CN102830219A - Crude oil water-content on-line tester - Google Patents

Crude oil water-content on-line tester Download PDF

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Publication number
CN102830219A
CN102830219A CN2012103004791A CN201210300479A CN102830219A CN 102830219 A CN102830219 A CN 102830219A CN 2012103004791 A CN2012103004791 A CN 2012103004791A CN 201210300479 A CN201210300479 A CN 201210300479A CN 102830219 A CN102830219 A CN 102830219A
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China
Prior art keywords
oil
valve
pull bar
water
content
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Application number
CN2012103004791A
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Chinese (zh)
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CN102830219B (en
Inventor
陈星霖
龚术新
王志学
王景龙
孙大鹏
范志伟
马宁
郑永贵
周耀辉
陈虹旭
李素梅
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BEIJING YONGXING JINGJIA INSTRUMENTS CO LTD
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BEIJING YONGXING JINGJIA INSTRUMENTS CO LTD
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Priority to CN201210300479.1A priority Critical patent/CN102830219B/en
Publication of CN102830219A publication Critical patent/CN102830219A/en
Application granted granted Critical
Publication of CN102830219B publication Critical patent/CN102830219B/en
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Abstract

The invention discloses a crude oil water-content on-line tester. The crude oil water-content on-line tester comprises a valve body with a valve cavity. The valve body is provided with an oil inlet and an oil return opening communicated with the valve cavity. The oil inlet is connected to an oil inlet pipe which is provided with a circulating oil pump and an oil inlet pipe stop valve and is connected to an oil transportation main pipe. The oil return opening is connected to an oil return pipe which is provided with an oil return stop valve and is connected to the oil transportation main pipe. A water-content tester probe is arranged at one of two opposite sides of the valve body and a push-pull rod is arranged at the other one of the two opposite sides of the valve body. Front parts of the water-content tester probe and the push-pull rod stretch into the valve cavity. A rear part of the push-pull rod stretches out of the valve body. A fluorine rubber sleeve with a centre hole is fixed to a front end of the push-pull rod. The centre hole of the fluorine rubber sleeve aims at the water-content tester probe and sizes of the centre hole and the water-content tester probe are matched. A rear end of the push-pull rod is connected to a push-pull power plant. The crude oil water-content on-line tester realizes automatic timing and regular wax removal, avoids stopping of the oil transportation main pipe, avoids dismounting and manual cleaning of the water-content tester probe, realizes accurate water-content tester detection data, and realizes simple and reliable crude oil water-content on-line detection.

Description

The online moisture analyzer of crude oil
Technical field:
The present invention relates to the online moisture analyzer of a kind of crude oil, be used for the water content in crude oil of on-line measurement pipeline transportation.
Background technology:
Water content in crude oil how much be to one of key index that closes both parties' economic interests; Although the various mineral matters in the crude oil are various and complicated; But the factor that moisture analyzer measuring accuracy has the greatest impact is moisture analyzer probe hangs wax; Because each crude oil wax content difference is added the difference of delivery temperature very greatly,, moisture analyzer probe hangs the wax phenomenon thereby being produced erratically.After probe is hung wax; The outside cere of probe will form one deck medium to probe and crude oil, and along with the variation of dielectric layer, result that analyzer is surveyed will great changes will take place; Cause the result that surveys not have any authenticity and practicality, thereby moisture analyzer probe is in time carried out paraffin removal is necessary.It is the lateral opening at pipe laying that present domestic most pipe laying adopts moisture assay method; Through the fixing moisture analyzer probe of ring flange; If the wax phenomenon appears hanging in probe, all need under the situation of pipeline shutdown, carry out clean behind the dismounting ring flange; In cleaning process, need high amounts of solvents oil or clean-out system, not only strengthen the cleaning cost but also polluted environment.In addition, higher because of stopping the defeated power of examination and approval, when moisture analyzer probe needed to clean, as can not grantedly stopping to fail, this moment, data that moisture analyzer is surveyed have no value for use fully, and therefore, the moisture analyzer of this type is the deadlock state basically.Another kind method is to have increased a circulation bypass at pipe laying; With crude oil by extracting out in the oil transportation Trunk Line; Feed back oily Trunk Line through forced circulation behind ebullator, stop valve, the oil transportation by-pass pipe, moisture analyzer probe apparatus is on the oil transportation by-pass pipe, and this method is closed stop valve under the situation of not stopping to fail just can pull down cleaning to moisture analyzer probe; But owing to how much altering a great deal of the content of wax in the crude oil; Cause moisture analyzer probe to hang that wax thickness is irregular to follow, be difficult to accomplish to hang the timely cleaning of wax layer, measured data still do not have much practical values.
Summary of the invention:
The purpose of this invention is to provide the online moisture analyzer of a kind of crude oil, solve that original moisture analyzer need stop to fail, dismantles, artificial defective of cleaning, associate device control down regularly, fixed the automatic paraffin removal in ground, make moisture analyzer survey the data true and accurate.
The objective of the invention is to realize as follows: a valve body that has valve pocket is arranged; Oil-in and the oil return opening that is communicated with valve pocket is set on the valve body, connects the oil inlet pipe that has circulating oil pump and oil inlet pipe stop valve and be connected to the oil transportation Trunk Line on the oil-in, connect the scavenge pipe that has the scavenge pipe stop valve and be connected to the oil transportation Trunk Line on the oil return opening; On two relative sides of valve body; The moisture analyzer of one of them lateral means is popped one's head in and another lateral means pull bar, and moisture analyzer probe front portion is stretched in valve pocket, and the pull bar front portion is also stretched in valve pocket; Stretch out outside valve body at the pull bar rear portion; Pull bar and the sealing of valve body end cap endoporus, the front end of pull bar fixedly has the fluorine gum cover of center pit, and the center line of the center pit of fluorine gum cover and moisture analyzer probe is on same straight line; The excircle of the center-hole diameter of fluorine gum cover and moisture analyzer probe is adaptive, and the rear end of pull bar is connected with the push-and-pull propulsion system.
The pull bar front end has an axial bore; There is the side opening that communicates with its endoporus the pull bar side; At least near endoporus bottom, the side opening that communicates is arranged, side opening is the crude oil escape orifice of moisture analyzer probe when getting into the pull bar endoporus, avoids crude oil in endoporus, to be formed resistance by shutoff; Pull bar front end periphery has the guiding wing limit that is supported on the valve pocket inwall; Gap between the wing limit forms in the valve pocket passage of both sides before and after the pull bar targeting part, avoids stopping the path of crude oil between oil-in and oil return opening, and the fluorine gum cover is enclosed in the annular groove of pull bar endoporus front end and fixes with interior jump ring end.
The push-and-pull propulsion system that are connected with pull bar are preferably electric pushrod, and electric pushrod is electrically connected with microcomputer controller.The push-and-pull propulsion system also can be selected leading screw, electromagnet, oil cylinder, cylinder etc. for use.
Be connected through having right-and-left threaded adjusting screw(rod) between pull bar and the push-and-pull propulsion system.Right-and-left threaded adjusting screw(rod) is to be the stroke of adjustment pull bar in valve pocket.
From the oil transportation Trunk Line, extract crude oil out supercharging after the oil inlet pipe stop valve flows into the valve pocket of paraffin removal valve body by circulating oil pump; Flow back in the oil transportation Trunk Line through scavenge pipe stop valve and scavenge pipe again, moisture analyzer probe be in all the time with the oil transportation Trunk Line in flow the same oil product of crude oil.Oil inlet pipe stop valve and scavenge pipe stop valve are set during for valve inner parts maintenances or maintenance, during like need maintenance or maintenance, can be implemented under the situation of not stopping failing and carry out just only need close two stop valves.Microcomputer controller can once be provided with by per tour how many times or what minutes, and the action command that electric pushrod sends by microcomputer controller promotes pull bar through adjusting screw(rod) and travels forward; This moment, the fluorine gum cover was lived moisture analyzer probe with envelope; In the proal process of pull bar, just the moisture analyzer probe wax of hanging is scraped and wiped clean, and be pushed into the madial wall end of valve pocket; Under the effect of oil stream, the wax that is scraped flow back in the oil transportation Trunk Line through scavenge pipe.According to the program that microcomputer controller is set, pull bar will return to former starting point after will in valve pocket, stopping a stipulated time, and this work period accomplishes.
The present invention can self-timing, fixed ground paraffin removal, and the oil transportation Trunk Line need not stop to fail, and does not need dismounting, cleans moisture analyzer probe by hand, makes moisture analyzer survey the data true and accurate, and making crude oil, online to contain aquametry simple and reliable.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Embodiment:
With reference to Fig. 1, a valve body 6 that has valve pocket 7 is arranged, oil-in and the oil return opening that is communicated with valve pocket 7 is set on the valve body 6; Connect the oil inlet pipe that has circulating oil pump 2 and oil inlet pipe stop valve 3 and be connected to oil transportation Trunk Line 1 on the oil-in; Connect the scavenge pipe have scavenge pipe stop valve 4 and to be connected to oil transportation Trunk Line 1 on the oil return opening, on two relative sides of valve body 6, the moisture analyzer probe 5 of one of them lateral means and another lateral means pull bar 9; Moisture analyzer 5 front portions of popping one's head in are stretched in valve pocket 7; Pull bar 9 front portions are stretched in valve pocket 7, and stretch out outside valve body 6 at pull bar 9 rear portions, pull bar 9 and the sealing of valve body 6 end cap endoporus; Pull bar 9 valve body 6 relatively moves back and forth; Pull bar 9 front ends have an axial bore, and there is the side opening that communicates with its endoporus pull bar 9 sides, and pull bar 9 front end peripheries have the guiding wing limit that is supported on valve pocket 7 inwalls; The fluorine gum cover 8 that has center pit is housed in the annular groove of pull bar 9 endoporus front ends also to be fixed with interior jump ring 14 ends; The center line of the center pit of fluorine gum cover 8 and moisture analyzer probe 5 is on same straight line, and the excircle of the center-hole diameter of fluorine gum cover 8 and moisture analyzer probe 5 is adaptive, and the rear end of pull bar 9 is connected with electric pushrod 11 through having right-and-left threaded adjusting screw(rod) 10; Electric pushrod 11 connects microcomputer controller 12 through lead, and moisture analyzer probe 5 connects moisture analyzer 13 through lead.

Claims (4)

1. online moisture analyzer of crude oil; A valve body that has valve pocket is arranged; Oil-in and the oil return opening that is communicated with valve pocket is set on the valve body, connects the oil inlet pipe that has circulating oil pump and oil inlet pipe stop valve and be connected to the oil transportation Trunk Line on the oil-in, connect the scavenge pipe that has the scavenge pipe stop valve and be connected to the oil transportation Trunk Line on the oil return opening; It is characterized in that: on two relative sides of valve body (6); The moisture analyzer of one of them lateral means is popped one's head in (5) and another lateral means pull bar (9), and moisture analyzer probe (5) front portion is stretched in valve pocket (7), and pull bar (9) front portion is also stretched in valve pocket (7); Stretch out outside valve body (6) at pull bar (9) rear portion; Push away extension bar (9) and the sealing of valve body (6) end cap endoporus, the front end of pull bar (9) fixedly has the fluorine gum cover (8) of center pit, and the center line of the center pit of fluorine gum cover (8) and moisture analyzer probe (5) is on same straight line; The excircle of the center-hole diameter of fluorine gum cover (8) and moisture analyzer probe (5) is adaptive, and the rear end of pull bar (9) is connected with the push-and-pull propulsion system.
2. the online moisture analyzer of crude oil according to claim 1; It is characterized in that: pull bar (9) front end has an axial bore; There is the side opening that communicates with its endoporus pull bar (9) side; Pull bar (9) front end periphery has the guiding wing limit that is supported on valve pocket (7) inwall, and fluorine gum cover (8) is enclosed in the annular groove of pull bar (9) endoporus front end and fixes with interior jump ring (14) end.
3. the online moisture analyzer of crude oil according to claim 1 is characterized in that: the push-and-pull propulsion system that are connected with pull bar (9) are electric pushrod (11).
4. the online moisture analyzer of crude oil according to claim 1 is characterized in that: be connected through having right-and-left threaded adjusting screw(rod) (10) between pull bar (9) and the push-and-pull propulsion system.
CN201210300479.1A 2012-08-15 2012-08-15 Crude oil water-content on-line tester Active CN102830219B (en)

Priority Applications (1)

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CN102830219B CN102830219B (en) 2014-08-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833792A (en) * 2014-10-31 2015-08-12 锦州锦研科技有限责任公司 Water content analytic instrument annular probe and mounting structure thereof
CN105588933A (en) * 2015-12-12 2016-05-18 江曼 Petroleum pipeline online tester
CN106018172A (en) * 2016-05-24 2016-10-12 南通市飞宇石油科技开发有限公司 Method and apparatus for online detecting water and oil content in petroleum
CN111693677A (en) * 2020-06-18 2020-09-22 北京助创科技有限公司 System and method for measuring and guaranteeing water content of crude oil

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Publication number Priority date Publication date Assignee Title
US4055986A (en) * 1976-12-20 1977-11-01 Shell Oil Company Basic sediment and water measurement
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CN2452022Y (en) * 2000-11-29 2001-10-03 长春市宏宇电子节能设备开发有限责任公司 Analyzer for water percentage of high-precision curde oil
CN201522390U (en) * 2009-06-29 2010-07-07 马乔军 Automatic sampler of crude oil
CN202870083U (en) * 2012-08-15 2013-04-10 北京永兴精佳仪器有限公司 Online water determinator for crude oil

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US4055986A (en) * 1976-12-20 1977-11-01 Shell Oil Company Basic sediment and water measurement
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CN2159564Y (en) * 1993-03-13 1994-03-23 石成山 Crude oil low water content analyser
CN2436937Y (en) * 2000-07-22 2001-06-27 朱广升 Automatic erasing type sensor for investigating moisture in oil
CN2452022Y (en) * 2000-11-29 2001-10-03 长春市宏宇电子节能设备开发有限责任公司 Analyzer for water percentage of high-precision curde oil
CN201522390U (en) * 2009-06-29 2010-07-07 马乔军 Automatic sampler of crude oil
CN202870083U (en) * 2012-08-15 2013-04-10 北京永兴精佳仪器有限公司 Online water determinator for crude oil

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Title
张钟汉: "电容式水分析仪在原油检测中的应用", 《仪器仪表与应用》 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833792A (en) * 2014-10-31 2015-08-12 锦州锦研科技有限责任公司 Water content analytic instrument annular probe and mounting structure thereof
CN105588933A (en) * 2015-12-12 2016-05-18 江曼 Petroleum pipeline online tester
CN105588933B (en) * 2015-12-12 2017-12-05 南京轩世琪源软件科技有限公司 A kind of petroleum pipeline In-circiut tester
CN106018172A (en) * 2016-05-24 2016-10-12 南通市飞宇石油科技开发有限公司 Method and apparatus for online detecting water and oil content in petroleum
CN106018172B (en) * 2016-05-24 2019-06-21 南通市飞宇石油科技开发有限公司 A kind of device for on-line checking Water Content in Oil oil content
CN111693677A (en) * 2020-06-18 2020-09-22 北京助创科技有限公司 System and method for measuring and guaranteeing water content of crude oil

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