopt in the laboratory.Centrifugal ratio juris is based on the density variation of crude oil and water, and the principle of layering is carried out oil, moisture from surveying crude oil water content in hydro-extractor.
Centrifuge method assay crude oil water percentage technological process is: at first manually moisture crude oil sample is shaken up, therefrom extracting 10 gram samples puts into centrifuge tube and weighs, adding gasoline or breakdown of emulsion squeezes, then centrifuge tube is put into hydro-extractor rotation 5-10 minute of high speed rotating, seen manually after the taking-up that the profit scale mark calculates water percentage then.
Can find out according to centrifugal ratio juris and analytical test technological process thereof:
1) owing to the process complexity of chemical examination, not only labour intensity is big, the time is long, and the artifical influence factor of result of laboratory test is increased.
2) because the middle and high water sample that contains is difficult for mixing, will produce during second decimation 10 gram samples than mistake.
3) oil and water separation is insufficient in hydro-extractor also can produce error.
4) caused environmental pollution, brought unsafe factor, be unfavorable for employee's physical and mental health owing to adjuvants such as having used gasoline.
5) error rate is big: through contrast test checking repeatedly, maximum error can reach more than 20%, and average error rate is about 10%.
The crude oil water content of oil field chemical examination at present method all is the way of distillation and centrifuge method, the limitation of two kinds of methods and intrinsic drawback, not only make crude oil water containing sample analysis result of laboratory test water-retention value gap true bigger with it, and because workload is big, process is complicated, cause personnel shortage, labour intensity big, and waste lightweight wet goods starting material; Also, not only cause environmental pollution, bring potential safety hazard, and be unfavorable for employee's physical and mental health owing to use lightweight wet goods adjuvant for a long time.
The utility model content
Based on above-mentioned several aspects reason, we thinking deeply always development a kind of not only accurately but also the instrument of chemically examining the crude oil water containing sample fast substitute present water-cut meter, change its assay method.According to work experience in the past, we once adopted shortwave absorption process electronics step-by-step movement moisture sensor experiment measuring to cross liquid level, water-oil interface and the separated layer water cut of slurry tank.Equally, can not utilize this ultimate principle that instrument and meter is improved on structure, performance and using method, be applied on the analytical test oil samples of laboratory.Under the inspiration of this technology, through studying repeatedly, testing and improving and finally succeed in developing the analysis meter that is used for laboratory chemical examination crude oil water content for many years.
The purpose of this utility model is: a kind of layering crude oil water content analyser that is used for the laboratory is provided, the realization bulk sample detects: overcome the influence of sample emulsified state, no matter be Water-In-Oil or oil-in-water, profit mixes state or the profit stratification state all accurately detects; Do not change present oil recovery workman's sampling custom; The elimination error that centrifuge method when chemical examination secondary sample is brought behind the well mouth of oil well sample thief, centrifuge method assay office gets the error of about ten percentage points of average existence between water-retention value and the true water-retention value, makes crude oil water content error≤2%.The realization bulk sample detects, and improves the accuracy height.
Realize safety and environmental protection: need add potential safety hazard, the environmental pollution that gasoline, emulsion breaker etc. are brought when eliminating laboratory chemical examination oil samples, employment injuries, expense simultaneously saves material.
Improve analysis efficiency: the detection of an oil samples was controlled in two minutes.Simple to operation, accuracy is high, can carry as other moisture instrument of standard scale verification and detect the moisture check point need accurately know water percentage.Alleviate working strength of workers, increase work efficiency.
The technical solution adopted in the utility model is: the layering crude oil water content analyser that is used for the laboratory is made up of base, urceolus, inner core, shortwave emitter and counter and display, urceolus is that wall thickness is the stainless steel cask of 1.5-5 millimeter, external diameter 50-80 millimeter highly is the 150-300 millimeter.Urceolus is fixed on the base and sealing.The centralized positioning cover is arranged at the urceolus top, is enclosed within on the outer wall of inner core in the centralized positioning cover center pit.The centralized positioning cover can keep inner core and shortwave emitter and urceolus on same center line.Inner core has the end, makes tested crude oil can not enter inner core inside.Be with shortwave emitter group on the inner tank theca, shortwave emitter group is made up of shortwave emitter and cross-over block, between per two shortwave emitters a cross-over block is arranged.The quantity of shortwave emitter is between 10-30.The shortwave emitter is shaped as annular, and cross-over block is shaped as annular.Each shortwave emitter has lead to be connected on the shortwave emission wiring board.Shortwave emission wiring board is located in the inner core.Shortwave emission wiring board is connected to counter and display by signal wire.After counter sends instruction, pass to the shortwave emitter by signal wire and shortwave emission wiring board, shortwave emitter emission shortwave.Shortwave arrives outer tube inner wall and returns the shortwave emitter through the tested crude oil in the urceolus.The shortwave emitter receives the short-wave signal that returns, and passes to counter, Treatment Analysis through shortwave emission wiring board and signal wire.Because oil, water, dielectric constant of air difference, the energy of absorption are also different, counter energy analyzing and processing obtains the crude oil water content of single aspect.A plurality of shortwave emitters are gathered the crude oil water content of different aspects.In same sample, gather a plurality of average water-retention values.Counter is weighted the comprehensive average water-retention value that on average just draws a crude oil sample automatically to these average water-retention values, obtains crude oil water content accurately.
The beneficial effects of the utility model: the layering crude oil water content analyser that is used for the laboratory has been realized the bulk sample detection, the accuracy height.This analyser is not subjected to the sample quantitative limitation, and sample size is from all can accurately detecting between the 60ml-500ml; Be not subjected to the influence of oil samples emulsified state; No matter be Water-In-Oil or oil-in-water, profit mixes state or the profit stratification state all can accurately detect in the half at one minute; Do not change present oil recovery workman's sampling custom; Eliminated the error that secondary sample was brought when centrifuge method was chemically examined behind the well mouth of oil well sample thief, centrifuge method assay office gets the average error that has about ten percentage points between water-retention value and the true water-retention value, and layering crude oil water content analyzer error≤2%, the accuracy height.The detection efficiency height is surveyed an oil samples and only needed one fen half, and is simple to operation, accuracy is high, also can carry as other moisture instrument of standard scale verification and detects the moisture check point that need accurately know water percentage.Alleviate working strength of workers, improved work efficiency.The safety and environmental protection performance is good, need add when having eliminated laboratory chemical examination oil samples institute such as gasoline, emulsion breaker with meter potential safety hazard, environmental pollution, employment injuries has been saved cost of raw and processed materials simultaneously.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Accompanying drawing is the layering crude oil water content analyser structural profile synoptic diagram that the utility model is used for the laboratory.
Among the figure, 1. cross-over block, 2. shortwave emitter, 3. urceolus, 4. centralized positioning cover, 5. terminal box, 6. inner core, 7. shortwave emission wiring board, 8. signal wire, 9. counter and display, 10. base.
Embodiment
Embodiment: consult accompanying drawing.The layering crude oil water content analyser that is used for the laboratory is made up of base 10, urceolus 3, inner core 6, shortwave emitter 2 and counter and display 9, and urceolus 3 is that wall thickness is 2 millimeters a stainless steel cask, 60 millimeters of external diameters, and 56 millimeters of internal diameters highly are 225 millimeters.Urceolus 3 is fixed on the base 10 and sealing.Centralized positioning cover 4 is arranged at urceolus 3 tops, and centralized positioning cover 4 adopts nylon material to make.Centralized positioning is overlapped on the outer wall that is enclosed within inner core 6 in 4 center pits.Centralized positioning cover 4 can keep inner core 6 and shortwave emitter 2 and urceolus 3 on same center line.Inner core 6 has the end, is with shortwave emitter group on inner core 6 outer walls, and shortwave emitter group is made up of shortwave emitter 2 and cross-over block 1, between per two shortwave emitters 2 cross-over block 1 is arranged.The quantity of shortwave emitter 2 is 15.Shortwave emitter 2 is shaped as annular, 38 millimeters of external diameters, 10 millimeters of thickness.Cross-over block 1 is shaped as annular, 38 millimeters of external diameters, and 2.5 millimeters of thickness, cross-over block 1 adopt poly-PTFE to make.The total length of shortwave emitter group is 200 millimeters.Each shortwave emitter 2 has lead to be connected on the shortwave emission wiring board 7.Shortwave emission wiring board 7 is located in the inner core 6.A terminal box 5 is arranged at inner core 6 tops.Shortwave emission wiring board 7 is by terminal box 5, and employing signal wire 8 is connected to counter and display (9).
Embodiment 2: consult accompanying drawing.Substantially the same manner as Example 1.Difference is: when needs chemical examination viscous crude, need heating to reduce viscosity of crude.Present embodiment is wrapped with electrical heating wire and heat-insulation layer on the outer wall of urceolus 3.

Claims (3)

1, a kind of layering crude oil water content analyser in laboratory that is used for is by base (10), urceolus (3), inner core (6), shortwave emitter (2) and counter and display (9) are formed, urceolus (3) is that wall thickness is the stainless steel cask of 1.5-5 millimeter, external diameter 50-80 millimeter, it highly is the 150-300 millimeter, urceolus (3) is fixed on base (10) and goes up and seal, centralized positioning cover (4) is arranged at urceolus (3) top, centralized positioning cover (4) center pit is enclosed within on the outer wall of inner core (6), centralized positioning cover (4) can keep inner core (6) and shortwave emitter (2) and urceolus (3) on same center line, inner core (6) has the end, be with shortwave emitter group on inner core (6) outer wall, shortwave emitter group is made up of shortwave emitter (2) and cross-over block (1), a cross-over block (1) is arranged between per two shortwave emitters (2), the quantity of shortwave emitter (2) is between 10-30, shortwave emitter (2) is shaped as annular, cross-over block (1) is shaped as annular, each shortwave emitter (2) has lead to be connected on the shortwave emission wiring board (7), shortwave emission wiring board (7) is located in the inner core (6), and shortwave emission wiring board (7) is connected to counter and display (9) by signal wire (8).
2, the layering crude oil water content analyser that is used for the laboratory according to claim 1 is characterized in that: be wrapped with electrical heating wire and heat-insulation layer on the outer wall of urceolus (3).
3, the layering crude oil water content analyser that is used for the laboratory according to claim 1 and 2, it is characterized in that: a terminal box (5) is arranged at inner core (6) top.
CN 200620167425 2006-12-12 2006-12-12 Layered crude oil water content analyzer for laboratory Expired - Lifetime CN200982955Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012129972A1 (en) * 2011-03-28 2012-10-04 威海海和科技有限责任公司 Electrode structure and apparatus for use in measuring oil-water constituents
CN104713892A (en) * 2015-04-03 2015-06-17 江苏麦赫物联网科技有限公司 Modularized radio-frequency sensing electric field oil storage tank water-containing liquid level detection device and method
CN106645214A (en) * 2016-12-30 2017-05-10 锦州双星自动化仪表厂 Integrated multipoint radio frequency short wave sensor for detecting water content of crude oil
CN107014985A (en) * 2017-04-13 2017-08-04 滨州学院 The many online timesharing measuring systems of well crude oil water content and method
CN110455831A (en) * 2019-09-06 2019-11-15 程元涛 A kind of quick crude-oil water-content determiner of multi-C stereo formula
CN113030129A (en) * 2021-03-26 2021-06-25 锦州双星自动化技术有限公司 Multi-pole radio frequency layered crude oil water content analyzer and water content detection method
GB2592743A (en) * 2020-03-06 2021-09-08 Johnson Matthey Plc Level measurement apparatus
CN114994131A (en) * 2022-06-13 2022-09-02 锦州双星自动化技术有限公司 Crude oil water content detection cylinder, detection system and detection method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012129972A1 (en) * 2011-03-28 2012-10-04 威海海和科技有限责任公司 Electrode structure and apparatus for use in measuring oil-water constituents
US9395349B2 (en) 2011-03-28 2016-07-19 Weihai Haiher Technology Co. Electrode structure and apparatus for use in measuring oil-water constituents
CN104713892A (en) * 2015-04-03 2015-06-17 江苏麦赫物联网科技有限公司 Modularized radio-frequency sensing electric field oil storage tank water-containing liquid level detection device and method
CN106645214A (en) * 2016-12-30 2017-05-10 锦州双星自动化仪表厂 Integrated multipoint radio frequency short wave sensor for detecting water content of crude oil
CN107014985A (en) * 2017-04-13 2017-08-04 滨州学院 The many online timesharing measuring systems of well crude oil water content and method
CN110455831A (en) * 2019-09-06 2019-11-15 程元涛 A kind of quick crude-oil water-content determiner of multi-C stereo formula
GB2592743A (en) * 2020-03-06 2021-09-08 Johnson Matthey Plc Level measurement apparatus
GB2592743B (en) * 2020-03-06 2023-05-31 Johnson Matthey Plc Level measurement apparatus
CN113030129A (en) * 2021-03-26 2021-06-25 锦州双星自动化技术有限公司 Multi-pole radio frequency layered crude oil water content analyzer and water content detection method
CN114994131A (en) * 2022-06-13 2022-09-02 锦州双星自动化技术有限公司 Crude oil water content detection cylinder, detection system and detection method

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Granted publication date: 20071128

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